diff --git a/lib/amd/build/chartjs-lazy.min.js b/lib/amd/build/chartjs-lazy.min.js index 82033094c56..ec8a76d3042 100644 --- a/lib/amd/build/chartjs-lazy.min.js +++ b/lib/amd/build/chartjs-lazy.min.js @@ -1,3 +1,3 @@ -var global,factory;global=window,factory=function(){const requestAnimFrame="undefined"==typeof window?function(callback){return callback()}:window.requestAnimationFrame;function throttled(fn,thisArg,updateFn){const updateArgs=updateFn||(args=>Array.prototype.slice.call(args));let ticking=!1,args=[];return function(){for(var _len=arguments.length,rest=new Array(_len),_key=0;_key<_len;_key++)rest[_key]=arguments[_key];args=updateArgs(rest),ticking||(ticking=!0,requestAnimFrame.call(window,(()=>{ticking=!1,fn.apply(thisArg,args)})))}}function debounce(fn,delay){let timeout;return function(){for(var _len2=arguments.length,args=new Array(_len2),_key2=0;_key2<_len2;_key2++)args[_key2]=arguments[_key2];return delay?(clearTimeout(timeout),timeout=setTimeout(fn,delay,args)):fn.apply(this,args),delay}}const _toLeftRightCenter=align=>"start"===align?"left":"end"===align?"right":"center",_alignStartEnd=(align,start,end)=>"start"===align?start:"end"===align?end:(start+end)/2,_textX=(align,left,right,rtl)=>align===(rtl?"left":"right")?right:"center"===align?(left+right)/2:left;var animator=new class{constructor(){this._request=null,this._charts=new Map,this._running=!1,this._lastDate=void 0}_notify(chart,anims,date,type){const callbacks=anims.listeners[type],numSteps=anims.duration;callbacks.forEach((fn=>fn({chart:chart,initial:anims.initial,numSteps:numSteps,currentStep:Math.min(date-anims.start,numSteps)})))}_refresh(){this._request||(this._running=!0,this._request=requestAnimFrame.call(window,(()=>{this._update(),this._request=null,this._running&&this._refresh()})))}_update(){let date=arguments.length>0&&void 0!==arguments[0]?arguments[0]:Date.now(),remaining=0;this._charts.forEach(((anims,chart)=>{if(!anims.running||!anims.items.length)return;const items=anims.items;let item,i=items.length-1,draw=!1;for(;i>=0;--i)item=items[i],item._active?(item._total>anims.duration&&(anims.duration=item._total),item.tick(date),draw=!0):(items[i]=items[items.length-1],items.pop());draw&&(chart.draw(),this._notify(chart,anims,date,"progress")),items.length||(anims.running=!1,this._notify(chart,anims,date,"complete"),anims.initial=!1),remaining+=items.length})),this._lastDate=date,0===remaining&&(this._running=!1)}_getAnims(chart){const charts=this._charts;let anims=charts.get(chart);return anims||(anims={running:!1,initial:!0,items:[],listeners:{complete:[],progress:[]}},charts.set(chart,anims)),anims}listen(chart,event,cb){this._getAnims(chart).listeners[event].push(cb)}add(chart,items){items&&items.length&&this._getAnims(chart).items.push(...items)}has(chart){return this._getAnims(chart).items.length>0}start(chart){const anims=this._charts.get(chart);anims&&(anims.running=!0,anims.start=Date.now(),anims.duration=anims.items.reduce(((acc,cur)=>Math.max(acc,cur._duration)),0),this._refresh())}running(chart){if(!this._running)return!1;const anims=this._charts.get(chart);return!!(anims&&anims.running&&anims.items.length)}stop(chart){const anims=this._charts.get(chart);if(!anims||!anims.items.length)return;const items=anims.items;let i=items.length-1;for(;i>=0;--i)items[i].cancel();anims.items=[],this._notify(chart,anims,Date.now(),"complete")}remove(chart){return this._charts.delete(chart)}};function round(v){return v+.5|0}const lim=(v,l,h)=>Math.max(Math.min(v,h),l);function p2b(v){return lim(round(2.55*v),0,255)}function n2b(v){return lim(round(255*v),0,255)}function b2n(v){return lim(round(v/2.55)/100,0,1)}function n2p(v){return lim(round(100*v),0,100)}const map$1={0:0,1:1,2:2,3:3,4:4,5:5,6:6,7:7,8:8,9:9,A:10,B:11,C:12,D:13,E:14,F:15,a:10,b:11,c:12,d:13,e:14,f:15},hex=[..."0123456789ABCDEF"],h1=b=>hex[15&b],h2=b=>hex[(240&b)>>4]+hex[15&b],eq=b=>(240&b)>>4==(15&b);function hexString(v){var f=(v=>eq(v.r)&&eq(v.g)&&eq(v.b)&&eq(v.a))(v)?h1:h2;return v?"#"+f(v.r)+f(v.g)+f(v.b)+((a,f)=>a<255?f(a):"")(v.a,f):void 0}const HUE_RE=/^(hsla?|hwb|hsv)\(\s*([-+.e\d]+)(?:deg)?[\s,]+([-+.e\d]+)%[\s,]+([-+.e\d]+)%(?:[\s,]+([-+.e\d]+)(%)?)?\s*\)$/;function hsl2rgbn(h,s,l){const a=s*Math.min(l,1-l),f=function(n){let k=arguments.length>1&&void 0!==arguments[1]?arguments[1]:(n+h/30)%12;return l-a*Math.max(Math.min(k-3,9-k,1),-1)};return[f(0),f(8),f(4)]}function hsv2rgbn(h,s,v){const f=function(n){let k=arguments.length>1&&void 0!==arguments[1]?arguments[1]:(n+h/60)%6;return v-v*s*Math.max(Math.min(k,4-k,1),0)};return[f(5),f(3),f(1)]}function hwb2rgbn(h,w,b){const rgb=hsl2rgbn(h,1,.5);let i;for(w+b>1&&(i=1/(w+b),w*=i,b*=i),i=0;i<3;i++)rgb[i]*=1-w-b,rgb[i]+=w;return rgb}function rgb2hsl(v){const r=v.r/255,g=v.g/255,b=v.b/255,max=Math.max(r,g,b),min=Math.min(r,g,b),l=(max+min)/2;let h,s,d;return max!==min&&(d=max-min,s=l>.5?d/(2-max-min):d/(max+min),h=function(r,g,b,d,max){return r===max?(g-b)/d+(g>16&255,k>>8&255,255&k]}return unpacked}(),names.transparent=[0,0,0,0]);const a=names[str.toLowerCase()];return a&&{r:a[0],g:a[1],b:a[2],a:4===a.length?a[3]:255}}const RGB_RE=/^rgba?\(\s*([-+.\d]+)(%)?[\s,]+([-+.e\d]+)(%)?[\s,]+([-+.e\d]+)(%)?(?:[\s,/]+([-+.e\d]+)(%)?)?\s*\)$/,to=v=>v<=.0031308?12.92*v:1.055*Math.pow(v,1/2.4)-.055,from=v=>v<=.04045?v/12.92:Math.pow((v+.055)/1.055,2.4);function modHSL(v,i,ratio){if(v){let tmp=rgb2hsl(v);tmp[i]=Math.max(0,Math.min(tmp[i]+tmp[i]*ratio,0===i?360:1)),tmp=hsl2rgb(tmp),v.r=tmp[0],v.g=tmp[1],v.b=tmp[2]}}function clone$1(v,proto){return v?Object.assign(proto||{},v):v}function fromObject(input){var v={r:0,g:0,b:0,a:255};return Array.isArray(input)?input.length>=3&&(v={r:input[0],g:input[1],b:input[2],a:255},input.length>3&&(v.a=n2b(input[3]))):(v=clone$1(input,{r:0,g:0,b:0,a:1})).a=n2b(v.a),v}function functionParse(str){return"r"===str.charAt(0)?function(str){const m=RGB_RE.exec(str);let r,g,b,a=255;if(m){if(m[7]!==r){const v=+m[7];a=m[8]?p2b(v):lim(255*v,0,255)}return r=+m[1],g=+m[3],b=+m[5],r=255&(m[2]?p2b(r):lim(r,0,255)),g=255&(m[4]?p2b(g):lim(g,0,255)),b=255&(m[6]?p2b(b):lim(b,0,255)),{r:r,g:g,b:b,a:a}}}(str):hueParse(str)}class Color{constructor(input){if(input instanceof Color)return input;const type=typeof input;let v;var 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":"")+(font.weight?font.weight+" ":"")+font.size+"px "+font.family}function _measureText(ctx,data,gc,longest,string){let textWidth=data[string];return textWidth||(textWidth=data[string]=ctx.measureText(string).width,gc.push(string)),textWidth>longest&&(longest=textWidth),longest}function _longestText(ctx,font,arrayOfThings,cache){let data=(cache=cache||{}).data=cache.data||{},gc=cache.garbageCollect=cache.garbageCollect||[];cache.font!==font&&(data=cache.data={},gc=cache.garbageCollect=[],cache.font=font),ctx.save(),ctx.font=font;let longest=0;const ilen=arrayOfThings.length;let i,j,jlen,thing,nestedThing;for(i=0;iarrayOfThings.length){for(i=0;i0&&ctx.stroke()}}function _isPointInArea(point,area,margin){return margin=margin||.5,!area||point&&point.x>area.left-margin&&point.xarea.top-margin&&point.y5&&void 0!==arguments[5]?arguments[5]:{};const lines=isArray(text)?text:[text],stroke=opts.strokeWidth>0&&""!==opts.strokeColor;let i,line;for(ctx.save(),ctx.font=font.string,setRenderOpts(ctx,opts),i=0;i1&&void 0!==arguments[1]?arguments[1]:[""],rootScopes=arguments.length>2&&void 0!==arguments[2]?arguments[2]:scopes,fallback=arguments.length>3?arguments[3]:void 0,getTarget=arguments.length>4&&void 0!==arguments[4]?arguments[4]:()=>scopes[0];defined(fallback)||(fallback=_resolve("_fallback",scopes));const cache={[Symbol.toStringTag]:"Object",_cacheable:!0,_scopes:scopes,_rootScopes:rootScopes,_fallback:fallback,_getTarget:getTarget,override:scope=>_createResolver([scope,...scopes],prefixes,rootScopes,fallback)};return new Proxy(cache,{deleteProperty:(target,prop)=>(delete target[prop],delete target._keys,delete scopes[0][prop],!0),get:(target,prop)=>_cached(target,prop,(()=>_resolveWithPrefixes(prop,prefixes,scopes,target))),getOwnPropertyDescriptor:(target,prop)=>Reflect.getOwnPropertyDescriptor(target._scopes[0],prop),getPrototypeOf:()=>Reflect.getPrototypeOf(scopes[0]),has:(target,prop)=>getKeysFromAllScopes(target).includes(prop),ownKeys:target=>getKeysFromAllScopes(target),set(target,prop,value){const storage=target._storage||(target._storage=getTarget());return target[prop]=storage[prop]=value,delete target._keys,!0}})}function _attachContext(proxy,context,subProxy,descriptorDefaults){const cache={_cacheable:!1,_proxy:proxy,_context:context,_subProxy:subProxy,_stack:new Set,_descriptors:_descriptors(proxy,descriptorDefaults),setContext:ctx=>_attachContext(proxy,ctx,subProxy,descriptorDefaults),override:scope=>_attachContext(proxy.override(scope),context,subProxy,descriptorDefaults)};return new Proxy(cache,{deleteProperty:(target,prop)=>(delete target[prop],delete proxy[prop],!0),get:(target,prop,receiver)=>_cached(target,prop,(()=>function(target,prop,receiver){const{_proxy:_proxy,_context:_context,_subProxy:_subProxy,_descriptors:descriptors}=target;let value=_proxy[prop];return isFunction(value)&&descriptors.isScriptable(prop)&&(value=function(prop,value,target,receiver){const{_proxy:_proxy,_context:_context,_subProxy:_subProxy,_stack:_stack}=target;if(_stack.has(prop))throw new Error("Recursion detected: "+Array.from(_stack).join("->")+"->"+prop);return _stack.add(prop),value=value(_context,_subProxy||receiver),_stack.delete(prop),needsSubResolver(prop,value)&&(value=createSubResolver(_proxy._scopes,_proxy,prop,value)),value}(prop,value,target,receiver)),isArray(value)&&value.length&&(value=function(prop,value,target,isIndexable){const{_proxy:_proxy,_context:_context,_subProxy:_subProxy,_descriptors:descriptors}=target;if(defined(_context.index)&&isIndexable(prop))value=value[_context.index%value.length];else if(isObject(value[0])){const arr=value,scopes=_proxy._scopes.filter((s=>s!==arr));value=[];for(const item of arr){const resolver=createSubResolver(scopes,_proxy,prop,item);value.push(_attachContext(resolver,_context,_subProxy&&_subProxy[prop],descriptors))}}return value}(prop,value,target,descriptors.isIndexable)),needsSubResolver(prop,value)&&(value=_attachContext(value,_context,_subProxy&&_subProxy[prop],descriptors)),value}(target,prop,receiver))),getOwnPropertyDescriptor:(target,prop)=>target._descriptors.allKeys?Reflect.has(proxy,prop)?{enumerable:!0,configurable:!0}:void 0:Reflect.getOwnPropertyDescriptor(proxy,prop),getPrototypeOf:()=>Reflect.getPrototypeOf(proxy),has:(target,prop)=>Reflect.has(proxy,prop),ownKeys:()=>Reflect.ownKeys(proxy),set:(target,prop,value)=>(proxy[prop]=value,delete target[prop],!0)})}function _descriptors(proxy){let defaults=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{scriptable:!0,indexable:!0};const{_scriptable:_scriptable=defaults.scriptable,_indexable:_indexable=defaults.indexable,_allKeys:_allKeys=defaults.allKeys}=proxy;return{allKeys:_allKeys,scriptable:_scriptable,indexable:_indexable,isScriptable:isFunction(_scriptable)?_scriptable:()=>_scriptable,isIndexable:isFunction(_indexable)?_indexable:()=>_indexable}}const readKey=(prefix,name)=>prefix?prefix+_capitalize(name):name,needsSubResolver=(prop,value)=>isObject(value)&&"adapters"!==prop&&(null===Object.getPrototypeOf(value)||value.constructor===Object);function _cached(target,prop,resolve){if(Object.prototype.hasOwnProperty.call(target,prop))return target[prop];const value=resolve();return target[prop]=value,value}function resolveFallback(fallback,prop,value){return isFunction(fallback)?fallback(prop,value):fallback}const getScope=(key,parent)=>!0===key?parent:"string"==typeof key?resolveObjectKey(parent,key):void 0;function addScopes(set,parentScopes,key,parentFallback,value){for(const parent of parentScopes){const scope=getScope(key,parent);if(scope){set.add(scope);const fallback=resolveFallback(scope._fallback,key,value);if(defined(fallback)&&fallback!==key&&fallback!==parentFallback)return fallback}else if(!1===scope&&defined(parentFallback)&&key!==parentFallback)return null}return!1}function createSubResolver(parentScopes,resolver,prop,value){const rootScopes=resolver._rootScopes,fallback=resolveFallback(resolver._fallback,prop,value),allScopes=[...parentScopes,...rootScopes],set=new Set;set.add(value);let key=addScopesFromKey(set,allScopes,prop,fallback||prop,value);return null!==key&&(!defined(fallback)||fallback===prop||(key=addScopesFromKey(set,allScopes,fallback,key,value),null!==key))&&_createResolver(Array.from(set),[""],rootScopes,fallback,(()=>function(resolver,prop,value){const parent=resolver._getTarget();prop in parent||(parent[prop]={});const target=parent[prop];return isArray(target)&&isObject(value)?value:target}(resolver,prop,value)))}function addScopesFromKey(set,allScopes,key,fallback,item){for(;key;)key=addScopes(set,allScopes,key,fallback,item);return key}function _resolveWithPrefixes(prop,prefixes,scopes,proxy){let value;for(const prefix of prefixes)if(value=_resolve(readKey(prefix,prop),scopes),defined(value))return needsSubResolver(prop,value)?createSubResolver(scopes,proxy,prop,value):value}function _resolve(key,scopes){for(const scope of scopes){if(!scope)continue;const value=scope[key];if(defined(value))return value}}function getKeysFromAllScopes(target){let keys=target._keys;return keys||(keys=target._keys=function(scopes){const set=new Set;for(const scope of scopes)for(const key of Object.keys(scope).filter((k=>!k.startsWith("_"))))set.add(key);return Array.from(set)}(target._scopes)),keys}function _parseObjectDataRadialScale(meta,data,start,count){const{iScale:iScale}=meta,{key:key="r"}=this._parsing,parsed=new Array(count);let i,ilen,index,item;for(i=0,ilen=count;ii"x"===indexAxis?"y":"x";function splineCurve(firstPoint,middlePoint,afterPoint,t){const previous=firstPoint.skip?middlePoint:firstPoint,current=middlePoint,next=afterPoint.skip?middlePoint:afterPoint,d01=distanceBetweenPoints(current,previous),d12=distanceBetweenPoints(next,current);let s01=d01/(d01+d12),s12=d12/(d01+d12);s01=isNaN(s01)?0:s01,s12=isNaN(s12)?0:s12;const fa=t*s01,fb=t*s12;return{previous:{x:current.x-fa*(next.x-previous.x),y:current.y-fa*(next.y-previous.y)},next:{x:current.x+fb*(next.x-previous.x),y:current.y+fb*(next.y-previous.y)}}}function monotoneAdjust(points,deltaK,mK){const pointsLen=points.length;let alphaK,betaK,tauK,squaredMagnitude,pointCurrent,pointAfter=getPoint(points,0);for(let i=0;i2&&void 0!==arguments[2]?arguments[2]:"x";const valueAxis=getValueAxis(indexAxis),pointsLen=points.length;let delta,pointBefore,pointCurrent,pointAfter=getPoint(points,0);for(let i=0;i1&&void 0!==arguments[1]?arguments[1]:"x";const valueAxis=getValueAxis(indexAxis),pointsLen=points.length,deltaK=Array(pointsLen).fill(0),mK=Array(pointsLen);let i,pointBefore,pointCurrent,pointAfter=getPoint(points,0);for(i=0;i!pt.skip))),"monotone"===options.cubicInterpolationMode)splineCurveMonotone(points,indexAxis);else{let prev=loop?points[points.length-1]:points[0];for(i=0,ilen=points.length;i0===t||1===t,elasticIn=(t,s,p)=>-Math.pow(2,10*(t-=1))*Math.sin((t-s)*TAU/p),elasticOut=(t,s,p)=>Math.pow(2,-10*t)*Math.sin((t-s)*TAU/p)+1,effects={linear:t=>t,easeInQuad:t=>t*t,easeOutQuad:t=>-t*(t-2),easeInOutQuad:t=>(t/=.5)<1?.5*t*t:-.5*(--t*(t-2)-1),easeInCubic:t=>t*t*t,easeOutCubic:t=>(t-=1)*t*t+1,easeInOutCubic:t=>(t/=.5)<1?.5*t*t*t:.5*((t-=2)*t*t+2),easeInQuart:t=>t*t*t*t,easeOutQuart:t=>-((t-=1)*t*t*t-1),easeInOutQuart:t=>(t/=.5)<1?.5*t*t*t*t:-.5*((t-=2)*t*t*t-2),easeInQuint:t=>t*t*t*t*t,easeOutQuint:t=>(t-=1)*t*t*t*t+1,easeInOutQuint:t=>(t/=.5)<1?.5*t*t*t*t*t:.5*((t-=2)*t*t*t*t+2),easeInSine:t=>1-Math.cos(t*HALF_PI),easeOutSine:t=>Math.sin(t*HALF_PI),easeInOutSine:t=>-.5*(Math.cos(PI*t)-1),easeInExpo:t=>0===t?0:Math.pow(2,10*(t-1)),easeOutExpo:t=>1===t?1:1-Math.pow(2,-10*t),easeInOutExpo:t=>atEdge(t)?t:t<.5?.5*Math.pow(2,10*(2*t-1)):.5*(2-Math.pow(2,-10*(2*t-1))),easeInCirc:t=>t>=1?t:-(Math.sqrt(1-t*t)-1),easeOutCirc:t=>Math.sqrt(1-(t-=1)*t),easeInOutCirc:t=>(t/=.5)<1?-.5*(Math.sqrt(1-t*t)-1):.5*(Math.sqrt(1-(t-=2)*t)+1),easeInElastic:t=>atEdge(t)?t:elasticIn(t,.075,.3),easeOutElastic:t=>atEdge(t)?t:elasticOut(t,.075,.3),easeInOutElastic(t){const s=.1125;return atEdge(t)?t:t<.5?.5*elasticIn(2*t,s,.45):.5+.5*elasticOut(2*t-1,s,.45)},easeInBack(t){const s=1.70158;return t*t*((s+1)*t-s)},easeOutBack(t){const s=1.70158;return(t-=1)*t*((s+1)*t+s)+1},easeInOutBack(t){let s=1.70158;return(t/=.5)<1?t*t*((1+(s*=1.525))*t-s)*.5:.5*((t-=2)*t*((1+(s*=1.525))*t+s)+2)},easeInBounce:t=>1-effects.easeOutBounce(1-t),easeOutBounce(t){const m=7.5625,d=2.75;return t<1/d?m*t*t:t<2/d?m*(t-=1.5/d)*t+.75:t<2.5/d?m*(t-=2.25/d)*t+.9375:m*(t-=2.625/d)*t+.984375},easeInOutBounce:t=>t<.5?.5*effects.easeInBounce(2*t):.5*effects.easeOutBounce(2*t-1)+.5};function _pointInLine(p1,p2,t,mode){return{x:p1.x+t*(p2.x-p1.x),y:p1.y+t*(p2.y-p1.y)}}function _steppedInterpolation(p1,p2,t,mode){return{x:p1.x+t*(p2.x-p1.x),y:"middle"===mode?t<.5?p1.y:p2.y:"after"===mode?t<1?p1.y:p2.y:t>0?p2.y:p1.y}}function _bezierInterpolation(p1,p2,t,mode){const cp1={x:p1.cp2x,y:p1.cp2y},cp2={x:p2.cp1x,y:p2.cp1y},a=_pointInLine(p1,cp1,t),b=_pointInLine(cp1,cp2,t),c=_pointInLine(cp2,p2,t),d=_pointInLine(a,b,t),e=_pointInLine(b,c,t);return _pointInLine(d,e,t)}const intlCache=new Map;function formatNumber(num,locale,options){return function(locale,options){options=options||{};const cacheKey=locale+JSON.stringify(options);let formatter=intlCache.get(cacheKey);return formatter||(formatter=new Intl.NumberFormat(locale,options),intlCache.set(cacheKey,formatter)),formatter}(locale,options).format(num)}const LINE_HEIGHT=new RegExp(/^(normal|(\d+(?:\.\d+)?)(px|em|%)?)$/),FONT_STYLE=new RegExp(/^(normal|italic|initial|inherit|unset|(oblique( -?[0-9]?[0-9]deg)?))$/);function toLineHeight(value,size){const matches=(""+value).match(LINE_HEIGHT);if(!matches||"normal"===matches[1])return 1.2*size;switch(value=+matches[2],matches[3]){case"px":return value;case"%":value/=100}return size*value}function _readValueToProps(value,props){const ret={},objProps=isObject(props),keys=objProps?Object.keys(props):props,read=isObject(value)?objProps?prop=>valueOrDefault(value[prop],value[props[prop]]):prop=>value[prop]:()=>value;for(const prop of keys)ret[prop]=+read(prop)||0;return ret}function toTRBL(value){return _readValueToProps(value,{top:"y",right:"x",bottom:"y",left:"x"})}function toTRBLCorners(value){return _readValueToProps(value,["topLeft","topRight","bottomLeft","bottomRight"])}function toPadding(value){const obj=toTRBL(value);return obj.width=obj.left+obj.right,obj.height=obj.top+obj.bottom,obj}function toFont(options,fallback){options=options||{},fallback=fallback||defaults.font;let size=valueOrDefault(options.size,fallback.size);"string"==typeof size&&(size=parseInt(size,10));let style=valueOrDefault(options.style,fallback.style);style&&!(""+style).match(FONT_STYLE)&&(console.warn('Invalid font style specified: "'+style+'"'),style="");const font={family:valueOrDefault(options.family,fallback.family),lineHeight:toLineHeight(valueOrDefault(options.lineHeight,fallback.lineHeight),size),size:size,style:style,weight:valueOrDefault(options.weight,fallback.weight),string:""};return font.string=toFontString(font),font}function resolve(inputs,context,index,info){let i,ilen,value,cacheable=!0;for(i=0,ilen=inputs.length;ibeginAtZero&&0===value?0:value+add;return{min:keepZero(min,-Math.abs(change)),max:keepZero(max,change)}}function createContext(parentContext,context){return Object.assign(Object.create(parentContext),context)}function getRtlAdapter(rtl,rectX,width){return rtl?function(rectX,width){return{x:x=>rectX+rectX+width-x,setWidth(w){width=w},textAlign:align=>"center"===align?align:"right"===align?"left":"right",xPlus:(x,value)=>x-value,leftForLtr:(x,itemWidth)=>x-itemWidth}}(rectX,width):{x:x=>x,setWidth(w){},textAlign:align=>align,xPlus:(x,value)=>x+value,leftForLtr:(x,_itemWidth)=>x}}function overrideTextDirection(ctx,direction){let style,original;"ltr"!==direction&&"rtl"!==direction||(style=ctx.canvas.style,original=[style.getPropertyValue("direction"),style.getPropertyPriority("direction")],style.setProperty("direction",direction,"important"),ctx.prevTextDirection=original)}function restoreTextDirection(ctx,original){void 0!==original&&(delete ctx.prevTextDirection,ctx.canvas.style.setProperty("direction",original[0],original[1]))}function propertyFn(property){return"angle"===property?{between:_angleBetween,compare:_angleDiff,normalize:_normalizeAngle}:{between:_isBetween,compare:(a,b)=>a-b,normalize:x=>x}}function normalizeSegment(_ref){let{start:start,end:end,count:count,loop:loop,style:style}=_ref;return{start:start%count,end:end%count,loop:loop&&(end-start+1)%count==0,style:style}}function _boundSegment(segment,points,bounds){if(!bounds)return[segment];const{property:property,start:startBound,end:endBound}=bounds,count=points.length,{compare:compare,between:between,normalize:normalize}=propertyFn(property),{start:start,end:end,loop:loop,style:style}=function(segment,points,bounds){const{property:property,start:startBound,end:endBound}=bounds,{between:between,normalize:normalize}=propertyFn(property),count=points.length;let i,ilen,{start:start,end:end,loop:loop}=segment;if(loop){for(start+=count,end+=count,i=0,ilen=count;iinside||between(startBound,prevValue,value)&&0!==compare(startBound,prevValue),shouldStop=()=>!inside||0===compare(endBound,value)||between(endBound,prevValue,value);for(let i=start,prev=start;i<=end;++i)point=points[i%count],point.skip||(value=normalize(point[property]),value!==prevValue&&(inside=between(value,startBound,endBound),null===subStart&&shouldStart()&&(subStart=0===compare(value,startBound)?i:prev),null!==subStart&&shouldStop()&&(result.push(normalizeSegment({start:subStart,end:i,loop:loop,count:count,style:style})),subStart=null),prev=i,prevValue=value));return null!==subStart&&result.push(normalizeSegment({start:subStart,end:end,loop:loop,count:count,style:style})),result}function _boundSegments(line,bounds){const result=[],segments=line.segments;for(let i=0;istart&&points[end%count].skip;)end--;return end%=count,{start:start,end:end}}(points,count,loop,spanGaps);return splitByStyles(line,!0===spanGaps?[{start:start,end:end,loop:loop}]:function(points,start,max,loop){const count=points.length,result=[];let end,last=start,prev=points[start];for(end=start+1;end<=max;++end){const cur=points[end%count];cur.skip||cur.stop?prev.skip||(loop=!1,result.push({start:start%count,end:(end-1)%count,loop:loop}),start=last=cur.stop?end:null):(last=end,prev.skip&&(start=end)),prev=cur}return null!==last&&result.push({start:start%count,end:last%count,loop:loop}),result}(points,start,end{element[rangeMethod](position[axis],useFinalPosition)&&(items.push({element:element,datasetIndex:datasetIndex,index:index}),intersectsItem=intersectsItem||element.inRange(position.x,position.y,useFinalPosition))})),intersect&&!intersectsItem?[]:items}var Interaction={evaluateInteractionItems:evaluateInteractionItems,modes:{index(chart,e,options,useFinalPosition){const position=getRelativePosition(e,chart),axis=options.axis||"x",includeInvisible=options.includeInvisible||!1,items=options.intersect?getIntersectItems(chart,position,axis,useFinalPosition,includeInvisible):getNearestItems(chart,position,axis,!1,useFinalPosition,includeInvisible),elements=[];return items.length?(chart.getSortedVisibleDatasetMetas().forEach((meta=>{const index=items[0].index,element=meta.data[index];element&&!element.skip&&elements.push({element:element,datasetIndex:meta.index,index:index})})),elements):[]},dataset(chart,e,options,useFinalPosition){const position=getRelativePosition(e,chart),axis=options.axis||"xy",includeInvisible=options.includeInvisible||!1;let items=options.intersect?getIntersectItems(chart,position,axis,useFinalPosition,includeInvisible):getNearestItems(chart,position,axis,!1,useFinalPosition,includeInvisible);if(items.length>0){const datasetIndex=items[0].datasetIndex,data=chart.getDatasetMeta(datasetIndex).data;items=[];for(let i=0;igetIntersectItems(chart,getRelativePosition(e,chart),options.axis||"xy",useFinalPosition,options.includeInvisible||!1),nearest(chart,e,options,useFinalPosition){const position=getRelativePosition(e,chart),axis=options.axis||"xy",includeInvisible=options.includeInvisible||!1;return getNearestItems(chart,position,axis,options.intersect,useFinalPosition,includeInvisible)},x:(chart,e,options,useFinalPosition)=>getAxisItems(chart,getRelativePosition(e,chart),"x",options.intersect,useFinalPosition),y:(chart,e,options,useFinalPosition)=>getAxisItems(chart,getRelativePosition(e,chart),"y",options.intersect,useFinalPosition)}};const STATIC_POSITIONS=["left","top","right","bottom"];function filterByPosition(array,position){return array.filter((v=>v.pos===position))}function filterDynamicPositionByAxis(array,axis){return array.filter((v=>-1===STATIC_POSITIONS.indexOf(v.pos)&&v.box.axis===axis))}function sortByWeight(array,reverse){return array.sort(((a,b)=>{const v0=reverse?b:a,v1=reverse?a:b;return v0.weight===v1.weight?v0.index-v1.index:v0.weight-v1.weight}))}function setLayoutDims(layouts,params){const stacks=function(layouts){const stacks={};for(const wrap of layouts){const{stack:stack,pos:pos,stackWeight:stackWeight}=wrap;if(!stack||!STATIC_POSITIONS.includes(pos))continue;const _stack=stacks[stack]||(stacks[stack]={count:0,placed:0,weight:0,size:0});_stack.count++,_stack.weight+=stackWeight}return stacks}(layouts),{vBoxMaxWidth:vBoxMaxWidth,hBoxMaxHeight:hBoxMaxHeight}=params;let i,ilen,layout;for(i=0,ilen=layouts.length;i{margin[pos]=Math.max(chartArea[pos],maxPadding[pos])})),margin}return marginForPositions(horizontal?["left","right"]:["top","bottom"])}function fitBoxes(boxes,chartArea,params,stacks){const refitBoxes=[];let i,ilen,layout,box,refit,changed;for(i=0,ilen=boxes.length,refit=0;iwrap.box.fullSize)),!0),left=sortByWeight(filterByPosition(layoutBoxes,"left"),!0),right=sortByWeight(filterByPosition(layoutBoxes,"right")),top=sortByWeight(filterByPosition(layoutBoxes,"top"),!0),bottom=sortByWeight(filterByPosition(layoutBoxes,"bottom")),centerHorizontal=filterDynamicPositionByAxis(layoutBoxes,"x"),centerVertical=filterDynamicPositionByAxis(layoutBoxes,"y");return{fullSize:fullSize,leftAndTop:left.concat(top),rightAndBottom:right.concat(centerVertical).concat(bottom).concat(centerHorizontal),chartArea:filterByPosition(layoutBoxes,"chartArea"),vertical:left.concat(right).concat(centerVertical),horizontal:top.concat(bottom).concat(centerHorizontal)}}(chart.boxes),verticalBoxes=boxes.vertical,horizontalBoxes=boxes.horizontal;each(chart.boxes,(box=>{"function"==typeof box.beforeLayout&&box.beforeLayout()}));const visibleVerticalBoxCount=verticalBoxes.reduce(((total,wrap)=>wrap.box.options&&!1===wrap.box.options.display?total:total+1),0)||1,params=Object.freeze({outerWidth:width,outerHeight:height,padding:padding,availableWidth:availableWidth,availableHeight:availableHeight,vBoxMaxWidth:availableWidth/2/visibleVerticalBoxCount,hBoxMaxHeight:availableHeight/2}),maxPadding=Object.assign({},padding);updateMaxPadding(maxPadding,toPadding(minPadding));const chartArea=Object.assign({maxPadding:maxPadding,w:availableWidth,h:availableHeight,x:padding.left,y:padding.top},padding),stacks=setLayoutDims(verticalBoxes.concat(horizontalBoxes),params);fitBoxes(boxes.fullSize,chartArea,params,stacks),fitBoxes(verticalBoxes,chartArea,params,stacks),fitBoxes(horizontalBoxes,chartArea,params,stacks)&&fitBoxes(verticalBoxes,chartArea,params,stacks),function(chartArea){const maxPadding=chartArea.maxPadding;function updatePos(pos){const change=Math.max(maxPadding[pos]-chartArea[pos],0);return chartArea[pos]+=change,change}chartArea.y+=updatePos("top"),chartArea.x+=updatePos("left"),updatePos("right"),updatePos("bottom")}(chartArea),placeBoxes(boxes.leftAndTop,chartArea,params,stacks),chartArea.x+=chartArea.w,chartArea.y+=chartArea.h,placeBoxes(boxes.rightAndBottom,chartArea,params,stacks),chart.chartArea={left:chartArea.left,top:chartArea.top,right:chartArea.left+chartArea.w,bottom:chartArea.top+chartArea.h,height:chartArea.h,width:chartArea.w},each(boxes.chartArea,(layout=>{const box=layout.box;Object.assign(box,chart.chartArea),box.update(chartArea.w,chartArea.h,{left:0,top:0,right:0,bottom:0})}))}};class BasePlatform{acquireContext(canvas,aspectRatio){}releaseContext(context){return!1}addEventListener(chart,type,listener){}removeEventListener(chart,type,listener){}getDevicePixelRatio(){return 1}getMaximumSize(element,width,height,aspectRatio){return width=Math.max(0,width||element.width),height=height||element.height,{width:width,height:Math.max(0,aspectRatio?Math.floor(width/aspectRatio):height)}}isAttached(canvas){return!0}updateConfig(config){}}class BasicPlatform extends BasePlatform{acquireContext(item){return item&&item.getContext&&item.getContext("2d")||null}updateConfig(config){config.options.animation=!1}}const EVENT_TYPES={touchstart:"mousedown",touchmove:"mousemove",touchend:"mouseup",pointerenter:"mouseenter",pointerdown:"mousedown",pointermove:"mousemove",pointerup:"mouseup",pointerleave:"mouseout",pointerout:"mouseout"},isNullOrEmpty=value=>null===value||""===value,eventListenerOptions=!!supportsEventListenerOptions&&{passive:!0};function removeListener(chart,type,listener){chart.canvas.removeEventListener(type,listener,eventListenerOptions)}function nodeListContains(nodeList,canvas){for(const node of nodeList)if(node===canvas||node.contains(canvas))return!0}function createAttachObserver(chart,type,listener){const canvas=chart.canvas,observer=new MutationObserver((entries=>{let trigger=!1;for(const entry of entries)trigger=trigger||nodeListContains(entry.addedNodes,canvas),trigger=trigger&&!nodeListContains(entry.removedNodes,canvas);trigger&&listener()}));return observer.observe(document,{childList:!0,subtree:!0}),observer}function createDetachObserver(chart,type,listener){const canvas=chart.canvas,observer=new MutationObserver((entries=>{let trigger=!1;for(const entry of entries)trigger=trigger||nodeListContains(entry.removedNodes,canvas),trigger=trigger&&!nodeListContains(entry.addedNodes,canvas);trigger&&listener()}));return observer.observe(document,{childList:!0,subtree:!0}),observer}const drpListeningCharts=new Map;let oldDevicePixelRatio=0;function onWindowResize(){const dpr=window.devicePixelRatio;dpr!==oldDevicePixelRatio&&(oldDevicePixelRatio=dpr,drpListeningCharts.forEach(((resize,chart)=>{chart.currentDevicePixelRatio!==dpr&&resize()})))}function createResizeObserver(chart,type,listener){const canvas=chart.canvas,container=canvas&&_getParentNode(canvas);if(!container)return;const resize=throttled(((width,height)=>{const w=container.clientWidth;listener(width,height),w{const entry=entries[0],width=entry.contentRect.width,height=entry.contentRect.height;0===width&&0===height||resize(width,height)}));return observer.observe(container),function(chart,resize){drpListeningCharts.size||window.addEventListener("resize",onWindowResize),drpListeningCharts.set(chart,resize)}(chart,resize),observer}function releaseObserver(chart,type,observer){observer&&observer.disconnect(),"resize"===type&&function(chart){drpListeningCharts.delete(chart),drpListeningCharts.size||window.removeEventListener("resize",onWindowResize)}(chart)}function createProxyAndListen(chart,type,listener){const canvas=chart.canvas,proxy=throttled((event=>{null!==chart.ctx&&listener(function(event,chart){const type=EVENT_TYPES[event.type]||event.type,{x:x,y:y}=getRelativePosition(event,chart);return{type:type,chart:chart,native:event,x:void 0!==x?x:null,y:void 0!==y?y:null}}(event,chart))}),chart,(args=>{const event=args[0];return[event,event.offsetX,event.offsetY]}));return function(node,type,listener){node.addEventListener(type,listener,eventListenerOptions)}(canvas,type,proxy),proxy}class DomPlatform extends BasePlatform{acquireContext(canvas,aspectRatio){const context=canvas&&canvas.getContext&&canvas.getContext("2d");return context&&context.canvas===canvas?(function(canvas,aspectRatio){const style=canvas.style,renderHeight=canvas.getAttribute("height"),renderWidth=canvas.getAttribute("width");if(canvas.$chartjs={initial:{height:renderHeight,width:renderWidth,style:{display:style.display,height:style.height,width:style.width}}},style.display=style.display||"block",style.boxSizing=style.boxSizing||"border-box",isNullOrEmpty(renderWidth)){const displayWidth=readUsedSize(canvas,"width");void 0!==displayWidth&&(canvas.width=displayWidth)}if(isNullOrEmpty(renderHeight))if(""===canvas.style.height)canvas.height=canvas.width/(aspectRatio||2);else{const displayHeight=readUsedSize(canvas,"height");void 0!==displayHeight&&(canvas.height=displayHeight)}}(canvas,aspectRatio),context):null}releaseContext(context){const canvas=context.canvas;if(!canvas.$chartjs)return!1;const initial=canvas.$chartjs.initial;["height","width"].forEach((prop=>{const value=initial[prop];isNullOrUndef(value)?canvas.removeAttribute(prop):canvas.setAttribute(prop,value)}));const style=initial.style||{};return Object.keys(style).forEach((key=>{canvas.style[key]=style[key]})),canvas.width=canvas.width,delete canvas.$chartjs,!0}addEventListener(chart,type,listener){this.removeEventListener(chart,type);const proxies=chart.$proxies||(chart.$proxies={}),handler={attach:createAttachObserver,detach:createDetachObserver,resize:createResizeObserver}[type]||createProxyAndListen;proxies[type]=handler(chart,type,listener)}removeEventListener(chart,type){const proxies=chart.$proxies||(chart.$proxies={}),proxy=proxies[type];proxy&&(({attach:releaseObserver,detach:releaseObserver,resize:releaseObserver}[type]||removeListener)(chart,type,proxy),proxies[type]=void 0)}getDevicePixelRatio(){return window.devicePixelRatio}getMaximumSize(canvas,width,height,aspectRatio){return getMaximumSize(canvas,width,height,aspectRatio)}isAttached(canvas){const container=_getParentNode(canvas);return!(!container||!container.isConnected)}}function _detectPlatform(canvas){return!_isDomSupported()||"undefined"!=typeof OffscreenCanvas&&canvas instanceof OffscreenCanvas?BasicPlatform:DomPlatform}var platforms=Object.freeze({__proto__:null,_detectPlatform:_detectPlatform,BasePlatform:BasePlatform,BasicPlatform:BasicPlatform,DomPlatform:DomPlatform});const interpolators={boolean:(from,to,factor)=>factor>.5?to:from,color(from,to,factor){const c0=color(from||"transparent"),c1=c0.valid&&color(to||"transparent");return c1&&c1.valid?c1.mix(c0,factor).hexString():to},number:(from,to,factor)=>from+(to-from)*factor};class Animation{constructor(cfg,target,prop,to){const currentValue=target[prop];to=resolve([cfg.to,to,currentValue,cfg.from]);const from=resolve([cfg.from,currentValue,to]);this._active=!0,this._fn=cfg.fn||interpolators[cfg.type||typeof from],this._easing=effects[cfg.easing]||effects.linear,this._start=Math.floor(Date.now()+(cfg.delay||0)),this._duration=this._total=Math.floor(cfg.duration),this._loop=!!cfg.loop,this._target=target,this._prop=prop,this._from=from,this._to=to,this._promises=void 0}active(){return this._active}update(cfg,to,date){if(this._active){this._notify(!1);const currentValue=this._target[this._prop],elapsed=date-this._start,remain=this._duration-elapsed;this._start=date,this._duration=Math.floor(Math.max(remain,cfg.duration)),this._total+=elapsed,this._loop=!!cfg.loop,this._to=resolve([cfg.to,to,currentValue,cfg.from]),this._from=resolve([cfg.from,currentValue,to])}}cancel(){this._active&&(this.tick(Date.now()),this._active=!1,this._notify(!1))}tick(date){const elapsed=date-this._start,duration=this._duration,prop=this._prop,from=this._from,loop=this._loop,to=this._to;let factor;if(this._active=from!==to&&(loop||elapsed1?2-factor:factor,factor=this._easing(Math.min(1,Math.max(0,factor))),this._target[prop]=this._fn(from,to,factor))}wait(){const promises=this._promises||(this._promises=[]);return new Promise(((res,rej)=>{promises.push({res:res,rej:rej})}))}_notify(resolved){const method=resolved?"res":"rej",promises=this._promises||[];for(let i=0;i"onProgress"!==name&&"onComplete"!==name&&"fn"!==name}),defaults.set("animations",{colors:{type:"color",properties:["color","borderColor","backgroundColor"]},numbers:{type:"number",properties:["x","y","borderWidth","radius","tension"]}}),defaults.describe("animations",{_fallback:"animation"}),defaults.set("transitions",{active:{animation:{duration:400}},resize:{animation:{duration:0}},show:{animations:{colors:{from:"transparent"},visible:{type:"boolean",duration:0}}},hide:{animations:{colors:{to:"transparent"},visible:{type:"boolean",easing:"linear",fn:v=>0|v}}}});class Animations{constructor(chart,config){this._chart=chart,this._properties=new Map,this.configure(config)}configure(config){if(!isObject(config))return;const animatedProps=this._properties;Object.getOwnPropertyNames(config).forEach((key=>{const cfg=config[key];if(!isObject(cfg))return;const resolved={};for(const option of animationOptions)resolved[option]=cfg[option];(isArray(cfg.properties)&&cfg.properties||[key]).forEach((prop=>{prop!==key&&animatedProps.has(prop)||animatedProps.set(prop,resolved)}))}))}_animateOptions(target,values){const newOptions=values.options,options=function(target,newOptions){if(!newOptions)return;let options=target.options;if(options)return options.$shared&&(target.options=options=Object.assign({},options,{$shared:!1,$animations:{}})),options;target.options=newOptions}(target,newOptions);if(!options)return[];const animations=this._createAnimations(options,newOptions);return newOptions.$shared&&function(animations,properties){const running=[],keys=Object.keys(properties);for(let i=0;i{target.options=newOptions}),(()=>{})),animations}_createAnimations(target,values){const animatedProps=this._properties,animations=[],running=target.$animations||(target.$animations={}),props=Object.keys(values),date=Date.now();let i;for(i=props.length-1;i>=0;--i){const prop=props[i];if("$"===prop.charAt(0))continue;if("options"===prop){animations.push(...this._animateOptions(target,values));continue}const value=values[prop];let animation=running[prop];const cfg=animatedProps.get(prop);if(animation){if(cfg&&animation.active()){animation.update(cfg,value,date);continue}animation.cancel()}cfg&&cfg.duration?(running[prop]=animation=new Animation(cfg,target,prop,value),animations.push(animation)):target[prop]=value}return animations}update(target,values){if(0===this._properties.size)return void Object.assign(target,values);const animations=this._createAnimations(target,values);return animations.length?(animator.add(this._chart,animations),!0):void 0}}function scaleClip(scale,allowedOverflow){const opts=scale&&scale.options||{},reverse=opts.reverse,min=void 0===opts.min?allowedOverflow:0,max=void 0===opts.max?allowedOverflow:0;return{start:reverse?max:min,end:reverse?min:max}}function getSortedDatasetIndices(chart,filterVisible){const keys=[],metasets=chart._getSortedDatasetMetas(filterVisible);let i,ilen;for(i=0,ilen=metasets.length;i3&&void 0!==arguments[3]?arguments[3]:{};const keys=stack.keys,singleMode="single"===options.mode;let i,ilen,datasetIndex,otherValue;if(null!==value){for(i=0,ilen=keys.length;i0||!positive&&value<0)return meta.index}return null}function updateStacks(controller,parsed){const{chart:chart,_cachedMeta:meta}=controller,stacks=chart._stacks||(chart._stacks={}),{iScale:iScale,vScale:vScale,index:datasetIndex}=meta,iAxis=iScale.axis,vAxis=vScale.axis,key=function(indexScale,valueScale,meta){return"".concat(indexScale.id,".").concat(valueScale.id,".").concat(meta.stack||meta.type)}(iScale,vScale,meta),ilen=parsed.length;let stack;for(let i=0;iscales[key].axis===axis)).shift()}function clearStacks(meta,items){const datasetIndex=meta.controller.index,axis=meta.vScale&&meta.vScale.axis;if(axis){items=items||meta._parsed;for(const parsed of items){const stacks=parsed._stacks;if(!stacks||void 0===stacks[axis]||void 0===stacks[axis][datasetIndex])return;delete stacks[axis][datasetIndex]}}}const isDirectUpdateMode=mode=>"reset"===mode||"none"===mode,cloneIfNotShared=(cached,shared)=>shared?cached:Object.assign({},cached);class DatasetController{constructor(chart,datasetIndex){this.chart=chart,this._ctx=chart.ctx,this.index=datasetIndex,this._cachedDataOpts={},this._cachedMeta=this.getMeta(),this._type=this._cachedMeta.type,this.options=void 0,this._parsing=!1,this._data=void 0,this._objectData=void 0,this._sharedOptions=void 0,this._drawStart=void 0,this._drawCount=void 0,this.enableOptionSharing=!1,this.supportsDecimation=!1,this.$context=void 0,this._syncList=[],this.initialize()}initialize(){const meta=this._cachedMeta;this.configure(),this.linkScales(),meta._stacked=isStacked(meta.vScale,meta),this.addElements()}updateIndex(datasetIndex){this.index!==datasetIndex&&clearStacks(this._cachedMeta),this.index=datasetIndex}linkScales(){const chart=this.chart,meta=this._cachedMeta,dataset=this.getDataset(),chooseId=(axis,x,y,r)=>"x"===axis?x:"r"===axis?r:y,xid=meta.xAxisID=valueOrDefault(dataset.xAxisID,getFirstScaleId(chart,"x")),yid=meta.yAxisID=valueOrDefault(dataset.yAxisID,getFirstScaleId(chart,"y")),rid=meta.rAxisID=valueOrDefault(dataset.rAxisID,getFirstScaleId(chart,"r")),indexAxis=meta.indexAxis,iid=meta.iAxisID=chooseId(indexAxis,xid,yid,rid),vid=meta.vAxisID=chooseId(indexAxis,yid,xid,rid);meta.xScale=this.getScaleForId(xid),meta.yScale=this.getScaleForId(yid),meta.rScale=this.getScaleForId(rid),meta.iScale=this.getScaleForId(iid),meta.vScale=this.getScaleForId(vid)}getDataset(){return this.chart.data.datasets[this.index]}getMeta(){return this.chart.getDatasetMeta(this.index)}getScaleForId(scaleID){return this.chart.scales[scaleID]}_getOtherScale(scale){const meta=this._cachedMeta;return scale===meta.iScale?meta.vScale:meta.iScale}reset(){this._update("reset")}_destroy(){const meta=this._cachedMeta;this._data&&unlistenArrayEvents(this._data,this),meta._stacked&&clearStacks(meta)}_dataCheck(){const dataset=this.getDataset(),data=dataset.data||(dataset.data=[]),_data=this._data;if(isObject(data))this._data=function(data){const keys=Object.keys(data),adata=new Array(keys.length);let i,ilen,key;for(i=0,ilen=keys.length;i0&&meta._parsed[start-1];if(!1===this._parsing)meta._parsed=data,meta._sorted=!0,parsed=data;else{parsed=isArray(data[start])?this.parseArrayData(meta,data,start,count):isObject(data[start])?this.parseObjectData(meta,data,start,count):this.parsePrimitiveData(meta,data,start,count);const isNotInOrderComparedToPrev=()=>null===cur[iAxis]||prev&&cur[iAxis]canStack&&!meta.hidden&&meta._stacked&&{keys:getSortedDatasetIndices(chart,!0),values:null})(canStack,meta,this.chart),range={min:Number.POSITIVE_INFINITY,max:Number.NEGATIVE_INFINITY},{min:otherMin,max:otherMax}=function(scale){const{min:min,max:max,minDefined:minDefined,maxDefined:maxDefined}=scale.getUserBounds();return{min:minDefined?min:Number.NEGATIVE_INFINITY,max:maxDefined?max:Number.POSITIVE_INFINITY}}(otherScale);let i,parsed;function _skip(){parsed=_parsed[i];const otherValue=parsed[otherScale.axis];return!isNumberFinite(parsed[scale.axis])||otherMin>otherValue||otherMax=0;--i)if(!_skip()){this.updateRangeFromParsed(range,scale,parsed,stack);break}return range}getAllParsedValues(scale){const parsed=this._cachedMeta._parsed,values=[];let i,ilen,value;for(i=0,ilen=parsed.length;i=0&&index1&&void 0!==arguments[1]?arguments[1]:"default",index=arguments.length>2?arguments[2]:void 0;const active="active"===mode,cache=this._cachedDataOpts,cacheKey=elementType+"-"+mode,cached=cache[cacheKey],sharing=this.enableOptionSharing&&defined(index);if(cached)return cloneIfNotShared(cached,sharing);const config=this.chart.config,scopeKeys=config.datasetElementScopeKeys(this._type,elementType),prefixes=active?["".concat(elementType,"Hover"),"hover",elementType,""]:[elementType,""],scopes=config.getOptionScopes(this.getDataset(),scopeKeys),names=Object.keys(defaults.elements[elementType]),values=config.resolveNamedOptions(scopes,names,(()=>this.getContext(index,active)),prefixes);return values.$shared&&(values.$shared=sharing,cache[cacheKey]=Object.freeze(cloneIfNotShared(values,sharing))),values}_resolveAnimations(index,transition,active){const chart=this.chart,cache=this._cachedDataOpts,cacheKey="animation-".concat(transition),cached=cache[cacheKey];if(cached)return cached;let options;if(!1!==chart.options.animation){const config=this.chart.config,scopeKeys=config.datasetAnimationScopeKeys(this._type,transition),scopes=config.getOptionScopes(this.getDataset(),scopeKeys);options=config.createResolver(scopes,this.getContext(index,active,transition))}const animations=new Animations(chart,options&&options.animations);return options&&options._cacheable&&(cache[cacheKey]=Object.freeze(animations)),animations}getSharedOptions(options){if(options.$shared)return this._sharedOptions||(this._sharedOptions=Object.assign({},options))}includeOptions(mode,sharedOptions){return!sharedOptions||isDirectUpdateMode(mode)||this.chart._animationsDisabled}updateElement(element,index,properties,mode){isDirectUpdateMode(mode)?Object.assign(element,properties):this._resolveAnimations(index,mode).update(element,properties)}updateSharedOptions(sharedOptions,mode,newOptions){sharedOptions&&!isDirectUpdateMode(mode)&&this._resolveAnimations(void 0,mode).update(sharedOptions,newOptions)}_setStyle(element,index,mode,active){element.active=active;const options=this.getStyle(index,active);this._resolveAnimations(index,mode,active).update(element,{options:!active&&this.getSharedOptions(options)||options})}removeHoverStyle(element,datasetIndex,index){this._setStyle(element,index,"active",!1)}setHoverStyle(element,datasetIndex,index){this._setStyle(element,index,"active",!0)}_removeDatasetHoverStyle(){const element=this._cachedMeta.dataset;element&&this._setStyle(element,void 0,"active",!1)}_setDatasetHoverStyle(){const element=this._cachedMeta.dataset;element&&this._setStyle(element,void 0,"active",!0)}_resyncElements(resetNewElements){const data=this._data,elements=this._cachedMeta.data;for(const[method,arg1,arg2]of this._syncList)this[method](arg1,arg2);this._syncList=[];const numMeta=elements.length,numData=data.length,count=Math.min(numData,numMeta);count&&this.parse(0,count),numData>numMeta?this._insertElements(numMeta,numData-numMeta,resetNewElements):numData2&&void 0!==arguments[2])||arguments[2];const meta=this._cachedMeta,data=meta.data,end=start+count;let i;const move=arr=>{for(arr.length+=count,i=arr.length-1;i>=end;i--)arr[i]=arr[i-count]};for(move(data),i=start;i{ret[prop]=anims[prop]&&anims[prop].active()?anims[prop]._to:this[prop]})),ret}}Element.defaults={},Element.defaultRoutes=void 0;const formatters={values:value=>isArray(value)?value:""+value,numeric(tickValue,index,ticks){if(0===tickValue)return"0";const locale=this.chart.options.locale;let notation,delta=tickValue;if(ticks.length>1){const maxTick=Math.max(Math.abs(ticks[0].value),Math.abs(ticks[ticks.length-1].value));(maxTick<1e-4||maxTick>1e15)&&(notation="scientific"),delta=function(tickValue,ticks){let delta=ticks.length>3?ticks[2].value-ticks[1].value:ticks[1].value-ticks[0].value;return Math.abs(delta)>=1&&tickValue!==Math.floor(tickValue)&&(delta=tickValue-Math.floor(tickValue)),delta}(tickValue,ticks)}const logDelta=log10(Math.abs(delta)),numDecimal=Math.max(Math.min(-1*Math.floor(logDelta),20),0),options={notation:notation,minimumFractionDigits:numDecimal,maximumFractionDigits:numDecimal};return Object.assign(options,this.options.ticks.format),formatNumber(tickValue,locale,options)},logarithmic(tickValue,index,ticks){if(0===tickValue)return"0";const remain=tickValue/Math.pow(10,Math.floor(log10(tickValue)));return 1===remain||2===remain||5===remain?formatters.numeric.call(this,tickValue,index,ticks):""}};var Ticks={formatters:formatters};function autoSkip(scale,ticks){const tickOpts=scale.options.ticks,ticksLimit=tickOpts.maxTicksLimit||function(scale){const offset=scale.options.offset,tickLength=scale._tickSize(),maxScale=scale._length/tickLength+(offset?0:1),maxChart=scale._maxLength/tickLength;return Math.floor(Math.min(maxScale,maxChart))}(scale),majorIndices=tickOpts.major.enabled?function(ticks){const result=[];let i,ilen;for(i=0,ilen=ticks.length;iticksLimit)return function(ticks,newTicks,majorIndices,spacing){let i,count=0,next=majorIndices[0];for(spacing=Math.ceil(spacing),i=0;ispacing)return factor}return Math.max(spacing,1)}(majorIndices,ticks,ticksLimit);if(numMajorIndices>0){let i,ilen;const avgMajorSpacing=numMajorIndices>1?Math.round((last-first)/(numMajorIndices-1)):null;for(skip(ticks,newTicks,spacing,isNullOrUndef(avgMajorSpacing)?0:first-avgMajorSpacing,first),i=0,ilen=numMajorIndices-1;ioptions.lineWidth,tickColor:(_ctx,options)=>options.color,offset:!1,borderDash:[],borderDashOffset:0,borderWidth:1},title:{display:!1,text:"",padding:{top:4,bottom:4}},ticks:{minRotation:0,maxRotation:50,mirror:!1,textStrokeWidth:0,textStrokeColor:"",padding:3,display:!0,autoSkip:!0,autoSkipPadding:3,labelOffset:0,callback:Ticks.formatters.values,minor:{},major:{},align:"center",crossAlign:"near",showLabelBackdrop:!1,backdropColor:"rgba(255, 255, 255, 0.75)",backdropPadding:2}}),defaults.route("scale.ticks","color","","color"),defaults.route("scale.grid","color","","borderColor"),defaults.route("scale.grid","borderColor","","borderColor"),defaults.route("scale.title","color","","color"),defaults.describe("scale",{_fallback:!1,_scriptable:name=>!name.startsWith("before")&&!name.startsWith("after")&&"callback"!==name&&"parser"!==name,_indexable:name=>"borderDash"!==name&&"tickBorderDash"!==name}),defaults.describe("scales",{_fallback:"scale"}),defaults.describe("scale.ticks",{_scriptable:name=>"backdropPadding"!==name&&"callback"!==name,_indexable:name=>"backdropPadding"!==name});const offsetFromEdge=(scale,edge,offset)=>"top"===edge||"left"===edge?scale[edge]+offset:scale[edge]-offset;function sample(arr,numItems){const result=[],increment=arr.length/numItems,len=arr.length;let i=0;for(;iend+1e-6)))return lineValue}function getTickMarkLength(options){return options.drawTicks?options.tickLength:0}function getTitleHeight(options,fallback){if(!options.display)return 0;const font=toFont(options.font,fallback),padding=toPadding(options.padding);return(isArray(options.text)?options.text.length:1)*font.lineHeight+padding.height}function titleAlign(align,position,reverse){let ret=_toLeftRightCenter(align);return(reverse&&"right"!==position||!reverse&&"right"===position)&&(ret=(align=>"left"===align?"right":"right"===align?"left":align)(ret)),ret}class Scale extends Element{constructor(cfg){super(),this.id=cfg.id,this.type=cfg.type,this.options=void 0,this.ctx=cfg.ctx,this.chart=cfg.chart,this.top=void 0,this.bottom=void 0,this.left=void 0,this.right=void 0,this.width=void 0,this.height=void 0,this._margins={left:0,right:0,top:0,bottom:0},this.maxWidth=void 0,this.maxHeight=void 0,this.paddingTop=void 0,this.paddingBottom=void 0,this.paddingLeft=void 0,this.paddingRight=void 0,this.axis=void 0,this.labelRotation=void 0,this.min=void 0,this.max=void 0,this._range=void 0,this.ticks=[],this._gridLineItems=null,this._labelItems=null,this._labelSizes=null,this._length=0,this._maxLength=0,this._longestTextCache={},this._startPixel=void 0,this._endPixel=void 0,this._reversePixels=!1,this._userMax=void 0,this._userMin=void 0,this._suggestedMax=void 0,this._suggestedMin=void 0,this._ticksLength=0,this._borderValue=0,this._cache={},this._dataLimitsCached=!1,this.$context=void 0}init(options){this.options=options.setContext(this.getContext()),this.axis=options.axis,this._userMin=this.parse(options.min),this._userMax=this.parse(options.max),this._suggestedMin=this.parse(options.suggestedMin),this._suggestedMax=this.parse(options.suggestedMax)}parse(raw,index){return raw}getUserBounds(){let{_userMin:_userMin,_userMax:_userMax,_suggestedMin:_suggestedMin,_suggestedMax:_suggestedMax}=this;return _userMin=finiteOrDefault(_userMin,Number.POSITIVE_INFINITY),_userMax=finiteOrDefault(_userMax,Number.NEGATIVE_INFINITY),_suggestedMin=finiteOrDefault(_suggestedMin,Number.POSITIVE_INFINITY),_suggestedMax=finiteOrDefault(_suggestedMax,Number.NEGATIVE_INFINITY),{min:finiteOrDefault(_userMin,_suggestedMin),max:finiteOrDefault(_userMax,_suggestedMax),minDefined:isNumberFinite(_userMin),maxDefined:isNumberFinite(_userMax)}}getMinMax(canStack){let range,{min:min,max:max,minDefined:minDefined,maxDefined:maxDefined}=this.getUserBounds();if(minDefined&&maxDefined)return{min:min,max:max};const metas=this.getMatchingVisibleMetas();for(let i=0,ilen=metas.length;imax?max:min,max=minDefined&&min>max?min:max,{min:finiteOrDefault(min,finiteOrDefault(max,min)),max:finiteOrDefault(max,finiteOrDefault(min,max))}}getPadding(){return{left:this.paddingLeft||0,top:this.paddingTop||0,right:this.paddingRight||0,bottom:this.paddingBottom||0}}getTicks(){return this.ticks}getLabels(){const data=this.chart.data;return this.options.labels||(this.isHorizontal()?data.xLabels:data.yLabels)||data.labels||[]}beforeLayout(){this._cache={},this._dataLimitsCached=!1}beforeUpdate(){callback(this.options.beforeUpdate,[this])}update(maxWidth,maxHeight,margins){const{beginAtZero:beginAtZero,grace:grace,ticks:tickOpts}=this.options,sampleSize=tickOpts.sampleSize;this.beforeUpdate(),this.maxWidth=maxWidth,this.maxHeight=maxHeight,this._margins=margins=Object.assign({left:0,right:0,top:0,bottom:0},margins),this.ticks=null,this._labelSizes=null,this._gridLineItems=null,this._labelItems=null,this.beforeSetDimensions(),this.setDimensions(),this.afterSetDimensions(),this._maxLength=this.isHorizontal()?this.width+margins.left+margins.right:this.height+margins.top+margins.bottom,this._dataLimitsCached||(this.beforeDataLimits(),this.determineDataLimits(),this.afterDataLimits(),this._range=_addGrace(this,grace,beginAtZero),this._dataLimitsCached=!0),this.beforeBuildTicks(),this.ticks=this.buildTicks()||[],this.afterBuildTicks();const samplingEnabled=sampleSize=maxRotation||numTicks<=1||!this.isHorizontal())return void(this.labelRotation=minRotation);const labelSizes=this._getLabelSizes(),maxLabelWidth=labelSizes.widest.width,maxLabelHeight=labelSizes.highest.height,maxWidth=_limitValue(this.chart.width-maxLabelWidth,0,this.maxWidth);tickWidth=options.offset?this.maxWidth/numTicks:maxWidth/(numTicks-1),maxLabelWidth+6>tickWidth&&(tickWidth=maxWidth/(numTicks-(options.offset?.5:1)),maxHeight=this.maxHeight-getTickMarkLength(options.grid)-tickOpts.padding-getTitleHeight(options.title,this.chart.options.font),maxLabelDiagonal=Math.sqrt(maxLabelWidth*maxLabelWidth+maxLabelHeight*maxLabelHeight),labelRotation=toDegrees(Math.min(Math.asin(_limitValue((labelSizes.highest.height+6)/tickWidth,-1,1)),Math.asin(_limitValue(maxHeight/maxLabelDiagonal,-1,1))-Math.asin(_limitValue(maxLabelHeight/maxLabelDiagonal,-1,1)))),labelRotation=Math.max(minRotation,Math.min(maxRotation,labelRotation))),this.labelRotation=labelRotation}afterCalculateLabelRotation(){callback(this.options.afterCalculateLabelRotation,[this])}afterAutoSkip(){}beforeFit(){callback(this.options.beforeFit,[this])}fit(){const minSize={width:0,height:0},{chart:chart,options:{ticks:tickOpts,title:titleOpts,grid:gridOpts}}=this,display=this._isVisible(),isHorizontal=this.isHorizontal();if(display){const titleHeight=getTitleHeight(titleOpts,chart.options.font);if(isHorizontal?(minSize.width=this.maxWidth,minSize.height=getTickMarkLength(gridOpts)+titleHeight):(minSize.height=this.maxHeight,minSize.width=getTickMarkLength(gridOpts)+titleHeight),tickOpts.display&&this.ticks.length){const{first:first,last:last,widest:widest,highest:highest}=this._getLabelSizes(),tickPadding=2*tickOpts.padding,angleRadians=toRadians(this.labelRotation),cos=Math.cos(angleRadians),sin=Math.sin(angleRadians);if(isHorizontal){const labelHeight=tickOpts.mirror?0:sin*widest.width+cos*highest.height;minSize.height=Math.min(this.maxHeight,minSize.height+labelHeight+tickPadding)}else{const labelWidth=tickOpts.mirror?0:cos*widest.width+sin*highest.height;minSize.width=Math.min(this.maxWidth,minSize.width+labelWidth+tickPadding)}this._calculatePadding(first,last,sin,cos)}}this._handleMargins(),isHorizontal?(this.width=this._length=chart.width-this._margins.left-this._margins.right,this.height=minSize.height):(this.width=minSize.width,this.height=this._length=chart.height-this._margins.top-this._margins.bottom)}_calculatePadding(first,last,sin,cos){const{ticks:{align:align,padding:padding},position:position}=this.options,isRotated=0!==this.labelRotation,labelsBelowTicks="top"!==position&&"x"===this.axis;if(this.isHorizontal()){const offsetLeft=this.getPixelForTick(0)-this.left,offsetRight=this.right-this.getPixelForTick(this.ticks.length-1);let paddingLeft=0,paddingRight=0;isRotated?labelsBelowTicks?(paddingLeft=cos*first.width,paddingRight=sin*last.height):(paddingLeft=sin*first.height,paddingRight=cos*last.width):"start"===align?paddingRight=last.width:"end"===align?paddingLeft=first.width:"inner"!==align&&(paddingLeft=first.width/2,paddingRight=last.width/2),this.paddingLeft=Math.max((paddingLeft-offsetLeft+padding)*this.width/(this.width-offsetLeft),0),this.paddingRight=Math.max((paddingRight-offsetRight+padding)*this.width/(this.width-offsetRight),0)}else{let paddingTop=last.height/2,paddingBottom=first.height/2;"start"===align?(paddingTop=0,paddingBottom=first.height):"end"===align&&(paddingTop=last.height,paddingBottom=0),this.paddingTop=paddingTop+padding,this.paddingBottom=paddingBottom+padding}}_handleMargins(){this._margins&&(this._margins.left=Math.max(this.paddingLeft,this._margins.left),this._margins.top=Math.max(this.paddingTop,this._margins.top),this._margins.right=Math.max(this.paddingRight,this._margins.right),this._margins.bottom=Math.max(this.paddingBottom,this._margins.bottom))}afterFit(){callback(this.options.afterFit,[this])}isHorizontal(){const{axis:axis,position:position}=this.options;return"top"===position||"bottom"===position||"x"===axis}isFullSize(){return this.options.fullSize}_convertTicksToLabels(ticks){let i,ilen;for(this.beforeTickToLabelConversion(),this.generateTickLabels(ticks),i=0,ilen=ticks.length;i{const gc=cache.gc,gcLen=gc.length/2;let i;if(gcLen>length){for(i=0;i({width:widths[idx]||0,height:heights[idx]||0});return{first:valueAt(0),last:valueAt(length-1),widest:valueAt(widest),highest:valueAt(highest),widths:widths,heights:heights}}getLabelForValue(value){return value}getPixelForValue(value,index){return NaN}getValueForPixel(pixel){}getPixelForTick(index){const ticks=this.ticks;return index<0||index>ticks.length-1?null:this.getPixelForValue(ticks[index].value)}getPixelForDecimal(decimal){this._reversePixels&&(decimal=1-decimal);const pixel=this._startPixel+decimal*this._length;return _int16Range(this._alignToPixels?_alignPixel(this.chart,pixel,0):pixel)}getDecimalForPixel(pixel){const decimal=(pixel-this._startPixel)/this._length;return this._reversePixels?1-decimal:decimal}getBasePixel(){return this.getPixelForValue(this.getBaseValue())}getBaseValue(){const{min:min,max:max}=this;return min<0&&max<0?max:min>0&&max>0?min:0}getContext(index){const ticks=this.ticks||[];if(index>=0&&indexw*sin?w/cos:h/sin:h*sin0}_computeGridLineItems(chartArea){const axis=this.axis,chart=this.chart,options=this.options,{grid:grid,position:position}=options,offset=grid.offset,isHorizontal=this.isHorizontal(),ticksLength=this.ticks.length+(offset?1:0),tl=getTickMarkLength(grid),items=[],borderOpts=grid.setContext(this.getContext()),axisWidth=borderOpts.drawBorder?borderOpts.borderWidth:0,axisHalfWidth=axisWidth/2,alignBorderValue=function(pixel){return _alignPixel(chart,pixel,axisWidth)};let borderValue,i,lineValue,alignedLineValue,tx1,ty1,tx2,ty2,x1,y1,x2,y2;if("top"===position)borderValue=alignBorderValue(this.bottom),ty1=this.bottom-tl,ty2=borderValue-axisHalfWidth,y1=alignBorderValue(chartArea.top)+axisHalfWidth,y2=chartArea.bottom;else if("bottom"===position)borderValue=alignBorderValue(this.top),y1=chartArea.top,y2=alignBorderValue(chartArea.bottom)-axisHalfWidth,ty1=borderValue+axisHalfWidth,ty2=this.top+tl;else if("left"===position)borderValue=alignBorderValue(this.right),tx1=this.right-tl,tx2=borderValue-axisHalfWidth,x1=alignBorderValue(chartArea.left)+axisHalfWidth,x2=chartArea.right;else if("right"===position)borderValue=alignBorderValue(this.left),x1=chartArea.left,x2=alignBorderValue(chartArea.right)-axisHalfWidth,tx1=borderValue+axisHalfWidth,tx2=this.left+tl;else if("x"===axis){if("center"===position)borderValue=alignBorderValue((chartArea.top+chartArea.bottom)/2+.5);else if(isObject(position)){const positionAxisID=Object.keys(position)[0],value=position[positionAxisID];borderValue=alignBorderValue(this.chart.scales[positionAxisID].getPixelForValue(value))}y1=chartArea.top,y2=chartArea.bottom,ty1=borderValue+axisHalfWidth,ty2=ty1+tl}else if("y"===axis){if("center"===position)borderValue=alignBorderValue((chartArea.left+chartArea.right)/2);else if(isObject(position)){const positionAxisID=Object.keys(position)[0],value=position[positionAxisID];borderValue=alignBorderValue(this.chart.scales[positionAxisID].getPixelForValue(value))}tx1=borderValue-axisHalfWidth,tx2=tx1-tl,x1=chartArea.left,x2=chartArea.right}const limit=valueOrDefault(options.ticks.maxTicksLimit,ticksLength),step=Math.max(1,Math.ceil(ticksLength/limit));for(i=0;it.value===value));return index>=0?grid.setContext(this.getContext(index)).lineWidth:0}drawGrid(chartArea){const grid=this.options.grid,ctx=this.ctx,items=this._gridLineItems||(this._gridLineItems=this._computeGridLineItems(chartArea));let i,ilen;const drawLine=(p1,p2,style)=>{style.width&&style.color&&(ctx.save(),ctx.lineWidth=style.width,ctx.strokeStyle=style.color,ctx.setLineDash(style.borderDash||[]),ctx.lineDashOffset=style.borderDashOffset,ctx.beginPath(),ctx.moveTo(p1.x,p1.y),ctx.lineTo(p2.x,p2.y),ctx.stroke(),ctx.restore())};if(grid.display)for(i=0,ilen=items.length;i{this.drawBackground(),this.drawGrid(chartArea),this.drawTitle()}},{z:gz+1,draw:()=>{this.drawBorder()}},{z:tz,draw:chartArea=>{this.drawLabels(chartArea)}}]:[{z:tz,draw:chartArea=>{this.draw(chartArea)}}]}getMatchingVisibleMetas(type){const metas=this.chart.getSortedVisibleDatasetMetas(),axisID=this.axis+"AxisID",result=[];let i,ilen;for(i=0,ilen=metas.length;i{const propertyParts=property.split("."),sourceName=propertyParts.pop(),sourceScope=[scope].concat(propertyParts).join("."),parts=routes[property].split("."),targetName=parts.pop(),targetScope=parts.join(".");defaults.route(sourceScope,sourceName,targetScope,targetName)}))}(scope,item.defaultRoutes),item.descriptors&&defaults.describe(scope,item.descriptors)}(item,scope,parentScope),this.override&&defaults.override(item.id,item.overrides)),scope}get(id){return this.items[id]}unregister(item){const items=this.items,id=item.id,scope=this.scope;id in items&&delete items[id],scope&&id in defaults[scope]&&(delete defaults[scope][id],this.override&&delete overrides[id])}}var registry=new class{constructor(){this.controllers=new TypedRegistry(DatasetController,"datasets",!0),this.elements=new TypedRegistry(Element,"elements"),this.plugins=new TypedRegistry(Object,"plugins"),this.scales=new TypedRegistry(Scale,"scales"),this._typedRegistries=[this.controllers,this.scales,this.elements]}add(){for(var _len4=arguments.length,args=new Array(_len4),_key4=0;_key4<_len4;_key4++)args[_key4]=arguments[_key4];this._each("register",args)}remove(){for(var _len5=arguments.length,args=new Array(_len5),_key5=0;_key5<_len5;_key5++)args[_key5]=arguments[_key5];this._each("unregister",args)}addControllers(){for(var _len6=arguments.length,args=new Array(_len6),_key6=0;_key6<_len6;_key6++)args[_key6]=arguments[_key6];this._each("register",args,this.controllers)}addElements(){for(var _len7=arguments.length,args=new Array(_len7),_key7=0;_key7<_len7;_key7++)args[_key7]=arguments[_key7];this._each("register",args,this.elements)}addPlugins(){for(var _len8=arguments.length,args=new Array(_len8),_key8=0;_key8<_len8;_key8++)args[_key8]=arguments[_key8];this._each("register",args,this.plugins)}addScales(){for(var _len9=arguments.length,args=new Array(_len9),_key9=0;_key9<_len9;_key9++)args[_key9]=arguments[_key9];this._each("register",args,this.scales)}getController(id){return this._get(id,this.controllers,"controller")}getElement(id){return this._get(id,this.elements,"element")}getPlugin(id){return this._get(id,this.plugins,"plugin")}getScale(id){return this._get(id,this.scales,"scale")}removeControllers(){for(var _len10=arguments.length,args=new Array(_len10),_key10=0;_key10<_len10;_key10++)args[_key10]=arguments[_key10];this._each("unregister",args,this.controllers)}removeElements(){for(var _len11=arguments.length,args=new Array(_len11),_key11=0;_key11<_len11;_key11++)args[_key11]=arguments[_key11];this._each("unregister",args,this.elements)}removePlugins(){for(var _len12=arguments.length,args=new Array(_len12),_key12=0;_key12<_len12;_key12++)args[_key12]=arguments[_key12];this._each("unregister",args,this.plugins)}removeScales(){for(var _len13=arguments.length,args=new Array(_len13),_key13=0;_key13<_len13;_key13++)args[_key13]=arguments[_key13];this._each("unregister",args,this.scales)}_each(method,args,typedRegistry){[...args].forEach((arg=>{const reg=typedRegistry||this._getRegistryForType(arg);typedRegistry||reg.isForType(arg)||reg===this.plugins&&arg.id?this._exec(method,reg,arg):each(arg,(item=>{const itemReg=typedRegistry||this._getRegistryForType(item);this._exec(method,itemReg,item)}))}))}_exec(method,registry,component){const camelMethod=_capitalize(method);callback(component["before"+camelMethod],[],component),registry[method](component),callback(component["after"+camelMethod],[],component)}_getRegistryForType(type){for(let i=0;ia.filter((x=>!b.some((y=>x.plugin.id===y.plugin.id))));this._notify(diff(previousDescriptors,descriptors),chart,"stop"),this._notify(diff(descriptors,previousDescriptors),chart,"start")}}function getOpts(options,all){return all||!1!==options?!0===options?{}:options:null}function pluginOpts(config,plugin,opts,context){const keys=config.pluginScopeKeys(plugin),scopes=config.getOptionScopes(opts,keys);return config.createResolver(scopes,context,[""],{scriptable:!1,indexable:!1,allKeys:!0})}function getIndexAxis(type,options){const datasetDefaults=defaults.datasets[type]||{};return((options.datasets||{})[type]||{}).indexAxis||options.indexAxis||datasetDefaults.indexAxis||"x"}function determineAxis(id,scaleOptions){return"x"===id||"y"===id?id:scaleOptions.axis||("top"===(position=scaleOptions.position)||"bottom"===position?"x":"left"===position||"right"===position?"y":void 0)||id.charAt(0).toLowerCase();var position}function initOptions(config){const options=config.options||(config.options={});options.plugins=valueOrDefault(options.plugins,{}),options.scales=function(config,options){const chartDefaults=overrides[config.type]||{scales:{}},configScales=options.scales||{},chartIndexAxis=getIndexAxis(config.type,options),firstIDs=Object.create(null),scales=Object.create(null);return Object.keys(configScales).forEach((id=>{const scaleConf=configScales[id];if(!isObject(scaleConf))return console.error("Invalid scale configuration for scale: ".concat(id));if(scaleConf._proxy)return console.warn("Ignoring resolver passed as options for scale: ".concat(id));const axis=determineAxis(id,scaleConf),defaultId=function(axis,indexAxis){return axis===indexAxis?"_index_":"_value_"}(axis,chartIndexAxis),defaultScaleOptions=chartDefaults.scales||{};firstIDs[axis]=firstIDs[axis]||id,scales[id]=mergeIf(Object.create(null),[{axis:axis},scaleConf,defaultScaleOptions[axis],defaultScaleOptions[defaultId]])})),config.data.datasets.forEach((dataset=>{const type=dataset.type||config.type,indexAxis=dataset.indexAxis||getIndexAxis(type,options),defaultScaleOptions=(overrides[type]||{}).scales||{};Object.keys(defaultScaleOptions).forEach((defaultID=>{const axis=function(id,indexAxis){let axis=id;return"_index_"===id?axis=indexAxis:"_value_"===id&&(axis="x"===indexAxis?"y":"x"),axis}(defaultID,indexAxis),id=dataset[axis+"AxisID"]||firstIDs[axis]||axis;scales[id]=scales[id]||Object.create(null),mergeIf(scales[id],[{axis:axis},configScales[id],defaultScaleOptions[defaultID]])}))})),Object.keys(scales).forEach((key=>{const scale=scales[key];mergeIf(scale,[defaults.scales[scale.type],defaults.scale])})),scales}(config,options)}function initData(data){return(data=data||{}).datasets=data.datasets||[],data.labels=data.labels||[],data}const keyCache=new Map,keysCached=new Set;function cachedKeys(cacheKey,generate){let keys=keyCache.get(cacheKey);return keys||(keys=generate(),keyCache.set(cacheKey,keys),keysCached.add(keys)),keys}const addIfFound=(set,obj,key)=>{const opts=resolveObjectKey(obj,key);void 0!==opts&&set.add(opts)};class Config{constructor(config){this._config=function(config){return(config=config||{}).data=initData(config.data),initOptions(config),config}(config),this._scopeCache=new Map,this._resolverCache=new Map}get platform(){return this._config.platform}get type(){return this._config.type}set type(type){this._config.type=type}get data(){return this._config.data}set data(data){this._config.data=initData(data)}get options(){return this._config.options}set options(options){this._config.options=options}get plugins(){return this._config.plugins}update(){const config=this._config;this.clearCache(),initOptions(config)}clearCache(){this._scopeCache.clear(),this._resolverCache.clear()}datasetScopeKeys(datasetType){return cachedKeys(datasetType,(()=>[["datasets.".concat(datasetType),""]]))}datasetAnimationScopeKeys(datasetType,transition){return cachedKeys("".concat(datasetType,".transition.").concat(transition),(()=>[["datasets.".concat(datasetType,".transitions.").concat(transition),"transitions.".concat(transition)],["datasets.".concat(datasetType),""]]))}datasetElementScopeKeys(datasetType,elementType){return cachedKeys("".concat(datasetType,"-").concat(elementType),(()=>[["datasets.".concat(datasetType,".elements.").concat(elementType),"datasets.".concat(datasetType),"elements.".concat(elementType),""]]))}pluginScopeKeys(plugin){const id=plugin.id,type=this.type;return cachedKeys("".concat(type,"-plugin-").concat(id),(()=>[["plugins.".concat(id),...plugin.additionalOptionScopes||[]]]))}_cachedScopes(mainScope,resetCache){const _scopeCache=this._scopeCache;let cache=_scopeCache.get(mainScope);return cache&&!resetCache||(cache=new Map,_scopeCache.set(mainScope,cache)),cache}getOptionScopes(mainScope,keyLists,resetCache){const{options:options,type:type}=this,cache=this._cachedScopes(mainScope,resetCache),cached=cache.get(keyLists);if(cached)return cached;const scopes=new Set;keyLists.forEach((keys=>{mainScope&&(scopes.add(mainScope),keys.forEach((key=>addIfFound(scopes,mainScope,key)))),keys.forEach((key=>addIfFound(scopes,options,key))),keys.forEach((key=>addIfFound(scopes,overrides[type]||{},key))),keys.forEach((key=>addIfFound(scopes,defaults,key))),keys.forEach((key=>addIfFound(scopes,descriptors,key)))}));const array=Array.from(scopes);return 0===array.length&&array.push(Object.create(null)),keysCached.has(keyLists)&&cache.set(keyLists,array),array}chartOptionScopes(){const{options:options,type:type}=this;return[options,overrides[type]||{},defaults.datasets[type]||{},{type:type},defaults,descriptors]}resolveNamedOptions(scopes,names,context){let prefixes=arguments.length>3&&void 0!==arguments[3]?arguments[3]:[""];const result={$shared:!0},{resolver:resolver,subPrefixes:subPrefixes}=getResolver(this._resolverCache,scopes,prefixes);let options=resolver;(function(proxy,names){const{isScriptable:isScriptable,isIndexable:isIndexable}=_descriptors(proxy);for(const prop of names){const scriptable=isScriptable(prop),indexable=isIndexable(prop),value=(indexable||scriptable)&&proxy[prop];if(scriptable&&(isFunction(value)||hasFunction(value))||indexable&&isArray(value))return!0}return!1})(resolver,names)&&(result.$shared=!1,options=_attachContext(resolver,context=isFunction(context)?context():context,this.createResolver(scopes,context,subPrefixes)));for(const prop of names)result[prop]=options[prop];return result}createResolver(scopes,context){let prefixes=arguments.length>2&&void 0!==arguments[2]?arguments[2]:[""],descriptorDefaults=arguments.length>3?arguments[3]:void 0;const{resolver:resolver}=getResolver(this._resolverCache,scopes,prefixes);return isObject(context)?_attachContext(resolver,context,void 0,descriptorDefaults):resolver}}function getResolver(resolverCache,scopes,prefixes){let cache=resolverCache.get(scopes);cache||(cache=new Map,resolverCache.set(scopes,cache));const cacheKey=prefixes.join();let cached=cache.get(cacheKey);return cached||(cached={resolver:_createResolver(scopes,prefixes),subPrefixes:prefixes.filter((p=>!p.toLowerCase().includes("hover")))},cache.set(cacheKey,cached)),cached}const hasFunction=value=>isObject(value)&&Object.getOwnPropertyNames(value).reduce(((acc,key)=>acc||isFunction(value[key])),!1),KNOWN_POSITIONS=["top","bottom","left","right","chartArea"];function positionIsHorizontal(position,axis){return"top"===position||"bottom"===position||-1===KNOWN_POSITIONS.indexOf(position)&&"x"===axis}function compare2Level(l1,l2){return function(a,b){return a[l1]===b[l1]?a[l2]-b[l2]:a[l1]-b[l1]}}function onAnimationsComplete(context){const chart=context.chart,animationOptions=chart.options.animation;chart.notifyPlugins("afterRender"),callback(animationOptions&&animationOptions.onComplete,[context],chart)}function onAnimationProgress(context){const chart=context.chart,animationOptions=chart.options.animation;callback(animationOptions&&animationOptions.onProgress,[context],chart)}function getCanvas(item){return _isDomSupported()&&"string"==typeof item?item=document.getElementById(item):item&&item.length&&(item=item[0]),item&&item.canvas&&(item=item.canvas),item}const instances={},getChart=key=>{const canvas=getCanvas(key);return Object.values(instances).filter((c=>c.canvas===canvas)).pop()};function moveNumericKeys(obj,start,move){const keys=Object.keys(obj);for(const key of keys){const intKey=+key;if(intKey>=start){const value=obj[key];delete obj[key],(move>0||intKey>start)&&(obj[intKey+move]=value)}}}class Chart{constructor(item,userConfig){const config=this.config=new Config(userConfig),initialCanvas=getCanvas(item),existingChart=getChart(initialCanvas);if(existingChart)throw new Error("Canvas is already in use. Chart with ID '"+existingChart.id+"' must be destroyed before the canvas can be reused.");const options=config.createResolver(config.chartOptionScopes(),this.getContext());this.platform=new(config.platform||_detectPlatform(initialCanvas)),this.platform.updateConfig(config);const context=this.platform.acquireContext(initialCanvas,options.aspectRatio),canvas=context&&context.canvas,height=canvas&&canvas.height,width=canvas&&canvas.width;this.id=uid(),this.ctx=context,this.canvas=canvas,this.width=width,this.height=height,this._options=options,this._aspectRatio=this.aspectRatio,this._layers=[],this._metasets=[],this._stacks=void 0,this.boxes=[],this.currentDevicePixelRatio=void 0,this.chartArea=void 0,this._active=[],this._lastEvent=void 0,this._listeners={},this._responsiveListeners=void 0,this._sortedMetasets=[],this.scales={},this._plugins=new PluginService,this.$proxies={},this._hiddenIndices={},this.attached=!1,this._animationsDisabled=void 0,this.$context=void 0,this._doResize=debounce((mode=>this.update(mode)),options.resizeDelay||0),this._dataChanges=[],instances[this.id]=this,context&&canvas?(animator.listen(this,"complete",onAnimationsComplete),animator.listen(this,"progress",onAnimationProgress),this._initialize(),this.attached&&this.update()):console.error("Failed to create chart: can't acquire context from the given item")}get aspectRatio(){const{options:{aspectRatio:aspectRatio,maintainAspectRatio:maintainAspectRatio},width:width,height:height,_aspectRatio:_aspectRatio}=this;return isNullOrUndef(aspectRatio)?maintainAspectRatio&&_aspectRatio?_aspectRatio:height?width/height:null:aspectRatio}get data(){return this.config.data}set data(data){this.config.data=data}get options(){return this._options}set options(options){this.config.options=options}_initialize(){return this.notifyPlugins("beforeInit"),this.options.responsive?this.resize():retinaScale(this,this.options.devicePixelRatio),this.bindEvents(),this.notifyPlugins("afterInit"),this}clear(){return clearCanvas(this.canvas,this.ctx),this}stop(){return animator.stop(this),this}resize(width,height){animator.running(this)?this._resizeBeforeDraw={width:width,height:height}:this._resize(width,height)}_resize(width,height){const options=this.options,canvas=this.canvas,aspectRatio=options.maintainAspectRatio&&this.aspectRatio,newSize=this.platform.getMaximumSize(canvas,width,height,aspectRatio),newRatio=options.devicePixelRatio||this.platform.getDevicePixelRatio(),mode=this.width?"resize":"attach";this.width=newSize.width,this.height=newSize.height,this._aspectRatio=this.aspectRatio,retinaScale(this,newRatio,!0)&&(this.notifyPlugins("resize",{size:newSize}),callback(options.onResize,[this,newSize],this),this.attached&&this._doResize(mode)&&this.render())}ensureScalesHaveIDs(){each(this.options.scales||{},((axisOptions,axisID)=>{axisOptions.id=axisID}))}buildOrUpdateScales(){const options=this.options,scaleOpts=options.scales,scales=this.scales,updated=Object.keys(scales).reduce(((obj,id)=>(obj[id]=!1,obj)),{});let items=[];scaleOpts&&(items=items.concat(Object.keys(scaleOpts).map((id=>{const scaleOptions=scaleOpts[id],axis=determineAxis(id,scaleOptions),isRadial="r"===axis,isHorizontal="x"===axis;return{options:scaleOptions,dposition:isRadial?"chartArea":isHorizontal?"bottom":"left",dtype:isRadial?"radialLinear":isHorizontal?"category":"linear"}})))),each(items,(item=>{const scaleOptions=item.options,id=scaleOptions.id,axis=determineAxis(id,scaleOptions),scaleType=valueOrDefault(scaleOptions.type,item.dtype);void 0!==scaleOptions.position&&positionIsHorizontal(scaleOptions.position,axis)===positionIsHorizontal(item.dposition)||(scaleOptions.position=item.dposition),updated[id]=!0;let scale=null;id in scales&&scales[id].type===scaleType?scale=scales[id]:(scale=new(registry.getScale(scaleType))({id:id,type:scaleType,ctx:this.ctx,chart:this}),scales[scale.id]=scale),scale.init(scaleOptions,options)})),each(updated,((hasUpdated,id)=>{hasUpdated||delete scales[id]})),each(scales,(scale=>{layouts.configure(this,scale,scale.options),layouts.addBox(this,scale)}))}_updateMetasets(){const metasets=this._metasets,numData=this.data.datasets.length,numMeta=metasets.length;if(metasets.sort(((a,b)=>a.index-b.index)),numMeta>numData){for(let i=numData;idatasets.length&&delete this._stacks,metasets.forEach(((meta,index)=>{0===datasets.filter((x=>x===meta._dataset)).length&&this._destroyDatasetMeta(index)}))}buildOrUpdateControllers(){const newControllers=[],datasets=this.data.datasets;let i,ilen;for(this._removeUnreferencedMetasets(),i=0,ilen=datasets.length;i{this.getDatasetMeta(datasetIndex).controller.reset()}),this)}reset(){this._resetElements(),this.notifyPlugins("reset")}update(mode){const config=this.config;config.update();const options=this._options=config.createResolver(config.chartOptionScopes(),this.getContext()),animsDisabled=this._animationsDisabled=!options.animation;if(this._updateScales(),this._checkEventBindings(),this._updateHiddenIndices(),this._plugins.invalidate(),!1===this.notifyPlugins("beforeUpdate",{mode:mode,cancelable:!0}))return;const newControllers=this.buildOrUpdateControllers();this.notifyPlugins("beforeElementsUpdate");let minPadding=0;for(let i=0,ilen=this.data.datasets.length;i{controller.reset()})),this._updateDatasets(mode),this.notifyPlugins("afterUpdate",{mode:mode}),this._layers.sort(compare2Level("z","_idx"));const{_active:_active,_lastEvent:_lastEvent}=this;_lastEvent?this._eventHandler(_lastEvent,!0):_active.length&&this._updateHoverStyles(_active,_active,!0),this.render()}_updateScales(){each(this.scales,(scale=>{layouts.removeBox(this,scale)})),this.ensureScalesHaveIDs(),this.buildOrUpdateScales()}_checkEventBindings(){const options=this.options,existingEvents=new Set(Object.keys(this._listeners)),newEvents=new Set(options.events);setsEqual(existingEvents,newEvents)&&!!this._responsiveListeners===options.responsive||(this.unbindEvents(),this.bindEvents())}_updateHiddenIndices(){const{_hiddenIndices:_hiddenIndices}=this,changes=this._getUniformDataChanges()||[];for(const{method:method,start:start,count:count}of changes)moveNumericKeys(_hiddenIndices,start,"_removeElements"===method?-count:count)}_getUniformDataChanges(){const _dataChanges=this._dataChanges;if(!_dataChanges||!_dataChanges.length)return;this._dataChanges=[];const datasetCount=this.data.datasets.length,makeSet=idx=>new Set(_dataChanges.filter((c=>c[0]===idx)).map(((c,i)=>i+","+c.splice(1).join(",")))),changeSet=makeSet(0);for(let i=1;ic.split(","))).map((a=>({method:a[1],start:+a[2],count:+a[3]})))}_updateLayout(minPadding){if(!1===this.notifyPlugins("beforeLayout",{cancelable:!0}))return;layouts.update(this,this.width,this.height,minPadding);const area=this.chartArea,noArea=area.width<=0||area.height<=0;this._layers=[],each(this.boxes,(box=>{noArea&&"chartArea"===box.position||(box.configure&&box.configure(),this._layers.push(...box._layers()))}),this),this._layers.forEach(((item,index)=>{item._idx=index})),this.notifyPlugins("afterLayout")}_updateDatasets(mode){if(!1!==this.notifyPlugins("beforeDatasetsUpdate",{mode:mode,cancelable:!0})){for(let i=0,ilen=this.data.datasets.length;i=0;--i)this._drawDataset(metasets[i]);this.notifyPlugins("afterDatasetsDraw")}_drawDataset(meta){const ctx=this.ctx,clip=meta._clip,useClip=!clip.disabled,area=this.chartArea,args={meta:meta,index:meta.index,cancelable:!0};!1!==this.notifyPlugins("beforeDatasetDraw",args)&&(useClip&&clipArea(ctx,{left:!1===clip.left?0:area.left-clip.left,right:!1===clip.right?this.width:area.right+clip.right,top:!1===clip.top?0:area.top-clip.top,bottom:!1===clip.bottom?this.height:area.bottom+clip.bottom}),meta.controller.draw(),useClip&&unclipArea(ctx),args.cancelable=!1,this.notifyPlugins("afterDatasetDraw",args))}isPointInArea(point){return _isPointInArea(point,this.chartArea,this._minPadding)}getElementsAtEventForMode(e,mode,options,useFinalPosition){const method=Interaction.modes[mode];return"function"==typeof method?method(this,e,options,useFinalPosition):[]}getDatasetMeta(datasetIndex){const dataset=this.data.datasets[datasetIndex],metasets=this._metasets;let meta=metasets.filter((x=>x&&x._dataset===dataset)).pop();return meta||(meta={type:null,data:[],dataset:null,controller:null,hidden:null,xAxisID:null,yAxisID:null,order:dataset&&dataset.order||0,index:datasetIndex,_dataset:dataset,_parsed:[],_sorted:!1},metasets.push(meta)),meta}getContext(){return this.$context||(this.$context=createContext(null,{chart:this,type:"chart"}))}getVisibleDatasetCount(){return this.getSortedVisibleDatasetMetas().length}isDatasetVisible(datasetIndex){const dataset=this.data.datasets[datasetIndex];if(!dataset)return!1;const meta=this.getDatasetMeta(datasetIndex);return"boolean"==typeof meta.hidden?!meta.hidden:!dataset.hidden}setDatasetVisibility(datasetIndex,visible){this.getDatasetMeta(datasetIndex).hidden=!visible}toggleDataVisibility(index){this._hiddenIndices[index]=!this._hiddenIndices[index]}getDataVisibility(index){return!this._hiddenIndices[index]}_updateVisibility(datasetIndex,dataIndex,visible){const mode=visible?"show":"hide",meta=this.getDatasetMeta(datasetIndex),anims=meta.controller._resolveAnimations(void 0,mode);defined(dataIndex)?(meta.data[dataIndex].hidden=!visible,this.update()):(this.setDatasetVisibility(datasetIndex,visible),anims.update(meta,{visible:visible}),this.update((ctx=>ctx.datasetIndex===datasetIndex?mode:void 0)))}hide(datasetIndex,dataIndex){this._updateVisibility(datasetIndex,dataIndex,!1)}show(datasetIndex,dataIndex){this._updateVisibility(datasetIndex,dataIndex,!0)}_destroyDatasetMeta(datasetIndex){const meta=this._metasets[datasetIndex];meta&&meta.controller&&meta.controller._destroy(),delete this._metasets[datasetIndex]}_stop(){let i,ilen;for(this.stop(),animator.remove(this),i=0,ilen=this.data.datasets.length;i{platform.addEventListener(this,type,listener),listeners[type]=listener},listener=(e,x,y)=>{e.offsetX=x,e.offsetY=y,this._eventHandler(e)};each(this.options.events,(type=>_add(type,listener)))}bindResponsiveEvents(){this._responsiveListeners||(this._responsiveListeners={});const listeners=this._responsiveListeners,platform=this.platform,_add=(type,listener)=>{platform.addEventListener(this,type,listener),listeners[type]=listener},_remove=(type,listener)=>{listeners[type]&&(platform.removeEventListener(this,type,listener),delete listeners[type])},listener=(width,height)=>{this.canvas&&this.resize(width,height)};let detached;const attached=()=>{_remove("attach",attached),this.attached=!0,this.resize(),_add("resize",listener),_add("detach",detached)};detached=()=>{this.attached=!1,_remove("resize",listener),this._stop(),this._resize(0,0),_add("attach",attached)},platform.isAttached(this.canvas)?attached():detached()}unbindEvents(){each(this._listeners,((listener,type)=>{this.platform.removeEventListener(this,type,listener)})),this._listeners={},each(this._responsiveListeners,((listener,type)=>{this.platform.removeEventListener(this,type,listener)})),this._responsiveListeners=void 0}updateHoverStyle(items,mode,enabled){const prefix=enabled?"set":"remove";let meta,item,i,ilen;for("dataset"===mode&&(meta=this.getDatasetMeta(items[0].datasetIndex),meta.controller["_"+prefix+"DatasetHoverStyle"]()),i=0,ilen=items.length;i{let{datasetIndex:datasetIndex,index:index}=_ref2;const meta=this.getDatasetMeta(datasetIndex);if(!meta)throw new Error("No dataset found at index "+datasetIndex);return{datasetIndex:datasetIndex,element:meta.data[index],index:index}}));!_elementsEqual(active,lastActive)&&(this._active=active,this._lastEvent=null,this._updateHoverStyles(active,lastActive))}notifyPlugins(hook,args,filter){return this._plugins.notify(this,hook,args,filter)}_updateHoverStyles(active,lastActive,replay){const hoverOptions=this.options.hover,diff=(a,b)=>a.filter((x=>!b.some((y=>x.datasetIndex===y.datasetIndex&&x.index===y.index)))),deactivated=diff(lastActive,active),activated=replay?active:diff(active,lastActive);deactivated.length&&this.updateHoverStyle(deactivated,hoverOptions.mode,!1),activated.length&&hoverOptions.mode&&this.updateHoverStyle(activated,hoverOptions.mode,!0)}_eventHandler(e,replay){const args={event:e,replay:replay,cancelable:!0,inChartArea:this.isPointInArea(e)},eventFilter=plugin=>(plugin.options.events||this.options.events).includes(e.native.type);if(!1===this.notifyPlugins("beforeEvent",args,eventFilter))return;const changed=this._handleEvent(e,replay,args.inChartArea);return args.cancelable=!1,this.notifyPlugins("afterEvent",args,eventFilter),(changed||args.changed)&&this.render(),this}_handleEvent(e,replay,inChartArea){const{_active:lastActive=[],options:options}=this,useFinalPosition=replay,active=this._getActiveElements(e,lastActive,inChartArea,useFinalPosition),isClick=_isClickEvent(e),lastEvent=function(e,lastEvent,inChartArea,isClick){return inChartArea&&"mouseout"!==e.type?isClick?lastEvent:e:null}(e,this._lastEvent,inChartArea,isClick);inChartArea&&(this._lastEvent=null,callback(options.onHover,[e,active,this],this),isClick&&callback(options.onClick,[e,active,this],this));const changed=!_elementsEqual(active,lastActive);return(changed||replay)&&(this._active=active,this._updateHoverStyles(active,lastActive,replay)),this._lastEvent=lastEvent,changed}_getActiveElements(e,lastActive,inChartArea,useFinalPosition){if("mouseout"===e.type)return[];if(!inChartArea)return lastActive;const hoverOptions=this.options.hover;return this.getElementsAtEventForMode(e,hoverOptions.mode,hoverOptions,useFinalPosition)}}const invalidatePlugins=()=>each(Chart.instances,(chart=>chart._plugins.invalidate()));function abstract(){throw new Error("This method is not implemented: Check that a complete date adapter is provided.")}Object.defineProperties(Chart,{defaults:{enumerable:!0,value:defaults},instances:{enumerable:!0,value:instances},overrides:{enumerable:!0,value:overrides},registry:{enumerable:!0,value:registry},version:{enumerable:!0,value:"3.8.0"},getChart:{enumerable:!0,value:getChart},register:{enumerable:!0,value:function(){registry.add(...arguments),invalidatePlugins()}},unregister:{enumerable:!0,value:function(){registry.remove(...arguments),invalidatePlugins()}}});class DateAdapter{constructor(options){this.options=options||{}}formats(){return abstract()}parse(value,format){return abstract()}format(timestamp,format){return abstract()}add(timestamp,amount,unit){return abstract()}diff(a,b,unit){return abstract()}startOf(timestamp,unit,weekday){return abstract()}endOf(timestamp,unit){return abstract()}}DateAdapter.override=function(members){Object.assign(DateAdapter.prototype,members)};var _adapters={_date:DateAdapter};function computeMinSampleSize(meta){const scale=meta.iScale,values=function(scale,type){if(!scale._cache.$bar){const visibleMetas=scale.getMatchingVisibleMetas(type);let values=[];for(let i=0,ilen=visibleMetas.length;ia-b)))}return scale._cache.$bar}(scale,meta.type);let i,ilen,curr,prev,min=scale._length;const updateMinAndPrev=()=>{32767!==curr&&-32768!==curr&&(defined(prev)&&(min=Math.min(min,Math.abs(curr-prev)||min)),prev=curr)};for(i=0,ilen=values.length;iMath.abs(max)&&(barStart=max,barEnd=min),item[vScale.axis]=barEnd,item._custom={barStart:barStart,barEnd:barEnd,start:startValue,end:endValue,min:min,max:max}}(entry,item,vScale,i):item[vScale.axis]=vScale.parse(entry,i),item}function parseArrayOrPrimitive(meta,data,start,count){const iScale=meta.iScale,vScale=meta.vScale,labels=iScale.getLabels(),singleScale=iScale===vScale,parsed=[];let i,ilen,item,entry;for(i=start,ilen=start+count;iproperties.x,start="left",end="right"):(reverse=properties.base=actualBase?1:-1)}(size,vScale,actualBase)*minBarLength,value===actualBase&&(base-=size/2);const startPixel=vScale.getPixelForDecimal(0),endPixel=vScale.getPixelForDecimal(1),min=Math.min(startPixel,endPixel),max=Math.max(startPixel,endPixel);base=Math.max(Math.min(base,max),min),head=base+size}if(base===vScale.getPixelForValue(actualBase)){const halfGrid=sign(size)*vScale.getLineWidthForValue(actualBase)/2;base+=halfGrid,size-=halfGrid}return{size:size,base:base,head:head,center:head+size/2}}_calculateBarIndexPixels(index,ruler){const scale=ruler.scale,options=this.options,skipNull=options.skipNull,maxBarThickness=valueOrDefault(options.maxBarThickness,1/0);let center,size;if(ruler.grouped){const stackCount=skipNull?this._getStackCount(index):ruler.stackCount,range="flex"===options.barThickness?function(index,ruler,options,stackCount){const pixels=ruler.pixels,curr=pixels[index];let prev=index>0?pixels[index-1]:null,next=index=0;--i)max=Math.max(max,data[i].size(this.resolveDataElementOptions(i))/2);return max>0&&max}getLabelAndValue(index){const meta=this._cachedMeta,{xScale:xScale,yScale:yScale}=meta,parsed=this.getParsed(index),x=xScale.getLabelForValue(parsed.x),y=yScale.getLabelForValue(parsed.y),r=parsed._custom;return{label:meta.label,value:"("+x+", "+y+(r?", "+r:"")+")"}}update(mode){const points=this._cachedMeta.data;this.updateElements(points,0,points.length,mode)}updateElements(points,start,count,mode){const reset="reset"===mode,{iScale:iScale,vScale:vScale}=this._cachedMeta,firstOpts=this.resolveDataElementOptions(start,mode),sharedOptions=this.getSharedOptions(firstOpts),includeOptions=this.includeOptions(mode,sharedOptions),iAxis=iScale.axis,vAxis=vScale.axis;for(let i=start;i""}}}};class DoughnutController extends DatasetController{constructor(chart,datasetIndex){super(chart,datasetIndex),this.enableOptionSharing=!0,this.innerRadius=void 0,this.outerRadius=void 0,this.offsetX=void 0,this.offsetY=void 0}linkScales(){}parse(start,count){const data=this.getDataset().data,meta=this._cachedMeta;if(!1===this._parsing)meta._parsed=data;else{let i,ilen,getter=i=>+data[i];if(isObject(data[start])){const{key:key="value"}=this._parsing;getter=i=>+resolveObjectKey(data[i],key)}for(i=start,ilen=start+count;i_angleBetween(angle,startAngle,endAngle,!0)?1:Math.max(a,a*cutout,b,b*cutout),calcMin=(angle,a,b)=>_angleBetween(angle,startAngle,endAngle,!0)?-1:Math.min(a,a*cutout,b,b*cutout),maxX=calcMax(0,startX,endX),maxY=calcMax(HALF_PI,startY,endY),minX=calcMin(PI,startX,endX),minY=calcMin(PI+HALF_PI,startY,endY);ratioX=(maxX-minX)/2,ratioY=(maxY-minY)/2,offsetX=-(maxX+minX)/2,offsetY=-(maxY+minY)/2}return{ratioX:ratioX,ratioY:ratioY,offsetX:offsetX,offsetY:offsetY}}(rotation,circumference,cutout),maxWidth=(chartArea.width-spacing)/ratioX,maxHeight=(chartArea.height-spacing)/ratioY,maxRadius=Math.max(Math.min(maxWidth,maxHeight)/2,0),outerRadius=toDimension(this.options.radius,maxRadius),radiusLength=(outerRadius-Math.max(outerRadius*cutout,0))/this._getVisibleDatasetWeightTotal();this.offsetX=offsetX*outerRadius,this.offsetY=offsetY*outerRadius,meta.total=this.calculateTotal(),this.outerRadius=outerRadius-radiusLength*this._getRingWeightOffset(this.index),this.innerRadius=Math.max(this.outerRadius-radiusLength*chartWeight,0),this.updateElements(arcs,0,arcs.length,mode)}_circumference(i,reset){const opts=this.options,meta=this._cachedMeta,circumference=this._getCircumference();return reset&&opts.animation.animateRotate||!this.chart.getDataVisibility(i)||null===meta._parsed[i]||meta.data[i].hidden?0:this.calculateCircumference(meta._parsed[i]*circumference/TAU)}updateElements(arcs,start,count,mode){const reset="reset"===mode,chart=this.chart,chartArea=chart.chartArea,animationOpts=chart.options.animation,centerX=(chartArea.left+chartArea.right)/2,centerY=(chartArea.top+chartArea.bottom)/2,animateScale=reset&&animationOpts.animateScale,innerRadius=animateScale?0:this.innerRadius,outerRadius=animateScale?0:this.outerRadius,firstOpts=this.resolveDataElementOptions(start,mode),sharedOptions=this.getSharedOptions(firstOpts),includeOptions=this.includeOptions(mode,sharedOptions);let i,startAngle=this._getRotation();for(i=0;i0&&!isNaN(value)?TAU*(Math.abs(value)/total):0}getLabelAndValue(index){const meta=this._cachedMeta,chart=this.chart,labels=chart.data.labels||[],value=formatNumber(meta._parsed[index],chart.options.locale);return{label:labels[index]||"",value:value}}getMaxBorderWidth(arcs){let max=0;const chart=this.chart;let i,ilen,meta,controller,options;if(!arcs)for(i=0,ilen=chart.data.datasets.length;i"spacing"!==name,_indexable:name=>"spacing"!==name},DoughnutController.overrides={aspectRatio:1,plugins:{legend:{labels:{generateLabels(chart){const data=chart.data;if(data.labels.length&&data.datasets.length){const{labels:{pointStyle:pointStyle}}=chart.legend.options;return data.labels.map(((label,i)=>{const style=chart.getDatasetMeta(0).controller.getStyle(i);return{text:label,fillStyle:style.backgroundColor,strokeStyle:style.borderColor,lineWidth:style.borderWidth,pointStyle:pointStyle,hidden:!chart.getDataVisibility(i),index:i}}))}return[]}},onClick(e,legendItem,legend){legend.chart.toggleDataVisibility(legendItem.index),legend.chart.update()}},tooltip:{callbacks:{title:()=>"",label(tooltipItem){let dataLabel=tooltipItem.label;const value=": "+tooltipItem.formattedValue;return isArray(dataLabel)?(dataLabel=dataLabel.slice(),dataLabel[0]+=value):dataLabel+=value,dataLabel}}}}};class LineController extends DatasetController{initialize(){this.enableOptionSharing=!0,this.supportsDecimation=!0,super.initialize()}update(mode){const meta=this._cachedMeta,{dataset:line,data:points=[],_dataset:_dataset}=meta,animationsDisabled=this.chart._animationsDisabled;let{start:start,count:count}=function(meta,points,animationsDisabled){const pointCount=points.length;let start=0,count=pointCount;if(meta._sorted){const{iScale:iScale,_parsed:_parsed}=meta,axis=iScale.axis,{min:min,max:max,minDefined:minDefined,maxDefined:maxDefined}=iScale.getUserBounds();minDefined&&(start=_limitValue(Math.min(_lookupByKey(_parsed,iScale.axis,min).lo,animationsDisabled?pointCount:_lookupByKey(points,axis,iScale.getPixelForValue(min)).lo),0,pointCount-1)),count=maxDefined?_limitValue(Math.max(_lookupByKey(_parsed,iScale.axis,max).hi+1,animationsDisabled?0:_lookupByKey(points,axis,iScale.getPixelForValue(max)).hi+1),start,pointCount)-start:pointCount-start}return{start:start,count:count}}(meta,points,animationsDisabled);this._drawStart=start,this._drawCount=count,function(meta){const{xScale:xScale,yScale:yScale,_scaleRanges:_scaleRanges}=meta,newRanges={xmin:xScale.min,xmax:xScale.max,ymin:yScale.min,ymax:yScale.max};if(!_scaleRanges)return meta._scaleRanges=newRanges,!0;const changed=_scaleRanges.xmin!==xScale.min||_scaleRanges.xmax!==xScale.max||_scaleRanges.ymin!==yScale.min||_scaleRanges.ymax!==yScale.max;return Object.assign(_scaleRanges,newRanges),changed}(meta)&&(start=0,count=points.length),line._chart=this.chart,line._datasetIndex=this.index,line._decimated=!!_dataset._decimated,line.points=points;const options=this.resolveDatasetElementOptions(mode);this.options.showLine||(options.borderWidth=0),options.segment=this.options.segment,this.updateElement(line,void 0,{animated:!animationsDisabled,options:options},mode),this.updateElements(points,start,count,mode)}updateElements(points,start,count,mode){const reset="reset"===mode,{iScale:iScale,vScale:vScale,_stacked:_stacked,_dataset:_dataset}=this._cachedMeta,firstOpts=this.resolveDataElementOptions(start,mode),sharedOptions=this.getSharedOptions(firstOpts),includeOptions=this.includeOptions(mode,sharedOptions),iAxis=iScale.axis,vAxis=vScale.axis,{spanGaps:spanGaps,segment:segment}=this.options,maxGapLength=isNumber(spanGaps)?spanGaps:Number.POSITIVE_INFINITY,directUpdate=this.chart._animationsDisabled||reset||"none"===mode;let prevParsed=start>0&&this.getParsed(start-1);for(let i=start;i0&&Math.abs(parsed[iAxis]-prevParsed[iAxis])>maxGapLength,segment&&(properties.parsed=parsed,properties.raw=_dataset.data[i]),includeOptions&&(properties.options=sharedOptions||this.resolveDataElementOptions(i,point.active?"active":mode)),directUpdate||this.updateElement(point,i,properties,mode),prevParsed=parsed}this.updateSharedOptions(sharedOptions,mode,firstOpts)}getMaxOverflow(){const meta=this._cachedMeta,dataset=meta.dataset,border=dataset.options&&dataset.options.borderWidth||0,data=meta.data||[];if(!data.length)return border;const firstPoint=data[0].size(this.resolveDataElementOptions(0)),lastPoint=data[data.length-1].size(this.resolveDataElementOptions(data.length-1));return Math.max(border,firstPoint,lastPoint)/2}draw(){const meta=this._cachedMeta;meta.dataset.updateControlPoints(this.chart.chartArea,meta.iScale.axis),super.draw()}}LineController.id="line",LineController.defaults={datasetElementType:"line",dataElementType:"point",showLine:!0,spanGaps:!1},LineController.overrides={scales:{_index_:{type:"category"},_value_:{type:"linear"}}};class PolarAreaController extends DatasetController{constructor(chart,datasetIndex){super(chart,datasetIndex),this.innerRadius=void 0,this.outerRadius=void 0}getLabelAndValue(index){const meta=this._cachedMeta,chart=this.chart,labels=chart.data.labels||[],value=formatNumber(meta._parsed[index].r,chart.options.locale);return{label:labels[index]||"",value:value}}parseObjectData(meta,data,start,count){return _parseObjectDataRadialScale.bind(this)(meta,data,start,count)}update(mode){const arcs=this._cachedMeta.data;this._updateRadius(),this.updateElements(arcs,0,arcs.length,mode)}getMinMax(){const meta=this._cachedMeta,range={min:Number.POSITIVE_INFINITY,max:Number.NEGATIVE_INFINITY};return meta.data.forEach(((element,index)=>{const parsed=this.getParsed(index).r;!isNaN(parsed)&&this.chart.getDataVisibility(index)&&(parsedrange.max&&(range.max=parsed))})),range}_updateRadius(){const chart=this.chart,chartArea=chart.chartArea,opts=chart.options,minSize=Math.min(chartArea.right-chartArea.left,chartArea.bottom-chartArea.top),outerRadius=Math.max(minSize/2,0),radiusLength=(outerRadius-Math.max(opts.cutoutPercentage?outerRadius/100*opts.cutoutPercentage:1,0))/chart.getVisibleDatasetCount();this.outerRadius=outerRadius-radiusLength*this.index,this.innerRadius=this.outerRadius-radiusLength}updateElements(arcs,start,count,mode){const reset="reset"===mode,chart=this.chart,animationOpts=chart.options.animation,scale=this._cachedMeta.rScale,centerX=scale.xCenter,centerY=scale.yCenter,datasetStartAngle=scale.getIndexAngle(0)-.5*PI;let i,angle=datasetStartAngle;const defaultAngle=360/this.countVisibleElements();for(i=0;i{!isNaN(this.getParsed(index).r)&&this.chart.getDataVisibility(index)&&count++})),count}_computeAngle(index,mode,defaultAngle){return this.chart.getDataVisibility(index)?toRadians(this.resolveDataElementOptions(index,mode).angle||defaultAngle):0}}PolarAreaController.id="polarArea",PolarAreaController.defaults={dataElementType:"arc",animation:{animateRotate:!0,animateScale:!0},animations:{numbers:{type:"number",properties:["x","y","startAngle","endAngle","innerRadius","outerRadius"]}},indexAxis:"r",startAngle:0},PolarAreaController.overrides={aspectRatio:1,plugins:{legend:{labels:{generateLabels(chart){const data=chart.data;if(data.labels.length&&data.datasets.length){const{labels:{pointStyle:pointStyle}}=chart.legend.options;return data.labels.map(((label,i)=>{const style=chart.getDatasetMeta(0).controller.getStyle(i);return{text:label,fillStyle:style.backgroundColor,strokeStyle:style.borderColor,lineWidth:style.borderWidth,pointStyle:pointStyle,hidden:!chart.getDataVisibility(i),index:i}}))}return[]}},onClick(e,legendItem,legend){legend.chart.toggleDataVisibility(legendItem.index),legend.chart.update()}},tooltip:{callbacks:{title:()=>"",label:context=>context.chart.data.labels[context.dataIndex]+": "+context.formattedValue}}},scales:{r:{type:"radialLinear",angleLines:{display:!1},beginAtZero:!0,grid:{circular:!0},pointLabels:{display:!1},startAngle:0}}};class PieController extends DoughnutController{}PieController.id="pie",PieController.defaults={cutout:0,rotation:0,circumference:360,radius:"100%"};class RadarController extends DatasetController{getLabelAndValue(index){const vScale=this._cachedMeta.vScale,parsed=this.getParsed(index);return{label:vScale.getLabels()[index],value:""+vScale.getLabelForValue(parsed[vScale.axis])}}parseObjectData(meta,data,start,count){return _parseObjectDataRadialScale.bind(this)(meta,data,start,count)}update(mode){const meta=this._cachedMeta,line=meta.dataset,points=meta.data||[],labels=meta.iScale.getLabels();if(line.points=points,"resize"!==mode){const options=this.resolveDatasetElementOptions(mode);this.options.showLine||(options.borderWidth=0);const properties={_loop:!0,_fullLoop:labels.length===points.length,options:options};this.updateElement(line,void 0,properties,mode)}this.updateElements(points,0,points.length,mode)}updateElements(points,start,count,mode){const scale=this._cachedMeta.rScale,reset="reset"===mode;for(let i=start;i"",label:item=>"("+item.label+", "+item.formattedValue+")"}}},scales:{x:{type:"linear"},y:{type:"linear"}}};var controllers=Object.freeze({__proto__:null,BarController:BarController,BubbleController:BubbleController,DoughnutController:DoughnutController,LineController:LineController,PolarAreaController:PolarAreaController,PieController:PieController,RadarController:RadarController,ScatterController:ScatterController});function clipArc(ctx,element,endAngle){const{startAngle:startAngle,pixelMargin:pixelMargin,x:x,y:y,outerRadius:outerRadius,innerRadius:innerRadius}=element;let angleMargin=pixelMargin/outerRadius;ctx.beginPath(),ctx.arc(x,y,outerRadius,startAngle-angleMargin,endAngle+angleMargin),innerRadius>pixelMargin?(angleMargin=pixelMargin/innerRadius,ctx.arc(x,y,innerRadius,endAngle+angleMargin,startAngle-angleMargin,!0)):ctx.arc(x,y,pixelMargin,endAngle+HALF_PI,startAngle-HALF_PI),ctx.closePath(),ctx.clip()}function parseBorderRadius$1(arc,innerRadius,outerRadius,angleDelta){const o=_readValueToProps(arc.options.borderRadius,["outerStart","outerEnd","innerStart","innerEnd"]),halfThickness=(outerRadius-innerRadius)/2,innerLimit=Math.min(halfThickness,angleDelta*innerRadius/2),computeOuterLimit=val=>{const outerArcLimit=(outerRadius-Math.min(halfThickness,val))*angleDelta/2;return _limitValue(val,0,Math.min(halfThickness,outerArcLimit))};return{outerStart:computeOuterLimit(o.outerStart),outerEnd:computeOuterLimit(o.outerEnd),innerStart:_limitValue(o.innerStart,0,innerLimit),innerEnd:_limitValue(o.innerEnd,0,innerLimit)}}function rThetaToXY(r,theta,x,y){return{x:x+r*Math.cos(theta),y:y+r*Math.sin(theta)}}function pathArc(ctx,element,offset,spacing,end){const{x:x,y:y,startAngle:start,pixelMargin:pixelMargin,innerRadius:innerR}=element,outerRadius=Math.max(element.outerRadius+spacing+offset-pixelMargin,0),innerRadius=innerR>0?innerR+spacing+offset+pixelMargin:0;let spacingOffset=0;const alpha=end-start;if(spacing){const avNogSpacingRadius=((innerR>0?innerR-spacing:0)+(outerRadius>0?outerRadius-spacing:0))/2;spacingOffset=(alpha-(0!==avNogSpacingRadius?alpha*avNogSpacingRadius/(avNogSpacingRadius+spacing):alpha))/2}const angleOffset=(alpha-Math.max(.001,alpha*outerRadius-offset/PI)/outerRadius)/2,startAngle=start+angleOffset+spacingOffset,endAngle=end-angleOffset-spacingOffset,{outerStart:outerStart,outerEnd:outerEnd,innerStart:innerStart,innerEnd:innerEnd}=parseBorderRadius$1(element,innerRadius,outerRadius,endAngle-startAngle),outerStartAdjustedRadius=outerRadius-outerStart,outerEndAdjustedRadius=outerRadius-outerEnd,outerStartAdjustedAngle=startAngle+outerStart/outerStartAdjustedRadius,outerEndAdjustedAngle=endAngle-outerEnd/outerEndAdjustedRadius,innerStartAdjustedRadius=innerRadius+innerStart,innerEndAdjustedRadius=innerRadius+innerEnd,innerStartAdjustedAngle=startAngle+innerStart/innerStartAdjustedRadius,innerEndAdjustedAngle=endAngle-innerEnd/innerEndAdjustedRadius;if(ctx.beginPath(),ctx.arc(x,y,outerRadius,outerStartAdjustedAngle,outerEndAdjustedAngle),outerEnd>0){const pCenter=rThetaToXY(outerEndAdjustedRadius,outerEndAdjustedAngle,x,y);ctx.arc(pCenter.x,pCenter.y,outerEnd,outerEndAdjustedAngle,endAngle+HALF_PI)}const p4=rThetaToXY(innerEndAdjustedRadius,endAngle,x,y);if(ctx.lineTo(p4.x,p4.y),innerEnd>0){const pCenter=rThetaToXY(innerEndAdjustedRadius,innerEndAdjustedAngle,x,y);ctx.arc(pCenter.x,pCenter.y,innerEnd,endAngle+HALF_PI,innerEndAdjustedAngle+Math.PI)}if(ctx.arc(x,y,innerRadius,endAngle-innerEnd/innerRadius,startAngle+innerStart/innerRadius,!0),innerStart>0){const pCenter=rThetaToXY(innerStartAdjustedRadius,innerStartAdjustedAngle,x,y);ctx.arc(pCenter.x,pCenter.y,innerStart,innerStartAdjustedAngle+Math.PI,startAngle-HALF_PI)}const p8=rThetaToXY(outerStartAdjustedRadius,startAngle,x,y);if(ctx.lineTo(p8.x,p8.y),outerStart>0){const pCenter=rThetaToXY(outerStartAdjustedRadius,outerStartAdjustedAngle,x,y);ctx.arc(pCenter.x,pCenter.y,outerStart,startAngle-HALF_PI,outerStartAdjustedAngle)}ctx.closePath()}function drawBorder(ctx,element,offset,spacing,endAngle){const{options:options}=element,{borderWidth:borderWidth,borderJoinStyle:borderJoinStyle}=options,inner="inner"===options.borderAlign;borderWidth&&(inner?(ctx.lineWidth=2*borderWidth,ctx.lineJoin=borderJoinStyle||"round"):(ctx.lineWidth=borderWidth,ctx.lineJoin=borderJoinStyle||"bevel"),element.fullCircles&&function(ctx,element,inner){const{x:x,y:y,startAngle:startAngle,pixelMargin:pixelMargin,fullCircles:fullCircles}=element,outerRadius=Math.max(element.outerRadius-pixelMargin,0),innerRadius=element.innerRadius+pixelMargin;let i;for(inner&&clipArc(ctx,element,startAngle+TAU),ctx.beginPath(),ctx.arc(x,y,innerRadius,startAngle+TAU,startAngle,!0),i=0;i=TAU||_angleBetween(angle,startAngle,endAngle),withinRadius=_isBetween(distance,innerRadius+rAdjust,outerRadius+rAdjust);return betweenAngles&&withinRadius}getCenterPoint(useFinalPosition){const{x:x,y:y,startAngle:startAngle,endAngle:endAngle,innerRadius:innerRadius,outerRadius:outerRadius}=this.getProps(["x","y","startAngle","endAngle","innerRadius","outerRadius","circumference"],useFinalPosition),{offset:offset,spacing:spacing}=this.options,halfAngle=(startAngle+endAngle)/2,halfRadius=(innerRadius+outerRadius+spacing+offset)/2;return{x:x+Math.cos(halfAngle)*halfRadius,y:y+Math.sin(halfAngle)*halfRadius}}tooltipPosition(useFinalPosition){return this.getCenterPoint(useFinalPosition)}draw(ctx){const{options:options,circumference:circumference}=this,offset=(options.offset||0)/2,spacing=(options.spacing||0)/2;if(this.pixelMargin="inner"===options.borderAlign?.33:0,this.fullCircles=circumference>TAU?Math.floor(circumference/TAU):0,0===circumference||this.innerRadius<0||this.outerRadius<0)return;ctx.save();let radiusOffset=0;if(offset){radiusOffset=offset/2;const halfAngle=(this.startAngle+this.endAngle)/2;ctx.translate(Math.cos(halfAngle)*radiusOffset,Math.sin(halfAngle)*radiusOffset),this.circumference>=PI&&(radiusOffset=offset)}ctx.fillStyle=options.backgroundColor,ctx.strokeStyle=options.borderColor;const endAngle=function(ctx,element,offset,spacing){const{fullCircles:fullCircles,startAngle:startAngle,circumference:circumference}=element;let endAngle=element.endAngle;if(fullCircles){pathArc(ctx,element,offset,spacing,startAngle+TAU);for(let i=0;i2&&void 0!==arguments[2]?arguments[2]:options;ctx.lineCap=valueOrDefault(style.borderCapStyle,options.borderCapStyle),ctx.setLineDash(valueOrDefault(style.borderDash,options.borderDash)),ctx.lineDashOffset=valueOrDefault(style.borderDashOffset,options.borderDashOffset),ctx.lineJoin=valueOrDefault(style.borderJoinStyle,options.borderJoinStyle),ctx.lineWidth=valueOrDefault(style.borderWidth,options.borderWidth),ctx.strokeStyle=valueOrDefault(style.borderColor,options.borderColor)}function lineTo(ctx,previous,target){ctx.lineTo(target.x,target.y)}function pathVars(points,segment){let params=arguments.length>2&&void 0!==arguments[2]?arguments[2]:{};const count=points.length,{start:paramsStart=0,end:paramsEnd=count-1}=params,{start:segmentStart,end:segmentEnd}=segment,start=Math.max(paramsStart,segmentStart),end=Math.min(paramsEnd,segmentEnd),outside=paramsStartsegmentEnd&¶msEnd>segmentEnd;return{count:count,start:start,loop:segment.loop,ilen:end(start+(reverse?ilen-index:index))%count,drawX=()=>{minY!==maxY&&(ctx.lineTo(avgX,maxY),ctx.lineTo(avgX,minY),ctx.lineTo(avgX,lastY))};for(move&&(point=points[pointIndex(0)],ctx.moveTo(point.x,point.y)),i=0;i<=ilen;++i){if(point=points[pointIndex(i)],point.skip)continue;const x=point.x,y=point.y,truncX=0|x;truncX===prevX?(ymaxY&&(maxY=y),avgX=(countX*avgX+x)/++countX):(drawX(),ctx.lineTo(x,y),prevX=truncX,countX=0,minY=maxY=y),lastY=y}drawX()}function _getSegmentMethod(line){const opts=line.options,borderDash=opts.borderDash&&opts.borderDash.length;return line._decimated||line._loop||opts.tension||"monotone"===opts.cubicInterpolationMode||opts.stepped||borderDash?pathSegment:fastPathSegment}ArcElement.id="arc",ArcElement.defaults={borderAlign:"center",borderColor:"#fff",borderJoinStyle:void 0,borderRadius:0,borderWidth:2,offset:0,spacing:0,angle:void 0},ArcElement.defaultRoutes={backgroundColor:"backgroundColor"};const usePath2D="function"==typeof Path2D;function draw(ctx,line,start,count){usePath2D&&!line.options.segment?function(ctx,line,start,count){let path=line._path;path||(path=line._path=new Path2D,line.path(path,start,count)&&path.closePath()),setStyle(ctx,line.options),ctx.stroke(path)}(ctx,line,start,count):function(ctx,line,start,count){const{segments:segments,options:options}=line,segmentMethod=_getSegmentMethod(line);for(const segment of segments)setStyle(ctx,options,segment.style),ctx.beginPath(),segmentMethod(ctx,line,segment,{start:start,end:start+count-1})&&ctx.closePath(),ctx.stroke()}(ctx,line,start,count)}class LineElement extends Element{constructor(cfg){super(),this.animated=!0,this.options=void 0,this._chart=void 0,this._loop=void 0,this._fullLoop=void 0,this._path=void 0,this._points=void 0,this._segments=void 0,this._decimated=!1,this._pointsUpdated=!1,this._datasetIndex=void 0,cfg&&Object.assign(this,cfg)}updateControlPoints(chartArea,indexAxis){const options=this.options;if((options.tension||"monotone"===options.cubicInterpolationMode)&&!options.stepped&&!this._pointsUpdated){const loop=options.spanGaps?this._loop:this._fullLoop;_updateBezierControlPoints(this._points,options,chartArea,loop,indexAxis),this._pointsUpdated=!0}}set points(points){this._points=points,delete this._segments,delete this._path,this._pointsUpdated=!1}get points(){return this._points}get segments(){return this._segments||(this._segments=_computeSegments(this,this.options.segment))}first(){const segments=this.segments,points=this.points;return segments.length&&points[segments[0].start]}last(){const segments=this.segments,points=this.points,count=segments.length;return count&&points[segments[count-1].end]}interpolate(point,property){const options=this.options,value=point[property],points=this.points,segments=_boundSegments(this,{property:property,start:value,end:value});if(!segments.length)return;const result=[],_interpolate=function(options){return options.stepped?_steppedInterpolation:options.tension||"monotone"===options.cubicInterpolationMode?_bezierInterpolation:_pointInLine}(options);let i,ilen;for(i=0,ilen=segments.length;i"borderDash"!==name&&"fill"!==name};class PointElement extends Element{constructor(cfg){super(),this.options=void 0,this.parsed=void 0,this.skip=void 0,this.stop=void 0,cfg&&Object.assign(this,cfg)}inRange(mouseX,mouseY,useFinalPosition){const options=this.options,{x:x,y:y}=this.getProps(["x","y"],useFinalPosition);return Math.pow(mouseX-x,2)+Math.pow(mouseY-y,2)2&&void 0!==arguments[2]?arguments[2]:{};const x=rect.x!==refRect.x?-amount:0,y=rect.y!==refRect.y?-amount:0,w=(rect.x+rect.w!==refRect.x+refRect.w?amount:0)-x,h=(rect.y+rect.h!==refRect.y+refRect.h?amount:0)-y;return{x:rect.x+x,y:rect.y+y,w:rect.w+w,h:rect.h+h,radius:rect.radius}}PointElement.id="point",PointElement.defaults={borderWidth:1,hitRadius:1,hoverBorderWidth:1,hoverRadius:4,pointStyle:"circle",radius:3,rotation:0},PointElement.defaultRoutes={backgroundColor:"backgroundColor",borderColor:"borderColor"};class BarElement extends Element{constructor(cfg){super(),this.options=void 0,this.horizontal=void 0,this.base=void 0,this.width=void 0,this.height=void 0,this.inflateAmount=void 0,cfg&&Object.assign(this,cfg)}draw(ctx){const{inflateAmount:inflateAmount,options:{borderColor:borderColor,backgroundColor:backgroundColor}}=this,{inner:inner,outer:outer}=boundingRects(this),addRectPath=(radius=outer.radius).topLeft||radius.topRight||radius.bottomLeft||radius.bottomRight?addRoundedRectPath:addNormalRectPath;var radius;ctx.save(),outer.w===inner.w&&outer.h===inner.h||(ctx.beginPath(),addRectPath(ctx,inflateRect(outer,inflateAmount,inner)),ctx.clip(),addRectPath(ctx,inflateRect(inner,-inflateAmount,outer)),ctx.fillStyle=borderColor,ctx.fill("evenodd")),ctx.beginPath(),addRectPath(ctx,inflateRect(inner,inflateAmount)),ctx.fillStyle=backgroundColor,ctx.fill(),ctx.restore()}inRange(mouseX,mouseY,useFinalPosition){return inRange(this,mouseX,mouseY,useFinalPosition)}inXRange(mouseX,useFinalPosition){return inRange(this,mouseX,null,useFinalPosition)}inYRange(mouseY,useFinalPosition){return inRange(this,null,mouseY,useFinalPosition)}getCenterPoint(useFinalPosition){const{x:x,y:y,base:base,horizontal:horizontal}=this.getProps(["x","y","base","horizontal"],useFinalPosition);return{x:horizontal?(x+base)/2:x,y:horizontal?y:(y+base)/2}}getRange(axis){return"x"===axis?this.width/2:this.height/2}}BarElement.id="bar",BarElement.defaults={borderSkipped:"start",borderWidth:0,borderRadius:0,inflateAmount:"auto",pointStyle:void 0},BarElement.defaultRoutes={backgroundColor:"backgroundColor",borderColor:"borderColor"};var elements=Object.freeze({__proto__:null,ArcElement:ArcElement,LineElement:LineElement,PointElement:PointElement,BarElement:BarElement});function cleanDecimatedDataset(dataset){if(dataset._decimated){const data=dataset._data;delete dataset._decimated,delete dataset._data,Object.defineProperty(dataset,"data",{value:data})}}function cleanDecimatedData(chart){chart.data.datasets.forEach((dataset=>{cleanDecimatedDataset(dataset)}))}var plugin_decimation={id:"decimation",defaults:{algorithm:"min-max",enabled:!1},beforeElementsUpdate:(chart,args,options)=>{if(!options.enabled)return void cleanDecimatedData(chart);const availableWidth=chart.width;chart.data.datasets.forEach(((dataset,datasetIndex)=>{const{_data:_data,indexAxis:indexAxis}=dataset,meta=chart.getDatasetMeta(datasetIndex),data=_data||dataset.data;if("y"===resolve([indexAxis,chart.options.indexAxis]))return;if(!meta.controller.supportsDecimation)return;const xAxis=chart.scales[meta.xAxisID];if("linear"!==xAxis.type&&"time"!==xAxis.type)return;if(chart.options.parsing)return;let decimated,{start:start,count:count}=function(meta,points){const pointCount=points.length;let count,start=0;const{iScale:iScale}=meta,{min:min,max:max,minDefined:minDefined,maxDefined:maxDefined}=iScale.getUserBounds();return minDefined&&(start=_limitValue(_lookupByKey(points,iScale.axis,min).lo,0,pointCount-1)),count=maxDefined?_limitValue(_lookupByKey(points,iScale.axis,max).hi+1,start,pointCount)-start:pointCount-start,{start:start,count:count}}(meta,data);if(count<=(options.threshold||4*availableWidth))cleanDecimatedDataset(dataset);else{switch(isNullOrUndef(_data)&&(dataset._data=data,delete dataset.data,Object.defineProperty(dataset,"data",{configurable:!0,enumerable:!0,get:function(){return this._decimated},set:function(d){this._data=d}})),options.algorithm){case"lttb":decimated=function(data,start,count,availableWidth,options){const samples=options.samples||availableWidth;if(samples>=count)return data.slice(start,start+count);const decimated=[],bucketWidth=(count-2)/(samples-2);let sampledIndex=0;const endIndex=start+count-1;let i,maxAreaPoint,maxArea,area,nextA,a=start;for(decimated[sampledIndex++]=data[a],i=0;imaxArea&&(maxArea=area,maxAreaPoint=data[j],nextA=j);decimated[sampledIndex++]=maxAreaPoint,a=nextA}return decimated[sampledIndex++]=data[endIndex],decimated}(data,start,count,availableWidth,options);break;case"min-max":decimated=function(data,start,count,availableWidth){let i,point,x,y,prevX,minIndex,maxIndex,startIndex,minY,maxY,avgX=0,countX=0;const decimated=[],endIndex=start+count-1,xMin=data[start].x,dx=data[endIndex].x-xMin;for(i=start;imaxY&&(maxY=y,maxIndex=i),avgX=(countX*avgX+point.x)/++countX;else{const lastIndex=i-1;if(!isNullOrUndef(minIndex)&&!isNullOrUndef(maxIndex)){const intermediateIndex1=Math.min(minIndex,maxIndex),intermediateIndex2=Math.max(minIndex,maxIndex);intermediateIndex1!==startIndex&&intermediateIndex1!==lastIndex&&decimated.push({...data[intermediateIndex1],x:avgX}),intermediateIndex2!==startIndex&&intermediateIndex2!==lastIndex&&decimated.push({...data[intermediateIndex2],x:avgX})}i>0&&lastIndex!==startIndex&&decimated.push(data[lastIndex]),decimated.push(point),prevX=truncX,countX=0,minY=maxY=y,minIndex=maxIndex=startIndex=i}}return decimated}(data,start,count,availableWidth);break;default:throw new Error("Unsupported decimation algorithm '".concat(options.algorithm,"'"))}dataset._decimated=decimated}}))},destroy(chart){cleanDecimatedData(chart)}};function _getBounds(property,first,last,loop){if(loop)return;let start=first[property],end=last[property];return"angle"===property&&(start=_normalizeAngle(start),end=_normalizeAngle(end)),{property:property,start:start,end:end}}function _findSegmentEnd(start,end,points){for(;end>start;end--){const point=points[end];if(!isNaN(point.x)&&!isNaN(point.y))break}return end}function _getEdge(a,b,prop,fn){return a&&b?fn(a[prop],b[prop]):a?a[prop]:b?b[prop]:0}function _createBoundaryLine(boundary,line){let points=[],_loop=!1;return isArray(boundary)?(_loop=!0,points=boundary):points=function(boundary,line){const{x:x=null,y:y=null}=boundary||{},linePoints=line.points,points=[];return line.segments.forEach((_ref4=>{let{start:start,end:end}=_ref4;end=_findSegmentEnd(start,end,linePoints);const first=linePoints[start],last=linePoints[end];null!==y?(points.push({x:first.x,y:y}),points.push({x:last.x,y:y})):null!==x&&(points.push({x:x,y:first.y}),points.push({x:x,y:last.y}))})),points}(boundary,line),points.length?new LineElement({points:points,options:{tension:0},_loop:_loop,_fullLoop:_loop}):null}function _resolveTarget(sources,index,propagate){let fill=sources[index].fill;const visited=[index];let target;if(!propagate)return fill;for(;!1!==fill&&-1===visited.indexOf(fill);){if(!isNumberFinite(fill))return fill;if(target=sources[fill],!target)return!1;if(target.visible)return fill;visited.push(fill),fill=target.fill}return!1}function _decodeFill(line,index,count){const fill=function(line){const options=line.options,fillOption=options.fill;let fill=valueOrDefault(fillOption&&fillOption.target,fillOption);return void 0===fill&&(fill=!!options.backgroundColor),!1!==fill&&null!==fill&&(!0===fill?"origin":fill)}(line);if(isObject(fill))return!isNaN(fill.value)&&fill;let target=parseFloat(fill);return isNumberFinite(target)&&Math.floor(target)===target?function(firstCh,index,target,count){return"-"!==firstCh&&"+"!==firstCh||(target=index+target),!(target===index||target<0||target>=count)&&target}(fill[0],index,target,count):["origin","start","end","stack","shape"].indexOf(fill)>=0&&fill}function addPointsBelow(points,sourcePoint,linesBelow){const postponed=[];for(let j=0;j=0;--i){const source=metasets[i].$filler;source&&(source.line.updateControlPoints(area,source.axis),draw&&_drawfill(chart.ctx,source,area))}},beforeDatasetsDraw(chart,_args,options){if("beforeDatasetsDraw"!==options.drawTime)return;const metasets=chart.getSortedVisibleDatasetMetas();for(let i=metasets.length-1;i>=0;--i){const source=metasets[i].$filler;source&&_drawfill(chart.ctx,source,chart.chartArea)}},beforeDatasetDraw(chart,args,options){const source=args.meta.$filler;source&&!1!==source.fill&&"beforeDatasetDraw"===options.drawTime&&_drawfill(chart.ctx,source,chart.chartArea)},defaults:{propagate:!0,drawTime:"beforeDatasetDraw"}};const getBoxSize=(labelOpts,fontSize)=>{let{boxHeight:boxHeight=fontSize,boxWidth:boxWidth=fontSize}=labelOpts;return labelOpts.usePointStyle&&(boxHeight=Math.min(boxHeight,fontSize),boxWidth=Math.min(boxWidth,fontSize)),{boxWidth:boxWidth,boxHeight:boxHeight,itemHeight:Math.max(fontSize,boxHeight)}};class Legend extends Element{constructor(config){super(),this._added=!1,this.legendHitBoxes=[],this._hoveredItem=null,this.doughnutMode=!1,this.chart=config.chart,this.options=config.options,this.ctx=config.ctx,this.legendItems=void 0,this.columnSizes=void 0,this.lineWidths=void 0,this.maxHeight=void 0,this.maxWidth=void 0,this.top=void 0,this.bottom=void 0,this.left=void 0,this.right=void 0,this.height=void 0,this.width=void 0,this._margins=void 0,this.position=void 0,this.weight=void 0,this.fullSize=void 0}update(maxWidth,maxHeight,margins){this.maxWidth=maxWidth,this.maxHeight=maxHeight,this._margins=margins,this.setDimensions(),this.buildLabels(),this.fit()}setDimensions(){this.isHorizontal()?(this.width=this.maxWidth,this.left=this._margins.left,this.right=this.width):(this.height=this.maxHeight,this.top=this._margins.top,this.bottom=this.height)}buildLabels(){const labelOpts=this.options.labels||{};let legendItems=callback(labelOpts.generateLabels,[this.chart],this)||[];labelOpts.filter&&(legendItems=legendItems.filter((item=>labelOpts.filter(item,this.chart.data)))),labelOpts.sort&&(legendItems=legendItems.sort(((a,b)=>labelOpts.sort(a,b,this.chart.data)))),this.options.reverse&&legendItems.reverse(),this.legendItems=legendItems}fit(){const{options:options,ctx:ctx}=this;if(!options.display)return void(this.width=this.height=0);const labelOpts=options.labels,labelFont=toFont(labelOpts.font),fontSize=labelFont.size,titleHeight=this._computeTitleHeight(),{boxWidth:boxWidth,itemHeight:itemHeight}=getBoxSize(labelOpts,fontSize);let width,height;ctx.font=labelFont.string,this.isHorizontal()?(width=this.maxWidth,height=this._fitRows(titleHeight,fontSize,boxWidth,itemHeight)+10):(height=this.maxHeight,width=this._fitCols(titleHeight,fontSize,boxWidth,itemHeight)+10),this.width=Math.min(width,options.maxWidth||this.maxWidth),this.height=Math.min(height,options.maxHeight||this.maxHeight)}_fitRows(titleHeight,fontSize,boxWidth,itemHeight){const{ctx:ctx,maxWidth:maxWidth,options:{labels:{padding:padding}}}=this,hitboxes=this.legendHitBoxes=[],lineWidths=this.lineWidths=[0],lineHeight=itemHeight+padding;let totalHeight=titleHeight;ctx.textAlign="left",ctx.textBaseline="middle";let row=-1,top=-lineHeight;return this.legendItems.forEach(((legendItem,i)=>{const itemWidth=boxWidth+fontSize/2+ctx.measureText(legendItem.text).width;(0===i||lineWidths[lineWidths.length-1]+itemWidth+2*padding>maxWidth)&&(totalHeight+=lineHeight,lineWidths[lineWidths.length-(i>0?0:1)]=0,top+=lineHeight,row++),hitboxes[i]={left:0,top:top,row:row,width:itemWidth,height:itemHeight},lineWidths[lineWidths.length-1]+=itemWidth+padding})),totalHeight}_fitCols(titleHeight,fontSize,boxWidth,itemHeight){const{ctx:ctx,maxHeight:maxHeight,options:{labels:{padding:padding}}}=this,hitboxes=this.legendHitBoxes=[],columnSizes=this.columnSizes=[],heightLimit=maxHeight-titleHeight;let totalWidth=padding,currentColWidth=0,currentColHeight=0,left=0,col=0;return this.legendItems.forEach(((legendItem,i)=>{const itemWidth=boxWidth+fontSize/2+ctx.measureText(legendItem.text).width;i>0&¤tColHeight+itemHeight+2*padding>heightLimit&&(totalWidth+=currentColWidth+padding,columnSizes.push({width:currentColWidth,height:currentColHeight}),left+=currentColWidth+padding,col++,currentColWidth=currentColHeight=0),hitboxes[i]={left:left,top:currentColHeight,col:col,width:itemWidth,height:itemHeight},currentColWidth=Math.max(currentColWidth,itemWidth),currentColHeight+=itemHeight+padding})),totalWidth+=currentColWidth,columnSizes.push({width:currentColWidth,height:currentColHeight}),totalWidth}adjustHitBoxes(){if(!this.options.display)return;const titleHeight=this._computeTitleHeight(),{legendHitBoxes:hitboxes,options:{align:align,labels:{padding:padding},rtl:rtl}}=this,rtlHelper=getRtlAdapter(rtl,this.left,this.width);if(this.isHorizontal()){let row=0,left=_alignStartEnd(align,this.left+padding,this.right-this.lineWidths[row]);for(const hitbox of hitboxes)row!==hitbox.row&&(row=hitbox.row,left=_alignStartEnd(align,this.left+padding,this.right-this.lineWidths[row])),hitbox.top+=this.top+titleHeight+padding,hitbox.left=rtlHelper.leftForLtr(rtlHelper.x(left),hitbox.width),left+=hitbox.width+padding}else{let col=0,top=_alignStartEnd(align,this.top+titleHeight+padding,this.bottom-this.columnSizes[col].height);for(const hitbox of hitboxes)hitbox.col!==col&&(col=hitbox.col,top=_alignStartEnd(align,this.top+titleHeight+padding,this.bottom-this.columnSizes[col].height)),hitbox.top=top,hitbox.left+=this.left+padding,hitbox.left=rtlHelper.leftForLtr(rtlHelper.x(hitbox.left),hitbox.width),top+=hitbox.height+padding}}isHorizontal(){return"top"===this.options.position||"bottom"===this.options.position}draw(){if(this.options.display){const ctx=this.ctx;clipArea(ctx,this),this._draw(),unclipArea(ctx)}}_draw(){const{options:opts,columnSizes:columnSizes,lineWidths:lineWidths,ctx:ctx}=this,{align:align,labels:labelOpts}=opts,defaultColor=defaults.color,rtlHelper=getRtlAdapter(opts.rtl,this.left,this.width),labelFont=toFont(labelOpts.font),{color:fontColor,padding:padding}=labelOpts,fontSize=labelFont.size,halfFontSize=fontSize/2;let cursor;this.drawTitle(),ctx.textAlign=rtlHelper.textAlign("left"),ctx.textBaseline="middle",ctx.lineWidth=.5,ctx.font=labelFont.string;const{boxWidth:boxWidth,boxHeight:boxHeight,itemHeight:itemHeight}=getBoxSize(labelOpts,fontSize),isHorizontal=this.isHorizontal(),titleHeight=this._computeTitleHeight();cursor=isHorizontal?{x:_alignStartEnd(align,this.left+padding,this.right-lineWidths[0]),y:this.top+padding+titleHeight,line:0}:{x:this.left+padding,y:_alignStartEnd(align,this.top+titleHeight+padding,this.bottom-columnSizes[0].height),line:0},overrideTextDirection(this.ctx,opts.textDirection);const lineHeight=itemHeight+padding;this.legendItems.forEach(((legendItem,i)=>{ctx.strokeStyle=legendItem.fontColor||fontColor,ctx.fillStyle=legendItem.fontColor||fontColor;const textWidth=ctx.measureText(legendItem.text).width,textAlign=rtlHelper.textAlign(legendItem.textAlign||(legendItem.textAlign=labelOpts.textAlign)),width=boxWidth+halfFontSize+textWidth;let x=cursor.x,y=cursor.y;rtlHelper.setWidth(this.width),isHorizontal?i>0&&x+width+padding>this.right&&(y=cursor.y+=lineHeight,cursor.line++,x=cursor.x=_alignStartEnd(align,this.left+padding,this.right-lineWidths[cursor.line])):i>0&&y+lineHeight>this.bottom&&(x=cursor.x=x+columnSizes[cursor.line].width+padding,cursor.line++,y=cursor.y=_alignStartEnd(align,this.top+titleHeight+padding,this.bottom-columnSizes[cursor.line].height)),function(x,y,legendItem){if(isNaN(boxWidth)||boxWidth<=0||isNaN(boxHeight)||boxHeight<0)return;ctx.save();const lineWidth=valueOrDefault(legendItem.lineWidth,1);if(ctx.fillStyle=valueOrDefault(legendItem.fillStyle,defaultColor),ctx.lineCap=valueOrDefault(legendItem.lineCap,"butt"),ctx.lineDashOffset=valueOrDefault(legendItem.lineDashOffset,0),ctx.lineJoin=valueOrDefault(legendItem.lineJoin,"miter"),ctx.lineWidth=lineWidth,ctx.strokeStyle=valueOrDefault(legendItem.strokeStyle,defaultColor),ctx.setLineDash(valueOrDefault(legendItem.lineDash,[])),labelOpts.usePointStyle){const drawOptions={radius:boxWidth*Math.SQRT2/2,pointStyle:legendItem.pointStyle,rotation:legendItem.rotation,borderWidth:lineWidth},centerX=rtlHelper.xPlus(x,boxWidth/2);drawPoint(ctx,drawOptions,centerX,y+halfFontSize)}else{const yBoxTop=y+Math.max((fontSize-boxHeight)/2,0),xBoxLeft=rtlHelper.leftForLtr(x,boxWidth),borderRadius=toTRBLCorners(legendItem.borderRadius);ctx.beginPath(),Object.values(borderRadius).some((v=>0!==v))?addRoundedRectPath(ctx,{x:xBoxLeft,y:yBoxTop,w:boxWidth,h:boxHeight,radius:borderRadius}):ctx.rect(xBoxLeft,yBoxTop,boxWidth,boxHeight),ctx.fill(),0!==lineWidth&&ctx.stroke()}ctx.restore()}(rtlHelper.x(x),y,legendItem),x=_textX(textAlign,x+boxWidth+halfFontSize,isHorizontal?x+width:this.right,opts.rtl),function(x,y,legendItem){renderText(ctx,legendItem.text,x,y+itemHeight/2,labelFont,{strikethrough:legendItem.hidden,textAlign:rtlHelper.textAlign(legendItem.textAlign)})}(rtlHelper.x(x),y,legendItem),isHorizontal?cursor.x+=width+padding:cursor.y+=lineHeight})),restoreTextDirection(this.ctx,opts.textDirection)}drawTitle(){const opts=this.options,titleOpts=opts.title,titleFont=toFont(titleOpts.font),titlePadding=toPadding(titleOpts.padding);if(!titleOpts.display)return;const rtlHelper=getRtlAdapter(opts.rtl,this.left,this.width),ctx=this.ctx,position=titleOpts.position,halfFontSize=titleFont.size/2,topPaddingPlusHalfFontSize=titlePadding.top+halfFontSize;let y,left=this.left,maxWidth=this.width;if(this.isHorizontal())maxWidth=Math.max(...this.lineWidths),y=this.top+topPaddingPlusHalfFontSize,left=_alignStartEnd(opts.align,left,this.right-maxWidth);else{const maxHeight=this.columnSizes.reduce(((acc,size)=>Math.max(acc,size.height)),0);y=topPaddingPlusHalfFontSize+_alignStartEnd(opts.align,this.top,this.bottom-maxHeight-opts.labels.padding-this._computeTitleHeight())}const x=_alignStartEnd(position,left,left+maxWidth);ctx.textAlign=rtlHelper.textAlign(_toLeftRightCenter(position)),ctx.textBaseline="middle",ctx.strokeStyle=titleOpts.color,ctx.fillStyle=titleOpts.color,ctx.font=titleFont.string,renderText(ctx,titleOpts.text,x,y,titleFont)}_computeTitleHeight(){const titleOpts=this.options.title,titleFont=toFont(titleOpts.font),titlePadding=toPadding(titleOpts.padding);return titleOpts.display?titleFont.lineHeight+titlePadding.height:0}_getLegendItemAt(x,y){let i,hitBox,lh;if(_isBetween(x,this.left,this.right)&&_isBetween(y,this.top,this.bottom))for(lh=this.legendHitBoxes,i=0;ictx.chart.options.color,boxWidth:40,padding:10,generateLabels(chart){const datasets=chart.data.datasets,{labels:{usePointStyle:usePointStyle,pointStyle:pointStyle,textAlign:textAlign,color:color}}=chart.legend.options;return chart._getSortedDatasetMetas().map((meta=>{const style=meta.controller.getStyle(usePointStyle?0:void 0),borderWidth=toPadding(style.borderWidth);return{text:datasets[meta.index].label,fillStyle:style.backgroundColor,fontColor:color,hidden:!meta.visible,lineCap:style.borderCapStyle,lineDash:style.borderDash,lineDashOffset:style.borderDashOffset,lineJoin:style.borderJoinStyle,lineWidth:(borderWidth.width+borderWidth.height)/4,strokeStyle:style.borderColor,pointStyle:pointStyle||style.pointStyle,rotation:style.rotation,textAlign:textAlign||style.textAlign,borderRadius:0,datasetIndex:meta.index}}),this)}},title:{color:ctx=>ctx.chart.options.color,display:!1,position:"center",text:""}},descriptors:{_scriptable:name=>!name.startsWith("on"),labels:{_scriptable:name=>!["generateLabels","filter","sort"].includes(name)}}};class Title extends Element{constructor(config){super(),this.chart=config.chart,this.options=config.options,this.ctx=config.ctx,this._padding=void 0,this.top=void 0,this.bottom=void 0,this.left=void 0,this.right=void 0,this.width=void 0,this.height=void 0,this.position=void 0,this.weight=void 0,this.fullSize=void 0}update(maxWidth,maxHeight){const opts=this.options;if(this.left=0,this.top=0,!opts.display)return void(this.width=this.height=this.right=this.bottom=0);this.width=this.right=maxWidth,this.height=this.bottom=maxHeight;const lineCount=isArray(opts.text)?opts.text.length:1;this._padding=toPadding(opts.padding);const textSize=lineCount*toFont(opts.font).lineHeight+this._padding.height;this.isHorizontal()?this.height=textSize:this.width=textSize}isHorizontal(){const pos=this.options.position;return"top"===pos||"bottom"===pos}_drawArgs(offset){const{top:top,left:left,bottom:bottom,right:right,options:options}=this,align=options.align;let maxWidth,titleX,titleY,rotation=0;return this.isHorizontal()?(titleX=_alignStartEnd(align,left,right),titleY=top+offset,maxWidth=right-left):("left"===options.position?(titleX=left+offset,titleY=_alignStartEnd(align,bottom,top),rotation=-.5*PI):(titleX=right-offset,titleY=_alignStartEnd(align,top,bottom),rotation=.5*PI),maxWidth=bottom-top),{titleX:titleX,titleY:titleY,maxWidth:maxWidth,rotation:rotation}}draw(){const ctx=this.ctx,opts=this.options;if(!opts.display)return;const fontOpts=toFont(opts.font),offset=fontOpts.lineHeight/2+this._padding.top,{titleX:titleX,titleY:titleY,maxWidth:maxWidth,rotation:rotation}=this._drawArgs(offset);renderText(ctx,opts.text,0,0,fontOpts,{color:opts.color,maxWidth:maxWidth,rotation:rotation,textAlign:_toLeftRightCenter(opts.align),textBaseline:"middle",translation:[titleX,titleY]})}}var plugin_title={id:"title",_element:Title,start(chart,_args,options){!function(chart,titleOpts){const title=new Title({ctx:chart.ctx,options:titleOpts,chart:chart});layouts.configure(chart,title,titleOpts),layouts.addBox(chart,title),chart.titleBlock=title}(chart,options)},stop(chart){const titleBlock=chart.titleBlock;layouts.removeBox(chart,titleBlock),delete chart.titleBlock},beforeUpdate(chart,_args,options){const title=chart.titleBlock;layouts.configure(chart,title,options),title.options=options},defaults:{align:"center",display:!1,font:{weight:"bold"},fullSize:!0,padding:10,position:"top",text:"",weight:2e3},defaultRoutes:{color:"color"},descriptors:{_scriptable:!0,_indexable:!1}};const map=new WeakMap;var plugin_subtitle={id:"subtitle",start(chart,_args,options){const title=new Title({ctx:chart.ctx,options:options,chart:chart});layouts.configure(chart,title,options),layouts.addBox(chart,title),map.set(chart,title)},stop(chart){layouts.removeBox(chart,map.get(chart)),map.delete(chart)},beforeUpdate(chart,_args,options){const title=map.get(chart);layouts.configure(chart,title,options),title.options=options},defaults:{align:"center",display:!1,font:{weight:"normal"},fullSize:!0,padding:0,position:"top",text:"",weight:1500},defaultRoutes:{color:"color"},descriptors:{_scriptable:!0,_indexable:!1}};const positioners={average(items){if(!items.length)return!1;let i,len,x=0,y=0,count=0;for(i=0,len=items.length;i-1?str.split("\n"):str}function createTooltipItem(chart,item){const{element:element,datasetIndex:datasetIndex,index:index}=item,controller=chart.getDatasetMeta(datasetIndex).controller,{label:label,value:value}=controller.getLabelAndValue(index);return{chart:chart,label:label,parsed:controller.getParsed(index),raw:chart.data.datasets[datasetIndex].data[index],formattedValue:value,dataset:controller.getDataset(),dataIndex:index,datasetIndex:datasetIndex,element:element}}function getTooltipSize(tooltip,options){const ctx=tooltip.chart.ctx,{body:body,footer:footer,title:title}=tooltip,{boxWidth:boxWidth,boxHeight:boxHeight}=options,bodyFont=toFont(options.bodyFont),titleFont=toFont(options.titleFont),footerFont=toFont(options.footerFont),titleLineCount=title.length,footerLineCount=footer.length,bodyLineItemCount=body.length,padding=toPadding(options.padding);let height=padding.height,width=0,combinedBodyLength=body.reduce(((count,bodyItem)=>count+bodyItem.before.length+bodyItem.lines.length+bodyItem.after.length),0);combinedBodyLength+=tooltip.beforeBody.length+tooltip.afterBody.length,titleLineCount&&(height+=titleLineCount*titleFont.lineHeight+(titleLineCount-1)*options.titleSpacing+options.titleMarginBottom),combinedBodyLength&&(height+=bodyLineItemCount*(options.displayColors?Math.max(boxHeight,bodyFont.lineHeight):bodyFont.lineHeight)+(combinedBodyLength-bodyLineItemCount)*bodyFont.lineHeight+(combinedBodyLength-1)*options.bodySpacing),footerLineCount&&(height+=options.footerMarginTop+footerLineCount*footerFont.lineHeight+(footerLineCount-1)*options.footerSpacing);let widthPadding=0;const maxLineWidth=function(line){width=Math.max(width,ctx.measureText(line).width+widthPadding)};return ctx.save(),ctx.font=titleFont.string,each(tooltip.title,maxLineWidth),ctx.font=bodyFont.string,each(tooltip.beforeBody.concat(tooltip.afterBody),maxLineWidth),widthPadding=options.displayColors?boxWidth+2+options.boxPadding:0,each(body,(bodyItem=>{each(bodyItem.before,maxLineWidth),each(bodyItem.lines,maxLineWidth),each(bodyItem.after,maxLineWidth)})),widthPadding=0,ctx.font=footerFont.string,each(tooltip.footer,maxLineWidth),ctx.restore(),width+=padding.width,{width:width,height:height}}function determineXAlign(chart,options,size,yAlign){const{x:x,width:width}=size,{width:chartWidth,chartArea:{left:left,right:right}}=chart;let xAlign="center";return"center"===yAlign?xAlign=x<=(left+right)/2?"left":"right":x<=width/2?xAlign="left":x>=chartWidth-width/2&&(xAlign="right"),function(xAlign,chart,options,size){const{x:x,width:width}=size,caret=options.caretSize+options.caretPadding;return"left"===xAlign&&x+width+caret>chart.width||"right"===xAlign&&x-width-caret<0||void 0}(xAlign,chart,options,size)&&(xAlign="center"),xAlign}function determineAlignment(chart,options,size){const yAlign=size.yAlign||options.yAlign||function(chart,size){const{y:y,height:height}=size;return ychart.height-height/2?"bottom":"center"}(chart,size);return{xAlign:size.xAlign||options.xAlign||determineXAlign(chart,options,size,yAlign),yAlign:yAlign}}function getBackgroundPoint(options,size,alignment,chart){const{caretSize:caretSize,caretPadding:caretPadding,cornerRadius:cornerRadius}=options,{xAlign:xAlign,yAlign:yAlign}=alignment,paddingAndSize=caretSize+caretPadding,{topLeft:topLeft,topRight:topRight,bottomLeft:bottomLeft,bottomRight:bottomRight}=toTRBLCorners(cornerRadius);let x=function(size,xAlign){let{x:x,width:width}=size;return"right"===xAlign?x-=width:"center"===xAlign&&(x-=width/2),x}(size,xAlign);const y=function(size,yAlign,paddingAndSize){let{y:y,height:height}=size;return"top"===yAlign?y+=paddingAndSize:y-="bottom"===yAlign?height+paddingAndSize:height/2,y}(size,yAlign,paddingAndSize);return"center"===yAlign?"left"===xAlign?x+=paddingAndSize:"right"===xAlign&&(x-=paddingAndSize):"left"===xAlign?x-=Math.max(topLeft,bottomLeft)+caretSize:"right"===xAlign&&(x+=Math.max(topRight,bottomRight)+caretSize),{x:_limitValue(x,0,chart.width-size.width),y:_limitValue(y,0,chart.height-size.height)}}function getAlignedX(tooltip,align,options){const padding=toPadding(options.padding);return"center"===align?tooltip.x+tooltip.width/2:"right"===align?tooltip.x+tooltip.width-padding.right:tooltip.x+padding.left}function getBeforeAfterBodyLines(callback){return pushOrConcat([],splitNewlines(callback))}function overrideCallbacks(callbacks,context){const override=context&&context.dataset&&context.dataset.tooltip&&context.dataset.tooltip.callbacks;return override?callbacks.override(override):callbacks}class Tooltip extends Element{constructor(config){super(),this.opacity=0,this._active=[],this._eventPosition=void 0,this._size=void 0,this._cachedAnimations=void 0,this._tooltipItems=[],this.$animations=void 0,this.$context=void 0,this.chart=config.chart||config._chart,this._chart=this.chart,this.options=config.options,this.dataPoints=void 0,this.title=void 0,this.beforeBody=void 0,this.body=void 0,this.afterBody=void 0,this.footer=void 0,this.xAlign=void 0,this.yAlign=void 0,this.x=void 0,this.y=void 0,this.height=void 0,this.width=void 0,this.caretX=void 0,this.caretY=void 0,this.labelColors=void 0,this.labelPointStyles=void 0,this.labelTextColors=void 0}initialize(options){this.options=options,this._cachedAnimations=void 0,this.$context=void 0}_resolveAnimations(){const cached=this._cachedAnimations;if(cached)return cached;const chart=this.chart,options=this.options.setContext(this.getContext()),opts=options.enabled&&chart.options.animation&&options.animations,animations=new Animations(this.chart,opts);return opts._cacheable&&(this._cachedAnimations=Object.freeze(animations)),animations}getContext(){return this.$context||(this.$context=(parent=this.chart.getContext(),tooltip=this,tooltipItems=this._tooltipItems,createContext(parent,{tooltip:tooltip,tooltipItems:tooltipItems,type:"tooltip"})));var parent,tooltip,tooltipItems}getTitle(context,options){const{callbacks:callbacks}=options,beforeTitle=callbacks.beforeTitle.apply(this,[context]),title=callbacks.title.apply(this,[context]),afterTitle=callbacks.afterTitle.apply(this,[context]);let lines=[];return lines=pushOrConcat(lines,splitNewlines(beforeTitle)),lines=pushOrConcat(lines,splitNewlines(title)),lines=pushOrConcat(lines,splitNewlines(afterTitle)),lines}getBeforeBody(tooltipItems,options){return getBeforeAfterBodyLines(options.callbacks.beforeBody.apply(this,[tooltipItems]))}getBody(tooltipItems,options){const{callbacks:callbacks}=options,bodyItems=[];return each(tooltipItems,(context=>{const bodyItem={before:[],lines:[],after:[]},scoped=overrideCallbacks(callbacks,context);pushOrConcat(bodyItem.before,splitNewlines(scoped.beforeLabel.call(this,context))),pushOrConcat(bodyItem.lines,scoped.label.call(this,context)),pushOrConcat(bodyItem.after,splitNewlines(scoped.afterLabel.call(this,context))),bodyItems.push(bodyItem)})),bodyItems}getAfterBody(tooltipItems,options){return getBeforeAfterBodyLines(options.callbacks.afterBody.apply(this,[tooltipItems]))}getFooter(tooltipItems,options){const{callbacks:callbacks}=options,beforeFooter=callbacks.beforeFooter.apply(this,[tooltipItems]),footer=callbacks.footer.apply(this,[tooltipItems]),afterFooter=callbacks.afterFooter.apply(this,[tooltipItems]);let lines=[];return lines=pushOrConcat(lines,splitNewlines(beforeFooter)),lines=pushOrConcat(lines,splitNewlines(footer)),lines=pushOrConcat(lines,splitNewlines(afterFooter)),lines}_createItems(options){const active=this._active,data=this.chart.data,labelColors=[],labelPointStyles=[],labelTextColors=[];let i,len,tooltipItems=[];for(i=0,len=active.length;ioptions.filter(element,index,array,data)))),options.itemSort&&(tooltipItems=tooltipItems.sort(((a,b)=>options.itemSort(a,b,data)))),each(tooltipItems,(context=>{const scoped=overrideCallbacks(options.callbacks,context);labelColors.push(scoped.labelColor.call(this,context)),labelPointStyles.push(scoped.labelPointStyle.call(this,context)),labelTextColors.push(scoped.labelTextColor.call(this,context))})),this.labelColors=labelColors,this.labelPointStyles=labelPointStyles,this.labelTextColors=labelTextColors,this.dataPoints=tooltipItems,tooltipItems}update(changed,replay){const options=this.options.setContext(this.getContext()),active=this._active;let properties,tooltipItems=[];if(active.length){const position=positioners[options.position].call(this,active,this._eventPosition);tooltipItems=this._createItems(options),this.title=this.getTitle(tooltipItems,options),this.beforeBody=this.getBeforeBody(tooltipItems,options),this.body=this.getBody(tooltipItems,options),this.afterBody=this.getAfterBody(tooltipItems,options),this.footer=this.getFooter(tooltipItems,options);const size=this._size=getTooltipSize(this,options),positionAndSize=Object.assign({},position,size),alignment=determineAlignment(this.chart,options,positionAndSize),backgroundPoint=getBackgroundPoint(options,positionAndSize,alignment,this.chart);this.xAlign=alignment.xAlign,this.yAlign=alignment.yAlign,properties={opacity:1,x:backgroundPoint.x,y:backgroundPoint.y,width:size.width,height:size.height,caretX:position.x,caretY:position.y}}else 0!==this.opacity&&(properties={opacity:0});this._tooltipItems=tooltipItems,this.$context=void 0,properties&&this._resolveAnimations().update(this,properties),changed&&options.external&&options.external.call(this,{chart:this.chart,tooltip:this,replay:replay})}drawCaret(tooltipPoint,ctx,size,options){const caretPosition=this.getCaretPosition(tooltipPoint,size,options);ctx.lineTo(caretPosition.x1,caretPosition.y1),ctx.lineTo(caretPosition.x2,caretPosition.y2),ctx.lineTo(caretPosition.x3,caretPosition.y3)}getCaretPosition(tooltipPoint,size,options){const{xAlign:xAlign,yAlign:yAlign}=this,{caretSize:caretSize,cornerRadius:cornerRadius}=options,{topLeft:topLeft,topRight:topRight,bottomLeft:bottomLeft,bottomRight:bottomRight}=toTRBLCorners(cornerRadius),{x:ptX,y:ptY}=tooltipPoint,{width:width,height:height}=size;let x1,x2,x3,y1,y2,y3;return"center"===yAlign?(y2=ptY+height/2,"left"===xAlign?(x1=ptX,x2=x1-caretSize,y1=y2+caretSize,y3=y2-caretSize):(x1=ptX+width,x2=x1+caretSize,y1=y2-caretSize,y3=y2+caretSize),x3=x1):(x2="left"===xAlign?ptX+Math.max(topLeft,bottomLeft)+caretSize:"right"===xAlign?ptX+width-Math.max(topRight,bottomRight)-caretSize:this.caretX,"top"===yAlign?(y1=ptY,y2=y1-caretSize,x1=x2-caretSize,x3=x2+caretSize):(y1=ptY+height,y2=y1+caretSize,x1=x2+caretSize,x3=x2-caretSize),y3=y1),{x1:x1,x2:x2,x3:x3,y1:y1,y2:y2,y3:y3}}drawTitle(pt,ctx,options){const title=this.title,length=title.length;let titleFont,titleSpacing,i;if(length){const rtlHelper=getRtlAdapter(options.rtl,this.x,this.width);for(pt.x=getAlignedX(this,options.titleAlign,options),ctx.textAlign=rtlHelper.textAlign(options.titleAlign),ctx.textBaseline="middle",titleFont=toFont(options.titleFont),titleSpacing=options.titleSpacing,ctx.fillStyle=options.titleColor,ctx.font=titleFont.string,i=0;i0!==v))?(ctx.beginPath(),ctx.fillStyle=options.multiKeyBackground,addRoundedRectPath(ctx,{x:outerX,y:colorY,w:boxWidth,h:boxHeight,radius:borderRadius}),ctx.fill(),ctx.stroke(),ctx.fillStyle=labelColors.backgroundColor,ctx.beginPath(),addRoundedRectPath(ctx,{x:innerX,y:colorY+1,w:boxWidth-2,h:boxHeight-2,radius:borderRadius}),ctx.fill()):(ctx.fillStyle=options.multiKeyBackground,ctx.fillRect(outerX,colorY,boxWidth,boxHeight),ctx.strokeRect(outerX,colorY,boxWidth,boxHeight),ctx.fillStyle=labelColors.backgroundColor,ctx.fillRect(innerX,colorY+1,boxWidth-2,boxHeight-2))}ctx.fillStyle=this.labelTextColors[i]}drawBody(pt,ctx,options){const{body:body}=this,{bodySpacing:bodySpacing,bodyAlign:bodyAlign,displayColors:displayColors,boxHeight:boxHeight,boxWidth:boxWidth,boxPadding:boxPadding}=options,bodyFont=toFont(options.bodyFont);let bodyLineHeight=bodyFont.lineHeight,xLinePadding=0;const rtlHelper=getRtlAdapter(options.rtl,this.x,this.width),fillLineOfText=function(line){ctx.fillText(line,rtlHelper.x(pt.x+xLinePadding),pt.y+bodyLineHeight/2),pt.y+=bodyLineHeight+bodySpacing},bodyAlignForCalculation=rtlHelper.textAlign(bodyAlign);let bodyItem,textColor,lines,i,j,ilen,jlen;for(ctx.textAlign=bodyAlign,ctx.textBaseline="middle",ctx.font=bodyFont.string,pt.x=getAlignedX(this,bodyAlignForCalculation,options),ctx.fillStyle=options.bodyColor,each(this.beforeBody,fillLineOfText),xLinePadding=displayColors&&"right"!==bodyAlignForCalculation?"center"===bodyAlign?boxWidth/2+boxPadding:boxWidth+2+boxPadding:0,i=0,ilen=body.length;i0&&ctx.stroke()}_updateAnimationTarget(options){const chart=this.chart,anims=this.$animations,animX=anims&&anims.x,animY=anims&&anims.y;if(animX||animY){const position=positioners[options.position].call(this,this._active,this._eventPosition);if(!position)return;const size=this._size=getTooltipSize(this,options),positionAndSize=Object.assign({},position,this._size),alignment=determineAlignment(chart,options,positionAndSize),point=getBackgroundPoint(options,positionAndSize,alignment,chart);animX._to===point.x&&animY._to===point.y||(this.xAlign=alignment.xAlign,this.yAlign=alignment.yAlign,this.width=size.width,this.height=size.height,this.caretX=position.x,this.caretY=position.y,this._resolveAnimations().update(this,point))}}_willRender(){return!!this.opacity}draw(ctx){const options=this.options.setContext(this.getContext());let opacity=this.opacity;if(!opacity)return;this._updateAnimationTarget(options);const tooltipSize={width:this.width,height:this.height},pt={x:this.x,y:this.y};opacity=Math.abs(opacity)<.001?0:opacity;const padding=toPadding(options.padding),hasTooltipContent=this.title.length||this.beforeBody.length||this.body.length||this.afterBody.length||this.footer.length;options.enabled&&hasTooltipContent&&(ctx.save(),ctx.globalAlpha=opacity,this.drawBackground(pt,ctx,tooltipSize,options),overrideTextDirection(ctx,options.textDirection),pt.y+=padding.top,this.drawTitle(pt,ctx,options),this.drawBody(pt,ctx,options),this.drawFooter(pt,ctx,options),restoreTextDirection(ctx,options.textDirection),ctx.restore())}getActiveElements(){return this._active||[]}setActiveElements(activeElements,eventPosition){const lastActive=this._active,active=activeElements.map((_ref5=>{let{datasetIndex:datasetIndex,index:index}=_ref5;const meta=this.chart.getDatasetMeta(datasetIndex);if(!meta)throw new Error("Cannot find a dataset at index "+datasetIndex);return{datasetIndex:datasetIndex,element:meta.data[index],index:index}})),changed=!_elementsEqual(lastActive,active),positionChanged=this._positionChanged(active,eventPosition);(changed||positionChanged)&&(this._active=active,this._eventPosition=eventPosition,this._ignoreReplayEvents=!0,this.update(!0))}handleEvent(e,replay){let inChartArea=!(arguments.length>2&&void 0!==arguments[2])||arguments[2];if(replay&&this._ignoreReplayEvents)return!1;this._ignoreReplayEvents=!1;const options=this.options,lastActive=this._active||[],active=this._getActiveElements(e,lastActive,replay,inChartArea),positionChanged=this._positionChanged(active,e),changed=replay||!_elementsEqual(active,lastActive)||positionChanged;return changed&&(this._active=active,(options.enabled||options.external)&&(this._eventPosition={x:e.x,y:e.y},this.update(!0,replay))),changed}_getActiveElements(e,lastActive,replay,inChartArea){const options=this.options;if("mouseout"===e.type)return[];if(!inChartArea)return lastActive;const active=this.chart.getElementsAtEventForMode(e,options.mode,options,replay);return options.reverse&&active.reverse(),active}_positionChanged(active,e){const{caretX:caretX,caretY:caretY,options:options}=this,position=positioners[options.position].call(this,active,e);return!1!==position&&(caretX!==position.x||caretY!==position.y)}}Tooltip.positioners=positioners;var plugin_tooltip={id:"tooltip",_element:Tooltip,positioners:positioners,afterInit(chart,_args,options){options&&(chart.tooltip=new Tooltip({chart:chart,options:options}))},beforeUpdate(chart,_args,options){chart.tooltip&&chart.tooltip.initialize(options)},reset(chart,_args,options){chart.tooltip&&chart.tooltip.initialize(options)},afterDraw(chart){const tooltip=chart.tooltip;if(tooltip&&tooltip._willRender()){const args={tooltip:tooltip};if(!1===chart.notifyPlugins("beforeTooltipDraw",args))return;tooltip.draw(chart.ctx),chart.notifyPlugins("afterTooltipDraw",args)}},afterEvent(chart,args){if(chart.tooltip){const useFinalPosition=args.replay;chart.tooltip.handleEvent(args.event,useFinalPosition,args.inChartArea)&&(args.changed=!0)}},defaults:{enabled:!0,external:null,position:"average",backgroundColor:"rgba(0,0,0,0.8)",titleColor:"#fff",titleFont:{weight:"bold"},titleSpacing:2,titleMarginBottom:6,titleAlign:"left",bodyColor:"#fff",bodySpacing:2,bodyFont:{},bodyAlign:"left",footerColor:"#fff",footerSpacing:2,footerMarginTop:6,footerFont:{weight:"bold"},footerAlign:"left",padding:6,caretPadding:2,caretSize:5,cornerRadius:6,boxHeight:(ctx,opts)=>opts.bodyFont.size,boxWidth:(ctx,opts)=>opts.bodyFont.size,multiKeyBackground:"#fff",displayColors:!0,boxPadding:0,borderColor:"rgba(0,0,0,0)",borderWidth:0,animation:{duration:400,easing:"easeOutQuart"},animations:{numbers:{type:"number",properties:["x","y","width","height","caretX","caretY"]},opacity:{easing:"linear",duration:200}},callbacks:{beforeTitle:noop,title(tooltipItems){if(tooltipItems.length>0){const item=tooltipItems[0],labels=item.chart.data.labels,labelCount=labels?labels.length:0;if(this&&this.options&&"dataset"===this.options.mode)return item.dataset.label||"";if(item.label)return item.label;if(labelCount>0&&item.dataIndex"filter"!==name&&"itemSort"!==name&&"external"!==name,_indexable:!1,callbacks:{_scriptable:!1,_indexable:!1},animation:{_fallback:!1},animations:{_fallback:"animation"}},additionalOptionScopes:["interaction"]},plugins=Object.freeze({__proto__:null,Decimation:plugin_decimation,Filler:index,Legend:plugin_legend,SubTitle:plugin_subtitle,Title:plugin_title,Tooltip:plugin_tooltip});function findOrAddLabel(labels,raw,index,addedLabels){const first=labels.indexOf(raw);return-1===first?((labels,raw,index,addedLabels)=>("string"==typeof raw?(index=labels.push(raw)-1,addedLabels.unshift({index:index,label:raw})):isNaN(raw)&&(index=null),index))(labels,raw,index,addedLabels):first!==labels.lastIndexOf(raw)?index:first}class CategoryScale extends Scale{constructor(cfg){super(cfg),this._startValue=void 0,this._valueRange=0,this._addedLabels=[]}init(scaleOptions){const added=this._addedLabels;if(added.length){const labels=this.getLabels();for(const{index:index,label:label}of added)labels[index]===label&&labels.splice(index,1);this._addedLabels=[]}super.init(scaleOptions)}parse(raw,index){if(isNullOrUndef(raw))return null;const labels=this.getLabels();return((index,max)=>null===index?null:_limitValue(Math.round(index),0,max))(index=isFinite(index)&&labels[index]===raw?index:findOrAddLabel(labels,raw,valueOrDefault(index,raw),this._addedLabels),labels.length-1)}determineDataLimits(){const{minDefined:minDefined,maxDefined:maxDefined}=this.getUserBounds();let{min:min,max:max}=this.getMinMax(!0);"ticks"===this.options.bounds&&(minDefined||(min=0),maxDefined||(max=this.getLabels().length-1)),this.min=min,this.max=max}buildTicks(){const min=this.min,max=this.max,offset=this.options.offset,ticks=[];let labels=this.getLabels();labels=0===min&&max===labels.length-1?labels:labels.slice(min,max+1),this._valueRange=Math.max(labels.length-(offset?0:1),1),this._startValue=this.min-(offset?.5:0);for(let value=min;value<=max;value++)ticks.push({value:value});return ticks}getLabelForValue(value){const labels=this.getLabels();return value>=0&&valueticks.length-1?null:this.getPixelForValue(ticks[index].value)}getValueForPixel(pixel){return Math.round(this._startValue+this.getDecimalForPixel(pixel)*this._valueRange)}getBasePixel(){return this.bottom}}function relativeLabelSize(value,minSpacing,_ref6){let{horizontal:horizontal,minRotation:minRotation}=_ref6;const rad=toRadians(minRotation),ratio=(horizontal?Math.sin(rad):Math.cos(rad))||.001,length=.75*minSpacing*(""+value).length;return Math.min(minSpacing/ratio,length)}CategoryScale.id="category",CategoryScale.defaults={ticks:{callback:CategoryScale.prototype.getLabelForValue}};class LinearScaleBase extends Scale{constructor(cfg){super(cfg),this.start=void 0,this.end=void 0,this._startValue=void 0,this._endValue=void 0,this._valueRange=0}parse(raw,index){return isNullOrUndef(raw)||("number"==typeof raw||raw instanceof Number)&&!isFinite(+raw)?null:+raw}handleTickRangeOptions(){const{beginAtZero:beginAtZero}=this.options,{minDefined:minDefined,maxDefined:maxDefined}=this.getUserBounds();let{min:min,max:max}=this;const setMin=v=>min=minDefined?min:v,setMax=v=>max=maxDefined?max:v;if(beginAtZero){const minSign=sign(min),maxSign=sign(max);minSign<0&&maxSign<0?setMax(0):minSign>0&&maxSign>0&&setMin(0)}if(min===max){let offset=1;(max>=Number.MAX_SAFE_INTEGER||min<=Number.MIN_SAFE_INTEGER)&&(offset=Math.abs(.05*max)),setMax(max+offset),beginAtZero||setMin(min-offset)}this.min=min,this.max=max}getTickLimit(){const tickOpts=this.options.ticks;let maxTicks,{maxTicksLimit:maxTicksLimit,stepSize:stepSize}=tickOpts;return stepSize?(maxTicks=Math.ceil(this.max/stepSize)-Math.floor(this.min/stepSize)+1,maxTicks>1e3&&(console.warn("scales.".concat(this.id,".ticks.stepSize: ").concat(stepSize," would result generating up to ").concat(maxTicks," ticks. Limiting to 1000.")),maxTicks=1e3)):(maxTicks=this.computeTickLimit(),maxTicksLimit=maxTicksLimit||11),maxTicksLimit&&(maxTicks=Math.min(maxTicksLimit,maxTicks)),maxTicks}computeTickLimit(){return Number.POSITIVE_INFINITY}buildTicks(){const opts=this.options,tickOpts=opts.ticks;let maxTicks=this.getTickLimit();maxTicks=Math.max(2,maxTicks);const ticks=function(generationOptions,dataRange){const ticks=[],{bounds:bounds,step:step,min:min,max:max,precision:precision,count:count,maxTicks:maxTicks,maxDigits:maxDigits,includeBounds:includeBounds}=generationOptions,unit=step||1,maxSpaces=maxTicks-1,{min:rmin,max:rmax}=dataRange,minDefined=!isNullOrUndef(min),maxDefined=!isNullOrUndef(max),countDefined=!isNullOrUndef(count),minSpacing=(rmax-rmin)/(maxDigits+1);let factor,niceMin,niceMax,numSpaces,spacing=niceNum((rmax-rmin)/maxSpaces/unit)*unit;if(spacing<1e-14&&!minDefined&&!maxDefined)return[{value:rmin},{value:rmax}];numSpaces=Math.ceil(rmax/spacing)-Math.floor(rmin/spacing),numSpaces>maxSpaces&&(spacing=niceNum(numSpaces*spacing/maxSpaces/unit)*unit),isNullOrUndef(precision)||(factor=Math.pow(10,precision),spacing=Math.ceil(spacing*factor)/factor),"ticks"===bounds?(niceMin=Math.floor(rmin/spacing)*spacing,niceMax=Math.ceil(rmax/spacing)*spacing):(niceMin=rmin,niceMax=rmax),minDefined&&maxDefined&&step&&almostWhole((max-min)/step,spacing/1e3)?(numSpaces=Math.round(Math.min((max-min)/spacing,maxTicks)),spacing=(max-min)/numSpaces,niceMin=min,niceMax=max):countDefined?(niceMin=minDefined?min:niceMin,niceMax=maxDefined?max:niceMax,numSpaces=count-1,spacing=(niceMax-niceMin)/numSpaces):(numSpaces=(niceMax-niceMin)/spacing,numSpaces=almostEquals(numSpaces,Math.round(numSpaces),spacing/1e3)?Math.round(numSpaces):Math.ceil(numSpaces));const decimalPlaces=Math.max(_decimalPlaces(spacing),_decimalPlaces(niceMin));factor=Math.pow(10,isNullOrUndef(precision)?decimalPlaces:precision),niceMin=Math.round(niceMin*factor)/factor,niceMax=Math.round(niceMax*factor)/factor;let j=0;for(minDefined&&(includeBounds&&niceMin!==min?(ticks.push({value:min}),niceMin0?value:null;this._zero=!0}determineDataLimits(){const{min:min,max:max}=this.getMinMax(!0);this.min=isNumberFinite(min)?Math.max(0,min):null,this.max=isNumberFinite(max)?Math.max(0,max):null,this.options.beginAtZero&&(this._zero=!0),this.handleTickRangeOptions()}handleTickRangeOptions(){const{minDefined:minDefined,maxDefined:maxDefined}=this.getUserBounds();let min=this.min,max=this.max;const setMin=v=>min=minDefined?min:v,setMax=v=>max=maxDefined?max:v,exp=(v,m)=>Math.pow(10,Math.floor(log10(v))+m);min===max&&(min<=0?(setMin(1),setMax(10)):(setMin(exp(min,-1)),setMax(exp(max,1)))),min<=0&&setMin(exp(max,-1)),max<=0&&setMax(exp(min,1)),this._zero&&this.min!==this._suggestedMin&&min===exp(this.min,0)&&setMin(exp(min,-1)),this.min=min,this.max=max}buildTicks(){const opts=this.options,ticks=function(generationOptions,dataRange){const endExp=Math.floor(log10(dataRange.max)),endSignificand=Math.ceil(dataRange.max/Math.pow(10,endExp)),ticks=[];let tickVal=finiteOrDefault(generationOptions.min,Math.pow(10,Math.floor(log10(dataRange.min)))),exp=Math.floor(log10(tickVal)),significand=Math.floor(tickVal/Math.pow(10,exp)),precision=exp<0?Math.pow(10,Math.abs(exp)):1;do{ticks.push({value:tickVal,major:isMajor(tickVal)}),++significand,10===significand&&(significand=1,++exp,precision=exp>=0?1:precision),tickVal=Math.round(significand*Math.pow(10,exp)*precision)/precision}while(expmax?{start:pos-size,end:pos}:{start:pos,end:pos+size}}function fitWithPointLabels(scale){const orig={l:scale.left+scale._padding.left,r:scale.right-scale._padding.right,t:scale.top+scale._padding.top,b:scale.bottom-scale._padding.bottom},limits=Object.assign({},orig),labelSizes=[],padding=[],valueCount=scale._pointLabels.length,pointLabelOpts=scale.options.pointLabels,additionalAngle=pointLabelOpts.centerPointLabels?PI/valueCount:0;for(let i=0;iorig.r&&(x=(hLimits.end-orig.r)/sin,limits.r=Math.max(limits.r,orig.r+x)),vLimits.startorig.b&&(y=(vLimits.end-orig.b)/cos,limits.b=Math.max(limits.b,orig.b+y))}function getTextAlignForAngle(angle){return 0===angle||180===angle?"center":angle<180?"left":"right"}function leftForTextAlign(x,w,align){return"right"===align?x-=w:"center"===align&&(x-=w/2),x}function yForAngle(y,h,angle){return 90===angle||270===angle?y-=h/2:(angle>270||angle<90)&&(y-=h),y}function pathRadiusLine(scale,radius,circular,labelCount){const{ctx:ctx}=scale;if(circular)ctx.arc(scale.xCenter,scale.yCenter,radius,0,TAU);else{let pointPosition=scale.getPointPosition(0,radius);ctx.moveTo(pointPosition.x,pointPosition.y);for(let i=1;i{const label=callback(this.options.pointLabels.callback,[value,index],this);return label||0===label?label:""})).filter(((v,i)=>this.chart.getDataVisibility(i)))}fit(){const opts=this.options;opts.display&&opts.pointLabels.display?fitWithPointLabels(this):this.setCenterPoint(0,0,0,0)}setCenterPoint(leftMovement,rightMovement,topMovement,bottomMovement){this.xCenter+=Math.floor((leftMovement-rightMovement)/2),this.yCenter+=Math.floor((topMovement-bottomMovement)/2),this.drawingArea-=Math.min(this.drawingArea/2,Math.max(leftMovement,rightMovement,topMovement,bottomMovement))}getIndexAngle(index){return _normalizeAngle(index*(TAU/(this._pointLabels.length||1))+toRadians(this.options.startAngle||0))}getDistanceFromCenterForValue(value){if(isNullOrUndef(value))return NaN;const scalingFactor=this.drawingArea/(this.max-this.min);return this.options.reverse?(this.max-value)*scalingFactor:(value-this.min)*scalingFactor}getValueForDistanceFromCenter(distance){if(isNullOrUndef(distance))return NaN;const scaledDistance=distance/(this.drawingArea/(this.max-this.min));return this.options.reverse?this.max-scaledDistance:this.min+scaledDistance}getPointLabelContext(index){const pointLabels=this._pointLabels||[];if(index>=0&&index2&&void 0!==arguments[2]?arguments[2]:0;const angle=this.getIndexAngle(index)-HALF_PI+additionalAngle;return{x:Math.cos(angle)*distanceFromCenter+this.xCenter,y:Math.sin(angle)*distanceFromCenter+this.yCenter,angle:angle}}getPointPositionForValue(index,value){return this.getPointPosition(index,this.getDistanceFromCenterForValue(value))}getBasePosition(index){return this.getPointPositionForValue(index||0,this.getBaseValue())}getPointLabelPosition(index){const{left:left,top:top,right:right,bottom:bottom}=this._pointLabelItems[index];return{left:left,top:top,right:right,bottom:bottom}}drawBackground(){const{backgroundColor:backgroundColor,grid:{circular:circular}}=this.options;if(backgroundColor){const ctx=this.ctx;ctx.save(),ctx.beginPath(),pathRadiusLine(this,this.getDistanceFromCenterForValue(this._endValue),circular,this._pointLabels.length),ctx.closePath(),ctx.fillStyle=backgroundColor,ctx.fill(),ctx.restore()}}drawGrid(){const ctx=this.ctx,opts=this.options,{angleLines:angleLines,grid:grid}=opts,labelCount=this._pointLabels.length;let i,offset,position;if(opts.pointLabels.display&&function(scale,labelCount){const{ctx:ctx,options:{pointLabels:pointLabels}}=scale;for(let i=labelCount-1;i>=0;i--){const optsAtIndex=pointLabels.setContext(scale.getPointLabelContext(i)),plFont=toFont(optsAtIndex.font),{x:x,y:y,textAlign:textAlign,left:left,top:top,right:right,bottom:bottom}=scale._pointLabelItems[i],{backdropColor:backdropColor}=optsAtIndex;if(!isNullOrUndef(backdropColor)){const borderRadius=toTRBLCorners(optsAtIndex.borderRadius),padding=toPadding(optsAtIndex.backdropPadding);ctx.fillStyle=backdropColor;const backdropLeft=left-padding.left,backdropTop=top-padding.top,backdropWidth=right-left+padding.width,backdropHeight=bottom-top+padding.height;Object.values(borderRadius).some((v=>0!==v))?(ctx.beginPath(),addRoundedRectPath(ctx,{x:backdropLeft,y:backdropTop,w:backdropWidth,h:backdropHeight,radius:borderRadius}),ctx.fill()):ctx.fillRect(backdropLeft,backdropTop,backdropWidth,backdropHeight)}renderText(ctx,scale._pointLabels[i],x,y+plFont.lineHeight/2,plFont,{color:optsAtIndex.color,textAlign:textAlign,textBaseline:"middle"})}}(this,labelCount),grid.display&&this.ticks.forEach(((tick,index)=>{0!==index&&(offset=this.getDistanceFromCenterForValue(tick.value),function(scale,gridLineOpts,radius,labelCount){const ctx=scale.ctx,circular=gridLineOpts.circular,{color:color,lineWidth:lineWidth}=gridLineOpts;!circular&&!labelCount||!color||!lineWidth||radius<0||(ctx.save(),ctx.strokeStyle=color,ctx.lineWidth=lineWidth,ctx.setLineDash(gridLineOpts.borderDash),ctx.lineDashOffset=gridLineOpts.borderDashOffset,ctx.beginPath(),pathRadiusLine(scale,radius,circular,labelCount),ctx.closePath(),ctx.stroke(),ctx.restore())}(this,grid.setContext(this.getContext(index-1)),offset,labelCount))})),angleLines.display){for(ctx.save(),i=labelCount-1;i>=0;i--){const optsAtIndex=angleLines.setContext(this.getPointLabelContext(i)),{color:color,lineWidth:lineWidth}=optsAtIndex;lineWidth&&color&&(ctx.lineWidth=lineWidth,ctx.strokeStyle=color,ctx.setLineDash(optsAtIndex.borderDash),ctx.lineDashOffset=optsAtIndex.borderDashOffset,offset=this.getDistanceFromCenterForValue(opts.ticks.reverse?this.min:this.max),position=this.getPointPosition(i,offset),ctx.beginPath(),ctx.moveTo(this.xCenter,this.yCenter),ctx.lineTo(position.x,position.y),ctx.stroke())}ctx.restore()}}drawBorder(){}drawLabels(){const ctx=this.ctx,opts=this.options,tickOpts=opts.ticks;if(!tickOpts.display)return;const startAngle=this.getIndexAngle(0);let offset,width;ctx.save(),ctx.translate(this.xCenter,this.yCenter),ctx.rotate(startAngle),ctx.textAlign="center",ctx.textBaseline="middle",this.ticks.forEach(((tick,index)=>{if(0===index&&!opts.reverse)return;const optsAtIndex=tickOpts.setContext(this.getContext(index)),tickFont=toFont(optsAtIndex.font);if(offset=this.getDistanceFromCenterForValue(this.ticks[index].value),optsAtIndex.showLabelBackdrop){ctx.font=tickFont.string,width=ctx.measureText(tick.label).width,ctx.fillStyle=optsAtIndex.backdropColor;const padding=toPadding(optsAtIndex.backdropPadding);ctx.fillRect(-width/2-padding.left,-offset-tickFont.size/2-padding.top,width+padding.width,tickFont.size+padding.height)}renderText(ctx,tick.label,0,-offset,tickFont,{color:optsAtIndex.color})})),ctx.restore()}drawTitle(){}}RadialLinearScale.id="radialLinear",RadialLinearScale.defaults={display:!0,animate:!0,position:"chartArea",angleLines:{display:!0,lineWidth:1,borderDash:[],borderDashOffset:0},grid:{circular:!1},startAngle:0,ticks:{showLabelBackdrop:!0,callback:Ticks.formatters.numeric},pointLabels:{backdropColor:void 0,backdropPadding:2,display:!0,font:{size:10},callback:label=>label,padding:5,centerPointLabels:!1}},RadialLinearScale.defaultRoutes={"angleLines.color":"borderColor","pointLabels.color":"color","ticks.color":"color"},RadialLinearScale.descriptors={angleLines:{_fallback:"grid"}};const INTERVALS={millisecond:{common:!0,size:1,steps:1e3},second:{common:!0,size:1e3,steps:60},minute:{common:!0,size:6e4,steps:60},hour:{common:!0,size:36e5,steps:24},day:{common:!0,size:864e5,steps:30},week:{common:!1,size:6048e5,steps:4},month:{common:!0,size:2628e6,steps:12},quarter:{common:!1,size:7884e6,steps:4},year:{common:!0,size:3154e7}},UNITS=Object.keys(INTERVALS);function sorter(a,b){return a-b}function parse(scale,input){if(isNullOrUndef(input))return null;const adapter=scale._adapter,{parser:parser,round:round,isoWeekday:isoWeekday}=scale._parseOpts;let value=input;return"function"==typeof parser&&(value=parser(value)),isNumberFinite(value)||(value="string"==typeof parser?adapter.parse(value,parser):adapter.parse(value)),null===value?null:(round&&(value="week"!==round||!isNumber(isoWeekday)&&!0!==isoWeekday?adapter.startOf(value,round):adapter.startOf(value,"isoWeek",isoWeekday)),+value)}function determineUnitForAutoTicks(minUnit,min,max,capacity){const ilen=UNITS.length;for(let i=UNITS.indexOf(minUnit);i=time?timestamps[lo]:timestamps[hi]]=!0}}else ticks[time]=!0}function ticksFromTimestamps(scale,values,majorUnit){const ticks=[],map={},ilen=values.length;let i,value;for(i=0;i=0&&(ticks[index].major=!0);return ticks}(scale,ticks,map,majorUnit):ticks}class TimeScale extends Scale{constructor(props){super(props),this._cache={data:[],labels:[],all:[]},this._unit="day",this._majorUnit=void 0,this._offsets={},this._normalized=!1,this._parseOpts=void 0}init(scaleOpts,opts){const time=scaleOpts.time||(scaleOpts.time={}),adapter=this._adapter=new _adapters._date(scaleOpts.adapters.date);mergeIf(time.displayFormats,adapter.formats()),this._parseOpts={parser:time.parser,round:time.round,isoWeekday:time.isoWeekday},super.init(scaleOpts),this._normalized=opts.normalized}parse(raw,index){return void 0===raw?null:parse(this,raw)}beforeLayout(){super.beforeLayout(),this._cache={data:[],labels:[],all:[]}}determineDataLimits(){const options=this.options,adapter=this._adapter,unit=options.time.unit||"day";let{min:min,max:max,minDefined:minDefined,maxDefined:maxDefined}=this.getUserBounds();function _applyBounds(bounds){minDefined||isNaN(bounds.min)||(min=Math.min(min,bounds.min)),maxDefined||isNaN(bounds.max)||(max=Math.max(max,bounds.max))}minDefined&&maxDefined||(_applyBounds(this._getLabelBounds()),"ticks"===options.bounds&&"labels"===options.ticks.source||_applyBounds(this.getMinMax(!1))),min=isNumberFinite(min)&&!isNaN(min)?min:+adapter.startOf(Date.now(),unit),max=isNumberFinite(max)&&!isNaN(max)?max:+adapter.endOf(Date.now(),unit)+1,this.min=Math.min(min,max-1),this.max=Math.max(min+1,max)}_getLabelBounds(){const arr=this.getLabelTimestamps();let min=Number.POSITIVE_INFINITY,max=Number.NEGATIVE_INFINITY;return arr.length&&(min=arr[0],max=arr[arr.length-1]),{min:min,max:max}}buildTicks(){const options=this.options,timeOpts=options.time,tickOpts=options.ticks,timestamps="labels"===tickOpts.source?this.getLabelTimestamps():this._generate();"ticks"===options.bounds&×tamps.length&&(this.min=this._userMin||timestamps[0],this.max=this._userMax||timestamps[timestamps.length-1]);const min=this.min,ticks=_filterBetween(timestamps,min,this.max);return this._unit=timeOpts.unit||(tickOpts.autoSkip?determineUnitForAutoTicks(timeOpts.minUnit,this.min,this.max,this._getLabelCapacity(min)):function(scale,numTicks,minUnit,min,max){for(let i=UNITS.length-1;i>=UNITS.indexOf(minUnit);i--){const unit=UNITS[i];if(INTERVALS[unit].common&&scale._adapter.diff(max,min,unit)>=numTicks-1)return unit}return UNITS[minUnit?UNITS.indexOf(minUnit):0]}(this,ticks.length,timeOpts.minUnit,this.min,this.max)),this._majorUnit=tickOpts.major.enabled&&"year"!==this._unit?function(unit){for(let i=UNITS.indexOf(unit)+1,ilen=UNITS.length;i+tick.value)))}initOffsets(timestamps){let first,last,start=0,end=0;this.options.offset&×tamps.length&&(first=this.getDecimalForValue(timestamps[0]),start=1===timestamps.length?1-first:(this.getDecimalForValue(timestamps[1])-first)/2,last=this.getDecimalForValue(timestamps[timestamps.length-1]),end=1===timestamps.length?last:(last-this.getDecimalForValue(timestamps[timestamps.length-2]))/2);const limit=timestamps.length<3?.5:.25;start=_limitValue(start,0,limit),end=_limitValue(end,0,limit),this._offsets={start:start,end:end,factor:1/(start+1+end)}}_generate(){const adapter=this._adapter,min=this.min,max=this.max,options=this.options,timeOpts=options.time,minor=timeOpts.unit||determineUnitForAutoTicks(timeOpts.minUnit,min,max,this._getLabelCapacity(min)),stepSize=valueOrDefault(timeOpts.stepSize,1),weekday="week"===minor&&timeOpts.isoWeekday,hasWeekday=isNumber(weekday)||!0===weekday,ticks={};let time,count,first=min;if(hasWeekday&&(first=+adapter.startOf(first,"isoWeek",weekday)),first=+adapter.startOf(first,hasWeekday?"day":minor),adapter.diff(max,min,minor)>1e5*stepSize)throw new Error(min+" and "+max+" are too far apart with stepSize of "+stepSize+" "+minor);const timestamps="data"===options.ticks.source&&this.getDataTimestamps();for(time=first,count=0;timea-b)).map((x=>+x))}getLabelForValue(value){const adapter=this._adapter,timeOpts=this.options.time;return timeOpts.tooltipFormat?adapter.format(value,timeOpts.tooltipFormat):adapter.format(value,timeOpts.displayFormats.datetime)}_tickFormatFunction(time,index,ticks,format){const options=this.options,formats=options.time.displayFormats,unit=this._unit,majorUnit=this._majorUnit,minorFormat=unit&&formats[unit],majorFormat=majorUnit&&formats[majorUnit],tick=ticks[index],major=majorUnit&&majorFormat&&tick&&tick.major,label=this._adapter.format(time,format||(major?majorFormat:minorFormat)),formatter=options.ticks.callback;return formatter?callback(formatter,[label,index,ticks],this):label}generateTickLabels(ticks){let i,ilen,tick;for(i=0,ilen=ticks.length;i0?capacity:1}getDataTimestamps(){let i,ilen,timestamps=this._cache.data||[];if(timestamps.length)return timestamps;const metas=this.getMatchingVisibleMetas();if(this._normalized&&metas.length)return this._cache.data=metas[0].controller.getAllParsedValues(this);for(i=0,ilen=metas.length;i=table[lo].pos&&val<=table[hi].pos&&({lo:lo,hi:hi}=_lookupByKey(table,"pos",val)),({pos:prevSource,time:prevTarget}=table[lo]),({pos:nextSource,time:nextTarget}=table[hi])):(val>=table[lo].time&&val<=table[hi].time&&({lo:lo,hi:hi}=_lookupByKey(table,"time",val)),({time:prevSource,pos:prevTarget}=table[lo]),({time:nextSource,pos:nextTarget}=table[hi]));const span=nextSource-prevSource;return span?prevTarget+(nextTarget-prevTarget)*(val-prevSource)/span:prevTarget}TimeScale.id="time",TimeScale.defaults={bounds:"data",adapters:{},time:{parser:!1,unit:!1,round:!1,isoWeekday:!1,minUnit:"millisecond",displayFormats:{}},ticks:{source:"auto",major:{enabled:!1}}};class TimeSeriesScale extends TimeScale{constructor(props){super(props),this._table=[],this._minPos=void 0,this._tableRange=void 0}initOffsets(){const timestamps=this._getTimestampsForTable(),table=this._table=this.buildLookupTable(timestamps);this._minPos=interpolate(table,this.min),this._tableRange=interpolate(table,this.max)-this._minPos,super.initOffsets(timestamps)}buildLookupTable(timestamps){const{min:min,max:max}=this,items=[],table=[];let i,ilen,prev,curr,next;for(i=0,ilen=timestamps.length;i=min&&curr<=max&&items.push(curr);if(items.length<2)return[{time:min,pos:0},{time:max,pos:1}];for(i=0,ilen=items.length;i{let id=0;return()=>id++})();function isNullOrUndef(value){return null==value}function isArray(value){if(Array.isArray&&Array.isArray(value))return!0;const type=Object.prototype.toString.call(value);return"[object"===type.slice(0,7)&&"Array]"===type.slice(-6)}function isObject(value){return null!==value&&"[object Object]"===Object.prototype.toString.call(value)}function isNumberFinite(value){return("number"==typeof value||value instanceof Number)&&isFinite(+value)}function finiteOrDefault(value,defaultValue){return isNumberFinite(value)?value:defaultValue}function valueOrDefault(value,defaultValue){return void 0===value?defaultValue:value}const toPercentage=(value,dimension)=>"string"==typeof value&&value.endsWith("%")?parseFloat(value)/100:+value/dimension,toDimension=(value,dimension)=>"string"==typeof value&&value.endsWith("%")?parseFloat(value)/100*dimension:+value;function callback(fn,args,thisArg){if(fn&&"function"==typeof fn.call)return fn.apply(thisArg,args)}function each(loopable,fn,thisArg,reverse){let i,len,keys;if(isArray(loopable))if(len=loopable.length,reverse)for(i=len-1;i>=0;i--)fn.call(thisArg,loopable[i],i);else for(i=0;iv,x:o=>o.x,y:o=>o.y};function _splitKey(key){const parts=key.split("."),keys=[];let tmp="";for(const part of parts)tmp+=part,tmp.endsWith("\\")?tmp=tmp.slice(0,-1)+".":(keys.push(tmp),tmp="");return keys}function resolveObjectKey(obj,key){const resolver=keyResolvers[key]||(keyResolvers[key]=function(key){const keys=_splitKey(key);return obj=>{for(const k of keys){if(""===k)break;obj=obj&&obj[k]}return obj}}(key));return resolver(obj)}function _capitalize(str){return str.charAt(0).toUpperCase()+str.slice(1)}const defined=value=>void 0!==value,isFunction=value=>"function"==typeof value,setsEqual=(a,b)=>{if(a.size!==b.size)return!1;for(const item of a)if(!b.has(item))return!1;return!0};function _isClickEvent(e){return"mouseup"===e.type||"click"===e.type||"contextmenu"===e.type}const PI=Math.PI,TAU=2*PI,PITAU=TAU+PI,INFINITY=Number.POSITIVE_INFINITY,RAD_PER_DEG=PI/180,HALF_PI=PI/2,QUARTER_PI=PI/4,TWO_THIRDS_PI=2*PI/3,log10=Math.log10,sign=Math.sign;function almostEquals(x,y,epsilon){return Math.abs(x-y)a-b)).pop(),result}function isNumber(n){return!isNaN(parseFloat(n))&&isFinite(n)}function almostWhole(x,epsilon){const rounded=Math.round(x);return rounded-epsilon<=x&&rounded+epsilon>=x}function _setMinAndMaxByKey(array,target,property){let i,ilen,value;for(i=0,ilen=array.length;iangleToEnd&&startToAngle3&&void 0!==arguments[3]?arguments[3]:1e-6;return value>=Math.min(start,end)-epsilon&&value<=Math.max(start,end)+epsilon}function _lookup(table,value,cmp){cmp=cmp||(index=>table[index]1;)mid=lo+hi>>1,cmp(mid)?lo=mid:hi=mid;return{lo:lo,hi:hi}}const _lookupByKey=(table,key,value,last)=>_lookup(table,value,last?index=>{const ti=table[index][key];return titable[index][key]_lookup(table,value,(index=>table[index][key]>=value));function _filterBetween(values,min,max){let start=0,end=values.length;for(;startstart&&values[end-1]>max;)end--;return start>0||end{const method="_onData"+_capitalize(key),base=array[key];Object.defineProperty(array,key,{configurable:!0,enumerable:!1,value(){for(var _len=arguments.length,args=new Array(_len),_key=0;_key<_len;_key++)args[_key]=arguments[_key];const res=base.apply(this,args);return array._chartjs.listeners.forEach((object=>{"function"==typeof object[method]&&object[method](...args)})),res}})})))}function unlistenArrayEvents(array,listener){const stub=array._chartjs;if(!stub)return;const listeners=stub.listeners,index=listeners.indexOf(listener);-1!==index&&listeners.splice(index,1),listeners.length>0||(arrayEvents.forEach((key=>{delete array[key]})),delete array._chartjs)}function _arrayUnique(items){const set=new Set;let i,ilen;for(i=0,ilen=items.length;i{ticking=!1,fn.apply(thisArg,argsToUse)})))}}function debounce(fn,delay){let timeout;return function(){for(var _len3=arguments.length,args=new Array(_len3),_key3=0;_key3<_len3;_key3++)args[_key3]=arguments[_key3];return delay?(clearTimeout(timeout),timeout=setTimeout(fn,delay,args)):fn.apply(this,args),delay}}const _toLeftRightCenter=align=>"start"===align?"left":"end"===align?"right":"center",_alignStartEnd=(align,start,end)=>"start"===align?start:"end"===align?end:(start+end)/2,_textX=(align,left,right,rtl)=>align===(rtl?"left":"right")?right:"center"===align?(left+right)/2:left;function _getStartAndCountOfVisiblePoints(meta,points,animationsDisabled){const pointCount=points.length;let start=0,count=pointCount;if(meta._sorted){const{iScale:iScale,_parsed:_parsed}=meta,axis=iScale.axis,{min:min,max:max,minDefined:minDefined,maxDefined:maxDefined}=iScale.getUserBounds();minDefined&&(start=_limitValue(Math.min(_lookupByKey(_parsed,iScale.axis,min).lo,animationsDisabled?pointCount:_lookupByKey(points,axis,iScale.getPixelForValue(min)).lo),0,pointCount-1)),count=maxDefined?_limitValue(Math.max(_lookupByKey(_parsed,iScale.axis,max,!0).hi+1,animationsDisabled?0:_lookupByKey(points,axis,iScale.getPixelForValue(max),!0).hi+1),start,pointCount)-start:pointCount-start}return{start:start,count:count}}function _scaleRangesChanged(meta){const{xScale:xScale,yScale:yScale,_scaleRanges:_scaleRanges}=meta,newRanges={xmin:xScale.min,xmax:xScale.max,ymin:yScale.min,ymax:yScale.max};if(!_scaleRanges)return meta._scaleRanges=newRanges,!0;const changed=_scaleRanges.xmin!==xScale.min||_scaleRanges.xmax!==xScale.max||_scaleRanges.ymin!==yScale.min||_scaleRanges.ymax!==yScale.max;return Object.assign(_scaleRanges,newRanges),changed}var animator=new class{constructor(){this._request=null,this._charts=new Map,this._running=!1,this._lastDate=void 0}_notify(chart,anims,date,type){const callbacks=anims.listeners[type],numSteps=anims.duration;callbacks.forEach((fn=>fn({chart:chart,initial:anims.initial,numSteps:numSteps,currentStep:Math.min(date-anims.start,numSteps)})))}_refresh(){this._request||(this._running=!0,this._request=requestAnimFrame.call(window,(()=>{this._update(),this._request=null,this._running&&this._refresh()})))}_update(){let date=arguments.length>0&&void 0!==arguments[0]?arguments[0]:Date.now(),remaining=0;this._charts.forEach(((anims,chart)=>{if(!anims.running||!anims.items.length)return;const items=anims.items;let item,i=items.length-1,draw=!1;for(;i>=0;--i)item=items[i],item._active?(item._total>anims.duration&&(anims.duration=item._total),item.tick(date),draw=!0):(items[i]=items[items.length-1],items.pop());draw&&(chart.draw(),this._notify(chart,anims,date,"progress")),items.length||(anims.running=!1,this._notify(chart,anims,date,"complete"),anims.initial=!1),remaining+=items.length})),this._lastDate=date,0===remaining&&(this._running=!1)}_getAnims(chart){const charts=this._charts;let anims=charts.get(chart);return anims||(anims={running:!1,initial:!0,items:[],listeners:{complete:[],progress:[]}},charts.set(chart,anims)),anims}listen(chart,event,cb){this._getAnims(chart).listeners[event].push(cb)}add(chart,items){items&&items.length&&this._getAnims(chart).items.push(...items)}has(chart){return this._getAnims(chart).items.length>0}start(chart){const anims=this._charts.get(chart);anims&&(anims.running=!0,anims.start=Date.now(),anims.duration=anims.items.reduce(((acc,cur)=>Math.max(acc,cur._duration)),0),this._refresh())}running(chart){if(!this._running)return!1;const anims=this._charts.get(chart);return!!(anims&&anims.running&&anims.items.length)}stop(chart){const anims=this._charts.get(chart);if(!anims||!anims.items.length)return;const items=anims.items;let i=items.length-1;for(;i>=0;--i)items[i].cancel();anims.items=[],this._notify(chart,anims,Date.now(),"complete")}remove(chart){return this._charts.delete(chart)}};function round(v){return v+.5|0}const lim=(v,l,h)=>Math.max(Math.min(v,h),l);function p2b(v){return lim(round(2.55*v),0,255)}function n2b(v){return lim(round(255*v),0,255)}function b2n(v){return lim(round(v/2.55)/100,0,1)}function n2p(v){return lim(round(100*v),0,100)}const map$1={0:0,1:1,2:2,3:3,4:4,5:5,6:6,7:7,8:8,9:9,A:10,B:11,C:12,D:13,E:14,F:15,a:10,b:11,c:12,d:13,e:14,f:15},hex=[..."0123456789ABCDEF"],h1=b=>hex[15&b],h2=b=>hex[(240&b)>>4]+hex[15&b],eq=b=>(240&b)>>4==(15&b);function hexString(v){var f=(v=>eq(v.r)&&eq(v.g)&&eq(v.b)&&eq(v.a))(v)?h1:h2;return v?"#"+f(v.r)+f(v.g)+f(v.b)+((a,f)=>a<255?f(a):"")(v.a,f):void 0}const HUE_RE=/^(hsla?|hwb|hsv)\(\s*([-+.e\d]+)(?:deg)?[\s,]+([-+.e\d]+)%[\s,]+([-+.e\d]+)%(?:[\s,]+([-+.e\d]+)(%)?)?\s*\)$/;function hsl2rgbn(h,s,l){const a=s*Math.min(l,1-l),f=function(n){let k=arguments.length>1&&void 0!==arguments[1]?arguments[1]:(n+h/30)%12;return l-a*Math.max(Math.min(k-3,9-k,1),-1)};return[f(0),f(8),f(4)]}function hsv2rgbn(h,s,v){const f=function(n){let k=arguments.length>1&&void 0!==arguments[1]?arguments[1]:(n+h/60)%6;return v-v*s*Math.max(Math.min(k,4-k,1),0)};return[f(5),f(3),f(1)]}function hwb2rgbn(h,w,b){const rgb=hsl2rgbn(h,1,.5);let i;for(w+b>1&&(i=1/(w+b),w*=i,b*=i),i=0;i<3;i++)rgb[i]*=1-w-b,rgb[i]+=w;return rgb}function rgb2hsl(v){const r=v.r/255,g=v.g/255,b=v.b/255,max=Math.max(r,g,b),min=Math.min(r,g,b),l=(max+min)/2;let h,s,d;return max!==min&&(d=max-min,s=l>.5?d/(2-max-min):d/(max+min),h=function(r,g,b,d,max){return r===max?(g-b)/d+(g>16&255,k>>8&255,255&k]}return unpacked}(),names.transparent=[0,0,0,0]);const a=names[str.toLowerCase()];return a&&{r:a[0],g:a[1],b:a[2],a:4===a.length?a[3]:255}}const RGB_RE=/^rgba?\(\s*([-+.\d]+)(%)?[\s,]+([-+.e\d]+)(%)?[\s,]+([-+.e\d]+)(%)?(?:[\s,/]+([-+.e\d]+)(%)?)?\s*\)$/,to=v=>v<=.0031308?12.92*v:1.055*Math.pow(v,1/2.4)-.055,from=v=>v<=.04045?v/12.92:Math.pow((v+.055)/1.055,2.4);function modHSL(v,i,ratio){if(v){let tmp=rgb2hsl(v);tmp[i]=Math.max(0,Math.min(tmp[i]+tmp[i]*ratio,0===i?360:1)),tmp=hsl2rgb(tmp),v.r=tmp[0],v.g=tmp[1],v.b=tmp[2]}}function clone(v,proto){return v?Object.assign(proto||{},v):v}function fromObject(input){var v={r:0,g:0,b:0,a:255};return Array.isArray(input)?input.length>=3&&(v={r:input[0],g:input[1],b:input[2],a:255},input.length>3&&(v.a=n2b(input[3]))):(v=clone(input,{r:0,g:0,b:0,a:1})).a=n2b(v.a),v}function functionParse(str){return"r"===str.charAt(0)?function(str){const m=RGB_RE.exec(str);let r,g,b,a=255;if(m){if(m[7]!==r){const v=+m[7];a=m[8]?p2b(v):lim(255*v,0,255)}return r=+m[1],g=+m[3],b=+m[5],r=255&(m[2]?p2b(r):lim(r,0,255)),g=255&(m[4]?p2b(g):lim(g,0,255)),b=255&(m[6]?p2b(b):lim(b,0,255)),{r:r,g:g,b:b,a:a}}}(str):hueParse(str)}class Color{constructor(input){if(input instanceof Color)return input;const type=typeof input;let v;var str,ret,len;"object"===type?v=fromObject(input):"string"===type&&(len=(str=input).length,"#"===str[0]&&(4===len||5===len?ret={r:255&17*map$1[str[1]],g:255&17*map$1[str[2]],b:255&17*map$1[str[3]],a:5===len?17*map$1[str[4]]:255}:7!==len&&9!==len||(ret={r:map$1[str[1]]<<4|map$1[str[2]],g:map$1[str[3]]<<4|map$1[str[4]],b:map$1[str[5]]<<4|map$1[str[6]],a:9===len?map$1[str[7]]<<4|map$1[str[8]]:255})),v=ret||nameParse(input)||functionParse(input)),this._rgb=v,this._valid=!!v}get valid(){return this._valid}get rgb(){var v=clone(this._rgb);return v&&(v.a=b2n(v.a)),v}set rgb(obj){this._rgb=fromObject(obj)}rgbString(){return this._valid?(v=this._rgb)&&(v.a<255?"rgba(".concat(v.r,", ").concat(v.g,", ").concat(v.b,", ").concat(b2n(v.a),")"):"rgb(".concat(v.r,", ").concat(v.g,", ").concat(v.b,")")):void 0;var v}hexString(){return this._valid?hexString(this._rgb):void 0}hslString(){return this._valid?function(v){if(!v)return;const a=rgb2hsl(v),h=a[0],s=n2p(a[1]),l=n2p(a[2]);return v.a<255?"hsla(".concat(h,", ").concat(s,"%, ").concat(l,"%, ").concat(b2n(v.a),")"):"hsl(".concat(h,", ").concat(s,"%, ").concat(l,"%)")}(this._rgb):void 0}mix(color,weight){if(color){const c1=this.rgb,c2=color.rgb;let w2;const p=weight===w2?.5:weight,w=2*p-1,a=c1.a-c2.a,w1=((w*a==-1?w:(w+a)/(1+w*a))+1)/2;w2=1-w1,c1.r=255&w1*c1.r+w2*c2.r+.5,c1.g=255&w1*c1.g+w2*c2.g+.5,c1.b=255&w1*c1.b+w2*c2.b+.5,c1.a=p*c1.a+(1-p)*c2.a,this.rgb=c1}return this}interpolate(color,t){return color&&(this._rgb=function(rgb1,rgb2,t){const r=from(b2n(rgb1.r)),g=from(b2n(rgb1.g)),b=from(b2n(rgb1.b));return{r:n2b(to(r+t*(from(b2n(rgb2.r))-r))),g:n2b(to(g+t*(from(b2n(rgb2.g))-g))),b:n2b(to(b+t*(from(b2n(rgb2.b))-b))),a:rgb1.a+t*(rgb2.a-rgb1.a)}}(this._rgb,color._rgb,t)),this}clone(){return new Color(this.rgb)}alpha(a){return this._rgb.a=n2b(a),this}clearer(ratio){return this._rgb.a*=1-ratio,this}greyscale(){const rgb=this._rgb,val=round(.3*rgb.r+.59*rgb.g+.11*rgb.b);return rgb.r=rgb.g=rgb.b=val,this}opaquer(ratio){return this._rgb.a*=1+ratio,this}negate(){const v=this._rgb;return v.r=255-v.r,v.g=255-v.g,v.b=255-v.b,this}lighten(ratio){return modHSL(this._rgb,2,ratio),this}darken(ratio){return modHSL(this._rgb,2,-ratio),this}saturate(ratio){return modHSL(this._rgb,1,ratio),this}desaturate(ratio){return modHSL(this._rgb,1,-ratio),this}rotate(deg){return function(v,deg){var h=rgb2hsl(v);h[0]=hue(h[0]+deg),h=hsl2rgb(h),v.r=h[0],v.g=h[1],v.b=h[2]}(this._rgb,deg),this}}function isPatternOrGradient(value){if(value&&"object"==typeof value){const type=value.toString();return"[object CanvasPattern]"===type||"[object CanvasGradient]"===type}return!1}function color(value){return isPatternOrGradient(value)?value:new Color(value)}function getHoverColor(value){return isPatternOrGradient(value)?value:new Color(value).saturate(.5).darken(.1).hexString()}const numbers=["x","y","borderWidth","radius","tension"],colors=["color","borderColor","backgroundColor"],intlCache=new Map;function formatNumber(num,locale,options){return function(locale,options){options=options||{};const cacheKey=locale+JSON.stringify(options);let formatter=intlCache.get(cacheKey);return formatter||(formatter=new Intl.NumberFormat(locale,options),intlCache.set(cacheKey,formatter)),formatter}(locale,options).format(num)}const formatters={values:value=>isArray(value)?value:""+value,numeric(tickValue,index,ticks){if(0===tickValue)return"0";const locale=this.chart.options.locale;let notation,delta=tickValue;if(ticks.length>1){const maxTick=Math.max(Math.abs(ticks[0].value),Math.abs(ticks[ticks.length-1].value));(maxTick<1e-4||maxTick>1e15)&&(notation="scientific"),delta=function(tickValue,ticks){let delta=ticks.length>3?ticks[2].value-ticks[1].value:ticks[1].value-ticks[0].value;return Math.abs(delta)>=1&&tickValue!==Math.floor(tickValue)&&(delta=tickValue-Math.floor(tickValue)),delta}(tickValue,ticks)}const logDelta=log10(Math.abs(delta)),numDecimal=Math.max(Math.min(-1*Math.floor(logDelta),20),0),options={notation:notation,minimumFractionDigits:numDecimal,maximumFractionDigits:numDecimal};return Object.assign(options,this.options.ticks.format),formatNumber(tickValue,locale,options)},logarithmic(tickValue,index,ticks){if(0===tickValue)return"0";const remain=ticks[index].significand||tickValue/Math.pow(10,Math.floor(log10(tickValue)));return[1,2,3,5,10,15].includes(remain)||index>.8*ticks.length?formatters.numeric.call(this,tickValue,index,ticks):""}};var Ticks={formatters:formatters};const overrides=Object.create(null),descriptors=Object.create(null);function getScope$1(node,key){if(!key)return node;const keys=key.split(".");for(let i=0,n=keys.length;icontext.chart.platform.getDevicePixelRatio(),this.elements={},this.events=["mousemove","mouseout","click","touchstart","touchmove"],this.font={family:"'Helvetica Neue', 'Helvetica', 'Arial', sans-serif",size:12,style:"normal",lineHeight:1.2,weight:null},this.hover={},this.hoverBackgroundColor=(ctx,options)=>getHoverColor(options.backgroundColor),this.hoverBorderColor=(ctx,options)=>getHoverColor(options.borderColor),this.hoverColor=(ctx,options)=>getHoverColor(options.color),this.indexAxis="x",this.interaction={mode:"nearest",intersect:!0,includeInvisible:!1},this.maintainAspectRatio=!0,this.onHover=null,this.onClick=null,this.parsing=!0,this.plugins={},this.responsive=!0,this.scale=void 0,this.scales={},this.showLine=!0,this.drawActiveElementsOnTop=!0,this.describe(_descriptors),this.apply(_appliers)}set(scope,values){return set(this,scope,values)}get(scope){return getScope$1(this,scope)}describe(scope,values){return set(descriptors,scope,values)}override(scope,values){return set(overrides,scope,values)}route(scope,name,targetScope,targetName){const scopeObject=getScope$1(this,scope),targetScopeObject=getScope$1(this,targetScope),privateName="_"+name;Object.defineProperties(scopeObject,{[privateName]:{value:scopeObject[name],writable:!0},[name]:{enumerable:!0,get(){const local=this[privateName],target=targetScopeObject[targetName];return isObject(local)?Object.assign({},target,local):valueOrDefault(local,target)},set(value){this[privateName]=value}}})}apply(appliers){appliers.forEach((apply=>apply(this)))}}({_scriptable:name=>!name.startsWith("on"),_indexable:name=>"events"!==name,hover:{_fallback:"interaction"},interaction:{_scriptable:!1,_indexable:!1}},[function(defaults){defaults.set("animation",{delay:void 0,duration:1e3,easing:"easeOutQuart",fn:void 0,from:void 0,loop:void 0,to:void 0,type:void 0}),defaults.describe("animation",{_fallback:!1,_indexable:!1,_scriptable:name=>"onProgress"!==name&&"onComplete"!==name&&"fn"!==name}),defaults.set("animations",{colors:{type:"color",properties:colors},numbers:{type:"number",properties:numbers}}),defaults.describe("animations",{_fallback:"animation"}),defaults.set("transitions",{active:{animation:{duration:400}},resize:{animation:{duration:0}},show:{animations:{colors:{from:"transparent"},visible:{type:"boolean",duration:0}}},hide:{animations:{colors:{to:"transparent"},visible:{type:"boolean",easing:"linear",fn:v=>0|v}}}})},function(defaults){defaults.set("layout",{autoPadding:!0,padding:{top:0,right:0,bottom:0,left:0}})},function(defaults){defaults.set("scale",{display:!0,offset:!1,reverse:!1,beginAtZero:!1,bounds:"ticks",grace:0,grid:{display:!0,lineWidth:1,drawOnChartArea:!0,drawTicks:!0,tickLength:8,tickWidth:(_ctx,options)=>options.lineWidth,tickColor:(_ctx,options)=>options.color,offset:!1},border:{display:!0,dash:[],dashOffset:0,width:1},title:{display:!1,text:"",padding:{top:4,bottom:4}},ticks:{minRotation:0,maxRotation:50,mirror:!1,textStrokeWidth:0,textStrokeColor:"",padding:3,display:!0,autoSkip:!0,autoSkipPadding:3,labelOffset:0,callback:Ticks.formatters.values,minor:{},major:{},align:"center",crossAlign:"near",showLabelBackdrop:!1,backdropColor:"rgba(255, 255, 255, 0.75)",backdropPadding:2}}),defaults.route("scale.ticks","color","","color"),defaults.route("scale.grid","color","","borderColor"),defaults.route("scale.border","color","","borderColor"),defaults.route("scale.title","color","","color"),defaults.describe("scale",{_fallback:!1,_scriptable:name=>!name.startsWith("before")&&!name.startsWith("after")&&"callback"!==name&&"parser"!==name,_indexable:name=>"borderDash"!==name&&"tickBorderDash"!==name&&"dash"!==name}),defaults.describe("scales",{_fallback:"scale"}),defaults.describe("scale.ticks",{_scriptable:name=>"backdropPadding"!==name&&"callback"!==name,_indexable:name=>"backdropPadding"!==name})}]);function _isDomSupported(){return"undefined"!=typeof window&&"undefined"!=typeof document}function _getParentNode(domNode){let parent=domNode.parentNode;return parent&&"[object ShadowRoot]"===parent.toString()&&(parent=parent.host),parent}function parseMaxStyle(styleValue,node,parentProperty){let valueInPixels;return"string"==typeof styleValue?(valueInPixels=parseInt(styleValue,10),-1!==styleValue.indexOf("%")&&(valueInPixels=valueInPixels/100*node.parentNode[parentProperty])):valueInPixels=styleValue,valueInPixels}const getComputedStyle=element=>element.ownerDocument.defaultView.getComputedStyle(element,null);function getStyle(el,property){return getComputedStyle(el).getPropertyValue(property)}const positions=["top","right","bottom","left"];function getPositionedStyle(styles,style,suffix){const result={};suffix=suffix?"-"+suffix:"";for(let i=0;i<4;i++){const pos=positions[i];result[pos]=parseFloat(styles[style+"-"+pos+suffix])||0}return result.width=result.left+result.right,result.height=result.top+result.bottom,result}function getRelativePosition(event,chart){if("native"in event)return event;const{canvas:canvas,currentDevicePixelRatio:currentDevicePixelRatio}=chart,style=getComputedStyle(canvas),borderBox="border-box"===style.boxSizing,paddings=getPositionedStyle(style,"padding"),borders=getPositionedStyle(style,"border","width"),{x:x,y:y,box:box}=function(e,canvas){const touches=e.touches,source=touches&&touches.length?touches[0]:e,{offsetX:offsetX,offsetY:offsetY}=source;let x,y,box=!1;if(((x,y,target)=>(x>0||y>0)&&(!target||!target.shadowRoot))(offsetX,offsetY,e.target))x=offsetX,y=offsetY;else{const rect=canvas.getBoundingClientRect();x=source.clientX-rect.left,y=source.clientY-rect.top,box=!0}return{x:x,y:y,box:box}}(event,canvas),xOffset=paddings.left+(box&&borders.left),yOffset=paddings.top+(box&&borders.top);let{width:width,height:height}=chart;return borderBox&&(width-=paddings.width+borders.width,height-=paddings.height+borders.height),{x:Math.round((x-xOffset)/width*canvas.width/currentDevicePixelRatio),y:Math.round((y-yOffset)/height*canvas.height/currentDevicePixelRatio)}}const round1=v=>Math.round(10*v)/10;function getMaximumSize(canvas,bbWidth,bbHeight,aspectRatio){const style=getComputedStyle(canvas),margins=getPositionedStyle(style,"margin"),maxWidth=parseMaxStyle(style.maxWidth,canvas,"clientWidth")||INFINITY,maxHeight=parseMaxStyle(style.maxHeight,canvas,"clientHeight")||INFINITY,containerSize=function(canvas,width,height){let maxWidth,maxHeight;if(void 0===width||void 0===height){const container=_getParentNode(canvas);if(container){const rect=container.getBoundingClientRect(),containerStyle=getComputedStyle(container),containerBorder=getPositionedStyle(containerStyle,"border","width"),containerPadding=getPositionedStyle(containerStyle,"padding");width=rect.width-containerPadding.width-containerBorder.width,height=rect.height-containerPadding.height-containerBorder.height,maxWidth=parseMaxStyle(containerStyle.maxWidth,container,"clientWidth"),maxHeight=parseMaxStyle(containerStyle.maxHeight,container,"clientHeight")}else width=canvas.clientWidth,height=canvas.clientHeight}return{width:width,height:height,maxWidth:maxWidth||INFINITY,maxHeight:maxHeight||INFINITY}}(canvas,bbWidth,bbHeight);let{width:width,height:height}=containerSize;if("content-box"===style.boxSizing){const borders=getPositionedStyle(style,"border","width"),paddings=getPositionedStyle(style,"padding");width-=paddings.width+borders.width,height-=paddings.height+borders.height}return width=Math.max(0,width-margins.width),height=Math.max(0,aspectRatio?width/aspectRatio:height-margins.height),width=round1(Math.min(width,maxWidth,containerSize.maxWidth)),height=round1(Math.min(height,maxHeight,containerSize.maxHeight)),width&&!height&&(height=round1(width/2)),(void 0!==bbWidth||void 0!==bbHeight)&&aspectRatio&&containerSize.height&&height>containerSize.height&&(height=containerSize.height,width=round1(Math.floor(height*aspectRatio))),{width:width,height:height}}function retinaScale(chart,forceRatio,forceStyle){const pixelRatio=forceRatio||1,deviceHeight=Math.floor(chart.height*pixelRatio),deviceWidth=Math.floor(chart.width*pixelRatio);chart.height=Math.floor(chart.height),chart.width=Math.floor(chart.width);const canvas=chart.canvas;return canvas.style&&(forceStyle||!canvas.style.height&&!canvas.style.width)&&(canvas.style.height="".concat(chart.height,"px"),canvas.style.width="".concat(chart.width,"px")),(chart.currentDevicePixelRatio!==pixelRatio||canvas.height!==deviceHeight||canvas.width!==deviceWidth)&&(chart.currentDevicePixelRatio=pixelRatio,canvas.height=deviceHeight,canvas.width=deviceWidth,chart.ctx.setTransform(pixelRatio,0,0,pixelRatio,0,0),!0)}const supportsEventListenerOptions=function(){let passiveSupported=!1;try{const options={get passive(){return passiveSupported=!0,!1}};window.addEventListener("test",null,options),window.removeEventListener("test",null,options)}catch(e){}return passiveSupported}();function readUsedSize(element,property){const value=getStyle(element,property),matches=value&&value.match(/^(\d+)(\.\d+)?px$/);return matches?+matches[1]:void 0}function toFontString(font){return!font||isNullOrUndef(font.size)||isNullOrUndef(font.family)?null:(font.style?font.style+" ":"")+(font.weight?font.weight+" ":"")+font.size+"px "+font.family}function _measureText(ctx,data,gc,longest,string){let textWidth=data[string];return textWidth||(textWidth=data[string]=ctx.measureText(string).width,gc.push(string)),textWidth>longest&&(longest=textWidth),longest}function _longestText(ctx,font,arrayOfThings,cache){let data=(cache=cache||{}).data=cache.data||{},gc=cache.garbageCollect=cache.garbageCollect||[];cache.font!==font&&(data=cache.data={},gc=cache.garbageCollect=[],cache.font=font),ctx.save(),ctx.font=font;let longest=0;const ilen=arrayOfThings.length;let i,j,jlen,thing,nestedThing;for(i=0;iarrayOfThings.length){for(i=0;i0&&ctx.stroke()}}function _isPointInArea(point,area,margin){return margin=margin||.5,!area||point&&point.x>area.left-margin&&point.xarea.top-margin&&point.y5&&void 0!==arguments[5]?arguments[5]:{};const lines=isArray(text)?text:[text],stroke=opts.strokeWidth>0&&""!==opts.strokeColor;let i,line;for(ctx.save(),ctx.font=font.string,setRenderOpts(ctx,opts),i=0;i1&&void 0!==arguments[1]?arguments[1]:[""],rootScopes=arguments.length>2&&void 0!==arguments[2]?arguments[2]:scopes,fallback=arguments.length>3?arguments[3]:void 0,getTarget=arguments.length>4&&void 0!==arguments[4]?arguments[4]:()=>scopes[0];defined(fallback)||(fallback=_resolve("_fallback",scopes));const cache={[Symbol.toStringTag]:"Object",_cacheable:!0,_scopes:scopes,_rootScopes:rootScopes,_fallback:fallback,_getTarget:getTarget,override:scope=>_createResolver([scope,...scopes],prefixes,rootScopes,fallback)};return new Proxy(cache,{deleteProperty:(target,prop)=>(delete target[prop],delete target._keys,delete scopes[0][prop],!0),get:(target,prop)=>_cached(target,prop,(()=>_resolveWithPrefixes(prop,prefixes,scopes,target))),getOwnPropertyDescriptor:(target,prop)=>Reflect.getOwnPropertyDescriptor(target._scopes[0],prop),getPrototypeOf:()=>Reflect.getPrototypeOf(scopes[0]),has:(target,prop)=>getKeysFromAllScopes(target).includes(prop),ownKeys:target=>getKeysFromAllScopes(target),set(target,prop,value){const storage=target._storage||(target._storage=getTarget());return target[prop]=storage[prop]=value,delete target._keys,!0}})}function _attachContext(proxy,context,subProxy,descriptorDefaults){const cache={_cacheable:!1,_proxy:proxy,_context:context,_subProxy:subProxy,_stack:new Set,_descriptors:_descriptors(proxy,descriptorDefaults),setContext:ctx=>_attachContext(proxy,ctx,subProxy,descriptorDefaults),override:scope=>_attachContext(proxy.override(scope),context,subProxy,descriptorDefaults)};return new Proxy(cache,{deleteProperty:(target,prop)=>(delete target[prop],delete proxy[prop],!0),get:(target,prop,receiver)=>_cached(target,prop,(()=>function(target,prop,receiver){const{_proxy:_proxy,_context:_context,_subProxy:_subProxy,_descriptors:descriptors}=target;let value=_proxy[prop];return isFunction(value)&&descriptors.isScriptable(prop)&&(value=function(prop,value,target,receiver){const{_proxy:_proxy,_context:_context,_subProxy:_subProxy,_stack:_stack}=target;if(_stack.has(prop))throw new Error("Recursion detected: "+Array.from(_stack).join("->")+"->"+prop);return _stack.add(prop),value=value(_context,_subProxy||receiver),_stack.delete(prop),needsSubResolver(prop,value)&&(value=createSubResolver(_proxy._scopes,_proxy,prop,value)),value}(prop,value,target,receiver)),isArray(value)&&value.length&&(value=function(prop,value,target,isIndexable){const{_proxy:_proxy,_context:_context,_subProxy:_subProxy,_descriptors:descriptors}=target;if(defined(_context.index)&&isIndexable(prop))value=value[_context.index%value.length];else if(isObject(value[0])){const arr=value,scopes=_proxy._scopes.filter((s=>s!==arr));value=[];for(const item of arr){const resolver=createSubResolver(scopes,_proxy,prop,item);value.push(_attachContext(resolver,_context,_subProxy&&_subProxy[prop],descriptors))}}return value}(prop,value,target,descriptors.isIndexable)),needsSubResolver(prop,value)&&(value=_attachContext(value,_context,_subProxy&&_subProxy[prop],descriptors)),value}(target,prop,receiver))),getOwnPropertyDescriptor:(target,prop)=>target._descriptors.allKeys?Reflect.has(proxy,prop)?{enumerable:!0,configurable:!0}:void 0:Reflect.getOwnPropertyDescriptor(proxy,prop),getPrototypeOf:()=>Reflect.getPrototypeOf(proxy),has:(target,prop)=>Reflect.has(proxy,prop),ownKeys:()=>Reflect.ownKeys(proxy),set:(target,prop,value)=>(proxy[prop]=value,delete target[prop],!0)})}function _descriptors(proxy){let defaults=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{scriptable:!0,indexable:!0};const{_scriptable:_scriptable=defaults.scriptable,_indexable:_indexable=defaults.indexable,_allKeys:_allKeys=defaults.allKeys}=proxy;return{allKeys:_allKeys,scriptable:_scriptable,indexable:_indexable,isScriptable:isFunction(_scriptable)?_scriptable:()=>_scriptable,isIndexable:isFunction(_indexable)?_indexable:()=>_indexable}}const readKey=(prefix,name)=>prefix?prefix+_capitalize(name):name,needsSubResolver=(prop,value)=>isObject(value)&&"adapters"!==prop&&(null===Object.getPrototypeOf(value)||value.constructor===Object);function _cached(target,prop,resolve){if(Object.prototype.hasOwnProperty.call(target,prop))return target[prop];const value=resolve();return target[prop]=value,value}function resolveFallback(fallback,prop,value){return isFunction(fallback)?fallback(prop,value):fallback}const getScope=(key,parent)=>!0===key?parent:"string"==typeof key?resolveObjectKey(parent,key):void 0;function addScopes(set,parentScopes,key,parentFallback,value){for(const parent of parentScopes){const scope=getScope(key,parent);if(scope){set.add(scope);const fallback=resolveFallback(scope._fallback,key,value);if(defined(fallback)&&fallback!==key&&fallback!==parentFallback)return fallback}else if(!1===scope&&defined(parentFallback)&&key!==parentFallback)return null}return!1}function createSubResolver(parentScopes,resolver,prop,value){const rootScopes=resolver._rootScopes,fallback=resolveFallback(resolver._fallback,prop,value),allScopes=[...parentScopes,...rootScopes],set=new Set;set.add(value);let key=addScopesFromKey(set,allScopes,prop,fallback||prop,value);return null!==key&&(!defined(fallback)||fallback===prop||(key=addScopesFromKey(set,allScopes,fallback,key,value),null!==key))&&_createResolver(Array.from(set),[""],rootScopes,fallback,(()=>function(resolver,prop,value){const parent=resolver._getTarget();prop in parent||(parent[prop]={});const target=parent[prop];return isArray(target)&&isObject(value)?value:target||{}}(resolver,prop,value)))}function addScopesFromKey(set,allScopes,key,fallback,item){for(;key;)key=addScopes(set,allScopes,key,fallback,item);return key}function _resolveWithPrefixes(prop,prefixes,scopes,proxy){let value;for(const prefix of prefixes)if(value=_resolve(readKey(prefix,prop),scopes),defined(value))return needsSubResolver(prop,value)?createSubResolver(scopes,proxy,prop,value):value}function _resolve(key,scopes){for(const scope of scopes){if(!scope)continue;const value=scope[key];if(defined(value))return value}}function getKeysFromAllScopes(target){let keys=target._keys;return keys||(keys=target._keys=function(scopes){const set=new Set;for(const scope of scopes)for(const key of Object.keys(scope).filter((k=>!k.startsWith("_"))))set.add(key);return Array.from(set)}(target._scopes)),keys}function _parseObjectDataRadialScale(meta,data,start,count){const{iScale:iScale}=meta,{key:key="r"}=this._parsing,parsed=new Array(count);let i,ilen,index,item;for(i=0,ilen=count;ii"x"===indexAxis?"y":"x";function splineCurve(firstPoint,middlePoint,afterPoint,t){const previous=firstPoint.skip?middlePoint:firstPoint,current=middlePoint,next=afterPoint.skip?middlePoint:afterPoint,d01=distanceBetweenPoints(current,previous),d12=distanceBetweenPoints(next,current);let s01=d01/(d01+d12),s12=d12/(d01+d12);s01=isNaN(s01)?0:s01,s12=isNaN(s12)?0:s12;const fa=t*s01,fb=t*s12;return{previous:{x:current.x-fa*(next.x-previous.x),y:current.y-fa*(next.y-previous.y)},next:{x:current.x+fb*(next.x-previous.x),y:current.y+fb*(next.y-previous.y)}}}function monotoneAdjust(points,deltaK,mK){const pointsLen=points.length;let alphaK,betaK,tauK,squaredMagnitude,pointCurrent,pointAfter=getPoint(points,0);for(let i=0;i2&&void 0!==arguments[2]?arguments[2]:"x";const valueAxis=getValueAxis(indexAxis),pointsLen=points.length;let delta,pointBefore,pointCurrent,pointAfter=getPoint(points,0);for(let i=0;i1&&void 0!==arguments[1]?arguments[1]:"x";const valueAxis=getValueAxis(indexAxis),pointsLen=points.length,deltaK=Array(pointsLen).fill(0),mK=Array(pointsLen);let i,pointBefore,pointCurrent,pointAfter=getPoint(points,0);for(i=0;i!pt.skip))),"monotone"===options.cubicInterpolationMode)splineCurveMonotone(points,indexAxis);else{let prev=loop?points[points.length-1]:points[0];for(i=0,ilen=points.length;i0===t||1===t,elasticIn=(t,s,p)=>-Math.pow(2,10*(t-=1))*Math.sin((t-s)*TAU/p),elasticOut=(t,s,p)=>Math.pow(2,-10*t)*Math.sin((t-s)*TAU/p)+1,effects={linear:t=>t,easeInQuad:t=>t*t,easeOutQuad:t=>-t*(t-2),easeInOutQuad:t=>(t/=.5)<1?.5*t*t:-.5*(--t*(t-2)-1),easeInCubic:t=>t*t*t,easeOutCubic:t=>(t-=1)*t*t+1,easeInOutCubic:t=>(t/=.5)<1?.5*t*t*t:.5*((t-=2)*t*t+2),easeInQuart:t=>t*t*t*t,easeOutQuart:t=>-((t-=1)*t*t*t-1),easeInOutQuart:t=>(t/=.5)<1?.5*t*t*t*t:-.5*((t-=2)*t*t*t-2),easeInQuint:t=>t*t*t*t*t,easeOutQuint:t=>(t-=1)*t*t*t*t+1,easeInOutQuint:t=>(t/=.5)<1?.5*t*t*t*t*t:.5*((t-=2)*t*t*t*t+2),easeInSine:t=>1-Math.cos(t*HALF_PI),easeOutSine:t=>Math.sin(t*HALF_PI),easeInOutSine:t=>-.5*(Math.cos(PI*t)-1),easeInExpo:t=>0===t?0:Math.pow(2,10*(t-1)),easeOutExpo:t=>1===t?1:1-Math.pow(2,-10*t),easeInOutExpo:t=>atEdge(t)?t:t<.5?.5*Math.pow(2,10*(2*t-1)):.5*(2-Math.pow(2,-10*(2*t-1))),easeInCirc:t=>t>=1?t:-(Math.sqrt(1-t*t)-1),easeOutCirc:t=>Math.sqrt(1-(t-=1)*t),easeInOutCirc:t=>(t/=.5)<1?-.5*(Math.sqrt(1-t*t)-1):.5*(Math.sqrt(1-(t-=2)*t)+1),easeInElastic:t=>atEdge(t)?t:elasticIn(t,.075,.3),easeOutElastic:t=>atEdge(t)?t:elasticOut(t,.075,.3),easeInOutElastic(t){const s=.1125;return atEdge(t)?t:t<.5?.5*elasticIn(2*t,s,.45):.5+.5*elasticOut(2*t-1,s,.45)},easeInBack(t){const s=1.70158;return t*t*((s+1)*t-s)},easeOutBack(t){const s=1.70158;return(t-=1)*t*((s+1)*t+s)+1},easeInOutBack(t){let s=1.70158;return(t/=.5)<1?t*t*((1+(s*=1.525))*t-s)*.5:.5*((t-=2)*t*((1+(s*=1.525))*t+s)+2)},easeInBounce:t=>1-effects.easeOutBounce(1-t),easeOutBounce(t){const m=7.5625,d=2.75;return t<1/d?m*t*t:t<2/d?m*(t-=1.5/d)*t+.75:t<2.5/d?m*(t-=2.25/d)*t+.9375:m*(t-=2.625/d)*t+.984375},easeInOutBounce:t=>t<.5?.5*effects.easeInBounce(2*t):.5*effects.easeOutBounce(2*t-1)+.5};function _pointInLine(p1,p2,t,mode){return{x:p1.x+t*(p2.x-p1.x),y:p1.y+t*(p2.y-p1.y)}}function _steppedInterpolation(p1,p2,t,mode){return{x:p1.x+t*(p2.x-p1.x),y:"middle"===mode?t<.5?p1.y:p2.y:"after"===mode?t<1?p1.y:p2.y:t>0?p2.y:p1.y}}function _bezierInterpolation(p1,p2,t,mode){const cp1={x:p1.cp2x,y:p1.cp2y},cp2={x:p2.cp1x,y:p2.cp1y},a=_pointInLine(p1,cp1,t),b=_pointInLine(cp1,cp2,t),c=_pointInLine(cp2,p2,t),d=_pointInLine(a,b,t),e=_pointInLine(b,c,t);return _pointInLine(d,e,t)}const LINE_HEIGHT=/^(normal|(\d+(?:\.\d+)?)(px|em|%)?)$/,FONT_STYLE=/^(normal|italic|initial|inherit|unset|(oblique( -?[0-9]?[0-9]deg)?))$/;function toLineHeight(value,size){const matches=(""+value).match(LINE_HEIGHT);if(!matches||"normal"===matches[1])return 1.2*size;switch(value=+matches[2],matches[3]){case"px":return value;case"%":value/=100}return size*value}function _readValueToProps(value,props){const ret={},objProps=isObject(props),keys=objProps?Object.keys(props):props,read=isObject(value)?objProps?prop=>valueOrDefault(value[prop],value[props[prop]]):prop=>value[prop]:()=>value;for(const prop of keys)ret[prop]=+read(prop)||0;return ret}function toTRBL(value){return _readValueToProps(value,{top:"y",right:"x",bottom:"y",left:"x"})}function toTRBLCorners(value){return _readValueToProps(value,["topLeft","topRight","bottomLeft","bottomRight"])}function toPadding(value){const obj=toTRBL(value);return obj.width=obj.left+obj.right,obj.height=obj.top+obj.bottom,obj}function toFont(options,fallback){options=options||{},fallback=fallback||defaults.font;let size=valueOrDefault(options.size,fallback.size);"string"==typeof size&&(size=parseInt(size,10));let style=valueOrDefault(options.style,fallback.style);style&&!(""+style).match(FONT_STYLE)&&(console.warn('Invalid font style specified: "'+style+'"'),style=void 0);const font={family:valueOrDefault(options.family,fallback.family),lineHeight:toLineHeight(valueOrDefault(options.lineHeight,fallback.lineHeight),size),size:size,style:style,weight:valueOrDefault(options.weight,fallback.weight),string:""};return font.string=toFontString(font),font}function resolve(inputs,context,index,info){let i,ilen,value,cacheable=!0;for(i=0,ilen=inputs.length;ibeginAtZero&&0===value?0:value+add;return{min:keepZero(min,-Math.abs(change)),max:keepZero(max,change)}}function createContext(parentContext,context){return Object.assign(Object.create(parentContext),context)}function getRtlAdapter(rtl,rectX,width){return rtl?function(rectX,width){return{x:x=>rectX+rectX+width-x,setWidth(w){width=w},textAlign:align=>"center"===align?align:"right"===align?"left":"right",xPlus:(x,value)=>x-value,leftForLtr:(x,itemWidth)=>x-itemWidth}}(rectX,width):{x:x=>x,setWidth(w){},textAlign:align=>align,xPlus:(x,value)=>x+value,leftForLtr:(x,_itemWidth)=>x}}function overrideTextDirection(ctx,direction){let style,original;"ltr"!==direction&&"rtl"!==direction||(style=ctx.canvas.style,original=[style.getPropertyValue("direction"),style.getPropertyPriority("direction")],style.setProperty("direction",direction,"important"),ctx.prevTextDirection=original)}function restoreTextDirection(ctx,original){void 0!==original&&(delete ctx.prevTextDirection,ctx.canvas.style.setProperty("direction",original[0],original[1]))}function propertyFn(property){return"angle"===property?{between:_angleBetween,compare:_angleDiff,normalize:_normalizeAngle}:{between:_isBetween,compare:(a,b)=>a-b,normalize:x=>x}}function normalizeSegment(_ref){let{start:start,end:end,count:count,loop:loop,style:style}=_ref;return{start:start%count,end:end%count,loop:loop&&(end-start+1)%count==0,style:style}}function _boundSegment(segment,points,bounds){if(!bounds)return[segment];const{property:property,start:startBound,end:endBound}=bounds,count=points.length,{compare:compare,between:between,normalize:normalize}=propertyFn(property),{start:start,end:end,loop:loop,style:style}=function(segment,points,bounds){const{property:property,start:startBound,end:endBound}=bounds,{between:between,normalize:normalize}=propertyFn(property),count=points.length;let i,ilen,{start:start,end:end,loop:loop}=segment;if(loop){for(start+=count,end+=count,i=0,ilen=count;iinside||between(startBound,prevValue,value)&&0!==compare(startBound,prevValue),shouldStop=()=>!inside||0===compare(endBound,value)||between(endBound,prevValue,value);for(let i=start,prev=start;i<=end;++i)point=points[i%count],point.skip||(value=normalize(point[property]),value!==prevValue&&(inside=between(value,startBound,endBound),null===subStart&&shouldStart()&&(subStart=0===compare(value,startBound)?i:prev),null!==subStart&&shouldStop()&&(result.push(normalizeSegment({start:subStart,end:i,loop:loop,count:count,style:style})),subStart=null),prev=i,prevValue=value));return null!==subStart&&result.push(normalizeSegment({start:subStart,end:end,loop:loop,count:count,style:style})),result}function _boundSegments(line,bounds){const result=[],segments=line.segments;for(let i=0;istart&&points[end%count].skip;)end--;return end%=count,{start:start,end:end}}(points,count,loop,spanGaps);return splitByStyles(line,!0===spanGaps?[{start:start,end:end,loop:loop}]:function(points,start,max,loop){const count=points.length,result=[];let end,last=start,prev=points[start];for(end=start+1;end<=max;++end){const cur=points[end%count];cur.skip||cur.stop?prev.skip||(loop=!1,result.push({start:start%count,end:(end-1)%count,loop:loop}),start=last=cur.stop?end:null):(last=end,prev.skip&&(start=end)),prev=cur}return null!==last&&result.push({start:start%count,end:last%count,loop:loop}),result}(points,start,end{element[rangeMethod](position[axis],useFinalPosition)&&(items.push({element:element,datasetIndex:datasetIndex,index:index}),intersectsItem=intersectsItem||element.inRange(position.x,position.y,useFinalPosition))})),intersect&&!intersectsItem?[]:items}var Interaction={evaluateInteractionItems:evaluateInteractionItems,modes:{index(chart,e,options,useFinalPosition){const position=getRelativePosition(e,chart),axis=options.axis||"x",includeInvisible=options.includeInvisible||!1,items=options.intersect?getIntersectItems(chart,position,axis,useFinalPosition,includeInvisible):getNearestItems(chart,position,axis,!1,useFinalPosition,includeInvisible),elements=[];return items.length?(chart.getSortedVisibleDatasetMetas().forEach((meta=>{const index=items[0].index,element=meta.data[index];element&&!element.skip&&elements.push({element:element,datasetIndex:meta.index,index:index})})),elements):[]},dataset(chart,e,options,useFinalPosition){const position=getRelativePosition(e,chart),axis=options.axis||"xy",includeInvisible=options.includeInvisible||!1;let items=options.intersect?getIntersectItems(chart,position,axis,useFinalPosition,includeInvisible):getNearestItems(chart,position,axis,!1,useFinalPosition,includeInvisible);if(items.length>0){const datasetIndex=items[0].datasetIndex,data=chart.getDatasetMeta(datasetIndex).data;items=[];for(let i=0;igetIntersectItems(chart,getRelativePosition(e,chart),options.axis||"xy",useFinalPosition,options.includeInvisible||!1),nearest(chart,e,options,useFinalPosition){const position=getRelativePosition(e,chart),axis=options.axis||"xy",includeInvisible=options.includeInvisible||!1;return getNearestItems(chart,position,axis,options.intersect,useFinalPosition,includeInvisible)},x:(chart,e,options,useFinalPosition)=>getAxisItems(chart,getRelativePosition(e,chart),"x",options.intersect,useFinalPosition),y:(chart,e,options,useFinalPosition)=>getAxisItems(chart,getRelativePosition(e,chart),"y",options.intersect,useFinalPosition)}};const STATIC_POSITIONS=["left","top","right","bottom"];function filterByPosition(array,position){return array.filter((v=>v.pos===position))}function filterDynamicPositionByAxis(array,axis){return array.filter((v=>-1===STATIC_POSITIONS.indexOf(v.pos)&&v.box.axis===axis))}function sortByWeight(array,reverse){return array.sort(((a,b)=>{const v0=reverse?b:a,v1=reverse?a:b;return v0.weight===v1.weight?v0.index-v1.index:v0.weight-v1.weight}))}function setLayoutDims(layouts,params){const stacks=function(layouts){const stacks={};for(const wrap of layouts){const{stack:stack,pos:pos,stackWeight:stackWeight}=wrap;if(!stack||!STATIC_POSITIONS.includes(pos))continue;const _stack=stacks[stack]||(stacks[stack]={count:0,placed:0,weight:0,size:0});_stack.count++,_stack.weight+=stackWeight}return stacks}(layouts),{vBoxMaxWidth:vBoxMaxWidth,hBoxMaxHeight:hBoxMaxHeight}=params;let i,ilen,layout;for(i=0,ilen=layouts.length;i{margin[pos]=Math.max(chartArea[pos],maxPadding[pos])})),margin}return marginForPositions(horizontal?["left","right"]:["top","bottom"])}function fitBoxes(boxes,chartArea,params,stacks){const refitBoxes=[];let i,ilen,layout,box,refit,changed;for(i=0,ilen=boxes.length,refit=0;iwrap.box.fullSize)),!0),left=sortByWeight(filterByPosition(layoutBoxes,"left"),!0),right=sortByWeight(filterByPosition(layoutBoxes,"right")),top=sortByWeight(filterByPosition(layoutBoxes,"top"),!0),bottom=sortByWeight(filterByPosition(layoutBoxes,"bottom")),centerHorizontal=filterDynamicPositionByAxis(layoutBoxes,"x"),centerVertical=filterDynamicPositionByAxis(layoutBoxes,"y");return{fullSize:fullSize,leftAndTop:left.concat(top),rightAndBottom:right.concat(centerVertical).concat(bottom).concat(centerHorizontal),chartArea:filterByPosition(layoutBoxes,"chartArea"),vertical:left.concat(right).concat(centerVertical),horizontal:top.concat(bottom).concat(centerHorizontal)}}(chart.boxes),verticalBoxes=boxes.vertical,horizontalBoxes=boxes.horizontal;each(chart.boxes,(box=>{"function"==typeof box.beforeLayout&&box.beforeLayout()}));const visibleVerticalBoxCount=verticalBoxes.reduce(((total,wrap)=>wrap.box.options&&!1===wrap.box.options.display?total:total+1),0)||1,params=Object.freeze({outerWidth:width,outerHeight:height,padding:padding,availableWidth:availableWidth,availableHeight:availableHeight,vBoxMaxWidth:availableWidth/2/visibleVerticalBoxCount,hBoxMaxHeight:availableHeight/2}),maxPadding=Object.assign({},padding);updateMaxPadding(maxPadding,toPadding(minPadding));const chartArea=Object.assign({maxPadding:maxPadding,w:availableWidth,h:availableHeight,x:padding.left,y:padding.top},padding),stacks=setLayoutDims(verticalBoxes.concat(horizontalBoxes),params);fitBoxes(boxes.fullSize,chartArea,params,stacks),fitBoxes(verticalBoxes,chartArea,params,stacks),fitBoxes(horizontalBoxes,chartArea,params,stacks)&&fitBoxes(verticalBoxes,chartArea,params,stacks),function(chartArea){const maxPadding=chartArea.maxPadding;function updatePos(pos){const change=Math.max(maxPadding[pos]-chartArea[pos],0);return chartArea[pos]+=change,change}chartArea.y+=updatePos("top"),chartArea.x+=updatePos("left"),updatePos("right"),updatePos("bottom")}(chartArea),placeBoxes(boxes.leftAndTop,chartArea,params,stacks),chartArea.x+=chartArea.w,chartArea.y+=chartArea.h,placeBoxes(boxes.rightAndBottom,chartArea,params,stacks),chart.chartArea={left:chartArea.left,top:chartArea.top,right:chartArea.left+chartArea.w,bottom:chartArea.top+chartArea.h,height:chartArea.h,width:chartArea.w},each(boxes.chartArea,(layout=>{const box=layout.box;Object.assign(box,chart.chartArea),box.update(chartArea.w,chartArea.h,{left:0,top:0,right:0,bottom:0})}))}};class BasePlatform{acquireContext(canvas,aspectRatio){}releaseContext(context){return!1}addEventListener(chart,type,listener){}removeEventListener(chart,type,listener){}getDevicePixelRatio(){return 1}getMaximumSize(element,width,height,aspectRatio){return width=Math.max(0,width||element.width),height=height||element.height,{width:width,height:Math.max(0,aspectRatio?Math.floor(width/aspectRatio):height)}}isAttached(canvas){return!0}updateConfig(config){}}class BasicPlatform extends BasePlatform{acquireContext(item){return item&&item.getContext&&item.getContext("2d")||null}updateConfig(config){config.options.animation=!1}}const EVENT_TYPES={touchstart:"mousedown",touchmove:"mousemove",touchend:"mouseup",pointerenter:"mouseenter",pointerdown:"mousedown",pointermove:"mousemove",pointerup:"mouseup",pointerleave:"mouseout",pointerout:"mouseout"},isNullOrEmpty=value=>null===value||""===value,eventListenerOptions=!!supportsEventListenerOptions&&{passive:!0};function removeListener(chart,type,listener){chart.canvas.removeEventListener(type,listener,eventListenerOptions)}function nodeListContains(nodeList,canvas){for(const node of nodeList)if(node===canvas||node.contains(canvas))return!0}function createAttachObserver(chart,type,listener){const canvas=chart.canvas,observer=new MutationObserver((entries=>{let trigger=!1;for(const entry of entries)trigger=trigger||nodeListContains(entry.addedNodes,canvas),trigger=trigger&&!nodeListContains(entry.removedNodes,canvas);trigger&&listener()}));return observer.observe(document,{childList:!0,subtree:!0}),observer}function createDetachObserver(chart,type,listener){const canvas=chart.canvas,observer=new MutationObserver((entries=>{let trigger=!1;for(const entry of entries)trigger=trigger||nodeListContains(entry.removedNodes,canvas),trigger=trigger&&!nodeListContains(entry.addedNodes,canvas);trigger&&listener()}));return observer.observe(document,{childList:!0,subtree:!0}),observer}const drpListeningCharts=new Map;let oldDevicePixelRatio=0;function onWindowResize(){const dpr=window.devicePixelRatio;dpr!==oldDevicePixelRatio&&(oldDevicePixelRatio=dpr,drpListeningCharts.forEach(((resize,chart)=>{chart.currentDevicePixelRatio!==dpr&&resize()})))}function createResizeObserver(chart,type,listener){const canvas=chart.canvas,container=canvas&&_getParentNode(canvas);if(!container)return;const resize=throttled(((width,height)=>{const w=container.clientWidth;listener(width,height),w{const entry=entries[0],width=entry.contentRect.width,height=entry.contentRect.height;0===width&&0===height||resize(width,height)}));return observer.observe(container),function(chart,resize){drpListeningCharts.size||window.addEventListener("resize",onWindowResize),drpListeningCharts.set(chart,resize)}(chart,resize),observer}function releaseObserver(chart,type,observer){observer&&observer.disconnect(),"resize"===type&&function(chart){drpListeningCharts.delete(chart),drpListeningCharts.size||window.removeEventListener("resize",onWindowResize)}(chart)}function createProxyAndListen(chart,type,listener){const canvas=chart.canvas,proxy=throttled((event=>{null!==chart.ctx&&listener(function(event,chart){const type=EVENT_TYPES[event.type]||event.type,{x:x,y:y}=getRelativePosition(event,chart);return{type:type,chart:chart,native:event,x:void 0!==x?x:null,y:void 0!==y?y:null}}(event,chart))}),chart);return function(node,type,listener){node.addEventListener(type,listener,eventListenerOptions)}(canvas,type,proxy),proxy}class DomPlatform extends BasePlatform{acquireContext(canvas,aspectRatio){const context=canvas&&canvas.getContext&&canvas.getContext("2d");return context&&context.canvas===canvas?(function(canvas,aspectRatio){const style=canvas.style,renderHeight=canvas.getAttribute("height"),renderWidth=canvas.getAttribute("width");if(canvas.$chartjs={initial:{height:renderHeight,width:renderWidth,style:{display:style.display,height:style.height,width:style.width}}},style.display=style.display||"block",style.boxSizing=style.boxSizing||"border-box",isNullOrEmpty(renderWidth)){const displayWidth=readUsedSize(canvas,"width");void 0!==displayWidth&&(canvas.width=displayWidth)}if(isNullOrEmpty(renderHeight))if(""===canvas.style.height)canvas.height=canvas.width/(aspectRatio||2);else{const displayHeight=readUsedSize(canvas,"height");void 0!==displayHeight&&(canvas.height=displayHeight)}}(canvas,aspectRatio),context):null}releaseContext(context){const canvas=context.canvas;if(!canvas.$chartjs)return!1;const initial=canvas.$chartjs.initial;["height","width"].forEach((prop=>{const value=initial[prop];isNullOrUndef(value)?canvas.removeAttribute(prop):canvas.setAttribute(prop,value)}));const style=initial.style||{};return Object.keys(style).forEach((key=>{canvas.style[key]=style[key]})),canvas.width=canvas.width,delete canvas.$chartjs,!0}addEventListener(chart,type,listener){this.removeEventListener(chart,type);const proxies=chart.$proxies||(chart.$proxies={}),handler={attach:createAttachObserver,detach:createDetachObserver,resize:createResizeObserver}[type]||createProxyAndListen;proxies[type]=handler(chart,type,listener)}removeEventListener(chart,type){const proxies=chart.$proxies||(chart.$proxies={}),proxy=proxies[type];proxy&&(({attach:releaseObserver,detach:releaseObserver,resize:releaseObserver}[type]||removeListener)(chart,type,proxy),proxies[type]=void 0)}getDevicePixelRatio(){return window.devicePixelRatio}getMaximumSize(canvas,width,height,aspectRatio){return getMaximumSize(canvas,width,height,aspectRatio)}isAttached(canvas){const container=_getParentNode(canvas);return!(!container||!container.isConnected)}}function _detectPlatform(canvas){return!_isDomSupported()||"undefined"!=typeof OffscreenCanvas&&canvas instanceof OffscreenCanvas?BasicPlatform:DomPlatform}var platforms=Object.freeze({__proto__:null,_detectPlatform:_detectPlatform,BasePlatform:BasePlatform,BasicPlatform:BasicPlatform,DomPlatform:DomPlatform});const interpolators={boolean:(from,to,factor)=>factor>.5?to:from,color(from,to,factor){const c0=color(from||"transparent"),c1=c0.valid&&color(to||"transparent");return c1&&c1.valid?c1.mix(c0,factor).hexString():to},number:(from,to,factor)=>from+(to-from)*factor};class Animation{constructor(cfg,target,prop,to){const currentValue=target[prop];to=resolve([cfg.to,to,currentValue,cfg.from]);const from=resolve([cfg.from,currentValue,to]);this._active=!0,this._fn=cfg.fn||interpolators[cfg.type||typeof from],this._easing=effects[cfg.easing]||effects.linear,this._start=Math.floor(Date.now()+(cfg.delay||0)),this._duration=this._total=Math.floor(cfg.duration),this._loop=!!cfg.loop,this._target=target,this._prop=prop,this._from=from,this._to=to,this._promises=void 0}active(){return this._active}update(cfg,to,date){if(this._active){this._notify(!1);const currentValue=this._target[this._prop],elapsed=date-this._start,remain=this._duration-elapsed;this._start=date,this._duration=Math.floor(Math.max(remain,cfg.duration)),this._total+=elapsed,this._loop=!!cfg.loop,this._to=resolve([cfg.to,to,currentValue,cfg.from]),this._from=resolve([cfg.from,currentValue,to])}}cancel(){this._active&&(this.tick(Date.now()),this._active=!1,this._notify(!1))}tick(date){const elapsed=date-this._start,duration=this._duration,prop=this._prop,from=this._from,loop=this._loop,to=this._to;let factor;if(this._active=from!==to&&(loop||elapsed1?2-factor:factor,factor=this._easing(Math.min(1,Math.max(0,factor))),this._target[prop]=this._fn(from,to,factor))}wait(){const promises=this._promises||(this._promises=[]);return new Promise(((res,rej)=>{promises.push({res:res,rej:rej})}))}_notify(resolved){const method=resolved?"res":"rej",promises=this._promises||[];for(let i=0;i{const cfg=config[key];if(!isObject(cfg))return;const resolved={};for(const option of animationOptions)resolved[option]=cfg[option];(isArray(cfg.properties)&&cfg.properties||[key]).forEach((prop=>{prop!==key&&animatedProps.has(prop)||animatedProps.set(prop,resolved)}))}))}_animateOptions(target,values){const newOptions=values.options,options=function(target,newOptions){if(!newOptions)return;let options=target.options;if(options)return options.$shared&&(target.options=options=Object.assign({},options,{$shared:!1,$animations:{}})),options;target.options=newOptions}(target,newOptions);if(!options)return[];const animations=this._createAnimations(options,newOptions);return newOptions.$shared&&function(animations,properties){const running=[],keys=Object.keys(properties);for(let i=0;i{target.options=newOptions}),(()=>{})),animations}_createAnimations(target,values){const animatedProps=this._properties,animations=[],running=target.$animations||(target.$animations={}),props=Object.keys(values),date=Date.now();let i;for(i=props.length-1;i>=0;--i){const prop=props[i];if("$"===prop.charAt(0))continue;if("options"===prop){animations.push(...this._animateOptions(target,values));continue}const value=values[prop];let animation=running[prop];const cfg=animatedProps.get(prop);if(animation){if(cfg&&animation.active()){animation.update(cfg,value,date);continue}animation.cancel()}cfg&&cfg.duration?(running[prop]=animation=new Animation(cfg,target,prop,value),animations.push(animation)):target[prop]=value}return animations}update(target,values){if(0===this._properties.size)return void Object.assign(target,values);const animations=this._createAnimations(target,values);return animations.length?(animator.add(this._chart,animations),!0):void 0}}function scaleClip(scale,allowedOverflow){const opts=scale&&scale.options||{},reverse=opts.reverse,min=void 0===opts.min?allowedOverflow:0,max=void 0===opts.max?allowedOverflow:0;return{start:reverse?max:min,end:reverse?min:max}}function getSortedDatasetIndices(chart,filterVisible){const keys=[],metasets=chart._getSortedDatasetMetas(filterVisible);let i,ilen;for(i=0,ilen=metasets.length;i3&&void 0!==arguments[3]?arguments[3]:{};const keys=stack.keys,singleMode="single"===options.mode;let i,ilen,datasetIndex,otherValue;if(null!==value){for(i=0,ilen=keys.length;i0||!positive&&value<0)return meta.index}return null}function updateStacks(controller,parsed){const{chart:chart,_cachedMeta:meta}=controller,stacks=chart._stacks||(chart._stacks={}),{iScale:iScale,vScale:vScale,index:datasetIndex}=meta,iAxis=iScale.axis,vAxis=vScale.axis,key=function(indexScale,valueScale,meta){return"".concat(indexScale.id,".").concat(valueScale.id,".").concat(meta.stack||meta.type)}(iScale,vScale,meta),ilen=parsed.length;let stack;for(let i=0;iscales[key].axis===axis)).shift()}function clearStacks(meta,items){const datasetIndex=meta.controller.index,axis=meta.vScale&&meta.vScale.axis;if(axis){items=items||meta._parsed;for(const parsed of items){const stacks=parsed._stacks;if(!stacks||void 0===stacks[axis]||void 0===stacks[axis][datasetIndex])return;delete stacks[axis][datasetIndex],void 0!==stacks[axis]._visualValues&&void 0!==stacks[axis]._visualValues[datasetIndex]&&delete stacks[axis]._visualValues[datasetIndex]}}}const isDirectUpdateMode=mode=>"reset"===mode||"none"===mode,cloneIfNotShared=(cached,shared)=>shared?cached:Object.assign({},cached);class DatasetController{constructor(chart,datasetIndex){this.chart=chart,this._ctx=chart.ctx,this.index=datasetIndex,this._cachedDataOpts={},this._cachedMeta=this.getMeta(),this._type=this._cachedMeta.type,this.options=void 0,this._parsing=!1,this._data=void 0,this._objectData=void 0,this._sharedOptions=void 0,this._drawStart=void 0,this._drawCount=void 0,this.enableOptionSharing=!1,this.supportsDecimation=!1,this.$context=void 0,this._syncList=[],this.datasetElementType=new.target.datasetElementType,this.dataElementType=new.target.dataElementType,this.initialize()}initialize(){const meta=this._cachedMeta;this.configure(),this.linkScales(),meta._stacked=isStacked(meta.vScale,meta),this.addElements(),this.options.fill&&!this.chart.isPluginEnabled("filler")&&console.warn("Tried to use the 'fill' option without the 'Filler' plugin enabled. Please import and register the 'Filler' plugin and make sure it is not disabled in the options")}updateIndex(datasetIndex){this.index!==datasetIndex&&clearStacks(this._cachedMeta),this.index=datasetIndex}linkScales(){const chart=this.chart,meta=this._cachedMeta,dataset=this.getDataset(),chooseId=(axis,x,y,r)=>"x"===axis?x:"r"===axis?r:y,xid=meta.xAxisID=valueOrDefault(dataset.xAxisID,getFirstScaleId(chart,"x")),yid=meta.yAxisID=valueOrDefault(dataset.yAxisID,getFirstScaleId(chart,"y")),rid=meta.rAxisID=valueOrDefault(dataset.rAxisID,getFirstScaleId(chart,"r")),indexAxis=meta.indexAxis,iid=meta.iAxisID=chooseId(indexAxis,xid,yid,rid),vid=meta.vAxisID=chooseId(indexAxis,yid,xid,rid);meta.xScale=this.getScaleForId(xid),meta.yScale=this.getScaleForId(yid),meta.rScale=this.getScaleForId(rid),meta.iScale=this.getScaleForId(iid),meta.vScale=this.getScaleForId(vid)}getDataset(){return this.chart.data.datasets[this.index]}getMeta(){return this.chart.getDatasetMeta(this.index)}getScaleForId(scaleID){return this.chart.scales[scaleID]}_getOtherScale(scale){const meta=this._cachedMeta;return scale===meta.iScale?meta.vScale:meta.iScale}reset(){this._update("reset")}_destroy(){const meta=this._cachedMeta;this._data&&unlistenArrayEvents(this._data,this),meta._stacked&&clearStacks(meta)}_dataCheck(){const dataset=this.getDataset(),data=dataset.data||(dataset.data=[]),_data=this._data;if(isObject(data))this._data=function(data){const keys=Object.keys(data),adata=new Array(keys.length);let i,ilen,key;for(i=0,ilen=keys.length;i0&&meta._parsed[start-1];if(!1===this._parsing)meta._parsed=data,meta._sorted=!0,parsed=data;else{parsed=isArray(data[start])?this.parseArrayData(meta,data,start,count):isObject(data[start])?this.parseObjectData(meta,data,start,count):this.parsePrimitiveData(meta,data,start,count);const isNotInOrderComparedToPrev=()=>null===cur[iAxis]||prev&&cur[iAxis]canStack&&!meta.hidden&&meta._stacked&&{keys:getSortedDatasetIndices(chart,!0),values:null})(canStack,meta,this.chart),range={min:Number.POSITIVE_INFINITY,max:Number.NEGATIVE_INFINITY},{min:otherMin,max:otherMax}=function(scale){const{min:min,max:max,minDefined:minDefined,maxDefined:maxDefined}=scale.getUserBounds();return{min:minDefined?min:Number.NEGATIVE_INFINITY,max:maxDefined?max:Number.POSITIVE_INFINITY}}(otherScale);let i,parsed;function _skip(){parsed=_parsed[i];const otherValue=parsed[otherScale.axis];return!isNumberFinite(parsed[scale.axis])||otherMin>otherValue||otherMax=0;--i)if(!_skip()){this.updateRangeFromParsed(range,scale,parsed,stack);break}return range}getAllParsedValues(scale){const parsed=this._cachedMeta._parsed,values=[];let i,ilen,value;for(i=0,ilen=parsed.length;i=0&&index1&&void 0!==arguments[1]?arguments[1]:"default",index=arguments.length>2?arguments[2]:void 0;const active="active"===mode,cache=this._cachedDataOpts,cacheKey=elementType+"-"+mode,cached=cache[cacheKey],sharing=this.enableOptionSharing&&defined(index);if(cached)return cloneIfNotShared(cached,sharing);const config=this.chart.config,scopeKeys=config.datasetElementScopeKeys(this._type,elementType),prefixes=active?["".concat(elementType,"Hover"),"hover",elementType,""]:[elementType,""],scopes=config.getOptionScopes(this.getDataset(),scopeKeys),names=Object.keys(defaults.elements[elementType]),values=config.resolveNamedOptions(scopes,names,(()=>this.getContext(index,active,mode)),prefixes);return values.$shared&&(values.$shared=sharing,cache[cacheKey]=Object.freeze(cloneIfNotShared(values,sharing))),values}_resolveAnimations(index,transition,active){const chart=this.chart,cache=this._cachedDataOpts,cacheKey="animation-".concat(transition),cached=cache[cacheKey];if(cached)return cached;let options;if(!1!==chart.options.animation){const config=this.chart.config,scopeKeys=config.datasetAnimationScopeKeys(this._type,transition),scopes=config.getOptionScopes(this.getDataset(),scopeKeys);options=config.createResolver(scopes,this.getContext(index,active,transition))}const animations=new Animations(chart,options&&options.animations);return options&&options._cacheable&&(cache[cacheKey]=Object.freeze(animations)),animations}getSharedOptions(options){if(options.$shared)return this._sharedOptions||(this._sharedOptions=Object.assign({},options))}includeOptions(mode,sharedOptions){return!sharedOptions||isDirectUpdateMode(mode)||this.chart._animationsDisabled}_getSharedOptions(start,mode){const firstOpts=this.resolveDataElementOptions(start,mode),previouslySharedOptions=this._sharedOptions,sharedOptions=this.getSharedOptions(firstOpts),includeOptions=this.includeOptions(mode,sharedOptions)||sharedOptions!==previouslySharedOptions;return this.updateSharedOptions(sharedOptions,mode,firstOpts),{sharedOptions:sharedOptions,includeOptions:includeOptions}}updateElement(element,index,properties,mode){isDirectUpdateMode(mode)?Object.assign(element,properties):this._resolveAnimations(index,mode).update(element,properties)}updateSharedOptions(sharedOptions,mode,newOptions){sharedOptions&&!isDirectUpdateMode(mode)&&this._resolveAnimations(void 0,mode).update(sharedOptions,newOptions)}_setStyle(element,index,mode,active){element.active=active;const options=this.getStyle(index,active);this._resolveAnimations(index,mode,active).update(element,{options:!active&&this.getSharedOptions(options)||options})}removeHoverStyle(element,datasetIndex,index){this._setStyle(element,index,"active",!1)}setHoverStyle(element,datasetIndex,index){this._setStyle(element,index,"active",!0)}_removeDatasetHoverStyle(){const element=this._cachedMeta.dataset;element&&this._setStyle(element,void 0,"active",!1)}_setDatasetHoverStyle(){const element=this._cachedMeta.dataset;element&&this._setStyle(element,void 0,"active",!0)}_resyncElements(resetNewElements){const data=this._data,elements=this._cachedMeta.data;for(const[method,arg1,arg2]of this._syncList)this[method](arg1,arg2);this._syncList=[];const numMeta=elements.length,numData=data.length,count=Math.min(numData,numMeta);count&&this.parse(0,count),numData>numMeta?this._insertElements(numMeta,numData-numMeta,resetNewElements):numData2&&void 0!==arguments[2])||arguments[2];const meta=this._cachedMeta,data=meta.data,end=start+count;let i;const move=arr=>{for(arr.length+=count,i=arr.length-1;i>=end;i--)arr[i]=arr[i-count]};for(move(data),i=start;i{ret[prop]=anims[prop]&&anims[prop].active()?anims[prop]._to:this[prop]})),ret}}function autoSkip(scale,ticks){const tickOpts=scale.options.ticks,determinedMaxTicks=function(scale){const offset=scale.options.offset,tickLength=scale._tickSize(),maxScale=scale._length/tickLength+(offset?0:1),maxChart=scale._maxLength/tickLength;return Math.floor(Math.min(maxScale,maxChart))}(scale),ticksLimit=Math.min(tickOpts.maxTicksLimit||determinedMaxTicks,determinedMaxTicks),majorIndices=tickOpts.major.enabled?function(ticks){const result=[];let i,ilen;for(i=0,ilen=ticks.length;iticksLimit)return function(ticks,newTicks,majorIndices,spacing){let i,count=0,next=majorIndices[0];for(spacing=Math.ceil(spacing),i=0;ispacing)return factor}return Math.max(spacing,1)}(majorIndices,ticks,ticksLimit);if(numMajorIndices>0){let i,ilen;const avgMajorSpacing=numMajorIndices>1?Math.round((last-first)/(numMajorIndices-1)):null;for(skip(ticks,newTicks,spacing,isNullOrUndef(avgMajorSpacing)?0:first-avgMajorSpacing,first),i=0,ilen=numMajorIndices-1;i"top"===edge||"left"===edge?scale[edge]+offset:scale[edge]-offset,getTicksLimit=(ticksLength,maxTicksLimit)=>Math.min(maxTicksLimit||ticksLength,ticksLength);function sample(arr,numItems){const result=[],increment=arr.length/numItems,len=arr.length;let i=0;for(;iend+1e-6)))return lineValue}function getTickMarkLength(options){return options.drawTicks?options.tickLength:0}function getTitleHeight(options,fallback){if(!options.display)return 0;const font=toFont(options.font,fallback),padding=toPadding(options.padding);return(isArray(options.text)?options.text.length:1)*font.lineHeight+padding.height}function titleAlign(align,position,reverse){let ret=_toLeftRightCenter(align);return(reverse&&"right"!==position||!reverse&&"right"===position)&&(ret=(align=>"left"===align?"right":"right"===align?"left":align)(ret)),ret}class Scale extends Element{constructor(cfg){super(),this.id=cfg.id,this.type=cfg.type,this.options=void 0,this.ctx=cfg.ctx,this.chart=cfg.chart,this.top=void 0,this.bottom=void 0,this.left=void 0,this.right=void 0,this.width=void 0,this.height=void 0,this._margins={left:0,right:0,top:0,bottom:0},this.maxWidth=void 0,this.maxHeight=void 0,this.paddingTop=void 0,this.paddingBottom=void 0,this.paddingLeft=void 0,this.paddingRight=void 0,this.axis=void 0,this.labelRotation=void 0,this.min=void 0,this.max=void 0,this._range=void 0,this.ticks=[],this._gridLineItems=null,this._labelItems=null,this._labelSizes=null,this._length=0,this._maxLength=0,this._longestTextCache={},this._startPixel=void 0,this._endPixel=void 0,this._reversePixels=!1,this._userMax=void 0,this._userMin=void 0,this._suggestedMax=void 0,this._suggestedMin=void 0,this._ticksLength=0,this._borderValue=0,this._cache={},this._dataLimitsCached=!1,this.$context=void 0}init(options){this.options=options.setContext(this.getContext()),this.axis=options.axis,this._userMin=this.parse(options.min),this._userMax=this.parse(options.max),this._suggestedMin=this.parse(options.suggestedMin),this._suggestedMax=this.parse(options.suggestedMax)}parse(raw,index){return raw}getUserBounds(){let{_userMin:_userMin,_userMax:_userMax,_suggestedMin:_suggestedMin,_suggestedMax:_suggestedMax}=this;return _userMin=finiteOrDefault(_userMin,Number.POSITIVE_INFINITY),_userMax=finiteOrDefault(_userMax,Number.NEGATIVE_INFINITY),_suggestedMin=finiteOrDefault(_suggestedMin,Number.POSITIVE_INFINITY),_suggestedMax=finiteOrDefault(_suggestedMax,Number.NEGATIVE_INFINITY),{min:finiteOrDefault(_userMin,_suggestedMin),max:finiteOrDefault(_userMax,_suggestedMax),minDefined:isNumberFinite(_userMin),maxDefined:isNumberFinite(_userMax)}}getMinMax(canStack){let range,{min:min,max:max,minDefined:minDefined,maxDefined:maxDefined}=this.getUserBounds();if(minDefined&&maxDefined)return{min:min,max:max};const metas=this.getMatchingVisibleMetas();for(let i=0,ilen=metas.length;imax?max:min,max=minDefined&&min>max?min:max,{min:finiteOrDefault(min,finiteOrDefault(max,min)),max:finiteOrDefault(max,finiteOrDefault(min,max))}}getPadding(){return{left:this.paddingLeft||0,top:this.paddingTop||0,right:this.paddingRight||0,bottom:this.paddingBottom||0}}getTicks(){return this.ticks}getLabels(){const data=this.chart.data;return this.options.labels||(this.isHorizontal()?data.xLabels:data.yLabels)||data.labels||[]}getLabelItems(){let chartArea=arguments.length>0&&void 0!==arguments[0]?arguments[0]:this.chart.chartArea;return this._labelItems||(this._labelItems=this._computeLabelItems(chartArea))}beforeLayout(){this._cache={},this._dataLimitsCached=!1}beforeUpdate(){callback(this.options.beforeUpdate,[this])}update(maxWidth,maxHeight,margins){const{beginAtZero:beginAtZero,grace:grace,ticks:tickOpts}=this.options,sampleSize=tickOpts.sampleSize;this.beforeUpdate(),this.maxWidth=maxWidth,this.maxHeight=maxHeight,this._margins=margins=Object.assign({left:0,right:0,top:0,bottom:0},margins),this.ticks=null,this._labelSizes=null,this._gridLineItems=null,this._labelItems=null,this.beforeSetDimensions(),this.setDimensions(),this.afterSetDimensions(),this._maxLength=this.isHorizontal()?this.width+margins.left+margins.right:this.height+margins.top+margins.bottom,this._dataLimitsCached||(this.beforeDataLimits(),this.determineDataLimits(),this.afterDataLimits(),this._range=_addGrace(this,grace,beginAtZero),this._dataLimitsCached=!0),this.beforeBuildTicks(),this.ticks=this.buildTicks()||[],this.afterBuildTicks();const samplingEnabled=sampleSize=maxRotation||numTicks<=1||!this.isHorizontal())return void(this.labelRotation=minRotation);const labelSizes=this._getLabelSizes(),maxLabelWidth=labelSizes.widest.width,maxLabelHeight=labelSizes.highest.height,maxWidth=_limitValue(this.chart.width-maxLabelWidth,0,this.maxWidth);tickWidth=options.offset?this.maxWidth/numTicks:maxWidth/(numTicks-1),maxLabelWidth+6>tickWidth&&(tickWidth=maxWidth/(numTicks-(options.offset?.5:1)),maxHeight=this.maxHeight-getTickMarkLength(options.grid)-tickOpts.padding-getTitleHeight(options.title,this.chart.options.font),maxLabelDiagonal=Math.sqrt(maxLabelWidth*maxLabelWidth+maxLabelHeight*maxLabelHeight),labelRotation=toDegrees(Math.min(Math.asin(_limitValue((labelSizes.highest.height+6)/tickWidth,-1,1)),Math.asin(_limitValue(maxHeight/maxLabelDiagonal,-1,1))-Math.asin(_limitValue(maxLabelHeight/maxLabelDiagonal,-1,1)))),labelRotation=Math.max(minRotation,Math.min(maxRotation,labelRotation))),this.labelRotation=labelRotation}afterCalculateLabelRotation(){callback(this.options.afterCalculateLabelRotation,[this])}afterAutoSkip(){}beforeFit(){callback(this.options.beforeFit,[this])}fit(){const minSize={width:0,height:0},{chart:chart,options:{ticks:tickOpts,title:titleOpts,grid:gridOpts}}=this,display=this._isVisible(),isHorizontal=this.isHorizontal();if(display){const titleHeight=getTitleHeight(titleOpts,chart.options.font);if(isHorizontal?(minSize.width=this.maxWidth,minSize.height=getTickMarkLength(gridOpts)+titleHeight):(minSize.height=this.maxHeight,minSize.width=getTickMarkLength(gridOpts)+titleHeight),tickOpts.display&&this.ticks.length){const{first:first,last:last,widest:widest,highest:highest}=this._getLabelSizes(),tickPadding=2*tickOpts.padding,angleRadians=toRadians(this.labelRotation),cos=Math.cos(angleRadians),sin=Math.sin(angleRadians);if(isHorizontal){const labelHeight=tickOpts.mirror?0:sin*widest.width+cos*highest.height;minSize.height=Math.min(this.maxHeight,minSize.height+labelHeight+tickPadding)}else{const labelWidth=tickOpts.mirror?0:cos*widest.width+sin*highest.height;minSize.width=Math.min(this.maxWidth,minSize.width+labelWidth+tickPadding)}this._calculatePadding(first,last,sin,cos)}}this._handleMargins(),isHorizontal?(this.width=this._length=chart.width-this._margins.left-this._margins.right,this.height=minSize.height):(this.width=minSize.width,this.height=this._length=chart.height-this._margins.top-this._margins.bottom)}_calculatePadding(first,last,sin,cos){const{ticks:{align:align,padding:padding},position:position}=this.options,isRotated=0!==this.labelRotation,labelsBelowTicks="top"!==position&&"x"===this.axis;if(this.isHorizontal()){const offsetLeft=this.getPixelForTick(0)-this.left,offsetRight=this.right-this.getPixelForTick(this.ticks.length-1);let paddingLeft=0,paddingRight=0;isRotated?labelsBelowTicks?(paddingLeft=cos*first.width,paddingRight=sin*last.height):(paddingLeft=sin*first.height,paddingRight=cos*last.width):"start"===align?paddingRight=last.width:"end"===align?paddingLeft=first.width:"inner"!==align&&(paddingLeft=first.width/2,paddingRight=last.width/2),this.paddingLeft=Math.max((paddingLeft-offsetLeft+padding)*this.width/(this.width-offsetLeft),0),this.paddingRight=Math.max((paddingRight-offsetRight+padding)*this.width/(this.width-offsetRight),0)}else{let paddingTop=last.height/2,paddingBottom=first.height/2;"start"===align?(paddingTop=0,paddingBottom=first.height):"end"===align&&(paddingTop=last.height,paddingBottom=0),this.paddingTop=paddingTop+padding,this.paddingBottom=paddingBottom+padding}}_handleMargins(){this._margins&&(this._margins.left=Math.max(this.paddingLeft,this._margins.left),this._margins.top=Math.max(this.paddingTop,this._margins.top),this._margins.right=Math.max(this.paddingRight,this._margins.right),this._margins.bottom=Math.max(this.paddingBottom,this._margins.bottom))}afterFit(){callback(this.options.afterFit,[this])}isHorizontal(){const{axis:axis,position:position}=this.options;return"top"===position||"bottom"===position||"x"===axis}isFullSize(){return this.options.fullSize}_convertTicksToLabels(ticks){let i,ilen;for(this.beforeTickToLabelConversion(),this.generateTickLabels(ticks),i=0,ilen=ticks.length;i{const gc=cache.gc,gcLen=gc.length/2;let i;if(gcLen>length){for(i=0;i({width:widths[idx]||0,height:heights[idx]||0});return{first:valueAt(0),last:valueAt(length-1),widest:valueAt(widest),highest:valueAt(highest),widths:widths,heights:heights}}getLabelForValue(value){return value}getPixelForValue(value,index){return NaN}getValueForPixel(pixel){}getPixelForTick(index){const ticks=this.ticks;return index<0||index>ticks.length-1?null:this.getPixelForValue(ticks[index].value)}getPixelForDecimal(decimal){this._reversePixels&&(decimal=1-decimal);const pixel=this._startPixel+decimal*this._length;return _int16Range(this._alignToPixels?_alignPixel(this.chart,pixel,0):pixel)}getDecimalForPixel(pixel){const decimal=(pixel-this._startPixel)/this._length;return this._reversePixels?1-decimal:decimal}getBasePixel(){return this.getPixelForValue(this.getBaseValue())}getBaseValue(){const{min:min,max:max}=this;return min<0&&max<0?max:min>0&&max>0?min:0}getContext(index){const ticks=this.ticks||[];if(index>=0&&indexw*sin?w/cos:h/sin:h*sin0}_computeGridLineItems(chartArea){const axis=this.axis,chart=this.chart,options=this.options,{grid:grid,position:position,border:border}=options,offset=grid.offset,isHorizontal=this.isHorizontal(),ticksLength=this.ticks.length+(offset?1:0),tl=getTickMarkLength(grid),items=[],borderOpts=border.setContext(this.getContext()),axisWidth=borderOpts.display?borderOpts.width:0,axisHalfWidth=axisWidth/2,alignBorderValue=function(pixel){return _alignPixel(chart,pixel,axisWidth)};let borderValue,i,lineValue,alignedLineValue,tx1,ty1,tx2,ty2,x1,y1,x2,y2;if("top"===position)borderValue=alignBorderValue(this.bottom),ty1=this.bottom-tl,ty2=borderValue-axisHalfWidth,y1=alignBorderValue(chartArea.top)+axisHalfWidth,y2=chartArea.bottom;else if("bottom"===position)borderValue=alignBorderValue(this.top),y1=chartArea.top,y2=alignBorderValue(chartArea.bottom)-axisHalfWidth,ty1=borderValue+axisHalfWidth,ty2=this.top+tl;else if("left"===position)borderValue=alignBorderValue(this.right),tx1=this.right-tl,tx2=borderValue-axisHalfWidth,x1=alignBorderValue(chartArea.left)+axisHalfWidth,x2=chartArea.right;else if("right"===position)borderValue=alignBorderValue(this.left),x1=chartArea.left,x2=alignBorderValue(chartArea.right)-axisHalfWidth,tx1=borderValue+axisHalfWidth,tx2=this.left+tl;else if("x"===axis){if("center"===position)borderValue=alignBorderValue((chartArea.top+chartArea.bottom)/2+.5);else if(isObject(position)){const positionAxisID=Object.keys(position)[0],value=position[positionAxisID];borderValue=alignBorderValue(this.chart.scales[positionAxisID].getPixelForValue(value))}y1=chartArea.top,y2=chartArea.bottom,ty1=borderValue+axisHalfWidth,ty2=ty1+tl}else if("y"===axis){if("center"===position)borderValue=alignBorderValue((chartArea.left+chartArea.right)/2);else if(isObject(position)){const positionAxisID1=Object.keys(position)[0],value1=position[positionAxisID1];borderValue=alignBorderValue(this.chart.scales[positionAxisID1].getPixelForValue(value1))}tx1=borderValue-axisHalfWidth,tx2=tx1-tl,x1=chartArea.left,x2=chartArea.right}const limit=valueOrDefault(options.ticks.maxTicksLimit,ticksLength),step=Math.max(1,Math.ceil(ticksLength/limit));for(i=0;it.value===value));return index>=0?grid.setContext(this.getContext(index)).lineWidth:0}drawGrid(chartArea){const grid=this.options.grid,ctx=this.ctx,items=this._gridLineItems||(this._gridLineItems=this._computeGridLineItems(chartArea));let i,ilen;const drawLine=(p1,p2,style)=>{style.width&&style.color&&(ctx.save(),ctx.lineWidth=style.width,ctx.strokeStyle=style.color,ctx.setLineDash(style.borderDash||[]),ctx.lineDashOffset=style.borderDashOffset,ctx.beginPath(),ctx.moveTo(p1.x,p1.y),ctx.lineTo(p2.x,p2.y),ctx.stroke(),ctx.restore())};if(grid.display)for(i=0,ilen=items.length;i{this.drawBackground(),this.drawGrid(chartArea),this.drawTitle()}},{z:bz,draw:()=>{this.drawBorder()}},{z:tz,draw:chartArea=>{this.drawLabels(chartArea)}}]:[{z:tz,draw:chartArea=>{this.draw(chartArea)}}]}getMatchingVisibleMetas(type){const metas=this.chart.getSortedVisibleDatasetMetas(),axisID=this.axis+"AxisID",result=[];let i,ilen;for(i=0,ilen=metas.length;i{const propertyParts=property.split("."),sourceName=propertyParts.pop(),sourceScope=[scope].concat(propertyParts).join("."),parts=routes[property].split("."),targetName=parts.pop(),targetScope=parts.join(".");defaults.route(sourceScope,sourceName,targetScope,targetName)}))}(scope,item.defaultRoutes),item.descriptors&&defaults.describe(scope,item.descriptors)}(item,scope,parentScope),this.override&&defaults.override(item.id,item.overrides)),scope}get(id){return this.items[id]}unregister(item){const items=this.items,id=item.id,scope=this.scope;id in items&&delete items[id],scope&&id in defaults[scope]&&(delete defaults[scope][id],this.override&&delete overrides[id])}}var registry=new class{constructor(){this.controllers=new TypedRegistry(DatasetController,"datasets",!0),this.elements=new TypedRegistry(Element,"elements"),this.plugins=new TypedRegistry(Object,"plugins"),this.scales=new TypedRegistry(Scale,"scales"),this._typedRegistries=[this.controllers,this.scales,this.elements]}add(){for(var _len4=arguments.length,args=new Array(_len4),_key4=0;_key4<_len4;_key4++)args[_key4]=arguments[_key4];this._each("register",args)}remove(){for(var _len5=arguments.length,args=new Array(_len5),_key5=0;_key5<_len5;_key5++)args[_key5]=arguments[_key5];this._each("unregister",args)}addControllers(){for(var _len6=arguments.length,args=new Array(_len6),_key6=0;_key6<_len6;_key6++)args[_key6]=arguments[_key6];this._each("register",args,this.controllers)}addElements(){for(var _len7=arguments.length,args=new Array(_len7),_key7=0;_key7<_len7;_key7++)args[_key7]=arguments[_key7];this._each("register",args,this.elements)}addPlugins(){for(var _len8=arguments.length,args=new Array(_len8),_key8=0;_key8<_len8;_key8++)args[_key8]=arguments[_key8];this._each("register",args,this.plugins)}addScales(){for(var _len9=arguments.length,args=new Array(_len9),_key9=0;_key9<_len9;_key9++)args[_key9]=arguments[_key9];this._each("register",args,this.scales)}getController(id){return this._get(id,this.controllers,"controller")}getElement(id){return this._get(id,this.elements,"element")}getPlugin(id){return this._get(id,this.plugins,"plugin")}getScale(id){return this._get(id,this.scales,"scale")}removeControllers(){for(var _len10=arguments.length,args=new Array(_len10),_key10=0;_key10<_len10;_key10++)args[_key10]=arguments[_key10];this._each("unregister",args,this.controllers)}removeElements(){for(var _len11=arguments.length,args=new Array(_len11),_key11=0;_key11<_len11;_key11++)args[_key11]=arguments[_key11];this._each("unregister",args,this.elements)}removePlugins(){for(var _len12=arguments.length,args=new Array(_len12),_key12=0;_key12<_len12;_key12++)args[_key12]=arguments[_key12];this._each("unregister",args,this.plugins)}removeScales(){for(var _len13=arguments.length,args=new Array(_len13),_key13=0;_key13<_len13;_key13++)args[_key13]=arguments[_key13];this._each("unregister",args,this.scales)}_each(method,args,typedRegistry){[...args].forEach((arg=>{const reg=typedRegistry||this._getRegistryForType(arg);typedRegistry||reg.isForType(arg)||reg===this.plugins&&arg.id?this._exec(method,reg,arg):each(arg,(item=>{const itemReg=typedRegistry||this._getRegistryForType(item);this._exec(method,itemReg,item)}))}))}_exec(method,registry,component){const camelMethod=_capitalize(method);callback(component["before"+camelMethod],[],component),registry[method](component),callback(component["after"+camelMethod],[],component)}_getRegistryForType(type){for(let i=0;ia.filter((x=>!b.some((y=>x.plugin.id===y.plugin.id))));this._notify(diff(previousDescriptors,descriptors),chart,"stop"),this._notify(diff(descriptors,previousDescriptors),chart,"start")}}function getOpts(options,all){return all||!1!==options?!0===options?{}:options:null}function pluginOpts(config,_ref3,opts,context){let{plugin:plugin,local:local}=_ref3;const keys=config.pluginScopeKeys(plugin),scopes=config.getOptionScopes(opts,keys);return local&&plugin.defaults&&scopes.push(plugin.defaults),config.createResolver(scopes,context,[""],{scriptable:!1,indexable:!1,allKeys:!0})}function getIndexAxis(type,options){const datasetDefaults=defaults.datasets[type]||{};return((options.datasets||{})[type]||{}).indexAxis||options.indexAxis||datasetDefaults.indexAxis||"x"}function determineAxis(id,scaleOptions){if("x"===id||"y"===id||"r"===id)return id;var position;if(id=scaleOptions.axis||("top"===(position=scaleOptions.position)||"bottom"===position?"x":"left"===position||"right"===position?"y":void 0)||id.length>1&&determineAxis(id[0].toLowerCase(),scaleOptions))return id;throw new Error("Cannot determine type of '".concat(name,"' axis. Please provide 'axis' or 'position' option."))}function initOptions(config){const options=config.options||(config.options={});options.plugins=valueOrDefault(options.plugins,{}),options.scales=function(config,options){const chartDefaults=overrides[config.type]||{scales:{}},configScales=options.scales||{},chartIndexAxis=getIndexAxis(config.type,options),scales=Object.create(null);return Object.keys(configScales).forEach((id=>{const scaleConf=configScales[id];if(!isObject(scaleConf))return console.error("Invalid scale configuration for scale: ".concat(id));if(scaleConf._proxy)return console.warn("Ignoring resolver passed as options for scale: ".concat(id));const axis=determineAxis(id,scaleConf),defaultId=function(axis,indexAxis){return axis===indexAxis?"_index_":"_value_"}(axis,chartIndexAxis),defaultScaleOptions=chartDefaults.scales||{};scales[id]=mergeIf(Object.create(null),[{axis:axis},scaleConf,defaultScaleOptions[axis],defaultScaleOptions[defaultId]])})),config.data.datasets.forEach((dataset=>{const type=dataset.type||config.type,indexAxis=dataset.indexAxis||getIndexAxis(type,options),defaultScaleOptions=(overrides[type]||{}).scales||{};Object.keys(defaultScaleOptions).forEach((defaultID=>{const axis=function(id,indexAxis){let axis=id;return"_index_"===id?axis=indexAxis:"_value_"===id&&(axis="x"===indexAxis?"y":"x"),axis}(defaultID,indexAxis),id=dataset[axis+"AxisID"]||axis;scales[id]=scales[id]||Object.create(null),mergeIf(scales[id],[{axis:axis},configScales[id],defaultScaleOptions[defaultID]])}))})),Object.keys(scales).forEach((key=>{const scale=scales[key];mergeIf(scale,[defaults.scales[scale.type],defaults.scale])})),scales}(config,options)}function initData(data){return(data=data||{}).datasets=data.datasets||[],data.labels=data.labels||[],data}const keyCache=new Map,keysCached=new Set;function cachedKeys(cacheKey,generate){let keys=keyCache.get(cacheKey);return keys||(keys=generate(),keyCache.set(cacheKey,keys),keysCached.add(keys)),keys}const addIfFound=(set,obj,key)=>{const opts=resolveObjectKey(obj,key);void 0!==opts&&set.add(opts)};class Config{constructor(config){this._config=function(config){return(config=config||{}).data=initData(config.data),initOptions(config),config}(config),this._scopeCache=new Map,this._resolverCache=new Map}get platform(){return this._config.platform}get type(){return this._config.type}set type(type){this._config.type=type}get data(){return this._config.data}set data(data){this._config.data=initData(data)}get options(){return this._config.options}set options(options){this._config.options=options}get plugins(){return this._config.plugins}update(){const config=this._config;this.clearCache(),initOptions(config)}clearCache(){this._scopeCache.clear(),this._resolverCache.clear()}datasetScopeKeys(datasetType){return cachedKeys(datasetType,(()=>[["datasets.".concat(datasetType),""]]))}datasetAnimationScopeKeys(datasetType,transition){return cachedKeys("".concat(datasetType,".transition.").concat(transition),(()=>[["datasets.".concat(datasetType,".transitions.").concat(transition),"transitions.".concat(transition)],["datasets.".concat(datasetType),""]]))}datasetElementScopeKeys(datasetType,elementType){return cachedKeys("".concat(datasetType,"-").concat(elementType),(()=>[["datasets.".concat(datasetType,".elements.").concat(elementType),"datasets.".concat(datasetType),"elements.".concat(elementType),""]]))}pluginScopeKeys(plugin){const id=plugin.id,type=this.type;return cachedKeys("".concat(type,"-plugin-").concat(id),(()=>[["plugins.".concat(id),...plugin.additionalOptionScopes||[]]]))}_cachedScopes(mainScope,resetCache){const _scopeCache=this._scopeCache;let cache=_scopeCache.get(mainScope);return cache&&!resetCache||(cache=new Map,_scopeCache.set(mainScope,cache)),cache}getOptionScopes(mainScope,keyLists,resetCache){const{options:options,type:type}=this,cache=this._cachedScopes(mainScope,resetCache),cached=cache.get(keyLists);if(cached)return cached;const scopes=new Set;keyLists.forEach((keys=>{mainScope&&(scopes.add(mainScope),keys.forEach((key=>addIfFound(scopes,mainScope,key)))),keys.forEach((key=>addIfFound(scopes,options,key))),keys.forEach((key=>addIfFound(scopes,overrides[type]||{},key))),keys.forEach((key=>addIfFound(scopes,defaults,key))),keys.forEach((key=>addIfFound(scopes,descriptors,key)))}));const array=Array.from(scopes);return 0===array.length&&array.push(Object.create(null)),keysCached.has(keyLists)&&cache.set(keyLists,array),array}chartOptionScopes(){const{options:options,type:type}=this;return[options,overrides[type]||{},defaults.datasets[type]||{},{type:type},defaults,descriptors]}resolveNamedOptions(scopes,names,context){let prefixes=arguments.length>3&&void 0!==arguments[3]?arguments[3]:[""];const result={$shared:!0},{resolver:resolver,subPrefixes:subPrefixes}=getResolver(this._resolverCache,scopes,prefixes);let options=resolver;(function(proxy,names){const{isScriptable:isScriptable,isIndexable:isIndexable}=_descriptors(proxy);for(const prop of names){const scriptable=isScriptable(prop),indexable=isIndexable(prop),value=(indexable||scriptable)&&proxy[prop];if(scriptable&&(isFunction(value)||hasFunction(value))||indexable&&isArray(value))return!0}return!1})(resolver,names)&&(result.$shared=!1,options=_attachContext(resolver,context=isFunction(context)?context():context,this.createResolver(scopes,context,subPrefixes)));for(const prop of names)result[prop]=options[prop];return result}createResolver(scopes,context){let prefixes=arguments.length>2&&void 0!==arguments[2]?arguments[2]:[""],descriptorDefaults=arguments.length>3?arguments[3]:void 0;const{resolver:resolver}=getResolver(this._resolverCache,scopes,prefixes);return isObject(context)?_attachContext(resolver,context,void 0,descriptorDefaults):resolver}}function getResolver(resolverCache,scopes,prefixes){let cache=resolverCache.get(scopes);cache||(cache=new Map,resolverCache.set(scopes,cache));const cacheKey=prefixes.join();let cached=cache.get(cacheKey);return cached||(cached={resolver:_createResolver(scopes,prefixes),subPrefixes:prefixes.filter((p=>!p.toLowerCase().includes("hover")))},cache.set(cacheKey,cached)),cached}const hasFunction=value=>isObject(value)&&Object.getOwnPropertyNames(value).reduce(((acc,key)=>acc||isFunction(value[key])),!1),KNOWN_POSITIONS=["top","bottom","left","right","chartArea"];function positionIsHorizontal(position,axis){return"top"===position||"bottom"===position||-1===KNOWN_POSITIONS.indexOf(position)&&"x"===axis}function compare2Level(l1,l2){return function(a,b){return a[l1]===b[l1]?a[l2]-b[l2]:a[l1]-b[l1]}}function onAnimationsComplete(context){const chart=context.chart,animationOptions=chart.options.animation;chart.notifyPlugins("afterRender"),callback(animationOptions&&animationOptions.onComplete,[context],chart)}function onAnimationProgress(context){const chart=context.chart,animationOptions=chart.options.animation;callback(animationOptions&&animationOptions.onProgress,[context],chart)}function getCanvas(item){return _isDomSupported()&&"string"==typeof item?item=document.getElementById(item):item&&item.length&&(item=item[0]),item&&item.canvas&&(item=item.canvas),item}const instances={},getChart=key=>{const canvas=getCanvas(key);return Object.values(instances).filter((c=>c.canvas===canvas)).pop()};function moveNumericKeys(obj,start,move){const keys=Object.keys(obj);for(const key of keys){const intKey=+key;if(intKey>=start){const value=obj[key];delete obj[key],(move>0||intKey>start)&&(obj[intKey+move]=value)}}}class Chart{static register(){registry.add(...arguments),invalidatePlugins()}static unregister(){registry.remove(...arguments),invalidatePlugins()}constructor(item,userConfig){const config=this.config=new Config(userConfig),initialCanvas=getCanvas(item),existingChart=getChart(initialCanvas);if(existingChart)throw new Error("Canvas is already in use. Chart with ID '"+existingChart.id+"' must be destroyed before the canvas with ID '"+existingChart.canvas.id+"' can be reused.");const options=config.createResolver(config.chartOptionScopes(),this.getContext());this.platform=new(config.platform||_detectPlatform(initialCanvas)),this.platform.updateConfig(config);const context=this.platform.acquireContext(initialCanvas,options.aspectRatio),canvas=context&&context.canvas,height=canvas&&canvas.height,width=canvas&&canvas.width;this.id=uid(),this.ctx=context,this.canvas=canvas,this.width=width,this.height=height,this._options=options,this._aspectRatio=this.aspectRatio,this._layers=[],this._metasets=[],this._stacks=void 0,this.boxes=[],this.currentDevicePixelRatio=void 0,this.chartArea=void 0,this._active=[],this._lastEvent=void 0,this._listeners={},this._responsiveListeners=void 0,this._sortedMetasets=[],this.scales={},this._plugins=new PluginService,this.$proxies={},this._hiddenIndices={},this.attached=!1,this._animationsDisabled=void 0,this.$context=void 0,this._doResize=debounce((mode=>this.update(mode)),options.resizeDelay||0),this._dataChanges=[],instances[this.id]=this,context&&canvas?(animator.listen(this,"complete",onAnimationsComplete),animator.listen(this,"progress",onAnimationProgress),this._initialize(),this.attached&&this.update()):console.error("Failed to create chart: can't acquire context from the given item")}get aspectRatio(){const{options:{aspectRatio:aspectRatio,maintainAspectRatio:maintainAspectRatio},width:width,height:height,_aspectRatio:_aspectRatio}=this;return isNullOrUndef(aspectRatio)?maintainAspectRatio&&_aspectRatio?_aspectRatio:height?width/height:null:aspectRatio}get data(){return this.config.data}set data(data){this.config.data=data}get options(){return this._options}set options(options){this.config.options=options}get registry(){return registry}_initialize(){return this.notifyPlugins("beforeInit"),this.options.responsive?this.resize():retinaScale(this,this.options.devicePixelRatio),this.bindEvents(),this.notifyPlugins("afterInit"),this}clear(){return clearCanvas(this.canvas,this.ctx),this}stop(){return animator.stop(this),this}resize(width,height){animator.running(this)?this._resizeBeforeDraw={width:width,height:height}:this._resize(width,height)}_resize(width,height){const options=this.options,canvas=this.canvas,aspectRatio=options.maintainAspectRatio&&this.aspectRatio,newSize=this.platform.getMaximumSize(canvas,width,height,aspectRatio),newRatio=options.devicePixelRatio||this.platform.getDevicePixelRatio(),mode=this.width?"resize":"attach";this.width=newSize.width,this.height=newSize.height,this._aspectRatio=this.aspectRatio,retinaScale(this,newRatio,!0)&&(this.notifyPlugins("resize",{size:newSize}),callback(options.onResize,[this,newSize],this),this.attached&&this._doResize(mode)&&this.render())}ensureScalesHaveIDs(){each(this.options.scales||{},((axisOptions,axisID)=>{axisOptions.id=axisID}))}buildOrUpdateScales(){const options=this.options,scaleOpts=options.scales,scales=this.scales,updated=Object.keys(scales).reduce(((obj,id)=>(obj[id]=!1,obj)),{});let items=[];scaleOpts&&(items=items.concat(Object.keys(scaleOpts).map((id=>{const scaleOptions=scaleOpts[id],axis=determineAxis(id,scaleOptions),isRadial="r"===axis,isHorizontal="x"===axis;return{options:scaleOptions,dposition:isRadial?"chartArea":isHorizontal?"bottom":"left",dtype:isRadial?"radialLinear":isHorizontal?"category":"linear"}})))),each(items,(item=>{const scaleOptions=item.options,id=scaleOptions.id,axis=determineAxis(id,scaleOptions),scaleType=valueOrDefault(scaleOptions.type,item.dtype);void 0!==scaleOptions.position&&positionIsHorizontal(scaleOptions.position,axis)===positionIsHorizontal(item.dposition)||(scaleOptions.position=item.dposition),updated[id]=!0;let scale=null;id in scales&&scales[id].type===scaleType?scale=scales[id]:(scale=new(registry.getScale(scaleType))({id:id,type:scaleType,ctx:this.ctx,chart:this}),scales[scale.id]=scale),scale.init(scaleOptions,options)})),each(updated,((hasUpdated,id)=>{hasUpdated||delete scales[id]})),each(scales,(scale=>{layouts.configure(this,scale,scale.options),layouts.addBox(this,scale)}))}_updateMetasets(){const metasets=this._metasets,numData=this.data.datasets.length,numMeta=metasets.length;if(metasets.sort(((a,b)=>a.index-b.index)),numMeta>numData){for(let i=numData;idatasets.length&&delete this._stacks,metasets.forEach(((meta,index)=>{0===datasets.filter((x=>x===meta._dataset)).length&&this._destroyDatasetMeta(index)}))}buildOrUpdateControllers(){const newControllers=[],datasets=this.data.datasets;let i,ilen;for(this._removeUnreferencedMetasets(),i=0,ilen=datasets.length;i{this.getDatasetMeta(datasetIndex).controller.reset()}),this)}reset(){this._resetElements(),this.notifyPlugins("reset")}update(mode){const config=this.config;config.update();const options=this._options=config.createResolver(config.chartOptionScopes(),this.getContext()),animsDisabled=this._animationsDisabled=!options.animation;if(this._updateScales(),this._checkEventBindings(),this._updateHiddenIndices(),this._plugins.invalidate(),!1===this.notifyPlugins("beforeUpdate",{mode:mode,cancelable:!0}))return;const newControllers=this.buildOrUpdateControllers();this.notifyPlugins("beforeElementsUpdate");let minPadding=0;for(let i=0,ilen=this.data.datasets.length;i{controller.reset()})),this._updateDatasets(mode),this.notifyPlugins("afterUpdate",{mode:mode}),this._layers.sort(compare2Level("z","_idx"));const{_active:_active,_lastEvent:_lastEvent}=this;_lastEvent?this._eventHandler(_lastEvent,!0):_active.length&&this._updateHoverStyles(_active,_active,!0),this.render()}_updateScales(){each(this.scales,(scale=>{layouts.removeBox(this,scale)})),this.ensureScalesHaveIDs(),this.buildOrUpdateScales()}_checkEventBindings(){const options=this.options,existingEvents=new Set(Object.keys(this._listeners)),newEvents=new Set(options.events);setsEqual(existingEvents,newEvents)&&!!this._responsiveListeners===options.responsive||(this.unbindEvents(),this.bindEvents())}_updateHiddenIndices(){const{_hiddenIndices:_hiddenIndices}=this,changes=this._getUniformDataChanges()||[];for(const{method:method,start:start,count:count}of changes)moveNumericKeys(_hiddenIndices,start,"_removeElements"===method?-count:count)}_getUniformDataChanges(){const _dataChanges=this._dataChanges;if(!_dataChanges||!_dataChanges.length)return;this._dataChanges=[];const datasetCount=this.data.datasets.length,makeSet=idx=>new Set(_dataChanges.filter((c=>c[0]===idx)).map(((c,i)=>i+","+c.splice(1).join(",")))),changeSet=makeSet(0);for(let i=1;ic.split(","))).map((a=>({method:a[1],start:+a[2],count:+a[3]})))}_updateLayout(minPadding){if(!1===this.notifyPlugins("beforeLayout",{cancelable:!0}))return;layouts.update(this,this.width,this.height,minPadding);const area=this.chartArea,noArea=area.width<=0||area.height<=0;this._layers=[],each(this.boxes,(box=>{noArea&&"chartArea"===box.position||(box.configure&&box.configure(),this._layers.push(...box._layers()))}),this),this._layers.forEach(((item,index)=>{item._idx=index})),this.notifyPlugins("afterLayout")}_updateDatasets(mode){if(!1!==this.notifyPlugins("beforeDatasetsUpdate",{mode:mode,cancelable:!0})){for(let i=0,ilen=this.data.datasets.length;i=0;--i)this._drawDataset(metasets[i]);this.notifyPlugins("afterDatasetsDraw")}_drawDataset(meta){const ctx=this.ctx,clip=meta._clip,useClip=!clip.disabled,area=function(meta){const{xScale:xScale,yScale:yScale}=meta;if(xScale&&yScale)return{left:xScale.left,right:xScale.right,top:yScale.top,bottom:yScale.bottom}}(meta)||this.chartArea,args={meta:meta,index:meta.index,cancelable:!0};!1!==this.notifyPlugins("beforeDatasetDraw",args)&&(useClip&&clipArea(ctx,{left:!1===clip.left?0:area.left-clip.left,right:!1===clip.right?this.width:area.right+clip.right,top:!1===clip.top?0:area.top-clip.top,bottom:!1===clip.bottom?this.height:area.bottom+clip.bottom}),meta.controller.draw(),useClip&&unclipArea(ctx),args.cancelable=!1,this.notifyPlugins("afterDatasetDraw",args))}isPointInArea(point){return _isPointInArea(point,this.chartArea,this._minPadding)}getElementsAtEventForMode(e,mode,options,useFinalPosition){const method=Interaction.modes[mode];return"function"==typeof method?method(this,e,options,useFinalPosition):[]}getDatasetMeta(datasetIndex){const dataset=this.data.datasets[datasetIndex],metasets=this._metasets;let meta=metasets.filter((x=>x&&x._dataset===dataset)).pop();return meta||(meta={type:null,data:[],dataset:null,controller:null,hidden:null,xAxisID:null,yAxisID:null,order:dataset&&dataset.order||0,index:datasetIndex,_dataset:dataset,_parsed:[],_sorted:!1},metasets.push(meta)),meta}getContext(){return this.$context||(this.$context=createContext(null,{chart:this,type:"chart"}))}getVisibleDatasetCount(){return this.getSortedVisibleDatasetMetas().length}isDatasetVisible(datasetIndex){const dataset=this.data.datasets[datasetIndex];if(!dataset)return!1;const meta=this.getDatasetMeta(datasetIndex);return"boolean"==typeof meta.hidden?!meta.hidden:!dataset.hidden}setDatasetVisibility(datasetIndex,visible){this.getDatasetMeta(datasetIndex).hidden=!visible}toggleDataVisibility(index){this._hiddenIndices[index]=!this._hiddenIndices[index]}getDataVisibility(index){return!this._hiddenIndices[index]}_updateVisibility(datasetIndex,dataIndex,visible){const mode=visible?"show":"hide",meta=this.getDatasetMeta(datasetIndex),anims=meta.controller._resolveAnimations(void 0,mode);defined(dataIndex)?(meta.data[dataIndex].hidden=!visible,this.update()):(this.setDatasetVisibility(datasetIndex,visible),anims.update(meta,{visible:visible}),this.update((ctx=>ctx.datasetIndex===datasetIndex?mode:void 0)))}hide(datasetIndex,dataIndex){this._updateVisibility(datasetIndex,dataIndex,!1)}show(datasetIndex,dataIndex){this._updateVisibility(datasetIndex,dataIndex,!0)}_destroyDatasetMeta(datasetIndex){const meta=this._metasets[datasetIndex];meta&&meta.controller&&meta.controller._destroy(),delete this._metasets[datasetIndex]}_stop(){let i,ilen;for(this.stop(),animator.remove(this),i=0,ilen=this.data.datasets.length;i{platform.addEventListener(this,type,listener),listeners[type]=listener},listener=(e,x,y)=>{e.offsetX=x,e.offsetY=y,this._eventHandler(e)};each(this.options.events,(type=>_add(type,listener)))}bindResponsiveEvents(){this._responsiveListeners||(this._responsiveListeners={});const listeners=this._responsiveListeners,platform=this.platform,_add=(type,listener)=>{platform.addEventListener(this,type,listener),listeners[type]=listener},_remove=(type,listener)=>{listeners[type]&&(platform.removeEventListener(this,type,listener),delete listeners[type])},listener=(width,height)=>{this.canvas&&this.resize(width,height)};let detached;const attached=()=>{_remove("attach",attached),this.attached=!0,this.resize(),_add("resize",listener),_add("detach",detached)};detached=()=>{this.attached=!1,_remove("resize",listener),this._stop(),this._resize(0,0),_add("attach",attached)},platform.isAttached(this.canvas)?attached():detached()}unbindEvents(){each(this._listeners,((listener,type)=>{this.platform.removeEventListener(this,type,listener)})),this._listeners={},each(this._responsiveListeners,((listener,type)=>{this.platform.removeEventListener(this,type,listener)})),this._responsiveListeners=void 0}updateHoverStyle(items,mode,enabled){const prefix=enabled?"set":"remove";let meta,item,i,ilen;for("dataset"===mode&&(meta=this.getDatasetMeta(items[0].datasetIndex),meta.controller["_"+prefix+"DatasetHoverStyle"]()),i=0,ilen=items.length;i{let{datasetIndex:datasetIndex,index:index}=_ref4;const meta=this.getDatasetMeta(datasetIndex);if(!meta)throw new Error("No dataset found at index "+datasetIndex);return{datasetIndex:datasetIndex,element:meta.data[index],index:index}}));!_elementsEqual(active,lastActive)&&(this._active=active,this._lastEvent=null,this._updateHoverStyles(active,lastActive))}notifyPlugins(hook,args,filter){return this._plugins.notify(this,hook,args,filter)}isPluginEnabled(pluginId){return 1===this._plugins._cache.filter((p=>p.plugin.id===pluginId)).length}_updateHoverStyles(active,lastActive,replay){const hoverOptions=this.options.hover,diff=(a,b)=>a.filter((x=>!b.some((y=>x.datasetIndex===y.datasetIndex&&x.index===y.index)))),deactivated=diff(lastActive,active),activated=replay?active:diff(active,lastActive);deactivated.length&&this.updateHoverStyle(deactivated,hoverOptions.mode,!1),activated.length&&hoverOptions.mode&&this.updateHoverStyle(activated,hoverOptions.mode,!0)}_eventHandler(e,replay){const args={event:e,replay:replay,cancelable:!0,inChartArea:this.isPointInArea(e)},eventFilter=plugin=>(plugin.options.events||this.options.events).includes(e.native.type);if(!1===this.notifyPlugins("beforeEvent",args,eventFilter))return;const changed=this._handleEvent(e,replay,args.inChartArea);return args.cancelable=!1,this.notifyPlugins("afterEvent",args,eventFilter),(changed||args.changed)&&this.render(),this}_handleEvent(e,replay,inChartArea){const{_active:lastActive=[],options:options}=this,useFinalPosition=replay,active=this._getActiveElements(e,lastActive,inChartArea,useFinalPosition),isClick=_isClickEvent(e),lastEvent=function(e,lastEvent,inChartArea,isClick){return inChartArea&&"mouseout"!==e.type?isClick?lastEvent:e:null}(e,this._lastEvent,inChartArea,isClick);inChartArea&&(this._lastEvent=null,callback(options.onHover,[e,active,this],this),isClick&&callback(options.onClick,[e,active,this],this));const changed=!_elementsEqual(active,lastActive);return(changed||replay)&&(this._active=active,this._updateHoverStyles(active,lastActive,replay)),this._lastEvent=lastEvent,changed}_getActiveElements(e,lastActive,inChartArea,useFinalPosition){if("mouseout"===e.type)return[];if(!inChartArea)return lastActive;const hoverOptions=this.options.hover;return this.getElementsAtEventForMode(e,hoverOptions.mode,hoverOptions,useFinalPosition)}}function invalidatePlugins(){return each(Chart.instances,(chart=>chart._plugins.invalidate()))}function abstract(){throw new Error("This method is not implemented: Check that a complete date adapter is provided.")}_defineProperty(Chart,"defaults",defaults),_defineProperty(Chart,"instances",instances),_defineProperty(Chart,"overrides",overrides),_defineProperty(Chart,"registry",registry),_defineProperty(Chart,"version","4.2.1"),_defineProperty(Chart,"getChart",getChart);class DateAdapterBase{static override(members){Object.assign(DateAdapterBase.prototype,members)}constructor(options){this.options=options||{}}init(){}formats(){return abstract()}parse(){return abstract()}format(){return abstract()}add(){return abstract()}diff(){return abstract()}startOf(){return abstract()}endOf(){return abstract()}}var _adapters={_date:DateAdapterBase};function computeMinSampleSize(meta){const scale=meta.iScale,values=function(scale,type){if(!scale._cache.$bar){const visibleMetas=scale.getMatchingVisibleMetas(type);let values=[];for(let i=0,ilen=visibleMetas.length;ia-b)))}return scale._cache.$bar}(scale,meta.type);let i,ilen,curr,prev,min=scale._length;const updateMinAndPrev=()=>{32767!==curr&&-32768!==curr&&(defined(prev)&&(min=Math.min(min,Math.abs(curr-prev)||min)),prev=curr)};for(i=0,ilen=values.length;iMath.abs(max)&&(barStart=max,barEnd=min),item[vScale.axis]=barEnd,item._custom={barStart:barStart,barEnd:barEnd,start:startValue,end:endValue,min:min,max:max}}(entry,item,vScale,i):item[vScale.axis]=vScale.parse(entry,i),item}function parseArrayOrPrimitive(meta,data,start,count){const iScale=meta.iScale,vScale=meta.vScale,labels=iScale.getLabels(),singleScale=iScale===vScale,parsed=[];let i,ilen,item,entry;for(i=start,ilen=start+count;iproperties.x,start="left",end="right"):(reverse=properties.basemeta.controller.options.grouped)),stacked=iScale.options.stacked,stacks=[],skipNull=meta=>{const parsed=meta.controller.getParsed(dataIndex),val=parsed&&parsed[meta.vScale.axis];if(isNullOrUndef(val)||isNaN(val))return!0};for(const meta of metasets)if((void 0===dataIndex||!skipNull(meta))&&((!1===stacked||-1===stacks.indexOf(meta.stack)||void 0===stacked&&void 0===meta.stack)&&stacks.push(meta.stack),meta.index===last))break;return stacks.length||stacks.push(void 0),stacks}_getStackCount(index){return this._getStacks(void 0,index).length}_getStackIndex(datasetIndex,name,dataIndex){const stacks=this._getStacks(datasetIndex,dataIndex),index=void 0!==name?stacks.indexOf(name):-1;return-1===index?stacks.length-1:index}_getRuler(){const opts=this.options,meta=this._cachedMeta,iScale=meta.iScale,pixels=[];let i,ilen;for(i=0,ilen=meta.data.length;i=actualBase?1:-1)}(size,vScale,actualBase)*minBarLength,value===actualBase&&(base-=size/2);const startPixel=vScale.getPixelForDecimal(0),endPixel=vScale.getPixelForDecimal(1),min=Math.min(startPixel,endPixel),max=Math.max(startPixel,endPixel);base=Math.max(Math.min(base,max),min),head=base+size,_stacked&&!floating&&(parsed._stacks[vScale.axis]._visualValues[datasetIndex]=vScale.getValueForPixel(head)-vScale.getValueForPixel(base))}if(base===vScale.getPixelForValue(actualBase)){const halfGrid=sign(size)*vScale.getLineWidthForValue(actualBase)/2;base+=halfGrid,size-=halfGrid}return{size:size,base:base,head:head,center:head+size/2}}_calculateBarIndexPixels(index,ruler){const scale=ruler.scale,options=this.options,skipNull=options.skipNull,maxBarThickness=valueOrDefault(options.maxBarThickness,1/0);let center,size;if(ruler.grouped){const stackCount=skipNull?this._getStackCount(index):ruler.stackCount,range="flex"===options.barThickness?function(index,ruler,options,stackCount){const pixels=ruler.pixels,curr=pixels[index];let prev=index>0?pixels[index-1]:null,next=index=0;--i)max=Math.max(max,data[i].size(this.resolveDataElementOptions(i))/2);return max>0&&max}getLabelAndValue(index){const meta=this._cachedMeta,labels=this.chart.data.labels||[],{xScale:xScale,yScale:yScale}=meta,parsed=this.getParsed(index),x=xScale.getLabelForValue(parsed.x),y=yScale.getLabelForValue(parsed.y),r=parsed._custom;return{label:labels[index]||"",value:"("+x+", "+y+(r?", "+r:"")+")"}}update(mode){const points=this._cachedMeta.data;this.updateElements(points,0,points.length,mode)}updateElements(points,start,count,mode){const reset="reset"===mode,{iScale:iScale,vScale:vScale}=this._cachedMeta,{sharedOptions:sharedOptions,includeOptions:includeOptions}=this._getSharedOptions(start,mode),iAxis=iScale.axis,vAxis=vScale.axis;for(let i=start;i+data[i];if(isObject(data[start])){const{key:key="value"}=this._parsing;getter=i=>+resolveObjectKey(data[i],key)}for(i=start,ilen=start+count;i_angleBetween(angle,startAngle,endAngle,!0)?1:Math.max(a,a*cutout,b,b*cutout),calcMin=(angle,a,b)=>_angleBetween(angle,startAngle,endAngle,!0)?-1:Math.min(a,a*cutout,b,b*cutout),maxX=calcMax(0,startX,endX),maxY=calcMax(HALF_PI,startY,endY),minX=calcMin(PI,startX,endX),minY=calcMin(PI+HALF_PI,startY,endY);ratioX=(maxX-minX)/2,ratioY=(maxY-minY)/2,offsetX=-(maxX+minX)/2,offsetY=-(maxY+minY)/2}return{ratioX:ratioX,ratioY:ratioY,offsetX:offsetX,offsetY:offsetY}}(rotation,circumference,cutout),maxWidth=(chartArea.width-spacing)/ratioX,maxHeight=(chartArea.height-spacing)/ratioY,maxRadius=Math.max(Math.min(maxWidth,maxHeight)/2,0),outerRadius=toDimension(this.options.radius,maxRadius),radiusLength=(outerRadius-Math.max(outerRadius*cutout,0))/this._getVisibleDatasetWeightTotal();this.offsetX=offsetX*outerRadius,this.offsetY=offsetY*outerRadius,meta.total=this.calculateTotal(),this.outerRadius=outerRadius-radiusLength*this._getRingWeightOffset(this.index),this.innerRadius=Math.max(this.outerRadius-radiusLength*chartWeight,0),this.updateElements(arcs,0,arcs.length,mode)}_circumference(i,reset){const opts=this.options,meta=this._cachedMeta,circumference=this._getCircumference();return reset&&opts.animation.animateRotate||!this.chart.getDataVisibility(i)||null===meta._parsed[i]||meta.data[i].hidden?0:this.calculateCircumference(meta._parsed[i]*circumference/TAU)}updateElements(arcs,start,count,mode){const reset="reset"===mode,chart=this.chart,chartArea=chart.chartArea,animationOpts=chart.options.animation,centerX=(chartArea.left+chartArea.right)/2,centerY=(chartArea.top+chartArea.bottom)/2,animateScale=reset&&animationOpts.animateScale,innerRadius=animateScale?0:this.innerRadius,outerRadius=animateScale?0:this.outerRadius,{sharedOptions:sharedOptions,includeOptions:includeOptions}=this._getSharedOptions(start,mode);let i,startAngle=this._getRotation();for(i=0;i0&&!isNaN(value)?TAU*(Math.abs(value)/total):0}getLabelAndValue(index){const meta=this._cachedMeta,chart=this.chart,labels=chart.data.labels||[],value=formatNumber(meta._parsed[index],chart.options.locale);return{label:labels[index]||"",value:value}}getMaxBorderWidth(arcs){let max=0;const chart=this.chart;let i,ilen,meta,controller,options;if(!arcs)for(i=0,ilen=chart.data.datasets.length;i"spacing"!==name,_indexable:name=>"spacing"!==name}),_defineProperty(DoughnutController,"overrides",{aspectRatio:1,plugins:{legend:{labels:{generateLabels(chart){const data=chart.data;if(data.labels.length&&data.datasets.length){const{labels:{pointStyle:pointStyle,color:color}}=chart.legend.options;return data.labels.map(((label,i)=>{const style=chart.getDatasetMeta(0).controller.getStyle(i);return{text:label,fillStyle:style.backgroundColor,strokeStyle:style.borderColor,fontColor:color,lineWidth:style.borderWidth,pointStyle:pointStyle,hidden:!chart.getDataVisibility(i),index:i}}))}return[]}},onClick(e,legendItem,legend){legend.chart.toggleDataVisibility(legendItem.index),legend.chart.update()}}}});class LineController extends DatasetController{initialize(){this.enableOptionSharing=!0,this.supportsDecimation=!0,super.initialize()}update(mode){const meta=this._cachedMeta,{dataset:line,data:points=[],_dataset:_dataset}=meta,animationsDisabled=this.chart._animationsDisabled;let{start:start,count:count}=_getStartAndCountOfVisiblePoints(meta,points,animationsDisabled);this._drawStart=start,this._drawCount=count,_scaleRangesChanged(meta)&&(start=0,count=points.length),line._chart=this.chart,line._datasetIndex=this.index,line._decimated=!!_dataset._decimated,line.points=points;const options=this.resolveDatasetElementOptions(mode);this.options.showLine||(options.borderWidth=0),options.segment=this.options.segment,this.updateElement(line,void 0,{animated:!animationsDisabled,options:options},mode),this.updateElements(points,start,count,mode)}updateElements(points,start,count,mode){const reset="reset"===mode,{iScale:iScale,vScale:vScale,_stacked:_stacked,_dataset:_dataset}=this._cachedMeta,{sharedOptions:sharedOptions,includeOptions:includeOptions}=this._getSharedOptions(start,mode),iAxis=iScale.axis,vAxis=vScale.axis,{spanGaps:spanGaps,segment:segment}=this.options,maxGapLength=isNumber(spanGaps)?spanGaps:Number.POSITIVE_INFINITY,directUpdate=this.chart._animationsDisabled||reset||"none"===mode,end=start+count,pointsCount=points.length;let prevParsed=start>0&&this.getParsed(start-1);for(let i=0;i=end){properties.skip=!0;continue}const parsed=this.getParsed(i),nullData=isNullOrUndef(parsed[vAxis]),iPixel=properties[iAxis]=iScale.getPixelForValue(parsed[iAxis],i),vPixel=properties[vAxis]=reset||nullData?vScale.getBasePixel():vScale.getPixelForValue(_stacked?this.applyStack(vScale,parsed,_stacked):parsed[vAxis],i);properties.skip=isNaN(iPixel)||isNaN(vPixel)||nullData,properties.stop=i>0&&Math.abs(parsed[iAxis]-prevParsed[iAxis])>maxGapLength,segment&&(properties.parsed=parsed,properties.raw=_dataset.data[i]),includeOptions&&(properties.options=sharedOptions||this.resolveDataElementOptions(i,point.active?"active":mode)),directUpdate||this.updateElement(point,i,properties,mode),prevParsed=parsed}}getMaxOverflow(){const meta=this._cachedMeta,dataset=meta.dataset,border=dataset.options&&dataset.options.borderWidth||0,data=meta.data||[];if(!data.length)return border;const firstPoint=data[0].size(this.resolveDataElementOptions(0)),lastPoint=data[data.length-1].size(this.resolveDataElementOptions(data.length-1));return Math.max(border,firstPoint,lastPoint)/2}draw(){const meta=this._cachedMeta;meta.dataset.updateControlPoints(this.chart.chartArea,meta.iScale.axis),super.draw()}}_defineProperty(LineController,"id","line"),_defineProperty(LineController,"defaults",{datasetElementType:"line",dataElementType:"point",showLine:!0,spanGaps:!1}),_defineProperty(LineController,"overrides",{scales:{_index_:{type:"category"},_value_:{type:"linear"}}});class PolarAreaController extends DatasetController{constructor(chart,datasetIndex){super(chart,datasetIndex),this.innerRadius=void 0,this.outerRadius=void 0}getLabelAndValue(index){const meta=this._cachedMeta,chart=this.chart,labels=chart.data.labels||[],value=formatNumber(meta._parsed[index].r,chart.options.locale);return{label:labels[index]||"",value:value}}parseObjectData(meta,data,start,count){return _parseObjectDataRadialScale.bind(this)(meta,data,start,count)}update(mode){const arcs=this._cachedMeta.data;this._updateRadius(),this.updateElements(arcs,0,arcs.length,mode)}getMinMax(){const meta=this._cachedMeta,range={min:Number.POSITIVE_INFINITY,max:Number.NEGATIVE_INFINITY};return meta.data.forEach(((element,index)=>{const parsed=this.getParsed(index).r;!isNaN(parsed)&&this.chart.getDataVisibility(index)&&(parsedrange.max&&(range.max=parsed))})),range}_updateRadius(){const chart=this.chart,chartArea=chart.chartArea,opts=chart.options,minSize=Math.min(chartArea.right-chartArea.left,chartArea.bottom-chartArea.top),outerRadius=Math.max(minSize/2,0),radiusLength=(outerRadius-Math.max(opts.cutoutPercentage?outerRadius/100*opts.cutoutPercentage:1,0))/chart.getVisibleDatasetCount();this.outerRadius=outerRadius-radiusLength*this.index,this.innerRadius=this.outerRadius-radiusLength}updateElements(arcs,start,count,mode){const reset="reset"===mode,chart=this.chart,animationOpts=chart.options.animation,scale=this._cachedMeta.rScale,centerX=scale.xCenter,centerY=scale.yCenter,datasetStartAngle=scale.getIndexAngle(0)-.5*PI;let i,angle=datasetStartAngle;const defaultAngle=360/this.countVisibleElements();for(i=0;i{!isNaN(this.getParsed(index).r)&&this.chart.getDataVisibility(index)&&count++})),count}_computeAngle(index,mode,defaultAngle){return this.chart.getDataVisibility(index)?toRadians(this.resolveDataElementOptions(index,mode).angle||defaultAngle):0}}_defineProperty(PolarAreaController,"id","polarArea"),_defineProperty(PolarAreaController,"defaults",{dataElementType:"arc",animation:{animateRotate:!0,animateScale:!0},animations:{numbers:{type:"number",properties:["x","y","startAngle","endAngle","innerRadius","outerRadius"]}},indexAxis:"r",startAngle:0}),_defineProperty(PolarAreaController,"overrides",{aspectRatio:1,plugins:{legend:{labels:{generateLabels(chart){const data=chart.data;if(data.labels.length&&data.datasets.length){const{labels:{pointStyle:pointStyle,color:color}}=chart.legend.options;return data.labels.map(((label,i)=>{const style=chart.getDatasetMeta(0).controller.getStyle(i);return{text:label,fillStyle:style.backgroundColor,strokeStyle:style.borderColor,fontColor:color,lineWidth:style.borderWidth,pointStyle:pointStyle,hidden:!chart.getDataVisibility(i),index:i}}))}return[]}},onClick(e,legendItem,legend){legend.chart.toggleDataVisibility(legendItem.index),legend.chart.update()}}},scales:{r:{type:"radialLinear",angleLines:{display:!1},beginAtZero:!0,grid:{circular:!0},pointLabels:{display:!1},startAngle:0}}});class PieController extends DoughnutController{}_defineProperty(PieController,"id","pie"),_defineProperty(PieController,"defaults",{cutout:0,rotation:0,circumference:360,radius:"100%"});class RadarController extends DatasetController{getLabelAndValue(index){const vScale=this._cachedMeta.vScale,parsed=this.getParsed(index);return{label:vScale.getLabels()[index],value:""+vScale.getLabelForValue(parsed[vScale.axis])}}parseObjectData(meta,data,start,count){return _parseObjectDataRadialScale.bind(this)(meta,data,start,count)}update(mode){const meta=this._cachedMeta,line=meta.dataset,points=meta.data||[],labels=meta.iScale.getLabels();if(line.points=points,"resize"!==mode){const options=this.resolveDatasetElementOptions(mode);this.options.showLine||(options.borderWidth=0);const properties={_loop:!0,_fullLoop:labels.length===points.length,options:options};this.updateElement(line,void 0,properties,mode)}this.updateElements(points,0,points.length,mode)}updateElements(points,start,count,mode){const scale=this._cachedMeta.rScale,reset="reset"===mode;for(let i=start;i0&&this.getParsed(start-1);for(let i=start;i0&&Math.abs(parsed[iAxis]-prevParsed[iAxis])>maxGapLength,segment&&(properties.parsed=parsed,properties.raw=_dataset.data[i]),includeOptions&&(properties.options=sharedOptions||this.resolveDataElementOptions(i,point.active?"active":mode)),directUpdate||this.updateElement(point,i,properties,mode),prevParsed=parsed}this.updateSharedOptions(sharedOptions,mode,firstOpts)}getMaxOverflow(){const meta=this._cachedMeta,data=meta.data||[];if(!this.options.showLine){let max=0;for(let i=data.length-1;i>=0;--i)max=Math.max(max,data[i].size(this.resolveDataElementOptions(i))/2);return max>0&&max}const dataset=meta.dataset,border=dataset.options&&dataset.options.borderWidth||0;if(!data.length)return border;const firstPoint=data[0].size(this.resolveDataElementOptions(0)),lastPoint=data[data.length-1].size(this.resolveDataElementOptions(data.length-1));return Math.max(border,firstPoint,lastPoint)/2}}_defineProperty(ScatterController,"id","scatter"),_defineProperty(ScatterController,"defaults",{datasetElementType:!1,dataElementType:"point",showLine:!1,fill:!1}),_defineProperty(ScatterController,"overrides",{interaction:{mode:"point"},scales:{x:{type:"linear"},y:{type:"linear"}}});var controllers=Object.freeze({__proto__:null,BarController:BarController,BubbleController:BubbleController,DoughnutController:DoughnutController,LineController:LineController,PolarAreaController:PolarAreaController,PieController:PieController,RadarController:RadarController,ScatterController:ScatterController});function parseBorderRadius$1(arc,innerRadius,outerRadius,angleDelta){const o=_readValueToProps(arc.options.borderRadius,["outerStart","outerEnd","innerStart","innerEnd"]),halfThickness=(outerRadius-innerRadius)/2,innerLimit=Math.min(halfThickness,angleDelta*innerRadius/2),computeOuterLimit=val=>{const outerArcLimit=(outerRadius-Math.min(halfThickness,val))*angleDelta/2;return _limitValue(val,0,Math.min(halfThickness,outerArcLimit))};return{outerStart:computeOuterLimit(o.outerStart),outerEnd:computeOuterLimit(o.outerEnd),innerStart:_limitValue(o.innerStart,0,innerLimit),innerEnd:_limitValue(o.innerEnd,0,innerLimit)}}function rThetaToXY(r,theta,x,y){return{x:x+r*Math.cos(theta),y:y+r*Math.sin(theta)}}function pathArc(ctx,element,offset,spacing,end,circular){const{x:x,y:y,startAngle:start,pixelMargin:pixelMargin,innerRadius:innerR}=element,outerRadius=Math.max(element.outerRadius+spacing+offset-pixelMargin,0),innerRadius=innerR>0?innerR+spacing+offset+pixelMargin:0;let spacingOffset=0;const alpha=end-start;if(spacing){const avNogSpacingRadius=((innerR>0?innerR-spacing:0)+(outerRadius>0?outerRadius-spacing:0))/2;spacingOffset=(alpha-(0!==avNogSpacingRadius?alpha*avNogSpacingRadius/(avNogSpacingRadius+spacing):alpha))/2}const angleOffset=(alpha-Math.max(.001,alpha*outerRadius-offset/PI)/outerRadius)/2,startAngle=start+angleOffset+spacingOffset,endAngle=end-angleOffset-spacingOffset,{outerStart:outerStart,outerEnd:outerEnd,innerStart:innerStart,innerEnd:innerEnd}=parseBorderRadius$1(element,innerRadius,outerRadius,endAngle-startAngle),outerStartAdjustedRadius=outerRadius-outerStart,outerEndAdjustedRadius=outerRadius-outerEnd,outerStartAdjustedAngle=startAngle+outerStart/outerStartAdjustedRadius,outerEndAdjustedAngle=endAngle-outerEnd/outerEndAdjustedRadius,innerStartAdjustedRadius=innerRadius+innerStart,innerEndAdjustedRadius=innerRadius+innerEnd,innerStartAdjustedAngle=startAngle+innerStart/innerStartAdjustedRadius,innerEndAdjustedAngle=endAngle-innerEnd/innerEndAdjustedRadius;if(ctx.beginPath(),circular){const outerMidAdjustedAngle=(outerStartAdjustedAngle+outerEndAdjustedAngle)/2;if(ctx.arc(x,y,outerRadius,outerStartAdjustedAngle,outerMidAdjustedAngle),ctx.arc(x,y,outerRadius,outerMidAdjustedAngle,outerEndAdjustedAngle),outerEnd>0){const pCenter=rThetaToXY(outerEndAdjustedRadius,outerEndAdjustedAngle,x,y);ctx.arc(pCenter.x,pCenter.y,outerEnd,outerEndAdjustedAngle,endAngle+HALF_PI)}const p4=rThetaToXY(innerEndAdjustedRadius,endAngle,x,y);if(ctx.lineTo(p4.x,p4.y),innerEnd>0){const pCenter1=rThetaToXY(innerEndAdjustedRadius,innerEndAdjustedAngle,x,y);ctx.arc(pCenter1.x,pCenter1.y,innerEnd,endAngle+HALF_PI,innerEndAdjustedAngle+Math.PI)}const innerMidAdjustedAngle=(endAngle-innerEnd/innerRadius+(startAngle+innerStart/innerRadius))/2;if(ctx.arc(x,y,innerRadius,endAngle-innerEnd/innerRadius,innerMidAdjustedAngle,!0),ctx.arc(x,y,innerRadius,innerMidAdjustedAngle,startAngle+innerStart/innerRadius,!0),innerStart>0){const pCenter2=rThetaToXY(innerStartAdjustedRadius,innerStartAdjustedAngle,x,y);ctx.arc(pCenter2.x,pCenter2.y,innerStart,innerStartAdjustedAngle+Math.PI,startAngle-HALF_PI)}const p8=rThetaToXY(outerStartAdjustedRadius,startAngle,x,y);if(ctx.lineTo(p8.x,p8.y),outerStart>0){const pCenter3=rThetaToXY(outerStartAdjustedRadius,outerStartAdjustedAngle,x,y);ctx.arc(pCenter3.x,pCenter3.y,outerStart,startAngle-HALF_PI,outerStartAdjustedAngle)}}else{ctx.moveTo(x,y);const outerStartX=Math.cos(outerStartAdjustedAngle)*outerRadius+x,outerStartY=Math.sin(outerStartAdjustedAngle)*outerRadius+y;ctx.lineTo(outerStartX,outerStartY);const outerEndX=Math.cos(outerEndAdjustedAngle)*outerRadius+x,outerEndY=Math.sin(outerEndAdjustedAngle)*outerRadius+y;ctx.lineTo(outerEndX,outerEndY)}ctx.closePath()}function drawBorder(ctx,element,offset,spacing,circular){const{fullCircles:fullCircles,startAngle:startAngle,circumference:circumference,options:options}=element,{borderWidth:borderWidth,borderJoinStyle:borderJoinStyle}=options,inner="inner"===options.borderAlign;if(!borderWidth)return;inner?(ctx.lineWidth=2*borderWidth,ctx.lineJoin=borderJoinStyle||"round"):(ctx.lineWidth=borderWidth,ctx.lineJoin=borderJoinStyle||"bevel");let endAngle=element.endAngle;if(fullCircles){pathArc(ctx,element,offset,spacing,endAngle,circular);for(let i=0;ipixelMargin?(angleMargin=pixelMargin/innerRadius,ctx.arc(x,y,innerRadius,endAngle+angleMargin,startAngle-angleMargin,!0)):ctx.arc(x,y,pixelMargin,endAngle+HALF_PI,startAngle-HALF_PI),ctx.closePath(),ctx.clip()}(ctx,element,endAngle),fullCircles||(pathArc(ctx,element,offset,spacing,endAngle,circular),ctx.stroke())}class ArcElement extends Element{constructor(cfg){super(),this.options=void 0,this.circumference=void 0,this.startAngle=void 0,this.endAngle=void 0,this.innerRadius=void 0,this.outerRadius=void 0,this.pixelMargin=0,this.fullCircles=0,cfg&&Object.assign(this,cfg)}inRange(chartX,chartY,useFinalPosition){const point=this.getProps(["x","y"],useFinalPosition),{angle:angle,distance:distance}=getAngleFromPoint(point,{x:chartX,y:chartY}),{startAngle:startAngle,endAngle:endAngle,innerRadius:innerRadius,outerRadius:outerRadius,circumference:circumference}=this.getProps(["startAngle","endAngle","innerRadius","outerRadius","circumference"],useFinalPosition),rAdjust=this.options.spacing/2,betweenAngles=valueOrDefault(circumference,endAngle-startAngle)>=TAU||_angleBetween(angle,startAngle,endAngle),withinRadius=_isBetween(distance,innerRadius+rAdjust,outerRadius+rAdjust);return betweenAngles&&withinRadius}getCenterPoint(useFinalPosition){const{x:x,y:y,startAngle:startAngle,endAngle:endAngle,innerRadius:innerRadius,outerRadius:outerRadius}=this.getProps(["x","y","startAngle","endAngle","innerRadius","outerRadius"],useFinalPosition),{offset:offset,spacing:spacing}=this.options,halfAngle=(startAngle+endAngle)/2,halfRadius=(innerRadius+outerRadius+spacing+offset)/2;return{x:x+Math.cos(halfAngle)*halfRadius,y:y+Math.sin(halfAngle)*halfRadius}}tooltipPosition(useFinalPosition){return this.getCenterPoint(useFinalPosition)}draw(ctx){const{options:options,circumference:circumference}=this,offset=(options.offset||0)/4,spacing=(options.spacing||0)/2,circular=options.circular;if(this.pixelMargin="inner"===options.borderAlign?.33:0,this.fullCircles=circumference>TAU?Math.floor(circumference/TAU):0,0===circumference||this.innerRadius<0||this.outerRadius<0)return;ctx.save();const halfAngle=(this.startAngle+this.endAngle)/2;ctx.translate(Math.cos(halfAngle)*offset,Math.sin(halfAngle)*offset);const radiusOffset=offset*(1-Math.sin(Math.min(PI,circumference||0)));ctx.fillStyle=options.backgroundColor,ctx.strokeStyle=options.borderColor,function(ctx,element,offset,spacing,circular){const{fullCircles:fullCircles,startAngle:startAngle,circumference:circumference}=element;let endAngle=element.endAngle;if(fullCircles){pathArc(ctx,element,offset,spacing,endAngle,circular);for(let i=0;i2&&void 0!==arguments[2]?arguments[2]:options;ctx.lineCap=valueOrDefault(style.borderCapStyle,options.borderCapStyle),ctx.setLineDash(valueOrDefault(style.borderDash,options.borderDash)),ctx.lineDashOffset=valueOrDefault(style.borderDashOffset,options.borderDashOffset),ctx.lineJoin=valueOrDefault(style.borderJoinStyle,options.borderJoinStyle),ctx.lineWidth=valueOrDefault(style.borderWidth,options.borderWidth),ctx.strokeStyle=valueOrDefault(style.borderColor,options.borderColor)}function lineTo(ctx,previous,target){ctx.lineTo(target.x,target.y)}function pathVars(points,segment){let params=arguments.length>2&&void 0!==arguments[2]?arguments[2]:{};const count=points.length,{start:paramsStart=0,end:paramsEnd=count-1}=params,{start:segmentStart,end:segmentEnd}=segment,start=Math.max(paramsStart,segmentStart),end=Math.min(paramsEnd,segmentEnd),outside=paramsStartsegmentEnd&¶msEnd>segmentEnd;return{count:count,start:start,loop:segment.loop,ilen:end(start+(reverse?ilen-index:index))%count,drawX=()=>{minY!==maxY&&(ctx.lineTo(avgX,maxY),ctx.lineTo(avgX,minY),ctx.lineTo(avgX,lastY))};for(move&&(point=points[pointIndex(0)],ctx.moveTo(point.x,point.y)),i=0;i<=ilen;++i){if(point=points[pointIndex(i)],point.skip)continue;const x=point.x,y=point.y,truncX=0|x;truncX===prevX?(ymaxY&&(maxY=y),avgX=(countX*avgX+x)/++countX):(drawX(),ctx.lineTo(x,y),prevX=truncX,countX=0,minY=maxY=y),lastY=y}drawX()}function _getSegmentMethod(line){const opts=line.options,borderDash=opts.borderDash&&opts.borderDash.length;return line._decimated||line._loop||opts.tension||"monotone"===opts.cubicInterpolationMode||opts.stepped||borderDash?pathSegment:fastPathSegment}_defineProperty(ArcElement,"id","arc"),_defineProperty(ArcElement,"defaults",{borderAlign:"center",borderColor:"#fff",borderJoinStyle:void 0,borderRadius:0,borderWidth:2,offset:0,spacing:0,angle:void 0,circular:!0}),_defineProperty(ArcElement,"defaultRoutes",{backgroundColor:"backgroundColor"});const usePath2D="function"==typeof Path2D;function draw(ctx,line,start,count){usePath2D&&!line.options.segment?function(ctx,line,start,count){let path=line._path;path||(path=line._path=new Path2D,line.path(path,start,count)&&path.closePath()),setStyle(ctx,line.options),ctx.stroke(path)}(ctx,line,start,count):function(ctx,line,start,count){const{segments:segments,options:options}=line,segmentMethod=_getSegmentMethod(line);for(const segment of segments)setStyle(ctx,options,segment.style),ctx.beginPath(),segmentMethod(ctx,line,segment,{start:start,end:start+count-1})&&ctx.closePath(),ctx.stroke()}(ctx,line,start,count)}class LineElement extends Element{constructor(cfg){super(),this.animated=!0,this.options=void 0,this._chart=void 0,this._loop=void 0,this._fullLoop=void 0,this._path=void 0,this._points=void 0,this._segments=void 0,this._decimated=!1,this._pointsUpdated=!1,this._datasetIndex=void 0,cfg&&Object.assign(this,cfg)}updateControlPoints(chartArea,indexAxis){const options=this.options;if((options.tension||"monotone"===options.cubicInterpolationMode)&&!options.stepped&&!this._pointsUpdated){const loop=options.spanGaps?this._loop:this._fullLoop;_updateBezierControlPoints(this._points,options,chartArea,loop,indexAxis),this._pointsUpdated=!0}}set points(points){this._points=points,delete this._segments,delete this._path,this._pointsUpdated=!1}get points(){return this._points}get segments(){return this._segments||(this._segments=_computeSegments(this,this.options.segment))}first(){const segments=this.segments,points=this.points;return segments.length&&points[segments[0].start]}last(){const segments=this.segments,points=this.points,count=segments.length;return count&&points[segments[count-1].end]}interpolate(point,property){const options=this.options,value=point[property],points=this.points,segments=_boundSegments(this,{property:property,start:value,end:value});if(!segments.length)return;const result=[],_interpolate=function(options){return options.stepped?_steppedInterpolation:options.tension||"monotone"===options.cubicInterpolationMode?_bezierInterpolation:_pointInLine}(options);let i,ilen;for(i=0,ilen=segments.length;i"borderDash"!==name&&"fill"!==name});class PointElement extends Element{constructor(cfg){super(),this.options=void 0,this.parsed=void 0,this.skip=void 0,this.stop=void 0,cfg&&Object.assign(this,cfg)}inRange(mouseX,mouseY,useFinalPosition){const options=this.options,{x:x,y:y}=this.getProps(["x","y"],useFinalPosition);return Math.pow(mouseX-x,2)+Math.pow(mouseY-y,2)2&&void 0!==arguments[2]?arguments[2]:{};const x=rect.x!==refRect.x?-amount:0,y=rect.y!==refRect.y?-amount:0,w=(rect.x+rect.w!==refRect.x+refRect.w?amount:0)-x,h=(rect.y+rect.h!==refRect.y+refRect.h?amount:0)-y;return{x:rect.x+x,y:rect.y+y,w:rect.w+w,h:rect.h+h,radius:rect.radius}}_defineProperty(PointElement,"id","point"),_defineProperty(PointElement,"defaults",{borderWidth:1,hitRadius:1,hoverBorderWidth:1,hoverRadius:4,pointStyle:"circle",radius:3,rotation:0}),_defineProperty(PointElement,"defaultRoutes",{backgroundColor:"backgroundColor",borderColor:"borderColor"});class BarElement extends Element{constructor(cfg){super(),this.options=void 0,this.horizontal=void 0,this.base=void 0,this.width=void 0,this.height=void 0,this.inflateAmount=void 0,cfg&&Object.assign(this,cfg)}draw(ctx){const{inflateAmount:inflateAmount,options:{borderColor:borderColor,backgroundColor:backgroundColor}}=this,{inner:inner,outer:outer}=boundingRects(this),addRectPath=(radius=outer.radius).topLeft||radius.topRight||radius.bottomLeft||radius.bottomRight?addRoundedRectPath:addNormalRectPath;var radius;ctx.save(),outer.w===inner.w&&outer.h===inner.h||(ctx.beginPath(),addRectPath(ctx,inflateRect(outer,inflateAmount,inner)),ctx.clip(),addRectPath(ctx,inflateRect(inner,-inflateAmount,outer)),ctx.fillStyle=borderColor,ctx.fill("evenodd")),ctx.beginPath(),addRectPath(ctx,inflateRect(inner,inflateAmount)),ctx.fillStyle=backgroundColor,ctx.fill(),ctx.restore()}inRange(mouseX,mouseY,useFinalPosition){return inRange(this,mouseX,mouseY,useFinalPosition)}inXRange(mouseX,useFinalPosition){return inRange(this,mouseX,null,useFinalPosition)}inYRange(mouseY,useFinalPosition){return inRange(this,null,mouseY,useFinalPosition)}getCenterPoint(useFinalPosition){const{x:x,y:y,base:base,horizontal:horizontal}=this.getProps(["x","y","base","horizontal"],useFinalPosition);return{x:horizontal?(x+base)/2:x,y:horizontal?y:(y+base)/2}}getRange(axis){return"x"===axis?this.width/2:this.height/2}}_defineProperty(BarElement,"id","bar"),_defineProperty(BarElement,"defaults",{borderSkipped:"start",borderWidth:0,borderRadius:0,inflateAmount:"auto",pointStyle:void 0}),_defineProperty(BarElement,"defaultRoutes",{backgroundColor:"backgroundColor",borderColor:"borderColor"});var elements=Object.freeze({__proto__:null,ArcElement:ArcElement,LineElement:LineElement,PointElement:PointElement,BarElement:BarElement});function findOrAddLabel(labels,raw,index,addedLabels){const first=labels.indexOf(raw);return-1===first?((labels,raw,index,addedLabels)=>("string"==typeof raw?(index=labels.push(raw)-1,addedLabels.unshift({index:index,label:raw})):isNaN(raw)&&(index=null),index))(labels,raw,index,addedLabels):first!==labels.lastIndexOf(raw)?index:first}function _getLabelForValue(value){const labels=this.getLabels();return value>=0&&valuenull===index?null:_limitValue(Math.round(index),0,max))(index=isFinite(index)&&labels[index]===raw?index:findOrAddLabel(labels,raw,valueOrDefault(index,raw),this._addedLabels),labels.length-1)}determineDataLimits(){const{minDefined:minDefined,maxDefined:maxDefined}=this.getUserBounds();let{min:min,max:max}=this.getMinMax(!0);"ticks"===this.options.bounds&&(minDefined||(min=0),maxDefined||(max=this.getLabels().length-1)),this.min=min,this.max=max}buildTicks(){const min=this.min,max=this.max,offset=this.options.offset,ticks=[];let labels=this.getLabels();labels=0===min&&max===labels.length-1?labels:labels.slice(min,max+1),this._valueRange=Math.max(labels.length-(offset?0:1),1),this._startValue=this.min-(offset?.5:0);for(let value=min;value<=max;value++)ticks.push({value:value});return ticks}getLabelForValue(value){return _getLabelForValue.call(this,value)}configure(){super.configure(),this.isHorizontal()||(this._reversePixels=!this._reversePixels)}getPixelForValue(value){return"number"!=typeof value&&(value=this.parse(value)),null===value?NaN:this.getPixelForDecimal((value-this._startValue)/this._valueRange)}getPixelForTick(index){const ticks=this.ticks;return index<0||index>ticks.length-1?null:this.getPixelForValue(ticks[index].value)}getValueForPixel(pixel){return Math.round(this._startValue+this.getDecimalForPixel(pixel)*this._valueRange)}getBasePixel(){return this.bottom}}function relativeLabelSize(value,minSpacing,_ref6){let{horizontal:horizontal,minRotation:minRotation}=_ref6;const rad=toRadians(minRotation),ratio=(horizontal?Math.sin(rad):Math.cos(rad))||.001,length=.75*minSpacing*(""+value).length;return Math.min(minSpacing/ratio,length)}_defineProperty(CategoryScale,"id","category"),_defineProperty(CategoryScale,"defaults",{ticks:{callback:_getLabelForValue}});class LinearScaleBase extends Scale{constructor(cfg){super(cfg),this.start=void 0,this.end=void 0,this._startValue=void 0,this._endValue=void 0,this._valueRange=0}parse(raw,index){return isNullOrUndef(raw)||("number"==typeof raw||raw instanceof Number)&&!isFinite(+raw)?null:+raw}handleTickRangeOptions(){const{beginAtZero:beginAtZero}=this.options,{minDefined:minDefined,maxDefined:maxDefined}=this.getUserBounds();let{min:min,max:max}=this;const setMin=v=>min=minDefined?min:v,setMax=v=>max=maxDefined?max:v;if(beginAtZero){const minSign=sign(min),maxSign=sign(max);minSign<0&&maxSign<0?setMax(0):minSign>0&&maxSign>0&&setMin(0)}if(min===max){let offset=0===max?1:Math.abs(.05*max);setMax(max+offset),beginAtZero||setMin(min-offset)}this.min=min,this.max=max}getTickLimit(){const tickOpts=this.options.ticks;let maxTicks,{maxTicksLimit:maxTicksLimit,stepSize:stepSize}=tickOpts;return stepSize?(maxTicks=Math.ceil(this.max/stepSize)-Math.floor(this.min/stepSize)+1,maxTicks>1e3&&(console.warn("scales.".concat(this.id,".ticks.stepSize: ").concat(stepSize," would result generating up to ").concat(maxTicks," ticks. Limiting to 1000.")),maxTicks=1e3)):(maxTicks=this.computeTickLimit(),maxTicksLimit=maxTicksLimit||11),maxTicksLimit&&(maxTicks=Math.min(maxTicksLimit,maxTicks)),maxTicks}computeTickLimit(){return Number.POSITIVE_INFINITY}buildTicks(){const opts=this.options,tickOpts=opts.ticks;let maxTicks=this.getTickLimit();maxTicks=Math.max(2,maxTicks);const ticks=function(generationOptions,dataRange){const ticks=[],{bounds:bounds,step:step,min:min,max:max,precision:precision,count:count,maxTicks:maxTicks,maxDigits:maxDigits,includeBounds:includeBounds}=generationOptions,unit=step||1,maxSpaces=maxTicks-1,{min:rmin,max:rmax}=dataRange,minDefined=!isNullOrUndef(min),maxDefined=!isNullOrUndef(max),countDefined=!isNullOrUndef(count),minSpacing=(rmax-rmin)/(maxDigits+1);let factor,niceMin,niceMax,numSpaces,spacing=niceNum((rmax-rmin)/maxSpaces/unit)*unit;if(spacing<1e-14&&!minDefined&&!maxDefined)return[{value:rmin},{value:rmax}];numSpaces=Math.ceil(rmax/spacing)-Math.floor(rmin/spacing),numSpaces>maxSpaces&&(spacing=niceNum(numSpaces*spacing/maxSpaces/unit)*unit),isNullOrUndef(precision)||(factor=Math.pow(10,precision),spacing=Math.ceil(spacing*factor)/factor),"ticks"===bounds?(niceMin=Math.floor(rmin/spacing)*spacing,niceMax=Math.ceil(rmax/spacing)*spacing):(niceMin=rmin,niceMax=rmax),minDefined&&maxDefined&&step&&almostWhole((max-min)/step,spacing/1e3)?(numSpaces=Math.round(Math.min((max-min)/spacing,maxTicks)),spacing=(max-min)/numSpaces,niceMin=min,niceMax=max):countDefined?(niceMin=minDefined?min:niceMin,niceMax=maxDefined?max:niceMax,numSpaces=count-1,spacing=(niceMax-niceMin)/numSpaces):(numSpaces=(niceMax-niceMin)/spacing,numSpaces=almostEquals(numSpaces,Math.round(numSpaces),spacing/1e3)?Math.round(numSpaces):Math.ceil(numSpaces));const decimalPlaces=Math.max(_decimalPlaces(spacing),_decimalPlaces(niceMin));factor=Math.pow(10,isNullOrUndef(precision)?decimalPlaces:precision),niceMin=Math.round(niceMin*factor)/factor,niceMax=Math.round(niceMax*factor)/factor;let j=0;for(minDefined&&(includeBounds&&niceMin!==min?(ticks.push({value:min}),niceMinMath.floor(log10(v)),changeExponent=(v,m)=>Math.pow(10,log10Floor(v)+m);function isMajor(tickVal){return 1==tickVal/Math.pow(10,log10Floor(tickVal))}function steps(min,max,rangeExp){const rangeStep=Math.pow(10,rangeExp),start=Math.floor(min/rangeStep);return Math.ceil(max/rangeStep)-start}function generateTicks(generationOptions,_ref7){let{min:min,max:max}=_ref7;min=finiteOrDefault(generationOptions.min,min);const ticks=[],minExp=log10Floor(min);let exp=function(min,max){let rangeExp=log10Floor(max-min);for(;steps(min,max,rangeExp)>10;)rangeExp++;for(;steps(min,max,rangeExp)<10;)rangeExp--;return Math.min(rangeExp,log10Floor(min))}(min,max),precision=exp<0?Math.pow(10,Math.abs(exp)):1;const stepSize=Math.pow(10,exp),base=minExp>exp?Math.pow(10,minExp):0,start=Math.round((min-base)*precision)/precision,offset=Math.floor((min-base)/stepSize/10)*stepSize*10;let significand=Math.floor((start-offset)/Math.pow(10,exp)),value=finiteOrDefault(generationOptions.min,Math.round((base+offset+significand*Math.pow(10,exp))*precision)/precision);for(;value=10?significand=significand<15?15:20:significand++,significand>=20&&(exp++,significand=2,precision=exp>=0?1:precision),value=Math.round((base+offset+significand*Math.pow(10,exp))*precision)/precision;const lastTick=finiteOrDefault(generationOptions.max,value);return ticks.push({value:lastTick,major:isMajor(lastTick),significand:significand}),ticks}class LogarithmicScale extends Scale{constructor(cfg){super(cfg),this.start=void 0,this.end=void 0,this._startValue=void 0,this._valueRange=0}parse(raw,index){const value=LinearScaleBase.prototype.parse.apply(this,[raw,index]);if(0!==value)return isNumberFinite(value)&&value>0?value:null;this._zero=!0}determineDataLimits(){const{min:min,max:max}=this.getMinMax(!0);this.min=isNumberFinite(min)?Math.max(0,min):null,this.max=isNumberFinite(max)?Math.max(0,max):null,this.options.beginAtZero&&(this._zero=!0),this._zero&&this.min!==this._suggestedMin&&!isNumberFinite(this._userMin)&&(this.min=min===changeExponent(this.min,0)?changeExponent(this.min,-1):changeExponent(this.min,0)),this.handleTickRangeOptions()}handleTickRangeOptions(){const{minDefined:minDefined,maxDefined:maxDefined}=this.getUserBounds();let min=this.min,max=this.max;const setMin=v=>min=minDefined?min:v,setMax=v=>max=maxDefined?max:v;min===max&&(min<=0?(setMin(1),setMax(10)):(setMin(changeExponent(min,-1)),setMax(changeExponent(max,1)))),min<=0&&setMin(changeExponent(max,-1)),max<=0&&setMax(changeExponent(min,1)),this.min=min,this.max=max}buildTicks(){const opts=this.options,ticks=generateTicks({min:this._userMin,max:this._userMax},this);return"ticks"===opts.bounds&&_setMinAndMaxByKey(ticks,this,"value"),opts.reverse?(ticks.reverse(),this.start=this.max,this.end=this.min):(this.start=this.min,this.end=this.max),ticks}getLabelForValue(value){return void 0===value?"0":formatNumber(value,this.chart.options.locale,this.options.ticks.format)}configure(){const start=this.min;super.configure(),this._startValue=log10(start),this._valueRange=log10(this.max)-log10(start)}getPixelForValue(value){return void 0!==value&&0!==value||(value=this.min),null===value||isNaN(value)?NaN:this.getPixelForDecimal(value===this.min?0:(log10(value)-this._startValue)/this._valueRange)}getValueForPixel(pixel){const decimal=this.getDecimalForPixel(pixel);return Math.pow(10,this._startValue+decimal*this._valueRange)}}function getTickBackdropHeight(opts){const tickOpts=opts.ticks;if(tickOpts.display&&opts.display){const padding=toPadding(tickOpts.backdropPadding);return valueOrDefault(tickOpts.font&&tickOpts.font.size,defaults.font.size)+padding.height}return 0}function determineLimits(angle,pos,size,min,max){return angle===min||angle===max?{start:pos-size/2,end:pos+size/2}:anglemax?{start:pos-size,end:pos}:{start:pos,end:pos+size}}function fitWithPointLabels(scale){const orig={l:scale.left+scale._padding.left,r:scale.right-scale._padding.right,t:scale.top+scale._padding.top,b:scale.bottom-scale._padding.bottom},limits=Object.assign({},orig),labelSizes=[],padding=[],valueCount=scale._pointLabels.length,pointLabelOpts=scale.options.pointLabels,additionalAngle=pointLabelOpts.centerPointLabels?PI/valueCount:0;for(let i=0;iorig.r&&(x=(hLimits.end-orig.r)/sin,limits.r=Math.max(limits.r,orig.r+x)),vLimits.startorig.b&&(y=(vLimits.end-orig.b)/cos,limits.b=Math.max(limits.b,orig.b+y))}function getTextAlignForAngle(angle){return 0===angle||180===angle?"center":angle<180?"left":"right"}function leftForTextAlign(x,w,align){return"right"===align?x-=w:"center"===align&&(x-=w/2),x}function yForAngle(y,h,angle){return 90===angle||270===angle?y-=h/2:(angle>270||angle<90)&&(y-=h),y}function pathRadiusLine(scale,radius,circular,labelCount){const{ctx:ctx}=scale;if(circular)ctx.arc(scale.xCenter,scale.yCenter,radius,0,TAU);else{let pointPosition=scale.getPointPosition(0,radius);ctx.moveTo(pointPosition.x,pointPosition.y);for(let i=1;i{const label=callback(this.options.pointLabels.callback,[value,index],this);return label||0===label?label:""})).filter(((v,i)=>this.chart.getDataVisibility(i)))}fit(){const opts=this.options;opts.display&&opts.pointLabels.display?fitWithPointLabels(this):this.setCenterPoint(0,0,0,0)}setCenterPoint(leftMovement,rightMovement,topMovement,bottomMovement){this.xCenter+=Math.floor((leftMovement-rightMovement)/2),this.yCenter+=Math.floor((topMovement-bottomMovement)/2),this.drawingArea-=Math.min(this.drawingArea/2,Math.max(leftMovement,rightMovement,topMovement,bottomMovement))}getIndexAngle(index){return _normalizeAngle(index*(TAU/(this._pointLabels.length||1))+toRadians(this.options.startAngle||0))}getDistanceFromCenterForValue(value){if(isNullOrUndef(value))return NaN;const scalingFactor=this.drawingArea/(this.max-this.min);return this.options.reverse?(this.max-value)*scalingFactor:(value-this.min)*scalingFactor}getValueForDistanceFromCenter(distance){if(isNullOrUndef(distance))return NaN;const scaledDistance=distance/(this.drawingArea/(this.max-this.min));return this.options.reverse?this.max-scaledDistance:this.min+scaledDistance}getPointLabelContext(index){const pointLabels=this._pointLabels||[];if(index>=0&&index2&&void 0!==arguments[2]?arguments[2]:0;const angle=this.getIndexAngle(index)-HALF_PI+additionalAngle;return{x:Math.cos(angle)*distanceFromCenter+this.xCenter,y:Math.sin(angle)*distanceFromCenter+this.yCenter,angle:angle}}getPointPositionForValue(index,value){return this.getPointPosition(index,this.getDistanceFromCenterForValue(value))}getBasePosition(index){return this.getPointPositionForValue(index||0,this.getBaseValue())}getPointLabelPosition(index){const{left:left,top:top,right:right,bottom:bottom}=this._pointLabelItems[index];return{left:left,top:top,right:right,bottom:bottom}}drawBackground(){const{backgroundColor:backgroundColor,grid:{circular:circular}}=this.options;if(backgroundColor){const ctx=this.ctx;ctx.save(),ctx.beginPath(),pathRadiusLine(this,this.getDistanceFromCenterForValue(this._endValue),circular,this._pointLabels.length),ctx.closePath(),ctx.fillStyle=backgroundColor,ctx.fill(),ctx.restore()}}drawGrid(){const ctx=this.ctx,opts=this.options,{angleLines:angleLines,grid:grid,border:border}=opts,labelCount=this._pointLabels.length;let i,offset,position;if(opts.pointLabels.display&&function(scale,labelCount){const{ctx:ctx,options:{pointLabels:pointLabels}}=scale;for(let i=labelCount-1;i>=0;i--){const optsAtIndex=pointLabels.setContext(scale.getPointLabelContext(i)),plFont=toFont(optsAtIndex.font),{x:x,y:y,textAlign:textAlign,left:left,top:top,right:right,bottom:bottom}=scale._pointLabelItems[i],{backdropColor:backdropColor}=optsAtIndex;if(!isNullOrUndef(backdropColor)){const borderRadius=toTRBLCorners(optsAtIndex.borderRadius),padding=toPadding(optsAtIndex.backdropPadding);ctx.fillStyle=backdropColor;const backdropLeft=left-padding.left,backdropTop=top-padding.top,backdropWidth=right-left+padding.width,backdropHeight=bottom-top+padding.height;Object.values(borderRadius).some((v=>0!==v))?(ctx.beginPath(),addRoundedRectPath(ctx,{x:backdropLeft,y:backdropTop,w:backdropWidth,h:backdropHeight,radius:borderRadius}),ctx.fill()):ctx.fillRect(backdropLeft,backdropTop,backdropWidth,backdropHeight)}renderText(ctx,scale._pointLabels[i],x,y+plFont.lineHeight/2,plFont,{color:optsAtIndex.color,textAlign:textAlign,textBaseline:"middle"})}}(this,labelCount),grid.display&&this.ticks.forEach(((tick,index)=>{if(0!==index){offset=this.getDistanceFromCenterForValue(tick.value);const context=this.getContext(index),optsAtIndex=grid.setContext(context),optsAtIndexBorder=border.setContext(context);!function(scale,gridLineOpts,radius,labelCount,borderOpts){const ctx=scale.ctx,circular=gridLineOpts.circular,{color:color,lineWidth:lineWidth}=gridLineOpts;!circular&&!labelCount||!color||!lineWidth||radius<0||(ctx.save(),ctx.strokeStyle=color,ctx.lineWidth=lineWidth,ctx.setLineDash(borderOpts.dash),ctx.lineDashOffset=borderOpts.dashOffset,ctx.beginPath(),pathRadiusLine(scale,radius,circular,labelCount),ctx.closePath(),ctx.stroke(),ctx.restore())}(this,optsAtIndex,offset,labelCount,optsAtIndexBorder)}})),angleLines.display){for(ctx.save(),i=labelCount-1;i>=0;i--){const optsAtIndex=angleLines.setContext(this.getPointLabelContext(i)),{color:color,lineWidth:lineWidth}=optsAtIndex;lineWidth&&color&&(ctx.lineWidth=lineWidth,ctx.strokeStyle=color,ctx.setLineDash(optsAtIndex.borderDash),ctx.lineDashOffset=optsAtIndex.borderDashOffset,offset=this.getDistanceFromCenterForValue(opts.ticks.reverse?this.min:this.max),position=this.getPointPosition(i,offset),ctx.beginPath(),ctx.moveTo(this.xCenter,this.yCenter),ctx.lineTo(position.x,position.y),ctx.stroke())}ctx.restore()}}drawBorder(){}drawLabels(){const ctx=this.ctx,opts=this.options,tickOpts=opts.ticks;if(!tickOpts.display)return;const startAngle=this.getIndexAngle(0);let offset,width;ctx.save(),ctx.translate(this.xCenter,this.yCenter),ctx.rotate(startAngle),ctx.textAlign="center",ctx.textBaseline="middle",this.ticks.forEach(((tick,index)=>{if(0===index&&!opts.reverse)return;const optsAtIndex=tickOpts.setContext(this.getContext(index)),tickFont=toFont(optsAtIndex.font);if(offset=this.getDistanceFromCenterForValue(this.ticks[index].value),optsAtIndex.showLabelBackdrop){ctx.font=tickFont.string,width=ctx.measureText(tick.label).width,ctx.fillStyle=optsAtIndex.backdropColor;const padding=toPadding(optsAtIndex.backdropPadding);ctx.fillRect(-width/2-padding.left,-offset-tickFont.size/2-padding.top,width+padding.width,tickFont.size+padding.height)}renderText(ctx,tick.label,0,-offset,tickFont,{color:optsAtIndex.color})})),ctx.restore()}drawTitle(){}}_defineProperty(RadialLinearScale,"id","radialLinear"),_defineProperty(RadialLinearScale,"defaults",{display:!0,animate:!0,position:"chartArea",angleLines:{display:!0,lineWidth:1,borderDash:[],borderDashOffset:0},grid:{circular:!1},startAngle:0,ticks:{showLabelBackdrop:!0,callback:Ticks.formatters.numeric},pointLabels:{backdropColor:void 0,backdropPadding:2,display:!0,font:{size:10},callback:label=>label,padding:5,centerPointLabels:!1}}),_defineProperty(RadialLinearScale,"defaultRoutes",{"angleLines.color":"borderColor","pointLabels.color":"color","ticks.color":"color"}),_defineProperty(RadialLinearScale,"descriptors",{angleLines:{_fallback:"grid"}});const INTERVALS={millisecond:{common:!0,size:1,steps:1e3},second:{common:!0,size:1e3,steps:60},minute:{common:!0,size:6e4,steps:60},hour:{common:!0,size:36e5,steps:24},day:{common:!0,size:864e5,steps:30},week:{common:!1,size:6048e5,steps:4},month:{common:!0,size:2628e6,steps:12},quarter:{common:!1,size:7884e6,steps:4},year:{common:!0,size:3154e7}},UNITS=Object.keys(INTERVALS);function sorter(a,b){return a-b}function parse(scale,input){if(isNullOrUndef(input))return null;const adapter=scale._adapter,{parser:parser,round:round,isoWeekday:isoWeekday}=scale._parseOpts;let value=input;return"function"==typeof parser&&(value=parser(value)),isNumberFinite(value)||(value="string"==typeof parser?adapter.parse(value,parser):adapter.parse(value)),null===value?null:(round&&(value="week"!==round||!isNumber(isoWeekday)&&!0!==isoWeekday?adapter.startOf(value,round):adapter.startOf(value,"isoWeek",isoWeekday)),+value)}function determineUnitForAutoTicks(minUnit,min,max,capacity){const ilen=UNITS.length;for(let i=UNITS.indexOf(minUnit);i=time?timestamps[lo]:timestamps[hi]]=!0}}else ticks[time]=!0}function ticksFromTimestamps(scale,values,majorUnit){const ticks=[],map={},ilen=values.length;let i,value;for(i=0;i=0&&(ticks[index].major=!0);return ticks}(scale,ticks,map,majorUnit):ticks}class TimeScale extends Scale{constructor(props){super(props),this._cache={data:[],labels:[],all:[]},this._unit="day",this._majorUnit=void 0,this._offsets={},this._normalized=!1,this._parseOpts=void 0}init(scaleOpts){let opts=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};const time=scaleOpts.time||(scaleOpts.time={}),adapter=this._adapter=new _adapters._date(scaleOpts.adapters.date);adapter.init(opts),mergeIf(time.displayFormats,adapter.formats()),this._parseOpts={parser:time.parser,round:time.round,isoWeekday:time.isoWeekday},super.init(scaleOpts),this._normalized=opts.normalized}parse(raw,index){return void 0===raw?null:parse(this,raw)}beforeLayout(){super.beforeLayout(),this._cache={data:[],labels:[],all:[]}}determineDataLimits(){const options=this.options,adapter=this._adapter,unit=options.time.unit||"day";let{min:min,max:max,minDefined:minDefined,maxDefined:maxDefined}=this.getUserBounds();function _applyBounds(bounds){minDefined||isNaN(bounds.min)||(min=Math.min(min,bounds.min)),maxDefined||isNaN(bounds.max)||(max=Math.max(max,bounds.max))}minDefined&&maxDefined||(_applyBounds(this._getLabelBounds()),"ticks"===options.bounds&&"labels"===options.ticks.source||_applyBounds(this.getMinMax(!1))),min=isNumberFinite(min)&&!isNaN(min)?min:+adapter.startOf(Date.now(),unit),max=isNumberFinite(max)&&!isNaN(max)?max:+adapter.endOf(Date.now(),unit)+1,this.min=Math.min(min,max-1),this.max=Math.max(min+1,max)}_getLabelBounds(){const arr=this.getLabelTimestamps();let min=Number.POSITIVE_INFINITY,max=Number.NEGATIVE_INFINITY;return arr.length&&(min=arr[0],max=arr[arr.length-1]),{min:min,max:max}}buildTicks(){const options=this.options,timeOpts=options.time,tickOpts=options.ticks,timestamps="labels"===tickOpts.source?this.getLabelTimestamps():this._generate();"ticks"===options.bounds&×tamps.length&&(this.min=this._userMin||timestamps[0],this.max=this._userMax||timestamps[timestamps.length-1]);const min=this.min,ticks=_filterBetween(timestamps,min,this.max);return this._unit=timeOpts.unit||(tickOpts.autoSkip?determineUnitForAutoTicks(timeOpts.minUnit,this.min,this.max,this._getLabelCapacity(min)):function(scale,numTicks,minUnit,min,max){for(let i=UNITS.length-1;i>=UNITS.indexOf(minUnit);i--){const unit=UNITS[i];if(INTERVALS[unit].common&&scale._adapter.diff(max,min,unit)>=numTicks-1)return unit}return UNITS[minUnit?UNITS.indexOf(minUnit):0]}(this,ticks.length,timeOpts.minUnit,this.min,this.max)),this._majorUnit=tickOpts.major.enabled&&"year"!==this._unit?function(unit){for(let i=UNITS.indexOf(unit)+1,ilen=UNITS.length;i+tick.value)))}initOffsets(){let first,last,timestamps=arguments.length>0&&void 0!==arguments[0]?arguments[0]:[],start=0,end=0;this.options.offset&×tamps.length&&(first=this.getDecimalForValue(timestamps[0]),start=1===timestamps.length?1-first:(this.getDecimalForValue(timestamps[1])-first)/2,last=this.getDecimalForValue(timestamps[timestamps.length-1]),end=1===timestamps.length?last:(last-this.getDecimalForValue(timestamps[timestamps.length-2]))/2);const limit=timestamps.length<3?.5:.25;start=_limitValue(start,0,limit),end=_limitValue(end,0,limit),this._offsets={start:start,end:end,factor:1/(start+1+end)}}_generate(){const adapter=this._adapter,min=this.min,max=this.max,options=this.options,timeOpts=options.time,minor=timeOpts.unit||determineUnitForAutoTicks(timeOpts.minUnit,min,max,this._getLabelCapacity(min)),stepSize=valueOrDefault(options.ticks.stepSize,1),weekday="week"===minor&&timeOpts.isoWeekday,hasWeekday=isNumber(weekday)||!0===weekday,ticks={};let time,count,first=min;if(hasWeekday&&(first=+adapter.startOf(first,"isoWeek",weekday)),first=+adapter.startOf(first,hasWeekday?"day":minor),adapter.diff(max,min,minor)>1e5*stepSize)throw new Error(min+" and "+max+" are too far apart with stepSize of "+stepSize+" "+minor);const timestamps="data"===options.ticks.source&&this.getDataTimestamps();for(time=first,count=0;timea-b)).map((x=>+x))}getLabelForValue(value){const adapter=this._adapter,timeOpts=this.options.time;return timeOpts.tooltipFormat?adapter.format(value,timeOpts.tooltipFormat):adapter.format(value,timeOpts.displayFormats.datetime)}format(value,format){const formats=this.options.time.displayFormats,unit=this._unit,fmt=format||formats[unit];return this._adapter.format(value,fmt)}_tickFormatFunction(time,index,ticks,format){const options=this.options,formatter=options.ticks.callback;if(formatter)return callback(formatter,[time,index,ticks],this);const formats=options.time.displayFormats,unit=this._unit,majorUnit=this._majorUnit,minorFormat=unit&&formats[unit],majorFormat=majorUnit&&formats[majorUnit],tick=ticks[index],major=majorUnit&&majorFormat&&tick&&tick.major;return this._adapter.format(time,format||(major?majorFormat:minorFormat))}generateTickLabels(ticks){let i,ilen,tick;for(i=0,ilen=ticks.length;i0?capacity:1}getDataTimestamps(){let i,ilen,timestamps=this._cache.data||[];if(timestamps.length)return timestamps;const metas=this.getMatchingVisibleMetas();if(this._normalized&&metas.length)return this._cache.data=metas[0].controller.getAllParsedValues(this);for(i=0,ilen=metas.length;i=table[lo].pos&&val<=table[hi].pos&&({lo:lo,hi:hi}=_lookupByKey(table,"pos",val)),({pos:prevSource,time:prevTarget}=table[lo]),({pos:nextSource,time:nextTarget}=table[hi])):(val>=table[lo].time&&val<=table[hi].time&&({lo:lo,hi:hi}=_lookupByKey(table,"time",val)),({time:prevSource,pos:prevTarget}=table[lo]),({time:nextSource,pos:nextTarget}=table[hi]));const span=nextSource-prevSource;return span?prevTarget+(nextTarget-prevTarget)*(val-prevSource)/span:prevTarget}_defineProperty(TimeScale,"id","time"),_defineProperty(TimeScale,"defaults",{bounds:"data",adapters:{},time:{parser:!1,unit:!1,round:!1,isoWeekday:!1,minUnit:"millisecond",displayFormats:{}},ticks:{source:"auto",callback:!1,major:{enabled:!1}}});class TimeSeriesScale extends TimeScale{constructor(props){super(props),this._table=[],this._minPos=void 0,this._tableRange=void 0}initOffsets(){const timestamps=this._getTimestampsForTable(),table=this._table=this.buildLookupTable(timestamps);this._minPos=interpolate(table,this.min),this._tableRange=interpolate(table,this.max)-this._minPos,super.initOffsets(timestamps)}buildLookupTable(timestamps){const{min:min,max:max}=this,items=[],table=[];let i,ilen,prev,curr,next;for(i=0,ilen=timestamps.length;i=min&&curr<=max&&items.push(curr);if(items.length<2)return[{time:min,pos:0},{time:max,pos:1}];for(i=0,ilen=items.length;icolor.replace("rgb(","rgba(").replace(")",", 0.5)")));function getBorderColor(i){return BORDER_COLORS[i%BORDER_COLORS.length]}function getBackgroundColor(i){return BACKGROUND_COLORS[i%BACKGROUND_COLORS.length]}function getColorizer(chart){let i=0;return(dataset,datasetIndex)=>{const controller=chart.getDatasetMeta(datasetIndex).controller;controller instanceof DoughnutController?i=function(dataset,i){return dataset.backgroundColor=dataset.data.map((()=>getBorderColor(i++))),i}(dataset,i):controller instanceof PolarAreaController?i=function(dataset,i){return dataset.backgroundColor=dataset.data.map((()=>getBackgroundColor(i++))),i}(dataset,i):controller&&(i=function(dataset,i){return dataset.borderColor=getBorderColor(i),dataset.backgroundColor=getBackgroundColor(i),++i}(dataset,i))}}function containsColorsDefinitions(descriptors){let k;for(k in descriptors)if(descriptors[k].borderColor||descriptors[k].backgroundColor)return!0;return!1}var plugin_colors={id:"colors",defaults:{enabled:!0,forceOverride:!1},beforeLayout(chart,_args,options){if(!options.enabled)return;const{data:{datasets:datasets},options:chartOptions}=chart.config,{elements:elements}=chartOptions;if(!options.forceOverride&&(containsColorsDefinitions(datasets)||(descriptor=chartOptions)&&(descriptor.borderColor||descriptor.backgroundColor)||elements&&containsColorsDefinitions(elements)))return;var descriptor;const colorizer=getColorizer(chart);datasets.forEach(colorizer)}};function cleanDecimatedDataset(dataset){if(dataset._decimated){const data=dataset._data;delete dataset._decimated,delete dataset._data,Object.defineProperty(dataset,"data",{configurable:!0,enumerable:!0,writable:!0,value:data})}}function cleanDecimatedData(chart){chart.data.datasets.forEach((dataset=>{cleanDecimatedDataset(dataset)}))}var plugin_decimation={id:"decimation",defaults:{algorithm:"min-max",enabled:!1},beforeElementsUpdate:(chart,args,options)=>{if(!options.enabled)return void cleanDecimatedData(chart);const availableWidth=chart.width;chart.data.datasets.forEach(((dataset,datasetIndex)=>{const{_data:_data,indexAxis:indexAxis}=dataset,meta=chart.getDatasetMeta(datasetIndex),data=_data||dataset.data;if("y"===resolve([indexAxis,chart.options.indexAxis]))return;if(!meta.controller.supportsDecimation)return;const xAxis=chart.scales[meta.xAxisID];if("linear"!==xAxis.type&&"time"!==xAxis.type)return;if(chart.options.parsing)return;let decimated,{start:start,count:count}=function(meta,points){const pointCount=points.length;let count,start=0;const{iScale:iScale}=meta,{min:min,max:max,minDefined:minDefined,maxDefined:maxDefined}=iScale.getUserBounds();return minDefined&&(start=_limitValue(_lookupByKey(points,iScale.axis,min).lo,0,pointCount-1)),count=maxDefined?_limitValue(_lookupByKey(points,iScale.axis,max).hi+1,start,pointCount)-start:pointCount-start,{start:start,count:count}}(meta,data);if(count<=(options.threshold||4*availableWidth))cleanDecimatedDataset(dataset);else{switch(isNullOrUndef(_data)&&(dataset._data=data,delete dataset.data,Object.defineProperty(dataset,"data",{configurable:!0,enumerable:!0,get:function(){return this._decimated},set:function(d){this._data=d}})),options.algorithm){case"lttb":decimated=function(data,start,count,availableWidth,options){const samples=options.samples||availableWidth;if(samples>=count)return data.slice(start,start+count);const decimated=[],bucketWidth=(count-2)/(samples-2);let sampledIndex=0;const endIndex=start+count-1;let i,maxAreaPoint,maxArea,area,nextA,a=start;for(decimated[sampledIndex++]=data[a],i=0;imaxArea&&(maxArea=area,maxAreaPoint=data[j],nextA=j);decimated[sampledIndex++]=maxAreaPoint,a=nextA}return decimated[sampledIndex++]=data[endIndex],decimated}(data,start,count,availableWidth,options);break;case"min-max":decimated=function(data,start,count,availableWidth){let i,point,x,y,prevX,minIndex,maxIndex,startIndex,minY,maxY,avgX=0,countX=0;const decimated=[],endIndex=start+count-1,xMin=data[start].x,dx=data[endIndex].x-xMin;for(i=start;imaxY&&(maxY=y,maxIndex=i),avgX=(countX*avgX+point.x)/++countX;else{const lastIndex=i-1;if(!isNullOrUndef(minIndex)&&!isNullOrUndef(maxIndex)){const intermediateIndex1=Math.min(minIndex,maxIndex),intermediateIndex2=Math.max(minIndex,maxIndex);intermediateIndex1!==startIndex&&intermediateIndex1!==lastIndex&&decimated.push({...data[intermediateIndex1],x:avgX}),intermediateIndex2!==startIndex&&intermediateIndex2!==lastIndex&&decimated.push({...data[intermediateIndex2],x:avgX})}i>0&&lastIndex!==startIndex&&decimated.push(data[lastIndex]),decimated.push(point),prevX=truncX,countX=0,minY=maxY=y,minIndex=maxIndex=startIndex=i}}return decimated}(data,start,count,availableWidth);break;default:throw new Error("Unsupported decimation algorithm '".concat(options.algorithm,"'"))}dataset._decimated=decimated}}))},destroy(chart){cleanDecimatedData(chart)}};function _getBounds(property,first,last,loop){if(loop)return;let start=first[property],end=last[property];return"angle"===property&&(start=_normalizeAngle(start),end=_normalizeAngle(end)),{property:property,start:start,end:end}}function _findSegmentEnd(start,end,points){for(;end>start;end--){const point=points[end];if(!isNaN(point.x)&&!isNaN(point.y))break}return end}function _getEdge(a,b,prop,fn){return a&&b?fn(a[prop],b[prop]):a?a[prop]:b?b[prop]:0}function _createBoundaryLine(boundary,line){let points=[],_loop=!1;return isArray(boundary)?(_loop=!0,points=boundary):points=function(boundary,line){const{x:x=null,y:y=null}=boundary||{},linePoints=line.points,points=[];return line.segments.forEach((_ref8=>{let{start:start,end:end}=_ref8;end=_findSegmentEnd(start,end,linePoints);const first=linePoints[start],last=linePoints[end];null!==y?(points.push({x:first.x,y:y}),points.push({x:last.x,y:y})):null!==x&&(points.push({x:x,y:first.y}),points.push({x:x,y:last.y}))})),points}(boundary,line),points.length?new LineElement({points:points,options:{tension:0},_loop:_loop,_fullLoop:_loop}):null}function _shouldApplyFill(source){return source&&!1!==source.fill}function _resolveTarget(sources,index,propagate){let fill=sources[index].fill;const visited=[index];let target;if(!propagate)return fill;for(;!1!==fill&&-1===visited.indexOf(fill);){if(!isNumberFinite(fill))return fill;if(target=sources[fill],!target)return!1;if(target.visible)return fill;visited.push(fill),fill=target.fill}return!1}function _decodeFill(line,index,count){const fill=function(line){const options=line.options,fillOption=options.fill;let fill=valueOrDefault(fillOption&&fillOption.target,fillOption);return void 0===fill&&(fill=!!options.backgroundColor),!1!==fill&&null!==fill&&(!0===fill?"origin":fill)}(line);if(isObject(fill))return!isNaN(fill.value)&&fill;let target=parseFloat(fill);return isNumberFinite(target)&&Math.floor(target)===target?function(firstCh,index,target,count){return"-"!==firstCh&&"+"!==firstCh||(target=index+target),!(target===index||target<0||target>=count)&&target}(fill[0],index,target,count):["origin","start","end","stack","shape"].indexOf(fill)>=0&&fill}function addPointsBelow(points,sourcePoint,linesBelow){const postponed=[];for(let j=0;j=0;--i){const source=metasets[i].$filler;source&&(source.line.updateControlPoints(area,source.axis),draw&&source.fill&&_drawfill(chart.ctx,source,area))}},beforeDatasetsDraw(chart,_args,options){if("beforeDatasetsDraw"!==options.drawTime)return;const metasets=chart.getSortedVisibleDatasetMetas();for(let i=metasets.length-1;i>=0;--i){const source=metasets[i].$filler;_shouldApplyFill(source)&&_drawfill(chart.ctx,source,chart.chartArea)}},beforeDatasetDraw(chart,args,options){const source=args.meta.$filler;_shouldApplyFill(source)&&"beforeDatasetDraw"===options.drawTime&&_drawfill(chart.ctx,source,chart.chartArea)},defaults:{propagate:!0,drawTime:"beforeDatasetDraw"}};const getBoxSize=(labelOpts,fontSize)=>{let{boxHeight:boxHeight=fontSize,boxWidth:boxWidth=fontSize}=labelOpts;return labelOpts.usePointStyle&&(boxHeight=Math.min(boxHeight,fontSize),boxWidth=labelOpts.pointStyleWidth||Math.min(boxWidth,fontSize)),{boxWidth:boxWidth,boxHeight:boxHeight,itemHeight:Math.max(fontSize,boxHeight)}};class Legend extends Element{constructor(config){super(),this._added=!1,this.legendHitBoxes=[],this._hoveredItem=null,this.doughnutMode=!1,this.chart=config.chart,this.options=config.options,this.ctx=config.ctx,this.legendItems=void 0,this.columnSizes=void 0,this.lineWidths=void 0,this.maxHeight=void 0,this.maxWidth=void 0,this.top=void 0,this.bottom=void 0,this.left=void 0,this.right=void 0,this.height=void 0,this.width=void 0,this._margins=void 0,this.position=void 0,this.weight=void 0,this.fullSize=void 0}update(maxWidth,maxHeight,margins){this.maxWidth=maxWidth,this.maxHeight=maxHeight,this._margins=margins,this.setDimensions(),this.buildLabels(),this.fit()}setDimensions(){this.isHorizontal()?(this.width=this.maxWidth,this.left=this._margins.left,this.right=this.width):(this.height=this.maxHeight,this.top=this._margins.top,this.bottom=this.height)}buildLabels(){const labelOpts=this.options.labels||{};let legendItems=callback(labelOpts.generateLabels,[this.chart],this)||[];labelOpts.filter&&(legendItems=legendItems.filter((item=>labelOpts.filter(item,this.chart.data)))),labelOpts.sort&&(legendItems=legendItems.sort(((a,b)=>labelOpts.sort(a,b,this.chart.data)))),this.options.reverse&&legendItems.reverse(),this.legendItems=legendItems}fit(){const{options:options,ctx:ctx}=this;if(!options.display)return void(this.width=this.height=0);const labelOpts=options.labels,labelFont=toFont(labelOpts.font),fontSize=labelFont.size,titleHeight=this._computeTitleHeight(),{boxWidth:boxWidth,itemHeight:itemHeight}=getBoxSize(labelOpts,fontSize);let width,height;ctx.font=labelFont.string,this.isHorizontal()?(width=this.maxWidth,height=this._fitRows(titleHeight,fontSize,boxWidth,itemHeight)+10):(height=this.maxHeight,width=this._fitCols(titleHeight,labelFont,boxWidth,itemHeight)+10),this.width=Math.min(width,options.maxWidth||this.maxWidth),this.height=Math.min(height,options.maxHeight||this.maxHeight)}_fitRows(titleHeight,fontSize,boxWidth,itemHeight){const{ctx:ctx,maxWidth:maxWidth,options:{labels:{padding:padding}}}=this,hitboxes=this.legendHitBoxes=[],lineWidths=this.lineWidths=[0],lineHeight=itemHeight+padding;let totalHeight=titleHeight;ctx.textAlign="left",ctx.textBaseline="middle";let row=-1,top=-lineHeight;return this.legendItems.forEach(((legendItem,i)=>{const itemWidth=boxWidth+fontSize/2+ctx.measureText(legendItem.text).width;(0===i||lineWidths[lineWidths.length-1]+itemWidth+2*padding>maxWidth)&&(totalHeight+=lineHeight,lineWidths[lineWidths.length-(i>0?0:1)]=0,top+=lineHeight,row++),hitboxes[i]={left:0,top:top,row:row,width:itemWidth,height:itemHeight},lineWidths[lineWidths.length-1]+=itemWidth+padding})),totalHeight}_fitCols(titleHeight,labelFont,boxWidth,_itemHeight){const{ctx:ctx,maxHeight:maxHeight,options:{labels:{padding:padding}}}=this,hitboxes=this.legendHitBoxes=[],columnSizes=this.columnSizes=[],heightLimit=maxHeight-titleHeight;let totalWidth=padding,currentColWidth=0,currentColHeight=0,left=0,col=0;return this.legendItems.forEach(((legendItem,i)=>{const{itemWidth:itemWidth,itemHeight:itemHeight}=function(boxWidth,labelFont,ctx,legendItem,_itemHeight){const itemWidth=function(legendItem,boxWidth,labelFont,ctx){let legendItemText=legendItem.text;return legendItemText&&"string"!=typeof legendItemText&&(legendItemText=legendItemText.reduce(((a,b)=>a.length>b.length?a:b))),boxWidth+labelFont.size/2+ctx.measureText(legendItemText).width}(legendItem,boxWidth,labelFont,ctx),itemHeight=function(_itemHeight,legendItem,fontLineHeight){let itemHeight=_itemHeight;return"string"!=typeof legendItem.text&&(itemHeight=calculateLegendItemHeight(legendItem,fontLineHeight)),itemHeight}(_itemHeight,legendItem,labelFont.lineHeight);return{itemWidth:itemWidth,itemHeight:itemHeight}}(boxWidth,labelFont,ctx,legendItem,_itemHeight);i>0&¤tColHeight+itemHeight+2*padding>heightLimit&&(totalWidth+=currentColWidth+padding,columnSizes.push({width:currentColWidth,height:currentColHeight}),left+=currentColWidth+padding,col++,currentColWidth=currentColHeight=0),hitboxes[i]={left:left,top:currentColHeight,col:col,width:itemWidth,height:itemHeight},currentColWidth=Math.max(currentColWidth,itemWidth),currentColHeight+=itemHeight+padding})),totalWidth+=currentColWidth,columnSizes.push({width:currentColWidth,height:currentColHeight}),totalWidth}adjustHitBoxes(){if(!this.options.display)return;const titleHeight=this._computeTitleHeight(),{legendHitBoxes:hitboxes,options:{align:align,labels:{padding:padding},rtl:rtl}}=this,rtlHelper=getRtlAdapter(rtl,this.left,this.width);if(this.isHorizontal()){let row=0,left=_alignStartEnd(align,this.left+padding,this.right-this.lineWidths[row]);for(const hitbox of hitboxes)row!==hitbox.row&&(row=hitbox.row,left=_alignStartEnd(align,this.left+padding,this.right-this.lineWidths[row])),hitbox.top+=this.top+titleHeight+padding,hitbox.left=rtlHelper.leftForLtr(rtlHelper.x(left),hitbox.width),left+=hitbox.width+padding}else{let col=0,top=_alignStartEnd(align,this.top+titleHeight+padding,this.bottom-this.columnSizes[col].height);for(const hitbox1 of hitboxes)hitbox1.col!==col&&(col=hitbox1.col,top=_alignStartEnd(align,this.top+titleHeight+padding,this.bottom-this.columnSizes[col].height)),hitbox1.top=top,hitbox1.left+=this.left+padding,hitbox1.left=rtlHelper.leftForLtr(rtlHelper.x(hitbox1.left),hitbox1.width),top+=hitbox1.height+padding}}isHorizontal(){return"top"===this.options.position||"bottom"===this.options.position}draw(){if(this.options.display){const ctx=this.ctx;clipArea(ctx,this),this._draw(),unclipArea(ctx)}}_draw(){const{options:opts,columnSizes:columnSizes,lineWidths:lineWidths,ctx:ctx}=this,{align:align,labels:labelOpts}=opts,defaultColor=defaults.color,rtlHelper=getRtlAdapter(opts.rtl,this.left,this.width),labelFont=toFont(labelOpts.font),{padding:padding}=labelOpts,fontSize=labelFont.size,halfFontSize=fontSize/2;let cursor;this.drawTitle(),ctx.textAlign=rtlHelper.textAlign("left"),ctx.textBaseline="middle",ctx.lineWidth=.5,ctx.font=labelFont.string;const{boxWidth:boxWidth,boxHeight:boxHeight,itemHeight:itemHeight}=getBoxSize(labelOpts,fontSize),isHorizontal=this.isHorizontal(),titleHeight=this._computeTitleHeight();cursor=isHorizontal?{x:_alignStartEnd(align,this.left+padding,this.right-lineWidths[0]),y:this.top+padding+titleHeight,line:0}:{x:this.left+padding,y:_alignStartEnd(align,this.top+titleHeight+padding,this.bottom-columnSizes[0].height),line:0},overrideTextDirection(this.ctx,opts.textDirection);const lineHeight=itemHeight+padding;this.legendItems.forEach(((legendItem,i)=>{ctx.strokeStyle=legendItem.fontColor,ctx.fillStyle=legendItem.fontColor;const textWidth=ctx.measureText(legendItem.text).width,textAlign=rtlHelper.textAlign(legendItem.textAlign||(legendItem.textAlign=labelOpts.textAlign)),width=boxWidth+halfFontSize+textWidth;let x=cursor.x,y=cursor.y;if(rtlHelper.setWidth(this.width),isHorizontal?i>0&&x+width+padding>this.right&&(y=cursor.y+=lineHeight,cursor.line++,x=cursor.x=_alignStartEnd(align,this.left+padding,this.right-lineWidths[cursor.line])):i>0&&y+lineHeight>this.bottom&&(x=cursor.x=x+columnSizes[cursor.line].width+padding,cursor.line++,y=cursor.y=_alignStartEnd(align,this.top+titleHeight+padding,this.bottom-columnSizes[cursor.line].height)),function(x,y,legendItem){if(isNaN(boxWidth)||boxWidth<=0||isNaN(boxHeight)||boxHeight<0)return;ctx.save();const lineWidth=valueOrDefault(legendItem.lineWidth,1);if(ctx.fillStyle=valueOrDefault(legendItem.fillStyle,defaultColor),ctx.lineCap=valueOrDefault(legendItem.lineCap,"butt"),ctx.lineDashOffset=valueOrDefault(legendItem.lineDashOffset,0),ctx.lineJoin=valueOrDefault(legendItem.lineJoin,"miter"),ctx.lineWidth=lineWidth,ctx.strokeStyle=valueOrDefault(legendItem.strokeStyle,defaultColor),ctx.setLineDash(valueOrDefault(legendItem.lineDash,[])),labelOpts.usePointStyle){const drawOptions={radius:boxHeight*Math.SQRT2/2,pointStyle:legendItem.pointStyle,rotation:legendItem.rotation,borderWidth:lineWidth},centerX=rtlHelper.xPlus(x,boxWidth/2);drawPointLegend(ctx,drawOptions,centerX,y+halfFontSize,labelOpts.pointStyleWidth&&boxWidth)}else{const yBoxTop=y+Math.max((fontSize-boxHeight)/2,0),xBoxLeft=rtlHelper.leftForLtr(x,boxWidth),borderRadius=toTRBLCorners(legendItem.borderRadius);ctx.beginPath(),Object.values(borderRadius).some((v=>0!==v))?addRoundedRectPath(ctx,{x:xBoxLeft,y:yBoxTop,w:boxWidth,h:boxHeight,radius:borderRadius}):ctx.rect(xBoxLeft,yBoxTop,boxWidth,boxHeight),ctx.fill(),0!==lineWidth&&ctx.stroke()}ctx.restore()}(rtlHelper.x(x),y,legendItem),x=_textX(textAlign,x+boxWidth+halfFontSize,isHorizontal?x+width:this.right,opts.rtl),function(x,y,legendItem){renderText(ctx,legendItem.text,x,y+itemHeight/2,labelFont,{strikethrough:legendItem.hidden,textAlign:rtlHelper.textAlign(legendItem.textAlign)})}(rtlHelper.x(x),y,legendItem),isHorizontal)cursor.x+=width+padding;else if("string"!=typeof legendItem.text){const fontLineHeight=labelFont.lineHeight;cursor.y+=calculateLegendItemHeight(legendItem,fontLineHeight)}else cursor.y+=lineHeight})),restoreTextDirection(this.ctx,opts.textDirection)}drawTitle(){const opts=this.options,titleOpts=opts.title,titleFont=toFont(titleOpts.font),titlePadding=toPadding(titleOpts.padding);if(!titleOpts.display)return;const rtlHelper=getRtlAdapter(opts.rtl,this.left,this.width),ctx=this.ctx,position=titleOpts.position,halfFontSize=titleFont.size/2,topPaddingPlusHalfFontSize=titlePadding.top+halfFontSize;let y,left=this.left,maxWidth=this.width;if(this.isHorizontal())maxWidth=Math.max(...this.lineWidths),y=this.top+topPaddingPlusHalfFontSize,left=_alignStartEnd(opts.align,left,this.right-maxWidth);else{const maxHeight=this.columnSizes.reduce(((acc,size)=>Math.max(acc,size.height)),0);y=topPaddingPlusHalfFontSize+_alignStartEnd(opts.align,this.top,this.bottom-maxHeight-opts.labels.padding-this._computeTitleHeight())}const x=_alignStartEnd(position,left,left+maxWidth);ctx.textAlign=rtlHelper.textAlign(_toLeftRightCenter(position)),ctx.textBaseline="middle",ctx.strokeStyle=titleOpts.color,ctx.fillStyle=titleOpts.color,ctx.font=titleFont.string,renderText(ctx,titleOpts.text,x,y,titleFont)}_computeTitleHeight(){const titleOpts=this.options.title,titleFont=toFont(titleOpts.font),titlePadding=toPadding(titleOpts.padding);return titleOpts.display?titleFont.lineHeight+titlePadding.height:0}_getLegendItemAt(x,y){let i,hitBox,lh;if(_isBetween(x,this.left,this.right)&&_isBetween(y,this.top,this.bottom))for(lh=this.legendHitBoxes,i=0;ictx.chart.options.color,boxWidth:40,padding:10,generateLabels(chart){const datasets=chart.data.datasets,{labels:{usePointStyle:usePointStyle,pointStyle:pointStyle,textAlign:textAlign,color:color,useBorderRadius:useBorderRadius,borderRadius:borderRadius}}=chart.legend.options;return chart._getSortedDatasetMetas().map((meta=>{const style=meta.controller.getStyle(usePointStyle?0:void 0),borderWidth=toPadding(style.borderWidth);return{text:datasets[meta.index].label,fillStyle:style.backgroundColor,fontColor:color,hidden:!meta.visible,lineCap:style.borderCapStyle,lineDash:style.borderDash,lineDashOffset:style.borderDashOffset,lineJoin:style.borderJoinStyle,lineWidth:(borderWidth.width+borderWidth.height)/4,strokeStyle:style.borderColor,pointStyle:pointStyle||style.pointStyle,rotation:style.rotation,textAlign:textAlign||style.textAlign,borderRadius:useBorderRadius&&(borderRadius||style.borderRadius),datasetIndex:meta.index}}),this)}},title:{color:ctx=>ctx.chart.options.color,display:!1,position:"center",text:""}},descriptors:{_scriptable:name=>!name.startsWith("on"),labels:{_scriptable:name=>!["generateLabels","filter","sort"].includes(name)}}};class Title extends Element{constructor(config){super(),this.chart=config.chart,this.options=config.options,this.ctx=config.ctx,this._padding=void 0,this.top=void 0,this.bottom=void 0,this.left=void 0,this.right=void 0,this.width=void 0,this.height=void 0,this.position=void 0,this.weight=void 0,this.fullSize=void 0}update(maxWidth,maxHeight){const opts=this.options;if(this.left=0,this.top=0,!opts.display)return void(this.width=this.height=this.right=this.bottom=0);this.width=this.right=maxWidth,this.height=this.bottom=maxHeight;const lineCount=isArray(opts.text)?opts.text.length:1;this._padding=toPadding(opts.padding);const textSize=lineCount*toFont(opts.font).lineHeight+this._padding.height;this.isHorizontal()?this.height=textSize:this.width=textSize}isHorizontal(){const pos=this.options.position;return"top"===pos||"bottom"===pos}_drawArgs(offset){const{top:top,left:left,bottom:bottom,right:right,options:options}=this,align=options.align;let maxWidth,titleX,titleY,rotation=0;return this.isHorizontal()?(titleX=_alignStartEnd(align,left,right),titleY=top+offset,maxWidth=right-left):("left"===options.position?(titleX=left+offset,titleY=_alignStartEnd(align,bottom,top),rotation=-.5*PI):(titleX=right-offset,titleY=_alignStartEnd(align,top,bottom),rotation=.5*PI),maxWidth=bottom-top),{titleX:titleX,titleY:titleY,maxWidth:maxWidth,rotation:rotation}}draw(){const ctx=this.ctx,opts=this.options;if(!opts.display)return;const fontOpts=toFont(opts.font),offset=fontOpts.lineHeight/2+this._padding.top,{titleX:titleX,titleY:titleY,maxWidth:maxWidth,rotation:rotation}=this._drawArgs(offset);renderText(ctx,opts.text,0,0,fontOpts,{color:opts.color,maxWidth:maxWidth,rotation:rotation,textAlign:_toLeftRightCenter(opts.align),textBaseline:"middle",translation:[titleX,titleY]})}}var plugin_title={id:"title",_element:Title,start(chart,_args,options){!function(chart,titleOpts){const title=new Title({ctx:chart.ctx,options:titleOpts,chart:chart});layouts.configure(chart,title,titleOpts),layouts.addBox(chart,title),chart.titleBlock=title}(chart,options)},stop(chart){const titleBlock=chart.titleBlock;layouts.removeBox(chart,titleBlock),delete chart.titleBlock},beforeUpdate(chart,_args,options){const title=chart.titleBlock;layouts.configure(chart,title,options),title.options=options},defaults:{align:"center",display:!1,font:{weight:"bold"},fullSize:!0,padding:10,position:"top",text:"",weight:2e3},defaultRoutes:{color:"color"},descriptors:{_scriptable:!0,_indexable:!1}};const map=new WeakMap;var plugin_subtitle={id:"subtitle",start(chart,_args,options){const title=new Title({ctx:chart.ctx,options:options,chart:chart});layouts.configure(chart,title,options),layouts.addBox(chart,title),map.set(chart,title)},stop(chart){layouts.removeBox(chart,map.get(chart)),map.delete(chart)},beforeUpdate(chart,_args,options){const title=map.get(chart);layouts.configure(chart,title,options),title.options=options},defaults:{align:"center",display:!1,font:{weight:"normal"},fullSize:!0,padding:0,position:"top",text:"",weight:1500},defaultRoutes:{color:"color"},descriptors:{_scriptable:!0,_indexable:!1}};const positioners={average(items){if(!items.length)return!1;let i,len,x=0,y=0,count=0;for(i=0,len=items.length;i-1?str.split("\n"):str}function createTooltipItem(chart,item){const{element:element,datasetIndex:datasetIndex,index:index}=item,controller=chart.getDatasetMeta(datasetIndex).controller,{label:label,value:value}=controller.getLabelAndValue(index);return{chart:chart,label:label,parsed:controller.getParsed(index),raw:chart.data.datasets[datasetIndex].data[index],formattedValue:value,dataset:controller.getDataset(),dataIndex:index,datasetIndex:datasetIndex,element:element}}function getTooltipSize(tooltip,options){const ctx=tooltip.chart.ctx,{body:body,footer:footer,title:title}=tooltip,{boxWidth:boxWidth,boxHeight:boxHeight}=options,bodyFont=toFont(options.bodyFont),titleFont=toFont(options.titleFont),footerFont=toFont(options.footerFont),titleLineCount=title.length,footerLineCount=footer.length,bodyLineItemCount=body.length,padding=toPadding(options.padding);let height=padding.height,width=0,combinedBodyLength=body.reduce(((count,bodyItem)=>count+bodyItem.before.length+bodyItem.lines.length+bodyItem.after.length),0);combinedBodyLength+=tooltip.beforeBody.length+tooltip.afterBody.length,titleLineCount&&(height+=titleLineCount*titleFont.lineHeight+(titleLineCount-1)*options.titleSpacing+options.titleMarginBottom),combinedBodyLength&&(height+=bodyLineItemCount*(options.displayColors?Math.max(boxHeight,bodyFont.lineHeight):bodyFont.lineHeight)+(combinedBodyLength-bodyLineItemCount)*bodyFont.lineHeight+(combinedBodyLength-1)*options.bodySpacing),footerLineCount&&(height+=options.footerMarginTop+footerLineCount*footerFont.lineHeight+(footerLineCount-1)*options.footerSpacing);let widthPadding=0;const maxLineWidth=function(line){width=Math.max(width,ctx.measureText(line).width+widthPadding)};return ctx.save(),ctx.font=titleFont.string,each(tooltip.title,maxLineWidth),ctx.font=bodyFont.string,each(tooltip.beforeBody.concat(tooltip.afterBody),maxLineWidth),widthPadding=options.displayColors?boxWidth+2+options.boxPadding:0,each(body,(bodyItem=>{each(bodyItem.before,maxLineWidth),each(bodyItem.lines,maxLineWidth),each(bodyItem.after,maxLineWidth)})),widthPadding=0,ctx.font=footerFont.string,each(tooltip.footer,maxLineWidth),ctx.restore(),width+=padding.width,{width:width,height:height}}function determineXAlign(chart,options,size,yAlign){const{x:x,width:width}=size,{width:chartWidth,chartArea:{left:left,right:right}}=chart;let xAlign="center";return"center"===yAlign?xAlign=x<=(left+right)/2?"left":"right":x<=width/2?xAlign="left":x>=chartWidth-width/2&&(xAlign="right"),function(xAlign,chart,options,size){const{x:x,width:width}=size,caret=options.caretSize+options.caretPadding;return"left"===xAlign&&x+width+caret>chart.width||"right"===xAlign&&x-width-caret<0||void 0}(xAlign,chart,options,size)&&(xAlign="center"),xAlign}function determineAlignment(chart,options,size){const yAlign=size.yAlign||options.yAlign||function(chart,size){const{y:y,height:height}=size;return ychart.height-height/2?"bottom":"center"}(chart,size);return{xAlign:size.xAlign||options.xAlign||determineXAlign(chart,options,size,yAlign),yAlign:yAlign}}function getBackgroundPoint(options,size,alignment,chart){const{caretSize:caretSize,caretPadding:caretPadding,cornerRadius:cornerRadius}=options,{xAlign:xAlign,yAlign:yAlign}=alignment,paddingAndSize=caretSize+caretPadding,{topLeft:topLeft,topRight:topRight,bottomLeft:bottomLeft,bottomRight:bottomRight}=toTRBLCorners(cornerRadius);let x=function(size,xAlign){let{x:x,width:width}=size;return"right"===xAlign?x-=width:"center"===xAlign&&(x-=width/2),x}(size,xAlign);const y=function(size,yAlign,paddingAndSize){let{y:y,height:height}=size;return"top"===yAlign?y+=paddingAndSize:y-="bottom"===yAlign?height+paddingAndSize:height/2,y}(size,yAlign,paddingAndSize);return"center"===yAlign?"left"===xAlign?x+=paddingAndSize:"right"===xAlign&&(x-=paddingAndSize):"left"===xAlign?x-=Math.max(topLeft,bottomLeft)+caretSize:"right"===xAlign&&(x+=Math.max(topRight,bottomRight)+caretSize),{x:_limitValue(x,0,chart.width-size.width),y:_limitValue(y,0,chart.height-size.height)}}function getAlignedX(tooltip,align,options){const padding=toPadding(options.padding);return"center"===align?tooltip.x+tooltip.width/2:"right"===align?tooltip.x+tooltip.width-padding.right:tooltip.x+padding.left}function getBeforeAfterBodyLines(callback){return pushOrConcat([],splitNewlines(callback))}function overrideCallbacks(callbacks,context){const override=context&&context.dataset&&context.dataset.tooltip&&context.dataset.tooltip.callbacks;return override?callbacks.override(override):callbacks}const defaultCallbacks={beforeTitle:noop,title(tooltipItems){if(tooltipItems.length>0){const item=tooltipItems[0],labels=item.chart.data.labels,labelCount=labels?labels.length:0;if(this&&this.options&&"dataset"===this.options.mode)return item.dataset.label||"";if(item.label)return item.label;if(labelCount>0&&item.dataIndex{const bodyItem={before:[],lines:[],after:[]},scoped=overrideCallbacks(callbacks,context);pushOrConcat(bodyItem.before,splitNewlines(invokeCallbackWithFallback(scoped,"beforeLabel",this,context))),pushOrConcat(bodyItem.lines,invokeCallbackWithFallback(scoped,"label",this,context)),pushOrConcat(bodyItem.after,splitNewlines(invokeCallbackWithFallback(scoped,"afterLabel",this,context))),bodyItems.push(bodyItem)})),bodyItems}getAfterBody(tooltipItems,options){return getBeforeAfterBodyLines(invokeCallbackWithFallback(options.callbacks,"afterBody",this,tooltipItems))}getFooter(tooltipItems,options){const{callbacks:callbacks}=options,beforeFooter=invokeCallbackWithFallback(callbacks,"beforeFooter",this,tooltipItems),footer=invokeCallbackWithFallback(callbacks,"footer",this,tooltipItems),afterFooter=invokeCallbackWithFallback(callbacks,"afterFooter",this,tooltipItems);let lines=[];return lines=pushOrConcat(lines,splitNewlines(beforeFooter)),lines=pushOrConcat(lines,splitNewlines(footer)),lines=pushOrConcat(lines,splitNewlines(afterFooter)),lines}_createItems(options){const active=this._active,data=this.chart.data,labelColors=[],labelPointStyles=[],labelTextColors=[];let i,len,tooltipItems=[];for(i=0,len=active.length;ioptions.filter(element,index,array,data)))),options.itemSort&&(tooltipItems=tooltipItems.sort(((a,b)=>options.itemSort(a,b,data)))),each(tooltipItems,(context=>{const scoped=overrideCallbacks(options.callbacks,context);labelColors.push(invokeCallbackWithFallback(scoped,"labelColor",this,context)),labelPointStyles.push(invokeCallbackWithFallback(scoped,"labelPointStyle",this,context)),labelTextColors.push(invokeCallbackWithFallback(scoped,"labelTextColor",this,context))})),this.labelColors=labelColors,this.labelPointStyles=labelPointStyles,this.labelTextColors=labelTextColors,this.dataPoints=tooltipItems,tooltipItems}update(changed,replay){const options=this.options.setContext(this.getContext()),active=this._active;let properties,tooltipItems=[];if(active.length){const position=positioners[options.position].call(this,active,this._eventPosition);tooltipItems=this._createItems(options),this.title=this.getTitle(tooltipItems,options),this.beforeBody=this.getBeforeBody(tooltipItems,options),this.body=this.getBody(tooltipItems,options),this.afterBody=this.getAfterBody(tooltipItems,options),this.footer=this.getFooter(tooltipItems,options);const size=this._size=getTooltipSize(this,options),positionAndSize=Object.assign({},position,size),alignment=determineAlignment(this.chart,options,positionAndSize),backgroundPoint=getBackgroundPoint(options,positionAndSize,alignment,this.chart);this.xAlign=alignment.xAlign,this.yAlign=alignment.yAlign,properties={opacity:1,x:backgroundPoint.x,y:backgroundPoint.y,width:size.width,height:size.height,caretX:position.x,caretY:position.y}}else 0!==this.opacity&&(properties={opacity:0});this._tooltipItems=tooltipItems,this.$context=void 0,properties&&this._resolveAnimations().update(this,properties),changed&&options.external&&options.external.call(this,{chart:this.chart,tooltip:this,replay:replay})}drawCaret(tooltipPoint,ctx,size,options){const caretPosition=this.getCaretPosition(tooltipPoint,size,options);ctx.lineTo(caretPosition.x1,caretPosition.y1),ctx.lineTo(caretPosition.x2,caretPosition.y2),ctx.lineTo(caretPosition.x3,caretPosition.y3)}getCaretPosition(tooltipPoint,size,options){const{xAlign:xAlign,yAlign:yAlign}=this,{caretSize:caretSize,cornerRadius:cornerRadius}=options,{topLeft:topLeft,topRight:topRight,bottomLeft:bottomLeft,bottomRight:bottomRight}=toTRBLCorners(cornerRadius),{x:ptX,y:ptY}=tooltipPoint,{width:width,height:height}=size;let x1,x2,x3,y1,y2,y3;return"center"===yAlign?(y2=ptY+height/2,"left"===xAlign?(x1=ptX,x2=x1-caretSize,y1=y2+caretSize,y3=y2-caretSize):(x1=ptX+width,x2=x1+caretSize,y1=y2-caretSize,y3=y2+caretSize),x3=x1):(x2="left"===xAlign?ptX+Math.max(topLeft,bottomLeft)+caretSize:"right"===xAlign?ptX+width-Math.max(topRight,bottomRight)-caretSize:this.caretX,"top"===yAlign?(y1=ptY,y2=y1-caretSize,x1=x2-caretSize,x3=x2+caretSize):(y1=ptY+height,y2=y1+caretSize,x1=x2+caretSize,x3=x2-caretSize),y3=y1),{x1:x1,x2:x2,x3:x3,y1:y1,y2:y2,y3:y3}}drawTitle(pt,ctx,options){const title=this.title,length=title.length;let titleFont,titleSpacing,i;if(length){const rtlHelper=getRtlAdapter(options.rtl,this.x,this.width);for(pt.x=getAlignedX(this,options.titleAlign,options),ctx.textAlign=rtlHelper.textAlign(options.titleAlign),ctx.textBaseline="middle",titleFont=toFont(options.titleFont),titleSpacing=options.titleSpacing,ctx.fillStyle=options.titleColor,ctx.font=titleFont.string,i=0;i0!==v))?(ctx.beginPath(),ctx.fillStyle=options.multiKeyBackground,addRoundedRectPath(ctx,{x:outerX,y:colorY,w:boxWidth,h:boxHeight,radius:borderRadius}),ctx.fill(),ctx.stroke(),ctx.fillStyle=labelColors.backgroundColor,ctx.beginPath(),addRoundedRectPath(ctx,{x:innerX,y:colorY+1,w:boxWidth-2,h:boxHeight-2,radius:borderRadius}),ctx.fill()):(ctx.fillStyle=options.multiKeyBackground,ctx.fillRect(outerX,colorY,boxWidth,boxHeight),ctx.strokeRect(outerX,colorY,boxWidth,boxHeight),ctx.fillStyle=labelColors.backgroundColor,ctx.fillRect(innerX,colorY+1,boxWidth-2,boxHeight-2))}ctx.fillStyle=this.labelTextColors[i]}drawBody(pt,ctx,options){const{body:body}=this,{bodySpacing:bodySpacing,bodyAlign:bodyAlign,displayColors:displayColors,boxHeight:boxHeight,boxWidth:boxWidth,boxPadding:boxPadding}=options,bodyFont=toFont(options.bodyFont);let bodyLineHeight=bodyFont.lineHeight,xLinePadding=0;const rtlHelper=getRtlAdapter(options.rtl,this.x,this.width),fillLineOfText=function(line){ctx.fillText(line,rtlHelper.x(pt.x+xLinePadding),pt.y+bodyLineHeight/2),pt.y+=bodyLineHeight+bodySpacing},bodyAlignForCalculation=rtlHelper.textAlign(bodyAlign);let bodyItem,textColor,lines,i,j,ilen,jlen;for(ctx.textAlign=bodyAlign,ctx.textBaseline="middle",ctx.font=bodyFont.string,pt.x=getAlignedX(this,bodyAlignForCalculation,options),ctx.fillStyle=options.bodyColor,each(this.beforeBody,fillLineOfText),xLinePadding=displayColors&&"right"!==bodyAlignForCalculation?"center"===bodyAlign?boxWidth/2+boxPadding:boxWidth+2+boxPadding:0,i=0,ilen=body.length;i0&&ctx.stroke()}_updateAnimationTarget(options){const chart=this.chart,anims=this.$animations,animX=anims&&anims.x,animY=anims&&anims.y;if(animX||animY){const position=positioners[options.position].call(this,this._active,this._eventPosition);if(!position)return;const size=this._size=getTooltipSize(this,options),positionAndSize=Object.assign({},position,this._size),alignment=determineAlignment(chart,options,positionAndSize),point=getBackgroundPoint(options,positionAndSize,alignment,chart);animX._to===point.x&&animY._to===point.y||(this.xAlign=alignment.xAlign,this.yAlign=alignment.yAlign,this.width=size.width,this.height=size.height,this.caretX=position.x,this.caretY=position.y,this._resolveAnimations().update(this,point))}}_willRender(){return!!this.opacity}draw(ctx){const options=this.options.setContext(this.getContext());let opacity=this.opacity;if(!opacity)return;this._updateAnimationTarget(options);const tooltipSize={width:this.width,height:this.height},pt={x:this.x,y:this.y};opacity=Math.abs(opacity)<.001?0:opacity;const padding=toPadding(options.padding),hasTooltipContent=this.title.length||this.beforeBody.length||this.body.length||this.afterBody.length||this.footer.length;options.enabled&&hasTooltipContent&&(ctx.save(),ctx.globalAlpha=opacity,this.drawBackground(pt,ctx,tooltipSize,options),overrideTextDirection(ctx,options.textDirection),pt.y+=padding.top,this.drawTitle(pt,ctx,options),this.drawBody(pt,ctx,options),this.drawFooter(pt,ctx,options),restoreTextDirection(ctx,options.textDirection),ctx.restore())}getActiveElements(){return this._active||[]}setActiveElements(activeElements,eventPosition){const lastActive=this._active,active=activeElements.map((_ref9=>{let{datasetIndex:datasetIndex,index:index}=_ref9;const meta=this.chart.getDatasetMeta(datasetIndex);if(!meta)throw new Error("Cannot find a dataset at index "+datasetIndex);return{datasetIndex:datasetIndex,element:meta.data[index],index:index}})),changed=!_elementsEqual(lastActive,active),positionChanged=this._positionChanged(active,eventPosition);(changed||positionChanged)&&(this._active=active,this._eventPosition=eventPosition,this._ignoreReplayEvents=!0,this.update(!0))}handleEvent(e,replay){let inChartArea=!(arguments.length>2&&void 0!==arguments[2])||arguments[2];if(replay&&this._ignoreReplayEvents)return!1;this._ignoreReplayEvents=!1;const options=this.options,lastActive=this._active||[],active=this._getActiveElements(e,lastActive,replay,inChartArea),positionChanged=this._positionChanged(active,e),changed=replay||!_elementsEqual(active,lastActive)||positionChanged;return changed&&(this._active=active,(options.enabled||options.external)&&(this._eventPosition={x:e.x,y:e.y},this.update(!0,replay))),changed}_getActiveElements(e,lastActive,replay,inChartArea){const options=this.options;if("mouseout"===e.type)return[];if(!inChartArea)return lastActive;const active=this.chart.getElementsAtEventForMode(e,options.mode,options,replay);return options.reverse&&active.reverse(),active}_positionChanged(active,e){const{caretX:caretX,caretY:caretY,options:options}=this,position=positioners[options.position].call(this,active,e);return!1!==position&&(caretX!==position.x||caretY!==position.y)}}_defineProperty(Tooltip,"positioners",positioners);var plugin_tooltip={id:"tooltip",_element:Tooltip,positioners:positioners,afterInit(chart,_args,options){options&&(chart.tooltip=new Tooltip({chart:chart,options:options}))},beforeUpdate(chart,_args,options){chart.tooltip&&chart.tooltip.initialize(options)},reset(chart,_args,options){chart.tooltip&&chart.tooltip.initialize(options)},afterDraw(chart){const tooltip=chart.tooltip;if(tooltip&&tooltip._willRender()){const args={tooltip:tooltip};if(!1===chart.notifyPlugins("beforeTooltipDraw",{...args,cancelable:!0}))return;tooltip.draw(chart.ctx),chart.notifyPlugins("afterTooltipDraw",args)}},afterEvent(chart,args){if(chart.tooltip){const useFinalPosition=args.replay;chart.tooltip.handleEvent(args.event,useFinalPosition,args.inChartArea)&&(args.changed=!0)}},defaults:{enabled:!0,external:null,position:"average",backgroundColor:"rgba(0,0,0,0.8)",titleColor:"#fff",titleFont:{weight:"bold"},titleSpacing:2,titleMarginBottom:6,titleAlign:"left",bodyColor:"#fff",bodySpacing:2,bodyFont:{},bodyAlign:"left",footerColor:"#fff",footerSpacing:2,footerMarginTop:6,footerFont:{weight:"bold"},footerAlign:"left",padding:6,caretPadding:2,caretSize:5,cornerRadius:6,boxHeight:(ctx,opts)=>opts.bodyFont.size,boxWidth:(ctx,opts)=>opts.bodyFont.size,multiKeyBackground:"#fff",displayColors:!0,boxPadding:0,borderColor:"rgba(0,0,0,0)",borderWidth:0,animation:{duration:400,easing:"easeOutQuart"},animations:{numbers:{type:"number",properties:["x","y","width","height","caretX","caretY"]},opacity:{easing:"linear",duration:200}},callbacks:defaultCallbacks},defaultRoutes:{bodyFont:"font",footerFont:"font",titleFont:"font"},descriptors:{_scriptable:name=>"filter"!==name&&"itemSort"!==name&&"external"!==name,_indexable:!1,callbacks:{_scriptable:!1,_indexable:!1},animation:{_fallback:!1},animations:{_fallback:"animation"}},additionalOptionScopes:["interaction"]};return Chart.register(controllers,scales,elements,plugins),Chart.helpers={...helpers},Chart._adapters=_adapters,Chart.Animation=Animation,Chart.Animations=Animations,Chart.animator=animator,Chart.controllers=registry.controllers.items,Chart.DatasetController=DatasetController,Chart.Element=Element,Chart.elements=elements,Chart.Interaction=Interaction,Chart.layouts=layouts,Chart.platforms=platforms,Chart.Scale=Scale,Chart.Ticks=Ticks,Object.assign(Chart,controllers,scales,elements,plugins,platforms),Chart.Chart=Chart,"undefined"!=typeof window&&(window.Chart=Chart),Chart},"object"==typeof exports&&"undefined"!=typeof module?module.exports=factory():"function"==typeof define&&define.amd?define("core/chartjs-lazy",factory):(global="undefined"!=typeof globalThis?globalThis:global||self).Chart=factory(); //# sourceMappingURL=chartjs-lazy.min.js.map \ No newline at end of file diff --git a/lib/amd/build/chartjs-lazy.min.js.map b/lib/amd/build/chartjs-lazy.min.js.map index d9695cea747..b502d6bb1ea 100644 --- a/lib/amd/build/chartjs-lazy.min.js.map +++ b/lib/amd/build/chartjs-lazy.min.js.map @@ -1 +1 @@ -{"version":3,"file":"chartjs-lazy.min.js","sources":["../src/chartjs-lazy.js"],"sourcesContent":["/*!\n * Chart.js v3.8.0\n * https://www.chartjs.org\n * (c) 2022 Chart.js Contributors\n * Released under the MIT License\n */\n\n/**\n * Description of import into Moodle:\n *\n * - Download Chartjs source code (zip) file from https://github.com/chartjs/Chart.js/releases/latest.\n * - You must build Chart.js to generate the dist files (https://www.chartjs.org/docs/latest/developers/contributing.html#building-and-testing).\n * - Copy /dist/chart.js content to lib/amd/src/chartjs-lazy.js.\n * - Convert line endings to LF-Unix format.\n * - Keep these instructions to the file.\n * - Visit lib/tests/other/chartjstestpage.php to see if the library still works after the update.\n */\n\n(function (global, factory) {\ntypeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :\ntypeof define === 'function' && define.amd ? define(factory) :\n(global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.Chart = factory());\n})(this, (function () { 'use strict';\n\nfunction fontString(pixelSize, fontStyle, fontFamily) {\n return fontStyle + ' ' + pixelSize + 'px ' + fontFamily;\n}\nconst requestAnimFrame = (function() {\n if (typeof window === 'undefined') {\n return function(callback) {\n return callback();\n };\n }\n return window.requestAnimationFrame;\n}());\nfunction throttled(fn, thisArg, updateFn) {\n const updateArgs = updateFn || ((args) => Array.prototype.slice.call(args));\n let ticking = false;\n let args = [];\n return function(...rest) {\n args = updateArgs(rest);\n if (!ticking) {\n ticking = true;\n requestAnimFrame.call(window, () => {\n ticking = false;\n fn.apply(thisArg, args);\n });\n }\n };\n}\nfunction debounce(fn, delay) {\n let timeout;\n return function(...args) {\n if (delay) {\n clearTimeout(timeout);\n timeout = setTimeout(fn, delay, args);\n } else {\n fn.apply(this, args);\n }\n return delay;\n };\n}\nconst _toLeftRightCenter = (align) => align === 'start' ? 'left' : align === 'end' ? 'right' : 'center';\nconst _alignStartEnd = (align, start, end) => align === 'start' ? start : align === 'end' ? end : (start + end) / 2;\nconst _textX = (align, left, right, rtl) => {\n const check = rtl ? 'left' : 'right';\n return align === check ? right : align === 'center' ? (left + right) / 2 : left;\n};\n\nclass Animator {\n constructor() {\n this._request = null;\n this._charts = new Map();\n this._running = false;\n this._lastDate = undefined;\n }\n _notify(chart, anims, date, type) {\n const callbacks = anims.listeners[type];\n const numSteps = anims.duration;\n callbacks.forEach(fn => fn({\n chart,\n initial: anims.initial,\n numSteps,\n currentStep: Math.min(date - anims.start, numSteps)\n }));\n }\n _refresh() {\n if (this._request) {\n return;\n }\n this._running = true;\n this._request = requestAnimFrame.call(window, () => {\n this._update();\n this._request = null;\n if (this._running) {\n this._refresh();\n }\n });\n }\n _update(date = Date.now()) {\n let remaining = 0;\n this._charts.forEach((anims, chart) => {\n if (!anims.running || !anims.items.length) {\n return;\n }\n const items = anims.items;\n let i = items.length - 1;\n let draw = false;\n let item;\n for (; i >= 0; --i) {\n item = items[i];\n if (item._active) {\n if (item._total > anims.duration) {\n anims.duration = item._total;\n }\n item.tick(date);\n draw = true;\n } else {\n items[i] = items[items.length - 1];\n items.pop();\n }\n }\n if (draw) {\n chart.draw();\n this._notify(chart, anims, date, 'progress');\n }\n if (!items.length) {\n anims.running = false;\n this._notify(chart, anims, date, 'complete');\n anims.initial = false;\n }\n remaining += items.length;\n });\n this._lastDate = date;\n if (remaining === 0) {\n this._running = false;\n }\n }\n _getAnims(chart) {\n const charts = this._charts;\n let anims = charts.get(chart);\n if (!anims) {\n anims = {\n running: false,\n initial: true,\n items: [],\n listeners: {\n complete: [],\n progress: []\n }\n };\n charts.set(chart, anims);\n }\n return anims;\n }\n listen(chart, event, cb) {\n this._getAnims(chart).listeners[event].push(cb);\n }\n add(chart, items) {\n if (!items || !items.length) {\n return;\n }\n this._getAnims(chart).items.push(...items);\n }\n has(chart) {\n return this._getAnims(chart).items.length > 0;\n }\n start(chart) {\n const anims = this._charts.get(chart);\n if (!anims) {\n return;\n }\n anims.running = true;\n anims.start = Date.now();\n anims.duration = anims.items.reduce((acc, cur) => Math.max(acc, cur._duration), 0);\n this._refresh();\n }\n running(chart) {\n if (!this._running) {\n return false;\n }\n const anims = this._charts.get(chart);\n if (!anims || !anims.running || !anims.items.length) {\n return false;\n }\n return true;\n }\n stop(chart) {\n const anims = this._charts.get(chart);\n if (!anims || !anims.items.length) {\n return;\n }\n const items = anims.items;\n let i = items.length - 1;\n for (; i >= 0; --i) {\n items[i].cancel();\n }\n anims.items = [];\n this._notify(chart, anims, Date.now(), 'complete');\n }\n remove(chart) {\n return this._charts.delete(chart);\n }\n}\nvar animator = new Animator();\n\n/*!\n * @kurkle/color v0.2.1\n * https://github.com/kurkle/color#readme\n * (c) 2022 Jukka Kurkela\n * Released under the MIT License\n */\nfunction round(v) {\n return v + 0.5 | 0;\n}\nconst lim = (v, l, h) => Math.max(Math.min(v, h), l);\nfunction p2b(v) {\n return lim(round(v * 2.55), 0, 255);\n}\nfunction n2b(v) {\n return lim(round(v * 255), 0, 255);\n}\nfunction b2n(v) {\n return lim(round(v / 2.55) / 100, 0, 1);\n}\nfunction n2p(v) {\n return lim(round(v * 100), 0, 100);\n}\nconst map$1 = {0: 0, 1: 1, 2: 2, 3: 3, 4: 4, 5: 5, 6: 6, 7: 7, 8: 8, 9: 9, A: 10, B: 11, C: 12, D: 13, E: 14, F: 15, a: 10, b: 11, c: 12, d: 13, e: 14, f: 15};\nconst hex = [...'0123456789ABCDEF'];\nconst h1 = b => hex[b & 0xF];\nconst h2 = b => hex[(b & 0xF0) >> 4] + hex[b & 0xF];\nconst eq = b => ((b & 0xF0) >> 4) === (b & 0xF);\nconst isShort = v => eq(v.r) && eq(v.g) && eq(v.b) && eq(v.a);\nfunction hexParse(str) {\n var len = str.length;\n var ret;\n if (str[0] === '#') {\n if (len === 4 || len === 5) {\n ret = {\n r: 255 & map$1[str[1]] * 17,\n g: 255 & map$1[str[2]] * 17,\n b: 255 & map$1[str[3]] * 17,\n a: len === 5 ? map$1[str[4]] * 17 : 255\n };\n } else if (len === 7 || len === 9) {\n ret = {\n r: map$1[str[1]] << 4 | map$1[str[2]],\n g: map$1[str[3]] << 4 | map$1[str[4]],\n b: map$1[str[5]] << 4 | map$1[str[6]],\n a: len === 9 ? (map$1[str[7]] << 4 | map$1[str[8]]) : 255\n };\n }\n }\n return ret;\n}\nconst alpha = (a, f) => a < 255 ? f(a) : '';\nfunction hexString(v) {\n var f = isShort(v) ? h1 : h2;\n return v\n ? '#' + f(v.r) + f(v.g) + f(v.b) + alpha(v.a, f)\n : undefined;\n}\nconst HUE_RE = /^(hsla?|hwb|hsv)\\(\\s*([-+.e\\d]+)(?:deg)?[\\s,]+([-+.e\\d]+)%[\\s,]+([-+.e\\d]+)%(?:[\\s,]+([-+.e\\d]+)(%)?)?\\s*\\)$/;\nfunction hsl2rgbn(h, s, l) {\n const a = s * Math.min(l, 1 - l);\n const f = (n, k = (n + h / 30) % 12) => l - a * Math.max(Math.min(k - 3, 9 - k, 1), -1);\n return [f(0), f(8), f(4)];\n}\nfunction hsv2rgbn(h, s, v) {\n const f = (n, k = (n + h / 60) % 6) => v - v * s * Math.max(Math.min(k, 4 - k, 1), 0);\n return [f(5), f(3), f(1)];\n}\nfunction hwb2rgbn(h, w, b) {\n const rgb = hsl2rgbn(h, 1, 0.5);\n let i;\n if (w + b > 1) {\n i = 1 / (w + b);\n w *= i;\n b *= i;\n }\n for (i = 0; i < 3; i++) {\n rgb[i] *= 1 - w - b;\n rgb[i] += w;\n }\n return rgb;\n}\nfunction hueValue(r, g, b, d, max) {\n if (r === max) {\n return ((g - b) / d) + (g < b ? 6 : 0);\n }\n if (g === max) {\n return (b - r) / d + 2;\n }\n return (r - g) / d + 4;\n}\nfunction rgb2hsl(v) {\n const range = 255;\n const r = v.r / range;\n const g = v.g / range;\n const b = v.b / range;\n const max = Math.max(r, g, b);\n const min = Math.min(r, g, b);\n const l = (max + min) / 2;\n let h, s, d;\n if (max !== min) {\n d = max - min;\n s = l > 0.5 ? d / (2 - max - min) : d / (max + min);\n h = hueValue(r, g, b, d, max);\n h = h * 60 + 0.5;\n }\n return [h | 0, s || 0, l];\n}\nfunction calln(f, a, b, c) {\n return (\n Array.isArray(a)\n ? f(a[0], a[1], a[2])\n : f(a, b, c)\n ).map(n2b);\n}\nfunction hsl2rgb(h, s, l) {\n return calln(hsl2rgbn, h, s, l);\n}\nfunction hwb2rgb(h, w, b) {\n return calln(hwb2rgbn, h, w, b);\n}\nfunction hsv2rgb(h, s, v) {\n return calln(hsv2rgbn, h, s, v);\n}\nfunction hue(h) {\n return (h % 360 + 360) % 360;\n}\nfunction hueParse(str) {\n const m = HUE_RE.exec(str);\n let a = 255;\n let v;\n if (!m) {\n return;\n }\n if (m[5] !== v) {\n a = m[6] ? p2b(+m[5]) : n2b(+m[5]);\n }\n const h = hue(+m[2]);\n const p1 = +m[3] / 100;\n const p2 = +m[4] / 100;\n if (m[1] === 'hwb') {\n v = hwb2rgb(h, p1, p2);\n } else if (m[1] === 'hsv') {\n v = hsv2rgb(h, p1, p2);\n } else {\n v = hsl2rgb(h, p1, p2);\n }\n return {\n r: v[0],\n g: v[1],\n b: v[2],\n a: a\n };\n}\nfunction rotate(v, deg) {\n var h = rgb2hsl(v);\n h[0] = hue(h[0] + deg);\n h = hsl2rgb(h);\n v.r = h[0];\n v.g = h[1];\n v.b = h[2];\n}\nfunction hslString(v) {\n if (!v) {\n return;\n }\n const a = rgb2hsl(v);\n const h = a[0];\n const s = n2p(a[1]);\n const l = n2p(a[2]);\n return v.a < 255\n ? `hsla(${h}, ${s}%, ${l}%, ${b2n(v.a)})`\n : `hsl(${h}, ${s}%, ${l}%)`;\n}\nconst map$2 = {\n x: 'dark',\n Z: 'light',\n Y: 're',\n X: 'blu',\n W: 'gr',\n V: 'medium',\n U: 'slate',\n A: 'ee',\n T: 'ol',\n S: 'or',\n B: 'ra',\n C: 'lateg',\n D: 'ights',\n R: 'in',\n Q: 'turquois',\n E: 'hi',\n P: 'ro',\n O: 'al',\n N: 'le',\n M: 'de',\n L: 'yello',\n F: 'en',\n K: 'ch',\n G: 'arks',\n H: 'ea',\n I: 'ightg',\n J: 'wh'\n};\nconst names$1 = {\n OiceXe: 'f0f8ff',\n antiquewEte: 'faebd7',\n aqua: 'ffff',\n aquamarRe: '7fffd4',\n azuY: 'f0ffff',\n beige: 'f5f5dc',\n bisque: 'ffe4c4',\n black: '0',\n blanKedOmond: 'ffebcd',\n Xe: 'ff',\n XeviTet: '8a2be2',\n bPwn: 'a52a2a',\n burlywood: 'deb887',\n caMtXe: '5f9ea0',\n KartYuse: '7fff00',\n KocTate: 'd2691e',\n cSO: 'ff7f50',\n cSnflowerXe: '6495ed',\n cSnsilk: 'fff8dc',\n crimson: 'dc143c',\n cyan: 'ffff',\n xXe: '8b',\n xcyan: '8b8b',\n xgTMnPd: 'b8860b',\n xWay: 'a9a9a9',\n xgYF: '6400',\n xgYy: 'a9a9a9',\n xkhaki: 'bdb76b',\n xmagFta: '8b008b',\n xTivegYF: '556b2f',\n xSange: 'ff8c00',\n xScEd: '9932cc',\n xYd: '8b0000',\n xsOmon: 'e9967a',\n xsHgYF: '8fbc8f',\n xUXe: '483d8b',\n xUWay: '2f4f4f',\n xUgYy: '2f4f4f',\n xQe: 'ced1',\n xviTet: '9400d3',\n dAppRk: 'ff1493',\n dApskyXe: 'bfff',\n dimWay: '696969',\n dimgYy: '696969',\n dodgerXe: '1e90ff',\n fiYbrick: 'b22222',\n flSOwEte: 'fffaf0',\n foYstWAn: '228b22',\n fuKsia: 'ff00ff',\n gaRsbSo: 'dcdcdc',\n ghostwEte: 'f8f8ff',\n gTd: 'ffd700',\n gTMnPd: 'daa520',\n Way: '808080',\n gYF: '8000',\n gYFLw: 'adff2f',\n gYy: '808080',\n honeyMw: 'f0fff0',\n hotpRk: 'ff69b4',\n RdianYd: 'cd5c5c',\n Rdigo: '4b0082',\n ivSy: 'fffff0',\n khaki: 'f0e68c',\n lavFMr: 'e6e6fa',\n lavFMrXsh: 'fff0f5',\n lawngYF: '7cfc00',\n NmoncEffon: 'fffacd',\n ZXe: 'add8e6',\n ZcSO: 'f08080',\n Zcyan: 'e0ffff',\n ZgTMnPdLw: 'fafad2',\n ZWay: 'd3d3d3',\n ZgYF: '90ee90',\n ZgYy: 'd3d3d3',\n ZpRk: 'ffb6c1',\n ZsOmon: 'ffa07a',\n ZsHgYF: '20b2aa',\n ZskyXe: '87cefa',\n ZUWay: '778899',\n ZUgYy: '778899',\n ZstAlXe: 'b0c4de',\n ZLw: 'ffffe0',\n lime: 'ff00',\n limegYF: '32cd32',\n lRF: 'faf0e6',\n magFta: 'ff00ff',\n maPon: '800000',\n VaquamarRe: '66cdaa',\n VXe: 'cd',\n VScEd: 'ba55d3',\n VpurpN: '9370db',\n VsHgYF: '3cb371',\n VUXe: '7b68ee',\n VsprRggYF: 'fa9a',\n VQe: '48d1cc',\n VviTetYd: 'c71585',\n midnightXe: '191970',\n mRtcYam: 'f5fffa',\n mistyPse: 'ffe4e1',\n moccasR: 'ffe4b5',\n navajowEte: 'ffdead',\n navy: '80',\n Tdlace: 'fdf5e6',\n Tive: '808000',\n TivedBb: '6b8e23',\n Sange: 'ffa500',\n SangeYd: 'ff4500',\n ScEd: 'da70d6',\n pOegTMnPd: 'eee8aa',\n pOegYF: '98fb98',\n pOeQe: 'afeeee',\n pOeviTetYd: 'db7093',\n papayawEp: 'ffefd5',\n pHKpuff: 'ffdab9',\n peru: 'cd853f',\n pRk: 'ffc0cb',\n plum: 'dda0dd',\n powMrXe: 'b0e0e6',\n purpN: '800080',\n YbeccapurpN: '663399',\n Yd: 'ff0000',\n Psybrown: 'bc8f8f',\n PyOXe: '4169e1',\n saddNbPwn: '8b4513',\n sOmon: 'fa8072',\n sandybPwn: 'f4a460',\n sHgYF: '2e8b57',\n sHshell: 'fff5ee',\n siFna: 'a0522d',\n silver: 'c0c0c0',\n skyXe: '87ceeb',\n UXe: '6a5acd',\n UWay: '708090',\n UgYy: '708090',\n snow: 'fffafa',\n sprRggYF: 'ff7f',\n stAlXe: '4682b4',\n tan: 'd2b48c',\n teO: '8080',\n tEstN: 'd8bfd8',\n tomato: 'ff6347',\n Qe: '40e0d0',\n viTet: 'ee82ee',\n JHt: 'f5deb3',\n wEte: 'ffffff',\n wEtesmoke: 'f5f5f5',\n Lw: 'ffff00',\n LwgYF: '9acd32'\n};\nfunction unpack() {\n const unpacked = {};\n const keys = Object.keys(names$1);\n const tkeys = Object.keys(map$2);\n let i, j, k, ok, nk;\n for (i = 0; i < keys.length; i++) {\n ok = nk = keys[i];\n for (j = 0; j < tkeys.length; j++) {\n k = tkeys[j];\n nk = nk.replace(k, map$2[k]);\n }\n k = parseInt(names$1[ok], 16);\n unpacked[nk] = [k >> 16 & 0xFF, k >> 8 & 0xFF, k & 0xFF];\n }\n return unpacked;\n}\nlet names;\nfunction nameParse(str) {\n if (!names) {\n names = unpack();\n names.transparent = [0, 0, 0, 0];\n }\n const a = names[str.toLowerCase()];\n return a && {\n r: a[0],\n g: a[1],\n b: a[2],\n a: a.length === 4 ? a[3] : 255\n };\n}\nconst RGB_RE = /^rgba?\\(\\s*([-+.\\d]+)(%)?[\\s,]+([-+.e\\d]+)(%)?[\\s,]+([-+.e\\d]+)(%)?(?:[\\s,/]+([-+.e\\d]+)(%)?)?\\s*\\)$/;\nfunction rgbParse(str) {\n const m = RGB_RE.exec(str);\n let a = 255;\n let r, g, b;\n if (!m) {\n return;\n }\n if (m[7] !== r) {\n const v = +m[7];\n a = m[8] ? p2b(v) : lim(v * 255, 0, 255);\n }\n r = +m[1];\n g = +m[3];\n b = +m[5];\n r = 255 & (m[2] ? p2b(r) : lim(r, 0, 255));\n g = 255 & (m[4] ? p2b(g) : lim(g, 0, 255));\n b = 255 & (m[6] ? p2b(b) : lim(b, 0, 255));\n return {\n r: r,\n g: g,\n b: b,\n a: a\n };\n}\nfunction rgbString(v) {\n return v && (\n v.a < 255\n ? `rgba(${v.r}, ${v.g}, ${v.b}, ${b2n(v.a)})`\n : `rgb(${v.r}, ${v.g}, ${v.b})`\n );\n}\nconst to = v => v <= 0.0031308 ? v * 12.92 : Math.pow(v, 1.0 / 2.4) * 1.055 - 0.055;\nconst from = v => v <= 0.04045 ? v / 12.92 : Math.pow((v + 0.055) / 1.055, 2.4);\nfunction interpolate$1(rgb1, rgb2, t) {\n const r = from(b2n(rgb1.r));\n const g = from(b2n(rgb1.g));\n const b = from(b2n(rgb1.b));\n return {\n r: n2b(to(r + t * (from(b2n(rgb2.r)) - r))),\n g: n2b(to(g + t * (from(b2n(rgb2.g)) - g))),\n b: n2b(to(b + t * (from(b2n(rgb2.b)) - b))),\n a: rgb1.a + t * (rgb2.a - rgb1.a)\n };\n}\nfunction modHSL(v, i, ratio) {\n if (v) {\n let tmp = rgb2hsl(v);\n tmp[i] = Math.max(0, Math.min(tmp[i] + tmp[i] * ratio, i === 0 ? 360 : 1));\n tmp = hsl2rgb(tmp);\n v.r = tmp[0];\n v.g = tmp[1];\n v.b = tmp[2];\n }\n}\nfunction clone$1(v, proto) {\n return v ? Object.assign(proto || {}, v) : v;\n}\nfunction fromObject(input) {\n var v = {r: 0, g: 0, b: 0, a: 255};\n if (Array.isArray(input)) {\n if (input.length >= 3) {\n v = {r: input[0], g: input[1], b: input[2], a: 255};\n if (input.length > 3) {\n v.a = n2b(input[3]);\n }\n }\n } else {\n v = clone$1(input, {r: 0, g: 0, b: 0, a: 1});\n v.a = n2b(v.a);\n }\n return v;\n}\nfunction functionParse(str) {\n if (str.charAt(0) === 'r') {\n return rgbParse(str);\n }\n return hueParse(str);\n}\nclass Color {\n constructor(input) {\n if (input instanceof Color) {\n return input;\n }\n const type = typeof input;\n let v;\n if (type === 'object') {\n v = fromObject(input);\n } else if (type === 'string') {\n v = hexParse(input) || nameParse(input) || functionParse(input);\n }\n this._rgb = v;\n this._valid = !!v;\n }\n get valid() {\n return this._valid;\n }\n get rgb() {\n var v = clone$1(this._rgb);\n if (v) {\n v.a = b2n(v.a);\n }\n return v;\n }\n set rgb(obj) {\n this._rgb = fromObject(obj);\n }\n rgbString() {\n return this._valid ? rgbString(this._rgb) : undefined;\n }\n hexString() {\n return this._valid ? hexString(this._rgb) : undefined;\n }\n hslString() {\n return this._valid ? hslString(this._rgb) : undefined;\n }\n mix(color, weight) {\n if (color) {\n const c1 = this.rgb;\n const c2 = color.rgb;\n let w2;\n const p = weight === w2 ? 0.5 : weight;\n const w = 2 * p - 1;\n const a = c1.a - c2.a;\n const w1 = ((w * a === -1 ? w : (w + a) / (1 + w * a)) + 1) / 2.0;\n w2 = 1 - w1;\n c1.r = 0xFF & w1 * c1.r + w2 * c2.r + 0.5;\n c1.g = 0xFF & w1 * c1.g + w2 * c2.g + 0.5;\n c1.b = 0xFF & w1 * c1.b + w2 * c2.b + 0.5;\n c1.a = p * c1.a + (1 - p) * c2.a;\n this.rgb = c1;\n }\n return this;\n }\n interpolate(color, t) {\n if (color) {\n this._rgb = interpolate$1(this._rgb, color._rgb, t);\n }\n return this;\n }\n clone() {\n return new Color(this.rgb);\n }\n alpha(a) {\n this._rgb.a = n2b(a);\n return this;\n }\n clearer(ratio) {\n const rgb = this._rgb;\n rgb.a *= 1 - ratio;\n return this;\n }\n greyscale() {\n const rgb = this._rgb;\n const val = round(rgb.r * 0.3 + rgb.g * 0.59 + rgb.b * 0.11);\n rgb.r = rgb.g = rgb.b = val;\n return this;\n }\n opaquer(ratio) {\n const rgb = this._rgb;\n rgb.a *= 1 + ratio;\n return this;\n }\n negate() {\n const v = this._rgb;\n v.r = 255 - v.r;\n v.g = 255 - v.g;\n v.b = 255 - v.b;\n return this;\n }\n lighten(ratio) {\n modHSL(this._rgb, 2, ratio);\n return this;\n }\n darken(ratio) {\n modHSL(this._rgb, 2, -ratio);\n return this;\n }\n saturate(ratio) {\n modHSL(this._rgb, 1, ratio);\n return this;\n }\n desaturate(ratio) {\n modHSL(this._rgb, 1, -ratio);\n return this;\n }\n rotate(deg) {\n rotate(this._rgb, deg);\n return this;\n }\n}\nfunction index_esm(input) {\n return new Color(input);\n}\n\nfunction isPatternOrGradient(value) {\n if (value && typeof value === 'object') {\n const type = value.toString();\n return type === '[object CanvasPattern]' || type === '[object CanvasGradient]';\n }\n return false;\n}\nfunction color(value) {\n return isPatternOrGradient(value) ? value : index_esm(value);\n}\nfunction getHoverColor(value) {\n return isPatternOrGradient(value)\n ? value\n : index_esm(value).saturate(0.5).darken(0.1).hexString();\n}\n\nfunction noop() {}\nconst uid = (function() {\n let id = 0;\n return function() {\n return id++;\n };\n}());\nfunction isNullOrUndef(value) {\n return value === null || typeof value === 'undefined';\n}\nfunction isArray(value) {\n if (Array.isArray && Array.isArray(value)) {\n return true;\n }\n const type = Object.prototype.toString.call(value);\n if (type.slice(0, 7) === '[object' && type.slice(-6) === 'Array]') {\n return true;\n }\n return false;\n}\nfunction isObject(value) {\n return value !== null && Object.prototype.toString.call(value) === '[object Object]';\n}\nconst isNumberFinite = (value) => (typeof value === 'number' || value instanceof Number) && isFinite(+value);\nfunction finiteOrDefault(value, defaultValue) {\n return isNumberFinite(value) ? value : defaultValue;\n}\nfunction valueOrDefault(value, defaultValue) {\n return typeof value === 'undefined' ? defaultValue : value;\n}\nconst toPercentage = (value, dimension) =>\n typeof value === 'string' && value.endsWith('%') ?\n parseFloat(value) / 100\n : value / dimension;\nconst toDimension = (value, dimension) =>\n typeof value === 'string' && value.endsWith('%') ?\n parseFloat(value) / 100 * dimension\n : +value;\nfunction callback(fn, args, thisArg) {\n if (fn && typeof fn.call === 'function') {\n return fn.apply(thisArg, args);\n }\n}\nfunction each(loopable, fn, thisArg, reverse) {\n let i, len, keys;\n if (isArray(loopable)) {\n len = loopable.length;\n if (reverse) {\n for (i = len - 1; i >= 0; i--) {\n fn.call(thisArg, loopable[i], i);\n }\n } else {\n for (i = 0; i < len; i++) {\n fn.call(thisArg, loopable[i], i);\n }\n }\n } else if (isObject(loopable)) {\n keys = Object.keys(loopable);\n len = keys.length;\n for (i = 0; i < len; i++) {\n fn.call(thisArg, loopable[keys[i]], keys[i]);\n }\n }\n}\nfunction _elementsEqual(a0, a1) {\n let i, ilen, v0, v1;\n if (!a0 || !a1 || a0.length !== a1.length) {\n return false;\n }\n for (i = 0, ilen = a0.length; i < ilen; ++i) {\n v0 = a0[i];\n v1 = a1[i];\n if (v0.datasetIndex !== v1.datasetIndex || v0.index !== v1.index) {\n return false;\n }\n }\n return true;\n}\nfunction clone(source) {\n if (isArray(source)) {\n return source.map(clone);\n }\n if (isObject(source)) {\n const target = Object.create(null);\n const keys = Object.keys(source);\n const klen = keys.length;\n let k = 0;\n for (; k < klen; ++k) {\n target[keys[k]] = clone(source[keys[k]]);\n }\n return target;\n }\n return source;\n}\nfunction isValidKey(key) {\n return ['__proto__', 'prototype', 'constructor'].indexOf(key) === -1;\n}\nfunction _merger(key, target, source, options) {\n if (!isValidKey(key)) {\n return;\n }\n const tval = target[key];\n const sval = source[key];\n if (isObject(tval) && isObject(sval)) {\n merge(tval, sval, options);\n } else {\n target[key] = clone(sval);\n }\n}\nfunction merge(target, source, options) {\n const sources = isArray(source) ? source : [source];\n const ilen = sources.length;\n if (!isObject(target)) {\n return target;\n }\n options = options || {};\n const merger = options.merger || _merger;\n for (let i = 0; i < ilen; ++i) {\n source = sources[i];\n if (!isObject(source)) {\n continue;\n }\n const keys = Object.keys(source);\n for (let k = 0, klen = keys.length; k < klen; ++k) {\n merger(keys[k], target, source, options);\n }\n }\n return target;\n}\nfunction mergeIf(target, source) {\n return merge(target, source, {merger: _mergerIf});\n}\nfunction _mergerIf(key, target, source) {\n if (!isValidKey(key)) {\n return;\n }\n const tval = target[key];\n const sval = source[key];\n if (isObject(tval) && isObject(sval)) {\n mergeIf(tval, sval);\n } else if (!Object.prototype.hasOwnProperty.call(target, key)) {\n target[key] = clone(sval);\n }\n}\nfunction _deprecated(scope, value, previous, current) {\n if (value !== undefined) {\n console.warn(scope + ': \"' + previous +\n\t\t\t'\" is deprecated. Please use \"' + current + '\" instead');\n }\n}\nconst emptyString = '';\nconst dot = '.';\nfunction indexOfDotOrLength(key, start) {\n const idx = key.indexOf(dot, start);\n return idx === -1 ? key.length : idx;\n}\nfunction resolveObjectKey(obj, key) {\n if (key === emptyString) {\n return obj;\n }\n let pos = 0;\n let idx = indexOfDotOrLength(key, pos);\n while (obj && idx > pos) {\n obj = obj[key.slice(pos, idx)];\n pos = idx + 1;\n idx = indexOfDotOrLength(key, pos);\n }\n return obj;\n}\nfunction _capitalize(str) {\n return str.charAt(0).toUpperCase() + str.slice(1);\n}\nconst defined = (value) => typeof value !== 'undefined';\nconst isFunction = (value) => typeof value === 'function';\nconst setsEqual = (a, b) => {\n if (a.size !== b.size) {\n return false;\n }\n for (const item of a) {\n if (!b.has(item)) {\n return false;\n }\n }\n return true;\n};\nfunction _isClickEvent(e) {\n return e.type === 'mouseup' || e.type === 'click' || e.type === 'contextmenu';\n}\n\nconst overrides = Object.create(null);\nconst descriptors = Object.create(null);\nfunction getScope$1(node, key) {\n if (!key) {\n return node;\n }\n const keys = key.split('.');\n for (let i = 0, n = keys.length; i < n; ++i) {\n const k = keys[i];\n node = node[k] || (node[k] = Object.create(null));\n }\n return node;\n}\nfunction set(root, scope, values) {\n if (typeof scope === 'string') {\n return merge(getScope$1(root, scope), values);\n }\n return merge(getScope$1(root, ''), scope);\n}\nclass Defaults {\n constructor(_descriptors) {\n this.animation = undefined;\n this.backgroundColor = 'rgba(0,0,0,0.1)';\n this.borderColor = 'rgba(0,0,0,0.1)';\n this.color = '#666';\n this.datasets = {};\n this.devicePixelRatio = (context) => context.chart.platform.getDevicePixelRatio();\n this.elements = {};\n this.events = [\n 'mousemove',\n 'mouseout',\n 'click',\n 'touchstart',\n 'touchmove'\n ];\n this.font = {\n family: \"'Helvetica Neue', 'Helvetica', 'Arial', sans-serif\",\n size: 12,\n style: 'normal',\n lineHeight: 1.2,\n weight: null\n };\n this.hover = {};\n this.hoverBackgroundColor = (ctx, options) => getHoverColor(options.backgroundColor);\n this.hoverBorderColor = (ctx, options) => getHoverColor(options.borderColor);\n this.hoverColor = (ctx, options) => getHoverColor(options.color);\n this.indexAxis = 'x';\n this.interaction = {\n mode: 'nearest',\n intersect: true,\n includeInvisible: false\n };\n this.maintainAspectRatio = true;\n this.onHover = null;\n this.onClick = null;\n this.parsing = true;\n this.plugins = {};\n this.responsive = true;\n this.scale = undefined;\n this.scales = {};\n this.showLine = true;\n this.drawActiveElementsOnTop = true;\n this.describe(_descriptors);\n }\n set(scope, values) {\n return set(this, scope, values);\n }\n get(scope) {\n return getScope$1(this, scope);\n }\n describe(scope, values) {\n return set(descriptors, scope, values);\n }\n override(scope, values) {\n return set(overrides, scope, values);\n }\n route(scope, name, targetScope, targetName) {\n const scopeObject = getScope$1(this, scope);\n const targetScopeObject = getScope$1(this, targetScope);\n const privateName = '_' + name;\n Object.defineProperties(scopeObject, {\n [privateName]: {\n value: scopeObject[name],\n writable: true\n },\n [name]: {\n enumerable: true,\n get() {\n const local = this[privateName];\n const target = targetScopeObject[targetName];\n if (isObject(local)) {\n return Object.assign({}, target, local);\n }\n return valueOrDefault(local, target);\n },\n set(value) {\n this[privateName] = value;\n }\n }\n });\n }\n}\nvar defaults = new Defaults({\n _scriptable: (name) => !name.startsWith('on'),\n _indexable: (name) => name !== 'events',\n hover: {\n _fallback: 'interaction'\n },\n interaction: {\n _scriptable: false,\n _indexable: false,\n }\n});\n\nfunction _lookup(table, value, cmp) {\n cmp = cmp || ((index) => table[index] < value);\n let hi = table.length - 1;\n let lo = 0;\n let mid;\n while (hi - lo > 1) {\n mid = (lo + hi) >> 1;\n if (cmp(mid)) {\n lo = mid;\n } else {\n hi = mid;\n }\n }\n return {lo, hi};\n}\nconst _lookupByKey = (table, key, value) =>\n _lookup(table, value, index => table[index][key] < value);\nconst _rlookupByKey = (table, key, value) =>\n _lookup(table, value, index => table[index][key] >= value);\nfunction _filterBetween(values, min, max) {\n let start = 0;\n let end = values.length;\n while (start < end && values[start] < min) {\n start++;\n }\n while (end > start && values[end - 1] > max) {\n end--;\n }\n return start > 0 || end < values.length\n ? values.slice(start, end)\n : values;\n}\nconst arrayEvents = ['push', 'pop', 'shift', 'splice', 'unshift'];\nfunction listenArrayEvents(array, listener) {\n if (array._chartjs) {\n array._chartjs.listeners.push(listener);\n return;\n }\n Object.defineProperty(array, '_chartjs', {\n configurable: true,\n enumerable: false,\n value: {\n listeners: [listener]\n }\n });\n arrayEvents.forEach((key) => {\n const method = '_onData' + _capitalize(key);\n const base = array[key];\n Object.defineProperty(array, key, {\n configurable: true,\n enumerable: false,\n value(...args) {\n const res = base.apply(this, args);\n array._chartjs.listeners.forEach((object) => {\n if (typeof object[method] === 'function') {\n object[method](...args);\n }\n });\n return res;\n }\n });\n });\n}\nfunction unlistenArrayEvents(array, listener) {\n const stub = array._chartjs;\n if (!stub) {\n return;\n }\n const listeners = stub.listeners;\n const index = listeners.indexOf(listener);\n if (index !== -1) {\n listeners.splice(index, 1);\n }\n if (listeners.length > 0) {\n return;\n }\n arrayEvents.forEach((key) => {\n delete array[key];\n });\n delete array._chartjs;\n}\nfunction _arrayUnique(items) {\n const set = new Set();\n let i, ilen;\n for (i = 0, ilen = items.length; i < ilen; ++i) {\n set.add(items[i]);\n }\n if (set.size === ilen) {\n return items;\n }\n return Array.from(set);\n}\n\nconst PI = Math.PI;\nconst TAU = 2 * PI;\nconst PITAU = TAU + PI;\nconst INFINITY = Number.POSITIVE_INFINITY;\nconst RAD_PER_DEG = PI / 180;\nconst HALF_PI = PI / 2;\nconst QUARTER_PI = PI / 4;\nconst TWO_THIRDS_PI = PI * 2 / 3;\nconst log10 = Math.log10;\nconst sign = Math.sign;\nfunction niceNum(range) {\n const roundedRange = Math.round(range);\n range = almostEquals(range, roundedRange, range / 1000) ? roundedRange : range;\n const niceRange = Math.pow(10, Math.floor(log10(range)));\n const fraction = range / niceRange;\n const niceFraction = fraction <= 1 ? 1 : fraction <= 2 ? 2 : fraction <= 5 ? 5 : 10;\n return niceFraction * niceRange;\n}\nfunction _factorize(value) {\n const result = [];\n const sqrt = Math.sqrt(value);\n let i;\n for (i = 1; i < sqrt; i++) {\n if (value % i === 0) {\n result.push(i);\n result.push(value / i);\n }\n }\n if (sqrt === (sqrt | 0)) {\n result.push(sqrt);\n }\n result.sort((a, b) => a - b).pop();\n return result;\n}\nfunction isNumber(n) {\n return !isNaN(parseFloat(n)) && isFinite(n);\n}\nfunction almostEquals(x, y, epsilon) {\n return Math.abs(x - y) < epsilon;\n}\nfunction almostWhole(x, epsilon) {\n const rounded = Math.round(x);\n return ((rounded - epsilon) <= x) && ((rounded + epsilon) >= x);\n}\nfunction _setMinAndMaxByKey(array, target, property) {\n let i, ilen, value;\n for (i = 0, ilen = array.length; i < ilen; i++) {\n value = array[i][property];\n if (!isNaN(value)) {\n target.min = Math.min(target.min, value);\n target.max = Math.max(target.max, value);\n }\n }\n}\nfunction toRadians(degrees) {\n return degrees * (PI / 180);\n}\nfunction toDegrees(radians) {\n return radians * (180 / PI);\n}\nfunction _decimalPlaces(x) {\n if (!isNumberFinite(x)) {\n return;\n }\n let e = 1;\n let p = 0;\n while (Math.round(x * e) / e !== x) {\n e *= 10;\n p++;\n }\n return p;\n}\nfunction getAngleFromPoint(centrePoint, anglePoint) {\n const distanceFromXCenter = anglePoint.x - centrePoint.x;\n const distanceFromYCenter = anglePoint.y - centrePoint.y;\n const radialDistanceFromCenter = Math.sqrt(distanceFromXCenter * distanceFromXCenter + distanceFromYCenter * distanceFromYCenter);\n let angle = Math.atan2(distanceFromYCenter, distanceFromXCenter);\n if (angle < (-0.5 * PI)) {\n angle += TAU;\n }\n return {\n angle,\n distance: radialDistanceFromCenter\n };\n}\nfunction distanceBetweenPoints(pt1, pt2) {\n return Math.sqrt(Math.pow(pt2.x - pt1.x, 2) + Math.pow(pt2.y - pt1.y, 2));\n}\nfunction _angleDiff(a, b) {\n return (a - b + PITAU) % TAU - PI;\n}\nfunction _normalizeAngle(a) {\n return (a % TAU + TAU) % TAU;\n}\nfunction _angleBetween(angle, start, end, sameAngleIsFullCircle) {\n const a = _normalizeAngle(angle);\n const s = _normalizeAngle(start);\n const e = _normalizeAngle(end);\n const angleToStart = _normalizeAngle(s - a);\n const angleToEnd = _normalizeAngle(e - a);\n const startToAngle = _normalizeAngle(a - s);\n const endToAngle = _normalizeAngle(a - e);\n return a === s || a === e || (sameAngleIsFullCircle && s === e)\n || (angleToStart > angleToEnd && startToAngle < endToAngle);\n}\nfunction _limitValue(value, min, max) {\n return Math.max(min, Math.min(max, value));\n}\nfunction _int16Range(value) {\n return _limitValue(value, -32768, 32767);\n}\nfunction _isBetween(value, start, end, epsilon = 1e-6) {\n return value >= Math.min(start, end) - epsilon && value <= Math.max(start, end) + epsilon;\n}\n\nfunction _isDomSupported() {\n return typeof window !== 'undefined' && typeof document !== 'undefined';\n}\nfunction _getParentNode(domNode) {\n let parent = domNode.parentNode;\n if (parent && parent.toString() === '[object ShadowRoot]') {\n parent = parent.host;\n }\n return parent;\n}\nfunction parseMaxStyle(styleValue, node, parentProperty) {\n let valueInPixels;\n if (typeof styleValue === 'string') {\n valueInPixels = parseInt(styleValue, 10);\n if (styleValue.indexOf('%') !== -1) {\n valueInPixels = valueInPixels / 100 * node.parentNode[parentProperty];\n }\n } else {\n valueInPixels = styleValue;\n }\n return valueInPixels;\n}\nconst getComputedStyle = (element) => window.getComputedStyle(element, null);\nfunction getStyle(el, property) {\n return getComputedStyle(el).getPropertyValue(property);\n}\nconst positions = ['top', 'right', 'bottom', 'left'];\nfunction getPositionedStyle(styles, style, suffix) {\n const result = {};\n suffix = suffix ? '-' + suffix : '';\n for (let i = 0; i < 4; i++) {\n const pos = positions[i];\n result[pos] = parseFloat(styles[style + '-' + pos + suffix]) || 0;\n }\n result.width = result.left + result.right;\n result.height = result.top + result.bottom;\n return result;\n}\nconst useOffsetPos = (x, y, target) => (x > 0 || y > 0) && (!target || !target.shadowRoot);\nfunction getCanvasPosition(e, canvas) {\n const touches = e.touches;\n const source = touches && touches.length ? touches[0] : e;\n const {offsetX, offsetY} = source;\n let box = false;\n let x, y;\n if (useOffsetPos(offsetX, offsetY, e.target)) {\n x = offsetX;\n y = offsetY;\n } else {\n const rect = canvas.getBoundingClientRect();\n x = source.clientX - rect.left;\n y = source.clientY - rect.top;\n box = true;\n }\n return {x, y, box};\n}\nfunction getRelativePosition(evt, chart) {\n if ('native' in evt) {\n return evt;\n }\n const {canvas, currentDevicePixelRatio} = chart;\n const style = getComputedStyle(canvas);\n const borderBox = style.boxSizing === 'border-box';\n const paddings = getPositionedStyle(style, 'padding');\n const borders = getPositionedStyle(style, 'border', 'width');\n const {x, y, box} = getCanvasPosition(evt, canvas);\n const xOffset = paddings.left + (box && borders.left);\n const yOffset = paddings.top + (box && borders.top);\n let {width, height} = chart;\n if (borderBox) {\n width -= paddings.width + borders.width;\n height -= paddings.height + borders.height;\n }\n return {\n x: Math.round((x - xOffset) / width * canvas.width / currentDevicePixelRatio),\n y: Math.round((y - yOffset) / height * canvas.height / currentDevicePixelRatio)\n };\n}\nfunction getContainerSize(canvas, width, height) {\n let maxWidth, maxHeight;\n if (width === undefined || height === undefined) {\n const container = _getParentNode(canvas);\n if (!container) {\n width = canvas.clientWidth;\n height = canvas.clientHeight;\n } else {\n const rect = container.getBoundingClientRect();\n const containerStyle = getComputedStyle(container);\n const containerBorder = getPositionedStyle(containerStyle, 'border', 'width');\n const containerPadding = getPositionedStyle(containerStyle, 'padding');\n width = rect.width - containerPadding.width - containerBorder.width;\n height = rect.height - containerPadding.height - containerBorder.height;\n maxWidth = parseMaxStyle(containerStyle.maxWidth, container, 'clientWidth');\n maxHeight = parseMaxStyle(containerStyle.maxHeight, container, 'clientHeight');\n }\n }\n return {\n width,\n height,\n maxWidth: maxWidth || INFINITY,\n maxHeight: maxHeight || INFINITY\n };\n}\nconst round1 = v => Math.round(v * 10) / 10;\nfunction getMaximumSize(canvas, bbWidth, bbHeight, aspectRatio) {\n const style = getComputedStyle(canvas);\n const margins = getPositionedStyle(style, 'margin');\n const maxWidth = parseMaxStyle(style.maxWidth, canvas, 'clientWidth') || INFINITY;\n const maxHeight = parseMaxStyle(style.maxHeight, canvas, 'clientHeight') || INFINITY;\n const containerSize = getContainerSize(canvas, bbWidth, bbHeight);\n let {width, height} = containerSize;\n if (style.boxSizing === 'content-box') {\n const borders = getPositionedStyle(style, 'border', 'width');\n const paddings = getPositionedStyle(style, 'padding');\n width -= paddings.width + borders.width;\n height -= paddings.height + borders.height;\n }\n width = Math.max(0, width - margins.width);\n height = Math.max(0, aspectRatio ? Math.floor(width / aspectRatio) : height - margins.height);\n width = round1(Math.min(width, maxWidth, containerSize.maxWidth));\n height = round1(Math.min(height, maxHeight, containerSize.maxHeight));\n if (width && !height) {\n height = round1(width / 2);\n }\n return {\n width,\n height\n };\n}\nfunction retinaScale(chart, forceRatio, forceStyle) {\n const pixelRatio = forceRatio || 1;\n const deviceHeight = Math.floor(chart.height * pixelRatio);\n const deviceWidth = Math.floor(chart.width * pixelRatio);\n chart.height = deviceHeight / pixelRatio;\n chart.width = deviceWidth / pixelRatio;\n const canvas = chart.canvas;\n if (canvas.style && (forceStyle || (!canvas.style.height && !canvas.style.width))) {\n canvas.style.height = `${chart.height}px`;\n canvas.style.width = `${chart.width}px`;\n }\n if (chart.currentDevicePixelRatio !== pixelRatio\n || canvas.height !== deviceHeight\n || canvas.width !== deviceWidth) {\n chart.currentDevicePixelRatio = pixelRatio;\n canvas.height = deviceHeight;\n canvas.width = deviceWidth;\n chart.ctx.setTransform(pixelRatio, 0, 0, pixelRatio, 0, 0);\n return true;\n }\n return false;\n}\nconst supportsEventListenerOptions = (function() {\n let passiveSupported = false;\n try {\n const options = {\n get passive() {\n passiveSupported = true;\n return false;\n }\n };\n window.addEventListener('test', null, options);\n window.removeEventListener('test', null, options);\n } catch (e) {\n }\n return passiveSupported;\n}());\nfunction readUsedSize(element, property) {\n const value = getStyle(element, property);\n const matches = value && value.match(/^(\\d+)(\\.\\d+)?px$/);\n return matches ? +matches[1] : undefined;\n}\n\nfunction toFontString(font) {\n if (!font || isNullOrUndef(font.size) || isNullOrUndef(font.family)) {\n return null;\n }\n return (font.style ? font.style + ' ' : '')\n\t\t+ (font.weight ? font.weight + ' ' : '')\n\t\t+ font.size + 'px '\n\t\t+ font.family;\n}\nfunction _measureText(ctx, data, gc, longest, string) {\n let textWidth = data[string];\n if (!textWidth) {\n textWidth = data[string] = ctx.measureText(string).width;\n gc.push(string);\n }\n if (textWidth > longest) {\n longest = textWidth;\n }\n return longest;\n}\nfunction _longestText(ctx, font, arrayOfThings, cache) {\n cache = cache || {};\n let data = cache.data = cache.data || {};\n let gc = cache.garbageCollect = cache.garbageCollect || [];\n if (cache.font !== font) {\n data = cache.data = {};\n gc = cache.garbageCollect = [];\n cache.font = font;\n }\n ctx.save();\n ctx.font = font;\n let longest = 0;\n const ilen = arrayOfThings.length;\n let i, j, jlen, thing, nestedThing;\n for (i = 0; i < ilen; i++) {\n thing = arrayOfThings[i];\n if (thing !== undefined && thing !== null && isArray(thing) !== true) {\n longest = _measureText(ctx, data, gc, longest, thing);\n } else if (isArray(thing)) {\n for (j = 0, jlen = thing.length; j < jlen; j++) {\n nestedThing = thing[j];\n if (nestedThing !== undefined && nestedThing !== null && !isArray(nestedThing)) {\n longest = _measureText(ctx, data, gc, longest, nestedThing);\n }\n }\n }\n }\n ctx.restore();\n const gcLen = gc.length / 2;\n if (gcLen > arrayOfThings.length) {\n for (i = 0; i < gcLen; i++) {\n delete data[gc[i]];\n }\n gc.splice(0, gcLen);\n }\n return longest;\n}\nfunction _alignPixel(chart, pixel, width) {\n const devicePixelRatio = chart.currentDevicePixelRatio;\n const halfWidth = width !== 0 ? Math.max(width / 2, 0.5) : 0;\n return Math.round((pixel - halfWidth) * devicePixelRatio) / devicePixelRatio + halfWidth;\n}\nfunction clearCanvas(canvas, ctx) {\n ctx = ctx || canvas.getContext('2d');\n ctx.save();\n ctx.resetTransform();\n ctx.clearRect(0, 0, canvas.width, canvas.height);\n ctx.restore();\n}\nfunction drawPoint(ctx, options, x, y) {\n let type, xOffset, yOffset, size, cornerRadius;\n const style = options.pointStyle;\n const rotation = options.rotation;\n const radius = options.radius;\n let rad = (rotation || 0) * RAD_PER_DEG;\n if (style && typeof style === 'object') {\n type = style.toString();\n if (type === '[object HTMLImageElement]' || type === '[object HTMLCanvasElement]') {\n ctx.save();\n ctx.translate(x, y);\n ctx.rotate(rad);\n ctx.drawImage(style, -style.width / 2, -style.height / 2, style.width, style.height);\n ctx.restore();\n return;\n }\n }\n if (isNaN(radius) || radius <= 0) {\n return;\n }\n ctx.beginPath();\n switch (style) {\n default:\n ctx.arc(x, y, radius, 0, TAU);\n ctx.closePath();\n break;\n case 'triangle':\n ctx.moveTo(x + Math.sin(rad) * radius, y - Math.cos(rad) * radius);\n rad += TWO_THIRDS_PI;\n ctx.lineTo(x + Math.sin(rad) * radius, y - Math.cos(rad) * radius);\n rad += TWO_THIRDS_PI;\n ctx.lineTo(x + Math.sin(rad) * radius, y - Math.cos(rad) * radius);\n ctx.closePath();\n break;\n case 'rectRounded':\n cornerRadius = radius * 0.516;\n size = radius - cornerRadius;\n xOffset = Math.cos(rad + QUARTER_PI) * size;\n yOffset = Math.sin(rad + QUARTER_PI) * size;\n ctx.arc(x - xOffset, y - yOffset, cornerRadius, rad - PI, rad - HALF_PI);\n ctx.arc(x + yOffset, y - xOffset, cornerRadius, rad - HALF_PI, rad);\n ctx.arc(x + xOffset, y + yOffset, cornerRadius, rad, rad + HALF_PI);\n ctx.arc(x - yOffset, y + xOffset, cornerRadius, rad + HALF_PI, rad + PI);\n ctx.closePath();\n break;\n case 'rect':\n if (!rotation) {\n size = Math.SQRT1_2 * radius;\n ctx.rect(x - size, y - size, 2 * size, 2 * size);\n break;\n }\n rad += QUARTER_PI;\n case 'rectRot':\n xOffset = Math.cos(rad) * radius;\n yOffset = Math.sin(rad) * radius;\n ctx.moveTo(x - xOffset, y - yOffset);\n ctx.lineTo(x + yOffset, y - xOffset);\n ctx.lineTo(x + xOffset, y + yOffset);\n ctx.lineTo(x - yOffset, y + xOffset);\n ctx.closePath();\n break;\n case 'crossRot':\n rad += QUARTER_PI;\n case 'cross':\n xOffset = Math.cos(rad) * radius;\n yOffset = Math.sin(rad) * radius;\n ctx.moveTo(x - xOffset, y - yOffset);\n ctx.lineTo(x + xOffset, y + yOffset);\n ctx.moveTo(x + yOffset, y - xOffset);\n ctx.lineTo(x - yOffset, y + xOffset);\n break;\n case 'star':\n xOffset = Math.cos(rad) * radius;\n yOffset = Math.sin(rad) * radius;\n ctx.moveTo(x - xOffset, y - yOffset);\n ctx.lineTo(x + xOffset, y + yOffset);\n ctx.moveTo(x + yOffset, y - xOffset);\n ctx.lineTo(x - yOffset, y + xOffset);\n rad += QUARTER_PI;\n xOffset = Math.cos(rad) * radius;\n yOffset = Math.sin(rad) * radius;\n ctx.moveTo(x - xOffset, y - yOffset);\n ctx.lineTo(x + xOffset, y + yOffset);\n ctx.moveTo(x + yOffset, y - xOffset);\n ctx.lineTo(x - yOffset, y + xOffset);\n break;\n case 'line':\n xOffset = Math.cos(rad) * radius;\n yOffset = Math.sin(rad) * radius;\n ctx.moveTo(x - xOffset, y - yOffset);\n ctx.lineTo(x + xOffset, y + yOffset);\n break;\n case 'dash':\n ctx.moveTo(x, y);\n ctx.lineTo(x + Math.cos(rad) * radius, y + Math.sin(rad) * radius);\n break;\n }\n ctx.fill();\n if (options.borderWidth > 0) {\n ctx.stroke();\n }\n}\nfunction _isPointInArea(point, area, margin) {\n margin = margin || 0.5;\n return !area || (point && point.x > area.left - margin && point.x < area.right + margin &&\n\t\tpoint.y > area.top - margin && point.y < area.bottom + margin);\n}\nfunction clipArea(ctx, area) {\n ctx.save();\n ctx.beginPath();\n ctx.rect(area.left, area.top, area.right - area.left, area.bottom - area.top);\n ctx.clip();\n}\nfunction unclipArea(ctx) {\n ctx.restore();\n}\nfunction _steppedLineTo(ctx, previous, target, flip, mode) {\n if (!previous) {\n return ctx.lineTo(target.x, target.y);\n }\n if (mode === 'middle') {\n const midpoint = (previous.x + target.x) / 2.0;\n ctx.lineTo(midpoint, previous.y);\n ctx.lineTo(midpoint, target.y);\n } else if (mode === 'after' !== !!flip) {\n ctx.lineTo(previous.x, target.y);\n } else {\n ctx.lineTo(target.x, previous.y);\n }\n ctx.lineTo(target.x, target.y);\n}\nfunction _bezierCurveTo(ctx, previous, target, flip) {\n if (!previous) {\n return ctx.lineTo(target.x, target.y);\n }\n ctx.bezierCurveTo(\n flip ? previous.cp1x : previous.cp2x,\n flip ? previous.cp1y : previous.cp2y,\n flip ? target.cp2x : target.cp1x,\n flip ? target.cp2y : target.cp1y,\n target.x,\n target.y);\n}\nfunction renderText(ctx, text, x, y, font, opts = {}) {\n const lines = isArray(text) ? text : [text];\n const stroke = opts.strokeWidth > 0 && opts.strokeColor !== '';\n let i, line;\n ctx.save();\n ctx.font = font.string;\n setRenderOpts(ctx, opts);\n for (i = 0; i < lines.length; ++i) {\n line = lines[i];\n if (stroke) {\n if (opts.strokeColor) {\n ctx.strokeStyle = opts.strokeColor;\n }\n if (!isNullOrUndef(opts.strokeWidth)) {\n ctx.lineWidth = opts.strokeWidth;\n }\n ctx.strokeText(line, x, y, opts.maxWidth);\n }\n ctx.fillText(line, x, y, opts.maxWidth);\n decorateText(ctx, x, y, line, opts);\n y += font.lineHeight;\n }\n ctx.restore();\n}\nfunction setRenderOpts(ctx, opts) {\n if (opts.translation) {\n ctx.translate(opts.translation[0], opts.translation[1]);\n }\n if (!isNullOrUndef(opts.rotation)) {\n ctx.rotate(opts.rotation);\n }\n if (opts.color) {\n ctx.fillStyle = opts.color;\n }\n if (opts.textAlign) {\n ctx.textAlign = opts.textAlign;\n }\n if (opts.textBaseline) {\n ctx.textBaseline = opts.textBaseline;\n }\n}\nfunction decorateText(ctx, x, y, line, opts) {\n if (opts.strikethrough || opts.underline) {\n const metrics = ctx.measureText(line);\n const left = x - metrics.actualBoundingBoxLeft;\n const right = x + metrics.actualBoundingBoxRight;\n const top = y - metrics.actualBoundingBoxAscent;\n const bottom = y + metrics.actualBoundingBoxDescent;\n const yDecoration = opts.strikethrough ? (top + bottom) / 2 : bottom;\n ctx.strokeStyle = ctx.fillStyle;\n ctx.beginPath();\n ctx.lineWidth = opts.decorationWidth || 2;\n ctx.moveTo(left, yDecoration);\n ctx.lineTo(right, yDecoration);\n ctx.stroke();\n }\n}\nfunction addRoundedRectPath(ctx, rect) {\n const {x, y, w, h, radius} = rect;\n ctx.arc(x + radius.topLeft, y + radius.topLeft, radius.topLeft, -HALF_PI, PI, true);\n ctx.lineTo(x, y + h - radius.bottomLeft);\n ctx.arc(x + radius.bottomLeft, y + h - radius.bottomLeft, radius.bottomLeft, PI, HALF_PI, true);\n ctx.lineTo(x + w - radius.bottomRight, y + h);\n ctx.arc(x + w - radius.bottomRight, y + h - radius.bottomRight, radius.bottomRight, HALF_PI, 0, true);\n ctx.lineTo(x + w, y + radius.topRight);\n ctx.arc(x + w - radius.topRight, y + radius.topRight, radius.topRight, 0, -HALF_PI, true);\n ctx.lineTo(x + radius.topLeft, y);\n}\n\nfunction _createResolver(scopes, prefixes = [''], rootScopes = scopes, fallback, getTarget = () => scopes[0]) {\n if (!defined(fallback)) {\n fallback = _resolve('_fallback', scopes);\n }\n const cache = {\n [Symbol.toStringTag]: 'Object',\n _cacheable: true,\n _scopes: scopes,\n _rootScopes: rootScopes,\n _fallback: fallback,\n _getTarget: getTarget,\n override: (scope) => _createResolver([scope, ...scopes], prefixes, rootScopes, fallback),\n };\n return new Proxy(cache, {\n deleteProperty(target, prop) {\n delete target[prop];\n delete target._keys;\n delete scopes[0][prop];\n return true;\n },\n get(target, prop) {\n return _cached(target, prop,\n () => _resolveWithPrefixes(prop, prefixes, scopes, target));\n },\n getOwnPropertyDescriptor(target, prop) {\n return Reflect.getOwnPropertyDescriptor(target._scopes[0], prop);\n },\n getPrototypeOf() {\n return Reflect.getPrototypeOf(scopes[0]);\n },\n has(target, prop) {\n return getKeysFromAllScopes(target).includes(prop);\n },\n ownKeys(target) {\n return getKeysFromAllScopes(target);\n },\n set(target, prop, value) {\n const storage = target._storage || (target._storage = getTarget());\n target[prop] = storage[prop] = value;\n delete target._keys;\n return true;\n }\n });\n}\nfunction _attachContext(proxy, context, subProxy, descriptorDefaults) {\n const cache = {\n _cacheable: false,\n _proxy: proxy,\n _context: context,\n _subProxy: subProxy,\n _stack: new Set(),\n _descriptors: _descriptors(proxy, descriptorDefaults),\n setContext: (ctx) => _attachContext(proxy, ctx, subProxy, descriptorDefaults),\n override: (scope) => _attachContext(proxy.override(scope), context, subProxy, descriptorDefaults)\n };\n return new Proxy(cache, {\n deleteProperty(target, prop) {\n delete target[prop];\n delete proxy[prop];\n return true;\n },\n get(target, prop, receiver) {\n return _cached(target, prop,\n () => _resolveWithContext(target, prop, receiver));\n },\n getOwnPropertyDescriptor(target, prop) {\n return target._descriptors.allKeys\n ? Reflect.has(proxy, prop) ? {enumerable: true, configurable: true} : undefined\n : Reflect.getOwnPropertyDescriptor(proxy, prop);\n },\n getPrototypeOf() {\n return Reflect.getPrototypeOf(proxy);\n },\n has(target, prop) {\n return Reflect.has(proxy, prop);\n },\n ownKeys() {\n return Reflect.ownKeys(proxy);\n },\n set(target, prop, value) {\n proxy[prop] = value;\n delete target[prop];\n return true;\n }\n });\n}\nfunction _descriptors(proxy, defaults = {scriptable: true, indexable: true}) {\n const {_scriptable = defaults.scriptable, _indexable = defaults.indexable, _allKeys = defaults.allKeys} = proxy;\n return {\n allKeys: _allKeys,\n scriptable: _scriptable,\n indexable: _indexable,\n isScriptable: isFunction(_scriptable) ? _scriptable : () => _scriptable,\n isIndexable: isFunction(_indexable) ? _indexable : () => _indexable\n };\n}\nconst readKey = (prefix, name) => prefix ? prefix + _capitalize(name) : name;\nconst needsSubResolver = (prop, value) => isObject(value) && prop !== 'adapters' &&\n (Object.getPrototypeOf(value) === null || value.constructor === Object);\nfunction _cached(target, prop, resolve) {\n if (Object.prototype.hasOwnProperty.call(target, prop)) {\n return target[prop];\n }\n const value = resolve();\n target[prop] = value;\n return value;\n}\nfunction _resolveWithContext(target, prop, receiver) {\n const {_proxy, _context, _subProxy, _descriptors: descriptors} = target;\n let value = _proxy[prop];\n if (isFunction(value) && descriptors.isScriptable(prop)) {\n value = _resolveScriptable(prop, value, target, receiver);\n }\n if (isArray(value) && value.length) {\n value = _resolveArray(prop, value, target, descriptors.isIndexable);\n }\n if (needsSubResolver(prop, value)) {\n value = _attachContext(value, _context, _subProxy && _subProxy[prop], descriptors);\n }\n return value;\n}\nfunction _resolveScriptable(prop, value, target, receiver) {\n const {_proxy, _context, _subProxy, _stack} = target;\n if (_stack.has(prop)) {\n throw new Error('Recursion detected: ' + Array.from(_stack).join('->') + '->' + prop);\n }\n _stack.add(prop);\n value = value(_context, _subProxy || receiver);\n _stack.delete(prop);\n if (needsSubResolver(prop, value)) {\n value = createSubResolver(_proxy._scopes, _proxy, prop, value);\n }\n return value;\n}\nfunction _resolveArray(prop, value, target, isIndexable) {\n const {_proxy, _context, _subProxy, _descriptors: descriptors} = target;\n if (defined(_context.index) && isIndexable(prop)) {\n value = value[_context.index % value.length];\n } else if (isObject(value[0])) {\n const arr = value;\n const scopes = _proxy._scopes.filter(s => s !== arr);\n value = [];\n for (const item of arr) {\n const resolver = createSubResolver(scopes, _proxy, prop, item);\n value.push(_attachContext(resolver, _context, _subProxy && _subProxy[prop], descriptors));\n }\n }\n return value;\n}\nfunction resolveFallback(fallback, prop, value) {\n return isFunction(fallback) ? fallback(prop, value) : fallback;\n}\nconst getScope = (key, parent) => key === true ? parent\n : typeof key === 'string' ? resolveObjectKey(parent, key) : undefined;\nfunction addScopes(set, parentScopes, key, parentFallback, value) {\n for (const parent of parentScopes) {\n const scope = getScope(key, parent);\n if (scope) {\n set.add(scope);\n const fallback = resolveFallback(scope._fallback, key, value);\n if (defined(fallback) && fallback !== key && fallback !== parentFallback) {\n return fallback;\n }\n } else if (scope === false && defined(parentFallback) && key !== parentFallback) {\n return null;\n }\n }\n return false;\n}\nfunction createSubResolver(parentScopes, resolver, prop, value) {\n const rootScopes = resolver._rootScopes;\n const fallback = resolveFallback(resolver._fallback, prop, value);\n const allScopes = [...parentScopes, ...rootScopes];\n const set = new Set();\n set.add(value);\n let key = addScopesFromKey(set, allScopes, prop, fallback || prop, value);\n if (key === null) {\n return false;\n }\n if (defined(fallback) && fallback !== prop) {\n key = addScopesFromKey(set, allScopes, fallback, key, value);\n if (key === null) {\n return false;\n }\n }\n return _createResolver(Array.from(set), [''], rootScopes, fallback,\n () => subGetTarget(resolver, prop, value));\n}\nfunction addScopesFromKey(set, allScopes, key, fallback, item) {\n while (key) {\n key = addScopes(set, allScopes, key, fallback, item);\n }\n return key;\n}\nfunction subGetTarget(resolver, prop, value) {\n const parent = resolver._getTarget();\n if (!(prop in parent)) {\n parent[prop] = {};\n }\n const target = parent[prop];\n if (isArray(target) && isObject(value)) {\n return value;\n }\n return target;\n}\nfunction _resolveWithPrefixes(prop, prefixes, scopes, proxy) {\n let value;\n for (const prefix of prefixes) {\n value = _resolve(readKey(prefix, prop), scopes);\n if (defined(value)) {\n return needsSubResolver(prop, value)\n ? createSubResolver(scopes, proxy, prop, value)\n : value;\n }\n }\n}\nfunction _resolve(key, scopes) {\n for (const scope of scopes) {\n if (!scope) {\n continue;\n }\n const value = scope[key];\n if (defined(value)) {\n return value;\n }\n }\n}\nfunction getKeysFromAllScopes(target) {\n let keys = target._keys;\n if (!keys) {\n keys = target._keys = resolveKeysFromAllScopes(target._scopes);\n }\n return keys;\n}\nfunction resolveKeysFromAllScopes(scopes) {\n const set = new Set();\n for (const scope of scopes) {\n for (const key of Object.keys(scope).filter(k => !k.startsWith('_'))) {\n set.add(key);\n }\n }\n return Array.from(set);\n}\nfunction _parseObjectDataRadialScale(meta, data, start, count) {\n const {iScale} = meta;\n const {key = 'r'} = this._parsing;\n const parsed = new Array(count);\n let i, ilen, index, item;\n for (i = 0, ilen = count; i < ilen; ++i) {\n index = i + start;\n item = data[index];\n parsed[i] = {\n r: iScale.parse(resolveObjectKey(item, key), index)\n };\n }\n return parsed;\n}\n\nconst EPSILON = Number.EPSILON || 1e-14;\nconst getPoint = (points, i) => i < points.length && !points[i].skip && points[i];\nconst getValueAxis = (indexAxis) => indexAxis === 'x' ? 'y' : 'x';\nfunction splineCurve(firstPoint, middlePoint, afterPoint, t) {\n const previous = firstPoint.skip ? middlePoint : firstPoint;\n const current = middlePoint;\n const next = afterPoint.skip ? middlePoint : afterPoint;\n const d01 = distanceBetweenPoints(current, previous);\n const d12 = distanceBetweenPoints(next, current);\n let s01 = d01 / (d01 + d12);\n let s12 = d12 / (d01 + d12);\n s01 = isNaN(s01) ? 0 : s01;\n s12 = isNaN(s12) ? 0 : s12;\n const fa = t * s01;\n const fb = t * s12;\n return {\n previous: {\n x: current.x - fa * (next.x - previous.x),\n y: current.y - fa * (next.y - previous.y)\n },\n next: {\n x: current.x + fb * (next.x - previous.x),\n y: current.y + fb * (next.y - previous.y)\n }\n };\n}\nfunction monotoneAdjust(points, deltaK, mK) {\n const pointsLen = points.length;\n let alphaK, betaK, tauK, squaredMagnitude, pointCurrent;\n let pointAfter = getPoint(points, 0);\n for (let i = 0; i < pointsLen - 1; ++i) {\n pointCurrent = pointAfter;\n pointAfter = getPoint(points, i + 1);\n if (!pointCurrent || !pointAfter) {\n continue;\n }\n if (almostEquals(deltaK[i], 0, EPSILON)) {\n mK[i] = mK[i + 1] = 0;\n continue;\n }\n alphaK = mK[i] / deltaK[i];\n betaK = mK[i + 1] / deltaK[i];\n squaredMagnitude = Math.pow(alphaK, 2) + Math.pow(betaK, 2);\n if (squaredMagnitude <= 9) {\n continue;\n }\n tauK = 3 / Math.sqrt(squaredMagnitude);\n mK[i] = alphaK * tauK * deltaK[i];\n mK[i + 1] = betaK * tauK * deltaK[i];\n }\n}\nfunction monotoneCompute(points, mK, indexAxis = 'x') {\n const valueAxis = getValueAxis(indexAxis);\n const pointsLen = points.length;\n let delta, pointBefore, pointCurrent;\n let pointAfter = getPoint(points, 0);\n for (let i = 0; i < pointsLen; ++i) {\n pointBefore = pointCurrent;\n pointCurrent = pointAfter;\n pointAfter = getPoint(points, i + 1);\n if (!pointCurrent) {\n continue;\n }\n const iPixel = pointCurrent[indexAxis];\n const vPixel = pointCurrent[valueAxis];\n if (pointBefore) {\n delta = (iPixel - pointBefore[indexAxis]) / 3;\n pointCurrent[`cp1${indexAxis}`] = iPixel - delta;\n pointCurrent[`cp1${valueAxis}`] = vPixel - delta * mK[i];\n }\n if (pointAfter) {\n delta = (pointAfter[indexAxis] - iPixel) / 3;\n pointCurrent[`cp2${indexAxis}`] = iPixel + delta;\n pointCurrent[`cp2${valueAxis}`] = vPixel + delta * mK[i];\n }\n }\n}\nfunction splineCurveMonotone(points, indexAxis = 'x') {\n const valueAxis = getValueAxis(indexAxis);\n const pointsLen = points.length;\n const deltaK = Array(pointsLen).fill(0);\n const mK = Array(pointsLen);\n let i, pointBefore, pointCurrent;\n let pointAfter = getPoint(points, 0);\n for (i = 0; i < pointsLen; ++i) {\n pointBefore = pointCurrent;\n pointCurrent = pointAfter;\n pointAfter = getPoint(points, i + 1);\n if (!pointCurrent) {\n continue;\n }\n if (pointAfter) {\n const slopeDelta = pointAfter[indexAxis] - pointCurrent[indexAxis];\n deltaK[i] = slopeDelta !== 0 ? (pointAfter[valueAxis] - pointCurrent[valueAxis]) / slopeDelta : 0;\n }\n mK[i] = !pointBefore ? deltaK[i]\n : !pointAfter ? deltaK[i - 1]\n : (sign(deltaK[i - 1]) !== sign(deltaK[i])) ? 0\n : (deltaK[i - 1] + deltaK[i]) / 2;\n }\n monotoneAdjust(points, deltaK, mK);\n monotoneCompute(points, mK, indexAxis);\n}\nfunction capControlPoint(pt, min, max) {\n return Math.max(Math.min(pt, max), min);\n}\nfunction capBezierPoints(points, area) {\n let i, ilen, point, inArea, inAreaPrev;\n let inAreaNext = _isPointInArea(points[0], area);\n for (i = 0, ilen = points.length; i < ilen; ++i) {\n inAreaPrev = inArea;\n inArea = inAreaNext;\n inAreaNext = i < ilen - 1 && _isPointInArea(points[i + 1], area);\n if (!inArea) {\n continue;\n }\n point = points[i];\n if (inAreaPrev) {\n point.cp1x = capControlPoint(point.cp1x, area.left, area.right);\n point.cp1y = capControlPoint(point.cp1y, area.top, area.bottom);\n }\n if (inAreaNext) {\n point.cp2x = capControlPoint(point.cp2x, area.left, area.right);\n point.cp2y = capControlPoint(point.cp2y, area.top, area.bottom);\n }\n }\n}\nfunction _updateBezierControlPoints(points, options, area, loop, indexAxis) {\n let i, ilen, point, controlPoints;\n if (options.spanGaps) {\n points = points.filter((pt) => !pt.skip);\n }\n if (options.cubicInterpolationMode === 'monotone') {\n splineCurveMonotone(points, indexAxis);\n } else {\n let prev = loop ? points[points.length - 1] : points[0];\n for (i = 0, ilen = points.length; i < ilen; ++i) {\n point = points[i];\n controlPoints = splineCurve(\n prev,\n point,\n points[Math.min(i + 1, ilen - (loop ? 0 : 1)) % ilen],\n options.tension\n );\n point.cp1x = controlPoints.previous.x;\n point.cp1y = controlPoints.previous.y;\n point.cp2x = controlPoints.next.x;\n point.cp2y = controlPoints.next.y;\n prev = point;\n }\n }\n if (options.capBezierPoints) {\n capBezierPoints(points, area);\n }\n}\n\nconst atEdge = (t) => t === 0 || t === 1;\nconst elasticIn = (t, s, p) => -(Math.pow(2, 10 * (t -= 1)) * Math.sin((t - s) * TAU / p));\nconst elasticOut = (t, s, p) => Math.pow(2, -10 * t) * Math.sin((t - s) * TAU / p) + 1;\nconst effects = {\n linear: t => t,\n easeInQuad: t => t * t,\n easeOutQuad: t => -t * (t - 2),\n easeInOutQuad: t => ((t /= 0.5) < 1)\n ? 0.5 * t * t\n : -0.5 * ((--t) * (t - 2) - 1),\n easeInCubic: t => t * t * t,\n easeOutCubic: t => (t -= 1) * t * t + 1,\n easeInOutCubic: t => ((t /= 0.5) < 1)\n ? 0.5 * t * t * t\n : 0.5 * ((t -= 2) * t * t + 2),\n easeInQuart: t => t * t * t * t,\n easeOutQuart: t => -((t -= 1) * t * t * t - 1),\n easeInOutQuart: t => ((t /= 0.5) < 1)\n ? 0.5 * t * t * t * t\n : -0.5 * ((t -= 2) * t * t * t - 2),\n easeInQuint: t => t * t * t * t * t,\n easeOutQuint: t => (t -= 1) * t * t * t * t + 1,\n easeInOutQuint: t => ((t /= 0.5) < 1)\n ? 0.5 * t * t * t * t * t\n : 0.5 * ((t -= 2) * t * t * t * t + 2),\n easeInSine: t => -Math.cos(t * HALF_PI) + 1,\n easeOutSine: t => Math.sin(t * HALF_PI),\n easeInOutSine: t => -0.5 * (Math.cos(PI * t) - 1),\n easeInExpo: t => (t === 0) ? 0 : Math.pow(2, 10 * (t - 1)),\n easeOutExpo: t => (t === 1) ? 1 : -Math.pow(2, -10 * t) + 1,\n easeInOutExpo: t => atEdge(t) ? t : t < 0.5\n ? 0.5 * Math.pow(2, 10 * (t * 2 - 1))\n : 0.5 * (-Math.pow(2, -10 * (t * 2 - 1)) + 2),\n easeInCirc: t => (t >= 1) ? t : -(Math.sqrt(1 - t * t) - 1),\n easeOutCirc: t => Math.sqrt(1 - (t -= 1) * t),\n easeInOutCirc: t => ((t /= 0.5) < 1)\n ? -0.5 * (Math.sqrt(1 - t * t) - 1)\n : 0.5 * (Math.sqrt(1 - (t -= 2) * t) + 1),\n easeInElastic: t => atEdge(t) ? t : elasticIn(t, 0.075, 0.3),\n easeOutElastic: t => atEdge(t) ? t : elasticOut(t, 0.075, 0.3),\n easeInOutElastic(t) {\n const s = 0.1125;\n const p = 0.45;\n return atEdge(t) ? t :\n t < 0.5\n ? 0.5 * elasticIn(t * 2, s, p)\n : 0.5 + 0.5 * elasticOut(t * 2 - 1, s, p);\n },\n easeInBack(t) {\n const s = 1.70158;\n return t * t * ((s + 1) * t - s);\n },\n easeOutBack(t) {\n const s = 1.70158;\n return (t -= 1) * t * ((s + 1) * t + s) + 1;\n },\n easeInOutBack(t) {\n let s = 1.70158;\n if ((t /= 0.5) < 1) {\n return 0.5 * (t * t * (((s *= (1.525)) + 1) * t - s));\n }\n return 0.5 * ((t -= 2) * t * (((s *= (1.525)) + 1) * t + s) + 2);\n },\n easeInBounce: t => 1 - effects.easeOutBounce(1 - t),\n easeOutBounce(t) {\n const m = 7.5625;\n const d = 2.75;\n if (t < (1 / d)) {\n return m * t * t;\n }\n if (t < (2 / d)) {\n return m * (t -= (1.5 / d)) * t + 0.75;\n }\n if (t < (2.5 / d)) {\n return m * (t -= (2.25 / d)) * t + 0.9375;\n }\n return m * (t -= (2.625 / d)) * t + 0.984375;\n },\n easeInOutBounce: t => (t < 0.5)\n ? effects.easeInBounce(t * 2) * 0.5\n : effects.easeOutBounce(t * 2 - 1) * 0.5 + 0.5,\n};\n\nfunction _pointInLine(p1, p2, t, mode) {\n return {\n x: p1.x + t * (p2.x - p1.x),\n y: p1.y + t * (p2.y - p1.y)\n };\n}\nfunction _steppedInterpolation(p1, p2, t, mode) {\n return {\n x: p1.x + t * (p2.x - p1.x),\n y: mode === 'middle' ? t < 0.5 ? p1.y : p2.y\n : mode === 'after' ? t < 1 ? p1.y : p2.y\n : t > 0 ? p2.y : p1.y\n };\n}\nfunction _bezierInterpolation(p1, p2, t, mode) {\n const cp1 = {x: p1.cp2x, y: p1.cp2y};\n const cp2 = {x: p2.cp1x, y: p2.cp1y};\n const a = _pointInLine(p1, cp1, t);\n const b = _pointInLine(cp1, cp2, t);\n const c = _pointInLine(cp2, p2, t);\n const d = _pointInLine(a, b, t);\n const e = _pointInLine(b, c, t);\n return _pointInLine(d, e, t);\n}\n\nconst intlCache = new Map();\nfunction getNumberFormat(locale, options) {\n options = options || {};\n const cacheKey = locale + JSON.stringify(options);\n let formatter = intlCache.get(cacheKey);\n if (!formatter) {\n formatter = new Intl.NumberFormat(locale, options);\n intlCache.set(cacheKey, formatter);\n }\n return formatter;\n}\nfunction formatNumber(num, locale, options) {\n return getNumberFormat(locale, options).format(num);\n}\n\nconst LINE_HEIGHT = new RegExp(/^(normal|(\\d+(?:\\.\\d+)?)(px|em|%)?)$/);\nconst FONT_STYLE = new RegExp(/^(normal|italic|initial|inherit|unset|(oblique( -?[0-9]?[0-9]deg)?))$/);\nfunction toLineHeight(value, size) {\n const matches = ('' + value).match(LINE_HEIGHT);\n if (!matches || matches[1] === 'normal') {\n return size * 1.2;\n }\n value = +matches[2];\n switch (matches[3]) {\n case 'px':\n return value;\n case '%':\n value /= 100;\n break;\n }\n return size * value;\n}\nconst numberOrZero = v => +v || 0;\nfunction _readValueToProps(value, props) {\n const ret = {};\n const objProps = isObject(props);\n const keys = objProps ? Object.keys(props) : props;\n const read = isObject(value)\n ? objProps\n ? prop => valueOrDefault(value[prop], value[props[prop]])\n : prop => value[prop]\n : () => value;\n for (const prop of keys) {\n ret[prop] = numberOrZero(read(prop));\n }\n return ret;\n}\nfunction toTRBL(value) {\n return _readValueToProps(value, {top: 'y', right: 'x', bottom: 'y', left: 'x'});\n}\nfunction toTRBLCorners(value) {\n return _readValueToProps(value, ['topLeft', 'topRight', 'bottomLeft', 'bottomRight']);\n}\nfunction toPadding(value) {\n const obj = toTRBL(value);\n obj.width = obj.left + obj.right;\n obj.height = obj.top + obj.bottom;\n return obj;\n}\nfunction toFont(options, fallback) {\n options = options || {};\n fallback = fallback || defaults.font;\n let size = valueOrDefault(options.size, fallback.size);\n if (typeof size === 'string') {\n size = parseInt(size, 10);\n }\n let style = valueOrDefault(options.style, fallback.style);\n if (style && !('' + style).match(FONT_STYLE)) {\n console.warn('Invalid font style specified: \"' + style + '\"');\n style = '';\n }\n const font = {\n family: valueOrDefault(options.family, fallback.family),\n lineHeight: toLineHeight(valueOrDefault(options.lineHeight, fallback.lineHeight), size),\n size,\n style,\n weight: valueOrDefault(options.weight, fallback.weight),\n string: ''\n };\n font.string = toFontString(font);\n return font;\n}\nfunction resolve(inputs, context, index, info) {\n let cacheable = true;\n let i, ilen, value;\n for (i = 0, ilen = inputs.length; i < ilen; ++i) {\n value = inputs[i];\n if (value === undefined) {\n continue;\n }\n if (context !== undefined && typeof value === 'function') {\n value = value(context);\n cacheable = false;\n }\n if (index !== undefined && isArray(value)) {\n value = value[index % value.length];\n cacheable = false;\n }\n if (value !== undefined) {\n if (info && !cacheable) {\n info.cacheable = false;\n }\n return value;\n }\n }\n}\nfunction _addGrace(minmax, grace, beginAtZero) {\n const {min, max} = minmax;\n const change = toDimension(grace, (max - min) / 2);\n const keepZero = (value, add) => beginAtZero && value === 0 ? 0 : value + add;\n return {\n min: keepZero(min, -Math.abs(change)),\n max: keepZero(max, change)\n };\n}\nfunction createContext(parentContext, context) {\n return Object.assign(Object.create(parentContext), context);\n}\n\nconst getRightToLeftAdapter = function(rectX, width) {\n return {\n x(x) {\n return rectX + rectX + width - x;\n },\n setWidth(w) {\n width = w;\n },\n textAlign(align) {\n if (align === 'center') {\n return align;\n }\n return align === 'right' ? 'left' : 'right';\n },\n xPlus(x, value) {\n return x - value;\n },\n leftForLtr(x, itemWidth) {\n return x - itemWidth;\n },\n };\n};\nconst getLeftToRightAdapter = function() {\n return {\n x(x) {\n return x;\n },\n setWidth(w) {\n },\n textAlign(align) {\n return align;\n },\n xPlus(x, value) {\n return x + value;\n },\n leftForLtr(x, _itemWidth) {\n return x;\n },\n };\n};\nfunction getRtlAdapter(rtl, rectX, width) {\n return rtl ? getRightToLeftAdapter(rectX, width) : getLeftToRightAdapter();\n}\nfunction overrideTextDirection(ctx, direction) {\n let style, original;\n if (direction === 'ltr' || direction === 'rtl') {\n style = ctx.canvas.style;\n original = [\n style.getPropertyValue('direction'),\n style.getPropertyPriority('direction'),\n ];\n style.setProperty('direction', direction, 'important');\n ctx.prevTextDirection = original;\n }\n}\nfunction restoreTextDirection(ctx, original) {\n if (original !== undefined) {\n delete ctx.prevTextDirection;\n ctx.canvas.style.setProperty('direction', original[0], original[1]);\n }\n}\n\nfunction propertyFn(property) {\n if (property === 'angle') {\n return {\n between: _angleBetween,\n compare: _angleDiff,\n normalize: _normalizeAngle,\n };\n }\n return {\n between: _isBetween,\n compare: (a, b) => a - b,\n normalize: x => x\n };\n}\nfunction normalizeSegment({start, end, count, loop, style}) {\n return {\n start: start % count,\n end: end % count,\n loop: loop && (end - start + 1) % count === 0,\n style\n };\n}\nfunction getSegment(segment, points, bounds) {\n const {property, start: startBound, end: endBound} = bounds;\n const {between, normalize} = propertyFn(property);\n const count = points.length;\n let {start, end, loop} = segment;\n let i, ilen;\n if (loop) {\n start += count;\n end += count;\n for (i = 0, ilen = count; i < ilen; ++i) {\n if (!between(normalize(points[start % count][property]), startBound, endBound)) {\n break;\n }\n start--;\n end--;\n }\n start %= count;\n end %= count;\n }\n if (end < start) {\n end += count;\n }\n return {start, end, loop, style: segment.style};\n}\nfunction _boundSegment(segment, points, bounds) {\n if (!bounds) {\n return [segment];\n }\n const {property, start: startBound, end: endBound} = bounds;\n const count = points.length;\n const {compare, between, normalize} = propertyFn(property);\n const {start, end, loop, style} = getSegment(segment, points, bounds);\n const result = [];\n let inside = false;\n let subStart = null;\n let value, point, prevValue;\n const startIsBefore = () => between(startBound, prevValue, value) && compare(startBound, prevValue) !== 0;\n const endIsBefore = () => compare(endBound, value) === 0 || between(endBound, prevValue, value);\n const shouldStart = () => inside || startIsBefore();\n const shouldStop = () => !inside || endIsBefore();\n for (let i = start, prev = start; i <= end; ++i) {\n point = points[i % count];\n if (point.skip) {\n continue;\n }\n value = normalize(point[property]);\n if (value === prevValue) {\n continue;\n }\n inside = between(value, startBound, endBound);\n if (subStart === null && shouldStart()) {\n subStart = compare(value, startBound) === 0 ? i : prev;\n }\n if (subStart !== null && shouldStop()) {\n result.push(normalizeSegment({start: subStart, end: i, loop, count, style}));\n subStart = null;\n }\n prev = i;\n prevValue = value;\n }\n if (subStart !== null) {\n result.push(normalizeSegment({start: subStart, end, loop, count, style}));\n }\n return result;\n}\nfunction _boundSegments(line, bounds) {\n const result = [];\n const segments = line.segments;\n for (let i = 0; i < segments.length; i++) {\n const sub = _boundSegment(segments[i], line.points, bounds);\n if (sub.length) {\n result.push(...sub);\n }\n }\n return result;\n}\nfunction findStartAndEnd(points, count, loop, spanGaps) {\n let start = 0;\n let end = count - 1;\n if (loop && !spanGaps) {\n while (start < count && !points[start].skip) {\n start++;\n }\n }\n while (start < count && points[start].skip) {\n start++;\n }\n start %= count;\n if (loop) {\n end += start;\n }\n while (end > start && points[end % count].skip) {\n end--;\n }\n end %= count;\n return {start, end};\n}\nfunction solidSegments(points, start, max, loop) {\n const count = points.length;\n const result = [];\n let last = start;\n let prev = points[start];\n let end;\n for (end = start + 1; end <= max; ++end) {\n const cur = points[end % count];\n if (cur.skip || cur.stop) {\n if (!prev.skip) {\n loop = false;\n result.push({start: start % count, end: (end - 1) % count, loop});\n start = last = cur.stop ? end : null;\n }\n } else {\n last = end;\n if (prev.skip) {\n start = end;\n }\n }\n prev = cur;\n }\n if (last !== null) {\n result.push({start: start % count, end: last % count, loop});\n }\n return result;\n}\nfunction _computeSegments(line, segmentOptions) {\n const points = line.points;\n const spanGaps = line.options.spanGaps;\n const count = points.length;\n if (!count) {\n return [];\n }\n const loop = !!line._loop;\n const {start, end} = findStartAndEnd(points, count, loop, spanGaps);\n if (spanGaps === true) {\n return splitByStyles(line, [{start, end, loop}], points, segmentOptions);\n }\n const max = end < start ? end + count : end;\n const completeLoop = !!line._fullLoop && start === 0 && end === count - 1;\n return splitByStyles(line, solidSegments(points, start, max, completeLoop), points, segmentOptions);\n}\nfunction splitByStyles(line, segments, points, segmentOptions) {\n if (!segmentOptions || !segmentOptions.setContext || !points) {\n return segments;\n }\n return doSplitByStyles(line, segments, points, segmentOptions);\n}\nfunction doSplitByStyles(line, segments, points, segmentOptions) {\n const chartContext = line._chart.getContext();\n const baseStyle = readStyle(line.options);\n const {_datasetIndex: datasetIndex, options: {spanGaps}} = line;\n const count = points.length;\n const result = [];\n let prevStyle = baseStyle;\n let start = segments[0].start;\n let i = start;\n function addStyle(s, e, l, st) {\n const dir = spanGaps ? -1 : 1;\n if (s === e) {\n return;\n }\n s += count;\n while (points[s % count].skip) {\n s -= dir;\n }\n while (points[e % count].skip) {\n e += dir;\n }\n if (s % count !== e % count) {\n result.push({start: s % count, end: e % count, loop: l, style: st});\n prevStyle = st;\n start = e % count;\n }\n }\n for (const segment of segments) {\n start = spanGaps ? start : segment.start;\n let prev = points[start % count];\n let style;\n for (i = start + 1; i <= segment.end; i++) {\n const pt = points[i % count];\n style = readStyle(segmentOptions.setContext(createContext(chartContext, {\n type: 'segment',\n p0: prev,\n p1: pt,\n p0DataIndex: (i - 1) % count,\n p1DataIndex: i % count,\n datasetIndex\n })));\n if (styleChanged(style, prevStyle)) {\n addStyle(start, i - 1, segment.loop, prevStyle);\n }\n prev = pt;\n prevStyle = style;\n }\n if (start < i - 1) {\n addStyle(start, i - 1, segment.loop, prevStyle);\n }\n }\n return result;\n}\nfunction readStyle(options) {\n return {\n backgroundColor: options.backgroundColor,\n borderCapStyle: options.borderCapStyle,\n borderDash: options.borderDash,\n borderDashOffset: options.borderDashOffset,\n borderJoinStyle: options.borderJoinStyle,\n borderWidth: options.borderWidth,\n borderColor: options.borderColor\n };\n}\nfunction styleChanged(style, prevStyle) {\n return prevStyle && JSON.stringify(style) !== JSON.stringify(prevStyle);\n}\n\nvar helpers = /*#__PURE__*/Object.freeze({\n__proto__: null,\neasingEffects: effects,\nisPatternOrGradient: isPatternOrGradient,\ncolor: color,\ngetHoverColor: getHoverColor,\nnoop: noop,\nuid: uid,\nisNullOrUndef: isNullOrUndef,\nisArray: isArray,\nisObject: isObject,\nisFinite: isNumberFinite,\nfiniteOrDefault: finiteOrDefault,\nvalueOrDefault: valueOrDefault,\ntoPercentage: toPercentage,\ntoDimension: toDimension,\ncallback: callback,\neach: each,\n_elementsEqual: _elementsEqual,\nclone: clone,\n_merger: _merger,\nmerge: merge,\nmergeIf: mergeIf,\n_mergerIf: _mergerIf,\n_deprecated: _deprecated,\nresolveObjectKey: resolveObjectKey,\n_capitalize: _capitalize,\ndefined: defined,\nisFunction: isFunction,\nsetsEqual: setsEqual,\n_isClickEvent: _isClickEvent,\ntoFontString: toFontString,\n_measureText: _measureText,\n_longestText: _longestText,\n_alignPixel: _alignPixel,\nclearCanvas: clearCanvas,\ndrawPoint: drawPoint,\n_isPointInArea: _isPointInArea,\nclipArea: clipArea,\nunclipArea: unclipArea,\n_steppedLineTo: _steppedLineTo,\n_bezierCurveTo: _bezierCurveTo,\nrenderText: renderText,\naddRoundedRectPath: addRoundedRectPath,\n_lookup: _lookup,\n_lookupByKey: _lookupByKey,\n_rlookupByKey: _rlookupByKey,\n_filterBetween: _filterBetween,\nlistenArrayEvents: listenArrayEvents,\nunlistenArrayEvents: unlistenArrayEvents,\n_arrayUnique: _arrayUnique,\n_createResolver: _createResolver,\n_attachContext: _attachContext,\n_descriptors: _descriptors,\n_parseObjectDataRadialScale: _parseObjectDataRadialScale,\nsplineCurve: splineCurve,\nsplineCurveMonotone: splineCurveMonotone,\n_updateBezierControlPoints: _updateBezierControlPoints,\n_isDomSupported: _isDomSupported,\n_getParentNode: _getParentNode,\ngetStyle: getStyle,\ngetRelativePosition: getRelativePosition,\ngetMaximumSize: getMaximumSize,\nretinaScale: retinaScale,\nsupportsEventListenerOptions: supportsEventListenerOptions,\nreadUsedSize: readUsedSize,\nfontString: fontString,\nrequestAnimFrame: requestAnimFrame,\nthrottled: throttled,\ndebounce: debounce,\n_toLeftRightCenter: _toLeftRightCenter,\n_alignStartEnd: _alignStartEnd,\n_textX: _textX,\n_pointInLine: _pointInLine,\n_steppedInterpolation: _steppedInterpolation,\n_bezierInterpolation: _bezierInterpolation,\nformatNumber: formatNumber,\ntoLineHeight: toLineHeight,\n_readValueToProps: _readValueToProps,\ntoTRBL: toTRBL,\ntoTRBLCorners: toTRBLCorners,\ntoPadding: toPadding,\ntoFont: toFont,\nresolve: resolve,\n_addGrace: _addGrace,\ncreateContext: createContext,\nPI: PI,\nTAU: TAU,\nPITAU: PITAU,\nINFINITY: INFINITY,\nRAD_PER_DEG: RAD_PER_DEG,\nHALF_PI: HALF_PI,\nQUARTER_PI: QUARTER_PI,\nTWO_THIRDS_PI: TWO_THIRDS_PI,\nlog10: log10,\nsign: sign,\nniceNum: niceNum,\n_factorize: _factorize,\nisNumber: isNumber,\nalmostEquals: almostEquals,\nalmostWhole: almostWhole,\n_setMinAndMaxByKey: _setMinAndMaxByKey,\ntoRadians: toRadians,\ntoDegrees: toDegrees,\n_decimalPlaces: _decimalPlaces,\ngetAngleFromPoint: getAngleFromPoint,\ndistanceBetweenPoints: distanceBetweenPoints,\n_angleDiff: _angleDiff,\n_normalizeAngle: _normalizeAngle,\n_angleBetween: _angleBetween,\n_limitValue: _limitValue,\n_int16Range: _int16Range,\n_isBetween: _isBetween,\ngetRtlAdapter: getRtlAdapter,\noverrideTextDirection: overrideTextDirection,\nrestoreTextDirection: restoreTextDirection,\n_boundSegment: _boundSegment,\n_boundSegments: _boundSegments,\n_computeSegments: _computeSegments\n});\n\nfunction binarySearch(metaset, axis, value, intersect) {\n const {controller, data, _sorted} = metaset;\n const iScale = controller._cachedMeta.iScale;\n if (iScale && axis === iScale.axis && axis !== 'r' && _sorted && data.length) {\n const lookupMethod = iScale._reversePixels ? _rlookupByKey : _lookupByKey;\n if (!intersect) {\n return lookupMethod(data, axis, value);\n } else if (controller._sharedOptions) {\n const el = data[0];\n const range = typeof el.getRange === 'function' && el.getRange(axis);\n if (range) {\n const start = lookupMethod(data, axis, value - range);\n const end = lookupMethod(data, axis, value + range);\n return {lo: start.lo, hi: end.hi};\n }\n }\n }\n return {lo: 0, hi: data.length - 1};\n}\nfunction evaluateInteractionItems(chart, axis, position, handler, intersect) {\n const metasets = chart.getSortedVisibleDatasetMetas();\n const value = position[axis];\n for (let i = 0, ilen = metasets.length; i < ilen; ++i) {\n const {index, data} = metasets[i];\n const {lo, hi} = binarySearch(metasets[i], axis, value, intersect);\n for (let j = lo; j <= hi; ++j) {\n const element = data[j];\n if (!element.skip) {\n handler(element, index, j);\n }\n }\n }\n}\nfunction getDistanceMetricForAxis(axis) {\n const useX = axis.indexOf('x') !== -1;\n const useY = axis.indexOf('y') !== -1;\n return function(pt1, pt2) {\n const deltaX = useX ? Math.abs(pt1.x - pt2.x) : 0;\n const deltaY = useY ? Math.abs(pt1.y - pt2.y) : 0;\n return Math.sqrt(Math.pow(deltaX, 2) + Math.pow(deltaY, 2));\n };\n}\nfunction getIntersectItems(chart, position, axis, useFinalPosition, includeInvisible) {\n const items = [];\n if (!includeInvisible && !chart.isPointInArea(position)) {\n return items;\n }\n const evaluationFunc = function(element, datasetIndex, index) {\n if (!includeInvisible && !_isPointInArea(element, chart.chartArea, 0)) {\n return;\n }\n if (element.inRange(position.x, position.y, useFinalPosition)) {\n items.push({element, datasetIndex, index});\n }\n };\n evaluateInteractionItems(chart, axis, position, evaluationFunc, true);\n return items;\n}\nfunction getNearestRadialItems(chart, position, axis, useFinalPosition) {\n let items = [];\n function evaluationFunc(element, datasetIndex, index) {\n const {startAngle, endAngle} = element.getProps(['startAngle', 'endAngle'], useFinalPosition);\n const {angle} = getAngleFromPoint(element, {x: position.x, y: position.y});\n if (_angleBetween(angle, startAngle, endAngle)) {\n items.push({element, datasetIndex, index});\n }\n }\n evaluateInteractionItems(chart, axis, position, evaluationFunc);\n return items;\n}\nfunction getNearestCartesianItems(chart, position, axis, intersect, useFinalPosition, includeInvisible) {\n let items = [];\n const distanceMetric = getDistanceMetricForAxis(axis);\n let minDistance = Number.POSITIVE_INFINITY;\n function evaluationFunc(element, datasetIndex, index) {\n const inRange = element.inRange(position.x, position.y, useFinalPosition);\n if (intersect && !inRange) {\n return;\n }\n const center = element.getCenterPoint(useFinalPosition);\n const pointInArea = !!includeInvisible || chart.isPointInArea(center);\n if (!pointInArea && !inRange) {\n return;\n }\n const distance = distanceMetric(position, center);\n if (distance < minDistance) {\n items = [{element, datasetIndex, index}];\n minDistance = distance;\n } else if (distance === minDistance) {\n items.push({element, datasetIndex, index});\n }\n }\n evaluateInteractionItems(chart, axis, position, evaluationFunc);\n return items;\n}\nfunction getNearestItems(chart, position, axis, intersect, useFinalPosition, includeInvisible) {\n if (!includeInvisible && !chart.isPointInArea(position)) {\n return [];\n }\n return axis === 'r' && !intersect\n ? getNearestRadialItems(chart, position, axis, useFinalPosition)\n : getNearestCartesianItems(chart, position, axis, intersect, useFinalPosition, includeInvisible);\n}\nfunction getAxisItems(chart, position, axis, intersect, useFinalPosition) {\n const items = [];\n const rangeMethod = axis === 'x' ? 'inXRange' : 'inYRange';\n let intersectsItem = false;\n evaluateInteractionItems(chart, axis, position, (element, datasetIndex, index) => {\n if (element[rangeMethod](position[axis], useFinalPosition)) {\n items.push({element, datasetIndex, index});\n intersectsItem = intersectsItem || element.inRange(position.x, position.y, useFinalPosition);\n }\n });\n if (intersect && !intersectsItem) {\n return [];\n }\n return items;\n}\nvar Interaction = {\n evaluateInteractionItems,\n modes: {\n index(chart, e, options, useFinalPosition) {\n const position = getRelativePosition(e, chart);\n const axis = options.axis || 'x';\n const includeInvisible = options.includeInvisible || false;\n const items = options.intersect\n ? getIntersectItems(chart, position, axis, useFinalPosition, includeInvisible)\n : getNearestItems(chart, position, axis, false, useFinalPosition, includeInvisible);\n const elements = [];\n if (!items.length) {\n return [];\n }\n chart.getSortedVisibleDatasetMetas().forEach((meta) => {\n const index = items[0].index;\n const element = meta.data[index];\n if (element && !element.skip) {\n elements.push({element, datasetIndex: meta.index, index});\n }\n });\n return elements;\n },\n dataset(chart, e, options, useFinalPosition) {\n const position = getRelativePosition(e, chart);\n const axis = options.axis || 'xy';\n const includeInvisible = options.includeInvisible || false;\n let items = options.intersect\n ? getIntersectItems(chart, position, axis, useFinalPosition, includeInvisible) :\n getNearestItems(chart, position, axis, false, useFinalPosition, includeInvisible);\n if (items.length > 0) {\n const datasetIndex = items[0].datasetIndex;\n const data = chart.getDatasetMeta(datasetIndex).data;\n items = [];\n for (let i = 0; i < data.length; ++i) {\n items.push({element: data[i], datasetIndex, index: i});\n }\n }\n return items;\n },\n point(chart, e, options, useFinalPosition) {\n const position = getRelativePosition(e, chart);\n const axis = options.axis || 'xy';\n const includeInvisible = options.includeInvisible || false;\n return getIntersectItems(chart, position, axis, useFinalPosition, includeInvisible);\n },\n nearest(chart, e, options, useFinalPosition) {\n const position = getRelativePosition(e, chart);\n const axis = options.axis || 'xy';\n const includeInvisible = options.includeInvisible || false;\n return getNearestItems(chart, position, axis, options.intersect, useFinalPosition, includeInvisible);\n },\n x(chart, e, options, useFinalPosition) {\n const position = getRelativePosition(e, chart);\n return getAxisItems(chart, position, 'x', options.intersect, useFinalPosition);\n },\n y(chart, e, options, useFinalPosition) {\n const position = getRelativePosition(e, chart);\n return getAxisItems(chart, position, 'y', options.intersect, useFinalPosition);\n }\n }\n};\n\nconst STATIC_POSITIONS = ['left', 'top', 'right', 'bottom'];\nfunction filterByPosition(array, position) {\n return array.filter(v => v.pos === position);\n}\nfunction filterDynamicPositionByAxis(array, axis) {\n return array.filter(v => STATIC_POSITIONS.indexOf(v.pos) === -1 && v.box.axis === axis);\n}\nfunction sortByWeight(array, reverse) {\n return array.sort((a, b) => {\n const v0 = reverse ? b : a;\n const v1 = reverse ? a : b;\n return v0.weight === v1.weight ?\n v0.index - v1.index :\n v0.weight - v1.weight;\n });\n}\nfunction wrapBoxes(boxes) {\n const layoutBoxes = [];\n let i, ilen, box, pos, stack, stackWeight;\n for (i = 0, ilen = (boxes || []).length; i < ilen; ++i) {\n box = boxes[i];\n ({position: pos, options: {stack, stackWeight = 1}} = box);\n layoutBoxes.push({\n index: i,\n box,\n pos,\n horizontal: box.isHorizontal(),\n weight: box.weight,\n stack: stack && (pos + stack),\n stackWeight\n });\n }\n return layoutBoxes;\n}\nfunction buildStacks(layouts) {\n const stacks = {};\n for (const wrap of layouts) {\n const {stack, pos, stackWeight} = wrap;\n if (!stack || !STATIC_POSITIONS.includes(pos)) {\n continue;\n }\n const _stack = stacks[stack] || (stacks[stack] = {count: 0, placed: 0, weight: 0, size: 0});\n _stack.count++;\n _stack.weight += stackWeight;\n }\n return stacks;\n}\nfunction setLayoutDims(layouts, params) {\n const stacks = buildStacks(layouts);\n const {vBoxMaxWidth, hBoxMaxHeight} = params;\n let i, ilen, layout;\n for (i = 0, ilen = layouts.length; i < ilen; ++i) {\n layout = layouts[i];\n const {fullSize} = layout.box;\n const stack = stacks[layout.stack];\n const factor = stack && layout.stackWeight / stack.weight;\n if (layout.horizontal) {\n layout.width = factor ? factor * vBoxMaxWidth : fullSize && params.availableWidth;\n layout.height = hBoxMaxHeight;\n } else {\n layout.width = vBoxMaxWidth;\n layout.height = factor ? factor * hBoxMaxHeight : fullSize && params.availableHeight;\n }\n }\n return stacks;\n}\nfunction buildLayoutBoxes(boxes) {\n const layoutBoxes = wrapBoxes(boxes);\n const fullSize = sortByWeight(layoutBoxes.filter(wrap => wrap.box.fullSize), true);\n const left = sortByWeight(filterByPosition(layoutBoxes, 'left'), true);\n const right = sortByWeight(filterByPosition(layoutBoxes, 'right'));\n const top = sortByWeight(filterByPosition(layoutBoxes, 'top'), true);\n const bottom = sortByWeight(filterByPosition(layoutBoxes, 'bottom'));\n const centerHorizontal = filterDynamicPositionByAxis(layoutBoxes, 'x');\n const centerVertical = filterDynamicPositionByAxis(layoutBoxes, 'y');\n return {\n fullSize,\n leftAndTop: left.concat(top),\n rightAndBottom: right.concat(centerVertical).concat(bottom).concat(centerHorizontal),\n chartArea: filterByPosition(layoutBoxes, 'chartArea'),\n vertical: left.concat(right).concat(centerVertical),\n horizontal: top.concat(bottom).concat(centerHorizontal)\n };\n}\nfunction getCombinedMax(maxPadding, chartArea, a, b) {\n return Math.max(maxPadding[a], chartArea[a]) + Math.max(maxPadding[b], chartArea[b]);\n}\nfunction updateMaxPadding(maxPadding, boxPadding) {\n maxPadding.top = Math.max(maxPadding.top, boxPadding.top);\n maxPadding.left = Math.max(maxPadding.left, boxPadding.left);\n maxPadding.bottom = Math.max(maxPadding.bottom, boxPadding.bottom);\n maxPadding.right = Math.max(maxPadding.right, boxPadding.right);\n}\nfunction updateDims(chartArea, params, layout, stacks) {\n const {pos, box} = layout;\n const maxPadding = chartArea.maxPadding;\n if (!isObject(pos)) {\n if (layout.size) {\n chartArea[pos] -= layout.size;\n }\n const stack = stacks[layout.stack] || {size: 0, count: 1};\n stack.size = Math.max(stack.size, layout.horizontal ? box.height : box.width);\n layout.size = stack.size / stack.count;\n chartArea[pos] += layout.size;\n }\n if (box.getPadding) {\n updateMaxPadding(maxPadding, box.getPadding());\n }\n const newWidth = Math.max(0, params.outerWidth - getCombinedMax(maxPadding, chartArea, 'left', 'right'));\n const newHeight = Math.max(0, params.outerHeight - getCombinedMax(maxPadding, chartArea, 'top', 'bottom'));\n const widthChanged = newWidth !== chartArea.w;\n const heightChanged = newHeight !== chartArea.h;\n chartArea.w = newWidth;\n chartArea.h = newHeight;\n return layout.horizontal\n ? {same: widthChanged, other: heightChanged}\n : {same: heightChanged, other: widthChanged};\n}\nfunction handleMaxPadding(chartArea) {\n const maxPadding = chartArea.maxPadding;\n function updatePos(pos) {\n const change = Math.max(maxPadding[pos] - chartArea[pos], 0);\n chartArea[pos] += change;\n return change;\n }\n chartArea.y += updatePos('top');\n chartArea.x += updatePos('left');\n updatePos('right');\n updatePos('bottom');\n}\nfunction getMargins(horizontal, chartArea) {\n const maxPadding = chartArea.maxPadding;\n function marginForPositions(positions) {\n const margin = {left: 0, top: 0, right: 0, bottom: 0};\n positions.forEach((pos) => {\n margin[pos] = Math.max(chartArea[pos], maxPadding[pos]);\n });\n return margin;\n }\n return horizontal\n ? marginForPositions(['left', 'right'])\n : marginForPositions(['top', 'bottom']);\n}\nfunction fitBoxes(boxes, chartArea, params, stacks) {\n const refitBoxes = [];\n let i, ilen, layout, box, refit, changed;\n for (i = 0, ilen = boxes.length, refit = 0; i < ilen; ++i) {\n layout = boxes[i];\n box = layout.box;\n box.update(\n layout.width || chartArea.w,\n layout.height || chartArea.h,\n getMargins(layout.horizontal, chartArea)\n );\n const {same, other} = updateDims(chartArea, params, layout, stacks);\n refit |= same && refitBoxes.length;\n changed = changed || other;\n if (!box.fullSize) {\n refitBoxes.push(layout);\n }\n }\n return refit && fitBoxes(refitBoxes, chartArea, params, stacks) || changed;\n}\nfunction setBoxDims(box, left, top, width, height) {\n box.top = top;\n box.left = left;\n box.right = left + width;\n box.bottom = top + height;\n box.width = width;\n box.height = height;\n}\nfunction placeBoxes(boxes, chartArea, params, stacks) {\n const userPadding = params.padding;\n let {x, y} = chartArea;\n for (const layout of boxes) {\n const box = layout.box;\n const stack = stacks[layout.stack] || {count: 1, placed: 0, weight: 1};\n const weight = (layout.stackWeight / stack.weight) || 1;\n if (layout.horizontal) {\n const width = chartArea.w * weight;\n const height = stack.size || box.height;\n if (defined(stack.start)) {\n y = stack.start;\n }\n if (box.fullSize) {\n setBoxDims(box, userPadding.left, y, params.outerWidth - userPadding.right - userPadding.left, height);\n } else {\n setBoxDims(box, chartArea.left + stack.placed, y, width, height);\n }\n stack.start = y;\n stack.placed += width;\n y = box.bottom;\n } else {\n const height = chartArea.h * weight;\n const width = stack.size || box.width;\n if (defined(stack.start)) {\n x = stack.start;\n }\n if (box.fullSize) {\n setBoxDims(box, x, userPadding.top, width, params.outerHeight - userPadding.bottom - userPadding.top);\n } else {\n setBoxDims(box, x, chartArea.top + stack.placed, width, height);\n }\n stack.start = x;\n stack.placed += height;\n x = box.right;\n }\n }\n chartArea.x = x;\n chartArea.y = y;\n}\ndefaults.set('layout', {\n autoPadding: true,\n padding: {\n top: 0,\n right: 0,\n bottom: 0,\n left: 0\n }\n});\nvar layouts = {\n addBox(chart, item) {\n if (!chart.boxes) {\n chart.boxes = [];\n }\n item.fullSize = item.fullSize || false;\n item.position = item.position || 'top';\n item.weight = item.weight || 0;\n item._layers = item._layers || function() {\n return [{\n z: 0,\n draw(chartArea) {\n item.draw(chartArea);\n }\n }];\n };\n chart.boxes.push(item);\n },\n removeBox(chart, layoutItem) {\n const index = chart.boxes ? chart.boxes.indexOf(layoutItem) : -1;\n if (index !== -1) {\n chart.boxes.splice(index, 1);\n }\n },\n configure(chart, item, options) {\n item.fullSize = options.fullSize;\n item.position = options.position;\n item.weight = options.weight;\n },\n update(chart, width, height, minPadding) {\n if (!chart) {\n return;\n }\n const padding = toPadding(chart.options.layout.padding);\n const availableWidth = Math.max(width - padding.width, 0);\n const availableHeight = Math.max(height - padding.height, 0);\n const boxes = buildLayoutBoxes(chart.boxes);\n const verticalBoxes = boxes.vertical;\n const horizontalBoxes = boxes.horizontal;\n each(chart.boxes, box => {\n if (typeof box.beforeLayout === 'function') {\n box.beforeLayout();\n }\n });\n const visibleVerticalBoxCount = verticalBoxes.reduce((total, wrap) =>\n wrap.box.options && wrap.box.options.display === false ? total : total + 1, 0) || 1;\n const params = Object.freeze({\n outerWidth: width,\n outerHeight: height,\n padding,\n availableWidth,\n availableHeight,\n vBoxMaxWidth: availableWidth / 2 / visibleVerticalBoxCount,\n hBoxMaxHeight: availableHeight / 2\n });\n const maxPadding = Object.assign({}, padding);\n updateMaxPadding(maxPadding, toPadding(minPadding));\n const chartArea = Object.assign({\n maxPadding,\n w: availableWidth,\n h: availableHeight,\n x: padding.left,\n y: padding.top\n }, padding);\n const stacks = setLayoutDims(verticalBoxes.concat(horizontalBoxes), params);\n fitBoxes(boxes.fullSize, chartArea, params, stacks);\n fitBoxes(verticalBoxes, chartArea, params, stacks);\n if (fitBoxes(horizontalBoxes, chartArea, params, stacks)) {\n fitBoxes(verticalBoxes, chartArea, params, stacks);\n }\n handleMaxPadding(chartArea);\n placeBoxes(boxes.leftAndTop, chartArea, params, stacks);\n chartArea.x += chartArea.w;\n chartArea.y += chartArea.h;\n placeBoxes(boxes.rightAndBottom, chartArea, params, stacks);\n chart.chartArea = {\n left: chartArea.left,\n top: chartArea.top,\n right: chartArea.left + chartArea.w,\n bottom: chartArea.top + chartArea.h,\n height: chartArea.h,\n width: chartArea.w,\n };\n each(boxes.chartArea, (layout) => {\n const box = layout.box;\n Object.assign(box, chart.chartArea);\n box.update(chartArea.w, chartArea.h, {left: 0, top: 0, right: 0, bottom: 0});\n });\n }\n};\n\nclass BasePlatform {\n acquireContext(canvas, aspectRatio) {}\n releaseContext(context) {\n return false;\n }\n addEventListener(chart, type, listener) {}\n removeEventListener(chart, type, listener) {}\n getDevicePixelRatio() {\n return 1;\n }\n getMaximumSize(element, width, height, aspectRatio) {\n width = Math.max(0, width || element.width);\n height = height || element.height;\n return {\n width,\n height: Math.max(0, aspectRatio ? Math.floor(width / aspectRatio) : height)\n };\n }\n isAttached(canvas) {\n return true;\n }\n updateConfig(config) {\n }\n}\n\nclass BasicPlatform extends BasePlatform {\n acquireContext(item) {\n return item && item.getContext && item.getContext('2d') || null;\n }\n updateConfig(config) {\n config.options.animation = false;\n }\n}\n\nconst EXPANDO_KEY = '$chartjs';\nconst EVENT_TYPES = {\n touchstart: 'mousedown',\n touchmove: 'mousemove',\n touchend: 'mouseup',\n pointerenter: 'mouseenter',\n pointerdown: 'mousedown',\n pointermove: 'mousemove',\n pointerup: 'mouseup',\n pointerleave: 'mouseout',\n pointerout: 'mouseout'\n};\nconst isNullOrEmpty = value => value === null || value === '';\nfunction initCanvas(canvas, aspectRatio) {\n const style = canvas.style;\n const renderHeight = canvas.getAttribute('height');\n const renderWidth = canvas.getAttribute('width');\n canvas[EXPANDO_KEY] = {\n initial: {\n height: renderHeight,\n width: renderWidth,\n style: {\n display: style.display,\n height: style.height,\n width: style.width\n }\n }\n };\n style.display = style.display || 'block';\n style.boxSizing = style.boxSizing || 'border-box';\n if (isNullOrEmpty(renderWidth)) {\n const displayWidth = readUsedSize(canvas, 'width');\n if (displayWidth !== undefined) {\n canvas.width = displayWidth;\n }\n }\n if (isNullOrEmpty(renderHeight)) {\n if (canvas.style.height === '') {\n canvas.height = canvas.width / (aspectRatio || 2);\n } else {\n const displayHeight = readUsedSize(canvas, 'height');\n if (displayHeight !== undefined) {\n canvas.height = displayHeight;\n }\n }\n }\n return canvas;\n}\nconst eventListenerOptions = supportsEventListenerOptions ? {passive: true} : false;\nfunction addListener(node, type, listener) {\n node.addEventListener(type, listener, eventListenerOptions);\n}\nfunction removeListener(chart, type, listener) {\n chart.canvas.removeEventListener(type, listener, eventListenerOptions);\n}\nfunction fromNativeEvent(event, chart) {\n const type = EVENT_TYPES[event.type] || event.type;\n const {x, y} = getRelativePosition(event, chart);\n return {\n type,\n chart,\n native: event,\n x: x !== undefined ? x : null,\n y: y !== undefined ? y : null,\n };\n}\nfunction nodeListContains(nodeList, canvas) {\n for (const node of nodeList) {\n if (node === canvas || node.contains(canvas)) {\n return true;\n }\n }\n}\nfunction createAttachObserver(chart, type, listener) {\n const canvas = chart.canvas;\n const observer = new MutationObserver(entries => {\n let trigger = false;\n for (const entry of entries) {\n trigger = trigger || nodeListContains(entry.addedNodes, canvas);\n trigger = trigger && !nodeListContains(entry.removedNodes, canvas);\n }\n if (trigger) {\n listener();\n }\n });\n observer.observe(document, {childList: true, subtree: true});\n return observer;\n}\nfunction createDetachObserver(chart, type, listener) {\n const canvas = chart.canvas;\n const observer = new MutationObserver(entries => {\n let trigger = false;\n for (const entry of entries) {\n trigger = trigger || nodeListContains(entry.removedNodes, canvas);\n trigger = trigger && !nodeListContains(entry.addedNodes, canvas);\n }\n if (trigger) {\n listener();\n }\n });\n observer.observe(document, {childList: true, subtree: true});\n return observer;\n}\nconst drpListeningCharts = new Map();\nlet oldDevicePixelRatio = 0;\nfunction onWindowResize() {\n const dpr = window.devicePixelRatio;\n if (dpr === oldDevicePixelRatio) {\n return;\n }\n oldDevicePixelRatio = dpr;\n drpListeningCharts.forEach((resize, chart) => {\n if (chart.currentDevicePixelRatio !== dpr) {\n resize();\n }\n });\n}\nfunction listenDevicePixelRatioChanges(chart, resize) {\n if (!drpListeningCharts.size) {\n window.addEventListener('resize', onWindowResize);\n }\n drpListeningCharts.set(chart, resize);\n}\nfunction unlistenDevicePixelRatioChanges(chart) {\n drpListeningCharts.delete(chart);\n if (!drpListeningCharts.size) {\n window.removeEventListener('resize', onWindowResize);\n }\n}\nfunction createResizeObserver(chart, type, listener) {\n const canvas = chart.canvas;\n const container = canvas && _getParentNode(canvas);\n if (!container) {\n return;\n }\n const resize = throttled((width, height) => {\n const w = container.clientWidth;\n listener(width, height);\n if (w < container.clientWidth) {\n listener();\n }\n }, window);\n const observer = new ResizeObserver(entries => {\n const entry = entries[0];\n const width = entry.contentRect.width;\n const height = entry.contentRect.height;\n if (width === 0 && height === 0) {\n return;\n }\n resize(width, height);\n });\n observer.observe(container);\n listenDevicePixelRatioChanges(chart, resize);\n return observer;\n}\nfunction releaseObserver(chart, type, observer) {\n if (observer) {\n observer.disconnect();\n }\n if (type === 'resize') {\n unlistenDevicePixelRatioChanges(chart);\n }\n}\nfunction createProxyAndListen(chart, type, listener) {\n const canvas = chart.canvas;\n const proxy = throttled((event) => {\n if (chart.ctx !== null) {\n listener(fromNativeEvent(event, chart));\n }\n }, chart, (args) => {\n const event = args[0];\n return [event, event.offsetX, event.offsetY];\n });\n addListener(canvas, type, proxy);\n return proxy;\n}\nclass DomPlatform extends BasePlatform {\n acquireContext(canvas, aspectRatio) {\n const context = canvas && canvas.getContext && canvas.getContext('2d');\n if (context && context.canvas === canvas) {\n initCanvas(canvas, aspectRatio);\n return context;\n }\n return null;\n }\n releaseContext(context) {\n const canvas = context.canvas;\n if (!canvas[EXPANDO_KEY]) {\n return false;\n }\n const initial = canvas[EXPANDO_KEY].initial;\n ['height', 'width'].forEach((prop) => {\n const value = initial[prop];\n if (isNullOrUndef(value)) {\n canvas.removeAttribute(prop);\n } else {\n canvas.setAttribute(prop, value);\n }\n });\n const style = initial.style || {};\n Object.keys(style).forEach((key) => {\n canvas.style[key] = style[key];\n });\n canvas.width = canvas.width;\n delete canvas[EXPANDO_KEY];\n return true;\n }\n addEventListener(chart, type, listener) {\n this.removeEventListener(chart, type);\n const proxies = chart.$proxies || (chart.$proxies = {});\n const handlers = {\n attach: createAttachObserver,\n detach: createDetachObserver,\n resize: createResizeObserver\n };\n const handler = handlers[type] || createProxyAndListen;\n proxies[type] = handler(chart, type, listener);\n }\n removeEventListener(chart, type) {\n const proxies = chart.$proxies || (chart.$proxies = {});\n const proxy = proxies[type];\n if (!proxy) {\n return;\n }\n const handlers = {\n attach: releaseObserver,\n detach: releaseObserver,\n resize: releaseObserver\n };\n const handler = handlers[type] || removeListener;\n handler(chart, type, proxy);\n proxies[type] = undefined;\n }\n getDevicePixelRatio() {\n return window.devicePixelRatio;\n }\n getMaximumSize(canvas, width, height, aspectRatio) {\n return getMaximumSize(canvas, width, height, aspectRatio);\n }\n isAttached(canvas) {\n const container = _getParentNode(canvas);\n return !!(container && container.isConnected);\n }\n}\n\nfunction _detectPlatform(canvas) {\n if (!_isDomSupported() || (typeof OffscreenCanvas !== 'undefined' && canvas instanceof OffscreenCanvas)) {\n return BasicPlatform;\n }\n return DomPlatform;\n}\n\nvar platforms = /*#__PURE__*/Object.freeze({\n__proto__: null,\n_detectPlatform: _detectPlatform,\nBasePlatform: BasePlatform,\nBasicPlatform: BasicPlatform,\nDomPlatform: DomPlatform\n});\n\nconst transparent = 'transparent';\nconst interpolators = {\n boolean(from, to, factor) {\n return factor > 0.5 ? to : from;\n },\n color(from, to, factor) {\n const c0 = color(from || transparent);\n const c1 = c0.valid && color(to || transparent);\n return c1 && c1.valid\n ? c1.mix(c0, factor).hexString()\n : to;\n },\n number(from, to, factor) {\n return from + (to - from) * factor;\n }\n};\nclass Animation {\n constructor(cfg, target, prop, to) {\n const currentValue = target[prop];\n to = resolve([cfg.to, to, currentValue, cfg.from]);\n const from = resolve([cfg.from, currentValue, to]);\n this._active = true;\n this._fn = cfg.fn || interpolators[cfg.type || typeof from];\n this._easing = effects[cfg.easing] || effects.linear;\n this._start = Math.floor(Date.now() + (cfg.delay || 0));\n this._duration = this._total = Math.floor(cfg.duration);\n this._loop = !!cfg.loop;\n this._target = target;\n this._prop = prop;\n this._from = from;\n this._to = to;\n this._promises = undefined;\n }\n active() {\n return this._active;\n }\n update(cfg, to, date) {\n if (this._active) {\n this._notify(false);\n const currentValue = this._target[this._prop];\n const elapsed = date - this._start;\n const remain = this._duration - elapsed;\n this._start = date;\n this._duration = Math.floor(Math.max(remain, cfg.duration));\n this._total += elapsed;\n this._loop = !!cfg.loop;\n this._to = resolve([cfg.to, to, currentValue, cfg.from]);\n this._from = resolve([cfg.from, currentValue, to]);\n }\n }\n cancel() {\n if (this._active) {\n this.tick(Date.now());\n this._active = false;\n this._notify(false);\n }\n }\n tick(date) {\n const elapsed = date - this._start;\n const duration = this._duration;\n const prop = this._prop;\n const from = this._from;\n const loop = this._loop;\n const to = this._to;\n let factor;\n this._active = from !== to && (loop || (elapsed < duration));\n if (!this._active) {\n this._target[prop] = to;\n this._notify(true);\n return;\n }\n if (elapsed < 0) {\n this._target[prop] = from;\n return;\n }\n factor = (elapsed / duration) % 2;\n factor = loop && factor > 1 ? 2 - factor : factor;\n factor = this._easing(Math.min(1, Math.max(0, factor)));\n this._target[prop] = this._fn(from, to, factor);\n }\n wait() {\n const promises = this._promises || (this._promises = []);\n return new Promise((res, rej) => {\n promises.push({res, rej});\n });\n }\n _notify(resolved) {\n const method = resolved ? 'res' : 'rej';\n const promises = this._promises || [];\n for (let i = 0; i < promises.length; i++) {\n promises[i][method]();\n }\n }\n}\n\nconst numbers = ['x', 'y', 'borderWidth', 'radius', 'tension'];\nconst colors = ['color', 'borderColor', 'backgroundColor'];\ndefaults.set('animation', {\n delay: undefined,\n duration: 1000,\n easing: 'easeOutQuart',\n fn: undefined,\n from: undefined,\n loop: undefined,\n to: undefined,\n type: undefined,\n});\nconst animationOptions = Object.keys(defaults.animation);\ndefaults.describe('animation', {\n _fallback: false,\n _indexable: false,\n _scriptable: (name) => name !== 'onProgress' && name !== 'onComplete' && name !== 'fn',\n});\ndefaults.set('animations', {\n colors: {\n type: 'color',\n properties: colors\n },\n numbers: {\n type: 'number',\n properties: numbers\n },\n});\ndefaults.describe('animations', {\n _fallback: 'animation',\n});\ndefaults.set('transitions', {\n active: {\n animation: {\n duration: 400\n }\n },\n resize: {\n animation: {\n duration: 0\n }\n },\n show: {\n animations: {\n colors: {\n from: 'transparent'\n },\n visible: {\n type: 'boolean',\n duration: 0\n },\n }\n },\n hide: {\n animations: {\n colors: {\n to: 'transparent'\n },\n visible: {\n type: 'boolean',\n easing: 'linear',\n fn: v => v | 0\n },\n }\n }\n});\nclass Animations {\n constructor(chart, config) {\n this._chart = chart;\n this._properties = new Map();\n this.configure(config);\n }\n configure(config) {\n if (!isObject(config)) {\n return;\n }\n const animatedProps = this._properties;\n Object.getOwnPropertyNames(config).forEach(key => {\n const cfg = config[key];\n if (!isObject(cfg)) {\n return;\n }\n const resolved = {};\n for (const option of animationOptions) {\n resolved[option] = cfg[option];\n }\n (isArray(cfg.properties) && cfg.properties || [key]).forEach((prop) => {\n if (prop === key || !animatedProps.has(prop)) {\n animatedProps.set(prop, resolved);\n }\n });\n });\n }\n _animateOptions(target, values) {\n const newOptions = values.options;\n const options = resolveTargetOptions(target, newOptions);\n if (!options) {\n return [];\n }\n const animations = this._createAnimations(options, newOptions);\n if (newOptions.$shared) {\n awaitAll(target.options.$animations, newOptions).then(() => {\n target.options = newOptions;\n }, () => {\n });\n }\n return animations;\n }\n _createAnimations(target, values) {\n const animatedProps = this._properties;\n const animations = [];\n const running = target.$animations || (target.$animations = {});\n const props = Object.keys(values);\n const date = Date.now();\n let i;\n for (i = props.length - 1; i >= 0; --i) {\n const prop = props[i];\n if (prop.charAt(0) === '$') {\n continue;\n }\n if (prop === 'options') {\n animations.push(...this._animateOptions(target, values));\n continue;\n }\n const value = values[prop];\n let animation = running[prop];\n const cfg = animatedProps.get(prop);\n if (animation) {\n if (cfg && animation.active()) {\n animation.update(cfg, value, date);\n continue;\n } else {\n animation.cancel();\n }\n }\n if (!cfg || !cfg.duration) {\n target[prop] = value;\n continue;\n }\n running[prop] = animation = new Animation(cfg, target, prop, value);\n animations.push(animation);\n }\n return animations;\n }\n update(target, values) {\n if (this._properties.size === 0) {\n Object.assign(target, values);\n return;\n }\n const animations = this._createAnimations(target, values);\n if (animations.length) {\n animator.add(this._chart, animations);\n return true;\n }\n }\n}\nfunction awaitAll(animations, properties) {\n const running = [];\n const keys = Object.keys(properties);\n for (let i = 0; i < keys.length; i++) {\n const anim = animations[keys[i]];\n if (anim && anim.active()) {\n running.push(anim.wait());\n }\n }\n return Promise.all(running);\n}\nfunction resolveTargetOptions(target, newOptions) {\n if (!newOptions) {\n return;\n }\n let options = target.options;\n if (!options) {\n target.options = newOptions;\n return;\n }\n if (options.$shared) {\n target.options = options = Object.assign({}, options, {$shared: false, $animations: {}});\n }\n return options;\n}\n\nfunction scaleClip(scale, allowedOverflow) {\n const opts = scale && scale.options || {};\n const reverse = opts.reverse;\n const min = opts.min === undefined ? allowedOverflow : 0;\n const max = opts.max === undefined ? allowedOverflow : 0;\n return {\n start: reverse ? max : min,\n end: reverse ? min : max\n };\n}\nfunction defaultClip(xScale, yScale, allowedOverflow) {\n if (allowedOverflow === false) {\n return false;\n }\n const x = scaleClip(xScale, allowedOverflow);\n const y = scaleClip(yScale, allowedOverflow);\n return {\n top: y.end,\n right: x.end,\n bottom: y.start,\n left: x.start\n };\n}\nfunction toClip(value) {\n let t, r, b, l;\n if (isObject(value)) {\n t = value.top;\n r = value.right;\n b = value.bottom;\n l = value.left;\n } else {\n t = r = b = l = value;\n }\n return {\n top: t,\n right: r,\n bottom: b,\n left: l,\n disabled: value === false\n };\n}\nfunction getSortedDatasetIndices(chart, filterVisible) {\n const keys = [];\n const metasets = chart._getSortedDatasetMetas(filterVisible);\n let i, ilen;\n for (i = 0, ilen = metasets.length; i < ilen; ++i) {\n keys.push(metasets[i].index);\n }\n return keys;\n}\nfunction applyStack(stack, value, dsIndex, options = {}) {\n const keys = stack.keys;\n const singleMode = options.mode === 'single';\n let i, ilen, datasetIndex, otherValue;\n if (value === null) {\n return;\n }\n for (i = 0, ilen = keys.length; i < ilen; ++i) {\n datasetIndex = +keys[i];\n if (datasetIndex === dsIndex) {\n if (options.all) {\n continue;\n }\n break;\n }\n otherValue = stack.values[datasetIndex];\n if (isNumberFinite(otherValue) && (singleMode || (value === 0 || sign(value) === sign(otherValue)))) {\n value += otherValue;\n }\n }\n return value;\n}\nfunction convertObjectDataToArray(data) {\n const keys = Object.keys(data);\n const adata = new Array(keys.length);\n let i, ilen, key;\n for (i = 0, ilen = keys.length; i < ilen; ++i) {\n key = keys[i];\n adata[i] = {\n x: key,\n y: data[key]\n };\n }\n return adata;\n}\nfunction isStacked(scale, meta) {\n const stacked = scale && scale.options.stacked;\n return stacked || (stacked === undefined && meta.stack !== undefined);\n}\nfunction getStackKey(indexScale, valueScale, meta) {\n return `${indexScale.id}.${valueScale.id}.${meta.stack || meta.type}`;\n}\nfunction getUserBounds(scale) {\n const {min, max, minDefined, maxDefined} = scale.getUserBounds();\n return {\n min: minDefined ? min : Number.NEGATIVE_INFINITY,\n max: maxDefined ? max : Number.POSITIVE_INFINITY\n };\n}\nfunction getOrCreateStack(stacks, stackKey, indexValue) {\n const subStack = stacks[stackKey] || (stacks[stackKey] = {});\n return subStack[indexValue] || (subStack[indexValue] = {});\n}\nfunction getLastIndexInStack(stack, vScale, positive, type) {\n for (const meta of vScale.getMatchingVisibleMetas(type).reverse()) {\n const value = stack[meta.index];\n if ((positive && value > 0) || (!positive && value < 0)) {\n return meta.index;\n }\n }\n return null;\n}\nfunction updateStacks(controller, parsed) {\n const {chart, _cachedMeta: meta} = controller;\n const stacks = chart._stacks || (chart._stacks = {});\n const {iScale, vScale, index: datasetIndex} = meta;\n const iAxis = iScale.axis;\n const vAxis = vScale.axis;\n const key = getStackKey(iScale, vScale, meta);\n const ilen = parsed.length;\n let stack;\n for (let i = 0; i < ilen; ++i) {\n const item = parsed[i];\n const {[iAxis]: index, [vAxis]: value} = item;\n const itemStacks = item._stacks || (item._stacks = {});\n stack = itemStacks[vAxis] = getOrCreateStack(stacks, key, index);\n stack[datasetIndex] = value;\n stack._top = getLastIndexInStack(stack, vScale, true, meta.type);\n stack._bottom = getLastIndexInStack(stack, vScale, false, meta.type);\n }\n}\nfunction getFirstScaleId(chart, axis) {\n const scales = chart.scales;\n return Object.keys(scales).filter(key => scales[key].axis === axis).shift();\n}\nfunction createDatasetContext(parent, index) {\n return createContext(parent,\n {\n active: false,\n dataset: undefined,\n datasetIndex: index,\n index,\n mode: 'default',\n type: 'dataset'\n }\n );\n}\nfunction createDataContext(parent, index, element) {\n return createContext(parent, {\n active: false,\n dataIndex: index,\n parsed: undefined,\n raw: undefined,\n element,\n index,\n mode: 'default',\n type: 'data'\n });\n}\nfunction clearStacks(meta, items) {\n const datasetIndex = meta.controller.index;\n const axis = meta.vScale && meta.vScale.axis;\n if (!axis) {\n return;\n }\n items = items || meta._parsed;\n for (const parsed of items) {\n const stacks = parsed._stacks;\n if (!stacks || stacks[axis] === undefined || stacks[axis][datasetIndex] === undefined) {\n return;\n }\n delete stacks[axis][datasetIndex];\n }\n}\nconst isDirectUpdateMode = (mode) => mode === 'reset' || mode === 'none';\nconst cloneIfNotShared = (cached, shared) => shared ? cached : Object.assign({}, cached);\nconst createStack = (canStack, meta, chart) => canStack && !meta.hidden && meta._stacked\n && {keys: getSortedDatasetIndices(chart, true), values: null};\nclass DatasetController {\n constructor(chart, datasetIndex) {\n this.chart = chart;\n this._ctx = chart.ctx;\n this.index = datasetIndex;\n this._cachedDataOpts = {};\n this._cachedMeta = this.getMeta();\n this._type = this._cachedMeta.type;\n this.options = undefined;\n this._parsing = false;\n this._data = undefined;\n this._objectData = undefined;\n this._sharedOptions = undefined;\n this._drawStart = undefined;\n this._drawCount = undefined;\n this.enableOptionSharing = false;\n this.supportsDecimation = false;\n this.$context = undefined;\n this._syncList = [];\n this.initialize();\n }\n initialize() {\n const meta = this._cachedMeta;\n this.configure();\n this.linkScales();\n meta._stacked = isStacked(meta.vScale, meta);\n this.addElements();\n }\n updateIndex(datasetIndex) {\n if (this.index !== datasetIndex) {\n clearStacks(this._cachedMeta);\n }\n this.index = datasetIndex;\n }\n linkScales() {\n const chart = this.chart;\n const meta = this._cachedMeta;\n const dataset = this.getDataset();\n const chooseId = (axis, x, y, r) => axis === 'x' ? x : axis === 'r' ? r : y;\n const xid = meta.xAxisID = valueOrDefault(dataset.xAxisID, getFirstScaleId(chart, 'x'));\n const yid = meta.yAxisID = valueOrDefault(dataset.yAxisID, getFirstScaleId(chart, 'y'));\n const rid = meta.rAxisID = valueOrDefault(dataset.rAxisID, getFirstScaleId(chart, 'r'));\n const indexAxis = meta.indexAxis;\n const iid = meta.iAxisID = chooseId(indexAxis, xid, yid, rid);\n const vid = meta.vAxisID = chooseId(indexAxis, yid, xid, rid);\n meta.xScale = this.getScaleForId(xid);\n meta.yScale = this.getScaleForId(yid);\n meta.rScale = this.getScaleForId(rid);\n meta.iScale = this.getScaleForId(iid);\n meta.vScale = this.getScaleForId(vid);\n }\n getDataset() {\n return this.chart.data.datasets[this.index];\n }\n getMeta() {\n return this.chart.getDatasetMeta(this.index);\n }\n getScaleForId(scaleID) {\n return this.chart.scales[scaleID];\n }\n _getOtherScale(scale) {\n const meta = this._cachedMeta;\n return scale === meta.iScale\n ? meta.vScale\n : meta.iScale;\n }\n reset() {\n this._update('reset');\n }\n _destroy() {\n const meta = this._cachedMeta;\n if (this._data) {\n unlistenArrayEvents(this._data, this);\n }\n if (meta._stacked) {\n clearStacks(meta);\n }\n }\n _dataCheck() {\n const dataset = this.getDataset();\n const data = dataset.data || (dataset.data = []);\n const _data = this._data;\n if (isObject(data)) {\n this._data = convertObjectDataToArray(data);\n } else if (_data !== data) {\n if (_data) {\n unlistenArrayEvents(_data, this);\n const meta = this._cachedMeta;\n clearStacks(meta);\n meta._parsed = [];\n }\n if (data && Object.isExtensible(data)) {\n listenArrayEvents(data, this);\n }\n this._syncList = [];\n this._data = data;\n }\n }\n addElements() {\n const meta = this._cachedMeta;\n this._dataCheck();\n if (this.datasetElementType) {\n meta.dataset = new this.datasetElementType();\n }\n }\n buildOrUpdateElements(resetNewElements) {\n const meta = this._cachedMeta;\n const dataset = this.getDataset();\n let stackChanged = false;\n this._dataCheck();\n const oldStacked = meta._stacked;\n meta._stacked = isStacked(meta.vScale, meta);\n if (meta.stack !== dataset.stack) {\n stackChanged = true;\n clearStacks(meta);\n meta.stack = dataset.stack;\n }\n this._resyncElements(resetNewElements);\n if (stackChanged || oldStacked !== meta._stacked) {\n updateStacks(this, meta._parsed);\n }\n }\n configure() {\n const config = this.chart.config;\n const scopeKeys = config.datasetScopeKeys(this._type);\n const scopes = config.getOptionScopes(this.getDataset(), scopeKeys, true);\n this.options = config.createResolver(scopes, this.getContext());\n this._parsing = this.options.parsing;\n this._cachedDataOpts = {};\n }\n parse(start, count) {\n const {_cachedMeta: meta, _data: data} = this;\n const {iScale, _stacked} = meta;\n const iAxis = iScale.axis;\n let sorted = start === 0 && count === data.length ? true : meta._sorted;\n let prev = start > 0 && meta._parsed[start - 1];\n let i, cur, parsed;\n if (this._parsing === false) {\n meta._parsed = data;\n meta._sorted = true;\n parsed = data;\n } else {\n if (isArray(data[start])) {\n parsed = this.parseArrayData(meta, data, start, count);\n } else if (isObject(data[start])) {\n parsed = this.parseObjectData(meta, data, start, count);\n } else {\n parsed = this.parsePrimitiveData(meta, data, start, count);\n }\n const isNotInOrderComparedToPrev = () => cur[iAxis] === null || (prev && cur[iAxis] < prev[iAxis]);\n for (i = 0; i < count; ++i) {\n meta._parsed[i + start] = cur = parsed[i];\n if (sorted) {\n if (isNotInOrderComparedToPrev()) {\n sorted = false;\n }\n prev = cur;\n }\n }\n meta._sorted = sorted;\n }\n if (_stacked) {\n updateStacks(this, parsed);\n }\n }\n parsePrimitiveData(meta, data, start, count) {\n const {iScale, vScale} = meta;\n const iAxis = iScale.axis;\n const vAxis = vScale.axis;\n const labels = iScale.getLabels();\n const singleScale = iScale === vScale;\n const parsed = new Array(count);\n let i, ilen, index;\n for (i = 0, ilen = count; i < ilen; ++i) {\n index = i + start;\n parsed[i] = {\n [iAxis]: singleScale || iScale.parse(labels[index], index),\n [vAxis]: vScale.parse(data[index], index)\n };\n }\n return parsed;\n }\n parseArrayData(meta, data, start, count) {\n const {xScale, yScale} = meta;\n const parsed = new Array(count);\n let i, ilen, index, item;\n for (i = 0, ilen = count; i < ilen; ++i) {\n index = i + start;\n item = data[index];\n parsed[i] = {\n x: xScale.parse(item[0], index),\n y: yScale.parse(item[1], index)\n };\n }\n return parsed;\n }\n parseObjectData(meta, data, start, count) {\n const {xScale, yScale} = meta;\n const {xAxisKey = 'x', yAxisKey = 'y'} = this._parsing;\n const parsed = new Array(count);\n let i, ilen, index, item;\n for (i = 0, ilen = count; i < ilen; ++i) {\n index = i + start;\n item = data[index];\n parsed[i] = {\n x: xScale.parse(resolveObjectKey(item, xAxisKey), index),\n y: yScale.parse(resolveObjectKey(item, yAxisKey), index)\n };\n }\n return parsed;\n }\n getParsed(index) {\n return this._cachedMeta._parsed[index];\n }\n getDataElement(index) {\n return this._cachedMeta.data[index];\n }\n applyStack(scale, parsed, mode) {\n const chart = this.chart;\n const meta = this._cachedMeta;\n const value = parsed[scale.axis];\n const stack = {\n keys: getSortedDatasetIndices(chart, true),\n values: parsed._stacks[scale.axis]\n };\n return applyStack(stack, value, meta.index, {mode});\n }\n updateRangeFromParsed(range, scale, parsed, stack) {\n const parsedValue = parsed[scale.axis];\n let value = parsedValue === null ? NaN : parsedValue;\n const values = stack && parsed._stacks[scale.axis];\n if (stack && values) {\n stack.values = values;\n value = applyStack(stack, parsedValue, this._cachedMeta.index);\n }\n range.min = Math.min(range.min, value);\n range.max = Math.max(range.max, value);\n }\n getMinMax(scale, canStack) {\n const meta = this._cachedMeta;\n const _parsed = meta._parsed;\n const sorted = meta._sorted && scale === meta.iScale;\n const ilen = _parsed.length;\n const otherScale = this._getOtherScale(scale);\n const stack = createStack(canStack, meta, this.chart);\n const range = {min: Number.POSITIVE_INFINITY, max: Number.NEGATIVE_INFINITY};\n const {min: otherMin, max: otherMax} = getUserBounds(otherScale);\n let i, parsed;\n function _skip() {\n parsed = _parsed[i];\n const otherValue = parsed[otherScale.axis];\n return !isNumberFinite(parsed[scale.axis]) || otherMin > otherValue || otherMax < otherValue;\n }\n for (i = 0; i < ilen; ++i) {\n if (_skip()) {\n continue;\n }\n this.updateRangeFromParsed(range, scale, parsed, stack);\n if (sorted) {\n break;\n }\n }\n if (sorted) {\n for (i = ilen - 1; i >= 0; --i) {\n if (_skip()) {\n continue;\n }\n this.updateRangeFromParsed(range, scale, parsed, stack);\n break;\n }\n }\n return range;\n }\n getAllParsedValues(scale) {\n const parsed = this._cachedMeta._parsed;\n const values = [];\n let i, ilen, value;\n for (i = 0, ilen = parsed.length; i < ilen; ++i) {\n value = parsed[i][scale.axis];\n if (isNumberFinite(value)) {\n values.push(value);\n }\n }\n return values;\n }\n getMaxOverflow() {\n return false;\n }\n getLabelAndValue(index) {\n const meta = this._cachedMeta;\n const iScale = meta.iScale;\n const vScale = meta.vScale;\n const parsed = this.getParsed(index);\n return {\n label: iScale ? '' + iScale.getLabelForValue(parsed[iScale.axis]) : '',\n value: vScale ? '' + vScale.getLabelForValue(parsed[vScale.axis]) : ''\n };\n }\n _update(mode) {\n const meta = this._cachedMeta;\n this.update(mode || 'default');\n meta._clip = toClip(valueOrDefault(this.options.clip, defaultClip(meta.xScale, meta.yScale, this.getMaxOverflow())));\n }\n update(mode) {}\n draw() {\n const ctx = this._ctx;\n const chart = this.chart;\n const meta = this._cachedMeta;\n const elements = meta.data || [];\n const area = chart.chartArea;\n const active = [];\n const start = this._drawStart || 0;\n const count = this._drawCount || (elements.length - start);\n const drawActiveElementsOnTop = this.options.drawActiveElementsOnTop;\n let i;\n if (meta.dataset) {\n meta.dataset.draw(ctx, area, start, count);\n }\n for (i = start; i < start + count; ++i) {\n const element = elements[i];\n if (element.hidden) {\n continue;\n }\n if (element.active && drawActiveElementsOnTop) {\n active.push(element);\n } else {\n element.draw(ctx, area);\n }\n }\n for (i = 0; i < active.length; ++i) {\n active[i].draw(ctx, area);\n }\n }\n getStyle(index, active) {\n const mode = active ? 'active' : 'default';\n return index === undefined && this._cachedMeta.dataset\n ? this.resolveDatasetElementOptions(mode)\n : this.resolveDataElementOptions(index || 0, mode);\n }\n getContext(index, active, mode) {\n const dataset = this.getDataset();\n let context;\n if (index >= 0 && index < this._cachedMeta.data.length) {\n const element = this._cachedMeta.data[index];\n context = element.$context ||\n (element.$context = createDataContext(this.getContext(), index, element));\n context.parsed = this.getParsed(index);\n context.raw = dataset.data[index];\n context.index = context.dataIndex = index;\n } else {\n context = this.$context ||\n (this.$context = createDatasetContext(this.chart.getContext(), this.index));\n context.dataset = dataset;\n context.index = context.datasetIndex = this.index;\n }\n context.active = !!active;\n context.mode = mode;\n return context;\n }\n resolveDatasetElementOptions(mode) {\n return this._resolveElementOptions(this.datasetElementType.id, mode);\n }\n resolveDataElementOptions(index, mode) {\n return this._resolveElementOptions(this.dataElementType.id, mode, index);\n }\n _resolveElementOptions(elementType, mode = 'default', index) {\n const active = mode === 'active';\n const cache = this._cachedDataOpts;\n const cacheKey = elementType + '-' + mode;\n const cached = cache[cacheKey];\n const sharing = this.enableOptionSharing && defined(index);\n if (cached) {\n return cloneIfNotShared(cached, sharing);\n }\n const config = this.chart.config;\n const scopeKeys = config.datasetElementScopeKeys(this._type, elementType);\n const prefixes = active ? [`${elementType}Hover`, 'hover', elementType, ''] : [elementType, ''];\n const scopes = config.getOptionScopes(this.getDataset(), scopeKeys);\n const names = Object.keys(defaults.elements[elementType]);\n const context = () => this.getContext(index, active);\n const values = config.resolveNamedOptions(scopes, names, context, prefixes);\n if (values.$shared) {\n values.$shared = sharing;\n cache[cacheKey] = Object.freeze(cloneIfNotShared(values, sharing));\n }\n return values;\n }\n _resolveAnimations(index, transition, active) {\n const chart = this.chart;\n const cache = this._cachedDataOpts;\n const cacheKey = `animation-${transition}`;\n const cached = cache[cacheKey];\n if (cached) {\n return cached;\n }\n let options;\n if (chart.options.animation !== false) {\n const config = this.chart.config;\n const scopeKeys = config.datasetAnimationScopeKeys(this._type, transition);\n const scopes = config.getOptionScopes(this.getDataset(), scopeKeys);\n options = config.createResolver(scopes, this.getContext(index, active, transition));\n }\n const animations = new Animations(chart, options && options.animations);\n if (options && options._cacheable) {\n cache[cacheKey] = Object.freeze(animations);\n }\n return animations;\n }\n getSharedOptions(options) {\n if (!options.$shared) {\n return;\n }\n return this._sharedOptions || (this._sharedOptions = Object.assign({}, options));\n }\n includeOptions(mode, sharedOptions) {\n return !sharedOptions || isDirectUpdateMode(mode) || this.chart._animationsDisabled;\n }\n updateElement(element, index, properties, mode) {\n if (isDirectUpdateMode(mode)) {\n Object.assign(element, properties);\n } else {\n this._resolveAnimations(index, mode).update(element, properties);\n }\n }\n updateSharedOptions(sharedOptions, mode, newOptions) {\n if (sharedOptions && !isDirectUpdateMode(mode)) {\n this._resolveAnimations(undefined, mode).update(sharedOptions, newOptions);\n }\n }\n _setStyle(element, index, mode, active) {\n element.active = active;\n const options = this.getStyle(index, active);\n this._resolveAnimations(index, mode, active).update(element, {\n options: (!active && this.getSharedOptions(options)) || options\n });\n }\n removeHoverStyle(element, datasetIndex, index) {\n this._setStyle(element, index, 'active', false);\n }\n setHoverStyle(element, datasetIndex, index) {\n this._setStyle(element, index, 'active', true);\n }\n _removeDatasetHoverStyle() {\n const element = this._cachedMeta.dataset;\n if (element) {\n this._setStyle(element, undefined, 'active', false);\n }\n }\n _setDatasetHoverStyle() {\n const element = this._cachedMeta.dataset;\n if (element) {\n this._setStyle(element, undefined, 'active', true);\n }\n }\n _resyncElements(resetNewElements) {\n const data = this._data;\n const elements = this._cachedMeta.data;\n for (const [method, arg1, arg2] of this._syncList) {\n this[method](arg1, arg2);\n }\n this._syncList = [];\n const numMeta = elements.length;\n const numData = data.length;\n const count = Math.min(numData, numMeta);\n if (count) {\n this.parse(0, count);\n }\n if (numData > numMeta) {\n this._insertElements(numMeta, numData - numMeta, resetNewElements);\n } else if (numData < numMeta) {\n this._removeElements(numData, numMeta - numData);\n }\n }\n _insertElements(start, count, resetNewElements = true) {\n const meta = this._cachedMeta;\n const data = meta.data;\n const end = start + count;\n let i;\n const move = (arr) => {\n arr.length += count;\n for (i = arr.length - 1; i >= end; i--) {\n arr[i] = arr[i - count];\n }\n };\n move(data);\n for (i = start; i < end; ++i) {\n data[i] = new this.dataElementType();\n }\n if (this._parsing) {\n move(meta._parsed);\n }\n this.parse(start, count);\n if (resetNewElements) {\n this.updateElements(data, start, count, 'reset');\n }\n }\n updateElements(element, start, count, mode) {}\n _removeElements(start, count) {\n const meta = this._cachedMeta;\n if (this._parsing) {\n const removed = meta._parsed.splice(start, count);\n if (meta._stacked) {\n clearStacks(meta, removed);\n }\n }\n meta.data.splice(start, count);\n }\n _sync(args) {\n if (this._parsing) {\n this._syncList.push(args);\n } else {\n const [method, arg1, arg2] = args;\n this[method](arg1, arg2);\n }\n this.chart._dataChanges.push([this.index, ...args]);\n }\n _onDataPush() {\n const count = arguments.length;\n this._sync(['_insertElements', this.getDataset().data.length - count, count]);\n }\n _onDataPop() {\n this._sync(['_removeElements', this._cachedMeta.data.length - 1, 1]);\n }\n _onDataShift() {\n this._sync(['_removeElements', 0, 1]);\n }\n _onDataSplice(start, count) {\n if (count) {\n this._sync(['_removeElements', start, count]);\n }\n const newCount = arguments.length - 2;\n if (newCount) {\n this._sync(['_insertElements', start, newCount]);\n }\n }\n _onDataUnshift() {\n this._sync(['_insertElements', 0, arguments.length]);\n }\n}\nDatasetController.defaults = {};\nDatasetController.prototype.datasetElementType = null;\nDatasetController.prototype.dataElementType = null;\n\nclass Element {\n constructor() {\n this.x = undefined;\n this.y = undefined;\n this.active = false;\n this.options = undefined;\n this.$animations = undefined;\n }\n tooltipPosition(useFinalPosition) {\n const {x, y} = this.getProps(['x', 'y'], useFinalPosition);\n return {x, y};\n }\n hasValue() {\n return isNumber(this.x) && isNumber(this.y);\n }\n getProps(props, final) {\n const anims = this.$animations;\n if (!final || !anims) {\n return this;\n }\n const ret = {};\n props.forEach(prop => {\n ret[prop] = anims[prop] && anims[prop].active() ? anims[prop]._to : this[prop];\n });\n return ret;\n }\n}\nElement.defaults = {};\nElement.defaultRoutes = undefined;\n\nconst formatters = {\n values(value) {\n return isArray(value) ? value : '' + value;\n },\n numeric(tickValue, index, ticks) {\n if (tickValue === 0) {\n return '0';\n }\n const locale = this.chart.options.locale;\n let notation;\n let delta = tickValue;\n if (ticks.length > 1) {\n const maxTick = Math.max(Math.abs(ticks[0].value), Math.abs(ticks[ticks.length - 1].value));\n if (maxTick < 1e-4 || maxTick > 1e+15) {\n notation = 'scientific';\n }\n delta = calculateDelta(tickValue, ticks);\n }\n const logDelta = log10(Math.abs(delta));\n const numDecimal = Math.max(Math.min(-1 * Math.floor(logDelta), 20), 0);\n const options = {notation, minimumFractionDigits: numDecimal, maximumFractionDigits: numDecimal};\n Object.assign(options, this.options.ticks.format);\n return formatNumber(tickValue, locale, options);\n },\n logarithmic(tickValue, index, ticks) {\n if (tickValue === 0) {\n return '0';\n }\n const remain = tickValue / (Math.pow(10, Math.floor(log10(tickValue))));\n if (remain === 1 || remain === 2 || remain === 5) {\n return formatters.numeric.call(this, tickValue, index, ticks);\n }\n return '';\n }\n};\nfunction calculateDelta(tickValue, ticks) {\n let delta = ticks.length > 3 ? ticks[2].value - ticks[1].value : ticks[1].value - ticks[0].value;\n if (Math.abs(delta) >= 1 && tickValue !== Math.floor(tickValue)) {\n delta = tickValue - Math.floor(tickValue);\n }\n return delta;\n}\nvar Ticks = {formatters};\n\ndefaults.set('scale', {\n display: true,\n offset: false,\n reverse: false,\n beginAtZero: false,\n bounds: 'ticks',\n grace: 0,\n grid: {\n display: true,\n lineWidth: 1,\n drawBorder: true,\n drawOnChartArea: true,\n drawTicks: true,\n tickLength: 8,\n tickWidth: (_ctx, options) => options.lineWidth,\n tickColor: (_ctx, options) => options.color,\n offset: false,\n borderDash: [],\n borderDashOffset: 0.0,\n borderWidth: 1\n },\n title: {\n display: false,\n text: '',\n padding: {\n top: 4,\n bottom: 4\n }\n },\n ticks: {\n minRotation: 0,\n maxRotation: 50,\n mirror: false,\n textStrokeWidth: 0,\n textStrokeColor: '',\n padding: 3,\n display: true,\n autoSkip: true,\n autoSkipPadding: 3,\n labelOffset: 0,\n callback: Ticks.formatters.values,\n minor: {},\n major: {},\n align: 'center',\n crossAlign: 'near',\n showLabelBackdrop: false,\n backdropColor: 'rgba(255, 255, 255, 0.75)',\n backdropPadding: 2,\n }\n});\ndefaults.route('scale.ticks', 'color', '', 'color');\ndefaults.route('scale.grid', 'color', '', 'borderColor');\ndefaults.route('scale.grid', 'borderColor', '', 'borderColor');\ndefaults.route('scale.title', 'color', '', 'color');\ndefaults.describe('scale', {\n _fallback: false,\n _scriptable: (name) => !name.startsWith('before') && !name.startsWith('after') && name !== 'callback' && name !== 'parser',\n _indexable: (name) => name !== 'borderDash' && name !== 'tickBorderDash',\n});\ndefaults.describe('scales', {\n _fallback: 'scale',\n});\ndefaults.describe('scale.ticks', {\n _scriptable: (name) => name !== 'backdropPadding' && name !== 'callback',\n _indexable: (name) => name !== 'backdropPadding',\n});\n\nfunction autoSkip(scale, ticks) {\n const tickOpts = scale.options.ticks;\n const ticksLimit = tickOpts.maxTicksLimit || determineMaxTicks(scale);\n const majorIndices = tickOpts.major.enabled ? getMajorIndices(ticks) : [];\n const numMajorIndices = majorIndices.length;\n const first = majorIndices[0];\n const last = majorIndices[numMajorIndices - 1];\n const newTicks = [];\n if (numMajorIndices > ticksLimit) {\n skipMajors(ticks, newTicks, majorIndices, numMajorIndices / ticksLimit);\n return newTicks;\n }\n const spacing = calculateSpacing(majorIndices, ticks, ticksLimit);\n if (numMajorIndices > 0) {\n let i, ilen;\n const avgMajorSpacing = numMajorIndices > 1 ? Math.round((last - first) / (numMajorIndices - 1)) : null;\n skip(ticks, newTicks, spacing, isNullOrUndef(avgMajorSpacing) ? 0 : first - avgMajorSpacing, first);\n for (i = 0, ilen = numMajorIndices - 1; i < ilen; i++) {\n skip(ticks, newTicks, spacing, majorIndices[i], majorIndices[i + 1]);\n }\n skip(ticks, newTicks, spacing, last, isNullOrUndef(avgMajorSpacing) ? ticks.length : last + avgMajorSpacing);\n return newTicks;\n }\n skip(ticks, newTicks, spacing);\n return newTicks;\n}\nfunction determineMaxTicks(scale) {\n const offset = scale.options.offset;\n const tickLength = scale._tickSize();\n const maxScale = scale._length / tickLength + (offset ? 0 : 1);\n const maxChart = scale._maxLength / tickLength;\n return Math.floor(Math.min(maxScale, maxChart));\n}\nfunction calculateSpacing(majorIndices, ticks, ticksLimit) {\n const evenMajorSpacing = getEvenSpacing(majorIndices);\n const spacing = ticks.length / ticksLimit;\n if (!evenMajorSpacing) {\n return Math.max(spacing, 1);\n }\n const factors = _factorize(evenMajorSpacing);\n for (let i = 0, ilen = factors.length - 1; i < ilen; i++) {\n const factor = factors[i];\n if (factor > spacing) {\n return factor;\n }\n }\n return Math.max(spacing, 1);\n}\nfunction getMajorIndices(ticks) {\n const result = [];\n let i, ilen;\n for (i = 0, ilen = ticks.length; i < ilen; i++) {\n if (ticks[i].major) {\n result.push(i);\n }\n }\n return result;\n}\nfunction skipMajors(ticks, newTicks, majorIndices, spacing) {\n let count = 0;\n let next = majorIndices[0];\n let i;\n spacing = Math.ceil(spacing);\n for (i = 0; i < ticks.length; i++) {\n if (i === next) {\n newTicks.push(ticks[i]);\n count++;\n next = majorIndices[count * spacing];\n }\n }\n}\nfunction skip(ticks, newTicks, spacing, majorStart, majorEnd) {\n const start = valueOrDefault(majorStart, 0);\n const end = Math.min(valueOrDefault(majorEnd, ticks.length), ticks.length);\n let count = 0;\n let length, i, next;\n spacing = Math.ceil(spacing);\n if (majorEnd) {\n length = majorEnd - majorStart;\n spacing = length / Math.floor(length / spacing);\n }\n next = start;\n while (next < 0) {\n count++;\n next = Math.round(start + count * spacing);\n }\n for (i = Math.max(start, 0); i < end; i++) {\n if (i === next) {\n newTicks.push(ticks[i]);\n count++;\n next = Math.round(start + count * spacing);\n }\n }\n}\nfunction getEvenSpacing(arr) {\n const len = arr.length;\n let i, diff;\n if (len < 2) {\n return false;\n }\n for (diff = arr[0], i = 1; i < len; ++i) {\n if (arr[i] - arr[i - 1] !== diff) {\n return false;\n }\n }\n return diff;\n}\n\nconst reverseAlign = (align) => align === 'left' ? 'right' : align === 'right' ? 'left' : align;\nconst offsetFromEdge = (scale, edge, offset) => edge === 'top' || edge === 'left' ? scale[edge] + offset : scale[edge] - offset;\nfunction sample(arr, numItems) {\n const result = [];\n const increment = arr.length / numItems;\n const len = arr.length;\n let i = 0;\n for (; i < len; i += increment) {\n result.push(arr[Math.floor(i)]);\n }\n return result;\n}\nfunction getPixelForGridLine(scale, index, offsetGridLines) {\n const length = scale.ticks.length;\n const validIndex = Math.min(index, length - 1);\n const start = scale._startPixel;\n const end = scale._endPixel;\n const epsilon = 1e-6;\n let lineValue = scale.getPixelForTick(validIndex);\n let offset;\n if (offsetGridLines) {\n if (length === 1) {\n offset = Math.max(lineValue - start, end - lineValue);\n } else if (index === 0) {\n offset = (scale.getPixelForTick(1) - lineValue) / 2;\n } else {\n offset = (lineValue - scale.getPixelForTick(validIndex - 1)) / 2;\n }\n lineValue += validIndex < index ? offset : -offset;\n if (lineValue < start - epsilon || lineValue > end + epsilon) {\n return;\n }\n }\n return lineValue;\n}\nfunction garbageCollect(caches, length) {\n each(caches, (cache) => {\n const gc = cache.gc;\n const gcLen = gc.length / 2;\n let i;\n if (gcLen > length) {\n for (i = 0; i < gcLen; ++i) {\n delete cache.data[gc[i]];\n }\n gc.splice(0, gcLen);\n }\n });\n}\nfunction getTickMarkLength(options) {\n return options.drawTicks ? options.tickLength : 0;\n}\nfunction getTitleHeight(options, fallback) {\n if (!options.display) {\n return 0;\n }\n const font = toFont(options.font, fallback);\n const padding = toPadding(options.padding);\n const lines = isArray(options.text) ? options.text.length : 1;\n return (lines * font.lineHeight) + padding.height;\n}\nfunction createScaleContext(parent, scale) {\n return createContext(parent, {\n scale,\n type: 'scale'\n });\n}\nfunction createTickContext(parent, index, tick) {\n return createContext(parent, {\n tick,\n index,\n type: 'tick'\n });\n}\nfunction titleAlign(align, position, reverse) {\n let ret = _toLeftRightCenter(align);\n if ((reverse && position !== 'right') || (!reverse && position === 'right')) {\n ret = reverseAlign(ret);\n }\n return ret;\n}\nfunction titleArgs(scale, offset, position, align) {\n const {top, left, bottom, right, chart} = scale;\n const {chartArea, scales} = chart;\n let rotation = 0;\n let maxWidth, titleX, titleY;\n const height = bottom - top;\n const width = right - left;\n if (scale.isHorizontal()) {\n titleX = _alignStartEnd(align, left, right);\n if (isObject(position)) {\n const positionAxisID = Object.keys(position)[0];\n const value = position[positionAxisID];\n titleY = scales[positionAxisID].getPixelForValue(value) + height - offset;\n } else if (position === 'center') {\n titleY = (chartArea.bottom + chartArea.top) / 2 + height - offset;\n } else {\n titleY = offsetFromEdge(scale, position, offset);\n }\n maxWidth = right - left;\n } else {\n if (isObject(position)) {\n const positionAxisID = Object.keys(position)[0];\n const value = position[positionAxisID];\n titleX = scales[positionAxisID].getPixelForValue(value) - width + offset;\n } else if (position === 'center') {\n titleX = (chartArea.left + chartArea.right) / 2 - width + offset;\n } else {\n titleX = offsetFromEdge(scale, position, offset);\n }\n titleY = _alignStartEnd(align, bottom, top);\n rotation = position === 'left' ? -HALF_PI : HALF_PI;\n }\n return {titleX, titleY, maxWidth, rotation};\n}\nclass Scale extends Element {\n constructor(cfg) {\n super();\n this.id = cfg.id;\n this.type = cfg.type;\n this.options = undefined;\n this.ctx = cfg.ctx;\n this.chart = cfg.chart;\n this.top = undefined;\n this.bottom = undefined;\n this.left = undefined;\n this.right = undefined;\n this.width = undefined;\n this.height = undefined;\n this._margins = {\n left: 0,\n right: 0,\n top: 0,\n bottom: 0\n };\n this.maxWidth = undefined;\n this.maxHeight = undefined;\n this.paddingTop = undefined;\n this.paddingBottom = undefined;\n this.paddingLeft = undefined;\n this.paddingRight = undefined;\n this.axis = undefined;\n this.labelRotation = undefined;\n this.min = undefined;\n this.max = undefined;\n this._range = undefined;\n this.ticks = [];\n this._gridLineItems = null;\n this._labelItems = null;\n this._labelSizes = null;\n this._length = 0;\n this._maxLength = 0;\n this._longestTextCache = {};\n this._startPixel = undefined;\n this._endPixel = undefined;\n this._reversePixels = false;\n this._userMax = undefined;\n this._userMin = undefined;\n this._suggestedMax = undefined;\n this._suggestedMin = undefined;\n this._ticksLength = 0;\n this._borderValue = 0;\n this._cache = {};\n this._dataLimitsCached = false;\n this.$context = undefined;\n }\n init(options) {\n this.options = options.setContext(this.getContext());\n this.axis = options.axis;\n this._userMin = this.parse(options.min);\n this._userMax = this.parse(options.max);\n this._suggestedMin = this.parse(options.suggestedMin);\n this._suggestedMax = this.parse(options.suggestedMax);\n }\n parse(raw, index) {\n return raw;\n }\n getUserBounds() {\n let {_userMin, _userMax, _suggestedMin, _suggestedMax} = this;\n _userMin = finiteOrDefault(_userMin, Number.POSITIVE_INFINITY);\n _userMax = finiteOrDefault(_userMax, Number.NEGATIVE_INFINITY);\n _suggestedMin = finiteOrDefault(_suggestedMin, Number.POSITIVE_INFINITY);\n _suggestedMax = finiteOrDefault(_suggestedMax, Number.NEGATIVE_INFINITY);\n return {\n min: finiteOrDefault(_userMin, _suggestedMin),\n max: finiteOrDefault(_userMax, _suggestedMax),\n minDefined: isNumberFinite(_userMin),\n maxDefined: isNumberFinite(_userMax)\n };\n }\n getMinMax(canStack) {\n let {min, max, minDefined, maxDefined} = this.getUserBounds();\n let range;\n if (minDefined && maxDefined) {\n return {min, max};\n }\n const metas = this.getMatchingVisibleMetas();\n for (let i = 0, ilen = metas.length; i < ilen; ++i) {\n range = metas[i].controller.getMinMax(this, canStack);\n if (!minDefined) {\n min = Math.min(min, range.min);\n }\n if (!maxDefined) {\n max = Math.max(max, range.max);\n }\n }\n min = maxDefined && min > max ? max : min;\n max = minDefined && min > max ? min : max;\n return {\n min: finiteOrDefault(min, finiteOrDefault(max, min)),\n max: finiteOrDefault(max, finiteOrDefault(min, max))\n };\n }\n getPadding() {\n return {\n left: this.paddingLeft || 0,\n top: this.paddingTop || 0,\n right: this.paddingRight || 0,\n bottom: this.paddingBottom || 0\n };\n }\n getTicks() {\n return this.ticks;\n }\n getLabels() {\n const data = this.chart.data;\n return this.options.labels || (this.isHorizontal() ? data.xLabels : data.yLabels) || data.labels || [];\n }\n beforeLayout() {\n this._cache = {};\n this._dataLimitsCached = false;\n }\n beforeUpdate() {\n callback(this.options.beforeUpdate, [this]);\n }\n update(maxWidth, maxHeight, margins) {\n const {beginAtZero, grace, ticks: tickOpts} = this.options;\n const sampleSize = tickOpts.sampleSize;\n this.beforeUpdate();\n this.maxWidth = maxWidth;\n this.maxHeight = maxHeight;\n this._margins = margins = Object.assign({\n left: 0,\n right: 0,\n top: 0,\n bottom: 0\n }, margins);\n this.ticks = null;\n this._labelSizes = null;\n this._gridLineItems = null;\n this._labelItems = null;\n this.beforeSetDimensions();\n this.setDimensions();\n this.afterSetDimensions();\n this._maxLength = this.isHorizontal()\n ? this.width + margins.left + margins.right\n : this.height + margins.top + margins.bottom;\n if (!this._dataLimitsCached) {\n this.beforeDataLimits();\n this.determineDataLimits();\n this.afterDataLimits();\n this._range = _addGrace(this, grace, beginAtZero);\n this._dataLimitsCached = true;\n }\n this.beforeBuildTicks();\n this.ticks = this.buildTicks() || [];\n this.afterBuildTicks();\n const samplingEnabled = sampleSize < this.ticks.length;\n this._convertTicksToLabels(samplingEnabled ? sample(this.ticks, sampleSize) : this.ticks);\n this.configure();\n this.beforeCalculateLabelRotation();\n this.calculateLabelRotation();\n this.afterCalculateLabelRotation();\n if (tickOpts.display && (tickOpts.autoSkip || tickOpts.source === 'auto')) {\n this.ticks = autoSkip(this, this.ticks);\n this._labelSizes = null;\n this.afterAutoSkip();\n }\n if (samplingEnabled) {\n this._convertTicksToLabels(this.ticks);\n }\n this.beforeFit();\n this.fit();\n this.afterFit();\n this.afterUpdate();\n }\n configure() {\n let reversePixels = this.options.reverse;\n let startPixel, endPixel;\n if (this.isHorizontal()) {\n startPixel = this.left;\n endPixel = this.right;\n } else {\n startPixel = this.top;\n endPixel = this.bottom;\n reversePixels = !reversePixels;\n }\n this._startPixel = startPixel;\n this._endPixel = endPixel;\n this._reversePixels = reversePixels;\n this._length = endPixel - startPixel;\n this._alignToPixels = this.options.alignToPixels;\n }\n afterUpdate() {\n callback(this.options.afterUpdate, [this]);\n }\n beforeSetDimensions() {\n callback(this.options.beforeSetDimensions, [this]);\n }\n setDimensions() {\n if (this.isHorizontal()) {\n this.width = this.maxWidth;\n this.left = 0;\n this.right = this.width;\n } else {\n this.height = this.maxHeight;\n this.top = 0;\n this.bottom = this.height;\n }\n this.paddingLeft = 0;\n this.paddingTop = 0;\n this.paddingRight = 0;\n this.paddingBottom = 0;\n }\n afterSetDimensions() {\n callback(this.options.afterSetDimensions, [this]);\n }\n _callHooks(name) {\n this.chart.notifyPlugins(name, this.getContext());\n callback(this.options[name], [this]);\n }\n beforeDataLimits() {\n this._callHooks('beforeDataLimits');\n }\n determineDataLimits() {}\n afterDataLimits() {\n this._callHooks('afterDataLimits');\n }\n beforeBuildTicks() {\n this._callHooks('beforeBuildTicks');\n }\n buildTicks() {\n return [];\n }\n afterBuildTicks() {\n this._callHooks('afterBuildTicks');\n }\n beforeTickToLabelConversion() {\n callback(this.options.beforeTickToLabelConversion, [this]);\n }\n generateTickLabels(ticks) {\n const tickOpts = this.options.ticks;\n let i, ilen, tick;\n for (i = 0, ilen = ticks.length; i < ilen; i++) {\n tick = ticks[i];\n tick.label = callback(tickOpts.callback, [tick.value, i, ticks], this);\n }\n }\n afterTickToLabelConversion() {\n callback(this.options.afterTickToLabelConversion, [this]);\n }\n beforeCalculateLabelRotation() {\n callback(this.options.beforeCalculateLabelRotation, [this]);\n }\n calculateLabelRotation() {\n const options = this.options;\n const tickOpts = options.ticks;\n const numTicks = this.ticks.length;\n const minRotation = tickOpts.minRotation || 0;\n const maxRotation = tickOpts.maxRotation;\n let labelRotation = minRotation;\n let tickWidth, maxHeight, maxLabelDiagonal;\n if (!this._isVisible() || !tickOpts.display || minRotation >= maxRotation || numTicks <= 1 || !this.isHorizontal()) {\n this.labelRotation = minRotation;\n return;\n }\n const labelSizes = this._getLabelSizes();\n const maxLabelWidth = labelSizes.widest.width;\n const maxLabelHeight = labelSizes.highest.height;\n const maxWidth = _limitValue(this.chart.width - maxLabelWidth, 0, this.maxWidth);\n tickWidth = options.offset ? this.maxWidth / numTicks : maxWidth / (numTicks - 1);\n if (maxLabelWidth + 6 > tickWidth) {\n tickWidth = maxWidth / (numTicks - (options.offset ? 0.5 : 1));\n maxHeight = this.maxHeight - getTickMarkLength(options.grid)\n\t\t\t\t- tickOpts.padding - getTitleHeight(options.title, this.chart.options.font);\n maxLabelDiagonal = Math.sqrt(maxLabelWidth * maxLabelWidth + maxLabelHeight * maxLabelHeight);\n labelRotation = toDegrees(Math.min(\n Math.asin(_limitValue((labelSizes.highest.height + 6) / tickWidth, -1, 1)),\n Math.asin(_limitValue(maxHeight / maxLabelDiagonal, -1, 1)) - Math.asin(_limitValue(maxLabelHeight / maxLabelDiagonal, -1, 1))\n ));\n labelRotation = Math.max(minRotation, Math.min(maxRotation, labelRotation));\n }\n this.labelRotation = labelRotation;\n }\n afterCalculateLabelRotation() {\n callback(this.options.afterCalculateLabelRotation, [this]);\n }\n afterAutoSkip() {}\n beforeFit() {\n callback(this.options.beforeFit, [this]);\n }\n fit() {\n const minSize = {\n width: 0,\n height: 0\n };\n const {chart, options: {ticks: tickOpts, title: titleOpts, grid: gridOpts}} = this;\n const display = this._isVisible();\n const isHorizontal = this.isHorizontal();\n if (display) {\n const titleHeight = getTitleHeight(titleOpts, chart.options.font);\n if (isHorizontal) {\n minSize.width = this.maxWidth;\n minSize.height = getTickMarkLength(gridOpts) + titleHeight;\n } else {\n minSize.height = this.maxHeight;\n minSize.width = getTickMarkLength(gridOpts) + titleHeight;\n }\n if (tickOpts.display && this.ticks.length) {\n const {first, last, widest, highest} = this._getLabelSizes();\n const tickPadding = tickOpts.padding * 2;\n const angleRadians = toRadians(this.labelRotation);\n const cos = Math.cos(angleRadians);\n const sin = Math.sin(angleRadians);\n if (isHorizontal) {\n const labelHeight = tickOpts.mirror ? 0 : sin * widest.width + cos * highest.height;\n minSize.height = Math.min(this.maxHeight, minSize.height + labelHeight + tickPadding);\n } else {\n const labelWidth = tickOpts.mirror ? 0 : cos * widest.width + sin * highest.height;\n minSize.width = Math.min(this.maxWidth, minSize.width + labelWidth + tickPadding);\n }\n this._calculatePadding(first, last, sin, cos);\n }\n }\n this._handleMargins();\n if (isHorizontal) {\n this.width = this._length = chart.width - this._margins.left - this._margins.right;\n this.height = minSize.height;\n } else {\n this.width = minSize.width;\n this.height = this._length = chart.height - this._margins.top - this._margins.bottom;\n }\n }\n _calculatePadding(first, last, sin, cos) {\n const {ticks: {align, padding}, position} = this.options;\n const isRotated = this.labelRotation !== 0;\n const labelsBelowTicks = position !== 'top' && this.axis === 'x';\n if (this.isHorizontal()) {\n const offsetLeft = this.getPixelForTick(0) - this.left;\n const offsetRight = this.right - this.getPixelForTick(this.ticks.length - 1);\n let paddingLeft = 0;\n let paddingRight = 0;\n if (isRotated) {\n if (labelsBelowTicks) {\n paddingLeft = cos * first.width;\n paddingRight = sin * last.height;\n } else {\n paddingLeft = sin * first.height;\n paddingRight = cos * last.width;\n }\n } else if (align === 'start') {\n paddingRight = last.width;\n } else if (align === 'end') {\n paddingLeft = first.width;\n } else if (align !== 'inner') {\n paddingLeft = first.width / 2;\n paddingRight = last.width / 2;\n }\n this.paddingLeft = Math.max((paddingLeft - offsetLeft + padding) * this.width / (this.width - offsetLeft), 0);\n this.paddingRight = Math.max((paddingRight - offsetRight + padding) * this.width / (this.width - offsetRight), 0);\n } else {\n let paddingTop = last.height / 2;\n let paddingBottom = first.height / 2;\n if (align === 'start') {\n paddingTop = 0;\n paddingBottom = first.height;\n } else if (align === 'end') {\n paddingTop = last.height;\n paddingBottom = 0;\n }\n this.paddingTop = paddingTop + padding;\n this.paddingBottom = paddingBottom + padding;\n }\n }\n _handleMargins() {\n if (this._margins) {\n this._margins.left = Math.max(this.paddingLeft, this._margins.left);\n this._margins.top = Math.max(this.paddingTop, this._margins.top);\n this._margins.right = Math.max(this.paddingRight, this._margins.right);\n this._margins.bottom = Math.max(this.paddingBottom, this._margins.bottom);\n }\n }\n afterFit() {\n callback(this.options.afterFit, [this]);\n }\n isHorizontal() {\n const {axis, position} = this.options;\n return position === 'top' || position === 'bottom' || axis === 'x';\n }\n isFullSize() {\n return this.options.fullSize;\n }\n _convertTicksToLabels(ticks) {\n this.beforeTickToLabelConversion();\n this.generateTickLabels(ticks);\n let i, ilen;\n for (i = 0, ilen = ticks.length; i < ilen; i++) {\n if (isNullOrUndef(ticks[i].label)) {\n ticks.splice(i, 1);\n ilen--;\n i--;\n }\n }\n this.afterTickToLabelConversion();\n }\n _getLabelSizes() {\n let labelSizes = this._labelSizes;\n if (!labelSizes) {\n const sampleSize = this.options.ticks.sampleSize;\n let ticks = this.ticks;\n if (sampleSize < ticks.length) {\n ticks = sample(ticks, sampleSize);\n }\n this._labelSizes = labelSizes = this._computeLabelSizes(ticks, ticks.length);\n }\n return labelSizes;\n }\n _computeLabelSizes(ticks, length) {\n const {ctx, _longestTextCache: caches} = this;\n const widths = [];\n const heights = [];\n let widestLabelSize = 0;\n let highestLabelSize = 0;\n let i, j, jlen, label, tickFont, fontString, cache, lineHeight, width, height, nestedLabel;\n for (i = 0; i < length; ++i) {\n label = ticks[i].label;\n tickFont = this._resolveTickFontOptions(i);\n ctx.font = fontString = tickFont.string;\n cache = caches[fontString] = caches[fontString] || {data: {}, gc: []};\n lineHeight = tickFont.lineHeight;\n width = height = 0;\n if (!isNullOrUndef(label) && !isArray(label)) {\n width = _measureText(ctx, cache.data, cache.gc, width, label);\n height = lineHeight;\n } else if (isArray(label)) {\n for (j = 0, jlen = label.length; j < jlen; ++j) {\n nestedLabel = label[j];\n if (!isNullOrUndef(nestedLabel) && !isArray(nestedLabel)) {\n width = _measureText(ctx, cache.data, cache.gc, width, nestedLabel);\n height += lineHeight;\n }\n }\n }\n widths.push(width);\n heights.push(height);\n widestLabelSize = Math.max(width, widestLabelSize);\n highestLabelSize = Math.max(height, highestLabelSize);\n }\n garbageCollect(caches, length);\n const widest = widths.indexOf(widestLabelSize);\n const highest = heights.indexOf(highestLabelSize);\n const valueAt = (idx) => ({width: widths[idx] || 0, height: heights[idx] || 0});\n return {\n first: valueAt(0),\n last: valueAt(length - 1),\n widest: valueAt(widest),\n highest: valueAt(highest),\n widths,\n heights,\n };\n }\n getLabelForValue(value) {\n return value;\n }\n getPixelForValue(value, index) {\n return NaN;\n }\n getValueForPixel(pixel) {}\n getPixelForTick(index) {\n const ticks = this.ticks;\n if (index < 0 || index > ticks.length - 1) {\n return null;\n }\n return this.getPixelForValue(ticks[index].value);\n }\n getPixelForDecimal(decimal) {\n if (this._reversePixels) {\n decimal = 1 - decimal;\n }\n const pixel = this._startPixel + decimal * this._length;\n return _int16Range(this._alignToPixels ? _alignPixel(this.chart, pixel, 0) : pixel);\n }\n getDecimalForPixel(pixel) {\n const decimal = (pixel - this._startPixel) / this._length;\n return this._reversePixels ? 1 - decimal : decimal;\n }\n getBasePixel() {\n return this.getPixelForValue(this.getBaseValue());\n }\n getBaseValue() {\n const {min, max} = this;\n return min < 0 && max < 0 ? max :\n min > 0 && max > 0 ? min :\n 0;\n }\n getContext(index) {\n const ticks = this.ticks || [];\n if (index >= 0 && index < ticks.length) {\n const tick = ticks[index];\n return tick.$context ||\n\t\t\t\t(tick.$context = createTickContext(this.getContext(), index, tick));\n }\n return this.$context ||\n\t\t\t(this.$context = createScaleContext(this.chart.getContext(), this));\n }\n _tickSize() {\n const optionTicks = this.options.ticks;\n const rot = toRadians(this.labelRotation);\n const cos = Math.abs(Math.cos(rot));\n const sin = Math.abs(Math.sin(rot));\n const labelSizes = this._getLabelSizes();\n const padding = optionTicks.autoSkipPadding || 0;\n const w = labelSizes ? labelSizes.widest.width + padding : 0;\n const h = labelSizes ? labelSizes.highest.height + padding : 0;\n return this.isHorizontal()\n ? h * cos > w * sin ? w / cos : h / sin\n : h * sin < w * cos ? h / cos : w / sin;\n }\n _isVisible() {\n const display = this.options.display;\n if (display !== 'auto') {\n return !!display;\n }\n return this.getMatchingVisibleMetas().length > 0;\n }\n _computeGridLineItems(chartArea) {\n const axis = this.axis;\n const chart = this.chart;\n const options = this.options;\n const {grid, position} = options;\n const offset = grid.offset;\n const isHorizontal = this.isHorizontal();\n const ticks = this.ticks;\n const ticksLength = ticks.length + (offset ? 1 : 0);\n const tl = getTickMarkLength(grid);\n const items = [];\n const borderOpts = grid.setContext(this.getContext());\n const axisWidth = borderOpts.drawBorder ? borderOpts.borderWidth : 0;\n const axisHalfWidth = axisWidth / 2;\n const alignBorderValue = function(pixel) {\n return _alignPixel(chart, pixel, axisWidth);\n };\n let borderValue, i, lineValue, alignedLineValue;\n let tx1, ty1, tx2, ty2, x1, y1, x2, y2;\n if (position === 'top') {\n borderValue = alignBorderValue(this.bottom);\n ty1 = this.bottom - tl;\n ty2 = borderValue - axisHalfWidth;\n y1 = alignBorderValue(chartArea.top) + axisHalfWidth;\n y2 = chartArea.bottom;\n } else if (position === 'bottom') {\n borderValue = alignBorderValue(this.top);\n y1 = chartArea.top;\n y2 = alignBorderValue(chartArea.bottom) - axisHalfWidth;\n ty1 = borderValue + axisHalfWidth;\n ty2 = this.top + tl;\n } else if (position === 'left') {\n borderValue = alignBorderValue(this.right);\n tx1 = this.right - tl;\n tx2 = borderValue - axisHalfWidth;\n x1 = alignBorderValue(chartArea.left) + axisHalfWidth;\n x2 = chartArea.right;\n } else if (position === 'right') {\n borderValue = alignBorderValue(this.left);\n x1 = chartArea.left;\n x2 = alignBorderValue(chartArea.right) - axisHalfWidth;\n tx1 = borderValue + axisHalfWidth;\n tx2 = this.left + tl;\n } else if (axis === 'x') {\n if (position === 'center') {\n borderValue = alignBorderValue((chartArea.top + chartArea.bottom) / 2 + 0.5);\n } else if (isObject(position)) {\n const positionAxisID = Object.keys(position)[0];\n const value = position[positionAxisID];\n borderValue = alignBorderValue(this.chart.scales[positionAxisID].getPixelForValue(value));\n }\n y1 = chartArea.top;\n y2 = chartArea.bottom;\n ty1 = borderValue + axisHalfWidth;\n ty2 = ty1 + tl;\n } else if (axis === 'y') {\n if (position === 'center') {\n borderValue = alignBorderValue((chartArea.left + chartArea.right) / 2);\n } else if (isObject(position)) {\n const positionAxisID = Object.keys(position)[0];\n const value = position[positionAxisID];\n borderValue = alignBorderValue(this.chart.scales[positionAxisID].getPixelForValue(value));\n }\n tx1 = borderValue - axisHalfWidth;\n tx2 = tx1 - tl;\n x1 = chartArea.left;\n x2 = chartArea.right;\n }\n const limit = valueOrDefault(options.ticks.maxTicksLimit, ticksLength);\n const step = Math.max(1, Math.ceil(ticksLength / limit));\n for (i = 0; i < ticksLength; i += step) {\n const optsAtIndex = grid.setContext(this.getContext(i));\n const lineWidth = optsAtIndex.lineWidth;\n const lineColor = optsAtIndex.color;\n const borderDash = grid.borderDash || [];\n const borderDashOffset = optsAtIndex.borderDashOffset;\n const tickWidth = optsAtIndex.tickWidth;\n const tickColor = optsAtIndex.tickColor;\n const tickBorderDash = optsAtIndex.tickBorderDash || [];\n const tickBorderDashOffset = optsAtIndex.tickBorderDashOffset;\n lineValue = getPixelForGridLine(this, i, offset);\n if (lineValue === undefined) {\n continue;\n }\n alignedLineValue = _alignPixel(chart, lineValue, lineWidth);\n if (isHorizontal) {\n tx1 = tx2 = x1 = x2 = alignedLineValue;\n } else {\n ty1 = ty2 = y1 = y2 = alignedLineValue;\n }\n items.push({\n tx1,\n ty1,\n tx2,\n ty2,\n x1,\n y1,\n x2,\n y2,\n width: lineWidth,\n color: lineColor,\n borderDash,\n borderDashOffset,\n tickWidth,\n tickColor,\n tickBorderDash,\n tickBorderDashOffset,\n });\n }\n this._ticksLength = ticksLength;\n this._borderValue = borderValue;\n return items;\n }\n _computeLabelItems(chartArea) {\n const axis = this.axis;\n const options = this.options;\n const {position, ticks: optionTicks} = options;\n const isHorizontal = this.isHorizontal();\n const ticks = this.ticks;\n const {align, crossAlign, padding, mirror} = optionTicks;\n const tl = getTickMarkLength(options.grid);\n const tickAndPadding = tl + padding;\n const hTickAndPadding = mirror ? -padding : tickAndPadding;\n const rotation = -toRadians(this.labelRotation);\n const items = [];\n let i, ilen, tick, label, x, y, textAlign, pixel, font, lineHeight, lineCount, textOffset;\n let textBaseline = 'middle';\n if (position === 'top') {\n y = this.bottom - hTickAndPadding;\n textAlign = this._getXAxisLabelAlignment();\n } else if (position === 'bottom') {\n y = this.top + hTickAndPadding;\n textAlign = this._getXAxisLabelAlignment();\n } else if (position === 'left') {\n const ret = this._getYAxisLabelAlignment(tl);\n textAlign = ret.textAlign;\n x = ret.x;\n } else if (position === 'right') {\n const ret = this._getYAxisLabelAlignment(tl);\n textAlign = ret.textAlign;\n x = ret.x;\n } else if (axis === 'x') {\n if (position === 'center') {\n y = ((chartArea.top + chartArea.bottom) / 2) + tickAndPadding;\n } else if (isObject(position)) {\n const positionAxisID = Object.keys(position)[0];\n const value = position[positionAxisID];\n y = this.chart.scales[positionAxisID].getPixelForValue(value) + tickAndPadding;\n }\n textAlign = this._getXAxisLabelAlignment();\n } else if (axis === 'y') {\n if (position === 'center') {\n x = ((chartArea.left + chartArea.right) / 2) - tickAndPadding;\n } else if (isObject(position)) {\n const positionAxisID = Object.keys(position)[0];\n const value = position[positionAxisID];\n x = this.chart.scales[positionAxisID].getPixelForValue(value);\n }\n textAlign = this._getYAxisLabelAlignment(tl).textAlign;\n }\n if (axis === 'y') {\n if (align === 'start') {\n textBaseline = 'top';\n } else if (align === 'end') {\n textBaseline = 'bottom';\n }\n }\n const labelSizes = this._getLabelSizes();\n for (i = 0, ilen = ticks.length; i < ilen; ++i) {\n tick = ticks[i];\n label = tick.label;\n const optsAtIndex = optionTicks.setContext(this.getContext(i));\n pixel = this.getPixelForTick(i) + optionTicks.labelOffset;\n font = this._resolveTickFontOptions(i);\n lineHeight = font.lineHeight;\n lineCount = isArray(label) ? label.length : 1;\n const halfCount = lineCount / 2;\n const color = optsAtIndex.color;\n const strokeColor = optsAtIndex.textStrokeColor;\n const strokeWidth = optsAtIndex.textStrokeWidth;\n let tickTextAlign = textAlign;\n if (isHorizontal) {\n x = pixel;\n if (textAlign === 'inner') {\n if (i === ilen - 1) {\n tickTextAlign = !this.options.reverse ? 'right' : 'left';\n } else if (i === 0) {\n tickTextAlign = !this.options.reverse ? 'left' : 'right';\n } else {\n tickTextAlign = 'center';\n }\n }\n if (position === 'top') {\n if (crossAlign === 'near' || rotation !== 0) {\n textOffset = -lineCount * lineHeight + lineHeight / 2;\n } else if (crossAlign === 'center') {\n textOffset = -labelSizes.highest.height / 2 - halfCount * lineHeight + lineHeight;\n } else {\n textOffset = -labelSizes.highest.height + lineHeight / 2;\n }\n } else {\n if (crossAlign === 'near' || rotation !== 0) {\n textOffset = lineHeight / 2;\n } else if (crossAlign === 'center') {\n textOffset = labelSizes.highest.height / 2 - halfCount * lineHeight;\n } else {\n textOffset = labelSizes.highest.height - lineCount * lineHeight;\n }\n }\n if (mirror) {\n textOffset *= -1;\n }\n } else {\n y = pixel;\n textOffset = (1 - lineCount) * lineHeight / 2;\n }\n let backdrop;\n if (optsAtIndex.showLabelBackdrop) {\n const labelPadding = toPadding(optsAtIndex.backdropPadding);\n const height = labelSizes.heights[i];\n const width = labelSizes.widths[i];\n let top = y + textOffset - labelPadding.top;\n let left = x - labelPadding.left;\n switch (textBaseline) {\n case 'middle':\n top -= height / 2;\n break;\n case 'bottom':\n top -= height;\n break;\n }\n switch (textAlign) {\n case 'center':\n left -= width / 2;\n break;\n case 'right':\n left -= width;\n break;\n }\n backdrop = {\n left,\n top,\n width: width + labelPadding.width,\n height: height + labelPadding.height,\n color: optsAtIndex.backdropColor,\n };\n }\n items.push({\n rotation,\n label,\n font,\n color,\n strokeColor,\n strokeWidth,\n textOffset,\n textAlign: tickTextAlign,\n textBaseline,\n translation: [x, y],\n backdrop,\n });\n }\n return items;\n }\n _getXAxisLabelAlignment() {\n const {position, ticks} = this.options;\n const rotation = -toRadians(this.labelRotation);\n if (rotation) {\n return position === 'top' ? 'left' : 'right';\n }\n let align = 'center';\n if (ticks.align === 'start') {\n align = 'left';\n } else if (ticks.align === 'end') {\n align = 'right';\n } else if (ticks.align === 'inner') {\n align = 'inner';\n }\n return align;\n }\n _getYAxisLabelAlignment(tl) {\n const {position, ticks: {crossAlign, mirror, padding}} = this.options;\n const labelSizes = this._getLabelSizes();\n const tickAndPadding = tl + padding;\n const widest = labelSizes.widest.width;\n let textAlign;\n let x;\n if (position === 'left') {\n if (mirror) {\n x = this.right + padding;\n if (crossAlign === 'near') {\n textAlign = 'left';\n } else if (crossAlign === 'center') {\n textAlign = 'center';\n x += (widest / 2);\n } else {\n textAlign = 'right';\n x += widest;\n }\n } else {\n x = this.right - tickAndPadding;\n if (crossAlign === 'near') {\n textAlign = 'right';\n } else if (crossAlign === 'center') {\n textAlign = 'center';\n x -= (widest / 2);\n } else {\n textAlign = 'left';\n x = this.left;\n }\n }\n } else if (position === 'right') {\n if (mirror) {\n x = this.left + padding;\n if (crossAlign === 'near') {\n textAlign = 'right';\n } else if (crossAlign === 'center') {\n textAlign = 'center';\n x -= (widest / 2);\n } else {\n textAlign = 'left';\n x -= widest;\n }\n } else {\n x = this.left + tickAndPadding;\n if (crossAlign === 'near') {\n textAlign = 'left';\n } else if (crossAlign === 'center') {\n textAlign = 'center';\n x += widest / 2;\n } else {\n textAlign = 'right';\n x = this.right;\n }\n }\n } else {\n textAlign = 'right';\n }\n return {textAlign, x};\n }\n _computeLabelArea() {\n if (this.options.ticks.mirror) {\n return;\n }\n const chart = this.chart;\n const position = this.options.position;\n if (position === 'left' || position === 'right') {\n return {top: 0, left: this.left, bottom: chart.height, right: this.right};\n } if (position === 'top' || position === 'bottom') {\n return {top: this.top, left: 0, bottom: this.bottom, right: chart.width};\n }\n }\n drawBackground() {\n const {ctx, options: {backgroundColor}, left, top, width, height} = this;\n if (backgroundColor) {\n ctx.save();\n ctx.fillStyle = backgroundColor;\n ctx.fillRect(left, top, width, height);\n ctx.restore();\n }\n }\n getLineWidthForValue(value) {\n const grid = this.options.grid;\n if (!this._isVisible() || !grid.display) {\n return 0;\n }\n const ticks = this.ticks;\n const index = ticks.findIndex(t => t.value === value);\n if (index >= 0) {\n const opts = grid.setContext(this.getContext(index));\n return opts.lineWidth;\n }\n return 0;\n }\n drawGrid(chartArea) {\n const grid = this.options.grid;\n const ctx = this.ctx;\n const items = this._gridLineItems || (this._gridLineItems = this._computeGridLineItems(chartArea));\n let i, ilen;\n const drawLine = (p1, p2, style) => {\n if (!style.width || !style.color) {\n return;\n }\n ctx.save();\n ctx.lineWidth = style.width;\n ctx.strokeStyle = style.color;\n ctx.setLineDash(style.borderDash || []);\n ctx.lineDashOffset = style.borderDashOffset;\n ctx.beginPath();\n ctx.moveTo(p1.x, p1.y);\n ctx.lineTo(p2.x, p2.y);\n ctx.stroke();\n ctx.restore();\n };\n if (grid.display) {\n for (i = 0, ilen = items.length; i < ilen; ++i) {\n const item = items[i];\n if (grid.drawOnChartArea) {\n drawLine(\n {x: item.x1, y: item.y1},\n {x: item.x2, y: item.y2},\n item\n );\n }\n if (grid.drawTicks) {\n drawLine(\n {x: item.tx1, y: item.ty1},\n {x: item.tx2, y: item.ty2},\n {\n color: item.tickColor,\n width: item.tickWidth,\n borderDash: item.tickBorderDash,\n borderDashOffset: item.tickBorderDashOffset\n }\n );\n }\n }\n }\n }\n drawBorder() {\n const {chart, ctx, options: {grid}} = this;\n const borderOpts = grid.setContext(this.getContext());\n const axisWidth = grid.drawBorder ? borderOpts.borderWidth : 0;\n if (!axisWidth) {\n return;\n }\n const lastLineWidth = grid.setContext(this.getContext(0)).lineWidth;\n const borderValue = this._borderValue;\n let x1, x2, y1, y2;\n if (this.isHorizontal()) {\n x1 = _alignPixel(chart, this.left, axisWidth) - axisWidth / 2;\n x2 = _alignPixel(chart, this.right, lastLineWidth) + lastLineWidth / 2;\n y1 = y2 = borderValue;\n } else {\n y1 = _alignPixel(chart, this.top, axisWidth) - axisWidth / 2;\n y2 = _alignPixel(chart, this.bottom, lastLineWidth) + lastLineWidth / 2;\n x1 = x2 = borderValue;\n }\n ctx.save();\n ctx.lineWidth = borderOpts.borderWidth;\n ctx.strokeStyle = borderOpts.borderColor;\n ctx.beginPath();\n ctx.moveTo(x1, y1);\n ctx.lineTo(x2, y2);\n ctx.stroke();\n ctx.restore();\n }\n drawLabels(chartArea) {\n const optionTicks = this.options.ticks;\n if (!optionTicks.display) {\n return;\n }\n const ctx = this.ctx;\n const area = this._computeLabelArea();\n if (area) {\n clipArea(ctx, area);\n }\n const items = this._labelItems || (this._labelItems = this._computeLabelItems(chartArea));\n let i, ilen;\n for (i = 0, ilen = items.length; i < ilen; ++i) {\n const item = items[i];\n const tickFont = item.font;\n const label = item.label;\n if (item.backdrop) {\n ctx.fillStyle = item.backdrop.color;\n ctx.fillRect(item.backdrop.left, item.backdrop.top, item.backdrop.width, item.backdrop.height);\n }\n let y = item.textOffset;\n renderText(ctx, label, 0, y, tickFont, item);\n }\n if (area) {\n unclipArea(ctx);\n }\n }\n drawTitle() {\n const {ctx, options: {position, title, reverse}} = this;\n if (!title.display) {\n return;\n }\n const font = toFont(title.font);\n const padding = toPadding(title.padding);\n const align = title.align;\n let offset = font.lineHeight / 2;\n if (position === 'bottom' || position === 'center' || isObject(position)) {\n offset += padding.bottom;\n if (isArray(title.text)) {\n offset += font.lineHeight * (title.text.length - 1);\n }\n } else {\n offset += padding.top;\n }\n const {titleX, titleY, maxWidth, rotation} = titleArgs(this, offset, position, align);\n renderText(ctx, title.text, 0, 0, font, {\n color: title.color,\n maxWidth,\n rotation,\n textAlign: titleAlign(align, position, reverse),\n textBaseline: 'middle',\n translation: [titleX, titleY],\n });\n }\n draw(chartArea) {\n if (!this._isVisible()) {\n return;\n }\n this.drawBackground();\n this.drawGrid(chartArea);\n this.drawBorder();\n this.drawTitle();\n this.drawLabels(chartArea);\n }\n _layers() {\n const opts = this.options;\n const tz = opts.ticks && opts.ticks.z || 0;\n const gz = valueOrDefault(opts.grid && opts.grid.z, -1);\n if (!this._isVisible() || this.draw !== Scale.prototype.draw) {\n return [{\n z: tz,\n draw: (chartArea) => {\n this.draw(chartArea);\n }\n }];\n }\n return [{\n z: gz,\n draw: (chartArea) => {\n this.drawBackground();\n this.drawGrid(chartArea);\n this.drawTitle();\n }\n }, {\n z: gz + 1,\n draw: () => {\n this.drawBorder();\n }\n }, {\n z: tz,\n draw: (chartArea) => {\n this.drawLabels(chartArea);\n }\n }];\n }\n getMatchingVisibleMetas(type) {\n const metas = this.chart.getSortedVisibleDatasetMetas();\n const axisID = this.axis + 'AxisID';\n const result = [];\n let i, ilen;\n for (i = 0, ilen = metas.length; i < ilen; ++i) {\n const meta = metas[i];\n if (meta[axisID] === this.id && (!type || meta.type === type)) {\n result.push(meta);\n }\n }\n return result;\n }\n _resolveTickFontOptions(index) {\n const opts = this.options.ticks.setContext(this.getContext(index));\n return toFont(opts.font);\n }\n _maxDigits() {\n const fontSize = this._resolveTickFontOptions(0).lineHeight;\n return (this.isHorizontal() ? this.width : this.height) / fontSize;\n }\n}\n\nclass TypedRegistry {\n constructor(type, scope, override) {\n this.type = type;\n this.scope = scope;\n this.override = override;\n this.items = Object.create(null);\n }\n isForType(type) {\n return Object.prototype.isPrototypeOf.call(this.type.prototype, type.prototype);\n }\n register(item) {\n const proto = Object.getPrototypeOf(item);\n let parentScope;\n if (isIChartComponent(proto)) {\n parentScope = this.register(proto);\n }\n const items = this.items;\n const id = item.id;\n const scope = this.scope + '.' + id;\n if (!id) {\n throw new Error('class does not have id: ' + item);\n }\n if (id in items) {\n return scope;\n }\n items[id] = item;\n registerDefaults(item, scope, parentScope);\n if (this.override) {\n defaults.override(item.id, item.overrides);\n }\n return scope;\n }\n get(id) {\n return this.items[id];\n }\n unregister(item) {\n const items = this.items;\n const id = item.id;\n const scope = this.scope;\n if (id in items) {\n delete items[id];\n }\n if (scope && id in defaults[scope]) {\n delete defaults[scope][id];\n if (this.override) {\n delete overrides[id];\n }\n }\n }\n}\nfunction registerDefaults(item, scope, parentScope) {\n const itemDefaults = merge(Object.create(null), [\n parentScope ? defaults.get(parentScope) : {},\n defaults.get(scope),\n item.defaults\n ]);\n defaults.set(scope, itemDefaults);\n if (item.defaultRoutes) {\n routeDefaults(scope, item.defaultRoutes);\n }\n if (item.descriptors) {\n defaults.describe(scope, item.descriptors);\n }\n}\nfunction routeDefaults(scope, routes) {\n Object.keys(routes).forEach(property => {\n const propertyParts = property.split('.');\n const sourceName = propertyParts.pop();\n const sourceScope = [scope].concat(propertyParts).join('.');\n const parts = routes[property].split('.');\n const targetName = parts.pop();\n const targetScope = parts.join('.');\n defaults.route(sourceScope, sourceName, targetScope, targetName);\n });\n}\nfunction isIChartComponent(proto) {\n return 'id' in proto && 'defaults' in proto;\n}\n\nclass Registry {\n constructor() {\n this.controllers = new TypedRegistry(DatasetController, 'datasets', true);\n this.elements = new TypedRegistry(Element, 'elements');\n this.plugins = new TypedRegistry(Object, 'plugins');\n this.scales = new TypedRegistry(Scale, 'scales');\n this._typedRegistries = [this.controllers, this.scales, this.elements];\n }\n add(...args) {\n this._each('register', args);\n }\n remove(...args) {\n this._each('unregister', args);\n }\n addControllers(...args) {\n this._each('register', args, this.controllers);\n }\n addElements(...args) {\n this._each('register', args, this.elements);\n }\n addPlugins(...args) {\n this._each('register', args, this.plugins);\n }\n addScales(...args) {\n this._each('register', args, this.scales);\n }\n getController(id) {\n return this._get(id, this.controllers, 'controller');\n }\n getElement(id) {\n return this._get(id, this.elements, 'element');\n }\n getPlugin(id) {\n return this._get(id, this.plugins, 'plugin');\n }\n getScale(id) {\n return this._get(id, this.scales, 'scale');\n }\n removeControllers(...args) {\n this._each('unregister', args, this.controllers);\n }\n removeElements(...args) {\n this._each('unregister', args, this.elements);\n }\n removePlugins(...args) {\n this._each('unregister', args, this.plugins);\n }\n removeScales(...args) {\n this._each('unregister', args, this.scales);\n }\n _each(method, args, typedRegistry) {\n [...args].forEach(arg => {\n const reg = typedRegistry || this._getRegistryForType(arg);\n if (typedRegistry || reg.isForType(arg) || (reg === this.plugins && arg.id)) {\n this._exec(method, reg, arg);\n } else {\n each(arg, item => {\n const itemReg = typedRegistry || this._getRegistryForType(item);\n this._exec(method, itemReg, item);\n });\n }\n });\n }\n _exec(method, registry, component) {\n const camelMethod = _capitalize(method);\n callback(component['before' + camelMethod], [], component);\n registry[method](component);\n callback(component['after' + camelMethod], [], component);\n }\n _getRegistryForType(type) {\n for (let i = 0; i < this._typedRegistries.length; i++) {\n const reg = this._typedRegistries[i];\n if (reg.isForType(type)) {\n return reg;\n }\n }\n return this.plugins;\n }\n _get(id, typedRegistry, type) {\n const item = typedRegistry.get(id);\n if (item === undefined) {\n throw new Error('\"' + id + '\" is not a registered ' + type + '.');\n }\n return item;\n }\n}\nvar registry = new Registry();\n\nclass PluginService {\n constructor() {\n this._init = [];\n }\n notify(chart, hook, args, filter) {\n if (hook === 'beforeInit') {\n this._init = this._createDescriptors(chart, true);\n this._notify(this._init, chart, 'install');\n }\n const descriptors = filter ? this._descriptors(chart).filter(filter) : this._descriptors(chart);\n const result = this._notify(descriptors, chart, hook, args);\n if (hook === 'afterDestroy') {\n this._notify(descriptors, chart, 'stop');\n this._notify(this._init, chart, 'uninstall');\n }\n return result;\n }\n _notify(descriptors, chart, hook, args) {\n args = args || {};\n for (const descriptor of descriptors) {\n const plugin = descriptor.plugin;\n const method = plugin[hook];\n const params = [chart, args, descriptor.options];\n if (callback(method, params, plugin) === false && args.cancelable) {\n return false;\n }\n }\n return true;\n }\n invalidate() {\n if (!isNullOrUndef(this._cache)) {\n this._oldCache = this._cache;\n this._cache = undefined;\n }\n }\n _descriptors(chart) {\n if (this._cache) {\n return this._cache;\n }\n const descriptors = this._cache = this._createDescriptors(chart);\n this._notifyStateChanges(chart);\n return descriptors;\n }\n _createDescriptors(chart, all) {\n const config = chart && chart.config;\n const options = valueOrDefault(config.options && config.options.plugins, {});\n const plugins = allPlugins(config);\n return options === false && !all ? [] : createDescriptors(chart, plugins, options, all);\n }\n _notifyStateChanges(chart) {\n const previousDescriptors = this._oldCache || [];\n const descriptors = this._cache;\n const diff = (a, b) => a.filter(x => !b.some(y => x.plugin.id === y.plugin.id));\n this._notify(diff(previousDescriptors, descriptors), chart, 'stop');\n this._notify(diff(descriptors, previousDescriptors), chart, 'start');\n }\n}\nfunction allPlugins(config) {\n const plugins = [];\n const keys = Object.keys(registry.plugins.items);\n for (let i = 0; i < keys.length; i++) {\n plugins.push(registry.getPlugin(keys[i]));\n }\n const local = config.plugins || [];\n for (let i = 0; i < local.length; i++) {\n const plugin = local[i];\n if (plugins.indexOf(plugin) === -1) {\n plugins.push(plugin);\n }\n }\n return plugins;\n}\nfunction getOpts(options, all) {\n if (!all && options === false) {\n return null;\n }\n if (options === true) {\n return {};\n }\n return options;\n}\nfunction createDescriptors(chart, plugins, options, all) {\n const result = [];\n const context = chart.getContext();\n for (let i = 0; i < plugins.length; i++) {\n const plugin = plugins[i];\n const id = plugin.id;\n const opts = getOpts(options[id], all);\n if (opts === null) {\n continue;\n }\n result.push({\n plugin,\n options: pluginOpts(chart.config, plugin, opts, context)\n });\n }\n return result;\n}\nfunction pluginOpts(config, plugin, opts, context) {\n const keys = config.pluginScopeKeys(plugin);\n const scopes = config.getOptionScopes(opts, keys);\n return config.createResolver(scopes, context, [''], {scriptable: false, indexable: false, allKeys: true});\n}\n\nfunction getIndexAxis(type, options) {\n const datasetDefaults = defaults.datasets[type] || {};\n const datasetOptions = (options.datasets || {})[type] || {};\n return datasetOptions.indexAxis || options.indexAxis || datasetDefaults.indexAxis || 'x';\n}\nfunction getAxisFromDefaultScaleID(id, indexAxis) {\n let axis = id;\n if (id === '_index_') {\n axis = indexAxis;\n } else if (id === '_value_') {\n axis = indexAxis === 'x' ? 'y' : 'x';\n }\n return axis;\n}\nfunction getDefaultScaleIDFromAxis(axis, indexAxis) {\n return axis === indexAxis ? '_index_' : '_value_';\n}\nfunction axisFromPosition(position) {\n if (position === 'top' || position === 'bottom') {\n return 'x';\n }\n if (position === 'left' || position === 'right') {\n return 'y';\n }\n}\nfunction determineAxis(id, scaleOptions) {\n if (id === 'x' || id === 'y') {\n return id;\n }\n return scaleOptions.axis || axisFromPosition(scaleOptions.position) || id.charAt(0).toLowerCase();\n}\nfunction mergeScaleConfig(config, options) {\n const chartDefaults = overrides[config.type] || {scales: {}};\n const configScales = options.scales || {};\n const chartIndexAxis = getIndexAxis(config.type, options);\n const firstIDs = Object.create(null);\n const scales = Object.create(null);\n Object.keys(configScales).forEach(id => {\n const scaleConf = configScales[id];\n if (!isObject(scaleConf)) {\n return console.error(`Invalid scale configuration for scale: ${id}`);\n }\n if (scaleConf._proxy) {\n return console.warn(`Ignoring resolver passed as options for scale: ${id}`);\n }\n const axis = determineAxis(id, scaleConf);\n const defaultId = getDefaultScaleIDFromAxis(axis, chartIndexAxis);\n const defaultScaleOptions = chartDefaults.scales || {};\n firstIDs[axis] = firstIDs[axis] || id;\n scales[id] = mergeIf(Object.create(null), [{axis}, scaleConf, defaultScaleOptions[axis], defaultScaleOptions[defaultId]]);\n });\n config.data.datasets.forEach(dataset => {\n const type = dataset.type || config.type;\n const indexAxis = dataset.indexAxis || getIndexAxis(type, options);\n const datasetDefaults = overrides[type] || {};\n const defaultScaleOptions = datasetDefaults.scales || {};\n Object.keys(defaultScaleOptions).forEach(defaultID => {\n const axis = getAxisFromDefaultScaleID(defaultID, indexAxis);\n const id = dataset[axis + 'AxisID'] || firstIDs[axis] || axis;\n scales[id] = scales[id] || Object.create(null);\n mergeIf(scales[id], [{axis}, configScales[id], defaultScaleOptions[defaultID]]);\n });\n });\n Object.keys(scales).forEach(key => {\n const scale = scales[key];\n mergeIf(scale, [defaults.scales[scale.type], defaults.scale]);\n });\n return scales;\n}\nfunction initOptions(config) {\n const options = config.options || (config.options = {});\n options.plugins = valueOrDefault(options.plugins, {});\n options.scales = mergeScaleConfig(config, options);\n}\nfunction initData(data) {\n data = data || {};\n data.datasets = data.datasets || [];\n data.labels = data.labels || [];\n return data;\n}\nfunction initConfig(config) {\n config = config || {};\n config.data = initData(config.data);\n initOptions(config);\n return config;\n}\nconst keyCache = new Map();\nconst keysCached = new Set();\nfunction cachedKeys(cacheKey, generate) {\n let keys = keyCache.get(cacheKey);\n if (!keys) {\n keys = generate();\n keyCache.set(cacheKey, keys);\n keysCached.add(keys);\n }\n return keys;\n}\nconst addIfFound = (set, obj, key) => {\n const opts = resolveObjectKey(obj, key);\n if (opts !== undefined) {\n set.add(opts);\n }\n};\nclass Config {\n constructor(config) {\n this._config = initConfig(config);\n this._scopeCache = new Map();\n this._resolverCache = new Map();\n }\n get platform() {\n return this._config.platform;\n }\n get type() {\n return this._config.type;\n }\n set type(type) {\n this._config.type = type;\n }\n get data() {\n return this._config.data;\n }\n set data(data) {\n this._config.data = initData(data);\n }\n get options() {\n return this._config.options;\n }\n set options(options) {\n this._config.options = options;\n }\n get plugins() {\n return this._config.plugins;\n }\n update() {\n const config = this._config;\n this.clearCache();\n initOptions(config);\n }\n clearCache() {\n this._scopeCache.clear();\n this._resolverCache.clear();\n }\n datasetScopeKeys(datasetType) {\n return cachedKeys(datasetType,\n () => [[\n `datasets.${datasetType}`,\n ''\n ]]);\n }\n datasetAnimationScopeKeys(datasetType, transition) {\n return cachedKeys(`${datasetType}.transition.${transition}`,\n () => [\n [\n `datasets.${datasetType}.transitions.${transition}`,\n `transitions.${transition}`,\n ],\n [\n `datasets.${datasetType}`,\n ''\n ]\n ]);\n }\n datasetElementScopeKeys(datasetType, elementType) {\n return cachedKeys(`${datasetType}-${elementType}`,\n () => [[\n `datasets.${datasetType}.elements.${elementType}`,\n `datasets.${datasetType}`,\n `elements.${elementType}`,\n ''\n ]]);\n }\n pluginScopeKeys(plugin) {\n const id = plugin.id;\n const type = this.type;\n return cachedKeys(`${type}-plugin-${id}`,\n () => [[\n `plugins.${id}`,\n ...plugin.additionalOptionScopes || [],\n ]]);\n }\n _cachedScopes(mainScope, resetCache) {\n const _scopeCache = this._scopeCache;\n let cache = _scopeCache.get(mainScope);\n if (!cache || resetCache) {\n cache = new Map();\n _scopeCache.set(mainScope, cache);\n }\n return cache;\n }\n getOptionScopes(mainScope, keyLists, resetCache) {\n const {options, type} = this;\n const cache = this._cachedScopes(mainScope, resetCache);\n const cached = cache.get(keyLists);\n if (cached) {\n return cached;\n }\n const scopes = new Set();\n keyLists.forEach(keys => {\n if (mainScope) {\n scopes.add(mainScope);\n keys.forEach(key => addIfFound(scopes, mainScope, key));\n }\n keys.forEach(key => addIfFound(scopes, options, key));\n keys.forEach(key => addIfFound(scopes, overrides[type] || {}, key));\n keys.forEach(key => addIfFound(scopes, defaults, key));\n keys.forEach(key => addIfFound(scopes, descriptors, key));\n });\n const array = Array.from(scopes);\n if (array.length === 0) {\n array.push(Object.create(null));\n }\n if (keysCached.has(keyLists)) {\n cache.set(keyLists, array);\n }\n return array;\n }\n chartOptionScopes() {\n const {options, type} = this;\n return [\n options,\n overrides[type] || {},\n defaults.datasets[type] || {},\n {type},\n defaults,\n descriptors\n ];\n }\n resolveNamedOptions(scopes, names, context, prefixes = ['']) {\n const result = {$shared: true};\n const {resolver, subPrefixes} = getResolver(this._resolverCache, scopes, prefixes);\n let options = resolver;\n if (needContext(resolver, names)) {\n result.$shared = false;\n context = isFunction(context) ? context() : context;\n const subResolver = this.createResolver(scopes, context, subPrefixes);\n options = _attachContext(resolver, context, subResolver);\n }\n for (const prop of names) {\n result[prop] = options[prop];\n }\n return result;\n }\n createResolver(scopes, context, prefixes = [''], descriptorDefaults) {\n const {resolver} = getResolver(this._resolverCache, scopes, prefixes);\n return isObject(context)\n ? _attachContext(resolver, context, undefined, descriptorDefaults)\n : resolver;\n }\n}\nfunction getResolver(resolverCache, scopes, prefixes) {\n let cache = resolverCache.get(scopes);\n if (!cache) {\n cache = new Map();\n resolverCache.set(scopes, cache);\n }\n const cacheKey = prefixes.join();\n let cached = cache.get(cacheKey);\n if (!cached) {\n const resolver = _createResolver(scopes, prefixes);\n cached = {\n resolver,\n subPrefixes: prefixes.filter(p => !p.toLowerCase().includes('hover'))\n };\n cache.set(cacheKey, cached);\n }\n return cached;\n}\nconst hasFunction = value => isObject(value)\n && Object.getOwnPropertyNames(value).reduce((acc, key) => acc || isFunction(value[key]), false);\nfunction needContext(proxy, names) {\n const {isScriptable, isIndexable} = _descriptors(proxy);\n for (const prop of names) {\n const scriptable = isScriptable(prop);\n const indexable = isIndexable(prop);\n const value = (indexable || scriptable) && proxy[prop];\n if ((scriptable && (isFunction(value) || hasFunction(value)))\n || (indexable && isArray(value))) {\n return true;\n }\n }\n return false;\n}\n\nvar version = \"3.8.0\";\n\nconst KNOWN_POSITIONS = ['top', 'bottom', 'left', 'right', 'chartArea'];\nfunction positionIsHorizontal(position, axis) {\n return position === 'top' || position === 'bottom' || (KNOWN_POSITIONS.indexOf(position) === -1 && axis === 'x');\n}\nfunction compare2Level(l1, l2) {\n return function(a, b) {\n return a[l1] === b[l1]\n ? a[l2] - b[l2]\n : a[l1] - b[l1];\n };\n}\nfunction onAnimationsComplete(context) {\n const chart = context.chart;\n const animationOptions = chart.options.animation;\n chart.notifyPlugins('afterRender');\n callback(animationOptions && animationOptions.onComplete, [context], chart);\n}\nfunction onAnimationProgress(context) {\n const chart = context.chart;\n const animationOptions = chart.options.animation;\n callback(animationOptions && animationOptions.onProgress, [context], chart);\n}\nfunction getCanvas(item) {\n if (_isDomSupported() && typeof item === 'string') {\n item = document.getElementById(item);\n } else if (item && item.length) {\n item = item[0];\n }\n if (item && item.canvas) {\n item = item.canvas;\n }\n return item;\n}\nconst instances = {};\nconst getChart = (key) => {\n const canvas = getCanvas(key);\n return Object.values(instances).filter((c) => c.canvas === canvas).pop();\n};\nfunction moveNumericKeys(obj, start, move) {\n const keys = Object.keys(obj);\n for (const key of keys) {\n const intKey = +key;\n if (intKey >= start) {\n const value = obj[key];\n delete obj[key];\n if (move > 0 || intKey > start) {\n obj[intKey + move] = value;\n }\n }\n }\n}\nfunction determineLastEvent(e, lastEvent, inChartArea, isClick) {\n if (!inChartArea || e.type === 'mouseout') {\n return null;\n }\n if (isClick) {\n return lastEvent;\n }\n return e;\n}\nclass Chart {\n constructor(item, userConfig) {\n const config = this.config = new Config(userConfig);\n const initialCanvas = getCanvas(item);\n const existingChart = getChart(initialCanvas);\n if (existingChart) {\n throw new Error(\n 'Canvas is already in use. Chart with ID \\'' + existingChart.id + '\\'' +\n\t\t\t\t' must be destroyed before the canvas can be reused.'\n );\n }\n const options = config.createResolver(config.chartOptionScopes(), this.getContext());\n this.platform = new (config.platform || _detectPlatform(initialCanvas))();\n this.platform.updateConfig(config);\n const context = this.platform.acquireContext(initialCanvas, options.aspectRatio);\n const canvas = context && context.canvas;\n const height = canvas && canvas.height;\n const width = canvas && canvas.width;\n this.id = uid();\n this.ctx = context;\n this.canvas = canvas;\n this.width = width;\n this.height = height;\n this._options = options;\n this._aspectRatio = this.aspectRatio;\n this._layers = [];\n this._metasets = [];\n this._stacks = undefined;\n this.boxes = [];\n this.currentDevicePixelRatio = undefined;\n this.chartArea = undefined;\n this._active = [];\n this._lastEvent = undefined;\n this._listeners = {};\n this._responsiveListeners = undefined;\n this._sortedMetasets = [];\n this.scales = {};\n this._plugins = new PluginService();\n this.$proxies = {};\n this._hiddenIndices = {};\n this.attached = false;\n this._animationsDisabled = undefined;\n this.$context = undefined;\n this._doResize = debounce(mode => this.update(mode), options.resizeDelay || 0);\n this._dataChanges = [];\n instances[this.id] = this;\n if (!context || !canvas) {\n console.error(\"Failed to create chart: can't acquire context from the given item\");\n return;\n }\n animator.listen(this, 'complete', onAnimationsComplete);\n animator.listen(this, 'progress', onAnimationProgress);\n this._initialize();\n if (this.attached) {\n this.update();\n }\n }\n get aspectRatio() {\n const {options: {aspectRatio, maintainAspectRatio}, width, height, _aspectRatio} = this;\n if (!isNullOrUndef(aspectRatio)) {\n return aspectRatio;\n }\n if (maintainAspectRatio && _aspectRatio) {\n return _aspectRatio;\n }\n return height ? width / height : null;\n }\n get data() {\n return this.config.data;\n }\n set data(data) {\n this.config.data = data;\n }\n get options() {\n return this._options;\n }\n set options(options) {\n this.config.options = options;\n }\n _initialize() {\n this.notifyPlugins('beforeInit');\n if (this.options.responsive) {\n this.resize();\n } else {\n retinaScale(this, this.options.devicePixelRatio);\n }\n this.bindEvents();\n this.notifyPlugins('afterInit');\n return this;\n }\n clear() {\n clearCanvas(this.canvas, this.ctx);\n return this;\n }\n stop() {\n animator.stop(this);\n return this;\n }\n resize(width, height) {\n if (!animator.running(this)) {\n this._resize(width, height);\n } else {\n this._resizeBeforeDraw = {width, height};\n }\n }\n _resize(width, height) {\n const options = this.options;\n const canvas = this.canvas;\n const aspectRatio = options.maintainAspectRatio && this.aspectRatio;\n const newSize = this.platform.getMaximumSize(canvas, width, height, aspectRatio);\n const newRatio = options.devicePixelRatio || this.platform.getDevicePixelRatio();\n const mode = this.width ? 'resize' : 'attach';\n this.width = newSize.width;\n this.height = newSize.height;\n this._aspectRatio = this.aspectRatio;\n if (!retinaScale(this, newRatio, true)) {\n return;\n }\n this.notifyPlugins('resize', {size: newSize});\n callback(options.onResize, [this, newSize], this);\n if (this.attached) {\n if (this._doResize(mode)) {\n this.render();\n }\n }\n }\n ensureScalesHaveIDs() {\n const options = this.options;\n const scalesOptions = options.scales || {};\n each(scalesOptions, (axisOptions, axisID) => {\n axisOptions.id = axisID;\n });\n }\n buildOrUpdateScales() {\n const options = this.options;\n const scaleOpts = options.scales;\n const scales = this.scales;\n const updated = Object.keys(scales).reduce((obj, id) => {\n obj[id] = false;\n return obj;\n }, {});\n let items = [];\n if (scaleOpts) {\n items = items.concat(\n Object.keys(scaleOpts).map((id) => {\n const scaleOptions = scaleOpts[id];\n const axis = determineAxis(id, scaleOptions);\n const isRadial = axis === 'r';\n const isHorizontal = axis === 'x';\n return {\n options: scaleOptions,\n dposition: isRadial ? 'chartArea' : isHorizontal ? 'bottom' : 'left',\n dtype: isRadial ? 'radialLinear' : isHorizontal ? 'category' : 'linear'\n };\n })\n );\n }\n each(items, (item) => {\n const scaleOptions = item.options;\n const id = scaleOptions.id;\n const axis = determineAxis(id, scaleOptions);\n const scaleType = valueOrDefault(scaleOptions.type, item.dtype);\n if (scaleOptions.position === undefined || positionIsHorizontal(scaleOptions.position, axis) !== positionIsHorizontal(item.dposition)) {\n scaleOptions.position = item.dposition;\n }\n updated[id] = true;\n let scale = null;\n if (id in scales && scales[id].type === scaleType) {\n scale = scales[id];\n } else {\n const scaleClass = registry.getScale(scaleType);\n scale = new scaleClass({\n id,\n type: scaleType,\n ctx: this.ctx,\n chart: this\n });\n scales[scale.id] = scale;\n }\n scale.init(scaleOptions, options);\n });\n each(updated, (hasUpdated, id) => {\n if (!hasUpdated) {\n delete scales[id];\n }\n });\n each(scales, (scale) => {\n layouts.configure(this, scale, scale.options);\n layouts.addBox(this, scale);\n });\n }\n _updateMetasets() {\n const metasets = this._metasets;\n const numData = this.data.datasets.length;\n const numMeta = metasets.length;\n metasets.sort((a, b) => a.index - b.index);\n if (numMeta > numData) {\n for (let i = numData; i < numMeta; ++i) {\n this._destroyDatasetMeta(i);\n }\n metasets.splice(numData, numMeta - numData);\n }\n this._sortedMetasets = metasets.slice(0).sort(compare2Level('order', 'index'));\n }\n _removeUnreferencedMetasets() {\n const {_metasets: metasets, data: {datasets}} = this;\n if (metasets.length > datasets.length) {\n delete this._stacks;\n }\n metasets.forEach((meta, index) => {\n if (datasets.filter(x => x === meta._dataset).length === 0) {\n this._destroyDatasetMeta(index);\n }\n });\n }\n buildOrUpdateControllers() {\n const newControllers = [];\n const datasets = this.data.datasets;\n let i, ilen;\n this._removeUnreferencedMetasets();\n for (i = 0, ilen = datasets.length; i < ilen; i++) {\n const dataset = datasets[i];\n let meta = this.getDatasetMeta(i);\n const type = dataset.type || this.config.type;\n if (meta.type && meta.type !== type) {\n this._destroyDatasetMeta(i);\n meta = this.getDatasetMeta(i);\n }\n meta.type = type;\n meta.indexAxis = dataset.indexAxis || getIndexAxis(type, this.options);\n meta.order = dataset.order || 0;\n meta.index = i;\n meta.label = '' + dataset.label;\n meta.visible = this.isDatasetVisible(i);\n if (meta.controller) {\n meta.controller.updateIndex(i);\n meta.controller.linkScales();\n } else {\n const ControllerClass = registry.getController(type);\n const {datasetElementType, dataElementType} = defaults.datasets[type];\n Object.assign(ControllerClass.prototype, {\n dataElementType: registry.getElement(dataElementType),\n datasetElementType: datasetElementType && registry.getElement(datasetElementType)\n });\n meta.controller = new ControllerClass(this, i);\n newControllers.push(meta.controller);\n }\n }\n this._updateMetasets();\n return newControllers;\n }\n _resetElements() {\n each(this.data.datasets, (dataset, datasetIndex) => {\n this.getDatasetMeta(datasetIndex).controller.reset();\n }, this);\n }\n reset() {\n this._resetElements();\n this.notifyPlugins('reset');\n }\n update(mode) {\n const config = this.config;\n config.update();\n const options = this._options = config.createResolver(config.chartOptionScopes(), this.getContext());\n const animsDisabled = this._animationsDisabled = !options.animation;\n this._updateScales();\n this._checkEventBindings();\n this._updateHiddenIndices();\n this._plugins.invalidate();\n if (this.notifyPlugins('beforeUpdate', {mode, cancelable: true}) === false) {\n return;\n }\n const newControllers = this.buildOrUpdateControllers();\n this.notifyPlugins('beforeElementsUpdate');\n let minPadding = 0;\n for (let i = 0, ilen = this.data.datasets.length; i < ilen; i++) {\n const {controller} = this.getDatasetMeta(i);\n const reset = !animsDisabled && newControllers.indexOf(controller) === -1;\n controller.buildOrUpdateElements(reset);\n minPadding = Math.max(+controller.getMaxOverflow(), minPadding);\n }\n minPadding = this._minPadding = options.layout.autoPadding ? minPadding : 0;\n this._updateLayout(minPadding);\n if (!animsDisabled) {\n each(newControllers, (controller) => {\n controller.reset();\n });\n }\n this._updateDatasets(mode);\n this.notifyPlugins('afterUpdate', {mode});\n this._layers.sort(compare2Level('z', '_idx'));\n const {_active, _lastEvent} = this;\n if (_lastEvent) {\n this._eventHandler(_lastEvent, true);\n } else if (_active.length) {\n this._updateHoverStyles(_active, _active, true);\n }\n this.render();\n }\n _updateScales() {\n each(this.scales, (scale) => {\n layouts.removeBox(this, scale);\n });\n this.ensureScalesHaveIDs();\n this.buildOrUpdateScales();\n }\n _checkEventBindings() {\n const options = this.options;\n const existingEvents = new Set(Object.keys(this._listeners));\n const newEvents = new Set(options.events);\n if (!setsEqual(existingEvents, newEvents) || !!this._responsiveListeners !== options.responsive) {\n this.unbindEvents();\n this.bindEvents();\n }\n }\n _updateHiddenIndices() {\n const {_hiddenIndices} = this;\n const changes = this._getUniformDataChanges() || [];\n for (const {method, start, count} of changes) {\n const move = method === '_removeElements' ? -count : count;\n moveNumericKeys(_hiddenIndices, start, move);\n }\n }\n _getUniformDataChanges() {\n const _dataChanges = this._dataChanges;\n if (!_dataChanges || !_dataChanges.length) {\n return;\n }\n this._dataChanges = [];\n const datasetCount = this.data.datasets.length;\n const makeSet = (idx) => new Set(\n _dataChanges\n .filter(c => c[0] === idx)\n .map((c, i) => i + ',' + c.splice(1).join(','))\n );\n const changeSet = makeSet(0);\n for (let i = 1; i < datasetCount; i++) {\n if (!setsEqual(changeSet, makeSet(i))) {\n return;\n }\n }\n return Array.from(changeSet)\n .map(c => c.split(','))\n .map(a => ({method: a[1], start: +a[2], count: +a[3]}));\n }\n _updateLayout(minPadding) {\n if (this.notifyPlugins('beforeLayout', {cancelable: true}) === false) {\n return;\n }\n layouts.update(this, this.width, this.height, minPadding);\n const area = this.chartArea;\n const noArea = area.width <= 0 || area.height <= 0;\n this._layers = [];\n each(this.boxes, (box) => {\n if (noArea && box.position === 'chartArea') {\n return;\n }\n if (box.configure) {\n box.configure();\n }\n this._layers.push(...box._layers());\n }, this);\n this._layers.forEach((item, index) => {\n item._idx = index;\n });\n this.notifyPlugins('afterLayout');\n }\n _updateDatasets(mode) {\n if (this.notifyPlugins('beforeDatasetsUpdate', {mode, cancelable: true}) === false) {\n return;\n }\n for (let i = 0, ilen = this.data.datasets.length; i < ilen; ++i) {\n this.getDatasetMeta(i).controller.configure();\n }\n for (let i = 0, ilen = this.data.datasets.length; i < ilen; ++i) {\n this._updateDataset(i, isFunction(mode) ? mode({datasetIndex: i}) : mode);\n }\n this.notifyPlugins('afterDatasetsUpdate', {mode});\n }\n _updateDataset(index, mode) {\n const meta = this.getDatasetMeta(index);\n const args = {meta, index, mode, cancelable: true};\n if (this.notifyPlugins('beforeDatasetUpdate', args) === false) {\n return;\n }\n meta.controller._update(mode);\n args.cancelable = false;\n this.notifyPlugins('afterDatasetUpdate', args);\n }\n render() {\n if (this.notifyPlugins('beforeRender', {cancelable: true}) === false) {\n return;\n }\n if (animator.has(this)) {\n if (this.attached && !animator.running(this)) {\n animator.start(this);\n }\n } else {\n this.draw();\n onAnimationsComplete({chart: this});\n }\n }\n draw() {\n let i;\n if (this._resizeBeforeDraw) {\n const {width, height} = this._resizeBeforeDraw;\n this._resize(width, height);\n this._resizeBeforeDraw = null;\n }\n this.clear();\n if (this.width <= 0 || this.height <= 0) {\n return;\n }\n if (this.notifyPlugins('beforeDraw', {cancelable: true}) === false) {\n return;\n }\n const layers = this._layers;\n for (i = 0; i < layers.length && layers[i].z <= 0; ++i) {\n layers[i].draw(this.chartArea);\n }\n this._drawDatasets();\n for (; i < layers.length; ++i) {\n layers[i].draw(this.chartArea);\n }\n this.notifyPlugins('afterDraw');\n }\n _getSortedDatasetMetas(filterVisible) {\n const metasets = this._sortedMetasets;\n const result = [];\n let i, ilen;\n for (i = 0, ilen = metasets.length; i < ilen; ++i) {\n const meta = metasets[i];\n if (!filterVisible || meta.visible) {\n result.push(meta);\n }\n }\n return result;\n }\n getSortedVisibleDatasetMetas() {\n return this._getSortedDatasetMetas(true);\n }\n _drawDatasets() {\n if (this.notifyPlugins('beforeDatasetsDraw', {cancelable: true}) === false) {\n return;\n }\n const metasets = this.getSortedVisibleDatasetMetas();\n for (let i = metasets.length - 1; i >= 0; --i) {\n this._drawDataset(metasets[i]);\n }\n this.notifyPlugins('afterDatasetsDraw');\n }\n _drawDataset(meta) {\n const ctx = this.ctx;\n const clip = meta._clip;\n const useClip = !clip.disabled;\n const area = this.chartArea;\n const args = {\n meta,\n index: meta.index,\n cancelable: true\n };\n if (this.notifyPlugins('beforeDatasetDraw', args) === false) {\n return;\n }\n if (useClip) {\n clipArea(ctx, {\n left: clip.left === false ? 0 : area.left - clip.left,\n right: clip.right === false ? this.width : area.right + clip.right,\n top: clip.top === false ? 0 : area.top - clip.top,\n bottom: clip.bottom === false ? this.height : area.bottom + clip.bottom\n });\n }\n meta.controller.draw();\n if (useClip) {\n unclipArea(ctx);\n }\n args.cancelable = false;\n this.notifyPlugins('afterDatasetDraw', args);\n }\n isPointInArea(point) {\n return _isPointInArea(point, this.chartArea, this._minPadding);\n }\n getElementsAtEventForMode(e, mode, options, useFinalPosition) {\n const method = Interaction.modes[mode];\n if (typeof method === 'function') {\n return method(this, e, options, useFinalPosition);\n }\n return [];\n }\n getDatasetMeta(datasetIndex) {\n const dataset = this.data.datasets[datasetIndex];\n const metasets = this._metasets;\n let meta = metasets.filter(x => x && x._dataset === dataset).pop();\n if (!meta) {\n meta = {\n type: null,\n data: [],\n dataset: null,\n controller: null,\n hidden: null,\n xAxisID: null,\n yAxisID: null,\n order: dataset && dataset.order || 0,\n index: datasetIndex,\n _dataset: dataset,\n _parsed: [],\n _sorted: false\n };\n metasets.push(meta);\n }\n return meta;\n }\n getContext() {\n return this.$context || (this.$context = createContext(null, {chart: this, type: 'chart'}));\n }\n getVisibleDatasetCount() {\n return this.getSortedVisibleDatasetMetas().length;\n }\n isDatasetVisible(datasetIndex) {\n const dataset = this.data.datasets[datasetIndex];\n if (!dataset) {\n return false;\n }\n const meta = this.getDatasetMeta(datasetIndex);\n return typeof meta.hidden === 'boolean' ? !meta.hidden : !dataset.hidden;\n }\n setDatasetVisibility(datasetIndex, visible) {\n const meta = this.getDatasetMeta(datasetIndex);\n meta.hidden = !visible;\n }\n toggleDataVisibility(index) {\n this._hiddenIndices[index] = !this._hiddenIndices[index];\n }\n getDataVisibility(index) {\n return !this._hiddenIndices[index];\n }\n _updateVisibility(datasetIndex, dataIndex, visible) {\n const mode = visible ? 'show' : 'hide';\n const meta = this.getDatasetMeta(datasetIndex);\n const anims = meta.controller._resolveAnimations(undefined, mode);\n if (defined(dataIndex)) {\n meta.data[dataIndex].hidden = !visible;\n this.update();\n } else {\n this.setDatasetVisibility(datasetIndex, visible);\n anims.update(meta, {visible});\n this.update((ctx) => ctx.datasetIndex === datasetIndex ? mode : undefined);\n }\n }\n hide(datasetIndex, dataIndex) {\n this._updateVisibility(datasetIndex, dataIndex, false);\n }\n show(datasetIndex, dataIndex) {\n this._updateVisibility(datasetIndex, dataIndex, true);\n }\n _destroyDatasetMeta(datasetIndex) {\n const meta = this._metasets[datasetIndex];\n if (meta && meta.controller) {\n meta.controller._destroy();\n }\n delete this._metasets[datasetIndex];\n }\n _stop() {\n let i, ilen;\n this.stop();\n animator.remove(this);\n for (i = 0, ilen = this.data.datasets.length; i < ilen; ++i) {\n this._destroyDatasetMeta(i);\n }\n }\n destroy() {\n this.notifyPlugins('beforeDestroy');\n const {canvas, ctx} = this;\n this._stop();\n this.config.clearCache();\n if (canvas) {\n this.unbindEvents();\n clearCanvas(canvas, ctx);\n this.platform.releaseContext(ctx);\n this.canvas = null;\n this.ctx = null;\n }\n this.notifyPlugins('destroy');\n delete instances[this.id];\n this.notifyPlugins('afterDestroy');\n }\n toBase64Image(...args) {\n return this.canvas.toDataURL(...args);\n }\n bindEvents() {\n this.bindUserEvents();\n if (this.options.responsive) {\n this.bindResponsiveEvents();\n } else {\n this.attached = true;\n }\n }\n bindUserEvents() {\n const listeners = this._listeners;\n const platform = this.platform;\n const _add = (type, listener) => {\n platform.addEventListener(this, type, listener);\n listeners[type] = listener;\n };\n const listener = (e, x, y) => {\n e.offsetX = x;\n e.offsetY = y;\n this._eventHandler(e);\n };\n each(this.options.events, (type) => _add(type, listener));\n }\n bindResponsiveEvents() {\n if (!this._responsiveListeners) {\n this._responsiveListeners = {};\n }\n const listeners = this._responsiveListeners;\n const platform = this.platform;\n const _add = (type, listener) => {\n platform.addEventListener(this, type, listener);\n listeners[type] = listener;\n };\n const _remove = (type, listener) => {\n if (listeners[type]) {\n platform.removeEventListener(this, type, listener);\n delete listeners[type];\n }\n };\n const listener = (width, height) => {\n if (this.canvas) {\n this.resize(width, height);\n }\n };\n let detached;\n const attached = () => {\n _remove('attach', attached);\n this.attached = true;\n this.resize();\n _add('resize', listener);\n _add('detach', detached);\n };\n detached = () => {\n this.attached = false;\n _remove('resize', listener);\n this._stop();\n this._resize(0, 0);\n _add('attach', attached);\n };\n if (platform.isAttached(this.canvas)) {\n attached();\n } else {\n detached();\n }\n }\n unbindEvents() {\n each(this._listeners, (listener, type) => {\n this.platform.removeEventListener(this, type, listener);\n });\n this._listeners = {};\n each(this._responsiveListeners, (listener, type) => {\n this.platform.removeEventListener(this, type, listener);\n });\n this._responsiveListeners = undefined;\n }\n updateHoverStyle(items, mode, enabled) {\n const prefix = enabled ? 'set' : 'remove';\n let meta, item, i, ilen;\n if (mode === 'dataset') {\n meta = this.getDatasetMeta(items[0].datasetIndex);\n meta.controller['_' + prefix + 'DatasetHoverStyle']();\n }\n for (i = 0, ilen = items.length; i < ilen; ++i) {\n item = items[i];\n const controller = item && this.getDatasetMeta(item.datasetIndex).controller;\n if (controller) {\n controller[prefix + 'HoverStyle'](item.element, item.datasetIndex, item.index);\n }\n }\n }\n getActiveElements() {\n return this._active || [];\n }\n setActiveElements(activeElements) {\n const lastActive = this._active || [];\n const active = activeElements.map(({datasetIndex, index}) => {\n const meta = this.getDatasetMeta(datasetIndex);\n if (!meta) {\n throw new Error('No dataset found at index ' + datasetIndex);\n }\n return {\n datasetIndex,\n element: meta.data[index],\n index,\n };\n });\n const changed = !_elementsEqual(active, lastActive);\n if (changed) {\n this._active = active;\n this._lastEvent = null;\n this._updateHoverStyles(active, lastActive);\n }\n }\n notifyPlugins(hook, args, filter) {\n return this._plugins.notify(this, hook, args, filter);\n }\n _updateHoverStyles(active, lastActive, replay) {\n const hoverOptions = this.options.hover;\n const diff = (a, b) => a.filter(x => !b.some(y => x.datasetIndex === y.datasetIndex && x.index === y.index));\n const deactivated = diff(lastActive, active);\n const activated = replay ? active : diff(active, lastActive);\n if (deactivated.length) {\n this.updateHoverStyle(deactivated, hoverOptions.mode, false);\n }\n if (activated.length && hoverOptions.mode) {\n this.updateHoverStyle(activated, hoverOptions.mode, true);\n }\n }\n _eventHandler(e, replay) {\n const args = {\n event: e,\n replay,\n cancelable: true,\n inChartArea: this.isPointInArea(e)\n };\n const eventFilter = (plugin) => (plugin.options.events || this.options.events).includes(e.native.type);\n if (this.notifyPlugins('beforeEvent', args, eventFilter) === false) {\n return;\n }\n const changed = this._handleEvent(e, replay, args.inChartArea);\n args.cancelable = false;\n this.notifyPlugins('afterEvent', args, eventFilter);\n if (changed || args.changed) {\n this.render();\n }\n return this;\n }\n _handleEvent(e, replay, inChartArea) {\n const {_active: lastActive = [], options} = this;\n const useFinalPosition = replay;\n const active = this._getActiveElements(e, lastActive, inChartArea, useFinalPosition);\n const isClick = _isClickEvent(e);\n const lastEvent = determineLastEvent(e, this._lastEvent, inChartArea, isClick);\n if (inChartArea) {\n this._lastEvent = null;\n callback(options.onHover, [e, active, this], this);\n if (isClick) {\n callback(options.onClick, [e, active, this], this);\n }\n }\n const changed = !_elementsEqual(active, lastActive);\n if (changed || replay) {\n this._active = active;\n this._updateHoverStyles(active, lastActive, replay);\n }\n this._lastEvent = lastEvent;\n return changed;\n }\n _getActiveElements(e, lastActive, inChartArea, useFinalPosition) {\n if (e.type === 'mouseout') {\n return [];\n }\n if (!inChartArea) {\n return lastActive;\n }\n const hoverOptions = this.options.hover;\n return this.getElementsAtEventForMode(e, hoverOptions.mode, hoverOptions, useFinalPosition);\n }\n}\nconst invalidatePlugins = () => each(Chart.instances, (chart) => chart._plugins.invalidate());\nconst enumerable = true;\nObject.defineProperties(Chart, {\n defaults: {\n enumerable,\n value: defaults\n },\n instances: {\n enumerable,\n value: instances\n },\n overrides: {\n enumerable,\n value: overrides\n },\n registry: {\n enumerable,\n value: registry\n },\n version: {\n enumerable,\n value: version\n },\n getChart: {\n enumerable,\n value: getChart\n },\n register: {\n enumerable,\n value: (...items) => {\n registry.add(...items);\n invalidatePlugins();\n }\n },\n unregister: {\n enumerable,\n value: (...items) => {\n registry.remove(...items);\n invalidatePlugins();\n }\n }\n});\n\nfunction abstract() {\n throw new Error('This method is not implemented: Check that a complete date adapter is provided.');\n}\nclass DateAdapter {\n constructor(options) {\n this.options = options || {};\n }\n formats() {\n return abstract();\n }\n parse(value, format) {\n return abstract();\n }\n format(timestamp, format) {\n return abstract();\n }\n add(timestamp, amount, unit) {\n return abstract();\n }\n diff(a, b, unit) {\n return abstract();\n }\n startOf(timestamp, unit, weekday) {\n return abstract();\n }\n endOf(timestamp, unit) {\n return abstract();\n }\n}\nDateAdapter.override = function(members) {\n Object.assign(DateAdapter.prototype, members);\n};\nvar _adapters = {\n _date: DateAdapter\n};\n\nfunction getAllScaleValues(scale, type) {\n if (!scale._cache.$bar) {\n const visibleMetas = scale.getMatchingVisibleMetas(type);\n let values = [];\n for (let i = 0, ilen = visibleMetas.length; i < ilen; i++) {\n values = values.concat(visibleMetas[i].controller.getAllParsedValues(scale));\n }\n scale._cache.$bar = _arrayUnique(values.sort((a, b) => a - b));\n }\n return scale._cache.$bar;\n}\nfunction computeMinSampleSize(meta) {\n const scale = meta.iScale;\n const values = getAllScaleValues(scale, meta.type);\n let min = scale._length;\n let i, ilen, curr, prev;\n const updateMinAndPrev = () => {\n if (curr === 32767 || curr === -32768) {\n return;\n }\n if (defined(prev)) {\n min = Math.min(min, Math.abs(curr - prev) || min);\n }\n prev = curr;\n };\n for (i = 0, ilen = values.length; i < ilen; ++i) {\n curr = scale.getPixelForValue(values[i]);\n updateMinAndPrev();\n }\n prev = undefined;\n for (i = 0, ilen = scale.ticks.length; i < ilen; ++i) {\n curr = scale.getPixelForTick(i);\n updateMinAndPrev();\n }\n return min;\n}\nfunction computeFitCategoryTraits(index, ruler, options, stackCount) {\n const thickness = options.barThickness;\n let size, ratio;\n if (isNullOrUndef(thickness)) {\n size = ruler.min * options.categoryPercentage;\n ratio = options.barPercentage;\n } else {\n size = thickness * stackCount;\n ratio = 1;\n }\n return {\n chunk: size / stackCount,\n ratio,\n start: ruler.pixels[index] - (size / 2)\n };\n}\nfunction computeFlexCategoryTraits(index, ruler, options, stackCount) {\n const pixels = ruler.pixels;\n const curr = pixels[index];\n let prev = index > 0 ? pixels[index - 1] : null;\n let next = index < pixels.length - 1 ? pixels[index + 1] : null;\n const percent = options.categoryPercentage;\n if (prev === null) {\n prev = curr - (next === null ? ruler.end - ruler.start : next - curr);\n }\n if (next === null) {\n next = curr + curr - prev;\n }\n const start = curr - (curr - Math.min(prev, next)) / 2 * percent;\n const size = Math.abs(next - prev) / 2 * percent;\n return {\n chunk: size / stackCount,\n ratio: options.barPercentage,\n start\n };\n}\nfunction parseFloatBar(entry, item, vScale, i) {\n const startValue = vScale.parse(entry[0], i);\n const endValue = vScale.parse(entry[1], i);\n const min = Math.min(startValue, endValue);\n const max = Math.max(startValue, endValue);\n let barStart = min;\n let barEnd = max;\n if (Math.abs(min) > Math.abs(max)) {\n barStart = max;\n barEnd = min;\n }\n item[vScale.axis] = barEnd;\n item._custom = {\n barStart,\n barEnd,\n start: startValue,\n end: endValue,\n min,\n max\n };\n}\nfunction parseValue(entry, item, vScale, i) {\n if (isArray(entry)) {\n parseFloatBar(entry, item, vScale, i);\n } else {\n item[vScale.axis] = vScale.parse(entry, i);\n }\n return item;\n}\nfunction parseArrayOrPrimitive(meta, data, start, count) {\n const iScale = meta.iScale;\n const vScale = meta.vScale;\n const labels = iScale.getLabels();\n const singleScale = iScale === vScale;\n const parsed = [];\n let i, ilen, item, entry;\n for (i = start, ilen = start + count; i < ilen; ++i) {\n entry = data[i];\n item = {};\n item[iScale.axis] = singleScale || iScale.parse(labels[i], i);\n parsed.push(parseValue(entry, item, vScale, i));\n }\n return parsed;\n}\nfunction isFloatBar(custom) {\n return custom && custom.barStart !== undefined && custom.barEnd !== undefined;\n}\nfunction barSign(size, vScale, actualBase) {\n if (size !== 0) {\n return sign(size);\n }\n return (vScale.isHorizontal() ? 1 : -1) * (vScale.min >= actualBase ? 1 : -1);\n}\nfunction borderProps(properties) {\n let reverse, start, end, top, bottom;\n if (properties.horizontal) {\n reverse = properties.base > properties.x;\n start = 'left';\n end = 'right';\n } else {\n reverse = properties.base < properties.y;\n start = 'bottom';\n end = 'top';\n }\n if (reverse) {\n top = 'end';\n bottom = 'start';\n } else {\n top = 'start';\n bottom = 'end';\n }\n return {start, end, reverse, top, bottom};\n}\nfunction setBorderSkipped(properties, options, stack, index) {\n let edge = options.borderSkipped;\n const res = {};\n if (!edge) {\n properties.borderSkipped = res;\n return;\n }\n const {start, end, reverse, top, bottom} = borderProps(properties);\n if (edge === 'middle' && stack) {\n properties.enableBorderRadius = true;\n if ((stack._top || 0) === index) {\n edge = top;\n } else if ((stack._bottom || 0) === index) {\n edge = bottom;\n } else {\n res[parseEdge(bottom, start, end, reverse)] = true;\n edge = top;\n }\n }\n res[parseEdge(edge, start, end, reverse)] = true;\n properties.borderSkipped = res;\n}\nfunction parseEdge(edge, a, b, reverse) {\n if (reverse) {\n edge = swap(edge, a, b);\n edge = startEnd(edge, b, a);\n } else {\n edge = startEnd(edge, a, b);\n }\n return edge;\n}\nfunction swap(orig, v1, v2) {\n return orig === v1 ? v2 : orig === v2 ? v1 : orig;\n}\nfunction startEnd(v, start, end) {\n return v === 'start' ? start : v === 'end' ? end : v;\n}\nfunction setInflateAmount(properties, {inflateAmount}, ratio) {\n properties.inflateAmount = inflateAmount === 'auto'\n ? ratio === 1 ? 0.33 : 0\n : inflateAmount;\n}\nclass BarController extends DatasetController {\n parsePrimitiveData(meta, data, start, count) {\n return parseArrayOrPrimitive(meta, data, start, count);\n }\n parseArrayData(meta, data, start, count) {\n return parseArrayOrPrimitive(meta, data, start, count);\n }\n parseObjectData(meta, data, start, count) {\n const {iScale, vScale} = meta;\n const {xAxisKey = 'x', yAxisKey = 'y'} = this._parsing;\n const iAxisKey = iScale.axis === 'x' ? xAxisKey : yAxisKey;\n const vAxisKey = vScale.axis === 'x' ? xAxisKey : yAxisKey;\n const parsed = [];\n let i, ilen, item, obj;\n for (i = start, ilen = start + count; i < ilen; ++i) {\n obj = data[i];\n item = {};\n item[iScale.axis] = iScale.parse(resolveObjectKey(obj, iAxisKey), i);\n parsed.push(parseValue(resolveObjectKey(obj, vAxisKey), item, vScale, i));\n }\n return parsed;\n }\n updateRangeFromParsed(range, scale, parsed, stack) {\n super.updateRangeFromParsed(range, scale, parsed, stack);\n const custom = parsed._custom;\n if (custom && scale === this._cachedMeta.vScale) {\n range.min = Math.min(range.min, custom.min);\n range.max = Math.max(range.max, custom.max);\n }\n }\n getMaxOverflow() {\n return 0;\n }\n getLabelAndValue(index) {\n const meta = this._cachedMeta;\n const {iScale, vScale} = meta;\n const parsed = this.getParsed(index);\n const custom = parsed._custom;\n const value = isFloatBar(custom)\n ? '[' + custom.start + ', ' + custom.end + ']'\n : '' + vScale.getLabelForValue(parsed[vScale.axis]);\n return {\n label: '' + iScale.getLabelForValue(parsed[iScale.axis]),\n value\n };\n }\n initialize() {\n this.enableOptionSharing = true;\n super.initialize();\n const meta = this._cachedMeta;\n meta.stack = this.getDataset().stack;\n }\n update(mode) {\n const meta = this._cachedMeta;\n this.updateElements(meta.data, 0, meta.data.length, mode);\n }\n updateElements(bars, start, count, mode) {\n const reset = mode === 'reset';\n const {index, _cachedMeta: {vScale}} = this;\n const base = vScale.getBasePixel();\n const horizontal = vScale.isHorizontal();\n const ruler = this._getRuler();\n const firstOpts = this.resolveDataElementOptions(start, mode);\n const sharedOptions = this.getSharedOptions(firstOpts);\n const includeOptions = this.includeOptions(mode, sharedOptions);\n this.updateSharedOptions(sharedOptions, mode, firstOpts);\n for (let i = start; i < start + count; i++) {\n const parsed = this.getParsed(i);\n const vpixels = reset || isNullOrUndef(parsed[vScale.axis]) ? {base, head: base} : this._calculateBarValuePixels(i);\n const ipixels = this._calculateBarIndexPixels(i, ruler);\n const stack = (parsed._stacks || {})[vScale.axis];\n const properties = {\n horizontal,\n base: vpixels.base,\n enableBorderRadius: !stack || isFloatBar(parsed._custom) || (index === stack._top || index === stack._bottom),\n x: horizontal ? vpixels.head : ipixels.center,\n y: horizontal ? ipixels.center : vpixels.head,\n height: horizontal ? ipixels.size : Math.abs(vpixels.size),\n width: horizontal ? Math.abs(vpixels.size) : ipixels.size\n };\n if (includeOptions) {\n properties.options = sharedOptions || this.resolveDataElementOptions(i, bars[i].active ? 'active' : mode);\n }\n const options = properties.options || bars[i].options;\n setBorderSkipped(properties, options, stack, index);\n setInflateAmount(properties, options, ruler.ratio);\n this.updateElement(bars[i], i, properties, mode);\n }\n }\n _getStacks(last, dataIndex) {\n const meta = this._cachedMeta;\n const iScale = meta.iScale;\n const metasets = iScale.getMatchingVisibleMetas(this._type);\n const stacked = iScale.options.stacked;\n const ilen = metasets.length;\n const stacks = [];\n let i, item;\n for (i = 0; i < ilen; ++i) {\n item = metasets[i];\n if (!item.controller.options.grouped) {\n continue;\n }\n if (typeof dataIndex !== 'undefined') {\n const val = item.controller.getParsed(dataIndex)[\n item.controller._cachedMeta.vScale.axis\n ];\n if (isNullOrUndef(val) || isNaN(val)) {\n continue;\n }\n }\n if (stacked === false || stacks.indexOf(item.stack) === -1 ||\n\t\t\t\t(stacked === undefined && item.stack === undefined)) {\n stacks.push(item.stack);\n }\n if (item.index === last) {\n break;\n }\n }\n if (!stacks.length) {\n stacks.push(undefined);\n }\n return stacks;\n }\n _getStackCount(index) {\n return this._getStacks(undefined, index).length;\n }\n _getStackIndex(datasetIndex, name, dataIndex) {\n const stacks = this._getStacks(datasetIndex, dataIndex);\n const index = (name !== undefined)\n ? stacks.indexOf(name)\n : -1;\n return (index === -1)\n ? stacks.length - 1\n : index;\n }\n _getRuler() {\n const opts = this.options;\n const meta = this._cachedMeta;\n const iScale = meta.iScale;\n const pixels = [];\n let i, ilen;\n for (i = 0, ilen = meta.data.length; i < ilen; ++i) {\n pixels.push(iScale.getPixelForValue(this.getParsed(i)[iScale.axis], i));\n }\n const barThickness = opts.barThickness;\n const min = barThickness || computeMinSampleSize(meta);\n return {\n min,\n pixels,\n start: iScale._startPixel,\n end: iScale._endPixel,\n stackCount: this._getStackCount(),\n scale: iScale,\n grouped: opts.grouped,\n ratio: barThickness ? 1 : opts.categoryPercentage * opts.barPercentage\n };\n }\n _calculateBarValuePixels(index) {\n const {_cachedMeta: {vScale, _stacked}, options: {base: baseValue, minBarLength}} = this;\n const actualBase = baseValue || 0;\n const parsed = this.getParsed(index);\n const custom = parsed._custom;\n const floating = isFloatBar(custom);\n let value = parsed[vScale.axis];\n let start = 0;\n let length = _stacked ? this.applyStack(vScale, parsed, _stacked) : value;\n let head, size;\n if (length !== value) {\n start = length - value;\n length = value;\n }\n if (floating) {\n value = custom.barStart;\n length = custom.barEnd - custom.barStart;\n if (value !== 0 && sign(value) !== sign(custom.barEnd)) {\n start = 0;\n }\n start += value;\n }\n const startValue = !isNullOrUndef(baseValue) && !floating ? baseValue : start;\n let base = vScale.getPixelForValue(startValue);\n if (this.chart.getDataVisibility(index)) {\n head = vScale.getPixelForValue(start + length);\n } else {\n head = base;\n }\n size = head - base;\n if (Math.abs(size) < minBarLength) {\n size = barSign(size, vScale, actualBase) * minBarLength;\n if (value === actualBase) {\n base -= size / 2;\n }\n const startPixel = vScale.getPixelForDecimal(0);\n const endPixel = vScale.getPixelForDecimal(1);\n const min = Math.min(startPixel, endPixel);\n const max = Math.max(startPixel, endPixel);\n base = Math.max(Math.min(base, max), min);\n head = base + size;\n }\n if (base === vScale.getPixelForValue(actualBase)) {\n const halfGrid = sign(size) * vScale.getLineWidthForValue(actualBase) / 2;\n base += halfGrid;\n size -= halfGrid;\n }\n return {\n size,\n base,\n head,\n center: head + size / 2\n };\n }\n _calculateBarIndexPixels(index, ruler) {\n const scale = ruler.scale;\n const options = this.options;\n const skipNull = options.skipNull;\n const maxBarThickness = valueOrDefault(options.maxBarThickness, Infinity);\n let center, size;\n if (ruler.grouped) {\n const stackCount = skipNull ? this._getStackCount(index) : ruler.stackCount;\n const range = options.barThickness === 'flex'\n ? computeFlexCategoryTraits(index, ruler, options, stackCount)\n : computeFitCategoryTraits(index, ruler, options, stackCount);\n const stackIndex = this._getStackIndex(this.index, this._cachedMeta.stack, skipNull ? index : undefined);\n center = range.start + (range.chunk * stackIndex) + (range.chunk / 2);\n size = Math.min(maxBarThickness, range.chunk * range.ratio);\n } else {\n center = scale.getPixelForValue(this.getParsed(index)[scale.axis], index);\n size = Math.min(maxBarThickness, ruler.min * ruler.ratio);\n }\n return {\n base: center - size / 2,\n head: center + size / 2,\n center,\n size\n };\n }\n draw() {\n const meta = this._cachedMeta;\n const vScale = meta.vScale;\n const rects = meta.data;\n const ilen = rects.length;\n let i = 0;\n for (; i < ilen; ++i) {\n if (this.getParsed(i)[vScale.axis] !== null) {\n rects[i].draw(this._ctx);\n }\n }\n }\n}\nBarController.id = 'bar';\nBarController.defaults = {\n datasetElementType: false,\n dataElementType: 'bar',\n categoryPercentage: 0.8,\n barPercentage: 0.9,\n grouped: true,\n animations: {\n numbers: {\n type: 'number',\n properties: ['x', 'y', 'base', 'width', 'height']\n }\n }\n};\nBarController.overrides = {\n scales: {\n _index_: {\n type: 'category',\n offset: true,\n grid: {\n offset: true\n }\n },\n _value_: {\n type: 'linear',\n beginAtZero: true,\n }\n }\n};\n\nclass BubbleController extends DatasetController {\n initialize() {\n this.enableOptionSharing = true;\n super.initialize();\n }\n parsePrimitiveData(meta, data, start, count) {\n const parsed = super.parsePrimitiveData(meta, data, start, count);\n for (let i = 0; i < parsed.length; i++) {\n parsed[i]._custom = this.resolveDataElementOptions(i + start).radius;\n }\n return parsed;\n }\n parseArrayData(meta, data, start, count) {\n const parsed = super.parseArrayData(meta, data, start, count);\n for (let i = 0; i < parsed.length; i++) {\n const item = data[start + i];\n parsed[i]._custom = valueOrDefault(item[2], this.resolveDataElementOptions(i + start).radius);\n }\n return parsed;\n }\n parseObjectData(meta, data, start, count) {\n const parsed = super.parseObjectData(meta, data, start, count);\n for (let i = 0; i < parsed.length; i++) {\n const item = data[start + i];\n parsed[i]._custom = valueOrDefault(item && item.r && +item.r, this.resolveDataElementOptions(i + start).radius);\n }\n return parsed;\n }\n getMaxOverflow() {\n const data = this._cachedMeta.data;\n let max = 0;\n for (let i = data.length - 1; i >= 0; --i) {\n max = Math.max(max, data[i].size(this.resolveDataElementOptions(i)) / 2);\n }\n return max > 0 && max;\n }\n getLabelAndValue(index) {\n const meta = this._cachedMeta;\n const {xScale, yScale} = meta;\n const parsed = this.getParsed(index);\n const x = xScale.getLabelForValue(parsed.x);\n const y = yScale.getLabelForValue(parsed.y);\n const r = parsed._custom;\n return {\n label: meta.label,\n value: '(' + x + ', ' + y + (r ? ', ' + r : '') + ')'\n };\n }\n update(mode) {\n const points = this._cachedMeta.data;\n this.updateElements(points, 0, points.length, mode);\n }\n updateElements(points, start, count, mode) {\n const reset = mode === 'reset';\n const {iScale, vScale} = this._cachedMeta;\n const firstOpts = this.resolveDataElementOptions(start, mode);\n const sharedOptions = this.getSharedOptions(firstOpts);\n const includeOptions = this.includeOptions(mode, sharedOptions);\n const iAxis = iScale.axis;\n const vAxis = vScale.axis;\n for (let i = start; i < start + count; i++) {\n const point = points[i];\n const parsed = !reset && this.getParsed(i);\n const properties = {};\n const iPixel = properties[iAxis] = reset ? iScale.getPixelForDecimal(0.5) : iScale.getPixelForValue(parsed[iAxis]);\n const vPixel = properties[vAxis] = reset ? vScale.getBasePixel() : vScale.getPixelForValue(parsed[vAxis]);\n properties.skip = isNaN(iPixel) || isNaN(vPixel);\n if (includeOptions) {\n properties.options = this.resolveDataElementOptions(i, point.active ? 'active' : mode);\n if (reset) {\n properties.options.radius = 0;\n }\n }\n this.updateElement(point, i, properties, mode);\n }\n this.updateSharedOptions(sharedOptions, mode, firstOpts);\n }\n resolveDataElementOptions(index, mode) {\n const parsed = this.getParsed(index);\n let values = super.resolveDataElementOptions(index, mode);\n if (values.$shared) {\n values = Object.assign({}, values, {$shared: false});\n }\n const radius = values.radius;\n if (mode !== 'active') {\n values.radius = 0;\n }\n values.radius += valueOrDefault(parsed && parsed._custom, radius);\n return values;\n }\n}\nBubbleController.id = 'bubble';\nBubbleController.defaults = {\n datasetElementType: false,\n dataElementType: 'point',\n animations: {\n numbers: {\n type: 'number',\n properties: ['x', 'y', 'borderWidth', 'radius']\n }\n }\n};\nBubbleController.overrides = {\n scales: {\n x: {\n type: 'linear'\n },\n y: {\n type: 'linear'\n }\n },\n plugins: {\n tooltip: {\n callbacks: {\n title() {\n return '';\n }\n }\n }\n }\n};\n\nfunction getRatioAndOffset(rotation, circumference, cutout) {\n let ratioX = 1;\n let ratioY = 1;\n let offsetX = 0;\n let offsetY = 0;\n if (circumference < TAU) {\n const startAngle = rotation;\n const endAngle = startAngle + circumference;\n const startX = Math.cos(startAngle);\n const startY = Math.sin(startAngle);\n const endX = Math.cos(endAngle);\n const endY = Math.sin(endAngle);\n const calcMax = (angle, a, b) => _angleBetween(angle, startAngle, endAngle, true) ? 1 : Math.max(a, a * cutout, b, b * cutout);\n const calcMin = (angle, a, b) => _angleBetween(angle, startAngle, endAngle, true) ? -1 : Math.min(a, a * cutout, b, b * cutout);\n const maxX = calcMax(0, startX, endX);\n const maxY = calcMax(HALF_PI, startY, endY);\n const minX = calcMin(PI, startX, endX);\n const minY = calcMin(PI + HALF_PI, startY, endY);\n ratioX = (maxX - minX) / 2;\n ratioY = (maxY - minY) / 2;\n offsetX = -(maxX + minX) / 2;\n offsetY = -(maxY + minY) / 2;\n }\n return {ratioX, ratioY, offsetX, offsetY};\n}\nclass DoughnutController extends DatasetController {\n constructor(chart, datasetIndex) {\n super(chart, datasetIndex);\n this.enableOptionSharing = true;\n this.innerRadius = undefined;\n this.outerRadius = undefined;\n this.offsetX = undefined;\n this.offsetY = undefined;\n }\n linkScales() {}\n parse(start, count) {\n const data = this.getDataset().data;\n const meta = this._cachedMeta;\n if (this._parsing === false) {\n meta._parsed = data;\n } else {\n let getter = (i) => +data[i];\n if (isObject(data[start])) {\n const {key = 'value'} = this._parsing;\n getter = (i) => +resolveObjectKey(data[i], key);\n }\n let i, ilen;\n for (i = start, ilen = start + count; i < ilen; ++i) {\n meta._parsed[i] = getter(i);\n }\n }\n }\n _getRotation() {\n return toRadians(this.options.rotation - 90);\n }\n _getCircumference() {\n return toRadians(this.options.circumference);\n }\n _getRotationExtents() {\n let min = TAU;\n let max = -TAU;\n for (let i = 0; i < this.chart.data.datasets.length; ++i) {\n if (this.chart.isDatasetVisible(i)) {\n const controller = this.chart.getDatasetMeta(i).controller;\n const rotation = controller._getRotation();\n const circumference = controller._getCircumference();\n min = Math.min(min, rotation);\n max = Math.max(max, rotation + circumference);\n }\n }\n return {\n rotation: min,\n circumference: max - min,\n };\n }\n update(mode) {\n const chart = this.chart;\n const {chartArea} = chart;\n const meta = this._cachedMeta;\n const arcs = meta.data;\n const spacing = this.getMaxBorderWidth() + this.getMaxOffset(arcs) + this.options.spacing;\n const maxSize = Math.max((Math.min(chartArea.width, chartArea.height) - spacing) / 2, 0);\n const cutout = Math.min(toPercentage(this.options.cutout, maxSize), 1);\n const chartWeight = this._getRingWeight(this.index);\n const {circumference, rotation} = this._getRotationExtents();\n const {ratioX, ratioY, offsetX, offsetY} = getRatioAndOffset(rotation, circumference, cutout);\n const maxWidth = (chartArea.width - spacing) / ratioX;\n const maxHeight = (chartArea.height - spacing) / ratioY;\n const maxRadius = Math.max(Math.min(maxWidth, maxHeight) / 2, 0);\n const outerRadius = toDimension(this.options.radius, maxRadius);\n const innerRadius = Math.max(outerRadius * cutout, 0);\n const radiusLength = (outerRadius - innerRadius) / this._getVisibleDatasetWeightTotal();\n this.offsetX = offsetX * outerRadius;\n this.offsetY = offsetY * outerRadius;\n meta.total = this.calculateTotal();\n this.outerRadius = outerRadius - radiusLength * this._getRingWeightOffset(this.index);\n this.innerRadius = Math.max(this.outerRadius - radiusLength * chartWeight, 0);\n this.updateElements(arcs, 0, arcs.length, mode);\n }\n _circumference(i, reset) {\n const opts = this.options;\n const meta = this._cachedMeta;\n const circumference = this._getCircumference();\n if ((reset && opts.animation.animateRotate) || !this.chart.getDataVisibility(i) || meta._parsed[i] === null || meta.data[i].hidden) {\n return 0;\n }\n return this.calculateCircumference(meta._parsed[i] * circumference / TAU);\n }\n updateElements(arcs, start, count, mode) {\n const reset = mode === 'reset';\n const chart = this.chart;\n const chartArea = chart.chartArea;\n const opts = chart.options;\n const animationOpts = opts.animation;\n const centerX = (chartArea.left + chartArea.right) / 2;\n const centerY = (chartArea.top + chartArea.bottom) / 2;\n const animateScale = reset && animationOpts.animateScale;\n const innerRadius = animateScale ? 0 : this.innerRadius;\n const outerRadius = animateScale ? 0 : this.outerRadius;\n const firstOpts = this.resolveDataElementOptions(start, mode);\n const sharedOptions = this.getSharedOptions(firstOpts);\n const includeOptions = this.includeOptions(mode, sharedOptions);\n let startAngle = this._getRotation();\n let i;\n for (i = 0; i < start; ++i) {\n startAngle += this._circumference(i, reset);\n }\n for (i = start; i < start + count; ++i) {\n const circumference = this._circumference(i, reset);\n const arc = arcs[i];\n const properties = {\n x: centerX + this.offsetX,\n y: centerY + this.offsetY,\n startAngle,\n endAngle: startAngle + circumference,\n circumference,\n outerRadius,\n innerRadius\n };\n if (includeOptions) {\n properties.options = sharedOptions || this.resolveDataElementOptions(i, arc.active ? 'active' : mode);\n }\n startAngle += circumference;\n this.updateElement(arc, i, properties, mode);\n }\n this.updateSharedOptions(sharedOptions, mode, firstOpts);\n }\n calculateTotal() {\n const meta = this._cachedMeta;\n const metaData = meta.data;\n let total = 0;\n let i;\n for (i = 0; i < metaData.length; i++) {\n const value = meta._parsed[i];\n if (value !== null && !isNaN(value) && this.chart.getDataVisibility(i) && !metaData[i].hidden) {\n total += Math.abs(value);\n }\n }\n return total;\n }\n calculateCircumference(value) {\n const total = this._cachedMeta.total;\n if (total > 0 && !isNaN(value)) {\n return TAU * (Math.abs(value) / total);\n }\n return 0;\n }\n getLabelAndValue(index) {\n const meta = this._cachedMeta;\n const chart = this.chart;\n const labels = chart.data.labels || [];\n const value = formatNumber(meta._parsed[index], chart.options.locale);\n return {\n label: labels[index] || '',\n value,\n };\n }\n getMaxBorderWidth(arcs) {\n let max = 0;\n const chart = this.chart;\n let i, ilen, meta, controller, options;\n if (!arcs) {\n for (i = 0, ilen = chart.data.datasets.length; i < ilen; ++i) {\n if (chart.isDatasetVisible(i)) {\n meta = chart.getDatasetMeta(i);\n arcs = meta.data;\n controller = meta.controller;\n break;\n }\n }\n }\n if (!arcs) {\n return 0;\n }\n for (i = 0, ilen = arcs.length; i < ilen; ++i) {\n options = controller.resolveDataElementOptions(i);\n if (options.borderAlign !== 'inner') {\n max = Math.max(max, options.borderWidth || 0, options.hoverBorderWidth || 0);\n }\n }\n return max;\n }\n getMaxOffset(arcs) {\n let max = 0;\n for (let i = 0, ilen = arcs.length; i < ilen; ++i) {\n const options = this.resolveDataElementOptions(i);\n max = Math.max(max, options.offset || 0, options.hoverOffset || 0);\n }\n return max;\n }\n _getRingWeightOffset(datasetIndex) {\n let ringWeightOffset = 0;\n for (let i = 0; i < datasetIndex; ++i) {\n if (this.chart.isDatasetVisible(i)) {\n ringWeightOffset += this._getRingWeight(i);\n }\n }\n return ringWeightOffset;\n }\n _getRingWeight(datasetIndex) {\n return Math.max(valueOrDefault(this.chart.data.datasets[datasetIndex].weight, 1), 0);\n }\n _getVisibleDatasetWeightTotal() {\n return this._getRingWeightOffset(this.chart.data.datasets.length) || 1;\n }\n}\nDoughnutController.id = 'doughnut';\nDoughnutController.defaults = {\n datasetElementType: false,\n dataElementType: 'arc',\n animation: {\n animateRotate: true,\n animateScale: false\n },\n animations: {\n numbers: {\n type: 'number',\n properties: ['circumference', 'endAngle', 'innerRadius', 'outerRadius', 'startAngle', 'x', 'y', 'offset', 'borderWidth', 'spacing']\n },\n },\n cutout: '50%',\n rotation: 0,\n circumference: 360,\n radius: '100%',\n spacing: 0,\n indexAxis: 'r',\n};\nDoughnutController.descriptors = {\n _scriptable: (name) => name !== 'spacing',\n _indexable: (name) => name !== 'spacing',\n};\nDoughnutController.overrides = {\n aspectRatio: 1,\n plugins: {\n legend: {\n labels: {\n generateLabels(chart) {\n const data = chart.data;\n if (data.labels.length && data.datasets.length) {\n const {labels: {pointStyle}} = chart.legend.options;\n return data.labels.map((label, i) => {\n const meta = chart.getDatasetMeta(0);\n const style = meta.controller.getStyle(i);\n return {\n text: label,\n fillStyle: style.backgroundColor,\n strokeStyle: style.borderColor,\n lineWidth: style.borderWidth,\n pointStyle: pointStyle,\n hidden: !chart.getDataVisibility(i),\n index: i\n };\n });\n }\n return [];\n }\n },\n onClick(e, legendItem, legend) {\n legend.chart.toggleDataVisibility(legendItem.index);\n legend.chart.update();\n }\n },\n tooltip: {\n callbacks: {\n title() {\n return '';\n },\n label(tooltipItem) {\n let dataLabel = tooltipItem.label;\n const value = ': ' + tooltipItem.formattedValue;\n if (isArray(dataLabel)) {\n dataLabel = dataLabel.slice();\n dataLabel[0] += value;\n } else {\n dataLabel += value;\n }\n return dataLabel;\n }\n }\n }\n }\n};\n\nclass LineController extends DatasetController {\n initialize() {\n this.enableOptionSharing = true;\n this.supportsDecimation = true;\n super.initialize();\n }\n update(mode) {\n const meta = this._cachedMeta;\n const {dataset: line, data: points = [], _dataset} = meta;\n const animationsDisabled = this.chart._animationsDisabled;\n let {start, count} = getStartAndCountOfVisiblePoints(meta, points, animationsDisabled);\n this._drawStart = start;\n this._drawCount = count;\n if (scaleRangesChanged(meta)) {\n start = 0;\n count = points.length;\n }\n line._chart = this.chart;\n line._datasetIndex = this.index;\n line._decimated = !!_dataset._decimated;\n line.points = points;\n const options = this.resolveDatasetElementOptions(mode);\n if (!this.options.showLine) {\n options.borderWidth = 0;\n }\n options.segment = this.options.segment;\n this.updateElement(line, undefined, {\n animated: !animationsDisabled,\n options\n }, mode);\n this.updateElements(points, start, count, mode);\n }\n updateElements(points, start, count, mode) {\n const reset = mode === 'reset';\n const {iScale, vScale, _stacked, _dataset} = this._cachedMeta;\n const firstOpts = this.resolveDataElementOptions(start, mode);\n const sharedOptions = this.getSharedOptions(firstOpts);\n const includeOptions = this.includeOptions(mode, sharedOptions);\n const iAxis = iScale.axis;\n const vAxis = vScale.axis;\n const {spanGaps, segment} = this.options;\n const maxGapLength = isNumber(spanGaps) ? spanGaps : Number.POSITIVE_INFINITY;\n const directUpdate = this.chart._animationsDisabled || reset || mode === 'none';\n let prevParsed = start > 0 && this.getParsed(start - 1);\n for (let i = start; i < start + count; ++i) {\n const point = points[i];\n const parsed = this.getParsed(i);\n const properties = directUpdate ? point : {};\n const nullData = isNullOrUndef(parsed[vAxis]);\n const iPixel = properties[iAxis] = iScale.getPixelForValue(parsed[iAxis], i);\n const vPixel = properties[vAxis] = reset || nullData ? vScale.getBasePixel() : vScale.getPixelForValue(_stacked ? this.applyStack(vScale, parsed, _stacked) : parsed[vAxis], i);\n properties.skip = isNaN(iPixel) || isNaN(vPixel) || nullData;\n properties.stop = i > 0 && (Math.abs(parsed[iAxis] - prevParsed[iAxis])) > maxGapLength;\n if (segment) {\n properties.parsed = parsed;\n properties.raw = _dataset.data[i];\n }\n if (includeOptions) {\n properties.options = sharedOptions || this.resolveDataElementOptions(i, point.active ? 'active' : mode);\n }\n if (!directUpdate) {\n this.updateElement(point, i, properties, mode);\n }\n prevParsed = parsed;\n }\n this.updateSharedOptions(sharedOptions, mode, firstOpts);\n }\n getMaxOverflow() {\n const meta = this._cachedMeta;\n const dataset = meta.dataset;\n const border = dataset.options && dataset.options.borderWidth || 0;\n const data = meta.data || [];\n if (!data.length) {\n return border;\n }\n const firstPoint = data[0].size(this.resolveDataElementOptions(0));\n const lastPoint = data[data.length - 1].size(this.resolveDataElementOptions(data.length - 1));\n return Math.max(border, firstPoint, lastPoint) / 2;\n }\n draw() {\n const meta = this._cachedMeta;\n meta.dataset.updateControlPoints(this.chart.chartArea, meta.iScale.axis);\n super.draw();\n }\n}\nLineController.id = 'line';\nLineController.defaults = {\n datasetElementType: 'line',\n dataElementType: 'point',\n showLine: true,\n spanGaps: false,\n};\nLineController.overrides = {\n scales: {\n _index_: {\n type: 'category',\n },\n _value_: {\n type: 'linear',\n },\n }\n};\nfunction getStartAndCountOfVisiblePoints(meta, points, animationsDisabled) {\n const pointCount = points.length;\n let start = 0;\n let count = pointCount;\n if (meta._sorted) {\n const {iScale, _parsed} = meta;\n const axis = iScale.axis;\n const {min, max, minDefined, maxDefined} = iScale.getUserBounds();\n if (minDefined) {\n start = _limitValue(Math.min(\n _lookupByKey(_parsed, iScale.axis, min).lo,\n animationsDisabled ? pointCount : _lookupByKey(points, axis, iScale.getPixelForValue(min)).lo),\n 0, pointCount - 1);\n }\n if (maxDefined) {\n count = _limitValue(Math.max(\n _lookupByKey(_parsed, iScale.axis, max).hi + 1,\n animationsDisabled ? 0 : _lookupByKey(points, axis, iScale.getPixelForValue(max)).hi + 1),\n start, pointCount) - start;\n } else {\n count = pointCount - start;\n }\n }\n return {start, count};\n}\nfunction scaleRangesChanged(meta) {\n const {xScale, yScale, _scaleRanges} = meta;\n const newRanges = {\n xmin: xScale.min,\n xmax: xScale.max,\n ymin: yScale.min,\n ymax: yScale.max\n };\n if (!_scaleRanges) {\n meta._scaleRanges = newRanges;\n return true;\n }\n const changed = _scaleRanges.xmin !== xScale.min\n\t\t|| _scaleRanges.xmax !== xScale.max\n\t\t|| _scaleRanges.ymin !== yScale.min\n\t\t|| _scaleRanges.ymax !== yScale.max;\n Object.assign(_scaleRanges, newRanges);\n return changed;\n}\n\nclass PolarAreaController extends DatasetController {\n constructor(chart, datasetIndex) {\n super(chart, datasetIndex);\n this.innerRadius = undefined;\n this.outerRadius = undefined;\n }\n getLabelAndValue(index) {\n const meta = this._cachedMeta;\n const chart = this.chart;\n const labels = chart.data.labels || [];\n const value = formatNumber(meta._parsed[index].r, chart.options.locale);\n return {\n label: labels[index] || '',\n value,\n };\n }\n parseObjectData(meta, data, start, count) {\n return _parseObjectDataRadialScale.bind(this)(meta, data, start, count);\n }\n update(mode) {\n const arcs = this._cachedMeta.data;\n this._updateRadius();\n this.updateElements(arcs, 0, arcs.length, mode);\n }\n getMinMax() {\n const meta = this._cachedMeta;\n const range = {min: Number.POSITIVE_INFINITY, max: Number.NEGATIVE_INFINITY};\n meta.data.forEach((element, index) => {\n const parsed = this.getParsed(index).r;\n if (!isNaN(parsed) && this.chart.getDataVisibility(index)) {\n if (parsed < range.min) {\n range.min = parsed;\n }\n if (parsed > range.max) {\n range.max = parsed;\n }\n }\n });\n return range;\n }\n _updateRadius() {\n const chart = this.chart;\n const chartArea = chart.chartArea;\n const opts = chart.options;\n const minSize = Math.min(chartArea.right - chartArea.left, chartArea.bottom - chartArea.top);\n const outerRadius = Math.max(minSize / 2, 0);\n const innerRadius = Math.max(opts.cutoutPercentage ? (outerRadius / 100) * (opts.cutoutPercentage) : 1, 0);\n const radiusLength = (outerRadius - innerRadius) / chart.getVisibleDatasetCount();\n this.outerRadius = outerRadius - (radiusLength * this.index);\n this.innerRadius = this.outerRadius - radiusLength;\n }\n updateElements(arcs, start, count, mode) {\n const reset = mode === 'reset';\n const chart = this.chart;\n const opts = chart.options;\n const animationOpts = opts.animation;\n const scale = this._cachedMeta.rScale;\n const centerX = scale.xCenter;\n const centerY = scale.yCenter;\n const datasetStartAngle = scale.getIndexAngle(0) - 0.5 * PI;\n let angle = datasetStartAngle;\n let i;\n const defaultAngle = 360 / this.countVisibleElements();\n for (i = 0; i < start; ++i) {\n angle += this._computeAngle(i, mode, defaultAngle);\n }\n for (i = start; i < start + count; i++) {\n const arc = arcs[i];\n let startAngle = angle;\n let endAngle = angle + this._computeAngle(i, mode, defaultAngle);\n let outerRadius = chart.getDataVisibility(i) ? scale.getDistanceFromCenterForValue(this.getParsed(i).r) : 0;\n angle = endAngle;\n if (reset) {\n if (animationOpts.animateScale) {\n outerRadius = 0;\n }\n if (animationOpts.animateRotate) {\n startAngle = endAngle = datasetStartAngle;\n }\n }\n const properties = {\n x: centerX,\n y: centerY,\n innerRadius: 0,\n outerRadius,\n startAngle,\n endAngle,\n options: this.resolveDataElementOptions(i, arc.active ? 'active' : mode)\n };\n this.updateElement(arc, i, properties, mode);\n }\n }\n countVisibleElements() {\n const meta = this._cachedMeta;\n let count = 0;\n meta.data.forEach((element, index) => {\n if (!isNaN(this.getParsed(index).r) && this.chart.getDataVisibility(index)) {\n count++;\n }\n });\n return count;\n }\n _computeAngle(index, mode, defaultAngle) {\n return this.chart.getDataVisibility(index)\n ? toRadians(this.resolveDataElementOptions(index, mode).angle || defaultAngle)\n : 0;\n }\n}\nPolarAreaController.id = 'polarArea';\nPolarAreaController.defaults = {\n dataElementType: 'arc',\n animation: {\n animateRotate: true,\n animateScale: true\n },\n animations: {\n numbers: {\n type: 'number',\n properties: ['x', 'y', 'startAngle', 'endAngle', 'innerRadius', 'outerRadius']\n },\n },\n indexAxis: 'r',\n startAngle: 0,\n};\nPolarAreaController.overrides = {\n aspectRatio: 1,\n plugins: {\n legend: {\n labels: {\n generateLabels(chart) {\n const data = chart.data;\n if (data.labels.length && data.datasets.length) {\n const {labels: {pointStyle}} = chart.legend.options;\n return data.labels.map((label, i) => {\n const meta = chart.getDatasetMeta(0);\n const style = meta.controller.getStyle(i);\n return {\n text: label,\n fillStyle: style.backgroundColor,\n strokeStyle: style.borderColor,\n lineWidth: style.borderWidth,\n pointStyle: pointStyle,\n hidden: !chart.getDataVisibility(i),\n index: i\n };\n });\n }\n return [];\n }\n },\n onClick(e, legendItem, legend) {\n legend.chart.toggleDataVisibility(legendItem.index);\n legend.chart.update();\n }\n },\n tooltip: {\n callbacks: {\n title() {\n return '';\n },\n label(context) {\n return context.chart.data.labels[context.dataIndex] + ': ' + context.formattedValue;\n }\n }\n }\n },\n scales: {\n r: {\n type: 'radialLinear',\n angleLines: {\n display: false\n },\n beginAtZero: true,\n grid: {\n circular: true\n },\n pointLabels: {\n display: false\n },\n startAngle: 0\n }\n }\n};\n\nclass PieController extends DoughnutController {\n}\nPieController.id = 'pie';\nPieController.defaults = {\n cutout: 0,\n rotation: 0,\n circumference: 360,\n radius: '100%'\n};\n\nclass RadarController extends DatasetController {\n getLabelAndValue(index) {\n const vScale = this._cachedMeta.vScale;\n const parsed = this.getParsed(index);\n return {\n label: vScale.getLabels()[index],\n value: '' + vScale.getLabelForValue(parsed[vScale.axis])\n };\n }\n parseObjectData(meta, data, start, count) {\n return _parseObjectDataRadialScale.bind(this)(meta, data, start, count);\n }\n update(mode) {\n const meta = this._cachedMeta;\n const line = meta.dataset;\n const points = meta.data || [];\n const labels = meta.iScale.getLabels();\n line.points = points;\n if (mode !== 'resize') {\n const options = this.resolveDatasetElementOptions(mode);\n if (!this.options.showLine) {\n options.borderWidth = 0;\n }\n const properties = {\n _loop: true,\n _fullLoop: labels.length === points.length,\n options\n };\n this.updateElement(line, undefined, properties, mode);\n }\n this.updateElements(points, 0, points.length, mode);\n }\n updateElements(points, start, count, mode) {\n const scale = this._cachedMeta.rScale;\n const reset = mode === 'reset';\n for (let i = start; i < start + count; i++) {\n const point = points[i];\n const options = this.resolveDataElementOptions(i, point.active ? 'active' : mode);\n const pointPosition = scale.getPointPositionForValue(i, this.getParsed(i).r);\n const x = reset ? scale.xCenter : pointPosition.x;\n const y = reset ? scale.yCenter : pointPosition.y;\n const properties = {\n x,\n y,\n angle: pointPosition.angle,\n skip: isNaN(x) || isNaN(y),\n options\n };\n this.updateElement(point, i, properties, mode);\n }\n }\n}\nRadarController.id = 'radar';\nRadarController.defaults = {\n datasetElementType: 'line',\n dataElementType: 'point',\n indexAxis: 'r',\n showLine: true,\n elements: {\n line: {\n fill: 'start'\n }\n },\n};\nRadarController.overrides = {\n aspectRatio: 1,\n scales: {\n r: {\n type: 'radialLinear',\n }\n }\n};\n\nclass ScatterController extends LineController {\n}\nScatterController.id = 'scatter';\nScatterController.defaults = {\n showLine: false,\n fill: false\n};\nScatterController.overrides = {\n interaction: {\n mode: 'point'\n },\n plugins: {\n tooltip: {\n callbacks: {\n title() {\n return '';\n },\n label(item) {\n return '(' + item.label + ', ' + item.formattedValue + ')';\n }\n }\n }\n },\n scales: {\n x: {\n type: 'linear'\n },\n y: {\n type: 'linear'\n }\n }\n};\n\nvar controllers = /*#__PURE__*/Object.freeze({\n__proto__: null,\nBarController: BarController,\nBubbleController: BubbleController,\nDoughnutController: DoughnutController,\nLineController: LineController,\nPolarAreaController: PolarAreaController,\nPieController: PieController,\nRadarController: RadarController,\nScatterController: ScatterController\n});\n\nfunction clipArc(ctx, element, endAngle) {\n const {startAngle, pixelMargin, x, y, outerRadius, innerRadius} = element;\n let angleMargin = pixelMargin / outerRadius;\n ctx.beginPath();\n ctx.arc(x, y, outerRadius, startAngle - angleMargin, endAngle + angleMargin);\n if (innerRadius > pixelMargin) {\n angleMargin = pixelMargin / innerRadius;\n ctx.arc(x, y, innerRadius, endAngle + angleMargin, startAngle - angleMargin, true);\n } else {\n ctx.arc(x, y, pixelMargin, endAngle + HALF_PI, startAngle - HALF_PI);\n }\n ctx.closePath();\n ctx.clip();\n}\nfunction toRadiusCorners(value) {\n return _readValueToProps(value, ['outerStart', 'outerEnd', 'innerStart', 'innerEnd']);\n}\nfunction parseBorderRadius$1(arc, innerRadius, outerRadius, angleDelta) {\n const o = toRadiusCorners(arc.options.borderRadius);\n const halfThickness = (outerRadius - innerRadius) / 2;\n const innerLimit = Math.min(halfThickness, angleDelta * innerRadius / 2);\n const computeOuterLimit = (val) => {\n const outerArcLimit = (outerRadius - Math.min(halfThickness, val)) * angleDelta / 2;\n return _limitValue(val, 0, Math.min(halfThickness, outerArcLimit));\n };\n return {\n outerStart: computeOuterLimit(o.outerStart),\n outerEnd: computeOuterLimit(o.outerEnd),\n innerStart: _limitValue(o.innerStart, 0, innerLimit),\n innerEnd: _limitValue(o.innerEnd, 0, innerLimit),\n };\n}\nfunction rThetaToXY(r, theta, x, y) {\n return {\n x: x + r * Math.cos(theta),\n y: y + r * Math.sin(theta),\n };\n}\nfunction pathArc(ctx, element, offset, spacing, end) {\n const {x, y, startAngle: start, pixelMargin, innerRadius: innerR} = element;\n const outerRadius = Math.max(element.outerRadius + spacing + offset - pixelMargin, 0);\n const innerRadius = innerR > 0 ? innerR + spacing + offset + pixelMargin : 0;\n let spacingOffset = 0;\n const alpha = end - start;\n if (spacing) {\n const noSpacingInnerRadius = innerR > 0 ? innerR - spacing : 0;\n const noSpacingOuterRadius = outerRadius > 0 ? outerRadius - spacing : 0;\n const avNogSpacingRadius = (noSpacingInnerRadius + noSpacingOuterRadius) / 2;\n const adjustedAngle = avNogSpacingRadius !== 0 ? (alpha * avNogSpacingRadius) / (avNogSpacingRadius + spacing) : alpha;\n spacingOffset = (alpha - adjustedAngle) / 2;\n }\n const beta = Math.max(0.001, alpha * outerRadius - offset / PI) / outerRadius;\n const angleOffset = (alpha - beta) / 2;\n const startAngle = start + angleOffset + spacingOffset;\n const endAngle = end - angleOffset - spacingOffset;\n const {outerStart, outerEnd, innerStart, innerEnd} = parseBorderRadius$1(element, innerRadius, outerRadius, endAngle - startAngle);\n const outerStartAdjustedRadius = outerRadius - outerStart;\n const outerEndAdjustedRadius = outerRadius - outerEnd;\n const outerStartAdjustedAngle = startAngle + outerStart / outerStartAdjustedRadius;\n const outerEndAdjustedAngle = endAngle - outerEnd / outerEndAdjustedRadius;\n const innerStartAdjustedRadius = innerRadius + innerStart;\n const innerEndAdjustedRadius = innerRadius + innerEnd;\n const innerStartAdjustedAngle = startAngle + innerStart / innerStartAdjustedRadius;\n const innerEndAdjustedAngle = endAngle - innerEnd / innerEndAdjustedRadius;\n ctx.beginPath();\n ctx.arc(x, y, outerRadius, outerStartAdjustedAngle, outerEndAdjustedAngle);\n if (outerEnd > 0) {\n const pCenter = rThetaToXY(outerEndAdjustedRadius, outerEndAdjustedAngle, x, y);\n ctx.arc(pCenter.x, pCenter.y, outerEnd, outerEndAdjustedAngle, endAngle + HALF_PI);\n }\n const p4 = rThetaToXY(innerEndAdjustedRadius, endAngle, x, y);\n ctx.lineTo(p4.x, p4.y);\n if (innerEnd > 0) {\n const pCenter = rThetaToXY(innerEndAdjustedRadius, innerEndAdjustedAngle, x, y);\n ctx.arc(pCenter.x, pCenter.y, innerEnd, endAngle + HALF_PI, innerEndAdjustedAngle + Math.PI);\n }\n ctx.arc(x, y, innerRadius, endAngle - (innerEnd / innerRadius), startAngle + (innerStart / innerRadius), true);\n if (innerStart > 0) {\n const pCenter = rThetaToXY(innerStartAdjustedRadius, innerStartAdjustedAngle, x, y);\n ctx.arc(pCenter.x, pCenter.y, innerStart, innerStartAdjustedAngle + Math.PI, startAngle - HALF_PI);\n }\n const p8 = rThetaToXY(outerStartAdjustedRadius, startAngle, x, y);\n ctx.lineTo(p8.x, p8.y);\n if (outerStart > 0) {\n const pCenter = rThetaToXY(outerStartAdjustedRadius, outerStartAdjustedAngle, x, y);\n ctx.arc(pCenter.x, pCenter.y, outerStart, startAngle - HALF_PI, outerStartAdjustedAngle);\n }\n ctx.closePath();\n}\nfunction drawArc(ctx, element, offset, spacing) {\n const {fullCircles, startAngle, circumference} = element;\n let endAngle = element.endAngle;\n if (fullCircles) {\n pathArc(ctx, element, offset, spacing, startAngle + TAU);\n for (let i = 0; i < fullCircles; ++i) {\n ctx.fill();\n }\n if (!isNaN(circumference)) {\n endAngle = startAngle + circumference % TAU;\n if (circumference % TAU === 0) {\n endAngle += TAU;\n }\n }\n }\n pathArc(ctx, element, offset, spacing, endAngle);\n ctx.fill();\n return endAngle;\n}\nfunction drawFullCircleBorders(ctx, element, inner) {\n const {x, y, startAngle, pixelMargin, fullCircles} = element;\n const outerRadius = Math.max(element.outerRadius - pixelMargin, 0);\n const innerRadius = element.innerRadius + pixelMargin;\n let i;\n if (inner) {\n clipArc(ctx, element, startAngle + TAU);\n }\n ctx.beginPath();\n ctx.arc(x, y, innerRadius, startAngle + TAU, startAngle, true);\n for (i = 0; i < fullCircles; ++i) {\n ctx.stroke();\n }\n ctx.beginPath();\n ctx.arc(x, y, outerRadius, startAngle, startAngle + TAU);\n for (i = 0; i < fullCircles; ++i) {\n ctx.stroke();\n }\n}\nfunction drawBorder(ctx, element, offset, spacing, endAngle) {\n const {options} = element;\n const {borderWidth, borderJoinStyle} = options;\n const inner = options.borderAlign === 'inner';\n if (!borderWidth) {\n return;\n }\n if (inner) {\n ctx.lineWidth = borderWidth * 2;\n ctx.lineJoin = borderJoinStyle || 'round';\n } else {\n ctx.lineWidth = borderWidth;\n ctx.lineJoin = borderJoinStyle || 'bevel';\n }\n if (element.fullCircles) {\n drawFullCircleBorders(ctx, element, inner);\n }\n if (inner) {\n clipArc(ctx, element, endAngle);\n }\n pathArc(ctx, element, offset, spacing, endAngle);\n ctx.stroke();\n}\nclass ArcElement extends Element {\n constructor(cfg) {\n super();\n this.options = undefined;\n this.circumference = undefined;\n this.startAngle = undefined;\n this.endAngle = undefined;\n this.innerRadius = undefined;\n this.outerRadius = undefined;\n this.pixelMargin = 0;\n this.fullCircles = 0;\n if (cfg) {\n Object.assign(this, cfg);\n }\n }\n inRange(chartX, chartY, useFinalPosition) {\n const point = this.getProps(['x', 'y'], useFinalPosition);\n const {angle, distance} = getAngleFromPoint(point, {x: chartX, y: chartY});\n const {startAngle, endAngle, innerRadius, outerRadius, circumference} = this.getProps([\n 'startAngle',\n 'endAngle',\n 'innerRadius',\n 'outerRadius',\n 'circumference'\n ], useFinalPosition);\n const rAdjust = this.options.spacing / 2;\n const _circumference = valueOrDefault(circumference, endAngle - startAngle);\n const betweenAngles = _circumference >= TAU || _angleBetween(angle, startAngle, endAngle);\n const withinRadius = _isBetween(distance, innerRadius + rAdjust, outerRadius + rAdjust);\n return (betweenAngles && withinRadius);\n }\n getCenterPoint(useFinalPosition) {\n const {x, y, startAngle, endAngle, innerRadius, outerRadius} = this.getProps([\n 'x',\n 'y',\n 'startAngle',\n 'endAngle',\n 'innerRadius',\n 'outerRadius',\n 'circumference',\n ], useFinalPosition);\n const {offset, spacing} = this.options;\n const halfAngle = (startAngle + endAngle) / 2;\n const halfRadius = (innerRadius + outerRadius + spacing + offset) / 2;\n return {\n x: x + Math.cos(halfAngle) * halfRadius,\n y: y + Math.sin(halfAngle) * halfRadius\n };\n }\n tooltipPosition(useFinalPosition) {\n return this.getCenterPoint(useFinalPosition);\n }\n draw(ctx) {\n const {options, circumference} = this;\n const offset = (options.offset || 0) / 2;\n const spacing = (options.spacing || 0) / 2;\n this.pixelMargin = (options.borderAlign === 'inner') ? 0.33 : 0;\n this.fullCircles = circumference > TAU ? Math.floor(circumference / TAU) : 0;\n if (circumference === 0 || this.innerRadius < 0 || this.outerRadius < 0) {\n return;\n }\n ctx.save();\n let radiusOffset = 0;\n if (offset) {\n radiusOffset = offset / 2;\n const halfAngle = (this.startAngle + this.endAngle) / 2;\n ctx.translate(Math.cos(halfAngle) * radiusOffset, Math.sin(halfAngle) * radiusOffset);\n if (this.circumference >= PI) {\n radiusOffset = offset;\n }\n }\n ctx.fillStyle = options.backgroundColor;\n ctx.strokeStyle = options.borderColor;\n const endAngle = drawArc(ctx, this, radiusOffset, spacing);\n drawBorder(ctx, this, radiusOffset, spacing, endAngle);\n ctx.restore();\n }\n}\nArcElement.id = 'arc';\nArcElement.defaults = {\n borderAlign: 'center',\n borderColor: '#fff',\n borderJoinStyle: undefined,\n borderRadius: 0,\n borderWidth: 2,\n offset: 0,\n spacing: 0,\n angle: undefined,\n};\nArcElement.defaultRoutes = {\n backgroundColor: 'backgroundColor'\n};\n\nfunction setStyle(ctx, options, style = options) {\n ctx.lineCap = valueOrDefault(style.borderCapStyle, options.borderCapStyle);\n ctx.setLineDash(valueOrDefault(style.borderDash, options.borderDash));\n ctx.lineDashOffset = valueOrDefault(style.borderDashOffset, options.borderDashOffset);\n ctx.lineJoin = valueOrDefault(style.borderJoinStyle, options.borderJoinStyle);\n ctx.lineWidth = valueOrDefault(style.borderWidth, options.borderWidth);\n ctx.strokeStyle = valueOrDefault(style.borderColor, options.borderColor);\n}\nfunction lineTo(ctx, previous, target) {\n ctx.lineTo(target.x, target.y);\n}\nfunction getLineMethod(options) {\n if (options.stepped) {\n return _steppedLineTo;\n }\n if (options.tension || options.cubicInterpolationMode === 'monotone') {\n return _bezierCurveTo;\n }\n return lineTo;\n}\nfunction pathVars(points, segment, params = {}) {\n const count = points.length;\n const {start: paramsStart = 0, end: paramsEnd = count - 1} = params;\n const {start: segmentStart, end: segmentEnd} = segment;\n const start = Math.max(paramsStart, segmentStart);\n const end = Math.min(paramsEnd, segmentEnd);\n const outside = paramsStart < segmentStart && paramsEnd < segmentStart || paramsStart > segmentEnd && paramsEnd > segmentEnd;\n return {\n count,\n start,\n loop: segment.loop,\n ilen: end < start && !outside ? count + end - start : end - start\n };\n}\nfunction pathSegment(ctx, line, segment, params) {\n const {points, options} = line;\n const {count, start, loop, ilen} = pathVars(points, segment, params);\n const lineMethod = getLineMethod(options);\n let {move = true, reverse} = params || {};\n let i, point, prev;\n for (i = 0; i <= ilen; ++i) {\n point = points[(start + (reverse ? ilen - i : i)) % count];\n if (point.skip) {\n continue;\n } else if (move) {\n ctx.moveTo(point.x, point.y);\n move = false;\n } else {\n lineMethod(ctx, prev, point, reverse, options.stepped);\n }\n prev = point;\n }\n if (loop) {\n point = points[(start + (reverse ? ilen : 0)) % count];\n lineMethod(ctx, prev, point, reverse, options.stepped);\n }\n return !!loop;\n}\nfunction fastPathSegment(ctx, line, segment, params) {\n const points = line.points;\n const {count, start, ilen} = pathVars(points, segment, params);\n const {move = true, reverse} = params || {};\n let avgX = 0;\n let countX = 0;\n let i, point, prevX, minY, maxY, lastY;\n const pointIndex = (index) => (start + (reverse ? ilen - index : index)) % count;\n const drawX = () => {\n if (minY !== maxY) {\n ctx.lineTo(avgX, maxY);\n ctx.lineTo(avgX, minY);\n ctx.lineTo(avgX, lastY);\n }\n };\n if (move) {\n point = points[pointIndex(0)];\n ctx.moveTo(point.x, point.y);\n }\n for (i = 0; i <= ilen; ++i) {\n point = points[pointIndex(i)];\n if (point.skip) {\n continue;\n }\n const x = point.x;\n const y = point.y;\n const truncX = x | 0;\n if (truncX === prevX) {\n if (y < minY) {\n minY = y;\n } else if (y > maxY) {\n maxY = y;\n }\n avgX = (countX * avgX + x) / ++countX;\n } else {\n drawX();\n ctx.lineTo(x, y);\n prevX = truncX;\n countX = 0;\n minY = maxY = y;\n }\n lastY = y;\n }\n drawX();\n}\nfunction _getSegmentMethod(line) {\n const opts = line.options;\n const borderDash = opts.borderDash && opts.borderDash.length;\n const useFastPath = !line._decimated && !line._loop && !opts.tension && opts.cubicInterpolationMode !== 'monotone' && !opts.stepped && !borderDash;\n return useFastPath ? fastPathSegment : pathSegment;\n}\nfunction _getInterpolationMethod(options) {\n if (options.stepped) {\n return _steppedInterpolation;\n }\n if (options.tension || options.cubicInterpolationMode === 'monotone') {\n return _bezierInterpolation;\n }\n return _pointInLine;\n}\nfunction strokePathWithCache(ctx, line, start, count) {\n let path = line._path;\n if (!path) {\n path = line._path = new Path2D();\n if (line.path(path, start, count)) {\n path.closePath();\n }\n }\n setStyle(ctx, line.options);\n ctx.stroke(path);\n}\nfunction strokePathDirect(ctx, line, start, count) {\n const {segments, options} = line;\n const segmentMethod = _getSegmentMethod(line);\n for (const segment of segments) {\n setStyle(ctx, options, segment.style);\n ctx.beginPath();\n if (segmentMethod(ctx, line, segment, {start, end: start + count - 1})) {\n ctx.closePath();\n }\n ctx.stroke();\n }\n}\nconst usePath2D = typeof Path2D === 'function';\nfunction draw(ctx, line, start, count) {\n if (usePath2D && !line.options.segment) {\n strokePathWithCache(ctx, line, start, count);\n } else {\n strokePathDirect(ctx, line, start, count);\n }\n}\nclass LineElement extends Element {\n constructor(cfg) {\n super();\n this.animated = true;\n this.options = undefined;\n this._chart = undefined;\n this._loop = undefined;\n this._fullLoop = undefined;\n this._path = undefined;\n this._points = undefined;\n this._segments = undefined;\n this._decimated = false;\n this._pointsUpdated = false;\n this._datasetIndex = undefined;\n if (cfg) {\n Object.assign(this, cfg);\n }\n }\n updateControlPoints(chartArea, indexAxis) {\n const options = this.options;\n if ((options.tension || options.cubicInterpolationMode === 'monotone') && !options.stepped && !this._pointsUpdated) {\n const loop = options.spanGaps ? this._loop : this._fullLoop;\n _updateBezierControlPoints(this._points, options, chartArea, loop, indexAxis);\n this._pointsUpdated = true;\n }\n }\n set points(points) {\n this._points = points;\n delete this._segments;\n delete this._path;\n this._pointsUpdated = false;\n }\n get points() {\n return this._points;\n }\n get segments() {\n return this._segments || (this._segments = _computeSegments(this, this.options.segment));\n }\n first() {\n const segments = this.segments;\n const points = this.points;\n return segments.length && points[segments[0].start];\n }\n last() {\n const segments = this.segments;\n const points = this.points;\n const count = segments.length;\n return count && points[segments[count - 1].end];\n }\n interpolate(point, property) {\n const options = this.options;\n const value = point[property];\n const points = this.points;\n const segments = _boundSegments(this, {property, start: value, end: value});\n if (!segments.length) {\n return;\n }\n const result = [];\n const _interpolate = _getInterpolationMethod(options);\n let i, ilen;\n for (i = 0, ilen = segments.length; i < ilen; ++i) {\n const {start, end} = segments[i];\n const p1 = points[start];\n const p2 = points[end];\n if (p1 === p2) {\n result.push(p1);\n continue;\n }\n const t = Math.abs((value - p1[property]) / (p2[property] - p1[property]));\n const interpolated = _interpolate(p1, p2, t, options.stepped);\n interpolated[property] = point[property];\n result.push(interpolated);\n }\n return result.length === 1 ? result[0] : result;\n }\n pathSegment(ctx, segment, params) {\n const segmentMethod = _getSegmentMethod(this);\n return segmentMethod(ctx, this, segment, params);\n }\n path(ctx, start, count) {\n const segments = this.segments;\n const segmentMethod = _getSegmentMethod(this);\n let loop = this._loop;\n start = start || 0;\n count = count || (this.points.length - start);\n for (const segment of segments) {\n loop &= segmentMethod(ctx, this, segment, {start, end: start + count - 1});\n }\n return !!loop;\n }\n draw(ctx, chartArea, start, count) {\n const options = this.options || {};\n const points = this.points || [];\n if (points.length && options.borderWidth) {\n ctx.save();\n draw(ctx, this, start, count);\n ctx.restore();\n }\n if (this.animated) {\n this._pointsUpdated = false;\n this._path = undefined;\n }\n }\n}\nLineElement.id = 'line';\nLineElement.defaults = {\n borderCapStyle: 'butt',\n borderDash: [],\n borderDashOffset: 0,\n borderJoinStyle: 'miter',\n borderWidth: 3,\n capBezierPoints: true,\n cubicInterpolationMode: 'default',\n fill: false,\n spanGaps: false,\n stepped: false,\n tension: 0,\n};\nLineElement.defaultRoutes = {\n backgroundColor: 'backgroundColor',\n borderColor: 'borderColor'\n};\nLineElement.descriptors = {\n _scriptable: true,\n _indexable: (name) => name !== 'borderDash' && name !== 'fill',\n};\n\nfunction inRange$1(el, pos, axis, useFinalPosition) {\n const options = el.options;\n const {[axis]: value} = el.getProps([axis], useFinalPosition);\n return (Math.abs(pos - value) < options.radius + options.hitRadius);\n}\nclass PointElement extends Element {\n constructor(cfg) {\n super();\n this.options = undefined;\n this.parsed = undefined;\n this.skip = undefined;\n this.stop = undefined;\n if (cfg) {\n Object.assign(this, cfg);\n }\n }\n inRange(mouseX, mouseY, useFinalPosition) {\n const options = this.options;\n const {x, y} = this.getProps(['x', 'y'], useFinalPosition);\n return ((Math.pow(mouseX - x, 2) + Math.pow(mouseY - y, 2)) < Math.pow(options.hitRadius + options.radius, 2));\n }\n inXRange(mouseX, useFinalPosition) {\n return inRange$1(this, mouseX, 'x', useFinalPosition);\n }\n inYRange(mouseY, useFinalPosition) {\n return inRange$1(this, mouseY, 'y', useFinalPosition);\n }\n getCenterPoint(useFinalPosition) {\n const {x, y} = this.getProps(['x', 'y'], useFinalPosition);\n return {x, y};\n }\n size(options) {\n options = options || this.options || {};\n let radius = options.radius || 0;\n radius = Math.max(radius, radius && options.hoverRadius || 0);\n const borderWidth = radius && options.borderWidth || 0;\n return (radius + borderWidth) * 2;\n }\n draw(ctx, area) {\n const options = this.options;\n if (this.skip || options.radius < 0.1 || !_isPointInArea(this, area, this.size(options) / 2)) {\n return;\n }\n ctx.strokeStyle = options.borderColor;\n ctx.lineWidth = options.borderWidth;\n ctx.fillStyle = options.backgroundColor;\n drawPoint(ctx, options, this.x, this.y);\n }\n getRange() {\n const options = this.options || {};\n return options.radius + options.hitRadius;\n }\n}\nPointElement.id = 'point';\nPointElement.defaults = {\n borderWidth: 1,\n hitRadius: 1,\n hoverBorderWidth: 1,\n hoverRadius: 4,\n pointStyle: 'circle',\n radius: 3,\n rotation: 0\n};\nPointElement.defaultRoutes = {\n backgroundColor: 'backgroundColor',\n borderColor: 'borderColor'\n};\n\nfunction getBarBounds(bar, useFinalPosition) {\n const {x, y, base, width, height} = bar.getProps(['x', 'y', 'base', 'width', 'height'], useFinalPosition);\n let left, right, top, bottom, half;\n if (bar.horizontal) {\n half = height / 2;\n left = Math.min(x, base);\n right = Math.max(x, base);\n top = y - half;\n bottom = y + half;\n } else {\n half = width / 2;\n left = x - half;\n right = x + half;\n top = Math.min(y, base);\n bottom = Math.max(y, base);\n }\n return {left, top, right, bottom};\n}\nfunction skipOrLimit(skip, value, min, max) {\n return skip ? 0 : _limitValue(value, min, max);\n}\nfunction parseBorderWidth(bar, maxW, maxH) {\n const value = bar.options.borderWidth;\n const skip = bar.borderSkipped;\n const o = toTRBL(value);\n return {\n t: skipOrLimit(skip.top, o.top, 0, maxH),\n r: skipOrLimit(skip.right, o.right, 0, maxW),\n b: skipOrLimit(skip.bottom, o.bottom, 0, maxH),\n l: skipOrLimit(skip.left, o.left, 0, maxW)\n };\n}\nfunction parseBorderRadius(bar, maxW, maxH) {\n const {enableBorderRadius} = bar.getProps(['enableBorderRadius']);\n const value = bar.options.borderRadius;\n const o = toTRBLCorners(value);\n const maxR = Math.min(maxW, maxH);\n const skip = bar.borderSkipped;\n const enableBorder = enableBorderRadius || isObject(value);\n return {\n topLeft: skipOrLimit(!enableBorder || skip.top || skip.left, o.topLeft, 0, maxR),\n topRight: skipOrLimit(!enableBorder || skip.top || skip.right, o.topRight, 0, maxR),\n bottomLeft: skipOrLimit(!enableBorder || skip.bottom || skip.left, o.bottomLeft, 0, maxR),\n bottomRight: skipOrLimit(!enableBorder || skip.bottom || skip.right, o.bottomRight, 0, maxR)\n };\n}\nfunction boundingRects(bar) {\n const bounds = getBarBounds(bar);\n const width = bounds.right - bounds.left;\n const height = bounds.bottom - bounds.top;\n const border = parseBorderWidth(bar, width / 2, height / 2);\n const radius = parseBorderRadius(bar, width / 2, height / 2);\n return {\n outer: {\n x: bounds.left,\n y: bounds.top,\n w: width,\n h: height,\n radius\n },\n inner: {\n x: bounds.left + border.l,\n y: bounds.top + border.t,\n w: width - border.l - border.r,\n h: height - border.t - border.b,\n radius: {\n topLeft: Math.max(0, radius.topLeft - Math.max(border.t, border.l)),\n topRight: Math.max(0, radius.topRight - Math.max(border.t, border.r)),\n bottomLeft: Math.max(0, radius.bottomLeft - Math.max(border.b, border.l)),\n bottomRight: Math.max(0, radius.bottomRight - Math.max(border.b, border.r)),\n }\n }\n };\n}\nfunction inRange(bar, x, y, useFinalPosition) {\n const skipX = x === null;\n const skipY = y === null;\n const skipBoth = skipX && skipY;\n const bounds = bar && !skipBoth && getBarBounds(bar, useFinalPosition);\n return bounds\n\t\t&& (skipX || _isBetween(x, bounds.left, bounds.right))\n\t\t&& (skipY || _isBetween(y, bounds.top, bounds.bottom));\n}\nfunction hasRadius(radius) {\n return radius.topLeft || radius.topRight || radius.bottomLeft || radius.bottomRight;\n}\nfunction addNormalRectPath(ctx, rect) {\n ctx.rect(rect.x, rect.y, rect.w, rect.h);\n}\nfunction inflateRect(rect, amount, refRect = {}) {\n const x = rect.x !== refRect.x ? -amount : 0;\n const y = rect.y !== refRect.y ? -amount : 0;\n const w = (rect.x + rect.w !== refRect.x + refRect.w ? amount : 0) - x;\n const h = (rect.y + rect.h !== refRect.y + refRect.h ? amount : 0) - y;\n return {\n x: rect.x + x,\n y: rect.y + y,\n w: rect.w + w,\n h: rect.h + h,\n radius: rect.radius\n };\n}\nclass BarElement extends Element {\n constructor(cfg) {\n super();\n this.options = undefined;\n this.horizontal = undefined;\n this.base = undefined;\n this.width = undefined;\n this.height = undefined;\n this.inflateAmount = undefined;\n if (cfg) {\n Object.assign(this, cfg);\n }\n }\n draw(ctx) {\n const {inflateAmount, options: {borderColor, backgroundColor}} = this;\n const {inner, outer} = boundingRects(this);\n const addRectPath = hasRadius(outer.radius) ? addRoundedRectPath : addNormalRectPath;\n ctx.save();\n if (outer.w !== inner.w || outer.h !== inner.h) {\n ctx.beginPath();\n addRectPath(ctx, inflateRect(outer, inflateAmount, inner));\n ctx.clip();\n addRectPath(ctx, inflateRect(inner, -inflateAmount, outer));\n ctx.fillStyle = borderColor;\n ctx.fill('evenodd');\n }\n ctx.beginPath();\n addRectPath(ctx, inflateRect(inner, inflateAmount));\n ctx.fillStyle = backgroundColor;\n ctx.fill();\n ctx.restore();\n }\n inRange(mouseX, mouseY, useFinalPosition) {\n return inRange(this, mouseX, mouseY, useFinalPosition);\n }\n inXRange(mouseX, useFinalPosition) {\n return inRange(this, mouseX, null, useFinalPosition);\n }\n inYRange(mouseY, useFinalPosition) {\n return inRange(this, null, mouseY, useFinalPosition);\n }\n getCenterPoint(useFinalPosition) {\n const {x, y, base, horizontal} = this.getProps(['x', 'y', 'base', 'horizontal'], useFinalPosition);\n return {\n x: horizontal ? (x + base) / 2 : x,\n y: horizontal ? y : (y + base) / 2\n };\n }\n getRange(axis) {\n return axis === 'x' ? this.width / 2 : this.height / 2;\n }\n}\nBarElement.id = 'bar';\nBarElement.defaults = {\n borderSkipped: 'start',\n borderWidth: 0,\n borderRadius: 0,\n inflateAmount: 'auto',\n pointStyle: undefined\n};\nBarElement.defaultRoutes = {\n backgroundColor: 'backgroundColor',\n borderColor: 'borderColor'\n};\n\nvar elements = /*#__PURE__*/Object.freeze({\n__proto__: null,\nArcElement: ArcElement,\nLineElement: LineElement,\nPointElement: PointElement,\nBarElement: BarElement\n});\n\nfunction lttbDecimation(data, start, count, availableWidth, options) {\n const samples = options.samples || availableWidth;\n if (samples >= count) {\n return data.slice(start, start + count);\n }\n const decimated = [];\n const bucketWidth = (count - 2) / (samples - 2);\n let sampledIndex = 0;\n const endIndex = start + count - 1;\n let a = start;\n let i, maxAreaPoint, maxArea, area, nextA;\n decimated[sampledIndex++] = data[a];\n for (i = 0; i < samples - 2; i++) {\n let avgX = 0;\n let avgY = 0;\n let j;\n const avgRangeStart = Math.floor((i + 1) * bucketWidth) + 1 + start;\n const avgRangeEnd = Math.min(Math.floor((i + 2) * bucketWidth) + 1, count) + start;\n const avgRangeLength = avgRangeEnd - avgRangeStart;\n for (j = avgRangeStart; j < avgRangeEnd; j++) {\n avgX += data[j].x;\n avgY += data[j].y;\n }\n avgX /= avgRangeLength;\n avgY /= avgRangeLength;\n const rangeOffs = Math.floor(i * bucketWidth) + 1 + start;\n const rangeTo = Math.min(Math.floor((i + 1) * bucketWidth) + 1, count) + start;\n const {x: pointAx, y: pointAy} = data[a];\n maxArea = area = -1;\n for (j = rangeOffs; j < rangeTo; j++) {\n area = 0.5 * Math.abs(\n (pointAx - avgX) * (data[j].y - pointAy) -\n (pointAx - data[j].x) * (avgY - pointAy)\n );\n if (area > maxArea) {\n maxArea = area;\n maxAreaPoint = data[j];\n nextA = j;\n }\n }\n decimated[sampledIndex++] = maxAreaPoint;\n a = nextA;\n }\n decimated[sampledIndex++] = data[endIndex];\n return decimated;\n}\nfunction minMaxDecimation(data, start, count, availableWidth) {\n let avgX = 0;\n let countX = 0;\n let i, point, x, y, prevX, minIndex, maxIndex, startIndex, minY, maxY;\n const decimated = [];\n const endIndex = start + count - 1;\n const xMin = data[start].x;\n const xMax = data[endIndex].x;\n const dx = xMax - xMin;\n for (i = start; i < start + count; ++i) {\n point = data[i];\n x = (point.x - xMin) / dx * availableWidth;\n y = point.y;\n const truncX = x | 0;\n if (truncX === prevX) {\n if (y < minY) {\n minY = y;\n minIndex = i;\n } else if (y > maxY) {\n maxY = y;\n maxIndex = i;\n }\n avgX = (countX * avgX + point.x) / ++countX;\n } else {\n const lastIndex = i - 1;\n if (!isNullOrUndef(minIndex) && !isNullOrUndef(maxIndex)) {\n const intermediateIndex1 = Math.min(minIndex, maxIndex);\n const intermediateIndex2 = Math.max(minIndex, maxIndex);\n if (intermediateIndex1 !== startIndex && intermediateIndex1 !== lastIndex) {\n decimated.push({\n ...data[intermediateIndex1],\n x: avgX,\n });\n }\n if (intermediateIndex2 !== startIndex && intermediateIndex2 !== lastIndex) {\n decimated.push({\n ...data[intermediateIndex2],\n x: avgX\n });\n }\n }\n if (i > 0 && lastIndex !== startIndex) {\n decimated.push(data[lastIndex]);\n }\n decimated.push(point);\n prevX = truncX;\n countX = 0;\n minY = maxY = y;\n minIndex = maxIndex = startIndex = i;\n }\n }\n return decimated;\n}\nfunction cleanDecimatedDataset(dataset) {\n if (dataset._decimated) {\n const data = dataset._data;\n delete dataset._decimated;\n delete dataset._data;\n Object.defineProperty(dataset, 'data', {value: data});\n }\n}\nfunction cleanDecimatedData(chart) {\n chart.data.datasets.forEach((dataset) => {\n cleanDecimatedDataset(dataset);\n });\n}\nfunction getStartAndCountOfVisiblePointsSimplified(meta, points) {\n const pointCount = points.length;\n let start = 0;\n let count;\n const {iScale} = meta;\n const {min, max, minDefined, maxDefined} = iScale.getUserBounds();\n if (minDefined) {\n start = _limitValue(_lookupByKey(points, iScale.axis, min).lo, 0, pointCount - 1);\n }\n if (maxDefined) {\n count = _limitValue(_lookupByKey(points, iScale.axis, max).hi + 1, start, pointCount) - start;\n } else {\n count = pointCount - start;\n }\n return {start, count};\n}\nvar plugin_decimation = {\n id: 'decimation',\n defaults: {\n algorithm: 'min-max',\n enabled: false,\n },\n beforeElementsUpdate: (chart, args, options) => {\n if (!options.enabled) {\n cleanDecimatedData(chart);\n return;\n }\n const availableWidth = chart.width;\n chart.data.datasets.forEach((dataset, datasetIndex) => {\n const {_data, indexAxis} = dataset;\n const meta = chart.getDatasetMeta(datasetIndex);\n const data = _data || dataset.data;\n if (resolve([indexAxis, chart.options.indexAxis]) === 'y') {\n return;\n }\n if (!meta.controller.supportsDecimation) {\n return;\n }\n const xAxis = chart.scales[meta.xAxisID];\n if (xAxis.type !== 'linear' && xAxis.type !== 'time') {\n return;\n }\n if (chart.options.parsing) {\n return;\n }\n let {start, count} = getStartAndCountOfVisiblePointsSimplified(meta, data);\n const threshold = options.threshold || 4 * availableWidth;\n if (count <= threshold) {\n cleanDecimatedDataset(dataset);\n return;\n }\n if (isNullOrUndef(_data)) {\n dataset._data = data;\n delete dataset.data;\n Object.defineProperty(dataset, 'data', {\n configurable: true,\n enumerable: true,\n get: function() {\n return this._decimated;\n },\n set: function(d) {\n this._data = d;\n }\n });\n }\n let decimated;\n switch (options.algorithm) {\n case 'lttb':\n decimated = lttbDecimation(data, start, count, availableWidth, options);\n break;\n case 'min-max':\n decimated = minMaxDecimation(data, start, count, availableWidth);\n break;\n default:\n throw new Error(`Unsupported decimation algorithm '${options.algorithm}'`);\n }\n dataset._decimated = decimated;\n });\n },\n destroy(chart) {\n cleanDecimatedData(chart);\n }\n};\n\nfunction _segments(line, target, property) {\n const segments = line.segments;\n const points = line.points;\n const tpoints = target.points;\n const parts = [];\n for (const segment of segments) {\n let {start, end} = segment;\n end = _findSegmentEnd(start, end, points);\n const bounds = _getBounds(property, points[start], points[end], segment.loop);\n if (!target.segments) {\n parts.push({\n source: segment,\n target: bounds,\n start: points[start],\n end: points[end]\n });\n continue;\n }\n const targetSegments = _boundSegments(target, bounds);\n for (const tgt of targetSegments) {\n const subBounds = _getBounds(property, tpoints[tgt.start], tpoints[tgt.end], tgt.loop);\n const fillSources = _boundSegment(segment, points, subBounds);\n for (const fillSource of fillSources) {\n parts.push({\n source: fillSource,\n target: tgt,\n start: {\n [property]: _getEdge(bounds, subBounds, 'start', Math.max)\n },\n end: {\n [property]: _getEdge(bounds, subBounds, 'end', Math.min)\n }\n });\n }\n }\n }\n return parts;\n}\nfunction _getBounds(property, first, last, loop) {\n if (loop) {\n return;\n }\n let start = first[property];\n let end = last[property];\n if (property === 'angle') {\n start = _normalizeAngle(start);\n end = _normalizeAngle(end);\n }\n return {property, start, end};\n}\nfunction _pointsFromSegments(boundary, line) {\n const {x = null, y = null} = boundary || {};\n const linePoints = line.points;\n const points = [];\n line.segments.forEach(({start, end}) => {\n end = _findSegmentEnd(start, end, linePoints);\n const first = linePoints[start];\n const last = linePoints[end];\n if (y !== null) {\n points.push({x: first.x, y});\n points.push({x: last.x, y});\n } else if (x !== null) {\n points.push({x, y: first.y});\n points.push({x, y: last.y});\n }\n });\n return points;\n}\nfunction _findSegmentEnd(start, end, points) {\n for (;end > start; end--) {\n const point = points[end];\n if (!isNaN(point.x) && !isNaN(point.y)) {\n break;\n }\n }\n return end;\n}\nfunction _getEdge(a, b, prop, fn) {\n if (a && b) {\n return fn(a[prop], b[prop]);\n }\n return a ? a[prop] : b ? b[prop] : 0;\n}\n\nfunction _createBoundaryLine(boundary, line) {\n let points = [];\n let _loop = false;\n if (isArray(boundary)) {\n _loop = true;\n points = boundary;\n } else {\n points = _pointsFromSegments(boundary, line);\n }\n return points.length ? new LineElement({\n points,\n options: {tension: 0},\n _loop,\n _fullLoop: _loop\n }) : null;\n}\n\nfunction _resolveTarget(sources, index, propagate) {\n const source = sources[index];\n let fill = source.fill;\n const visited = [index];\n let target;\n if (!propagate) {\n return fill;\n }\n while (fill !== false && visited.indexOf(fill) === -1) {\n if (!isNumberFinite(fill)) {\n return fill;\n }\n target = sources[fill];\n if (!target) {\n return false;\n }\n if (target.visible) {\n return fill;\n }\n visited.push(fill);\n fill = target.fill;\n }\n return false;\n}\nfunction _decodeFill(line, index, count) {\n const fill = parseFillOption(line);\n if (isObject(fill)) {\n return isNaN(fill.value) ? false : fill;\n }\n let target = parseFloat(fill);\n if (isNumberFinite(target) && Math.floor(target) === target) {\n return decodeTargetIndex(fill[0], index, target, count);\n }\n return ['origin', 'start', 'end', 'stack', 'shape'].indexOf(fill) >= 0 && fill;\n}\nfunction decodeTargetIndex(firstCh, index, target, count) {\n if (firstCh === '-' || firstCh === '+') {\n target = index + target;\n }\n if (target === index || target < 0 || target >= count) {\n return false;\n }\n return target;\n}\nfunction _getTargetPixel(fill, scale) {\n let pixel = null;\n if (fill === 'start') {\n pixel = scale.bottom;\n } else if (fill === 'end') {\n pixel = scale.top;\n } else if (isObject(fill)) {\n pixel = scale.getPixelForValue(fill.value);\n } else if (scale.getBasePixel) {\n pixel = scale.getBasePixel();\n }\n return pixel;\n}\nfunction _getTargetValue(fill, scale, startValue) {\n let value;\n if (fill === 'start') {\n value = startValue;\n } else if (fill === 'end') {\n value = scale.options.reverse ? scale.min : scale.max;\n } else if (isObject(fill)) {\n value = fill.value;\n } else {\n value = scale.getBaseValue();\n }\n return value;\n}\nfunction parseFillOption(line) {\n const options = line.options;\n const fillOption = options.fill;\n let fill = valueOrDefault(fillOption && fillOption.target, fillOption);\n if (fill === undefined) {\n fill = !!options.backgroundColor;\n }\n if (fill === false || fill === null) {\n return false;\n }\n if (fill === true) {\n return 'origin';\n }\n return fill;\n}\n\nfunction _buildStackLine(source) {\n const {scale, index, line} = source;\n const points = [];\n const segments = line.segments;\n const sourcePoints = line.points;\n const linesBelow = getLinesBelow(scale, index);\n linesBelow.push(_createBoundaryLine({x: null, y: scale.bottom}, line));\n for (let i = 0; i < segments.length; i++) {\n const segment = segments[i];\n for (let j = segment.start; j <= segment.end; j++) {\n addPointsBelow(points, sourcePoints[j], linesBelow);\n }\n }\n return new LineElement({points, options: {}});\n}\nfunction getLinesBelow(scale, index) {\n const below = [];\n const metas = scale.getMatchingVisibleMetas('line');\n for (let i = 0; i < metas.length; i++) {\n const meta = metas[i];\n if (meta.index === index) {\n break;\n }\n if (!meta.hidden) {\n below.unshift(meta.dataset);\n }\n }\n return below;\n}\nfunction addPointsBelow(points, sourcePoint, linesBelow) {\n const postponed = [];\n for (let j = 0; j < linesBelow.length; j++) {\n const line = linesBelow[j];\n const {first, last, point} = findPoint(line, sourcePoint, 'x');\n if (!point || (first && last)) {\n continue;\n }\n if (first) {\n postponed.unshift(point);\n } else {\n points.push(point);\n if (!last) {\n break;\n }\n }\n }\n points.push(...postponed);\n}\nfunction findPoint(line, sourcePoint, property) {\n const point = line.interpolate(sourcePoint, property);\n if (!point) {\n return {};\n }\n const pointValue = point[property];\n const segments = line.segments;\n const linePoints = line.points;\n let first = false;\n let last = false;\n for (let i = 0; i < segments.length; i++) {\n const segment = segments[i];\n const firstValue = linePoints[segment.start][property];\n const lastValue = linePoints[segment.end][property];\n if (_isBetween(pointValue, firstValue, lastValue)) {\n first = pointValue === firstValue;\n last = pointValue === lastValue;\n break;\n }\n }\n return {first, last, point};\n}\n\nclass simpleArc {\n constructor(opts) {\n this.x = opts.x;\n this.y = opts.y;\n this.radius = opts.radius;\n }\n pathSegment(ctx, bounds, opts) {\n const {x, y, radius} = this;\n bounds = bounds || {start: 0, end: TAU};\n ctx.arc(x, y, radius, bounds.end, bounds.start, true);\n return !opts.bounds;\n }\n interpolate(point) {\n const {x, y, radius} = this;\n const angle = point.angle;\n return {\n x: x + Math.cos(angle) * radius,\n y: y + Math.sin(angle) * radius,\n angle\n };\n }\n}\n\nfunction _getTarget(source) {\n const {chart, fill, line} = source;\n if (isNumberFinite(fill)) {\n return getLineByIndex(chart, fill);\n }\n if (fill === 'stack') {\n return _buildStackLine(source);\n }\n if (fill === 'shape') {\n return true;\n }\n const boundary = computeBoundary(source);\n if (boundary instanceof simpleArc) {\n return boundary;\n }\n return _createBoundaryLine(boundary, line);\n}\nfunction getLineByIndex(chart, index) {\n const meta = chart.getDatasetMeta(index);\n const visible = meta && chart.isDatasetVisible(index);\n return visible ? meta.dataset : null;\n}\nfunction computeBoundary(source) {\n const scale = source.scale || {};\n if (scale.getPointPositionForValue) {\n return computeCircularBoundary(source);\n }\n return computeLinearBoundary(source);\n}\nfunction computeLinearBoundary(source) {\n const {scale = {}, fill} = source;\n const pixel = _getTargetPixel(fill, scale);\n if (isNumberFinite(pixel)) {\n const horizontal = scale.isHorizontal();\n return {\n x: horizontal ? pixel : null,\n y: horizontal ? null : pixel\n };\n }\n return null;\n}\nfunction computeCircularBoundary(source) {\n const {scale, fill} = source;\n const options = scale.options;\n const length = scale.getLabels().length;\n const start = options.reverse ? scale.max : scale.min;\n const value = _getTargetValue(fill, scale, start);\n const target = [];\n if (options.grid.circular) {\n const center = scale.getPointPositionForValue(0, start);\n return new simpleArc({\n x: center.x,\n y: center.y,\n radius: scale.getDistanceFromCenterForValue(value)\n });\n }\n for (let i = 0; i < length; ++i) {\n target.push(scale.getPointPositionForValue(i, value));\n }\n return target;\n}\n\nfunction _drawfill(ctx, source, area) {\n const target = _getTarget(source);\n const {line, scale, axis} = source;\n const lineOpts = line.options;\n const fillOption = lineOpts.fill;\n const color = lineOpts.backgroundColor;\n const {above = color, below = color} = fillOption || {};\n if (target && line.points.length) {\n clipArea(ctx, area);\n doFill(ctx, {line, target, above, below, area, scale, axis});\n unclipArea(ctx);\n }\n}\nfunction doFill(ctx, cfg) {\n const {line, target, above, below, area, scale} = cfg;\n const property = line._loop ? 'angle' : cfg.axis;\n ctx.save();\n if (property === 'x' && below !== above) {\n clipVertical(ctx, target, area.top);\n fill(ctx, {line, target, color: above, scale, property});\n ctx.restore();\n ctx.save();\n clipVertical(ctx, target, area.bottom);\n }\n fill(ctx, {line, target, color: below, scale, property});\n ctx.restore();\n}\nfunction clipVertical(ctx, target, clipY) {\n const {segments, points} = target;\n let first = true;\n let lineLoop = false;\n ctx.beginPath();\n for (const segment of segments) {\n const {start, end} = segment;\n const firstPoint = points[start];\n const lastPoint = points[_findSegmentEnd(start, end, points)];\n if (first) {\n ctx.moveTo(firstPoint.x, firstPoint.y);\n first = false;\n } else {\n ctx.lineTo(firstPoint.x, clipY);\n ctx.lineTo(firstPoint.x, firstPoint.y);\n }\n lineLoop = !!target.pathSegment(ctx, segment, {move: lineLoop});\n if (lineLoop) {\n ctx.closePath();\n } else {\n ctx.lineTo(lastPoint.x, clipY);\n }\n }\n ctx.lineTo(target.first().x, clipY);\n ctx.closePath();\n ctx.clip();\n}\nfunction fill(ctx, cfg) {\n const {line, target, property, color, scale} = cfg;\n const segments = _segments(line, target, property);\n for (const {source: src, target: tgt, start, end} of segments) {\n const {style: {backgroundColor = color} = {}} = src;\n const notShape = target !== true;\n ctx.save();\n ctx.fillStyle = backgroundColor;\n clipBounds(ctx, scale, notShape && _getBounds(property, start, end));\n ctx.beginPath();\n const lineLoop = !!line.pathSegment(ctx, src);\n let loop;\n if (notShape) {\n if (lineLoop) {\n ctx.closePath();\n } else {\n interpolatedLineTo(ctx, target, end, property);\n }\n const targetLoop = !!target.pathSegment(ctx, tgt, {move: lineLoop, reverse: true});\n loop = lineLoop && targetLoop;\n if (!loop) {\n interpolatedLineTo(ctx, target, start, property);\n }\n }\n ctx.closePath();\n ctx.fill(loop ? 'evenodd' : 'nonzero');\n ctx.restore();\n }\n}\nfunction clipBounds(ctx, scale, bounds) {\n const {top, bottom} = scale.chart.chartArea;\n const {property, start, end} = bounds || {};\n if (property === 'x') {\n ctx.beginPath();\n ctx.rect(start, top, end - start, bottom - top);\n ctx.clip();\n }\n}\nfunction interpolatedLineTo(ctx, target, point, property) {\n const interpolatedPoint = target.interpolate(point, property);\n if (interpolatedPoint) {\n ctx.lineTo(interpolatedPoint.x, interpolatedPoint.y);\n }\n}\n\nvar index = {\n id: 'filler',\n afterDatasetsUpdate(chart, _args, options) {\n const count = (chart.data.datasets || []).length;\n const sources = [];\n let meta, i, line, source;\n for (i = 0; i < count; ++i) {\n meta = chart.getDatasetMeta(i);\n line = meta.dataset;\n source = null;\n if (line && line.options && line instanceof LineElement) {\n source = {\n visible: chart.isDatasetVisible(i),\n index: i,\n fill: _decodeFill(line, i, count),\n chart,\n axis: meta.controller.options.indexAxis,\n scale: meta.vScale,\n line,\n };\n }\n meta.$filler = source;\n sources.push(source);\n }\n for (i = 0; i < count; ++i) {\n source = sources[i];\n if (!source || source.fill === false) {\n continue;\n }\n source.fill = _resolveTarget(sources, i, options.propagate);\n }\n },\n beforeDraw(chart, _args, options) {\n const draw = options.drawTime === 'beforeDraw';\n const metasets = chart.getSortedVisibleDatasetMetas();\n const area = chart.chartArea;\n for (let i = metasets.length - 1; i >= 0; --i) {\n const source = metasets[i].$filler;\n if (!source) {\n continue;\n }\n source.line.updateControlPoints(area, source.axis);\n if (draw) {\n _drawfill(chart.ctx, source, area);\n }\n }\n },\n beforeDatasetsDraw(chart, _args, options) {\n if (options.drawTime !== 'beforeDatasetsDraw') {\n return;\n }\n const metasets = chart.getSortedVisibleDatasetMetas();\n for (let i = metasets.length - 1; i >= 0; --i) {\n const source = metasets[i].$filler;\n if (source) {\n _drawfill(chart.ctx, source, chart.chartArea);\n }\n }\n },\n beforeDatasetDraw(chart, args, options) {\n const source = args.meta.$filler;\n if (!source || source.fill === false || options.drawTime !== 'beforeDatasetDraw') {\n return;\n }\n _drawfill(chart.ctx, source, chart.chartArea);\n },\n defaults: {\n propagate: true,\n drawTime: 'beforeDatasetDraw'\n }\n};\n\nconst getBoxSize = (labelOpts, fontSize) => {\n let {boxHeight = fontSize, boxWidth = fontSize} = labelOpts;\n if (labelOpts.usePointStyle) {\n boxHeight = Math.min(boxHeight, fontSize);\n boxWidth = Math.min(boxWidth, fontSize);\n }\n return {\n boxWidth,\n boxHeight,\n itemHeight: Math.max(fontSize, boxHeight)\n };\n};\nconst itemsEqual = (a, b) => a !== null && b !== null && a.datasetIndex === b.datasetIndex && a.index === b.index;\nclass Legend extends Element {\n constructor(config) {\n super();\n this._added = false;\n this.legendHitBoxes = [];\n this._hoveredItem = null;\n this.doughnutMode = false;\n this.chart = config.chart;\n this.options = config.options;\n this.ctx = config.ctx;\n this.legendItems = undefined;\n this.columnSizes = undefined;\n this.lineWidths = undefined;\n this.maxHeight = undefined;\n this.maxWidth = undefined;\n this.top = undefined;\n this.bottom = undefined;\n this.left = undefined;\n this.right = undefined;\n this.height = undefined;\n this.width = undefined;\n this._margins = undefined;\n this.position = undefined;\n this.weight = undefined;\n this.fullSize = undefined;\n }\n update(maxWidth, maxHeight, margins) {\n this.maxWidth = maxWidth;\n this.maxHeight = maxHeight;\n this._margins = margins;\n this.setDimensions();\n this.buildLabels();\n this.fit();\n }\n setDimensions() {\n if (this.isHorizontal()) {\n this.width = this.maxWidth;\n this.left = this._margins.left;\n this.right = this.width;\n } else {\n this.height = this.maxHeight;\n this.top = this._margins.top;\n this.bottom = this.height;\n }\n }\n buildLabels() {\n const labelOpts = this.options.labels || {};\n let legendItems = callback(labelOpts.generateLabels, [this.chart], this) || [];\n if (labelOpts.filter) {\n legendItems = legendItems.filter((item) => labelOpts.filter(item, this.chart.data));\n }\n if (labelOpts.sort) {\n legendItems = legendItems.sort((a, b) => labelOpts.sort(a, b, this.chart.data));\n }\n if (this.options.reverse) {\n legendItems.reverse();\n }\n this.legendItems = legendItems;\n }\n fit() {\n const {options, ctx} = this;\n if (!options.display) {\n this.width = this.height = 0;\n return;\n }\n const labelOpts = options.labels;\n const labelFont = toFont(labelOpts.font);\n const fontSize = labelFont.size;\n const titleHeight = this._computeTitleHeight();\n const {boxWidth, itemHeight} = getBoxSize(labelOpts, fontSize);\n let width, height;\n ctx.font = labelFont.string;\n if (this.isHorizontal()) {\n width = this.maxWidth;\n height = this._fitRows(titleHeight, fontSize, boxWidth, itemHeight) + 10;\n } else {\n height = this.maxHeight;\n width = this._fitCols(titleHeight, fontSize, boxWidth, itemHeight) + 10;\n }\n this.width = Math.min(width, options.maxWidth || this.maxWidth);\n this.height = Math.min(height, options.maxHeight || this.maxHeight);\n }\n _fitRows(titleHeight, fontSize, boxWidth, itemHeight) {\n const {ctx, maxWidth, options: {labels: {padding}}} = this;\n const hitboxes = this.legendHitBoxes = [];\n const lineWidths = this.lineWidths = [0];\n const lineHeight = itemHeight + padding;\n let totalHeight = titleHeight;\n ctx.textAlign = 'left';\n ctx.textBaseline = 'middle';\n let row = -1;\n let top = -lineHeight;\n this.legendItems.forEach((legendItem, i) => {\n const itemWidth = boxWidth + (fontSize / 2) + ctx.measureText(legendItem.text).width;\n if (i === 0 || lineWidths[lineWidths.length - 1] + itemWidth + 2 * padding > maxWidth) {\n totalHeight += lineHeight;\n lineWidths[lineWidths.length - (i > 0 ? 0 : 1)] = 0;\n top += lineHeight;\n row++;\n }\n hitboxes[i] = {left: 0, top, row, width: itemWidth, height: itemHeight};\n lineWidths[lineWidths.length - 1] += itemWidth + padding;\n });\n return totalHeight;\n }\n _fitCols(titleHeight, fontSize, boxWidth, itemHeight) {\n const {ctx, maxHeight, options: {labels: {padding}}} = this;\n const hitboxes = this.legendHitBoxes = [];\n const columnSizes = this.columnSizes = [];\n const heightLimit = maxHeight - titleHeight;\n let totalWidth = padding;\n let currentColWidth = 0;\n let currentColHeight = 0;\n let left = 0;\n let col = 0;\n this.legendItems.forEach((legendItem, i) => {\n const itemWidth = boxWidth + (fontSize / 2) + ctx.measureText(legendItem.text).width;\n if (i > 0 && currentColHeight + itemHeight + 2 * padding > heightLimit) {\n totalWidth += currentColWidth + padding;\n columnSizes.push({width: currentColWidth, height: currentColHeight});\n left += currentColWidth + padding;\n col++;\n currentColWidth = currentColHeight = 0;\n }\n hitboxes[i] = {left, top: currentColHeight, col, width: itemWidth, height: itemHeight};\n currentColWidth = Math.max(currentColWidth, itemWidth);\n currentColHeight += itemHeight + padding;\n });\n totalWidth += currentColWidth;\n columnSizes.push({width: currentColWidth, height: currentColHeight});\n return totalWidth;\n }\n adjustHitBoxes() {\n if (!this.options.display) {\n return;\n }\n const titleHeight = this._computeTitleHeight();\n const {legendHitBoxes: hitboxes, options: {align, labels: {padding}, rtl}} = this;\n const rtlHelper = getRtlAdapter(rtl, this.left, this.width);\n if (this.isHorizontal()) {\n let row = 0;\n let left = _alignStartEnd(align, this.left + padding, this.right - this.lineWidths[row]);\n for (const hitbox of hitboxes) {\n if (row !== hitbox.row) {\n row = hitbox.row;\n left = _alignStartEnd(align, this.left + padding, this.right - this.lineWidths[row]);\n }\n hitbox.top += this.top + titleHeight + padding;\n hitbox.left = rtlHelper.leftForLtr(rtlHelper.x(left), hitbox.width);\n left += hitbox.width + padding;\n }\n } else {\n let col = 0;\n let top = _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - this.columnSizes[col].height);\n for (const hitbox of hitboxes) {\n if (hitbox.col !== col) {\n col = hitbox.col;\n top = _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - this.columnSizes[col].height);\n }\n hitbox.top = top;\n hitbox.left += this.left + padding;\n hitbox.left = rtlHelper.leftForLtr(rtlHelper.x(hitbox.left), hitbox.width);\n top += hitbox.height + padding;\n }\n }\n }\n isHorizontal() {\n return this.options.position === 'top' || this.options.position === 'bottom';\n }\n draw() {\n if (this.options.display) {\n const ctx = this.ctx;\n clipArea(ctx, this);\n this._draw();\n unclipArea(ctx);\n }\n }\n _draw() {\n const {options: opts, columnSizes, lineWidths, ctx} = this;\n const {align, labels: labelOpts} = opts;\n const defaultColor = defaults.color;\n const rtlHelper = getRtlAdapter(opts.rtl, this.left, this.width);\n const labelFont = toFont(labelOpts.font);\n const {color: fontColor, padding} = labelOpts;\n const fontSize = labelFont.size;\n const halfFontSize = fontSize / 2;\n let cursor;\n this.drawTitle();\n ctx.textAlign = rtlHelper.textAlign('left');\n ctx.textBaseline = 'middle';\n ctx.lineWidth = 0.5;\n ctx.font = labelFont.string;\n const {boxWidth, boxHeight, itemHeight} = getBoxSize(labelOpts, fontSize);\n const drawLegendBox = function(x, y, legendItem) {\n if (isNaN(boxWidth) || boxWidth <= 0 || isNaN(boxHeight) || boxHeight < 0) {\n return;\n }\n ctx.save();\n const lineWidth = valueOrDefault(legendItem.lineWidth, 1);\n ctx.fillStyle = valueOrDefault(legendItem.fillStyle, defaultColor);\n ctx.lineCap = valueOrDefault(legendItem.lineCap, 'butt');\n ctx.lineDashOffset = valueOrDefault(legendItem.lineDashOffset, 0);\n ctx.lineJoin = valueOrDefault(legendItem.lineJoin, 'miter');\n ctx.lineWidth = lineWidth;\n ctx.strokeStyle = valueOrDefault(legendItem.strokeStyle, defaultColor);\n ctx.setLineDash(valueOrDefault(legendItem.lineDash, []));\n if (labelOpts.usePointStyle) {\n const drawOptions = {\n radius: boxWidth * Math.SQRT2 / 2,\n pointStyle: legendItem.pointStyle,\n rotation: legendItem.rotation,\n borderWidth: lineWidth\n };\n const centerX = rtlHelper.xPlus(x, boxWidth / 2);\n const centerY = y + halfFontSize;\n drawPoint(ctx, drawOptions, centerX, centerY);\n } else {\n const yBoxTop = y + Math.max((fontSize - boxHeight) / 2, 0);\n const xBoxLeft = rtlHelper.leftForLtr(x, boxWidth);\n const borderRadius = toTRBLCorners(legendItem.borderRadius);\n ctx.beginPath();\n if (Object.values(borderRadius).some(v => v !== 0)) {\n addRoundedRectPath(ctx, {\n x: xBoxLeft,\n y: yBoxTop,\n w: boxWidth,\n h: boxHeight,\n radius: borderRadius,\n });\n } else {\n ctx.rect(xBoxLeft, yBoxTop, boxWidth, boxHeight);\n }\n ctx.fill();\n if (lineWidth !== 0) {\n ctx.stroke();\n }\n }\n ctx.restore();\n };\n const fillText = function(x, y, legendItem) {\n renderText(ctx, legendItem.text, x, y + (itemHeight / 2), labelFont, {\n strikethrough: legendItem.hidden,\n textAlign: rtlHelper.textAlign(legendItem.textAlign)\n });\n };\n const isHorizontal = this.isHorizontal();\n const titleHeight = this._computeTitleHeight();\n if (isHorizontal) {\n cursor = {\n x: _alignStartEnd(align, this.left + padding, this.right - lineWidths[0]),\n y: this.top + padding + titleHeight,\n line: 0\n };\n } else {\n cursor = {\n x: this.left + padding,\n y: _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - columnSizes[0].height),\n line: 0\n };\n }\n overrideTextDirection(this.ctx, opts.textDirection);\n const lineHeight = itemHeight + padding;\n this.legendItems.forEach((legendItem, i) => {\n ctx.strokeStyle = legendItem.fontColor || fontColor;\n ctx.fillStyle = legendItem.fontColor || fontColor;\n const textWidth = ctx.measureText(legendItem.text).width;\n const textAlign = rtlHelper.textAlign(legendItem.textAlign || (legendItem.textAlign = labelOpts.textAlign));\n const width = boxWidth + halfFontSize + textWidth;\n let x = cursor.x;\n let y = cursor.y;\n rtlHelper.setWidth(this.width);\n if (isHorizontal) {\n if (i > 0 && x + width + padding > this.right) {\n y = cursor.y += lineHeight;\n cursor.line++;\n x = cursor.x = _alignStartEnd(align, this.left + padding, this.right - lineWidths[cursor.line]);\n }\n } else if (i > 0 && y + lineHeight > this.bottom) {\n x = cursor.x = x + columnSizes[cursor.line].width + padding;\n cursor.line++;\n y = cursor.y = _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - columnSizes[cursor.line].height);\n }\n const realX = rtlHelper.x(x);\n drawLegendBox(realX, y, legendItem);\n x = _textX(textAlign, x + boxWidth + halfFontSize, isHorizontal ? x + width : this.right, opts.rtl);\n fillText(rtlHelper.x(x), y, legendItem);\n if (isHorizontal) {\n cursor.x += width + padding;\n } else {\n cursor.y += lineHeight;\n }\n });\n restoreTextDirection(this.ctx, opts.textDirection);\n }\n drawTitle() {\n const opts = this.options;\n const titleOpts = opts.title;\n const titleFont = toFont(titleOpts.font);\n const titlePadding = toPadding(titleOpts.padding);\n if (!titleOpts.display) {\n return;\n }\n const rtlHelper = getRtlAdapter(opts.rtl, this.left, this.width);\n const ctx = this.ctx;\n const position = titleOpts.position;\n const halfFontSize = titleFont.size / 2;\n const topPaddingPlusHalfFontSize = titlePadding.top + halfFontSize;\n let y;\n let left = this.left;\n let maxWidth = this.width;\n if (this.isHorizontal()) {\n maxWidth = Math.max(...this.lineWidths);\n y = this.top + topPaddingPlusHalfFontSize;\n left = _alignStartEnd(opts.align, left, this.right - maxWidth);\n } else {\n const maxHeight = this.columnSizes.reduce((acc, size) => Math.max(acc, size.height), 0);\n y = topPaddingPlusHalfFontSize + _alignStartEnd(opts.align, this.top, this.bottom - maxHeight - opts.labels.padding - this._computeTitleHeight());\n }\n const x = _alignStartEnd(position, left, left + maxWidth);\n ctx.textAlign = rtlHelper.textAlign(_toLeftRightCenter(position));\n ctx.textBaseline = 'middle';\n ctx.strokeStyle = titleOpts.color;\n ctx.fillStyle = titleOpts.color;\n ctx.font = titleFont.string;\n renderText(ctx, titleOpts.text, x, y, titleFont);\n }\n _computeTitleHeight() {\n const titleOpts = this.options.title;\n const titleFont = toFont(titleOpts.font);\n const titlePadding = toPadding(titleOpts.padding);\n return titleOpts.display ? titleFont.lineHeight + titlePadding.height : 0;\n }\n _getLegendItemAt(x, y) {\n let i, hitBox, lh;\n if (_isBetween(x, this.left, this.right)\n && _isBetween(y, this.top, this.bottom)) {\n lh = this.legendHitBoxes;\n for (i = 0; i < lh.length; ++i) {\n hitBox = lh[i];\n if (_isBetween(x, hitBox.left, hitBox.left + hitBox.width)\n && _isBetween(y, hitBox.top, hitBox.top + hitBox.height)) {\n return this.legendItems[i];\n }\n }\n }\n return null;\n }\n handleEvent(e) {\n const opts = this.options;\n if (!isListened(e.type, opts)) {\n return;\n }\n const hoveredItem = this._getLegendItemAt(e.x, e.y);\n if (e.type === 'mousemove' || e.type === 'mouseout') {\n const previous = this._hoveredItem;\n const sameItem = itemsEqual(previous, hoveredItem);\n if (previous && !sameItem) {\n callback(opts.onLeave, [e, previous, this], this);\n }\n this._hoveredItem = hoveredItem;\n if (hoveredItem && !sameItem) {\n callback(opts.onHover, [e, hoveredItem, this], this);\n }\n } else if (hoveredItem) {\n callback(opts.onClick, [e, hoveredItem, this], this);\n }\n }\n}\nfunction isListened(type, opts) {\n if ((type === 'mousemove' || type === 'mouseout') && (opts.onHover || opts.onLeave)) {\n return true;\n }\n if (opts.onClick && (type === 'click' || type === 'mouseup')) {\n return true;\n }\n return false;\n}\nvar plugin_legend = {\n id: 'legend',\n _element: Legend,\n start(chart, _args, options) {\n const legend = chart.legend = new Legend({ctx: chart.ctx, options, chart});\n layouts.configure(chart, legend, options);\n layouts.addBox(chart, legend);\n },\n stop(chart) {\n layouts.removeBox(chart, chart.legend);\n delete chart.legend;\n },\n beforeUpdate(chart, _args, options) {\n const legend = chart.legend;\n layouts.configure(chart, legend, options);\n legend.options = options;\n },\n afterUpdate(chart) {\n const legend = chart.legend;\n legend.buildLabels();\n legend.adjustHitBoxes();\n },\n afterEvent(chart, args) {\n if (!args.replay) {\n chart.legend.handleEvent(args.event);\n }\n },\n defaults: {\n display: true,\n position: 'top',\n align: 'center',\n fullSize: true,\n reverse: false,\n weight: 1000,\n onClick(e, legendItem, legend) {\n const index = legendItem.datasetIndex;\n const ci = legend.chart;\n if (ci.isDatasetVisible(index)) {\n ci.hide(index);\n legendItem.hidden = true;\n } else {\n ci.show(index);\n legendItem.hidden = false;\n }\n },\n onHover: null,\n onLeave: null,\n labels: {\n color: (ctx) => ctx.chart.options.color,\n boxWidth: 40,\n padding: 10,\n generateLabels(chart) {\n const datasets = chart.data.datasets;\n const {labels: {usePointStyle, pointStyle, textAlign, color}} = chart.legend.options;\n return chart._getSortedDatasetMetas().map((meta) => {\n const style = meta.controller.getStyle(usePointStyle ? 0 : undefined);\n const borderWidth = toPadding(style.borderWidth);\n return {\n text: datasets[meta.index].label,\n fillStyle: style.backgroundColor,\n fontColor: color,\n hidden: !meta.visible,\n lineCap: style.borderCapStyle,\n lineDash: style.borderDash,\n lineDashOffset: style.borderDashOffset,\n lineJoin: style.borderJoinStyle,\n lineWidth: (borderWidth.width + borderWidth.height) / 4,\n strokeStyle: style.borderColor,\n pointStyle: pointStyle || style.pointStyle,\n rotation: style.rotation,\n textAlign: textAlign || style.textAlign,\n borderRadius: 0,\n datasetIndex: meta.index\n };\n }, this);\n }\n },\n title: {\n color: (ctx) => ctx.chart.options.color,\n display: false,\n position: 'center',\n text: '',\n }\n },\n descriptors: {\n _scriptable: (name) => !name.startsWith('on'),\n labels: {\n _scriptable: (name) => !['generateLabels', 'filter', 'sort'].includes(name),\n }\n },\n};\n\nclass Title extends Element {\n constructor(config) {\n super();\n this.chart = config.chart;\n this.options = config.options;\n this.ctx = config.ctx;\n this._padding = undefined;\n this.top = undefined;\n this.bottom = undefined;\n this.left = undefined;\n this.right = undefined;\n this.width = undefined;\n this.height = undefined;\n this.position = undefined;\n this.weight = undefined;\n this.fullSize = undefined;\n }\n update(maxWidth, maxHeight) {\n const opts = this.options;\n this.left = 0;\n this.top = 0;\n if (!opts.display) {\n this.width = this.height = this.right = this.bottom = 0;\n return;\n }\n this.width = this.right = maxWidth;\n this.height = this.bottom = maxHeight;\n const lineCount = isArray(opts.text) ? opts.text.length : 1;\n this._padding = toPadding(opts.padding);\n const textSize = lineCount * toFont(opts.font).lineHeight + this._padding.height;\n if (this.isHorizontal()) {\n this.height = textSize;\n } else {\n this.width = textSize;\n }\n }\n isHorizontal() {\n const pos = this.options.position;\n return pos === 'top' || pos === 'bottom';\n }\n _drawArgs(offset) {\n const {top, left, bottom, right, options} = this;\n const align = options.align;\n let rotation = 0;\n let maxWidth, titleX, titleY;\n if (this.isHorizontal()) {\n titleX = _alignStartEnd(align, left, right);\n titleY = top + offset;\n maxWidth = right - left;\n } else {\n if (options.position === 'left') {\n titleX = left + offset;\n titleY = _alignStartEnd(align, bottom, top);\n rotation = PI * -0.5;\n } else {\n titleX = right - offset;\n titleY = _alignStartEnd(align, top, bottom);\n rotation = PI * 0.5;\n }\n maxWidth = bottom - top;\n }\n return {titleX, titleY, maxWidth, rotation};\n }\n draw() {\n const ctx = this.ctx;\n const opts = this.options;\n if (!opts.display) {\n return;\n }\n const fontOpts = toFont(opts.font);\n const lineHeight = fontOpts.lineHeight;\n const offset = lineHeight / 2 + this._padding.top;\n const {titleX, titleY, maxWidth, rotation} = this._drawArgs(offset);\n renderText(ctx, opts.text, 0, 0, fontOpts, {\n color: opts.color,\n maxWidth,\n rotation,\n textAlign: _toLeftRightCenter(opts.align),\n textBaseline: 'middle',\n translation: [titleX, titleY],\n });\n }\n}\nfunction createTitle(chart, titleOpts) {\n const title = new Title({\n ctx: chart.ctx,\n options: titleOpts,\n chart\n });\n layouts.configure(chart, title, titleOpts);\n layouts.addBox(chart, title);\n chart.titleBlock = title;\n}\nvar plugin_title = {\n id: 'title',\n _element: Title,\n start(chart, _args, options) {\n createTitle(chart, options);\n },\n stop(chart) {\n const titleBlock = chart.titleBlock;\n layouts.removeBox(chart, titleBlock);\n delete chart.titleBlock;\n },\n beforeUpdate(chart, _args, options) {\n const title = chart.titleBlock;\n layouts.configure(chart, title, options);\n title.options = options;\n },\n defaults: {\n align: 'center',\n display: false,\n font: {\n weight: 'bold',\n },\n fullSize: true,\n padding: 10,\n position: 'top',\n text: '',\n weight: 2000\n },\n defaultRoutes: {\n color: 'color'\n },\n descriptors: {\n _scriptable: true,\n _indexable: false,\n },\n};\n\nconst map = new WeakMap();\nvar plugin_subtitle = {\n id: 'subtitle',\n start(chart, _args, options) {\n const title = new Title({\n ctx: chart.ctx,\n options,\n chart\n });\n layouts.configure(chart, title, options);\n layouts.addBox(chart, title);\n map.set(chart, title);\n },\n stop(chart) {\n layouts.removeBox(chart, map.get(chart));\n map.delete(chart);\n },\n beforeUpdate(chart, _args, options) {\n const title = map.get(chart);\n layouts.configure(chart, title, options);\n title.options = options;\n },\n defaults: {\n align: 'center',\n display: false,\n font: {\n weight: 'normal',\n },\n fullSize: true,\n padding: 0,\n position: 'top',\n text: '',\n weight: 1500\n },\n defaultRoutes: {\n color: 'color'\n },\n descriptors: {\n _scriptable: true,\n _indexable: false,\n },\n};\n\nconst positioners = {\n average(items) {\n if (!items.length) {\n return false;\n }\n let i, len;\n let x = 0;\n let y = 0;\n let count = 0;\n for (i = 0, len = items.length; i < len; ++i) {\n const el = items[i].element;\n if (el && el.hasValue()) {\n const pos = el.tooltipPosition();\n x += pos.x;\n y += pos.y;\n ++count;\n }\n }\n return {\n x: x / count,\n y: y / count\n };\n },\n nearest(items, eventPosition) {\n if (!items.length) {\n return false;\n }\n let x = eventPosition.x;\n let y = eventPosition.y;\n let minDistance = Number.POSITIVE_INFINITY;\n let i, len, nearestElement;\n for (i = 0, len = items.length; i < len; ++i) {\n const el = items[i].element;\n if (el && el.hasValue()) {\n const center = el.getCenterPoint();\n const d = distanceBetweenPoints(eventPosition, center);\n if (d < minDistance) {\n minDistance = d;\n nearestElement = el;\n }\n }\n }\n if (nearestElement) {\n const tp = nearestElement.tooltipPosition();\n x = tp.x;\n y = tp.y;\n }\n return {\n x,\n y\n };\n }\n};\nfunction pushOrConcat(base, toPush) {\n if (toPush) {\n if (isArray(toPush)) {\n Array.prototype.push.apply(base, toPush);\n } else {\n base.push(toPush);\n }\n }\n return base;\n}\nfunction splitNewlines(str) {\n if ((typeof str === 'string' || str instanceof String) && str.indexOf('\\n') > -1) {\n return str.split('\\n');\n }\n return str;\n}\nfunction createTooltipItem(chart, item) {\n const {element, datasetIndex, index} = item;\n const controller = chart.getDatasetMeta(datasetIndex).controller;\n const {label, value} = controller.getLabelAndValue(index);\n return {\n chart,\n label,\n parsed: controller.getParsed(index),\n raw: chart.data.datasets[datasetIndex].data[index],\n formattedValue: value,\n dataset: controller.getDataset(),\n dataIndex: index,\n datasetIndex,\n element\n };\n}\nfunction getTooltipSize(tooltip, options) {\n const ctx = tooltip.chart.ctx;\n const {body, footer, title} = tooltip;\n const {boxWidth, boxHeight} = options;\n const bodyFont = toFont(options.bodyFont);\n const titleFont = toFont(options.titleFont);\n const footerFont = toFont(options.footerFont);\n const titleLineCount = title.length;\n const footerLineCount = footer.length;\n const bodyLineItemCount = body.length;\n const padding = toPadding(options.padding);\n let height = padding.height;\n let width = 0;\n let combinedBodyLength = body.reduce((count, bodyItem) => count + bodyItem.before.length + bodyItem.lines.length + bodyItem.after.length, 0);\n combinedBodyLength += tooltip.beforeBody.length + tooltip.afterBody.length;\n if (titleLineCount) {\n height += titleLineCount * titleFont.lineHeight\n\t\t\t+ (titleLineCount - 1) * options.titleSpacing\n\t\t\t+ options.titleMarginBottom;\n }\n if (combinedBodyLength) {\n const bodyLineHeight = options.displayColors ? Math.max(boxHeight, bodyFont.lineHeight) : bodyFont.lineHeight;\n height += bodyLineItemCount * bodyLineHeight\n\t\t\t+ (combinedBodyLength - bodyLineItemCount) * bodyFont.lineHeight\n\t\t\t+ (combinedBodyLength - 1) * options.bodySpacing;\n }\n if (footerLineCount) {\n height += options.footerMarginTop\n\t\t\t+ footerLineCount * footerFont.lineHeight\n\t\t\t+ (footerLineCount - 1) * options.footerSpacing;\n }\n let widthPadding = 0;\n const maxLineWidth = function(line) {\n width = Math.max(width, ctx.measureText(line).width + widthPadding);\n };\n ctx.save();\n ctx.font = titleFont.string;\n each(tooltip.title, maxLineWidth);\n ctx.font = bodyFont.string;\n each(tooltip.beforeBody.concat(tooltip.afterBody), maxLineWidth);\n widthPadding = options.displayColors ? (boxWidth + 2 + options.boxPadding) : 0;\n each(body, (bodyItem) => {\n each(bodyItem.before, maxLineWidth);\n each(bodyItem.lines, maxLineWidth);\n each(bodyItem.after, maxLineWidth);\n });\n widthPadding = 0;\n ctx.font = footerFont.string;\n each(tooltip.footer, maxLineWidth);\n ctx.restore();\n width += padding.width;\n return {width, height};\n}\nfunction determineYAlign(chart, size) {\n const {y, height} = size;\n if (y < height / 2) {\n return 'top';\n } else if (y > (chart.height - height / 2)) {\n return 'bottom';\n }\n return 'center';\n}\nfunction doesNotFitWithAlign(xAlign, chart, options, size) {\n const {x, width} = size;\n const caret = options.caretSize + options.caretPadding;\n if (xAlign === 'left' && x + width + caret > chart.width) {\n return true;\n }\n if (xAlign === 'right' && x - width - caret < 0) {\n return true;\n }\n}\nfunction determineXAlign(chart, options, size, yAlign) {\n const {x, width} = size;\n const {width: chartWidth, chartArea: {left, right}} = chart;\n let xAlign = 'center';\n if (yAlign === 'center') {\n xAlign = x <= (left + right) / 2 ? 'left' : 'right';\n } else if (x <= width / 2) {\n xAlign = 'left';\n } else if (x >= chartWidth - width / 2) {\n xAlign = 'right';\n }\n if (doesNotFitWithAlign(xAlign, chart, options, size)) {\n xAlign = 'center';\n }\n return xAlign;\n}\nfunction determineAlignment(chart, options, size) {\n const yAlign = size.yAlign || options.yAlign || determineYAlign(chart, size);\n return {\n xAlign: size.xAlign || options.xAlign || determineXAlign(chart, options, size, yAlign),\n yAlign\n };\n}\nfunction alignX(size, xAlign) {\n let {x, width} = size;\n if (xAlign === 'right') {\n x -= width;\n } else if (xAlign === 'center') {\n x -= (width / 2);\n }\n return x;\n}\nfunction alignY(size, yAlign, paddingAndSize) {\n let {y, height} = size;\n if (yAlign === 'top') {\n y += paddingAndSize;\n } else if (yAlign === 'bottom') {\n y -= height + paddingAndSize;\n } else {\n y -= (height / 2);\n }\n return y;\n}\nfunction getBackgroundPoint(options, size, alignment, chart) {\n const {caretSize, caretPadding, cornerRadius} = options;\n const {xAlign, yAlign} = alignment;\n const paddingAndSize = caretSize + caretPadding;\n const {topLeft, topRight, bottomLeft, bottomRight} = toTRBLCorners(cornerRadius);\n let x = alignX(size, xAlign);\n const y = alignY(size, yAlign, paddingAndSize);\n if (yAlign === 'center') {\n if (xAlign === 'left') {\n x += paddingAndSize;\n } else if (xAlign === 'right') {\n x -= paddingAndSize;\n }\n } else if (xAlign === 'left') {\n x -= Math.max(topLeft, bottomLeft) + caretSize;\n } else if (xAlign === 'right') {\n x += Math.max(topRight, bottomRight) + caretSize;\n }\n return {\n x: _limitValue(x, 0, chart.width - size.width),\n y: _limitValue(y, 0, chart.height - size.height)\n };\n}\nfunction getAlignedX(tooltip, align, options) {\n const padding = toPadding(options.padding);\n return align === 'center'\n ? tooltip.x + tooltip.width / 2\n : align === 'right'\n ? tooltip.x + tooltip.width - padding.right\n : tooltip.x + padding.left;\n}\nfunction getBeforeAfterBodyLines(callback) {\n return pushOrConcat([], splitNewlines(callback));\n}\nfunction createTooltipContext(parent, tooltip, tooltipItems) {\n return createContext(parent, {\n tooltip,\n tooltipItems,\n type: 'tooltip'\n });\n}\nfunction overrideCallbacks(callbacks, context) {\n const override = context && context.dataset && context.dataset.tooltip && context.dataset.tooltip.callbacks;\n return override ? callbacks.override(override) : callbacks;\n}\nclass Tooltip extends Element {\n constructor(config) {\n super();\n this.opacity = 0;\n this._active = [];\n this._eventPosition = undefined;\n this._size = undefined;\n this._cachedAnimations = undefined;\n this._tooltipItems = [];\n this.$animations = undefined;\n this.$context = undefined;\n this.chart = config.chart || config._chart;\n this._chart = this.chart;\n this.options = config.options;\n this.dataPoints = undefined;\n this.title = undefined;\n this.beforeBody = undefined;\n this.body = undefined;\n this.afterBody = undefined;\n this.footer = undefined;\n this.xAlign = undefined;\n this.yAlign = undefined;\n this.x = undefined;\n this.y = undefined;\n this.height = undefined;\n this.width = undefined;\n this.caretX = undefined;\n this.caretY = undefined;\n this.labelColors = undefined;\n this.labelPointStyles = undefined;\n this.labelTextColors = undefined;\n }\n initialize(options) {\n this.options = options;\n this._cachedAnimations = undefined;\n this.$context = undefined;\n }\n _resolveAnimations() {\n const cached = this._cachedAnimations;\n if (cached) {\n return cached;\n }\n const chart = this.chart;\n const options = this.options.setContext(this.getContext());\n const opts = options.enabled && chart.options.animation && options.animations;\n const animations = new Animations(this.chart, opts);\n if (opts._cacheable) {\n this._cachedAnimations = Object.freeze(animations);\n }\n return animations;\n }\n getContext() {\n return this.$context ||\n\t\t\t(this.$context = createTooltipContext(this.chart.getContext(), this, this._tooltipItems));\n }\n getTitle(context, options) {\n const {callbacks} = options;\n const beforeTitle = callbacks.beforeTitle.apply(this, [context]);\n const title = callbacks.title.apply(this, [context]);\n const afterTitle = callbacks.afterTitle.apply(this, [context]);\n let lines = [];\n lines = pushOrConcat(lines, splitNewlines(beforeTitle));\n lines = pushOrConcat(lines, splitNewlines(title));\n lines = pushOrConcat(lines, splitNewlines(afterTitle));\n return lines;\n }\n getBeforeBody(tooltipItems, options) {\n return getBeforeAfterBodyLines(options.callbacks.beforeBody.apply(this, [tooltipItems]));\n }\n getBody(tooltipItems, options) {\n const {callbacks} = options;\n const bodyItems = [];\n each(tooltipItems, (context) => {\n const bodyItem = {\n before: [],\n lines: [],\n after: []\n };\n const scoped = overrideCallbacks(callbacks, context);\n pushOrConcat(bodyItem.before, splitNewlines(scoped.beforeLabel.call(this, context)));\n pushOrConcat(bodyItem.lines, scoped.label.call(this, context));\n pushOrConcat(bodyItem.after, splitNewlines(scoped.afterLabel.call(this, context)));\n bodyItems.push(bodyItem);\n });\n return bodyItems;\n }\n getAfterBody(tooltipItems, options) {\n return getBeforeAfterBodyLines(options.callbacks.afterBody.apply(this, [tooltipItems]));\n }\n getFooter(tooltipItems, options) {\n const {callbacks} = options;\n const beforeFooter = callbacks.beforeFooter.apply(this, [tooltipItems]);\n const footer = callbacks.footer.apply(this, [tooltipItems]);\n const afterFooter = callbacks.afterFooter.apply(this, [tooltipItems]);\n let lines = [];\n lines = pushOrConcat(lines, splitNewlines(beforeFooter));\n lines = pushOrConcat(lines, splitNewlines(footer));\n lines = pushOrConcat(lines, splitNewlines(afterFooter));\n return lines;\n }\n _createItems(options) {\n const active = this._active;\n const data = this.chart.data;\n const labelColors = [];\n const labelPointStyles = [];\n const labelTextColors = [];\n let tooltipItems = [];\n let i, len;\n for (i = 0, len = active.length; i < len; ++i) {\n tooltipItems.push(createTooltipItem(this.chart, active[i]));\n }\n if (options.filter) {\n tooltipItems = tooltipItems.filter((element, index, array) => options.filter(element, index, array, data));\n }\n if (options.itemSort) {\n tooltipItems = tooltipItems.sort((a, b) => options.itemSort(a, b, data));\n }\n each(tooltipItems, (context) => {\n const scoped = overrideCallbacks(options.callbacks, context);\n labelColors.push(scoped.labelColor.call(this, context));\n labelPointStyles.push(scoped.labelPointStyle.call(this, context));\n labelTextColors.push(scoped.labelTextColor.call(this, context));\n });\n this.labelColors = labelColors;\n this.labelPointStyles = labelPointStyles;\n this.labelTextColors = labelTextColors;\n this.dataPoints = tooltipItems;\n return tooltipItems;\n }\n update(changed, replay) {\n const options = this.options.setContext(this.getContext());\n const active = this._active;\n let properties;\n let tooltipItems = [];\n if (!active.length) {\n if (this.opacity !== 0) {\n properties = {\n opacity: 0\n };\n }\n } else {\n const position = positioners[options.position].call(this, active, this._eventPosition);\n tooltipItems = this._createItems(options);\n this.title = this.getTitle(tooltipItems, options);\n this.beforeBody = this.getBeforeBody(tooltipItems, options);\n this.body = this.getBody(tooltipItems, options);\n this.afterBody = this.getAfterBody(tooltipItems, options);\n this.footer = this.getFooter(tooltipItems, options);\n const size = this._size = getTooltipSize(this, options);\n const positionAndSize = Object.assign({}, position, size);\n const alignment = determineAlignment(this.chart, options, positionAndSize);\n const backgroundPoint = getBackgroundPoint(options, positionAndSize, alignment, this.chart);\n this.xAlign = alignment.xAlign;\n this.yAlign = alignment.yAlign;\n properties = {\n opacity: 1,\n x: backgroundPoint.x,\n y: backgroundPoint.y,\n width: size.width,\n height: size.height,\n caretX: position.x,\n caretY: position.y\n };\n }\n this._tooltipItems = tooltipItems;\n this.$context = undefined;\n if (properties) {\n this._resolveAnimations().update(this, properties);\n }\n if (changed && options.external) {\n options.external.call(this, {chart: this.chart, tooltip: this, replay});\n }\n }\n drawCaret(tooltipPoint, ctx, size, options) {\n const caretPosition = this.getCaretPosition(tooltipPoint, size, options);\n ctx.lineTo(caretPosition.x1, caretPosition.y1);\n ctx.lineTo(caretPosition.x2, caretPosition.y2);\n ctx.lineTo(caretPosition.x3, caretPosition.y3);\n }\n getCaretPosition(tooltipPoint, size, options) {\n const {xAlign, yAlign} = this;\n const {caretSize, cornerRadius} = options;\n const {topLeft, topRight, bottomLeft, bottomRight} = toTRBLCorners(cornerRadius);\n const {x: ptX, y: ptY} = tooltipPoint;\n const {width, height} = size;\n let x1, x2, x3, y1, y2, y3;\n if (yAlign === 'center') {\n y2 = ptY + (height / 2);\n if (xAlign === 'left') {\n x1 = ptX;\n x2 = x1 - caretSize;\n y1 = y2 + caretSize;\n y3 = y2 - caretSize;\n } else {\n x1 = ptX + width;\n x2 = x1 + caretSize;\n y1 = y2 - caretSize;\n y3 = y2 + caretSize;\n }\n x3 = x1;\n } else {\n if (xAlign === 'left') {\n x2 = ptX + Math.max(topLeft, bottomLeft) + (caretSize);\n } else if (xAlign === 'right') {\n x2 = ptX + width - Math.max(topRight, bottomRight) - caretSize;\n } else {\n x2 = this.caretX;\n }\n if (yAlign === 'top') {\n y1 = ptY;\n y2 = y1 - caretSize;\n x1 = x2 - caretSize;\n x3 = x2 + caretSize;\n } else {\n y1 = ptY + height;\n y2 = y1 + caretSize;\n x1 = x2 + caretSize;\n x3 = x2 - caretSize;\n }\n y3 = y1;\n }\n return {x1, x2, x3, y1, y2, y3};\n }\n drawTitle(pt, ctx, options) {\n const title = this.title;\n const length = title.length;\n let titleFont, titleSpacing, i;\n if (length) {\n const rtlHelper = getRtlAdapter(options.rtl, this.x, this.width);\n pt.x = getAlignedX(this, options.titleAlign, options);\n ctx.textAlign = rtlHelper.textAlign(options.titleAlign);\n ctx.textBaseline = 'middle';\n titleFont = toFont(options.titleFont);\n titleSpacing = options.titleSpacing;\n ctx.fillStyle = options.titleColor;\n ctx.font = titleFont.string;\n for (i = 0; i < length; ++i) {\n ctx.fillText(title[i], rtlHelper.x(pt.x), pt.y + titleFont.lineHeight / 2);\n pt.y += titleFont.lineHeight + titleSpacing;\n if (i + 1 === length) {\n pt.y += options.titleMarginBottom - titleSpacing;\n }\n }\n }\n }\n _drawColorBox(ctx, pt, i, rtlHelper, options) {\n const labelColors = this.labelColors[i];\n const labelPointStyle = this.labelPointStyles[i];\n const {boxHeight, boxWidth, boxPadding} = options;\n const bodyFont = toFont(options.bodyFont);\n const colorX = getAlignedX(this, 'left', options);\n const rtlColorX = rtlHelper.x(colorX);\n const yOffSet = boxHeight < bodyFont.lineHeight ? (bodyFont.lineHeight - boxHeight) / 2 : 0;\n const colorY = pt.y + yOffSet;\n if (options.usePointStyle) {\n const drawOptions = {\n radius: Math.min(boxWidth, boxHeight) / 2,\n pointStyle: labelPointStyle.pointStyle,\n rotation: labelPointStyle.rotation,\n borderWidth: 1\n };\n const centerX = rtlHelper.leftForLtr(rtlColorX, boxWidth) + boxWidth / 2;\n const centerY = colorY + boxHeight / 2;\n ctx.strokeStyle = options.multiKeyBackground;\n ctx.fillStyle = options.multiKeyBackground;\n drawPoint(ctx, drawOptions, centerX, centerY);\n ctx.strokeStyle = labelColors.borderColor;\n ctx.fillStyle = labelColors.backgroundColor;\n drawPoint(ctx, drawOptions, centerX, centerY);\n } else {\n ctx.lineWidth = labelColors.borderWidth || 1;\n ctx.strokeStyle = labelColors.borderColor;\n ctx.setLineDash(labelColors.borderDash || []);\n ctx.lineDashOffset = labelColors.borderDashOffset || 0;\n const outerX = rtlHelper.leftForLtr(rtlColorX, boxWidth - boxPadding);\n const innerX = rtlHelper.leftForLtr(rtlHelper.xPlus(rtlColorX, 1), boxWidth - boxPadding - 2);\n const borderRadius = toTRBLCorners(labelColors.borderRadius);\n if (Object.values(borderRadius).some(v => v !== 0)) {\n ctx.beginPath();\n ctx.fillStyle = options.multiKeyBackground;\n addRoundedRectPath(ctx, {\n x: outerX,\n y: colorY,\n w: boxWidth,\n h: boxHeight,\n radius: borderRadius,\n });\n ctx.fill();\n ctx.stroke();\n ctx.fillStyle = labelColors.backgroundColor;\n ctx.beginPath();\n addRoundedRectPath(ctx, {\n x: innerX,\n y: colorY + 1,\n w: boxWidth - 2,\n h: boxHeight - 2,\n radius: borderRadius,\n });\n ctx.fill();\n } else {\n ctx.fillStyle = options.multiKeyBackground;\n ctx.fillRect(outerX, colorY, boxWidth, boxHeight);\n ctx.strokeRect(outerX, colorY, boxWidth, boxHeight);\n ctx.fillStyle = labelColors.backgroundColor;\n ctx.fillRect(innerX, colorY + 1, boxWidth - 2, boxHeight - 2);\n }\n }\n ctx.fillStyle = this.labelTextColors[i];\n }\n drawBody(pt, ctx, options) {\n const {body} = this;\n const {bodySpacing, bodyAlign, displayColors, boxHeight, boxWidth, boxPadding} = options;\n const bodyFont = toFont(options.bodyFont);\n let bodyLineHeight = bodyFont.lineHeight;\n let xLinePadding = 0;\n const rtlHelper = getRtlAdapter(options.rtl, this.x, this.width);\n const fillLineOfText = function(line) {\n ctx.fillText(line, rtlHelper.x(pt.x + xLinePadding), pt.y + bodyLineHeight / 2);\n pt.y += bodyLineHeight + bodySpacing;\n };\n const bodyAlignForCalculation = rtlHelper.textAlign(bodyAlign);\n let bodyItem, textColor, lines, i, j, ilen, jlen;\n ctx.textAlign = bodyAlign;\n ctx.textBaseline = 'middle';\n ctx.font = bodyFont.string;\n pt.x = getAlignedX(this, bodyAlignForCalculation, options);\n ctx.fillStyle = options.bodyColor;\n each(this.beforeBody, fillLineOfText);\n xLinePadding = displayColors && bodyAlignForCalculation !== 'right'\n ? bodyAlign === 'center' ? (boxWidth / 2 + boxPadding) : (boxWidth + 2 + boxPadding)\n : 0;\n for (i = 0, ilen = body.length; i < ilen; ++i) {\n bodyItem = body[i];\n textColor = this.labelTextColors[i];\n ctx.fillStyle = textColor;\n each(bodyItem.before, fillLineOfText);\n lines = bodyItem.lines;\n if (displayColors && lines.length) {\n this._drawColorBox(ctx, pt, i, rtlHelper, options);\n bodyLineHeight = Math.max(bodyFont.lineHeight, boxHeight);\n }\n for (j = 0, jlen = lines.length; j < jlen; ++j) {\n fillLineOfText(lines[j]);\n bodyLineHeight = bodyFont.lineHeight;\n }\n each(bodyItem.after, fillLineOfText);\n }\n xLinePadding = 0;\n bodyLineHeight = bodyFont.lineHeight;\n each(this.afterBody, fillLineOfText);\n pt.y -= bodySpacing;\n }\n drawFooter(pt, ctx, options) {\n const footer = this.footer;\n const length = footer.length;\n let footerFont, i;\n if (length) {\n const rtlHelper = getRtlAdapter(options.rtl, this.x, this.width);\n pt.x = getAlignedX(this, options.footerAlign, options);\n pt.y += options.footerMarginTop;\n ctx.textAlign = rtlHelper.textAlign(options.footerAlign);\n ctx.textBaseline = 'middle';\n footerFont = toFont(options.footerFont);\n ctx.fillStyle = options.footerColor;\n ctx.font = footerFont.string;\n for (i = 0; i < length; ++i) {\n ctx.fillText(footer[i], rtlHelper.x(pt.x), pt.y + footerFont.lineHeight / 2);\n pt.y += footerFont.lineHeight + options.footerSpacing;\n }\n }\n }\n drawBackground(pt, ctx, tooltipSize, options) {\n const {xAlign, yAlign} = this;\n const {x, y} = pt;\n const {width, height} = tooltipSize;\n const {topLeft, topRight, bottomLeft, bottomRight} = toTRBLCorners(options.cornerRadius);\n ctx.fillStyle = options.backgroundColor;\n ctx.strokeStyle = options.borderColor;\n ctx.lineWidth = options.borderWidth;\n ctx.beginPath();\n ctx.moveTo(x + topLeft, y);\n if (yAlign === 'top') {\n this.drawCaret(pt, ctx, tooltipSize, options);\n }\n ctx.lineTo(x + width - topRight, y);\n ctx.quadraticCurveTo(x + width, y, x + width, y + topRight);\n if (yAlign === 'center' && xAlign === 'right') {\n this.drawCaret(pt, ctx, tooltipSize, options);\n }\n ctx.lineTo(x + width, y + height - bottomRight);\n ctx.quadraticCurveTo(x + width, y + height, x + width - bottomRight, y + height);\n if (yAlign === 'bottom') {\n this.drawCaret(pt, ctx, tooltipSize, options);\n }\n ctx.lineTo(x + bottomLeft, y + height);\n ctx.quadraticCurveTo(x, y + height, x, y + height - bottomLeft);\n if (yAlign === 'center' && xAlign === 'left') {\n this.drawCaret(pt, ctx, tooltipSize, options);\n }\n ctx.lineTo(x, y + topLeft);\n ctx.quadraticCurveTo(x, y, x + topLeft, y);\n ctx.closePath();\n ctx.fill();\n if (options.borderWidth > 0) {\n ctx.stroke();\n }\n }\n _updateAnimationTarget(options) {\n const chart = this.chart;\n const anims = this.$animations;\n const animX = anims && anims.x;\n const animY = anims && anims.y;\n if (animX || animY) {\n const position = positioners[options.position].call(this, this._active, this._eventPosition);\n if (!position) {\n return;\n }\n const size = this._size = getTooltipSize(this, options);\n const positionAndSize = Object.assign({}, position, this._size);\n const alignment = determineAlignment(chart, options, positionAndSize);\n const point = getBackgroundPoint(options, positionAndSize, alignment, chart);\n if (animX._to !== point.x || animY._to !== point.y) {\n this.xAlign = alignment.xAlign;\n this.yAlign = alignment.yAlign;\n this.width = size.width;\n this.height = size.height;\n this.caretX = position.x;\n this.caretY = position.y;\n this._resolveAnimations().update(this, point);\n }\n }\n }\n _willRender() {\n return !!this.opacity;\n }\n draw(ctx) {\n const options = this.options.setContext(this.getContext());\n let opacity = this.opacity;\n if (!opacity) {\n return;\n }\n this._updateAnimationTarget(options);\n const tooltipSize = {\n width: this.width,\n height: this.height\n };\n const pt = {\n x: this.x,\n y: this.y\n };\n opacity = Math.abs(opacity) < 1e-3 ? 0 : opacity;\n const padding = toPadding(options.padding);\n const hasTooltipContent = this.title.length || this.beforeBody.length || this.body.length || this.afterBody.length || this.footer.length;\n if (options.enabled && hasTooltipContent) {\n ctx.save();\n ctx.globalAlpha = opacity;\n this.drawBackground(pt, ctx, tooltipSize, options);\n overrideTextDirection(ctx, options.textDirection);\n pt.y += padding.top;\n this.drawTitle(pt, ctx, options);\n this.drawBody(pt, ctx, options);\n this.drawFooter(pt, ctx, options);\n restoreTextDirection(ctx, options.textDirection);\n ctx.restore();\n }\n }\n getActiveElements() {\n return this._active || [];\n }\n setActiveElements(activeElements, eventPosition) {\n const lastActive = this._active;\n const active = activeElements.map(({datasetIndex, index}) => {\n const meta = this.chart.getDatasetMeta(datasetIndex);\n if (!meta) {\n throw new Error('Cannot find a dataset at index ' + datasetIndex);\n }\n return {\n datasetIndex,\n element: meta.data[index],\n index,\n };\n });\n const changed = !_elementsEqual(lastActive, active);\n const positionChanged = this._positionChanged(active, eventPosition);\n if (changed || positionChanged) {\n this._active = active;\n this._eventPosition = eventPosition;\n this._ignoreReplayEvents = true;\n this.update(true);\n }\n }\n handleEvent(e, replay, inChartArea = true) {\n if (replay && this._ignoreReplayEvents) {\n return false;\n }\n this._ignoreReplayEvents = false;\n const options = this.options;\n const lastActive = this._active || [];\n const active = this._getActiveElements(e, lastActive, replay, inChartArea);\n const positionChanged = this._positionChanged(active, e);\n const changed = replay || !_elementsEqual(active, lastActive) || positionChanged;\n if (changed) {\n this._active = active;\n if (options.enabled || options.external) {\n this._eventPosition = {\n x: e.x,\n y: e.y\n };\n this.update(true, replay);\n }\n }\n return changed;\n }\n _getActiveElements(e, lastActive, replay, inChartArea) {\n const options = this.options;\n if (e.type === 'mouseout') {\n return [];\n }\n if (!inChartArea) {\n return lastActive;\n }\n const active = this.chart.getElementsAtEventForMode(e, options.mode, options, replay);\n if (options.reverse) {\n active.reverse();\n }\n return active;\n }\n _positionChanged(active, e) {\n const {caretX, caretY, options} = this;\n const position = positioners[options.position].call(this, active, e);\n return position !== false && (caretX !== position.x || caretY !== position.y);\n }\n}\nTooltip.positioners = positioners;\nvar plugin_tooltip = {\n id: 'tooltip',\n _element: Tooltip,\n positioners,\n afterInit(chart, _args, options) {\n if (options) {\n chart.tooltip = new Tooltip({chart, options});\n }\n },\n beforeUpdate(chart, _args, options) {\n if (chart.tooltip) {\n chart.tooltip.initialize(options);\n }\n },\n reset(chart, _args, options) {\n if (chart.tooltip) {\n chart.tooltip.initialize(options);\n }\n },\n afterDraw(chart) {\n const tooltip = chart.tooltip;\n if (tooltip && tooltip._willRender()) {\n const args = {\n tooltip\n };\n if (chart.notifyPlugins('beforeTooltipDraw', args) === false) {\n return;\n }\n tooltip.draw(chart.ctx);\n chart.notifyPlugins('afterTooltipDraw', args);\n }\n },\n afterEvent(chart, args) {\n if (chart.tooltip) {\n const useFinalPosition = args.replay;\n if (chart.tooltip.handleEvent(args.event, useFinalPosition, args.inChartArea)) {\n args.changed = true;\n }\n }\n },\n defaults: {\n enabled: true,\n external: null,\n position: 'average',\n backgroundColor: 'rgba(0,0,0,0.8)',\n titleColor: '#fff',\n titleFont: {\n weight: 'bold',\n },\n titleSpacing: 2,\n titleMarginBottom: 6,\n titleAlign: 'left',\n bodyColor: '#fff',\n bodySpacing: 2,\n bodyFont: {\n },\n bodyAlign: 'left',\n footerColor: '#fff',\n footerSpacing: 2,\n footerMarginTop: 6,\n footerFont: {\n weight: 'bold',\n },\n footerAlign: 'left',\n padding: 6,\n caretPadding: 2,\n caretSize: 5,\n cornerRadius: 6,\n boxHeight: (ctx, opts) => opts.bodyFont.size,\n boxWidth: (ctx, opts) => opts.bodyFont.size,\n multiKeyBackground: '#fff',\n displayColors: true,\n boxPadding: 0,\n borderColor: 'rgba(0,0,0,0)',\n borderWidth: 0,\n animation: {\n duration: 400,\n easing: 'easeOutQuart',\n },\n animations: {\n numbers: {\n type: 'number',\n properties: ['x', 'y', 'width', 'height', 'caretX', 'caretY'],\n },\n opacity: {\n easing: 'linear',\n duration: 200\n }\n },\n callbacks: {\n beforeTitle: noop,\n title(tooltipItems) {\n if (tooltipItems.length > 0) {\n const item = tooltipItems[0];\n const labels = item.chart.data.labels;\n const labelCount = labels ? labels.length : 0;\n if (this && this.options && this.options.mode === 'dataset') {\n return item.dataset.label || '';\n } else if (item.label) {\n return item.label;\n } else if (labelCount > 0 && item.dataIndex < labelCount) {\n return labels[item.dataIndex];\n }\n }\n return '';\n },\n afterTitle: noop,\n beforeBody: noop,\n beforeLabel: noop,\n label(tooltipItem) {\n if (this && this.options && this.options.mode === 'dataset') {\n return tooltipItem.label + ': ' + tooltipItem.formattedValue || tooltipItem.formattedValue;\n }\n let label = tooltipItem.dataset.label || '';\n if (label) {\n label += ': ';\n }\n const value = tooltipItem.formattedValue;\n if (!isNullOrUndef(value)) {\n label += value;\n }\n return label;\n },\n labelColor(tooltipItem) {\n const meta = tooltipItem.chart.getDatasetMeta(tooltipItem.datasetIndex);\n const options = meta.controller.getStyle(tooltipItem.dataIndex);\n return {\n borderColor: options.borderColor,\n backgroundColor: options.backgroundColor,\n borderWidth: options.borderWidth,\n borderDash: options.borderDash,\n borderDashOffset: options.borderDashOffset,\n borderRadius: 0,\n };\n },\n labelTextColor() {\n return this.options.bodyColor;\n },\n labelPointStyle(tooltipItem) {\n const meta = tooltipItem.chart.getDatasetMeta(tooltipItem.datasetIndex);\n const options = meta.controller.getStyle(tooltipItem.dataIndex);\n return {\n pointStyle: options.pointStyle,\n rotation: options.rotation,\n };\n },\n afterLabel: noop,\n afterBody: noop,\n beforeFooter: noop,\n footer: noop,\n afterFooter: noop\n }\n },\n defaultRoutes: {\n bodyFont: 'font',\n footerFont: 'font',\n titleFont: 'font'\n },\n descriptors: {\n _scriptable: (name) => name !== 'filter' && name !== 'itemSort' && name !== 'external',\n _indexable: false,\n callbacks: {\n _scriptable: false,\n _indexable: false,\n },\n animation: {\n _fallback: false\n },\n animations: {\n _fallback: 'animation'\n }\n },\n additionalOptionScopes: ['interaction']\n};\n\nvar plugins = /*#__PURE__*/Object.freeze({\n__proto__: null,\nDecimation: plugin_decimation,\nFiller: index,\nLegend: plugin_legend,\nSubTitle: plugin_subtitle,\nTitle: plugin_title,\nTooltip: plugin_tooltip\n});\n\nconst addIfString = (labels, raw, index, addedLabels) => {\n if (typeof raw === 'string') {\n index = labels.push(raw) - 1;\n addedLabels.unshift({index, label: raw});\n } else if (isNaN(raw)) {\n index = null;\n }\n return index;\n};\nfunction findOrAddLabel(labels, raw, index, addedLabels) {\n const first = labels.indexOf(raw);\n if (first === -1) {\n return addIfString(labels, raw, index, addedLabels);\n }\n const last = labels.lastIndexOf(raw);\n return first !== last ? index : first;\n}\nconst validIndex = (index, max) => index === null ? null : _limitValue(Math.round(index), 0, max);\nclass CategoryScale extends Scale {\n constructor(cfg) {\n super(cfg);\n this._startValue = undefined;\n this._valueRange = 0;\n this._addedLabels = [];\n }\n init(scaleOptions) {\n const added = this._addedLabels;\n if (added.length) {\n const labels = this.getLabels();\n for (const {index, label} of added) {\n if (labels[index] === label) {\n labels.splice(index, 1);\n }\n }\n this._addedLabels = [];\n }\n super.init(scaleOptions);\n }\n parse(raw, index) {\n if (isNullOrUndef(raw)) {\n return null;\n }\n const labels = this.getLabels();\n index = isFinite(index) && labels[index] === raw ? index\n : findOrAddLabel(labels, raw, valueOrDefault(index, raw), this._addedLabels);\n return validIndex(index, labels.length - 1);\n }\n determineDataLimits() {\n const {minDefined, maxDefined} = this.getUserBounds();\n let {min, max} = this.getMinMax(true);\n if (this.options.bounds === 'ticks') {\n if (!minDefined) {\n min = 0;\n }\n if (!maxDefined) {\n max = this.getLabels().length - 1;\n }\n }\n this.min = min;\n this.max = max;\n }\n buildTicks() {\n const min = this.min;\n const max = this.max;\n const offset = this.options.offset;\n const ticks = [];\n let labels = this.getLabels();\n labels = (min === 0 && max === labels.length - 1) ? labels : labels.slice(min, max + 1);\n this._valueRange = Math.max(labels.length - (offset ? 0 : 1), 1);\n this._startValue = this.min - (offset ? 0.5 : 0);\n for (let value = min; value <= max; value++) {\n ticks.push({value});\n }\n return ticks;\n }\n getLabelForValue(value) {\n const labels = this.getLabels();\n if (value >= 0 && value < labels.length) {\n return labels[value];\n }\n return value;\n }\n configure() {\n super.configure();\n if (!this.isHorizontal()) {\n this._reversePixels = !this._reversePixels;\n }\n }\n getPixelForValue(value) {\n if (typeof value !== 'number') {\n value = this.parse(value);\n }\n return value === null ? NaN : this.getPixelForDecimal((value - this._startValue) / this._valueRange);\n }\n getPixelForTick(index) {\n const ticks = this.ticks;\n if (index < 0 || index > ticks.length - 1) {\n return null;\n }\n return this.getPixelForValue(ticks[index].value);\n }\n getValueForPixel(pixel) {\n return Math.round(this._startValue + this.getDecimalForPixel(pixel) * this._valueRange);\n }\n getBasePixel() {\n return this.bottom;\n }\n}\nCategoryScale.id = 'category';\nCategoryScale.defaults = {\n ticks: {\n callback: CategoryScale.prototype.getLabelForValue\n }\n};\n\nfunction generateTicks$1(generationOptions, dataRange) {\n const ticks = [];\n const MIN_SPACING = 1e-14;\n const {bounds, step, min, max, precision, count, maxTicks, maxDigits, includeBounds} = generationOptions;\n const unit = step || 1;\n const maxSpaces = maxTicks - 1;\n const {min: rmin, max: rmax} = dataRange;\n const minDefined = !isNullOrUndef(min);\n const maxDefined = !isNullOrUndef(max);\n const countDefined = !isNullOrUndef(count);\n const minSpacing = (rmax - rmin) / (maxDigits + 1);\n let spacing = niceNum((rmax - rmin) / maxSpaces / unit) * unit;\n let factor, niceMin, niceMax, numSpaces;\n if (spacing < MIN_SPACING && !minDefined && !maxDefined) {\n return [{value: rmin}, {value: rmax}];\n }\n numSpaces = Math.ceil(rmax / spacing) - Math.floor(rmin / spacing);\n if (numSpaces > maxSpaces) {\n spacing = niceNum(numSpaces * spacing / maxSpaces / unit) * unit;\n }\n if (!isNullOrUndef(precision)) {\n factor = Math.pow(10, precision);\n spacing = Math.ceil(spacing * factor) / factor;\n }\n if (bounds === 'ticks') {\n niceMin = Math.floor(rmin / spacing) * spacing;\n niceMax = Math.ceil(rmax / spacing) * spacing;\n } else {\n niceMin = rmin;\n niceMax = rmax;\n }\n if (minDefined && maxDefined && step && almostWhole((max - min) / step, spacing / 1000)) {\n numSpaces = Math.round(Math.min((max - min) / spacing, maxTicks));\n spacing = (max - min) / numSpaces;\n niceMin = min;\n niceMax = max;\n } else if (countDefined) {\n niceMin = minDefined ? min : niceMin;\n niceMax = maxDefined ? max : niceMax;\n numSpaces = count - 1;\n spacing = (niceMax - niceMin) / numSpaces;\n } else {\n numSpaces = (niceMax - niceMin) / spacing;\n if (almostEquals(numSpaces, Math.round(numSpaces), spacing / 1000)) {\n numSpaces = Math.round(numSpaces);\n } else {\n numSpaces = Math.ceil(numSpaces);\n }\n }\n const decimalPlaces = Math.max(\n _decimalPlaces(spacing),\n _decimalPlaces(niceMin)\n );\n factor = Math.pow(10, isNullOrUndef(precision) ? decimalPlaces : precision);\n niceMin = Math.round(niceMin * factor) / factor;\n niceMax = Math.round(niceMax * factor) / factor;\n let j = 0;\n if (minDefined) {\n if (includeBounds && niceMin !== min) {\n ticks.push({value: min});\n if (niceMin < min) {\n j++;\n }\n if (almostEquals(Math.round((niceMin + j * spacing) * factor) / factor, min, relativeLabelSize(min, minSpacing, generationOptions))) {\n j++;\n }\n } else if (niceMin < min) {\n j++;\n }\n }\n for (; j < numSpaces; ++j) {\n ticks.push({value: Math.round((niceMin + j * spacing) * factor) / factor});\n }\n if (maxDefined && includeBounds && niceMax !== max) {\n if (ticks.length && almostEquals(ticks[ticks.length - 1].value, max, relativeLabelSize(max, minSpacing, generationOptions))) {\n ticks[ticks.length - 1].value = max;\n } else {\n ticks.push({value: max});\n }\n } else if (!maxDefined || niceMax === max) {\n ticks.push({value: niceMax});\n }\n return ticks;\n}\nfunction relativeLabelSize(value, minSpacing, {horizontal, minRotation}) {\n const rad = toRadians(minRotation);\n const ratio = (horizontal ? Math.sin(rad) : Math.cos(rad)) || 0.001;\n const length = 0.75 * minSpacing * ('' + value).length;\n return Math.min(minSpacing / ratio, length);\n}\nclass LinearScaleBase extends Scale {\n constructor(cfg) {\n super(cfg);\n this.start = undefined;\n this.end = undefined;\n this._startValue = undefined;\n this._endValue = undefined;\n this._valueRange = 0;\n }\n parse(raw, index) {\n if (isNullOrUndef(raw)) {\n return null;\n }\n if ((typeof raw === 'number' || raw instanceof Number) && !isFinite(+raw)) {\n return null;\n }\n return +raw;\n }\n handleTickRangeOptions() {\n const {beginAtZero} = this.options;\n const {minDefined, maxDefined} = this.getUserBounds();\n let {min, max} = this;\n const setMin = v => (min = minDefined ? min : v);\n const setMax = v => (max = maxDefined ? max : v);\n if (beginAtZero) {\n const minSign = sign(min);\n const maxSign = sign(max);\n if (minSign < 0 && maxSign < 0) {\n setMax(0);\n } else if (minSign > 0 && maxSign > 0) {\n setMin(0);\n }\n }\n if (min === max) {\n let offset = 1;\n if (max >= Number.MAX_SAFE_INTEGER || min <= Number.MIN_SAFE_INTEGER) {\n offset = Math.abs(max * 0.05);\n }\n setMax(max + offset);\n if (!beginAtZero) {\n setMin(min - offset);\n }\n }\n this.min = min;\n this.max = max;\n }\n getTickLimit() {\n const tickOpts = this.options.ticks;\n let {maxTicksLimit, stepSize} = tickOpts;\n let maxTicks;\n if (stepSize) {\n maxTicks = Math.ceil(this.max / stepSize) - Math.floor(this.min / stepSize) + 1;\n if (maxTicks > 1000) {\n console.warn(`scales.${this.id}.ticks.stepSize: ${stepSize} would result generating up to ${maxTicks} ticks. Limiting to 1000.`);\n maxTicks = 1000;\n }\n } else {\n maxTicks = this.computeTickLimit();\n maxTicksLimit = maxTicksLimit || 11;\n }\n if (maxTicksLimit) {\n maxTicks = Math.min(maxTicksLimit, maxTicks);\n }\n return maxTicks;\n }\n computeTickLimit() {\n return Number.POSITIVE_INFINITY;\n }\n buildTicks() {\n const opts = this.options;\n const tickOpts = opts.ticks;\n let maxTicks = this.getTickLimit();\n maxTicks = Math.max(2, maxTicks);\n const numericGeneratorOptions = {\n maxTicks,\n bounds: opts.bounds,\n min: opts.min,\n max: opts.max,\n precision: tickOpts.precision,\n step: tickOpts.stepSize,\n count: tickOpts.count,\n maxDigits: this._maxDigits(),\n horizontal: this.isHorizontal(),\n minRotation: tickOpts.minRotation || 0,\n includeBounds: tickOpts.includeBounds !== false\n };\n const dataRange = this._range || this;\n const ticks = generateTicks$1(numericGeneratorOptions, dataRange);\n if (opts.bounds === 'ticks') {\n _setMinAndMaxByKey(ticks, this, 'value');\n }\n if (opts.reverse) {\n ticks.reverse();\n this.start = this.max;\n this.end = this.min;\n } else {\n this.start = this.min;\n this.end = this.max;\n }\n return ticks;\n }\n configure() {\n const ticks = this.ticks;\n let start = this.min;\n let end = this.max;\n super.configure();\n if (this.options.offset && ticks.length) {\n const offset = (end - start) / Math.max(ticks.length - 1, 1) / 2;\n start -= offset;\n end += offset;\n }\n this._startValue = start;\n this._endValue = end;\n this._valueRange = end - start;\n }\n getLabelForValue(value) {\n return formatNumber(value, this.chart.options.locale, this.options.ticks.format);\n }\n}\n\nclass LinearScale extends LinearScaleBase {\n determineDataLimits() {\n const {min, max} = this.getMinMax(true);\n this.min = isNumberFinite(min) ? min : 0;\n this.max = isNumberFinite(max) ? max : 1;\n this.handleTickRangeOptions();\n }\n computeTickLimit() {\n const horizontal = this.isHorizontal();\n const length = horizontal ? this.width : this.height;\n const minRotation = toRadians(this.options.ticks.minRotation);\n const ratio = (horizontal ? Math.sin(minRotation) : Math.cos(minRotation)) || 0.001;\n const tickFont = this._resolveTickFontOptions(0);\n return Math.ceil(length / Math.min(40, tickFont.lineHeight / ratio));\n }\n getPixelForValue(value) {\n return value === null ? NaN : this.getPixelForDecimal((value - this._startValue) / this._valueRange);\n }\n getValueForPixel(pixel) {\n return this._startValue + this.getDecimalForPixel(pixel) * this._valueRange;\n }\n}\nLinearScale.id = 'linear';\nLinearScale.defaults = {\n ticks: {\n callback: Ticks.formatters.numeric\n }\n};\n\nfunction isMajor(tickVal) {\n const remain = tickVal / (Math.pow(10, Math.floor(log10(tickVal))));\n return remain === 1;\n}\nfunction generateTicks(generationOptions, dataRange) {\n const endExp = Math.floor(log10(dataRange.max));\n const endSignificand = Math.ceil(dataRange.max / Math.pow(10, endExp));\n const ticks = [];\n let tickVal = finiteOrDefault(generationOptions.min, Math.pow(10, Math.floor(log10(dataRange.min))));\n let exp = Math.floor(log10(tickVal));\n let significand = Math.floor(tickVal / Math.pow(10, exp));\n let precision = exp < 0 ? Math.pow(10, Math.abs(exp)) : 1;\n do {\n ticks.push({value: tickVal, major: isMajor(tickVal)});\n ++significand;\n if (significand === 10) {\n significand = 1;\n ++exp;\n precision = exp >= 0 ? 1 : precision;\n }\n tickVal = Math.round(significand * Math.pow(10, exp) * precision) / precision;\n } while (exp < endExp || (exp === endExp && significand < endSignificand));\n const lastTick = finiteOrDefault(generationOptions.max, tickVal);\n ticks.push({value: lastTick, major: isMajor(tickVal)});\n return ticks;\n}\nclass LogarithmicScale extends Scale {\n constructor(cfg) {\n super(cfg);\n this.start = undefined;\n this.end = undefined;\n this._startValue = undefined;\n this._valueRange = 0;\n }\n parse(raw, index) {\n const value = LinearScaleBase.prototype.parse.apply(this, [raw, index]);\n if (value === 0) {\n this._zero = true;\n return undefined;\n }\n return isNumberFinite(value) && value > 0 ? value : null;\n }\n determineDataLimits() {\n const {min, max} = this.getMinMax(true);\n this.min = isNumberFinite(min) ? Math.max(0, min) : null;\n this.max = isNumberFinite(max) ? Math.max(0, max) : null;\n if (this.options.beginAtZero) {\n this._zero = true;\n }\n this.handleTickRangeOptions();\n }\n handleTickRangeOptions() {\n const {minDefined, maxDefined} = this.getUserBounds();\n let min = this.min;\n let max = this.max;\n const setMin = v => (min = minDefined ? min : v);\n const setMax = v => (max = maxDefined ? max : v);\n const exp = (v, m) => Math.pow(10, Math.floor(log10(v)) + m);\n if (min === max) {\n if (min <= 0) {\n setMin(1);\n setMax(10);\n } else {\n setMin(exp(min, -1));\n setMax(exp(max, +1));\n }\n }\n if (min <= 0) {\n setMin(exp(max, -1));\n }\n if (max <= 0) {\n setMax(exp(min, +1));\n }\n if (this._zero && this.min !== this._suggestedMin && min === exp(this.min, 0)) {\n setMin(exp(min, -1));\n }\n this.min = min;\n this.max = max;\n }\n buildTicks() {\n const opts = this.options;\n const generationOptions = {\n min: this._userMin,\n max: this._userMax\n };\n const ticks = generateTicks(generationOptions, this);\n if (opts.bounds === 'ticks') {\n _setMinAndMaxByKey(ticks, this, 'value');\n }\n if (opts.reverse) {\n ticks.reverse();\n this.start = this.max;\n this.end = this.min;\n } else {\n this.start = this.min;\n this.end = this.max;\n }\n return ticks;\n }\n getLabelForValue(value) {\n return value === undefined\n ? '0'\n : formatNumber(value, this.chart.options.locale, this.options.ticks.format);\n }\n configure() {\n const start = this.min;\n super.configure();\n this._startValue = log10(start);\n this._valueRange = log10(this.max) - log10(start);\n }\n getPixelForValue(value) {\n if (value === undefined || value === 0) {\n value = this.min;\n }\n if (value === null || isNaN(value)) {\n return NaN;\n }\n return this.getPixelForDecimal(value === this.min\n ? 0\n : (log10(value) - this._startValue) / this._valueRange);\n }\n getValueForPixel(pixel) {\n const decimal = this.getDecimalForPixel(pixel);\n return Math.pow(10, this._startValue + decimal * this._valueRange);\n }\n}\nLogarithmicScale.id = 'logarithmic';\nLogarithmicScale.defaults = {\n ticks: {\n callback: Ticks.formatters.logarithmic,\n major: {\n enabled: true\n }\n }\n};\n\nfunction getTickBackdropHeight(opts) {\n const tickOpts = opts.ticks;\n if (tickOpts.display && opts.display) {\n const padding = toPadding(tickOpts.backdropPadding);\n return valueOrDefault(tickOpts.font && tickOpts.font.size, defaults.font.size) + padding.height;\n }\n return 0;\n}\nfunction measureLabelSize(ctx, font, label) {\n label = isArray(label) ? label : [label];\n return {\n w: _longestText(ctx, font.string, label),\n h: label.length * font.lineHeight\n };\n}\nfunction determineLimits(angle, pos, size, min, max) {\n if (angle === min || angle === max) {\n return {\n start: pos - (size / 2),\n end: pos + (size / 2)\n };\n } else if (angle < min || angle > max) {\n return {\n start: pos - size,\n end: pos\n };\n }\n return {\n start: pos,\n end: pos + size\n };\n}\nfunction fitWithPointLabels(scale) {\n const orig = {\n l: scale.left + scale._padding.left,\n r: scale.right - scale._padding.right,\n t: scale.top + scale._padding.top,\n b: scale.bottom - scale._padding.bottom\n };\n const limits = Object.assign({}, orig);\n const labelSizes = [];\n const padding = [];\n const valueCount = scale._pointLabels.length;\n const pointLabelOpts = scale.options.pointLabels;\n const additionalAngle = pointLabelOpts.centerPointLabels ? PI / valueCount : 0;\n for (let i = 0; i < valueCount; i++) {\n const opts = pointLabelOpts.setContext(scale.getPointLabelContext(i));\n padding[i] = opts.padding;\n const pointPosition = scale.getPointPosition(i, scale.drawingArea + padding[i], additionalAngle);\n const plFont = toFont(opts.font);\n const textSize = measureLabelSize(scale.ctx, plFont, scale._pointLabels[i]);\n labelSizes[i] = textSize;\n const angleRadians = _normalizeAngle(scale.getIndexAngle(i) + additionalAngle);\n const angle = Math.round(toDegrees(angleRadians));\n const hLimits = determineLimits(angle, pointPosition.x, textSize.w, 0, 180);\n const vLimits = determineLimits(angle, pointPosition.y, textSize.h, 90, 270);\n updateLimits(limits, orig, angleRadians, hLimits, vLimits);\n }\n scale.setCenterPoint(\n orig.l - limits.l,\n limits.r - orig.r,\n orig.t - limits.t,\n limits.b - orig.b\n );\n scale._pointLabelItems = buildPointLabelItems(scale, labelSizes, padding);\n}\nfunction updateLimits(limits, orig, angle, hLimits, vLimits) {\n const sin = Math.abs(Math.sin(angle));\n const cos = Math.abs(Math.cos(angle));\n let x = 0;\n let y = 0;\n if (hLimits.start < orig.l) {\n x = (orig.l - hLimits.start) / sin;\n limits.l = Math.min(limits.l, orig.l - x);\n } else if (hLimits.end > orig.r) {\n x = (hLimits.end - orig.r) / sin;\n limits.r = Math.max(limits.r, orig.r + x);\n }\n if (vLimits.start < orig.t) {\n y = (orig.t - vLimits.start) / cos;\n limits.t = Math.min(limits.t, orig.t - y);\n } else if (vLimits.end > orig.b) {\n y = (vLimits.end - orig.b) / cos;\n limits.b = Math.max(limits.b, orig.b + y);\n }\n}\nfunction buildPointLabelItems(scale, labelSizes, padding) {\n const items = [];\n const valueCount = scale._pointLabels.length;\n const opts = scale.options;\n const extra = getTickBackdropHeight(opts) / 2;\n const outerDistance = scale.drawingArea;\n const additionalAngle = opts.pointLabels.centerPointLabels ? PI / valueCount : 0;\n for (let i = 0; i < valueCount; i++) {\n const pointLabelPosition = scale.getPointPosition(i, outerDistance + extra + padding[i], additionalAngle);\n const angle = Math.round(toDegrees(_normalizeAngle(pointLabelPosition.angle + HALF_PI)));\n const size = labelSizes[i];\n const y = yForAngle(pointLabelPosition.y, size.h, angle);\n const textAlign = getTextAlignForAngle(angle);\n const left = leftForTextAlign(pointLabelPosition.x, size.w, textAlign);\n items.push({\n x: pointLabelPosition.x,\n y,\n textAlign,\n left,\n top: y,\n right: left + size.w,\n bottom: y + size.h\n });\n }\n return items;\n}\nfunction getTextAlignForAngle(angle) {\n if (angle === 0 || angle === 180) {\n return 'center';\n } else if (angle < 180) {\n return 'left';\n }\n return 'right';\n}\nfunction leftForTextAlign(x, w, align) {\n if (align === 'right') {\n x -= w;\n } else if (align === 'center') {\n x -= (w / 2);\n }\n return x;\n}\nfunction yForAngle(y, h, angle) {\n if (angle === 90 || angle === 270) {\n y -= (h / 2);\n } else if (angle > 270 || angle < 90) {\n y -= h;\n }\n return y;\n}\nfunction drawPointLabels(scale, labelCount) {\n const {ctx, options: {pointLabels}} = scale;\n for (let i = labelCount - 1; i >= 0; i--) {\n const optsAtIndex = pointLabels.setContext(scale.getPointLabelContext(i));\n const plFont = toFont(optsAtIndex.font);\n const {x, y, textAlign, left, top, right, bottom} = scale._pointLabelItems[i];\n const {backdropColor} = optsAtIndex;\n if (!isNullOrUndef(backdropColor)) {\n const borderRadius = toTRBLCorners(optsAtIndex.borderRadius);\n const padding = toPadding(optsAtIndex.backdropPadding);\n ctx.fillStyle = backdropColor;\n const backdropLeft = left - padding.left;\n const backdropTop = top - padding.top;\n const backdropWidth = right - left + padding.width;\n const backdropHeight = bottom - top + padding.height;\n if (Object.values(borderRadius).some(v => v !== 0)) {\n ctx.beginPath();\n addRoundedRectPath(ctx, {\n x: backdropLeft,\n y: backdropTop,\n w: backdropWidth,\n h: backdropHeight,\n radius: borderRadius,\n });\n ctx.fill();\n } else {\n ctx.fillRect(backdropLeft, backdropTop, backdropWidth, backdropHeight);\n }\n }\n renderText(\n ctx,\n scale._pointLabels[i],\n x,\n y + (plFont.lineHeight / 2),\n plFont,\n {\n color: optsAtIndex.color,\n textAlign: textAlign,\n textBaseline: 'middle'\n }\n );\n }\n}\nfunction pathRadiusLine(scale, radius, circular, labelCount) {\n const {ctx} = scale;\n if (circular) {\n ctx.arc(scale.xCenter, scale.yCenter, radius, 0, TAU);\n } else {\n let pointPosition = scale.getPointPosition(0, radius);\n ctx.moveTo(pointPosition.x, pointPosition.y);\n for (let i = 1; i < labelCount; i++) {\n pointPosition = scale.getPointPosition(i, radius);\n ctx.lineTo(pointPosition.x, pointPosition.y);\n }\n }\n}\nfunction drawRadiusLine(scale, gridLineOpts, radius, labelCount) {\n const ctx = scale.ctx;\n const circular = gridLineOpts.circular;\n const {color, lineWidth} = gridLineOpts;\n if ((!circular && !labelCount) || !color || !lineWidth || radius < 0) {\n return;\n }\n ctx.save();\n ctx.strokeStyle = color;\n ctx.lineWidth = lineWidth;\n ctx.setLineDash(gridLineOpts.borderDash);\n ctx.lineDashOffset = gridLineOpts.borderDashOffset;\n ctx.beginPath();\n pathRadiusLine(scale, radius, circular, labelCount);\n ctx.closePath();\n ctx.stroke();\n ctx.restore();\n}\nfunction createPointLabelContext(parent, index, label) {\n return createContext(parent, {\n label,\n index,\n type: 'pointLabel'\n });\n}\nclass RadialLinearScale extends LinearScaleBase {\n constructor(cfg) {\n super(cfg);\n this.xCenter = undefined;\n this.yCenter = undefined;\n this.drawingArea = undefined;\n this._pointLabels = [];\n this._pointLabelItems = [];\n }\n setDimensions() {\n const padding = this._padding = toPadding(getTickBackdropHeight(this.options) / 2);\n const w = this.width = this.maxWidth - padding.width;\n const h = this.height = this.maxHeight - padding.height;\n this.xCenter = Math.floor(this.left + w / 2 + padding.left);\n this.yCenter = Math.floor(this.top + h / 2 + padding.top);\n this.drawingArea = Math.floor(Math.min(w, h) / 2);\n }\n determineDataLimits() {\n const {min, max} = this.getMinMax(false);\n this.min = isNumberFinite(min) && !isNaN(min) ? min : 0;\n this.max = isNumberFinite(max) && !isNaN(max) ? max : 0;\n this.handleTickRangeOptions();\n }\n computeTickLimit() {\n return Math.ceil(this.drawingArea / getTickBackdropHeight(this.options));\n }\n generateTickLabels(ticks) {\n LinearScaleBase.prototype.generateTickLabels.call(this, ticks);\n this._pointLabels = this.getLabels()\n .map((value, index) => {\n const label = callback(this.options.pointLabels.callback, [value, index], this);\n return label || label === 0 ? label : '';\n })\n .filter((v, i) => this.chart.getDataVisibility(i));\n }\n fit() {\n const opts = this.options;\n if (opts.display && opts.pointLabels.display) {\n fitWithPointLabels(this);\n } else {\n this.setCenterPoint(0, 0, 0, 0);\n }\n }\n setCenterPoint(leftMovement, rightMovement, topMovement, bottomMovement) {\n this.xCenter += Math.floor((leftMovement - rightMovement) / 2);\n this.yCenter += Math.floor((topMovement - bottomMovement) / 2);\n this.drawingArea -= Math.min(this.drawingArea / 2, Math.max(leftMovement, rightMovement, topMovement, bottomMovement));\n }\n getIndexAngle(index) {\n const angleMultiplier = TAU / (this._pointLabels.length || 1);\n const startAngle = this.options.startAngle || 0;\n return _normalizeAngle(index * angleMultiplier + toRadians(startAngle));\n }\n getDistanceFromCenterForValue(value) {\n if (isNullOrUndef(value)) {\n return NaN;\n }\n const scalingFactor = this.drawingArea / (this.max - this.min);\n if (this.options.reverse) {\n return (this.max - value) * scalingFactor;\n }\n return (value - this.min) * scalingFactor;\n }\n getValueForDistanceFromCenter(distance) {\n if (isNullOrUndef(distance)) {\n return NaN;\n }\n const scaledDistance = distance / (this.drawingArea / (this.max - this.min));\n return this.options.reverse ? this.max - scaledDistance : this.min + scaledDistance;\n }\n getPointLabelContext(index) {\n const pointLabels = this._pointLabels || [];\n if (index >= 0 && index < pointLabels.length) {\n const pointLabel = pointLabels[index];\n return createPointLabelContext(this.getContext(), index, pointLabel);\n }\n }\n getPointPosition(index, distanceFromCenter, additionalAngle = 0) {\n const angle = this.getIndexAngle(index) - HALF_PI + additionalAngle;\n return {\n x: Math.cos(angle) * distanceFromCenter + this.xCenter,\n y: Math.sin(angle) * distanceFromCenter + this.yCenter,\n angle\n };\n }\n getPointPositionForValue(index, value) {\n return this.getPointPosition(index, this.getDistanceFromCenterForValue(value));\n }\n getBasePosition(index) {\n return this.getPointPositionForValue(index || 0, this.getBaseValue());\n }\n getPointLabelPosition(index) {\n const {left, top, right, bottom} = this._pointLabelItems[index];\n return {\n left,\n top,\n right,\n bottom,\n };\n }\n drawBackground() {\n const {backgroundColor, grid: {circular}} = this.options;\n if (backgroundColor) {\n const ctx = this.ctx;\n ctx.save();\n ctx.beginPath();\n pathRadiusLine(this, this.getDistanceFromCenterForValue(this._endValue), circular, this._pointLabels.length);\n ctx.closePath();\n ctx.fillStyle = backgroundColor;\n ctx.fill();\n ctx.restore();\n }\n }\n drawGrid() {\n const ctx = this.ctx;\n const opts = this.options;\n const {angleLines, grid} = opts;\n const labelCount = this._pointLabels.length;\n let i, offset, position;\n if (opts.pointLabels.display) {\n drawPointLabels(this, labelCount);\n }\n if (grid.display) {\n this.ticks.forEach((tick, index) => {\n if (index !== 0) {\n offset = this.getDistanceFromCenterForValue(tick.value);\n const optsAtIndex = grid.setContext(this.getContext(index - 1));\n drawRadiusLine(this, optsAtIndex, offset, labelCount);\n }\n });\n }\n if (angleLines.display) {\n ctx.save();\n for (i = labelCount - 1; i >= 0; i--) {\n const optsAtIndex = angleLines.setContext(this.getPointLabelContext(i));\n const {color, lineWidth} = optsAtIndex;\n if (!lineWidth || !color) {\n continue;\n }\n ctx.lineWidth = lineWidth;\n ctx.strokeStyle = color;\n ctx.setLineDash(optsAtIndex.borderDash);\n ctx.lineDashOffset = optsAtIndex.borderDashOffset;\n offset = this.getDistanceFromCenterForValue(opts.ticks.reverse ? this.min : this.max);\n position = this.getPointPosition(i, offset);\n ctx.beginPath();\n ctx.moveTo(this.xCenter, this.yCenter);\n ctx.lineTo(position.x, position.y);\n ctx.stroke();\n }\n ctx.restore();\n }\n }\n drawBorder() {}\n drawLabels() {\n const ctx = this.ctx;\n const opts = this.options;\n const tickOpts = opts.ticks;\n if (!tickOpts.display) {\n return;\n }\n const startAngle = this.getIndexAngle(0);\n let offset, width;\n ctx.save();\n ctx.translate(this.xCenter, this.yCenter);\n ctx.rotate(startAngle);\n ctx.textAlign = 'center';\n ctx.textBaseline = 'middle';\n this.ticks.forEach((tick, index) => {\n if (index === 0 && !opts.reverse) {\n return;\n }\n const optsAtIndex = tickOpts.setContext(this.getContext(index));\n const tickFont = toFont(optsAtIndex.font);\n offset = this.getDistanceFromCenterForValue(this.ticks[index].value);\n if (optsAtIndex.showLabelBackdrop) {\n ctx.font = tickFont.string;\n width = ctx.measureText(tick.label).width;\n ctx.fillStyle = optsAtIndex.backdropColor;\n const padding = toPadding(optsAtIndex.backdropPadding);\n ctx.fillRect(\n -width / 2 - padding.left,\n -offset - tickFont.size / 2 - padding.top,\n width + padding.width,\n tickFont.size + padding.height\n );\n }\n renderText(ctx, tick.label, 0, -offset, tickFont, {\n color: optsAtIndex.color,\n });\n });\n ctx.restore();\n }\n drawTitle() {}\n}\nRadialLinearScale.id = 'radialLinear';\nRadialLinearScale.defaults = {\n display: true,\n animate: true,\n position: 'chartArea',\n angleLines: {\n display: true,\n lineWidth: 1,\n borderDash: [],\n borderDashOffset: 0.0\n },\n grid: {\n circular: false\n },\n startAngle: 0,\n ticks: {\n showLabelBackdrop: true,\n callback: Ticks.formatters.numeric\n },\n pointLabels: {\n backdropColor: undefined,\n backdropPadding: 2,\n display: true,\n font: {\n size: 10\n },\n callback(label) {\n return label;\n },\n padding: 5,\n centerPointLabels: false\n }\n};\nRadialLinearScale.defaultRoutes = {\n 'angleLines.color': 'borderColor',\n 'pointLabels.color': 'color',\n 'ticks.color': 'color'\n};\nRadialLinearScale.descriptors = {\n angleLines: {\n _fallback: 'grid'\n }\n};\n\nconst INTERVALS = {\n millisecond: {common: true, size: 1, steps: 1000},\n second: {common: true, size: 1000, steps: 60},\n minute: {common: true, size: 60000, steps: 60},\n hour: {common: true, size: 3600000, steps: 24},\n day: {common: true, size: 86400000, steps: 30},\n week: {common: false, size: 604800000, steps: 4},\n month: {common: true, size: 2.628e9, steps: 12},\n quarter: {common: false, size: 7.884e9, steps: 4},\n year: {common: true, size: 3.154e10}\n};\nconst UNITS = (Object.keys(INTERVALS));\nfunction sorter(a, b) {\n return a - b;\n}\nfunction parse(scale, input) {\n if (isNullOrUndef(input)) {\n return null;\n }\n const adapter = scale._adapter;\n const {parser, round, isoWeekday} = scale._parseOpts;\n let value = input;\n if (typeof parser === 'function') {\n value = parser(value);\n }\n if (!isNumberFinite(value)) {\n value = typeof parser === 'string'\n ? adapter.parse(value, parser)\n : adapter.parse(value);\n }\n if (value === null) {\n return null;\n }\n if (round) {\n value = round === 'week' && (isNumber(isoWeekday) || isoWeekday === true)\n ? adapter.startOf(value, 'isoWeek', isoWeekday)\n : adapter.startOf(value, round);\n }\n return +value;\n}\nfunction determineUnitForAutoTicks(minUnit, min, max, capacity) {\n const ilen = UNITS.length;\n for (let i = UNITS.indexOf(minUnit); i < ilen - 1; ++i) {\n const interval = INTERVALS[UNITS[i]];\n const factor = interval.steps ? interval.steps : Number.MAX_SAFE_INTEGER;\n if (interval.common && Math.ceil((max - min) / (factor * interval.size)) <= capacity) {\n return UNITS[i];\n }\n }\n return UNITS[ilen - 1];\n}\nfunction determineUnitForFormatting(scale, numTicks, minUnit, min, max) {\n for (let i = UNITS.length - 1; i >= UNITS.indexOf(minUnit); i--) {\n const unit = UNITS[i];\n if (INTERVALS[unit].common && scale._adapter.diff(max, min, unit) >= numTicks - 1) {\n return unit;\n }\n }\n return UNITS[minUnit ? UNITS.indexOf(minUnit) : 0];\n}\nfunction determineMajorUnit(unit) {\n for (let i = UNITS.indexOf(unit) + 1, ilen = UNITS.length; i < ilen; ++i) {\n if (INTERVALS[UNITS[i]].common) {\n return UNITS[i];\n }\n }\n}\nfunction addTick(ticks, time, timestamps) {\n if (!timestamps) {\n ticks[time] = true;\n } else if (timestamps.length) {\n const {lo, hi} = _lookup(timestamps, time);\n const timestamp = timestamps[lo] >= time ? timestamps[lo] : timestamps[hi];\n ticks[timestamp] = true;\n }\n}\nfunction setMajorTicks(scale, ticks, map, majorUnit) {\n const adapter = scale._adapter;\n const first = +adapter.startOf(ticks[0].value, majorUnit);\n const last = ticks[ticks.length - 1].value;\n let major, index;\n for (major = first; major <= last; major = +adapter.add(major, 1, majorUnit)) {\n index = map[major];\n if (index >= 0) {\n ticks[index].major = true;\n }\n }\n return ticks;\n}\nfunction ticksFromTimestamps(scale, values, majorUnit) {\n const ticks = [];\n const map = {};\n const ilen = values.length;\n let i, value;\n for (i = 0; i < ilen; ++i) {\n value = values[i];\n map[value] = i;\n ticks.push({\n value,\n major: false\n });\n }\n return (ilen === 0 || !majorUnit) ? ticks : setMajorTicks(scale, ticks, map, majorUnit);\n}\nclass TimeScale extends Scale {\n constructor(props) {\n super(props);\n this._cache = {\n data: [],\n labels: [],\n all: []\n };\n this._unit = 'day';\n this._majorUnit = undefined;\n this._offsets = {};\n this._normalized = false;\n this._parseOpts = undefined;\n }\n init(scaleOpts, opts) {\n const time = scaleOpts.time || (scaleOpts.time = {});\n const adapter = this._adapter = new _adapters._date(scaleOpts.adapters.date);\n mergeIf(time.displayFormats, adapter.formats());\n this._parseOpts = {\n parser: time.parser,\n round: time.round,\n isoWeekday: time.isoWeekday\n };\n super.init(scaleOpts);\n this._normalized = opts.normalized;\n }\n parse(raw, index) {\n if (raw === undefined) {\n return null;\n }\n return parse(this, raw);\n }\n beforeLayout() {\n super.beforeLayout();\n this._cache = {\n data: [],\n labels: [],\n all: []\n };\n }\n determineDataLimits() {\n const options = this.options;\n const adapter = this._adapter;\n const unit = options.time.unit || 'day';\n let {min, max, minDefined, maxDefined} = this.getUserBounds();\n function _applyBounds(bounds) {\n if (!minDefined && !isNaN(bounds.min)) {\n min = Math.min(min, bounds.min);\n }\n if (!maxDefined && !isNaN(bounds.max)) {\n max = Math.max(max, bounds.max);\n }\n }\n if (!minDefined || !maxDefined) {\n _applyBounds(this._getLabelBounds());\n if (options.bounds !== 'ticks' || options.ticks.source !== 'labels') {\n _applyBounds(this.getMinMax(false));\n }\n }\n min = isNumberFinite(min) && !isNaN(min) ? min : +adapter.startOf(Date.now(), unit);\n max = isNumberFinite(max) && !isNaN(max) ? max : +adapter.endOf(Date.now(), unit) + 1;\n this.min = Math.min(min, max - 1);\n this.max = Math.max(min + 1, max);\n }\n _getLabelBounds() {\n const arr = this.getLabelTimestamps();\n let min = Number.POSITIVE_INFINITY;\n let max = Number.NEGATIVE_INFINITY;\n if (arr.length) {\n min = arr[0];\n max = arr[arr.length - 1];\n }\n return {min, max};\n }\n buildTicks() {\n const options = this.options;\n const timeOpts = options.time;\n const tickOpts = options.ticks;\n const timestamps = tickOpts.source === 'labels' ? this.getLabelTimestamps() : this._generate();\n if (options.bounds === 'ticks' && timestamps.length) {\n this.min = this._userMin || timestamps[0];\n this.max = this._userMax || timestamps[timestamps.length - 1];\n }\n const min = this.min;\n const max = this.max;\n const ticks = _filterBetween(timestamps, min, max);\n this._unit = timeOpts.unit || (tickOpts.autoSkip\n ? determineUnitForAutoTicks(timeOpts.minUnit, this.min, this.max, this._getLabelCapacity(min))\n : determineUnitForFormatting(this, ticks.length, timeOpts.minUnit, this.min, this.max));\n this._majorUnit = !tickOpts.major.enabled || this._unit === 'year' ? undefined\n : determineMajorUnit(this._unit);\n this.initOffsets(timestamps);\n if (options.reverse) {\n ticks.reverse();\n }\n return ticksFromTimestamps(this, ticks, this._majorUnit);\n }\n afterAutoSkip() {\n if (this.options.offsetAfterAutoskip) {\n this.initOffsets(this.ticks.map(tick => +tick.value));\n }\n }\n initOffsets(timestamps) {\n let start = 0;\n let end = 0;\n let first, last;\n if (this.options.offset && timestamps.length) {\n first = this.getDecimalForValue(timestamps[0]);\n if (timestamps.length === 1) {\n start = 1 - first;\n } else {\n start = (this.getDecimalForValue(timestamps[1]) - first) / 2;\n }\n last = this.getDecimalForValue(timestamps[timestamps.length - 1]);\n if (timestamps.length === 1) {\n end = last;\n } else {\n end = (last - this.getDecimalForValue(timestamps[timestamps.length - 2])) / 2;\n }\n }\n const limit = timestamps.length < 3 ? 0.5 : 0.25;\n start = _limitValue(start, 0, limit);\n end = _limitValue(end, 0, limit);\n this._offsets = {start, end, factor: 1 / (start + 1 + end)};\n }\n _generate() {\n const adapter = this._adapter;\n const min = this.min;\n const max = this.max;\n const options = this.options;\n const timeOpts = options.time;\n const minor = timeOpts.unit || determineUnitForAutoTicks(timeOpts.minUnit, min, max, this._getLabelCapacity(min));\n const stepSize = valueOrDefault(timeOpts.stepSize, 1);\n const weekday = minor === 'week' ? timeOpts.isoWeekday : false;\n const hasWeekday = isNumber(weekday) || weekday === true;\n const ticks = {};\n let first = min;\n let time, count;\n if (hasWeekday) {\n first = +adapter.startOf(first, 'isoWeek', weekday);\n }\n first = +adapter.startOf(first, hasWeekday ? 'day' : minor);\n if (adapter.diff(max, min, minor) > 100000 * stepSize) {\n throw new Error(min + ' and ' + max + ' are too far apart with stepSize of ' + stepSize + ' ' + minor);\n }\n const timestamps = options.ticks.source === 'data' && this.getDataTimestamps();\n for (time = first, count = 0; time < max; time = +adapter.add(time, stepSize, minor), count++) {\n addTick(ticks, time, timestamps);\n }\n if (time === max || options.bounds === 'ticks' || count === 1) {\n addTick(ticks, time, timestamps);\n }\n return Object.keys(ticks).sort((a, b) => a - b).map(x => +x);\n }\n getLabelForValue(value) {\n const adapter = this._adapter;\n const timeOpts = this.options.time;\n if (timeOpts.tooltipFormat) {\n return adapter.format(value, timeOpts.tooltipFormat);\n }\n return adapter.format(value, timeOpts.displayFormats.datetime);\n }\n _tickFormatFunction(time, index, ticks, format) {\n const options = this.options;\n const formats = options.time.displayFormats;\n const unit = this._unit;\n const majorUnit = this._majorUnit;\n const minorFormat = unit && formats[unit];\n const majorFormat = majorUnit && formats[majorUnit];\n const tick = ticks[index];\n const major = majorUnit && majorFormat && tick && tick.major;\n const label = this._adapter.format(time, format || (major ? majorFormat : minorFormat));\n const formatter = options.ticks.callback;\n return formatter ? callback(formatter, [label, index, ticks], this) : label;\n }\n generateTickLabels(ticks) {\n let i, ilen, tick;\n for (i = 0, ilen = ticks.length; i < ilen; ++i) {\n tick = ticks[i];\n tick.label = this._tickFormatFunction(tick.value, i, ticks);\n }\n }\n getDecimalForValue(value) {\n return value === null ? NaN : (value - this.min) / (this.max - this.min);\n }\n getPixelForValue(value) {\n const offsets = this._offsets;\n const pos = this.getDecimalForValue(value);\n return this.getPixelForDecimal((offsets.start + pos) * offsets.factor);\n }\n getValueForPixel(pixel) {\n const offsets = this._offsets;\n const pos = this.getDecimalForPixel(pixel) / offsets.factor - offsets.end;\n return this.min + pos * (this.max - this.min);\n }\n _getLabelSize(label) {\n const ticksOpts = this.options.ticks;\n const tickLabelWidth = this.ctx.measureText(label).width;\n const angle = toRadians(this.isHorizontal() ? ticksOpts.maxRotation : ticksOpts.minRotation);\n const cosRotation = Math.cos(angle);\n const sinRotation = Math.sin(angle);\n const tickFontSize = this._resolveTickFontOptions(0).size;\n return {\n w: (tickLabelWidth * cosRotation) + (tickFontSize * sinRotation),\n h: (tickLabelWidth * sinRotation) + (tickFontSize * cosRotation)\n };\n }\n _getLabelCapacity(exampleTime) {\n const timeOpts = this.options.time;\n const displayFormats = timeOpts.displayFormats;\n const format = displayFormats[timeOpts.unit] || displayFormats.millisecond;\n const exampleLabel = this._tickFormatFunction(exampleTime, 0, ticksFromTimestamps(this, [exampleTime], this._majorUnit), format);\n const size = this._getLabelSize(exampleLabel);\n const capacity = Math.floor(this.isHorizontal() ? this.width / size.w : this.height / size.h) - 1;\n return capacity > 0 ? capacity : 1;\n }\n getDataTimestamps() {\n let timestamps = this._cache.data || [];\n let i, ilen;\n if (timestamps.length) {\n return timestamps;\n }\n const metas = this.getMatchingVisibleMetas();\n if (this._normalized && metas.length) {\n return (this._cache.data = metas[0].controller.getAllParsedValues(this));\n }\n for (i = 0, ilen = metas.length; i < ilen; ++i) {\n timestamps = timestamps.concat(metas[i].controller.getAllParsedValues(this));\n }\n return (this._cache.data = this.normalize(timestamps));\n }\n getLabelTimestamps() {\n 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prevTarget} = table[lo]);\n ({pos: nextSource, time: nextTarget} = table[hi]);\n } else {\n if (val >= table[lo].time && val <= table[hi].time) {\n ({lo, hi} = _lookupByKey(table, 'time', val));\n }\n ({time: prevSource, pos: prevTarget} = table[lo]);\n ({time: nextSource, pos: nextTarget} = table[hi]);\n }\n const span = nextSource - prevSource;\n return span ? prevTarget + (nextTarget - prevTarget) * (val - prevSource) / span : prevTarget;\n}\nclass TimeSeriesScale extends TimeScale {\n constructor(props) {\n super(props);\n this._table = [];\n this._minPos = undefined;\n this._tableRange = undefined;\n }\n initOffsets() {\n const timestamps = this._getTimestampsForTable();\n const table = this._table = this.buildLookupTable(timestamps);\n this._minPos = interpolate(table, this.min);\n this._tableRange = interpolate(table, this.max) - this._minPos;\n super.initOffsets(timestamps);\n }\n buildLookupTable(timestamps) {\n const {min, max} = this;\n const items = [];\n const table = [];\n let i, ilen, prev, curr, next;\n for (i = 0, ilen = timestamps.length; i < ilen; ++i) {\n curr = timestamps[i];\n if (curr >= min && curr <= max) {\n items.push(curr);\n }\n }\n if (items.length < 2) {\n return [\n {time: min, pos: 0},\n {time: max, pos: 1}\n ];\n }\n for (i = 0, ilen = items.length; i < ilen; ++i) {\n next = items[i + 1];\n prev = items[i - 1];\n curr = items[i];\n if (Math.round((next + prev) / 2) !== curr) {\n table.push({time: curr, pos: i / (ilen - 1)});\n }\n }\n return table;\n }\n _getTimestampsForTable() {\n let timestamps = this._cache.all || [];\n if (timestamps.length) {\n return timestamps;\n }\n const data = this.getDataTimestamps();\n const label = this.getLabelTimestamps();\n if (data.length && label.length) {\n timestamps = this.normalize(data.concat(label));\n } else {\n timestamps = data.length ? data : label;\n }\n timestamps = this._cache.all = timestamps;\n return timestamps;\n }\n getDecimalForValue(value) {\n return 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\ No newline at end of file +{"version":3,"file":"chartjs-lazy.min.js","sources":["../src/chartjs-lazy.js"],"sourcesContent":["/*!\n * Chart.js v4.2.1\n * https://www.chartjs.org\n * (c) 2023 Chart.js Contributors\n * Released under the MIT License\n */\n\n/**\n * Description of import into Moodle:\n *\n * - Download Chartjs source code (zip) file from https://github.com/chartjs/Chart.js/releases/latest.\n * - You must build Chart.js to generate the dist files (https://www.chartjs.org/docs/latest/developers/contributing.html#building-and-testing).\n * Chart.js will generate a new file dist/chart.umd.js with minified format, in order to avoid the minification\n * we need to modify rollup.config.js, find below code in the file:\n * ```\n * 1. // UMD build\n * 2. // dist/chart.umd.js\n * 3. {\n * 4. input: 'src/index.umd.ts',\n * 5. plugins: plugins(true),\n * 6. output: {\n * 7. ...\n * 8. },\n * 9. },\n * ```\n *\n * Change line 5 into:\n * ```\n * plugins: plugins(),\n * ```\n *\n * Save the file and run build script again.\n *\n * - Copy /dist/chart.umd.js content to lib/amd/src/chartjs-lazy.js.\n * - Remove below line in the lib/amd/src/chartjs-lazy.js:\n * ```\n * //# sourceMappingURL=chart.umd.js.map\n * ```\n * - Convert line endings to LF-Unix format.\n * - Change the version number and the copyright year at the file header block.\n * - Keep these instructions in the file.\n * - Visit lib/tests/other/chartjstestpage.php to see if the library still works after the update.\n *\n */\n\n(function (global, factory) {\ntypeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :\ntypeof define === 'function' && define.amd ? define(factory) :\n(global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.Chart = factory());\n})(this, (function () { 'use strict';\n\nvar plugins = /*#__PURE__*/Object.freeze({\n__proto__: null,\nget Colors () { return plugin_colors; },\nget Decimation () { return plugin_decimation; 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= Object.prototype.toString.call(value);\n if (type.slice(0, 7) === '[object' && type.slice(-6) === 'Array]') {\n return true;\n }\n return false;\n}\n/**\n * Returns true if `value` is an object (excluding null), else returns false.\n * @param value - The value to test.\n * @since 2.7.0\n */ function isObject(value) {\n return value !== null && Object.prototype.toString.call(value) === '[object Object]';\n}\n/**\n * Returns true if `value` is a finite number, else returns false\n * @param value - The value to test.\n */ function isNumberFinite(value) {\n return (typeof value === 'number' || value instanceof Number) && isFinite(+value);\n}\n/**\n * Returns `value` if finite, else returns `defaultValue`.\n * @param value - The value to return if defined.\n * @param defaultValue - The value to return if `value` is not finite.\n */ function finiteOrDefault(value, defaultValue) {\n return isNumberFinite(value) ? value : defaultValue;\n}\n/**\n * Returns `value` if defined, else returns 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If `fn` is not a function, this method returns undefined.\n * @param fn - The function to call.\n * @param args - The arguments with which `fn` should be called.\n * @param [thisArg] - The value of `this` provided for the call to `fn`.\n */ function callback(fn, args, thisArg) {\n if (fn && typeof fn.call === 'function') {\n return fn.apply(thisArg, args);\n }\n}\nfunction each(loopable, fn, thisArg, reverse) {\n let i, len, keys;\n if (isArray(loopable)) {\n len = loopable.length;\n if (reverse) {\n for(i = len - 1; i >= 0; i--){\n fn.call(thisArg, loopable[i], i);\n }\n } else {\n for(i = 0; i < len; i++){\n fn.call(thisArg, loopable[i], i);\n }\n }\n } else if (isObject(loopable)) {\n keys = Object.keys(loopable);\n len = keys.length;\n for(i = 0; i < len; i++){\n fn.call(thisArg, loopable[keys[i]], keys[i]);\n }\n }\n}\n/**\n * Returns true if the `a0` and `a1` arrays have the same content, else returns false.\n * @param a0 - The array to compare\n * @param a1 - The array to compare\n * @private\n */ function _elementsEqual(a0, a1) {\n let i, ilen, v0, v1;\n if (!a0 || !a1 || a0.length !== a1.length) {\n return false;\n }\n for(i = 0, ilen = a0.length; i < ilen; ++i){\n v0 = a0[i];\n v1 = a1[i];\n if (v0.datasetIndex !== v1.datasetIndex || v0.index !== v1.index) {\n return false;\n }\n }\n return true;\n}\n/**\n * Returns a deep copy of `source` without keeping references on objects and arrays.\n * @param source - The value to clone.\n */ function clone$1(source) {\n if (isArray(source)) {\n return source.map(clone$1);\n }\n if (isObject(source)) {\n const target = Object.create(null);\n const keys = Object.keys(source);\n const klen = keys.length;\n let k = 0;\n for(; k < klen; ++k){\n target[keys[k]] = clone$1(source[keys[k]]);\n }\n return target;\n }\n return source;\n}\nfunction isValidKey(key) {\n return [\n '__proto__',\n 'prototype',\n 'constructor'\n ].indexOf(key) === -1;\n}\n/**\n * The default merger when Chart.helpers.merge is called without merger option.\n * Note(SB): also used by mergeConfig and mergeScaleConfig as fallback.\n * @private\n */ function _merger(key, target, source, options) {\n if (!isValidKey(key)) {\n return;\n }\n const tval = target[key];\n const sval = source[key];\n if (isObject(tval) && isObject(sval)) {\n // eslint-disable-next-line @typescript-eslint/no-use-before-define\n merge(tval, sval, options);\n } else {\n target[key] = clone$1(sval);\n }\n}\nfunction merge(target, source, options) {\n const sources = isArray(source) ? source : [\n source\n ];\n const ilen = sources.length;\n if (!isObject(target)) {\n return target;\n }\n options = options || {};\n const merger = options.merger || _merger;\n let current;\n for(let i = 0; i < ilen; ++i){\n current = sources[i];\n if (!isObject(current)) {\n continue;\n }\n const keys = Object.keys(current);\n for(let k = 0, klen = keys.length; k < klen; ++k){\n merger(keys[k], target, current, options);\n }\n }\n return target;\n}\nfunction mergeIf(target, source) {\n // eslint-disable-next-line @typescript-eslint/no-use-before-define\n return merge(target, source, {\n merger: _mergerIf\n });\n}\n/**\n * Merges source[key] in target[key] only if target[key] is undefined.\n * @private\n */ function _mergerIf(key, target, source) {\n if (!isValidKey(key)) {\n return;\n }\n const tval = target[key];\n const sval = source[key];\n if (isObject(tval) && isObject(sval)) {\n mergeIf(tval, sval);\n } else if (!Object.prototype.hasOwnProperty.call(target, key)) {\n target[key] = clone$1(sval);\n }\n}\n/**\n * @private\n */ function _deprecated(scope, value, previous, current) {\n if (value !== undefined) {\n console.warn(scope + ': \"' + previous + '\" is deprecated. Please use \"' + current + '\" instead');\n }\n}\n// resolveObjectKey resolver cache\nconst keyResolvers = {\n // Chart.helpers.core resolveObjectKey should resolve empty key to root object\n '': (v)=>v,\n // default resolvers\n x: (o)=>o.x,\n y: (o)=>o.y\n};\n/**\n * @private\n */ function _splitKey(key) {\n const parts = key.split('.');\n const keys = [];\n let tmp = '';\n for (const part of parts){\n tmp += part;\n if (tmp.endsWith('\\\\')) {\n tmp = tmp.slice(0, -1) + '.';\n } else {\n keys.push(tmp);\n tmp = '';\n }\n }\n return keys;\n}\nfunction _getKeyResolver(key) {\n const keys = _splitKey(key);\n return (obj)=>{\n for (const k of keys){\n if (k === '') {\n break;\n }\n obj = obj && obj[k];\n }\n return obj;\n };\n}\nfunction resolveObjectKey(obj, key) {\n const resolver = keyResolvers[key] || (keyResolvers[key] = _getKeyResolver(key));\n return resolver(obj);\n}\n/**\n * @private\n */ function _capitalize(str) {\n return str.charAt(0).toUpperCase() + str.slice(1);\n}\nconst defined = (value)=>typeof value !== 'undefined';\nconst isFunction = (value)=>typeof value === 'function';\n// Adapted from https://stackoverflow.com/questions/31128855/comparing-ecma6-sets-for-equality#31129384\nconst setsEqual = (a, b)=>{\n if (a.size !== b.size) {\n return false;\n }\n for (const item of a){\n if (!b.has(item)) {\n return false;\n }\n }\n return true;\n};\n/**\n * @param e - The event\n * @private\n */ function _isClickEvent(e) {\n return e.type === 'mouseup' || e.type === 'click' || e.type === 'contextmenu';\n}\n\n/**\n * @alias Chart.helpers.math\n * @namespace\n */ const PI = Math.PI;\nconst TAU = 2 * PI;\nconst PITAU = TAU + PI;\nconst INFINITY = Number.POSITIVE_INFINITY;\nconst RAD_PER_DEG = PI / 180;\nconst HALF_PI = PI / 2;\nconst QUARTER_PI = PI / 4;\nconst TWO_THIRDS_PI = PI * 2 / 3;\nconst log10 = Math.log10;\nconst sign = Math.sign;\nfunction almostEquals(x, y, epsilon) {\n return Math.abs(x - y) < epsilon;\n}\n/**\n * Implementation of the nice number algorithm used in determining where axis labels will go\n */ function niceNum(range) {\n const roundedRange = Math.round(range);\n range = almostEquals(range, roundedRange, range / 1000) ? roundedRange : range;\n const niceRange = Math.pow(10, Math.floor(log10(range)));\n const fraction = range / niceRange;\n const niceFraction = fraction <= 1 ? 1 : fraction <= 2 ? 2 : fraction <= 5 ? 5 : 10;\n return niceFraction * niceRange;\n}\n/**\n * Returns an array of factors sorted from 1 to sqrt(value)\n * @private\n */ function _factorize(value) {\n const result = [];\n const sqrt = Math.sqrt(value);\n let i;\n for(i = 1; i < sqrt; i++){\n if (value % i === 0) {\n result.push(i);\n result.push(value / i);\n }\n }\n if (sqrt === (sqrt | 0)) {\n result.push(sqrt);\n }\n result.sort((a, b)=>a - b).pop();\n return result;\n}\nfunction isNumber(n) {\n return !isNaN(parseFloat(n)) && isFinite(n);\n}\nfunction almostWhole(x, epsilon) {\n const rounded = Math.round(x);\n return rounded - epsilon <= x && rounded + epsilon >= x;\n}\n/**\n * @private\n */ function _setMinAndMaxByKey(array, target, property) {\n let i, ilen, value;\n for(i = 0, ilen = array.length; i < ilen; i++){\n value = array[i][property];\n if (!isNaN(value)) {\n target.min = Math.min(target.min, value);\n target.max = Math.max(target.max, value);\n }\n }\n}\nfunction toRadians(degrees) {\n return degrees * (PI / 180);\n}\nfunction toDegrees(radians) {\n return radians * (180 / PI);\n}\n/**\n * Returns the number of decimal places\n * i.e. the number of digits after the decimal point, of the value of this Number.\n * @param x - A number.\n * @returns The number of decimal places.\n * @private\n */ function _decimalPlaces(x) {\n if (!isNumberFinite(x)) {\n return;\n }\n let e = 1;\n let p = 0;\n while(Math.round(x * e) / e !== x){\n e *= 10;\n p++;\n }\n return p;\n}\n// Gets the angle from vertical upright to the point about a centre.\nfunction getAngleFromPoint(centrePoint, anglePoint) {\n const distanceFromXCenter = anglePoint.x - centrePoint.x;\n const distanceFromYCenter = anglePoint.y - centrePoint.y;\n const radialDistanceFromCenter = Math.sqrt(distanceFromXCenter * distanceFromXCenter + distanceFromYCenter * distanceFromYCenter);\n let angle = Math.atan2(distanceFromYCenter, distanceFromXCenter);\n if (angle < -0.5 * PI) {\n angle += TAU; // make sure the returned angle is in the range of (-PI/2, 3PI/2]\n }\n return {\n angle,\n distance: radialDistanceFromCenter\n };\n}\nfunction distanceBetweenPoints(pt1, pt2) {\n return Math.sqrt(Math.pow(pt2.x - pt1.x, 2) + Math.pow(pt2.y - pt1.y, 2));\n}\n/**\n * Shortest distance between angles, in either direction.\n * @private\n */ function _angleDiff(a, b) {\n return (a - b + PITAU) % TAU - PI;\n}\n/**\n * Normalize angle to be between 0 and 2*PI\n * @private\n */ function _normalizeAngle(a) {\n return (a % TAU + TAU) % TAU;\n}\n/**\n * @private\n */ function _angleBetween(angle, start, end, sameAngleIsFullCircle) {\n const a = _normalizeAngle(angle);\n const s = _normalizeAngle(start);\n const e = _normalizeAngle(end);\n const angleToStart = _normalizeAngle(s - a);\n const angleToEnd = _normalizeAngle(e - a);\n const startToAngle = _normalizeAngle(a - s);\n const endToAngle = _normalizeAngle(a - e);\n return a === s || a === e || sameAngleIsFullCircle && s === e || angleToStart > angleToEnd && startToAngle < endToAngle;\n}\n/**\n * Limit `value` between `min` and `max`\n * @param value\n * @param min\n * @param max\n * @private\n */ function _limitValue(value, min, max) {\n return Math.max(min, Math.min(max, value));\n}\n/**\n * @param {number} value\n * @private\n */ function _int16Range(value) {\n return _limitValue(value, -32768, 32767);\n}\n/**\n * @param value\n * @param start\n * @param end\n * @param [epsilon]\n * @private\n */ function _isBetween(value, start, end, epsilon = 1e-6) {\n return value >= Math.min(start, end) - epsilon && value <= Math.max(start, end) + epsilon;\n}\n\nfunction _lookup(table, value, cmp) {\n cmp = cmp || ((index)=>table[index] < value);\n let hi = table.length - 1;\n let lo = 0;\n let mid;\n while(hi - lo > 1){\n mid = lo + hi >> 1;\n if (cmp(mid)) {\n lo = mid;\n } else {\n hi = mid;\n }\n }\n return {\n lo,\n hi\n };\n}\n/**\n * Binary search\n * @param table - the table search. must be sorted!\n * @param key - property name for the value in each entry\n * @param value - value to find\n * @param last - lookup last index\n * @private\n */ const _lookupByKey = (table, key, value, last)=>_lookup(table, value, last ? (index)=>{\n const ti = table[index][key];\n return ti < value || ti === value && table[index + 1][key] === value;\n } : (index)=>table[index][key] < value);\n/**\n * Reverse binary search\n * @param table - the table search. must be sorted!\n * @param key - property name for the value in each entry\n * @param value - value to find\n * @private\n */ const _rlookupByKey = (table, key, value)=>_lookup(table, value, (index)=>table[index][key] >= value);\n/**\n * Return subset of `values` between `min` and `max` inclusive.\n * Values are assumed to be in sorted order.\n * @param values - sorted array of values\n * @param min - min value\n * @param max - max value\n */ function _filterBetween(values, min, max) {\n let start = 0;\n let end = values.length;\n while(start < end && values[start] < min){\n start++;\n }\n while(end > start && values[end - 1] > max){\n end--;\n }\n return start > 0 || end < values.length ? values.slice(start, end) : values;\n}\nconst arrayEvents = [\n 'push',\n 'pop',\n 'shift',\n 'splice',\n 'unshift'\n];\nfunction listenArrayEvents(array, listener) {\n if (array._chartjs) {\n array._chartjs.listeners.push(listener);\n return;\n }\n Object.defineProperty(array, '_chartjs', {\n configurable: true,\n enumerable: false,\n value: {\n listeners: [\n listener\n ]\n }\n });\n arrayEvents.forEach((key)=>{\n const method = '_onData' + _capitalize(key);\n const base = array[key];\n Object.defineProperty(array, key, {\n configurable: true,\n enumerable: false,\n value (...args) {\n const res = base.apply(this, args);\n array._chartjs.listeners.forEach((object)=>{\n if (typeof object[method] === 'function') {\n object[method](...args);\n }\n });\n return res;\n }\n });\n });\n}\nfunction unlistenArrayEvents(array, listener) {\n const stub = array._chartjs;\n if (!stub) {\n return;\n }\n const listeners = stub.listeners;\n const index = listeners.indexOf(listener);\n if (index !== -1) {\n listeners.splice(index, 1);\n }\n if (listeners.length > 0) {\n return;\n }\n arrayEvents.forEach((key)=>{\n delete array[key];\n });\n delete array._chartjs;\n}\n/**\n * @param items\n */ function _arrayUnique(items) {\n const set = new Set();\n let i, ilen;\n for(i = 0, ilen = items.length; i < ilen; ++i){\n set.add(items[i]);\n }\n if (set.size === ilen) {\n return items;\n }\n return Array.from(set);\n}\n\nfunction fontString(pixelSize, fontStyle, fontFamily) {\n return fontStyle + ' ' + pixelSize + 'px ' + fontFamily;\n}\n/**\n* Request animation polyfill\n*/ const requestAnimFrame = function() {\n if (typeof window === 'undefined') {\n return function(callback) {\n return callback();\n };\n }\n return window.requestAnimationFrame;\n}();\n/**\n * Throttles calling `fn` once per animation frame\n * Latest arguments are used on the actual call\n */ function throttled(fn, thisArg) {\n let argsToUse = [];\n let ticking = false;\n return function(...args) {\n // Save the args for use later\n argsToUse = args;\n if (!ticking) {\n ticking = true;\n requestAnimFrame.call(window, ()=>{\n ticking = false;\n fn.apply(thisArg, argsToUse);\n });\n }\n };\n}\n/**\n * Debounces calling `fn` for `delay` ms\n */ function debounce(fn, delay) {\n let timeout;\n return function(...args) {\n if (delay) {\n clearTimeout(timeout);\n timeout = setTimeout(fn, delay, args);\n } else {\n fn.apply(this, args);\n }\n return delay;\n };\n}\n/**\n * Converts 'start' to 'left', 'end' to 'right' and others to 'center'\n * @private\n */ const _toLeftRightCenter = (align)=>align === 'start' ? 'left' : align === 'end' ? 'right' : 'center';\n/**\n * Returns `start`, `end` or `(start + end) / 2` depending on `align`. Defaults to `center`\n * @private\n */ const _alignStartEnd = (align, start, end)=>align === 'start' ? start : align === 'end' ? end : (start + end) / 2;\n/**\n * Returns `left`, `right` or `(left + right) / 2` depending on `align`. Defaults to `left`\n * @private\n */ const _textX = (align, left, right, rtl)=>{\n const check = rtl ? 'left' : 'right';\n return align === check ? right : align === 'center' ? (left + right) / 2 : left;\n};\n/**\n * Return start and count of visible points.\n * @private\n */ function _getStartAndCountOfVisiblePoints(meta, points, animationsDisabled) {\n const pointCount = points.length;\n let start = 0;\n let count = pointCount;\n if (meta._sorted) {\n const { iScale , _parsed } = meta;\n const axis = iScale.axis;\n const { min , max , minDefined , maxDefined } = iScale.getUserBounds();\n if (minDefined) {\n start = _limitValue(Math.min(// @ts-expect-error Need to type _parsed\n _lookupByKey(_parsed, iScale.axis, min).lo, // @ts-expect-error Need to fix types on _lookupByKey\n animationsDisabled ? pointCount : _lookupByKey(points, axis, iScale.getPixelForValue(min)).lo), 0, pointCount - 1);\n }\n if (maxDefined) {\n count = _limitValue(Math.max(// @ts-expect-error Need to type _parsed\n _lookupByKey(_parsed, iScale.axis, max, true).hi + 1, // @ts-expect-error Need to fix types on _lookupByKey\n animationsDisabled ? 0 : _lookupByKey(points, axis, iScale.getPixelForValue(max), true).hi + 1), start, pointCount) - start;\n } else {\n count = pointCount - start;\n }\n }\n return {\n start,\n count\n };\n}\n/**\n * Checks if the scale ranges have changed.\n * @param {object} meta - dataset meta.\n * @returns {boolean}\n * @private\n */ function _scaleRangesChanged(meta) {\n const { xScale , yScale , _scaleRanges } = meta;\n const newRanges = {\n xmin: xScale.min,\n xmax: xScale.max,\n ymin: yScale.min,\n ymax: yScale.max\n };\n if (!_scaleRanges) {\n meta._scaleRanges = newRanges;\n return true;\n }\n const changed = _scaleRanges.xmin !== xScale.min || _scaleRanges.xmax !== xScale.max || _scaleRanges.ymin !== yScale.min || _scaleRanges.ymax !== yScale.max;\n Object.assign(_scaleRanges, newRanges);\n return changed;\n}\n\nclass Animator {\n constructor(){\n this._request = null;\n this._charts = new Map();\n this._running = false;\n this._lastDate = undefined;\n }\n _notify(chart, anims, date, type) {\n const callbacks = anims.listeners[type];\n const numSteps = anims.duration;\n callbacks.forEach((fn)=>fn({\n chart,\n initial: anims.initial,\n numSteps,\n currentStep: Math.min(date - anims.start, numSteps)\n }));\n }\n _refresh() {\n if (this._request) {\n return;\n }\n this._running = true;\n this._request = requestAnimFrame.call(window, ()=>{\n this._update();\n this._request = null;\n if (this._running) {\n this._refresh();\n }\n });\n }\n _update(date = Date.now()) {\n let remaining = 0;\n this._charts.forEach((anims, chart)=>{\n if (!anims.running || !anims.items.length) {\n return;\n }\n const items = anims.items;\n let i = items.length - 1;\n let draw = false;\n let item;\n for(; i >= 0; --i){\n item = items[i];\n if (item._active) {\n if (item._total > anims.duration) {\n anims.duration = item._total;\n }\n item.tick(date);\n draw = true;\n } else {\n items[i] = items[items.length - 1];\n items.pop();\n }\n }\n if (draw) {\n chart.draw();\n this._notify(chart, anims, date, 'progress');\n }\n if (!items.length) {\n anims.running = false;\n this._notify(chart, anims, date, 'complete');\n anims.initial = false;\n }\n remaining += items.length;\n });\n this._lastDate = date;\n if (remaining === 0) {\n this._running = false;\n }\n }\n _getAnims(chart) {\n const charts = this._charts;\n let anims = charts.get(chart);\n if (!anims) {\n anims = {\n running: false,\n initial: true,\n items: [],\n listeners: {\n complete: [],\n progress: []\n }\n };\n charts.set(chart, anims);\n }\n return anims;\n }\n listen(chart, event, cb) {\n this._getAnims(chart).listeners[event].push(cb);\n }\n add(chart, items) {\n if (!items || !items.length) {\n return;\n }\n this._getAnims(chart).items.push(...items);\n }\n has(chart) {\n return this._getAnims(chart).items.length > 0;\n }\n start(chart) {\n const anims = this._charts.get(chart);\n if (!anims) {\n return;\n }\n anims.running = true;\n anims.start = Date.now();\n anims.duration = anims.items.reduce((acc, cur)=>Math.max(acc, cur._duration), 0);\n this._refresh();\n }\n running(chart) {\n if (!this._running) {\n return false;\n }\n const anims = this._charts.get(chart);\n if (!anims || !anims.running || !anims.items.length) {\n return false;\n }\n return true;\n }\n stop(chart) {\n const anims = this._charts.get(chart);\n if (!anims || !anims.items.length) {\n return;\n }\n const items = anims.items;\n let i = items.length - 1;\n for(; i >= 0; --i){\n items[i].cancel();\n }\n anims.items = [];\n this._notify(chart, anims, Date.now(), 'complete');\n }\n remove(chart) {\n return this._charts.delete(chart);\n }\n}\nvar animator = /* #__PURE__ */ new Animator();\n\n/*!\n * @kurkle/color v0.3.0\n * https://github.com/kurkle/color#readme\n * (c) 2022 Jukka Kurkela\n * Released under the MIT License\n */\nfunction round(v) {\n return v + 0.5 | 0;\n}\nconst lim = (v, l, h) => Math.max(Math.min(v, h), l);\nfunction p2b(v) {\n return lim(round(v * 2.55), 0, 255);\n}\nfunction n2b(v) {\n return lim(round(v * 255), 0, 255);\n}\nfunction b2n(v) {\n return lim(round(v / 2.55) / 100, 0, 1);\n}\nfunction n2p(v) {\n return lim(round(v * 100), 0, 100);\n}\nconst map$1 = {0: 0, 1: 1, 2: 2, 3: 3, 4: 4, 5: 5, 6: 6, 7: 7, 8: 8, 9: 9, A: 10, B: 11, C: 12, D: 13, E: 14, F: 15, a: 10, b: 11, c: 12, d: 13, e: 14, f: 15};\nconst hex = [...'0123456789ABCDEF'];\nconst h1 = b => hex[b & 0xF];\nconst h2 = b => hex[(b & 0xF0) >> 4] + hex[b & 0xF];\nconst eq = b => ((b & 0xF0) >> 4) === (b & 0xF);\nconst isShort = v => eq(v.r) && eq(v.g) && eq(v.b) && eq(v.a);\nfunction hexParse(str) {\n var len = str.length;\n var ret;\n if (str[0] === '#') {\n if (len === 4 || len === 5) {\n ret = {\n r: 255 & map$1[str[1]] * 17,\n g: 255 & map$1[str[2]] * 17,\n b: 255 & map$1[str[3]] * 17,\n a: len === 5 ? map$1[str[4]] * 17 : 255\n };\n } else if (len === 7 || len === 9) {\n ret = {\n r: map$1[str[1]] << 4 | map$1[str[2]],\n g: map$1[str[3]] << 4 | map$1[str[4]],\n b: map$1[str[5]] << 4 | map$1[str[6]],\n a: len === 9 ? (map$1[str[7]] << 4 | map$1[str[8]]) : 255\n };\n }\n }\n return ret;\n}\nconst alpha = (a, f) => a < 255 ? f(a) : '';\nfunction hexString(v) {\n var f = isShort(v) ? h1 : h2;\n return v\n ? '#' + f(v.r) + f(v.g) + f(v.b) + alpha(v.a, f)\n : undefined;\n}\nconst HUE_RE = /^(hsla?|hwb|hsv)\\(\\s*([-+.e\\d]+)(?:deg)?[\\s,]+([-+.e\\d]+)%[\\s,]+([-+.e\\d]+)%(?:[\\s,]+([-+.e\\d]+)(%)?)?\\s*\\)$/;\nfunction hsl2rgbn(h, s, l) {\n const a = s * Math.min(l, 1 - l);\n const f = (n, k = (n + h / 30) % 12) => l - a * Math.max(Math.min(k - 3, 9 - k, 1), -1);\n return [f(0), f(8), f(4)];\n}\nfunction hsv2rgbn(h, s, v) {\n const f = (n, k = (n + h / 60) % 6) => v - v * s * Math.max(Math.min(k, 4 - k, 1), 0);\n return [f(5), f(3), f(1)];\n}\nfunction hwb2rgbn(h, w, b) {\n const rgb = hsl2rgbn(h, 1, 0.5);\n let i;\n if (w + b > 1) {\n i = 1 / (w + b);\n w *= i;\n b *= i;\n }\n for (i = 0; i < 3; i++) {\n rgb[i] *= 1 - w - b;\n rgb[i] += w;\n }\n return rgb;\n}\nfunction hueValue(r, g, b, d, max) {\n if (r === max) {\n return ((g - b) / d) + (g < b ? 6 : 0);\n }\n if (g === max) {\n return (b - r) / d + 2;\n }\n return (r - g) / d + 4;\n}\nfunction rgb2hsl(v) {\n const range = 255;\n const r = v.r / range;\n const g = v.g / range;\n const b = v.b / range;\n const max = Math.max(r, g, b);\n const min = Math.min(r, g, b);\n const l = (max + min) / 2;\n let h, s, d;\n if (max !== min) {\n d = max - min;\n s = l > 0.5 ? d / (2 - max - min) : d / (max + min);\n h = hueValue(r, g, b, d, max);\n h = h * 60 + 0.5;\n }\n return [h | 0, s || 0, l];\n}\nfunction calln(f, a, b, c) {\n return (\n Array.isArray(a)\n ? f(a[0], a[1], a[2])\n : f(a, b, c)\n ).map(n2b);\n}\nfunction hsl2rgb(h, s, l) {\n return calln(hsl2rgbn, h, s, l);\n}\nfunction hwb2rgb(h, w, b) {\n return calln(hwb2rgbn, h, w, b);\n}\nfunction hsv2rgb(h, s, v) {\n return calln(hsv2rgbn, h, s, v);\n}\nfunction hue(h) {\n return (h % 360 + 360) % 360;\n}\nfunction hueParse(str) {\n const m = HUE_RE.exec(str);\n let a = 255;\n let v;\n if (!m) {\n return;\n }\n if (m[5] !== v) {\n a = m[6] ? p2b(+m[5]) : n2b(+m[5]);\n }\n const h = hue(+m[2]);\n const p1 = +m[3] / 100;\n const p2 = +m[4] / 100;\n if (m[1] === 'hwb') {\n v = hwb2rgb(h, p1, p2);\n } else if (m[1] === 'hsv') {\n v = hsv2rgb(h, p1, p2);\n } else {\n v = hsl2rgb(h, p1, p2);\n }\n return {\n r: v[0],\n g: v[1],\n b: v[2],\n a: a\n };\n}\nfunction rotate(v, deg) {\n var h = rgb2hsl(v);\n h[0] = hue(h[0] + deg);\n h = hsl2rgb(h);\n v.r = h[0];\n v.g = h[1];\n v.b = h[2];\n}\nfunction hslString(v) {\n if (!v) {\n return;\n }\n const a = rgb2hsl(v);\n const h = a[0];\n const s = n2p(a[1]);\n const l = n2p(a[2]);\n return v.a < 255\n ? `hsla(${h}, ${s}%, ${l}%, ${b2n(v.a)})`\n : `hsl(${h}, ${s}%, ${l}%)`;\n}\nconst map$2 = {\n x: 'dark',\n Z: 'light',\n Y: 're',\n X: 'blu',\n W: 'gr',\n V: 'medium',\n U: 'slate',\n A: 'ee',\n T: 'ol',\n S: 'or',\n B: 'ra',\n C: 'lateg',\n D: 'ights',\n R: 'in',\n Q: 'turquois',\n E: 'hi',\n P: 'ro',\n O: 'al',\n N: 'le',\n M: 'de',\n L: 'yello',\n F: 'en',\n K: 'ch',\n G: 'arks',\n H: 'ea',\n I: 'ightg',\n J: 'wh'\n};\nconst names$1 = {\n OiceXe: 'f0f8ff',\n antiquewEte: 'faebd7',\n aqua: 'ffff',\n aquamarRe: '7fffd4',\n azuY: 'f0ffff',\n beige: 'f5f5dc',\n bisque: 'ffe4c4',\n black: '0',\n blanKedOmond: 'ffebcd',\n Xe: 'ff',\n XeviTet: '8a2be2',\n bPwn: 'a52a2a',\n burlywood: 'deb887',\n caMtXe: '5f9ea0',\n KartYuse: '7fff00',\n KocTate: 'd2691e',\n cSO: 'ff7f50',\n cSnflowerXe: '6495ed',\n cSnsilk: 'fff8dc',\n crimson: 'dc143c',\n cyan: 'ffff',\n xXe: '8b',\n xcyan: '8b8b',\n xgTMnPd: 'b8860b',\n xWay: 'a9a9a9',\n xgYF: '6400',\n xgYy: 'a9a9a9',\n xkhaki: 'bdb76b',\n xmagFta: '8b008b',\n xTivegYF: '556b2f',\n xSange: 'ff8c00',\n xScEd: '9932cc',\n xYd: '8b0000',\n xsOmon: 'e9967a',\n xsHgYF: '8fbc8f',\n xUXe: '483d8b',\n xUWay: '2f4f4f',\n xUgYy: '2f4f4f',\n xQe: 'ced1',\n xviTet: '9400d3',\n dAppRk: 'ff1493',\n dApskyXe: 'bfff',\n dimWay: '696969',\n dimgYy: '696969',\n dodgerXe: '1e90ff',\n fiYbrick: 'b22222',\n flSOwEte: 'fffaf0',\n foYstWAn: '228b22',\n fuKsia: 'ff00ff',\n gaRsbSo: 'dcdcdc',\n ghostwEte: 'f8f8ff',\n gTd: 'ffd700',\n gTMnPd: 'daa520',\n Way: '808080',\n gYF: '8000',\n gYFLw: 'adff2f',\n gYy: '808080',\n honeyMw: 'f0fff0',\n hotpRk: 'ff69b4',\n RdianYd: 'cd5c5c',\n Rdigo: '4b0082',\n ivSy: 'fffff0',\n khaki: 'f0e68c',\n lavFMr: 'e6e6fa',\n lavFMrXsh: 'fff0f5',\n lawngYF: '7cfc00',\n NmoncEffon: 'fffacd',\n ZXe: 'add8e6',\n ZcSO: 'f08080',\n Zcyan: 'e0ffff',\n ZgTMnPdLw: 'fafad2',\n ZWay: 'd3d3d3',\n ZgYF: '90ee90',\n ZgYy: 'd3d3d3',\n ZpRk: 'ffb6c1',\n ZsOmon: 'ffa07a',\n ZsHgYF: '20b2aa',\n ZskyXe: '87cefa',\n ZUWay: '778899',\n ZUgYy: '778899',\n ZstAlXe: 'b0c4de',\n ZLw: 'ffffe0',\n lime: 'ff00',\n limegYF: '32cd32',\n lRF: 'faf0e6',\n magFta: 'ff00ff',\n maPon: '800000',\n VaquamarRe: '66cdaa',\n VXe: 'cd',\n VScEd: 'ba55d3',\n VpurpN: '9370db',\n VsHgYF: '3cb371',\n VUXe: '7b68ee',\n VsprRggYF: 'fa9a',\n VQe: '48d1cc',\n VviTetYd: 'c71585',\n midnightXe: '191970',\n mRtcYam: 'f5fffa',\n mistyPse: 'ffe4e1',\n moccasR: 'ffe4b5',\n navajowEte: 'ffdead',\n navy: '80',\n Tdlace: 'fdf5e6',\n Tive: '808000',\n TivedBb: '6b8e23',\n Sange: 'ffa500',\n SangeYd: 'ff4500',\n ScEd: 'da70d6',\n pOegTMnPd: 'eee8aa',\n pOegYF: '98fb98',\n pOeQe: 'afeeee',\n pOeviTetYd: 'db7093',\n papayawEp: 'ffefd5',\n pHKpuff: 'ffdab9',\n peru: 'cd853f',\n pRk: 'ffc0cb',\n plum: 'dda0dd',\n powMrXe: 'b0e0e6',\n purpN: '800080',\n YbeccapurpN: '663399',\n Yd: 'ff0000',\n Psybrown: 'bc8f8f',\n PyOXe: '4169e1',\n saddNbPwn: '8b4513',\n sOmon: 'fa8072',\n sandybPwn: 'f4a460',\n sHgYF: '2e8b57',\n sHshell: 'fff5ee',\n siFna: 'a0522d',\n silver: 'c0c0c0',\n skyXe: '87ceeb',\n UXe: '6a5acd',\n UWay: '708090',\n UgYy: '708090',\n snow: 'fffafa',\n sprRggYF: 'ff7f',\n stAlXe: '4682b4',\n tan: 'd2b48c',\n teO: '8080',\n tEstN: 'd8bfd8',\n tomato: 'ff6347',\n Qe: '40e0d0',\n viTet: 'ee82ee',\n JHt: 'f5deb3',\n wEte: 'ffffff',\n wEtesmoke: 'f5f5f5',\n Lw: 'ffff00',\n LwgYF: '9acd32'\n};\nfunction unpack() {\n const unpacked = {};\n const keys = Object.keys(names$1);\n const tkeys = Object.keys(map$2);\n let i, j, k, ok, nk;\n for (i = 0; i < keys.length; i++) {\n ok = nk = keys[i];\n for (j = 0; j < tkeys.length; j++) {\n k = tkeys[j];\n nk = nk.replace(k, map$2[k]);\n }\n k = parseInt(names$1[ok], 16);\n unpacked[nk] = [k >> 16 & 0xFF, k >> 8 & 0xFF, k & 0xFF];\n }\n return unpacked;\n}\nlet names;\nfunction nameParse(str) {\n if (!names) {\n names = unpack();\n names.transparent = [0, 0, 0, 0];\n }\n const a = names[str.toLowerCase()];\n return a && {\n r: a[0],\n g: a[1],\n b: a[2],\n a: a.length === 4 ? a[3] : 255\n };\n}\nconst RGB_RE = /^rgba?\\(\\s*([-+.\\d]+)(%)?[\\s,]+([-+.e\\d]+)(%)?[\\s,]+([-+.e\\d]+)(%)?(?:[\\s,/]+([-+.e\\d]+)(%)?)?\\s*\\)$/;\nfunction rgbParse(str) {\n const m = RGB_RE.exec(str);\n let a = 255;\n let r, g, b;\n if (!m) {\n return;\n }\n if (m[7] !== r) {\n const v = +m[7];\n a = m[8] ? p2b(v) : lim(v * 255, 0, 255);\n }\n r = +m[1];\n g = +m[3];\n b = +m[5];\n r = 255 & (m[2] ? p2b(r) : lim(r, 0, 255));\n g = 255 & (m[4] ? p2b(g) : lim(g, 0, 255));\n b = 255 & (m[6] ? p2b(b) : lim(b, 0, 255));\n return {\n r: r,\n g: g,\n b: b,\n a: a\n };\n}\nfunction rgbString(v) {\n return v && (\n v.a < 255\n ? `rgba(${v.r}, ${v.g}, ${v.b}, ${b2n(v.a)})`\n : `rgb(${v.r}, ${v.g}, ${v.b})`\n );\n}\nconst to = v => v <= 0.0031308 ? v * 12.92 : Math.pow(v, 1.0 / 2.4) * 1.055 - 0.055;\nconst from = v => v <= 0.04045 ? v / 12.92 : Math.pow((v + 0.055) / 1.055, 2.4);\nfunction interpolate$1(rgb1, rgb2, t) {\n const r = from(b2n(rgb1.r));\n const g = from(b2n(rgb1.g));\n const b = from(b2n(rgb1.b));\n return {\n r: n2b(to(r + t * (from(b2n(rgb2.r)) - r))),\n g: n2b(to(g + t * (from(b2n(rgb2.g)) - g))),\n b: n2b(to(b + t * (from(b2n(rgb2.b)) - b))),\n a: rgb1.a + t * (rgb2.a - rgb1.a)\n };\n}\nfunction modHSL(v, i, ratio) {\n if (v) {\n let tmp = rgb2hsl(v);\n tmp[i] = Math.max(0, Math.min(tmp[i] + tmp[i] * ratio, i === 0 ? 360 : 1));\n tmp = hsl2rgb(tmp);\n v.r = tmp[0];\n v.g = tmp[1];\n v.b = tmp[2];\n }\n}\nfunction clone(v, proto) {\n return v ? Object.assign(proto || {}, v) : v;\n}\nfunction fromObject(input) {\n var v = {r: 0, g: 0, b: 0, a: 255};\n if (Array.isArray(input)) {\n if (input.length >= 3) {\n v = {r: input[0], g: input[1], b: input[2], a: 255};\n if (input.length > 3) {\n v.a = n2b(input[3]);\n }\n }\n } else {\n v = clone(input, {r: 0, g: 0, b: 0, a: 1});\n v.a = n2b(v.a);\n }\n return v;\n}\nfunction functionParse(str) {\n if (str.charAt(0) === 'r') {\n return rgbParse(str);\n }\n return hueParse(str);\n}\nclass Color {\n constructor(input) {\n if (input instanceof Color) {\n return input;\n }\n const type = typeof input;\n let v;\n if (type === 'object') {\n v = fromObject(input);\n } else if (type === 'string') {\n v = hexParse(input) || nameParse(input) || functionParse(input);\n }\n this._rgb = v;\n this._valid = !!v;\n }\n get valid() {\n return this._valid;\n }\n get rgb() {\n var v = clone(this._rgb);\n if (v) {\n v.a = b2n(v.a);\n }\n return v;\n }\n set rgb(obj) {\n this._rgb = fromObject(obj);\n }\n rgbString() {\n return this._valid ? rgbString(this._rgb) : undefined;\n }\n hexString() {\n return this._valid ? hexString(this._rgb) : undefined;\n }\n hslString() {\n return this._valid ? hslString(this._rgb) : undefined;\n }\n mix(color, weight) {\n if (color) {\n const c1 = this.rgb;\n const c2 = color.rgb;\n let w2;\n const p = weight === w2 ? 0.5 : weight;\n const w = 2 * p - 1;\n const a = c1.a - c2.a;\n const w1 = ((w * a === -1 ? w : (w + a) / (1 + w * a)) + 1) / 2.0;\n w2 = 1 - w1;\n c1.r = 0xFF & w1 * c1.r + w2 * c2.r + 0.5;\n c1.g = 0xFF & w1 * c1.g + w2 * c2.g + 0.5;\n c1.b = 0xFF & w1 * c1.b + w2 * c2.b + 0.5;\n c1.a = p * c1.a + (1 - p) * c2.a;\n this.rgb = c1;\n }\n return this;\n }\n interpolate(color, t) {\n if (color) {\n this._rgb = interpolate$1(this._rgb, color._rgb, t);\n }\n return this;\n }\n clone() {\n return new Color(this.rgb);\n }\n alpha(a) {\n this._rgb.a = n2b(a);\n return this;\n }\n clearer(ratio) {\n const rgb = this._rgb;\n rgb.a *= 1 - ratio;\n return this;\n }\n greyscale() {\n const rgb = this._rgb;\n const val = round(rgb.r * 0.3 + rgb.g * 0.59 + rgb.b * 0.11);\n rgb.r = rgb.g = rgb.b = val;\n return this;\n }\n opaquer(ratio) {\n const rgb = this._rgb;\n rgb.a *= 1 + ratio;\n return this;\n }\n negate() {\n const v = this._rgb;\n v.r = 255 - v.r;\n v.g = 255 - v.g;\n v.b = 255 - v.b;\n return this;\n }\n lighten(ratio) {\n modHSL(this._rgb, 2, ratio);\n return this;\n }\n darken(ratio) {\n modHSL(this._rgb, 2, -ratio);\n return this;\n }\n saturate(ratio) {\n modHSL(this._rgb, 1, ratio);\n return this;\n }\n desaturate(ratio) {\n modHSL(this._rgb, 1, -ratio);\n return this;\n }\n rotate(deg) {\n rotate(this._rgb, deg);\n return this;\n }\n}\n\nfunction isPatternOrGradient(value) {\n if (value && typeof value === 'object') {\n const type = value.toString();\n return type === '[object CanvasPattern]' || type === '[object CanvasGradient]';\n }\n return false;\n}\nfunction color(value) {\n return isPatternOrGradient(value) ? value : new Color(value);\n}\nfunction getHoverColor(value) {\n return isPatternOrGradient(value) ? value : new Color(value).saturate(0.5).darken(0.1).hexString();\n}\n\nconst numbers = [\n 'x',\n 'y',\n 'borderWidth',\n 'radius',\n 'tension'\n];\nconst colors = [\n 'color',\n 'borderColor',\n 'backgroundColor'\n];\nfunction applyAnimationsDefaults(defaults) {\n defaults.set('animation', {\n delay: undefined,\n duration: 1000,\n easing: 'easeOutQuart',\n fn: undefined,\n from: undefined,\n loop: undefined,\n to: undefined,\n type: undefined\n });\n defaults.describe('animation', {\n _fallback: false,\n _indexable: false,\n _scriptable: (name)=>name !== 'onProgress' && name !== 'onComplete' && name !== 'fn'\n });\n defaults.set('animations', {\n colors: {\n type: 'color',\n properties: colors\n },\n numbers: {\n type: 'number',\n properties: numbers\n }\n });\n defaults.describe('animations', {\n _fallback: 'animation'\n });\n defaults.set('transitions', {\n active: {\n animation: {\n duration: 400\n }\n },\n resize: {\n animation: {\n duration: 0\n }\n },\n show: {\n animations: {\n colors: {\n from: 'transparent'\n },\n visible: {\n type: 'boolean',\n duration: 0\n }\n }\n },\n hide: {\n animations: {\n colors: {\n to: 'transparent'\n },\n visible: {\n type: 'boolean',\n easing: 'linear',\n fn: (v)=>v | 0\n }\n }\n }\n });\n}\n\nfunction applyLayoutsDefaults(defaults) {\n defaults.set('layout', {\n autoPadding: true,\n padding: {\n top: 0,\n right: 0,\n bottom: 0,\n left: 0\n }\n });\n}\n\nconst intlCache = new Map();\nfunction getNumberFormat(locale, options) {\n options = options || {};\n const cacheKey = locale + JSON.stringify(options);\n let formatter = intlCache.get(cacheKey);\n if (!formatter) {\n formatter = new Intl.NumberFormat(locale, options);\n intlCache.set(cacheKey, formatter);\n }\n return formatter;\n}\nfunction formatNumber(num, locale, options) {\n return getNumberFormat(locale, options).format(num);\n}\n\nconst formatters = {\n values (value) {\n return isArray(value) ? value : '' + value;\n },\n numeric (tickValue, index, ticks) {\n if (tickValue === 0) {\n return '0';\n }\n const locale = this.chart.options.locale;\n let notation;\n let delta = tickValue;\n if (ticks.length > 1) {\n const maxTick = Math.max(Math.abs(ticks[0].value), Math.abs(ticks[ticks.length - 1].value));\n if (maxTick < 1e-4 || maxTick > 1e+15) {\n notation = 'scientific';\n }\n delta = calculateDelta(tickValue, ticks);\n }\n const logDelta = log10(Math.abs(delta));\n const numDecimal = Math.max(Math.min(-1 * Math.floor(logDelta), 20), 0);\n const options = {\n notation,\n minimumFractionDigits: numDecimal,\n maximumFractionDigits: numDecimal\n };\n Object.assign(options, this.options.ticks.format);\n return formatNumber(tickValue, locale, options);\n },\n logarithmic (tickValue, index, ticks) {\n if (tickValue === 0) {\n return '0';\n }\n const remain = ticks[index].significand || tickValue / Math.pow(10, Math.floor(log10(tickValue)));\n if ([\n 1,\n 2,\n 3,\n 5,\n 10,\n 15\n ].includes(remain) || index > 0.8 * ticks.length) {\n return formatters.numeric.call(this, tickValue, index, ticks);\n }\n return '';\n }\n};\nfunction calculateDelta(tickValue, ticks) {\n let delta = ticks.length > 3 ? ticks[2].value - ticks[1].value : ticks[1].value - ticks[0].value;\n if (Math.abs(delta) >= 1 && tickValue !== Math.floor(tickValue)) {\n delta = tickValue - Math.floor(tickValue);\n }\n return delta;\n}\n var Ticks = {\n formatters\n};\n\nfunction applyScaleDefaults(defaults) {\n defaults.set('scale', {\n display: true,\n offset: false,\n reverse: false,\n beginAtZero: false,\n bounds: 'ticks',\n grace: 0,\n grid: {\n display: true,\n lineWidth: 1,\n drawOnChartArea: true,\n drawTicks: true,\n tickLength: 8,\n tickWidth: (_ctx, options)=>options.lineWidth,\n tickColor: (_ctx, options)=>options.color,\n offset: false\n },\n border: {\n display: true,\n dash: [],\n dashOffset: 0.0,\n width: 1\n },\n title: {\n display: false,\n text: '',\n padding: {\n top: 4,\n bottom: 4\n }\n },\n ticks: {\n minRotation: 0,\n maxRotation: 50,\n mirror: false,\n textStrokeWidth: 0,\n textStrokeColor: '',\n padding: 3,\n display: true,\n autoSkip: true,\n autoSkipPadding: 3,\n labelOffset: 0,\n callback: Ticks.formatters.values,\n minor: {},\n major: {},\n align: 'center',\n crossAlign: 'near',\n showLabelBackdrop: false,\n backdropColor: 'rgba(255, 255, 255, 0.75)',\n backdropPadding: 2\n }\n });\n defaults.route('scale.ticks', 'color', '', 'color');\n defaults.route('scale.grid', 'color', '', 'borderColor');\n defaults.route('scale.border', 'color', '', 'borderColor');\n defaults.route('scale.title', 'color', '', 'color');\n defaults.describe('scale', {\n _fallback: false,\n _scriptable: (name)=>!name.startsWith('before') && !name.startsWith('after') && name !== 'callback' && name !== 'parser',\n _indexable: (name)=>name !== 'borderDash' && name !== 'tickBorderDash' && name !== 'dash'\n });\n defaults.describe('scales', {\n _fallback: 'scale'\n });\n defaults.describe('scale.ticks', {\n _scriptable: (name)=>name !== 'backdropPadding' && name !== 'callback',\n _indexable: (name)=>name !== 'backdropPadding'\n });\n}\n\nconst overrides = Object.create(null);\nconst descriptors = Object.create(null);\n function getScope$1(node, key) {\n if (!key) {\n return node;\n }\n const keys = key.split('.');\n for(let i = 0, n = keys.length; i < n; ++i){\n const k = keys[i];\n node = node[k] || (node[k] = Object.create(null));\n }\n return node;\n}\nfunction set(root, scope, values) {\n if (typeof scope === 'string') {\n return merge(getScope$1(root, scope), values);\n }\n return merge(getScope$1(root, ''), scope);\n}\n class Defaults {\n constructor(_descriptors, _appliers){\n this.animation = undefined;\n this.backgroundColor = 'rgba(0,0,0,0.1)';\n this.borderColor = 'rgba(0,0,0,0.1)';\n this.color = '#666';\n this.datasets = {};\n this.devicePixelRatio = (context)=>context.chart.platform.getDevicePixelRatio();\n this.elements = {};\n this.events = [\n 'mousemove',\n 'mouseout',\n 'click',\n 'touchstart',\n 'touchmove'\n ];\n this.font = {\n family: \"'Helvetica Neue', 'Helvetica', 'Arial', sans-serif\",\n size: 12,\n style: 'normal',\n lineHeight: 1.2,\n weight: null\n };\n this.hover = {};\n this.hoverBackgroundColor = (ctx, options)=>getHoverColor(options.backgroundColor);\n this.hoverBorderColor = (ctx, options)=>getHoverColor(options.borderColor);\n this.hoverColor = (ctx, options)=>getHoverColor(options.color);\n this.indexAxis = 'x';\n this.interaction = {\n mode: 'nearest',\n intersect: true,\n includeInvisible: false\n };\n this.maintainAspectRatio = true;\n this.onHover = null;\n this.onClick = null;\n this.parsing = true;\n this.plugins = {};\n this.responsive = true;\n this.scale = undefined;\n this.scales = {};\n this.showLine = true;\n this.drawActiveElementsOnTop = true;\n this.describe(_descriptors);\n this.apply(_appliers);\n }\n set(scope, values) {\n return set(this, scope, values);\n }\n get(scope) {\n return getScope$1(this, scope);\n }\n describe(scope, values) {\n return set(descriptors, scope, values);\n }\n override(scope, values) {\n return set(overrides, scope, values);\n }\n route(scope, name, targetScope, targetName) {\n const scopeObject = getScope$1(this, scope);\n const targetScopeObject = getScope$1(this, targetScope);\n const privateName = '_' + name;\n Object.defineProperties(scopeObject, {\n [privateName]: {\n value: scopeObject[name],\n writable: true\n },\n [name]: {\n enumerable: true,\n get () {\n const local = this[privateName];\n const target = targetScopeObject[targetName];\n if (isObject(local)) {\n return Object.assign({}, target, local);\n }\n return valueOrDefault(local, target);\n },\n set (value) {\n this[privateName] = value;\n }\n }\n });\n }\n apply(appliers) {\n appliers.forEach((apply)=>apply(this));\n }\n}\nvar defaults = /* #__PURE__ */ new Defaults({\n _scriptable: (name)=>!name.startsWith('on'),\n _indexable: (name)=>name !== 'events',\n hover: {\n _fallback: 'interaction'\n },\n interaction: {\n _scriptable: false,\n _indexable: false\n }\n}, [\n applyAnimationsDefaults,\n applyLayoutsDefaults,\n applyScaleDefaults\n]);\n\n/**\n * Note: typedefs are auto-exported, so use a made-up `dom` namespace where\n * necessary to avoid duplicates with `export * from './helpers`; see\n * https://github.com/microsoft/TypeScript/issues/46011\n * @typedef { import('../core/core.controller.js').default } dom.Chart\n * @typedef { import('../../types').ChartEvent } ChartEvent\n */ /**\n * @private\n */ function _isDomSupported() {\n return typeof window !== 'undefined' && typeof document !== 'undefined';\n}\n/**\n * @private\n */ function _getParentNode(domNode) {\n let parent = domNode.parentNode;\n if (parent && parent.toString() === '[object ShadowRoot]') {\n parent = parent.host;\n }\n return parent;\n}\n/**\n * convert max-width/max-height values that may be percentages into a number\n * @private\n */ function parseMaxStyle(styleValue, node, parentProperty) {\n let valueInPixels;\n if (typeof styleValue === 'string') {\n valueInPixels = parseInt(styleValue, 10);\n if (styleValue.indexOf('%') !== -1) {\n // percentage * size in dimension\n valueInPixels = valueInPixels / 100 * node.parentNode[parentProperty];\n }\n } else {\n valueInPixels = styleValue;\n }\n return valueInPixels;\n}\nconst getComputedStyle = (element)=>element.ownerDocument.defaultView.getComputedStyle(element, null);\nfunction getStyle(el, property) {\n return getComputedStyle(el).getPropertyValue(property);\n}\nconst positions = [\n 'top',\n 'right',\n 'bottom',\n 'left'\n];\nfunction getPositionedStyle(styles, style, suffix) {\n const result = {};\n suffix = suffix ? '-' + suffix : '';\n for(let i = 0; i < 4; i++){\n const pos = positions[i];\n result[pos] = parseFloat(styles[style + '-' + pos + suffix]) || 0;\n }\n result.width = result.left + result.right;\n result.height = result.top + result.bottom;\n return result;\n}\nconst useOffsetPos = (x, y, target)=>(x > 0 || y > 0) && (!target || !target.shadowRoot);\n/**\n * @param e\n * @param canvas\n * @returns Canvas position\n */ function getCanvasPosition(e, canvas) {\n const touches = e.touches;\n const source = touches && touches.length ? touches[0] : e;\n const { offsetX , offsetY } = source;\n let box = false;\n let x, y;\n if (useOffsetPos(offsetX, offsetY, e.target)) {\n x = offsetX;\n y = offsetY;\n } else {\n const rect = canvas.getBoundingClientRect();\n x = source.clientX - rect.left;\n y = source.clientY - rect.top;\n box = true;\n }\n return {\n x,\n y,\n box\n };\n}\n/**\n * Gets an event's x, y coordinates, relative to the chart area\n * @param event\n * @param chart\n * @returns x and y coordinates of the event\n */ function getRelativePosition(event, chart) {\n if ('native' in event) {\n return event;\n }\n const { canvas , currentDevicePixelRatio } = chart;\n const style = getComputedStyle(canvas);\n const borderBox = style.boxSizing === 'border-box';\n const paddings = getPositionedStyle(style, 'padding');\n const borders = getPositionedStyle(style, 'border', 'width');\n const { x , y , box } = getCanvasPosition(event, canvas);\n const xOffset = paddings.left + (box && borders.left);\n const yOffset = paddings.top + (box && borders.top);\n let { width , height } = chart;\n if (borderBox) {\n width -= paddings.width + borders.width;\n height -= paddings.height + borders.height;\n }\n return {\n x: Math.round((x - xOffset) / width * canvas.width / currentDevicePixelRatio),\n y: Math.round((y - yOffset) / height * canvas.height / currentDevicePixelRatio)\n };\n}\nfunction getContainerSize(canvas, width, height) {\n let maxWidth, maxHeight;\n if (width === undefined || height === undefined) {\n const container = _getParentNode(canvas);\n if (!container) {\n width = canvas.clientWidth;\n height = canvas.clientHeight;\n } else {\n const rect = container.getBoundingClientRect(); // this is the border box of the container\n const containerStyle = getComputedStyle(container);\n const containerBorder = getPositionedStyle(containerStyle, 'border', 'width');\n const containerPadding = getPositionedStyle(containerStyle, 'padding');\n width = rect.width - containerPadding.width - containerBorder.width;\n height = rect.height - containerPadding.height - containerBorder.height;\n maxWidth = parseMaxStyle(containerStyle.maxWidth, container, 'clientWidth');\n maxHeight = parseMaxStyle(containerStyle.maxHeight, container, 'clientHeight');\n }\n }\n return {\n width,\n height,\n maxWidth: maxWidth || INFINITY,\n maxHeight: maxHeight || INFINITY\n };\n}\nconst round1 = (v)=>Math.round(v * 10) / 10;\n// eslint-disable-next-line complexity\nfunction getMaximumSize(canvas, bbWidth, bbHeight, aspectRatio) {\n const style = getComputedStyle(canvas);\n const margins = getPositionedStyle(style, 'margin');\n const maxWidth = parseMaxStyle(style.maxWidth, canvas, 'clientWidth') || INFINITY;\n const maxHeight = parseMaxStyle(style.maxHeight, canvas, 'clientHeight') || INFINITY;\n const containerSize = getContainerSize(canvas, bbWidth, bbHeight);\n let { width , height } = containerSize;\n if (style.boxSizing === 'content-box') {\n const borders = getPositionedStyle(style, 'border', 'width');\n const paddings = getPositionedStyle(style, 'padding');\n width -= paddings.width + borders.width;\n height -= paddings.height + borders.height;\n }\n width = Math.max(0, width - margins.width);\n height = Math.max(0, aspectRatio ? width / aspectRatio : height - margins.height);\n width = round1(Math.min(width, maxWidth, containerSize.maxWidth));\n height = round1(Math.min(height, maxHeight, containerSize.maxHeight));\n if (width && !height) {\n // https://github.com/chartjs/Chart.js/issues/4659\n // If the canvas has width, but no height, default to aspectRatio of 2 (canvas default)\n height = round1(width / 2);\n }\n const maintainHeight = bbWidth !== undefined || bbHeight !== undefined;\n if (maintainHeight && aspectRatio && containerSize.height && height > containerSize.height) {\n height = containerSize.height;\n width = round1(Math.floor(height * aspectRatio));\n }\n return {\n width,\n height\n };\n}\n/**\n * @param chart\n * @param forceRatio\n * @param forceStyle\n * @returns True if the canvas context size or transformation has changed.\n */ function retinaScale(chart, forceRatio, forceStyle) {\n const pixelRatio = forceRatio || 1;\n const deviceHeight = Math.floor(chart.height * pixelRatio);\n const deviceWidth = Math.floor(chart.width * pixelRatio);\n chart.height = Math.floor(chart.height);\n chart.width = Math.floor(chart.width);\n const canvas = chart.canvas;\n // If no style has been set on the canvas, the render size is used as display size,\n // making the chart visually bigger, so let's enforce it to the \"correct\" values.\n // See https://github.com/chartjs/Chart.js/issues/3575\n if (canvas.style && (forceStyle || !canvas.style.height && !canvas.style.width)) {\n canvas.style.height = `${chart.height}px`;\n canvas.style.width = `${chart.width}px`;\n }\n if (chart.currentDevicePixelRatio !== pixelRatio || canvas.height !== deviceHeight || canvas.width !== deviceWidth) {\n chart.currentDevicePixelRatio = pixelRatio;\n canvas.height = deviceHeight;\n canvas.width = deviceWidth;\n chart.ctx.setTransform(pixelRatio, 0, 0, pixelRatio, 0, 0);\n return true;\n }\n return false;\n}\n/**\n * Detects support for options object argument in addEventListener.\n * https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener#Safely_detecting_option_support\n * @private\n */ const supportsEventListenerOptions = function() {\n let passiveSupported = false;\n try {\n const options = {\n get passive () {\n passiveSupported = true;\n return false;\n }\n };\n window.addEventListener('test', null, options);\n window.removeEventListener('test', null, options);\n } catch (e) {\n // continue regardless of error\n }\n return passiveSupported;\n}();\n/**\n * The \"used\" size is the final value of a dimension property after all calculations have\n * been performed. This method uses the computed style of `element` but returns undefined\n * if the computed style is not expressed in pixels. That can happen in some cases where\n * `element` has a size relative to its parent and this last one is not yet displayed,\n * for example because of `display: none` on a parent node.\n * @see https://developer.mozilla.org/en-US/docs/Web/CSS/used_value\n * @returns Size in pixels or undefined if unknown.\n */ function readUsedSize(element, property) {\n const value = getStyle(element, property);\n const matches = value && value.match(/^(\\d+)(\\.\\d+)?px$/);\n return matches ? +matches[1] : undefined;\n}\n\nfunction toFontString(font) {\n if (!font || isNullOrUndef(font.size) || isNullOrUndef(font.family)) {\n return null;\n }\n return (font.style ? font.style + ' ' : '') + (font.weight ? font.weight + ' ' : '') + font.size + 'px ' + font.family;\n}\n function _measureText(ctx, data, gc, longest, string) {\n let textWidth = data[string];\n if (!textWidth) {\n textWidth = data[string] = ctx.measureText(string).width;\n gc.push(string);\n }\n if (textWidth > longest) {\n longest = textWidth;\n }\n return longest;\n}\n function _longestText(ctx, font, arrayOfThings, cache) {\n cache = cache || {};\n let data = cache.data = cache.data || {};\n let gc = cache.garbageCollect = cache.garbageCollect || [];\n if (cache.font !== font) {\n data = cache.data = {};\n gc = cache.garbageCollect = [];\n cache.font = font;\n }\n ctx.save();\n ctx.font = font;\n let longest = 0;\n const ilen = arrayOfThings.length;\n let i, j, jlen, thing, nestedThing;\n for(i = 0; i < ilen; i++){\n thing = arrayOfThings[i];\n if (thing !== undefined && thing !== null && isArray(thing) !== true) {\n longest = _measureText(ctx, data, gc, longest, thing);\n } else if (isArray(thing)) {\n for(j = 0, jlen = thing.length; j < jlen; j++){\n nestedThing = thing[j];\n if (nestedThing !== undefined && nestedThing !== null && !isArray(nestedThing)) {\n longest = _measureText(ctx, data, gc, longest, nestedThing);\n }\n }\n }\n }\n ctx.restore();\n const gcLen = gc.length / 2;\n if (gcLen > arrayOfThings.length) {\n for(i = 0; i < gcLen; i++){\n delete data[gc[i]];\n }\n gc.splice(0, gcLen);\n }\n return longest;\n}\n function _alignPixel(chart, pixel, width) {\n const devicePixelRatio = chart.currentDevicePixelRatio;\n const halfWidth = width !== 0 ? Math.max(width / 2, 0.5) : 0;\n return Math.round((pixel - halfWidth) * devicePixelRatio) / devicePixelRatio + halfWidth;\n}\n function clearCanvas(canvas, ctx) {\n ctx = ctx || canvas.getContext('2d');\n ctx.save();\n ctx.resetTransform();\n ctx.clearRect(0, 0, canvas.width, canvas.height);\n ctx.restore();\n}\nfunction drawPoint(ctx, options, x, y) {\n drawPointLegend(ctx, options, x, y, null);\n}\nfunction drawPointLegend(ctx, options, x, y, w) {\n let type, xOffset, yOffset, size, cornerRadius, width, xOffsetW, yOffsetW;\n const style = options.pointStyle;\n const rotation = options.rotation;\n const radius = options.radius;\n let rad = (rotation || 0) * RAD_PER_DEG;\n if (style && typeof style === 'object') {\n type = style.toString();\n if (type === '[object HTMLImageElement]' || type === '[object HTMLCanvasElement]') {\n ctx.save();\n ctx.translate(x, y);\n ctx.rotate(rad);\n ctx.drawImage(style, -style.width / 2, -style.height / 2, style.width, style.height);\n ctx.restore();\n return;\n }\n }\n if (isNaN(radius) || radius <= 0) {\n return;\n }\n ctx.beginPath();\n switch(style){\n default:\n if (w) {\n ctx.ellipse(x, y, w / 2, radius, 0, 0, TAU);\n } else {\n ctx.arc(x, y, radius, 0, TAU);\n }\n ctx.closePath();\n break;\n case 'triangle':\n width = w ? w / 2 : radius;\n ctx.moveTo(x + Math.sin(rad) * width, y - Math.cos(rad) * radius);\n rad += TWO_THIRDS_PI;\n ctx.lineTo(x + Math.sin(rad) * width, y - Math.cos(rad) * radius);\n rad += TWO_THIRDS_PI;\n ctx.lineTo(x + Math.sin(rad) * width, y - Math.cos(rad) * radius);\n ctx.closePath();\n break;\n case 'rectRounded':\n cornerRadius = radius * 0.516;\n size = radius - cornerRadius;\n xOffset = Math.cos(rad + QUARTER_PI) * size;\n xOffsetW = Math.cos(rad + QUARTER_PI) * (w ? w / 2 - cornerRadius : size);\n yOffset = Math.sin(rad + QUARTER_PI) * size;\n yOffsetW = Math.sin(rad + QUARTER_PI) * (w ? w / 2 - cornerRadius : size);\n ctx.arc(x - xOffsetW, y - yOffset, cornerRadius, rad - PI, rad - HALF_PI);\n ctx.arc(x + yOffsetW, y - xOffset, cornerRadius, rad - HALF_PI, rad);\n ctx.arc(x + xOffsetW, y + yOffset, cornerRadius, rad, rad + HALF_PI);\n ctx.arc(x - yOffsetW, y + xOffset, cornerRadius, rad + HALF_PI, rad + PI);\n ctx.closePath();\n break;\n case 'rect':\n if (!rotation) {\n size = Math.SQRT1_2 * radius;\n width = w ? w / 2 : size;\n ctx.rect(x - width, y - size, 2 * width, 2 * size);\n break;\n }\n rad += QUARTER_PI;\n case 'rectRot':\n xOffsetW = Math.cos(rad) * (w ? w / 2 : radius);\n xOffset = Math.cos(rad) * radius;\n yOffset = Math.sin(rad) * radius;\n yOffsetW = Math.sin(rad) * (w ? w / 2 : radius);\n ctx.moveTo(x - xOffsetW, y - yOffset);\n ctx.lineTo(x + yOffsetW, y - xOffset);\n ctx.lineTo(x + xOffsetW, y + yOffset);\n ctx.lineTo(x - yOffsetW, y + xOffset);\n ctx.closePath();\n break;\n case 'crossRot':\n rad += QUARTER_PI;\n case 'cross':\n xOffsetW = Math.cos(rad) * (w ? w / 2 : radius);\n xOffset = Math.cos(rad) * radius;\n yOffset = Math.sin(rad) * radius;\n yOffsetW = Math.sin(rad) * (w ? w / 2 : radius);\n ctx.moveTo(x - xOffsetW, y - yOffset);\n ctx.lineTo(x + xOffsetW, y + yOffset);\n ctx.moveTo(x + yOffsetW, y - xOffset);\n ctx.lineTo(x - yOffsetW, y + xOffset);\n break;\n case 'star':\n xOffsetW = Math.cos(rad) * (w ? w / 2 : radius);\n xOffset = Math.cos(rad) * radius;\n yOffset = Math.sin(rad) * radius;\n yOffsetW = Math.sin(rad) * (w ? w / 2 : radius);\n ctx.moveTo(x - xOffsetW, y - yOffset);\n ctx.lineTo(x + xOffsetW, y + yOffset);\n ctx.moveTo(x + yOffsetW, y - xOffset);\n ctx.lineTo(x - yOffsetW, y + xOffset);\n rad += QUARTER_PI;\n xOffsetW = Math.cos(rad) * (w ? w / 2 : radius);\n xOffset = Math.cos(rad) * radius;\n yOffset = Math.sin(rad) * radius;\n yOffsetW = Math.sin(rad) * (w ? w / 2 : radius);\n ctx.moveTo(x - xOffsetW, y - yOffset);\n ctx.lineTo(x + xOffsetW, y + yOffset);\n ctx.moveTo(x + yOffsetW, y - xOffset);\n ctx.lineTo(x - yOffsetW, y + xOffset);\n break;\n case 'line':\n xOffset = w ? w / 2 : Math.cos(rad) * radius;\n yOffset = Math.sin(rad) * radius;\n ctx.moveTo(x - xOffset, y - yOffset);\n ctx.lineTo(x + xOffset, y + yOffset);\n break;\n case 'dash':\n ctx.moveTo(x, y);\n ctx.lineTo(x + Math.cos(rad) * (w ? w / 2 : radius), y + Math.sin(rad) * radius);\n break;\n case false:\n ctx.closePath();\n break;\n }\n ctx.fill();\n if (options.borderWidth > 0) {\n ctx.stroke();\n }\n}\n function _isPointInArea(point, area, margin) {\n margin = margin || 0.5;\n return !area || point && point.x > area.left - margin && point.x < area.right + margin && point.y > area.top - margin && point.y < area.bottom + margin;\n}\nfunction clipArea(ctx, area) {\n ctx.save();\n ctx.beginPath();\n ctx.rect(area.left, area.top, area.right - area.left, area.bottom - area.top);\n ctx.clip();\n}\nfunction unclipArea(ctx) {\n ctx.restore();\n}\n function _steppedLineTo(ctx, previous, target, flip, mode) {\n if (!previous) {\n return ctx.lineTo(target.x, target.y);\n }\n if (mode === 'middle') {\n const midpoint = (previous.x + target.x) / 2.0;\n ctx.lineTo(midpoint, previous.y);\n ctx.lineTo(midpoint, target.y);\n } else if (mode === 'after' !== !!flip) {\n ctx.lineTo(previous.x, target.y);\n } else {\n ctx.lineTo(target.x, previous.y);\n }\n ctx.lineTo(target.x, target.y);\n}\n function _bezierCurveTo(ctx, previous, target, flip) {\n if (!previous) {\n return ctx.lineTo(target.x, target.y);\n }\n ctx.bezierCurveTo(flip ? previous.cp1x : previous.cp2x, flip ? previous.cp1y : previous.cp2y, flip ? target.cp2x : target.cp1x, flip ? target.cp2y : target.cp1y, target.x, target.y);\n}\n function renderText(ctx, text, x, y, font, opts = {}) {\n const lines = isArray(text) ? text : [\n text\n ];\n const stroke = opts.strokeWidth > 0 && opts.strokeColor !== '';\n let i, line;\n ctx.save();\n ctx.font = font.string;\n setRenderOpts(ctx, opts);\n for(i = 0; i < lines.length; ++i){\n line = lines[i];\n if (opts.backdrop) {\n drawBackdrop(ctx, opts.backdrop);\n }\n if (stroke) {\n if (opts.strokeColor) {\n ctx.strokeStyle = opts.strokeColor;\n }\n if (!isNullOrUndef(opts.strokeWidth)) {\n ctx.lineWidth = opts.strokeWidth;\n }\n ctx.strokeText(line, x, y, opts.maxWidth);\n }\n ctx.fillText(line, x, y, opts.maxWidth);\n decorateText(ctx, x, y, line, opts);\n y += font.lineHeight;\n }\n ctx.restore();\n}\nfunction setRenderOpts(ctx, opts) {\n if (opts.translation) {\n ctx.translate(opts.translation[0], opts.translation[1]);\n }\n if (!isNullOrUndef(opts.rotation)) {\n ctx.rotate(opts.rotation);\n }\n if (opts.color) {\n ctx.fillStyle = opts.color;\n }\n if (opts.textAlign) {\n ctx.textAlign = opts.textAlign;\n }\n if (opts.textBaseline) {\n ctx.textBaseline = opts.textBaseline;\n }\n}\nfunction decorateText(ctx, x, y, line, opts) {\n if (opts.strikethrough || opts.underline) {\n const metrics = ctx.measureText(line);\n const left = x - metrics.actualBoundingBoxLeft;\n const right = x + metrics.actualBoundingBoxRight;\n const top = y - metrics.actualBoundingBoxAscent;\n const bottom = y + metrics.actualBoundingBoxDescent;\n const yDecoration = opts.strikethrough ? (top + bottom) / 2 : bottom;\n ctx.strokeStyle = ctx.fillStyle;\n ctx.beginPath();\n ctx.lineWidth = opts.decorationWidth || 2;\n ctx.moveTo(left, yDecoration);\n ctx.lineTo(right, yDecoration);\n ctx.stroke();\n }\n}\nfunction drawBackdrop(ctx, opts) {\n const oldColor = ctx.fillStyle;\n ctx.fillStyle = opts.color;\n ctx.fillRect(opts.left, opts.top, opts.width, opts.height);\n ctx.fillStyle = oldColor;\n}\n function addRoundedRectPath(ctx, rect) {\n const { x , y , w , h , radius } = rect;\n ctx.arc(x + radius.topLeft, y + radius.topLeft, radius.topLeft, -HALF_PI, PI, true);\n ctx.lineTo(x, y + h - radius.bottomLeft);\n ctx.arc(x + radius.bottomLeft, y + h - radius.bottomLeft, radius.bottomLeft, PI, HALF_PI, true);\n ctx.lineTo(x + w - radius.bottomRight, y + h);\n ctx.arc(x + w - radius.bottomRight, y + h - radius.bottomRight, radius.bottomRight, HALF_PI, 0, true);\n ctx.lineTo(x + w, y + radius.topRight);\n ctx.arc(x + w - radius.topRight, y + radius.topRight, radius.topRight, 0, -HALF_PI, true);\n ctx.lineTo(x + radius.topLeft, y);\n}\n\nfunction _createResolver(scopes, prefixes = [\n ''\n], rootScopes = scopes, fallback, getTarget = ()=>scopes[0]) {\n if (!defined(fallback)) {\n fallback = _resolve('_fallback', scopes);\n }\n const cache = {\n [Symbol.toStringTag]: 'Object',\n _cacheable: true,\n _scopes: scopes,\n _rootScopes: rootScopes,\n _fallback: fallback,\n _getTarget: getTarget,\n override: (scope)=>_createResolver([\n scope,\n ...scopes\n ], prefixes, rootScopes, fallback)\n };\n return new Proxy(cache, {\n deleteProperty (target, prop) {\n delete target[prop];\n delete target._keys;\n delete scopes[0][prop];\n return true;\n },\n get (target, prop) {\n return _cached(target, prop, ()=>_resolveWithPrefixes(prop, prefixes, scopes, target));\n },\n getOwnPropertyDescriptor (target, prop) {\n return Reflect.getOwnPropertyDescriptor(target._scopes[0], prop);\n },\n getPrototypeOf () {\n return Reflect.getPrototypeOf(scopes[0]);\n },\n has (target, prop) {\n return getKeysFromAllScopes(target).includes(prop);\n },\n ownKeys (target) {\n return getKeysFromAllScopes(target);\n },\n set (target, prop, value) {\n const storage = target._storage || (target._storage = getTarget());\n target[prop] = storage[prop] = value;\n delete target._keys;\n return true;\n }\n });\n}\n function _attachContext(proxy, context, subProxy, descriptorDefaults) {\n const cache = {\n _cacheable: false,\n _proxy: proxy,\n _context: context,\n _subProxy: subProxy,\n _stack: new Set(),\n _descriptors: _descriptors(proxy, descriptorDefaults),\n setContext: (ctx)=>_attachContext(proxy, ctx, subProxy, descriptorDefaults),\n override: (scope)=>_attachContext(proxy.override(scope), context, subProxy, descriptorDefaults)\n };\n return new Proxy(cache, {\n deleteProperty (target, prop) {\n delete target[prop];\n delete proxy[prop];\n return true;\n },\n get (target, prop, receiver) {\n return _cached(target, prop, ()=>_resolveWithContext(target, prop, receiver));\n },\n getOwnPropertyDescriptor (target, prop) {\n return target._descriptors.allKeys ? Reflect.has(proxy, prop) ? {\n enumerable: true,\n configurable: true\n } : undefined : Reflect.getOwnPropertyDescriptor(proxy, prop);\n },\n getPrototypeOf () {\n return Reflect.getPrototypeOf(proxy);\n },\n has (target, prop) {\n return Reflect.has(proxy, prop);\n },\n ownKeys () {\n return Reflect.ownKeys(proxy);\n },\n set (target, prop, value) {\n proxy[prop] = value;\n delete target[prop];\n return true;\n }\n });\n}\n function _descriptors(proxy, defaults = {\n scriptable: true,\n indexable: true\n}) {\n const { _scriptable =defaults.scriptable , _indexable =defaults.indexable , _allKeys =defaults.allKeys } = proxy;\n return {\n allKeys: _allKeys,\n scriptable: _scriptable,\n indexable: _indexable,\n isScriptable: isFunction(_scriptable) ? _scriptable : ()=>_scriptable,\n isIndexable: isFunction(_indexable) ? _indexable : ()=>_indexable\n };\n}\nconst readKey = (prefix, name)=>prefix ? prefix + _capitalize(name) : name;\nconst needsSubResolver = (prop, value)=>isObject(value) && prop !== 'adapters' && (Object.getPrototypeOf(value) === null || value.constructor === Object);\nfunction _cached(target, prop, resolve) {\n if (Object.prototype.hasOwnProperty.call(target, prop)) {\n return target[prop];\n }\n const value = resolve();\n target[prop] = value;\n return value;\n}\nfunction _resolveWithContext(target, prop, receiver) {\n const { _proxy , _context , _subProxy , _descriptors: descriptors } = target;\n let value = _proxy[prop];\n if (isFunction(value) && descriptors.isScriptable(prop)) {\n value = _resolveScriptable(prop, value, target, receiver);\n }\n if (isArray(value) && value.length) {\n value = _resolveArray(prop, value, target, descriptors.isIndexable);\n }\n if (needsSubResolver(prop, value)) {\n value = _attachContext(value, _context, _subProxy && _subProxy[prop], descriptors);\n }\n return value;\n}\nfunction _resolveScriptable(prop, value, target, receiver) {\n const { _proxy , _context , _subProxy , _stack } = target;\n if (_stack.has(prop)) {\n throw new Error('Recursion detected: ' + Array.from(_stack).join('->') + '->' + prop);\n }\n _stack.add(prop);\n value = value(_context, _subProxy || receiver);\n _stack.delete(prop);\n if (needsSubResolver(prop, value)) {\n value = createSubResolver(_proxy._scopes, _proxy, prop, value);\n }\n return value;\n}\nfunction _resolveArray(prop, value, target, isIndexable) {\n const { _proxy , _context , _subProxy , _descriptors: descriptors } = target;\n if (defined(_context.index) && isIndexable(prop)) {\n value = value[_context.index % value.length];\n } else if (isObject(value[0])) {\n const arr = value;\n const scopes = _proxy._scopes.filter((s)=>s !== arr);\n value = [];\n for (const item of arr){\n const resolver = createSubResolver(scopes, _proxy, prop, item);\n value.push(_attachContext(resolver, _context, _subProxy && _subProxy[prop], descriptors));\n }\n }\n return value;\n}\nfunction resolveFallback(fallback, prop, value) {\n return isFunction(fallback) ? fallback(prop, value) : fallback;\n}\nconst getScope = (key, parent)=>key === true ? parent : typeof key === 'string' ? resolveObjectKey(parent, key) : undefined;\nfunction addScopes(set, parentScopes, key, parentFallback, value) {\n for (const parent of parentScopes){\n const scope = getScope(key, parent);\n if (scope) {\n set.add(scope);\n const fallback = resolveFallback(scope._fallback, key, value);\n if (defined(fallback) && fallback !== key && fallback !== parentFallback) {\n return fallback;\n }\n } else if (scope === false && defined(parentFallback) && key !== parentFallback) {\n return null;\n }\n }\n return false;\n}\nfunction createSubResolver(parentScopes, resolver, prop, value) {\n const rootScopes = resolver._rootScopes;\n const fallback = resolveFallback(resolver._fallback, prop, value);\n const allScopes = [\n ...parentScopes,\n ...rootScopes\n ];\n const set = new Set();\n set.add(value);\n let key = addScopesFromKey(set, allScopes, prop, fallback || prop, value);\n if (key === null) {\n return false;\n }\n if (defined(fallback) && fallback !== prop) {\n key = addScopesFromKey(set, allScopes, fallback, key, value);\n if (key === null) {\n return false;\n }\n }\n return _createResolver(Array.from(set), [\n ''\n ], rootScopes, fallback, ()=>subGetTarget(resolver, prop, value));\n}\nfunction addScopesFromKey(set, allScopes, key, fallback, item) {\n while(key){\n key = addScopes(set, allScopes, key, fallback, item);\n }\n return key;\n}\nfunction subGetTarget(resolver, prop, value) {\n const parent = resolver._getTarget();\n if (!(prop in parent)) {\n parent[prop] = {};\n }\n const target = parent[prop];\n if (isArray(target) && isObject(value)) {\n return value;\n }\n return target || {};\n}\nfunction _resolveWithPrefixes(prop, prefixes, scopes, proxy) {\n let value;\n for (const prefix of prefixes){\n value = _resolve(readKey(prefix, prop), scopes);\n if (defined(value)) {\n return needsSubResolver(prop, value) ? createSubResolver(scopes, proxy, prop, value) : value;\n }\n }\n}\nfunction _resolve(key, scopes) {\n for (const scope of scopes){\n if (!scope) {\n continue;\n }\n const value = scope[key];\n if (defined(value)) {\n return value;\n }\n }\n}\nfunction getKeysFromAllScopes(target) {\n let keys = target._keys;\n if (!keys) {\n keys = target._keys = resolveKeysFromAllScopes(target._scopes);\n }\n return keys;\n}\nfunction resolveKeysFromAllScopes(scopes) {\n const set = new Set();\n for (const scope of scopes){\n for (const key of Object.keys(scope).filter((k)=>!k.startsWith('_'))){\n set.add(key);\n }\n }\n return Array.from(set);\n}\nfunction _parseObjectDataRadialScale(meta, data, start, count) {\n const { iScale } = meta;\n const { key ='r' } = this._parsing;\n const parsed = new Array(count);\n let i, ilen, index, item;\n for(i = 0, ilen = count; i < ilen; ++i){\n index = i + start;\n item = data[index];\n parsed[i] = {\n r: iScale.parse(resolveObjectKey(item, key), index)\n };\n }\n return parsed;\n}\n\nconst EPSILON = Number.EPSILON || 1e-14;\nconst getPoint = (points, i)=>i < points.length && !points[i].skip && points[i];\nconst getValueAxis = (indexAxis)=>indexAxis === 'x' ? 'y' : 'x';\nfunction splineCurve(firstPoint, middlePoint, afterPoint, t) {\n // Props to Rob Spencer at scaled innovation for his post on splining between points\n // http://scaledinnovation.com/analytics/splines/aboutSplines.html\n // This function must also respect \"skipped\" points\n const previous = firstPoint.skip ? middlePoint : firstPoint;\n const current = middlePoint;\n const next = afterPoint.skip ? middlePoint : afterPoint;\n const d01 = distanceBetweenPoints(current, previous);\n const d12 = distanceBetweenPoints(next, current);\n let s01 = d01 / (d01 + d12);\n let s12 = d12 / (d01 + d12);\n // If all points are the same, s01 & s02 will be inf\n s01 = isNaN(s01) ? 0 : s01;\n s12 = isNaN(s12) ? 0 : s12;\n const fa = t * s01; // scaling factor for triangle Ta\n const fb = t * s12;\n return {\n previous: {\n x: current.x - fa * (next.x - previous.x),\n y: current.y - fa * (next.y - previous.y)\n },\n next: {\n x: current.x + fb * (next.x - previous.x),\n y: current.y + fb * (next.y - previous.y)\n }\n };\n}\n/**\n * Adjust tangents to ensure monotonic properties\n */ function monotoneAdjust(points, deltaK, mK) {\n const pointsLen = points.length;\n let alphaK, betaK, tauK, squaredMagnitude, pointCurrent;\n let pointAfter = getPoint(points, 0);\n for(let i = 0; i < pointsLen - 1; ++i){\n pointCurrent = pointAfter;\n pointAfter = getPoint(points, i + 1);\n if (!pointCurrent || !pointAfter) {\n continue;\n }\n if (almostEquals(deltaK[i], 0, EPSILON)) {\n mK[i] = mK[i + 1] = 0;\n continue;\n }\n alphaK = mK[i] / deltaK[i];\n betaK = mK[i + 1] / deltaK[i];\n squaredMagnitude = Math.pow(alphaK, 2) + Math.pow(betaK, 2);\n if (squaredMagnitude <= 9) {\n continue;\n }\n tauK = 3 / Math.sqrt(squaredMagnitude);\n mK[i] = alphaK * tauK * deltaK[i];\n mK[i + 1] = betaK * tauK * deltaK[i];\n }\n}\nfunction monotoneCompute(points, mK, indexAxis = 'x') {\n const valueAxis = getValueAxis(indexAxis);\n const pointsLen = points.length;\n let delta, pointBefore, pointCurrent;\n let pointAfter = getPoint(points, 0);\n for(let i = 0; i < pointsLen; ++i){\n pointBefore = pointCurrent;\n pointCurrent = pointAfter;\n pointAfter = getPoint(points, i + 1);\n if (!pointCurrent) {\n continue;\n }\n const iPixel = pointCurrent[indexAxis];\n const vPixel = pointCurrent[valueAxis];\n if (pointBefore) {\n delta = (iPixel - pointBefore[indexAxis]) / 3;\n pointCurrent[`cp1${indexAxis}`] = iPixel - delta;\n pointCurrent[`cp1${valueAxis}`] = vPixel - delta * mK[i];\n }\n if (pointAfter) {\n delta = (pointAfter[indexAxis] - iPixel) / 3;\n pointCurrent[`cp2${indexAxis}`] = iPixel + delta;\n pointCurrent[`cp2${valueAxis}`] = vPixel + delta * mK[i];\n }\n }\n}\n/**\n * This function calculates Bézier control points in a similar way than |splineCurve|,\n * but preserves monotonicity of the provided data and ensures no local extremums are added\n * between the dataset discrete points due to the interpolation.\n * See : https://en.wikipedia.org/wiki/Monotone_cubic_interpolation\n */ function splineCurveMonotone(points, indexAxis = 'x') {\n const valueAxis = getValueAxis(indexAxis);\n const pointsLen = points.length;\n const deltaK = Array(pointsLen).fill(0);\n const mK = Array(pointsLen);\n // Calculate slopes (deltaK) and initialize tangents (mK)\n let i, pointBefore, pointCurrent;\n let pointAfter = getPoint(points, 0);\n for(i = 0; i < pointsLen; ++i){\n pointBefore = pointCurrent;\n pointCurrent = pointAfter;\n pointAfter = getPoint(points, i + 1);\n if (!pointCurrent) {\n continue;\n }\n if (pointAfter) {\n const slopeDelta = pointAfter[indexAxis] - pointCurrent[indexAxis];\n // In the case of two points that appear at the same x pixel, slopeDeltaX is 0\n deltaK[i] = slopeDelta !== 0 ? (pointAfter[valueAxis] - pointCurrent[valueAxis]) / slopeDelta : 0;\n }\n mK[i] = !pointBefore ? deltaK[i] : !pointAfter ? deltaK[i - 1] : sign(deltaK[i - 1]) !== sign(deltaK[i]) ? 0 : (deltaK[i - 1] + deltaK[i]) / 2;\n }\n monotoneAdjust(points, deltaK, mK);\n monotoneCompute(points, mK, indexAxis);\n}\nfunction capControlPoint(pt, min, max) {\n return Math.max(Math.min(pt, max), min);\n}\nfunction capBezierPoints(points, area) {\n let i, ilen, point, inArea, inAreaPrev;\n let inAreaNext = _isPointInArea(points[0], area);\n for(i = 0, ilen = points.length; i < ilen; ++i){\n inAreaPrev = inArea;\n inArea = inAreaNext;\n inAreaNext = i < ilen - 1 && _isPointInArea(points[i + 1], area);\n if (!inArea) {\n continue;\n }\n point = points[i];\n if (inAreaPrev) {\n point.cp1x = capControlPoint(point.cp1x, area.left, area.right);\n point.cp1y = capControlPoint(point.cp1y, area.top, area.bottom);\n }\n if (inAreaNext) {\n point.cp2x = capControlPoint(point.cp2x, area.left, area.right);\n point.cp2y = capControlPoint(point.cp2y, area.top, area.bottom);\n }\n }\n}\n/**\n * @private\n */ function _updateBezierControlPoints(points, options, area, loop, indexAxis) {\n let i, ilen, point, controlPoints;\n // Only consider points that are drawn in case the spanGaps option is used\n if (options.spanGaps) {\n points = points.filter((pt)=>!pt.skip);\n }\n if (options.cubicInterpolationMode === 'monotone') {\n splineCurveMonotone(points, indexAxis);\n } else {\n let prev = loop ? points[points.length - 1] : points[0];\n for(i = 0, ilen = points.length; i < ilen; ++i){\n point = points[i];\n controlPoints = splineCurve(prev, point, points[Math.min(i + 1, ilen - (loop ? 0 : 1)) % ilen], options.tension);\n point.cp1x = controlPoints.previous.x;\n point.cp1y = controlPoints.previous.y;\n point.cp2x = controlPoints.next.x;\n point.cp2y = controlPoints.next.y;\n prev = point;\n }\n }\n if (options.capBezierPoints) {\n capBezierPoints(points, area);\n }\n}\n\nconst atEdge = (t)=>t === 0 || t === 1;\nconst elasticIn = (t, s, p)=>-(Math.pow(2, 10 * (t -= 1)) * Math.sin((t - s) * TAU / p));\nconst elasticOut = (t, s, p)=>Math.pow(2, -10 * t) * Math.sin((t - s) * TAU / p) + 1;\n/**\n * Easing functions adapted from Robert Penner's easing equations.\n * @namespace Chart.helpers.easing.effects\n * @see http://www.robertpenner.com/easing/\n */ const effects = {\n linear: (t)=>t,\n easeInQuad: (t)=>t * t,\n easeOutQuad: (t)=>-t * (t - 2),\n easeInOutQuad: (t)=>(t /= 0.5) < 1 ? 0.5 * t * t : -0.5 * (--t * (t - 2) - 1),\n easeInCubic: (t)=>t * t * t,\n easeOutCubic: (t)=>(t -= 1) * t * t + 1,\n easeInOutCubic: (t)=>(t /= 0.5) < 1 ? 0.5 * t * t * t : 0.5 * ((t -= 2) * t * t + 2),\n easeInQuart: (t)=>t * t * t * t,\n easeOutQuart: (t)=>-((t -= 1) * t * t * t - 1),\n easeInOutQuart: (t)=>(t /= 0.5) < 1 ? 0.5 * t * t * t * t : -0.5 * ((t -= 2) * t * t * t - 2),\n easeInQuint: (t)=>t * t * t * t * t,\n easeOutQuint: (t)=>(t -= 1) * t * t * t * t + 1,\n easeInOutQuint: (t)=>(t /= 0.5) < 1 ? 0.5 * t * t * t * t * t : 0.5 * ((t -= 2) * t * t * t * t + 2),\n easeInSine: (t)=>-Math.cos(t * HALF_PI) + 1,\n easeOutSine: (t)=>Math.sin(t * HALF_PI),\n easeInOutSine: (t)=>-0.5 * (Math.cos(PI * t) - 1),\n easeInExpo: (t)=>t === 0 ? 0 : Math.pow(2, 10 * (t - 1)),\n easeOutExpo: (t)=>t === 1 ? 1 : -Math.pow(2, -10 * t) + 1,\n easeInOutExpo: (t)=>atEdge(t) ? t : t < 0.5 ? 0.5 * Math.pow(2, 10 * (t * 2 - 1)) : 0.5 * (-Math.pow(2, -10 * (t * 2 - 1)) + 2),\n easeInCirc: (t)=>t >= 1 ? t : -(Math.sqrt(1 - t * t) - 1),\n easeOutCirc: (t)=>Math.sqrt(1 - (t -= 1) * t),\n easeInOutCirc: (t)=>(t /= 0.5) < 1 ? -0.5 * (Math.sqrt(1 - t * t) - 1) : 0.5 * (Math.sqrt(1 - (t -= 2) * t) + 1),\n easeInElastic: (t)=>atEdge(t) ? t : elasticIn(t, 0.075, 0.3),\n easeOutElastic: (t)=>atEdge(t) ? t : elasticOut(t, 0.075, 0.3),\n easeInOutElastic (t) {\n const s = 0.1125;\n const p = 0.45;\n return atEdge(t) ? t : t < 0.5 ? 0.5 * elasticIn(t * 2, s, p) : 0.5 + 0.5 * elasticOut(t * 2 - 1, s, p);\n },\n easeInBack (t) {\n const s = 1.70158;\n return t * t * ((s + 1) * t - s);\n },\n easeOutBack (t) {\n const s = 1.70158;\n return (t -= 1) * t * ((s + 1) * t + s) + 1;\n },\n easeInOutBack (t) {\n let s = 1.70158;\n if ((t /= 0.5) < 1) {\n return 0.5 * (t * t * (((s *= 1.525) + 1) * t - s));\n }\n return 0.5 * ((t -= 2) * t * (((s *= 1.525) + 1) * t + s) + 2);\n },\n easeInBounce: (t)=>1 - effects.easeOutBounce(1 - t),\n easeOutBounce (t) {\n const m = 7.5625;\n const d = 2.75;\n if (t < 1 / d) {\n return m * t * t;\n }\n if (t < 2 / d) {\n return m * (t -= 1.5 / d) * t + 0.75;\n }\n if (t < 2.5 / d) {\n return m * (t -= 2.25 / d) * t + 0.9375;\n }\n return m * (t -= 2.625 / d) * t + 0.984375;\n },\n easeInOutBounce: (t)=>t < 0.5 ? effects.easeInBounce(t * 2) * 0.5 : effects.easeOutBounce(t * 2 - 1) * 0.5 + 0.5\n};\n\n/**\n * @private\n */ function _pointInLine(p1, p2, t, mode) {\n return {\n x: p1.x + t * (p2.x - p1.x),\n y: p1.y + t * (p2.y - p1.y)\n };\n}\n/**\n * @private\n */ function _steppedInterpolation(p1, p2, t, mode) {\n return {\n x: p1.x + t * (p2.x - p1.x),\n y: mode === 'middle' ? t < 0.5 ? p1.y : p2.y : mode === 'after' ? t < 1 ? p1.y : p2.y : t > 0 ? p2.y : p1.y\n };\n}\n/**\n * @private\n */ function _bezierInterpolation(p1, p2, t, mode) {\n const cp1 = {\n x: p1.cp2x,\n y: p1.cp2y\n };\n const cp2 = {\n x: p2.cp1x,\n y: p2.cp1y\n };\n const a = _pointInLine(p1, cp1, t);\n const b = _pointInLine(cp1, cp2, t);\n const c = _pointInLine(cp2, p2, t);\n const d = _pointInLine(a, b, t);\n const e = _pointInLine(b, c, t);\n return _pointInLine(d, e, t);\n}\n\nconst LINE_HEIGHT = /^(normal|(\\d+(?:\\.\\d+)?)(px|em|%)?)$/;\nconst FONT_STYLE = /^(normal|italic|initial|inherit|unset|(oblique( -?[0-9]?[0-9]deg)?))$/;\n/**\n * @alias Chart.helpers.options\n * @namespace\n */ /**\n * Converts the given line height `value` in pixels for a specific font `size`.\n * @param value - The lineHeight to parse (eg. 1.6, '14px', '75%', '1.6em').\n * @param size - The font size (in pixels) used to resolve relative `value`.\n * @returns The effective line height in pixels (size * 1.2 if value is invalid).\n * @see https://developer.mozilla.org/en-US/docs/Web/CSS/line-height\n * @since 2.7.0\n */ function toLineHeight(value, size) {\n const matches = ('' + value).match(LINE_HEIGHT);\n if (!matches || matches[1] === 'normal') {\n return size * 1.2;\n }\n value = +matches[2];\n switch(matches[3]){\n case 'px':\n return value;\n case '%':\n value /= 100;\n break;\n }\n return size * value;\n}\nconst numberOrZero = (v)=>+v || 0;\nfunction _readValueToProps(value, props) {\n const ret = {};\n const objProps = isObject(props);\n const keys = objProps ? Object.keys(props) : props;\n const read = isObject(value) ? objProps ? (prop)=>valueOrDefault(value[prop], value[props[prop]]) : (prop)=>value[prop] : ()=>value;\n for (const prop of keys){\n ret[prop] = numberOrZero(read(prop));\n }\n return ret;\n}\n/**\n * Converts the given value into a TRBL object.\n * @param value - If a number, set the value to all TRBL component,\n * else, if an object, use defined properties and sets undefined ones to 0.\n * x / y are shorthands for same value for left/right and top/bottom.\n * @returns The padding values (top, right, bottom, left)\n * @since 3.0.0\n */ function toTRBL(value) {\n return _readValueToProps(value, {\n top: 'y',\n right: 'x',\n bottom: 'y',\n left: 'x'\n });\n}\n/**\n * Converts the given value into a TRBL corners object (similar with css border-radius).\n * @param value - If a number, set the value to all TRBL corner components,\n * else, if an object, use defined properties and sets undefined ones to 0.\n * @returns The TRBL corner values (topLeft, topRight, bottomLeft, bottomRight)\n * @since 3.0.0\n */ function toTRBLCorners(value) {\n return _readValueToProps(value, [\n 'topLeft',\n 'topRight',\n 'bottomLeft',\n 'bottomRight'\n ]);\n}\n/**\n * Converts the given value into a padding object with pre-computed width/height.\n * @param value - If a number, set the value to all TRBL component,\n * else, if an object, use defined properties and sets undefined ones to 0.\n * x / y are shorthands for same value for left/right and top/bottom.\n * @returns The padding values (top, right, bottom, left, width, height)\n * @since 2.7.0\n */ function toPadding(value) {\n const obj = toTRBL(value);\n obj.width = obj.left + obj.right;\n obj.height = obj.top + obj.bottom;\n return obj;\n}\n/**\n * Parses font options and returns the font object.\n * @param options - A object that contains font options to be parsed.\n * @param fallback - A object that contains fallback font options.\n * @return The font object.\n * @private\n */ function toFont(options, fallback) {\n options = options || {};\n fallback = fallback || defaults.font;\n let size = valueOrDefault(options.size, fallback.size);\n if (typeof size === 'string') {\n size = parseInt(size, 10);\n }\n let style = valueOrDefault(options.style, fallback.style);\n if (style && !('' + style).match(FONT_STYLE)) {\n console.warn('Invalid font style specified: \"' + style + '\"');\n style = undefined;\n }\n const font = {\n family: valueOrDefault(options.family, fallback.family),\n lineHeight: toLineHeight(valueOrDefault(options.lineHeight, fallback.lineHeight), size),\n size,\n style,\n weight: valueOrDefault(options.weight, fallback.weight),\n string: ''\n };\n font.string = toFontString(font);\n return font;\n}\n/**\n * Evaluates the given `inputs` sequentially and returns the first defined value.\n * @param inputs - An array of values, falling back to the last value.\n * @param context - If defined and the current value is a function, the value\n * is called with `context` as first argument and the result becomes the new input.\n * @param index - If defined and the current value is an array, the value\n * at `index` become the new input.\n * @param info - object to return information about resolution in\n * @param info.cacheable - Will be set to `false` if option is not cacheable.\n * @since 2.7.0\n */ function resolve(inputs, context, index, info) {\n let cacheable = true;\n let i, ilen, value;\n for(i = 0, ilen = inputs.length; i < ilen; ++i){\n value = inputs[i];\n if (value === undefined) {\n continue;\n }\n if (context !== undefined && typeof value === 'function') {\n value = value(context);\n cacheable = false;\n }\n if (index !== undefined && isArray(value)) {\n value = value[index % value.length];\n cacheable = false;\n }\n if (value !== undefined) {\n if (info && !cacheable) {\n info.cacheable = false;\n }\n return value;\n }\n }\n}\n/**\n * @param minmax\n * @param grace\n * @param beginAtZero\n * @private\n */ function _addGrace(minmax, grace, beginAtZero) {\n const { min , max } = minmax;\n const change = toDimension(grace, (max - min) / 2);\n const keepZero = (value, add)=>beginAtZero && value === 0 ? 0 : value + add;\n return {\n min: keepZero(min, -Math.abs(change)),\n max: keepZero(max, change)\n };\n}\nfunction createContext(parentContext, context) {\n return Object.assign(Object.create(parentContext), context);\n}\n\nconst getRightToLeftAdapter = function(rectX, width) {\n return {\n x (x) {\n return rectX + rectX + width - x;\n },\n setWidth (w) {\n width = w;\n },\n textAlign (align) {\n if (align === 'center') {\n return align;\n }\n return align === 'right' ? 'left' : 'right';\n },\n xPlus (x, value) {\n return x - value;\n },\n leftForLtr (x, itemWidth) {\n return x - itemWidth;\n }\n };\n};\nconst getLeftToRightAdapter = function() {\n return {\n x (x) {\n return x;\n },\n setWidth (w) {},\n textAlign (align) {\n return align;\n },\n xPlus (x, value) {\n return x + value;\n },\n leftForLtr (x, _itemWidth) {\n return x;\n }\n };\n};\nfunction getRtlAdapter(rtl, rectX, width) {\n return rtl ? getRightToLeftAdapter(rectX, width) : getLeftToRightAdapter();\n}\nfunction overrideTextDirection(ctx, direction) {\n let style, original;\n if (direction === 'ltr' || direction === 'rtl') {\n style = ctx.canvas.style;\n original = [\n style.getPropertyValue('direction'),\n style.getPropertyPriority('direction')\n ];\n style.setProperty('direction', direction, 'important');\n ctx.prevTextDirection = original;\n }\n}\nfunction restoreTextDirection(ctx, original) {\n if (original !== undefined) {\n delete ctx.prevTextDirection;\n ctx.canvas.style.setProperty('direction', original[0], original[1]);\n }\n}\n\nfunction propertyFn(property) {\n if (property === 'angle') {\n return {\n between: _angleBetween,\n compare: _angleDiff,\n normalize: _normalizeAngle\n };\n }\n return {\n between: _isBetween,\n compare: (a, b)=>a - b,\n normalize: (x)=>x\n };\n}\nfunction normalizeSegment({ start , end , count , loop , style }) {\n return {\n start: start % count,\n end: end % count,\n loop: loop && (end - start + 1) % count === 0,\n style\n };\n}\nfunction getSegment(segment, points, bounds) {\n const { property , start: startBound , end: endBound } = bounds;\n const { between , normalize } = propertyFn(property);\n const count = points.length;\n let { start , end , loop } = segment;\n let i, ilen;\n if (loop) {\n start += count;\n end += count;\n for(i = 0, ilen = count; i < ilen; ++i){\n if (!between(normalize(points[start % count][property]), startBound, endBound)) {\n break;\n }\n start--;\n end--;\n }\n start %= count;\n end %= count;\n }\n if (end < start) {\n end += count;\n }\n return {\n start,\n end,\n loop,\n style: segment.style\n };\n}\n function _boundSegment(segment, points, bounds) {\n if (!bounds) {\n return [\n segment\n ];\n }\n const { property , start: startBound , end: endBound } = bounds;\n const count = points.length;\n const { compare , between , normalize } = propertyFn(property);\n const { start , end , loop , style } = getSegment(segment, points, bounds);\n const result = [];\n let inside = false;\n let subStart = null;\n let value, point, prevValue;\n const startIsBefore = ()=>between(startBound, prevValue, value) && compare(startBound, prevValue) !== 0;\n const endIsBefore = ()=>compare(endBound, value) === 0 || between(endBound, prevValue, value);\n const shouldStart = ()=>inside || startIsBefore();\n const shouldStop = ()=>!inside || endIsBefore();\n for(let i = start, prev = start; i <= end; ++i){\n point = points[i % count];\n if (point.skip) {\n continue;\n }\n value = normalize(point[property]);\n if (value === prevValue) {\n continue;\n }\n inside = between(value, startBound, endBound);\n if (subStart === null && shouldStart()) {\n subStart = compare(value, startBound) === 0 ? i : prev;\n }\n if (subStart !== null && shouldStop()) {\n result.push(normalizeSegment({\n start: subStart,\n end: i,\n loop,\n count,\n style\n }));\n subStart = null;\n }\n prev = i;\n prevValue = value;\n }\n if (subStart !== null) {\n result.push(normalizeSegment({\n start: subStart,\n end,\n loop,\n count,\n style\n }));\n }\n return result;\n}\n function _boundSegments(line, bounds) {\n const result = [];\n const segments = line.segments;\n for(let i = 0; i < segments.length; i++){\n const sub = _boundSegment(segments[i], line.points, bounds);\n if (sub.length) {\n result.push(...sub);\n }\n }\n return result;\n}\n function findStartAndEnd(points, count, loop, spanGaps) {\n let start = 0;\n let end = count - 1;\n if (loop && !spanGaps) {\n while(start < count && !points[start].skip){\n start++;\n }\n }\n while(start < count && points[start].skip){\n start++;\n }\n start %= count;\n if (loop) {\n end += start;\n }\n while(end > start && points[end % count].skip){\n end--;\n }\n end %= count;\n return {\n start,\n end\n };\n}\n function solidSegments(points, start, max, loop) {\n const count = points.length;\n const result = [];\n let last = start;\n let prev = points[start];\n let end;\n for(end = start + 1; end <= max; ++end){\n const cur = points[end % count];\n if (cur.skip || cur.stop) {\n if (!prev.skip) {\n loop = false;\n result.push({\n start: start % count,\n end: (end - 1) % count,\n loop\n });\n start = last = cur.stop ? end : null;\n }\n } else {\n last = end;\n if (prev.skip) {\n start = end;\n }\n }\n prev = cur;\n }\n if (last !== null) {\n result.push({\n start: start % count,\n end: last % count,\n loop\n });\n }\n return result;\n}\n function _computeSegments(line, segmentOptions) {\n const points = line.points;\n const spanGaps = line.options.spanGaps;\n const count = points.length;\n if (!count) {\n return [];\n }\n const loop = !!line._loop;\n const { start , end } = findStartAndEnd(points, count, loop, spanGaps);\n if (spanGaps === true) {\n return splitByStyles(line, [\n {\n start,\n end,\n loop\n }\n ], points, segmentOptions);\n }\n const max = end < start ? end + count : end;\n const completeLoop = !!line._fullLoop && start === 0 && end === count - 1;\n return splitByStyles(line, solidSegments(points, start, max, completeLoop), points, segmentOptions);\n}\n function splitByStyles(line, segments, points, segmentOptions) {\n if (!segmentOptions || !segmentOptions.setContext || !points) {\n return segments;\n }\n return doSplitByStyles(line, segments, points, segmentOptions);\n}\n function doSplitByStyles(line, segments, points, segmentOptions) {\n const chartContext = line._chart.getContext();\n const baseStyle = readStyle(line.options);\n const { _datasetIndex: datasetIndex , options: { spanGaps } } = line;\n const count = points.length;\n const result = [];\n let prevStyle = baseStyle;\n let start = segments[0].start;\n let i = start;\n function addStyle(s, e, l, st) {\n const dir = spanGaps ? -1 : 1;\n if (s === e) {\n return;\n }\n s += count;\n while(points[s % count].skip){\n s -= dir;\n }\n while(points[e % count].skip){\n e += dir;\n }\n if (s % count !== e % count) {\n result.push({\n start: s % count,\n end: e % count,\n loop: l,\n style: st\n });\n prevStyle = st;\n start = e % count;\n }\n }\n for (const segment of segments){\n start = spanGaps ? start : segment.start;\n let prev = points[start % count];\n let style;\n for(i = start + 1; i <= segment.end; i++){\n const pt = points[i % count];\n style = readStyle(segmentOptions.setContext(createContext(chartContext, {\n type: 'segment',\n p0: prev,\n p1: pt,\n p0DataIndex: (i - 1) % count,\n p1DataIndex: i % count,\n datasetIndex\n })));\n if (styleChanged(style, prevStyle)) {\n addStyle(start, i - 1, segment.loop, prevStyle);\n }\n prev = pt;\n prevStyle = style;\n }\n if (start < i - 1) {\n addStyle(start, i - 1, segment.loop, prevStyle);\n }\n }\n return result;\n}\nfunction readStyle(options) {\n return {\n backgroundColor: options.backgroundColor,\n borderCapStyle: options.borderCapStyle,\n borderDash: options.borderDash,\n borderDashOffset: options.borderDashOffset,\n borderJoinStyle: options.borderJoinStyle,\n borderWidth: options.borderWidth,\n borderColor: options.borderColor\n };\n}\nfunction styleChanged(style, prevStyle) {\n return prevStyle && JSON.stringify(style) !== JSON.stringify(prevStyle);\n}\n\nvar helpers = /*#__PURE__*/Object.freeze({\n__proto__: null,\neasingEffects: effects,\nisPatternOrGradient: isPatternOrGradient,\ncolor: color,\ngetHoverColor: getHoverColor,\nnoop: noop,\nuid: uid,\nisNullOrUndef: isNullOrUndef,\nisArray: isArray,\nisObject: isObject,\nisFinite: isNumberFinite,\nfiniteOrDefault: finiteOrDefault,\nvalueOrDefault: valueOrDefault,\ntoPercentage: toPercentage,\ntoDimension: toDimension,\ncallback: callback,\neach: each,\n_elementsEqual: _elementsEqual,\nclone: clone$1,\n_merger: _merger,\nmerge: merge,\nmergeIf: mergeIf,\n_mergerIf: _mergerIf,\n_deprecated: _deprecated,\n_splitKey: _splitKey,\nresolveObjectKey: resolveObjectKey,\n_capitalize: _capitalize,\ndefined: defined,\nisFunction: isFunction,\nsetsEqual: setsEqual,\n_isClickEvent: _isClickEvent,\ntoFontString: toFontString,\n_measureText: _measureText,\n_longestText: _longestText,\n_alignPixel: _alignPixel,\nclearCanvas: clearCanvas,\ndrawPoint: drawPoint,\ndrawPointLegend: drawPointLegend,\n_isPointInArea: _isPointInArea,\nclipArea: clipArea,\nunclipArea: unclipArea,\n_steppedLineTo: _steppedLineTo,\n_bezierCurveTo: _bezierCurveTo,\nrenderText: renderText,\naddRoundedRectPath: addRoundedRectPath,\n_lookup: _lookup,\n_lookupByKey: _lookupByKey,\n_rlookupByKey: _rlookupByKey,\n_filterBetween: _filterBetween,\nlistenArrayEvents: listenArrayEvents,\nunlistenArrayEvents: unlistenArrayEvents,\n_arrayUnique: _arrayUnique,\n_createResolver: _createResolver,\n_attachContext: _attachContext,\n_descriptors: _descriptors,\n_parseObjectDataRadialScale: _parseObjectDataRadialScale,\nsplineCurve: splineCurve,\nsplineCurveMonotone: splineCurveMonotone,\n_updateBezierControlPoints: _updateBezierControlPoints,\n_isDomSupported: _isDomSupported,\n_getParentNode: _getParentNode,\ngetStyle: getStyle,\ngetRelativePosition: getRelativePosition,\ngetMaximumSize: getMaximumSize,\nretinaScale: retinaScale,\nsupportsEventListenerOptions: supportsEventListenerOptions,\nreadUsedSize: readUsedSize,\nfontString: fontString,\nrequestAnimFrame: requestAnimFrame,\nthrottled: throttled,\ndebounce: debounce,\n_toLeftRightCenter: _toLeftRightCenter,\n_alignStartEnd: _alignStartEnd,\n_textX: _textX,\n_getStartAndCountOfVisiblePoints: _getStartAndCountOfVisiblePoints,\n_scaleRangesChanged: _scaleRangesChanged,\n_pointInLine: _pointInLine,\n_steppedInterpolation: _steppedInterpolation,\n_bezierInterpolation: _bezierInterpolation,\nformatNumber: formatNumber,\ntoLineHeight: toLineHeight,\n_readValueToProps: _readValueToProps,\ntoTRBL: toTRBL,\ntoTRBLCorners: toTRBLCorners,\ntoPadding: toPadding,\ntoFont: toFont,\nresolve: resolve,\n_addGrace: _addGrace,\ncreateContext: createContext,\nPI: PI,\nTAU: TAU,\nPITAU: PITAU,\nINFINITY: INFINITY,\nRAD_PER_DEG: RAD_PER_DEG,\nHALF_PI: HALF_PI,\nQUARTER_PI: QUARTER_PI,\nTWO_THIRDS_PI: TWO_THIRDS_PI,\nlog10: log10,\nsign: sign,\nalmostEquals: almostEquals,\nniceNum: niceNum,\n_factorize: _factorize,\nisNumber: isNumber,\nalmostWhole: almostWhole,\n_setMinAndMaxByKey: _setMinAndMaxByKey,\ntoRadians: toRadians,\ntoDegrees: toDegrees,\n_decimalPlaces: _decimalPlaces,\ngetAngleFromPoint: getAngleFromPoint,\ndistanceBetweenPoints: distanceBetweenPoints,\n_angleDiff: _angleDiff,\n_normalizeAngle: _normalizeAngle,\n_angleBetween: _angleBetween,\n_limitValue: _limitValue,\n_int16Range: _int16Range,\n_isBetween: _isBetween,\ngetRtlAdapter: getRtlAdapter,\noverrideTextDirection: overrideTextDirection,\nrestoreTextDirection: restoreTextDirection,\n_boundSegment: _boundSegment,\n_boundSegments: _boundSegments,\n_computeSegments: _computeSegments\n});\n\nfunction binarySearch(metaset, axis, value, intersect) {\n const { controller , data , _sorted } = metaset;\n const iScale = controller._cachedMeta.iScale;\n if (iScale && axis === iScale.axis && axis !== 'r' && _sorted && data.length) {\n const lookupMethod = iScale._reversePixels ? _rlookupByKey : _lookupByKey;\n if (!intersect) {\n return lookupMethod(data, axis, value);\n } else if (controller._sharedOptions) {\n const el = data[0];\n const range = typeof el.getRange === 'function' && el.getRange(axis);\n if (range) {\n const start = lookupMethod(data, axis, value - range);\n const end = lookupMethod(data, axis, value + range);\n return {\n lo: start.lo,\n hi: end.hi\n };\n }\n }\n }\n return {\n lo: 0,\n hi: data.length - 1\n };\n}\n function evaluateInteractionItems(chart, axis, position, handler, intersect) {\n const metasets = chart.getSortedVisibleDatasetMetas();\n const value = position[axis];\n for(let i = 0, ilen = metasets.length; i < ilen; ++i){\n const { index , data } = metasets[i];\n const { lo , hi } = binarySearch(metasets[i], axis, value, intersect);\n for(let j = lo; j <= hi; ++j){\n const element = data[j];\n if (!element.skip) {\n handler(element, index, j);\n }\n }\n }\n}\n function getDistanceMetricForAxis(axis) {\n const useX = axis.indexOf('x') !== -1;\n const useY = axis.indexOf('y') !== -1;\n return function(pt1, pt2) {\n const deltaX = useX ? Math.abs(pt1.x - pt2.x) : 0;\n const deltaY = useY ? Math.abs(pt1.y - pt2.y) : 0;\n return Math.sqrt(Math.pow(deltaX, 2) + Math.pow(deltaY, 2));\n };\n}\n function getIntersectItems(chart, position, axis, useFinalPosition, includeInvisible) {\n const items = [];\n if (!includeInvisible && !chart.isPointInArea(position)) {\n return items;\n }\n const evaluationFunc = function(element, datasetIndex, index) {\n if (!includeInvisible && !_isPointInArea(element, chart.chartArea, 0)) {\n return;\n }\n if (element.inRange(position.x, position.y, useFinalPosition)) {\n items.push({\n element,\n datasetIndex,\n index\n });\n }\n };\n evaluateInteractionItems(chart, axis, position, evaluationFunc, true);\n return items;\n}\n function getNearestRadialItems(chart, position, axis, useFinalPosition) {\n let items = [];\n function evaluationFunc(element, datasetIndex, index) {\n const { startAngle , endAngle } = element.getProps([\n 'startAngle',\n 'endAngle'\n ], useFinalPosition);\n const { angle } = getAngleFromPoint(element, {\n x: position.x,\n y: position.y\n });\n if (_angleBetween(angle, startAngle, endAngle)) {\n items.push({\n element,\n datasetIndex,\n index\n });\n }\n }\n evaluateInteractionItems(chart, axis, position, evaluationFunc);\n return items;\n}\n function getNearestCartesianItems(chart, position, axis, intersect, useFinalPosition, includeInvisible) {\n let items = [];\n const distanceMetric = getDistanceMetricForAxis(axis);\n let minDistance = Number.POSITIVE_INFINITY;\n function evaluationFunc(element, datasetIndex, index) {\n const inRange = element.inRange(position.x, position.y, useFinalPosition);\n if (intersect && !inRange) {\n return;\n }\n const center = element.getCenterPoint(useFinalPosition);\n const pointInArea = !!includeInvisible || chart.isPointInArea(center);\n if (!pointInArea && !inRange) {\n return;\n }\n const distance = distanceMetric(position, center);\n if (distance < minDistance) {\n items = [\n {\n element,\n datasetIndex,\n index\n }\n ];\n minDistance = distance;\n } else if (distance === minDistance) {\n items.push({\n element,\n datasetIndex,\n index\n });\n }\n }\n evaluateInteractionItems(chart, axis, position, evaluationFunc);\n return items;\n}\n function getNearestItems(chart, position, axis, intersect, useFinalPosition, includeInvisible) {\n if (!includeInvisible && !chart.isPointInArea(position)) {\n return [];\n }\n return axis === 'r' && !intersect ? getNearestRadialItems(chart, position, axis, useFinalPosition) : getNearestCartesianItems(chart, position, axis, intersect, useFinalPosition, includeInvisible);\n}\n function getAxisItems(chart, position, axis, intersect, useFinalPosition) {\n const items = [];\n const rangeMethod = axis === 'x' ? 'inXRange' : 'inYRange';\n let intersectsItem = false;\n evaluateInteractionItems(chart, axis, position, (element, datasetIndex, index)=>{\n if (element[rangeMethod](position[axis], useFinalPosition)) {\n items.push({\n element,\n datasetIndex,\n index\n });\n intersectsItem = intersectsItem || element.inRange(position.x, position.y, useFinalPosition);\n }\n });\n if (intersect && !intersectsItem) {\n return [];\n }\n return items;\n}\n var Interaction = {\n evaluateInteractionItems,\n modes: {\n index (chart, e, options, useFinalPosition) {\n const position = getRelativePosition(e, chart);\n const axis = options.axis || 'x';\n const includeInvisible = options.includeInvisible || false;\n const items = options.intersect ? getIntersectItems(chart, position, axis, useFinalPosition, includeInvisible) : getNearestItems(chart, position, axis, false, useFinalPosition, includeInvisible);\n const elements = [];\n if (!items.length) {\n return [];\n }\n chart.getSortedVisibleDatasetMetas().forEach((meta)=>{\n const index = items[0].index;\n const element = meta.data[index];\n if (element && !element.skip) {\n elements.push({\n element,\n datasetIndex: meta.index,\n index\n });\n }\n });\n return elements;\n },\n dataset (chart, e, options, useFinalPosition) {\n const position = getRelativePosition(e, chart);\n const axis = options.axis || 'xy';\n const includeInvisible = options.includeInvisible || false;\n let items = options.intersect ? getIntersectItems(chart, position, axis, useFinalPosition, includeInvisible) : getNearestItems(chart, position, axis, false, useFinalPosition, includeInvisible);\n if (items.length > 0) {\n const datasetIndex = items[0].datasetIndex;\n const data = chart.getDatasetMeta(datasetIndex).data;\n items = [];\n for(let i = 0; i < data.length; ++i){\n items.push({\n element: data[i],\n datasetIndex,\n index: i\n });\n }\n }\n return items;\n },\n point (chart, e, options, useFinalPosition) {\n const position = getRelativePosition(e, chart);\n const axis = options.axis || 'xy';\n const includeInvisible = options.includeInvisible || false;\n return getIntersectItems(chart, position, axis, useFinalPosition, includeInvisible);\n },\n nearest (chart, e, options, useFinalPosition) {\n const position = getRelativePosition(e, chart);\n const axis = options.axis || 'xy';\n const includeInvisible = options.includeInvisible || false;\n return getNearestItems(chart, position, axis, options.intersect, useFinalPosition, includeInvisible);\n },\n x (chart, e, options, useFinalPosition) {\n const position = getRelativePosition(e, chart);\n return getAxisItems(chart, position, 'x', options.intersect, useFinalPosition);\n },\n y (chart, e, options, useFinalPosition) {\n const position = getRelativePosition(e, chart);\n return getAxisItems(chart, position, 'y', options.intersect, useFinalPosition);\n }\n }\n};\n\nconst STATIC_POSITIONS = [\n 'left',\n 'top',\n 'right',\n 'bottom'\n];\nfunction filterByPosition(array, position) {\n return array.filter((v)=>v.pos === position);\n}\nfunction filterDynamicPositionByAxis(array, axis) {\n return array.filter((v)=>STATIC_POSITIONS.indexOf(v.pos) === -1 && v.box.axis === axis);\n}\nfunction sortByWeight(array, reverse) {\n return array.sort((a, b)=>{\n const v0 = reverse ? b : a;\n const v1 = reverse ? a : b;\n return v0.weight === v1.weight ? v0.index - v1.index : v0.weight - v1.weight;\n });\n}\nfunction wrapBoxes(boxes) {\n const layoutBoxes = [];\n let i, ilen, box, pos, stack, stackWeight;\n for(i = 0, ilen = (boxes || []).length; i < ilen; ++i){\n box = boxes[i];\n ({ position: pos , options: { stack , stackWeight =1 } } = box);\n layoutBoxes.push({\n index: i,\n box,\n pos,\n horizontal: box.isHorizontal(),\n weight: box.weight,\n stack: stack && pos + stack,\n stackWeight\n });\n }\n return layoutBoxes;\n}\nfunction buildStacks(layouts) {\n const stacks = {};\n for (const wrap of layouts){\n const { stack , pos , stackWeight } = wrap;\n if (!stack || !STATIC_POSITIONS.includes(pos)) {\n continue;\n }\n const _stack = stacks[stack] || (stacks[stack] = {\n count: 0,\n placed: 0,\n weight: 0,\n size: 0\n });\n _stack.count++;\n _stack.weight += stackWeight;\n }\n return stacks;\n}\n function setLayoutDims(layouts, params) {\n const stacks = buildStacks(layouts);\n const { vBoxMaxWidth , hBoxMaxHeight } = params;\n let i, ilen, layout;\n for(i = 0, ilen = layouts.length; i < ilen; ++i){\n layout = layouts[i];\n const { fullSize } = layout.box;\n const stack = stacks[layout.stack];\n const factor = stack && layout.stackWeight / stack.weight;\n if (layout.horizontal) {\n layout.width = factor ? factor * vBoxMaxWidth : fullSize && params.availableWidth;\n layout.height = hBoxMaxHeight;\n } else {\n layout.width = vBoxMaxWidth;\n layout.height = factor ? factor * hBoxMaxHeight : fullSize && params.availableHeight;\n }\n }\n return stacks;\n}\nfunction buildLayoutBoxes(boxes) {\n const layoutBoxes = wrapBoxes(boxes);\n const fullSize = sortByWeight(layoutBoxes.filter((wrap)=>wrap.box.fullSize), true);\n const left = sortByWeight(filterByPosition(layoutBoxes, 'left'), true);\n const right = sortByWeight(filterByPosition(layoutBoxes, 'right'));\n const top = sortByWeight(filterByPosition(layoutBoxes, 'top'), true);\n const bottom = sortByWeight(filterByPosition(layoutBoxes, 'bottom'));\n const centerHorizontal = filterDynamicPositionByAxis(layoutBoxes, 'x');\n const centerVertical = filterDynamicPositionByAxis(layoutBoxes, 'y');\n return {\n fullSize,\n leftAndTop: left.concat(top),\n rightAndBottom: right.concat(centerVertical).concat(bottom).concat(centerHorizontal),\n chartArea: filterByPosition(layoutBoxes, 'chartArea'),\n vertical: left.concat(right).concat(centerVertical),\n horizontal: top.concat(bottom).concat(centerHorizontal)\n };\n}\nfunction getCombinedMax(maxPadding, chartArea, a, b) {\n return Math.max(maxPadding[a], chartArea[a]) + Math.max(maxPadding[b], chartArea[b]);\n}\nfunction updateMaxPadding(maxPadding, boxPadding) {\n maxPadding.top = Math.max(maxPadding.top, boxPadding.top);\n maxPadding.left = Math.max(maxPadding.left, boxPadding.left);\n maxPadding.bottom = Math.max(maxPadding.bottom, boxPadding.bottom);\n maxPadding.right = Math.max(maxPadding.right, boxPadding.right);\n}\nfunction updateDims(chartArea, params, layout, stacks) {\n const { pos , box } = layout;\n const maxPadding = chartArea.maxPadding;\n if (!isObject(pos)) {\n if (layout.size) {\n chartArea[pos] -= layout.size;\n }\n const stack = stacks[layout.stack] || {\n size: 0,\n count: 1\n };\n stack.size = Math.max(stack.size, layout.horizontal ? box.height : box.width);\n layout.size = stack.size / stack.count;\n chartArea[pos] += layout.size;\n }\n if (box.getPadding) {\n updateMaxPadding(maxPadding, box.getPadding());\n }\n const newWidth = Math.max(0, params.outerWidth - getCombinedMax(maxPadding, chartArea, 'left', 'right'));\n const newHeight = Math.max(0, params.outerHeight - getCombinedMax(maxPadding, chartArea, 'top', 'bottom'));\n const widthChanged = newWidth !== chartArea.w;\n const heightChanged = newHeight !== chartArea.h;\n chartArea.w = newWidth;\n chartArea.h = newHeight;\n return layout.horizontal ? {\n same: widthChanged,\n other: heightChanged\n } : {\n same: heightChanged,\n other: widthChanged\n };\n}\nfunction handleMaxPadding(chartArea) {\n const maxPadding = chartArea.maxPadding;\n function updatePos(pos) {\n const change = Math.max(maxPadding[pos] - chartArea[pos], 0);\n chartArea[pos] += change;\n return change;\n }\n chartArea.y += updatePos('top');\n chartArea.x += updatePos('left');\n updatePos('right');\n updatePos('bottom');\n}\nfunction getMargins(horizontal, chartArea) {\n const maxPadding = chartArea.maxPadding;\n function marginForPositions(positions) {\n const margin = {\n left: 0,\n top: 0,\n right: 0,\n bottom: 0\n };\n positions.forEach((pos)=>{\n margin[pos] = Math.max(chartArea[pos], maxPadding[pos]);\n });\n return margin;\n }\n return horizontal ? marginForPositions([\n 'left',\n 'right'\n ]) : marginForPositions([\n 'top',\n 'bottom'\n ]);\n}\nfunction fitBoxes(boxes, chartArea, params, stacks) {\n const refitBoxes = [];\n let i, ilen, layout, box, refit, changed;\n for(i = 0, ilen = boxes.length, refit = 0; i < ilen; ++i){\n layout = boxes[i];\n box = layout.box;\n box.update(layout.width || chartArea.w, layout.height || chartArea.h, getMargins(layout.horizontal, chartArea));\n const { same , other } = updateDims(chartArea, params, layout, stacks);\n refit |= same && refitBoxes.length;\n changed = changed || other;\n if (!box.fullSize) {\n refitBoxes.push(layout);\n }\n }\n return refit && fitBoxes(refitBoxes, chartArea, params, stacks) || changed;\n}\nfunction setBoxDims(box, left, top, width, height) {\n box.top = top;\n box.left = left;\n box.right = left + width;\n box.bottom = top + height;\n box.width = width;\n box.height = height;\n}\nfunction placeBoxes(boxes, chartArea, params, stacks) {\n const userPadding = params.padding;\n let { x , y } = chartArea;\n for (const layout of boxes){\n const box = layout.box;\n const stack = stacks[layout.stack] || {\n count: 1,\n placed: 0,\n weight: 1\n };\n const weight = layout.stackWeight / stack.weight || 1;\n if (layout.horizontal) {\n const width = chartArea.w * weight;\n const height = stack.size || box.height;\n if (defined(stack.start)) {\n y = stack.start;\n }\n if (box.fullSize) {\n setBoxDims(box, userPadding.left, y, params.outerWidth - userPadding.right - userPadding.left, height);\n } else {\n setBoxDims(box, chartArea.left + stack.placed, y, width, height);\n }\n stack.start = y;\n stack.placed += width;\n y = box.bottom;\n } else {\n const height1 = chartArea.h * weight;\n const width1 = stack.size || box.width;\n if (defined(stack.start)) {\n x = stack.start;\n }\n if (box.fullSize) {\n setBoxDims(box, x, userPadding.top, width1, params.outerHeight - userPadding.bottom - userPadding.top);\n } else {\n setBoxDims(box, x, chartArea.top + stack.placed, width1, height1);\n }\n stack.start = x;\n stack.placed += height1;\n x = box.right;\n }\n }\n chartArea.x = x;\n chartArea.y = y;\n}\nvar layouts = {\n addBox (chart, item) {\n if (!chart.boxes) {\n chart.boxes = [];\n }\n item.fullSize = item.fullSize || false;\n item.position = item.position || 'top';\n item.weight = item.weight || 0;\n item._layers = item._layers || function() {\n return [\n {\n z: 0,\n draw (chartArea) {\n item.draw(chartArea);\n }\n }\n ];\n };\n chart.boxes.push(item);\n },\n removeBox (chart, layoutItem) {\n const index = chart.boxes ? chart.boxes.indexOf(layoutItem) : -1;\n if (index !== -1) {\n chart.boxes.splice(index, 1);\n }\n },\n configure (chart, item, options) {\n item.fullSize = options.fullSize;\n item.position = options.position;\n item.weight = options.weight;\n },\n update (chart, width, height, minPadding) {\n if (!chart) {\n return;\n }\n const padding = toPadding(chart.options.layout.padding);\n const availableWidth = Math.max(width - padding.width, 0);\n const availableHeight = Math.max(height - padding.height, 0);\n const boxes = buildLayoutBoxes(chart.boxes);\n const verticalBoxes = boxes.vertical;\n const horizontalBoxes = boxes.horizontal;\n each(chart.boxes, (box)=>{\n if (typeof box.beforeLayout === 'function') {\n box.beforeLayout();\n }\n });\n const visibleVerticalBoxCount = verticalBoxes.reduce((total, wrap)=>wrap.box.options && wrap.box.options.display === false ? total : total + 1, 0) || 1;\n const params = Object.freeze({\n outerWidth: width,\n outerHeight: height,\n padding,\n availableWidth,\n availableHeight,\n vBoxMaxWidth: availableWidth / 2 / visibleVerticalBoxCount,\n hBoxMaxHeight: availableHeight / 2\n });\n const maxPadding = Object.assign({}, padding);\n updateMaxPadding(maxPadding, toPadding(minPadding));\n const chartArea = Object.assign({\n maxPadding,\n w: availableWidth,\n h: availableHeight,\n x: padding.left,\n y: padding.top\n }, padding);\n const stacks = setLayoutDims(verticalBoxes.concat(horizontalBoxes), params);\n fitBoxes(boxes.fullSize, chartArea, params, stacks);\n fitBoxes(verticalBoxes, chartArea, params, stacks);\n if (fitBoxes(horizontalBoxes, chartArea, params, stacks)) {\n fitBoxes(verticalBoxes, chartArea, params, stacks);\n }\n handleMaxPadding(chartArea);\n placeBoxes(boxes.leftAndTop, chartArea, params, stacks);\n chartArea.x += chartArea.w;\n chartArea.y += chartArea.h;\n placeBoxes(boxes.rightAndBottom, chartArea, params, stacks);\n chart.chartArea = {\n left: chartArea.left,\n top: chartArea.top,\n right: chartArea.left + chartArea.w,\n bottom: chartArea.top + chartArea.h,\n height: chartArea.h,\n width: chartArea.w\n };\n each(boxes.chartArea, (layout)=>{\n const box = layout.box;\n Object.assign(box, chart.chartArea);\n box.update(chartArea.w, chartArea.h, {\n left: 0,\n top: 0,\n right: 0,\n bottom: 0\n });\n });\n }\n};\n\nclass BasePlatform {\n acquireContext(canvas, aspectRatio) {}\n releaseContext(context) {\n return false;\n }\n addEventListener(chart, type, listener) {}\n removeEventListener(chart, type, listener) {}\n getDevicePixelRatio() {\n return 1;\n }\n getMaximumSize(element, width, height, aspectRatio) {\n width = Math.max(0, width || element.width);\n height = height || element.height;\n return {\n width,\n height: Math.max(0, aspectRatio ? Math.floor(width / aspectRatio) : height)\n };\n }\n isAttached(canvas) {\n return true;\n }\n updateConfig(config) {\n }\n}\n\nclass BasicPlatform extends BasePlatform {\n acquireContext(item) {\n return item && item.getContext && item.getContext('2d') || null;\n }\n updateConfig(config) {\n config.options.animation = false;\n }\n}\n\nconst EXPANDO_KEY = '$chartjs';\n const EVENT_TYPES = {\n touchstart: 'mousedown',\n touchmove: 'mousemove',\n touchend: 'mouseup',\n pointerenter: 'mouseenter',\n pointerdown: 'mousedown',\n pointermove: 'mousemove',\n pointerup: 'mouseup',\n pointerleave: 'mouseout',\n pointerout: 'mouseout'\n};\nconst isNullOrEmpty = (value)=>value === null || value === '';\n function initCanvas(canvas, aspectRatio) {\n const style = canvas.style;\n const renderHeight = canvas.getAttribute('height');\n const renderWidth = canvas.getAttribute('width');\n canvas[EXPANDO_KEY] = {\n initial: {\n height: renderHeight,\n width: renderWidth,\n style: {\n display: style.display,\n height: style.height,\n width: style.width\n }\n }\n };\n style.display = style.display || 'block';\n style.boxSizing = style.boxSizing || 'border-box';\n if (isNullOrEmpty(renderWidth)) {\n const displayWidth = readUsedSize(canvas, 'width');\n if (displayWidth !== undefined) {\n canvas.width = displayWidth;\n }\n }\n if (isNullOrEmpty(renderHeight)) {\n if (canvas.style.height === '') {\n canvas.height = canvas.width / (aspectRatio || 2);\n } else {\n const displayHeight = readUsedSize(canvas, 'height');\n if (displayHeight !== undefined) {\n canvas.height = displayHeight;\n }\n }\n }\n return canvas;\n}\nconst eventListenerOptions = supportsEventListenerOptions ? {\n passive: true\n} : false;\nfunction addListener(node, type, listener) {\n node.addEventListener(type, listener, eventListenerOptions);\n}\nfunction removeListener(chart, type, listener) {\n chart.canvas.removeEventListener(type, listener, eventListenerOptions);\n}\nfunction fromNativeEvent(event, chart) {\n const type = EVENT_TYPES[event.type] || event.type;\n const { x , y } = getRelativePosition(event, chart);\n return {\n type,\n chart,\n native: event,\n x: x !== undefined ? x : null,\n y: y !== undefined ? y : null\n };\n}\nfunction nodeListContains(nodeList, canvas) {\n for (const node of nodeList){\n if (node === canvas || node.contains(canvas)) {\n return true;\n }\n }\n}\nfunction createAttachObserver(chart, type, listener) {\n const canvas = chart.canvas;\n const observer = new MutationObserver((entries)=>{\n let trigger = false;\n for (const entry of entries){\n trigger = trigger || nodeListContains(entry.addedNodes, canvas);\n trigger = trigger && !nodeListContains(entry.removedNodes, canvas);\n }\n if (trigger) {\n listener();\n }\n });\n observer.observe(document, {\n childList: true,\n subtree: true\n });\n return observer;\n}\nfunction createDetachObserver(chart, type, listener) {\n const canvas = chart.canvas;\n const observer = new MutationObserver((entries)=>{\n let trigger = false;\n for (const entry of entries){\n trigger = trigger || nodeListContains(entry.removedNodes, canvas);\n trigger = trigger && !nodeListContains(entry.addedNodes, canvas);\n }\n if (trigger) {\n listener();\n }\n });\n observer.observe(document, {\n childList: true,\n subtree: true\n });\n return observer;\n}\nconst drpListeningCharts = new Map();\nlet oldDevicePixelRatio = 0;\nfunction onWindowResize() {\n const dpr = window.devicePixelRatio;\n if (dpr === oldDevicePixelRatio) {\n return;\n }\n oldDevicePixelRatio = dpr;\n drpListeningCharts.forEach((resize, chart)=>{\n if (chart.currentDevicePixelRatio !== dpr) {\n resize();\n }\n });\n}\nfunction listenDevicePixelRatioChanges(chart, resize) {\n if (!drpListeningCharts.size) {\n window.addEventListener('resize', onWindowResize);\n }\n drpListeningCharts.set(chart, resize);\n}\nfunction unlistenDevicePixelRatioChanges(chart) {\n drpListeningCharts.delete(chart);\n if (!drpListeningCharts.size) {\n window.removeEventListener('resize', onWindowResize);\n }\n}\nfunction createResizeObserver(chart, type, listener) {\n const canvas = chart.canvas;\n const container = canvas && _getParentNode(canvas);\n if (!container) {\n return;\n }\n const resize = throttled((width, height)=>{\n const w = container.clientWidth;\n listener(width, height);\n if (w < container.clientWidth) {\n listener();\n }\n }, window);\n const observer = new ResizeObserver((entries)=>{\n const entry = entries[0];\n const width = entry.contentRect.width;\n const height = entry.contentRect.height;\n if (width === 0 && height === 0) {\n return;\n }\n resize(width, height);\n });\n observer.observe(container);\n listenDevicePixelRatioChanges(chart, resize);\n return observer;\n}\nfunction releaseObserver(chart, type, observer) {\n if (observer) {\n observer.disconnect();\n }\n if (type === 'resize') {\n unlistenDevicePixelRatioChanges(chart);\n }\n}\nfunction createProxyAndListen(chart, type, listener) {\n const canvas = chart.canvas;\n const proxy = throttled((event)=>{\n if (chart.ctx !== null) {\n listener(fromNativeEvent(event, chart));\n }\n }, chart);\n addListener(canvas, type, proxy);\n return proxy;\n}\n class DomPlatform extends BasePlatform {\n acquireContext(canvas, aspectRatio) {\n const context = canvas && canvas.getContext && canvas.getContext('2d');\n if (context && context.canvas === canvas) {\n initCanvas(canvas, aspectRatio);\n return context;\n }\n return null;\n }\n releaseContext(context) {\n const canvas = context.canvas;\n if (!canvas[EXPANDO_KEY]) {\n return false;\n }\n const initial = canvas[EXPANDO_KEY].initial;\n [\n 'height',\n 'width'\n ].forEach((prop)=>{\n const value = initial[prop];\n if (isNullOrUndef(value)) {\n canvas.removeAttribute(prop);\n } else {\n canvas.setAttribute(prop, value);\n }\n });\n const style = initial.style || {};\n Object.keys(style).forEach((key)=>{\n canvas.style[key] = style[key];\n });\n canvas.width = canvas.width;\n delete canvas[EXPANDO_KEY];\n return true;\n }\n addEventListener(chart, type, listener) {\n this.removeEventListener(chart, type);\n const proxies = chart.$proxies || (chart.$proxies = {});\n const handlers = {\n attach: createAttachObserver,\n detach: createDetachObserver,\n resize: createResizeObserver\n };\n const handler = handlers[type] || createProxyAndListen;\n proxies[type] = handler(chart, type, listener);\n }\n removeEventListener(chart, type) {\n const proxies = chart.$proxies || (chart.$proxies = {});\n const proxy = proxies[type];\n if (!proxy) {\n return;\n }\n const handlers = {\n attach: releaseObserver,\n detach: releaseObserver,\n resize: releaseObserver\n };\n const handler = handlers[type] || removeListener;\n handler(chart, type, proxy);\n proxies[type] = undefined;\n }\n getDevicePixelRatio() {\n return window.devicePixelRatio;\n }\n getMaximumSize(canvas, width, height, aspectRatio) {\n return getMaximumSize(canvas, width, height, aspectRatio);\n }\n isAttached(canvas) {\n const container = _getParentNode(canvas);\n return !!(container && container.isConnected);\n }\n}\n\nfunction _detectPlatform(canvas) {\n if (!_isDomSupported() || typeof OffscreenCanvas !== 'undefined' && canvas instanceof OffscreenCanvas) {\n return BasicPlatform;\n }\n return DomPlatform;\n}\n\nvar platforms = /*#__PURE__*/Object.freeze({\n__proto__: null,\n_detectPlatform: _detectPlatform,\nBasePlatform: BasePlatform,\nBasicPlatform: BasicPlatform,\nDomPlatform: DomPlatform\n});\n\nconst transparent = 'transparent';\nconst interpolators = {\n boolean (from, to, factor) {\n return factor > 0.5 ? to : from;\n },\n color (from, to, factor) {\n const c0 = color(from || transparent);\n const c1 = c0.valid && color(to || transparent);\n return c1 && c1.valid ? c1.mix(c0, factor).hexString() : to;\n },\n number (from, to, factor) {\n return from + (to - from) * factor;\n }\n};\nclass Animation {\n constructor(cfg, target, prop, to){\n const currentValue = target[prop];\n to = resolve([\n cfg.to,\n to,\n currentValue,\n cfg.from\n ]);\n const from = resolve([\n cfg.from,\n currentValue,\n to\n ]);\n this._active = true;\n this._fn = cfg.fn || interpolators[cfg.type || typeof from];\n this._easing = effects[cfg.easing] || effects.linear;\n this._start = Math.floor(Date.now() + (cfg.delay || 0));\n this._duration = this._total = Math.floor(cfg.duration);\n this._loop = !!cfg.loop;\n this._target = target;\n this._prop = prop;\n this._from = from;\n this._to = to;\n this._promises = undefined;\n }\n active() {\n return this._active;\n }\n update(cfg, to, date) {\n if (this._active) {\n this._notify(false);\n const currentValue = this._target[this._prop];\n const elapsed = date - this._start;\n const remain = this._duration - elapsed;\n this._start = date;\n this._duration = Math.floor(Math.max(remain, cfg.duration));\n this._total += elapsed;\n this._loop = !!cfg.loop;\n this._to = resolve([\n cfg.to,\n to,\n currentValue,\n cfg.from\n ]);\n this._from = resolve([\n cfg.from,\n currentValue,\n to\n ]);\n }\n }\n cancel() {\n if (this._active) {\n this.tick(Date.now());\n this._active = false;\n this._notify(false);\n }\n }\n tick(date) {\n const elapsed = date - this._start;\n const duration = this._duration;\n const prop = this._prop;\n const from = this._from;\n const loop = this._loop;\n const to = this._to;\n let factor;\n this._active = from !== to && (loop || elapsed < duration);\n if (!this._active) {\n this._target[prop] = to;\n this._notify(true);\n return;\n }\n if (elapsed < 0) {\n this._target[prop] = from;\n return;\n }\n factor = elapsed / duration % 2;\n factor = loop && factor > 1 ? 2 - factor : factor;\n factor = this._easing(Math.min(1, Math.max(0, factor)));\n this._target[prop] = this._fn(from, to, factor);\n }\n wait() {\n const promises = this._promises || (this._promises = []);\n return new Promise((res, rej)=>{\n promises.push({\n res,\n rej\n });\n });\n }\n _notify(resolved) {\n const method = resolved ? 'res' : 'rej';\n const promises = this._promises || [];\n for(let i = 0; i < promises.length; i++){\n promises[i][method]();\n }\n }\n}\n\nclass Animations {\n constructor(chart, config){\n this._chart = chart;\n this._properties = new Map();\n this.configure(config);\n }\n configure(config) {\n if (!isObject(config)) {\n return;\n }\n const animationOptions = Object.keys(defaults.animation);\n const animatedProps = this._properties;\n Object.getOwnPropertyNames(config).forEach((key)=>{\n const cfg = config[key];\n if (!isObject(cfg)) {\n return;\n }\n const resolved = {};\n for (const option of animationOptions){\n resolved[option] = cfg[option];\n }\n (isArray(cfg.properties) && cfg.properties || [\n key\n ]).forEach((prop)=>{\n if (prop === key || !animatedProps.has(prop)) {\n animatedProps.set(prop, resolved);\n }\n });\n });\n }\n _animateOptions(target, values) {\n const newOptions = values.options;\n const options = resolveTargetOptions(target, newOptions);\n if (!options) {\n return [];\n }\n const animations = this._createAnimations(options, newOptions);\n if (newOptions.$shared) {\n awaitAll(target.options.$animations, newOptions).then(()=>{\n target.options = newOptions;\n }, ()=>{\n });\n }\n return animations;\n }\n _createAnimations(target, values) {\n const animatedProps = this._properties;\n const animations = [];\n const running = target.$animations || (target.$animations = {});\n const props = Object.keys(values);\n const date = Date.now();\n let i;\n for(i = props.length - 1; i >= 0; --i){\n const prop = props[i];\n if (prop.charAt(0) === '$') {\n continue;\n }\n if (prop === 'options') {\n animations.push(...this._animateOptions(target, values));\n continue;\n }\n const value = values[prop];\n let animation = running[prop];\n const cfg = animatedProps.get(prop);\n if (animation) {\n if (cfg && animation.active()) {\n animation.update(cfg, value, date);\n continue;\n } else {\n animation.cancel();\n }\n }\n if (!cfg || !cfg.duration) {\n target[prop] = value;\n continue;\n }\n running[prop] = animation = new Animation(cfg, target, prop, value);\n animations.push(animation);\n }\n return animations;\n }\n update(target, values) {\n if (this._properties.size === 0) {\n Object.assign(target, values);\n return;\n }\n const animations = this._createAnimations(target, values);\n if (animations.length) {\n animator.add(this._chart, animations);\n return true;\n }\n }\n}\nfunction awaitAll(animations, properties) {\n const running = [];\n const keys = Object.keys(properties);\n for(let i = 0; i < keys.length; i++){\n const anim = animations[keys[i]];\n if (anim && anim.active()) {\n running.push(anim.wait());\n }\n }\n return Promise.all(running);\n}\nfunction resolveTargetOptions(target, newOptions) {\n if (!newOptions) {\n return;\n }\n let options = target.options;\n if (!options) {\n target.options = newOptions;\n return;\n }\n if (options.$shared) {\n target.options = options = Object.assign({}, options, {\n $shared: false,\n $animations: {}\n });\n }\n return options;\n}\n\nfunction scaleClip(scale, allowedOverflow) {\n const opts = scale && scale.options || {};\n const reverse = opts.reverse;\n const min = opts.min === undefined ? allowedOverflow : 0;\n const max = opts.max === undefined ? allowedOverflow : 0;\n return {\n start: reverse ? max : min,\n end: reverse ? min : max\n };\n}\nfunction defaultClip(xScale, yScale, allowedOverflow) {\n if (allowedOverflow === false) {\n return false;\n }\n const x = scaleClip(xScale, allowedOverflow);\n const y = scaleClip(yScale, allowedOverflow);\n return {\n top: y.end,\n right: x.end,\n bottom: y.start,\n left: x.start\n };\n}\nfunction toClip(value) {\n let t, r, b, l;\n if (isObject(value)) {\n t = value.top;\n r = value.right;\n b = value.bottom;\n l = value.left;\n } else {\n t = r = b = l = value;\n }\n return {\n top: t,\n right: r,\n bottom: b,\n left: l,\n disabled: value === false\n };\n}\nfunction getSortedDatasetIndices(chart, filterVisible) {\n const keys = [];\n const metasets = chart._getSortedDatasetMetas(filterVisible);\n let i, ilen;\n for(i = 0, ilen = metasets.length; i < ilen; ++i){\n keys.push(metasets[i].index);\n }\n return keys;\n}\nfunction applyStack(stack, value, dsIndex, options = {}) {\n const keys = stack.keys;\n const singleMode = options.mode === 'single';\n let i, ilen, datasetIndex, otherValue;\n if (value === null) {\n return;\n }\n for(i = 0, ilen = keys.length; i < ilen; ++i){\n datasetIndex = +keys[i];\n if (datasetIndex === dsIndex) {\n if (options.all) {\n continue;\n }\n break;\n }\n otherValue = stack.values[datasetIndex];\n if (isNumberFinite(otherValue) && (singleMode || value === 0 || sign(value) === sign(otherValue))) {\n value += otherValue;\n }\n }\n return value;\n}\nfunction convertObjectDataToArray(data) {\n const keys = Object.keys(data);\n const adata = new Array(keys.length);\n let i, ilen, key;\n for(i = 0, ilen = keys.length; i < ilen; ++i){\n key = keys[i];\n adata[i] = {\n x: key,\n y: data[key]\n };\n }\n return adata;\n}\nfunction isStacked(scale, meta) {\n const stacked = scale && scale.options.stacked;\n return stacked || stacked === undefined && meta.stack !== undefined;\n}\nfunction getStackKey(indexScale, valueScale, meta) {\n return `${indexScale.id}.${valueScale.id}.${meta.stack || meta.type}`;\n}\nfunction getUserBounds(scale) {\n const { min , max , minDefined , maxDefined } = scale.getUserBounds();\n return {\n min: minDefined ? min : Number.NEGATIVE_INFINITY,\n max: maxDefined ? max : Number.POSITIVE_INFINITY\n };\n}\nfunction getOrCreateStack(stacks, stackKey, indexValue) {\n const subStack = stacks[stackKey] || (stacks[stackKey] = {});\n return subStack[indexValue] || (subStack[indexValue] = {});\n}\nfunction getLastIndexInStack(stack, vScale, positive, type) {\n for (const meta of vScale.getMatchingVisibleMetas(type).reverse()){\n const value = stack[meta.index];\n if (positive && value > 0 || !positive && value < 0) {\n return meta.index;\n }\n }\n return null;\n}\nfunction updateStacks(controller, parsed) {\n const { chart , _cachedMeta: meta } = controller;\n const stacks = chart._stacks || (chart._stacks = {});\n const { iScale , vScale , index: datasetIndex } = meta;\n const iAxis = iScale.axis;\n const vAxis = vScale.axis;\n const key = getStackKey(iScale, vScale, meta);\n const ilen = parsed.length;\n let stack;\n for(let i = 0; i < ilen; ++i){\n const item = parsed[i];\n const { [iAxis]: index , [vAxis]: value } = item;\n const itemStacks = item._stacks || (item._stacks = {});\n stack = itemStacks[vAxis] = getOrCreateStack(stacks, key, index);\n stack[datasetIndex] = value;\n stack._top = getLastIndexInStack(stack, vScale, true, meta.type);\n stack._bottom = getLastIndexInStack(stack, vScale, false, meta.type);\n const visualValues = stack._visualValues || (stack._visualValues = {});\n visualValues[datasetIndex] = value;\n }\n}\nfunction getFirstScaleId(chart, axis) {\n const scales = chart.scales;\n return Object.keys(scales).filter((key)=>scales[key].axis === axis).shift();\n}\nfunction createDatasetContext(parent, index) {\n return createContext(parent, {\n active: false,\n dataset: undefined,\n datasetIndex: index,\n index,\n mode: 'default',\n type: 'dataset'\n });\n}\nfunction createDataContext(parent, index, element) {\n return createContext(parent, {\n active: false,\n dataIndex: index,\n parsed: undefined,\n raw: undefined,\n element,\n index,\n mode: 'default',\n type: 'data'\n });\n}\nfunction clearStacks(meta, items) {\n const datasetIndex = meta.controller.index;\n const axis = meta.vScale && meta.vScale.axis;\n if (!axis) {\n return;\n }\n items = items || meta._parsed;\n for (const parsed of items){\n const stacks = parsed._stacks;\n if (!stacks || stacks[axis] === undefined || stacks[axis][datasetIndex] === undefined) {\n return;\n }\n delete stacks[axis][datasetIndex];\n if (stacks[axis]._visualValues !== undefined && stacks[axis]._visualValues[datasetIndex] !== undefined) {\n delete stacks[axis]._visualValues[datasetIndex];\n }\n }\n}\nconst isDirectUpdateMode = (mode)=>mode === 'reset' || mode === 'none';\nconst cloneIfNotShared = (cached, shared)=>shared ? cached : Object.assign({}, cached);\nconst createStack = (canStack, meta, chart)=>canStack && !meta.hidden && meta._stacked && {\n keys: getSortedDatasetIndices(chart, true),\n values: null\n };\nclass DatasetController {\n static defaults = {};\n static datasetElementType = null;\n static dataElementType = null;\n constructor(chart, datasetIndex){\n this.chart = chart;\n this._ctx = chart.ctx;\n this.index = datasetIndex;\n this._cachedDataOpts = {};\n this._cachedMeta = this.getMeta();\n this._type = this._cachedMeta.type;\n this.options = undefined;\n this._parsing = false;\n this._data = undefined;\n this._objectData = undefined;\n this._sharedOptions = undefined;\n this._drawStart = undefined;\n this._drawCount = undefined;\n this.enableOptionSharing = false;\n this.supportsDecimation = false;\n this.$context = undefined;\n this._syncList = [];\n this.datasetElementType = new.target.datasetElementType;\n this.dataElementType = new.target.dataElementType;\n this.initialize();\n }\n initialize() {\n const meta = this._cachedMeta;\n this.configure();\n this.linkScales();\n meta._stacked = isStacked(meta.vScale, meta);\n this.addElements();\n if (this.options.fill && !this.chart.isPluginEnabled('filler')) {\n console.warn(\"Tried to use the 'fill' option without the 'Filler' plugin enabled. Please import and register the 'Filler' plugin and make sure it is not disabled in the options\");\n }\n }\n updateIndex(datasetIndex) {\n if (this.index !== datasetIndex) {\n clearStacks(this._cachedMeta);\n }\n this.index = datasetIndex;\n }\n linkScales() {\n const chart = this.chart;\n const meta = this._cachedMeta;\n const dataset = this.getDataset();\n const chooseId = (axis, x, y, r)=>axis === 'x' ? x : axis === 'r' ? r : y;\n const xid = meta.xAxisID = valueOrDefault(dataset.xAxisID, getFirstScaleId(chart, 'x'));\n const yid = meta.yAxisID = valueOrDefault(dataset.yAxisID, getFirstScaleId(chart, 'y'));\n const rid = meta.rAxisID = valueOrDefault(dataset.rAxisID, getFirstScaleId(chart, 'r'));\n const indexAxis = meta.indexAxis;\n const iid = meta.iAxisID = chooseId(indexAxis, xid, yid, rid);\n const vid = meta.vAxisID = chooseId(indexAxis, yid, xid, rid);\n meta.xScale = this.getScaleForId(xid);\n meta.yScale = this.getScaleForId(yid);\n meta.rScale = this.getScaleForId(rid);\n meta.iScale = this.getScaleForId(iid);\n meta.vScale = this.getScaleForId(vid);\n }\n getDataset() {\n return this.chart.data.datasets[this.index];\n }\n getMeta() {\n return this.chart.getDatasetMeta(this.index);\n }\n getScaleForId(scaleID) {\n return this.chart.scales[scaleID];\n }\n _getOtherScale(scale) {\n const meta = this._cachedMeta;\n return scale === meta.iScale ? meta.vScale : meta.iScale;\n }\n reset() {\n this._update('reset');\n }\n _destroy() {\n const meta = this._cachedMeta;\n if (this._data) {\n unlistenArrayEvents(this._data, this);\n }\n if (meta._stacked) {\n clearStacks(meta);\n }\n }\n _dataCheck() {\n const dataset = this.getDataset();\n const data = dataset.data || (dataset.data = []);\n const _data = this._data;\n if (isObject(data)) {\n this._data = convertObjectDataToArray(data);\n } else if (_data !== data) {\n if (_data) {\n unlistenArrayEvents(_data, this);\n const meta = this._cachedMeta;\n clearStacks(meta);\n meta._parsed = [];\n }\n if (data && Object.isExtensible(data)) {\n listenArrayEvents(data, this);\n }\n this._syncList = [];\n this._data = data;\n }\n }\n addElements() {\n const meta = this._cachedMeta;\n this._dataCheck();\n if (this.datasetElementType) {\n meta.dataset = new this.datasetElementType();\n }\n }\n buildOrUpdateElements(resetNewElements) {\n const meta = this._cachedMeta;\n const dataset = this.getDataset();\n let stackChanged = false;\n this._dataCheck();\n const oldStacked = meta._stacked;\n meta._stacked = isStacked(meta.vScale, meta);\n if (meta.stack !== dataset.stack) {\n stackChanged = true;\n clearStacks(meta);\n meta.stack = dataset.stack;\n }\n this._resyncElements(resetNewElements);\n if (stackChanged || oldStacked !== meta._stacked) {\n updateStacks(this, meta._parsed);\n }\n }\n configure() {\n const config = this.chart.config;\n const scopeKeys = config.datasetScopeKeys(this._type);\n const scopes = config.getOptionScopes(this.getDataset(), scopeKeys, true);\n this.options = config.createResolver(scopes, this.getContext());\n this._parsing = this.options.parsing;\n this._cachedDataOpts = {};\n }\n parse(start, count) {\n const { _cachedMeta: meta , _data: data } = this;\n const { iScale , _stacked } = meta;\n const iAxis = iScale.axis;\n let sorted = start === 0 && count === data.length ? true : meta._sorted;\n let prev = start > 0 && meta._parsed[start - 1];\n let i, cur, parsed;\n if (this._parsing === false) {\n meta._parsed = data;\n meta._sorted = true;\n parsed = data;\n } else {\n if (isArray(data[start])) {\n parsed = this.parseArrayData(meta, data, start, count);\n } else if (isObject(data[start])) {\n parsed = this.parseObjectData(meta, data, start, count);\n } else {\n parsed = this.parsePrimitiveData(meta, data, start, count);\n }\n const isNotInOrderComparedToPrev = ()=>cur[iAxis] === null || prev && cur[iAxis] < prev[iAxis];\n for(i = 0; i < count; ++i){\n meta._parsed[i + start] = cur = parsed[i];\n if (sorted) {\n if (isNotInOrderComparedToPrev()) {\n sorted = false;\n }\n prev = cur;\n }\n }\n meta._sorted = sorted;\n }\n if (_stacked) {\n updateStacks(this, parsed);\n }\n }\n parsePrimitiveData(meta, data, start, count) {\n const { iScale , vScale } = meta;\n const iAxis = iScale.axis;\n const vAxis = vScale.axis;\n const labels = iScale.getLabels();\n const singleScale = iScale === vScale;\n const parsed = new Array(count);\n let i, ilen, index;\n for(i = 0, ilen = count; i < ilen; ++i){\n index = i + start;\n parsed[i] = {\n [iAxis]: singleScale || iScale.parse(labels[index], index),\n [vAxis]: vScale.parse(data[index], index)\n };\n }\n return parsed;\n }\n parseArrayData(meta, data, start, count) {\n const { xScale , yScale } = meta;\n const parsed = new Array(count);\n let i, ilen, index, item;\n for(i = 0, ilen = count; i < ilen; ++i){\n index = i + start;\n item = data[index];\n parsed[i] = {\n x: xScale.parse(item[0], index),\n y: yScale.parse(item[1], index)\n };\n }\n return parsed;\n }\n parseObjectData(meta, data, start, count) {\n const { xScale , yScale } = meta;\n const { xAxisKey ='x' , yAxisKey ='y' } = this._parsing;\n const parsed = new Array(count);\n let i, ilen, index, item;\n for(i = 0, ilen = count; i < ilen; ++i){\n index = i + start;\n item = data[index];\n parsed[i] = {\n x: xScale.parse(resolveObjectKey(item, xAxisKey), index),\n y: yScale.parse(resolveObjectKey(item, yAxisKey), index)\n };\n }\n return parsed;\n }\n getParsed(index) {\n return this._cachedMeta._parsed[index];\n }\n getDataElement(index) {\n return this._cachedMeta.data[index];\n }\n applyStack(scale, parsed, mode) {\n const chart = this.chart;\n const meta = this._cachedMeta;\n const value = parsed[scale.axis];\n const stack = {\n keys: getSortedDatasetIndices(chart, true),\n values: parsed._stacks[scale.axis]._visualValues\n };\n return applyStack(stack, value, meta.index, {\n mode\n });\n }\n updateRangeFromParsed(range, scale, parsed, stack) {\n const parsedValue = parsed[scale.axis];\n let value = parsedValue === null ? NaN : parsedValue;\n const values = stack && parsed._stacks[scale.axis];\n if (stack && values) {\n stack.values = values;\n value = applyStack(stack, parsedValue, this._cachedMeta.index);\n }\n range.min = Math.min(range.min, value);\n range.max = Math.max(range.max, value);\n }\n getMinMax(scale, canStack) {\n const meta = this._cachedMeta;\n const _parsed = meta._parsed;\n const sorted = meta._sorted && scale === meta.iScale;\n const ilen = _parsed.length;\n const otherScale = this._getOtherScale(scale);\n const stack = createStack(canStack, meta, this.chart);\n const range = {\n min: Number.POSITIVE_INFINITY,\n max: Number.NEGATIVE_INFINITY\n };\n const { min: otherMin , max: otherMax } = getUserBounds(otherScale);\n let i, parsed;\n function _skip() {\n parsed = _parsed[i];\n const otherValue = parsed[otherScale.axis];\n return !isNumberFinite(parsed[scale.axis]) || otherMin > otherValue || otherMax < otherValue;\n }\n for(i = 0; i < ilen; ++i){\n if (_skip()) {\n continue;\n }\n this.updateRangeFromParsed(range, scale, parsed, stack);\n if (sorted) {\n break;\n }\n }\n if (sorted) {\n for(i = ilen - 1; i >= 0; --i){\n if (_skip()) {\n continue;\n }\n this.updateRangeFromParsed(range, scale, parsed, stack);\n break;\n }\n }\n return range;\n }\n getAllParsedValues(scale) {\n const parsed = this._cachedMeta._parsed;\n const values = [];\n let i, ilen, value;\n for(i = 0, ilen = parsed.length; i < ilen; ++i){\n value = parsed[i][scale.axis];\n if (isNumberFinite(value)) {\n values.push(value);\n }\n }\n return values;\n }\n getMaxOverflow() {\n return false;\n }\n getLabelAndValue(index) {\n const meta = this._cachedMeta;\n const iScale = meta.iScale;\n const vScale = meta.vScale;\n const parsed = this.getParsed(index);\n return {\n label: iScale ? '' + iScale.getLabelForValue(parsed[iScale.axis]) : '',\n value: vScale ? '' + vScale.getLabelForValue(parsed[vScale.axis]) : ''\n };\n }\n _update(mode) {\n const meta = this._cachedMeta;\n this.update(mode || 'default');\n meta._clip = toClip(valueOrDefault(this.options.clip, defaultClip(meta.xScale, meta.yScale, this.getMaxOverflow())));\n }\n update(mode) {}\n draw() {\n const ctx = this._ctx;\n const chart = this.chart;\n const meta = this._cachedMeta;\n const elements = meta.data || [];\n const area = chart.chartArea;\n const active = [];\n const start = this._drawStart || 0;\n const count = this._drawCount || elements.length - start;\n const drawActiveElementsOnTop = this.options.drawActiveElementsOnTop;\n let i;\n if (meta.dataset) {\n meta.dataset.draw(ctx, area, start, count);\n }\n for(i = start; i < start + count; ++i){\n const element = elements[i];\n if (element.hidden) {\n continue;\n }\n if (element.active && drawActiveElementsOnTop) {\n active.push(element);\n } else {\n element.draw(ctx, area);\n }\n }\n for(i = 0; i < active.length; ++i){\n active[i].draw(ctx, area);\n }\n }\n getStyle(index, active) {\n const mode = active ? 'active' : 'default';\n return index === undefined && this._cachedMeta.dataset ? this.resolveDatasetElementOptions(mode) : this.resolveDataElementOptions(index || 0, mode);\n }\n getContext(index, active, mode) {\n const dataset = this.getDataset();\n let context;\n if (index >= 0 && index < this._cachedMeta.data.length) {\n const element = this._cachedMeta.data[index];\n context = element.$context || (element.$context = createDataContext(this.getContext(), index, element));\n context.parsed = this.getParsed(index);\n context.raw = dataset.data[index];\n context.index = context.dataIndex = index;\n } else {\n context = this.$context || (this.$context = createDatasetContext(this.chart.getContext(), this.index));\n context.dataset = dataset;\n context.index = context.datasetIndex = this.index;\n }\n context.active = !!active;\n context.mode = mode;\n return context;\n }\n resolveDatasetElementOptions(mode) {\n return this._resolveElementOptions(this.datasetElementType.id, mode);\n }\n resolveDataElementOptions(index, mode) {\n return this._resolveElementOptions(this.dataElementType.id, mode, index);\n }\n _resolveElementOptions(elementType, mode = 'default', index) {\n const active = mode === 'active';\n const cache = this._cachedDataOpts;\n const cacheKey = elementType + '-' + mode;\n const cached = cache[cacheKey];\n const sharing = this.enableOptionSharing && defined(index);\n if (cached) {\n return cloneIfNotShared(cached, sharing);\n }\n const config = this.chart.config;\n const scopeKeys = config.datasetElementScopeKeys(this._type, elementType);\n const prefixes = active ? [\n `${elementType}Hover`,\n 'hover',\n elementType,\n ''\n ] : [\n elementType,\n ''\n ];\n const scopes = config.getOptionScopes(this.getDataset(), scopeKeys);\n const names = Object.keys(defaults.elements[elementType]);\n const context = ()=>this.getContext(index, active, mode);\n const values = config.resolveNamedOptions(scopes, names, context, prefixes);\n if (values.$shared) {\n values.$shared = sharing;\n cache[cacheKey] = Object.freeze(cloneIfNotShared(values, sharing));\n }\n return values;\n }\n _resolveAnimations(index, transition, active) {\n const chart = this.chart;\n const cache = this._cachedDataOpts;\n const cacheKey = `animation-${transition}`;\n const cached = cache[cacheKey];\n if (cached) {\n return cached;\n }\n let options;\n if (chart.options.animation !== false) {\n const config = this.chart.config;\n const scopeKeys = config.datasetAnimationScopeKeys(this._type, transition);\n const scopes = config.getOptionScopes(this.getDataset(), scopeKeys);\n options = config.createResolver(scopes, this.getContext(index, active, transition));\n }\n const animations = new Animations(chart, options && options.animations);\n if (options && options._cacheable) {\n cache[cacheKey] = Object.freeze(animations);\n }\n return animations;\n }\n getSharedOptions(options) {\n if (!options.$shared) {\n return;\n }\n return this._sharedOptions || (this._sharedOptions = Object.assign({}, options));\n }\n includeOptions(mode, sharedOptions) {\n return !sharedOptions || isDirectUpdateMode(mode) || this.chart._animationsDisabled;\n }\n _getSharedOptions(start, mode) {\n const firstOpts = this.resolveDataElementOptions(start, mode);\n const previouslySharedOptions = this._sharedOptions;\n const sharedOptions = this.getSharedOptions(firstOpts);\n const includeOptions = this.includeOptions(mode, sharedOptions) || sharedOptions !== previouslySharedOptions;\n this.updateSharedOptions(sharedOptions, mode, firstOpts);\n return {\n sharedOptions,\n includeOptions\n };\n }\n updateElement(element, index, properties, mode) {\n if (isDirectUpdateMode(mode)) {\n Object.assign(element, properties);\n } else {\n this._resolveAnimations(index, mode).update(element, properties);\n }\n }\n updateSharedOptions(sharedOptions, mode, newOptions) {\n if (sharedOptions && !isDirectUpdateMode(mode)) {\n this._resolveAnimations(undefined, mode).update(sharedOptions, newOptions);\n }\n }\n _setStyle(element, index, mode, active) {\n element.active = active;\n const options = this.getStyle(index, active);\n this._resolveAnimations(index, mode, active).update(element, {\n options: !active && this.getSharedOptions(options) || options\n });\n }\n removeHoverStyle(element, datasetIndex, index) {\n this._setStyle(element, index, 'active', false);\n }\n setHoverStyle(element, datasetIndex, index) {\n this._setStyle(element, index, 'active', true);\n }\n _removeDatasetHoverStyle() {\n const element = this._cachedMeta.dataset;\n if (element) {\n this._setStyle(element, undefined, 'active', false);\n }\n }\n _setDatasetHoverStyle() {\n const element = this._cachedMeta.dataset;\n if (element) {\n this._setStyle(element, undefined, 'active', true);\n }\n }\n _resyncElements(resetNewElements) {\n const data = this._data;\n const elements = this._cachedMeta.data;\n for (const [method, arg1, arg2] of this._syncList){\n this[method](arg1, arg2);\n }\n this._syncList = [];\n const numMeta = elements.length;\n const numData = data.length;\n const count = Math.min(numData, numMeta);\n if (count) {\n this.parse(0, count);\n }\n if (numData > numMeta) {\n this._insertElements(numMeta, numData - numMeta, resetNewElements);\n } else if (numData < numMeta) {\n this._removeElements(numData, numMeta - numData);\n }\n }\n _insertElements(start, count, resetNewElements = true) {\n const meta = this._cachedMeta;\n const data = meta.data;\n const end = start + count;\n let i;\n const move = (arr)=>{\n arr.length += count;\n for(i = arr.length - 1; i >= end; i--){\n arr[i] = arr[i - count];\n }\n };\n move(data);\n for(i = start; i < end; ++i){\n data[i] = new this.dataElementType();\n }\n if (this._parsing) {\n move(meta._parsed);\n }\n this.parse(start, count);\n if (resetNewElements) {\n this.updateElements(data, start, count, 'reset');\n }\n }\n updateElements(element, start, count, mode) {}\n _removeElements(start, count) {\n const meta = this._cachedMeta;\n if (this._parsing) {\n const removed = meta._parsed.splice(start, count);\n if (meta._stacked) {\n clearStacks(meta, removed);\n }\n }\n meta.data.splice(start, count);\n }\n _sync(args) {\n if (this._parsing) {\n this._syncList.push(args);\n } else {\n const [method, arg1, arg2] = args;\n this[method](arg1, arg2);\n }\n this.chart._dataChanges.push([\n this.index,\n ...args\n ]);\n }\n _onDataPush() {\n const count = arguments.length;\n this._sync([\n '_insertElements',\n this.getDataset().data.length - count,\n count\n ]);\n }\n _onDataPop() {\n this._sync([\n '_removeElements',\n this._cachedMeta.data.length - 1,\n 1\n ]);\n }\n _onDataShift() {\n this._sync([\n '_removeElements',\n 0,\n 1\n ]);\n }\n _onDataSplice(start, count) {\n if (count) {\n this._sync([\n '_removeElements',\n start,\n count\n ]);\n }\n const newCount = arguments.length - 2;\n if (newCount) {\n this._sync([\n '_insertElements',\n start,\n newCount\n ]);\n }\n }\n _onDataUnshift() {\n this._sync([\n '_insertElements',\n 0,\n arguments.length\n ]);\n }\n}\n\nclass Element {\n static defaults = {};\n static defaultRoutes = undefined;\n active = false;\n tooltipPosition(useFinalPosition) {\n const { x , y } = this.getProps([\n 'x',\n 'y'\n ], useFinalPosition);\n return {\n x,\n y\n };\n }\n hasValue() {\n return isNumber(this.x) && isNumber(this.y);\n }\n getProps(props, final) {\n const anims = this.$animations;\n if (!final || !anims) {\n // let's not create an object, if not needed\n return this;\n }\n const ret = {};\n props.forEach((prop)=>{\n ret[prop] = anims[prop] && anims[prop].active() ? anims[prop]._to : this[prop];\n });\n return ret;\n }\n}\n\nfunction autoSkip(scale, ticks) {\n const tickOpts = scale.options.ticks;\n const determinedMaxTicks = determineMaxTicks(scale);\n const ticksLimit = Math.min(tickOpts.maxTicksLimit || determinedMaxTicks, determinedMaxTicks);\n const majorIndices = tickOpts.major.enabled ? getMajorIndices(ticks) : [];\n const numMajorIndices = majorIndices.length;\n const first = majorIndices[0];\n const last = majorIndices[numMajorIndices - 1];\n const newTicks = [];\n if (numMajorIndices > ticksLimit) {\n skipMajors(ticks, newTicks, majorIndices, numMajorIndices / ticksLimit);\n return newTicks;\n }\n const spacing = calculateSpacing(majorIndices, ticks, ticksLimit);\n if (numMajorIndices > 0) {\n let i, ilen;\n const avgMajorSpacing = numMajorIndices > 1 ? Math.round((last - first) / (numMajorIndices - 1)) : null;\n skip(ticks, newTicks, spacing, isNullOrUndef(avgMajorSpacing) ? 0 : first - avgMajorSpacing, first);\n for(i = 0, ilen = numMajorIndices - 1; i < ilen; i++){\n skip(ticks, newTicks, spacing, majorIndices[i], majorIndices[i + 1]);\n }\n skip(ticks, newTicks, spacing, last, isNullOrUndef(avgMajorSpacing) ? ticks.length : last + avgMajorSpacing);\n return newTicks;\n }\n skip(ticks, newTicks, spacing);\n return newTicks;\n}\nfunction determineMaxTicks(scale) {\n const offset = scale.options.offset;\n const tickLength = scale._tickSize();\n const maxScale = scale._length / tickLength + (offset ? 0 : 1);\n const maxChart = scale._maxLength / tickLength;\n return Math.floor(Math.min(maxScale, maxChart));\n}\n function calculateSpacing(majorIndices, ticks, ticksLimit) {\n const evenMajorSpacing = getEvenSpacing(majorIndices);\n const spacing = ticks.length / ticksLimit;\n if (!evenMajorSpacing) {\n return Math.max(spacing, 1);\n }\n const factors = _factorize(evenMajorSpacing);\n for(let i = 0, ilen = factors.length - 1; i < ilen; i++){\n const factor = factors[i];\n if (factor > spacing) {\n return factor;\n }\n }\n return Math.max(spacing, 1);\n}\n function getMajorIndices(ticks) {\n const result = [];\n let i, ilen;\n for(i = 0, ilen = ticks.length; i < ilen; i++){\n if (ticks[i].major) {\n result.push(i);\n }\n }\n return result;\n}\n function skipMajors(ticks, newTicks, majorIndices, spacing) {\n let count = 0;\n let next = majorIndices[0];\n let i;\n spacing = Math.ceil(spacing);\n for(i = 0; i < ticks.length; i++){\n if (i === next) {\n newTicks.push(ticks[i]);\n count++;\n next = majorIndices[count * spacing];\n }\n }\n}\n function skip(ticks, newTicks, spacing, majorStart, majorEnd) {\n const start = valueOrDefault(majorStart, 0);\n const end = Math.min(valueOrDefault(majorEnd, ticks.length), ticks.length);\n let count = 0;\n let length, i, next;\n spacing = Math.ceil(spacing);\n if (majorEnd) {\n length = majorEnd - majorStart;\n spacing = length / Math.floor(length / spacing);\n }\n next = start;\n while(next < 0){\n count++;\n next = Math.round(start + count * spacing);\n }\n for(i = Math.max(start, 0); i < end; i++){\n if (i === next) {\n newTicks.push(ticks[i]);\n count++;\n next = Math.round(start + count * spacing);\n }\n }\n}\n function getEvenSpacing(arr) {\n const len = arr.length;\n let i, diff;\n if (len < 2) {\n return false;\n }\n for(diff = arr[0], i = 1; i < len; ++i){\n if (arr[i] - arr[i - 1] !== diff) {\n return false;\n }\n }\n return diff;\n}\n\nconst reverseAlign = (align)=>align === 'left' ? 'right' : align === 'right' ? 'left' : align;\nconst offsetFromEdge = (scale, edge, offset)=>edge === 'top' || edge === 'left' ? scale[edge] + offset : scale[edge] - offset;\nconst getTicksLimit = (ticksLength, maxTicksLimit)=>Math.min(maxTicksLimit || ticksLength, ticksLength);\n function sample(arr, numItems) {\n const result = [];\n const increment = arr.length / numItems;\n const len = arr.length;\n let i = 0;\n for(; i < len; i += increment){\n result.push(arr[Math.floor(i)]);\n }\n return result;\n}\n function getPixelForGridLine(scale, index, offsetGridLines) {\n const length = scale.ticks.length;\n const validIndex = Math.min(index, length - 1);\n const start = scale._startPixel;\n const end = scale._endPixel;\n const epsilon = 1e-6;\n let lineValue = scale.getPixelForTick(validIndex);\n let offset;\n if (offsetGridLines) {\n if (length === 1) {\n offset = Math.max(lineValue - start, end - lineValue);\n } else if (index === 0) {\n offset = (scale.getPixelForTick(1) - lineValue) / 2;\n } else {\n offset = (lineValue - scale.getPixelForTick(validIndex - 1)) / 2;\n }\n lineValue += validIndex < index ? offset : -offset;\n if (lineValue < start - epsilon || lineValue > end + epsilon) {\n return;\n }\n }\n return lineValue;\n}\n function garbageCollect(caches, length) {\n each(caches, (cache)=>{\n const gc = cache.gc;\n const gcLen = gc.length / 2;\n let i;\n if (gcLen > length) {\n for(i = 0; i < gcLen; ++i){\n delete cache.data[gc[i]];\n }\n gc.splice(0, gcLen);\n }\n });\n}\n function getTickMarkLength(options) {\n return options.drawTicks ? options.tickLength : 0;\n}\n function getTitleHeight(options, fallback) {\n if (!options.display) {\n return 0;\n }\n const font = toFont(options.font, fallback);\n const padding = toPadding(options.padding);\n const lines = isArray(options.text) ? options.text.length : 1;\n return lines * font.lineHeight + padding.height;\n}\nfunction createScaleContext(parent, scale) {\n return createContext(parent, {\n scale,\n type: 'scale'\n });\n}\nfunction createTickContext(parent, index, tick) {\n return createContext(parent, {\n tick,\n index,\n type: 'tick'\n });\n}\nfunction titleAlign(align, position, reverse) {\n let ret = _toLeftRightCenter(align);\n if (reverse && position !== 'right' || !reverse && position === 'right') {\n ret = reverseAlign(ret);\n }\n return ret;\n}\nfunction titleArgs(scale, offset, position, align) {\n const { top , left , bottom , right , chart } = scale;\n const { chartArea , scales } = chart;\n let rotation = 0;\n let maxWidth, titleX, titleY;\n const height = bottom - top;\n const width = right - left;\n if (scale.isHorizontal()) {\n titleX = _alignStartEnd(align, left, right);\n if (isObject(position)) {\n const positionAxisID = Object.keys(position)[0];\n const value = position[positionAxisID];\n titleY = scales[positionAxisID].getPixelForValue(value) + height - offset;\n } else if (position === 'center') {\n titleY = (chartArea.bottom + chartArea.top) / 2 + height - offset;\n } else {\n titleY = offsetFromEdge(scale, position, offset);\n }\n maxWidth = right - left;\n } else {\n if (isObject(position)) {\n const positionAxisID1 = Object.keys(position)[0];\n const value1 = position[positionAxisID1];\n titleX = scales[positionAxisID1].getPixelForValue(value1) - width + offset;\n } else if (position === 'center') {\n titleX = (chartArea.left + chartArea.right) / 2 - width + offset;\n } else {\n titleX = offsetFromEdge(scale, position, offset);\n }\n titleY = _alignStartEnd(align, bottom, top);\n rotation = position === 'left' ? -HALF_PI : HALF_PI;\n }\n return {\n titleX,\n titleY,\n maxWidth,\n rotation\n };\n}\nclass Scale extends Element {\n constructor(cfg){\n super();\n this.id = cfg.id;\n this.type = cfg.type;\n this.options = undefined;\n this.ctx = cfg.ctx;\n this.chart = cfg.chart;\n this.top = undefined;\n this.bottom = undefined;\n this.left = undefined;\n this.right = undefined;\n this.width = undefined;\n this.height = undefined;\n this._margins = {\n left: 0,\n right: 0,\n top: 0,\n bottom: 0\n };\n this.maxWidth = undefined;\n this.maxHeight = undefined;\n this.paddingTop = undefined;\n this.paddingBottom = undefined;\n this.paddingLeft = undefined;\n this.paddingRight = undefined;\n this.axis = undefined;\n this.labelRotation = undefined;\n this.min = undefined;\n this.max = undefined;\n this._range = undefined;\n this.ticks = [];\n this._gridLineItems = null;\n this._labelItems = null;\n this._labelSizes = null;\n this._length = 0;\n this._maxLength = 0;\n this._longestTextCache = {};\n this._startPixel = undefined;\n this._endPixel = undefined;\n this._reversePixels = false;\n this._userMax = undefined;\n this._userMin = undefined;\n this._suggestedMax = undefined;\n this._suggestedMin = undefined;\n this._ticksLength = 0;\n this._borderValue = 0;\n this._cache = {};\n this._dataLimitsCached = false;\n this.$context = undefined;\n }\n init(options) {\n this.options = options.setContext(this.getContext());\n this.axis = options.axis;\n this._userMin = this.parse(options.min);\n this._userMax = this.parse(options.max);\n this._suggestedMin = this.parse(options.suggestedMin);\n this._suggestedMax = this.parse(options.suggestedMax);\n }\n parse(raw, index) {\n return raw;\n }\n getUserBounds() {\n let { _userMin , _userMax , _suggestedMin , _suggestedMax } = this;\n _userMin = finiteOrDefault(_userMin, Number.POSITIVE_INFINITY);\n _userMax = finiteOrDefault(_userMax, Number.NEGATIVE_INFINITY);\n _suggestedMin = finiteOrDefault(_suggestedMin, Number.POSITIVE_INFINITY);\n _suggestedMax = finiteOrDefault(_suggestedMax, Number.NEGATIVE_INFINITY);\n return {\n min: finiteOrDefault(_userMin, _suggestedMin),\n max: finiteOrDefault(_userMax, _suggestedMax),\n minDefined: isNumberFinite(_userMin),\n maxDefined: isNumberFinite(_userMax)\n };\n }\n getMinMax(canStack) {\n let { min , max , minDefined , maxDefined } = this.getUserBounds();\n let range;\n if (minDefined && maxDefined) {\n return {\n min,\n max\n };\n }\n const metas = this.getMatchingVisibleMetas();\n for(let i = 0, ilen = metas.length; i < ilen; ++i){\n range = metas[i].controller.getMinMax(this, canStack);\n if (!minDefined) {\n min = Math.min(min, range.min);\n }\n if (!maxDefined) {\n max = Math.max(max, range.max);\n }\n }\n min = maxDefined && min > max ? max : min;\n max = minDefined && min > max ? min : max;\n return {\n min: finiteOrDefault(min, finiteOrDefault(max, min)),\n max: finiteOrDefault(max, finiteOrDefault(min, max))\n };\n }\n getPadding() {\n return {\n left: this.paddingLeft || 0,\n top: this.paddingTop || 0,\n right: this.paddingRight || 0,\n bottom: this.paddingBottom || 0\n };\n }\n getTicks() {\n return this.ticks;\n }\n getLabels() {\n const data = this.chart.data;\n return this.options.labels || (this.isHorizontal() ? data.xLabels : data.yLabels) || data.labels || [];\n }\n getLabelItems(chartArea = this.chart.chartArea) {\n const items = this._labelItems || (this._labelItems = this._computeLabelItems(chartArea));\n return items;\n }\n beforeLayout() {\n this._cache = {};\n this._dataLimitsCached = false;\n }\n beforeUpdate() {\n callback(this.options.beforeUpdate, [\n this\n ]);\n }\n update(maxWidth, maxHeight, margins) {\n const { beginAtZero , grace , ticks: tickOpts } = this.options;\n const sampleSize = tickOpts.sampleSize;\n this.beforeUpdate();\n this.maxWidth = maxWidth;\n this.maxHeight = maxHeight;\n this._margins = margins = Object.assign({\n left: 0,\n right: 0,\n top: 0,\n bottom: 0\n }, margins);\n this.ticks = null;\n this._labelSizes = null;\n this._gridLineItems = null;\n this._labelItems = null;\n this.beforeSetDimensions();\n this.setDimensions();\n this.afterSetDimensions();\n this._maxLength = this.isHorizontal() ? this.width + margins.left + margins.right : this.height + margins.top + margins.bottom;\n if (!this._dataLimitsCached) {\n this.beforeDataLimits();\n this.determineDataLimits();\n this.afterDataLimits();\n this._range = _addGrace(this, grace, beginAtZero);\n this._dataLimitsCached = true;\n }\n this.beforeBuildTicks();\n this.ticks = this.buildTicks() || [];\n this.afterBuildTicks();\n const samplingEnabled = sampleSize < this.ticks.length;\n this._convertTicksToLabels(samplingEnabled ? sample(this.ticks, sampleSize) : this.ticks);\n this.configure();\n this.beforeCalculateLabelRotation();\n this.calculateLabelRotation();\n this.afterCalculateLabelRotation();\n if (tickOpts.display && (tickOpts.autoSkip || tickOpts.source === 'auto')) {\n this.ticks = autoSkip(this, this.ticks);\n this._labelSizes = null;\n this.afterAutoSkip();\n }\n if (samplingEnabled) {\n this._convertTicksToLabels(this.ticks);\n }\n this.beforeFit();\n this.fit();\n this.afterFit();\n this.afterUpdate();\n }\n configure() {\n let reversePixels = this.options.reverse;\n let startPixel, endPixel;\n if (this.isHorizontal()) {\n startPixel = this.left;\n endPixel = this.right;\n } else {\n startPixel = this.top;\n endPixel = this.bottom;\n reversePixels = !reversePixels;\n }\n this._startPixel = startPixel;\n this._endPixel = endPixel;\n this._reversePixels = reversePixels;\n this._length = endPixel - startPixel;\n this._alignToPixels = this.options.alignToPixels;\n }\n afterUpdate() {\n callback(this.options.afterUpdate, [\n this\n ]);\n }\n beforeSetDimensions() {\n callback(this.options.beforeSetDimensions, [\n this\n ]);\n }\n setDimensions() {\n if (this.isHorizontal()) {\n this.width = this.maxWidth;\n this.left = 0;\n this.right = this.width;\n } else {\n this.height = this.maxHeight;\n this.top = 0;\n this.bottom = this.height;\n }\n this.paddingLeft = 0;\n this.paddingTop = 0;\n this.paddingRight = 0;\n this.paddingBottom = 0;\n }\n afterSetDimensions() {\n callback(this.options.afterSetDimensions, [\n this\n ]);\n }\n _callHooks(name) {\n this.chart.notifyPlugins(name, this.getContext());\n callback(this.options[name], [\n this\n ]);\n }\n beforeDataLimits() {\n this._callHooks('beforeDataLimits');\n }\n determineDataLimits() {}\n afterDataLimits() {\n this._callHooks('afterDataLimits');\n }\n beforeBuildTicks() {\n this._callHooks('beforeBuildTicks');\n }\n buildTicks() {\n return [];\n }\n afterBuildTicks() {\n this._callHooks('afterBuildTicks');\n }\n beforeTickToLabelConversion() {\n callback(this.options.beforeTickToLabelConversion, [\n this\n ]);\n }\n generateTickLabels(ticks) {\n const tickOpts = this.options.ticks;\n let i, ilen, tick;\n for(i = 0, ilen = ticks.length; i < ilen; i++){\n tick = ticks[i];\n tick.label = callback(tickOpts.callback, [\n tick.value,\n i,\n ticks\n ], this);\n }\n }\n afterTickToLabelConversion() {\n callback(this.options.afterTickToLabelConversion, [\n this\n ]);\n }\n beforeCalculateLabelRotation() {\n callback(this.options.beforeCalculateLabelRotation, [\n this\n ]);\n }\n calculateLabelRotation() {\n const options = this.options;\n const tickOpts = options.ticks;\n const numTicks = getTicksLimit(this.ticks.length, options.ticks.maxTicksLimit);\n const minRotation = tickOpts.minRotation || 0;\n const maxRotation = tickOpts.maxRotation;\n let labelRotation = minRotation;\n let tickWidth, maxHeight, maxLabelDiagonal;\n if (!this._isVisible() || !tickOpts.display || minRotation >= maxRotation || numTicks <= 1 || !this.isHorizontal()) {\n this.labelRotation = minRotation;\n return;\n }\n const labelSizes = this._getLabelSizes();\n const maxLabelWidth = labelSizes.widest.width;\n const maxLabelHeight = labelSizes.highest.height;\n const maxWidth = _limitValue(this.chart.width - maxLabelWidth, 0, this.maxWidth);\n tickWidth = options.offset ? this.maxWidth / numTicks : maxWidth / (numTicks - 1);\n if (maxLabelWidth + 6 > tickWidth) {\n tickWidth = maxWidth / (numTicks - (options.offset ? 0.5 : 1));\n maxHeight = this.maxHeight - getTickMarkLength(options.grid) - tickOpts.padding - getTitleHeight(options.title, this.chart.options.font);\n maxLabelDiagonal = Math.sqrt(maxLabelWidth * maxLabelWidth + maxLabelHeight * maxLabelHeight);\n labelRotation = toDegrees(Math.min(Math.asin(_limitValue((labelSizes.highest.height + 6) / tickWidth, -1, 1)), Math.asin(_limitValue(maxHeight / maxLabelDiagonal, -1, 1)) - Math.asin(_limitValue(maxLabelHeight / maxLabelDiagonal, -1, 1))));\n labelRotation = Math.max(minRotation, Math.min(maxRotation, labelRotation));\n }\n this.labelRotation = labelRotation;\n }\n afterCalculateLabelRotation() {\n callback(this.options.afterCalculateLabelRotation, [\n this\n ]);\n }\n afterAutoSkip() {}\n beforeFit() {\n callback(this.options.beforeFit, [\n this\n ]);\n }\n fit() {\n const minSize = {\n width: 0,\n height: 0\n };\n const { chart , options: { ticks: tickOpts , title: titleOpts , grid: gridOpts } } = this;\n const display = this._isVisible();\n const isHorizontal = this.isHorizontal();\n if (display) {\n const titleHeight = getTitleHeight(titleOpts, chart.options.font);\n if (isHorizontal) {\n minSize.width = this.maxWidth;\n minSize.height = getTickMarkLength(gridOpts) + titleHeight;\n } else {\n minSize.height = this.maxHeight;\n minSize.width = getTickMarkLength(gridOpts) + titleHeight;\n }\n if (tickOpts.display && this.ticks.length) {\n const { first , last , widest , highest } = this._getLabelSizes();\n const tickPadding = tickOpts.padding * 2;\n const angleRadians = toRadians(this.labelRotation);\n const cos = Math.cos(angleRadians);\n const sin = Math.sin(angleRadians);\n if (isHorizontal) {\n const labelHeight = tickOpts.mirror ? 0 : sin * widest.width + cos * highest.height;\n minSize.height = Math.min(this.maxHeight, minSize.height + labelHeight + tickPadding);\n } else {\n const labelWidth = tickOpts.mirror ? 0 : cos * widest.width + sin * highest.height;\n minSize.width = Math.min(this.maxWidth, minSize.width + labelWidth + tickPadding);\n }\n this._calculatePadding(first, last, sin, cos);\n }\n }\n this._handleMargins();\n if (isHorizontal) {\n this.width = this._length = chart.width - this._margins.left - this._margins.right;\n this.height = minSize.height;\n } else {\n this.width = minSize.width;\n this.height = this._length = chart.height - this._margins.top - this._margins.bottom;\n }\n }\n _calculatePadding(first, last, sin, cos) {\n const { ticks: { align , padding } , position } = this.options;\n const isRotated = this.labelRotation !== 0;\n const labelsBelowTicks = position !== 'top' && this.axis === 'x';\n if (this.isHorizontal()) {\n const offsetLeft = this.getPixelForTick(0) - this.left;\n const offsetRight = this.right - this.getPixelForTick(this.ticks.length - 1);\n let paddingLeft = 0;\n let paddingRight = 0;\n if (isRotated) {\n if (labelsBelowTicks) {\n paddingLeft = cos * first.width;\n paddingRight = sin * last.height;\n } else {\n paddingLeft = sin * first.height;\n paddingRight = cos * last.width;\n }\n } else if (align === 'start') {\n paddingRight = last.width;\n } else if (align === 'end') {\n paddingLeft = first.width;\n } else if (align !== 'inner') {\n paddingLeft = first.width / 2;\n paddingRight = last.width / 2;\n }\n this.paddingLeft = Math.max((paddingLeft - offsetLeft + padding) * this.width / (this.width - offsetLeft), 0);\n this.paddingRight = Math.max((paddingRight - offsetRight + padding) * this.width / (this.width - offsetRight), 0);\n } else {\n let paddingTop = last.height / 2;\n let paddingBottom = first.height / 2;\n if (align === 'start') {\n paddingTop = 0;\n paddingBottom = first.height;\n } else if (align === 'end') {\n paddingTop = last.height;\n paddingBottom = 0;\n }\n this.paddingTop = paddingTop + padding;\n this.paddingBottom = paddingBottom + padding;\n }\n }\n _handleMargins() {\n if (this._margins) {\n this._margins.left = Math.max(this.paddingLeft, this._margins.left);\n this._margins.top = Math.max(this.paddingTop, this._margins.top);\n this._margins.right = Math.max(this.paddingRight, this._margins.right);\n this._margins.bottom = Math.max(this.paddingBottom, this._margins.bottom);\n }\n }\n afterFit() {\n callback(this.options.afterFit, [\n this\n ]);\n }\n isHorizontal() {\n const { axis , position } = this.options;\n return position === 'top' || position === 'bottom' || axis === 'x';\n }\n isFullSize() {\n return this.options.fullSize;\n }\n _convertTicksToLabels(ticks) {\n this.beforeTickToLabelConversion();\n this.generateTickLabels(ticks);\n let i, ilen;\n for(i = 0, ilen = ticks.length; i < ilen; i++){\n if (isNullOrUndef(ticks[i].label)) {\n ticks.splice(i, 1);\n ilen--;\n i--;\n }\n }\n this.afterTickToLabelConversion();\n }\n _getLabelSizes() {\n let labelSizes = this._labelSizes;\n if (!labelSizes) {\n const sampleSize = this.options.ticks.sampleSize;\n let ticks = this.ticks;\n if (sampleSize < ticks.length) {\n ticks = sample(ticks, sampleSize);\n }\n this._labelSizes = labelSizes = this._computeLabelSizes(ticks, ticks.length, this.options.ticks.maxTicksLimit);\n }\n return labelSizes;\n }\n _computeLabelSizes(ticks, length, maxTicksLimit) {\n const { ctx , _longestTextCache: caches } = this;\n const widths = [];\n const heights = [];\n const increment = Math.floor(length / getTicksLimit(length, maxTicksLimit));\n let widestLabelSize = 0;\n let highestLabelSize = 0;\n let i, j, jlen, label, tickFont, fontString, cache, lineHeight, width, height, nestedLabel;\n for(i = 0; i < length; i += increment){\n label = ticks[i].label;\n tickFont = this._resolveTickFontOptions(i);\n ctx.font = fontString = tickFont.string;\n cache = caches[fontString] = caches[fontString] || {\n data: {},\n gc: []\n };\n lineHeight = tickFont.lineHeight;\n width = height = 0;\n if (!isNullOrUndef(label) && !isArray(label)) {\n width = _measureText(ctx, cache.data, cache.gc, width, label);\n height = lineHeight;\n } else if (isArray(label)) {\n for(j = 0, jlen = label.length; j < jlen; ++j){\n nestedLabel = label[j];\n if (!isNullOrUndef(nestedLabel) && !isArray(nestedLabel)) {\n width = _measureText(ctx, cache.data, cache.gc, width, nestedLabel);\n height += lineHeight;\n }\n }\n }\n widths.push(width);\n heights.push(height);\n widestLabelSize = Math.max(width, widestLabelSize);\n highestLabelSize = Math.max(height, highestLabelSize);\n }\n garbageCollect(caches, length);\n const widest = widths.indexOf(widestLabelSize);\n const highest = heights.indexOf(highestLabelSize);\n const valueAt = (idx)=>({\n width: widths[idx] || 0,\n height: heights[idx] || 0\n });\n return {\n first: valueAt(0),\n last: valueAt(length - 1),\n widest: valueAt(widest),\n highest: valueAt(highest),\n widths,\n heights\n };\n }\n getLabelForValue(value) {\n return value;\n }\n getPixelForValue(value, index) {\n return NaN;\n }\n getValueForPixel(pixel) {}\n getPixelForTick(index) {\n const ticks = this.ticks;\n if (index < 0 || index > ticks.length - 1) {\n return null;\n }\n return this.getPixelForValue(ticks[index].value);\n }\n getPixelForDecimal(decimal) {\n if (this._reversePixels) {\n decimal = 1 - decimal;\n }\n const pixel = this._startPixel + decimal * this._length;\n return _int16Range(this._alignToPixels ? _alignPixel(this.chart, pixel, 0) : pixel);\n }\n getDecimalForPixel(pixel) {\n const decimal = (pixel - this._startPixel) / this._length;\n return this._reversePixels ? 1 - decimal : decimal;\n }\n getBasePixel() {\n return this.getPixelForValue(this.getBaseValue());\n }\n getBaseValue() {\n const { min , max } = this;\n return min < 0 && max < 0 ? max : min > 0 && max > 0 ? min : 0;\n }\n getContext(index) {\n const ticks = this.ticks || [];\n if (index >= 0 && index < ticks.length) {\n const tick = ticks[index];\n return tick.$context || (tick.$context = createTickContext(this.getContext(), index, tick));\n }\n return this.$context || (this.$context = createScaleContext(this.chart.getContext(), this));\n }\n _tickSize() {\n const optionTicks = this.options.ticks;\n const rot = toRadians(this.labelRotation);\n const cos = Math.abs(Math.cos(rot));\n const sin = Math.abs(Math.sin(rot));\n const labelSizes = this._getLabelSizes();\n const padding = optionTicks.autoSkipPadding || 0;\n const w = labelSizes ? labelSizes.widest.width + padding : 0;\n const h = labelSizes ? labelSizes.highest.height + padding : 0;\n return this.isHorizontal() ? h * cos > w * sin ? w / cos : h / sin : h * sin < w * cos ? h / cos : w / sin;\n }\n _isVisible() {\n const display = this.options.display;\n if (display !== 'auto') {\n return !!display;\n }\n return this.getMatchingVisibleMetas().length > 0;\n }\n _computeGridLineItems(chartArea) {\n const axis = this.axis;\n const chart = this.chart;\n const options = this.options;\n const { grid , position , border } = options;\n const offset = grid.offset;\n const isHorizontal = this.isHorizontal();\n const ticks = this.ticks;\n const ticksLength = ticks.length + (offset ? 1 : 0);\n const tl = getTickMarkLength(grid);\n const items = [];\n const borderOpts = border.setContext(this.getContext());\n const axisWidth = borderOpts.display ? borderOpts.width : 0;\n const axisHalfWidth = axisWidth / 2;\n const alignBorderValue = function(pixel) {\n return _alignPixel(chart, pixel, axisWidth);\n };\n let borderValue, i, lineValue, alignedLineValue;\n let tx1, ty1, tx2, ty2, x1, y1, x2, y2;\n if (position === 'top') {\n borderValue = alignBorderValue(this.bottom);\n ty1 = this.bottom - tl;\n ty2 = borderValue - axisHalfWidth;\n y1 = alignBorderValue(chartArea.top) + axisHalfWidth;\n y2 = chartArea.bottom;\n } else if (position === 'bottom') {\n borderValue = alignBorderValue(this.top);\n y1 = chartArea.top;\n y2 = alignBorderValue(chartArea.bottom) - axisHalfWidth;\n ty1 = borderValue + axisHalfWidth;\n ty2 = this.top + tl;\n } else if (position === 'left') {\n borderValue = alignBorderValue(this.right);\n tx1 = this.right - tl;\n tx2 = borderValue - axisHalfWidth;\n x1 = alignBorderValue(chartArea.left) + axisHalfWidth;\n x2 = chartArea.right;\n } else if (position === 'right') {\n borderValue = alignBorderValue(this.left);\n x1 = chartArea.left;\n x2 = alignBorderValue(chartArea.right) - axisHalfWidth;\n tx1 = borderValue + axisHalfWidth;\n tx2 = this.left + tl;\n } else if (axis === 'x') {\n if (position === 'center') {\n borderValue = alignBorderValue((chartArea.top + chartArea.bottom) / 2 + 0.5);\n } else if (isObject(position)) {\n const positionAxisID = Object.keys(position)[0];\n const value = position[positionAxisID];\n borderValue = alignBorderValue(this.chart.scales[positionAxisID].getPixelForValue(value));\n }\n y1 = chartArea.top;\n y2 = chartArea.bottom;\n ty1 = borderValue + axisHalfWidth;\n ty2 = ty1 + tl;\n } else if (axis === 'y') {\n if (position === 'center') {\n borderValue = alignBorderValue((chartArea.left + chartArea.right) / 2);\n } else if (isObject(position)) {\n const positionAxisID1 = Object.keys(position)[0];\n const value1 = position[positionAxisID1];\n borderValue = alignBorderValue(this.chart.scales[positionAxisID1].getPixelForValue(value1));\n }\n tx1 = borderValue - axisHalfWidth;\n tx2 = tx1 - tl;\n x1 = chartArea.left;\n x2 = chartArea.right;\n }\n const limit = valueOrDefault(options.ticks.maxTicksLimit, ticksLength);\n const step = Math.max(1, Math.ceil(ticksLength / limit));\n for(i = 0; i < ticksLength; i += step){\n const context = this.getContext(i);\n const optsAtIndex = grid.setContext(context);\n const optsAtIndexBorder = border.setContext(context);\n const lineWidth = optsAtIndex.lineWidth;\n const lineColor = optsAtIndex.color;\n const borderDash = optsAtIndexBorder.dash || [];\n const borderDashOffset = optsAtIndexBorder.dashOffset;\n const tickWidth = optsAtIndex.tickWidth;\n const tickColor = optsAtIndex.tickColor;\n const tickBorderDash = optsAtIndex.tickBorderDash || [];\n const tickBorderDashOffset = optsAtIndex.tickBorderDashOffset;\n lineValue = getPixelForGridLine(this, i, offset);\n if (lineValue === undefined) {\n continue;\n }\n alignedLineValue = _alignPixel(chart, lineValue, lineWidth);\n if (isHorizontal) {\n tx1 = tx2 = x1 = x2 = alignedLineValue;\n } else {\n ty1 = ty2 = y1 = y2 = alignedLineValue;\n }\n items.push({\n tx1,\n ty1,\n tx2,\n ty2,\n x1,\n y1,\n x2,\n y2,\n width: lineWidth,\n color: lineColor,\n borderDash,\n borderDashOffset,\n tickWidth,\n tickColor,\n tickBorderDash,\n tickBorderDashOffset\n });\n }\n this._ticksLength = ticksLength;\n this._borderValue = borderValue;\n return items;\n }\n _computeLabelItems(chartArea) {\n const axis = this.axis;\n const options = this.options;\n const { position , ticks: optionTicks } = options;\n const isHorizontal = this.isHorizontal();\n const ticks = this.ticks;\n const { align , crossAlign , padding , mirror } = optionTicks;\n const tl = getTickMarkLength(options.grid);\n const tickAndPadding = tl + padding;\n const hTickAndPadding = mirror ? -padding : tickAndPadding;\n const rotation = -toRadians(this.labelRotation);\n const items = [];\n let i, ilen, tick, label, x, y, textAlign, pixel, font, lineHeight, lineCount, textOffset;\n let textBaseline = 'middle';\n if (position === 'top') {\n y = this.bottom - hTickAndPadding;\n textAlign = this._getXAxisLabelAlignment();\n } else if (position === 'bottom') {\n y = this.top + hTickAndPadding;\n textAlign = this._getXAxisLabelAlignment();\n } else if (position === 'left') {\n const ret = this._getYAxisLabelAlignment(tl);\n textAlign = ret.textAlign;\n x = ret.x;\n } else if (position === 'right') {\n const ret1 = this._getYAxisLabelAlignment(tl);\n textAlign = ret1.textAlign;\n x = ret1.x;\n } else if (axis === 'x') {\n if (position === 'center') {\n y = (chartArea.top + chartArea.bottom) / 2 + tickAndPadding;\n } else if (isObject(position)) {\n const positionAxisID = Object.keys(position)[0];\n const value = position[positionAxisID];\n y = this.chart.scales[positionAxisID].getPixelForValue(value) + tickAndPadding;\n }\n textAlign = this._getXAxisLabelAlignment();\n } else if (axis === 'y') {\n if (position === 'center') {\n x = (chartArea.left + chartArea.right) / 2 - tickAndPadding;\n } else if (isObject(position)) {\n const positionAxisID1 = Object.keys(position)[0];\n const value1 = position[positionAxisID1];\n x = this.chart.scales[positionAxisID1].getPixelForValue(value1);\n }\n textAlign = this._getYAxisLabelAlignment(tl).textAlign;\n }\n if (axis === 'y') {\n if (align === 'start') {\n textBaseline = 'top';\n } else if (align === 'end') {\n textBaseline = 'bottom';\n }\n }\n const labelSizes = this._getLabelSizes();\n for(i = 0, ilen = ticks.length; i < ilen; ++i){\n tick = ticks[i];\n label = tick.label;\n const optsAtIndex = optionTicks.setContext(this.getContext(i));\n pixel = this.getPixelForTick(i) + optionTicks.labelOffset;\n font = this._resolveTickFontOptions(i);\n lineHeight = font.lineHeight;\n lineCount = isArray(label) ? label.length : 1;\n const halfCount = lineCount / 2;\n const color = optsAtIndex.color;\n const strokeColor = optsAtIndex.textStrokeColor;\n const strokeWidth = optsAtIndex.textStrokeWidth;\n let tickTextAlign = textAlign;\n if (isHorizontal) {\n x = pixel;\n if (textAlign === 'inner') {\n if (i === ilen - 1) {\n tickTextAlign = !this.options.reverse ? 'right' : 'left';\n } else if (i === 0) {\n tickTextAlign = !this.options.reverse ? 'left' : 'right';\n } else {\n tickTextAlign = 'center';\n }\n }\n if (position === 'top') {\n if (crossAlign === 'near' || rotation !== 0) {\n textOffset = -lineCount * lineHeight + lineHeight / 2;\n } else if (crossAlign === 'center') {\n textOffset = -labelSizes.highest.height / 2 - halfCount * lineHeight + lineHeight;\n } else {\n textOffset = -labelSizes.highest.height + lineHeight / 2;\n }\n } else {\n if (crossAlign === 'near' || rotation !== 0) {\n textOffset = lineHeight / 2;\n } else if (crossAlign === 'center') {\n textOffset = labelSizes.highest.height / 2 - halfCount * lineHeight;\n } else {\n textOffset = labelSizes.highest.height - lineCount * lineHeight;\n }\n }\n if (mirror) {\n textOffset *= -1;\n }\n if (rotation !== 0 && !optsAtIndex.showLabelBackdrop) {\n x += lineHeight / 2 * Math.sin(rotation);\n }\n } else {\n y = pixel;\n textOffset = (1 - lineCount) * lineHeight / 2;\n }\n let backdrop;\n if (optsAtIndex.showLabelBackdrop) {\n const labelPadding = toPadding(optsAtIndex.backdropPadding);\n const height = labelSizes.heights[i];\n const width = labelSizes.widths[i];\n let top = textOffset - labelPadding.top;\n let left = 0 - labelPadding.left;\n switch(textBaseline){\n case 'middle':\n top -= height / 2;\n break;\n case 'bottom':\n top -= height;\n break;\n }\n switch(textAlign){\n case 'center':\n left -= width / 2;\n break;\n case 'right':\n left -= width;\n break;\n }\n backdrop = {\n left,\n top,\n width: width + labelPadding.width,\n height: height + labelPadding.height,\n color: optsAtIndex.backdropColor\n };\n }\n items.push({\n label,\n font,\n textOffset,\n options: {\n rotation,\n color,\n strokeColor,\n strokeWidth,\n textAlign: tickTextAlign,\n textBaseline,\n translation: [\n x,\n y\n ],\n backdrop\n }\n });\n }\n return items;\n }\n _getXAxisLabelAlignment() {\n const { position , ticks } = this.options;\n const rotation = -toRadians(this.labelRotation);\n if (rotation) {\n return position === 'top' ? 'left' : 'right';\n }\n let align = 'center';\n if (ticks.align === 'start') {\n align = 'left';\n } else if (ticks.align === 'end') {\n align = 'right';\n } else if (ticks.align === 'inner') {\n align = 'inner';\n }\n return align;\n }\n _getYAxisLabelAlignment(tl) {\n const { position , ticks: { crossAlign , mirror , padding } } = this.options;\n const labelSizes = this._getLabelSizes();\n const tickAndPadding = tl + padding;\n const widest = labelSizes.widest.width;\n let textAlign;\n let x;\n if (position === 'left') {\n if (mirror) {\n x = this.right + padding;\n if (crossAlign === 'near') {\n textAlign = 'left';\n } else if (crossAlign === 'center') {\n textAlign = 'center';\n x += widest / 2;\n } else {\n textAlign = 'right';\n x += widest;\n }\n } else {\n x = this.right - tickAndPadding;\n if (crossAlign === 'near') {\n textAlign = 'right';\n } else if (crossAlign === 'center') {\n textAlign = 'center';\n x -= widest / 2;\n } else {\n textAlign = 'left';\n x = this.left;\n }\n }\n } else if (position === 'right') {\n if (mirror) {\n x = this.left + padding;\n if (crossAlign === 'near') {\n textAlign = 'right';\n } else if (crossAlign === 'center') {\n textAlign = 'center';\n x -= widest / 2;\n } else {\n textAlign = 'left';\n x -= widest;\n }\n } else {\n x = this.left + tickAndPadding;\n if (crossAlign === 'near') {\n textAlign = 'left';\n } else if (crossAlign === 'center') {\n textAlign = 'center';\n x += widest / 2;\n } else {\n textAlign = 'right';\n x = this.right;\n }\n }\n } else {\n textAlign = 'right';\n }\n return {\n textAlign,\n x\n };\n }\n _computeLabelArea() {\n if (this.options.ticks.mirror) {\n return;\n }\n const chart = this.chart;\n const position = this.options.position;\n if (position === 'left' || position === 'right') {\n return {\n top: 0,\n left: this.left,\n bottom: chart.height,\n right: this.right\n };\n }\n if (position === 'top' || position === 'bottom') {\n return {\n top: this.top,\n left: 0,\n bottom: this.bottom,\n right: chart.width\n };\n }\n }\n drawBackground() {\n const { ctx , options: { backgroundColor } , left , top , width , height } = this;\n if (backgroundColor) {\n ctx.save();\n ctx.fillStyle = backgroundColor;\n ctx.fillRect(left, top, width, height);\n ctx.restore();\n }\n }\n getLineWidthForValue(value) {\n const grid = this.options.grid;\n if (!this._isVisible() || !grid.display) {\n return 0;\n }\n const ticks = this.ticks;\n const index = ticks.findIndex((t)=>t.value === value);\n if (index >= 0) {\n const opts = grid.setContext(this.getContext(index));\n return opts.lineWidth;\n }\n return 0;\n }\n drawGrid(chartArea) {\n const grid = this.options.grid;\n const ctx = this.ctx;\n const items = this._gridLineItems || (this._gridLineItems = this._computeGridLineItems(chartArea));\n let i, ilen;\n const drawLine = (p1, p2, style)=>{\n if (!style.width || !style.color) {\n return;\n }\n ctx.save();\n ctx.lineWidth = style.width;\n ctx.strokeStyle = style.color;\n ctx.setLineDash(style.borderDash || []);\n ctx.lineDashOffset = style.borderDashOffset;\n ctx.beginPath();\n ctx.moveTo(p1.x, p1.y);\n ctx.lineTo(p2.x, p2.y);\n ctx.stroke();\n ctx.restore();\n };\n if (grid.display) {\n for(i = 0, ilen = items.length; i < ilen; ++i){\n const item = items[i];\n if (grid.drawOnChartArea) {\n drawLine({\n x: item.x1,\n y: item.y1\n }, {\n x: item.x2,\n y: item.y2\n }, item);\n }\n if (grid.drawTicks) {\n drawLine({\n x: item.tx1,\n y: item.ty1\n }, {\n x: item.tx2,\n y: item.ty2\n }, {\n color: item.tickColor,\n width: item.tickWidth,\n borderDash: item.tickBorderDash,\n borderDashOffset: item.tickBorderDashOffset\n });\n }\n }\n }\n }\n drawBorder() {\n const { chart , ctx , options: { border , grid } } = this;\n const borderOpts = border.setContext(this.getContext());\n const axisWidth = border.display ? borderOpts.width : 0;\n if (!axisWidth) {\n return;\n }\n const lastLineWidth = grid.setContext(this.getContext(0)).lineWidth;\n const borderValue = this._borderValue;\n let x1, x2, y1, y2;\n if (this.isHorizontal()) {\n x1 = _alignPixel(chart, this.left, axisWidth) - axisWidth / 2;\n x2 = _alignPixel(chart, this.right, lastLineWidth) + lastLineWidth / 2;\n y1 = y2 = borderValue;\n } else {\n y1 = _alignPixel(chart, this.top, axisWidth) - axisWidth / 2;\n y2 = _alignPixel(chart, this.bottom, lastLineWidth) + lastLineWidth / 2;\n x1 = x2 = borderValue;\n }\n ctx.save();\n ctx.lineWidth = borderOpts.width;\n ctx.strokeStyle = borderOpts.color;\n ctx.beginPath();\n ctx.moveTo(x1, y1);\n ctx.lineTo(x2, y2);\n ctx.stroke();\n ctx.restore();\n }\n drawLabels(chartArea) {\n const optionTicks = this.options.ticks;\n if (!optionTicks.display) {\n return;\n }\n const ctx = this.ctx;\n const area = this._computeLabelArea();\n if (area) {\n clipArea(ctx, area);\n }\n const items = this.getLabelItems(chartArea);\n for (const item of items){\n const renderTextOptions = item.options;\n const tickFont = item.font;\n const label = item.label;\n const y = item.textOffset;\n renderText(ctx, label, 0, y, tickFont, renderTextOptions);\n }\n if (area) {\n unclipArea(ctx);\n }\n }\n drawTitle() {\n const { ctx , options: { position , title , reverse } } = this;\n if (!title.display) {\n return;\n }\n const font = toFont(title.font);\n const padding = toPadding(title.padding);\n const align = title.align;\n let offset = font.lineHeight / 2;\n if (position === 'bottom' || position === 'center' || isObject(position)) {\n offset += padding.bottom;\n if (isArray(title.text)) {\n offset += font.lineHeight * (title.text.length - 1);\n }\n } else {\n offset += padding.top;\n }\n const { titleX , titleY , maxWidth , rotation } = titleArgs(this, offset, position, align);\n renderText(ctx, title.text, 0, 0, font, {\n color: title.color,\n maxWidth,\n rotation,\n textAlign: titleAlign(align, position, reverse),\n textBaseline: 'middle',\n translation: [\n titleX,\n titleY\n ]\n });\n }\n draw(chartArea) {\n if (!this._isVisible()) {\n return;\n }\n this.drawBackground();\n this.drawGrid(chartArea);\n this.drawBorder();\n this.drawTitle();\n this.drawLabels(chartArea);\n }\n _layers() {\n const opts = this.options;\n const tz = opts.ticks && opts.ticks.z || 0;\n const gz = valueOrDefault(opts.grid && opts.grid.z, -1);\n const bz = valueOrDefault(opts.border && opts.border.z, 0);\n if (!this._isVisible() || this.draw !== Scale.prototype.draw) {\n return [\n {\n z: tz,\n draw: (chartArea)=>{\n this.draw(chartArea);\n }\n }\n ];\n }\n return [\n {\n z: gz,\n draw: (chartArea)=>{\n this.drawBackground();\n this.drawGrid(chartArea);\n this.drawTitle();\n }\n },\n {\n z: bz,\n draw: ()=>{\n this.drawBorder();\n }\n },\n {\n z: tz,\n draw: (chartArea)=>{\n this.drawLabels(chartArea);\n }\n }\n ];\n }\n getMatchingVisibleMetas(type) {\n const metas = this.chart.getSortedVisibleDatasetMetas();\n const axisID = this.axis + 'AxisID';\n const result = [];\n let i, ilen;\n for(i = 0, ilen = metas.length; i < ilen; ++i){\n const meta = metas[i];\n if (meta[axisID] === this.id && (!type || meta.type === type)) {\n result.push(meta);\n }\n }\n return result;\n }\n _resolveTickFontOptions(index) {\n const opts = this.options.ticks.setContext(this.getContext(index));\n return toFont(opts.font);\n }\n _maxDigits() {\n const fontSize = this._resolveTickFontOptions(0).lineHeight;\n return (this.isHorizontal() ? this.width : this.height) / fontSize;\n }\n}\n\nclass TypedRegistry {\n constructor(type, scope, override){\n this.type = type;\n this.scope = scope;\n this.override = override;\n this.items = Object.create(null);\n }\n isForType(type) {\n return Object.prototype.isPrototypeOf.call(this.type.prototype, type.prototype);\n }\n register(item) {\n const proto = Object.getPrototypeOf(item);\n let parentScope;\n if (isIChartComponent(proto)) {\n parentScope = this.register(proto);\n }\n const items = this.items;\n const id = item.id;\n const scope = this.scope + '.' + id;\n if (!id) {\n throw new Error('class does not have id: ' + item);\n }\n if (id in items) {\n return scope;\n }\n items[id] = item;\n registerDefaults(item, scope, parentScope);\n if (this.override) {\n defaults.override(item.id, item.overrides);\n }\n return scope;\n }\n get(id) {\n return this.items[id];\n }\n unregister(item) {\n const items = this.items;\n const id = item.id;\n const scope = this.scope;\n if (id in items) {\n delete items[id];\n }\n if (scope && id in defaults[scope]) {\n delete defaults[scope][id];\n if (this.override) {\n delete overrides[id];\n }\n }\n }\n}\nfunction registerDefaults(item, scope, parentScope) {\n const itemDefaults = merge(Object.create(null), [\n parentScope ? defaults.get(parentScope) : {},\n defaults.get(scope),\n item.defaults\n ]);\n defaults.set(scope, itemDefaults);\n if (item.defaultRoutes) {\n routeDefaults(scope, item.defaultRoutes);\n }\n if (item.descriptors) {\n defaults.describe(scope, item.descriptors);\n }\n}\nfunction routeDefaults(scope, routes) {\n Object.keys(routes).forEach((property)=>{\n const propertyParts = property.split('.');\n const sourceName = propertyParts.pop();\n const sourceScope = [\n scope\n ].concat(propertyParts).join('.');\n const parts = routes[property].split('.');\n const targetName = parts.pop();\n const targetScope = parts.join('.');\n defaults.route(sourceScope, sourceName, targetScope, targetName);\n });\n}\nfunction isIChartComponent(proto) {\n return 'id' in proto && 'defaults' in proto;\n}\n\nclass Registry {\n constructor(){\n this.controllers = new TypedRegistry(DatasetController, 'datasets', true);\n this.elements = new TypedRegistry(Element, 'elements');\n this.plugins = new TypedRegistry(Object, 'plugins');\n this.scales = new TypedRegistry(Scale, 'scales');\n this._typedRegistries = [\n this.controllers,\n this.scales,\n this.elements\n ];\n }\n add(...args) {\n this._each('register', args);\n }\n remove(...args) {\n this._each('unregister', args);\n }\n addControllers(...args) {\n this._each('register', args, this.controllers);\n }\n addElements(...args) {\n this._each('register', args, this.elements);\n }\n addPlugins(...args) {\n this._each('register', args, this.plugins);\n }\n addScales(...args) {\n this._each('register', args, this.scales);\n }\n getController(id) {\n return this._get(id, this.controllers, 'controller');\n }\n getElement(id) {\n return this._get(id, this.elements, 'element');\n }\n getPlugin(id) {\n return this._get(id, this.plugins, 'plugin');\n }\n getScale(id) {\n return this._get(id, this.scales, 'scale');\n }\n removeControllers(...args) {\n this._each('unregister', args, this.controllers);\n }\n removeElements(...args) {\n this._each('unregister', args, this.elements);\n }\n removePlugins(...args) {\n this._each('unregister', args, this.plugins);\n }\n removeScales(...args) {\n this._each('unregister', args, this.scales);\n }\n _each(method, args, typedRegistry) {\n [\n ...args\n ].forEach((arg)=>{\n const reg = typedRegistry || this._getRegistryForType(arg);\n if (typedRegistry || reg.isForType(arg) || reg === this.plugins && arg.id) {\n this._exec(method, reg, arg);\n } else {\n each(arg, (item)=>{\n const itemReg = typedRegistry || this._getRegistryForType(item);\n this._exec(method, itemReg, item);\n });\n }\n });\n }\n _exec(method, registry, component) {\n const camelMethod = _capitalize(method);\n callback(component['before' + camelMethod], [], component);\n registry[method](component);\n callback(component['after' + camelMethod], [], component);\n }\n _getRegistryForType(type) {\n for(let i = 0; i < this._typedRegistries.length; i++){\n const reg = this._typedRegistries[i];\n if (reg.isForType(type)) {\n return reg;\n }\n }\n return this.plugins;\n }\n _get(id, typedRegistry, type) {\n const item = typedRegistry.get(id);\n if (item === undefined) {\n throw new Error('\"' + id + '\" is not a registered ' + type + '.');\n }\n return item;\n }\n}\nvar registry = /* #__PURE__ */ new Registry();\n\nclass PluginService {\n constructor(){\n this._init = [];\n }\n notify(chart, hook, args, filter) {\n if (hook === 'beforeInit') {\n this._init = this._createDescriptors(chart, true);\n this._notify(this._init, chart, 'install');\n }\n const descriptors = filter ? this._descriptors(chart).filter(filter) : this._descriptors(chart);\n const result = this._notify(descriptors, chart, hook, args);\n if (hook === 'afterDestroy') {\n this._notify(descriptors, chart, 'stop');\n this._notify(this._init, chart, 'uninstall');\n }\n return result;\n }\n _notify(descriptors, chart, hook, args) {\n args = args || {};\n for (const descriptor of descriptors){\n const plugin = descriptor.plugin;\n const method = plugin[hook];\n const params = [\n chart,\n args,\n descriptor.options\n ];\n if (callback(method, params, plugin) === false && args.cancelable) {\n return false;\n }\n }\n return true;\n }\n invalidate() {\n if (!isNullOrUndef(this._cache)) {\n this._oldCache = this._cache;\n this._cache = undefined;\n }\n }\n _descriptors(chart) {\n if (this._cache) {\n return this._cache;\n }\n const descriptors = this._cache = this._createDescriptors(chart);\n this._notifyStateChanges(chart);\n return descriptors;\n }\n _createDescriptors(chart, all) {\n const config = chart && chart.config;\n const options = valueOrDefault(config.options && config.options.plugins, {});\n const plugins = allPlugins(config);\n return options === false && !all ? [] : createDescriptors(chart, plugins, options, all);\n }\n _notifyStateChanges(chart) {\n const previousDescriptors = this._oldCache || [];\n const descriptors = this._cache;\n const diff = (a, b)=>a.filter((x)=>!b.some((y)=>x.plugin.id === y.plugin.id));\n this._notify(diff(previousDescriptors, descriptors), chart, 'stop');\n this._notify(diff(descriptors, previousDescriptors), chart, 'start');\n }\n}\n function allPlugins(config) {\n const localIds = {};\n const plugins = [];\n const keys = Object.keys(registry.plugins.items);\n for(let i = 0; i < keys.length; i++){\n plugins.push(registry.getPlugin(keys[i]));\n }\n const local = config.plugins || [];\n for(let i1 = 0; i1 < local.length; i1++){\n const plugin = local[i1];\n if (plugins.indexOf(plugin) === -1) {\n plugins.push(plugin);\n localIds[plugin.id] = true;\n }\n }\n return {\n plugins,\n localIds\n };\n}\nfunction getOpts(options, all) {\n if (!all && options === false) {\n return null;\n }\n if (options === true) {\n return {};\n }\n return options;\n}\nfunction createDescriptors(chart, { plugins , localIds }, options, all) {\n const result = [];\n const context = chart.getContext();\n for (const plugin of plugins){\n const id = plugin.id;\n const opts = getOpts(options[id], all);\n if (opts === null) {\n continue;\n }\n result.push({\n plugin,\n options: pluginOpts(chart.config, {\n plugin,\n local: localIds[id]\n }, opts, context)\n });\n }\n return result;\n}\nfunction pluginOpts(config, { plugin , local }, opts, context) {\n const keys = config.pluginScopeKeys(plugin);\n const scopes = config.getOptionScopes(opts, keys);\n if (local && plugin.defaults) {\n scopes.push(plugin.defaults);\n }\n return config.createResolver(scopes, context, [\n ''\n ], {\n scriptable: false,\n indexable: false,\n allKeys: true\n });\n}\n\nfunction getIndexAxis(type, options) {\n const datasetDefaults = defaults.datasets[type] || {};\n const datasetOptions = (options.datasets || {})[type] || {};\n return datasetOptions.indexAxis || options.indexAxis || datasetDefaults.indexAxis || 'x';\n}\nfunction getAxisFromDefaultScaleID(id, indexAxis) {\n let axis = id;\n if (id === '_index_') {\n axis = indexAxis;\n } else if (id === '_value_') {\n axis = indexAxis === 'x' ? 'y' : 'x';\n }\n return axis;\n}\nfunction getDefaultScaleIDFromAxis(axis, indexAxis) {\n return axis === indexAxis ? '_index_' : '_value_';\n}\nfunction axisFromPosition(position) {\n if (position === 'top' || position === 'bottom') {\n return 'x';\n }\n if (position === 'left' || position === 'right') {\n return 'y';\n }\n}\nfunction determineAxis(id, scaleOptions) {\n if (id === 'x' || id === 'y' || id === 'r') {\n return id;\n }\n id = scaleOptions.axis || axisFromPosition(scaleOptions.position) || id.length > 1 && determineAxis(id[0].toLowerCase(), scaleOptions);\n if (id) {\n return id;\n }\n throw new Error(`Cannot determine type of '${name}' axis. Please provide 'axis' or 'position' option.`);\n}\nfunction mergeScaleConfig(config, options) {\n const chartDefaults = overrides[config.type] || {\n scales: {}\n };\n const configScales = options.scales || {};\n const chartIndexAxis = getIndexAxis(config.type, options);\n const scales = Object.create(null);\n Object.keys(configScales).forEach((id)=>{\n const scaleConf = configScales[id];\n if (!isObject(scaleConf)) {\n return console.error(`Invalid scale configuration for scale: ${id}`);\n }\n if (scaleConf._proxy) {\n return console.warn(`Ignoring resolver passed as options for scale: ${id}`);\n }\n const axis = determineAxis(id, scaleConf);\n const defaultId = getDefaultScaleIDFromAxis(axis, chartIndexAxis);\n const defaultScaleOptions = chartDefaults.scales || {};\n scales[id] = mergeIf(Object.create(null), [\n {\n axis\n },\n scaleConf,\n defaultScaleOptions[axis],\n defaultScaleOptions[defaultId]\n ]);\n });\n config.data.datasets.forEach((dataset)=>{\n const type = dataset.type || config.type;\n const indexAxis = dataset.indexAxis || getIndexAxis(type, options);\n const datasetDefaults = overrides[type] || {};\n const defaultScaleOptions = datasetDefaults.scales || {};\n Object.keys(defaultScaleOptions).forEach((defaultID)=>{\n const axis = getAxisFromDefaultScaleID(defaultID, indexAxis);\n const id = dataset[axis + 'AxisID'] || axis;\n scales[id] = scales[id] || Object.create(null);\n mergeIf(scales[id], [\n {\n axis\n },\n configScales[id],\n defaultScaleOptions[defaultID]\n ]);\n });\n });\n Object.keys(scales).forEach((key)=>{\n const scale = scales[key];\n mergeIf(scale, [\n defaults.scales[scale.type],\n defaults.scale\n ]);\n });\n return scales;\n}\nfunction initOptions(config) {\n const options = config.options || (config.options = {});\n options.plugins = valueOrDefault(options.plugins, {});\n options.scales = mergeScaleConfig(config, options);\n}\nfunction initData(data) {\n data = data || {};\n data.datasets = data.datasets || [];\n data.labels = data.labels || [];\n return data;\n}\nfunction initConfig(config) {\n config = config || {};\n config.data = initData(config.data);\n initOptions(config);\n return config;\n}\nconst keyCache = new Map();\nconst keysCached = new Set();\nfunction cachedKeys(cacheKey, generate) {\n let keys = keyCache.get(cacheKey);\n if (!keys) {\n keys = generate();\n keyCache.set(cacheKey, keys);\n keysCached.add(keys);\n }\n return keys;\n}\nconst addIfFound = (set, obj, key)=>{\n const opts = resolveObjectKey(obj, key);\n if (opts !== undefined) {\n set.add(opts);\n }\n};\nclass Config {\n constructor(config){\n this._config = initConfig(config);\n this._scopeCache = new Map();\n this._resolverCache = new Map();\n }\n get platform() {\n return this._config.platform;\n }\n get type() {\n return this._config.type;\n }\n set type(type) {\n this._config.type = type;\n }\n get data() {\n return this._config.data;\n }\n set data(data) {\n this._config.data = initData(data);\n }\n get options() {\n return this._config.options;\n }\n set options(options) {\n this._config.options = options;\n }\n get plugins() {\n return this._config.plugins;\n }\n update() {\n const config = this._config;\n this.clearCache();\n initOptions(config);\n }\n clearCache() {\n this._scopeCache.clear();\n this._resolverCache.clear();\n }\n datasetScopeKeys(datasetType) {\n return cachedKeys(datasetType, ()=>[\n [\n `datasets.${datasetType}`,\n ''\n ]\n ]);\n }\n datasetAnimationScopeKeys(datasetType, transition) {\n return cachedKeys(`${datasetType}.transition.${transition}`, ()=>[\n [\n `datasets.${datasetType}.transitions.${transition}`,\n `transitions.${transition}`\n ],\n [\n `datasets.${datasetType}`,\n ''\n ]\n ]);\n }\n datasetElementScopeKeys(datasetType, elementType) {\n return cachedKeys(`${datasetType}-${elementType}`, ()=>[\n [\n `datasets.${datasetType}.elements.${elementType}`,\n `datasets.${datasetType}`,\n `elements.${elementType}`,\n ''\n ]\n ]);\n }\n pluginScopeKeys(plugin) {\n const id = plugin.id;\n const type = this.type;\n return cachedKeys(`${type}-plugin-${id}`, ()=>[\n [\n `plugins.${id}`,\n ...plugin.additionalOptionScopes || []\n ]\n ]);\n }\n _cachedScopes(mainScope, resetCache) {\n const _scopeCache = this._scopeCache;\n let cache = _scopeCache.get(mainScope);\n if (!cache || resetCache) {\n cache = new Map();\n _scopeCache.set(mainScope, cache);\n }\n return cache;\n }\n getOptionScopes(mainScope, keyLists, resetCache) {\n const { options , type } = this;\n const cache = this._cachedScopes(mainScope, resetCache);\n const cached = cache.get(keyLists);\n if (cached) {\n return cached;\n }\n const scopes = new Set();\n keyLists.forEach((keys)=>{\n if (mainScope) {\n scopes.add(mainScope);\n keys.forEach((key)=>addIfFound(scopes, mainScope, key));\n }\n keys.forEach((key)=>addIfFound(scopes, options, key));\n keys.forEach((key)=>addIfFound(scopes, overrides[type] || {}, key));\n keys.forEach((key)=>addIfFound(scopes, defaults, key));\n keys.forEach((key)=>addIfFound(scopes, descriptors, key));\n });\n const array = Array.from(scopes);\n if (array.length === 0) {\n array.push(Object.create(null));\n }\n if (keysCached.has(keyLists)) {\n cache.set(keyLists, array);\n }\n return array;\n }\n chartOptionScopes() {\n const { options , type } = this;\n return [\n options,\n overrides[type] || {},\n defaults.datasets[type] || {},\n {\n type\n },\n defaults,\n descriptors\n ];\n }\n resolveNamedOptions(scopes, names, context, prefixes = [\n ''\n ]) {\n const result = {\n $shared: true\n };\n const { resolver , subPrefixes } = getResolver(this._resolverCache, scopes, prefixes);\n let options = resolver;\n if (needContext(resolver, names)) {\n result.$shared = false;\n context = isFunction(context) ? context() : context;\n const subResolver = this.createResolver(scopes, context, subPrefixes);\n options = _attachContext(resolver, context, subResolver);\n }\n for (const prop of names){\n result[prop] = options[prop];\n }\n return result;\n }\n createResolver(scopes, context, prefixes = [\n ''\n ], descriptorDefaults) {\n const { resolver } = getResolver(this._resolverCache, scopes, prefixes);\n return isObject(context) ? _attachContext(resolver, context, undefined, descriptorDefaults) : resolver;\n }\n}\nfunction getResolver(resolverCache, scopes, prefixes) {\n let cache = resolverCache.get(scopes);\n if (!cache) {\n cache = new Map();\n resolverCache.set(scopes, cache);\n }\n const cacheKey = prefixes.join();\n let cached = cache.get(cacheKey);\n if (!cached) {\n const resolver = _createResolver(scopes, prefixes);\n cached = {\n resolver,\n subPrefixes: prefixes.filter((p)=>!p.toLowerCase().includes('hover'))\n };\n cache.set(cacheKey, cached);\n }\n return cached;\n}\nconst hasFunction = (value)=>isObject(value) && Object.getOwnPropertyNames(value).reduce((acc, key)=>acc || isFunction(value[key]), false);\nfunction needContext(proxy, names) {\n const { isScriptable , isIndexable } = _descriptors(proxy);\n for (const prop of names){\n const scriptable = isScriptable(prop);\n const indexable = isIndexable(prop);\n const value = (indexable || scriptable) && proxy[prop];\n if (scriptable && (isFunction(value) || hasFunction(value)) || indexable && isArray(value)) {\n return true;\n }\n }\n return false;\n}\n\nvar version = \"4.2.1\";\n\nconst KNOWN_POSITIONS = [\n 'top',\n 'bottom',\n 'left',\n 'right',\n 'chartArea'\n];\nfunction positionIsHorizontal(position, axis) {\n return position === 'top' || position === 'bottom' || KNOWN_POSITIONS.indexOf(position) === -1 && axis === 'x';\n}\nfunction compare2Level(l1, l2) {\n return function(a, b) {\n return a[l1] === b[l1] ? a[l2] - b[l2] : a[l1] - b[l1];\n };\n}\nfunction onAnimationsComplete(context) {\n const chart = context.chart;\n const animationOptions = chart.options.animation;\n chart.notifyPlugins('afterRender');\n callback(animationOptions && animationOptions.onComplete, [\n context\n ], chart);\n}\nfunction onAnimationProgress(context) {\n const chart = context.chart;\n const animationOptions = chart.options.animation;\n callback(animationOptions && animationOptions.onProgress, [\n context\n ], chart);\n}\n function getCanvas(item) {\n if (_isDomSupported() && typeof item === 'string') {\n item = document.getElementById(item);\n } else if (item && item.length) {\n item = item[0];\n }\n if (item && item.canvas) {\n item = item.canvas;\n }\n return item;\n}\nconst instances = {};\nconst getChart = (key)=>{\n const canvas = getCanvas(key);\n return Object.values(instances).filter((c)=>c.canvas === canvas).pop();\n};\nfunction moveNumericKeys(obj, start, move) {\n const keys = Object.keys(obj);\n for (const key of keys){\n const intKey = +key;\n if (intKey >= start) {\n const value = obj[key];\n delete obj[key];\n if (move > 0 || intKey > start) {\n obj[intKey + move] = value;\n }\n }\n }\n}\n function determineLastEvent(e, lastEvent, inChartArea, isClick) {\n if (!inChartArea || e.type === 'mouseout') {\n return null;\n }\n if (isClick) {\n return lastEvent;\n }\n return e;\n}\nfunction getDatasetArea(meta) {\n const { xScale , yScale } = meta;\n if (xScale && yScale) {\n return {\n left: xScale.left,\n right: xScale.right,\n top: yScale.top,\n bottom: yScale.bottom\n };\n }\n}\nclass Chart {\n static defaults = defaults;\n static instances = instances;\n static overrides = overrides;\n static registry = registry;\n static version = version;\n static getChart = getChart;\n static register(...items) {\n registry.add(...items);\n invalidatePlugins();\n }\n static unregister(...items) {\n registry.remove(...items);\n invalidatePlugins();\n }\n constructor(item, userConfig){\n const config = this.config = new Config(userConfig);\n const initialCanvas = getCanvas(item);\n const existingChart = getChart(initialCanvas);\n if (existingChart) {\n throw new Error('Canvas is already in use. Chart with ID \\'' + existingChart.id + '\\'' + ' must be destroyed before the canvas with ID \\'' + existingChart.canvas.id + '\\' can be reused.');\n }\n const options = config.createResolver(config.chartOptionScopes(), this.getContext());\n this.platform = new (config.platform || _detectPlatform(initialCanvas))();\n this.platform.updateConfig(config);\n const context = this.platform.acquireContext(initialCanvas, options.aspectRatio);\n const canvas = context && context.canvas;\n const height = canvas && canvas.height;\n const width = canvas && canvas.width;\n this.id = uid();\n this.ctx = context;\n this.canvas = canvas;\n this.width = width;\n this.height = height;\n this._options = options;\n this._aspectRatio = this.aspectRatio;\n this._layers = [];\n this._metasets = [];\n this._stacks = undefined;\n this.boxes = [];\n this.currentDevicePixelRatio = undefined;\n this.chartArea = undefined;\n this._active = [];\n this._lastEvent = undefined;\n this._listeners = {};\n this._responsiveListeners = undefined;\n this._sortedMetasets = [];\n this.scales = {};\n this._plugins = new PluginService();\n this.$proxies = {};\n this._hiddenIndices = {};\n this.attached = false;\n this._animationsDisabled = undefined;\n this.$context = undefined;\n this._doResize = debounce((mode)=>this.update(mode), options.resizeDelay || 0);\n this._dataChanges = [];\n instances[this.id] = this;\n if (!context || !canvas) {\n console.error(\"Failed to create chart: can't acquire context from the given item\");\n return;\n }\n animator.listen(this, 'complete', onAnimationsComplete);\n animator.listen(this, 'progress', onAnimationProgress);\n this._initialize();\n if (this.attached) {\n this.update();\n }\n }\n get aspectRatio() {\n const { options: { aspectRatio , maintainAspectRatio } , width , height , _aspectRatio } = this;\n if (!isNullOrUndef(aspectRatio)) {\n return aspectRatio;\n }\n if (maintainAspectRatio && _aspectRatio) {\n return _aspectRatio;\n }\n return height ? width / height : null;\n }\n get data() {\n return this.config.data;\n }\n set data(data) {\n this.config.data = data;\n }\n get options() {\n return this._options;\n }\n set options(options) {\n this.config.options = options;\n }\n get registry() {\n return registry;\n }\n _initialize() {\n this.notifyPlugins('beforeInit');\n if (this.options.responsive) {\n this.resize();\n } else {\n retinaScale(this, this.options.devicePixelRatio);\n }\n this.bindEvents();\n this.notifyPlugins('afterInit');\n return this;\n }\n clear() {\n clearCanvas(this.canvas, this.ctx);\n return this;\n }\n stop() {\n animator.stop(this);\n return this;\n }\n resize(width, height) {\n if (!animator.running(this)) {\n this._resize(width, height);\n } else {\n this._resizeBeforeDraw = {\n width,\n height\n };\n }\n }\n _resize(width, height) {\n const options = this.options;\n const canvas = this.canvas;\n const aspectRatio = options.maintainAspectRatio && this.aspectRatio;\n const newSize = this.platform.getMaximumSize(canvas, width, height, aspectRatio);\n const newRatio = options.devicePixelRatio || this.platform.getDevicePixelRatio();\n const mode = this.width ? 'resize' : 'attach';\n this.width = newSize.width;\n this.height = newSize.height;\n this._aspectRatio = this.aspectRatio;\n if (!retinaScale(this, newRatio, true)) {\n return;\n }\n this.notifyPlugins('resize', {\n size: newSize\n });\n callback(options.onResize, [\n this,\n newSize\n ], this);\n if (this.attached) {\n if (this._doResize(mode)) {\n this.render();\n }\n }\n }\n ensureScalesHaveIDs() {\n const options = this.options;\n const scalesOptions = options.scales || {};\n each(scalesOptions, (axisOptions, axisID)=>{\n axisOptions.id = axisID;\n });\n }\n buildOrUpdateScales() {\n const options = this.options;\n const scaleOpts = options.scales;\n const scales = this.scales;\n const updated = Object.keys(scales).reduce((obj, id)=>{\n obj[id] = false;\n return obj;\n }, {});\n let items = [];\n if (scaleOpts) {\n items = items.concat(Object.keys(scaleOpts).map((id)=>{\n const scaleOptions = scaleOpts[id];\n const axis = determineAxis(id, scaleOptions);\n const isRadial = axis === 'r';\n const isHorizontal = axis === 'x';\n return {\n options: scaleOptions,\n dposition: isRadial ? 'chartArea' : isHorizontal ? 'bottom' : 'left',\n dtype: isRadial ? 'radialLinear' : isHorizontal ? 'category' : 'linear'\n };\n }));\n }\n each(items, (item)=>{\n const scaleOptions = item.options;\n const id = scaleOptions.id;\n const axis = determineAxis(id, scaleOptions);\n const scaleType = valueOrDefault(scaleOptions.type, item.dtype);\n if (scaleOptions.position === undefined || positionIsHorizontal(scaleOptions.position, axis) !== positionIsHorizontal(item.dposition)) {\n scaleOptions.position = item.dposition;\n }\n updated[id] = true;\n let scale = null;\n if (id in scales && scales[id].type === scaleType) {\n scale = scales[id];\n } else {\n const scaleClass = registry.getScale(scaleType);\n scale = new scaleClass({\n id,\n type: scaleType,\n ctx: this.ctx,\n chart: this\n });\n scales[scale.id] = scale;\n }\n scale.init(scaleOptions, options);\n });\n each(updated, (hasUpdated, id)=>{\n if (!hasUpdated) {\n delete scales[id];\n }\n });\n each(scales, (scale)=>{\n layouts.configure(this, scale, scale.options);\n layouts.addBox(this, scale);\n });\n }\n _updateMetasets() {\n const metasets = this._metasets;\n const numData = this.data.datasets.length;\n const numMeta = metasets.length;\n metasets.sort((a, b)=>a.index - b.index);\n if (numMeta > numData) {\n for(let i = numData; i < numMeta; ++i){\n this._destroyDatasetMeta(i);\n }\n metasets.splice(numData, numMeta - numData);\n }\n this._sortedMetasets = metasets.slice(0).sort(compare2Level('order', 'index'));\n }\n _removeUnreferencedMetasets() {\n const { _metasets: metasets , data: { datasets } } = this;\n if (metasets.length > datasets.length) {\n delete this._stacks;\n }\n metasets.forEach((meta, index)=>{\n if (datasets.filter((x)=>x === meta._dataset).length === 0) {\n this._destroyDatasetMeta(index);\n }\n });\n }\n buildOrUpdateControllers() {\n const newControllers = [];\n const datasets = this.data.datasets;\n let i, ilen;\n this._removeUnreferencedMetasets();\n for(i = 0, ilen = datasets.length; i < ilen; i++){\n const dataset = datasets[i];\n let meta = this.getDatasetMeta(i);\n const type = dataset.type || this.config.type;\n if (meta.type && meta.type !== type) {\n this._destroyDatasetMeta(i);\n meta = this.getDatasetMeta(i);\n }\n meta.type = type;\n meta.indexAxis = dataset.indexAxis || getIndexAxis(type, this.options);\n meta.order = dataset.order || 0;\n meta.index = i;\n meta.label = '' + dataset.label;\n meta.visible = this.isDatasetVisible(i);\n if (meta.controller) {\n meta.controller.updateIndex(i);\n meta.controller.linkScales();\n } else {\n const ControllerClass = registry.getController(type);\n const { datasetElementType , dataElementType } = defaults.datasets[type];\n Object.assign(ControllerClass, {\n dataElementType: registry.getElement(dataElementType),\n datasetElementType: datasetElementType && registry.getElement(datasetElementType)\n });\n meta.controller = new ControllerClass(this, i);\n newControllers.push(meta.controller);\n }\n }\n this._updateMetasets();\n return newControllers;\n }\n _resetElements() {\n each(this.data.datasets, (dataset, datasetIndex)=>{\n this.getDatasetMeta(datasetIndex).controller.reset();\n }, this);\n }\n reset() {\n this._resetElements();\n this.notifyPlugins('reset');\n }\n update(mode) {\n const config = this.config;\n config.update();\n const options = this._options = config.createResolver(config.chartOptionScopes(), this.getContext());\n const animsDisabled = this._animationsDisabled = !options.animation;\n this._updateScales();\n this._checkEventBindings();\n this._updateHiddenIndices();\n this._plugins.invalidate();\n if (this.notifyPlugins('beforeUpdate', {\n mode,\n cancelable: true\n }) === false) {\n return;\n }\n const newControllers = this.buildOrUpdateControllers();\n this.notifyPlugins('beforeElementsUpdate');\n let minPadding = 0;\n for(let i = 0, ilen = this.data.datasets.length; i < ilen; i++){\n const { controller } = this.getDatasetMeta(i);\n const reset = !animsDisabled && newControllers.indexOf(controller) === -1;\n controller.buildOrUpdateElements(reset);\n minPadding = Math.max(+controller.getMaxOverflow(), minPadding);\n }\n minPadding = this._minPadding = options.layout.autoPadding ? minPadding : 0;\n this._updateLayout(minPadding);\n if (!animsDisabled) {\n each(newControllers, (controller)=>{\n controller.reset();\n });\n }\n this._updateDatasets(mode);\n this.notifyPlugins('afterUpdate', {\n mode\n });\n this._layers.sort(compare2Level('z', '_idx'));\n const { _active , _lastEvent } = this;\n if (_lastEvent) {\n this._eventHandler(_lastEvent, true);\n } else if (_active.length) {\n this._updateHoverStyles(_active, _active, true);\n }\n this.render();\n }\n _updateScales() {\n each(this.scales, (scale)=>{\n layouts.removeBox(this, scale);\n });\n this.ensureScalesHaveIDs();\n this.buildOrUpdateScales();\n }\n _checkEventBindings() {\n const options = this.options;\n const existingEvents = new Set(Object.keys(this._listeners));\n const newEvents = new Set(options.events);\n if (!setsEqual(existingEvents, newEvents) || !!this._responsiveListeners !== options.responsive) {\n this.unbindEvents();\n this.bindEvents();\n }\n }\n _updateHiddenIndices() {\n const { _hiddenIndices } = this;\n const changes = this._getUniformDataChanges() || [];\n for (const { method , start , count } of changes){\n const move = method === '_removeElements' ? -count : count;\n moveNumericKeys(_hiddenIndices, start, move);\n }\n }\n _getUniformDataChanges() {\n const _dataChanges = this._dataChanges;\n if (!_dataChanges || !_dataChanges.length) {\n return;\n }\n this._dataChanges = [];\n const datasetCount = this.data.datasets.length;\n const makeSet = (idx)=>new Set(_dataChanges.filter((c)=>c[0] === idx).map((c, i)=>i + ',' + c.splice(1).join(',')));\n const changeSet = makeSet(0);\n for(let i = 1; i < datasetCount; i++){\n if (!setsEqual(changeSet, makeSet(i))) {\n return;\n }\n }\n return Array.from(changeSet).map((c)=>c.split(',')).map((a)=>({\n method: a[1],\n start: +a[2],\n count: +a[3]\n }));\n }\n _updateLayout(minPadding) {\n if (this.notifyPlugins('beforeLayout', {\n cancelable: true\n }) === false) {\n return;\n }\n layouts.update(this, this.width, this.height, minPadding);\n const area = this.chartArea;\n const noArea = area.width <= 0 || area.height <= 0;\n this._layers = [];\n each(this.boxes, (box)=>{\n if (noArea && box.position === 'chartArea') {\n return;\n }\n if (box.configure) {\n box.configure();\n }\n this._layers.push(...box._layers());\n }, this);\n this._layers.forEach((item, index)=>{\n item._idx = index;\n });\n this.notifyPlugins('afterLayout');\n }\n _updateDatasets(mode) {\n if (this.notifyPlugins('beforeDatasetsUpdate', {\n mode,\n cancelable: true\n }) === false) {\n return;\n }\n for(let i = 0, ilen = this.data.datasets.length; i < ilen; ++i){\n this.getDatasetMeta(i).controller.configure();\n }\n for(let i1 = 0, ilen1 = this.data.datasets.length; i1 < ilen1; ++i1){\n this._updateDataset(i1, isFunction(mode) ? mode({\n datasetIndex: i1\n }) : mode);\n }\n this.notifyPlugins('afterDatasetsUpdate', {\n mode\n });\n }\n _updateDataset(index, mode) {\n const meta = this.getDatasetMeta(index);\n const args = {\n meta,\n index,\n mode,\n cancelable: true\n };\n if (this.notifyPlugins('beforeDatasetUpdate', args) === false) {\n return;\n }\n meta.controller._update(mode);\n args.cancelable = false;\n this.notifyPlugins('afterDatasetUpdate', args);\n }\n render() {\n if (this.notifyPlugins('beforeRender', {\n cancelable: true\n }) === false) {\n return;\n }\n if (animator.has(this)) {\n if (this.attached && !animator.running(this)) {\n animator.start(this);\n }\n } else {\n this.draw();\n onAnimationsComplete({\n chart: this\n });\n }\n }\n draw() {\n let i;\n if (this._resizeBeforeDraw) {\n const { width , height } = this._resizeBeforeDraw;\n this._resize(width, height);\n this._resizeBeforeDraw = null;\n }\n this.clear();\n if (this.width <= 0 || this.height <= 0) {\n return;\n }\n if (this.notifyPlugins('beforeDraw', {\n cancelable: true\n }) === false) {\n return;\n }\n const layers = this._layers;\n for(i = 0; i < layers.length && layers[i].z <= 0; ++i){\n layers[i].draw(this.chartArea);\n }\n this._drawDatasets();\n for(; i < layers.length; ++i){\n layers[i].draw(this.chartArea);\n }\n this.notifyPlugins('afterDraw');\n }\n _getSortedDatasetMetas(filterVisible) {\n const metasets = this._sortedMetasets;\n const result = [];\n let i, ilen;\n for(i = 0, ilen = metasets.length; i < ilen; ++i){\n const meta = metasets[i];\n if (!filterVisible || meta.visible) {\n result.push(meta);\n }\n }\n return result;\n }\n getSortedVisibleDatasetMetas() {\n return this._getSortedDatasetMetas(true);\n }\n _drawDatasets() {\n if (this.notifyPlugins('beforeDatasetsDraw', {\n cancelable: true\n }) === false) {\n return;\n }\n const metasets = this.getSortedVisibleDatasetMetas();\n for(let i = metasets.length - 1; i >= 0; --i){\n this._drawDataset(metasets[i]);\n }\n this.notifyPlugins('afterDatasetsDraw');\n }\n _drawDataset(meta) {\n const ctx = this.ctx;\n const clip = meta._clip;\n const useClip = !clip.disabled;\n const area = getDatasetArea(meta) || this.chartArea;\n const args = {\n meta,\n index: meta.index,\n cancelable: true\n };\n if (this.notifyPlugins('beforeDatasetDraw', args) === false) {\n return;\n }\n if (useClip) {\n clipArea(ctx, {\n left: clip.left === false ? 0 : area.left - clip.left,\n right: clip.right === false ? this.width : area.right + clip.right,\n top: clip.top === false ? 0 : area.top - clip.top,\n bottom: clip.bottom === false ? this.height : area.bottom + clip.bottom\n });\n }\n meta.controller.draw();\n if (useClip) {\n unclipArea(ctx);\n }\n args.cancelable = false;\n this.notifyPlugins('afterDatasetDraw', args);\n }\n isPointInArea(point) {\n return _isPointInArea(point, this.chartArea, this._minPadding);\n }\n getElementsAtEventForMode(e, mode, options, useFinalPosition) {\n const method = Interaction.modes[mode];\n if (typeof method === 'function') {\n return method(this, e, options, useFinalPosition);\n }\n return [];\n }\n getDatasetMeta(datasetIndex) {\n const dataset = this.data.datasets[datasetIndex];\n const metasets = this._metasets;\n let meta = metasets.filter((x)=>x && x._dataset === dataset).pop();\n if (!meta) {\n meta = {\n type: null,\n data: [],\n dataset: null,\n controller: null,\n hidden: null,\n xAxisID: null,\n yAxisID: null,\n order: dataset && dataset.order || 0,\n index: datasetIndex,\n _dataset: dataset,\n _parsed: [],\n _sorted: false\n };\n metasets.push(meta);\n }\n return meta;\n }\n getContext() {\n return this.$context || (this.$context = createContext(null, {\n chart: this,\n type: 'chart'\n }));\n }\n getVisibleDatasetCount() {\n return this.getSortedVisibleDatasetMetas().length;\n }\n isDatasetVisible(datasetIndex) {\n const dataset = this.data.datasets[datasetIndex];\n if (!dataset) {\n return false;\n }\n const meta = this.getDatasetMeta(datasetIndex);\n return typeof meta.hidden === 'boolean' ? !meta.hidden : !dataset.hidden;\n }\n setDatasetVisibility(datasetIndex, visible) {\n const meta = this.getDatasetMeta(datasetIndex);\n meta.hidden = !visible;\n }\n toggleDataVisibility(index) {\n this._hiddenIndices[index] = !this._hiddenIndices[index];\n }\n getDataVisibility(index) {\n return !this._hiddenIndices[index];\n }\n _updateVisibility(datasetIndex, dataIndex, visible) {\n const mode = visible ? 'show' : 'hide';\n const meta = this.getDatasetMeta(datasetIndex);\n const anims = meta.controller._resolveAnimations(undefined, mode);\n if (defined(dataIndex)) {\n meta.data[dataIndex].hidden = !visible;\n this.update();\n } else {\n this.setDatasetVisibility(datasetIndex, visible);\n anims.update(meta, {\n visible\n });\n this.update((ctx)=>ctx.datasetIndex === datasetIndex ? mode : undefined);\n }\n }\n hide(datasetIndex, dataIndex) {\n this._updateVisibility(datasetIndex, dataIndex, false);\n }\n show(datasetIndex, dataIndex) {\n this._updateVisibility(datasetIndex, dataIndex, true);\n }\n _destroyDatasetMeta(datasetIndex) {\n const meta = this._metasets[datasetIndex];\n if (meta && meta.controller) {\n meta.controller._destroy();\n }\n delete this._metasets[datasetIndex];\n }\n _stop() {\n let i, ilen;\n this.stop();\n animator.remove(this);\n for(i = 0, ilen = this.data.datasets.length; i < ilen; ++i){\n this._destroyDatasetMeta(i);\n }\n }\n destroy() {\n this.notifyPlugins('beforeDestroy');\n const { canvas , ctx } = this;\n this._stop();\n this.config.clearCache();\n if (canvas) {\n this.unbindEvents();\n clearCanvas(canvas, ctx);\n this.platform.releaseContext(ctx);\n this.canvas = null;\n this.ctx = null;\n }\n delete instances[this.id];\n this.notifyPlugins('afterDestroy');\n }\n toBase64Image(...args) {\n return this.canvas.toDataURL(...args);\n }\n bindEvents() {\n this.bindUserEvents();\n if (this.options.responsive) {\n this.bindResponsiveEvents();\n } else {\n this.attached = true;\n }\n }\n bindUserEvents() {\n const listeners = this._listeners;\n const platform = this.platform;\n const _add = (type, listener)=>{\n platform.addEventListener(this, type, listener);\n listeners[type] = listener;\n };\n const listener = (e, x, y)=>{\n e.offsetX = x;\n e.offsetY = y;\n this._eventHandler(e);\n };\n each(this.options.events, (type)=>_add(type, listener));\n }\n bindResponsiveEvents() {\n if (!this._responsiveListeners) {\n this._responsiveListeners = {};\n }\n const listeners = this._responsiveListeners;\n const platform = this.platform;\n const _add = (type, listener)=>{\n platform.addEventListener(this, type, listener);\n listeners[type] = listener;\n };\n const _remove = (type, listener)=>{\n if (listeners[type]) {\n platform.removeEventListener(this, type, listener);\n delete listeners[type];\n }\n };\n const listener = (width, height)=>{\n if (this.canvas) {\n this.resize(width, height);\n }\n };\n let detached;\n const attached = ()=>{\n _remove('attach', attached);\n this.attached = true;\n this.resize();\n _add('resize', listener);\n _add('detach', detached);\n };\n detached = ()=>{\n this.attached = false;\n _remove('resize', listener);\n this._stop();\n this._resize(0, 0);\n _add('attach', attached);\n };\n if (platform.isAttached(this.canvas)) {\n attached();\n } else {\n detached();\n }\n }\n unbindEvents() {\n each(this._listeners, (listener, type)=>{\n this.platform.removeEventListener(this, type, listener);\n });\n this._listeners = {};\n each(this._responsiveListeners, (listener, type)=>{\n this.platform.removeEventListener(this, type, listener);\n });\n this._responsiveListeners = undefined;\n }\n updateHoverStyle(items, mode, enabled) {\n const prefix = enabled ? 'set' : 'remove';\n let meta, item, i, ilen;\n if (mode === 'dataset') {\n meta = this.getDatasetMeta(items[0].datasetIndex);\n meta.controller['_' + prefix + 'DatasetHoverStyle']();\n }\n for(i = 0, ilen = items.length; i < ilen; ++i){\n item = items[i];\n const controller = item && this.getDatasetMeta(item.datasetIndex).controller;\n if (controller) {\n controller[prefix + 'HoverStyle'](item.element, item.datasetIndex, item.index);\n }\n }\n }\n getActiveElements() {\n return this._active || [];\n }\n setActiveElements(activeElements) {\n const lastActive = this._active || [];\n const active = activeElements.map(({ datasetIndex , index })=>{\n const meta = this.getDatasetMeta(datasetIndex);\n if (!meta) {\n throw new Error('No dataset found at index ' + datasetIndex);\n }\n return {\n datasetIndex,\n element: meta.data[index],\n index\n };\n });\n const changed = !_elementsEqual(active, lastActive);\n if (changed) {\n this._active = active;\n this._lastEvent = null;\n this._updateHoverStyles(active, lastActive);\n }\n }\n notifyPlugins(hook, args, filter) {\n return this._plugins.notify(this, hook, args, filter);\n }\n isPluginEnabled(pluginId) {\n return this._plugins._cache.filter((p)=>p.plugin.id === pluginId).length === 1;\n }\n _updateHoverStyles(active, lastActive, replay) {\n const hoverOptions = this.options.hover;\n const diff = (a, b)=>a.filter((x)=>!b.some((y)=>x.datasetIndex === y.datasetIndex && x.index === y.index));\n const deactivated = diff(lastActive, active);\n const activated = replay ? active : diff(active, lastActive);\n if (deactivated.length) {\n this.updateHoverStyle(deactivated, hoverOptions.mode, false);\n }\n if (activated.length && hoverOptions.mode) {\n this.updateHoverStyle(activated, hoverOptions.mode, true);\n }\n }\n _eventHandler(e, replay) {\n const args = {\n event: e,\n replay,\n cancelable: true,\n inChartArea: this.isPointInArea(e)\n };\n const eventFilter = (plugin)=>(plugin.options.events || this.options.events).includes(e.native.type);\n if (this.notifyPlugins('beforeEvent', args, eventFilter) === false) {\n return;\n }\n const changed = this._handleEvent(e, replay, args.inChartArea);\n args.cancelable = false;\n this.notifyPlugins('afterEvent', args, eventFilter);\n if (changed || args.changed) {\n this.render();\n }\n return this;\n }\n _handleEvent(e, replay, inChartArea) {\n const { _active: lastActive = [] , options } = this;\n const useFinalPosition = replay;\n const active = this._getActiveElements(e, lastActive, inChartArea, useFinalPosition);\n const isClick = _isClickEvent(e);\n const lastEvent = determineLastEvent(e, this._lastEvent, inChartArea, isClick);\n if (inChartArea) {\n this._lastEvent = null;\n callback(options.onHover, [\n e,\n active,\n this\n ], this);\n if (isClick) {\n callback(options.onClick, [\n e,\n active,\n this\n ], this);\n }\n }\n const changed = !_elementsEqual(active, lastActive);\n if (changed || replay) {\n this._active = active;\n this._updateHoverStyles(active, lastActive, replay);\n }\n this._lastEvent = lastEvent;\n return changed;\n }\n _getActiveElements(e, lastActive, inChartArea, useFinalPosition) {\n if (e.type === 'mouseout') {\n return [];\n }\n if (!inChartArea) {\n return lastActive;\n }\n const hoverOptions = this.options.hover;\n return this.getElementsAtEventForMode(e, hoverOptions.mode, hoverOptions, useFinalPosition);\n }\n}\nfunction invalidatePlugins() {\n return each(Chart.instances, (chart)=>chart._plugins.invalidate());\n}\n\n/**\n * @namespace Chart._adapters\n * @since 2.8.0\n * @private\n */ function abstract() {\n throw new Error('This method is not implemented: Check that a complete date adapter is provided.');\n}\n/**\n * Date adapter (current used by the time scale)\n * @namespace Chart._adapters._date\n * @memberof Chart._adapters\n * @private\n */ class DateAdapterBase {\n /**\n * Override default date adapter methods.\n * Accepts type parameter to define options type.\n * @example\n * Chart._adapters._date.override<{myAdapterOption: string}>({\n * init() {\n * console.log(this.options.myAdapterOption);\n * }\n * })\n */ static override(members) {\n Object.assign(DateAdapterBase.prototype, members);\n }\n constructor(options){\n this.options = options || {};\n }\n // eslint-disable-next-line @typescript-eslint/no-empty-function\n init() {}\n formats() {\n return abstract();\n }\n parse() {\n return abstract();\n }\n format() {\n return abstract();\n }\n add() {\n return abstract();\n }\n diff() {\n return abstract();\n }\n startOf() {\n return abstract();\n }\n endOf() {\n return abstract();\n }\n}\nvar _adapters = {\n _date: DateAdapterBase\n};\n\nfunction getAllScaleValues(scale, type) {\n if (!scale._cache.$bar) {\n const visibleMetas = scale.getMatchingVisibleMetas(type);\n let values = [];\n for(let i = 0, ilen = visibleMetas.length; i < ilen; i++){\n values = values.concat(visibleMetas[i].controller.getAllParsedValues(scale));\n }\n scale._cache.$bar = _arrayUnique(values.sort((a, b)=>a - b));\n }\n return scale._cache.$bar;\n}\n function computeMinSampleSize(meta) {\n const scale = meta.iScale;\n const values = getAllScaleValues(scale, meta.type);\n let min = scale._length;\n let i, ilen, curr, prev;\n const updateMinAndPrev = ()=>{\n if (curr === 32767 || curr === -32768) {\n return;\n }\n if (defined(prev)) {\n min = Math.min(min, Math.abs(curr - prev) || min);\n }\n prev = curr;\n };\n for(i = 0, ilen = values.length; i < ilen; ++i){\n curr = scale.getPixelForValue(values[i]);\n updateMinAndPrev();\n }\n prev = undefined;\n for(i = 0, ilen = scale.ticks.length; i < ilen; ++i){\n curr = scale.getPixelForTick(i);\n updateMinAndPrev();\n }\n return min;\n}\n function computeFitCategoryTraits(index, ruler, options, stackCount) {\n const thickness = options.barThickness;\n let size, ratio;\n if (isNullOrUndef(thickness)) {\n size = ruler.min * options.categoryPercentage;\n ratio = options.barPercentage;\n } else {\n size = thickness * stackCount;\n ratio = 1;\n }\n return {\n chunk: size / stackCount,\n ratio,\n start: ruler.pixels[index] - size / 2\n };\n}\n function computeFlexCategoryTraits(index, ruler, options, stackCount) {\n const pixels = ruler.pixels;\n const curr = pixels[index];\n let prev = index > 0 ? pixels[index - 1] : null;\n let next = index < pixels.length - 1 ? pixels[index + 1] : null;\n const percent = options.categoryPercentage;\n if (prev === null) {\n prev = curr - (next === null ? ruler.end - ruler.start : next - curr);\n }\n if (next === null) {\n next = curr + curr - prev;\n }\n const start = curr - (curr - Math.min(prev, next)) / 2 * percent;\n const size = Math.abs(next - prev) / 2 * percent;\n return {\n chunk: size / stackCount,\n ratio: options.barPercentage,\n start\n };\n}\nfunction parseFloatBar(entry, item, vScale, i) {\n const startValue = vScale.parse(entry[0], i);\n const endValue = vScale.parse(entry[1], i);\n const min = Math.min(startValue, endValue);\n const max = Math.max(startValue, endValue);\n let barStart = min;\n let barEnd = max;\n if (Math.abs(min) > Math.abs(max)) {\n barStart = max;\n barEnd = min;\n }\n item[vScale.axis] = barEnd;\n item._custom = {\n barStart,\n barEnd,\n start: startValue,\n end: endValue,\n min,\n max\n };\n}\nfunction parseValue(entry, item, vScale, i) {\n if (isArray(entry)) {\n parseFloatBar(entry, item, vScale, i);\n } else {\n item[vScale.axis] = vScale.parse(entry, i);\n }\n return item;\n}\nfunction parseArrayOrPrimitive(meta, data, start, count) {\n const iScale = meta.iScale;\n const vScale = meta.vScale;\n const labels = iScale.getLabels();\n const singleScale = iScale === vScale;\n const parsed = [];\n let i, ilen, item, entry;\n for(i = start, ilen = start + count; i < ilen; ++i){\n entry = data[i];\n item = {};\n item[iScale.axis] = singleScale || iScale.parse(labels[i], i);\n parsed.push(parseValue(entry, item, vScale, i));\n }\n return parsed;\n}\nfunction isFloatBar(custom) {\n return custom && custom.barStart !== undefined && custom.barEnd !== undefined;\n}\nfunction barSign(size, vScale, actualBase) {\n if (size !== 0) {\n return sign(size);\n }\n return (vScale.isHorizontal() ? 1 : -1) * (vScale.min >= actualBase ? 1 : -1);\n}\nfunction borderProps(properties) {\n let reverse, start, end, top, bottom;\n if (properties.horizontal) {\n reverse = properties.base > properties.x;\n start = 'left';\n end = 'right';\n } else {\n reverse = properties.base < properties.y;\n start = 'bottom';\n end = 'top';\n }\n if (reverse) {\n top = 'end';\n bottom = 'start';\n } else {\n top = 'start';\n bottom = 'end';\n }\n return {\n start,\n end,\n reverse,\n top,\n bottom\n };\n}\nfunction setBorderSkipped(properties, options, stack, index) {\n let edge = options.borderSkipped;\n const res = {};\n if (!edge) {\n properties.borderSkipped = res;\n return;\n }\n if (edge === true) {\n properties.borderSkipped = {\n top: true,\n right: true,\n bottom: true,\n left: true\n };\n return;\n }\n const { start , end , reverse , top , bottom } = borderProps(properties);\n if (edge === 'middle' && stack) {\n properties.enableBorderRadius = true;\n if ((stack._top || 0) === index) {\n edge = top;\n } else if ((stack._bottom || 0) === index) {\n edge = bottom;\n } else {\n res[parseEdge(bottom, start, end, reverse)] = true;\n edge = top;\n }\n }\n res[parseEdge(edge, start, end, reverse)] = true;\n properties.borderSkipped = res;\n}\nfunction parseEdge(edge, a, b, reverse) {\n if (reverse) {\n edge = swap(edge, a, b);\n edge = startEnd(edge, b, a);\n } else {\n edge = startEnd(edge, a, b);\n }\n return edge;\n}\nfunction swap(orig, v1, v2) {\n return orig === v1 ? v2 : orig === v2 ? v1 : orig;\n}\nfunction startEnd(v, start, end) {\n return v === 'start' ? start : v === 'end' ? end : v;\n}\nfunction setInflateAmount(properties, { inflateAmount }, ratio) {\n properties.inflateAmount = inflateAmount === 'auto' ? ratio === 1 ? 0.33 : 0 : inflateAmount;\n}\nclass BarController extends DatasetController {\n static id = 'bar';\n static defaults = {\n datasetElementType: false,\n dataElementType: 'bar',\n categoryPercentage: 0.8,\n barPercentage: 0.9,\n grouped: true,\n animations: {\n numbers: {\n type: 'number',\n properties: [\n 'x',\n 'y',\n 'base',\n 'width',\n 'height'\n ]\n }\n }\n };\n static overrides = {\n scales: {\n _index_: {\n type: 'category',\n offset: true,\n grid: {\n offset: true\n }\n },\n _value_: {\n type: 'linear',\n beginAtZero: true\n }\n }\n };\n parsePrimitiveData(meta, data, start, count) {\n return parseArrayOrPrimitive(meta, data, start, count);\n }\n parseArrayData(meta, data, start, count) {\n return parseArrayOrPrimitive(meta, data, start, count);\n }\n parseObjectData(meta, data, start, count) {\n const { iScale , vScale } = meta;\n const { xAxisKey ='x' , yAxisKey ='y' } = this._parsing;\n const iAxisKey = iScale.axis === 'x' ? xAxisKey : yAxisKey;\n const vAxisKey = vScale.axis === 'x' ? xAxisKey : yAxisKey;\n const parsed = [];\n let i, ilen, item, obj;\n for(i = start, ilen = start + count; i < ilen; ++i){\n obj = data[i];\n item = {};\n item[iScale.axis] = iScale.parse(resolveObjectKey(obj, iAxisKey), i);\n parsed.push(parseValue(resolveObjectKey(obj, vAxisKey), item, vScale, i));\n }\n return parsed;\n }\n updateRangeFromParsed(range, scale, parsed, stack) {\n super.updateRangeFromParsed(range, scale, parsed, stack);\n const custom = parsed._custom;\n if (custom && scale === this._cachedMeta.vScale) {\n range.min = Math.min(range.min, custom.min);\n range.max = Math.max(range.max, custom.max);\n }\n }\n getMaxOverflow() {\n return 0;\n }\n getLabelAndValue(index) {\n const meta = this._cachedMeta;\n const { iScale , vScale } = meta;\n const parsed = this.getParsed(index);\n const custom = parsed._custom;\n const value = isFloatBar(custom) ? '[' + custom.start + ', ' + custom.end + ']' : '' + vScale.getLabelForValue(parsed[vScale.axis]);\n return {\n label: '' + iScale.getLabelForValue(parsed[iScale.axis]),\n value\n };\n }\n initialize() {\n this.enableOptionSharing = true;\n super.initialize();\n const meta = this._cachedMeta;\n meta.stack = this.getDataset().stack;\n }\n update(mode) {\n const meta = this._cachedMeta;\n this.updateElements(meta.data, 0, meta.data.length, mode);\n }\n updateElements(bars, start, count, mode) {\n const reset = mode === 'reset';\n const { index , _cachedMeta: { vScale } } = this;\n const base = vScale.getBasePixel();\n const horizontal = vScale.isHorizontal();\n const ruler = this._getRuler();\n const { sharedOptions , includeOptions } = this._getSharedOptions(start, mode);\n for(let i = start; i < start + count; i++){\n const parsed = this.getParsed(i);\n const vpixels = reset || isNullOrUndef(parsed[vScale.axis]) ? {\n base,\n head: base\n } : this._calculateBarValuePixels(i);\n const ipixels = this._calculateBarIndexPixels(i, ruler);\n const stack = (parsed._stacks || {})[vScale.axis];\n const properties = {\n horizontal,\n base: vpixels.base,\n enableBorderRadius: !stack || isFloatBar(parsed._custom) || index === stack._top || index === stack._bottom,\n x: horizontal ? vpixels.head : ipixels.center,\n y: horizontal ? ipixels.center : vpixels.head,\n height: horizontal ? ipixels.size : Math.abs(vpixels.size),\n width: horizontal ? Math.abs(vpixels.size) : ipixels.size\n };\n if (includeOptions) {\n properties.options = sharedOptions || this.resolveDataElementOptions(i, bars[i].active ? 'active' : mode);\n }\n const options = properties.options || bars[i].options;\n setBorderSkipped(properties, options, stack, index);\n setInflateAmount(properties, options, ruler.ratio);\n this.updateElement(bars[i], i, properties, mode);\n }\n }\n _getStacks(last, dataIndex) {\n const { iScale } = this._cachedMeta;\n const metasets = iScale.getMatchingVisibleMetas(this._type).filter((meta)=>meta.controller.options.grouped);\n const stacked = iScale.options.stacked;\n const stacks = [];\n const skipNull = (meta)=>{\n const parsed = meta.controller.getParsed(dataIndex);\n const val = parsed && parsed[meta.vScale.axis];\n if (isNullOrUndef(val) || isNaN(val)) {\n return true;\n }\n };\n for (const meta of metasets){\n if (dataIndex !== undefined && skipNull(meta)) {\n continue;\n }\n if (stacked === false || stacks.indexOf(meta.stack) === -1 || stacked === undefined && meta.stack === undefined) {\n stacks.push(meta.stack);\n }\n if (meta.index === last) {\n break;\n }\n }\n if (!stacks.length) {\n stacks.push(undefined);\n }\n return stacks;\n }\n _getStackCount(index) {\n return this._getStacks(undefined, index).length;\n }\n _getStackIndex(datasetIndex, name, dataIndex) {\n const stacks = this._getStacks(datasetIndex, dataIndex);\n const index = name !== undefined ? stacks.indexOf(name) : -1;\n return index === -1 ? stacks.length - 1 : index;\n }\n _getRuler() {\n const opts = this.options;\n const meta = this._cachedMeta;\n const iScale = meta.iScale;\n const pixels = [];\n let i, ilen;\n for(i = 0, ilen = meta.data.length; i < ilen; ++i){\n pixels.push(iScale.getPixelForValue(this.getParsed(i)[iScale.axis], i));\n }\n const barThickness = opts.barThickness;\n const min = barThickness || computeMinSampleSize(meta);\n return {\n min,\n pixels,\n start: iScale._startPixel,\n end: iScale._endPixel,\n stackCount: this._getStackCount(),\n scale: iScale,\n grouped: opts.grouped,\n ratio: barThickness ? 1 : opts.categoryPercentage * opts.barPercentage\n };\n }\n _calculateBarValuePixels(index) {\n const { _cachedMeta: { vScale , _stacked , index: datasetIndex } , options: { base: baseValue , minBarLength } } = this;\n const actualBase = baseValue || 0;\n const parsed = this.getParsed(index);\n const custom = parsed._custom;\n const floating = isFloatBar(custom);\n let value = parsed[vScale.axis];\n let start = 0;\n let length = _stacked ? this.applyStack(vScale, parsed, _stacked) : value;\n let head, size;\n if (length !== value) {\n start = length - value;\n length = value;\n }\n if (floating) {\n value = custom.barStart;\n length = custom.barEnd - custom.barStart;\n if (value !== 0 && sign(value) !== sign(custom.barEnd)) {\n start = 0;\n }\n start += value;\n }\n const startValue = !isNullOrUndef(baseValue) && !floating ? baseValue : start;\n let base = vScale.getPixelForValue(startValue);\n if (this.chart.getDataVisibility(index)) {\n head = vScale.getPixelForValue(start + length);\n } else {\n head = base;\n }\n size = head - base;\n if (Math.abs(size) < minBarLength) {\n size = barSign(size, vScale, actualBase) * minBarLength;\n if (value === actualBase) {\n base -= size / 2;\n }\n const startPixel = vScale.getPixelForDecimal(0);\n const endPixel = vScale.getPixelForDecimal(1);\n const min = Math.min(startPixel, endPixel);\n const max = Math.max(startPixel, endPixel);\n base = Math.max(Math.min(base, max), min);\n head = base + size;\n if (_stacked && !floating) {\n parsed._stacks[vScale.axis]._visualValues[datasetIndex] = vScale.getValueForPixel(head) - vScale.getValueForPixel(base);\n }\n }\n if (base === vScale.getPixelForValue(actualBase)) {\n const halfGrid = sign(size) * vScale.getLineWidthForValue(actualBase) / 2;\n base += halfGrid;\n size -= halfGrid;\n }\n return {\n size,\n base,\n head,\n center: head + size / 2\n };\n }\n _calculateBarIndexPixels(index, ruler) {\n const scale = ruler.scale;\n const options = this.options;\n const skipNull = options.skipNull;\n const maxBarThickness = valueOrDefault(options.maxBarThickness, Infinity);\n let center, size;\n if (ruler.grouped) {\n const stackCount = skipNull ? this._getStackCount(index) : ruler.stackCount;\n const range = options.barThickness === 'flex' ? computeFlexCategoryTraits(index, ruler, options, stackCount) : computeFitCategoryTraits(index, ruler, options, stackCount);\n const stackIndex = this._getStackIndex(this.index, this._cachedMeta.stack, skipNull ? index : undefined);\n center = range.start + range.chunk * stackIndex + range.chunk / 2;\n size = Math.min(maxBarThickness, range.chunk * range.ratio);\n } else {\n center = scale.getPixelForValue(this.getParsed(index)[scale.axis], index);\n size = Math.min(maxBarThickness, ruler.min * ruler.ratio);\n }\n return {\n base: center - size / 2,\n head: center + size / 2,\n center,\n size\n };\n }\n draw() {\n const meta = this._cachedMeta;\n const vScale = meta.vScale;\n const rects = meta.data;\n const ilen = rects.length;\n let i = 0;\n for(; i < ilen; ++i){\n if (this.getParsed(i)[vScale.axis] !== null) {\n rects[i].draw(this._ctx);\n }\n }\n }\n}\n\nclass BubbleController extends DatasetController {\n static id = 'bubble';\n static defaults = {\n datasetElementType: false,\n dataElementType: 'point',\n animations: {\n numbers: {\n type: 'number',\n properties: [\n 'x',\n 'y',\n 'borderWidth',\n 'radius'\n ]\n }\n }\n };\n static overrides = {\n scales: {\n x: {\n type: 'linear'\n },\n y: {\n type: 'linear'\n }\n }\n };\n initialize() {\n this.enableOptionSharing = true;\n super.initialize();\n }\n parsePrimitiveData(meta, data, start, count) {\n const parsed = super.parsePrimitiveData(meta, data, start, count);\n for(let i = 0; i < parsed.length; i++){\n parsed[i]._custom = this.resolveDataElementOptions(i + start).radius;\n }\n return parsed;\n }\n parseArrayData(meta, data, start, count) {\n const parsed = super.parseArrayData(meta, data, start, count);\n for(let i = 0; i < parsed.length; i++){\n const item = data[start + i];\n parsed[i]._custom = valueOrDefault(item[2], this.resolveDataElementOptions(i + start).radius);\n }\n return parsed;\n }\n parseObjectData(meta, data, start, count) {\n const parsed = super.parseObjectData(meta, data, start, count);\n for(let i = 0; i < parsed.length; i++){\n const item = data[start + i];\n parsed[i]._custom = valueOrDefault(item && item.r && +item.r, this.resolveDataElementOptions(i + start).radius);\n }\n return parsed;\n }\n getMaxOverflow() {\n const data = this._cachedMeta.data;\n let max = 0;\n for(let i = data.length - 1; i >= 0; --i){\n max = Math.max(max, data[i].size(this.resolveDataElementOptions(i)) / 2);\n }\n return max > 0 && max;\n }\n getLabelAndValue(index) {\n const meta = this._cachedMeta;\n const labels = this.chart.data.labels || [];\n const { xScale , yScale } = meta;\n const parsed = this.getParsed(index);\n const x = xScale.getLabelForValue(parsed.x);\n const y = yScale.getLabelForValue(parsed.y);\n const r = parsed._custom;\n return {\n label: labels[index] || '',\n value: '(' + x + ', ' + y + (r ? ', ' + r : '') + ')'\n };\n }\n update(mode) {\n const points = this._cachedMeta.data;\n this.updateElements(points, 0, points.length, mode);\n }\n updateElements(points, start, count, mode) {\n const reset = mode === 'reset';\n const { iScale , vScale } = this._cachedMeta;\n const { sharedOptions , includeOptions } = this._getSharedOptions(start, mode);\n const iAxis = iScale.axis;\n const vAxis = vScale.axis;\n for(let i = start; i < start + count; i++){\n const point = points[i];\n const parsed = !reset && this.getParsed(i);\n const properties = {};\n const iPixel = properties[iAxis] = reset ? iScale.getPixelForDecimal(0.5) : iScale.getPixelForValue(parsed[iAxis]);\n const vPixel = properties[vAxis] = reset ? vScale.getBasePixel() : vScale.getPixelForValue(parsed[vAxis]);\n properties.skip = isNaN(iPixel) || isNaN(vPixel);\n if (includeOptions) {\n properties.options = sharedOptions || this.resolveDataElementOptions(i, point.active ? 'active' : mode);\n if (reset) {\n properties.options.radius = 0;\n }\n }\n this.updateElement(point, i, properties, mode);\n }\n }\n resolveDataElementOptions(index, mode) {\n const parsed = this.getParsed(index);\n let values = super.resolveDataElementOptions(index, mode);\n if (values.$shared) {\n values = Object.assign({}, values, {\n $shared: false\n });\n }\n const radius = values.radius;\n if (mode !== 'active') {\n values.radius = 0;\n }\n values.radius += valueOrDefault(parsed && parsed._custom, radius);\n return values;\n }\n}\n\nfunction getRatioAndOffset(rotation, circumference, cutout) {\n let ratioX = 1;\n let ratioY = 1;\n let offsetX = 0;\n let offsetY = 0;\n if (circumference < TAU) {\n const startAngle = rotation;\n const endAngle = startAngle + circumference;\n const startX = Math.cos(startAngle);\n const startY = Math.sin(startAngle);\n const endX = Math.cos(endAngle);\n const endY = Math.sin(endAngle);\n const calcMax = (angle, a, b)=>_angleBetween(angle, startAngle, endAngle, true) ? 1 : Math.max(a, a * cutout, b, b * cutout);\n const calcMin = (angle, a, b)=>_angleBetween(angle, startAngle, endAngle, true) ? -1 : Math.min(a, a * cutout, b, b * cutout);\n const maxX = calcMax(0, startX, endX);\n const maxY = calcMax(HALF_PI, startY, endY);\n const minX = calcMin(PI, startX, endX);\n const minY = calcMin(PI + HALF_PI, startY, endY);\n ratioX = (maxX - minX) / 2;\n ratioY = (maxY - minY) / 2;\n offsetX = -(maxX + minX) / 2;\n offsetY = -(maxY + minY) / 2;\n }\n return {\n ratioX,\n ratioY,\n offsetX,\n offsetY\n };\n}\nclass DoughnutController extends DatasetController {\n static id = 'doughnut';\n static defaults = {\n datasetElementType: false,\n dataElementType: 'arc',\n animation: {\n animateRotate: true,\n animateScale: false\n },\n animations: {\n numbers: {\n type: 'number',\n properties: [\n 'circumference',\n 'endAngle',\n 'innerRadius',\n 'outerRadius',\n 'startAngle',\n 'x',\n 'y',\n 'offset',\n 'borderWidth',\n 'spacing'\n ]\n }\n },\n cutout: '50%',\n rotation: 0,\n circumference: 360,\n radius: '100%',\n spacing: 0,\n indexAxis: 'r'\n };\n static descriptors = {\n _scriptable: (name)=>name !== 'spacing',\n _indexable: (name)=>name !== 'spacing'\n };\n static overrides = {\n aspectRatio: 1,\n plugins: {\n legend: {\n labels: {\n generateLabels (chart) {\n const data = chart.data;\n if (data.labels.length && data.datasets.length) {\n const { labels: { pointStyle , color } } = chart.legend.options;\n return data.labels.map((label, i)=>{\n const meta = chart.getDatasetMeta(0);\n const style = meta.controller.getStyle(i);\n return {\n text: label,\n fillStyle: style.backgroundColor,\n strokeStyle: style.borderColor,\n fontColor: color,\n lineWidth: style.borderWidth,\n pointStyle: pointStyle,\n hidden: !chart.getDataVisibility(i),\n index: i\n };\n });\n }\n return [];\n }\n },\n onClick (e, legendItem, legend) {\n legend.chart.toggleDataVisibility(legendItem.index);\n legend.chart.update();\n }\n }\n }\n };\n constructor(chart, datasetIndex){\n super(chart, datasetIndex);\n this.enableOptionSharing = true;\n this.innerRadius = undefined;\n this.outerRadius = undefined;\n this.offsetX = undefined;\n this.offsetY = undefined;\n }\n linkScales() {}\n parse(start, count) {\n const data = this.getDataset().data;\n const meta = this._cachedMeta;\n if (this._parsing === false) {\n meta._parsed = data;\n } else {\n let getter = (i)=>+data[i];\n if (isObject(data[start])) {\n const { key ='value' } = this._parsing;\n getter = (i)=>+resolveObjectKey(data[i], key);\n }\n let i, ilen;\n for(i = start, ilen = start + count; i < ilen; ++i){\n meta._parsed[i] = getter(i);\n }\n }\n }\n _getRotation() {\n return toRadians(this.options.rotation - 90);\n }\n _getCircumference() {\n return toRadians(this.options.circumference);\n }\n _getRotationExtents() {\n let min = TAU;\n let max = -TAU;\n for(let i = 0; i < this.chart.data.datasets.length; ++i){\n if (this.chart.isDatasetVisible(i) && this.chart.getDatasetMeta(i).type === this._type) {\n const controller = this.chart.getDatasetMeta(i).controller;\n const rotation = controller._getRotation();\n const circumference = controller._getCircumference();\n min = Math.min(min, rotation);\n max = Math.max(max, rotation + circumference);\n }\n }\n return {\n rotation: min,\n circumference: max - min\n };\n }\n update(mode) {\n const chart = this.chart;\n const { chartArea } = chart;\n const meta = this._cachedMeta;\n const arcs = meta.data;\n const spacing = this.getMaxBorderWidth() + this.getMaxOffset(arcs) + this.options.spacing;\n const maxSize = Math.max((Math.min(chartArea.width, chartArea.height) - spacing) / 2, 0);\n const cutout = Math.min(toPercentage(this.options.cutout, maxSize), 1);\n const chartWeight = this._getRingWeight(this.index);\n const { circumference , rotation } = this._getRotationExtents();\n const { ratioX , ratioY , offsetX , offsetY } = getRatioAndOffset(rotation, circumference, cutout);\n const maxWidth = (chartArea.width - spacing) / ratioX;\n const maxHeight = (chartArea.height - spacing) / ratioY;\n const maxRadius = Math.max(Math.min(maxWidth, maxHeight) / 2, 0);\n const outerRadius = toDimension(this.options.radius, maxRadius);\n const innerRadius = Math.max(outerRadius * cutout, 0);\n const radiusLength = (outerRadius - innerRadius) / this._getVisibleDatasetWeightTotal();\n this.offsetX = offsetX * outerRadius;\n this.offsetY = offsetY * outerRadius;\n meta.total = this.calculateTotal();\n this.outerRadius = outerRadius - radiusLength * this._getRingWeightOffset(this.index);\n this.innerRadius = Math.max(this.outerRadius - radiusLength * chartWeight, 0);\n this.updateElements(arcs, 0, arcs.length, mode);\n }\n _circumference(i, reset) {\n const opts = this.options;\n const meta = this._cachedMeta;\n const circumference = this._getCircumference();\n if (reset && opts.animation.animateRotate || !this.chart.getDataVisibility(i) || meta._parsed[i] === null || meta.data[i].hidden) {\n return 0;\n }\n return this.calculateCircumference(meta._parsed[i] * circumference / TAU);\n }\n updateElements(arcs, start, count, mode) {\n const reset = mode === 'reset';\n const chart = this.chart;\n const chartArea = chart.chartArea;\n const opts = chart.options;\n const animationOpts = opts.animation;\n const centerX = (chartArea.left + chartArea.right) / 2;\n const centerY = (chartArea.top + chartArea.bottom) / 2;\n const animateScale = reset && animationOpts.animateScale;\n const innerRadius = animateScale ? 0 : this.innerRadius;\n const outerRadius = animateScale ? 0 : this.outerRadius;\n const { sharedOptions , includeOptions } = this._getSharedOptions(start, mode);\n let startAngle = this._getRotation();\n let i;\n for(i = 0; i < start; ++i){\n startAngle += this._circumference(i, reset);\n }\n for(i = start; i < start + count; ++i){\n const circumference = this._circumference(i, reset);\n const arc = arcs[i];\n const properties = {\n x: centerX + this.offsetX,\n y: centerY + this.offsetY,\n startAngle,\n endAngle: startAngle + circumference,\n circumference,\n outerRadius,\n innerRadius\n };\n if (includeOptions) {\n properties.options = sharedOptions || this.resolveDataElementOptions(i, arc.active ? 'active' : mode);\n }\n startAngle += circumference;\n this.updateElement(arc, i, properties, mode);\n }\n }\n calculateTotal() {\n const meta = this._cachedMeta;\n const metaData = meta.data;\n let total = 0;\n let i;\n for(i = 0; i < metaData.length; i++){\n const value = meta._parsed[i];\n if (value !== null && !isNaN(value) && this.chart.getDataVisibility(i) && !metaData[i].hidden) {\n total += Math.abs(value);\n }\n }\n return total;\n }\n calculateCircumference(value) {\n const total = this._cachedMeta.total;\n if (total > 0 && !isNaN(value)) {\n return TAU * (Math.abs(value) / total);\n }\n return 0;\n }\n getLabelAndValue(index) {\n const meta = this._cachedMeta;\n const chart = this.chart;\n const labels = chart.data.labels || [];\n const value = formatNumber(meta._parsed[index], chart.options.locale);\n return {\n label: labels[index] || '',\n value\n };\n }\n getMaxBorderWidth(arcs) {\n let max = 0;\n const chart = this.chart;\n let i, ilen, meta, controller, options;\n if (!arcs) {\n for(i = 0, ilen = chart.data.datasets.length; i < ilen; ++i){\n if (chart.isDatasetVisible(i)) {\n meta = chart.getDatasetMeta(i);\n arcs = meta.data;\n controller = meta.controller;\n break;\n }\n }\n }\n if (!arcs) {\n return 0;\n }\n for(i = 0, ilen = arcs.length; i < ilen; ++i){\n options = controller.resolveDataElementOptions(i);\n if (options.borderAlign !== 'inner') {\n max = Math.max(max, options.borderWidth || 0, options.hoverBorderWidth || 0);\n }\n }\n return max;\n }\n getMaxOffset(arcs) {\n let max = 0;\n for(let i = 0, ilen = arcs.length; i < ilen; ++i){\n const options = this.resolveDataElementOptions(i);\n max = Math.max(max, options.offset || 0, options.hoverOffset || 0);\n }\n return max;\n }\n _getRingWeightOffset(datasetIndex) {\n let ringWeightOffset = 0;\n for(let i = 0; i < datasetIndex; ++i){\n if (this.chart.isDatasetVisible(i)) {\n ringWeightOffset += this._getRingWeight(i);\n }\n }\n return ringWeightOffset;\n }\n _getRingWeight(datasetIndex) {\n return Math.max(valueOrDefault(this.chart.data.datasets[datasetIndex].weight, 1), 0);\n }\n _getVisibleDatasetWeightTotal() {\n return this._getRingWeightOffset(this.chart.data.datasets.length) || 1;\n }\n}\n\nclass LineController extends DatasetController {\n static id = 'line';\n static defaults = {\n datasetElementType: 'line',\n dataElementType: 'point',\n showLine: true,\n spanGaps: false\n };\n static overrides = {\n scales: {\n _index_: {\n type: 'category'\n },\n _value_: {\n type: 'linear'\n }\n }\n };\n initialize() {\n this.enableOptionSharing = true;\n this.supportsDecimation = true;\n super.initialize();\n }\n update(mode) {\n const meta = this._cachedMeta;\n const { dataset: line , data: points = [] , _dataset } = meta;\n const animationsDisabled = this.chart._animationsDisabled;\n let { start , count } = _getStartAndCountOfVisiblePoints(meta, points, animationsDisabled);\n this._drawStart = start;\n this._drawCount = count;\n if (_scaleRangesChanged(meta)) {\n start = 0;\n count = points.length;\n }\n line._chart = this.chart;\n line._datasetIndex = this.index;\n line._decimated = !!_dataset._decimated;\n line.points = points;\n const options = this.resolveDatasetElementOptions(mode);\n if (!this.options.showLine) {\n options.borderWidth = 0;\n }\n options.segment = this.options.segment;\n this.updateElement(line, undefined, {\n animated: !animationsDisabled,\n options\n }, mode);\n this.updateElements(points, start, count, mode);\n }\n updateElements(points, start, count, mode) {\n const reset = mode === 'reset';\n const { iScale , vScale , _stacked , _dataset } = this._cachedMeta;\n const { sharedOptions , includeOptions } = this._getSharedOptions(start, mode);\n const iAxis = iScale.axis;\n const vAxis = vScale.axis;\n const { spanGaps , segment } = this.options;\n const maxGapLength = isNumber(spanGaps) ? spanGaps : Number.POSITIVE_INFINITY;\n const directUpdate = this.chart._animationsDisabled || reset || mode === 'none';\n const end = start + count;\n const pointsCount = points.length;\n let prevParsed = start > 0 && this.getParsed(start - 1);\n for(let i = 0; i < pointsCount; ++i){\n const point = points[i];\n const properties = directUpdate ? point : {};\n if (i < start || i >= end) {\n properties.skip = true;\n continue;\n }\n const parsed = this.getParsed(i);\n const nullData = isNullOrUndef(parsed[vAxis]);\n const iPixel = properties[iAxis] = iScale.getPixelForValue(parsed[iAxis], i);\n const vPixel = properties[vAxis] = reset || nullData ? vScale.getBasePixel() : vScale.getPixelForValue(_stacked ? this.applyStack(vScale, parsed, _stacked) : parsed[vAxis], i);\n properties.skip = isNaN(iPixel) || isNaN(vPixel) || nullData;\n properties.stop = i > 0 && Math.abs(parsed[iAxis] - prevParsed[iAxis]) > maxGapLength;\n if (segment) {\n properties.parsed = parsed;\n properties.raw = _dataset.data[i];\n }\n if (includeOptions) {\n properties.options = sharedOptions || this.resolveDataElementOptions(i, point.active ? 'active' : mode);\n }\n if (!directUpdate) {\n this.updateElement(point, i, properties, mode);\n }\n prevParsed = parsed;\n }\n }\n getMaxOverflow() {\n const meta = this._cachedMeta;\n const dataset = meta.dataset;\n const border = dataset.options && dataset.options.borderWidth || 0;\n const data = meta.data || [];\n if (!data.length) {\n return border;\n }\n const firstPoint = data[0].size(this.resolveDataElementOptions(0));\n const lastPoint = data[data.length - 1].size(this.resolveDataElementOptions(data.length - 1));\n return Math.max(border, firstPoint, lastPoint) / 2;\n }\n draw() {\n const meta = this._cachedMeta;\n meta.dataset.updateControlPoints(this.chart.chartArea, meta.iScale.axis);\n super.draw();\n }\n}\n\nclass PolarAreaController extends DatasetController {\n static id = 'polarArea';\n static defaults = {\n dataElementType: 'arc',\n animation: {\n animateRotate: true,\n animateScale: true\n },\n animations: {\n numbers: {\n type: 'number',\n properties: [\n 'x',\n 'y',\n 'startAngle',\n 'endAngle',\n 'innerRadius',\n 'outerRadius'\n ]\n }\n },\n indexAxis: 'r',\n startAngle: 0\n };\n static overrides = {\n aspectRatio: 1,\n plugins: {\n legend: {\n labels: {\n generateLabels (chart) {\n const data = chart.data;\n if (data.labels.length && data.datasets.length) {\n const { labels: { pointStyle , color } } = chart.legend.options;\n return data.labels.map((label, i)=>{\n const meta = chart.getDatasetMeta(0);\n const style = meta.controller.getStyle(i);\n return {\n text: label,\n fillStyle: style.backgroundColor,\n strokeStyle: style.borderColor,\n fontColor: color,\n lineWidth: style.borderWidth,\n pointStyle: pointStyle,\n hidden: !chart.getDataVisibility(i),\n index: i\n };\n });\n }\n return [];\n }\n },\n onClick (e, legendItem, legend) {\n legend.chart.toggleDataVisibility(legendItem.index);\n legend.chart.update();\n }\n }\n },\n scales: {\n r: {\n type: 'radialLinear',\n angleLines: {\n display: false\n },\n beginAtZero: true,\n grid: {\n circular: true\n },\n pointLabels: {\n display: false\n },\n startAngle: 0\n }\n }\n };\n constructor(chart, datasetIndex){\n super(chart, datasetIndex);\n this.innerRadius = undefined;\n this.outerRadius = undefined;\n }\n getLabelAndValue(index) {\n const meta = this._cachedMeta;\n const chart = this.chart;\n const labels = chart.data.labels || [];\n const value = formatNumber(meta._parsed[index].r, chart.options.locale);\n return {\n label: labels[index] || '',\n value\n };\n }\n parseObjectData(meta, data, start, count) {\n return _parseObjectDataRadialScale.bind(this)(meta, data, start, count);\n }\n update(mode) {\n const arcs = this._cachedMeta.data;\n this._updateRadius();\n this.updateElements(arcs, 0, arcs.length, mode);\n }\n getMinMax() {\n const meta = this._cachedMeta;\n const range = {\n min: Number.POSITIVE_INFINITY,\n max: Number.NEGATIVE_INFINITY\n };\n meta.data.forEach((element, index)=>{\n const parsed = this.getParsed(index).r;\n if (!isNaN(parsed) && this.chart.getDataVisibility(index)) {\n if (parsed < range.min) {\n range.min = parsed;\n }\n if (parsed > range.max) {\n range.max = parsed;\n }\n }\n });\n return range;\n }\n _updateRadius() {\n const chart = this.chart;\n const chartArea = chart.chartArea;\n const opts = chart.options;\n const minSize = Math.min(chartArea.right - chartArea.left, chartArea.bottom - chartArea.top);\n const outerRadius = Math.max(minSize / 2, 0);\n const innerRadius = Math.max(opts.cutoutPercentage ? outerRadius / 100 * opts.cutoutPercentage : 1, 0);\n const radiusLength = (outerRadius - innerRadius) / chart.getVisibleDatasetCount();\n this.outerRadius = outerRadius - radiusLength * this.index;\n this.innerRadius = this.outerRadius - radiusLength;\n }\n updateElements(arcs, start, count, mode) {\n const reset = mode === 'reset';\n const chart = this.chart;\n const opts = chart.options;\n const animationOpts = opts.animation;\n const scale = this._cachedMeta.rScale;\n const centerX = scale.xCenter;\n const centerY = scale.yCenter;\n const datasetStartAngle = scale.getIndexAngle(0) - 0.5 * PI;\n let angle = datasetStartAngle;\n let i;\n const defaultAngle = 360 / this.countVisibleElements();\n for(i = 0; i < start; ++i){\n angle += this._computeAngle(i, mode, defaultAngle);\n }\n for(i = start; i < start + count; i++){\n const arc = arcs[i];\n let startAngle = angle;\n let endAngle = angle + this._computeAngle(i, mode, defaultAngle);\n let outerRadius = chart.getDataVisibility(i) ? scale.getDistanceFromCenterForValue(this.getParsed(i).r) : 0;\n angle = endAngle;\n if (reset) {\n if (animationOpts.animateScale) {\n outerRadius = 0;\n }\n if (animationOpts.animateRotate) {\n startAngle = endAngle = datasetStartAngle;\n }\n }\n const properties = {\n x: centerX,\n y: centerY,\n innerRadius: 0,\n outerRadius,\n startAngle,\n endAngle,\n options: this.resolveDataElementOptions(i, arc.active ? 'active' : mode)\n };\n this.updateElement(arc, i, properties, mode);\n }\n }\n countVisibleElements() {\n const meta = this._cachedMeta;\n let count = 0;\n meta.data.forEach((element, index)=>{\n if (!isNaN(this.getParsed(index).r) && this.chart.getDataVisibility(index)) {\n count++;\n }\n });\n return count;\n }\n _computeAngle(index, mode, defaultAngle) {\n return this.chart.getDataVisibility(index) ? toRadians(this.resolveDataElementOptions(index, mode).angle || defaultAngle) : 0;\n }\n}\n\nclass PieController extends DoughnutController {\n static id = 'pie';\n static defaults = {\n cutout: 0,\n rotation: 0,\n circumference: 360,\n radius: '100%'\n };\n}\n\nclass RadarController extends DatasetController {\n static id = 'radar';\n static defaults = {\n datasetElementType: 'line',\n dataElementType: 'point',\n indexAxis: 'r',\n showLine: true,\n elements: {\n line: {\n fill: 'start'\n }\n }\n };\n static overrides = {\n aspectRatio: 1,\n scales: {\n r: {\n type: 'radialLinear'\n }\n }\n };\n getLabelAndValue(index) {\n const vScale = this._cachedMeta.vScale;\n const parsed = this.getParsed(index);\n return {\n label: vScale.getLabels()[index],\n value: '' + vScale.getLabelForValue(parsed[vScale.axis])\n };\n }\n parseObjectData(meta, data, start, count) {\n return _parseObjectDataRadialScale.bind(this)(meta, data, start, count);\n }\n update(mode) {\n const meta = this._cachedMeta;\n const line = meta.dataset;\n const points = meta.data || [];\n const labels = meta.iScale.getLabels();\n line.points = points;\n if (mode !== 'resize') {\n const options = this.resolveDatasetElementOptions(mode);\n if (!this.options.showLine) {\n options.borderWidth = 0;\n }\n const properties = {\n _loop: true,\n _fullLoop: labels.length === points.length,\n options\n };\n this.updateElement(line, undefined, properties, mode);\n }\n this.updateElements(points, 0, points.length, mode);\n }\n updateElements(points, start, count, mode) {\n const scale = this._cachedMeta.rScale;\n const reset = mode === 'reset';\n for(let i = start; i < start + count; i++){\n const point = points[i];\n const options = this.resolveDataElementOptions(i, point.active ? 'active' : mode);\n const pointPosition = scale.getPointPositionForValue(i, this.getParsed(i).r);\n const x = reset ? scale.xCenter : pointPosition.x;\n const y = reset ? scale.yCenter : pointPosition.y;\n const properties = {\n x,\n y,\n angle: pointPosition.angle,\n skip: isNaN(x) || isNaN(y),\n options\n };\n this.updateElement(point, i, properties, mode);\n }\n }\n}\n\nclass ScatterController extends DatasetController {\n static id = 'scatter';\n static defaults = {\n datasetElementType: false,\n dataElementType: 'point',\n showLine: false,\n fill: false\n };\n static overrides = {\n interaction: {\n mode: 'point'\n },\n scales: {\n x: {\n type: 'linear'\n },\n y: {\n type: 'linear'\n }\n }\n };\n getLabelAndValue(index) {\n const meta = this._cachedMeta;\n const labels = this.chart.data.labels || [];\n const { xScale , yScale } = meta;\n const parsed = this.getParsed(index);\n const x = xScale.getLabelForValue(parsed.x);\n const y = yScale.getLabelForValue(parsed.y);\n return {\n label: labels[index] || '',\n value: '(' + x + ', ' + y + ')'\n };\n }\n update(mode) {\n const meta = this._cachedMeta;\n const { data: points = [] } = meta;\n const animationsDisabled = this.chart._animationsDisabled;\n let { start , count } = _getStartAndCountOfVisiblePoints(meta, points, animationsDisabled);\n this._drawStart = start;\n this._drawCount = count;\n if (_scaleRangesChanged(meta)) {\n start = 0;\n count = points.length;\n }\n if (this.options.showLine) {\n const { dataset: line , _dataset } = meta;\n line._chart = this.chart;\n line._datasetIndex = this.index;\n line._decimated = !!_dataset._decimated;\n line.points = points;\n const options = this.resolveDatasetElementOptions(mode);\n options.segment = this.options.segment;\n this.updateElement(line, undefined, {\n animated: !animationsDisabled,\n options\n }, mode);\n }\n this.updateElements(points, start, count, mode);\n }\n addElements() {\n const { showLine } = this.options;\n if (!this.datasetElementType && showLine) {\n this.datasetElementType = this.chart.registry.getElement('line');\n }\n super.addElements();\n }\n updateElements(points, start, count, mode) {\n const reset = mode === 'reset';\n const { iScale , vScale , _stacked , _dataset } = this._cachedMeta;\n const firstOpts = this.resolveDataElementOptions(start, mode);\n const sharedOptions = this.getSharedOptions(firstOpts);\n const includeOptions = this.includeOptions(mode, sharedOptions);\n const iAxis = iScale.axis;\n const vAxis = vScale.axis;\n const { spanGaps , segment } = this.options;\n const maxGapLength = isNumber(spanGaps) ? spanGaps : Number.POSITIVE_INFINITY;\n const directUpdate = this.chart._animationsDisabled || reset || mode === 'none';\n let prevParsed = start > 0 && this.getParsed(start - 1);\n for(let i = start; i < start + count; ++i){\n const point = points[i];\n const parsed = this.getParsed(i);\n const properties = directUpdate ? point : {};\n const nullData = isNullOrUndef(parsed[vAxis]);\n const iPixel = properties[iAxis] = iScale.getPixelForValue(parsed[iAxis], i);\n const vPixel = properties[vAxis] = reset || nullData ? vScale.getBasePixel() : vScale.getPixelForValue(_stacked ? this.applyStack(vScale, parsed, _stacked) : parsed[vAxis], i);\n properties.skip = isNaN(iPixel) || isNaN(vPixel) || nullData;\n properties.stop = i > 0 && Math.abs(parsed[iAxis] - prevParsed[iAxis]) > maxGapLength;\n if (segment) {\n properties.parsed = parsed;\n properties.raw = _dataset.data[i];\n }\n if (includeOptions) {\n properties.options = sharedOptions || this.resolveDataElementOptions(i, point.active ? 'active' : mode);\n }\n if (!directUpdate) {\n this.updateElement(point, i, properties, mode);\n }\n prevParsed = parsed;\n }\n this.updateSharedOptions(sharedOptions, mode, firstOpts);\n }\n getMaxOverflow() {\n const meta = this._cachedMeta;\n const data = meta.data || [];\n if (!this.options.showLine) {\n let max = 0;\n for(let i = data.length - 1; i >= 0; --i){\n max = Math.max(max, data[i].size(this.resolveDataElementOptions(i)) / 2);\n }\n return max > 0 && max;\n }\n const dataset = meta.dataset;\n const border = dataset.options && dataset.options.borderWidth || 0;\n if (!data.length) {\n return border;\n }\n const firstPoint = data[0].size(this.resolveDataElementOptions(0));\n const lastPoint = data[data.length - 1].size(this.resolveDataElementOptions(data.length - 1));\n return Math.max(border, firstPoint, lastPoint) / 2;\n }\n}\n\nvar controllers = /*#__PURE__*/Object.freeze({\n__proto__: null,\nBarController: BarController,\nBubbleController: BubbleController,\nDoughnutController: DoughnutController,\nLineController: LineController,\nPolarAreaController: PolarAreaController,\nPieController: PieController,\nRadarController: RadarController,\nScatterController: ScatterController\n});\n\nfunction clipArc(ctx, element, endAngle) {\n const { startAngle , pixelMargin , x , y , outerRadius , innerRadius } = element;\n let angleMargin = pixelMargin / outerRadius;\n // Draw an inner border by clipping the arc and drawing a double-width border\n // Enlarge the clipping arc by 0.33 pixels to eliminate glitches between borders\n ctx.beginPath();\n ctx.arc(x, y, outerRadius, startAngle - angleMargin, endAngle + angleMargin);\n if (innerRadius > pixelMargin) {\n angleMargin = pixelMargin / innerRadius;\n ctx.arc(x, y, innerRadius, endAngle + angleMargin, startAngle - angleMargin, true);\n } else {\n ctx.arc(x, y, pixelMargin, endAngle + HALF_PI, startAngle - HALF_PI);\n }\n ctx.closePath();\n ctx.clip();\n}\nfunction toRadiusCorners(value) {\n return _readValueToProps(value, [\n 'outerStart',\n 'outerEnd',\n 'innerStart',\n 'innerEnd'\n ]);\n}\n/**\n * Parse border radius from the provided options\n */ function parseBorderRadius$1(arc, innerRadius, outerRadius, angleDelta) {\n const o = toRadiusCorners(arc.options.borderRadius);\n const halfThickness = (outerRadius - innerRadius) / 2;\n const innerLimit = Math.min(halfThickness, angleDelta * innerRadius / 2);\n // Outer limits are complicated. We want to compute the available angular distance at\n // a radius of outerRadius - borderRadius because for small angular distances, this term limits.\n // We compute at r = outerRadius - borderRadius because this circle defines the center of the border corners.\n //\n // If the borderRadius is large, that value can become negative.\n // This causes the outer borders to lose their radius entirely, which is rather unexpected. To solve that, if borderRadius > outerRadius\n // we know that the thickness term will dominate and compute the limits at that point\n const computeOuterLimit = (val)=>{\n const outerArcLimit = (outerRadius - Math.min(halfThickness, val)) * angleDelta / 2;\n return _limitValue(val, 0, Math.min(halfThickness, outerArcLimit));\n };\n return {\n outerStart: computeOuterLimit(o.outerStart),\n outerEnd: computeOuterLimit(o.outerEnd),\n innerStart: _limitValue(o.innerStart, 0, innerLimit),\n innerEnd: _limitValue(o.innerEnd, 0, innerLimit)\n };\n}\n/**\n * Convert (r, 𝜃) to (x, y)\n */ function rThetaToXY(r, theta, x, y) {\n return {\n x: x + r * Math.cos(theta),\n y: y + r * Math.sin(theta)\n };\n}\n/**\n * Path the arc, respecting border radius by separating into left and right halves.\n *\n * Start End\n *\n * 1--->a--->2 Outer\n * / \\\n * 8 3\n * | |\n * | |\n * 7 4\n * \\ /\n * 6<---b<---5 Inner\n */ function pathArc(ctx, element, offset, spacing, end, circular) {\n const { x , y , startAngle: start , pixelMargin , innerRadius: innerR } = element;\n const outerRadius = Math.max(element.outerRadius + spacing + offset - pixelMargin, 0);\n const innerRadius = innerR > 0 ? innerR + spacing + offset + pixelMargin : 0;\n let spacingOffset = 0;\n const alpha = end - start;\n if (spacing) {\n // When spacing is present, it is the same for all items\n // So we adjust the start and end angle of the arc such that\n // the distance is the same as it would be without the spacing\n const noSpacingInnerRadius = innerR > 0 ? innerR - spacing : 0;\n const noSpacingOuterRadius = outerRadius > 0 ? outerRadius - spacing : 0;\n const avNogSpacingRadius = (noSpacingInnerRadius + noSpacingOuterRadius) / 2;\n const adjustedAngle = avNogSpacingRadius !== 0 ? alpha * avNogSpacingRadius / (avNogSpacingRadius + spacing) : alpha;\n spacingOffset = (alpha - adjustedAngle) / 2;\n }\n const beta = Math.max(0.001, alpha * outerRadius - offset / PI) / outerRadius;\n const angleOffset = (alpha - beta) / 2;\n const startAngle = start + angleOffset + spacingOffset;\n const endAngle = end - angleOffset - spacingOffset;\n const { outerStart , outerEnd , innerStart , innerEnd } = parseBorderRadius$1(element, innerRadius, outerRadius, endAngle - startAngle);\n const outerStartAdjustedRadius = outerRadius - outerStart;\n const outerEndAdjustedRadius = outerRadius - outerEnd;\n const outerStartAdjustedAngle = startAngle + outerStart / outerStartAdjustedRadius;\n const outerEndAdjustedAngle = endAngle - outerEnd / outerEndAdjustedRadius;\n const innerStartAdjustedRadius = innerRadius + innerStart;\n const innerEndAdjustedRadius = innerRadius + innerEnd;\n const innerStartAdjustedAngle = startAngle + innerStart / innerStartAdjustedRadius;\n const innerEndAdjustedAngle = endAngle - innerEnd / innerEndAdjustedRadius;\n ctx.beginPath();\n if (circular) {\n // The first arc segments from point 1 to point a to point 2\n const outerMidAdjustedAngle = (outerStartAdjustedAngle + outerEndAdjustedAngle) / 2;\n ctx.arc(x, y, outerRadius, outerStartAdjustedAngle, outerMidAdjustedAngle);\n ctx.arc(x, y, outerRadius, outerMidAdjustedAngle, outerEndAdjustedAngle);\n // The corner segment from point 2 to point 3\n if (outerEnd > 0) {\n const pCenter = rThetaToXY(outerEndAdjustedRadius, outerEndAdjustedAngle, x, y);\n ctx.arc(pCenter.x, pCenter.y, outerEnd, outerEndAdjustedAngle, endAngle + HALF_PI);\n }\n // The line from point 3 to point 4\n const p4 = rThetaToXY(innerEndAdjustedRadius, endAngle, x, y);\n ctx.lineTo(p4.x, p4.y);\n // The corner segment from point 4 to point 5\n if (innerEnd > 0) {\n const pCenter1 = rThetaToXY(innerEndAdjustedRadius, innerEndAdjustedAngle, x, y);\n ctx.arc(pCenter1.x, pCenter1.y, innerEnd, endAngle + HALF_PI, innerEndAdjustedAngle + Math.PI);\n }\n // The inner arc from point 5 to point b to point 6\n const innerMidAdjustedAngle = (endAngle - innerEnd / innerRadius + (startAngle + innerStart / innerRadius)) / 2;\n ctx.arc(x, y, innerRadius, endAngle - innerEnd / innerRadius, innerMidAdjustedAngle, true);\n ctx.arc(x, y, innerRadius, innerMidAdjustedAngle, startAngle + innerStart / innerRadius, true);\n // The corner segment from point 6 to point 7\n if (innerStart > 0) {\n const pCenter2 = rThetaToXY(innerStartAdjustedRadius, innerStartAdjustedAngle, x, y);\n ctx.arc(pCenter2.x, pCenter2.y, innerStart, innerStartAdjustedAngle + Math.PI, startAngle - HALF_PI);\n }\n // The line from point 7 to point 8\n const p8 = rThetaToXY(outerStartAdjustedRadius, startAngle, x, y);\n ctx.lineTo(p8.x, p8.y);\n // The corner segment from point 8 to point 1\n if (outerStart > 0) {\n const pCenter3 = rThetaToXY(outerStartAdjustedRadius, outerStartAdjustedAngle, x, y);\n ctx.arc(pCenter3.x, pCenter3.y, outerStart, startAngle - HALF_PI, outerStartAdjustedAngle);\n }\n } else {\n ctx.moveTo(x, y);\n const outerStartX = Math.cos(outerStartAdjustedAngle) * outerRadius + x;\n const outerStartY = Math.sin(outerStartAdjustedAngle) * outerRadius + y;\n ctx.lineTo(outerStartX, outerStartY);\n const outerEndX = Math.cos(outerEndAdjustedAngle) * outerRadius + x;\n const outerEndY = Math.sin(outerEndAdjustedAngle) * outerRadius + y;\n ctx.lineTo(outerEndX, outerEndY);\n }\n ctx.closePath();\n}\nfunction drawArc(ctx, element, offset, spacing, circular) {\n const { fullCircles , startAngle , circumference } = element;\n let endAngle = element.endAngle;\n if (fullCircles) {\n pathArc(ctx, element, offset, spacing, endAngle, circular);\n for(let i = 0; i < fullCircles; ++i){\n ctx.fill();\n }\n if (!isNaN(circumference)) {\n endAngle = startAngle + (circumference % TAU || TAU);\n }\n }\n pathArc(ctx, element, offset, spacing, endAngle, circular);\n ctx.fill();\n return endAngle;\n}\nfunction drawBorder(ctx, element, offset, spacing, circular) {\n const { fullCircles , startAngle , circumference , options } = element;\n const { borderWidth , borderJoinStyle } = options;\n const inner = options.borderAlign === 'inner';\n if (!borderWidth) {\n return;\n }\n if (inner) {\n ctx.lineWidth = borderWidth * 2;\n ctx.lineJoin = borderJoinStyle || 'round';\n } else {\n ctx.lineWidth = borderWidth;\n ctx.lineJoin = borderJoinStyle || 'bevel';\n }\n let endAngle = element.endAngle;\n if (fullCircles) {\n pathArc(ctx, element, offset, spacing, endAngle, circular);\n for(let i = 0; i < fullCircles; ++i){\n ctx.stroke();\n }\n if (!isNaN(circumference)) {\n endAngle = startAngle + (circumference % TAU || TAU);\n }\n }\n if (inner) {\n clipArc(ctx, element, endAngle);\n }\n if (!fullCircles) {\n pathArc(ctx, element, offset, spacing, endAngle, circular);\n ctx.stroke();\n }\n}\nclass ArcElement extends Element {\n static id = 'arc';\n static defaults = {\n borderAlign: 'center',\n borderColor: '#fff',\n borderJoinStyle: undefined,\n borderRadius: 0,\n borderWidth: 2,\n offset: 0,\n spacing: 0,\n angle: undefined,\n circular: true\n };\n static defaultRoutes = {\n backgroundColor: 'backgroundColor'\n };\n constructor(cfg){\n super();\n this.options = undefined;\n this.circumference = undefined;\n this.startAngle = undefined;\n this.endAngle = undefined;\n this.innerRadius = undefined;\n this.outerRadius = undefined;\n this.pixelMargin = 0;\n this.fullCircles = 0;\n if (cfg) {\n Object.assign(this, cfg);\n }\n }\n inRange(chartX, chartY, useFinalPosition) {\n const point = this.getProps([\n 'x',\n 'y'\n ], useFinalPosition);\n const { angle , distance } = getAngleFromPoint(point, {\n x: chartX,\n y: chartY\n });\n const { startAngle , endAngle , innerRadius , outerRadius , circumference } = this.getProps([\n 'startAngle',\n 'endAngle',\n 'innerRadius',\n 'outerRadius',\n 'circumference'\n ], useFinalPosition);\n const rAdjust = this.options.spacing / 2;\n const _circumference = valueOrDefault(circumference, endAngle - startAngle);\n const betweenAngles = _circumference >= TAU || _angleBetween(angle, startAngle, endAngle);\n const withinRadius = _isBetween(distance, innerRadius + rAdjust, outerRadius + rAdjust);\n return betweenAngles && withinRadius;\n }\n getCenterPoint(useFinalPosition) {\n const { x , y , startAngle , endAngle , innerRadius , outerRadius } = this.getProps([\n 'x',\n 'y',\n 'startAngle',\n 'endAngle',\n 'innerRadius',\n 'outerRadius'\n ], useFinalPosition);\n const { offset , spacing } = this.options;\n const halfAngle = (startAngle + endAngle) / 2;\n const halfRadius = (innerRadius + outerRadius + spacing + offset) / 2;\n return {\n x: x + Math.cos(halfAngle) * halfRadius,\n y: y + Math.sin(halfAngle) * halfRadius\n };\n }\n tooltipPosition(useFinalPosition) {\n return this.getCenterPoint(useFinalPosition);\n }\n draw(ctx) {\n const { options , circumference } = this;\n const offset = (options.offset || 0) / 4;\n const spacing = (options.spacing || 0) / 2;\n const circular = options.circular;\n this.pixelMargin = options.borderAlign === 'inner' ? 0.33 : 0;\n this.fullCircles = circumference > TAU ? Math.floor(circumference / TAU) : 0;\n if (circumference === 0 || this.innerRadius < 0 || this.outerRadius < 0) {\n return;\n }\n ctx.save();\n const halfAngle = (this.startAngle + this.endAngle) / 2;\n ctx.translate(Math.cos(halfAngle) * offset, Math.sin(halfAngle) * offset);\n const fix = 1 - Math.sin(Math.min(PI, circumference || 0));\n const radiusOffset = offset * fix;\n ctx.fillStyle = options.backgroundColor;\n ctx.strokeStyle = options.borderColor;\n drawArc(ctx, this, radiusOffset, spacing, circular);\n drawBorder(ctx, this, radiusOffset, spacing, circular);\n ctx.restore();\n }\n}\n\nfunction setStyle(ctx, options, style = options) {\n ctx.lineCap = valueOrDefault(style.borderCapStyle, options.borderCapStyle);\n ctx.setLineDash(valueOrDefault(style.borderDash, options.borderDash));\n ctx.lineDashOffset = valueOrDefault(style.borderDashOffset, options.borderDashOffset);\n ctx.lineJoin = valueOrDefault(style.borderJoinStyle, options.borderJoinStyle);\n ctx.lineWidth = valueOrDefault(style.borderWidth, options.borderWidth);\n ctx.strokeStyle = valueOrDefault(style.borderColor, options.borderColor);\n}\nfunction lineTo(ctx, previous, target) {\n ctx.lineTo(target.x, target.y);\n}\nfunction getLineMethod(options) {\n if (options.stepped) {\n return _steppedLineTo;\n }\n if (options.tension || options.cubicInterpolationMode === 'monotone') {\n return _bezierCurveTo;\n }\n return lineTo;\n}\nfunction pathVars(points, segment, params = {}) {\n const count = points.length;\n const { start: paramsStart = 0 , end: paramsEnd = count - 1 } = params;\n const { start: segmentStart , end: segmentEnd } = segment;\n const start = Math.max(paramsStart, segmentStart);\n const end = Math.min(paramsEnd, segmentEnd);\n const outside = paramsStart < segmentStart && paramsEnd < segmentStart || paramsStart > segmentEnd && paramsEnd > segmentEnd;\n return {\n count,\n start,\n loop: segment.loop,\n ilen: end < start && !outside ? count + end - start : end - start\n };\n}\n function pathSegment(ctx, line, segment, params) {\n const { points , options } = line;\n const { count , start , loop , ilen } = pathVars(points, segment, params);\n const lineMethod = getLineMethod(options);\n let { move =true , reverse } = params || {};\n let i, point, prev;\n for(i = 0; i <= ilen; ++i){\n point = points[(start + (reverse ? ilen - i : i)) % count];\n if (point.skip) {\n continue;\n } else if (move) {\n ctx.moveTo(point.x, point.y);\n move = false;\n } else {\n lineMethod(ctx, prev, point, reverse, options.stepped);\n }\n prev = point;\n }\n if (loop) {\n point = points[(start + (reverse ? ilen : 0)) % count];\n lineMethod(ctx, prev, point, reverse, options.stepped);\n }\n return !!loop;\n}\n function fastPathSegment(ctx, line, segment, params) {\n const points = line.points;\n const { count , start , ilen } = pathVars(points, segment, params);\n const { move =true , reverse } = params || {};\n let avgX = 0;\n let countX = 0;\n let i, point, prevX, minY, maxY, lastY;\n const pointIndex = (index)=>(start + (reverse ? ilen - index : index)) % count;\n const drawX = ()=>{\n if (minY !== maxY) {\n ctx.lineTo(avgX, maxY);\n ctx.lineTo(avgX, minY);\n ctx.lineTo(avgX, lastY);\n }\n };\n if (move) {\n point = points[pointIndex(0)];\n ctx.moveTo(point.x, point.y);\n }\n for(i = 0; i <= ilen; ++i){\n point = points[pointIndex(i)];\n if (point.skip) {\n continue;\n }\n const x = point.x;\n const y = point.y;\n const truncX = x | 0;\n if (truncX === prevX) {\n if (y < minY) {\n minY = y;\n } else if (y > maxY) {\n maxY = y;\n }\n avgX = (countX * avgX + x) / ++countX;\n } else {\n drawX();\n ctx.lineTo(x, y);\n prevX = truncX;\n countX = 0;\n minY = maxY = y;\n }\n lastY = y;\n }\n drawX();\n}\n function _getSegmentMethod(line) {\n const opts = line.options;\n const borderDash = opts.borderDash && opts.borderDash.length;\n const useFastPath = !line._decimated && !line._loop && !opts.tension && opts.cubicInterpolationMode !== 'monotone' && !opts.stepped && !borderDash;\n return useFastPath ? fastPathSegment : pathSegment;\n}\n function _getInterpolationMethod(options) {\n if (options.stepped) {\n return _steppedInterpolation;\n }\n if (options.tension || options.cubicInterpolationMode === 'monotone') {\n return _bezierInterpolation;\n }\n return _pointInLine;\n}\nfunction strokePathWithCache(ctx, line, start, count) {\n let path = line._path;\n if (!path) {\n path = line._path = new Path2D();\n if (line.path(path, start, count)) {\n path.closePath();\n }\n }\n setStyle(ctx, line.options);\n ctx.stroke(path);\n}\nfunction strokePathDirect(ctx, line, start, count) {\n const { segments , options } = line;\n const segmentMethod = _getSegmentMethod(line);\n for (const segment of segments){\n setStyle(ctx, options, segment.style);\n ctx.beginPath();\n if (segmentMethod(ctx, line, segment, {\n start,\n end: start + count - 1\n })) {\n ctx.closePath();\n }\n ctx.stroke();\n }\n}\nconst usePath2D = typeof Path2D === 'function';\nfunction draw(ctx, line, start, count) {\n if (usePath2D && !line.options.segment) {\n strokePathWithCache(ctx, line, start, count);\n } else {\n strokePathDirect(ctx, line, start, count);\n }\n}\nclass LineElement extends Element {\n static id = 'line';\n static defaults = {\n borderCapStyle: 'butt',\n borderDash: [],\n borderDashOffset: 0,\n borderJoinStyle: 'miter',\n borderWidth: 3,\n capBezierPoints: true,\n cubicInterpolationMode: 'default',\n fill: false,\n spanGaps: false,\n stepped: false,\n tension: 0\n };\n static defaultRoutes = {\n backgroundColor: 'backgroundColor',\n borderColor: 'borderColor'\n };\n static descriptors = {\n _scriptable: true,\n _indexable: (name)=>name !== 'borderDash' && name !== 'fill'\n };\n constructor(cfg){\n super();\n this.animated = true;\n this.options = undefined;\n this._chart = undefined;\n this._loop = undefined;\n this._fullLoop = undefined;\n this._path = undefined;\n this._points = undefined;\n this._segments = undefined;\n this._decimated = false;\n this._pointsUpdated = false;\n this._datasetIndex = undefined;\n if (cfg) {\n Object.assign(this, cfg);\n }\n }\n updateControlPoints(chartArea, indexAxis) {\n const options = this.options;\n if ((options.tension || options.cubicInterpolationMode === 'monotone') && !options.stepped && !this._pointsUpdated) {\n const loop = options.spanGaps ? this._loop : this._fullLoop;\n _updateBezierControlPoints(this._points, options, chartArea, loop, indexAxis);\n this._pointsUpdated = true;\n }\n }\n set points(points) {\n this._points = points;\n delete this._segments;\n delete this._path;\n this._pointsUpdated = false;\n }\n get points() {\n return this._points;\n }\n get segments() {\n return this._segments || (this._segments = _computeSegments(this, this.options.segment));\n }\n first() {\n const segments = this.segments;\n const points = this.points;\n return segments.length && points[segments[0].start];\n }\n last() {\n const segments = this.segments;\n const points = this.points;\n const count = segments.length;\n return count && points[segments[count - 1].end];\n }\n interpolate(point, property) {\n const options = this.options;\n const value = point[property];\n const points = this.points;\n const segments = _boundSegments(this, {\n property,\n start: value,\n end: value\n });\n if (!segments.length) {\n return;\n }\n const result = [];\n const _interpolate = _getInterpolationMethod(options);\n let i, ilen;\n for(i = 0, ilen = segments.length; i < ilen; ++i){\n const { start , end } = segments[i];\n const p1 = points[start];\n const p2 = points[end];\n if (p1 === p2) {\n result.push(p1);\n continue;\n }\n const t = Math.abs((value - p1[property]) / (p2[property] - p1[property]));\n const interpolated = _interpolate(p1, p2, t, options.stepped);\n interpolated[property] = point[property];\n result.push(interpolated);\n }\n return result.length === 1 ? result[0] : result;\n }\n pathSegment(ctx, segment, params) {\n const segmentMethod = _getSegmentMethod(this);\n return segmentMethod(ctx, this, segment, params);\n }\n path(ctx, start, count) {\n const segments = this.segments;\n const segmentMethod = _getSegmentMethod(this);\n let loop = this._loop;\n start = start || 0;\n count = count || this.points.length - start;\n for (const segment of segments){\n loop &= segmentMethod(ctx, this, segment, {\n start,\n end: start + count - 1\n });\n }\n return !!loop;\n }\n draw(ctx, chartArea, start, count) {\n const options = this.options || {};\n const points = this.points || [];\n if (points.length && options.borderWidth) {\n ctx.save();\n draw(ctx, this, start, count);\n ctx.restore();\n }\n if (this.animated) {\n this._pointsUpdated = false;\n this._path = undefined;\n }\n }\n}\n\nfunction inRange$1(el, pos, axis, useFinalPosition) {\n const options = el.options;\n const { [axis]: value } = el.getProps([\n axis\n ], useFinalPosition);\n return Math.abs(pos - value) < options.radius + options.hitRadius;\n}\nclass PointElement extends Element {\n static id = 'point';\n /**\n * @type {any}\n */ static defaults = {\n borderWidth: 1,\n hitRadius: 1,\n hoverBorderWidth: 1,\n hoverRadius: 4,\n pointStyle: 'circle',\n radius: 3,\n rotation: 0\n };\n /**\n * @type {any}\n */ static defaultRoutes = {\n backgroundColor: 'backgroundColor',\n borderColor: 'borderColor'\n };\n constructor(cfg){\n super();\n this.options = undefined;\n this.parsed = undefined;\n this.skip = undefined;\n this.stop = undefined;\n if (cfg) {\n Object.assign(this, cfg);\n }\n }\n inRange(mouseX, mouseY, useFinalPosition) {\n const options = this.options;\n const { x , y } = this.getProps([\n 'x',\n 'y'\n ], useFinalPosition);\n return Math.pow(mouseX - x, 2) + Math.pow(mouseY - y, 2) < Math.pow(options.hitRadius + options.radius, 2);\n }\n inXRange(mouseX, useFinalPosition) {\n return inRange$1(this, mouseX, 'x', useFinalPosition);\n }\n inYRange(mouseY, useFinalPosition) {\n return inRange$1(this, mouseY, 'y', useFinalPosition);\n }\n getCenterPoint(useFinalPosition) {\n const { x , y } = this.getProps([\n 'x',\n 'y'\n ], useFinalPosition);\n return {\n x,\n y\n };\n }\n size(options) {\n options = options || this.options || {};\n let radius = options.radius || 0;\n radius = Math.max(radius, radius && options.hoverRadius || 0);\n const borderWidth = radius && options.borderWidth || 0;\n return (radius + borderWidth) * 2;\n }\n draw(ctx, area) {\n const options = this.options;\n if (this.skip || options.radius < 0.1 || !_isPointInArea(this, area, this.size(options) / 2)) {\n return;\n }\n ctx.strokeStyle = options.borderColor;\n ctx.lineWidth = options.borderWidth;\n ctx.fillStyle = options.backgroundColor;\n drawPoint(ctx, options, this.x, this.y);\n }\n getRange() {\n const options = this.options || {};\n // @ts-expect-error Fallbacks should never be hit in practice\n return options.radius + options.hitRadius;\n }\n}\n\nfunction getBarBounds(bar, useFinalPosition) {\n const { x , y , base , width , height } = bar.getProps([\n 'x',\n 'y',\n 'base',\n 'width',\n 'height'\n ], useFinalPosition);\n let left, right, top, bottom, half;\n if (bar.horizontal) {\n half = height / 2;\n left = Math.min(x, base);\n right = Math.max(x, base);\n top = y - half;\n bottom = y + half;\n } else {\n half = width / 2;\n left = x - half;\n right = x + half;\n top = Math.min(y, base);\n bottom = Math.max(y, base);\n }\n return {\n left,\n top,\n right,\n bottom\n };\n}\nfunction skipOrLimit(skip, value, min, max) {\n return skip ? 0 : _limitValue(value, min, max);\n}\nfunction parseBorderWidth(bar, maxW, maxH) {\n const value = bar.options.borderWidth;\n const skip = bar.borderSkipped;\n const o = toTRBL(value);\n return {\n t: skipOrLimit(skip.top, o.top, 0, maxH),\n r: skipOrLimit(skip.right, o.right, 0, maxW),\n b: skipOrLimit(skip.bottom, o.bottom, 0, maxH),\n l: skipOrLimit(skip.left, o.left, 0, maxW)\n };\n}\nfunction parseBorderRadius(bar, maxW, maxH) {\n const { enableBorderRadius } = bar.getProps([\n 'enableBorderRadius'\n ]);\n const value = bar.options.borderRadius;\n const o = toTRBLCorners(value);\n const maxR = Math.min(maxW, maxH);\n const skip = bar.borderSkipped;\n const enableBorder = enableBorderRadius || isObject(value);\n return {\n topLeft: skipOrLimit(!enableBorder || skip.top || skip.left, o.topLeft, 0, maxR),\n topRight: skipOrLimit(!enableBorder || skip.top || skip.right, o.topRight, 0, maxR),\n bottomLeft: skipOrLimit(!enableBorder || skip.bottom || skip.left, o.bottomLeft, 0, maxR),\n bottomRight: skipOrLimit(!enableBorder || skip.bottom || skip.right, o.bottomRight, 0, maxR)\n };\n}\nfunction boundingRects(bar) {\n const bounds = getBarBounds(bar);\n const width = bounds.right - bounds.left;\n const height = bounds.bottom - bounds.top;\n const border = parseBorderWidth(bar, width / 2, height / 2);\n const radius = parseBorderRadius(bar, width / 2, height / 2);\n return {\n outer: {\n x: bounds.left,\n y: bounds.top,\n w: width,\n h: height,\n radius\n },\n inner: {\n x: bounds.left + border.l,\n y: bounds.top + border.t,\n w: width - border.l - border.r,\n h: height - border.t - border.b,\n radius: {\n topLeft: Math.max(0, radius.topLeft - Math.max(border.t, border.l)),\n topRight: Math.max(0, radius.topRight - Math.max(border.t, border.r)),\n bottomLeft: Math.max(0, radius.bottomLeft - Math.max(border.b, border.l)),\n bottomRight: Math.max(0, radius.bottomRight - Math.max(border.b, border.r))\n }\n }\n };\n}\nfunction inRange(bar, x, y, useFinalPosition) {\n const skipX = x === null;\n const skipY = y === null;\n const skipBoth = skipX && skipY;\n const bounds = bar && !skipBoth && getBarBounds(bar, useFinalPosition);\n return bounds && (skipX || _isBetween(x, bounds.left, bounds.right)) && (skipY || _isBetween(y, bounds.top, bounds.bottom));\n}\nfunction hasRadius(radius) {\n return radius.topLeft || radius.topRight || radius.bottomLeft || radius.bottomRight;\n}\n function addNormalRectPath(ctx, rect) {\n ctx.rect(rect.x, rect.y, rect.w, rect.h);\n}\nfunction inflateRect(rect, amount, refRect = {}) {\n const x = rect.x !== refRect.x ? -amount : 0;\n const y = rect.y !== refRect.y ? -amount : 0;\n const w = (rect.x + rect.w !== refRect.x + refRect.w ? amount : 0) - x;\n const h = (rect.y + rect.h !== refRect.y + refRect.h ? amount : 0) - y;\n return {\n x: rect.x + x,\n y: rect.y + y,\n w: rect.w + w,\n h: rect.h + h,\n radius: rect.radius\n };\n}\nclass BarElement extends Element {\n static id = 'bar';\n static defaults = {\n borderSkipped: 'start',\n borderWidth: 0,\n borderRadius: 0,\n inflateAmount: 'auto',\n pointStyle: undefined\n };\n static defaultRoutes = {\n backgroundColor: 'backgroundColor',\n borderColor: 'borderColor'\n };\n constructor(cfg){\n super();\n this.options = undefined;\n this.horizontal = undefined;\n this.base = undefined;\n this.width = undefined;\n this.height = undefined;\n this.inflateAmount = undefined;\n if (cfg) {\n Object.assign(this, cfg);\n }\n }\n draw(ctx) {\n const { inflateAmount , options: { borderColor , backgroundColor } } = this;\n const { inner , outer } = boundingRects(this);\n const addRectPath = hasRadius(outer.radius) ? addRoundedRectPath : addNormalRectPath;\n ctx.save();\n if (outer.w !== inner.w || outer.h !== inner.h) {\n ctx.beginPath();\n addRectPath(ctx, inflateRect(outer, inflateAmount, inner));\n ctx.clip();\n addRectPath(ctx, inflateRect(inner, -inflateAmount, outer));\n ctx.fillStyle = borderColor;\n ctx.fill('evenodd');\n }\n ctx.beginPath();\n addRectPath(ctx, inflateRect(inner, inflateAmount));\n ctx.fillStyle = backgroundColor;\n ctx.fill();\n ctx.restore();\n }\n inRange(mouseX, mouseY, useFinalPosition) {\n return inRange(this, mouseX, mouseY, useFinalPosition);\n }\n inXRange(mouseX, useFinalPosition) {\n return inRange(this, mouseX, null, useFinalPosition);\n }\n inYRange(mouseY, useFinalPosition) {\n return inRange(this, null, mouseY, useFinalPosition);\n }\n getCenterPoint(useFinalPosition) {\n const { x , y , base , horizontal } = this.getProps([\n 'x',\n 'y',\n 'base',\n 'horizontal'\n ], useFinalPosition);\n return {\n x: horizontal ? (x + base) / 2 : x,\n y: horizontal ? y : (y + base) / 2\n };\n }\n getRange(axis) {\n return axis === 'x' ? this.width / 2 : this.height / 2;\n }\n}\n\nvar elements = /*#__PURE__*/Object.freeze({\n__proto__: null,\nArcElement: ArcElement,\nLineElement: LineElement,\nPointElement: PointElement,\nBarElement: BarElement\n});\n\nconst addIfString = (labels, raw, index, addedLabels)=>{\n if (typeof raw === 'string') {\n index = labels.push(raw) - 1;\n addedLabels.unshift({\n index,\n label: raw\n });\n } else if (isNaN(raw)) {\n index = null;\n }\n return index;\n};\nfunction findOrAddLabel(labels, raw, index, addedLabels) {\n const first = labels.indexOf(raw);\n if (first === -1) {\n return addIfString(labels, raw, index, addedLabels);\n }\n const last = labels.lastIndexOf(raw);\n return first !== last ? index : first;\n}\nconst validIndex = (index, max)=>index === null ? null : _limitValue(Math.round(index), 0, max);\nfunction _getLabelForValue(value) {\n const labels = this.getLabels();\n if (value >= 0 && value < labels.length) {\n return labels[value];\n }\n return value;\n}\nclass CategoryScale extends Scale {\n static id = 'category';\n static defaults = {\n ticks: {\n callback: _getLabelForValue\n }\n };\n constructor(cfg){\n super(cfg);\n this._startValue = undefined;\n this._valueRange = 0;\n this._addedLabels = [];\n }\n init(scaleOptions) {\n const added = this._addedLabels;\n if (added.length) {\n const labels = this.getLabels();\n for (const { index , label } of added){\n if (labels[index] === label) {\n labels.splice(index, 1);\n }\n }\n this._addedLabels = [];\n }\n super.init(scaleOptions);\n }\n parse(raw, index) {\n if (isNullOrUndef(raw)) {\n return null;\n }\n const labels = this.getLabels();\n index = isFinite(index) && labels[index] === raw ? index : findOrAddLabel(labels, raw, valueOrDefault(index, raw), this._addedLabels);\n return validIndex(index, labels.length - 1);\n }\n determineDataLimits() {\n const { minDefined , maxDefined } = this.getUserBounds();\n let { min , max } = this.getMinMax(true);\n if (this.options.bounds === 'ticks') {\n if (!minDefined) {\n min = 0;\n }\n if (!maxDefined) {\n max = this.getLabels().length - 1;\n }\n }\n this.min = min;\n this.max = max;\n }\n buildTicks() {\n const min = this.min;\n const max = this.max;\n const offset = this.options.offset;\n const ticks = [];\n let labels = this.getLabels();\n labels = min === 0 && max === labels.length - 1 ? labels : labels.slice(min, max + 1);\n this._valueRange = Math.max(labels.length - (offset ? 0 : 1), 1);\n this._startValue = this.min - (offset ? 0.5 : 0);\n for(let value = min; value <= max; value++){\n ticks.push({\n value\n });\n }\n return ticks;\n }\n getLabelForValue(value) {\n return _getLabelForValue.call(this, value);\n }\n configure() {\n super.configure();\n if (!this.isHorizontal()) {\n this._reversePixels = !this._reversePixels;\n }\n }\n getPixelForValue(value) {\n if (typeof value !== 'number') {\n value = this.parse(value);\n }\n return value === null ? NaN : this.getPixelForDecimal((value - this._startValue) / this._valueRange);\n }\n getPixelForTick(index) {\n const ticks = this.ticks;\n if (index < 0 || index > ticks.length - 1) {\n return null;\n }\n return this.getPixelForValue(ticks[index].value);\n }\n getValueForPixel(pixel) {\n return Math.round(this._startValue + this.getDecimalForPixel(pixel) * this._valueRange);\n }\n getBasePixel() {\n return this.bottom;\n }\n}\n\nfunction generateTicks$1(generationOptions, dataRange) {\n const ticks = [];\n const MIN_SPACING = 1e-14;\n const { bounds , step , min , max , precision , count , maxTicks , maxDigits , includeBounds } = generationOptions;\n const unit = step || 1;\n const maxSpaces = maxTicks - 1;\n const { min: rmin , max: rmax } = dataRange;\n const minDefined = !isNullOrUndef(min);\n const maxDefined = !isNullOrUndef(max);\n const countDefined = !isNullOrUndef(count);\n const minSpacing = (rmax - rmin) / (maxDigits + 1);\n let spacing = niceNum((rmax - rmin) / maxSpaces / unit) * unit;\n let factor, niceMin, niceMax, numSpaces;\n if (spacing < MIN_SPACING && !minDefined && !maxDefined) {\n return [\n {\n value: rmin\n },\n {\n value: rmax\n }\n ];\n }\n numSpaces = Math.ceil(rmax / spacing) - Math.floor(rmin / spacing);\n if (numSpaces > maxSpaces) {\n spacing = niceNum(numSpaces * spacing / maxSpaces / unit) * unit;\n }\n if (!isNullOrUndef(precision)) {\n factor = Math.pow(10, precision);\n spacing = Math.ceil(spacing * factor) / factor;\n }\n if (bounds === 'ticks') {\n niceMin = Math.floor(rmin / spacing) * spacing;\n niceMax = Math.ceil(rmax / spacing) * spacing;\n } else {\n niceMin = rmin;\n niceMax = rmax;\n }\n if (minDefined && maxDefined && step && almostWhole((max - min) / step, spacing / 1000)) {\n numSpaces = Math.round(Math.min((max - min) / spacing, maxTicks));\n spacing = (max - min) / numSpaces;\n niceMin = min;\n niceMax = max;\n } else if (countDefined) {\n niceMin = minDefined ? min : niceMin;\n niceMax = maxDefined ? max : niceMax;\n numSpaces = count - 1;\n spacing = (niceMax - niceMin) / numSpaces;\n } else {\n numSpaces = (niceMax - niceMin) / spacing;\n if (almostEquals(numSpaces, Math.round(numSpaces), spacing / 1000)) {\n numSpaces = Math.round(numSpaces);\n } else {\n numSpaces = Math.ceil(numSpaces);\n }\n }\n const decimalPlaces = Math.max(_decimalPlaces(spacing), _decimalPlaces(niceMin));\n factor = Math.pow(10, isNullOrUndef(precision) ? decimalPlaces : precision);\n niceMin = Math.round(niceMin * factor) / factor;\n niceMax = Math.round(niceMax * factor) / factor;\n let j = 0;\n if (minDefined) {\n if (includeBounds && niceMin !== min) {\n ticks.push({\n value: min\n });\n if (niceMin < min) {\n j++;\n }\n if (almostEquals(Math.round((niceMin + j * spacing) * factor) / factor, min, relativeLabelSize(min, minSpacing, generationOptions))) {\n j++;\n }\n } else if (niceMin < min) {\n j++;\n }\n }\n for(; j < numSpaces; ++j){\n ticks.push({\n value: Math.round((niceMin + j * spacing) * factor) / factor\n });\n }\n if (maxDefined && includeBounds && niceMax !== max) {\n if (ticks.length && almostEquals(ticks[ticks.length - 1].value, max, relativeLabelSize(max, minSpacing, generationOptions))) {\n ticks[ticks.length - 1].value = max;\n } else {\n ticks.push({\n value: max\n });\n }\n } else if (!maxDefined || niceMax === max) {\n ticks.push({\n value: niceMax\n });\n }\n return ticks;\n}\nfunction relativeLabelSize(value, minSpacing, { horizontal , minRotation }) {\n const rad = toRadians(minRotation);\n const ratio = (horizontal ? Math.sin(rad) : Math.cos(rad)) || 0.001;\n const length = 0.75 * minSpacing * ('' + value).length;\n return Math.min(minSpacing / ratio, length);\n}\nclass LinearScaleBase extends Scale {\n constructor(cfg){\n super(cfg);\n this.start = undefined;\n this.end = undefined;\n this._startValue = undefined;\n this._endValue = undefined;\n this._valueRange = 0;\n }\n parse(raw, index) {\n if (isNullOrUndef(raw)) {\n return null;\n }\n if ((typeof raw === 'number' || raw instanceof Number) && !isFinite(+raw)) {\n return null;\n }\n return +raw;\n }\n handleTickRangeOptions() {\n const { beginAtZero } = this.options;\n const { minDefined , maxDefined } = this.getUserBounds();\n let { min , max } = this;\n const setMin = (v)=>min = minDefined ? min : v;\n const setMax = (v)=>max = maxDefined ? max : v;\n if (beginAtZero) {\n const minSign = sign(min);\n const maxSign = sign(max);\n if (minSign < 0 && maxSign < 0) {\n setMax(0);\n } else if (minSign > 0 && maxSign > 0) {\n setMin(0);\n }\n }\n if (min === max) {\n let offset = max === 0 ? 1 : Math.abs(max * 0.05);\n setMax(max + offset);\n if (!beginAtZero) {\n setMin(min - offset);\n }\n }\n this.min = min;\n this.max = max;\n }\n getTickLimit() {\n const tickOpts = this.options.ticks;\n let { maxTicksLimit , stepSize } = tickOpts;\n let maxTicks;\n if (stepSize) {\n maxTicks = Math.ceil(this.max / stepSize) - Math.floor(this.min / stepSize) + 1;\n if (maxTicks > 1000) {\n console.warn(`scales.${this.id}.ticks.stepSize: ${stepSize} would result generating up to ${maxTicks} ticks. Limiting to 1000.`);\n maxTicks = 1000;\n }\n } else {\n maxTicks = this.computeTickLimit();\n maxTicksLimit = maxTicksLimit || 11;\n }\n if (maxTicksLimit) {\n maxTicks = Math.min(maxTicksLimit, maxTicks);\n }\n return maxTicks;\n }\n computeTickLimit() {\n return Number.POSITIVE_INFINITY;\n }\n buildTicks() {\n const opts = this.options;\n const tickOpts = opts.ticks;\n let maxTicks = this.getTickLimit();\n maxTicks = Math.max(2, maxTicks);\n const numericGeneratorOptions = {\n maxTicks,\n bounds: opts.bounds,\n min: opts.min,\n max: opts.max,\n precision: tickOpts.precision,\n step: tickOpts.stepSize,\n count: tickOpts.count,\n maxDigits: this._maxDigits(),\n horizontal: this.isHorizontal(),\n minRotation: tickOpts.minRotation || 0,\n includeBounds: tickOpts.includeBounds !== false\n };\n const dataRange = this._range || this;\n const ticks = generateTicks$1(numericGeneratorOptions, dataRange);\n if (opts.bounds === 'ticks') {\n _setMinAndMaxByKey(ticks, this, 'value');\n }\n if (opts.reverse) {\n ticks.reverse();\n this.start = this.max;\n this.end = this.min;\n } else {\n this.start = this.min;\n this.end = this.max;\n }\n return ticks;\n }\n configure() {\n const ticks = this.ticks;\n let start = this.min;\n let end = this.max;\n super.configure();\n if (this.options.offset && ticks.length) {\n const offset = (end - start) / Math.max(ticks.length - 1, 1) / 2;\n start -= offset;\n end += offset;\n }\n this._startValue = start;\n this._endValue = end;\n this._valueRange = end - start;\n }\n getLabelForValue(value) {\n return formatNumber(value, this.chart.options.locale, this.options.ticks.format);\n }\n}\n\nclass LinearScale extends LinearScaleBase {\n static id = 'linear';\n static defaults = {\n ticks: {\n callback: Ticks.formatters.numeric\n }\n };\n determineDataLimits() {\n const { min , max } = this.getMinMax(true);\n this.min = isNumberFinite(min) ? min : 0;\n this.max = isNumberFinite(max) ? max : 1;\n this.handleTickRangeOptions();\n }\n computeTickLimit() {\n const horizontal = this.isHorizontal();\n const length = horizontal ? this.width : this.height;\n const minRotation = toRadians(this.options.ticks.minRotation);\n const ratio = (horizontal ? Math.sin(minRotation) : Math.cos(minRotation)) || 0.001;\n const tickFont = this._resolveTickFontOptions(0);\n return Math.ceil(length / Math.min(40, tickFont.lineHeight / ratio));\n }\n getPixelForValue(value) {\n return value === null ? NaN : this.getPixelForDecimal((value - this._startValue) / this._valueRange);\n }\n getValueForPixel(pixel) {\n return this._startValue + this.getDecimalForPixel(pixel) * this._valueRange;\n }\n}\n\nconst log10Floor = (v)=>Math.floor(log10(v));\nconst changeExponent = (v, m)=>Math.pow(10, log10Floor(v) + m);\nfunction isMajor(tickVal) {\n const remain = tickVal / Math.pow(10, log10Floor(tickVal));\n return remain === 1;\n}\nfunction steps(min, max, rangeExp) {\n const rangeStep = Math.pow(10, rangeExp);\n const start = Math.floor(min / rangeStep);\n const end = Math.ceil(max / rangeStep);\n return end - start;\n}\nfunction startExp(min, max) {\n const range = max - min;\n let rangeExp = log10Floor(range);\n while(steps(min, max, rangeExp) > 10){\n rangeExp++;\n }\n while(steps(min, max, rangeExp) < 10){\n rangeExp--;\n }\n return Math.min(rangeExp, log10Floor(min));\n}\n function generateTicks(generationOptions, { min , max }) {\n min = finiteOrDefault(generationOptions.min, min);\n const ticks = [];\n const minExp = log10Floor(min);\n let exp = startExp(min, max);\n let precision = exp < 0 ? Math.pow(10, Math.abs(exp)) : 1;\n const stepSize = Math.pow(10, exp);\n const base = minExp > exp ? Math.pow(10, minExp) : 0;\n const start = Math.round((min - base) * precision) / precision;\n const offset = Math.floor((min - base) / stepSize / 10) * stepSize * 10;\n let significand = Math.floor((start - offset) / Math.pow(10, exp));\n let value = finiteOrDefault(generationOptions.min, Math.round((base + offset + significand * Math.pow(10, exp)) * precision) / precision);\n while(value < max){\n ticks.push({\n value,\n major: isMajor(value),\n significand\n });\n if (significand >= 10) {\n significand = significand < 15 ? 15 : 20;\n } else {\n significand++;\n }\n if (significand >= 20) {\n exp++;\n significand = 2;\n precision = exp >= 0 ? 1 : precision;\n }\n value = Math.round((base + offset + significand * Math.pow(10, exp)) * precision) / precision;\n }\n const lastTick = finiteOrDefault(generationOptions.max, value);\n ticks.push({\n value: lastTick,\n major: isMajor(lastTick),\n significand\n });\n return ticks;\n}\nclass LogarithmicScale extends Scale {\n static id = 'logarithmic';\n static defaults = {\n ticks: {\n callback: Ticks.formatters.logarithmic,\n major: {\n enabled: true\n }\n }\n };\n constructor(cfg){\n super(cfg);\n this.start = undefined;\n this.end = undefined;\n this._startValue = undefined;\n this._valueRange = 0;\n }\n parse(raw, index) {\n const value = LinearScaleBase.prototype.parse.apply(this, [\n raw,\n index\n ]);\n if (value === 0) {\n this._zero = true;\n return undefined;\n }\n return isNumberFinite(value) && value > 0 ? value : null;\n }\n determineDataLimits() {\n const { min , max } = this.getMinMax(true);\n this.min = isNumberFinite(min) ? Math.max(0, min) : null;\n this.max = isNumberFinite(max) ? Math.max(0, max) : null;\n if (this.options.beginAtZero) {\n this._zero = true;\n }\n if (this._zero && this.min !== this._suggestedMin && !isNumberFinite(this._userMin)) {\n this.min = min === changeExponent(this.min, 0) ? changeExponent(this.min, -1) : changeExponent(this.min, 0);\n }\n this.handleTickRangeOptions();\n }\n handleTickRangeOptions() {\n const { minDefined , maxDefined } = this.getUserBounds();\n let min = this.min;\n let max = this.max;\n const setMin = (v)=>min = minDefined ? min : v;\n const setMax = (v)=>max = maxDefined ? max : v;\n if (min === max) {\n if (min <= 0) {\n setMin(1);\n setMax(10);\n } else {\n setMin(changeExponent(min, -1));\n setMax(changeExponent(max, +1));\n }\n }\n if (min <= 0) {\n setMin(changeExponent(max, -1));\n }\n if (max <= 0) {\n setMax(changeExponent(min, +1));\n }\n this.min = min;\n this.max = max;\n }\n buildTicks() {\n const opts = this.options;\n const generationOptions = {\n min: this._userMin,\n max: this._userMax\n };\n const ticks = generateTicks(generationOptions, this);\n if (opts.bounds === 'ticks') {\n _setMinAndMaxByKey(ticks, this, 'value');\n }\n if (opts.reverse) {\n ticks.reverse();\n this.start = this.max;\n this.end = this.min;\n } else {\n this.start = this.min;\n this.end = this.max;\n }\n return ticks;\n }\n getLabelForValue(value) {\n return value === undefined ? '0' : formatNumber(value, this.chart.options.locale, this.options.ticks.format);\n }\n configure() {\n const start = this.min;\n super.configure();\n this._startValue = log10(start);\n this._valueRange = log10(this.max) - log10(start);\n }\n getPixelForValue(value) {\n if (value === undefined || value === 0) {\n value = this.min;\n }\n if (value === null || isNaN(value)) {\n return NaN;\n }\n return this.getPixelForDecimal(value === this.min ? 0 : (log10(value) - this._startValue) / this._valueRange);\n }\n getValueForPixel(pixel) {\n const decimal = this.getDecimalForPixel(pixel);\n return Math.pow(10, this._startValue + decimal * this._valueRange);\n }\n}\n\nfunction getTickBackdropHeight(opts) {\n const tickOpts = opts.ticks;\n if (tickOpts.display && opts.display) {\n const padding = toPadding(tickOpts.backdropPadding);\n return valueOrDefault(tickOpts.font && tickOpts.font.size, defaults.font.size) + padding.height;\n }\n return 0;\n}\nfunction measureLabelSize(ctx, font, label) {\n label = isArray(label) ? label : [\n label\n ];\n return {\n w: _longestText(ctx, font.string, label),\n h: label.length * font.lineHeight\n };\n}\nfunction determineLimits(angle, pos, size, min, max) {\n if (angle === min || angle === max) {\n return {\n start: pos - size / 2,\n end: pos + size / 2\n };\n } else if (angle < min || angle > max) {\n return {\n start: pos - size,\n end: pos\n };\n }\n return {\n start: pos,\n end: pos + size\n };\n}\n function fitWithPointLabels(scale) {\n const orig = {\n l: scale.left + scale._padding.left,\n r: scale.right - scale._padding.right,\n t: scale.top + scale._padding.top,\n b: scale.bottom - scale._padding.bottom\n };\n const limits = Object.assign({}, orig);\n const labelSizes = [];\n const padding = [];\n const valueCount = scale._pointLabels.length;\n const pointLabelOpts = scale.options.pointLabels;\n const additionalAngle = pointLabelOpts.centerPointLabels ? PI / valueCount : 0;\n for(let i = 0; i < valueCount; i++){\n const opts = pointLabelOpts.setContext(scale.getPointLabelContext(i));\n padding[i] = opts.padding;\n const pointPosition = scale.getPointPosition(i, scale.drawingArea + padding[i], additionalAngle);\n const plFont = toFont(opts.font);\n const textSize = measureLabelSize(scale.ctx, plFont, scale._pointLabels[i]);\n labelSizes[i] = textSize;\n const angleRadians = _normalizeAngle(scale.getIndexAngle(i) + additionalAngle);\n const angle = Math.round(toDegrees(angleRadians));\n const hLimits = determineLimits(angle, pointPosition.x, textSize.w, 0, 180);\n const vLimits = determineLimits(angle, pointPosition.y, textSize.h, 90, 270);\n updateLimits(limits, orig, angleRadians, hLimits, vLimits);\n }\n scale.setCenterPoint(orig.l - limits.l, limits.r - orig.r, orig.t - limits.t, limits.b - orig.b);\n scale._pointLabelItems = buildPointLabelItems(scale, labelSizes, padding);\n}\nfunction updateLimits(limits, orig, angle, hLimits, vLimits) {\n const sin = Math.abs(Math.sin(angle));\n const cos = Math.abs(Math.cos(angle));\n let x = 0;\n let y = 0;\n if (hLimits.start < orig.l) {\n x = (orig.l - hLimits.start) / sin;\n limits.l = Math.min(limits.l, orig.l - x);\n } else if (hLimits.end > orig.r) {\n x = (hLimits.end - orig.r) / sin;\n limits.r = Math.max(limits.r, orig.r + x);\n }\n if (vLimits.start < orig.t) {\n y = (orig.t - vLimits.start) / cos;\n limits.t = Math.min(limits.t, orig.t - y);\n } else if (vLimits.end > orig.b) {\n y = (vLimits.end - orig.b) / cos;\n limits.b = Math.max(limits.b, orig.b + y);\n }\n}\nfunction buildPointLabelItems(scale, labelSizes, padding) {\n const items = [];\n const valueCount = scale._pointLabels.length;\n const opts = scale.options;\n const extra = getTickBackdropHeight(opts) / 2;\n const outerDistance = scale.drawingArea;\n const additionalAngle = opts.pointLabels.centerPointLabels ? PI / valueCount : 0;\n for(let i = 0; i < valueCount; i++){\n const pointLabelPosition = scale.getPointPosition(i, outerDistance + extra + padding[i], additionalAngle);\n const angle = Math.round(toDegrees(_normalizeAngle(pointLabelPosition.angle + HALF_PI)));\n const size = labelSizes[i];\n const y = yForAngle(pointLabelPosition.y, size.h, angle);\n const textAlign = getTextAlignForAngle(angle);\n const left = leftForTextAlign(pointLabelPosition.x, size.w, textAlign);\n items.push({\n x: pointLabelPosition.x,\n y,\n textAlign,\n left,\n top: y,\n right: left + size.w,\n bottom: y + size.h\n });\n }\n return items;\n}\nfunction getTextAlignForAngle(angle) {\n if (angle === 0 || angle === 180) {\n return 'center';\n } else if (angle < 180) {\n return 'left';\n }\n return 'right';\n}\nfunction leftForTextAlign(x, w, align) {\n if (align === 'right') {\n x -= w;\n } else if (align === 'center') {\n x -= w / 2;\n }\n return x;\n}\nfunction yForAngle(y, h, angle) {\n if (angle === 90 || angle === 270) {\n y -= h / 2;\n } else if (angle > 270 || angle < 90) {\n y -= h;\n }\n return y;\n}\nfunction drawPointLabels(scale, labelCount) {\n const { ctx , options: { pointLabels } } = scale;\n for(let i = labelCount - 1; i >= 0; i--){\n const optsAtIndex = pointLabels.setContext(scale.getPointLabelContext(i));\n const plFont = toFont(optsAtIndex.font);\n const { x , y , textAlign , left , top , right , bottom } = scale._pointLabelItems[i];\n const { backdropColor } = optsAtIndex;\n if (!isNullOrUndef(backdropColor)) {\n const borderRadius = toTRBLCorners(optsAtIndex.borderRadius);\n const padding = toPadding(optsAtIndex.backdropPadding);\n ctx.fillStyle = backdropColor;\n const backdropLeft = left - padding.left;\n const backdropTop = top - padding.top;\n const backdropWidth = right - left + padding.width;\n const backdropHeight = bottom - top + padding.height;\n if (Object.values(borderRadius).some((v)=>v !== 0)) {\n ctx.beginPath();\n addRoundedRectPath(ctx, {\n x: backdropLeft,\n y: backdropTop,\n w: backdropWidth,\n h: backdropHeight,\n radius: borderRadius\n });\n ctx.fill();\n } else {\n ctx.fillRect(backdropLeft, backdropTop, backdropWidth, backdropHeight);\n }\n }\n renderText(ctx, scale._pointLabels[i], x, y + plFont.lineHeight / 2, plFont, {\n color: optsAtIndex.color,\n textAlign: textAlign,\n textBaseline: 'middle'\n });\n }\n}\nfunction pathRadiusLine(scale, radius, circular, labelCount) {\n const { ctx } = scale;\n if (circular) {\n ctx.arc(scale.xCenter, scale.yCenter, radius, 0, TAU);\n } else {\n let pointPosition = scale.getPointPosition(0, radius);\n ctx.moveTo(pointPosition.x, pointPosition.y);\n for(let i = 1; i < labelCount; i++){\n pointPosition = scale.getPointPosition(i, radius);\n ctx.lineTo(pointPosition.x, pointPosition.y);\n }\n }\n}\nfunction drawRadiusLine(scale, gridLineOpts, radius, labelCount, borderOpts) {\n const ctx = scale.ctx;\n const circular = gridLineOpts.circular;\n const { color , lineWidth } = gridLineOpts;\n if (!circular && !labelCount || !color || !lineWidth || radius < 0) {\n return;\n }\n ctx.save();\n ctx.strokeStyle = color;\n ctx.lineWidth = lineWidth;\n ctx.setLineDash(borderOpts.dash);\n ctx.lineDashOffset = borderOpts.dashOffset;\n ctx.beginPath();\n pathRadiusLine(scale, radius, circular, labelCount);\n ctx.closePath();\n ctx.stroke();\n ctx.restore();\n}\nfunction createPointLabelContext(parent, index, label) {\n return createContext(parent, {\n label,\n index,\n type: 'pointLabel'\n });\n}\nclass RadialLinearScale extends LinearScaleBase {\n static id = 'radialLinear';\n static defaults = {\n display: true,\n animate: true,\n position: 'chartArea',\n angleLines: {\n display: true,\n lineWidth: 1,\n borderDash: [],\n borderDashOffset: 0.0\n },\n grid: {\n circular: false\n },\n startAngle: 0,\n ticks: {\n showLabelBackdrop: true,\n callback: Ticks.formatters.numeric\n },\n pointLabels: {\n backdropColor: undefined,\n backdropPadding: 2,\n display: true,\n font: {\n size: 10\n },\n callback (label) {\n return label;\n },\n padding: 5,\n centerPointLabels: false\n }\n };\n static defaultRoutes = {\n 'angleLines.color': 'borderColor',\n 'pointLabels.color': 'color',\n 'ticks.color': 'color'\n };\n static descriptors = {\n angleLines: {\n _fallback: 'grid'\n }\n };\n constructor(cfg){\n super(cfg);\n this.xCenter = undefined;\n this.yCenter = undefined;\n this.drawingArea = undefined;\n this._pointLabels = [];\n this._pointLabelItems = [];\n }\n setDimensions() {\n const padding = this._padding = toPadding(getTickBackdropHeight(this.options) / 2);\n const w = this.width = this.maxWidth - padding.width;\n const h = this.height = this.maxHeight - padding.height;\n this.xCenter = Math.floor(this.left + w / 2 + padding.left);\n this.yCenter = Math.floor(this.top + h / 2 + padding.top);\n this.drawingArea = Math.floor(Math.min(w, h) / 2);\n }\n determineDataLimits() {\n const { min , max } = this.getMinMax(false);\n this.min = isNumberFinite(min) && !isNaN(min) ? min : 0;\n this.max = isNumberFinite(max) && !isNaN(max) ? max : 0;\n this.handleTickRangeOptions();\n }\n computeTickLimit() {\n return Math.ceil(this.drawingArea / getTickBackdropHeight(this.options));\n }\n generateTickLabels(ticks) {\n LinearScaleBase.prototype.generateTickLabels.call(this, ticks);\n this._pointLabels = this.getLabels().map((value, index)=>{\n const label = callback(this.options.pointLabels.callback, [\n value,\n index\n ], this);\n return label || label === 0 ? label : '';\n }).filter((v, i)=>this.chart.getDataVisibility(i));\n }\n fit() {\n const opts = this.options;\n if (opts.display && opts.pointLabels.display) {\n fitWithPointLabels(this);\n } else {\n this.setCenterPoint(0, 0, 0, 0);\n }\n }\n setCenterPoint(leftMovement, rightMovement, topMovement, bottomMovement) {\n this.xCenter += Math.floor((leftMovement - rightMovement) / 2);\n this.yCenter += Math.floor((topMovement - bottomMovement) / 2);\n this.drawingArea -= Math.min(this.drawingArea / 2, Math.max(leftMovement, rightMovement, topMovement, bottomMovement));\n }\n getIndexAngle(index) {\n const angleMultiplier = TAU / (this._pointLabels.length || 1);\n const startAngle = this.options.startAngle || 0;\n return _normalizeAngle(index * angleMultiplier + toRadians(startAngle));\n }\n getDistanceFromCenterForValue(value) {\n if (isNullOrUndef(value)) {\n return NaN;\n }\n const scalingFactor = this.drawingArea / (this.max - this.min);\n if (this.options.reverse) {\n return (this.max - value) * scalingFactor;\n }\n return (value - this.min) * scalingFactor;\n }\n getValueForDistanceFromCenter(distance) {\n if (isNullOrUndef(distance)) {\n return NaN;\n }\n const scaledDistance = distance / (this.drawingArea / (this.max - this.min));\n return this.options.reverse ? this.max - scaledDistance : this.min + scaledDistance;\n }\n getPointLabelContext(index) {\n const pointLabels = this._pointLabels || [];\n if (index >= 0 && index < pointLabels.length) {\n const pointLabel = pointLabels[index];\n return createPointLabelContext(this.getContext(), index, pointLabel);\n }\n }\n getPointPosition(index, distanceFromCenter, additionalAngle = 0) {\n const angle = this.getIndexAngle(index) - HALF_PI + additionalAngle;\n return {\n x: Math.cos(angle) * distanceFromCenter + this.xCenter,\n y: Math.sin(angle) * distanceFromCenter + this.yCenter,\n angle\n };\n }\n getPointPositionForValue(index, value) {\n return this.getPointPosition(index, this.getDistanceFromCenterForValue(value));\n }\n getBasePosition(index) {\n return this.getPointPositionForValue(index || 0, this.getBaseValue());\n }\n getPointLabelPosition(index) {\n const { left , top , right , bottom } = this._pointLabelItems[index];\n return {\n left,\n top,\n right,\n bottom\n };\n }\n drawBackground() {\n const { backgroundColor , grid: { circular } } = this.options;\n if (backgroundColor) {\n const ctx = this.ctx;\n ctx.save();\n ctx.beginPath();\n pathRadiusLine(this, this.getDistanceFromCenterForValue(this._endValue), circular, this._pointLabels.length);\n ctx.closePath();\n ctx.fillStyle = backgroundColor;\n ctx.fill();\n ctx.restore();\n }\n }\n drawGrid() {\n const ctx = this.ctx;\n const opts = this.options;\n const { angleLines , grid , border } = opts;\n const labelCount = this._pointLabels.length;\n let i, offset, position;\n if (opts.pointLabels.display) {\n drawPointLabels(this, labelCount);\n }\n if (grid.display) {\n this.ticks.forEach((tick, index)=>{\n if (index !== 0) {\n offset = this.getDistanceFromCenterForValue(tick.value);\n const context = this.getContext(index);\n const optsAtIndex = grid.setContext(context);\n const optsAtIndexBorder = border.setContext(context);\n drawRadiusLine(this, optsAtIndex, offset, labelCount, optsAtIndexBorder);\n }\n });\n }\n if (angleLines.display) {\n ctx.save();\n for(i = labelCount - 1; i >= 0; i--){\n const optsAtIndex = angleLines.setContext(this.getPointLabelContext(i));\n const { color , lineWidth } = optsAtIndex;\n if (!lineWidth || !color) {\n continue;\n }\n ctx.lineWidth = lineWidth;\n ctx.strokeStyle = color;\n ctx.setLineDash(optsAtIndex.borderDash);\n ctx.lineDashOffset = optsAtIndex.borderDashOffset;\n offset = this.getDistanceFromCenterForValue(opts.ticks.reverse ? this.min : this.max);\n position = this.getPointPosition(i, offset);\n ctx.beginPath();\n ctx.moveTo(this.xCenter, this.yCenter);\n ctx.lineTo(position.x, position.y);\n ctx.stroke();\n }\n ctx.restore();\n }\n }\n drawBorder() {}\n drawLabels() {\n const ctx = this.ctx;\n const opts = this.options;\n const tickOpts = opts.ticks;\n if (!tickOpts.display) {\n return;\n }\n const startAngle = this.getIndexAngle(0);\n let offset, width;\n ctx.save();\n ctx.translate(this.xCenter, this.yCenter);\n ctx.rotate(startAngle);\n ctx.textAlign = 'center';\n ctx.textBaseline = 'middle';\n this.ticks.forEach((tick, index)=>{\n if (index === 0 && !opts.reverse) {\n return;\n }\n const optsAtIndex = tickOpts.setContext(this.getContext(index));\n const tickFont = toFont(optsAtIndex.font);\n offset = this.getDistanceFromCenterForValue(this.ticks[index].value);\n if (optsAtIndex.showLabelBackdrop) {\n ctx.font = tickFont.string;\n width = ctx.measureText(tick.label).width;\n ctx.fillStyle = optsAtIndex.backdropColor;\n const padding = toPadding(optsAtIndex.backdropPadding);\n ctx.fillRect(-width / 2 - padding.left, -offset - tickFont.size / 2 - padding.top, width + padding.width, tickFont.size + padding.height);\n }\n renderText(ctx, tick.label, 0, -offset, tickFont, {\n color: optsAtIndex.color\n });\n });\n ctx.restore();\n }\n drawTitle() {}\n}\n\nconst INTERVALS = {\n millisecond: {\n common: true,\n size: 1,\n steps: 1000\n },\n second: {\n common: true,\n size: 1000,\n steps: 60\n },\n minute: {\n common: true,\n size: 60000,\n steps: 60\n },\n hour: {\n common: true,\n size: 3600000,\n steps: 24\n },\n day: {\n common: true,\n size: 86400000,\n steps: 30\n },\n week: {\n common: false,\n size: 604800000,\n steps: 4\n },\n month: {\n common: true,\n size: 2.628e9,\n steps: 12\n },\n quarter: {\n common: false,\n size: 7.884e9,\n steps: 4\n },\n year: {\n common: true,\n size: 3.154e10\n }\n};\n const UNITS = /* #__PURE__ */ Object.keys(INTERVALS);\n function sorter(a, b) {\n return a - b;\n}\n function parse(scale, input) {\n if (isNullOrUndef(input)) {\n return null;\n }\n const adapter = scale._adapter;\n const { parser , round , isoWeekday } = scale._parseOpts;\n let value = input;\n if (typeof parser === 'function') {\n value = parser(value);\n }\n if (!isNumberFinite(value)) {\n value = typeof parser === 'string' ? adapter.parse(value, parser) : adapter.parse(value);\n }\n if (value === null) {\n return null;\n }\n if (round) {\n value = round === 'week' && (isNumber(isoWeekday) || isoWeekday === true) ? adapter.startOf(value, 'isoWeek', isoWeekday) : adapter.startOf(value, round);\n }\n return +value;\n}\n function determineUnitForAutoTicks(minUnit, min, max, capacity) {\n const ilen = UNITS.length;\n for(let i = UNITS.indexOf(minUnit); i < ilen - 1; ++i){\n const interval = INTERVALS[UNITS[i]];\n const factor = interval.steps ? interval.steps : Number.MAX_SAFE_INTEGER;\n if (interval.common && Math.ceil((max - min) / (factor * interval.size)) <= capacity) {\n return UNITS[i];\n }\n }\n return UNITS[ilen - 1];\n}\n function determineUnitForFormatting(scale, numTicks, minUnit, min, max) {\n for(let i = UNITS.length - 1; i >= UNITS.indexOf(minUnit); i--){\n const unit = UNITS[i];\n if (INTERVALS[unit].common && scale._adapter.diff(max, min, unit) >= numTicks - 1) {\n return unit;\n }\n }\n return UNITS[minUnit ? UNITS.indexOf(minUnit) : 0];\n}\n function determineMajorUnit(unit) {\n for(let i = UNITS.indexOf(unit) + 1, ilen = UNITS.length; i < ilen; ++i){\n if (INTERVALS[UNITS[i]].common) {\n return UNITS[i];\n }\n }\n}\n function addTick(ticks, time, timestamps) {\n if (!timestamps) {\n ticks[time] = true;\n } else if (timestamps.length) {\n const { lo , hi } = _lookup(timestamps, time);\n const timestamp = timestamps[lo] >= time ? timestamps[lo] : timestamps[hi];\n ticks[timestamp] = true;\n }\n}\n function setMajorTicks(scale, ticks, map, majorUnit) {\n const adapter = scale._adapter;\n const first = +adapter.startOf(ticks[0].value, majorUnit);\n const last = ticks[ticks.length - 1].value;\n let major, index;\n for(major = first; major <= last; major = +adapter.add(major, 1, majorUnit)){\n index = map[major];\n if (index >= 0) {\n ticks[index].major = true;\n }\n }\n return ticks;\n}\n function ticksFromTimestamps(scale, values, majorUnit) {\n const ticks = [];\n const map = {};\n const ilen = values.length;\n let i, value;\n for(i = 0; i < ilen; ++i){\n value = values[i];\n map[value] = i;\n ticks.push({\n value,\n major: false\n });\n }\n return ilen === 0 || !majorUnit ? ticks : setMajorTicks(scale, ticks, map, majorUnit);\n}\nclass TimeScale extends Scale {\n static id = 'time';\n static defaults = {\n bounds: 'data',\n adapters: {},\n time: {\n parser: false,\n unit: false,\n round: false,\n isoWeekday: false,\n minUnit: 'millisecond',\n displayFormats: {}\n },\n ticks: {\n source: 'auto',\n callback: false,\n major: {\n enabled: false\n }\n }\n };\n constructor(props){\n super(props);\n this._cache = {\n data: [],\n labels: [],\n all: []\n };\n this._unit = 'day';\n this._majorUnit = undefined;\n this._offsets = {};\n this._normalized = false;\n this._parseOpts = undefined;\n }\n init(scaleOpts, opts = {}) {\n const time = scaleOpts.time || (scaleOpts.time = {});\n const adapter = this._adapter = new _adapters._date(scaleOpts.adapters.date);\n adapter.init(opts);\n mergeIf(time.displayFormats, adapter.formats());\n this._parseOpts = {\n parser: time.parser,\n round: time.round,\n isoWeekday: time.isoWeekday\n };\n super.init(scaleOpts);\n this._normalized = opts.normalized;\n }\n parse(raw, index) {\n if (raw === undefined) {\n return null;\n }\n return parse(this, raw);\n }\n beforeLayout() {\n super.beforeLayout();\n this._cache = {\n data: [],\n labels: [],\n all: []\n };\n }\n determineDataLimits() {\n const options = this.options;\n const adapter = this._adapter;\n const unit = options.time.unit || 'day';\n let { min , max , minDefined , maxDefined } = this.getUserBounds();\n function _applyBounds(bounds) {\n if (!minDefined && !isNaN(bounds.min)) {\n min = Math.min(min, bounds.min);\n }\n if (!maxDefined && !isNaN(bounds.max)) {\n max = Math.max(max, bounds.max);\n }\n }\n if (!minDefined || !maxDefined) {\n _applyBounds(this._getLabelBounds());\n if (options.bounds !== 'ticks' || options.ticks.source !== 'labels') {\n _applyBounds(this.getMinMax(false));\n }\n }\n min = isNumberFinite(min) && !isNaN(min) ? min : +adapter.startOf(Date.now(), unit);\n max = isNumberFinite(max) && !isNaN(max) ? max : +adapter.endOf(Date.now(), unit) + 1;\n this.min = Math.min(min, max - 1);\n this.max = Math.max(min + 1, max);\n }\n _getLabelBounds() {\n const arr = this.getLabelTimestamps();\n let min = Number.POSITIVE_INFINITY;\n let max = Number.NEGATIVE_INFINITY;\n if (arr.length) {\n min = arr[0];\n max = arr[arr.length - 1];\n }\n return {\n min,\n max\n };\n }\n buildTicks() {\n const options = this.options;\n const timeOpts = options.time;\n const tickOpts = options.ticks;\n const timestamps = tickOpts.source === 'labels' ? this.getLabelTimestamps() : this._generate();\n if (options.bounds === 'ticks' && timestamps.length) {\n this.min = this._userMin || timestamps[0];\n this.max = this._userMax || timestamps[timestamps.length - 1];\n }\n const min = this.min;\n const max = this.max;\n const ticks = _filterBetween(timestamps, min, max);\n this._unit = timeOpts.unit || (tickOpts.autoSkip ? determineUnitForAutoTicks(timeOpts.minUnit, this.min, this.max, this._getLabelCapacity(min)) : determineUnitForFormatting(this, ticks.length, timeOpts.minUnit, this.min, this.max));\n this._majorUnit = !tickOpts.major.enabled || this._unit === 'year' ? undefined : determineMajorUnit(this._unit);\n this.initOffsets(timestamps);\n if (options.reverse) {\n ticks.reverse();\n }\n return ticksFromTimestamps(this, ticks, this._majorUnit);\n }\n afterAutoSkip() {\n if (this.options.offsetAfterAutoskip) {\n this.initOffsets(this.ticks.map((tick)=>+tick.value));\n }\n }\n initOffsets(timestamps = []) {\n let start = 0;\n let end = 0;\n let first, last;\n if (this.options.offset && timestamps.length) {\n first = this.getDecimalForValue(timestamps[0]);\n if (timestamps.length === 1) {\n start = 1 - first;\n } else {\n start = (this.getDecimalForValue(timestamps[1]) - first) / 2;\n }\n last = this.getDecimalForValue(timestamps[timestamps.length - 1]);\n if (timestamps.length === 1) {\n end = last;\n } else {\n end = (last - this.getDecimalForValue(timestamps[timestamps.length - 2])) / 2;\n }\n }\n const limit = timestamps.length < 3 ? 0.5 : 0.25;\n start = _limitValue(start, 0, limit);\n end = _limitValue(end, 0, limit);\n this._offsets = {\n start,\n end,\n factor: 1 / (start + 1 + end)\n };\n }\n _generate() {\n const adapter = this._adapter;\n const min = this.min;\n const max = this.max;\n const options = this.options;\n const timeOpts = options.time;\n const minor = timeOpts.unit || determineUnitForAutoTicks(timeOpts.minUnit, min, max, this._getLabelCapacity(min));\n const stepSize = valueOrDefault(options.ticks.stepSize, 1);\n const weekday = minor === 'week' ? timeOpts.isoWeekday : false;\n const hasWeekday = isNumber(weekday) || weekday === true;\n const ticks = {};\n let first = min;\n let time, count;\n if (hasWeekday) {\n first = +adapter.startOf(first, 'isoWeek', weekday);\n }\n first = +adapter.startOf(first, hasWeekday ? 'day' : minor);\n if (adapter.diff(max, min, minor) > 100000 * stepSize) {\n throw new Error(min + ' and ' + max + ' are too far apart with stepSize of ' + stepSize + ' ' + minor);\n }\n const timestamps = options.ticks.source === 'data' && this.getDataTimestamps();\n for(time = first, count = 0; time < max; time = +adapter.add(time, stepSize, minor), count++){\n addTick(ticks, time, timestamps);\n }\n if (time === max || options.bounds === 'ticks' || count === 1) {\n addTick(ticks, time, timestamps);\n }\n return Object.keys(ticks).sort((a, b)=>a - b).map((x)=>+x);\n }\n getLabelForValue(value) {\n const adapter = this._adapter;\n const timeOpts = this.options.time;\n if (timeOpts.tooltipFormat) {\n return adapter.format(value, timeOpts.tooltipFormat);\n }\n return adapter.format(value, timeOpts.displayFormats.datetime);\n }\n format(value, format) {\n const options = this.options;\n const formats = options.time.displayFormats;\n const unit = this._unit;\n const fmt = format || formats[unit];\n return this._adapter.format(value, fmt);\n }\n _tickFormatFunction(time, index, ticks, format) {\n const options = this.options;\n const formatter = options.ticks.callback;\n if (formatter) {\n return callback(formatter, [\n time,\n index,\n ticks\n ], this);\n }\n const formats = options.time.displayFormats;\n const unit = this._unit;\n const majorUnit = this._majorUnit;\n const minorFormat = unit && formats[unit];\n const majorFormat = majorUnit && formats[majorUnit];\n const tick = ticks[index];\n const major = majorUnit && majorFormat && tick && tick.major;\n return this._adapter.format(time, format || (major ? majorFormat : minorFormat));\n }\n generateTickLabels(ticks) {\n let i, ilen, tick;\n for(i = 0, ilen = ticks.length; i < ilen; ++i){\n tick = ticks[i];\n tick.label = this._tickFormatFunction(tick.value, i, ticks);\n }\n }\n getDecimalForValue(value) {\n return value === null ? NaN : (value - this.min) / (this.max - this.min);\n }\n getPixelForValue(value) {\n const offsets = this._offsets;\n const pos = this.getDecimalForValue(value);\n return this.getPixelForDecimal((offsets.start + pos) * offsets.factor);\n }\n getValueForPixel(pixel) {\n const offsets = this._offsets;\n const pos = this.getDecimalForPixel(pixel) / offsets.factor - offsets.end;\n return this.min + pos * (this.max - this.min);\n }\n _getLabelSize(label) {\n const ticksOpts = this.options.ticks;\n const tickLabelWidth = this.ctx.measureText(label).width;\n const angle = toRadians(this.isHorizontal() ? ticksOpts.maxRotation : ticksOpts.minRotation);\n const cosRotation = Math.cos(angle);\n const sinRotation = Math.sin(angle);\n const tickFontSize = this._resolveTickFontOptions(0).size;\n return {\n w: tickLabelWidth * cosRotation + tickFontSize * sinRotation,\n h: tickLabelWidth * sinRotation + tickFontSize * cosRotation\n };\n }\n _getLabelCapacity(exampleTime) {\n const timeOpts = this.options.time;\n const displayFormats = timeOpts.displayFormats;\n const format = displayFormats[timeOpts.unit] || displayFormats.millisecond;\n const exampleLabel = this._tickFormatFunction(exampleTime, 0, ticksFromTimestamps(this, [\n exampleTime\n ], this._majorUnit), format);\n const size = this._getLabelSize(exampleLabel);\n const capacity = Math.floor(this.isHorizontal() ? this.width / size.w : this.height / size.h) - 1;\n return capacity > 0 ? capacity : 1;\n }\n getDataTimestamps() {\n let timestamps = this._cache.data || [];\n let i, ilen;\n if (timestamps.length) {\n return timestamps;\n }\n const metas = this.getMatchingVisibleMetas();\n if (this._normalized && metas.length) {\n return this._cache.data = metas[0].controller.getAllParsedValues(this);\n }\n for(i = 0, ilen = metas.length; i < ilen; ++i){\n timestamps = timestamps.concat(metas[i].controller.getAllParsedValues(this));\n }\n return this._cache.data = this.normalize(timestamps);\n }\n getLabelTimestamps() {\n const timestamps = this._cache.labels || [];\n let i, ilen;\n if (timestamps.length) {\n return timestamps;\n }\n const labels = this.getLabels();\n for(i = 0, ilen = labels.length; i < ilen; ++i){\n timestamps.push(parse(this, labels[i]));\n }\n return this._cache.labels = this._normalized ? timestamps : this.normalize(timestamps);\n }\n normalize(values) {\n return _arrayUnique(values.sort(sorter));\n }\n}\n\nfunction interpolate(table, val, reverse) {\n let lo = 0;\n let hi = table.length - 1;\n let prevSource, nextSource, prevTarget, nextTarget;\n if (reverse) {\n if (val >= table[lo].pos && val <= table[hi].pos) {\n ({ lo , hi } = _lookupByKey(table, 'pos', val));\n }\n ({ pos: prevSource , time: prevTarget } = table[lo]);\n ({ pos: nextSource , time: nextTarget } = table[hi]);\n } else {\n if (val >= table[lo].time && val <= table[hi].time) {\n ({ lo , hi } = _lookupByKey(table, 'time', val));\n }\n ({ time: prevSource , pos: prevTarget } = table[lo]);\n ({ time: nextSource , pos: nextTarget } = table[hi]);\n }\n const span = nextSource - prevSource;\n return span ? prevTarget + (nextTarget - prevTarget) * (val - prevSource) / span : prevTarget;\n}\nclass TimeSeriesScale extends TimeScale {\n static id = 'timeseries';\n static defaults = TimeScale.defaults;\n constructor(props){\n super(props);\n this._table = [];\n this._minPos = undefined;\n this._tableRange = undefined;\n }\n initOffsets() {\n const timestamps = this._getTimestampsForTable();\n const table = this._table = this.buildLookupTable(timestamps);\n this._minPos = interpolate(table, this.min);\n this._tableRange = interpolate(table, this.max) - this._minPos;\n super.initOffsets(timestamps);\n }\n buildLookupTable(timestamps) {\n const { min , max } = this;\n const items = [];\n const table = [];\n let i, ilen, prev, curr, next;\n for(i = 0, ilen = timestamps.length; i < ilen; ++i){\n curr = timestamps[i];\n if (curr >= min && curr <= max) {\n items.push(curr);\n }\n }\n if (items.length < 2) {\n return [\n {\n time: min,\n pos: 0\n },\n {\n time: max,\n pos: 1\n }\n ];\n }\n for(i = 0, ilen = items.length; i < ilen; ++i){\n next = items[i + 1];\n prev = items[i - 1];\n curr = items[i];\n if (Math.round((next + prev) / 2) !== curr) {\n table.push({\n time: curr,\n pos: i / (ilen - 1)\n });\n }\n }\n return table;\n }\n _getTimestampsForTable() {\n let timestamps = this._cache.all || [];\n if (timestamps.length) {\n return timestamps;\n }\n const data = this.getDataTimestamps();\n const label = this.getLabelTimestamps();\n if (data.length && label.length) {\n timestamps = this.normalize(data.concat(label));\n } else {\n timestamps = data.length ? data : label;\n }\n timestamps = this._cache.all = timestamps;\n return timestamps;\n }\n getDecimalForValue(value) {\n return (interpolate(this._table, value) - this._minPos) / this._tableRange;\n }\n getValueForPixel(pixel) {\n const offsets = this._offsets;\n const decimal = this.getDecimalForPixel(pixel) / offsets.factor - offsets.end;\n return interpolate(this._table, decimal * this._tableRange + this._minPos, true);\n }\n}\n\nvar scales = /*#__PURE__*/Object.freeze({\n__proto__: null,\nCategoryScale: CategoryScale,\nLinearScale: LinearScale,\nLogarithmicScale: LogarithmicScale,\nRadialLinearScale: RadialLinearScale,\nTimeScale: TimeScale,\nTimeSeriesScale: TimeSeriesScale\n});\n\nconst BORDER_COLORS = [\n 'rgb(54, 162, 235)',\n 'rgb(255, 99, 132)',\n 'rgb(255, 159, 64)',\n 'rgb(255, 205, 86)',\n 'rgb(75, 192, 192)',\n 'rgb(153, 102, 255)',\n 'rgb(201, 203, 207)' // grey\n];\n// Border colors with 50% transparency\nconst BACKGROUND_COLORS = /* #__PURE__ */ BORDER_COLORS.map((color)=>color.replace('rgb(', 'rgba(').replace(')', ', 0.5)'));\nfunction getBorderColor(i) {\n return BORDER_COLORS[i % BORDER_COLORS.length];\n}\nfunction getBackgroundColor(i) {\n return BACKGROUND_COLORS[i % BACKGROUND_COLORS.length];\n}\nfunction colorizeDefaultDataset(dataset, i) {\n dataset.borderColor = getBorderColor(i);\n dataset.backgroundColor = getBackgroundColor(i);\n return ++i;\n}\nfunction colorizeDoughnutDataset(dataset, i) {\n dataset.backgroundColor = dataset.data.map(()=>getBorderColor(i++));\n return i;\n}\nfunction colorizePolarAreaDataset(dataset, i) {\n dataset.backgroundColor = dataset.data.map(()=>getBackgroundColor(i++));\n return i;\n}\nfunction getColorizer(chart) {\n let i = 0;\n return (dataset, datasetIndex)=>{\n const controller = chart.getDatasetMeta(datasetIndex).controller;\n if (controller instanceof DoughnutController) {\n i = colorizeDoughnutDataset(dataset, i);\n } else if (controller instanceof PolarAreaController) {\n i = colorizePolarAreaDataset(dataset, i);\n } else if (controller) {\n i = colorizeDefaultDataset(dataset, i);\n }\n };\n}\nfunction containsColorsDefinitions(descriptors) {\n let k;\n for(k in descriptors){\n if (descriptors[k].borderColor || descriptors[k].backgroundColor) {\n return true;\n }\n }\n return false;\n}\nfunction containsColorsDefinition(descriptor) {\n return descriptor && (descriptor.borderColor || descriptor.backgroundColor);\n}\nvar plugin_colors = {\n id: 'colors',\n defaults: {\n enabled: true,\n forceOverride: false\n },\n beforeLayout (chart, _args, options) {\n if (!options.enabled) {\n return;\n }\n const { data: { datasets } , options: chartOptions } = chart.config;\n const { elements } = chartOptions;\n if (!options.forceOverride && (containsColorsDefinitions(datasets) || containsColorsDefinition(chartOptions) || elements && containsColorsDefinitions(elements))) {\n return;\n }\n const colorizer = getColorizer(chart);\n datasets.forEach(colorizer);\n }\n};\n\nfunction lttbDecimation(data, start, count, availableWidth, options) {\n const samples = options.samples || availableWidth;\n if (samples >= count) {\n return data.slice(start, start + count);\n }\n const decimated = [];\n const bucketWidth = (count - 2) / (samples - 2);\n let sampledIndex = 0;\n const endIndex = start + count - 1;\n let a = start;\n let i, maxAreaPoint, maxArea, area, nextA;\n decimated[sampledIndex++] = data[a];\n for(i = 0; i < samples - 2; i++){\n let avgX = 0;\n let avgY = 0;\n let j;\n const avgRangeStart = Math.floor((i + 1) * bucketWidth) + 1 + start;\n const avgRangeEnd = Math.min(Math.floor((i + 2) * bucketWidth) + 1, count) + start;\n const avgRangeLength = avgRangeEnd - avgRangeStart;\n for(j = avgRangeStart; j < avgRangeEnd; j++){\n avgX += data[j].x;\n avgY += data[j].y;\n }\n avgX /= avgRangeLength;\n avgY /= avgRangeLength;\n const rangeOffs = Math.floor(i * bucketWidth) + 1 + start;\n const rangeTo = Math.min(Math.floor((i + 1) * bucketWidth) + 1, count) + start;\n const { x: pointAx , y: pointAy } = data[a];\n maxArea = area = -1;\n for(j = rangeOffs; j < rangeTo; j++){\n area = 0.5 * Math.abs((pointAx - avgX) * (data[j].y - pointAy) - (pointAx - data[j].x) * (avgY - pointAy));\n if (area > maxArea) {\n maxArea = area;\n maxAreaPoint = data[j];\n nextA = j;\n }\n }\n decimated[sampledIndex++] = maxAreaPoint;\n a = nextA;\n }\n decimated[sampledIndex++] = data[endIndex];\n return decimated;\n}\nfunction minMaxDecimation(data, start, count, availableWidth) {\n let avgX = 0;\n let countX = 0;\n let i, point, x, y, prevX, minIndex, maxIndex, startIndex, minY, maxY;\n const decimated = [];\n const endIndex = start + count - 1;\n const xMin = data[start].x;\n const xMax = data[endIndex].x;\n const dx = xMax - xMin;\n for(i = start; i < start + count; ++i){\n point = data[i];\n x = (point.x - xMin) / dx * availableWidth;\n y = point.y;\n const truncX = x | 0;\n if (truncX === prevX) {\n if (y < minY) {\n minY = y;\n minIndex = i;\n } else if (y > maxY) {\n maxY = y;\n maxIndex = i;\n }\n avgX = (countX * avgX + point.x) / ++countX;\n } else {\n const lastIndex = i - 1;\n if (!isNullOrUndef(minIndex) && !isNullOrUndef(maxIndex)) {\n const intermediateIndex1 = Math.min(minIndex, maxIndex);\n const intermediateIndex2 = Math.max(minIndex, maxIndex);\n if (intermediateIndex1 !== startIndex && intermediateIndex1 !== lastIndex) {\n decimated.push({\n ...data[intermediateIndex1],\n x: avgX\n });\n }\n if (intermediateIndex2 !== startIndex && intermediateIndex2 !== lastIndex) {\n decimated.push({\n ...data[intermediateIndex2],\n x: avgX\n });\n }\n }\n if (i > 0 && lastIndex !== startIndex) {\n decimated.push(data[lastIndex]);\n }\n decimated.push(point);\n prevX = truncX;\n countX = 0;\n minY = maxY = y;\n minIndex = maxIndex = startIndex = i;\n }\n }\n return decimated;\n}\nfunction cleanDecimatedDataset(dataset) {\n if (dataset._decimated) {\n const data = dataset._data;\n delete dataset._decimated;\n delete dataset._data;\n Object.defineProperty(dataset, 'data', {\n configurable: true,\n enumerable: true,\n writable: true,\n value: data\n });\n }\n}\nfunction cleanDecimatedData(chart) {\n chart.data.datasets.forEach((dataset)=>{\n cleanDecimatedDataset(dataset);\n });\n}\nfunction getStartAndCountOfVisiblePointsSimplified(meta, points) {\n const pointCount = points.length;\n let start = 0;\n let count;\n const { iScale } = meta;\n const { min , max , minDefined , maxDefined } = iScale.getUserBounds();\n if (minDefined) {\n start = _limitValue(_lookupByKey(points, iScale.axis, min).lo, 0, pointCount - 1);\n }\n if (maxDefined) {\n count = _limitValue(_lookupByKey(points, iScale.axis, max).hi + 1, start, pointCount) - start;\n } else {\n count = pointCount - start;\n }\n return {\n start,\n count\n };\n}\nvar plugin_decimation = {\n id: 'decimation',\n defaults: {\n algorithm: 'min-max',\n enabled: false\n },\n beforeElementsUpdate: (chart, args, options)=>{\n if (!options.enabled) {\n cleanDecimatedData(chart);\n return;\n }\n const availableWidth = chart.width;\n chart.data.datasets.forEach((dataset, datasetIndex)=>{\n const { _data , indexAxis } = dataset;\n const meta = chart.getDatasetMeta(datasetIndex);\n const data = _data || dataset.data;\n if (resolve([\n indexAxis,\n chart.options.indexAxis\n ]) === 'y') {\n return;\n }\n if (!meta.controller.supportsDecimation) {\n return;\n }\n const xAxis = chart.scales[meta.xAxisID];\n if (xAxis.type !== 'linear' && xAxis.type !== 'time') {\n return;\n }\n if (chart.options.parsing) {\n return;\n }\n let { start , count } = getStartAndCountOfVisiblePointsSimplified(meta, data);\n const threshold = options.threshold || 4 * availableWidth;\n if (count <= threshold) {\n cleanDecimatedDataset(dataset);\n return;\n }\n if (isNullOrUndef(_data)) {\n dataset._data = data;\n delete dataset.data;\n Object.defineProperty(dataset, 'data', {\n configurable: true,\n enumerable: true,\n get: function() {\n return this._decimated;\n },\n set: function(d) {\n this._data = d;\n }\n });\n }\n let decimated;\n switch(options.algorithm){\n case 'lttb':\n decimated = lttbDecimation(data, start, count, availableWidth, options);\n break;\n case 'min-max':\n decimated = minMaxDecimation(data, start, count, availableWidth);\n break;\n default:\n throw new Error(`Unsupported decimation algorithm '${options.algorithm}'`);\n }\n dataset._decimated = decimated;\n });\n },\n destroy (chart) {\n cleanDecimatedData(chart);\n }\n};\n\nfunction _segments(line, target, property) {\n const segments = line.segments;\n const points = line.points;\n const tpoints = target.points;\n const parts = [];\n for (const segment of segments){\n let { start , end } = segment;\n end = _findSegmentEnd(start, end, points);\n const bounds = _getBounds(property, points[start], points[end], segment.loop);\n if (!target.segments) {\n parts.push({\n source: segment,\n target: bounds,\n start: points[start],\n end: points[end]\n });\n continue;\n }\n const targetSegments = _boundSegments(target, bounds);\n for (const tgt of targetSegments){\n const subBounds = _getBounds(property, tpoints[tgt.start], tpoints[tgt.end], tgt.loop);\n const fillSources = _boundSegment(segment, points, subBounds);\n for (const fillSource of fillSources){\n parts.push({\n source: fillSource,\n target: tgt,\n start: {\n [property]: _getEdge(bounds, subBounds, 'start', Math.max)\n },\n end: {\n [property]: _getEdge(bounds, subBounds, 'end', Math.min)\n }\n });\n }\n }\n }\n return parts;\n}\nfunction _getBounds(property, first, last, loop) {\n if (loop) {\n return;\n }\n let start = first[property];\n let end = last[property];\n if (property === 'angle') {\n start = _normalizeAngle(start);\n end = _normalizeAngle(end);\n }\n return {\n property,\n start,\n end\n };\n}\nfunction _pointsFromSegments(boundary, line) {\n const { x =null , y =null } = boundary || {};\n const linePoints = line.points;\n const points = [];\n line.segments.forEach(({ start , end })=>{\n end = _findSegmentEnd(start, end, linePoints);\n const first = linePoints[start];\n const last = linePoints[end];\n if (y !== null) {\n points.push({\n x: first.x,\n y\n });\n points.push({\n x: last.x,\n y\n });\n } else if (x !== null) {\n points.push({\n x,\n y: first.y\n });\n points.push({\n x,\n y: last.y\n });\n }\n });\n return points;\n}\nfunction _findSegmentEnd(start, end, points) {\n for(; end > start; end--){\n const point = points[end];\n if (!isNaN(point.x) && !isNaN(point.y)) {\n break;\n }\n }\n return end;\n}\nfunction _getEdge(a, b, prop, fn) {\n if (a && b) {\n return fn(a[prop], b[prop]);\n }\n return a ? a[prop] : b ? b[prop] : 0;\n}\n\nfunction _createBoundaryLine(boundary, line) {\n let points = [];\n let _loop = false;\n if (isArray(boundary)) {\n _loop = true;\n points = boundary;\n } else {\n points = _pointsFromSegments(boundary, line);\n }\n return points.length ? new LineElement({\n points,\n options: {\n tension: 0\n },\n _loop,\n _fullLoop: _loop\n }) : null;\n}\nfunction _shouldApplyFill(source) {\n return source && source.fill !== false;\n}\n\nfunction _resolveTarget(sources, index, propagate) {\n const source = sources[index];\n let fill = source.fill;\n const visited = [\n index\n ];\n let target;\n if (!propagate) {\n return fill;\n }\n while(fill !== false && visited.indexOf(fill) === -1){\n if (!isNumberFinite(fill)) {\n return fill;\n }\n target = sources[fill];\n if (!target) {\n return false;\n }\n if (target.visible) {\n return fill;\n }\n visited.push(fill);\n fill = target.fill;\n }\n return false;\n}\n function _decodeFill(line, index, count) {\n const fill = parseFillOption(line);\n if (isObject(fill)) {\n return isNaN(fill.value) ? false : fill;\n }\n let target = parseFloat(fill);\n if (isNumberFinite(target) && Math.floor(target) === target) {\n return decodeTargetIndex(fill[0], index, target, count);\n }\n return [\n 'origin',\n 'start',\n 'end',\n 'stack',\n 'shape'\n ].indexOf(fill) >= 0 && fill;\n}\nfunction decodeTargetIndex(firstCh, index, target, count) {\n if (firstCh === '-' || firstCh === '+') {\n target = index + target;\n }\n if (target === index || target < 0 || target >= count) {\n return false;\n }\n return target;\n}\n function _getTargetPixel(fill, scale) {\n let pixel = null;\n if (fill === 'start') {\n pixel = scale.bottom;\n } else if (fill === 'end') {\n pixel = scale.top;\n } else if (isObject(fill)) {\n pixel = scale.getPixelForValue(fill.value);\n } else if (scale.getBasePixel) {\n pixel = scale.getBasePixel();\n }\n return pixel;\n}\n function _getTargetValue(fill, scale, startValue) {\n let value;\n if (fill === 'start') {\n value = startValue;\n } else if (fill === 'end') {\n value = scale.options.reverse ? scale.min : scale.max;\n } else if (isObject(fill)) {\n value = fill.value;\n } else {\n value = scale.getBaseValue();\n }\n return value;\n}\n function parseFillOption(line) {\n const options = line.options;\n const fillOption = options.fill;\n let fill = valueOrDefault(fillOption && fillOption.target, fillOption);\n if (fill === undefined) {\n fill = !!options.backgroundColor;\n }\n if (fill === false || fill === null) {\n return false;\n }\n if (fill === true) {\n return 'origin';\n }\n return fill;\n}\n\nfunction _buildStackLine(source) {\n const { scale , index , line } = source;\n const points = [];\n const segments = line.segments;\n const sourcePoints = line.points;\n const linesBelow = getLinesBelow(scale, index);\n linesBelow.push(_createBoundaryLine({\n x: null,\n y: scale.bottom\n }, line));\n for(let i = 0; i < segments.length; i++){\n const segment = segments[i];\n for(let j = segment.start; j <= segment.end; j++){\n addPointsBelow(points, sourcePoints[j], linesBelow);\n }\n }\n return new LineElement({\n points,\n options: {}\n });\n}\n function getLinesBelow(scale, index) {\n const below = [];\n const metas = scale.getMatchingVisibleMetas('line');\n for(let i = 0; i < metas.length; i++){\n const meta = metas[i];\n if (meta.index === index) {\n break;\n }\n if (!meta.hidden) {\n below.unshift(meta.dataset);\n }\n }\n return below;\n}\n function addPointsBelow(points, sourcePoint, linesBelow) {\n const postponed = [];\n for(let j = 0; j < linesBelow.length; j++){\n const line = linesBelow[j];\n const { first , last , point } = findPoint(line, sourcePoint, 'x');\n if (!point || first && last) {\n continue;\n }\n if (first) {\n postponed.unshift(point);\n } else {\n points.push(point);\n if (!last) {\n break;\n }\n }\n }\n points.push(...postponed);\n}\n function findPoint(line, sourcePoint, property) {\n const point = line.interpolate(sourcePoint, property);\n if (!point) {\n return {};\n }\n const pointValue = point[property];\n const segments = line.segments;\n const linePoints = line.points;\n let first = false;\n let last = false;\n for(let i = 0; i < segments.length; i++){\n const segment = segments[i];\n const firstValue = linePoints[segment.start][property];\n const lastValue = linePoints[segment.end][property];\n if (_isBetween(pointValue, firstValue, lastValue)) {\n first = pointValue === firstValue;\n last = pointValue === lastValue;\n break;\n }\n }\n return {\n first,\n last,\n point\n };\n}\n\nclass simpleArc {\n constructor(opts){\n this.x = opts.x;\n this.y = opts.y;\n this.radius = opts.radius;\n }\n pathSegment(ctx, bounds, opts) {\n const { x , y , radius } = this;\n bounds = bounds || {\n start: 0,\n end: TAU\n };\n ctx.arc(x, y, radius, bounds.end, bounds.start, true);\n return !opts.bounds;\n }\n interpolate(point) {\n const { x , y , radius } = this;\n const angle = point.angle;\n return {\n x: x + Math.cos(angle) * radius,\n y: y + Math.sin(angle) * radius,\n angle\n };\n }\n}\n\nfunction _getTarget(source) {\n const { chart , fill , line } = source;\n if (isNumberFinite(fill)) {\n return getLineByIndex(chart, fill);\n }\n if (fill === 'stack') {\n return _buildStackLine(source);\n }\n if (fill === 'shape') {\n return true;\n }\n const boundary = computeBoundary(source);\n if (boundary instanceof simpleArc) {\n return boundary;\n }\n return _createBoundaryLine(boundary, line);\n}\n function getLineByIndex(chart, index) {\n const meta = chart.getDatasetMeta(index);\n const visible = meta && chart.isDatasetVisible(index);\n return visible ? meta.dataset : null;\n}\nfunction computeBoundary(source) {\n const scale = source.scale || {};\n if (scale.getPointPositionForValue) {\n return computeCircularBoundary(source);\n }\n return computeLinearBoundary(source);\n}\nfunction computeLinearBoundary(source) {\n const { scale ={} , fill } = source;\n const pixel = _getTargetPixel(fill, scale);\n if (isNumberFinite(pixel)) {\n const horizontal = scale.isHorizontal();\n return {\n x: horizontal ? pixel : null,\n y: horizontal ? null : pixel\n };\n }\n return null;\n}\nfunction computeCircularBoundary(source) {\n const { scale , fill } = source;\n const options = scale.options;\n const length = scale.getLabels().length;\n const start = options.reverse ? scale.max : scale.min;\n const value = _getTargetValue(fill, scale, start);\n const target = [];\n if (options.grid.circular) {\n const center = scale.getPointPositionForValue(0, start);\n return new simpleArc({\n x: center.x,\n y: center.y,\n radius: scale.getDistanceFromCenterForValue(value)\n });\n }\n for(let i = 0; i < length; ++i){\n target.push(scale.getPointPositionForValue(i, value));\n }\n return target;\n}\n\nfunction _drawfill(ctx, source, area) {\n const target = _getTarget(source);\n const { line , scale , axis } = source;\n const lineOpts = line.options;\n const fillOption = lineOpts.fill;\n const color = lineOpts.backgroundColor;\n const { above =color , below =color } = fillOption || {};\n if (target && line.points.length) {\n clipArea(ctx, area);\n doFill(ctx, {\n line,\n target,\n above,\n below,\n area,\n scale,\n axis\n });\n unclipArea(ctx);\n }\n}\nfunction doFill(ctx, cfg) {\n const { line , target , above , below , area , scale } = cfg;\n const property = line._loop ? 'angle' : cfg.axis;\n ctx.save();\n if (property === 'x' && below !== above) {\n clipVertical(ctx, target, area.top);\n fill(ctx, {\n line,\n target,\n color: above,\n scale,\n property\n });\n ctx.restore();\n ctx.save();\n clipVertical(ctx, target, area.bottom);\n }\n fill(ctx, {\n line,\n target,\n color: below,\n scale,\n property\n });\n ctx.restore();\n}\nfunction clipVertical(ctx, target, clipY) {\n const { segments , points } = target;\n let first = true;\n let lineLoop = false;\n ctx.beginPath();\n for (const segment of segments){\n const { start , end } = segment;\n const firstPoint = points[start];\n const lastPoint = points[_findSegmentEnd(start, end, points)];\n if (first) {\n ctx.moveTo(firstPoint.x, firstPoint.y);\n first = false;\n } else {\n ctx.lineTo(firstPoint.x, clipY);\n ctx.lineTo(firstPoint.x, firstPoint.y);\n }\n lineLoop = !!target.pathSegment(ctx, segment, {\n move: lineLoop\n });\n if (lineLoop) {\n ctx.closePath();\n } else {\n ctx.lineTo(lastPoint.x, clipY);\n }\n }\n ctx.lineTo(target.first().x, clipY);\n ctx.closePath();\n ctx.clip();\n}\nfunction fill(ctx, cfg) {\n const { line , target , property , color , scale } = cfg;\n const segments = _segments(line, target, property);\n for (const { source: src , target: tgt , start , end } of segments){\n const { style: { backgroundColor =color } = {} } = src;\n const notShape = target !== true;\n ctx.save();\n ctx.fillStyle = backgroundColor;\n clipBounds(ctx, scale, notShape && _getBounds(property, start, end));\n ctx.beginPath();\n const lineLoop = !!line.pathSegment(ctx, src);\n let loop;\n if (notShape) {\n if (lineLoop) {\n ctx.closePath();\n } else {\n interpolatedLineTo(ctx, target, end, property);\n }\n const targetLoop = !!target.pathSegment(ctx, tgt, {\n move: lineLoop,\n reverse: true\n });\n loop = lineLoop && targetLoop;\n if (!loop) {\n interpolatedLineTo(ctx, target, start, property);\n }\n }\n ctx.closePath();\n ctx.fill(loop ? 'evenodd' : 'nonzero');\n ctx.restore();\n }\n}\nfunction clipBounds(ctx, scale, bounds) {\n const { top , bottom } = scale.chart.chartArea;\n const { property , start , end } = bounds || {};\n if (property === 'x') {\n ctx.beginPath();\n ctx.rect(start, top, end - start, bottom - top);\n ctx.clip();\n }\n}\nfunction interpolatedLineTo(ctx, target, point, property) {\n const interpolatedPoint = target.interpolate(point, property);\n if (interpolatedPoint) {\n ctx.lineTo(interpolatedPoint.x, interpolatedPoint.y);\n }\n}\n\nvar index = {\n id: 'filler',\n afterDatasetsUpdate (chart, _args, options) {\n const count = (chart.data.datasets || []).length;\n const sources = [];\n let meta, i, line, source;\n for(i = 0; i < count; ++i){\n meta = chart.getDatasetMeta(i);\n line = meta.dataset;\n source = null;\n if (line && line.options && line instanceof LineElement) {\n source = {\n visible: chart.isDatasetVisible(i),\n index: i,\n fill: _decodeFill(line, i, count),\n chart,\n axis: meta.controller.options.indexAxis,\n scale: meta.vScale,\n line\n };\n }\n meta.$filler = source;\n sources.push(source);\n }\n for(i = 0; i < count; ++i){\n source = sources[i];\n if (!source || source.fill === false) {\n continue;\n }\n source.fill = _resolveTarget(sources, i, options.propagate);\n }\n },\n beforeDraw (chart, _args, options) {\n const draw = options.drawTime === 'beforeDraw';\n const metasets = chart.getSortedVisibleDatasetMetas();\n const area = chart.chartArea;\n for(let i = metasets.length - 1; i >= 0; --i){\n const source = metasets[i].$filler;\n if (!source) {\n continue;\n }\n source.line.updateControlPoints(area, source.axis);\n if (draw && source.fill) {\n _drawfill(chart.ctx, source, area);\n }\n }\n },\n beforeDatasetsDraw (chart, _args, options) {\n if (options.drawTime !== 'beforeDatasetsDraw') {\n return;\n }\n const metasets = chart.getSortedVisibleDatasetMetas();\n for(let i = metasets.length - 1; i >= 0; --i){\n const source = metasets[i].$filler;\n if (_shouldApplyFill(source)) {\n _drawfill(chart.ctx, source, chart.chartArea);\n }\n }\n },\n beforeDatasetDraw (chart, args, options) {\n const source = args.meta.$filler;\n if (!_shouldApplyFill(source) || options.drawTime !== 'beforeDatasetDraw') {\n return;\n }\n _drawfill(chart.ctx, source, chart.chartArea);\n },\n defaults: {\n propagate: true,\n drawTime: 'beforeDatasetDraw'\n }\n};\n\nconst getBoxSize = (labelOpts, fontSize)=>{\n let { boxHeight =fontSize , boxWidth =fontSize } = labelOpts;\n if (labelOpts.usePointStyle) {\n boxHeight = Math.min(boxHeight, fontSize);\n boxWidth = labelOpts.pointStyleWidth || Math.min(boxWidth, fontSize);\n }\n return {\n boxWidth,\n boxHeight,\n itemHeight: Math.max(fontSize, boxHeight)\n };\n};\nconst itemsEqual = (a, b)=>a !== null && b !== null && a.datasetIndex === b.datasetIndex && a.index === b.index;\nclass Legend extends Element {\n constructor(config){\n super();\n this._added = false;\n this.legendHitBoxes = [];\n this._hoveredItem = null;\n this.doughnutMode = false;\n this.chart = config.chart;\n this.options = config.options;\n this.ctx = config.ctx;\n this.legendItems = undefined;\n this.columnSizes = undefined;\n this.lineWidths = undefined;\n this.maxHeight = undefined;\n this.maxWidth = undefined;\n this.top = undefined;\n this.bottom = undefined;\n this.left = undefined;\n this.right = undefined;\n this.height = undefined;\n this.width = undefined;\n this._margins = undefined;\n this.position = undefined;\n this.weight = undefined;\n this.fullSize = undefined;\n }\n update(maxWidth, maxHeight, margins) {\n this.maxWidth = maxWidth;\n this.maxHeight = maxHeight;\n this._margins = margins;\n this.setDimensions();\n this.buildLabels();\n this.fit();\n }\n setDimensions() {\n if (this.isHorizontal()) {\n this.width = this.maxWidth;\n this.left = this._margins.left;\n this.right = this.width;\n } else {\n this.height = this.maxHeight;\n this.top = this._margins.top;\n this.bottom = this.height;\n }\n }\n buildLabels() {\n const labelOpts = this.options.labels || {};\n let legendItems = callback(labelOpts.generateLabels, [\n this.chart\n ], this) || [];\n if (labelOpts.filter) {\n legendItems = legendItems.filter((item)=>labelOpts.filter(item, this.chart.data));\n }\n if (labelOpts.sort) {\n legendItems = legendItems.sort((a, b)=>labelOpts.sort(a, b, this.chart.data));\n }\n if (this.options.reverse) {\n legendItems.reverse();\n }\n this.legendItems = legendItems;\n }\n fit() {\n const { options , ctx } = this;\n if (!options.display) {\n this.width = this.height = 0;\n return;\n }\n const labelOpts = options.labels;\n const labelFont = toFont(labelOpts.font);\n const fontSize = labelFont.size;\n const titleHeight = this._computeTitleHeight();\n const { boxWidth , itemHeight } = getBoxSize(labelOpts, fontSize);\n let width, height;\n ctx.font = labelFont.string;\n if (this.isHorizontal()) {\n width = this.maxWidth;\n height = this._fitRows(titleHeight, fontSize, boxWidth, itemHeight) + 10;\n } else {\n height = this.maxHeight;\n width = this._fitCols(titleHeight, labelFont, boxWidth, itemHeight) + 10;\n }\n this.width = Math.min(width, options.maxWidth || this.maxWidth);\n this.height = Math.min(height, options.maxHeight || this.maxHeight);\n }\n _fitRows(titleHeight, fontSize, boxWidth, itemHeight) {\n const { ctx , maxWidth , options: { labels: { padding } } } = this;\n const hitboxes = this.legendHitBoxes = [];\n const lineWidths = this.lineWidths = [\n 0\n ];\n const lineHeight = itemHeight + padding;\n let totalHeight = titleHeight;\n ctx.textAlign = 'left';\n ctx.textBaseline = 'middle';\n let row = -1;\n let top = -lineHeight;\n this.legendItems.forEach((legendItem, i)=>{\n const itemWidth = boxWidth + fontSize / 2 + ctx.measureText(legendItem.text).width;\n if (i === 0 || lineWidths[lineWidths.length - 1] + itemWidth + 2 * padding > maxWidth) {\n totalHeight += lineHeight;\n lineWidths[lineWidths.length - (i > 0 ? 0 : 1)] = 0;\n top += lineHeight;\n row++;\n }\n hitboxes[i] = {\n left: 0,\n top,\n row,\n width: itemWidth,\n height: itemHeight\n };\n lineWidths[lineWidths.length - 1] += itemWidth + padding;\n });\n return totalHeight;\n }\n _fitCols(titleHeight, labelFont, boxWidth, _itemHeight) {\n const { ctx , maxHeight , options: { labels: { padding } } } = this;\n const hitboxes = this.legendHitBoxes = [];\n const columnSizes = this.columnSizes = [];\n const heightLimit = maxHeight - titleHeight;\n let totalWidth = padding;\n let currentColWidth = 0;\n let currentColHeight = 0;\n let left = 0;\n let col = 0;\n this.legendItems.forEach((legendItem, i)=>{\n const { itemWidth , itemHeight } = calculateItemSize(boxWidth, labelFont, ctx, legendItem, _itemHeight);\n if (i > 0 && currentColHeight + itemHeight + 2 * padding > heightLimit) {\n totalWidth += currentColWidth + padding;\n columnSizes.push({\n width: currentColWidth,\n height: currentColHeight\n });\n left += currentColWidth + padding;\n col++;\n currentColWidth = currentColHeight = 0;\n }\n hitboxes[i] = {\n left,\n top: currentColHeight,\n col,\n width: itemWidth,\n height: itemHeight\n };\n currentColWidth = Math.max(currentColWidth, itemWidth);\n currentColHeight += itemHeight + padding;\n });\n totalWidth += currentColWidth;\n columnSizes.push({\n width: currentColWidth,\n height: currentColHeight\n });\n return totalWidth;\n }\n adjustHitBoxes() {\n if (!this.options.display) {\n return;\n }\n const titleHeight = this._computeTitleHeight();\n const { legendHitBoxes: hitboxes , options: { align , labels: { padding } , rtl } } = this;\n const rtlHelper = getRtlAdapter(rtl, this.left, this.width);\n if (this.isHorizontal()) {\n let row = 0;\n let left = _alignStartEnd(align, this.left + padding, this.right - this.lineWidths[row]);\n for (const hitbox of hitboxes){\n if (row !== hitbox.row) {\n row = hitbox.row;\n left = _alignStartEnd(align, this.left + padding, this.right - this.lineWidths[row]);\n }\n hitbox.top += this.top + titleHeight + padding;\n hitbox.left = rtlHelper.leftForLtr(rtlHelper.x(left), hitbox.width);\n left += hitbox.width + padding;\n }\n } else {\n let col = 0;\n let top = _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - this.columnSizes[col].height);\n for (const hitbox1 of hitboxes){\n if (hitbox1.col !== col) {\n col = hitbox1.col;\n top = _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - this.columnSizes[col].height);\n }\n hitbox1.top = top;\n hitbox1.left += this.left + padding;\n hitbox1.left = rtlHelper.leftForLtr(rtlHelper.x(hitbox1.left), hitbox1.width);\n top += hitbox1.height + padding;\n }\n }\n }\n isHorizontal() {\n return this.options.position === 'top' || this.options.position === 'bottom';\n }\n draw() {\n if (this.options.display) {\n const ctx = this.ctx;\n clipArea(ctx, this);\n this._draw();\n unclipArea(ctx);\n }\n }\n _draw() {\n const { options: opts , columnSizes , lineWidths , ctx } = this;\n const { align , labels: labelOpts } = opts;\n const defaultColor = defaults.color;\n const rtlHelper = getRtlAdapter(opts.rtl, this.left, this.width);\n const labelFont = toFont(labelOpts.font);\n const { padding } = labelOpts;\n const fontSize = labelFont.size;\n const halfFontSize = fontSize / 2;\n let cursor;\n this.drawTitle();\n ctx.textAlign = rtlHelper.textAlign('left');\n ctx.textBaseline = 'middle';\n ctx.lineWidth = 0.5;\n ctx.font = labelFont.string;\n const { boxWidth , boxHeight , itemHeight } = getBoxSize(labelOpts, fontSize);\n const drawLegendBox = function(x, y, legendItem) {\n if (isNaN(boxWidth) || boxWidth <= 0 || isNaN(boxHeight) || boxHeight < 0) {\n return;\n }\n ctx.save();\n const lineWidth = valueOrDefault(legendItem.lineWidth, 1);\n ctx.fillStyle = valueOrDefault(legendItem.fillStyle, defaultColor);\n ctx.lineCap = valueOrDefault(legendItem.lineCap, 'butt');\n ctx.lineDashOffset = valueOrDefault(legendItem.lineDashOffset, 0);\n ctx.lineJoin = valueOrDefault(legendItem.lineJoin, 'miter');\n ctx.lineWidth = lineWidth;\n ctx.strokeStyle = valueOrDefault(legendItem.strokeStyle, defaultColor);\n ctx.setLineDash(valueOrDefault(legendItem.lineDash, []));\n if (labelOpts.usePointStyle) {\n const drawOptions = {\n radius: boxHeight * Math.SQRT2 / 2,\n pointStyle: legendItem.pointStyle,\n rotation: legendItem.rotation,\n borderWidth: lineWidth\n };\n const centerX = rtlHelper.xPlus(x, boxWidth / 2);\n const centerY = y + halfFontSize;\n drawPointLegend(ctx, drawOptions, centerX, centerY, labelOpts.pointStyleWidth && boxWidth);\n } else {\n const yBoxTop = y + Math.max((fontSize - boxHeight) / 2, 0);\n const xBoxLeft = rtlHelper.leftForLtr(x, boxWidth);\n const borderRadius = toTRBLCorners(legendItem.borderRadius);\n ctx.beginPath();\n if (Object.values(borderRadius).some((v)=>v !== 0)) {\n addRoundedRectPath(ctx, {\n x: xBoxLeft,\n y: yBoxTop,\n w: boxWidth,\n h: boxHeight,\n radius: borderRadius\n });\n } else {\n ctx.rect(xBoxLeft, yBoxTop, boxWidth, boxHeight);\n }\n ctx.fill();\n if (lineWidth !== 0) {\n ctx.stroke();\n }\n }\n ctx.restore();\n };\n const fillText = function(x, y, legendItem) {\n renderText(ctx, legendItem.text, x, y + itemHeight / 2, labelFont, {\n strikethrough: legendItem.hidden,\n textAlign: rtlHelper.textAlign(legendItem.textAlign)\n });\n };\n const isHorizontal = this.isHorizontal();\n const titleHeight = this._computeTitleHeight();\n if (isHorizontal) {\n cursor = {\n x: _alignStartEnd(align, this.left + padding, this.right - lineWidths[0]),\n y: this.top + padding + titleHeight,\n line: 0\n };\n } else {\n cursor = {\n x: this.left + padding,\n y: _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - columnSizes[0].height),\n line: 0\n };\n }\n overrideTextDirection(this.ctx, opts.textDirection);\n const lineHeight = itemHeight + padding;\n this.legendItems.forEach((legendItem, i)=>{\n ctx.strokeStyle = legendItem.fontColor;\n ctx.fillStyle = legendItem.fontColor;\n const textWidth = ctx.measureText(legendItem.text).width;\n const textAlign = rtlHelper.textAlign(legendItem.textAlign || (legendItem.textAlign = labelOpts.textAlign));\n const width = boxWidth + halfFontSize + textWidth;\n let x = cursor.x;\n let y = cursor.y;\n rtlHelper.setWidth(this.width);\n if (isHorizontal) {\n if (i > 0 && x + width + padding > this.right) {\n y = cursor.y += lineHeight;\n cursor.line++;\n x = cursor.x = _alignStartEnd(align, this.left + padding, this.right - lineWidths[cursor.line]);\n }\n } else if (i > 0 && y + lineHeight > this.bottom) {\n x = cursor.x = x + columnSizes[cursor.line].width + padding;\n cursor.line++;\n y = cursor.y = _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - columnSizes[cursor.line].height);\n }\n const realX = rtlHelper.x(x);\n drawLegendBox(realX, y, legendItem);\n x = _textX(textAlign, x + boxWidth + halfFontSize, isHorizontal ? x + width : this.right, opts.rtl);\n fillText(rtlHelper.x(x), y, legendItem);\n if (isHorizontal) {\n cursor.x += width + padding;\n } else if (typeof legendItem.text !== 'string') {\n const fontLineHeight = labelFont.lineHeight;\n cursor.y += calculateLegendItemHeight(legendItem, fontLineHeight);\n } else {\n cursor.y += lineHeight;\n }\n });\n restoreTextDirection(this.ctx, opts.textDirection);\n }\n drawTitle() {\n const opts = this.options;\n const titleOpts = opts.title;\n const titleFont = toFont(titleOpts.font);\n const titlePadding = toPadding(titleOpts.padding);\n if (!titleOpts.display) {\n return;\n }\n const rtlHelper = getRtlAdapter(opts.rtl, this.left, this.width);\n const ctx = this.ctx;\n const position = titleOpts.position;\n const halfFontSize = titleFont.size / 2;\n const topPaddingPlusHalfFontSize = titlePadding.top + halfFontSize;\n let y;\n let left = this.left;\n let maxWidth = this.width;\n if (this.isHorizontal()) {\n maxWidth = Math.max(...this.lineWidths);\n y = this.top + topPaddingPlusHalfFontSize;\n left = _alignStartEnd(opts.align, left, this.right - maxWidth);\n } else {\n const maxHeight = this.columnSizes.reduce((acc, size)=>Math.max(acc, size.height), 0);\n y = topPaddingPlusHalfFontSize + _alignStartEnd(opts.align, this.top, this.bottom - maxHeight - opts.labels.padding - this._computeTitleHeight());\n }\n const x = _alignStartEnd(position, left, left + maxWidth);\n ctx.textAlign = rtlHelper.textAlign(_toLeftRightCenter(position));\n ctx.textBaseline = 'middle';\n ctx.strokeStyle = titleOpts.color;\n ctx.fillStyle = titleOpts.color;\n ctx.font = titleFont.string;\n renderText(ctx, titleOpts.text, x, y, titleFont);\n }\n _computeTitleHeight() {\n const titleOpts = this.options.title;\n const titleFont = toFont(titleOpts.font);\n const titlePadding = toPadding(titleOpts.padding);\n return titleOpts.display ? titleFont.lineHeight + titlePadding.height : 0;\n }\n _getLegendItemAt(x, y) {\n let i, hitBox, lh;\n if (_isBetween(x, this.left, this.right) && _isBetween(y, this.top, this.bottom)) {\n lh = this.legendHitBoxes;\n for(i = 0; i < lh.length; ++i){\n hitBox = lh[i];\n if (_isBetween(x, hitBox.left, hitBox.left + hitBox.width) && _isBetween(y, hitBox.top, hitBox.top + hitBox.height)) {\n return this.legendItems[i];\n }\n }\n }\n return null;\n }\n handleEvent(e) {\n const opts = this.options;\n if (!isListened(e.type, opts)) {\n return;\n }\n const hoveredItem = this._getLegendItemAt(e.x, e.y);\n if (e.type === 'mousemove' || e.type === 'mouseout') {\n const previous = this._hoveredItem;\n const sameItem = itemsEqual(previous, hoveredItem);\n if (previous && !sameItem) {\n callback(opts.onLeave, [\n e,\n previous,\n this\n ], this);\n }\n this._hoveredItem = hoveredItem;\n if (hoveredItem && !sameItem) {\n callback(opts.onHover, [\n e,\n hoveredItem,\n this\n ], this);\n }\n } else if (hoveredItem) {\n callback(opts.onClick, [\n e,\n hoveredItem,\n this\n ], this);\n }\n }\n}\nfunction calculateItemSize(boxWidth, labelFont, ctx, legendItem, _itemHeight) {\n const itemWidth = calculateItemWidth(legendItem, boxWidth, labelFont, ctx);\n const itemHeight = calculateItemHeight(_itemHeight, legendItem, labelFont.lineHeight);\n return {\n itemWidth,\n itemHeight\n };\n}\nfunction calculateItemWidth(legendItem, boxWidth, labelFont, ctx) {\n let legendItemText = legendItem.text;\n if (legendItemText && typeof legendItemText !== 'string') {\n legendItemText = legendItemText.reduce((a, b)=>a.length > b.length ? a : b);\n }\n return boxWidth + labelFont.size / 2 + ctx.measureText(legendItemText).width;\n}\nfunction calculateItemHeight(_itemHeight, legendItem, fontLineHeight) {\n let itemHeight = _itemHeight;\n if (typeof legendItem.text !== 'string') {\n itemHeight = calculateLegendItemHeight(legendItem, fontLineHeight);\n }\n return itemHeight;\n}\nfunction calculateLegendItemHeight(legendItem, fontLineHeight) {\n const labelHeight = legendItem.text ? legendItem.text.length + 0.5 : 0;\n return fontLineHeight * labelHeight;\n}\nfunction isListened(type, opts) {\n if ((type === 'mousemove' || type === 'mouseout') && (opts.onHover || opts.onLeave)) {\n return true;\n }\n if (opts.onClick && (type === 'click' || type === 'mouseup')) {\n return true;\n }\n return false;\n}\nvar plugin_legend = {\n id: 'legend',\n _element: Legend,\n start (chart, _args, options) {\n const legend = chart.legend = new Legend({\n ctx: chart.ctx,\n options,\n chart\n });\n layouts.configure(chart, legend, options);\n layouts.addBox(chart, legend);\n },\n stop (chart) {\n layouts.removeBox(chart, chart.legend);\n delete chart.legend;\n },\n beforeUpdate (chart, _args, options) {\n const legend = chart.legend;\n layouts.configure(chart, legend, options);\n legend.options = options;\n },\n afterUpdate (chart) {\n const legend = chart.legend;\n legend.buildLabels();\n legend.adjustHitBoxes();\n },\n afterEvent (chart, args) {\n if (!args.replay) {\n chart.legend.handleEvent(args.event);\n }\n },\n defaults: {\n display: true,\n position: 'top',\n align: 'center',\n fullSize: true,\n reverse: false,\n weight: 1000,\n onClick (e, legendItem, legend) {\n const index = legendItem.datasetIndex;\n const ci = legend.chart;\n if (ci.isDatasetVisible(index)) {\n ci.hide(index);\n legendItem.hidden = true;\n } else {\n ci.show(index);\n legendItem.hidden = false;\n }\n },\n onHover: null,\n onLeave: null,\n labels: {\n color: (ctx)=>ctx.chart.options.color,\n boxWidth: 40,\n padding: 10,\n generateLabels (chart) {\n const datasets = chart.data.datasets;\n const { labels: { usePointStyle , pointStyle , textAlign , color , useBorderRadius , borderRadius } } = chart.legend.options;\n return chart._getSortedDatasetMetas().map((meta)=>{\n const style = meta.controller.getStyle(usePointStyle ? 0 : undefined);\n const borderWidth = toPadding(style.borderWidth);\n return {\n text: datasets[meta.index].label,\n fillStyle: style.backgroundColor,\n fontColor: color,\n hidden: !meta.visible,\n lineCap: style.borderCapStyle,\n lineDash: style.borderDash,\n lineDashOffset: style.borderDashOffset,\n lineJoin: style.borderJoinStyle,\n lineWidth: (borderWidth.width + borderWidth.height) / 4,\n strokeStyle: style.borderColor,\n pointStyle: pointStyle || style.pointStyle,\n rotation: style.rotation,\n textAlign: textAlign || style.textAlign,\n borderRadius: useBorderRadius && (borderRadius || style.borderRadius),\n datasetIndex: meta.index\n };\n }, this);\n }\n },\n title: {\n color: (ctx)=>ctx.chart.options.color,\n display: false,\n position: 'center',\n text: ''\n }\n },\n descriptors: {\n _scriptable: (name)=>!name.startsWith('on'),\n labels: {\n _scriptable: (name)=>![\n 'generateLabels',\n 'filter',\n 'sort'\n ].includes(name)\n }\n }\n};\n\nclass Title extends Element {\n constructor(config){\n super();\n this.chart = config.chart;\n this.options = config.options;\n this.ctx = config.ctx;\n this._padding = undefined;\n this.top = undefined;\n this.bottom = undefined;\n this.left = undefined;\n this.right = undefined;\n this.width = undefined;\n this.height = undefined;\n this.position = undefined;\n this.weight = undefined;\n this.fullSize = undefined;\n }\n update(maxWidth, maxHeight) {\n const opts = this.options;\n this.left = 0;\n this.top = 0;\n if (!opts.display) {\n this.width = this.height = this.right = this.bottom = 0;\n return;\n }\n this.width = this.right = maxWidth;\n this.height = this.bottom = maxHeight;\n const lineCount = isArray(opts.text) ? opts.text.length : 1;\n this._padding = toPadding(opts.padding);\n const textSize = lineCount * toFont(opts.font).lineHeight + this._padding.height;\n if (this.isHorizontal()) {\n this.height = textSize;\n } else {\n this.width = textSize;\n }\n }\n isHorizontal() {\n const pos = this.options.position;\n return pos === 'top' || pos === 'bottom';\n }\n _drawArgs(offset) {\n const { top , left , bottom , right , options } = this;\n const align = options.align;\n let rotation = 0;\n let maxWidth, titleX, titleY;\n if (this.isHorizontal()) {\n titleX = _alignStartEnd(align, left, right);\n titleY = top + offset;\n maxWidth = right - left;\n } else {\n if (options.position === 'left') {\n titleX = left + offset;\n titleY = _alignStartEnd(align, bottom, top);\n rotation = PI * -0.5;\n } else {\n titleX = right - offset;\n titleY = _alignStartEnd(align, top, bottom);\n rotation = PI * 0.5;\n }\n maxWidth = bottom - top;\n }\n return {\n titleX,\n titleY,\n maxWidth,\n rotation\n };\n }\n draw() {\n const ctx = this.ctx;\n const opts = this.options;\n if (!opts.display) {\n return;\n }\n const fontOpts = toFont(opts.font);\n const lineHeight = fontOpts.lineHeight;\n const offset = lineHeight / 2 + this._padding.top;\n const { titleX , titleY , maxWidth , rotation } = this._drawArgs(offset);\n renderText(ctx, opts.text, 0, 0, fontOpts, {\n color: opts.color,\n maxWidth,\n rotation,\n textAlign: _toLeftRightCenter(opts.align),\n textBaseline: 'middle',\n translation: [\n titleX,\n titleY\n ]\n });\n }\n}\nfunction createTitle(chart, titleOpts) {\n const title = new Title({\n ctx: chart.ctx,\n options: titleOpts,\n chart\n });\n layouts.configure(chart, title, titleOpts);\n layouts.addBox(chart, title);\n chart.titleBlock = title;\n}\nvar plugin_title = {\n id: 'title',\n _element: Title,\n start (chart, _args, options) {\n createTitle(chart, options);\n },\n stop (chart) {\n const titleBlock = chart.titleBlock;\n layouts.removeBox(chart, titleBlock);\n delete chart.titleBlock;\n },\n beforeUpdate (chart, _args, options) {\n const title = chart.titleBlock;\n layouts.configure(chart, title, options);\n title.options = options;\n },\n defaults: {\n align: 'center',\n display: false,\n font: {\n weight: 'bold'\n },\n fullSize: true,\n padding: 10,\n position: 'top',\n text: '',\n weight: 2000\n },\n defaultRoutes: {\n color: 'color'\n },\n descriptors: {\n _scriptable: true,\n _indexable: false\n }\n};\n\nconst map = new WeakMap();\nvar plugin_subtitle = {\n id: 'subtitle',\n start (chart, _args, options) {\n const title = new Title({\n ctx: chart.ctx,\n options,\n chart\n });\n layouts.configure(chart, title, options);\n layouts.addBox(chart, title);\n map.set(chart, title);\n },\n stop (chart) {\n layouts.removeBox(chart, map.get(chart));\n map.delete(chart);\n },\n beforeUpdate (chart, _args, options) {\n const title = map.get(chart);\n layouts.configure(chart, title, options);\n title.options = options;\n },\n defaults: {\n align: 'center',\n display: false,\n font: {\n weight: 'normal'\n },\n fullSize: true,\n padding: 0,\n position: 'top',\n text: '',\n weight: 1500\n },\n defaultRoutes: {\n color: 'color'\n },\n descriptors: {\n _scriptable: true,\n _indexable: false\n }\n};\n\nconst positioners = {\n average (items) {\n if (!items.length) {\n return false;\n }\n let i, len;\n let x = 0;\n let y = 0;\n let count = 0;\n for(i = 0, len = items.length; i < len; ++i){\n const el = items[i].element;\n if (el && el.hasValue()) {\n const pos = el.tooltipPosition();\n x += pos.x;\n y += pos.y;\n ++count;\n }\n }\n return {\n x: x / count,\n y: y / count\n };\n },\n nearest (items, eventPosition) {\n if (!items.length) {\n return false;\n }\n let x = eventPosition.x;\n let y = eventPosition.y;\n let minDistance = Number.POSITIVE_INFINITY;\n let i, len, nearestElement;\n for(i = 0, len = items.length; i < len; ++i){\n const el = items[i].element;\n if (el && el.hasValue()) {\n const center = el.getCenterPoint();\n const d = distanceBetweenPoints(eventPosition, center);\n if (d < minDistance) {\n minDistance = d;\n nearestElement = el;\n }\n }\n }\n if (nearestElement) {\n const tp = nearestElement.tooltipPosition();\n x = tp.x;\n y = tp.y;\n }\n return {\n x,\n y\n };\n }\n};\nfunction pushOrConcat(base, toPush) {\n if (toPush) {\n if (isArray(toPush)) {\n Array.prototype.push.apply(base, toPush);\n } else {\n base.push(toPush);\n }\n }\n return base;\n}\n function splitNewlines(str) {\n if ((typeof str === 'string' || str instanceof String) && str.indexOf('\\n') > -1) {\n return str.split('\\n');\n }\n return str;\n}\n function createTooltipItem(chart, item) {\n const { element , datasetIndex , index } = item;\n const controller = chart.getDatasetMeta(datasetIndex).controller;\n const { label , value } = controller.getLabelAndValue(index);\n return {\n chart,\n label,\n parsed: controller.getParsed(index),\n raw: chart.data.datasets[datasetIndex].data[index],\n formattedValue: value,\n dataset: controller.getDataset(),\n dataIndex: index,\n datasetIndex,\n element\n };\n}\n function getTooltipSize(tooltip, options) {\n const ctx = tooltip.chart.ctx;\n const { body , footer , title } = tooltip;\n const { boxWidth , boxHeight } = options;\n const bodyFont = toFont(options.bodyFont);\n const titleFont = toFont(options.titleFont);\n const footerFont = toFont(options.footerFont);\n const titleLineCount = title.length;\n const footerLineCount = footer.length;\n const bodyLineItemCount = body.length;\n const padding = toPadding(options.padding);\n let height = padding.height;\n let width = 0;\n let combinedBodyLength = body.reduce((count, bodyItem)=>count + bodyItem.before.length + bodyItem.lines.length + bodyItem.after.length, 0);\n combinedBodyLength += tooltip.beforeBody.length + tooltip.afterBody.length;\n if (titleLineCount) {\n height += titleLineCount * titleFont.lineHeight + (titleLineCount - 1) * options.titleSpacing + options.titleMarginBottom;\n }\n if (combinedBodyLength) {\n const bodyLineHeight = options.displayColors ? Math.max(boxHeight, bodyFont.lineHeight) : bodyFont.lineHeight;\n height += bodyLineItemCount * bodyLineHeight + (combinedBodyLength - bodyLineItemCount) * bodyFont.lineHeight + (combinedBodyLength - 1) * options.bodySpacing;\n }\n if (footerLineCount) {\n height += options.footerMarginTop + footerLineCount * footerFont.lineHeight + (footerLineCount - 1) * options.footerSpacing;\n }\n let widthPadding = 0;\n const maxLineWidth = function(line) {\n width = Math.max(width, ctx.measureText(line).width + widthPadding);\n };\n ctx.save();\n ctx.font = titleFont.string;\n each(tooltip.title, maxLineWidth);\n ctx.font = bodyFont.string;\n each(tooltip.beforeBody.concat(tooltip.afterBody), maxLineWidth);\n widthPadding = options.displayColors ? boxWidth + 2 + options.boxPadding : 0;\n each(body, (bodyItem)=>{\n each(bodyItem.before, maxLineWidth);\n each(bodyItem.lines, maxLineWidth);\n each(bodyItem.after, maxLineWidth);\n });\n widthPadding = 0;\n ctx.font = footerFont.string;\n each(tooltip.footer, maxLineWidth);\n ctx.restore();\n width += padding.width;\n return {\n width,\n height\n };\n}\nfunction determineYAlign(chart, size) {\n const { y , height } = size;\n if (y < height / 2) {\n return 'top';\n } else if (y > chart.height - height / 2) {\n return 'bottom';\n }\n return 'center';\n}\nfunction doesNotFitWithAlign(xAlign, chart, options, size) {\n const { x , width } = size;\n const caret = options.caretSize + options.caretPadding;\n if (xAlign === 'left' && x + width + caret > chart.width) {\n return true;\n }\n if (xAlign === 'right' && x - width - caret < 0) {\n return true;\n }\n}\nfunction determineXAlign(chart, options, size, yAlign) {\n const { x , width } = size;\n const { width: chartWidth , chartArea: { left , right } } = chart;\n let xAlign = 'center';\n if (yAlign === 'center') {\n xAlign = x <= (left + right) / 2 ? 'left' : 'right';\n } else if (x <= width / 2) {\n xAlign = 'left';\n } else if (x >= chartWidth - width / 2) {\n xAlign = 'right';\n }\n if (doesNotFitWithAlign(xAlign, chart, options, size)) {\n xAlign = 'center';\n }\n return xAlign;\n}\n function determineAlignment(chart, options, size) {\n const yAlign = size.yAlign || options.yAlign || determineYAlign(chart, size);\n return {\n xAlign: size.xAlign || options.xAlign || determineXAlign(chart, options, size, yAlign),\n yAlign\n };\n}\nfunction alignX(size, xAlign) {\n let { x , width } = size;\n if (xAlign === 'right') {\n x -= width;\n } else if (xAlign === 'center') {\n x -= width / 2;\n }\n return x;\n}\nfunction alignY(size, yAlign, paddingAndSize) {\n let { y , height } = size;\n if (yAlign === 'top') {\n y += paddingAndSize;\n } else if (yAlign === 'bottom') {\n y -= height + paddingAndSize;\n } else {\n y -= height / 2;\n }\n return y;\n}\n function getBackgroundPoint(options, size, alignment, chart) {\n const { caretSize , caretPadding , cornerRadius } = options;\n const { xAlign , yAlign } = alignment;\n const paddingAndSize = caretSize + caretPadding;\n const { topLeft , topRight , bottomLeft , bottomRight } = toTRBLCorners(cornerRadius);\n let x = alignX(size, xAlign);\n const y = alignY(size, yAlign, paddingAndSize);\n if (yAlign === 'center') {\n if (xAlign === 'left') {\n x += paddingAndSize;\n } else if (xAlign === 'right') {\n x -= paddingAndSize;\n }\n } else if (xAlign === 'left') {\n x -= Math.max(topLeft, bottomLeft) + caretSize;\n } else if (xAlign === 'right') {\n x += Math.max(topRight, bottomRight) + caretSize;\n }\n return {\n x: _limitValue(x, 0, chart.width - size.width),\n y: _limitValue(y, 0, chart.height - size.height)\n };\n}\nfunction getAlignedX(tooltip, align, options) {\n const padding = toPadding(options.padding);\n return align === 'center' ? tooltip.x + tooltip.width / 2 : align === 'right' ? tooltip.x + tooltip.width - padding.right : tooltip.x + padding.left;\n}\n function getBeforeAfterBodyLines(callback) {\n return pushOrConcat([], splitNewlines(callback));\n}\nfunction createTooltipContext(parent, tooltip, tooltipItems) {\n return createContext(parent, {\n tooltip,\n tooltipItems,\n type: 'tooltip'\n });\n}\nfunction overrideCallbacks(callbacks, context) {\n const override = context && context.dataset && context.dataset.tooltip && context.dataset.tooltip.callbacks;\n return override ? callbacks.override(override) : callbacks;\n}\nconst defaultCallbacks = {\n beforeTitle: noop,\n title (tooltipItems) {\n if (tooltipItems.length > 0) {\n const item = tooltipItems[0];\n const labels = item.chart.data.labels;\n const labelCount = labels ? labels.length : 0;\n if (this && this.options && this.options.mode === 'dataset') {\n return item.dataset.label || '';\n } else if (item.label) {\n return item.label;\n } else if (labelCount > 0 && item.dataIndex < labelCount) {\n return labels[item.dataIndex];\n }\n }\n return '';\n },\n afterTitle: noop,\n beforeBody: noop,\n beforeLabel: noop,\n label (tooltipItem) {\n if (this && this.options && this.options.mode === 'dataset') {\n return tooltipItem.label + ': ' + tooltipItem.formattedValue || tooltipItem.formattedValue;\n }\n let label = tooltipItem.dataset.label || '';\n if (label) {\n label += ': ';\n }\n const value = tooltipItem.formattedValue;\n if (!isNullOrUndef(value)) {\n label += value;\n }\n return label;\n },\n labelColor (tooltipItem) {\n const meta = tooltipItem.chart.getDatasetMeta(tooltipItem.datasetIndex);\n const options = meta.controller.getStyle(tooltipItem.dataIndex);\n return {\n borderColor: options.borderColor,\n backgroundColor: options.backgroundColor,\n borderWidth: options.borderWidth,\n borderDash: options.borderDash,\n borderDashOffset: options.borderDashOffset,\n borderRadius: 0\n };\n },\n labelTextColor () {\n return this.options.bodyColor;\n },\n labelPointStyle (tooltipItem) {\n const meta = tooltipItem.chart.getDatasetMeta(tooltipItem.datasetIndex);\n const options = meta.controller.getStyle(tooltipItem.dataIndex);\n return {\n pointStyle: options.pointStyle,\n rotation: options.rotation\n };\n },\n afterLabel: noop,\n afterBody: noop,\n beforeFooter: noop,\n footer: noop,\n afterFooter: noop\n};\n function invokeCallbackWithFallback(callbacks, name, ctx, arg) {\n const result = callbacks[name].call(ctx, arg);\n if (typeof result === 'undefined') {\n return defaultCallbacks[name].call(ctx, arg);\n }\n return result;\n}\nclass Tooltip extends Element {\n static positioners = positioners;\n constructor(config){\n super();\n this.opacity = 0;\n this._active = [];\n this._eventPosition = undefined;\n this._size = undefined;\n this._cachedAnimations = undefined;\n this._tooltipItems = [];\n this.$animations = undefined;\n this.$context = undefined;\n this.chart = config.chart;\n this.options = config.options;\n this.dataPoints = undefined;\n this.title = undefined;\n this.beforeBody = undefined;\n this.body = undefined;\n this.afterBody = undefined;\n this.footer = undefined;\n this.xAlign = undefined;\n this.yAlign = undefined;\n this.x = undefined;\n this.y = undefined;\n this.height = undefined;\n this.width = undefined;\n this.caretX = undefined;\n this.caretY = undefined;\n this.labelColors = undefined;\n this.labelPointStyles = undefined;\n this.labelTextColors = undefined;\n }\n initialize(options) {\n this.options = options;\n this._cachedAnimations = undefined;\n this.$context = undefined;\n }\n _resolveAnimations() {\n const cached = this._cachedAnimations;\n if (cached) {\n return cached;\n }\n const chart = this.chart;\n const options = this.options.setContext(this.getContext());\n const opts = options.enabled && chart.options.animation && options.animations;\n const animations = new Animations(this.chart, opts);\n if (opts._cacheable) {\n this._cachedAnimations = Object.freeze(animations);\n }\n return animations;\n }\n getContext() {\n return this.$context || (this.$context = createTooltipContext(this.chart.getContext(), this, this._tooltipItems));\n }\n getTitle(context, options) {\n const { callbacks } = options;\n const beforeTitle = invokeCallbackWithFallback(callbacks, 'beforeTitle', this, context);\n const title = invokeCallbackWithFallback(callbacks, 'title', this, context);\n const afterTitle = invokeCallbackWithFallback(callbacks, 'afterTitle', this, context);\n let lines = [];\n lines = pushOrConcat(lines, splitNewlines(beforeTitle));\n lines = pushOrConcat(lines, splitNewlines(title));\n lines = pushOrConcat(lines, splitNewlines(afterTitle));\n return lines;\n }\n getBeforeBody(tooltipItems, options) {\n return getBeforeAfterBodyLines(invokeCallbackWithFallback(options.callbacks, 'beforeBody', this, tooltipItems));\n }\n getBody(tooltipItems, options) {\n const { callbacks } = options;\n const bodyItems = [];\n each(tooltipItems, (context)=>{\n const bodyItem = {\n before: [],\n lines: [],\n after: []\n };\n const scoped = overrideCallbacks(callbacks, context);\n pushOrConcat(bodyItem.before, splitNewlines(invokeCallbackWithFallback(scoped, 'beforeLabel', this, context)));\n pushOrConcat(bodyItem.lines, invokeCallbackWithFallback(scoped, 'label', this, context));\n pushOrConcat(bodyItem.after, splitNewlines(invokeCallbackWithFallback(scoped, 'afterLabel', this, context)));\n bodyItems.push(bodyItem);\n });\n return bodyItems;\n }\n getAfterBody(tooltipItems, options) {\n return getBeforeAfterBodyLines(invokeCallbackWithFallback(options.callbacks, 'afterBody', this, tooltipItems));\n }\n getFooter(tooltipItems, options) {\n const { callbacks } = options;\n const beforeFooter = invokeCallbackWithFallback(callbacks, 'beforeFooter', this, tooltipItems);\n const footer = invokeCallbackWithFallback(callbacks, 'footer', this, tooltipItems);\n const afterFooter = invokeCallbackWithFallback(callbacks, 'afterFooter', this, tooltipItems);\n let lines = [];\n lines = pushOrConcat(lines, splitNewlines(beforeFooter));\n lines = pushOrConcat(lines, splitNewlines(footer));\n lines = pushOrConcat(lines, splitNewlines(afterFooter));\n return lines;\n }\n _createItems(options) {\n const active = this._active;\n const data = this.chart.data;\n const labelColors = [];\n const labelPointStyles = [];\n const labelTextColors = [];\n let tooltipItems = [];\n let i, len;\n for(i = 0, len = active.length; i < len; ++i){\n tooltipItems.push(createTooltipItem(this.chart, active[i]));\n }\n if (options.filter) {\n tooltipItems = tooltipItems.filter((element, index, array)=>options.filter(element, index, array, data));\n }\n if (options.itemSort) {\n tooltipItems = tooltipItems.sort((a, b)=>options.itemSort(a, b, data));\n }\n each(tooltipItems, (context)=>{\n const scoped = overrideCallbacks(options.callbacks, context);\n labelColors.push(invokeCallbackWithFallback(scoped, 'labelColor', this, context));\n labelPointStyles.push(invokeCallbackWithFallback(scoped, 'labelPointStyle', this, context));\n labelTextColors.push(invokeCallbackWithFallback(scoped, 'labelTextColor', this, context));\n });\n this.labelColors = labelColors;\n this.labelPointStyles = labelPointStyles;\n this.labelTextColors = labelTextColors;\n this.dataPoints = tooltipItems;\n return tooltipItems;\n }\n update(changed, replay) {\n const options = this.options.setContext(this.getContext());\n const active = this._active;\n let properties;\n let tooltipItems = [];\n if (!active.length) {\n if (this.opacity !== 0) {\n properties = {\n opacity: 0\n };\n }\n } else {\n const position = positioners[options.position].call(this, active, this._eventPosition);\n tooltipItems = this._createItems(options);\n this.title = this.getTitle(tooltipItems, options);\n this.beforeBody = this.getBeforeBody(tooltipItems, options);\n this.body = this.getBody(tooltipItems, options);\n this.afterBody = this.getAfterBody(tooltipItems, options);\n this.footer = this.getFooter(tooltipItems, options);\n const size = this._size = getTooltipSize(this, options);\n const positionAndSize = Object.assign({}, position, size);\n const alignment = determineAlignment(this.chart, options, positionAndSize);\n const backgroundPoint = getBackgroundPoint(options, positionAndSize, alignment, this.chart);\n this.xAlign = alignment.xAlign;\n this.yAlign = alignment.yAlign;\n properties = {\n opacity: 1,\n x: backgroundPoint.x,\n y: backgroundPoint.y,\n width: size.width,\n height: size.height,\n caretX: position.x,\n caretY: position.y\n };\n }\n this._tooltipItems = tooltipItems;\n this.$context = undefined;\n if (properties) {\n this._resolveAnimations().update(this, properties);\n }\n if (changed && options.external) {\n options.external.call(this, {\n chart: this.chart,\n tooltip: this,\n replay\n });\n }\n }\n drawCaret(tooltipPoint, ctx, size, options) {\n const caretPosition = this.getCaretPosition(tooltipPoint, size, options);\n ctx.lineTo(caretPosition.x1, caretPosition.y1);\n ctx.lineTo(caretPosition.x2, caretPosition.y2);\n ctx.lineTo(caretPosition.x3, caretPosition.y3);\n }\n getCaretPosition(tooltipPoint, size, options) {\n const { xAlign , yAlign } = this;\n const { caretSize , cornerRadius } = options;\n const { topLeft , topRight , bottomLeft , bottomRight } = toTRBLCorners(cornerRadius);\n const { x: ptX , y: ptY } = tooltipPoint;\n const { width , height } = size;\n let x1, x2, x3, y1, y2, y3;\n if (yAlign === 'center') {\n y2 = ptY + height / 2;\n if (xAlign === 'left') {\n x1 = ptX;\n x2 = x1 - caretSize;\n y1 = y2 + caretSize;\n y3 = y2 - caretSize;\n } else {\n x1 = ptX + width;\n x2 = x1 + caretSize;\n y1 = y2 - caretSize;\n y3 = y2 + caretSize;\n }\n x3 = x1;\n } else {\n if (xAlign === 'left') {\n x2 = ptX + Math.max(topLeft, bottomLeft) + caretSize;\n } else if (xAlign === 'right') {\n x2 = ptX + width - Math.max(topRight, bottomRight) - caretSize;\n } else {\n x2 = this.caretX;\n }\n if (yAlign === 'top') {\n y1 = ptY;\n y2 = y1 - caretSize;\n x1 = x2 - caretSize;\n x3 = x2 + caretSize;\n } else {\n y1 = ptY + height;\n y2 = y1 + caretSize;\n x1 = x2 + caretSize;\n x3 = x2 - caretSize;\n }\n y3 = y1;\n }\n return {\n x1,\n x2,\n x3,\n y1,\n y2,\n y3\n };\n }\n drawTitle(pt, ctx, options) {\n const title = this.title;\n const length = title.length;\n let titleFont, titleSpacing, i;\n if (length) {\n const rtlHelper = getRtlAdapter(options.rtl, this.x, this.width);\n pt.x = getAlignedX(this, options.titleAlign, options);\n ctx.textAlign = rtlHelper.textAlign(options.titleAlign);\n ctx.textBaseline = 'middle';\n titleFont = toFont(options.titleFont);\n titleSpacing = options.titleSpacing;\n ctx.fillStyle = options.titleColor;\n ctx.font = titleFont.string;\n for(i = 0; i < length; ++i){\n ctx.fillText(title[i], rtlHelper.x(pt.x), pt.y + titleFont.lineHeight / 2);\n pt.y += titleFont.lineHeight + titleSpacing;\n if (i + 1 === length) {\n pt.y += options.titleMarginBottom - titleSpacing;\n }\n }\n }\n }\n _drawColorBox(ctx, pt, i, rtlHelper, options) {\n const labelColors = this.labelColors[i];\n const labelPointStyle = this.labelPointStyles[i];\n const { boxHeight , boxWidth , boxPadding } = options;\n const bodyFont = toFont(options.bodyFont);\n const colorX = getAlignedX(this, 'left', options);\n const rtlColorX = rtlHelper.x(colorX);\n const yOffSet = boxHeight < bodyFont.lineHeight ? (bodyFont.lineHeight - boxHeight) / 2 : 0;\n const colorY = pt.y + yOffSet;\n if (options.usePointStyle) {\n const drawOptions = {\n radius: Math.min(boxWidth, boxHeight) / 2,\n pointStyle: labelPointStyle.pointStyle,\n rotation: labelPointStyle.rotation,\n borderWidth: 1\n };\n const centerX = rtlHelper.leftForLtr(rtlColorX, boxWidth) + boxWidth / 2;\n const centerY = colorY + boxHeight / 2;\n ctx.strokeStyle = options.multiKeyBackground;\n ctx.fillStyle = options.multiKeyBackground;\n drawPoint(ctx, drawOptions, centerX, centerY);\n ctx.strokeStyle = labelColors.borderColor;\n ctx.fillStyle = labelColors.backgroundColor;\n drawPoint(ctx, drawOptions, centerX, centerY);\n } else {\n ctx.lineWidth = isObject(labelColors.borderWidth) ? Math.max(...Object.values(labelColors.borderWidth)) : labelColors.borderWidth || 1;\n ctx.strokeStyle = labelColors.borderColor;\n ctx.setLineDash(labelColors.borderDash || []);\n ctx.lineDashOffset = labelColors.borderDashOffset || 0;\n const outerX = rtlHelper.leftForLtr(rtlColorX, boxWidth - boxPadding);\n const innerX = rtlHelper.leftForLtr(rtlHelper.xPlus(rtlColorX, 1), boxWidth - boxPadding - 2);\n const borderRadius = toTRBLCorners(labelColors.borderRadius);\n if (Object.values(borderRadius).some((v)=>v !== 0)) {\n ctx.beginPath();\n ctx.fillStyle = options.multiKeyBackground;\n addRoundedRectPath(ctx, {\n x: outerX,\n y: colorY,\n w: boxWidth,\n h: boxHeight,\n radius: borderRadius\n });\n ctx.fill();\n ctx.stroke();\n ctx.fillStyle = labelColors.backgroundColor;\n ctx.beginPath();\n addRoundedRectPath(ctx, {\n x: innerX,\n y: colorY + 1,\n w: boxWidth - 2,\n h: boxHeight - 2,\n radius: borderRadius\n });\n ctx.fill();\n } else {\n ctx.fillStyle = options.multiKeyBackground;\n ctx.fillRect(outerX, colorY, boxWidth, boxHeight);\n ctx.strokeRect(outerX, colorY, boxWidth, boxHeight);\n ctx.fillStyle = labelColors.backgroundColor;\n ctx.fillRect(innerX, colorY + 1, boxWidth - 2, boxHeight - 2);\n }\n }\n ctx.fillStyle = this.labelTextColors[i];\n }\n drawBody(pt, ctx, options) {\n const { body } = this;\n const { bodySpacing , bodyAlign , displayColors , boxHeight , boxWidth , boxPadding } = options;\n const bodyFont = toFont(options.bodyFont);\n let bodyLineHeight = bodyFont.lineHeight;\n let xLinePadding = 0;\n const rtlHelper = getRtlAdapter(options.rtl, this.x, this.width);\n const fillLineOfText = function(line) {\n ctx.fillText(line, rtlHelper.x(pt.x + xLinePadding), pt.y + bodyLineHeight / 2);\n pt.y += bodyLineHeight + bodySpacing;\n };\n const bodyAlignForCalculation = rtlHelper.textAlign(bodyAlign);\n let bodyItem, textColor, lines, i, j, ilen, jlen;\n ctx.textAlign = bodyAlign;\n ctx.textBaseline = 'middle';\n ctx.font = bodyFont.string;\n pt.x = getAlignedX(this, bodyAlignForCalculation, options);\n ctx.fillStyle = options.bodyColor;\n each(this.beforeBody, fillLineOfText);\n xLinePadding = displayColors && bodyAlignForCalculation !== 'right' ? bodyAlign === 'center' ? boxWidth / 2 + boxPadding : boxWidth + 2 + boxPadding : 0;\n for(i = 0, ilen = body.length; i < ilen; ++i){\n bodyItem = body[i];\n textColor = this.labelTextColors[i];\n ctx.fillStyle = textColor;\n each(bodyItem.before, fillLineOfText);\n lines = bodyItem.lines;\n if (displayColors && lines.length) {\n this._drawColorBox(ctx, pt, i, rtlHelper, options);\n bodyLineHeight = Math.max(bodyFont.lineHeight, boxHeight);\n }\n for(j = 0, jlen = lines.length; j < jlen; ++j){\n fillLineOfText(lines[j]);\n bodyLineHeight = bodyFont.lineHeight;\n }\n each(bodyItem.after, fillLineOfText);\n }\n xLinePadding = 0;\n bodyLineHeight = bodyFont.lineHeight;\n each(this.afterBody, fillLineOfText);\n pt.y -= bodySpacing;\n }\n drawFooter(pt, ctx, options) {\n const footer = this.footer;\n const length = footer.length;\n let footerFont, i;\n if (length) {\n const rtlHelper = getRtlAdapter(options.rtl, this.x, this.width);\n pt.x = getAlignedX(this, options.footerAlign, options);\n pt.y += options.footerMarginTop;\n ctx.textAlign = rtlHelper.textAlign(options.footerAlign);\n ctx.textBaseline = 'middle';\n footerFont = toFont(options.footerFont);\n ctx.fillStyle = options.footerColor;\n ctx.font = footerFont.string;\n for(i = 0; i < length; ++i){\n ctx.fillText(footer[i], rtlHelper.x(pt.x), pt.y + footerFont.lineHeight / 2);\n pt.y += footerFont.lineHeight + options.footerSpacing;\n }\n }\n }\n drawBackground(pt, ctx, tooltipSize, options) {\n const { xAlign , yAlign } = this;\n const { x , y } = pt;\n const { width , height } = tooltipSize;\n const { topLeft , topRight , bottomLeft , bottomRight } = toTRBLCorners(options.cornerRadius);\n ctx.fillStyle = options.backgroundColor;\n ctx.strokeStyle = options.borderColor;\n ctx.lineWidth = options.borderWidth;\n ctx.beginPath();\n ctx.moveTo(x + topLeft, y);\n if (yAlign === 'top') {\n this.drawCaret(pt, ctx, tooltipSize, options);\n }\n ctx.lineTo(x + width - topRight, y);\n ctx.quadraticCurveTo(x + width, y, x + width, y + topRight);\n if (yAlign === 'center' && xAlign === 'right') {\n this.drawCaret(pt, ctx, tooltipSize, options);\n }\n ctx.lineTo(x + width, y + height - bottomRight);\n ctx.quadraticCurveTo(x + width, y + height, x + width - bottomRight, y + height);\n if (yAlign === 'bottom') {\n this.drawCaret(pt, ctx, tooltipSize, options);\n }\n ctx.lineTo(x + bottomLeft, y + height);\n ctx.quadraticCurveTo(x, y + height, x, y + height - bottomLeft);\n if (yAlign === 'center' && xAlign === 'left') {\n this.drawCaret(pt, ctx, tooltipSize, options);\n }\n ctx.lineTo(x, y + topLeft);\n ctx.quadraticCurveTo(x, y, x + topLeft, y);\n ctx.closePath();\n ctx.fill();\n if (options.borderWidth > 0) {\n ctx.stroke();\n }\n }\n _updateAnimationTarget(options) {\n const chart = this.chart;\n const anims = this.$animations;\n const animX = anims && anims.x;\n const animY = anims && anims.y;\n if (animX || animY) {\n const position = positioners[options.position].call(this, this._active, this._eventPosition);\n if (!position) {\n return;\n }\n const size = this._size = getTooltipSize(this, options);\n const positionAndSize = Object.assign({}, position, this._size);\n const alignment = determineAlignment(chart, options, positionAndSize);\n const point = getBackgroundPoint(options, positionAndSize, alignment, chart);\n if (animX._to !== point.x || animY._to !== point.y) {\n this.xAlign = alignment.xAlign;\n this.yAlign = alignment.yAlign;\n this.width = size.width;\n this.height = size.height;\n this.caretX = position.x;\n this.caretY = position.y;\n this._resolveAnimations().update(this, point);\n }\n }\n }\n _willRender() {\n return !!this.opacity;\n }\n draw(ctx) {\n const options = this.options.setContext(this.getContext());\n let opacity = this.opacity;\n if (!opacity) {\n return;\n }\n this._updateAnimationTarget(options);\n const tooltipSize = {\n width: this.width,\n height: this.height\n };\n const pt = {\n x: this.x,\n y: this.y\n };\n opacity = Math.abs(opacity) < 1e-3 ? 0 : opacity;\n const padding = toPadding(options.padding);\n const hasTooltipContent = this.title.length || this.beforeBody.length || this.body.length || this.afterBody.length || this.footer.length;\n if (options.enabled && hasTooltipContent) {\n ctx.save();\n ctx.globalAlpha = opacity;\n this.drawBackground(pt, ctx, tooltipSize, options);\n overrideTextDirection(ctx, options.textDirection);\n pt.y += padding.top;\n this.drawTitle(pt, ctx, options);\n this.drawBody(pt, ctx, options);\n this.drawFooter(pt, ctx, options);\n restoreTextDirection(ctx, options.textDirection);\n ctx.restore();\n }\n }\n getActiveElements() {\n return this._active || [];\n }\n setActiveElements(activeElements, eventPosition) {\n const lastActive = this._active;\n const active = activeElements.map(({ datasetIndex , index })=>{\n const meta = this.chart.getDatasetMeta(datasetIndex);\n if (!meta) {\n throw new Error('Cannot find a dataset at index ' + datasetIndex);\n }\n return {\n datasetIndex,\n element: meta.data[index],\n index\n };\n });\n const changed = !_elementsEqual(lastActive, active);\n const positionChanged = this._positionChanged(active, eventPosition);\n if (changed || positionChanged) {\n this._active = active;\n this._eventPosition = eventPosition;\n this._ignoreReplayEvents = true;\n this.update(true);\n }\n }\n handleEvent(e, replay, inChartArea = true) {\n if (replay && this._ignoreReplayEvents) {\n return false;\n }\n this._ignoreReplayEvents = false;\n const options = this.options;\n const lastActive = this._active || [];\n const active = this._getActiveElements(e, lastActive, replay, inChartArea);\n const positionChanged = this._positionChanged(active, e);\n const changed = replay || !_elementsEqual(active, lastActive) || positionChanged;\n if (changed) {\n this._active = active;\n if (options.enabled || options.external) {\n this._eventPosition = {\n x: e.x,\n y: e.y\n };\n this.update(true, replay);\n }\n }\n return changed;\n }\n _getActiveElements(e, lastActive, replay, inChartArea) {\n const options = this.options;\n if (e.type === 'mouseout') {\n return [];\n }\n if (!inChartArea) {\n return lastActive;\n }\n const active = this.chart.getElementsAtEventForMode(e, options.mode, options, replay);\n if (options.reverse) {\n active.reverse();\n }\n return active;\n }\n _positionChanged(active, e) {\n const { caretX , caretY , options } = this;\n const position = positioners[options.position].call(this, active, e);\n return position !== false && (caretX !== position.x || caretY !== position.y);\n }\n}\nvar plugin_tooltip = {\n id: 'tooltip',\n _element: Tooltip,\n positioners,\n afterInit (chart, _args, options) {\n if (options) {\n chart.tooltip = new Tooltip({\n chart,\n options\n });\n }\n },\n beforeUpdate (chart, _args, options) {\n if (chart.tooltip) {\n chart.tooltip.initialize(options);\n }\n },\n reset (chart, _args, options) {\n if (chart.tooltip) {\n chart.tooltip.initialize(options);\n }\n },\n afterDraw (chart) {\n const tooltip = chart.tooltip;\n if (tooltip && tooltip._willRender()) {\n const args = {\n tooltip\n };\n if (chart.notifyPlugins('beforeTooltipDraw', {\n ...args,\n cancelable: true\n }) === false) {\n return;\n }\n tooltip.draw(chart.ctx);\n chart.notifyPlugins('afterTooltipDraw', args);\n }\n },\n afterEvent (chart, args) {\n if (chart.tooltip) {\n const useFinalPosition = args.replay;\n if (chart.tooltip.handleEvent(args.event, useFinalPosition, args.inChartArea)) {\n args.changed = true;\n }\n }\n },\n defaults: {\n enabled: true,\n external: null,\n position: 'average',\n backgroundColor: 'rgba(0,0,0,0.8)',\n titleColor: '#fff',\n titleFont: {\n weight: 'bold'\n },\n titleSpacing: 2,\n titleMarginBottom: 6,\n titleAlign: 'left',\n bodyColor: '#fff',\n bodySpacing: 2,\n bodyFont: {},\n bodyAlign: 'left',\n footerColor: '#fff',\n footerSpacing: 2,\n footerMarginTop: 6,\n footerFont: {\n weight: 'bold'\n },\n footerAlign: 'left',\n padding: 6,\n caretPadding: 2,\n caretSize: 5,\n cornerRadius: 6,\n boxHeight: (ctx, opts)=>opts.bodyFont.size,\n boxWidth: (ctx, opts)=>opts.bodyFont.size,\n multiKeyBackground: '#fff',\n displayColors: true,\n boxPadding: 0,\n borderColor: 'rgba(0,0,0,0)',\n borderWidth: 0,\n animation: {\n duration: 400,\n easing: 'easeOutQuart'\n },\n animations: {\n numbers: {\n type: 'number',\n properties: [\n 'x',\n 'y',\n 'width',\n 'height',\n 'caretX',\n 'caretY'\n ]\n },\n opacity: {\n easing: 'linear',\n duration: 200\n }\n },\n callbacks: defaultCallbacks\n },\n defaultRoutes: {\n bodyFont: 'font',\n footerFont: 'font',\n titleFont: 'font'\n },\n descriptors: {\n _scriptable: (name)=>name !== 'filter' && name !== 'itemSort' && name !== 'external',\n _indexable: false,\n callbacks: {\n _scriptable: false,\n _indexable: false\n },\n animation: {\n _fallback: false\n },\n animations: {\n _fallback: 'animation'\n }\n },\n additionalOptionScopes: [\n 'interaction'\n ]\n};\n\n// eslint-disable-next-line @typescript-eslint/ban-ts-comment\n// Register built-ins\nChart.register(controllers, scales, elements, plugins);\nChart.helpers = {\n ...helpers\n};\nChart._adapters = _adapters;\nChart.Animation = Animation;\nChart.Animations = Animations;\nChart.animator = animator;\nChart.controllers = registry.controllers.items;\nChart.DatasetController = DatasetController;\nChart.Element = Element;\nChart.elements = elements;\nChart.Interaction = Interaction;\nChart.layouts = layouts;\nChart.platforms = platforms;\nChart.Scale = Scale;\nChart.Ticks = Ticks;\n// Compatibility with ESM extensions\nObject.assign(Chart, controllers, scales, elements, plugins, platforms);\nChart.Chart = Chart;\nif (typeof window !== 'undefined') {\n window.Chart = Chart;\n}\n\nreturn 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\ No newline at end of file diff --git a/lib/amd/src/chartjs-lazy.js b/lib/amd/src/chartjs-lazy.js index a4093370536..f5f01b82f47 100644 --- a/lib/amd/src/chartjs-lazy.js +++ b/lib/amd/src/chartjs-lazy.js @@ -1,7 +1,7 @@ /*! - * Chart.js v3.8.0 + * Chart.js v4.2.1 * https://www.chartjs.org - * (c) 2022 Chart.js Contributors + * (c) 2023 Chart.js Contributors * Released under the MIT License */ @@ -10,10 +10,37 @@ * * - Download Chartjs source code (zip) file from https://github.com/chartjs/Chart.js/releases/latest. * - You must build Chart.js to generate the dist files (https://www.chartjs.org/docs/latest/developers/contributing.html#building-and-testing). - * - Copy /dist/chart.js content to lib/amd/src/chartjs-lazy.js. + * Chart.js will generate a new file dist/chart.umd.js with minified format, in order to avoid the minification + * we need to modify rollup.config.js, find below code in the file: + * ``` + * 1. // UMD build + * 2. // dist/chart.umd.js + * 3. { + * 4. input: 'src/index.umd.ts', + * 5. plugins: plugins(true), + * 6. output: { + * 7. ... + * 8. }, + * 9. }, + * ``` + * + * Change line 5 into: + * ``` + * plugins: plugins(), + * ``` + * + * Save the file and run build script again. + * + * - Copy /dist/chart.umd.js content to lib/amd/src/chartjs-lazy.js. + * - Remove below line in the lib/amd/src/chartjs-lazy.js: + * ``` + * //# sourceMappingURL=chart.umd.js.map + * ``` * - Convert line endings to LF-Unix format. - * - Keep these instructions to the file. + * - Change the version number and the copyright year at the file header block. + * - Keep these instructions in the file. * - Visit lib/tests/other/chartjstestpage.php to see if the library still works after the update. + * */ (function (global, factory) { @@ -22,190 +49,819 @@ typeof define === 'function' && define.amd ? define(factory) : (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.Chart = factory()); })(this, (function () { 'use strict'; -function fontString(pixelSize, fontStyle, fontFamily) { - return fontStyle + ' ' + pixelSize + 'px ' + fontFamily; -} -const requestAnimFrame = (function() { - if (typeof window === 'undefined') { - return function(callback) { - return callback(); - }; - } - return window.requestAnimationFrame; -}()); -function throttled(fn, thisArg, updateFn) { - const updateArgs = updateFn || ((args) => Array.prototype.slice.call(args)); - let ticking = false; - let args = []; - return function(...rest) { - args = updateArgs(rest); - if (!ticking) { - ticking = true; - requestAnimFrame.call(window, () => { - ticking = false; - fn.apply(thisArg, args); - }); - } - }; -} -function debounce(fn, delay) { - let timeout; - return function(...args) { - if (delay) { - clearTimeout(timeout); - timeout = setTimeout(fn, delay, args); - } else { - fn.apply(this, args); - } - return delay; - }; -} -const _toLeftRightCenter = (align) => align === 'start' ? 'left' : align === 'end' ? 'right' : 'center'; -const _alignStartEnd = (align, start, end) => align === 'start' ? start : align === 'end' ? end : (start + end) / 2; -const _textX = (align, left, right, rtl) => { - const check = rtl ? 'left' : 'right'; - return align === check ? right : align === 'center' ? (left + right) / 2 : left; -}; +var plugins = /*#__PURE__*/Object.freeze({ +__proto__: null, +get Colors () { return plugin_colors; }, +get Decimation () { return plugin_decimation; }, +get Filler () { return index; }, +get Legend () { return plugin_legend; }, +get SubTitle () { return plugin_subtitle; }, +get Title () { return plugin_title; }, +get Tooltip () { return plugin_tooltip; } +}); -class Animator { - constructor() { - this._request = null; - this._charts = new Map(); - this._running = false; - this._lastDate = undefined; - } - _notify(chart, anims, date, type) { - const callbacks = anims.listeners[type]; - const numSteps = anims.duration; - callbacks.forEach(fn => fn({ - chart, - initial: anims.initial, - numSteps, - currentStep: Math.min(date - anims.start, numSteps) - })); - } - _refresh() { - if (this._request) { - return; +/** + * @namespace Chart.helpers + */ /** + * An empty function that can be used, for example, for optional callback. + */ function noop() { +/* noop */ } +/** + * Returns a unique id, sequentially generated from a global variable. + */ const uid = (()=>{ + let id = 0; + return ()=>id++; +})(); +/** + * Returns true if `value` is neither null nor undefined, else returns false. + * @param value - The value to test. + * @since 2.7.0 + */ function isNullOrUndef(value) { + return value === null || typeof value === 'undefined'; +} +/** + * Returns true if `value` is an array (including typed arrays), else returns false. + * @param value - The value to test. + * @function + */ function isArray(value) { + if (Array.isArray && Array.isArray(value)) { + return true; } - this._running = true; - this._request = requestAnimFrame.call(window, () => { - this._update(); - this._request = null; - if (this._running) { - this._refresh(); - } - }); - } - _update(date = Date.now()) { - let remaining = 0; - this._charts.forEach((anims, chart) => { - if (!anims.running || !anims.items.length) { - return; - } - const items = anims.items; - let i = items.length - 1; - let draw = false; - let item; - for (; i >= 0; --i) { - item = items[i]; - if (item._active) { - if (item._total > anims.duration) { - anims.duration = item._total; - } - item.tick(date); - draw = true; + const type = Object.prototype.toString.call(value); + if (type.slice(0, 7) === '[object' && type.slice(-6) === 'Array]') { + return true; + } + return false; +} +/** + * Returns true if `value` is an object (excluding null), else returns false. + * @param value - The value to test. + * @since 2.7.0 + */ function isObject(value) { + return value !== null && Object.prototype.toString.call(value) === '[object Object]'; +} +/** + * Returns true if `value` is a finite number, else returns false + * @param value - The value to test. + */ function isNumberFinite(value) { + return (typeof value === 'number' || value instanceof Number) && isFinite(+value); +} +/** + * Returns `value` if finite, else returns `defaultValue`. + * @param value - The value to return if defined. + * @param defaultValue - The value to return if `value` is not finite. + */ function finiteOrDefault(value, defaultValue) { + return isNumberFinite(value) ? value : defaultValue; +} +/** + * Returns `value` if defined, else returns `defaultValue`. + * @param value - The value to return if defined. + * @param defaultValue - The value to return if `value` is undefined. + */ function valueOrDefault(value, defaultValue) { + return typeof value === 'undefined' ? defaultValue : value; +} +const toPercentage = (value, dimension)=>typeof value === 'string' && value.endsWith('%') ? parseFloat(value) / 100 : +value / dimension; +const toDimension = (value, dimension)=>typeof value === 'string' && value.endsWith('%') ? parseFloat(value) / 100 * dimension : +value; +/** + * Calls `fn` with the given `args` in the scope defined by `thisArg` and returns the + * value returned by `fn`. If `fn` is not a function, this method returns undefined. + * @param fn - The function to call. + * @param args - The arguments with which `fn` should be called. + * @param [thisArg] - The value of `this` provided for the call to `fn`. + */ function callback(fn, args, thisArg) { + if (fn && typeof fn.call === 'function') { + return fn.apply(thisArg, args); + } +} +function each(loopable, fn, thisArg, reverse) { + let i, len, keys; + if (isArray(loopable)) { + len = loopable.length; + if (reverse) { + for(i = len - 1; i >= 0; i--){ + fn.call(thisArg, loopable[i], i); + } } else { - items[i] = items[items.length - 1]; - items.pop(); + for(i = 0; i < len; i++){ + fn.call(thisArg, loopable[i], i); + } } - } - if (draw) { - chart.draw(); - this._notify(chart, anims, date, 'progress'); - } - if (!items.length) { - anims.running = false; - this._notify(chart, anims, date, 'complete'); - anims.initial = false; - } - remaining += items.length; - }); - this._lastDate = date; - if (remaining === 0) { - this._running = false; - } - } - _getAnims(chart) { - const charts = this._charts; - let anims = charts.get(chart); - if (!anims) { - anims = { - running: false, - initial: true, - items: [], - listeners: { - complete: [], - progress: [] + } else if (isObject(loopable)) { + keys = Object.keys(loopable); + len = keys.length; + for(i = 0; i < len; i++){ + fn.call(thisArg, loopable[keys[i]], keys[i]); } - }; - charts.set(chart, anims); } - return anims; - } - listen(chart, event, cb) { - this._getAnims(chart).listeners[event].push(cb); - } - add(chart, items) { - if (!items || !items.length) { - return; +} +/** + * Returns true if the `a0` and `a1` arrays have the same content, else returns false. + * @param a0 - The array to compare + * @param a1 - The array to compare + * @private + */ function _elementsEqual(a0, a1) { + let i, ilen, v0, v1; + if (!a0 || !a1 || a0.length !== a1.length) { + return false; } - this._getAnims(chart).items.push(...items); - } - has(chart) { - return this._getAnims(chart).items.length > 0; - } - start(chart) { - const anims = this._charts.get(chart); - if (!anims) { - return; - } - anims.running = true; - anims.start = Date.now(); - anims.duration = anims.items.reduce((acc, cur) => Math.max(acc, cur._duration), 0); - this._refresh(); - } - running(chart) { - if (!this._running) { - return false; - } - const anims = this._charts.get(chart); - if (!anims || !anims.running || !anims.items.length) { - return false; + for(i = 0, ilen = a0.length; i < ilen; ++i){ + v0 = a0[i]; + v1 = a1[i]; + if (v0.datasetIndex !== v1.datasetIndex || v0.index !== v1.index) { + return false; + } } return true; - } - stop(chart) { - const anims = this._charts.get(chart); - if (!anims || !anims.items.length) { - return; - } - const items = anims.items; - let i = items.length - 1; - for (; i >= 0; --i) { - items[i].cancel(); - } - anims.items = []; - this._notify(chart, anims, Date.now(), 'complete'); - } - remove(chart) { - return this._charts.delete(chart); - } } -var animator = new Animator(); +/** + * Returns a deep copy of `source` without keeping references on objects and arrays. + * @param source - The value to clone. + */ function clone$1(source) { + if (isArray(source)) { + return source.map(clone$1); + } + if (isObject(source)) { + const target = Object.create(null); + const keys = Object.keys(source); + const klen = keys.length; + let k = 0; + for(; k < klen; ++k){ + target[keys[k]] = clone$1(source[keys[k]]); + } + return target; + } + return source; +} +function isValidKey(key) { + return [ + '__proto__', + 'prototype', + 'constructor' + ].indexOf(key) === -1; +} +/** + * The default merger when Chart.helpers.merge is called without merger option. + * Note(SB): also used by mergeConfig and mergeScaleConfig as fallback. + * @private + */ function _merger(key, target, source, options) { + if (!isValidKey(key)) { + return; + } + const tval = target[key]; + const sval = source[key]; + if (isObject(tval) && isObject(sval)) { + // eslint-disable-next-line @typescript-eslint/no-use-before-define + merge(tval, sval, options); + } else { + target[key] = clone$1(sval); + } +} +function merge(target, source, options) { + const sources = isArray(source) ? source : [ + source + ]; + const ilen = sources.length; + if (!isObject(target)) { + return target; + } + options = options || {}; + const merger = options.merger || _merger; + let current; + for(let i = 0; i < ilen; ++i){ + current = sources[i]; + if (!isObject(current)) { + continue; + } + const keys = Object.keys(current); + for(let k = 0, klen = keys.length; k < klen; ++k){ + merger(keys[k], target, current, options); + } + } + return target; +} +function mergeIf(target, source) { + // eslint-disable-next-line @typescript-eslint/no-use-before-define + return merge(target, source, { + merger: _mergerIf + }); +} +/** + * Merges source[key] in target[key] only if target[key] is undefined. + * @private + */ function _mergerIf(key, target, source) { + if (!isValidKey(key)) { + return; + } + const tval = target[key]; + const sval = source[key]; + if (isObject(tval) && isObject(sval)) { + mergeIf(tval, sval); + } else if (!Object.prototype.hasOwnProperty.call(target, key)) { + target[key] = clone$1(sval); + } +} +/** + * @private + */ function _deprecated(scope, value, previous, current) { + if (value !== undefined) { + console.warn(scope + ': "' + previous + '" is deprecated. Please use "' + current + '" instead'); + } +} +// resolveObjectKey resolver cache +const keyResolvers = { + // Chart.helpers.core resolveObjectKey should resolve empty key to root object + '': (v)=>v, + // default resolvers + x: (o)=>o.x, + y: (o)=>o.y +}; +/** + * @private + */ function _splitKey(key) { + const parts = key.split('.'); + const keys = []; + let tmp = ''; + for (const part of parts){ + tmp += part; + if (tmp.endsWith('\\')) { + tmp = tmp.slice(0, -1) + '.'; + } else { + keys.push(tmp); + tmp = ''; + } + } + return keys; +} +function _getKeyResolver(key) { + const keys = _splitKey(key); + return (obj)=>{ + for (const k of keys){ + if (k === '') { + break; + } + obj = obj && obj[k]; + } + return obj; + }; +} +function resolveObjectKey(obj, key) { + const resolver = keyResolvers[key] || (keyResolvers[key] = _getKeyResolver(key)); + return resolver(obj); +} +/** + * @private + */ function _capitalize(str) { + return str.charAt(0).toUpperCase() + str.slice(1); +} +const defined = (value)=>typeof value !== 'undefined'; +const isFunction = (value)=>typeof value === 'function'; +// Adapted from https://stackoverflow.com/questions/31128855/comparing-ecma6-sets-for-equality#31129384 +const setsEqual = (a, b)=>{ + if (a.size !== b.size) { + return false; + } + for (const item of a){ + if (!b.has(item)) { + return false; + } + } + return true; +}; +/** + * @param e - The event + * @private + */ function _isClickEvent(e) { + return e.type === 'mouseup' || e.type === 'click' || e.type === 'contextmenu'; +} + +/** + * @alias Chart.helpers.math + * @namespace + */ const PI = Math.PI; +const TAU = 2 * PI; +const PITAU = TAU + PI; +const INFINITY = Number.POSITIVE_INFINITY; +const RAD_PER_DEG = PI / 180; +const HALF_PI = PI / 2; +const QUARTER_PI = PI / 4; +const TWO_THIRDS_PI = PI * 2 / 3; +const log10 = Math.log10; +const sign = Math.sign; +function almostEquals(x, y, epsilon) { + return Math.abs(x - y) < epsilon; +} +/** + * Implementation of the nice number algorithm used in determining where axis labels will go + */ function niceNum(range) { + const roundedRange = Math.round(range); + range = almostEquals(range, roundedRange, range / 1000) ? roundedRange : range; + const niceRange = Math.pow(10, Math.floor(log10(range))); + const fraction = range / niceRange; + const niceFraction = fraction <= 1 ? 1 : fraction <= 2 ? 2 : fraction <= 5 ? 5 : 10; + return niceFraction * niceRange; +} +/** + * Returns an array of factors sorted from 1 to sqrt(value) + * @private + */ function _factorize(value) { + const result = []; + const sqrt = Math.sqrt(value); + let i; + for(i = 1; i < sqrt; i++){ + if (value % i === 0) { + result.push(i); + result.push(value / i); + } + } + if (sqrt === (sqrt | 0)) { + result.push(sqrt); + } + result.sort((a, b)=>a - b).pop(); + return result; +} +function isNumber(n) { + return !isNaN(parseFloat(n)) && isFinite(n); +} +function almostWhole(x, epsilon) { + const rounded = Math.round(x); + return rounded - epsilon <= x && rounded + epsilon >= x; +} +/** + * @private + */ function _setMinAndMaxByKey(array, target, property) { + let i, ilen, value; + for(i = 0, ilen = array.length; i < ilen; i++){ + value = array[i][property]; + if (!isNaN(value)) { + target.min = Math.min(target.min, value); + target.max = Math.max(target.max, value); + } + } +} +function toRadians(degrees) { + return degrees * (PI / 180); +} +function toDegrees(radians) { + return radians * (180 / PI); +} +/** + * Returns the number of decimal places + * i.e. the number of digits after the decimal point, of the value of this Number. + * @param x - A number. + * @returns The number of decimal places. + * @private + */ function _decimalPlaces(x) { + if (!isNumberFinite(x)) { + return; + } + let e = 1; + let p = 0; + while(Math.round(x * e) / e !== x){ + e *= 10; + p++; + } + return p; +} +// Gets the angle from vertical upright to the point about a centre. +function getAngleFromPoint(centrePoint, anglePoint) { + const distanceFromXCenter = anglePoint.x - centrePoint.x; + const distanceFromYCenter = anglePoint.y - centrePoint.y; + const radialDistanceFromCenter = Math.sqrt(distanceFromXCenter * distanceFromXCenter + distanceFromYCenter * distanceFromYCenter); + let angle = Math.atan2(distanceFromYCenter, distanceFromXCenter); + if (angle < -0.5 * PI) { + angle += TAU; // make sure the returned angle is in the range of (-PI/2, 3PI/2] + } + return { + angle, + distance: radialDistanceFromCenter + }; +} +function distanceBetweenPoints(pt1, pt2) { + return Math.sqrt(Math.pow(pt2.x - pt1.x, 2) + Math.pow(pt2.y - pt1.y, 2)); +} +/** + * Shortest distance between angles, in either direction. + * @private + */ function _angleDiff(a, b) { + return (a - b + PITAU) % TAU - PI; +} +/** + * Normalize angle to be between 0 and 2*PI + * @private + */ function _normalizeAngle(a) { + return (a % TAU + TAU) % TAU; +} +/** + * @private + */ function _angleBetween(angle, start, end, sameAngleIsFullCircle) { + const a = _normalizeAngle(angle); + const s = _normalizeAngle(start); + const e = _normalizeAngle(end); + const angleToStart = _normalizeAngle(s - a); + const angleToEnd = _normalizeAngle(e - a); + const startToAngle = _normalizeAngle(a - s); + const endToAngle = _normalizeAngle(a - e); + return a === s || a === e || sameAngleIsFullCircle && s === e || angleToStart > angleToEnd && startToAngle < endToAngle; +} +/** + * Limit `value` between `min` and `max` + * @param value + * @param min + * @param max + * @private + */ function _limitValue(value, min, max) { + return Math.max(min, Math.min(max, value)); +} +/** + * @param {number} value + * @private + */ function _int16Range(value) { + return _limitValue(value, -32768, 32767); +} +/** + * @param value + * @param start + * @param end + * @param [epsilon] + * @private + */ function _isBetween(value, start, end, epsilon = 1e-6) { + return value >= Math.min(start, end) - epsilon && value <= Math.max(start, end) + epsilon; +} + +function _lookup(table, value, cmp) { + cmp = cmp || ((index)=>table[index] < value); + let hi = table.length - 1; + let lo = 0; + let mid; + while(hi - lo > 1){ + mid = lo + hi >> 1; + if (cmp(mid)) { + lo = mid; + } else { + hi = mid; + } + } + return { + lo, + hi + }; +} +/** + * Binary search + * @param table - the table search. must be sorted! + * @param key - property name for the value in each entry + * @param value - value to find + * @param last - lookup last index + * @private + */ const _lookupByKey = (table, key, value, last)=>_lookup(table, value, last ? (index)=>{ + const ti = table[index][key]; + return ti < value || ti === value && table[index + 1][key] === value; + } : (index)=>table[index][key] < value); +/** + * Reverse binary search + * @param table - the table search. must be sorted! + * @param key - property name for the value in each entry + * @param value - value to find + * @private + */ const _rlookupByKey = (table, key, value)=>_lookup(table, value, (index)=>table[index][key] >= value); +/** + * Return subset of `values` between `min` and `max` inclusive. + * Values are assumed to be in sorted order. + * @param values - sorted array of values + * @param min - min value + * @param max - max value + */ function _filterBetween(values, min, max) { + let start = 0; + let end = values.length; + while(start < end && values[start] < min){ + start++; + } + while(end > start && values[end - 1] > max){ + end--; + } + return start > 0 || end < values.length ? values.slice(start, end) : values; +} +const arrayEvents = [ + 'push', + 'pop', + 'shift', + 'splice', + 'unshift' +]; +function listenArrayEvents(array, listener) { + if (array._chartjs) { + array._chartjs.listeners.push(listener); + return; + } + Object.defineProperty(array, '_chartjs', { + configurable: true, + enumerable: false, + value: { + listeners: [ + listener + ] + } + }); + arrayEvents.forEach((key)=>{ + const method = '_onData' + _capitalize(key); + const base = array[key]; + Object.defineProperty(array, key, { + configurable: true, + enumerable: false, + value (...args) { + const res = base.apply(this, args); + array._chartjs.listeners.forEach((object)=>{ + if (typeof object[method] === 'function') { + object[method](...args); + } + }); + return res; + } + }); + }); +} +function unlistenArrayEvents(array, listener) { + const stub = array._chartjs; + if (!stub) { + return; + } + const listeners = stub.listeners; + const index = listeners.indexOf(listener); + if (index !== -1) { + listeners.splice(index, 1); + } + if (listeners.length > 0) { + return; + } + arrayEvents.forEach((key)=>{ + delete array[key]; + }); + delete array._chartjs; +} +/** + * @param items + */ function _arrayUnique(items) { + const set = new Set(); + let i, ilen; + for(i = 0, ilen = items.length; i < ilen; ++i){ + set.add(items[i]); + } + if (set.size === ilen) { + return items; + } + return Array.from(set); +} + +function fontString(pixelSize, fontStyle, fontFamily) { + return fontStyle + ' ' + pixelSize + 'px ' + fontFamily; +} +/** +* Request animation polyfill +*/ const requestAnimFrame = function() { + if (typeof window === 'undefined') { + return function(callback) { + return callback(); + }; + } + return window.requestAnimationFrame; +}(); +/** + * Throttles calling `fn` once per animation frame + * Latest arguments are used on the actual call + */ function throttled(fn, thisArg) { + let argsToUse = []; + let ticking = false; + return function(...args) { + // Save the args for use later + argsToUse = args; + if (!ticking) { + ticking = true; + requestAnimFrame.call(window, ()=>{ + ticking = false; + fn.apply(thisArg, argsToUse); + }); + } + }; +} +/** + * Debounces calling `fn` for `delay` ms + */ function debounce(fn, delay) { + let timeout; + return function(...args) { + if (delay) { + clearTimeout(timeout); + timeout = setTimeout(fn, delay, args); + } else { + fn.apply(this, args); + } + return delay; + }; +} +/** + * Converts 'start' to 'left', 'end' to 'right' and others to 'center' + * @private + */ const _toLeftRightCenter = (align)=>align === 'start' ? 'left' : align === 'end' ? 'right' : 'center'; +/** + * Returns `start`, `end` or `(start + end) / 2` depending on `align`. Defaults to `center` + * @private + */ const _alignStartEnd = (align, start, end)=>align === 'start' ? start : align === 'end' ? end : (start + end) / 2; +/** + * Returns `left`, `right` or `(left + right) / 2` depending on `align`. Defaults to `left` + * @private + */ const _textX = (align, left, right, rtl)=>{ + const check = rtl ? 'left' : 'right'; + return align === check ? right : align === 'center' ? (left + right) / 2 : left; +}; +/** + * Return start and count of visible points. + * @private + */ function _getStartAndCountOfVisiblePoints(meta, points, animationsDisabled) { + const pointCount = points.length; + let start = 0; + let count = pointCount; + if (meta._sorted) { + const { iScale , _parsed } = meta; + const axis = iScale.axis; + const { min , max , minDefined , maxDefined } = iScale.getUserBounds(); + if (minDefined) { + start = _limitValue(Math.min(// @ts-expect-error Need to type _parsed + _lookupByKey(_parsed, iScale.axis, min).lo, // @ts-expect-error Need to fix types on _lookupByKey + animationsDisabled ? pointCount : _lookupByKey(points, axis, iScale.getPixelForValue(min)).lo), 0, pointCount - 1); + } + if (maxDefined) { + count = _limitValue(Math.max(// @ts-expect-error Need to type _parsed + _lookupByKey(_parsed, iScale.axis, max, true).hi + 1, // @ts-expect-error Need to fix types on _lookupByKey + animationsDisabled ? 0 : _lookupByKey(points, axis, iScale.getPixelForValue(max), true).hi + 1), start, pointCount) - start; + } else { + count = pointCount - start; + } + } + return { + start, + count + }; +} +/** + * Checks if the scale ranges have changed. + * @param {object} meta - dataset meta. + * @returns {boolean} + * @private + */ function _scaleRangesChanged(meta) { + const { xScale , yScale , _scaleRanges } = meta; + const newRanges = { + xmin: xScale.min, + xmax: xScale.max, + ymin: yScale.min, + ymax: yScale.max + }; + if (!_scaleRanges) { + meta._scaleRanges = newRanges; + return true; + } + const changed = _scaleRanges.xmin !== xScale.min || _scaleRanges.xmax !== xScale.max || _scaleRanges.ymin !== yScale.min || _scaleRanges.ymax !== yScale.max; + Object.assign(_scaleRanges, newRanges); + return changed; +} + +class Animator { + constructor(){ + this._request = null; + this._charts = new Map(); + this._running = false; + this._lastDate = undefined; + } + _notify(chart, anims, date, type) { + const callbacks = anims.listeners[type]; + const numSteps = anims.duration; + callbacks.forEach((fn)=>fn({ + chart, + initial: anims.initial, + numSteps, + currentStep: Math.min(date - anims.start, numSteps) + })); + } + _refresh() { + if (this._request) { + return; + } + this._running = true; + this._request = requestAnimFrame.call(window, ()=>{ + this._update(); + this._request = null; + if (this._running) { + this._refresh(); + } + }); + } + _update(date = Date.now()) { + let remaining = 0; + this._charts.forEach((anims, chart)=>{ + if (!anims.running || !anims.items.length) { + return; + } + const items = anims.items; + let i = items.length - 1; + let draw = false; + let item; + for(; i >= 0; --i){ + item = items[i]; + if (item._active) { + if (item._total > anims.duration) { + anims.duration = item._total; + } + item.tick(date); + draw = true; + } else { + items[i] = items[items.length - 1]; + items.pop(); + } + } + if (draw) { + chart.draw(); + this._notify(chart, anims, date, 'progress'); + } + if (!items.length) { + anims.running = false; + this._notify(chart, anims, date, 'complete'); + anims.initial = false; + } + remaining += items.length; + }); + this._lastDate = date; + if (remaining === 0) { + this._running = false; + } + } + _getAnims(chart) { + const charts = this._charts; + let anims = charts.get(chart); + if (!anims) { + anims = { + running: false, + initial: true, + items: [], + listeners: { + complete: [], + progress: [] + } + }; + charts.set(chart, anims); + } + return anims; + } + listen(chart, event, cb) { + this._getAnims(chart).listeners[event].push(cb); + } + add(chart, items) { + if (!items || !items.length) { + return; + } + this._getAnims(chart).items.push(...items); + } + has(chart) { + return this._getAnims(chart).items.length > 0; + } + start(chart) { + const anims = this._charts.get(chart); + if (!anims) { + return; + } + anims.running = true; + anims.start = Date.now(); + anims.duration = anims.items.reduce((acc, cur)=>Math.max(acc, cur._duration), 0); + this._refresh(); + } + running(chart) { + if (!this._running) { + return false; + } + const anims = this._charts.get(chart); + if (!anims || !anims.running || !anims.items.length) { + return false; + } + return true; + } + stop(chart) { + const anims = this._charts.get(chart); + if (!anims || !anims.items.length) { + return; + } + const items = anims.items; + let i = items.length - 1; + for(; i >= 0; --i){ + items[i].cancel(); + } + anims.items = []; + this._notify(chart, anims, Date.now(), 'complete'); + } + remove(chart) { + return this._charts.delete(chart); + } +} +var animator = /* #__PURE__ */ new Animator(); /*! - * @kurkle/color v0.2.1 + * @kurkle/color v0.3.0 * https://github.com/kurkle/color#readme * (c) 2022 Jukka Kurkela * Released under the MIT License @@ -641,7 +1297,7 @@ function modHSL(v, i, ratio) { v.b = tmp[2]; } } -function clone$1(v, proto) { +function clone(v, proto) { return v ? Object.assign(proto || {}, v) : v; } function fromObject(input) { @@ -654,7 +1310,7 @@ function fromObject(input) { } } } else { - v = clone$1(input, {r: 0, g: 0, b: 0, a: 1}); + v = clone(input, {r: 0, g: 0, b: 0, a: 1}); v.a = n2b(v.a); } return v; @@ -684,7 +1340,7 @@ class Color { return this._valid; } get rgb() { - var v = clone$1(this._rgb); + var v = clone(this._rgb); if (v) { v.a = b2n(v.a); } @@ -777,1927 +1433,1942 @@ class Color { return this; } } -function index_esm(input) { - return new Color(input); -} function isPatternOrGradient(value) { - if (value && typeof value === 'object') { - const type = value.toString(); - return type === '[object CanvasPattern]' || type === '[object CanvasGradient]'; - } - return false; + if (value && typeof value === 'object') { + const type = value.toString(); + return type === '[object CanvasPattern]' || type === '[object CanvasGradient]'; + } + return false; } function color(value) { - return isPatternOrGradient(value) ? value : index_esm(value); + return isPatternOrGradient(value) ? value : new Color(value); } function getHoverColor(value) { - return isPatternOrGradient(value) - ? value - : index_esm(value).saturate(0.5).darken(0.1).hexString(); + return isPatternOrGradient(value) ? value : new Color(value).saturate(0.5).darken(0.1).hexString(); } -function noop() {} -const uid = (function() { - let id = 0; - return function() { - return id++; - }; -}()); -function isNullOrUndef(value) { - return value === null || typeof value === 'undefined'; -} -function isArray(value) { - if (Array.isArray && Array.isArray(value)) { - return true; - } - const type = Object.prototype.toString.call(value); - if (type.slice(0, 7) === '[object' && type.slice(-6) === 'Array]') { - return true; - } - return false; -} -function isObject(value) { - return value !== null && Object.prototype.toString.call(value) === '[object Object]'; -} -const isNumberFinite = (value) => (typeof value === 'number' || value instanceof Number) && isFinite(+value); -function finiteOrDefault(value, defaultValue) { - return isNumberFinite(value) ? value : defaultValue; -} -function valueOrDefault(value, defaultValue) { - return typeof value === 'undefined' ? defaultValue : value; -} -const toPercentage = (value, dimension) => - typeof value === 'string' && value.endsWith('%') ? - parseFloat(value) / 100 - : value / dimension; -const toDimension = (value, dimension) => - typeof value === 'string' && value.endsWith('%') ? - parseFloat(value) / 100 * dimension - : +value; -function callback(fn, args, thisArg) { - if (fn && typeof fn.call === 'function') { - return fn.apply(thisArg, args); - } -} -function each(loopable, fn, thisArg, reverse) { - let i, len, keys; - if (isArray(loopable)) { - len = loopable.length; - if (reverse) { - for (i = len - 1; i >= 0; i--) { - fn.call(thisArg, loopable[i], i); - } - } else { - for (i = 0; i < len; i++) { - fn.call(thisArg, loopable[i], i); - } - } - } else if (isObject(loopable)) { - keys = Object.keys(loopable); - len = keys.length; - for (i = 0; i < len; i++) { - fn.call(thisArg, loopable[keys[i]], keys[i]); - } - } -} -function _elementsEqual(a0, a1) { - let i, ilen, v0, v1; - if (!a0 || !a1 || a0.length !== a1.length) { - return false; - } - for (i = 0, ilen = a0.length; i < ilen; ++i) { - v0 = a0[i]; - v1 = a1[i]; - if (v0.datasetIndex !== v1.datasetIndex || v0.index !== v1.index) { - return false; - } - } - return true; -} -function clone(source) { - if (isArray(source)) { - return source.map(clone); - } - if (isObject(source)) { - const target = Object.create(null); - const keys = Object.keys(source); - const klen = keys.length; - let k = 0; - for (; k < klen; ++k) { - target[keys[k]] = clone(source[keys[k]]); - } - return target; - } - return source; -} -function isValidKey(key) { - return ['__proto__', 'prototype', 'constructor'].indexOf(key) === -1; -} -function _merger(key, target, source, options) { - if (!isValidKey(key)) { - return; - } - const tval = target[key]; - const sval = source[key]; - if (isObject(tval) && isObject(sval)) { - merge(tval, sval, options); - } else { - target[key] = clone(sval); - } -} -function merge(target, source, options) { - const sources = isArray(source) ? source : [source]; - const ilen = sources.length; - if (!isObject(target)) { - return target; - } - options = options || {}; - const merger = options.merger || _merger; - for (let i = 0; i < ilen; ++i) { - source = sources[i]; - if (!isObject(source)) { - continue; - } - const keys = Object.keys(source); - for (let k = 0, klen = keys.length; k < klen; ++k) { - merger(keys[k], target, source, options); - } - } - return target; -} -function mergeIf(target, source) { - return merge(target, source, {merger: _mergerIf}); -} -function _mergerIf(key, target, source) { - if (!isValidKey(key)) { - return; - } - const tval = target[key]; - const sval = source[key]; - if (isObject(tval) && isObject(sval)) { - mergeIf(tval, sval); - } else if (!Object.prototype.hasOwnProperty.call(target, key)) { - target[key] = clone(sval); - } -} -function _deprecated(scope, value, previous, current) { - if (value !== undefined) { - console.warn(scope + ': "' + previous + - '" is deprecated. Please use "' + current + '" instead'); - } -} -const emptyString = ''; -const dot = '.'; -function indexOfDotOrLength(key, start) { - const idx = key.indexOf(dot, start); - return idx === -1 ? key.length : idx; -} -function resolveObjectKey(obj, key) { - if (key === emptyString) { - return obj; - } - let pos = 0; - let idx = indexOfDotOrLength(key, pos); - while (obj && idx > pos) { - obj = obj[key.slice(pos, idx)]; - pos = idx + 1; - idx = indexOfDotOrLength(key, pos); - } - return obj; -} -function _capitalize(str) { - return str.charAt(0).toUpperCase() + str.slice(1); -} -const defined = (value) => typeof value !== 'undefined'; -const isFunction = (value) => typeof value === 'function'; -const setsEqual = (a, b) => { - if (a.size !== b.size) { - return false; - } - for (const item of a) { - if (!b.has(item)) { - return false; - } - } - return true; -}; -function _isClickEvent(e) { - return e.type === 'mouseup' || e.type === 'click' || e.type === 'contextmenu'; -} - -const overrides = Object.create(null); -const descriptors = Object.create(null); -function getScope$1(node, key) { - if (!key) { - return node; - } - const keys = key.split('.'); - for (let i = 0, n = keys.length; i < n; ++i) { - const k = keys[i]; - node = node[k] || (node[k] = Object.create(null)); - } - return node; -} -function set(root, scope, values) { - if (typeof scope === 'string') { - return merge(getScope$1(root, scope), values); - } - return merge(getScope$1(root, ''), scope); -} -class Defaults { - constructor(_descriptors) { - this.animation = undefined; - this.backgroundColor = 'rgba(0,0,0,0.1)'; - this.borderColor = 'rgba(0,0,0,0.1)'; - this.color = '#666'; - this.datasets = {}; - this.devicePixelRatio = (context) => context.chart.platform.getDevicePixelRatio(); - this.elements = {}; - this.events = [ - 'mousemove', - 'mouseout', - 'click', - 'touchstart', - 'touchmove' - ]; - this.font = { - family: "'Helvetica Neue', 'Helvetica', 'Arial', sans-serif", - size: 12, - style: 'normal', - lineHeight: 1.2, - weight: null - }; - this.hover = {}; - this.hoverBackgroundColor = (ctx, options) => getHoverColor(options.backgroundColor); - this.hoverBorderColor = (ctx, options) => getHoverColor(options.borderColor); - this.hoverColor = (ctx, options) => getHoverColor(options.color); - this.indexAxis = 'x'; - this.interaction = { - mode: 'nearest', - intersect: true, - includeInvisible: false - }; - this.maintainAspectRatio = true; - this.onHover = null; - this.onClick = null; - this.parsing = true; - this.plugins = {}; - this.responsive = true; - this.scale = undefined; - this.scales = {}; - this.showLine = true; - this.drawActiveElementsOnTop = true; - this.describe(_descriptors); - } - set(scope, values) { - return set(this, scope, values); - } - get(scope) { - return getScope$1(this, scope); - } - describe(scope, values) { - return set(descriptors, scope, values); - } - override(scope, values) { - return set(overrides, scope, values); - } - route(scope, name, targetScope, targetName) { - const scopeObject = getScope$1(this, scope); - const targetScopeObject = getScope$1(this, targetScope); - const privateName = '_' + name; - Object.defineProperties(scopeObject, { - [privateName]: { - value: scopeObject[name], - writable: true - }, - [name]: { - enumerable: true, - get() { - const local = this[privateName]; - const target = targetScopeObject[targetName]; - if (isObject(local)) { - return Object.assign({}, target, local); - } - return valueOrDefault(local, target); +const numbers = [ + 'x', + 'y', + 'borderWidth', + 'radius', + 'tension' +]; +const colors = [ + 'color', + 'borderColor', + 'backgroundColor' +]; +function applyAnimationsDefaults(defaults) { + defaults.set('animation', { + delay: undefined, + duration: 1000, + easing: 'easeOutQuart', + fn: undefined, + from: undefined, + loop: undefined, + to: undefined, + type: undefined + }); + defaults.describe('animation', { + _fallback: false, + _indexable: false, + _scriptable: (name)=>name !== 'onProgress' && name !== 'onComplete' && name !== 'fn' + }); + defaults.set('animations', { + colors: { + type: 'color', + properties: colors }, - set(value) { - this[privateName] = value; + numbers: { + type: 'number', + properties: numbers } - } }); - } -} -var defaults = new Defaults({ - _scriptable: (name) => !name.startsWith('on'), - _indexable: (name) => name !== 'events', - hover: { - _fallback: 'interaction' - }, - interaction: { - _scriptable: false, - _indexable: false, - } -}); - -function _lookup(table, value, cmp) { - cmp = cmp || ((index) => table[index] < value); - let hi = table.length - 1; - let lo = 0; - let mid; - while (hi - lo > 1) { - mid = (lo + hi) >> 1; - if (cmp(mid)) { - lo = mid; - } else { - hi = mid; - } - } - return {lo, hi}; -} -const _lookupByKey = (table, key, value) => - _lookup(table, value, index => table[index][key] < value); -const _rlookupByKey = (table, key, value) => - _lookup(table, value, index => table[index][key] >= value); -function _filterBetween(values, min, max) { - let start = 0; - let end = values.length; - while (start < end && values[start] < min) { - start++; - } - while (end > start && values[end - 1] > max) { - end--; - } - return start > 0 || end < values.length - ? values.slice(start, end) - : values; -} -const arrayEvents = ['push', 'pop', 'shift', 'splice', 'unshift']; -function listenArrayEvents(array, listener) { - if (array._chartjs) { - array._chartjs.listeners.push(listener); - return; - } - Object.defineProperty(array, '_chartjs', { - configurable: true, - enumerable: false, - value: { - listeners: [listener] - } - }); - arrayEvents.forEach((key) => { - const method = '_onData' + _capitalize(key); - const base = array[key]; - Object.defineProperty(array, key, { - configurable: true, - enumerable: false, - value(...args) { - const res = base.apply(this, args); - array._chartjs.listeners.forEach((object) => { - if (typeof object[method] === 'function') { - object[method](...args); - } - }); - return res; - } + defaults.describe('animations', { + _fallback: 'animation' }); - }); -} -function unlistenArrayEvents(array, listener) { - const stub = array._chartjs; - if (!stub) { - return; - } - const listeners = stub.listeners; - const index = listeners.indexOf(listener); - if (index !== -1) { - listeners.splice(index, 1); - } - if (listeners.length > 0) { - return; - } - arrayEvents.forEach((key) => { - delete array[key]; - }); - delete array._chartjs; -} -function _arrayUnique(items) { - const set = new Set(); - let i, ilen; - for (i = 0, ilen = items.length; i < ilen; ++i) { - set.add(items[i]); - } - if (set.size === ilen) { - return items; - } - return Array.from(set); -} - -const PI = Math.PI; -const TAU = 2 * PI; -const PITAU = TAU + PI; -const INFINITY = Number.POSITIVE_INFINITY; -const RAD_PER_DEG = PI / 180; -const HALF_PI = PI / 2; -const QUARTER_PI = PI / 4; -const TWO_THIRDS_PI = PI * 2 / 3; -const log10 = Math.log10; -const sign = Math.sign; -function niceNum(range) { - const roundedRange = Math.round(range); - range = almostEquals(range, roundedRange, range / 1000) ? roundedRange : range; - const niceRange = Math.pow(10, Math.floor(log10(range))); - const fraction = range / niceRange; - const niceFraction = fraction <= 1 ? 1 : fraction <= 2 ? 2 : fraction <= 5 ? 5 : 10; - return niceFraction * niceRange; -} -function _factorize(value) { - const result = []; - const sqrt = Math.sqrt(value); - let i; - for (i = 1; i < sqrt; i++) { - if (value % i === 0) { - result.push(i); - result.push(value / i); - } - } - if (sqrt === (sqrt | 0)) { - result.push(sqrt); - } - result.sort((a, b) => a - b).pop(); - return result; -} -function isNumber(n) { - return !isNaN(parseFloat(n)) && isFinite(n); -} -function almostEquals(x, y, epsilon) { - return Math.abs(x - y) < epsilon; -} -function almostWhole(x, epsilon) { - const rounded = Math.round(x); - return ((rounded - epsilon) <= x) && ((rounded + epsilon) >= x); -} -function _setMinAndMaxByKey(array, target, property) { - let i, ilen, value; - for (i = 0, ilen = array.length; i < ilen; i++) { - value = array[i][property]; - if (!isNaN(value)) { - target.min = Math.min(target.min, value); - target.max = Math.max(target.max, value); - } - } -} -function toRadians(degrees) { - return degrees * (PI / 180); -} -function toDegrees(radians) { - return radians * (180 / PI); -} -function _decimalPlaces(x) { - if (!isNumberFinite(x)) { - return; - } - let e = 1; - let p = 0; - while (Math.round(x * e) / e !== x) { - e *= 10; - p++; - } - return p; -} -function getAngleFromPoint(centrePoint, anglePoint) { - const distanceFromXCenter = anglePoint.x - centrePoint.x; - const distanceFromYCenter = anglePoint.y - centrePoint.y; - const radialDistanceFromCenter = Math.sqrt(distanceFromXCenter * distanceFromXCenter + distanceFromYCenter * distanceFromYCenter); - let angle = Math.atan2(distanceFromYCenter, distanceFromXCenter); - if (angle < (-0.5 * PI)) { - angle += TAU; - } - return { - angle, - distance: radialDistanceFromCenter - }; -} -function distanceBetweenPoints(pt1, pt2) { - return Math.sqrt(Math.pow(pt2.x - pt1.x, 2) + Math.pow(pt2.y - pt1.y, 2)); -} -function _angleDiff(a, b) { - return (a - b + PITAU) % TAU - PI; -} -function _normalizeAngle(a) { - return (a % TAU + TAU) % TAU; -} -function _angleBetween(angle, start, end, sameAngleIsFullCircle) { - const a = _normalizeAngle(angle); - const s = _normalizeAngle(start); - const e = _normalizeAngle(end); - const angleToStart = _normalizeAngle(s - a); - const angleToEnd = _normalizeAngle(e - a); - const startToAngle = _normalizeAngle(a - s); - const endToAngle = _normalizeAngle(a - e); - return a === s || a === e || (sameAngleIsFullCircle && s === e) - || (angleToStart > angleToEnd && startToAngle < endToAngle); -} -function _limitValue(value, min, max) { - return Math.max(min, Math.min(max, value)); -} -function _int16Range(value) { - return _limitValue(value, -32768, 32767); -} -function _isBetween(value, start, end, epsilon = 1e-6) { - return value >= Math.min(start, end) - epsilon && value <= Math.max(start, end) + epsilon; -} - -function _isDomSupported() { - return typeof window !== 'undefined' && typeof document !== 'undefined'; -} -function _getParentNode(domNode) { - let parent = domNode.parentNode; - if (parent && parent.toString() === '[object ShadowRoot]') { - parent = parent.host; - } - return parent; -} -function parseMaxStyle(styleValue, node, parentProperty) { - let valueInPixels; - if (typeof styleValue === 'string') { - valueInPixels = parseInt(styleValue, 10); - if (styleValue.indexOf('%') !== -1) { - valueInPixels = valueInPixels / 100 * node.parentNode[parentProperty]; - } - } else { - valueInPixels = styleValue; - } - return valueInPixels; -} -const getComputedStyle = (element) => window.getComputedStyle(element, null); -function getStyle(el, property) { - return getComputedStyle(el).getPropertyValue(property); -} -const positions = ['top', 'right', 'bottom', 'left']; -function getPositionedStyle(styles, style, suffix) { - const result = {}; - suffix = suffix ? '-' + suffix : ''; - for (let i = 0; i < 4; i++) { - const pos = positions[i]; - result[pos] = parseFloat(styles[style + '-' + pos + suffix]) || 0; - } - result.width = result.left + result.right; - result.height = result.top + result.bottom; - return result; -} -const useOffsetPos = (x, y, target) => (x > 0 || y > 0) && (!target || !target.shadowRoot); -function getCanvasPosition(e, canvas) { - const touches = e.touches; - const source = touches && touches.length ? touches[0] : e; - const {offsetX, offsetY} = source; - let box = false; - let x, y; - if (useOffsetPos(offsetX, offsetY, e.target)) { - x = offsetX; - y = offsetY; - } else { - const rect = canvas.getBoundingClientRect(); - x = source.clientX - rect.left; - y = source.clientY - rect.top; - box = true; - } - return {x, y, box}; -} -function getRelativePosition(evt, chart) { - if ('native' in evt) { - return evt; - } - const {canvas, currentDevicePixelRatio} = chart; - const style = getComputedStyle(canvas); - const borderBox = style.boxSizing === 'border-box'; - const paddings = getPositionedStyle(style, 'padding'); - const borders = getPositionedStyle(style, 'border', 'width'); - const {x, y, box} = getCanvasPosition(evt, canvas); - const xOffset = paddings.left + (box && borders.left); - const yOffset = paddings.top + (box && borders.top); - let {width, height} = chart; - if (borderBox) { - width -= paddings.width + borders.width; - height -= paddings.height + borders.height; - } - return { - x: Math.round((x - xOffset) / width * canvas.width / currentDevicePixelRatio), - y: Math.round((y - yOffset) / height * canvas.height / currentDevicePixelRatio) - }; -} -function getContainerSize(canvas, width, height) { - let maxWidth, maxHeight; - if (width === undefined || height === undefined) { - const container = _getParentNode(canvas); - if (!container) { - width = canvas.clientWidth; - height = canvas.clientHeight; - } else { - const rect = container.getBoundingClientRect(); - const containerStyle = getComputedStyle(container); - const containerBorder = getPositionedStyle(containerStyle, 'border', 'width'); - const containerPadding = getPositionedStyle(containerStyle, 'padding'); - width = rect.width - containerPadding.width - containerBorder.width; - height = rect.height - containerPadding.height - containerBorder.height; - maxWidth = parseMaxStyle(containerStyle.maxWidth, container, 'clientWidth'); - maxHeight = parseMaxStyle(containerStyle.maxHeight, container, 'clientHeight'); - } - } - return { - width, - height, - maxWidth: maxWidth || INFINITY, - maxHeight: maxHeight || INFINITY - }; -} -const round1 = v => Math.round(v * 10) / 10; -function getMaximumSize(canvas, bbWidth, bbHeight, aspectRatio) { - const style = getComputedStyle(canvas); - const margins = getPositionedStyle(style, 'margin'); - const maxWidth = parseMaxStyle(style.maxWidth, canvas, 'clientWidth') || INFINITY; - const maxHeight = parseMaxStyle(style.maxHeight, canvas, 'clientHeight') || INFINITY; - const containerSize = getContainerSize(canvas, bbWidth, bbHeight); - let {width, height} = containerSize; - if (style.boxSizing === 'content-box') { - const borders = getPositionedStyle(style, 'border', 'width'); - const paddings = getPositionedStyle(style, 'padding'); - width -= paddings.width + borders.width; - height -= paddings.height + borders.height; - } - width = Math.max(0, width - margins.width); - height = Math.max(0, aspectRatio ? Math.floor(width / aspectRatio) : height - margins.height); - width = round1(Math.min(width, maxWidth, containerSize.maxWidth)); - height = round1(Math.min(height, maxHeight, containerSize.maxHeight)); - if (width && !height) { - height = round1(width / 2); - } - return { - width, - height - }; -} -function retinaScale(chart, forceRatio, forceStyle) { - const pixelRatio = forceRatio || 1; - const deviceHeight = Math.floor(chart.height * pixelRatio); - const deviceWidth = Math.floor(chart.width * pixelRatio); - chart.height = deviceHeight / pixelRatio; - chart.width = deviceWidth / pixelRatio; - const canvas = chart.canvas; - if (canvas.style && (forceStyle || (!canvas.style.height && !canvas.style.width))) { - canvas.style.height = `${chart.height}px`; - canvas.style.width = `${chart.width}px`; - } - if (chart.currentDevicePixelRatio !== pixelRatio - || canvas.height !== deviceHeight - || canvas.width !== deviceWidth) { - chart.currentDevicePixelRatio = pixelRatio; - canvas.height = deviceHeight; - canvas.width = deviceWidth; - chart.ctx.setTransform(pixelRatio, 0, 0, pixelRatio, 0, 0); - return true; - } - return false; -} -const supportsEventListenerOptions = (function() { - let passiveSupported = false; - try { - const options = { - get passive() { - passiveSupported = true; - return false; - } - }; - window.addEventListener('test', null, options); - window.removeEventListener('test', null, options); - } catch (e) { - } - return passiveSupported; -}()); -function readUsedSize(element, property) { - const value = getStyle(element, property); - const matches = value && value.match(/^(\d+)(\.\d+)?px$/); - return matches ? +matches[1] : undefined; -} - -function toFontString(font) { - if (!font || isNullOrUndef(font.size) || isNullOrUndef(font.family)) { - return null; - } - return (font.style ? font.style + ' ' : '') - + (font.weight ? font.weight + ' ' : '') - + font.size + 'px ' - + font.family; -} -function _measureText(ctx, data, gc, longest, string) { - let textWidth = data[string]; - if (!textWidth) { - textWidth = data[string] = ctx.measureText(string).width; - gc.push(string); - } - if (textWidth > longest) { - longest = textWidth; - } - return longest; -} -function _longestText(ctx, font, arrayOfThings, cache) { - cache = cache || {}; - let data = cache.data = cache.data || {}; - let gc = cache.garbageCollect = cache.garbageCollect || []; - if (cache.font !== font) { - data = cache.data = {}; - gc = cache.garbageCollect = []; - cache.font = font; - } - ctx.save(); - ctx.font = font; - let longest = 0; - const ilen = arrayOfThings.length; - let i, j, jlen, thing, nestedThing; - for (i = 0; i < ilen; i++) { - thing = arrayOfThings[i]; - if (thing !== undefined && thing !== null && isArray(thing) !== true) { - longest = _measureText(ctx, data, gc, longest, thing); - } else if (isArray(thing)) { - for (j = 0, jlen = thing.length; j < jlen; j++) { - nestedThing = thing[j]; - if (nestedThing !== undefined && nestedThing !== null && !isArray(nestedThing)) { - longest = _measureText(ctx, data, gc, longest, nestedThing); + defaults.set('transitions', { + active: { + animation: { + duration: 400 + } + }, + resize: { + animation: { + duration: 0 + } + }, + show: { + animations: { + colors: { + from: 'transparent' + }, + visible: { + type: 'boolean', + duration: 0 + } + } + }, + hide: { + animations: { + colors: { + to: 'transparent' + }, + visible: { + type: 'boolean', + easing: 'linear', + fn: (v)=>v | 0 + } + } } - } - } - } - ctx.restore(); - const gcLen = gc.length / 2; - if (gcLen > arrayOfThings.length) { - for (i = 0; i < gcLen; i++) { - delete data[gc[i]]; - } - gc.splice(0, gcLen); - } - return longest; -} -function _alignPixel(chart, pixel, width) { - const devicePixelRatio = chart.currentDevicePixelRatio; - const halfWidth = width !== 0 ? Math.max(width / 2, 0.5) : 0; - return Math.round((pixel - halfWidth) * devicePixelRatio) / devicePixelRatio + halfWidth; -} -function clearCanvas(canvas, ctx) { - ctx = ctx || canvas.getContext('2d'); - ctx.save(); - ctx.resetTransform(); - ctx.clearRect(0, 0, canvas.width, canvas.height); - ctx.restore(); -} -function drawPoint(ctx, options, x, y) { - let type, xOffset, yOffset, size, cornerRadius; - const style = options.pointStyle; - const rotation = options.rotation; - const radius = options.radius; - let rad = (rotation || 0) * RAD_PER_DEG; - if (style && typeof style === 'object') { - type = style.toString(); - if (type === '[object HTMLImageElement]' || type === '[object HTMLCanvasElement]') { - ctx.save(); - ctx.translate(x, y); - ctx.rotate(rad); - ctx.drawImage(style, -style.width / 2, -style.height / 2, style.width, style.height); - ctx.restore(); - return; - } - } - if (isNaN(radius) || radius <= 0) { - return; - } - ctx.beginPath(); - switch (style) { - default: - ctx.arc(x, y, radius, 0, TAU); - ctx.closePath(); - break; - case 'triangle': - ctx.moveTo(x + Math.sin(rad) * radius, y - Math.cos(rad) * radius); - rad += TWO_THIRDS_PI; - ctx.lineTo(x + Math.sin(rad) * radius, y - Math.cos(rad) * radius); - rad += TWO_THIRDS_PI; - ctx.lineTo(x + Math.sin(rad) * radius, y - Math.cos(rad) * radius); - ctx.closePath(); - break; - case 'rectRounded': - cornerRadius = radius * 0.516; - size = radius - cornerRadius; - xOffset = Math.cos(rad + QUARTER_PI) * size; - yOffset = Math.sin(rad + QUARTER_PI) * size; - ctx.arc(x - xOffset, y - yOffset, cornerRadius, rad - PI, rad - HALF_PI); - ctx.arc(x + yOffset, y - xOffset, cornerRadius, rad - HALF_PI, rad); - ctx.arc(x + xOffset, y + yOffset, cornerRadius, rad, rad + HALF_PI); - ctx.arc(x - yOffset, y + xOffset, cornerRadius, rad + HALF_PI, rad + PI); - ctx.closePath(); - break; - case 'rect': - if (!rotation) { - size = Math.SQRT1_2 * radius; - ctx.rect(x - size, y - size, 2 * size, 2 * size); - break; - } - rad += QUARTER_PI; - case 'rectRot': - xOffset = Math.cos(rad) * radius; - yOffset = Math.sin(rad) * radius; - ctx.moveTo(x - xOffset, y - yOffset); - ctx.lineTo(x + yOffset, y - xOffset); - ctx.lineTo(x + xOffset, y + yOffset); - ctx.lineTo(x - yOffset, y + xOffset); - ctx.closePath(); - break; - case 'crossRot': - rad += QUARTER_PI; - case 'cross': - xOffset = Math.cos(rad) * radius; - yOffset = Math.sin(rad) * radius; - ctx.moveTo(x - xOffset, y - yOffset); - ctx.lineTo(x + xOffset, y + yOffset); - ctx.moveTo(x + yOffset, y - xOffset); - ctx.lineTo(x - yOffset, y + xOffset); - break; - case 'star': - xOffset = Math.cos(rad) * radius; - yOffset = Math.sin(rad) * radius; - ctx.moveTo(x - xOffset, y - yOffset); - ctx.lineTo(x + xOffset, y + yOffset); - ctx.moveTo(x + yOffset, y - xOffset); - ctx.lineTo(x - yOffset, y + xOffset); - rad += QUARTER_PI; - xOffset = Math.cos(rad) * radius; - yOffset = Math.sin(rad) * radius; - ctx.moveTo(x - xOffset, y - yOffset); - ctx.lineTo(x + xOffset, y + yOffset); - ctx.moveTo(x + yOffset, y - xOffset); - ctx.lineTo(x - yOffset, y + xOffset); - break; - case 'line': - xOffset = Math.cos(rad) * radius; - yOffset = Math.sin(rad) * radius; - ctx.moveTo(x - xOffset, y - yOffset); - ctx.lineTo(x + xOffset, y + yOffset); - break; - case 'dash': - ctx.moveTo(x, y); - ctx.lineTo(x + Math.cos(rad) * radius, y + Math.sin(rad) * radius); - break; - } - ctx.fill(); - if (options.borderWidth > 0) { - ctx.stroke(); - } -} -function _isPointInArea(point, area, margin) { - margin = margin || 0.5; - return !area || (point && point.x > area.left - margin && point.x < area.right + margin && - point.y > area.top - margin && point.y < area.bottom + margin); -} -function clipArea(ctx, area) { - ctx.save(); - ctx.beginPath(); - ctx.rect(area.left, area.top, area.right - area.left, area.bottom - area.top); - ctx.clip(); -} -function unclipArea(ctx) { - ctx.restore(); -} -function _steppedLineTo(ctx, previous, target, flip, mode) { - if (!previous) { - return ctx.lineTo(target.x, target.y); - } - if (mode === 'middle') { - const midpoint = (previous.x + target.x) / 2.0; - ctx.lineTo(midpoint, previous.y); - ctx.lineTo(midpoint, target.y); - } else if (mode === 'after' !== !!flip) { - ctx.lineTo(previous.x, target.y); - } else { - ctx.lineTo(target.x, previous.y); - } - ctx.lineTo(target.x, target.y); -} -function _bezierCurveTo(ctx, previous, target, flip) { - if (!previous) { - return ctx.lineTo(target.x, target.y); - } - ctx.bezierCurveTo( - flip ? previous.cp1x : previous.cp2x, - flip ? previous.cp1y : previous.cp2y, - flip ? target.cp2x : target.cp1x, - flip ? target.cp2y : target.cp1y, - target.x, - target.y); -} -function renderText(ctx, text, x, y, font, opts = {}) { - const lines = isArray(text) ? text : [text]; - const stroke = opts.strokeWidth > 0 && opts.strokeColor !== ''; - let i, line; - ctx.save(); - ctx.font = font.string; - setRenderOpts(ctx, opts); - for (i = 0; i < lines.length; ++i) { - line = lines[i]; - if (stroke) { - if (opts.strokeColor) { - ctx.strokeStyle = opts.strokeColor; - } - if (!isNullOrUndef(opts.strokeWidth)) { - ctx.lineWidth = opts.strokeWidth; - } - ctx.strokeText(line, x, y, opts.maxWidth); - } - ctx.fillText(line, x, y, opts.maxWidth); - decorateText(ctx, x, y, line, opts); - y += font.lineHeight; - } - ctx.restore(); -} -function setRenderOpts(ctx, opts) { - if (opts.translation) { - ctx.translate(opts.translation[0], opts.translation[1]); - } - if (!isNullOrUndef(opts.rotation)) { - ctx.rotate(opts.rotation); - } - if (opts.color) { - ctx.fillStyle = opts.color; - } - if (opts.textAlign) { - ctx.textAlign = opts.textAlign; - } - if (opts.textBaseline) { - ctx.textBaseline = opts.textBaseline; - } -} -function decorateText(ctx, x, y, line, opts) { - if (opts.strikethrough || opts.underline) { - const metrics = ctx.measureText(line); - const left = x - metrics.actualBoundingBoxLeft; - const right = x + metrics.actualBoundingBoxRight; - const top = y - metrics.actualBoundingBoxAscent; - const bottom = y + metrics.actualBoundingBoxDescent; - const yDecoration = opts.strikethrough ? (top + bottom) / 2 : bottom; - ctx.strokeStyle = ctx.fillStyle; - ctx.beginPath(); - ctx.lineWidth = opts.decorationWidth || 2; - ctx.moveTo(left, yDecoration); - ctx.lineTo(right, yDecoration); - ctx.stroke(); - } -} -function addRoundedRectPath(ctx, rect) { - const {x, y, w, h, radius} = rect; - ctx.arc(x + radius.topLeft, y + radius.topLeft, radius.topLeft, -HALF_PI, PI, true); - ctx.lineTo(x, y + h - radius.bottomLeft); - ctx.arc(x + radius.bottomLeft, y + h - radius.bottomLeft, radius.bottomLeft, PI, HALF_PI, true); - ctx.lineTo(x + w - radius.bottomRight, y + h); - ctx.arc(x + w - radius.bottomRight, y + h - radius.bottomRight, radius.bottomRight, HALF_PI, 0, true); - ctx.lineTo(x + w, y + radius.topRight); - ctx.arc(x + w - radius.topRight, y + radius.topRight, radius.topRight, 0, -HALF_PI, true); - ctx.lineTo(x + radius.topLeft, y); + }); } -function _createResolver(scopes, prefixes = [''], rootScopes = scopes, fallback, getTarget = () => scopes[0]) { - if (!defined(fallback)) { - fallback = _resolve('_fallback', scopes); - } - const cache = { - [Symbol.toStringTag]: 'Object', - _cacheable: true, - _scopes: scopes, - _rootScopes: rootScopes, - _fallback: fallback, - _getTarget: getTarget, - override: (scope) => _createResolver([scope, ...scopes], prefixes, rootScopes, fallback), - }; - return new Proxy(cache, { - deleteProperty(target, prop) { - delete target[prop]; - delete target._keys; - delete scopes[0][prop]; - return true; - }, - get(target, prop) { - return _cached(target, prop, - () => _resolveWithPrefixes(prop, prefixes, scopes, target)); - }, - getOwnPropertyDescriptor(target, prop) { - return Reflect.getOwnPropertyDescriptor(target._scopes[0], prop); - }, - getPrototypeOf() { - return Reflect.getPrototypeOf(scopes[0]); - }, - has(target, prop) { - return getKeysFromAllScopes(target).includes(prop); - }, - ownKeys(target) { - return getKeysFromAllScopes(target); - }, - set(target, prop, value) { - const storage = target._storage || (target._storage = getTarget()); - target[prop] = storage[prop] = value; - delete target._keys; - return true; - } - }); -} -function _attachContext(proxy, context, subProxy, descriptorDefaults) { - const cache = { - _cacheable: false, - _proxy: proxy, - _context: context, - _subProxy: subProxy, - _stack: new Set(), - _descriptors: _descriptors(proxy, descriptorDefaults), - setContext: (ctx) => _attachContext(proxy, ctx, subProxy, descriptorDefaults), - override: (scope) => _attachContext(proxy.override(scope), context, subProxy, descriptorDefaults) - }; - return new Proxy(cache, { - deleteProperty(target, prop) { - delete target[prop]; - delete proxy[prop]; - return true; - }, - get(target, prop, receiver) { - return _cached(target, prop, - () => _resolveWithContext(target, prop, receiver)); - }, - getOwnPropertyDescriptor(target, prop) { - return target._descriptors.allKeys - ? Reflect.has(proxy, prop) ? {enumerable: true, configurable: true} : undefined - : Reflect.getOwnPropertyDescriptor(proxy, prop); - }, - getPrototypeOf() { - return Reflect.getPrototypeOf(proxy); - }, - has(target, prop) { - return Reflect.has(proxy, prop); - }, - ownKeys() { - return Reflect.ownKeys(proxy); - }, - set(target, prop, value) { - proxy[prop] = value; - delete target[prop]; - return true; - } - }); -} -function _descriptors(proxy, defaults = {scriptable: true, indexable: true}) { - const {_scriptable = defaults.scriptable, _indexable = defaults.indexable, _allKeys = defaults.allKeys} = proxy; - return { - allKeys: _allKeys, - scriptable: _scriptable, - indexable: _indexable, - isScriptable: isFunction(_scriptable) ? _scriptable : () => _scriptable, - isIndexable: isFunction(_indexable) ? _indexable : () => _indexable - }; -} -const readKey = (prefix, name) => prefix ? prefix + _capitalize(name) : name; -const needsSubResolver = (prop, value) => isObject(value) && prop !== 'adapters' && - (Object.getPrototypeOf(value) === null || value.constructor === Object); -function _cached(target, prop, resolve) { - if (Object.prototype.hasOwnProperty.call(target, prop)) { - return target[prop]; - } - const value = resolve(); - target[prop] = value; - return value; -} -function _resolveWithContext(target, prop, receiver) { - const {_proxy, _context, _subProxy, _descriptors: descriptors} = target; - let value = _proxy[prop]; - if (isFunction(value) && descriptors.isScriptable(prop)) { - value = _resolveScriptable(prop, value, target, receiver); - } - if (isArray(value) && value.length) { - value = _resolveArray(prop, value, target, descriptors.isIndexable); - } - if (needsSubResolver(prop, value)) { - value = _attachContext(value, _context, _subProxy && _subProxy[prop], descriptors); - } - return value; -} -function _resolveScriptable(prop, value, target, receiver) { - const {_proxy, _context, _subProxy, _stack} = target; - if (_stack.has(prop)) { - throw new Error('Recursion detected: ' + Array.from(_stack).join('->') + '->' + prop); - } - _stack.add(prop); - value = value(_context, _subProxy || receiver); - _stack.delete(prop); - if (needsSubResolver(prop, value)) { - value = createSubResolver(_proxy._scopes, _proxy, prop, value); - } - return value; -} -function _resolveArray(prop, value, target, isIndexable) { - const {_proxy, _context, _subProxy, _descriptors: descriptors} = target; - if (defined(_context.index) && isIndexable(prop)) { - value = value[_context.index % value.length]; - } else if (isObject(value[0])) { - const arr = value; - const scopes = _proxy._scopes.filter(s => s !== arr); - value = []; - for (const item of arr) { - const resolver = createSubResolver(scopes, _proxy, prop, item); - value.push(_attachContext(resolver, _context, _subProxy && _subProxy[prop], descriptors)); - } - } - return value; -} -function resolveFallback(fallback, prop, value) { - return isFunction(fallback) ? fallback(prop, value) : fallback; -} -const getScope = (key, parent) => key === true ? parent - : typeof key === 'string' ? resolveObjectKey(parent, key) : undefined; -function addScopes(set, parentScopes, key, parentFallback, value) { - for (const parent of parentScopes) { - const scope = getScope(key, parent); - if (scope) { - set.add(scope); - const fallback = resolveFallback(scope._fallback, key, value); - if (defined(fallback) && fallback !== key && fallback !== parentFallback) { - return fallback; - } - } else if (scope === false && defined(parentFallback) && key !== parentFallback) { - return null; - } - } - return false; -} -function createSubResolver(parentScopes, resolver, prop, value) { - const rootScopes = resolver._rootScopes; - const fallback = resolveFallback(resolver._fallback, prop, value); - const allScopes = [...parentScopes, ...rootScopes]; - const set = new Set(); - set.add(value); - let key = addScopesFromKey(set, allScopes, prop, fallback || prop, value); - if (key === null) { - return false; - } - if (defined(fallback) && fallback !== prop) { - key = addScopesFromKey(set, allScopes, fallback, key, value); - if (key === null) { - return false; - } - } - return _createResolver(Array.from(set), [''], rootScopes, fallback, - () => subGetTarget(resolver, prop, value)); -} -function addScopesFromKey(set, allScopes, key, fallback, item) { - while (key) { - key = addScopes(set, allScopes, key, fallback, item); - } - return key; -} -function subGetTarget(resolver, prop, value) { - const parent = resolver._getTarget(); - if (!(prop in parent)) { - parent[prop] = {}; - } - const target = parent[prop]; - if (isArray(target) && isObject(value)) { - return value; - } - return target; -} -function _resolveWithPrefixes(prop, prefixes, scopes, proxy) { - let value; - for (const prefix of prefixes) { - value = _resolve(readKey(prefix, prop), scopes); - if (defined(value)) { - return needsSubResolver(prop, value) - ? createSubResolver(scopes, proxy, prop, value) - : value; - } - } -} -function _resolve(key, scopes) { - for (const scope of scopes) { - if (!scope) { - continue; - } - const value = scope[key]; - if (defined(value)) { - return value; - } - } -} -function getKeysFromAllScopes(target) { - let keys = target._keys; - if (!keys) { - keys = target._keys = resolveKeysFromAllScopes(target._scopes); - } - return keys; -} -function resolveKeysFromAllScopes(scopes) { - const set = new Set(); - for (const scope of scopes) { - for (const key of Object.keys(scope).filter(k => !k.startsWith('_'))) { - set.add(key); - } - } - return Array.from(set); -} -function _parseObjectDataRadialScale(meta, data, start, count) { - const {iScale} = meta; - const {key = 'r'} = this._parsing; - const parsed = new Array(count); - let i, ilen, index, item; - for (i = 0, ilen = count; i < ilen; ++i) { - index = i + start; - item = data[index]; - parsed[i] = { - r: iScale.parse(resolveObjectKey(item, key), index) - }; - } - return parsed; -} - -const EPSILON = Number.EPSILON || 1e-14; -const getPoint = (points, i) => i < points.length && !points[i].skip && points[i]; -const getValueAxis = (indexAxis) => indexAxis === 'x' ? 'y' : 'x'; -function splineCurve(firstPoint, middlePoint, afterPoint, t) { - const previous = firstPoint.skip ? middlePoint : firstPoint; - const current = middlePoint; - const next = afterPoint.skip ? middlePoint : afterPoint; - const d01 = distanceBetweenPoints(current, previous); - const d12 = distanceBetweenPoints(next, current); - let s01 = d01 / (d01 + d12); - let s12 = d12 / (d01 + d12); - s01 = isNaN(s01) ? 0 : s01; - s12 = isNaN(s12) ? 0 : s12; - const fa = t * s01; - const fb = t * s12; - return { - previous: { - x: current.x - fa * (next.x - previous.x), - y: current.y - fa * (next.y - previous.y) - }, - next: { - x: current.x + fb * (next.x - previous.x), - y: current.y + fb * (next.y - previous.y) - } - }; -} -function monotoneAdjust(points, deltaK, mK) { - const pointsLen = points.length; - let alphaK, betaK, tauK, squaredMagnitude, pointCurrent; - let pointAfter = getPoint(points, 0); - for (let i = 0; i < pointsLen - 1; ++i) { - pointCurrent = pointAfter; - pointAfter = getPoint(points, i + 1); - if (!pointCurrent || !pointAfter) { - continue; - } - if (almostEquals(deltaK[i], 0, EPSILON)) { - mK[i] = mK[i + 1] = 0; - continue; - } - alphaK = mK[i] / deltaK[i]; - betaK = mK[i + 1] / deltaK[i]; - squaredMagnitude = Math.pow(alphaK, 2) + Math.pow(betaK, 2); - if (squaredMagnitude <= 9) { - continue; - } - tauK = 3 / Math.sqrt(squaredMagnitude); - mK[i] = alphaK * tauK * deltaK[i]; - mK[i + 1] = betaK * tauK * deltaK[i]; - } -} -function monotoneCompute(points, mK, indexAxis = 'x') { - const valueAxis = getValueAxis(indexAxis); - const pointsLen = points.length; - let delta, pointBefore, pointCurrent; - let pointAfter = getPoint(points, 0); - for (let i = 0; i < pointsLen; ++i) { - pointBefore = pointCurrent; - pointCurrent = pointAfter; - pointAfter = getPoint(points, i + 1); - if (!pointCurrent) { - continue; - } - const iPixel = pointCurrent[indexAxis]; - const vPixel = pointCurrent[valueAxis]; - if (pointBefore) { - delta = (iPixel - pointBefore[indexAxis]) / 3; - pointCurrent[`cp1${indexAxis}`] = iPixel - delta; - pointCurrent[`cp1${valueAxis}`] = vPixel - delta * mK[i]; - } - if (pointAfter) { - delta = (pointAfter[indexAxis] - iPixel) / 3; - pointCurrent[`cp2${indexAxis}`] = iPixel + delta; - pointCurrent[`cp2${valueAxis}`] = vPixel + delta * mK[i]; - } - } -} -function splineCurveMonotone(points, indexAxis = 'x') { - const valueAxis = getValueAxis(indexAxis); - const pointsLen = points.length; - const deltaK = Array(pointsLen).fill(0); - const mK = Array(pointsLen); - let i, pointBefore, pointCurrent; - let pointAfter = getPoint(points, 0); - for (i = 0; i < pointsLen; ++i) { - pointBefore = pointCurrent; - pointCurrent = pointAfter; - pointAfter = getPoint(points, i + 1); - if (!pointCurrent) { - continue; - } - if (pointAfter) { - const slopeDelta = pointAfter[indexAxis] - pointCurrent[indexAxis]; - deltaK[i] = slopeDelta !== 0 ? (pointAfter[valueAxis] - pointCurrent[valueAxis]) / slopeDelta : 0; - } - mK[i] = !pointBefore ? deltaK[i] - : !pointAfter ? deltaK[i - 1] - : (sign(deltaK[i - 1]) !== sign(deltaK[i])) ? 0 - : (deltaK[i - 1] + deltaK[i]) / 2; - } - monotoneAdjust(points, deltaK, mK); - monotoneCompute(points, mK, indexAxis); -} -function capControlPoint(pt, min, max) { - return Math.max(Math.min(pt, max), min); -} -function capBezierPoints(points, area) { - let i, ilen, point, inArea, inAreaPrev; - let inAreaNext = _isPointInArea(points[0], area); - for (i = 0, ilen = points.length; i < ilen; ++i) { - inAreaPrev = inArea; - inArea = inAreaNext; - inAreaNext = i < ilen - 1 && _isPointInArea(points[i + 1], area); - if (!inArea) { - continue; - } - point = points[i]; - if (inAreaPrev) { - point.cp1x = capControlPoint(point.cp1x, area.left, area.right); - point.cp1y = capControlPoint(point.cp1y, area.top, area.bottom); - } - if (inAreaNext) { - point.cp2x = capControlPoint(point.cp2x, area.left, area.right); - point.cp2y = capControlPoint(point.cp2y, area.top, area.bottom); - } - } -} -function _updateBezierControlPoints(points, options, area, loop, indexAxis) { - let i, ilen, point, controlPoints; - if (options.spanGaps) { - points = points.filter((pt) => !pt.skip); - } - if (options.cubicInterpolationMode === 'monotone') { - splineCurveMonotone(points, indexAxis); - } else { - let prev = loop ? points[points.length - 1] : points[0]; - for (i = 0, ilen = points.length; i < ilen; ++i) { - point = points[i]; - controlPoints = splineCurve( - prev, - point, - points[Math.min(i + 1, ilen - (loop ? 0 : 1)) % ilen], - options.tension - ); - point.cp1x = controlPoints.previous.x; - point.cp1y = controlPoints.previous.y; - point.cp2x = controlPoints.next.x; - point.cp2y = controlPoints.next.y; - prev = point; - } - } - if (options.capBezierPoints) { - capBezierPoints(points, area); - } -} - -const atEdge = (t) => t === 0 || t === 1; -const elasticIn = (t, s, p) => -(Math.pow(2, 10 * (t -= 1)) * Math.sin((t - s) * TAU / p)); -const elasticOut = (t, s, p) => Math.pow(2, -10 * t) * Math.sin((t - s) * TAU / p) + 1; -const effects = { - linear: t => t, - easeInQuad: t => t * t, - easeOutQuad: t => -t * (t - 2), - easeInOutQuad: t => ((t /= 0.5) < 1) - ? 0.5 * t * t - : -0.5 * ((--t) * (t - 2) - 1), - easeInCubic: t => t * t * t, - easeOutCubic: t => (t -= 1) * t * t + 1, - easeInOutCubic: t => ((t /= 0.5) < 1) - ? 0.5 * t * t * t - : 0.5 * ((t -= 2) * t * t + 2), - easeInQuart: t => t * t * t * t, - easeOutQuart: t => -((t -= 1) * t * t * t - 1), - easeInOutQuart: t => ((t /= 0.5) < 1) - ? 0.5 * t * t * t * t - : -0.5 * ((t -= 2) * t * t * t - 2), - easeInQuint: t => t * t * t * t * t, - easeOutQuint: t => (t -= 1) * t * t * t * t + 1, - easeInOutQuint: t => ((t /= 0.5) < 1) - ? 0.5 * t * t * t * t * t - : 0.5 * ((t -= 2) * t * t * t * t + 2), - easeInSine: t => -Math.cos(t * HALF_PI) + 1, - easeOutSine: t => Math.sin(t * HALF_PI), - easeInOutSine: t => -0.5 * (Math.cos(PI * t) - 1), - easeInExpo: t => (t === 0) ? 0 : Math.pow(2, 10 * (t - 1)), - easeOutExpo: t => (t === 1) ? 1 : -Math.pow(2, -10 * t) + 1, - easeInOutExpo: t => atEdge(t) ? t : t < 0.5 - ? 0.5 * Math.pow(2, 10 * (t * 2 - 1)) - : 0.5 * (-Math.pow(2, -10 * (t * 2 - 1)) + 2), - easeInCirc: t => (t >= 1) ? t : -(Math.sqrt(1 - t * t) - 1), - easeOutCirc: t => Math.sqrt(1 - (t -= 1) * t), - easeInOutCirc: t => ((t /= 0.5) < 1) - ? -0.5 * (Math.sqrt(1 - t * t) - 1) - : 0.5 * (Math.sqrt(1 - (t -= 2) * t) + 1), - easeInElastic: t => atEdge(t) ? t : elasticIn(t, 0.075, 0.3), - easeOutElastic: t => atEdge(t) ? t : elasticOut(t, 0.075, 0.3), - easeInOutElastic(t) { - const s = 0.1125; - const p = 0.45; - return atEdge(t) ? t : - t < 0.5 - ? 0.5 * elasticIn(t * 2, s, p) - : 0.5 + 0.5 * elasticOut(t * 2 - 1, s, p); - }, - easeInBack(t) { - const s = 1.70158; - return t * t * ((s + 1) * t - s); - }, - easeOutBack(t) { - const s = 1.70158; - return (t -= 1) * t * ((s + 1) * t + s) + 1; - }, - easeInOutBack(t) { - let s = 1.70158; - if ((t /= 0.5) < 1) { - return 0.5 * (t * t * (((s *= (1.525)) + 1) * t - s)); - } - return 0.5 * ((t -= 2) * t * (((s *= (1.525)) + 1) * t + s) + 2); - }, - easeInBounce: t => 1 - effects.easeOutBounce(1 - t), - easeOutBounce(t) { - const m = 7.5625; - const d = 2.75; - if (t < (1 / d)) { - return m * t * t; - } - if (t < (2 / d)) { - return m * (t -= (1.5 / d)) * t + 0.75; - } - if (t < (2.5 / d)) { - return m * (t -= (2.25 / d)) * t + 0.9375; - } - return m * (t -= (2.625 / d)) * t + 0.984375; - }, - easeInOutBounce: t => (t < 0.5) - ? effects.easeInBounce(t * 2) * 0.5 - : effects.easeOutBounce(t * 2 - 1) * 0.5 + 0.5, -}; - -function _pointInLine(p1, p2, t, mode) { - return { - x: p1.x + t * (p2.x - p1.x), - y: p1.y + t * (p2.y - p1.y) - }; -} -function _steppedInterpolation(p1, p2, t, mode) { - return { - x: p1.x + t * (p2.x - p1.x), - y: mode === 'middle' ? t < 0.5 ? p1.y : p2.y - : mode === 'after' ? t < 1 ? p1.y : p2.y - : t > 0 ? p2.y : p1.y - }; -} -function _bezierInterpolation(p1, p2, t, mode) { - const cp1 = {x: p1.cp2x, y: p1.cp2y}; - const cp2 = {x: p2.cp1x, y: p2.cp1y}; - const a = _pointInLine(p1, cp1, t); - const b = _pointInLine(cp1, cp2, t); - const c = _pointInLine(cp2, p2, t); - const d = _pointInLine(a, b, t); - const e = _pointInLine(b, c, t); - return _pointInLine(d, e, t); +function applyLayoutsDefaults(defaults) { + defaults.set('layout', { + autoPadding: true, + padding: { + top: 0, + right: 0, + bottom: 0, + left: 0 + } + }); } const intlCache = new Map(); function getNumberFormat(locale, options) { - options = options || {}; - const cacheKey = locale + JSON.stringify(options); - let formatter = intlCache.get(cacheKey); - if (!formatter) { - formatter = new Intl.NumberFormat(locale, options); - intlCache.set(cacheKey, formatter); - } - return formatter; + options = options || {}; + const cacheKey = locale + JSON.stringify(options); + let formatter = intlCache.get(cacheKey); + if (!formatter) { + formatter = new Intl.NumberFormat(locale, options); + intlCache.set(cacheKey, formatter); + } + return formatter; } function formatNumber(num, locale, options) { - return getNumberFormat(locale, options).format(num); + return getNumberFormat(locale, options).format(num); } -const LINE_HEIGHT = new RegExp(/^(normal|(\d+(?:\.\d+)?)(px|em|%)?)$/); -const FONT_STYLE = new RegExp(/^(normal|italic|initial|inherit|unset|(oblique( -?[0-9]?[0-9]deg)?))$/); -function toLineHeight(value, size) { - const matches = ('' + value).match(LINE_HEIGHT); - if (!matches || matches[1] === 'normal') { - return size * 1.2; - } - value = +matches[2]; - switch (matches[3]) { - case 'px': +const formatters = { + values (value) { + return isArray(value) ? value : '' + value; + }, + numeric (tickValue, index, ticks) { + if (tickValue === 0) { + return '0'; + } + const locale = this.chart.options.locale; + let notation; + let delta = tickValue; + if (ticks.length > 1) { + const maxTick = Math.max(Math.abs(ticks[0].value), Math.abs(ticks[ticks.length - 1].value)); + if (maxTick < 1e-4 || maxTick > 1e+15) { + notation = 'scientific'; + } + delta = calculateDelta(tickValue, ticks); + } + const logDelta = log10(Math.abs(delta)); + const numDecimal = Math.max(Math.min(-1 * Math.floor(logDelta), 20), 0); + const options = { + notation, + minimumFractionDigits: numDecimal, + maximumFractionDigits: numDecimal + }; + Object.assign(options, this.options.ticks.format); + return formatNumber(tickValue, locale, options); + }, + logarithmic (tickValue, index, ticks) { + if (tickValue === 0) { + return '0'; + } + const remain = ticks[index].significand || tickValue / Math.pow(10, Math.floor(log10(tickValue))); + if ([ + 1, + 2, + 3, + 5, + 10, + 15 + ].includes(remain) || index > 0.8 * ticks.length) { + return formatters.numeric.call(this, tickValue, index, ticks); + } + return ''; + } +}; +function calculateDelta(tickValue, ticks) { + let delta = ticks.length > 3 ? ticks[2].value - ticks[1].value : ticks[1].value - ticks[0].value; + if (Math.abs(delta) >= 1 && tickValue !== Math.floor(tickValue)) { + delta = tickValue - Math.floor(tickValue); + } + return delta; +} + var Ticks = { + formatters +}; + +function applyScaleDefaults(defaults) { + defaults.set('scale', { + display: true, + offset: false, + reverse: false, + beginAtZero: false, + bounds: 'ticks', + grace: 0, + grid: { + display: true, + lineWidth: 1, + drawOnChartArea: true, + drawTicks: true, + tickLength: 8, + tickWidth: (_ctx, options)=>options.lineWidth, + tickColor: (_ctx, options)=>options.color, + offset: false + }, + border: { + display: true, + dash: [], + dashOffset: 0.0, + width: 1 + }, + title: { + display: false, + text: '', + padding: { + top: 4, + bottom: 4 + } + }, + ticks: { + minRotation: 0, + maxRotation: 50, + mirror: false, + textStrokeWidth: 0, + textStrokeColor: '', + padding: 3, + display: true, + autoSkip: true, + autoSkipPadding: 3, + labelOffset: 0, + callback: Ticks.formatters.values, + minor: {}, + major: {}, + align: 'center', + crossAlign: 'near', + showLabelBackdrop: false, + backdropColor: 'rgba(255, 255, 255, 0.75)', + backdropPadding: 2 + } + }); + defaults.route('scale.ticks', 'color', '', 'color'); + defaults.route('scale.grid', 'color', '', 'borderColor'); + defaults.route('scale.border', 'color', '', 'borderColor'); + defaults.route('scale.title', 'color', '', 'color'); + defaults.describe('scale', { + _fallback: false, + _scriptable: (name)=>!name.startsWith('before') && !name.startsWith('after') && name !== 'callback' && name !== 'parser', + _indexable: (name)=>name !== 'borderDash' && name !== 'tickBorderDash' && name !== 'dash' + }); + defaults.describe('scales', { + _fallback: 'scale' + }); + defaults.describe('scale.ticks', { + _scriptable: (name)=>name !== 'backdropPadding' && name !== 'callback', + _indexable: (name)=>name !== 'backdropPadding' + }); +} + +const overrides = Object.create(null); +const descriptors = Object.create(null); + function getScope$1(node, key) { + if (!key) { + return node; + } + const keys = key.split('.'); + for(let i = 0, n = keys.length; i < n; ++i){ + const k = keys[i]; + node = node[k] || (node[k] = Object.create(null)); + } + return node; +} +function set(root, scope, values) { + if (typeof scope === 'string') { + return merge(getScope$1(root, scope), values); + } + return merge(getScope$1(root, ''), scope); +} + class Defaults { + constructor(_descriptors, _appliers){ + this.animation = undefined; + this.backgroundColor = 'rgba(0,0,0,0.1)'; + this.borderColor = 'rgba(0,0,0,0.1)'; + this.color = '#666'; + this.datasets = {}; + this.devicePixelRatio = (context)=>context.chart.platform.getDevicePixelRatio(); + this.elements = {}; + this.events = [ + 'mousemove', + 'mouseout', + 'click', + 'touchstart', + 'touchmove' + ]; + this.font = { + family: "'Helvetica Neue', 'Helvetica', 'Arial', sans-serif", + size: 12, + style: 'normal', + lineHeight: 1.2, + weight: null + }; + this.hover = {}; + this.hoverBackgroundColor = (ctx, options)=>getHoverColor(options.backgroundColor); + this.hoverBorderColor = (ctx, options)=>getHoverColor(options.borderColor); + this.hoverColor = (ctx, options)=>getHoverColor(options.color); + this.indexAxis = 'x'; + this.interaction = { + mode: 'nearest', + intersect: true, + includeInvisible: false + }; + this.maintainAspectRatio = true; + this.onHover = null; + this.onClick = null; + this.parsing = true; + this.plugins = {}; + this.responsive = true; + this.scale = undefined; + this.scales = {}; + this.showLine = true; + this.drawActiveElementsOnTop = true; + this.describe(_descriptors); + this.apply(_appliers); + } + set(scope, values) { + return set(this, scope, values); + } + get(scope) { + return getScope$1(this, scope); + } + describe(scope, values) { + return set(descriptors, scope, values); + } + override(scope, values) { + return set(overrides, scope, values); + } + route(scope, name, targetScope, targetName) { + const scopeObject = getScope$1(this, scope); + const targetScopeObject = getScope$1(this, targetScope); + const privateName = '_' + name; + Object.defineProperties(scopeObject, { + [privateName]: { + value: scopeObject[name], + writable: true + }, + [name]: { + enumerable: true, + get () { + const local = this[privateName]; + const target = targetScopeObject[targetName]; + if (isObject(local)) { + return Object.assign({}, target, local); + } + return valueOrDefault(local, target); + }, + set (value) { + this[privateName] = value; + } + } + }); + } + apply(appliers) { + appliers.forEach((apply)=>apply(this)); + } +} +var defaults = /* #__PURE__ */ new Defaults({ + _scriptable: (name)=>!name.startsWith('on'), + _indexable: (name)=>name !== 'events', + hover: { + _fallback: 'interaction' + }, + interaction: { + _scriptable: false, + _indexable: false + } +}, [ + applyAnimationsDefaults, + applyLayoutsDefaults, + applyScaleDefaults +]); + +/** + * Note: typedefs are auto-exported, so use a made-up `dom` namespace where + * necessary to avoid duplicates with `export * from './helpers`; see + * https://github.com/microsoft/TypeScript/issues/46011 + * @typedef { import('../core/core.controller.js').default } dom.Chart + * @typedef { import('../../types').ChartEvent } ChartEvent + */ /** + * @private + */ function _isDomSupported() { + return typeof window !== 'undefined' && typeof document !== 'undefined'; +} +/** + * @private + */ function _getParentNode(domNode) { + let parent = domNode.parentNode; + if (parent && parent.toString() === '[object ShadowRoot]') { + parent = parent.host; + } + return parent; +} +/** + * convert max-width/max-height values that may be percentages into a number + * @private + */ function parseMaxStyle(styleValue, node, parentProperty) { + let valueInPixels; + if (typeof styleValue === 'string') { + valueInPixels = parseInt(styleValue, 10); + if (styleValue.indexOf('%') !== -1) { + // percentage * size in dimension + valueInPixels = valueInPixels / 100 * node.parentNode[parentProperty]; + } + } else { + valueInPixels = styleValue; + } + return valueInPixels; +} +const getComputedStyle = (element)=>element.ownerDocument.defaultView.getComputedStyle(element, null); +function getStyle(el, property) { + return getComputedStyle(el).getPropertyValue(property); +} +const positions = [ + 'top', + 'right', + 'bottom', + 'left' +]; +function getPositionedStyle(styles, style, suffix) { + const result = {}; + suffix = suffix ? '-' + suffix : ''; + for(let i = 0; i < 4; i++){ + const pos = positions[i]; + result[pos] = parseFloat(styles[style + '-' + pos + suffix]) || 0; + } + result.width = result.left + result.right; + result.height = result.top + result.bottom; + return result; +} +const useOffsetPos = (x, y, target)=>(x > 0 || y > 0) && (!target || !target.shadowRoot); +/** + * @param e + * @param canvas + * @returns Canvas position + */ function getCanvasPosition(e, canvas) { + const touches = e.touches; + const source = touches && touches.length ? touches[0] : e; + const { offsetX , offsetY } = source; + let box = false; + let x, y; + if (useOffsetPos(offsetX, offsetY, e.target)) { + x = offsetX; + y = offsetY; + } else { + const rect = canvas.getBoundingClientRect(); + x = source.clientX - rect.left; + y = source.clientY - rect.top; + box = true; + } + return { + x, + y, + box + }; +} +/** + * Gets an event's x, y coordinates, relative to the chart area + * @param event + * @param chart + * @returns x and y coordinates of the event + */ function getRelativePosition(event, chart) { + if ('native' in event) { + return event; + } + const { canvas , currentDevicePixelRatio } = chart; + const style = getComputedStyle(canvas); + const borderBox = style.boxSizing === 'border-box'; + const paddings = getPositionedStyle(style, 'padding'); + const borders = getPositionedStyle(style, 'border', 'width'); + const { x , y , box } = getCanvasPosition(event, canvas); + const xOffset = paddings.left + (box && borders.left); + const yOffset = paddings.top + (box && borders.top); + let { width , height } = chart; + if (borderBox) { + width -= paddings.width + borders.width; + height -= paddings.height + borders.height; + } + return { + x: Math.round((x - xOffset) / width * canvas.width / currentDevicePixelRatio), + y: Math.round((y - yOffset) / height * canvas.height / currentDevicePixelRatio) + }; +} +function getContainerSize(canvas, width, height) { + let maxWidth, maxHeight; + if (width === undefined || height === undefined) { + const container = _getParentNode(canvas); + if (!container) { + width = canvas.clientWidth; + height = canvas.clientHeight; + } else { + const rect = container.getBoundingClientRect(); // this is the border box of the container + const containerStyle = getComputedStyle(container); + const containerBorder = getPositionedStyle(containerStyle, 'border', 'width'); + const containerPadding = getPositionedStyle(containerStyle, 'padding'); + width = rect.width - containerPadding.width - containerBorder.width; + height = rect.height - containerPadding.height - containerBorder.height; + maxWidth = parseMaxStyle(containerStyle.maxWidth, container, 'clientWidth'); + maxHeight = parseMaxStyle(containerStyle.maxHeight, container, 'clientHeight'); + } + } + return { + width, + height, + maxWidth: maxWidth || INFINITY, + maxHeight: maxHeight || INFINITY + }; +} +const round1 = (v)=>Math.round(v * 10) / 10; +// eslint-disable-next-line complexity +function getMaximumSize(canvas, bbWidth, bbHeight, aspectRatio) { + const style = getComputedStyle(canvas); + const margins = getPositionedStyle(style, 'margin'); + const maxWidth = parseMaxStyle(style.maxWidth, canvas, 'clientWidth') || INFINITY; + const maxHeight = parseMaxStyle(style.maxHeight, canvas, 'clientHeight') || INFINITY; + const containerSize = getContainerSize(canvas, bbWidth, bbHeight); + let { width , height } = containerSize; + if (style.boxSizing === 'content-box') { + const borders = getPositionedStyle(style, 'border', 'width'); + const paddings = getPositionedStyle(style, 'padding'); + width -= paddings.width + borders.width; + height -= paddings.height + borders.height; + } + width = Math.max(0, width - margins.width); + height = Math.max(0, aspectRatio ? width / aspectRatio : height - margins.height); + width = round1(Math.min(width, maxWidth, containerSize.maxWidth)); + height = round1(Math.min(height, maxHeight, containerSize.maxHeight)); + if (width && !height) { + // https://github.com/chartjs/Chart.js/issues/4659 + // If the canvas has width, but no height, default to aspectRatio of 2 (canvas default) + height = round1(width / 2); + } + const maintainHeight = bbWidth !== undefined || bbHeight !== undefined; + if (maintainHeight && aspectRatio && containerSize.height && height > containerSize.height) { + height = containerSize.height; + width = round1(Math.floor(height * aspectRatio)); + } + return { + width, + height + }; +} +/** + * @param chart + * @param forceRatio + * @param forceStyle + * @returns True if the canvas context size or transformation has changed. + */ function retinaScale(chart, forceRatio, forceStyle) { + const pixelRatio = forceRatio || 1; + const deviceHeight = Math.floor(chart.height * pixelRatio); + const deviceWidth = Math.floor(chart.width * pixelRatio); + chart.height = Math.floor(chart.height); + chart.width = Math.floor(chart.width); + const canvas = chart.canvas; + // If no style has been set on the canvas, the render size is used as display size, + // making the chart visually bigger, so let's enforce it to the "correct" values. + // See https://github.com/chartjs/Chart.js/issues/3575 + if (canvas.style && (forceStyle || !canvas.style.height && !canvas.style.width)) { + canvas.style.height = `${chart.height}px`; + canvas.style.width = `${chart.width}px`; + } + if (chart.currentDevicePixelRatio !== pixelRatio || canvas.height !== deviceHeight || canvas.width !== deviceWidth) { + chart.currentDevicePixelRatio = pixelRatio; + canvas.height = deviceHeight; + canvas.width = deviceWidth; + chart.ctx.setTransform(pixelRatio, 0, 0, pixelRatio, 0, 0); + return true; + } + return false; +} +/** + * Detects support for options object argument in addEventListener. + * https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener#Safely_detecting_option_support + * @private + */ const supportsEventListenerOptions = function() { + let passiveSupported = false; + try { + const options = { + get passive () { + passiveSupported = true; + return false; + } + }; + window.addEventListener('test', null, options); + window.removeEventListener('test', null, options); + } catch (e) { + // continue regardless of error + } + return passiveSupported; +}(); +/** + * The "used" size is the final value of a dimension property after all calculations have + * been performed. This method uses the computed style of `element` but returns undefined + * if the computed style is not expressed in pixels. That can happen in some cases where + * `element` has a size relative to its parent and this last one is not yet displayed, + * for example because of `display: none` on a parent node. + * @see https://developer.mozilla.org/en-US/docs/Web/CSS/used_value + * @returns Size in pixels or undefined if unknown. + */ function readUsedSize(element, property) { + const value = getStyle(element, property); + const matches = value && value.match(/^(\d+)(\.\d+)?px$/); + return matches ? +matches[1] : undefined; +} + +function toFontString(font) { + if (!font || isNullOrUndef(font.size) || isNullOrUndef(font.family)) { + return null; + } + return (font.style ? font.style + ' ' : '') + (font.weight ? font.weight + ' ' : '') + font.size + 'px ' + font.family; +} + function _measureText(ctx, data, gc, longest, string) { + let textWidth = data[string]; + if (!textWidth) { + textWidth = data[string] = ctx.measureText(string).width; + gc.push(string); + } + if (textWidth > longest) { + longest = textWidth; + } + return longest; +} + function _longestText(ctx, font, arrayOfThings, cache) { + cache = cache || {}; + let data = cache.data = cache.data || {}; + let gc = cache.garbageCollect = cache.garbageCollect || []; + if (cache.font !== font) { + data = cache.data = {}; + gc = cache.garbageCollect = []; + cache.font = font; + } + ctx.save(); + ctx.font = font; + let longest = 0; + const ilen = arrayOfThings.length; + let i, j, jlen, thing, nestedThing; + for(i = 0; i < ilen; i++){ + thing = arrayOfThings[i]; + if (thing !== undefined && thing !== null && isArray(thing) !== true) { + longest = _measureText(ctx, data, gc, longest, thing); + } else if (isArray(thing)) { + for(j = 0, jlen = thing.length; j < jlen; j++){ + nestedThing = thing[j]; + if (nestedThing !== undefined && nestedThing !== null && !isArray(nestedThing)) { + longest = _measureText(ctx, data, gc, longest, nestedThing); + } + } + } + } + ctx.restore(); + const gcLen = gc.length / 2; + if (gcLen > arrayOfThings.length) { + for(i = 0; i < gcLen; i++){ + delete data[gc[i]]; + } + gc.splice(0, gcLen); + } + return longest; +} + function _alignPixel(chart, pixel, width) { + const devicePixelRatio = chart.currentDevicePixelRatio; + const halfWidth = width !== 0 ? Math.max(width / 2, 0.5) : 0; + return Math.round((pixel - halfWidth) * devicePixelRatio) / devicePixelRatio + halfWidth; +} + function clearCanvas(canvas, ctx) { + ctx = ctx || canvas.getContext('2d'); + ctx.save(); + ctx.resetTransform(); + ctx.clearRect(0, 0, canvas.width, canvas.height); + ctx.restore(); +} +function drawPoint(ctx, options, x, y) { + drawPointLegend(ctx, options, x, y, null); +} +function drawPointLegend(ctx, options, x, y, w) { + let type, xOffset, yOffset, size, cornerRadius, width, xOffsetW, yOffsetW; + const style = options.pointStyle; + const rotation = options.rotation; + const radius = options.radius; + let rad = (rotation || 0) * RAD_PER_DEG; + if (style && typeof style === 'object') { + type = style.toString(); + if (type === '[object HTMLImageElement]' || type === '[object HTMLCanvasElement]') { + ctx.save(); + ctx.translate(x, y); + ctx.rotate(rad); + ctx.drawImage(style, -style.width / 2, -style.height / 2, style.width, style.height); + ctx.restore(); + return; + } + } + if (isNaN(radius) || radius <= 0) { + return; + } + ctx.beginPath(); + switch(style){ + default: + if (w) { + ctx.ellipse(x, y, w / 2, radius, 0, 0, TAU); + } else { + ctx.arc(x, y, radius, 0, TAU); + } + ctx.closePath(); + break; + case 'triangle': + width = w ? w / 2 : radius; + ctx.moveTo(x + Math.sin(rad) * width, y - Math.cos(rad) * radius); + rad += TWO_THIRDS_PI; + ctx.lineTo(x + Math.sin(rad) * width, y - Math.cos(rad) * radius); + rad += TWO_THIRDS_PI; + ctx.lineTo(x + Math.sin(rad) * width, y - Math.cos(rad) * radius); + ctx.closePath(); + break; + case 'rectRounded': + cornerRadius = radius * 0.516; + size = radius - cornerRadius; + xOffset = Math.cos(rad + QUARTER_PI) * size; + xOffsetW = Math.cos(rad + QUARTER_PI) * (w ? w / 2 - cornerRadius : size); + yOffset = Math.sin(rad + QUARTER_PI) * size; + yOffsetW = Math.sin(rad + QUARTER_PI) * (w ? w / 2 - cornerRadius : size); + ctx.arc(x - xOffsetW, y - yOffset, cornerRadius, rad - PI, rad - HALF_PI); + ctx.arc(x + yOffsetW, y - xOffset, cornerRadius, rad - HALF_PI, rad); + ctx.arc(x + xOffsetW, y + yOffset, cornerRadius, rad, rad + HALF_PI); + ctx.arc(x - yOffsetW, y + xOffset, cornerRadius, rad + HALF_PI, rad + PI); + ctx.closePath(); + break; + case 'rect': + if (!rotation) { + size = Math.SQRT1_2 * radius; + width = w ? w / 2 : size; + ctx.rect(x - width, y - size, 2 * width, 2 * size); + break; + } + rad += QUARTER_PI; + case 'rectRot': + xOffsetW = Math.cos(rad) * (w ? w / 2 : radius); + xOffset = Math.cos(rad) * radius; + yOffset = Math.sin(rad) * radius; + yOffsetW = Math.sin(rad) * (w ? w / 2 : radius); + ctx.moveTo(x - xOffsetW, y - yOffset); + ctx.lineTo(x + yOffsetW, y - xOffset); + ctx.lineTo(x + xOffsetW, y + yOffset); + ctx.lineTo(x - yOffsetW, y + xOffset); + ctx.closePath(); + break; + case 'crossRot': + rad += QUARTER_PI; + case 'cross': + xOffsetW = Math.cos(rad) * (w ? w / 2 : radius); + xOffset = Math.cos(rad) * radius; + yOffset = Math.sin(rad) * radius; + yOffsetW = Math.sin(rad) * (w ? w / 2 : radius); + ctx.moveTo(x - xOffsetW, y - yOffset); + ctx.lineTo(x + xOffsetW, y + yOffset); + ctx.moveTo(x + yOffsetW, y - xOffset); + ctx.lineTo(x - yOffsetW, y + xOffset); + break; + case 'star': + xOffsetW = Math.cos(rad) * (w ? w / 2 : radius); + xOffset = Math.cos(rad) * radius; + yOffset = Math.sin(rad) * radius; + yOffsetW = Math.sin(rad) * (w ? w / 2 : radius); + ctx.moveTo(x - xOffsetW, y - yOffset); + ctx.lineTo(x + xOffsetW, y + yOffset); + ctx.moveTo(x + yOffsetW, y - xOffset); + ctx.lineTo(x - yOffsetW, y + xOffset); + rad += QUARTER_PI; + xOffsetW = Math.cos(rad) * (w ? w / 2 : radius); + xOffset = Math.cos(rad) * radius; + yOffset = Math.sin(rad) * radius; + yOffsetW = Math.sin(rad) * (w ? w / 2 : radius); + ctx.moveTo(x - xOffsetW, y - yOffset); + ctx.lineTo(x + xOffsetW, y + yOffset); + ctx.moveTo(x + yOffsetW, y - xOffset); + ctx.lineTo(x - yOffsetW, y + xOffset); + break; + case 'line': + xOffset = w ? w / 2 : Math.cos(rad) * radius; + yOffset = Math.sin(rad) * radius; + ctx.moveTo(x - xOffset, y - yOffset); + ctx.lineTo(x + xOffset, y + yOffset); + break; + case 'dash': + ctx.moveTo(x, y); + ctx.lineTo(x + Math.cos(rad) * (w ? w / 2 : radius), y + Math.sin(rad) * radius); + break; + case false: + ctx.closePath(); + break; + } + ctx.fill(); + if (options.borderWidth > 0) { + ctx.stroke(); + } +} + function _isPointInArea(point, area, margin) { + margin = margin || 0.5; + return !area || point && point.x > area.left - margin && point.x < area.right + margin && point.y > area.top - margin && point.y < area.bottom + margin; +} +function clipArea(ctx, area) { + ctx.save(); + ctx.beginPath(); + ctx.rect(area.left, area.top, area.right - area.left, area.bottom - area.top); + ctx.clip(); +} +function unclipArea(ctx) { + ctx.restore(); +} + function _steppedLineTo(ctx, previous, target, flip, mode) { + if (!previous) { + return ctx.lineTo(target.x, target.y); + } + if (mode === 'middle') { + const midpoint = (previous.x + target.x) / 2.0; + ctx.lineTo(midpoint, previous.y); + ctx.lineTo(midpoint, target.y); + } else if (mode === 'after' !== !!flip) { + ctx.lineTo(previous.x, target.y); + } else { + ctx.lineTo(target.x, previous.y); + } + ctx.lineTo(target.x, target.y); +} + function _bezierCurveTo(ctx, previous, target, flip) { + if (!previous) { + return ctx.lineTo(target.x, target.y); + } + ctx.bezierCurveTo(flip ? previous.cp1x : previous.cp2x, flip ? previous.cp1y : previous.cp2y, flip ? target.cp2x : target.cp1x, flip ? target.cp2y : target.cp1y, target.x, target.y); +} + function renderText(ctx, text, x, y, font, opts = {}) { + const lines = isArray(text) ? text : [ + text + ]; + const stroke = opts.strokeWidth > 0 && opts.strokeColor !== ''; + let i, line; + ctx.save(); + ctx.font = font.string; + setRenderOpts(ctx, opts); + for(i = 0; i < lines.length; ++i){ + line = lines[i]; + if (opts.backdrop) { + drawBackdrop(ctx, opts.backdrop); + } + if (stroke) { + if (opts.strokeColor) { + ctx.strokeStyle = opts.strokeColor; + } + if (!isNullOrUndef(opts.strokeWidth)) { + ctx.lineWidth = opts.strokeWidth; + } + ctx.strokeText(line, x, y, opts.maxWidth); + } + ctx.fillText(line, x, y, opts.maxWidth); + decorateText(ctx, x, y, line, opts); + y += font.lineHeight; + } + ctx.restore(); +} +function setRenderOpts(ctx, opts) { + if (opts.translation) { + ctx.translate(opts.translation[0], opts.translation[1]); + } + if (!isNullOrUndef(opts.rotation)) { + ctx.rotate(opts.rotation); + } + if (opts.color) { + ctx.fillStyle = opts.color; + } + if (opts.textAlign) { + ctx.textAlign = opts.textAlign; + } + if (opts.textBaseline) { + ctx.textBaseline = opts.textBaseline; + } +} +function decorateText(ctx, x, y, line, opts) { + if (opts.strikethrough || opts.underline) { + const metrics = ctx.measureText(line); + const left = x - metrics.actualBoundingBoxLeft; + const right = x + metrics.actualBoundingBoxRight; + const top = y - metrics.actualBoundingBoxAscent; + const bottom = y + metrics.actualBoundingBoxDescent; + const yDecoration = opts.strikethrough ? (top + bottom) / 2 : bottom; + ctx.strokeStyle = ctx.fillStyle; + ctx.beginPath(); + ctx.lineWidth = opts.decorationWidth || 2; + ctx.moveTo(left, yDecoration); + ctx.lineTo(right, yDecoration); + ctx.stroke(); + } +} +function drawBackdrop(ctx, opts) { + const oldColor = ctx.fillStyle; + ctx.fillStyle = opts.color; + ctx.fillRect(opts.left, opts.top, opts.width, opts.height); + ctx.fillStyle = oldColor; +} + function addRoundedRectPath(ctx, rect) { + const { x , y , w , h , radius } = rect; + ctx.arc(x + radius.topLeft, y + radius.topLeft, radius.topLeft, -HALF_PI, PI, true); + ctx.lineTo(x, y + h - radius.bottomLeft); + ctx.arc(x + radius.bottomLeft, y + h - radius.bottomLeft, radius.bottomLeft, PI, HALF_PI, true); + ctx.lineTo(x + w - radius.bottomRight, y + h); + ctx.arc(x + w - radius.bottomRight, y + h - radius.bottomRight, radius.bottomRight, HALF_PI, 0, true); + ctx.lineTo(x + w, y + radius.topRight); + ctx.arc(x + w - radius.topRight, y + radius.topRight, radius.topRight, 0, -HALF_PI, true); + ctx.lineTo(x + radius.topLeft, y); +} + +function _createResolver(scopes, prefixes = [ + '' +], rootScopes = scopes, fallback, getTarget = ()=>scopes[0]) { + if (!defined(fallback)) { + fallback = _resolve('_fallback', scopes); + } + const cache = { + [Symbol.toStringTag]: 'Object', + _cacheable: true, + _scopes: scopes, + _rootScopes: rootScopes, + _fallback: fallback, + _getTarget: getTarget, + override: (scope)=>_createResolver([ + scope, + ...scopes + ], prefixes, rootScopes, fallback) + }; + return new Proxy(cache, { + deleteProperty (target, prop) { + delete target[prop]; + delete target._keys; + delete scopes[0][prop]; + return true; + }, + get (target, prop) { + return _cached(target, prop, ()=>_resolveWithPrefixes(prop, prefixes, scopes, target)); + }, + getOwnPropertyDescriptor (target, prop) { + return Reflect.getOwnPropertyDescriptor(target._scopes[0], prop); + }, + getPrototypeOf () { + return Reflect.getPrototypeOf(scopes[0]); + }, + has (target, prop) { + return getKeysFromAllScopes(target).includes(prop); + }, + ownKeys (target) { + return getKeysFromAllScopes(target); + }, + set (target, prop, value) { + const storage = target._storage || (target._storage = getTarget()); + target[prop] = storage[prop] = value; + delete target._keys; + return true; + } + }); +} + function _attachContext(proxy, context, subProxy, descriptorDefaults) { + const cache = { + _cacheable: false, + _proxy: proxy, + _context: context, + _subProxy: subProxy, + _stack: new Set(), + _descriptors: _descriptors(proxy, descriptorDefaults), + setContext: (ctx)=>_attachContext(proxy, ctx, subProxy, descriptorDefaults), + override: (scope)=>_attachContext(proxy.override(scope), context, subProxy, descriptorDefaults) + }; + return new Proxy(cache, { + deleteProperty (target, prop) { + delete target[prop]; + delete proxy[prop]; + return true; + }, + get (target, prop, receiver) { + return _cached(target, prop, ()=>_resolveWithContext(target, prop, receiver)); + }, + getOwnPropertyDescriptor (target, prop) { + return target._descriptors.allKeys ? Reflect.has(proxy, prop) ? { + enumerable: true, + configurable: true + } : undefined : Reflect.getOwnPropertyDescriptor(proxy, prop); + }, + getPrototypeOf () { + return Reflect.getPrototypeOf(proxy); + }, + has (target, prop) { + return Reflect.has(proxy, prop); + }, + ownKeys () { + return Reflect.ownKeys(proxy); + }, + set (target, prop, value) { + proxy[prop] = value; + delete target[prop]; + return true; + } + }); +} + function _descriptors(proxy, defaults = { + scriptable: true, + indexable: true +}) { + const { _scriptable =defaults.scriptable , _indexable =defaults.indexable , _allKeys =defaults.allKeys } = proxy; + return { + allKeys: _allKeys, + scriptable: _scriptable, + indexable: _indexable, + isScriptable: isFunction(_scriptable) ? _scriptable : ()=>_scriptable, + isIndexable: isFunction(_indexable) ? _indexable : ()=>_indexable + }; +} +const readKey = (prefix, name)=>prefix ? prefix + _capitalize(name) : name; +const needsSubResolver = (prop, value)=>isObject(value) && prop !== 'adapters' && (Object.getPrototypeOf(value) === null || value.constructor === Object); +function _cached(target, prop, resolve) { + if (Object.prototype.hasOwnProperty.call(target, prop)) { + return target[prop]; + } + const value = resolve(); + target[prop] = value; return value; - case '%': - value /= 100; - break; - } - return size * value; } -const numberOrZero = v => +v || 0; +function _resolveWithContext(target, prop, receiver) { + const { _proxy , _context , _subProxy , _descriptors: descriptors } = target; + let value = _proxy[prop]; + if (isFunction(value) && descriptors.isScriptable(prop)) { + value = _resolveScriptable(prop, value, target, receiver); + } + if (isArray(value) && value.length) { + value = _resolveArray(prop, value, target, descriptors.isIndexable); + } + if (needsSubResolver(prop, value)) { + value = _attachContext(value, _context, _subProxy && _subProxy[prop], descriptors); + } + return value; +} +function _resolveScriptable(prop, value, target, receiver) { + const { _proxy , _context , _subProxy , _stack } = target; + if (_stack.has(prop)) { + throw new Error('Recursion detected: ' + Array.from(_stack).join('->') + '->' + prop); + } + _stack.add(prop); + value = value(_context, _subProxy || receiver); + _stack.delete(prop); + if (needsSubResolver(prop, value)) { + value = createSubResolver(_proxy._scopes, _proxy, prop, value); + } + return value; +} +function _resolveArray(prop, value, target, isIndexable) { + const { _proxy , _context , _subProxy , _descriptors: descriptors } = target; + if (defined(_context.index) && isIndexable(prop)) { + value = value[_context.index % value.length]; + } else if (isObject(value[0])) { + const arr = value; + const scopes = _proxy._scopes.filter((s)=>s !== arr); + value = []; + for (const item of arr){ + const resolver = createSubResolver(scopes, _proxy, prop, item); + value.push(_attachContext(resolver, _context, _subProxy && _subProxy[prop], descriptors)); + } + } + return value; +} +function resolveFallback(fallback, prop, value) { + return isFunction(fallback) ? fallback(prop, value) : fallback; +} +const getScope = (key, parent)=>key === true ? parent : typeof key === 'string' ? resolveObjectKey(parent, key) : undefined; +function addScopes(set, parentScopes, key, parentFallback, value) { + for (const parent of parentScopes){ + const scope = getScope(key, parent); + if (scope) { + set.add(scope); + const fallback = resolveFallback(scope._fallback, key, value); + if (defined(fallback) && fallback !== key && fallback !== parentFallback) { + return fallback; + } + } else if (scope === false && defined(parentFallback) && key !== parentFallback) { + return null; + } + } + return false; +} +function createSubResolver(parentScopes, resolver, prop, value) { + const rootScopes = resolver._rootScopes; + const fallback = resolveFallback(resolver._fallback, prop, value); + const allScopes = [ + ...parentScopes, + ...rootScopes + ]; + const set = new Set(); + set.add(value); + let key = addScopesFromKey(set, allScopes, prop, fallback || prop, value); + if (key === null) { + return false; + } + if (defined(fallback) && fallback !== prop) { + key = addScopesFromKey(set, allScopes, fallback, key, value); + if (key === null) { + return false; + } + } + return _createResolver(Array.from(set), [ + '' + ], rootScopes, fallback, ()=>subGetTarget(resolver, prop, value)); +} +function addScopesFromKey(set, allScopes, key, fallback, item) { + while(key){ + key = addScopes(set, allScopes, key, fallback, item); + } + return key; +} +function subGetTarget(resolver, prop, value) { + const parent = resolver._getTarget(); + if (!(prop in parent)) { + parent[prop] = {}; + } + const target = parent[prop]; + if (isArray(target) && isObject(value)) { + return value; + } + return target || {}; +} +function _resolveWithPrefixes(prop, prefixes, scopes, proxy) { + let value; + for (const prefix of prefixes){ + value = _resolve(readKey(prefix, prop), scopes); + if (defined(value)) { + return needsSubResolver(prop, value) ? createSubResolver(scopes, proxy, prop, value) : value; + } + } +} +function _resolve(key, scopes) { + for (const scope of scopes){ + if (!scope) { + continue; + } + const value = scope[key]; + if (defined(value)) { + return value; + } + } +} +function getKeysFromAllScopes(target) { + let keys = target._keys; + if (!keys) { + keys = target._keys = resolveKeysFromAllScopes(target._scopes); + } + return keys; +} +function resolveKeysFromAllScopes(scopes) { + const set = new Set(); + for (const scope of scopes){ + for (const key of Object.keys(scope).filter((k)=>!k.startsWith('_'))){ + set.add(key); + } + } + return Array.from(set); +} +function _parseObjectDataRadialScale(meta, data, start, count) { + const { iScale } = meta; + const { key ='r' } = this._parsing; + const parsed = new Array(count); + let i, ilen, index, item; + for(i = 0, ilen = count; i < ilen; ++i){ + index = i + start; + item = data[index]; + parsed[i] = { + r: iScale.parse(resolveObjectKey(item, key), index) + }; + } + return parsed; +} + +const EPSILON = Number.EPSILON || 1e-14; +const getPoint = (points, i)=>i < points.length && !points[i].skip && points[i]; +const getValueAxis = (indexAxis)=>indexAxis === 'x' ? 'y' : 'x'; +function splineCurve(firstPoint, middlePoint, afterPoint, t) { + // Props to Rob Spencer at scaled innovation for his post on splining between points + // http://scaledinnovation.com/analytics/splines/aboutSplines.html + // This function must also respect "skipped" points + const previous = firstPoint.skip ? middlePoint : firstPoint; + const current = middlePoint; + const next = afterPoint.skip ? middlePoint : afterPoint; + const d01 = distanceBetweenPoints(current, previous); + const d12 = distanceBetweenPoints(next, current); + let s01 = d01 / (d01 + d12); + let s12 = d12 / (d01 + d12); + // If all points are the same, s01 & s02 will be inf + s01 = isNaN(s01) ? 0 : s01; + s12 = isNaN(s12) ? 0 : s12; + const fa = t * s01; // scaling factor for triangle Ta + const fb = t * s12; + return { + previous: { + x: current.x - fa * (next.x - previous.x), + y: current.y - fa * (next.y - previous.y) + }, + next: { + x: current.x + fb * (next.x - previous.x), + y: current.y + fb * (next.y - previous.y) + } + }; +} +/** + * Adjust tangents to ensure monotonic properties + */ function monotoneAdjust(points, deltaK, mK) { + const pointsLen = points.length; + let alphaK, betaK, tauK, squaredMagnitude, pointCurrent; + let pointAfter = getPoint(points, 0); + for(let i = 0; i < pointsLen - 1; ++i){ + pointCurrent = pointAfter; + pointAfter = getPoint(points, i + 1); + if (!pointCurrent || !pointAfter) { + continue; + } + if (almostEquals(deltaK[i], 0, EPSILON)) { + mK[i] = mK[i + 1] = 0; + continue; + } + alphaK = mK[i] / deltaK[i]; + betaK = mK[i + 1] / deltaK[i]; + squaredMagnitude = Math.pow(alphaK, 2) + Math.pow(betaK, 2); + if (squaredMagnitude <= 9) { + continue; + } + tauK = 3 / Math.sqrt(squaredMagnitude); + mK[i] = alphaK * tauK * deltaK[i]; + mK[i + 1] = betaK * tauK * deltaK[i]; + } +} +function monotoneCompute(points, mK, indexAxis = 'x') { + const valueAxis = getValueAxis(indexAxis); + const pointsLen = points.length; + let delta, pointBefore, pointCurrent; + let pointAfter = getPoint(points, 0); + for(let i = 0; i < pointsLen; ++i){ + pointBefore = pointCurrent; + pointCurrent = pointAfter; + pointAfter = getPoint(points, i + 1); + if (!pointCurrent) { + continue; + } + const iPixel = pointCurrent[indexAxis]; + const vPixel = pointCurrent[valueAxis]; + if (pointBefore) { + delta = (iPixel - pointBefore[indexAxis]) / 3; + pointCurrent[`cp1${indexAxis}`] = iPixel - delta; + pointCurrent[`cp1${valueAxis}`] = vPixel - delta * mK[i]; + } + if (pointAfter) { + delta = (pointAfter[indexAxis] - iPixel) / 3; + pointCurrent[`cp2${indexAxis}`] = iPixel + delta; + pointCurrent[`cp2${valueAxis}`] = vPixel + delta * mK[i]; + } + } +} +/** + * This function calculates Bézier control points in a similar way than |splineCurve|, + * but preserves monotonicity of the provided data and ensures no local extremums are added + * between the dataset discrete points due to the interpolation. + * See : https://en.wikipedia.org/wiki/Monotone_cubic_interpolation + */ function splineCurveMonotone(points, indexAxis = 'x') { + const valueAxis = getValueAxis(indexAxis); + const pointsLen = points.length; + const deltaK = Array(pointsLen).fill(0); + const mK = Array(pointsLen); + // Calculate slopes (deltaK) and initialize tangents (mK) + let i, pointBefore, pointCurrent; + let pointAfter = getPoint(points, 0); + for(i = 0; i < pointsLen; ++i){ + pointBefore = pointCurrent; + pointCurrent = pointAfter; + pointAfter = getPoint(points, i + 1); + if (!pointCurrent) { + continue; + } + if (pointAfter) { + const slopeDelta = pointAfter[indexAxis] - pointCurrent[indexAxis]; + // In the case of two points that appear at the same x pixel, slopeDeltaX is 0 + deltaK[i] = slopeDelta !== 0 ? (pointAfter[valueAxis] - pointCurrent[valueAxis]) / slopeDelta : 0; + } + mK[i] = !pointBefore ? deltaK[i] : !pointAfter ? deltaK[i - 1] : sign(deltaK[i - 1]) !== sign(deltaK[i]) ? 0 : (deltaK[i - 1] + deltaK[i]) / 2; + } + monotoneAdjust(points, deltaK, mK); + monotoneCompute(points, mK, indexAxis); +} +function capControlPoint(pt, min, max) { + return Math.max(Math.min(pt, max), min); +} +function capBezierPoints(points, area) { + let i, ilen, point, inArea, inAreaPrev; + let inAreaNext = _isPointInArea(points[0], area); + for(i = 0, ilen = points.length; i < ilen; ++i){ + inAreaPrev = inArea; + inArea = inAreaNext; + inAreaNext = i < ilen - 1 && _isPointInArea(points[i + 1], area); + if (!inArea) { + continue; + } + point = points[i]; + if (inAreaPrev) { + point.cp1x = capControlPoint(point.cp1x, area.left, area.right); + point.cp1y = capControlPoint(point.cp1y, area.top, area.bottom); + } + if (inAreaNext) { + point.cp2x = capControlPoint(point.cp2x, area.left, area.right); + point.cp2y = capControlPoint(point.cp2y, area.top, area.bottom); + } + } +} +/** + * @private + */ function _updateBezierControlPoints(points, options, area, loop, indexAxis) { + let i, ilen, point, controlPoints; + // Only consider points that are drawn in case the spanGaps option is used + if (options.spanGaps) { + points = points.filter((pt)=>!pt.skip); + } + if (options.cubicInterpolationMode === 'monotone') { + splineCurveMonotone(points, indexAxis); + } else { + let prev = loop ? points[points.length - 1] : points[0]; + for(i = 0, ilen = points.length; i < ilen; ++i){ + point = points[i]; + controlPoints = splineCurve(prev, point, points[Math.min(i + 1, ilen - (loop ? 0 : 1)) % ilen], options.tension); + point.cp1x = controlPoints.previous.x; + point.cp1y = controlPoints.previous.y; + point.cp2x = controlPoints.next.x; + point.cp2y = controlPoints.next.y; + prev = point; + } + } + if (options.capBezierPoints) { + capBezierPoints(points, area); + } +} + +const atEdge = (t)=>t === 0 || t === 1; +const elasticIn = (t, s, p)=>-(Math.pow(2, 10 * (t -= 1)) * Math.sin((t - s) * TAU / p)); +const elasticOut = (t, s, p)=>Math.pow(2, -10 * t) * Math.sin((t - s) * TAU / p) + 1; +/** + * Easing functions adapted from Robert Penner's easing equations. + * @namespace Chart.helpers.easing.effects + * @see http://www.robertpenner.com/easing/ + */ const effects = { + linear: (t)=>t, + easeInQuad: (t)=>t * t, + easeOutQuad: (t)=>-t * (t - 2), + easeInOutQuad: (t)=>(t /= 0.5) < 1 ? 0.5 * t * t : -0.5 * (--t * (t - 2) - 1), + easeInCubic: (t)=>t * t * t, + easeOutCubic: (t)=>(t -= 1) * t * t + 1, + easeInOutCubic: (t)=>(t /= 0.5) < 1 ? 0.5 * t * t * t : 0.5 * ((t -= 2) * t * t + 2), + easeInQuart: (t)=>t * t * t * t, + easeOutQuart: (t)=>-((t -= 1) * t * t * t - 1), + easeInOutQuart: (t)=>(t /= 0.5) < 1 ? 0.5 * t * t * t * t : -0.5 * ((t -= 2) * t * t * t - 2), + easeInQuint: (t)=>t * t * t * t * t, + easeOutQuint: (t)=>(t -= 1) * t * t * t * t + 1, + easeInOutQuint: (t)=>(t /= 0.5) < 1 ? 0.5 * t * t * t * t * t : 0.5 * ((t -= 2) * t * t * t * t + 2), + easeInSine: (t)=>-Math.cos(t * HALF_PI) + 1, + easeOutSine: (t)=>Math.sin(t * HALF_PI), + easeInOutSine: (t)=>-0.5 * (Math.cos(PI * t) - 1), + easeInExpo: (t)=>t === 0 ? 0 : Math.pow(2, 10 * (t - 1)), + easeOutExpo: (t)=>t === 1 ? 1 : -Math.pow(2, -10 * t) + 1, + easeInOutExpo: (t)=>atEdge(t) ? t : t < 0.5 ? 0.5 * Math.pow(2, 10 * (t * 2 - 1)) : 0.5 * (-Math.pow(2, -10 * (t * 2 - 1)) + 2), + easeInCirc: (t)=>t >= 1 ? t : -(Math.sqrt(1 - t * t) - 1), + easeOutCirc: (t)=>Math.sqrt(1 - (t -= 1) * t), + easeInOutCirc: (t)=>(t /= 0.5) < 1 ? -0.5 * (Math.sqrt(1 - t * t) - 1) : 0.5 * (Math.sqrt(1 - (t -= 2) * t) + 1), + easeInElastic: (t)=>atEdge(t) ? t : elasticIn(t, 0.075, 0.3), + easeOutElastic: (t)=>atEdge(t) ? t : elasticOut(t, 0.075, 0.3), + easeInOutElastic (t) { + const s = 0.1125; + const p = 0.45; + return atEdge(t) ? t : t < 0.5 ? 0.5 * elasticIn(t * 2, s, p) : 0.5 + 0.5 * elasticOut(t * 2 - 1, s, p); + }, + easeInBack (t) { + const s = 1.70158; + return t * t * ((s + 1) * t - s); + }, + easeOutBack (t) { + const s = 1.70158; + return (t -= 1) * t * ((s + 1) * t + s) + 1; + }, + easeInOutBack (t) { + let s = 1.70158; + if ((t /= 0.5) < 1) { + return 0.5 * (t * t * (((s *= 1.525) + 1) * t - s)); + } + return 0.5 * ((t -= 2) * t * (((s *= 1.525) + 1) * t + s) + 2); + }, + easeInBounce: (t)=>1 - effects.easeOutBounce(1 - t), + easeOutBounce (t) { + const m = 7.5625; + const d = 2.75; + if (t < 1 / d) { + return m * t * t; + } + if (t < 2 / d) { + return m * (t -= 1.5 / d) * t + 0.75; + } + if (t < 2.5 / d) { + return m * (t -= 2.25 / d) * t + 0.9375; + } + return m * (t -= 2.625 / d) * t + 0.984375; + }, + easeInOutBounce: (t)=>t < 0.5 ? effects.easeInBounce(t * 2) * 0.5 : effects.easeOutBounce(t * 2 - 1) * 0.5 + 0.5 +}; + +/** + * @private + */ function _pointInLine(p1, p2, t, mode) { + return { + x: p1.x + t * (p2.x - p1.x), + y: p1.y + t * (p2.y - p1.y) + }; +} +/** + * @private + */ function _steppedInterpolation(p1, p2, t, mode) { + return { + x: p1.x + t * (p2.x - p1.x), + y: mode === 'middle' ? t < 0.5 ? p1.y : p2.y : mode === 'after' ? t < 1 ? p1.y : p2.y : t > 0 ? p2.y : p1.y + }; +} +/** + * @private + */ function _bezierInterpolation(p1, p2, t, mode) { + const cp1 = { + x: p1.cp2x, + y: p1.cp2y + }; + const cp2 = { + x: p2.cp1x, + y: p2.cp1y + }; + const a = _pointInLine(p1, cp1, t); + const b = _pointInLine(cp1, cp2, t); + const c = _pointInLine(cp2, p2, t); + const d = _pointInLine(a, b, t); + const e = _pointInLine(b, c, t); + return _pointInLine(d, e, t); +} + +const LINE_HEIGHT = /^(normal|(\d+(?:\.\d+)?)(px|em|%)?)$/; +const FONT_STYLE = /^(normal|italic|initial|inherit|unset|(oblique( -?[0-9]?[0-9]deg)?))$/; +/** + * @alias Chart.helpers.options + * @namespace + */ /** + * Converts the given line height `value` in pixels for a specific font `size`. + * @param value - The lineHeight to parse (eg. 1.6, '14px', '75%', '1.6em'). + * @param size - The font size (in pixels) used to resolve relative `value`. + * @returns The effective line height in pixels (size * 1.2 if value is invalid). + * @see https://developer.mozilla.org/en-US/docs/Web/CSS/line-height + * @since 2.7.0 + */ function toLineHeight(value, size) { + const matches = ('' + value).match(LINE_HEIGHT); + if (!matches || matches[1] === 'normal') { + return size * 1.2; + } + value = +matches[2]; + switch(matches[3]){ + case 'px': + return value; + case '%': + value /= 100; + break; + } + return size * value; +} +const numberOrZero = (v)=>+v || 0; function _readValueToProps(value, props) { - const ret = {}; - const objProps = isObject(props); - const keys = objProps ? Object.keys(props) : props; - const read = isObject(value) - ? objProps - ? prop => valueOrDefault(value[prop], value[props[prop]]) - : prop => value[prop] - : () => value; - for (const prop of keys) { - ret[prop] = numberOrZero(read(prop)); - } - return ret; -} -function toTRBL(value) { - return _readValueToProps(value, {top: 'y', right: 'x', bottom: 'y', left: 'x'}); -} -function toTRBLCorners(value) { - return _readValueToProps(value, ['topLeft', 'topRight', 'bottomLeft', 'bottomRight']); -} -function toPadding(value) { - const obj = toTRBL(value); - obj.width = obj.left + obj.right; - obj.height = obj.top + obj.bottom; - return obj; -} -function toFont(options, fallback) { - options = options || {}; - fallback = fallback || defaults.font; - let size = valueOrDefault(options.size, fallback.size); - if (typeof size === 'string') { - size = parseInt(size, 10); - } - let style = valueOrDefault(options.style, fallback.style); - if (style && !('' + style).match(FONT_STYLE)) { - console.warn('Invalid font style specified: "' + style + '"'); - style = ''; - } - const font = { - family: valueOrDefault(options.family, fallback.family), - lineHeight: toLineHeight(valueOrDefault(options.lineHeight, fallback.lineHeight), size), - size, - style, - weight: valueOrDefault(options.weight, fallback.weight), - string: '' - }; - font.string = toFontString(font); - return font; -} -function resolve(inputs, context, index, info) { - let cacheable = true; - let i, ilen, value; - for (i = 0, ilen = inputs.length; i < ilen; ++i) { - value = inputs[i]; - if (value === undefined) { - continue; + const ret = {}; + const objProps = isObject(props); + const keys = objProps ? Object.keys(props) : props; + const read = isObject(value) ? objProps ? (prop)=>valueOrDefault(value[prop], value[props[prop]]) : (prop)=>value[prop] : ()=>value; + for (const prop of keys){ + ret[prop] = numberOrZero(read(prop)); } - if (context !== undefined && typeof value === 'function') { - value = value(context); - cacheable = false; - } - if (index !== undefined && isArray(value)) { - value = value[index % value.length]; - cacheable = false; - } - if (value !== undefined) { - if (info && !cacheable) { - info.cacheable = false; - } - return value; - } - } + return ret; } -function _addGrace(minmax, grace, beginAtZero) { - const {min, max} = minmax; - const change = toDimension(grace, (max - min) / 2); - const keepZero = (value, add) => beginAtZero && value === 0 ? 0 : value + add; - return { - min: keepZero(min, -Math.abs(change)), - max: keepZero(max, change) - }; +/** + * Converts the given value into a TRBL object. + * @param value - If a number, set the value to all TRBL component, + * else, if an object, use defined properties and sets undefined ones to 0. + * x / y are shorthands for same value for left/right and top/bottom. + * @returns The padding values (top, right, bottom, left) + * @since 3.0.0 + */ function toTRBL(value) { + return _readValueToProps(value, { + top: 'y', + right: 'x', + bottom: 'y', + left: 'x' + }); +} +/** + * Converts the given value into a TRBL corners object (similar with css border-radius). + * @param value - If a number, set the value to all TRBL corner components, + * else, if an object, use defined properties and sets undefined ones to 0. + * @returns The TRBL corner values (topLeft, topRight, bottomLeft, bottomRight) + * @since 3.0.0 + */ function toTRBLCorners(value) { + return _readValueToProps(value, [ + 'topLeft', + 'topRight', + 'bottomLeft', + 'bottomRight' + ]); +} +/** + * Converts the given value into a padding object with pre-computed width/height. + * @param value - If a number, set the value to all TRBL component, + * else, if an object, use defined properties and sets undefined ones to 0. + * x / y are shorthands for same value for left/right and top/bottom. + * @returns The padding values (top, right, bottom, left, width, height) + * @since 2.7.0 + */ function toPadding(value) { + const obj = toTRBL(value); + obj.width = obj.left + obj.right; + obj.height = obj.top + obj.bottom; + return obj; +} +/** + * Parses font options and returns the font object. + * @param options - A object that contains font options to be parsed. + * @param fallback - A object that contains fallback font options. + * @return The font object. + * @private + */ function toFont(options, fallback) { + options = options || {}; + fallback = fallback || defaults.font; + let size = valueOrDefault(options.size, fallback.size); + if (typeof size === 'string') { + size = parseInt(size, 10); + } + let style = valueOrDefault(options.style, fallback.style); + if (style && !('' + style).match(FONT_STYLE)) { + console.warn('Invalid font style specified: "' + style + '"'); + style = undefined; + } + const font = { + family: valueOrDefault(options.family, fallback.family), + lineHeight: toLineHeight(valueOrDefault(options.lineHeight, fallback.lineHeight), size), + size, + style, + weight: valueOrDefault(options.weight, fallback.weight), + string: '' + }; + font.string = toFontString(font); + return font; +} +/** + * Evaluates the given `inputs` sequentially and returns the first defined value. + * @param inputs - An array of values, falling back to the last value. + * @param context - If defined and the current value is a function, the value + * is called with `context` as first argument and the result becomes the new input. + * @param index - If defined and the current value is an array, the value + * at `index` become the new input. + * @param info - object to return information about resolution in + * @param info.cacheable - Will be set to `false` if option is not cacheable. + * @since 2.7.0 + */ function resolve(inputs, context, index, info) { + let cacheable = true; + let i, ilen, value; + for(i = 0, ilen = inputs.length; i < ilen; ++i){ + value = inputs[i]; + if (value === undefined) { + continue; + } + if (context !== undefined && typeof value === 'function') { + value = value(context); + cacheable = false; + } + if (index !== undefined && isArray(value)) { + value = value[index % value.length]; + cacheable = false; + } + if (value !== undefined) { + if (info && !cacheable) { + info.cacheable = false; + } + return value; + } + } +} +/** + * @param minmax + * @param grace + * @param beginAtZero + * @private + */ function _addGrace(minmax, grace, beginAtZero) { + const { min , max } = minmax; + const change = toDimension(grace, (max - min) / 2); + const keepZero = (value, add)=>beginAtZero && value === 0 ? 0 : value + add; + return { + min: keepZero(min, -Math.abs(change)), + max: keepZero(max, change) + }; } function createContext(parentContext, context) { - return Object.assign(Object.create(parentContext), context); + return Object.assign(Object.create(parentContext), context); } const getRightToLeftAdapter = function(rectX, width) { - return { - x(x) { - return rectX + rectX + width - x; - }, - setWidth(w) { - width = w; - }, - textAlign(align) { - if (align === 'center') { - return align; - } - return align === 'right' ? 'left' : 'right'; - }, - xPlus(x, value) { - return x - value; - }, - leftForLtr(x, itemWidth) { - return x - itemWidth; - }, - }; + return { + x (x) { + return rectX + rectX + width - x; + }, + setWidth (w) { + width = w; + }, + textAlign (align) { + if (align === 'center') { + return align; + } + return align === 'right' ? 'left' : 'right'; + }, + xPlus (x, value) { + return x - value; + }, + leftForLtr (x, itemWidth) { + return x - itemWidth; + } + }; }; const getLeftToRightAdapter = function() { - return { - x(x) { - return x; - }, - setWidth(w) { - }, - textAlign(align) { - return align; - }, - xPlus(x, value) { - return x + value; - }, - leftForLtr(x, _itemWidth) { - return x; - }, - }; + return { + x (x) { + return x; + }, + setWidth (w) {}, + textAlign (align) { + return align; + }, + xPlus (x, value) { + return x + value; + }, + leftForLtr (x, _itemWidth) { + return x; + } + }; }; function getRtlAdapter(rtl, rectX, width) { - return rtl ? getRightToLeftAdapter(rectX, width) : getLeftToRightAdapter(); + return rtl ? getRightToLeftAdapter(rectX, width) : getLeftToRightAdapter(); } function overrideTextDirection(ctx, direction) { - let style, original; - if (direction === 'ltr' || direction === 'rtl') { - style = ctx.canvas.style; - original = [ - style.getPropertyValue('direction'), - style.getPropertyPriority('direction'), - ]; - style.setProperty('direction', direction, 'important'); - ctx.prevTextDirection = original; - } + let style, original; + if (direction === 'ltr' || direction === 'rtl') { + style = ctx.canvas.style; + original = [ + style.getPropertyValue('direction'), + style.getPropertyPriority('direction') + ]; + style.setProperty('direction', direction, 'important'); + ctx.prevTextDirection = original; + } } function restoreTextDirection(ctx, original) { - if (original !== undefined) { - delete ctx.prevTextDirection; - ctx.canvas.style.setProperty('direction', original[0], original[1]); - } + if (original !== undefined) { + delete ctx.prevTextDirection; + ctx.canvas.style.setProperty('direction', original[0], original[1]); + } } function propertyFn(property) { - if (property === 'angle') { + if (property === 'angle') { + return { + between: _angleBetween, + compare: _angleDiff, + normalize: _normalizeAngle + }; + } return { - between: _angleBetween, - compare: _angleDiff, - normalize: _normalizeAngle, + between: _isBetween, + compare: (a, b)=>a - b, + normalize: (x)=>x }; - } - return { - between: _isBetween, - compare: (a, b) => a - b, - normalize: x => x - }; } -function normalizeSegment({start, end, count, loop, style}) { - return { - start: start % count, - end: end % count, - loop: loop && (end - start + 1) % count === 0, - style - }; +function normalizeSegment({ start , end , count , loop , style }) { + return { + start: start % count, + end: end % count, + loop: loop && (end - start + 1) % count === 0, + style + }; } function getSegment(segment, points, bounds) { - const {property, start: startBound, end: endBound} = bounds; - const {between, normalize} = propertyFn(property); - const count = points.length; - let {start, end, loop} = segment; - let i, ilen; - if (loop) { - start += count; - end += count; - for (i = 0, ilen = count; i < ilen; ++i) { - if (!between(normalize(points[start % count][property]), startBound, endBound)) { - break; - } - start--; - end--; + const { property , start: startBound , end: endBound } = bounds; + const { between , normalize } = propertyFn(property); + const count = points.length; + let { start , end , loop } = segment; + let i, ilen; + if (loop) { + start += count; + end += count; + for(i = 0, ilen = count; i < ilen; ++i){ + if (!between(normalize(points[start % count][property]), startBound, endBound)) { + break; + } + start--; + end--; + } + start %= count; + end %= count; + } + if (end < start) { + end += count; + } + return { + start, + end, + loop, + style: segment.style + }; +} + function _boundSegment(segment, points, bounds) { + if (!bounds) { + return [ + segment + ]; + } + const { property , start: startBound , end: endBound } = bounds; + const count = points.length; + const { compare , between , normalize } = propertyFn(property); + const { start , end , loop , style } = getSegment(segment, points, bounds); + const result = []; + let inside = false; + let subStart = null; + let value, point, prevValue; + const startIsBefore = ()=>between(startBound, prevValue, value) && compare(startBound, prevValue) !== 0; + const endIsBefore = ()=>compare(endBound, value) === 0 || between(endBound, prevValue, value); + const shouldStart = ()=>inside || startIsBefore(); + const shouldStop = ()=>!inside || endIsBefore(); + for(let i = start, prev = start; i <= end; ++i){ + point = points[i % count]; + if (point.skip) { + continue; + } + value = normalize(point[property]); + if (value === prevValue) { + continue; + } + inside = between(value, startBound, endBound); + if (subStart === null && shouldStart()) { + subStart = compare(value, startBound) === 0 ? i : prev; + } + if (subStart !== null && shouldStop()) { + result.push(normalizeSegment({ + start: subStart, + end: i, + loop, + count, + style + })); + subStart = null; + } + prev = i; + prevValue = value; + } + if (subStart !== null) { + result.push(normalizeSegment({ + start: subStart, + end, + loop, + count, + style + })); + } + return result; +} + function _boundSegments(line, bounds) { + const result = []; + const segments = line.segments; + for(let i = 0; i < segments.length; i++){ + const sub = _boundSegment(segments[i], line.points, bounds); + if (sub.length) { + result.push(...sub); + } + } + return result; +} + function findStartAndEnd(points, count, loop, spanGaps) { + let start = 0; + let end = count - 1; + if (loop && !spanGaps) { + while(start < count && !points[start].skip){ + start++; + } + } + while(start < count && points[start].skip){ + start++; } start %= count; + if (loop) { + end += start; + } + while(end > start && points[end % count].skip){ + end--; + } end %= count; - } - if (end < start) { - end += count; - } - return {start, end, loop, style: segment.style}; + return { + start, + end + }; } -function _boundSegment(segment, points, bounds) { - if (!bounds) { - return [segment]; - } - const {property, start: startBound, end: endBound} = bounds; - const count = points.length; - const {compare, between, normalize} = propertyFn(property); - const {start, end, loop, style} = getSegment(segment, points, bounds); - const result = []; - let inside = false; - let subStart = null; - let value, point, prevValue; - const startIsBefore = () => between(startBound, prevValue, value) && compare(startBound, prevValue) !== 0; - const endIsBefore = () => compare(endBound, value) === 0 || between(endBound, prevValue, value); - const shouldStart = () => inside || startIsBefore(); - const shouldStop = () => !inside || endIsBefore(); - for (let i = start, prev = start; i <= end; ++i) { - point = points[i % count]; - if (point.skip) { - continue; + function solidSegments(points, start, max, loop) { + const count = points.length; + const result = []; + let last = start; + let prev = points[start]; + let end; + for(end = start + 1; end <= max; ++end){ + const cur = points[end % count]; + if (cur.skip || cur.stop) { + if (!prev.skip) { + loop = false; + result.push({ + start: start % count, + end: (end - 1) % count, + loop + }); + start = last = cur.stop ? end : null; + } + } else { + last = end; + if (prev.skip) { + start = end; + } + } + prev = cur; } - value = normalize(point[property]); - if (value === prevValue) { - continue; + if (last !== null) { + result.push({ + start: start % count, + end: last % count, + loop + }); } - inside = between(value, startBound, endBound); - if (subStart === null && shouldStart()) { - subStart = compare(value, startBound) === 0 ? i : prev; - } - if (subStart !== null && shouldStop()) { - result.push(normalizeSegment({start: subStart, end: i, loop, count, style})); - subStart = null; - } - prev = i; - prevValue = value; - } - if (subStart !== null) { - result.push(normalizeSegment({start: subStart, end, loop, count, style})); - } - return result; + return result; } -function _boundSegments(line, bounds) { - const result = []; - const segments = line.segments; - for (let i = 0; i < segments.length; i++) { - const sub = _boundSegment(segments[i], line.points, bounds); - if (sub.length) { - result.push(...sub); + function _computeSegments(line, segmentOptions) { + const points = line.points; + const spanGaps = line.options.spanGaps; + const count = points.length; + if (!count) { + return []; } - } - return result; + const loop = !!line._loop; + const { start , end } = findStartAndEnd(points, count, loop, spanGaps); + if (spanGaps === true) { + return splitByStyles(line, [ + { + start, + end, + loop + } + ], points, segmentOptions); + } + const max = end < start ? end + count : end; + const completeLoop = !!line._fullLoop && start === 0 && end === count - 1; + return splitByStyles(line, solidSegments(points, start, max, completeLoop), points, segmentOptions); } -function findStartAndEnd(points, count, loop, spanGaps) { - let start = 0; - let end = count - 1; - if (loop && !spanGaps) { - while (start < count && !points[start].skip) { - start++; + function splitByStyles(line, segments, points, segmentOptions) { + if (!segmentOptions || !segmentOptions.setContext || !points) { + return segments; } - } - while (start < count && points[start].skip) { - start++; - } - start %= count; - if (loop) { - end += start; - } - while (end > start && points[end % count].skip) { - end--; - } - end %= count; - return {start, end}; + return doSplitByStyles(line, segments, points, segmentOptions); } -function solidSegments(points, start, max, loop) { - const count = points.length; - const result = []; - let last = start; - let prev = points[start]; - let end; - for (end = start + 1; end <= max; ++end) { - const cur = points[end % count]; - if (cur.skip || cur.stop) { - if (!prev.skip) { - loop = false; - result.push({start: start % count, end: (end - 1) % count, loop}); - start = last = cur.stop ? end : null; - } - } else { - last = end; - if (prev.skip) { - start = end; - } + function doSplitByStyles(line, segments, points, segmentOptions) { + const chartContext = line._chart.getContext(); + const baseStyle = readStyle(line.options); + const { _datasetIndex: datasetIndex , options: { spanGaps } } = line; + const count = points.length; + const result = []; + let prevStyle = baseStyle; + let start = segments[0].start; + let i = start; + function addStyle(s, e, l, st) { + const dir = spanGaps ? -1 : 1; + if (s === e) { + return; + } + s += count; + while(points[s % count].skip){ + s -= dir; + } + while(points[e % count].skip){ + e += dir; + } + if (s % count !== e % count) { + result.push({ + start: s % count, + end: e % count, + loop: l, + style: st + }); + prevStyle = st; + start = e % count; + } } - prev = cur; - } - if (last !== null) { - result.push({start: start % count, end: last % count, loop}); - } - return result; -} -function _computeSegments(line, segmentOptions) { - const points = line.points; - const spanGaps = line.options.spanGaps; - const count = points.length; - if (!count) { - return []; - } - const loop = !!line._loop; - const {start, end} = findStartAndEnd(points, count, loop, spanGaps); - if (spanGaps === true) { - return splitByStyles(line, [{start, end, loop}], points, segmentOptions); - } - const max = end < start ? end + count : end; - const completeLoop = !!line._fullLoop && start === 0 && end === count - 1; - return splitByStyles(line, solidSegments(points, start, max, completeLoop), points, segmentOptions); -} -function splitByStyles(line, segments, points, segmentOptions) { - if (!segmentOptions || !segmentOptions.setContext || !points) { - return segments; - } - return doSplitByStyles(line, segments, points, segmentOptions); -} -function doSplitByStyles(line, segments, points, segmentOptions) { - const chartContext = line._chart.getContext(); - const baseStyle = readStyle(line.options); - const {_datasetIndex: datasetIndex, options: {spanGaps}} = line; - const count = points.length; - const result = []; - let prevStyle = baseStyle; - let start = segments[0].start; - let i = start; - function addStyle(s, e, l, st) { - const dir = spanGaps ? -1 : 1; - if (s === e) { - return; + for (const segment of segments){ + start = spanGaps ? start : segment.start; + let prev = points[start % count]; + let style; + for(i = start + 1; i <= segment.end; i++){ + const pt = points[i % count]; + style = readStyle(segmentOptions.setContext(createContext(chartContext, { + type: 'segment', + p0: prev, + p1: pt, + p0DataIndex: (i - 1) % count, + p1DataIndex: i % count, + datasetIndex + }))); + if (styleChanged(style, prevStyle)) { + addStyle(start, i - 1, segment.loop, prevStyle); + } + prev = pt; + prevStyle = style; + } + if (start < i - 1) { + addStyle(start, i - 1, segment.loop, prevStyle); + } } - s += count; - while (points[s % count].skip) { - s -= dir; - } - while (points[e % count].skip) { - e += dir; - } - if (s % count !== e % count) { - result.push({start: s % count, end: e % count, loop: l, style: st}); - prevStyle = st; - start = e % count; - } - } - for (const segment of segments) { - start = spanGaps ? start : segment.start; - let prev = points[start % count]; - let style; - for (i = start + 1; i <= segment.end; i++) { - const pt = points[i % count]; - style = readStyle(segmentOptions.setContext(createContext(chartContext, { - type: 'segment', - p0: prev, - p1: pt, - p0DataIndex: (i - 1) % count, - p1DataIndex: i % count, - datasetIndex - }))); - if (styleChanged(style, prevStyle)) { - addStyle(start, i - 1, segment.loop, prevStyle); - } - prev = pt; - prevStyle = style; - } - if (start < i - 1) { - addStyle(start, i - 1, segment.loop, prevStyle); - } - } - return result; + return result; } function readStyle(options) { - return { - backgroundColor: options.backgroundColor, - borderCapStyle: options.borderCapStyle, - borderDash: options.borderDash, - borderDashOffset: options.borderDashOffset, - borderJoinStyle: options.borderJoinStyle, - borderWidth: options.borderWidth, - borderColor: options.borderColor - }; + return { + backgroundColor: options.backgroundColor, + borderCapStyle: options.borderCapStyle, + borderDash: options.borderDash, + borderDashOffset: options.borderDashOffset, + borderJoinStyle: options.borderJoinStyle, + borderWidth: options.borderWidth, + borderColor: options.borderColor + }; } function styleChanged(style, prevStyle) { - return prevStyle && JSON.stringify(style) !== JSON.stringify(prevStyle); + return prevStyle && JSON.stringify(style) !== JSON.stringify(prevStyle); } var helpers = /*#__PURE__*/Object.freeze({ @@ -2719,12 +3390,13 @@ toDimension: toDimension, callback: callback, each: each, _elementsEqual: _elementsEqual, -clone: clone, +clone: clone$1, _merger: _merger, merge: merge, mergeIf: mergeIf, _mergerIf: _mergerIf, _deprecated: _deprecated, +_splitKey: _splitKey, resolveObjectKey: resolveObjectKey, _capitalize: _capitalize, defined: defined, @@ -2737,6 +3409,7 @@ _longestText: _longestText, _alignPixel: _alignPixel, clearCanvas: clearCanvas, drawPoint: drawPoint, +drawPointLegend: drawPointLegend, _isPointInArea: _isPointInArea, clipArea: clipArea, unclipArea: unclipArea, @@ -2773,6 +3446,8 @@ debounce: debounce, _toLeftRightCenter: _toLeftRightCenter, _alignStartEnd: _alignStartEnd, _textX: _textX, +_getStartAndCountOfVisiblePoints: _getStartAndCountOfVisiblePoints, +_scaleRangesChanged: _scaleRangesChanged, _pointInLine: _pointInLine, _steppedInterpolation: _steppedInterpolation, _bezierInterpolation: _bezierInterpolation, @@ -2796,10 +3471,10 @@ QUARTER_PI: QUARTER_PI, TWO_THIRDS_PI: TWO_THIRDS_PI, log10: log10, sign: sign, +almostEquals: almostEquals, niceNum: niceNum, _factorize: _factorize, isNumber: isNumber, -almostEquals: almostEquals, almostWhole: almostWhole, _setMinAndMaxByKey: _setMinAndMaxByKey, toRadians: toRadians, @@ -2822,781 +3497,846 @@ _computeSegments: _computeSegments }); function binarySearch(metaset, axis, value, intersect) { - const {controller, data, _sorted} = metaset; - const iScale = controller._cachedMeta.iScale; - if (iScale && axis === iScale.axis && axis !== 'r' && _sorted && data.length) { - const lookupMethod = iScale._reversePixels ? _rlookupByKey : _lookupByKey; - if (!intersect) { - return lookupMethod(data, axis, value); - } else if (controller._sharedOptions) { - const el = data[0]; - const range = typeof el.getRange === 'function' && el.getRange(axis); - if (range) { - const start = lookupMethod(data, axis, value - range); - const end = lookupMethod(data, axis, value + range); - return {lo: start.lo, hi: end.hi}; - } + const { controller , data , _sorted } = metaset; + const iScale = controller._cachedMeta.iScale; + if (iScale && axis === iScale.axis && axis !== 'r' && _sorted && data.length) { + const lookupMethod = iScale._reversePixels ? _rlookupByKey : _lookupByKey; + if (!intersect) { + return lookupMethod(data, axis, value); + } else if (controller._sharedOptions) { + const el = data[0]; + const range = typeof el.getRange === 'function' && el.getRange(axis); + if (range) { + const start = lookupMethod(data, axis, value - range); + const end = lookupMethod(data, axis, value + range); + return { + lo: start.lo, + hi: end.hi + }; + } + } } - } - return {lo: 0, hi: data.length - 1}; + return { + lo: 0, + hi: data.length - 1 + }; } -function evaluateInteractionItems(chart, axis, position, handler, intersect) { - const metasets = chart.getSortedVisibleDatasetMetas(); - const value = position[axis]; - for (let i = 0, ilen = metasets.length; i < ilen; ++i) { - const {index, data} = metasets[i]; - const {lo, hi} = binarySearch(metasets[i], axis, value, intersect); - for (let j = lo; j <= hi; ++j) { - const element = data[j]; - if (!element.skip) { - handler(element, index, j); - } + function evaluateInteractionItems(chart, axis, position, handler, intersect) { + const metasets = chart.getSortedVisibleDatasetMetas(); + const value = position[axis]; + for(let i = 0, ilen = metasets.length; i < ilen; ++i){ + const { index , data } = metasets[i]; + const { lo , hi } = binarySearch(metasets[i], axis, value, intersect); + for(let j = lo; j <= hi; ++j){ + const element = data[j]; + if (!element.skip) { + handler(element, index, j); + } + } } - } } -function getDistanceMetricForAxis(axis) { - const useX = axis.indexOf('x') !== -1; - const useY = axis.indexOf('y') !== -1; - return function(pt1, pt2) { - const deltaX = useX ? Math.abs(pt1.x - pt2.x) : 0; - const deltaY = useY ? Math.abs(pt1.y - pt2.y) : 0; - return Math.sqrt(Math.pow(deltaX, 2) + Math.pow(deltaY, 2)); - }; + function getDistanceMetricForAxis(axis) { + const useX = axis.indexOf('x') !== -1; + const useY = axis.indexOf('y') !== -1; + return function(pt1, pt2) { + const deltaX = useX ? Math.abs(pt1.x - pt2.x) : 0; + const deltaY = useY ? Math.abs(pt1.y - pt2.y) : 0; + return Math.sqrt(Math.pow(deltaX, 2) + Math.pow(deltaY, 2)); + }; } -function getIntersectItems(chart, position, axis, useFinalPosition, includeInvisible) { - const items = []; - if (!includeInvisible && !chart.isPointInArea(position)) { + function getIntersectItems(chart, position, axis, useFinalPosition, includeInvisible) { + const items = []; + if (!includeInvisible && !chart.isPointInArea(position)) { + return items; + } + const evaluationFunc = function(element, datasetIndex, index) { + if (!includeInvisible && !_isPointInArea(element, chart.chartArea, 0)) { + return; + } + if (element.inRange(position.x, position.y, useFinalPosition)) { + items.push({ + element, + datasetIndex, + index + }); + } + }; + evaluateInteractionItems(chart, axis, position, evaluationFunc, true); return items; - } - const evaluationFunc = function(element, datasetIndex, index) { - if (!includeInvisible && !_isPointInArea(element, chart.chartArea, 0)) { - return; - } - if (element.inRange(position.x, position.y, useFinalPosition)) { - items.push({element, datasetIndex, index}); - } - }; - evaluateInteractionItems(chart, axis, position, evaluationFunc, true); - return items; } -function getNearestRadialItems(chart, position, axis, useFinalPosition) { - let items = []; - function evaluationFunc(element, datasetIndex, index) { - const {startAngle, endAngle} = element.getProps(['startAngle', 'endAngle'], useFinalPosition); - const {angle} = getAngleFromPoint(element, {x: position.x, y: position.y}); - if (_angleBetween(angle, startAngle, endAngle)) { - items.push({element, datasetIndex, index}); + function getNearestRadialItems(chart, position, axis, useFinalPosition) { + let items = []; + function evaluationFunc(element, datasetIndex, index) { + const { startAngle , endAngle } = element.getProps([ + 'startAngle', + 'endAngle' + ], useFinalPosition); + const { angle } = getAngleFromPoint(element, { + x: position.x, + y: position.y + }); + if (_angleBetween(angle, startAngle, endAngle)) { + items.push({ + element, + datasetIndex, + index + }); + } } - } - evaluateInteractionItems(chart, axis, position, evaluationFunc); - return items; + evaluateInteractionItems(chart, axis, position, evaluationFunc); + return items; } -function getNearestCartesianItems(chart, position, axis, intersect, useFinalPosition, includeInvisible) { - let items = []; - const distanceMetric = getDistanceMetricForAxis(axis); - let minDistance = Number.POSITIVE_INFINITY; - function evaluationFunc(element, datasetIndex, index) { - const inRange = element.inRange(position.x, position.y, useFinalPosition); - if (intersect && !inRange) { - return; + function getNearestCartesianItems(chart, position, axis, intersect, useFinalPosition, includeInvisible) { + let items = []; + const distanceMetric = getDistanceMetricForAxis(axis); + let minDistance = Number.POSITIVE_INFINITY; + function evaluationFunc(element, datasetIndex, index) { + const inRange = element.inRange(position.x, position.y, useFinalPosition); + if (intersect && !inRange) { + return; + } + const center = element.getCenterPoint(useFinalPosition); + const pointInArea = !!includeInvisible || chart.isPointInArea(center); + if (!pointInArea && !inRange) { + return; + } + const distance = distanceMetric(position, center); + if (distance < minDistance) { + items = [ + { + element, + datasetIndex, + index + } + ]; + minDistance = distance; + } else if (distance === minDistance) { + items.push({ + element, + datasetIndex, + index + }); + } } - const center = element.getCenterPoint(useFinalPosition); - const pointInArea = !!includeInvisible || chart.isPointInArea(center); - if (!pointInArea && !inRange) { - return; - } - const distance = distanceMetric(position, center); - if (distance < minDistance) { - items = [{element, datasetIndex, index}]; - minDistance = distance; - } else if (distance === minDistance) { - items.push({element, datasetIndex, index}); - } - } - evaluateInteractionItems(chart, axis, position, evaluationFunc); - return items; + evaluateInteractionItems(chart, axis, position, evaluationFunc); + return items; } -function getNearestItems(chart, position, axis, intersect, useFinalPosition, includeInvisible) { - if (!includeInvisible && !chart.isPointInArea(position)) { - return []; - } - return axis === 'r' && !intersect - ? getNearestRadialItems(chart, position, axis, useFinalPosition) - : getNearestCartesianItems(chart, position, axis, intersect, useFinalPosition, includeInvisible); -} -function getAxisItems(chart, position, axis, intersect, useFinalPosition) { - const items = []; - const rangeMethod = axis === 'x' ? 'inXRange' : 'inYRange'; - let intersectsItem = false; - evaluateInteractionItems(chart, axis, position, (element, datasetIndex, index) => { - if (element[rangeMethod](position[axis], useFinalPosition)) { - items.push({element, datasetIndex, index}); - intersectsItem = intersectsItem || element.inRange(position.x, position.y, useFinalPosition); - } - }); - if (intersect && !intersectsItem) { - return []; - } - return items; -} -var Interaction = { - evaluateInteractionItems, - modes: { - index(chart, e, options, useFinalPosition) { - const position = getRelativePosition(e, chart); - const axis = options.axis || 'x'; - const includeInvisible = options.includeInvisible || false; - const items = options.intersect - ? getIntersectItems(chart, position, axis, useFinalPosition, includeInvisible) - : getNearestItems(chart, position, axis, false, useFinalPosition, includeInvisible); - const elements = []; - if (!items.length) { + function getNearestItems(chart, position, axis, intersect, useFinalPosition, includeInvisible) { + if (!includeInvisible && !chart.isPointInArea(position)) { return []; - } - chart.getSortedVisibleDatasetMetas().forEach((meta) => { - const index = items[0].index; - const element = meta.data[index]; - if (element && !element.skip) { - elements.push({element, datasetIndex: meta.index, index}); - } - }); - return elements; - }, - dataset(chart, e, options, useFinalPosition) { - const position = getRelativePosition(e, chart); - const axis = options.axis || 'xy'; - const includeInvisible = options.includeInvisible || false; - let items = options.intersect - ? getIntersectItems(chart, position, axis, useFinalPosition, includeInvisible) : - getNearestItems(chart, position, axis, false, useFinalPosition, includeInvisible); - if (items.length > 0) { - const datasetIndex = items[0].datasetIndex; - const data = chart.getDatasetMeta(datasetIndex).data; - items = []; - for (let i = 0; i < data.length; ++i) { - items.push({element: data[i], datasetIndex, index: i}); - } - } - return items; - }, - point(chart, e, options, useFinalPosition) { - const position = getRelativePosition(e, chart); - const axis = options.axis || 'xy'; - const includeInvisible = options.includeInvisible || false; - return getIntersectItems(chart, position, axis, useFinalPosition, includeInvisible); - }, - nearest(chart, e, options, useFinalPosition) { - const position = getRelativePosition(e, chart); - const axis = options.axis || 'xy'; - const includeInvisible = options.includeInvisible || false; - return getNearestItems(chart, position, axis, options.intersect, useFinalPosition, includeInvisible); - }, - x(chart, e, options, useFinalPosition) { - const position = getRelativePosition(e, chart); - return getAxisItems(chart, position, 'x', options.intersect, useFinalPosition); - }, - y(chart, e, options, useFinalPosition) { - const position = getRelativePosition(e, chart); - return getAxisItems(chart, position, 'y', options.intersect, useFinalPosition); } - } + return axis === 'r' && !intersect ? getNearestRadialItems(chart, position, axis, useFinalPosition) : getNearestCartesianItems(chart, position, axis, intersect, useFinalPosition, includeInvisible); +} + function getAxisItems(chart, position, axis, intersect, useFinalPosition) { + const items = []; + const rangeMethod = axis === 'x' ? 'inXRange' : 'inYRange'; + let intersectsItem = false; + evaluateInteractionItems(chart, axis, position, (element, datasetIndex, index)=>{ + if (element[rangeMethod](position[axis], useFinalPosition)) { + items.push({ + element, + datasetIndex, + index + }); + intersectsItem = intersectsItem || element.inRange(position.x, position.y, useFinalPosition); + } + }); + if (intersect && !intersectsItem) { + return []; + } + return items; +} + var Interaction = { + evaluateInteractionItems, + modes: { + index (chart, e, options, useFinalPosition) { + const position = getRelativePosition(e, chart); + const axis = options.axis || 'x'; + const includeInvisible = options.includeInvisible || false; + const items = options.intersect ? getIntersectItems(chart, position, axis, useFinalPosition, includeInvisible) : getNearestItems(chart, position, axis, false, useFinalPosition, includeInvisible); + const elements = []; + if (!items.length) { + return []; + } + chart.getSortedVisibleDatasetMetas().forEach((meta)=>{ + const index = items[0].index; + const element = meta.data[index]; + if (element && !element.skip) { + elements.push({ + element, + datasetIndex: meta.index, + index + }); + } + }); + return elements; + }, + dataset (chart, e, options, useFinalPosition) { + const position = getRelativePosition(e, chart); + const axis = options.axis || 'xy'; + const includeInvisible = options.includeInvisible || false; + let items = options.intersect ? getIntersectItems(chart, position, axis, useFinalPosition, includeInvisible) : getNearestItems(chart, position, axis, false, useFinalPosition, includeInvisible); + if (items.length > 0) { + const datasetIndex = items[0].datasetIndex; + const data = chart.getDatasetMeta(datasetIndex).data; + items = []; + for(let i = 0; i < data.length; ++i){ + items.push({ + element: data[i], + datasetIndex, + index: i + }); + } + } + return items; + }, + point (chart, e, options, useFinalPosition) { + const position = getRelativePosition(e, chart); + const axis = options.axis || 'xy'; + const includeInvisible = options.includeInvisible || false; + return getIntersectItems(chart, position, axis, useFinalPosition, includeInvisible); + }, + nearest (chart, e, options, useFinalPosition) { + const position = getRelativePosition(e, chart); + const axis = options.axis || 'xy'; + const includeInvisible = options.includeInvisible || false; + return getNearestItems(chart, position, axis, options.intersect, useFinalPosition, includeInvisible); + }, + x (chart, e, options, useFinalPosition) { + const position = getRelativePosition(e, chart); + return getAxisItems(chart, position, 'x', options.intersect, useFinalPosition); + }, + y (chart, e, options, useFinalPosition) { + const position = getRelativePosition(e, chart); + return getAxisItems(chart, position, 'y', options.intersect, useFinalPosition); + } + } }; -const STATIC_POSITIONS = ['left', 'top', 'right', 'bottom']; +const STATIC_POSITIONS = [ + 'left', + 'top', + 'right', + 'bottom' +]; function filterByPosition(array, position) { - return array.filter(v => v.pos === position); + return array.filter((v)=>v.pos === position); } function filterDynamicPositionByAxis(array, axis) { - return array.filter(v => STATIC_POSITIONS.indexOf(v.pos) === -1 && v.box.axis === axis); + return array.filter((v)=>STATIC_POSITIONS.indexOf(v.pos) === -1 && v.box.axis === axis); } function sortByWeight(array, reverse) { - return array.sort((a, b) => { - const v0 = reverse ? b : a; - const v1 = reverse ? a : b; - return v0.weight === v1.weight ? - v0.index - v1.index : - v0.weight - v1.weight; - }); + return array.sort((a, b)=>{ + const v0 = reverse ? b : a; + const v1 = reverse ? a : b; + return v0.weight === v1.weight ? v0.index - v1.index : v0.weight - v1.weight; + }); } function wrapBoxes(boxes) { - const layoutBoxes = []; - let i, ilen, box, pos, stack, stackWeight; - for (i = 0, ilen = (boxes || []).length; i < ilen; ++i) { - box = boxes[i]; - ({position: pos, options: {stack, stackWeight = 1}} = box); - layoutBoxes.push({ - index: i, - box, - pos, - horizontal: box.isHorizontal(), - weight: box.weight, - stack: stack && (pos + stack), - stackWeight - }); - } - return layoutBoxes; + const layoutBoxes = []; + let i, ilen, box, pos, stack, stackWeight; + for(i = 0, ilen = (boxes || []).length; i < ilen; ++i){ + box = boxes[i]; + ({ position: pos , options: { stack , stackWeight =1 } } = box); + layoutBoxes.push({ + index: i, + box, + pos, + horizontal: box.isHorizontal(), + weight: box.weight, + stack: stack && pos + stack, + stackWeight + }); + } + return layoutBoxes; } function buildStacks(layouts) { - const stacks = {}; - for (const wrap of layouts) { - const {stack, pos, stackWeight} = wrap; - if (!stack || !STATIC_POSITIONS.includes(pos)) { - continue; + const stacks = {}; + for (const wrap of layouts){ + const { stack , pos , stackWeight } = wrap; + if (!stack || !STATIC_POSITIONS.includes(pos)) { + continue; + } + const _stack = stacks[stack] || (stacks[stack] = { + count: 0, + placed: 0, + weight: 0, + size: 0 + }); + _stack.count++; + _stack.weight += stackWeight; } - const _stack = stacks[stack] || (stacks[stack] = {count: 0, placed: 0, weight: 0, size: 0}); - _stack.count++; - _stack.weight += stackWeight; - } - return stacks; + return stacks; } -function setLayoutDims(layouts, params) { - const stacks = buildStacks(layouts); - const {vBoxMaxWidth, hBoxMaxHeight} = params; - let i, ilen, layout; - for (i = 0, ilen = layouts.length; i < ilen; ++i) { - layout = layouts[i]; - const {fullSize} = layout.box; - const stack = stacks[layout.stack]; - const factor = stack && layout.stackWeight / stack.weight; - if (layout.horizontal) { - layout.width = factor ? factor * vBoxMaxWidth : fullSize && params.availableWidth; - layout.height = hBoxMaxHeight; - } else { - layout.width = vBoxMaxWidth; - layout.height = factor ? factor * hBoxMaxHeight : fullSize && params.availableHeight; + function setLayoutDims(layouts, params) { + const stacks = buildStacks(layouts); + const { vBoxMaxWidth , hBoxMaxHeight } = params; + let i, ilen, layout; + for(i = 0, ilen = layouts.length; i < ilen; ++i){ + layout = layouts[i]; + const { fullSize } = layout.box; + const stack = stacks[layout.stack]; + const factor = stack && layout.stackWeight / stack.weight; + if (layout.horizontal) { + layout.width = factor ? factor * vBoxMaxWidth : fullSize && params.availableWidth; + layout.height = hBoxMaxHeight; + } else { + layout.width = vBoxMaxWidth; + layout.height = factor ? factor * hBoxMaxHeight : fullSize && params.availableHeight; + } } - } - return stacks; + return stacks; } function buildLayoutBoxes(boxes) { - const layoutBoxes = wrapBoxes(boxes); - const fullSize = sortByWeight(layoutBoxes.filter(wrap => wrap.box.fullSize), true); - const left = sortByWeight(filterByPosition(layoutBoxes, 'left'), true); - const right = sortByWeight(filterByPosition(layoutBoxes, 'right')); - const top = sortByWeight(filterByPosition(layoutBoxes, 'top'), true); - const bottom = sortByWeight(filterByPosition(layoutBoxes, 'bottom')); - const centerHorizontal = filterDynamicPositionByAxis(layoutBoxes, 'x'); - const centerVertical = filterDynamicPositionByAxis(layoutBoxes, 'y'); - return { - fullSize, - leftAndTop: left.concat(top), - rightAndBottom: right.concat(centerVertical).concat(bottom).concat(centerHorizontal), - chartArea: filterByPosition(layoutBoxes, 'chartArea'), - vertical: left.concat(right).concat(centerVertical), - horizontal: top.concat(bottom).concat(centerHorizontal) - }; + const layoutBoxes = wrapBoxes(boxes); + const fullSize = sortByWeight(layoutBoxes.filter((wrap)=>wrap.box.fullSize), true); + const left = sortByWeight(filterByPosition(layoutBoxes, 'left'), true); + const right = sortByWeight(filterByPosition(layoutBoxes, 'right')); + const top = sortByWeight(filterByPosition(layoutBoxes, 'top'), true); + const bottom = sortByWeight(filterByPosition(layoutBoxes, 'bottom')); + const centerHorizontal = filterDynamicPositionByAxis(layoutBoxes, 'x'); + const centerVertical = filterDynamicPositionByAxis(layoutBoxes, 'y'); + return { + fullSize, + leftAndTop: left.concat(top), + rightAndBottom: right.concat(centerVertical).concat(bottom).concat(centerHorizontal), + chartArea: filterByPosition(layoutBoxes, 'chartArea'), + vertical: left.concat(right).concat(centerVertical), + horizontal: top.concat(bottom).concat(centerHorizontal) + }; } function getCombinedMax(maxPadding, chartArea, a, b) { - return Math.max(maxPadding[a], chartArea[a]) + Math.max(maxPadding[b], chartArea[b]); + return Math.max(maxPadding[a], chartArea[a]) + Math.max(maxPadding[b], chartArea[b]); } function updateMaxPadding(maxPadding, boxPadding) { - maxPadding.top = Math.max(maxPadding.top, boxPadding.top); - maxPadding.left = Math.max(maxPadding.left, boxPadding.left); - maxPadding.bottom = Math.max(maxPadding.bottom, boxPadding.bottom); - maxPadding.right = Math.max(maxPadding.right, boxPadding.right); + maxPadding.top = Math.max(maxPadding.top, boxPadding.top); + maxPadding.left = Math.max(maxPadding.left, boxPadding.left); + maxPadding.bottom = Math.max(maxPadding.bottom, boxPadding.bottom); + maxPadding.right = Math.max(maxPadding.right, boxPadding.right); } function updateDims(chartArea, params, layout, stacks) { - const {pos, box} = layout; - const maxPadding = chartArea.maxPadding; - if (!isObject(pos)) { - if (layout.size) { - chartArea[pos] -= layout.size; + const { pos , box } = layout; + const maxPadding = chartArea.maxPadding; + if (!isObject(pos)) { + if (layout.size) { + chartArea[pos] -= layout.size; + } + const stack = stacks[layout.stack] || { + size: 0, + count: 1 + }; + stack.size = Math.max(stack.size, layout.horizontal ? box.height : box.width); + layout.size = stack.size / stack.count; + chartArea[pos] += layout.size; } - const stack = stacks[layout.stack] || {size: 0, count: 1}; - stack.size = Math.max(stack.size, layout.horizontal ? box.height : box.width); - layout.size = stack.size / stack.count; - chartArea[pos] += layout.size; - } - if (box.getPadding) { - updateMaxPadding(maxPadding, box.getPadding()); - } - const newWidth = Math.max(0, params.outerWidth - getCombinedMax(maxPadding, chartArea, 'left', 'right')); - const newHeight = Math.max(0, params.outerHeight - getCombinedMax(maxPadding, chartArea, 'top', 'bottom')); - const widthChanged = newWidth !== chartArea.w; - const heightChanged = newHeight !== chartArea.h; - chartArea.w = newWidth; - chartArea.h = newHeight; - return layout.horizontal - ? {same: widthChanged, other: heightChanged} - : {same: heightChanged, other: widthChanged}; + if (box.getPadding) { + updateMaxPadding(maxPadding, box.getPadding()); + } + const newWidth = Math.max(0, params.outerWidth - getCombinedMax(maxPadding, chartArea, 'left', 'right')); + const newHeight = Math.max(0, params.outerHeight - getCombinedMax(maxPadding, chartArea, 'top', 'bottom')); + const widthChanged = newWidth !== chartArea.w; + const heightChanged = newHeight !== chartArea.h; + chartArea.w = newWidth; + chartArea.h = newHeight; + return layout.horizontal ? { + same: widthChanged, + other: heightChanged + } : { + same: heightChanged, + other: widthChanged + }; } function handleMaxPadding(chartArea) { - const maxPadding = chartArea.maxPadding; - function updatePos(pos) { - const change = Math.max(maxPadding[pos] - chartArea[pos], 0); - chartArea[pos] += change; - return change; - } - chartArea.y += updatePos('top'); - chartArea.x += updatePos('left'); - updatePos('right'); - updatePos('bottom'); + const maxPadding = chartArea.maxPadding; + function updatePos(pos) { + const change = Math.max(maxPadding[pos] - chartArea[pos], 0); + chartArea[pos] += change; + return change; + } + chartArea.y += updatePos('top'); + chartArea.x += updatePos('left'); + updatePos('right'); + updatePos('bottom'); } function getMargins(horizontal, chartArea) { - const maxPadding = chartArea.maxPadding; - function marginForPositions(positions) { - const margin = {left: 0, top: 0, right: 0, bottom: 0}; - positions.forEach((pos) => { - margin[pos] = Math.max(chartArea[pos], maxPadding[pos]); - }); - return margin; - } - return horizontal - ? marginForPositions(['left', 'right']) - : marginForPositions(['top', 'bottom']); + const maxPadding = chartArea.maxPadding; + function marginForPositions(positions) { + const margin = { + left: 0, + top: 0, + right: 0, + bottom: 0 + }; + positions.forEach((pos)=>{ + margin[pos] = Math.max(chartArea[pos], maxPadding[pos]); + }); + return margin; + } + return horizontal ? marginForPositions([ + 'left', + 'right' + ]) : marginForPositions([ + 'top', + 'bottom' + ]); } function fitBoxes(boxes, chartArea, params, stacks) { - const refitBoxes = []; - let i, ilen, layout, box, refit, changed; - for (i = 0, ilen = boxes.length, refit = 0; i < ilen; ++i) { - layout = boxes[i]; - box = layout.box; - box.update( - layout.width || chartArea.w, - layout.height || chartArea.h, - getMargins(layout.horizontal, chartArea) - ); - const {same, other} = updateDims(chartArea, params, layout, stacks); - refit |= same && refitBoxes.length; - changed = changed || other; - if (!box.fullSize) { - refitBoxes.push(layout); + const refitBoxes = []; + let i, ilen, layout, box, refit, changed; + for(i = 0, ilen = boxes.length, refit = 0; i < ilen; ++i){ + layout = boxes[i]; + box = layout.box; + box.update(layout.width || chartArea.w, layout.height || chartArea.h, getMargins(layout.horizontal, chartArea)); + const { same , other } = updateDims(chartArea, params, layout, stacks); + refit |= same && refitBoxes.length; + changed = changed || other; + if (!box.fullSize) { + refitBoxes.push(layout); + } } - } - return refit && fitBoxes(refitBoxes, chartArea, params, stacks) || changed; + return refit && fitBoxes(refitBoxes, chartArea, params, stacks) || changed; } function setBoxDims(box, left, top, width, height) { - box.top = top; - box.left = left; - box.right = left + width; - box.bottom = top + height; - box.width = width; - box.height = height; + box.top = top; + box.left = left; + box.right = left + width; + box.bottom = top + height; + box.width = width; + box.height = height; } function placeBoxes(boxes, chartArea, params, stacks) { - const userPadding = params.padding; - let {x, y} = chartArea; - for (const layout of boxes) { - const box = layout.box; - const stack = stacks[layout.stack] || {count: 1, placed: 0, weight: 1}; - const weight = (layout.stackWeight / stack.weight) || 1; - if (layout.horizontal) { - const width = chartArea.w * weight; - const height = stack.size || box.height; - if (defined(stack.start)) { - y = stack.start; - } - if (box.fullSize) { - setBoxDims(box, userPadding.left, y, params.outerWidth - userPadding.right - userPadding.left, height); - } else { - setBoxDims(box, chartArea.left + stack.placed, y, width, height); - } - stack.start = y; - stack.placed += width; - y = box.bottom; - } else { - const height = chartArea.h * weight; - const width = stack.size || box.width; - if (defined(stack.start)) { - x = stack.start; - } - if (box.fullSize) { - setBoxDims(box, x, userPadding.top, width, params.outerHeight - userPadding.bottom - userPadding.top); - } else { - setBoxDims(box, x, chartArea.top + stack.placed, width, height); - } - stack.start = x; - stack.placed += height; - x = box.right; - } - } - chartArea.x = x; - chartArea.y = y; -} -defaults.set('layout', { - autoPadding: true, - padding: { - top: 0, - right: 0, - bottom: 0, - left: 0 - } -}); -var layouts = { - addBox(chart, item) { - if (!chart.boxes) { - chart.boxes = []; - } - item.fullSize = item.fullSize || false; - item.position = item.position || 'top'; - item.weight = item.weight || 0; - item._layers = item._layers || function() { - return [{ - z: 0, - draw(chartArea) { - item.draw(chartArea); + const userPadding = params.padding; + let { x , y } = chartArea; + for (const layout of boxes){ + const box = layout.box; + const stack = stacks[layout.stack] || { + count: 1, + placed: 0, + weight: 1 + }; + const weight = layout.stackWeight / stack.weight || 1; + if (layout.horizontal) { + const width = chartArea.w * weight; + const height = stack.size || box.height; + if (defined(stack.start)) { + y = stack.start; + } + if (box.fullSize) { + setBoxDims(box, userPadding.left, y, params.outerWidth - userPadding.right - userPadding.left, height); + } else { + setBoxDims(box, chartArea.left + stack.placed, y, width, height); + } + stack.start = y; + stack.placed += width; + y = box.bottom; + } else { + const height1 = chartArea.h * weight; + const width1 = stack.size || box.width; + if (defined(stack.start)) { + x = stack.start; + } + if (box.fullSize) { + setBoxDims(box, x, userPadding.top, width1, params.outerHeight - userPadding.bottom - userPadding.top); + } else { + setBoxDims(box, x, chartArea.top + stack.placed, width1, height1); + } + stack.start = x; + stack.placed += height1; + x = box.right; } - }]; - }; - chart.boxes.push(item); - }, - removeBox(chart, layoutItem) { - const index = chart.boxes ? chart.boxes.indexOf(layoutItem) : -1; - if (index !== -1) { - chart.boxes.splice(index, 1); } - }, - configure(chart, item, options) { - item.fullSize = options.fullSize; - item.position = options.position; - item.weight = options.weight; - }, - update(chart, width, height, minPadding) { - if (!chart) { - return; + chartArea.x = x; + chartArea.y = y; +} +var layouts = { + addBox (chart, item) { + if (!chart.boxes) { + chart.boxes = []; + } + item.fullSize = item.fullSize || false; + item.position = item.position || 'top'; + item.weight = item.weight || 0; + item._layers = item._layers || function() { + return [ + { + z: 0, + draw (chartArea) { + item.draw(chartArea); + } + } + ]; + }; + chart.boxes.push(item); + }, + removeBox (chart, layoutItem) { + const index = chart.boxes ? chart.boxes.indexOf(layoutItem) : -1; + if (index !== -1) { + chart.boxes.splice(index, 1); + } + }, + configure (chart, item, options) { + item.fullSize = options.fullSize; + item.position = options.position; + item.weight = options.weight; + }, + update (chart, width, height, minPadding) { + if (!chart) { + return; + } + const padding = toPadding(chart.options.layout.padding); + const availableWidth = Math.max(width - padding.width, 0); + const availableHeight = Math.max(height - padding.height, 0); + const boxes = buildLayoutBoxes(chart.boxes); + const verticalBoxes = boxes.vertical; + const horizontalBoxes = boxes.horizontal; + each(chart.boxes, (box)=>{ + if (typeof box.beforeLayout === 'function') { + box.beforeLayout(); + } + }); + const visibleVerticalBoxCount = verticalBoxes.reduce((total, wrap)=>wrap.box.options && wrap.box.options.display === false ? total : total + 1, 0) || 1; + const params = Object.freeze({ + outerWidth: width, + outerHeight: height, + padding, + availableWidth, + availableHeight, + vBoxMaxWidth: availableWidth / 2 / visibleVerticalBoxCount, + hBoxMaxHeight: availableHeight / 2 + }); + const maxPadding = Object.assign({}, padding); + updateMaxPadding(maxPadding, toPadding(minPadding)); + const chartArea = Object.assign({ + maxPadding, + w: availableWidth, + h: availableHeight, + x: padding.left, + y: padding.top + }, padding); + const stacks = setLayoutDims(verticalBoxes.concat(horizontalBoxes), params); + fitBoxes(boxes.fullSize, chartArea, params, stacks); + fitBoxes(verticalBoxes, chartArea, params, stacks); + if (fitBoxes(horizontalBoxes, chartArea, params, stacks)) { + fitBoxes(verticalBoxes, chartArea, params, stacks); + } + handleMaxPadding(chartArea); + placeBoxes(boxes.leftAndTop, chartArea, params, stacks); + chartArea.x += chartArea.w; + chartArea.y += chartArea.h; + placeBoxes(boxes.rightAndBottom, chartArea, params, stacks); + chart.chartArea = { + left: chartArea.left, + top: chartArea.top, + right: chartArea.left + chartArea.w, + bottom: chartArea.top + chartArea.h, + height: chartArea.h, + width: chartArea.w + }; + each(boxes.chartArea, (layout)=>{ + const box = layout.box; + Object.assign(box, chart.chartArea); + box.update(chartArea.w, chartArea.h, { + left: 0, + top: 0, + right: 0, + bottom: 0 + }); + }); } - const padding = toPadding(chart.options.layout.padding); - const availableWidth = Math.max(width - padding.width, 0); - const availableHeight = Math.max(height - padding.height, 0); - const boxes = buildLayoutBoxes(chart.boxes); - const verticalBoxes = boxes.vertical; - const horizontalBoxes = boxes.horizontal; - each(chart.boxes, box => { - if (typeof box.beforeLayout === 'function') { - box.beforeLayout(); - } - }); - const visibleVerticalBoxCount = verticalBoxes.reduce((total, wrap) => - wrap.box.options && wrap.box.options.display === false ? total : total + 1, 0) || 1; - const params = Object.freeze({ - outerWidth: width, - outerHeight: height, - padding, - availableWidth, - availableHeight, - vBoxMaxWidth: availableWidth / 2 / visibleVerticalBoxCount, - hBoxMaxHeight: availableHeight / 2 - }); - const maxPadding = Object.assign({}, padding); - updateMaxPadding(maxPadding, toPadding(minPadding)); - const chartArea = Object.assign({ - maxPadding, - w: availableWidth, - h: availableHeight, - x: padding.left, - y: padding.top - }, padding); - const stacks = setLayoutDims(verticalBoxes.concat(horizontalBoxes), params); - fitBoxes(boxes.fullSize, chartArea, params, stacks); - fitBoxes(verticalBoxes, chartArea, params, stacks); - if (fitBoxes(horizontalBoxes, chartArea, params, stacks)) { - fitBoxes(verticalBoxes, chartArea, params, stacks); - } - handleMaxPadding(chartArea); - placeBoxes(boxes.leftAndTop, chartArea, params, stacks); - chartArea.x += chartArea.w; - chartArea.y += chartArea.h; - placeBoxes(boxes.rightAndBottom, chartArea, params, stacks); - chart.chartArea = { - left: chartArea.left, - top: chartArea.top, - right: chartArea.left + chartArea.w, - bottom: chartArea.top + chartArea.h, - height: chartArea.h, - width: chartArea.w, - }; - each(boxes.chartArea, (layout) => { - const box = layout.box; - Object.assign(box, chart.chartArea); - box.update(chartArea.w, chartArea.h, {left: 0, top: 0, right: 0, bottom: 0}); - }); - } }; class BasePlatform { - acquireContext(canvas, aspectRatio) {} - releaseContext(context) { - return false; - } - addEventListener(chart, type, listener) {} - removeEventListener(chart, type, listener) {} - getDevicePixelRatio() { - return 1; - } - getMaximumSize(element, width, height, aspectRatio) { - width = Math.max(0, width || element.width); - height = height || element.height; - return { - width, - height: Math.max(0, aspectRatio ? Math.floor(width / aspectRatio) : height) - }; - } - isAttached(canvas) { - return true; - } - updateConfig(config) { - } + acquireContext(canvas, aspectRatio) {} + releaseContext(context) { + return false; + } + addEventListener(chart, type, listener) {} + removeEventListener(chart, type, listener) {} + getDevicePixelRatio() { + return 1; + } + getMaximumSize(element, width, height, aspectRatio) { + width = Math.max(0, width || element.width); + height = height || element.height; + return { + width, + height: Math.max(0, aspectRatio ? Math.floor(width / aspectRatio) : height) + }; + } + isAttached(canvas) { + return true; + } + updateConfig(config) { + } } class BasicPlatform extends BasePlatform { - acquireContext(item) { - return item && item.getContext && item.getContext('2d') || null; - } - updateConfig(config) { - config.options.animation = false; - } + acquireContext(item) { + return item && item.getContext && item.getContext('2d') || null; + } + updateConfig(config) { + config.options.animation = false; + } } const EXPANDO_KEY = '$chartjs'; -const EVENT_TYPES = { - touchstart: 'mousedown', - touchmove: 'mousemove', - touchend: 'mouseup', - pointerenter: 'mouseenter', - pointerdown: 'mousedown', - pointermove: 'mousemove', - pointerup: 'mouseup', - pointerleave: 'mouseout', - pointerout: 'mouseout' + const EVENT_TYPES = { + touchstart: 'mousedown', + touchmove: 'mousemove', + touchend: 'mouseup', + pointerenter: 'mouseenter', + pointerdown: 'mousedown', + pointermove: 'mousemove', + pointerup: 'mouseup', + pointerleave: 'mouseout', + pointerout: 'mouseout' }; -const isNullOrEmpty = value => value === null || value === ''; -function initCanvas(canvas, aspectRatio) { - const style = canvas.style; - const renderHeight = canvas.getAttribute('height'); - const renderWidth = canvas.getAttribute('width'); - canvas[EXPANDO_KEY] = { - initial: { - height: renderHeight, - width: renderWidth, - style: { - display: style.display, - height: style.height, - width: style.width - } +const isNullOrEmpty = (value)=>value === null || value === ''; + function initCanvas(canvas, aspectRatio) { + const style = canvas.style; + const renderHeight = canvas.getAttribute('height'); + const renderWidth = canvas.getAttribute('width'); + canvas[EXPANDO_KEY] = { + initial: { + height: renderHeight, + width: renderWidth, + style: { + display: style.display, + height: style.height, + width: style.width + } + } + }; + style.display = style.display || 'block'; + style.boxSizing = style.boxSizing || 'border-box'; + if (isNullOrEmpty(renderWidth)) { + const displayWidth = readUsedSize(canvas, 'width'); + if (displayWidth !== undefined) { + canvas.width = displayWidth; + } } - }; - style.display = style.display || 'block'; - style.boxSizing = style.boxSizing || 'border-box'; - if (isNullOrEmpty(renderWidth)) { - const displayWidth = readUsedSize(canvas, 'width'); - if (displayWidth !== undefined) { - canvas.width = displayWidth; + if (isNullOrEmpty(renderHeight)) { + if (canvas.style.height === '') { + canvas.height = canvas.width / (aspectRatio || 2); + } else { + const displayHeight = readUsedSize(canvas, 'height'); + if (displayHeight !== undefined) { + canvas.height = displayHeight; + } + } } - } - if (isNullOrEmpty(renderHeight)) { - if (canvas.style.height === '') { - canvas.height = canvas.width / (aspectRatio || 2); - } else { - const displayHeight = readUsedSize(canvas, 'height'); - if (displayHeight !== undefined) { - canvas.height = displayHeight; - } - } - } - return canvas; + return canvas; } -const eventListenerOptions = supportsEventListenerOptions ? {passive: true} : false; +const eventListenerOptions = supportsEventListenerOptions ? { + passive: true +} : false; function addListener(node, type, listener) { - node.addEventListener(type, listener, eventListenerOptions); + node.addEventListener(type, listener, eventListenerOptions); } function removeListener(chart, type, listener) { - chart.canvas.removeEventListener(type, listener, eventListenerOptions); + chart.canvas.removeEventListener(type, listener, eventListenerOptions); } function fromNativeEvent(event, chart) { - const type = EVENT_TYPES[event.type] || event.type; - const {x, y} = getRelativePosition(event, chart); - return { - type, - chart, - native: event, - x: x !== undefined ? x : null, - y: y !== undefined ? y : null, - }; + const type = EVENT_TYPES[event.type] || event.type; + const { x , y } = getRelativePosition(event, chart); + return { + type, + chart, + native: event, + x: x !== undefined ? x : null, + y: y !== undefined ? y : null + }; } function nodeListContains(nodeList, canvas) { - for (const node of nodeList) { - if (node === canvas || node.contains(canvas)) { - return true; + for (const node of nodeList){ + if (node === canvas || node.contains(canvas)) { + return true; + } } - } } function createAttachObserver(chart, type, listener) { - const canvas = chart.canvas; - const observer = new MutationObserver(entries => { - let trigger = false; - for (const entry of entries) { - trigger = trigger || nodeListContains(entry.addedNodes, canvas); - trigger = trigger && !nodeListContains(entry.removedNodes, canvas); - } - if (trigger) { - listener(); - } - }); - observer.observe(document, {childList: true, subtree: true}); - return observer; + const canvas = chart.canvas; + const observer = new MutationObserver((entries)=>{ + let trigger = false; + for (const entry of entries){ + trigger = trigger || nodeListContains(entry.addedNodes, canvas); + trigger = trigger && !nodeListContains(entry.removedNodes, canvas); + } + if (trigger) { + listener(); + } + }); + observer.observe(document, { + childList: true, + subtree: true + }); + return observer; } function createDetachObserver(chart, type, listener) { - const canvas = chart.canvas; - const observer = new MutationObserver(entries => { - let trigger = false; - for (const entry of entries) { - trigger = trigger || nodeListContains(entry.removedNodes, canvas); - trigger = trigger && !nodeListContains(entry.addedNodes, canvas); - } - if (trigger) { - listener(); - } - }); - observer.observe(document, {childList: true, subtree: true}); - return observer; + const canvas = chart.canvas; + const observer = new MutationObserver((entries)=>{ + let trigger = false; + for (const entry of entries){ + trigger = trigger || nodeListContains(entry.removedNodes, canvas); + trigger = trigger && !nodeListContains(entry.addedNodes, canvas); + } + if (trigger) { + listener(); + } + }); + observer.observe(document, { + childList: true, + subtree: true + }); + return observer; } const drpListeningCharts = new Map(); let oldDevicePixelRatio = 0; function onWindowResize() { - const dpr = window.devicePixelRatio; - if (dpr === oldDevicePixelRatio) { - return; - } - oldDevicePixelRatio = dpr; - drpListeningCharts.forEach((resize, chart) => { - if (chart.currentDevicePixelRatio !== dpr) { - resize(); + const dpr = window.devicePixelRatio; + if (dpr === oldDevicePixelRatio) { + return; } - }); + oldDevicePixelRatio = dpr; + drpListeningCharts.forEach((resize, chart)=>{ + if (chart.currentDevicePixelRatio !== dpr) { + resize(); + } + }); } function listenDevicePixelRatioChanges(chart, resize) { - if (!drpListeningCharts.size) { - window.addEventListener('resize', onWindowResize); - } - drpListeningCharts.set(chart, resize); + if (!drpListeningCharts.size) { + window.addEventListener('resize', onWindowResize); + } + drpListeningCharts.set(chart, resize); } function unlistenDevicePixelRatioChanges(chart) { - drpListeningCharts.delete(chart); - if (!drpListeningCharts.size) { - window.removeEventListener('resize', onWindowResize); - } + drpListeningCharts.delete(chart); + if (!drpListeningCharts.size) { + window.removeEventListener('resize', onWindowResize); + } } function createResizeObserver(chart, type, listener) { - const canvas = chart.canvas; - const container = canvas && _getParentNode(canvas); - if (!container) { - return; - } - const resize = throttled((width, height) => { - const w = container.clientWidth; - listener(width, height); - if (w < container.clientWidth) { - listener(); + const canvas = chart.canvas; + const container = canvas && _getParentNode(canvas); + if (!container) { + return; } - }, window); - const observer = new ResizeObserver(entries => { - const entry = entries[0]; - const width = entry.contentRect.width; - const height = entry.contentRect.height; - if (width === 0 && height === 0) { - return; - } - resize(width, height); - }); - observer.observe(container); - listenDevicePixelRatioChanges(chart, resize); - return observer; + const resize = throttled((width, height)=>{ + const w = container.clientWidth; + listener(width, height); + if (w < container.clientWidth) { + listener(); + } + }, window); + const observer = new ResizeObserver((entries)=>{ + const entry = entries[0]; + const width = entry.contentRect.width; + const height = entry.contentRect.height; + if (width === 0 && height === 0) { + return; + } + resize(width, height); + }); + observer.observe(container); + listenDevicePixelRatioChanges(chart, resize); + return observer; } function releaseObserver(chart, type, observer) { - if (observer) { - observer.disconnect(); - } - if (type === 'resize') { - unlistenDevicePixelRatioChanges(chart); - } + if (observer) { + observer.disconnect(); + } + if (type === 'resize') { + unlistenDevicePixelRatioChanges(chart); + } } function createProxyAndListen(chart, type, listener) { - const canvas = chart.canvas; - const proxy = throttled((event) => { - if (chart.ctx !== null) { - listener(fromNativeEvent(event, chart)); - } - }, chart, (args) => { - const event = args[0]; - return [event, event.offsetX, event.offsetY]; - }); - addListener(canvas, type, proxy); - return proxy; + const canvas = chart.canvas; + const proxy = throttled((event)=>{ + if (chart.ctx !== null) { + listener(fromNativeEvent(event, chart)); + } + }, chart); + addListener(canvas, type, proxy); + return proxy; } -class DomPlatform extends BasePlatform { - acquireContext(canvas, aspectRatio) { - const context = canvas && canvas.getContext && canvas.getContext('2d'); - if (context && context.canvas === canvas) { - initCanvas(canvas, aspectRatio); - return context; + class DomPlatform extends BasePlatform { + acquireContext(canvas, aspectRatio) { + const context = canvas && canvas.getContext && canvas.getContext('2d'); + if (context && context.canvas === canvas) { + initCanvas(canvas, aspectRatio); + return context; + } + return null; } - return null; - } - releaseContext(context) { - const canvas = context.canvas; - if (!canvas[EXPANDO_KEY]) { - return false; + releaseContext(context) { + const canvas = context.canvas; + if (!canvas[EXPANDO_KEY]) { + return false; + } + const initial = canvas[EXPANDO_KEY].initial; + [ + 'height', + 'width' + ].forEach((prop)=>{ + const value = initial[prop]; + if (isNullOrUndef(value)) { + canvas.removeAttribute(prop); + } else { + canvas.setAttribute(prop, value); + } + }); + const style = initial.style || {}; + Object.keys(style).forEach((key)=>{ + canvas.style[key] = style[key]; + }); + canvas.width = canvas.width; + delete canvas[EXPANDO_KEY]; + return true; } - const initial = canvas[EXPANDO_KEY].initial; - ['height', 'width'].forEach((prop) => { - const value = initial[prop]; - if (isNullOrUndef(value)) { - canvas.removeAttribute(prop); - } else { - canvas.setAttribute(prop, value); - } - }); - const style = initial.style || {}; - Object.keys(style).forEach((key) => { - canvas.style[key] = style[key]; - }); - canvas.width = canvas.width; - delete canvas[EXPANDO_KEY]; - return true; - } - addEventListener(chart, type, listener) { - this.removeEventListener(chart, type); - const proxies = chart.$proxies || (chart.$proxies = {}); - const handlers = { - attach: createAttachObserver, - detach: createDetachObserver, - resize: createResizeObserver - }; - const handler = handlers[type] || createProxyAndListen; - proxies[type] = handler(chart, type, listener); - } - removeEventListener(chart, type) { - const proxies = chart.$proxies || (chart.$proxies = {}); - const proxy = proxies[type]; - if (!proxy) { - return; + addEventListener(chart, type, listener) { + this.removeEventListener(chart, type); + const proxies = chart.$proxies || (chart.$proxies = {}); + const handlers = { + attach: createAttachObserver, + detach: createDetachObserver, + resize: createResizeObserver + }; + const handler = handlers[type] || createProxyAndListen; + proxies[type] = handler(chart, type, listener); + } + removeEventListener(chart, type) { + const proxies = chart.$proxies || (chart.$proxies = {}); + const proxy = proxies[type]; + if (!proxy) { + return; + } + const handlers = { + attach: releaseObserver, + detach: releaseObserver, + resize: releaseObserver + }; + const handler = handlers[type] || removeListener; + handler(chart, type, proxy); + proxies[type] = undefined; + } + getDevicePixelRatio() { + return window.devicePixelRatio; + } + getMaximumSize(canvas, width, height, aspectRatio) { + return getMaximumSize(canvas, width, height, aspectRatio); + } + isAttached(canvas) { + const container = _getParentNode(canvas); + return !!(container && container.isConnected); } - const handlers = { - attach: releaseObserver, - detach: releaseObserver, - resize: releaseObserver - }; - const handler = handlers[type] || removeListener; - handler(chart, type, proxy); - proxies[type] = undefined; - } - getDevicePixelRatio() { - return window.devicePixelRatio; - } - getMaximumSize(canvas, width, height, aspectRatio) { - return getMaximumSize(canvas, width, height, aspectRatio); - } - isAttached(canvas) { - const container = _getParentNode(canvas); - return !!(container && container.isConnected); - } } function _detectPlatform(canvas) { - if (!_isDomSupported() || (typeof OffscreenCanvas !== 'undefined' && canvas instanceof OffscreenCanvas)) { - return BasicPlatform; - } - return DomPlatform; + if (!_isDomSupported() || typeof OffscreenCanvas !== 'undefined' && canvas instanceof OffscreenCanvas) { + return BasicPlatform; + } + return DomPlatform; } var platforms = /*#__PURE__*/Object.freeze({ @@ -3609,5248 +4349,5381 @@ DomPlatform: DomPlatform const transparent = 'transparent'; const interpolators = { - boolean(from, to, factor) { - return factor > 0.5 ? to : from; - }, - color(from, to, factor) { - const c0 = color(from || transparent); - const c1 = c0.valid && color(to || transparent); - return c1 && c1.valid - ? c1.mix(c0, factor).hexString() - : to; - }, - number(from, to, factor) { - return from + (to - from) * factor; - } + boolean (from, to, factor) { + return factor > 0.5 ? to : from; + }, + color (from, to, factor) { + const c0 = color(from || transparent); + const c1 = c0.valid && color(to || transparent); + return c1 && c1.valid ? c1.mix(c0, factor).hexString() : to; + }, + number (from, to, factor) { + return from + (to - from) * factor; + } }; class Animation { - constructor(cfg, target, prop, to) { - const currentValue = target[prop]; - to = resolve([cfg.to, to, currentValue, cfg.from]); - const from = resolve([cfg.from, currentValue, to]); - this._active = true; - this._fn = cfg.fn || interpolators[cfg.type || typeof from]; - this._easing = effects[cfg.easing] || effects.linear; - this._start = Math.floor(Date.now() + (cfg.delay || 0)); - this._duration = this._total = Math.floor(cfg.duration); - this._loop = !!cfg.loop; - this._target = target; - this._prop = prop; - this._from = from; - this._to = to; - this._promises = undefined; - } - active() { - return this._active; - } - update(cfg, to, date) { - if (this._active) { - this._notify(false); - const currentValue = this._target[this._prop]; - const elapsed = date - this._start; - const remain = this._duration - elapsed; - this._start = date; - this._duration = Math.floor(Math.max(remain, cfg.duration)); - this._total += elapsed; - this._loop = !!cfg.loop; - this._to = resolve([cfg.to, to, currentValue, cfg.from]); - this._from = resolve([cfg.from, currentValue, to]); + constructor(cfg, target, prop, to){ + const currentValue = target[prop]; + to = resolve([ + cfg.to, + to, + currentValue, + cfg.from + ]); + const from = resolve([ + cfg.from, + currentValue, + to + ]); + this._active = true; + this._fn = cfg.fn || interpolators[cfg.type || typeof from]; + this._easing = effects[cfg.easing] || effects.linear; + this._start = Math.floor(Date.now() + (cfg.delay || 0)); + this._duration = this._total = Math.floor(cfg.duration); + this._loop = !!cfg.loop; + this._target = target; + this._prop = prop; + this._from = from; + this._to = to; + this._promises = undefined; } - } - cancel() { - if (this._active) { - this.tick(Date.now()); - this._active = false; - this._notify(false); + active() { + return this._active; } - } - tick(date) { - const elapsed = date - this._start; - const duration = this._duration; - const prop = this._prop; - const from = this._from; - const loop = this._loop; - const to = this._to; - let factor; - this._active = from !== to && (loop || (elapsed < duration)); - if (!this._active) { - this._target[prop] = to; - this._notify(true); - return; + update(cfg, to, date) { + if (this._active) { + this._notify(false); + const currentValue = this._target[this._prop]; + const elapsed = date - this._start; + const remain = this._duration - elapsed; + this._start = date; + this._duration = Math.floor(Math.max(remain, cfg.duration)); + this._total += elapsed; + this._loop = !!cfg.loop; + this._to = resolve([ + cfg.to, + to, + currentValue, + cfg.from + ]); + this._from = resolve([ + cfg.from, + currentValue, + to + ]); + } } - if (elapsed < 0) { - this._target[prop] = from; - return; + cancel() { + if (this._active) { + this.tick(Date.now()); + this._active = false; + this._notify(false); + } } - factor = (elapsed / duration) % 2; - factor = loop && factor > 1 ? 2 - factor : factor; - factor = this._easing(Math.min(1, Math.max(0, factor))); - this._target[prop] = this._fn(from, to, factor); - } - wait() { - const promises = this._promises || (this._promises = []); - return new Promise((res, rej) => { - promises.push({res, rej}); - }); - } - _notify(resolved) { - const method = resolved ? 'res' : 'rej'; - const promises = this._promises || []; - for (let i = 0; i < promises.length; i++) { - promises[i][method](); + tick(date) { + const elapsed = date - this._start; + const duration = this._duration; + const prop = this._prop; + const from = this._from; + const loop = this._loop; + const to = this._to; + let factor; + this._active = from !== to && (loop || elapsed < duration); + if (!this._active) { + this._target[prop] = to; + this._notify(true); + return; + } + if (elapsed < 0) { + this._target[prop] = from; + return; + } + factor = elapsed / duration % 2; + factor = loop && factor > 1 ? 2 - factor : factor; + factor = this._easing(Math.min(1, Math.max(0, factor))); + this._target[prop] = this._fn(from, to, factor); + } + wait() { + const promises = this._promises || (this._promises = []); + return new Promise((res, rej)=>{ + promises.push({ + res, + rej + }); + }); + } + _notify(resolved) { + const method = resolved ? 'res' : 'rej'; + const promises = this._promises || []; + for(let i = 0; i < promises.length; i++){ + promises[i][method](); + } } - } } -const numbers = ['x', 'y', 'borderWidth', 'radius', 'tension']; -const colors = ['color', 'borderColor', 'backgroundColor']; -defaults.set('animation', { - delay: undefined, - duration: 1000, - easing: 'easeOutQuart', - fn: undefined, - from: undefined, - loop: undefined, - to: undefined, - type: undefined, -}); -const animationOptions = Object.keys(defaults.animation); -defaults.describe('animation', { - _fallback: false, - _indexable: false, - _scriptable: (name) => name !== 'onProgress' && name !== 'onComplete' && name !== 'fn', -}); -defaults.set('animations', { - colors: { - type: 'color', - properties: colors - }, - numbers: { - type: 'number', - properties: numbers - }, -}); -defaults.describe('animations', { - _fallback: 'animation', -}); -defaults.set('transitions', { - active: { - animation: { - duration: 400 - } - }, - resize: { - animation: { - duration: 0 - } - }, - show: { - animations: { - colors: { - from: 'transparent' - }, - visible: { - type: 'boolean', - duration: 0 - }, - } - }, - hide: { - animations: { - colors: { - to: 'transparent' - }, - visible: { - type: 'boolean', - easing: 'linear', - fn: v => v | 0 - }, - } - } -}); class Animations { - constructor(chart, config) { - this._chart = chart; - this._properties = new Map(); - this.configure(config); - } - configure(config) { - if (!isObject(config)) { - return; + constructor(chart, config){ + this._chart = chart; + this._properties = new Map(); + this.configure(config); } - const animatedProps = this._properties; - Object.getOwnPropertyNames(config).forEach(key => { - const cfg = config[key]; - if (!isObject(cfg)) { - return; - } - const resolved = {}; - for (const option of animationOptions) { - resolved[option] = cfg[option]; - } - (isArray(cfg.properties) && cfg.properties || [key]).forEach((prop) => { - if (prop === key || !animatedProps.has(prop)) { - animatedProps.set(prop, resolved); + configure(config) { + if (!isObject(config)) { + return; } - }); - }); - } - _animateOptions(target, values) { - const newOptions = values.options; - const options = resolveTargetOptions(target, newOptions); - if (!options) { - return []; + const animationOptions = Object.keys(defaults.animation); + const animatedProps = this._properties; + Object.getOwnPropertyNames(config).forEach((key)=>{ + const cfg = config[key]; + if (!isObject(cfg)) { + return; + } + const resolved = {}; + for (const option of animationOptions){ + resolved[option] = cfg[option]; + } + (isArray(cfg.properties) && cfg.properties || [ + key + ]).forEach((prop)=>{ + if (prop === key || !animatedProps.has(prop)) { + animatedProps.set(prop, resolved); + } + }); + }); } - const animations = this._createAnimations(options, newOptions); - if (newOptions.$shared) { - awaitAll(target.options.$animations, newOptions).then(() => { - target.options = newOptions; - }, () => { - }); - } - return animations; - } - _createAnimations(target, values) { - const animatedProps = this._properties; - const animations = []; - const running = target.$animations || (target.$animations = {}); - const props = Object.keys(values); - const date = Date.now(); - let i; - for (i = props.length - 1; i >= 0; --i) { - const prop = props[i]; - if (prop.charAt(0) === '$') { - continue; - } - if (prop === 'options') { - animations.push(...this._animateOptions(target, values)); - continue; - } - const value = values[prop]; - let animation = running[prop]; - const cfg = animatedProps.get(prop); - if (animation) { - if (cfg && animation.active()) { - animation.update(cfg, value, date); - continue; - } else { - animation.cancel(); + _animateOptions(target, values) { + const newOptions = values.options; + const options = resolveTargetOptions(target, newOptions); + if (!options) { + return []; } - } - if (!cfg || !cfg.duration) { - target[prop] = value; - continue; - } - running[prop] = animation = new Animation(cfg, target, prop, value); - animations.push(animation); + const animations = this._createAnimations(options, newOptions); + if (newOptions.$shared) { + awaitAll(target.options.$animations, newOptions).then(()=>{ + target.options = newOptions; + }, ()=>{ + }); + } + return animations; } - return animations; - } - update(target, values) { - if (this._properties.size === 0) { - Object.assign(target, values); - return; + _createAnimations(target, values) { + const animatedProps = this._properties; + const animations = []; + const running = target.$animations || (target.$animations = {}); + const props = Object.keys(values); + const date = Date.now(); + let i; + for(i = props.length - 1; i >= 0; --i){ + const prop = props[i]; + if (prop.charAt(0) === '$') { + continue; + } + if (prop === 'options') { + animations.push(...this._animateOptions(target, values)); + continue; + } + const value = values[prop]; + let animation = running[prop]; + const cfg = animatedProps.get(prop); + if (animation) { + if (cfg && animation.active()) { + animation.update(cfg, value, date); + continue; + } else { + animation.cancel(); + } + } + if (!cfg || !cfg.duration) { + target[prop] = value; + continue; + } + running[prop] = animation = new Animation(cfg, target, prop, value); + animations.push(animation); + } + return animations; } - const animations = this._createAnimations(target, values); - if (animations.length) { - animator.add(this._chart, animations); - return true; + update(target, values) { + if (this._properties.size === 0) { + Object.assign(target, values); + return; + } + const animations = this._createAnimations(target, values); + if (animations.length) { + animator.add(this._chart, animations); + return true; + } } - } } function awaitAll(animations, properties) { - const running = []; - const keys = Object.keys(properties); - for (let i = 0; i < keys.length; i++) { - const anim = animations[keys[i]]; - if (anim && anim.active()) { - running.push(anim.wait()); + const running = []; + const keys = Object.keys(properties); + for(let i = 0; i < keys.length; i++){ + const anim = animations[keys[i]]; + if (anim && anim.active()) { + running.push(anim.wait()); + } } - } - return Promise.all(running); + return Promise.all(running); } function resolveTargetOptions(target, newOptions) { - if (!newOptions) { - return; - } - let options = target.options; - if (!options) { - target.options = newOptions; - return; - } - if (options.$shared) { - target.options = options = Object.assign({}, options, {$shared: false, $animations: {}}); - } - return options; + if (!newOptions) { + return; + } + let options = target.options; + if (!options) { + target.options = newOptions; + return; + } + if (options.$shared) { + target.options = options = Object.assign({}, options, { + $shared: false, + $animations: {} + }); + } + return options; } function scaleClip(scale, allowedOverflow) { - const opts = scale && scale.options || {}; - const reverse = opts.reverse; - const min = opts.min === undefined ? allowedOverflow : 0; - const max = opts.max === undefined ? allowedOverflow : 0; - return { - start: reverse ? max : min, - end: reverse ? min : max - }; + const opts = scale && scale.options || {}; + const reverse = opts.reverse; + const min = opts.min === undefined ? allowedOverflow : 0; + const max = opts.max === undefined ? allowedOverflow : 0; + return { + start: reverse ? max : min, + end: reverse ? min : max + }; } function defaultClip(xScale, yScale, allowedOverflow) { - if (allowedOverflow === false) { - return false; - } - const x = scaleClip(xScale, allowedOverflow); - const y = scaleClip(yScale, allowedOverflow); - return { - top: y.end, - right: x.end, - bottom: y.start, - left: x.start - }; + if (allowedOverflow === false) { + return false; + } + const x = scaleClip(xScale, allowedOverflow); + const y = scaleClip(yScale, allowedOverflow); + return { + top: y.end, + right: x.end, + bottom: y.start, + left: x.start + }; } function toClip(value) { - let t, r, b, l; - if (isObject(value)) { - t = value.top; - r = value.right; - b = value.bottom; - l = value.left; - } else { - t = r = b = l = value; - } - return { - top: t, - right: r, - bottom: b, - left: l, - disabled: value === false - }; + let t, r, b, l; + if (isObject(value)) { + t = value.top; + r = value.right; + b = value.bottom; + l = value.left; + } else { + t = r = b = l = value; + } + return { + top: t, + right: r, + bottom: b, + left: l, + disabled: value === false + }; } function getSortedDatasetIndices(chart, filterVisible) { - const keys = []; - const metasets = chart._getSortedDatasetMetas(filterVisible); - let i, ilen; - for (i = 0, ilen = metasets.length; i < ilen; ++i) { - keys.push(metasets[i].index); - } - return keys; + const keys = []; + const metasets = chart._getSortedDatasetMetas(filterVisible); + let i, ilen; + for(i = 0, ilen = metasets.length; i < ilen; ++i){ + keys.push(metasets[i].index); + } + return keys; } function applyStack(stack, value, dsIndex, options = {}) { - const keys = stack.keys; - const singleMode = options.mode === 'single'; - let i, ilen, datasetIndex, otherValue; - if (value === null) { - return; - } - for (i = 0, ilen = keys.length; i < ilen; ++i) { - datasetIndex = +keys[i]; - if (datasetIndex === dsIndex) { - if (options.all) { - continue; - } - break; + const keys = stack.keys; + const singleMode = options.mode === 'single'; + let i, ilen, datasetIndex, otherValue; + if (value === null) { + return; } - otherValue = stack.values[datasetIndex]; - if (isNumberFinite(otherValue) && (singleMode || (value === 0 || sign(value) === sign(otherValue)))) { - value += otherValue; + for(i = 0, ilen = keys.length; i < ilen; ++i){ + datasetIndex = +keys[i]; + if (datasetIndex === dsIndex) { + if (options.all) { + continue; + } + break; + } + otherValue = stack.values[datasetIndex]; + if (isNumberFinite(otherValue) && (singleMode || value === 0 || sign(value) === sign(otherValue))) { + value += otherValue; + } } - } - return value; + return value; } function convertObjectDataToArray(data) { - const keys = Object.keys(data); - const adata = new Array(keys.length); - let i, ilen, key; - for (i = 0, ilen = keys.length; i < ilen; ++i) { - key = keys[i]; - adata[i] = { - x: key, - y: data[key] - }; - } - return adata; + const keys = Object.keys(data); + const adata = new Array(keys.length); + let i, ilen, key; + for(i = 0, ilen = keys.length; i < ilen; ++i){ + key = keys[i]; + adata[i] = { + x: key, + y: data[key] + }; + } + return adata; } function isStacked(scale, meta) { - const stacked = scale && scale.options.stacked; - return stacked || (stacked === undefined && meta.stack !== undefined); + const stacked = scale && scale.options.stacked; + return stacked || stacked === undefined && meta.stack !== undefined; } function getStackKey(indexScale, valueScale, meta) { - return `${indexScale.id}.${valueScale.id}.${meta.stack || meta.type}`; + return `${indexScale.id}.${valueScale.id}.${meta.stack || meta.type}`; } function getUserBounds(scale) { - const {min, max, minDefined, maxDefined} = scale.getUserBounds(); - return { - min: minDefined ? min : Number.NEGATIVE_INFINITY, - max: maxDefined ? max : Number.POSITIVE_INFINITY - }; + const { min , max , minDefined , maxDefined } = scale.getUserBounds(); + return { + min: minDefined ? min : Number.NEGATIVE_INFINITY, + max: maxDefined ? max : Number.POSITIVE_INFINITY + }; } function getOrCreateStack(stacks, stackKey, indexValue) { - const subStack = stacks[stackKey] || (stacks[stackKey] = {}); - return subStack[indexValue] || (subStack[indexValue] = {}); + const subStack = stacks[stackKey] || (stacks[stackKey] = {}); + return subStack[indexValue] || (subStack[indexValue] = {}); } function getLastIndexInStack(stack, vScale, positive, type) { - for (const meta of vScale.getMatchingVisibleMetas(type).reverse()) { - const value = stack[meta.index]; - if ((positive && value > 0) || (!positive && value < 0)) { - return meta.index; + for (const meta of vScale.getMatchingVisibleMetas(type).reverse()){ + const value = stack[meta.index]; + if (positive && value > 0 || !positive && value < 0) { + return meta.index; + } } - } - return null; + return null; } function updateStacks(controller, parsed) { - const {chart, _cachedMeta: meta} = controller; - const stacks = chart._stacks || (chart._stacks = {}); - const {iScale, vScale, index: datasetIndex} = meta; - const iAxis = iScale.axis; - const vAxis = vScale.axis; - const key = getStackKey(iScale, vScale, meta); - const ilen = parsed.length; - let stack; - for (let i = 0; i < ilen; ++i) { - const item = parsed[i]; - const {[iAxis]: index, [vAxis]: value} = item; - const itemStacks = item._stacks || (item._stacks = {}); - stack = itemStacks[vAxis] = getOrCreateStack(stacks, key, index); - stack[datasetIndex] = value; - stack._top = getLastIndexInStack(stack, vScale, true, meta.type); - stack._bottom = getLastIndexInStack(stack, vScale, false, meta.type); - } -} -function getFirstScaleId(chart, axis) { - const scales = chart.scales; - return Object.keys(scales).filter(key => scales[key].axis === axis).shift(); -} -function createDatasetContext(parent, index) { - return createContext(parent, - { - active: false, - dataset: undefined, - datasetIndex: index, - index, - mode: 'default', - type: 'dataset' - } - ); -} -function createDataContext(parent, index, element) { - return createContext(parent, { - active: false, - dataIndex: index, - parsed: undefined, - raw: undefined, - element, - index, - mode: 'default', - type: 'data' - }); -} -function clearStacks(meta, items) { - const datasetIndex = meta.controller.index; - const axis = meta.vScale && meta.vScale.axis; - if (!axis) { - return; - } - items = items || meta._parsed; - for (const parsed of items) { - const stacks = parsed._stacks; - if (!stacks || stacks[axis] === undefined || stacks[axis][datasetIndex] === undefined) { - return; - } - delete stacks[axis][datasetIndex]; - } -} -const isDirectUpdateMode = (mode) => mode === 'reset' || mode === 'none'; -const cloneIfNotShared = (cached, shared) => shared ? cached : Object.assign({}, cached); -const createStack = (canStack, meta, chart) => canStack && !meta.hidden && meta._stacked - && {keys: getSortedDatasetIndices(chart, true), values: null}; -class DatasetController { - constructor(chart, datasetIndex) { - this.chart = chart; - this._ctx = chart.ctx; - this.index = datasetIndex; - this._cachedDataOpts = {}; - this._cachedMeta = this.getMeta(); - this._type = this._cachedMeta.type; - this.options = undefined; - this._parsing = false; - this._data = undefined; - this._objectData = undefined; - this._sharedOptions = undefined; - this._drawStart = undefined; - this._drawCount = undefined; - this.enableOptionSharing = false; - this.supportsDecimation = false; - this.$context = undefined; - this._syncList = []; - this.initialize(); - } - initialize() { - const meta = this._cachedMeta; - this.configure(); - this.linkScales(); - meta._stacked = isStacked(meta.vScale, meta); - this.addElements(); - } - updateIndex(datasetIndex) { - if (this.index !== datasetIndex) { - clearStacks(this._cachedMeta); - } - this.index = datasetIndex; - } - linkScales() { - const chart = this.chart; - const meta = this._cachedMeta; - const dataset = this.getDataset(); - const chooseId = (axis, x, y, r) => axis === 'x' ? x : axis === 'r' ? r : y; - const xid = meta.xAxisID = valueOrDefault(dataset.xAxisID, getFirstScaleId(chart, 'x')); - const yid = meta.yAxisID = valueOrDefault(dataset.yAxisID, getFirstScaleId(chart, 'y')); - const rid = meta.rAxisID = valueOrDefault(dataset.rAxisID, getFirstScaleId(chart, 'r')); - const indexAxis = meta.indexAxis; - const iid = meta.iAxisID = chooseId(indexAxis, xid, yid, rid); - const vid = meta.vAxisID = chooseId(indexAxis, yid, xid, rid); - meta.xScale = this.getScaleForId(xid); - meta.yScale = this.getScaleForId(yid); - meta.rScale = this.getScaleForId(rid); - meta.iScale = this.getScaleForId(iid); - meta.vScale = this.getScaleForId(vid); - } - getDataset() { - return this.chart.data.datasets[this.index]; - } - getMeta() { - return this.chart.getDatasetMeta(this.index); - } - getScaleForId(scaleID) { - return this.chart.scales[scaleID]; - } - _getOtherScale(scale) { - const meta = this._cachedMeta; - return scale === meta.iScale - ? meta.vScale - : meta.iScale; - } - reset() { - this._update('reset'); - } - _destroy() { - const meta = this._cachedMeta; - if (this._data) { - unlistenArrayEvents(this._data, this); - } - if (meta._stacked) { - clearStacks(meta); - } - } - _dataCheck() { - const dataset = this.getDataset(); - const data = dataset.data || (dataset.data = []); - const _data = this._data; - if (isObject(data)) { - this._data = convertObjectDataToArray(data); - } else if (_data !== data) { - if (_data) { - unlistenArrayEvents(_data, this); - const meta = this._cachedMeta; - clearStacks(meta); - meta._parsed = []; - } - if (data && Object.isExtensible(data)) { - listenArrayEvents(data, this); - } - this._syncList = []; - this._data = data; - } - } - addElements() { - const meta = this._cachedMeta; - this._dataCheck(); - if (this.datasetElementType) { - meta.dataset = new this.datasetElementType(); - } - } - buildOrUpdateElements(resetNewElements) { - const meta = this._cachedMeta; - const dataset = this.getDataset(); - let stackChanged = false; - this._dataCheck(); - const oldStacked = meta._stacked; - meta._stacked = isStacked(meta.vScale, meta); - if (meta.stack !== dataset.stack) { - stackChanged = true; - clearStacks(meta); - meta.stack = dataset.stack; - } - this._resyncElements(resetNewElements); - if (stackChanged || oldStacked !== meta._stacked) { - updateStacks(this, meta._parsed); - } - } - configure() { - const config = this.chart.config; - const scopeKeys = config.datasetScopeKeys(this._type); - const scopes = config.getOptionScopes(this.getDataset(), scopeKeys, true); - this.options = config.createResolver(scopes, this.getContext()); - this._parsing = this.options.parsing; - this._cachedDataOpts = {}; - } - parse(start, count) { - const {_cachedMeta: meta, _data: data} = this; - const {iScale, _stacked} = meta; - const iAxis = iScale.axis; - let sorted = start === 0 && count === data.length ? true : meta._sorted; - let prev = start > 0 && meta._parsed[start - 1]; - let i, cur, parsed; - if (this._parsing === false) { - meta._parsed = data; - meta._sorted = true; - parsed = data; - } else { - if (isArray(data[start])) { - parsed = this.parseArrayData(meta, data, start, count); - } else if (isObject(data[start])) { - parsed = this.parseObjectData(meta, data, start, count); - } else { - parsed = this.parsePrimitiveData(meta, data, start, count); - } - const isNotInOrderComparedToPrev = () => cur[iAxis] === null || (prev && cur[iAxis] < prev[iAxis]); - for (i = 0; i < count; ++i) { - meta._parsed[i + start] = cur = parsed[i]; - if (sorted) { - if (isNotInOrderComparedToPrev()) { - sorted = false; - } - prev = cur; - } - } - meta._sorted = sorted; - } - if (_stacked) { - updateStacks(this, parsed); - } - } - parsePrimitiveData(meta, data, start, count) { - const {iScale, vScale} = meta; + const { chart , _cachedMeta: meta } = controller; + const stacks = chart._stacks || (chart._stacks = {}); + const { iScale , vScale , index: datasetIndex } = meta; const iAxis = iScale.axis; const vAxis = vScale.axis; - const labels = iScale.getLabels(); - const singleScale = iScale === vScale; - const parsed = new Array(count); - let i, ilen, index; - for (i = 0, ilen = count; i < ilen; ++i) { - index = i + start; - parsed[i] = { - [iAxis]: singleScale || iScale.parse(labels[index], index), - [vAxis]: vScale.parse(data[index], index) - }; + const key = getStackKey(iScale, vScale, meta); + const ilen = parsed.length; + let stack; + for(let i = 0; i < ilen; ++i){ + const item = parsed[i]; + const { [iAxis]: index , [vAxis]: value } = item; + const itemStacks = item._stacks || (item._stacks = {}); + stack = itemStacks[vAxis] = getOrCreateStack(stacks, key, index); + stack[datasetIndex] = value; + stack._top = getLastIndexInStack(stack, vScale, true, meta.type); + stack._bottom = getLastIndexInStack(stack, vScale, false, meta.type); + const visualValues = stack._visualValues || (stack._visualValues = {}); + visualValues[datasetIndex] = value; + } +} +function getFirstScaleId(chart, axis) { + const scales = chart.scales; + return Object.keys(scales).filter((key)=>scales[key].axis === axis).shift(); +} +function createDatasetContext(parent, index) { + return createContext(parent, { + active: false, + dataset: undefined, + datasetIndex: index, + index, + mode: 'default', + type: 'dataset' + }); +} +function createDataContext(parent, index, element) { + return createContext(parent, { + active: false, + dataIndex: index, + parsed: undefined, + raw: undefined, + element, + index, + mode: 'default', + type: 'data' + }); +} +function clearStacks(meta, items) { + const datasetIndex = meta.controller.index; + const axis = meta.vScale && meta.vScale.axis; + if (!axis) { + return; + } + items = items || meta._parsed; + for (const parsed of items){ + const stacks = parsed._stacks; + if (!stacks || stacks[axis] === undefined || stacks[axis][datasetIndex] === undefined) { + return; + } + delete stacks[axis][datasetIndex]; + if (stacks[axis]._visualValues !== undefined && stacks[axis]._visualValues[datasetIndex] !== undefined) { + delete stacks[axis]._visualValues[datasetIndex]; + } + } +} +const isDirectUpdateMode = (mode)=>mode === 'reset' || mode === 'none'; +const cloneIfNotShared = (cached, shared)=>shared ? cached : Object.assign({}, cached); +const createStack = (canStack, meta, chart)=>canStack && !meta.hidden && meta._stacked && { + keys: getSortedDatasetIndices(chart, true), + values: null + }; +class DatasetController { + static defaults = {}; + static datasetElementType = null; + static dataElementType = null; + constructor(chart, datasetIndex){ + this.chart = chart; + this._ctx = chart.ctx; + this.index = datasetIndex; + this._cachedDataOpts = {}; + this._cachedMeta = this.getMeta(); + this._type = this._cachedMeta.type; + this.options = undefined; + this._parsing = false; + this._data = undefined; + this._objectData = undefined; + this._sharedOptions = undefined; + this._drawStart = undefined; + this._drawCount = undefined; + this.enableOptionSharing = false; + this.supportsDecimation = false; + this.$context = undefined; + this._syncList = []; + this.datasetElementType = new.target.datasetElementType; + this.dataElementType = new.target.dataElementType; + this.initialize(); + } + initialize() { + const meta = this._cachedMeta; + this.configure(); + this.linkScales(); + meta._stacked = isStacked(meta.vScale, meta); + this.addElements(); + if (this.options.fill && !this.chart.isPluginEnabled('filler')) { + console.warn("Tried to use the 'fill' option without the 'Filler' plugin enabled. Please import and register the 'Filler' plugin and make sure it is not disabled in the options"); + } + } + updateIndex(datasetIndex) { + if (this.index !== datasetIndex) { + clearStacks(this._cachedMeta); + } + this.index = datasetIndex; + } + linkScales() { + const chart = this.chart; + const meta = this._cachedMeta; + const dataset = this.getDataset(); + const chooseId = (axis, x, y, r)=>axis === 'x' ? x : axis === 'r' ? r : y; + const xid = meta.xAxisID = valueOrDefault(dataset.xAxisID, getFirstScaleId(chart, 'x')); + const yid = meta.yAxisID = valueOrDefault(dataset.yAxisID, getFirstScaleId(chart, 'y')); + const rid = meta.rAxisID = valueOrDefault(dataset.rAxisID, getFirstScaleId(chart, 'r')); + const indexAxis = meta.indexAxis; + const iid = meta.iAxisID = chooseId(indexAxis, xid, yid, rid); + const vid = meta.vAxisID = chooseId(indexAxis, yid, xid, rid); + meta.xScale = this.getScaleForId(xid); + meta.yScale = this.getScaleForId(yid); + meta.rScale = this.getScaleForId(rid); + meta.iScale = this.getScaleForId(iid); + meta.vScale = this.getScaleForId(vid); + } + getDataset() { + return this.chart.data.datasets[this.index]; + } + getMeta() { + return this.chart.getDatasetMeta(this.index); + } + getScaleForId(scaleID) { + return this.chart.scales[scaleID]; + } + _getOtherScale(scale) { + const meta = this._cachedMeta; + return scale === meta.iScale ? meta.vScale : meta.iScale; + } + reset() { + this._update('reset'); + } + _destroy() { + const meta = this._cachedMeta; + if (this._data) { + unlistenArrayEvents(this._data, this); + } + if (meta._stacked) { + clearStacks(meta); + } + } + _dataCheck() { + const dataset = this.getDataset(); + const data = dataset.data || (dataset.data = []); + const _data = this._data; + if (isObject(data)) { + this._data = convertObjectDataToArray(data); + } else if (_data !== data) { + if (_data) { + unlistenArrayEvents(_data, this); + const meta = this._cachedMeta; + clearStacks(meta); + meta._parsed = []; + } + if (data && Object.isExtensible(data)) { + listenArrayEvents(data, this); + } + this._syncList = []; + this._data = data; + } + } + addElements() { + const meta = this._cachedMeta; + this._dataCheck(); + if (this.datasetElementType) { + meta.dataset = new this.datasetElementType(); + } + } + buildOrUpdateElements(resetNewElements) { + const meta = this._cachedMeta; + const dataset = this.getDataset(); + let stackChanged = false; + this._dataCheck(); + const oldStacked = meta._stacked; + meta._stacked = isStacked(meta.vScale, meta); + if (meta.stack !== dataset.stack) { + stackChanged = true; + clearStacks(meta); + meta.stack = dataset.stack; + } + this._resyncElements(resetNewElements); + if (stackChanged || oldStacked !== meta._stacked) { + updateStacks(this, meta._parsed); + } + } + configure() { + const config = this.chart.config; + const scopeKeys = config.datasetScopeKeys(this._type); + const scopes = config.getOptionScopes(this.getDataset(), scopeKeys, true); + this.options = config.createResolver(scopes, this.getContext()); + this._parsing = this.options.parsing; + this._cachedDataOpts = {}; + } + parse(start, count) { + const { _cachedMeta: meta , _data: data } = this; + const { iScale , _stacked } = meta; + const iAxis = iScale.axis; + let sorted = start === 0 && count === data.length ? true : meta._sorted; + let prev = start > 0 && meta._parsed[start - 1]; + let i, cur, parsed; + if (this._parsing === false) { + meta._parsed = data; + meta._sorted = true; + parsed = data; + } else { + if (isArray(data[start])) { + parsed = this.parseArrayData(meta, data, start, count); + } else if (isObject(data[start])) { + parsed = this.parseObjectData(meta, data, start, count); + } else { + parsed = this.parsePrimitiveData(meta, data, start, count); + } + const isNotInOrderComparedToPrev = ()=>cur[iAxis] === null || prev && cur[iAxis] < prev[iAxis]; + for(i = 0; i < count; ++i){ + meta._parsed[i + start] = cur = parsed[i]; + if (sorted) { + if (isNotInOrderComparedToPrev()) { + sorted = false; + } + prev = cur; + } + } + meta._sorted = sorted; + } + if (_stacked) { + updateStacks(this, parsed); + } + } + parsePrimitiveData(meta, data, start, count) { + const { iScale , vScale } = meta; + const iAxis = iScale.axis; + const vAxis = vScale.axis; + const labels = iScale.getLabels(); + const singleScale = iScale === vScale; + const parsed = new Array(count); + let i, ilen, index; + for(i = 0, ilen = count; i < ilen; ++i){ + index = i + start; + parsed[i] = { + [iAxis]: singleScale || iScale.parse(labels[index], index), + [vAxis]: vScale.parse(data[index], index) + }; + } + return parsed; + } + parseArrayData(meta, data, start, count) { + const { xScale , yScale } = meta; + const parsed = new Array(count); + let i, ilen, index, item; + for(i = 0, ilen = count; i < ilen; ++i){ + index = i + start; + item = data[index]; + parsed[i] = { + x: xScale.parse(item[0], index), + y: yScale.parse(item[1], index) + }; + } + return parsed; + } + parseObjectData(meta, data, start, count) { + const { xScale , yScale } = meta; + const { xAxisKey ='x' , yAxisKey ='y' } = this._parsing; + const parsed = new Array(count); + let i, ilen, index, item; + for(i = 0, ilen = count; i < ilen; ++i){ + index = i + start; + item = data[index]; + parsed[i] = { + x: xScale.parse(resolveObjectKey(item, xAxisKey), index), + y: yScale.parse(resolveObjectKey(item, yAxisKey), index) + }; + } + return parsed; + } + getParsed(index) { + return this._cachedMeta._parsed[index]; + } + getDataElement(index) { + return this._cachedMeta.data[index]; + } + applyStack(scale, parsed, mode) { + const chart = this.chart; + const meta = this._cachedMeta; + const value = parsed[scale.axis]; + const stack = { + keys: getSortedDatasetIndices(chart, true), + values: parsed._stacks[scale.axis]._visualValues + }; + return applyStack(stack, value, meta.index, { + mode + }); + } + updateRangeFromParsed(range, scale, parsed, stack) { + const parsedValue = parsed[scale.axis]; + let value = parsedValue === null ? NaN : parsedValue; + const values = stack && parsed._stacks[scale.axis]; + if (stack && values) { + stack.values = values; + value = applyStack(stack, parsedValue, this._cachedMeta.index); + } + range.min = Math.min(range.min, value); + range.max = Math.max(range.max, value); + } + getMinMax(scale, canStack) { + const meta = this._cachedMeta; + const _parsed = meta._parsed; + const sorted = meta._sorted && scale === meta.iScale; + const ilen = _parsed.length; + const otherScale = this._getOtherScale(scale); + const stack = createStack(canStack, meta, this.chart); + const range = { + min: Number.POSITIVE_INFINITY, + max: Number.NEGATIVE_INFINITY + }; + const { min: otherMin , max: otherMax } = getUserBounds(otherScale); + let i, parsed; + function _skip() { + parsed = _parsed[i]; + const otherValue = parsed[otherScale.axis]; + return !isNumberFinite(parsed[scale.axis]) || otherMin > otherValue || otherMax < otherValue; + } + for(i = 0; i < ilen; ++i){ + if (_skip()) { + continue; + } + this.updateRangeFromParsed(range, scale, parsed, stack); + if (sorted) { + break; + } + } + if (sorted) { + for(i = ilen - 1; i >= 0; --i){ + if (_skip()) { + continue; + } + this.updateRangeFromParsed(range, scale, parsed, stack); + break; + } + } + return range; + } + getAllParsedValues(scale) { + const parsed = this._cachedMeta._parsed; + const values = []; + let i, ilen, value; + for(i = 0, ilen = parsed.length; i < ilen; ++i){ + value = parsed[i][scale.axis]; + if (isNumberFinite(value)) { + values.push(value); + } + } + return values; + } + getMaxOverflow() { + return false; + } + getLabelAndValue(index) { + const meta = this._cachedMeta; + const iScale = meta.iScale; + const vScale = meta.vScale; + const parsed = this.getParsed(index); + return { + label: iScale ? '' + iScale.getLabelForValue(parsed[iScale.axis]) : '', + value: vScale ? '' + vScale.getLabelForValue(parsed[vScale.axis]) : '' + }; + } + _update(mode) { + const meta = this._cachedMeta; + this.update(mode || 'default'); + meta._clip = toClip(valueOrDefault(this.options.clip, defaultClip(meta.xScale, meta.yScale, this.getMaxOverflow()))); + } + update(mode) {} + draw() { + const ctx = this._ctx; + const chart = this.chart; + const meta = this._cachedMeta; + const elements = meta.data || []; + const area = chart.chartArea; + const active = []; + const start = this._drawStart || 0; + const count = this._drawCount || elements.length - start; + const drawActiveElementsOnTop = this.options.drawActiveElementsOnTop; + let i; + if (meta.dataset) { + meta.dataset.draw(ctx, area, start, count); + } + for(i = start; i < start + count; ++i){ + const element = elements[i]; + if (element.hidden) { + continue; + } + if (element.active && drawActiveElementsOnTop) { + active.push(element); + } else { + element.draw(ctx, area); + } + } + for(i = 0; i < active.length; ++i){ + active[i].draw(ctx, area); + } + } + getStyle(index, active) { + const mode = active ? 'active' : 'default'; + return index === undefined && this._cachedMeta.dataset ? this.resolveDatasetElementOptions(mode) : this.resolveDataElementOptions(index || 0, mode); + } + getContext(index, active, mode) { + const dataset = this.getDataset(); + let context; + if (index >= 0 && index < this._cachedMeta.data.length) { + const element = this._cachedMeta.data[index]; + context = element.$context || (element.$context = createDataContext(this.getContext(), index, element)); + context.parsed = this.getParsed(index); + context.raw = dataset.data[index]; + context.index = context.dataIndex = index; + } else { + context = this.$context || (this.$context = createDatasetContext(this.chart.getContext(), this.index)); + context.dataset = dataset; + context.index = context.datasetIndex = this.index; + } + context.active = !!active; + context.mode = mode; + return context; + } + resolveDatasetElementOptions(mode) { + return this._resolveElementOptions(this.datasetElementType.id, mode); + } + resolveDataElementOptions(index, mode) { + return this._resolveElementOptions(this.dataElementType.id, mode, index); + } + _resolveElementOptions(elementType, mode = 'default', index) { + const active = mode === 'active'; + const cache = this._cachedDataOpts; + const cacheKey = elementType + '-' + mode; + const cached = cache[cacheKey]; + const sharing = this.enableOptionSharing && defined(index); + if (cached) { + return cloneIfNotShared(cached, sharing); + } + const config = this.chart.config; + const scopeKeys = config.datasetElementScopeKeys(this._type, elementType); + const prefixes = active ? [ + `${elementType}Hover`, + 'hover', + elementType, + '' + ] : [ + elementType, + '' + ]; + const scopes = config.getOptionScopes(this.getDataset(), scopeKeys); + const names = Object.keys(defaults.elements[elementType]); + const context = ()=>this.getContext(index, active, mode); + const values = config.resolveNamedOptions(scopes, names, context, prefixes); + if (values.$shared) { + values.$shared = sharing; + cache[cacheKey] = Object.freeze(cloneIfNotShared(values, sharing)); + } + return values; + } + _resolveAnimations(index, transition, active) { + const chart = this.chart; + const cache = this._cachedDataOpts; + const cacheKey = `animation-${transition}`; + const cached = cache[cacheKey]; + if (cached) { + return cached; + } + let options; + if (chart.options.animation !== false) { + const config = this.chart.config; + const scopeKeys = config.datasetAnimationScopeKeys(this._type, transition); + const scopes = config.getOptionScopes(this.getDataset(), scopeKeys); + options = config.createResolver(scopes, this.getContext(index, active, transition)); + } + const animations = new Animations(chart, options && options.animations); + if (options && options._cacheable) { + cache[cacheKey] = Object.freeze(animations); + } + return animations; + } + getSharedOptions(options) { + if (!options.$shared) { + return; + } + return this._sharedOptions || (this._sharedOptions = Object.assign({}, options)); + } + includeOptions(mode, sharedOptions) { + return !sharedOptions || isDirectUpdateMode(mode) || this.chart._animationsDisabled; + } + _getSharedOptions(start, mode) { + const firstOpts = this.resolveDataElementOptions(start, mode); + const previouslySharedOptions = this._sharedOptions; + const sharedOptions = this.getSharedOptions(firstOpts); + const includeOptions = this.includeOptions(mode, sharedOptions) || sharedOptions !== previouslySharedOptions; + this.updateSharedOptions(sharedOptions, mode, firstOpts); + return { + sharedOptions, + includeOptions + }; + } + updateElement(element, index, properties, mode) { + if (isDirectUpdateMode(mode)) { + Object.assign(element, properties); + } else { + this._resolveAnimations(index, mode).update(element, properties); + } + } + updateSharedOptions(sharedOptions, mode, newOptions) { + if (sharedOptions && !isDirectUpdateMode(mode)) { + this._resolveAnimations(undefined, mode).update(sharedOptions, newOptions); + } + } + _setStyle(element, index, mode, active) { + element.active = active; + const options = this.getStyle(index, active); + this._resolveAnimations(index, mode, active).update(element, { + options: !active && this.getSharedOptions(options) || options + }); + } + removeHoverStyle(element, datasetIndex, index) { + this._setStyle(element, index, 'active', false); + } + setHoverStyle(element, datasetIndex, index) { + this._setStyle(element, index, 'active', true); + } + _removeDatasetHoverStyle() { + const element = this._cachedMeta.dataset; + if (element) { + this._setStyle(element, undefined, 'active', false); + } + } + _setDatasetHoverStyle() { + const element = this._cachedMeta.dataset; + if (element) { + this._setStyle(element, undefined, 'active', true); + } + } + _resyncElements(resetNewElements) { + const data = this._data; + const elements = this._cachedMeta.data; + for (const [method, arg1, arg2] of this._syncList){ + this[method](arg1, arg2); + } + this._syncList = []; + const numMeta = elements.length; + const numData = data.length; + const count = Math.min(numData, numMeta); + if (count) { + this.parse(0, count); + } + if (numData > numMeta) { + this._insertElements(numMeta, numData - numMeta, resetNewElements); + } else if (numData < numMeta) { + this._removeElements(numData, numMeta - numData); + } + } + _insertElements(start, count, resetNewElements = true) { + const meta = this._cachedMeta; + const data = meta.data; + const end = start + count; + let i; + const move = (arr)=>{ + arr.length += count; + for(i = arr.length - 1; i >= end; i--){ + arr[i] = arr[i - count]; + } + }; + move(data); + for(i = start; i < end; ++i){ + data[i] = new this.dataElementType(); + } + if (this._parsing) { + move(meta._parsed); + } + this.parse(start, count); + if (resetNewElements) { + this.updateElements(data, start, count, 'reset'); + } + } + updateElements(element, start, count, mode) {} + _removeElements(start, count) { + const meta = this._cachedMeta; + if (this._parsing) { + const removed = meta._parsed.splice(start, count); + if (meta._stacked) { + clearStacks(meta, removed); + } + } + meta.data.splice(start, count); + } + _sync(args) { + if (this._parsing) { + this._syncList.push(args); + } else { + const [method, arg1, arg2] = args; + this[method](arg1, arg2); + } + this.chart._dataChanges.push([ + this.index, + ...args + ]); + } + _onDataPush() { + const count = arguments.length; + this._sync([ + '_insertElements', + this.getDataset().data.length - count, + count + ]); + } + _onDataPop() { + this._sync([ + '_removeElements', + this._cachedMeta.data.length - 1, + 1 + ]); + } + _onDataShift() { + this._sync([ + '_removeElements', + 0, + 1 + ]); + } + _onDataSplice(start, count) { + if (count) { + this._sync([ + '_removeElements', + start, + count + ]); + } + const newCount = arguments.length - 2; + if (newCount) { + this._sync([ + '_insertElements', + start, + newCount + ]); + } + } + _onDataUnshift() { + this._sync([ + '_insertElements', + 0, + arguments.length + ]); } - return parsed; - } - parseArrayData(meta, data, start, count) { - const {xScale, yScale} = meta; - const parsed = new Array(count); - let i, ilen, index, item; - for (i = 0, ilen = count; i < ilen; ++i) { - index = i + start; - item = data[index]; - parsed[i] = { - x: xScale.parse(item[0], index), - y: yScale.parse(item[1], index) - }; - } - return parsed; - } - parseObjectData(meta, data, start, count) { - const {xScale, yScale} = meta; - const {xAxisKey = 'x', yAxisKey = 'y'} = this._parsing; - const parsed = new Array(count); - let i, ilen, index, item; - for (i = 0, ilen = count; i < ilen; ++i) { - index = i + start; - item = data[index]; - parsed[i] = { - x: xScale.parse(resolveObjectKey(item, xAxisKey), index), - y: yScale.parse(resolveObjectKey(item, yAxisKey), index) - }; - } - return parsed; - } - getParsed(index) { - return this._cachedMeta._parsed[index]; - } - getDataElement(index) { - return this._cachedMeta.data[index]; - } - applyStack(scale, parsed, mode) { - const chart = this.chart; - const meta = this._cachedMeta; - const value = parsed[scale.axis]; - const stack = { - keys: getSortedDatasetIndices(chart, true), - values: parsed._stacks[scale.axis] - }; - return applyStack(stack, value, meta.index, {mode}); - } - updateRangeFromParsed(range, scale, parsed, stack) { - const parsedValue = parsed[scale.axis]; - let value = parsedValue === null ? NaN : parsedValue; - const values = stack && parsed._stacks[scale.axis]; - if (stack && values) { - stack.values = values; - value = applyStack(stack, parsedValue, this._cachedMeta.index); - } - range.min = Math.min(range.min, value); - range.max = Math.max(range.max, value); - } - getMinMax(scale, canStack) { - const meta = this._cachedMeta; - const _parsed = meta._parsed; - const sorted = meta._sorted && scale === meta.iScale; - const ilen = _parsed.length; - const otherScale = this._getOtherScale(scale); - const stack = createStack(canStack, meta, this.chart); - const range = {min: Number.POSITIVE_INFINITY, max: Number.NEGATIVE_INFINITY}; - const {min: otherMin, max: otherMax} = getUserBounds(otherScale); - let i, parsed; - function _skip() { - parsed = _parsed[i]; - const otherValue = parsed[otherScale.axis]; - return !isNumberFinite(parsed[scale.axis]) || otherMin > otherValue || otherMax < otherValue; - } - for (i = 0; i < ilen; ++i) { - if (_skip()) { - continue; - } - this.updateRangeFromParsed(range, scale, parsed, stack); - if (sorted) { - break; - } - } - if (sorted) { - for (i = ilen - 1; i >= 0; --i) { - if (_skip()) { - continue; - } - this.updateRangeFromParsed(range, scale, parsed, stack); - break; - } - } - return range; - } - getAllParsedValues(scale) { - const parsed = this._cachedMeta._parsed; - const values = []; - let i, ilen, value; - for (i = 0, ilen = parsed.length; i < ilen; ++i) { - value = parsed[i][scale.axis]; - if (isNumberFinite(value)) { - values.push(value); - } - } - return values; - } - getMaxOverflow() { - return false; - } - getLabelAndValue(index) { - const meta = this._cachedMeta; - const iScale = meta.iScale; - const vScale = meta.vScale; - const parsed = this.getParsed(index); - return { - label: iScale ? '' + iScale.getLabelForValue(parsed[iScale.axis]) : '', - value: vScale ? '' + vScale.getLabelForValue(parsed[vScale.axis]) : '' - }; - } - _update(mode) { - const meta = this._cachedMeta; - this.update(mode || 'default'); - meta._clip = toClip(valueOrDefault(this.options.clip, defaultClip(meta.xScale, meta.yScale, this.getMaxOverflow()))); - } - update(mode) {} - draw() { - const ctx = this._ctx; - const chart = this.chart; - const meta = this._cachedMeta; - const elements = meta.data || []; - const area = chart.chartArea; - const active = []; - const start = this._drawStart || 0; - const count = this._drawCount || (elements.length - start); - const drawActiveElementsOnTop = this.options.drawActiveElementsOnTop; - let i; - if (meta.dataset) { - meta.dataset.draw(ctx, area, start, count); - } - for (i = start; i < start + count; ++i) { - const element = elements[i]; - if (element.hidden) { - continue; - } - if (element.active && drawActiveElementsOnTop) { - active.push(element); - } else { - element.draw(ctx, area); - } - } - for (i = 0; i < active.length; ++i) { - active[i].draw(ctx, area); - } - } - getStyle(index, active) { - const mode = active ? 'active' : 'default'; - return index === undefined && this._cachedMeta.dataset - ? this.resolveDatasetElementOptions(mode) - : this.resolveDataElementOptions(index || 0, mode); - } - getContext(index, active, mode) { - const dataset = this.getDataset(); - let context; - if (index >= 0 && index < this._cachedMeta.data.length) { - const element = this._cachedMeta.data[index]; - context = element.$context || - (element.$context = createDataContext(this.getContext(), index, element)); - context.parsed = this.getParsed(index); - context.raw = dataset.data[index]; - context.index = context.dataIndex = index; - } else { - context = this.$context || - (this.$context = createDatasetContext(this.chart.getContext(), this.index)); - context.dataset = dataset; - context.index = context.datasetIndex = this.index; - } - context.active = !!active; - context.mode = mode; - return context; - } - resolveDatasetElementOptions(mode) { - return this._resolveElementOptions(this.datasetElementType.id, mode); - } - resolveDataElementOptions(index, mode) { - return this._resolveElementOptions(this.dataElementType.id, mode, index); - } - _resolveElementOptions(elementType, mode = 'default', index) { - const active = mode === 'active'; - const cache = this._cachedDataOpts; - const cacheKey = elementType + '-' + mode; - const cached = cache[cacheKey]; - const sharing = this.enableOptionSharing && defined(index); - if (cached) { - return cloneIfNotShared(cached, sharing); - } - const config = this.chart.config; - const scopeKeys = config.datasetElementScopeKeys(this._type, elementType); - const prefixes = active ? [`${elementType}Hover`, 'hover', elementType, ''] : [elementType, '']; - const scopes = config.getOptionScopes(this.getDataset(), scopeKeys); - const names = Object.keys(defaults.elements[elementType]); - const context = () => this.getContext(index, active); - const values = config.resolveNamedOptions(scopes, names, context, prefixes); - if (values.$shared) { - values.$shared = sharing; - cache[cacheKey] = Object.freeze(cloneIfNotShared(values, sharing)); - } - return values; - } - _resolveAnimations(index, transition, active) { - const chart = this.chart; - const cache = this._cachedDataOpts; - const cacheKey = `animation-${transition}`; - const cached = cache[cacheKey]; - if (cached) { - return cached; - } - let options; - if (chart.options.animation !== false) { - const config = this.chart.config; - const scopeKeys = config.datasetAnimationScopeKeys(this._type, transition); - const scopes = config.getOptionScopes(this.getDataset(), scopeKeys); - options = config.createResolver(scopes, this.getContext(index, active, transition)); - } - const animations = new Animations(chart, options && options.animations); - if (options && options._cacheable) { - cache[cacheKey] = Object.freeze(animations); - } - return animations; - } - getSharedOptions(options) { - if (!options.$shared) { - return; - } - return this._sharedOptions || (this._sharedOptions = Object.assign({}, options)); - } - includeOptions(mode, sharedOptions) { - return !sharedOptions || isDirectUpdateMode(mode) || this.chart._animationsDisabled; - } - updateElement(element, index, properties, mode) { - if (isDirectUpdateMode(mode)) { - Object.assign(element, properties); - } else { - this._resolveAnimations(index, mode).update(element, properties); - } - } - updateSharedOptions(sharedOptions, mode, newOptions) { - if (sharedOptions && !isDirectUpdateMode(mode)) { - this._resolveAnimations(undefined, mode).update(sharedOptions, newOptions); - } - } - _setStyle(element, index, mode, active) { - element.active = active; - const options = this.getStyle(index, active); - this._resolveAnimations(index, mode, active).update(element, { - options: (!active && this.getSharedOptions(options)) || options - }); - } - removeHoverStyle(element, datasetIndex, index) { - this._setStyle(element, index, 'active', false); - } - setHoverStyle(element, datasetIndex, index) { - this._setStyle(element, index, 'active', true); - } - _removeDatasetHoverStyle() { - const element = this._cachedMeta.dataset; - if (element) { - this._setStyle(element, undefined, 'active', false); - } - } - _setDatasetHoverStyle() { - const element = this._cachedMeta.dataset; - if (element) { - this._setStyle(element, undefined, 'active', true); - } - } - _resyncElements(resetNewElements) { - const data = this._data; - const elements = this._cachedMeta.data; - for (const [method, arg1, arg2] of this._syncList) { - this[method](arg1, arg2); - } - this._syncList = []; - const numMeta = elements.length; - const numData = data.length; - const count = Math.min(numData, numMeta); - if (count) { - this.parse(0, count); - } - if (numData > numMeta) { - this._insertElements(numMeta, numData - numMeta, resetNewElements); - } else if (numData < numMeta) { - this._removeElements(numData, numMeta - numData); - } - } - _insertElements(start, count, resetNewElements = true) { - const meta = this._cachedMeta; - const data = meta.data; - const end = start + count; - let i; - const move = (arr) => { - arr.length += count; - for (i = arr.length - 1; i >= end; i--) { - arr[i] = arr[i - count]; - } - }; - move(data); - for (i = start; i < end; ++i) { - data[i] = new this.dataElementType(); - } - if (this._parsing) { - move(meta._parsed); - } - this.parse(start, count); - if (resetNewElements) { - this.updateElements(data, start, count, 'reset'); - } - } - updateElements(element, start, count, mode) {} - _removeElements(start, count) { - const meta = this._cachedMeta; - if (this._parsing) { - const removed = meta._parsed.splice(start, count); - if (meta._stacked) { - clearStacks(meta, removed); - } - } - meta.data.splice(start, count); - } - _sync(args) { - if (this._parsing) { - this._syncList.push(args); - } else { - const [method, arg1, arg2] = args; - this[method](arg1, arg2); - } - this.chart._dataChanges.push([this.index, ...args]); - } - _onDataPush() { - const count = arguments.length; - this._sync(['_insertElements', this.getDataset().data.length - count, count]); - } - _onDataPop() { - this._sync(['_removeElements', this._cachedMeta.data.length - 1, 1]); - } - _onDataShift() { - this._sync(['_removeElements', 0, 1]); - } - _onDataSplice(start, count) { - if (count) { - this._sync(['_removeElements', start, count]); - } - const newCount = arguments.length - 2; - if (newCount) { - this._sync(['_insertElements', start, newCount]); - } - } - _onDataUnshift() { - this._sync(['_insertElements', 0, arguments.length]); - } } -DatasetController.defaults = {}; -DatasetController.prototype.datasetElementType = null; -DatasetController.prototype.dataElementType = null; class Element { - constructor() { - this.x = undefined; - this.y = undefined; - this.active = false; - this.options = undefined; - this.$animations = undefined; - } - tooltipPosition(useFinalPosition) { - const {x, y} = this.getProps(['x', 'y'], useFinalPosition); - return {x, y}; - } - hasValue() { - return isNumber(this.x) && isNumber(this.y); - } - getProps(props, final) { - const anims = this.$animations; - if (!final || !anims) { - return this; + static defaults = {}; + static defaultRoutes = undefined; + active = false; + tooltipPosition(useFinalPosition) { + const { x , y } = this.getProps([ + 'x', + 'y' + ], useFinalPosition); + return { + x, + y + }; + } + hasValue() { + return isNumber(this.x) && isNumber(this.y); + } + getProps(props, final) { + const anims = this.$animations; + if (!final || !anims) { + // let's not create an object, if not needed + return this; + } + const ret = {}; + props.forEach((prop)=>{ + ret[prop] = anims[prop] && anims[prop].active() ? anims[prop]._to : this[prop]; + }); + return ret; } - const ret = {}; - props.forEach(prop => { - ret[prop] = anims[prop] && anims[prop].active() ? anims[prop]._to : this[prop]; - }); - return ret; - } } -Element.defaults = {}; -Element.defaultRoutes = undefined; - -const formatters = { - values(value) { - return isArray(value) ? value : '' + value; - }, - numeric(tickValue, index, ticks) { - if (tickValue === 0) { - return '0'; - } - const locale = this.chart.options.locale; - let notation; - let delta = tickValue; - if (ticks.length > 1) { - const maxTick = Math.max(Math.abs(ticks[0].value), Math.abs(ticks[ticks.length - 1].value)); - if (maxTick < 1e-4 || maxTick > 1e+15) { - notation = 'scientific'; - } - delta = calculateDelta(tickValue, ticks); - } - const logDelta = log10(Math.abs(delta)); - const numDecimal = Math.max(Math.min(-1 * Math.floor(logDelta), 20), 0); - const options = {notation, minimumFractionDigits: numDecimal, maximumFractionDigits: numDecimal}; - Object.assign(options, this.options.ticks.format); - return formatNumber(tickValue, locale, options); - }, - logarithmic(tickValue, index, ticks) { - if (tickValue === 0) { - return '0'; - } - const remain = tickValue / (Math.pow(10, Math.floor(log10(tickValue)))); - if (remain === 1 || remain === 2 || remain === 5) { - return formatters.numeric.call(this, tickValue, index, ticks); - } - return ''; - } -}; -function calculateDelta(tickValue, ticks) { - let delta = ticks.length > 3 ? ticks[2].value - ticks[1].value : ticks[1].value - ticks[0].value; - if (Math.abs(delta) >= 1 && tickValue !== Math.floor(tickValue)) { - delta = tickValue - Math.floor(tickValue); - } - return delta; -} -var Ticks = {formatters}; - -defaults.set('scale', { - display: true, - offset: false, - reverse: false, - beginAtZero: false, - bounds: 'ticks', - grace: 0, - grid: { - display: true, - lineWidth: 1, - drawBorder: true, - drawOnChartArea: true, - drawTicks: true, - tickLength: 8, - tickWidth: (_ctx, options) => options.lineWidth, - tickColor: (_ctx, options) => options.color, - offset: false, - borderDash: [], - borderDashOffset: 0.0, - borderWidth: 1 - }, - title: { - display: false, - text: '', - padding: { - top: 4, - bottom: 4 - } - }, - ticks: { - minRotation: 0, - maxRotation: 50, - mirror: false, - textStrokeWidth: 0, - textStrokeColor: '', - padding: 3, - display: true, - autoSkip: true, - autoSkipPadding: 3, - labelOffset: 0, - callback: Ticks.formatters.values, - minor: {}, - major: {}, - align: 'center', - crossAlign: 'near', - showLabelBackdrop: false, - backdropColor: 'rgba(255, 255, 255, 0.75)', - backdropPadding: 2, - } -}); -defaults.route('scale.ticks', 'color', '', 'color'); -defaults.route('scale.grid', 'color', '', 'borderColor'); -defaults.route('scale.grid', 'borderColor', '', 'borderColor'); -defaults.route('scale.title', 'color', '', 'color'); -defaults.describe('scale', { - _fallback: false, - _scriptable: (name) => !name.startsWith('before') && !name.startsWith('after') && name !== 'callback' && name !== 'parser', - _indexable: (name) => name !== 'borderDash' && name !== 'tickBorderDash', -}); -defaults.describe('scales', { - _fallback: 'scale', -}); -defaults.describe('scale.ticks', { - _scriptable: (name) => name !== 'backdropPadding' && name !== 'callback', - _indexable: (name) => name !== 'backdropPadding', -}); function autoSkip(scale, ticks) { - const tickOpts = scale.options.ticks; - const ticksLimit = tickOpts.maxTicksLimit || determineMaxTicks(scale); - const majorIndices = tickOpts.major.enabled ? getMajorIndices(ticks) : []; - const numMajorIndices = majorIndices.length; - const first = majorIndices[0]; - const last = majorIndices[numMajorIndices - 1]; - const newTicks = []; - if (numMajorIndices > ticksLimit) { - skipMajors(ticks, newTicks, majorIndices, numMajorIndices / ticksLimit); - return newTicks; - } - const spacing = calculateSpacing(majorIndices, ticks, ticksLimit); - if (numMajorIndices > 0) { - let i, ilen; - const avgMajorSpacing = numMajorIndices > 1 ? Math.round((last - first) / (numMajorIndices - 1)) : null; - skip(ticks, newTicks, spacing, isNullOrUndef(avgMajorSpacing) ? 0 : first - avgMajorSpacing, first); - for (i = 0, ilen = numMajorIndices - 1; i < ilen; i++) { - skip(ticks, newTicks, spacing, majorIndices[i], majorIndices[i + 1]); + const tickOpts = scale.options.ticks; + const determinedMaxTicks = determineMaxTicks(scale); + const ticksLimit = Math.min(tickOpts.maxTicksLimit || determinedMaxTicks, determinedMaxTicks); + const majorIndices = tickOpts.major.enabled ? getMajorIndices(ticks) : []; + const numMajorIndices = majorIndices.length; + const first = majorIndices[0]; + const last = majorIndices[numMajorIndices - 1]; + const newTicks = []; + if (numMajorIndices > ticksLimit) { + skipMajors(ticks, newTicks, majorIndices, numMajorIndices / ticksLimit); + return newTicks; } - skip(ticks, newTicks, spacing, last, isNullOrUndef(avgMajorSpacing) ? ticks.length : last + avgMajorSpacing); + const spacing = calculateSpacing(majorIndices, ticks, ticksLimit); + if (numMajorIndices > 0) { + let i, ilen; + const avgMajorSpacing = numMajorIndices > 1 ? Math.round((last - first) / (numMajorIndices - 1)) : null; + skip(ticks, newTicks, spacing, isNullOrUndef(avgMajorSpacing) ? 0 : first - avgMajorSpacing, first); + for(i = 0, ilen = numMajorIndices - 1; i < ilen; i++){ + skip(ticks, newTicks, spacing, majorIndices[i], majorIndices[i + 1]); + } + skip(ticks, newTicks, spacing, last, isNullOrUndef(avgMajorSpacing) ? ticks.length : last + avgMajorSpacing); + return newTicks; + } + skip(ticks, newTicks, spacing); return newTicks; - } - skip(ticks, newTicks, spacing); - return newTicks; } function determineMaxTicks(scale) { - const offset = scale.options.offset; - const tickLength = scale._tickSize(); - const maxScale = scale._length / tickLength + (offset ? 0 : 1); - const maxChart = scale._maxLength / tickLength; - return Math.floor(Math.min(maxScale, maxChart)); + const offset = scale.options.offset; + const tickLength = scale._tickSize(); + const maxScale = scale._length / tickLength + (offset ? 0 : 1); + const maxChart = scale._maxLength / tickLength; + return Math.floor(Math.min(maxScale, maxChart)); } -function calculateSpacing(majorIndices, ticks, ticksLimit) { - const evenMajorSpacing = getEvenSpacing(majorIndices); - const spacing = ticks.length / ticksLimit; - if (!evenMajorSpacing) { + function calculateSpacing(majorIndices, ticks, ticksLimit) { + const evenMajorSpacing = getEvenSpacing(majorIndices); + const spacing = ticks.length / ticksLimit; + if (!evenMajorSpacing) { + return Math.max(spacing, 1); + } + const factors = _factorize(evenMajorSpacing); + for(let i = 0, ilen = factors.length - 1; i < ilen; i++){ + const factor = factors[i]; + if (factor > spacing) { + return factor; + } + } return Math.max(spacing, 1); - } - const factors = _factorize(evenMajorSpacing); - for (let i = 0, ilen = factors.length - 1; i < ilen; i++) { - const factor = factors[i]; - if (factor > spacing) { - return factor; - } - } - return Math.max(spacing, 1); } -function getMajorIndices(ticks) { - const result = []; - let i, ilen; - for (i = 0, ilen = ticks.length; i < ilen; i++) { - if (ticks[i].major) { - result.push(i); - } - } - return result; -} -function skipMajors(ticks, newTicks, majorIndices, spacing) { - let count = 0; - let next = majorIndices[0]; - let i; - spacing = Math.ceil(spacing); - for (i = 0; i < ticks.length; i++) { - if (i === next) { - newTicks.push(ticks[i]); - count++; - next = majorIndices[count * spacing]; - } - } -} -function skip(ticks, newTicks, spacing, majorStart, majorEnd) { - const start = valueOrDefault(majorStart, 0); - const end = Math.min(valueOrDefault(majorEnd, ticks.length), ticks.length); - let count = 0; - let length, i, next; - spacing = Math.ceil(spacing); - if (majorEnd) { - length = majorEnd - majorStart; - spacing = length / Math.floor(length / spacing); - } - next = start; - while (next < 0) { - count++; - next = Math.round(start + count * spacing); - } - for (i = Math.max(start, 0); i < end; i++) { - if (i === next) { - newTicks.push(ticks[i]); - count++; - next = Math.round(start + count * spacing); - } - } -} -function getEvenSpacing(arr) { - const len = arr.length; - let i, diff; - if (len < 2) { - return false; - } - for (diff = arr[0], i = 1; i < len; ++i) { - if (arr[i] - arr[i - 1] !== diff) { - return false; - } - } - return diff; -} - -const reverseAlign = (align) => align === 'left' ? 'right' : align === 'right' ? 'left' : align; -const offsetFromEdge = (scale, edge, offset) => edge === 'top' || edge === 'left' ? scale[edge] + offset : scale[edge] - offset; -function sample(arr, numItems) { - const result = []; - const increment = arr.length / numItems; - const len = arr.length; - let i = 0; - for (; i < len; i += increment) { - result.push(arr[Math.floor(i)]); - } - return result; -} -function getPixelForGridLine(scale, index, offsetGridLines) { - const length = scale.ticks.length; - const validIndex = Math.min(index, length - 1); - const start = scale._startPixel; - const end = scale._endPixel; - const epsilon = 1e-6; - let lineValue = scale.getPixelForTick(validIndex); - let offset; - if (offsetGridLines) { - if (length === 1) { - offset = Math.max(lineValue - start, end - lineValue); - } else if (index === 0) { - offset = (scale.getPixelForTick(1) - lineValue) / 2; - } else { - offset = (lineValue - scale.getPixelForTick(validIndex - 1)) / 2; - } - lineValue += validIndex < index ? offset : -offset; - if (lineValue < start - epsilon || lineValue > end + epsilon) { - return; - } - } - return lineValue; -} -function garbageCollect(caches, length) { - each(caches, (cache) => { - const gc = cache.gc; - const gcLen = gc.length / 2; - let i; - if (gcLen > length) { - for (i = 0; i < gcLen; ++i) { - delete cache.data[gc[i]]; - } - gc.splice(0, gcLen); - } - }); -} -function getTickMarkLength(options) { - return options.drawTicks ? options.tickLength : 0; -} -function getTitleHeight(options, fallback) { - if (!options.display) { - return 0; - } - const font = toFont(options.font, fallback); - const padding = toPadding(options.padding); - const lines = isArray(options.text) ? options.text.length : 1; - return (lines * font.lineHeight) + padding.height; -} -function createScaleContext(parent, scale) { - return createContext(parent, { - scale, - type: 'scale' - }); -} -function createTickContext(parent, index, tick) { - return createContext(parent, { - tick, - index, - type: 'tick' - }); -} -function titleAlign(align, position, reverse) { - let ret = _toLeftRightCenter(align); - if ((reverse && position !== 'right') || (!reverse && position === 'right')) { - ret = reverseAlign(ret); - } - return ret; -} -function titleArgs(scale, offset, position, align) { - const {top, left, bottom, right, chart} = scale; - const {chartArea, scales} = chart; - let rotation = 0; - let maxWidth, titleX, titleY; - const height = bottom - top; - const width = right - left; - if (scale.isHorizontal()) { - titleX = _alignStartEnd(align, left, right); - if (isObject(position)) { - const positionAxisID = Object.keys(position)[0]; - const value = position[positionAxisID]; - titleY = scales[positionAxisID].getPixelForValue(value) + height - offset; - } else if (position === 'center') { - titleY = (chartArea.bottom + chartArea.top) / 2 + height - offset; - } else { - titleY = offsetFromEdge(scale, position, offset); - } - maxWidth = right - left; - } else { - if (isObject(position)) { - const positionAxisID = Object.keys(position)[0]; - const value = position[positionAxisID]; - titleX = scales[positionAxisID].getPixelForValue(value) - width + offset; - } else if (position === 'center') { - titleX = (chartArea.left + chartArea.right) / 2 - width + offset; - } else { - titleX = offsetFromEdge(scale, position, offset); - } - titleY = _alignStartEnd(align, bottom, top); - rotation = position === 'left' ? -HALF_PI : HALF_PI; - } - return {titleX, titleY, maxWidth, rotation}; -} -class Scale extends Element { - constructor(cfg) { - super(); - this.id = cfg.id; - this.type = cfg.type; - this.options = undefined; - this.ctx = cfg.ctx; - this.chart = cfg.chart; - this.top = undefined; - this.bottom = undefined; - this.left = undefined; - this.right = undefined; - this.width = undefined; - this.height = undefined; - this._margins = { - left: 0, - right: 0, - top: 0, - bottom: 0 - }; - this.maxWidth = undefined; - this.maxHeight = undefined; - this.paddingTop = undefined; - this.paddingBottom = undefined; - this.paddingLeft = undefined; - this.paddingRight = undefined; - this.axis = undefined; - this.labelRotation = undefined; - this.min = undefined; - this.max = undefined; - this._range = undefined; - this.ticks = []; - this._gridLineItems = null; - this._labelItems = null; - this._labelSizes = null; - this._length = 0; - this._maxLength = 0; - this._longestTextCache = {}; - this._startPixel = undefined; - this._endPixel = undefined; - this._reversePixels = false; - this._userMax = undefined; - this._userMin = undefined; - this._suggestedMax = undefined; - this._suggestedMin = undefined; - this._ticksLength = 0; - this._borderValue = 0; - this._cache = {}; - this._dataLimitsCached = false; - this.$context = undefined; - } - init(options) { - this.options = options.setContext(this.getContext()); - this.axis = options.axis; - this._userMin = this.parse(options.min); - this._userMax = this.parse(options.max); - this._suggestedMin = this.parse(options.suggestedMin); - this._suggestedMax = this.parse(options.suggestedMax); - } - parse(raw, index) { - return raw; - } - getUserBounds() { - let {_userMin, _userMax, _suggestedMin, _suggestedMax} = this; - _userMin = finiteOrDefault(_userMin, Number.POSITIVE_INFINITY); - _userMax = finiteOrDefault(_userMax, Number.NEGATIVE_INFINITY); - _suggestedMin = finiteOrDefault(_suggestedMin, Number.POSITIVE_INFINITY); - _suggestedMax = finiteOrDefault(_suggestedMax, Number.NEGATIVE_INFINITY); - return { - min: finiteOrDefault(_userMin, _suggestedMin), - max: finiteOrDefault(_userMax, _suggestedMax), - minDefined: isNumberFinite(_userMin), - maxDefined: isNumberFinite(_userMax) - }; - } - getMinMax(canStack) { - let {min, max, minDefined, maxDefined} = this.getUserBounds(); - let range; - if (minDefined && maxDefined) { - return {min, max}; - } - const metas = this.getMatchingVisibleMetas(); - for (let i = 0, ilen = metas.length; i < ilen; ++i) { - range = metas[i].controller.getMinMax(this, canStack); - if (!minDefined) { - min = Math.min(min, range.min); - } - if (!maxDefined) { - max = Math.max(max, range.max); - } - } - min = maxDefined && min > max ? max : min; - max = minDefined && min > max ? min : max; - return { - min: finiteOrDefault(min, finiteOrDefault(max, min)), - max: finiteOrDefault(max, finiteOrDefault(min, max)) - }; - } - getPadding() { - return { - left: this.paddingLeft || 0, - top: this.paddingTop || 0, - right: this.paddingRight || 0, - bottom: this.paddingBottom || 0 - }; - } - getTicks() { - return this.ticks; - } - getLabels() { - const data = this.chart.data; - return this.options.labels || (this.isHorizontal() ? data.xLabels : data.yLabels) || data.labels || []; - } - beforeLayout() { - this._cache = {}; - this._dataLimitsCached = false; - } - beforeUpdate() { - callback(this.options.beforeUpdate, [this]); - } - update(maxWidth, maxHeight, margins) { - const {beginAtZero, grace, ticks: tickOpts} = this.options; - const sampleSize = tickOpts.sampleSize; - this.beforeUpdate(); - this.maxWidth = maxWidth; - this.maxHeight = maxHeight; - this._margins = margins = Object.assign({ - left: 0, - right: 0, - top: 0, - bottom: 0 - }, margins); - this.ticks = null; - this._labelSizes = null; - this._gridLineItems = null; - this._labelItems = null; - this.beforeSetDimensions(); - this.setDimensions(); - this.afterSetDimensions(); - this._maxLength = this.isHorizontal() - ? this.width + margins.left + margins.right - : this.height + margins.top + margins.bottom; - if (!this._dataLimitsCached) { - this.beforeDataLimits(); - this.determineDataLimits(); - this.afterDataLimits(); - this._range = _addGrace(this, grace, beginAtZero); - this._dataLimitsCached = true; - } - this.beforeBuildTicks(); - this.ticks = this.buildTicks() || []; - this.afterBuildTicks(); - const samplingEnabled = sampleSize < this.ticks.length; - this._convertTicksToLabels(samplingEnabled ? sample(this.ticks, sampleSize) : this.ticks); - this.configure(); - this.beforeCalculateLabelRotation(); - this.calculateLabelRotation(); - this.afterCalculateLabelRotation(); - if (tickOpts.display && (tickOpts.autoSkip || tickOpts.source === 'auto')) { - this.ticks = autoSkip(this, this.ticks); - this._labelSizes = null; - this.afterAutoSkip(); - } - if (samplingEnabled) { - this._convertTicksToLabels(this.ticks); - } - this.beforeFit(); - this.fit(); - this.afterFit(); - this.afterUpdate(); - } - configure() { - let reversePixels = this.options.reverse; - let startPixel, endPixel; - if (this.isHorizontal()) { - startPixel = this.left; - endPixel = this.right; - } else { - startPixel = this.top; - endPixel = this.bottom; - reversePixels = !reversePixels; - } - this._startPixel = startPixel; - this._endPixel = endPixel; - this._reversePixels = reversePixels; - this._length = endPixel - startPixel; - this._alignToPixels = this.options.alignToPixels; - } - afterUpdate() { - callback(this.options.afterUpdate, [this]); - } - beforeSetDimensions() { - callback(this.options.beforeSetDimensions, [this]); - } - setDimensions() { - if (this.isHorizontal()) { - this.width = this.maxWidth; - this.left = 0; - this.right = this.width; - } else { - this.height = this.maxHeight; - this.top = 0; - this.bottom = this.height; - } - this.paddingLeft = 0; - this.paddingTop = 0; - this.paddingRight = 0; - this.paddingBottom = 0; - } - afterSetDimensions() { - callback(this.options.afterSetDimensions, [this]); - } - _callHooks(name) { - this.chart.notifyPlugins(name, this.getContext()); - callback(this.options[name], [this]); - } - beforeDataLimits() { - this._callHooks('beforeDataLimits'); - } - determineDataLimits() {} - afterDataLimits() { - this._callHooks('afterDataLimits'); - } - beforeBuildTicks() { - this._callHooks('beforeBuildTicks'); - } - buildTicks() { - return []; - } - afterBuildTicks() { - this._callHooks('afterBuildTicks'); - } - beforeTickToLabelConversion() { - callback(this.options.beforeTickToLabelConversion, [this]); - } - generateTickLabels(ticks) { - const tickOpts = this.options.ticks; - let i, ilen, tick; - for (i = 0, ilen = ticks.length; i < ilen; i++) { - tick = ticks[i]; - tick.label = callback(tickOpts.callback, [tick.value, i, ticks], this); - } - } - afterTickToLabelConversion() { - callback(this.options.afterTickToLabelConversion, [this]); - } - beforeCalculateLabelRotation() { - callback(this.options.beforeCalculateLabelRotation, [this]); - } - calculateLabelRotation() { - const options = this.options; - const tickOpts = options.ticks; - const numTicks = this.ticks.length; - const minRotation = tickOpts.minRotation || 0; - const maxRotation = tickOpts.maxRotation; - let labelRotation = minRotation; - let tickWidth, maxHeight, maxLabelDiagonal; - if (!this._isVisible() || !tickOpts.display || minRotation >= maxRotation || numTicks <= 1 || !this.isHorizontal()) { - this.labelRotation = minRotation; - return; - } - const labelSizes = this._getLabelSizes(); - const maxLabelWidth = labelSizes.widest.width; - const maxLabelHeight = labelSizes.highest.height; - const maxWidth = _limitValue(this.chart.width - maxLabelWidth, 0, this.maxWidth); - tickWidth = options.offset ? this.maxWidth / numTicks : maxWidth / (numTicks - 1); - if (maxLabelWidth + 6 > tickWidth) { - tickWidth = maxWidth / (numTicks - (options.offset ? 0.5 : 1)); - maxHeight = this.maxHeight - getTickMarkLength(options.grid) - - tickOpts.padding - getTitleHeight(options.title, this.chart.options.font); - maxLabelDiagonal = Math.sqrt(maxLabelWidth * maxLabelWidth + maxLabelHeight * maxLabelHeight); - labelRotation = toDegrees(Math.min( - Math.asin(_limitValue((labelSizes.highest.height + 6) / tickWidth, -1, 1)), - Math.asin(_limitValue(maxHeight / maxLabelDiagonal, -1, 1)) - Math.asin(_limitValue(maxLabelHeight / maxLabelDiagonal, -1, 1)) - )); - labelRotation = Math.max(minRotation, Math.min(maxRotation, labelRotation)); - } - this.labelRotation = labelRotation; - } - afterCalculateLabelRotation() { - callback(this.options.afterCalculateLabelRotation, [this]); - } - afterAutoSkip() {} - beforeFit() { - callback(this.options.beforeFit, [this]); - } - fit() { - const minSize = { - width: 0, - height: 0 - }; - const {chart, options: {ticks: tickOpts, title: titleOpts, grid: gridOpts}} = this; - const display = this._isVisible(); - const isHorizontal = this.isHorizontal(); - if (display) { - const titleHeight = getTitleHeight(titleOpts, chart.options.font); - if (isHorizontal) { - minSize.width = this.maxWidth; - minSize.height = getTickMarkLength(gridOpts) + titleHeight; - } else { - minSize.height = this.maxHeight; - minSize.width = getTickMarkLength(gridOpts) + titleHeight; - } - if (tickOpts.display && this.ticks.length) { - const {first, last, widest, highest} = this._getLabelSizes(); - const tickPadding = tickOpts.padding * 2; - const angleRadians = toRadians(this.labelRotation); - const cos = Math.cos(angleRadians); - const sin = Math.sin(angleRadians); - if (isHorizontal) { - const labelHeight = tickOpts.mirror ? 0 : sin * widest.width + cos * highest.height; - minSize.height = Math.min(this.maxHeight, minSize.height + labelHeight + tickPadding); - } else { - const labelWidth = tickOpts.mirror ? 0 : cos * widest.width + sin * highest.height; - minSize.width = Math.min(this.maxWidth, minSize.width + labelWidth + tickPadding); - } - this._calculatePadding(first, last, sin, cos); - } - } - this._handleMargins(); - if (isHorizontal) { - this.width = this._length = chart.width - this._margins.left - this._margins.right; - this.height = minSize.height; - } else { - this.width = minSize.width; - this.height = this._length = chart.height - this._margins.top - this._margins.bottom; - } - } - _calculatePadding(first, last, sin, cos) { - const {ticks: {align, padding}, position} = this.options; - const isRotated = this.labelRotation !== 0; - const labelsBelowTicks = position !== 'top' && this.axis === 'x'; - if (this.isHorizontal()) { - const offsetLeft = this.getPixelForTick(0) - this.left; - const offsetRight = this.right - this.getPixelForTick(this.ticks.length - 1); - let paddingLeft = 0; - let paddingRight = 0; - if (isRotated) { - if (labelsBelowTicks) { - paddingLeft = cos * first.width; - paddingRight = sin * last.height; - } else { - paddingLeft = sin * first.height; - paddingRight = cos * last.width; - } - } else if (align === 'start') { - paddingRight = last.width; - } else if (align === 'end') { - paddingLeft = first.width; - } else if (align !== 'inner') { - paddingLeft = first.width / 2; - paddingRight = last.width / 2; - } - this.paddingLeft = Math.max((paddingLeft - offsetLeft + padding) * this.width / (this.width - offsetLeft), 0); - this.paddingRight = Math.max((paddingRight - offsetRight + padding) * this.width / (this.width - offsetRight), 0); - } else { - let paddingTop = last.height / 2; - let paddingBottom = first.height / 2; - if (align === 'start') { - paddingTop = 0; - paddingBottom = first.height; - } else if (align === 'end') { - paddingTop = last.height; - paddingBottom = 0; - } - this.paddingTop = paddingTop + padding; - this.paddingBottom = paddingBottom + padding; - } - } - _handleMargins() { - if (this._margins) { - this._margins.left = Math.max(this.paddingLeft, this._margins.left); - this._margins.top = Math.max(this.paddingTop, this._margins.top); - this._margins.right = Math.max(this.paddingRight, this._margins.right); - this._margins.bottom = Math.max(this.paddingBottom, this._margins.bottom); - } - } - afterFit() { - callback(this.options.afterFit, [this]); - } - isHorizontal() { - const {axis, position} = this.options; - return position === 'top' || position === 'bottom' || axis === 'x'; - } - isFullSize() { - return this.options.fullSize; - } - _convertTicksToLabels(ticks) { - this.beforeTickToLabelConversion(); - this.generateTickLabels(ticks); - let i, ilen; - for (i = 0, ilen = ticks.length; i < ilen; i++) { - if (isNullOrUndef(ticks[i].label)) { - ticks.splice(i, 1); - ilen--; - i--; - } - } - this.afterTickToLabelConversion(); - } - _getLabelSizes() { - let labelSizes = this._labelSizes; - if (!labelSizes) { - const sampleSize = this.options.ticks.sampleSize; - let ticks = this.ticks; - if (sampleSize < ticks.length) { - ticks = sample(ticks, sampleSize); - } - this._labelSizes = labelSizes = this._computeLabelSizes(ticks, ticks.length); - } - return labelSizes; - } - _computeLabelSizes(ticks, length) { - const {ctx, _longestTextCache: caches} = this; - const widths = []; - const heights = []; - let widestLabelSize = 0; - let highestLabelSize = 0; - let i, j, jlen, label, tickFont, fontString, cache, lineHeight, width, height, nestedLabel; - for (i = 0; i < length; ++i) { - label = ticks[i].label; - tickFont = this._resolveTickFontOptions(i); - ctx.font = fontString = tickFont.string; - cache = caches[fontString] = caches[fontString] || {data: {}, gc: []}; - lineHeight = tickFont.lineHeight; - width = height = 0; - if (!isNullOrUndef(label) && !isArray(label)) { - width = _measureText(ctx, cache.data, cache.gc, width, label); - height = lineHeight; - } else if (isArray(label)) { - for (j = 0, jlen = label.length; j < jlen; ++j) { - nestedLabel = label[j]; - if (!isNullOrUndef(nestedLabel) && !isArray(nestedLabel)) { - width = _measureText(ctx, cache.data, cache.gc, width, nestedLabel); - height += lineHeight; - } - } - } - widths.push(width); - heights.push(height); - widestLabelSize = Math.max(width, widestLabelSize); - highestLabelSize = Math.max(height, highestLabelSize); - } - garbageCollect(caches, length); - const widest = widths.indexOf(widestLabelSize); - const highest = heights.indexOf(highestLabelSize); - const valueAt = (idx) => ({width: widths[idx] || 0, height: heights[idx] || 0}); - return { - first: valueAt(0), - last: valueAt(length - 1), - widest: valueAt(widest), - highest: valueAt(highest), - widths, - heights, - }; - } - getLabelForValue(value) { - return value; - } - getPixelForValue(value, index) { - return NaN; - } - getValueForPixel(pixel) {} - getPixelForTick(index) { - const ticks = this.ticks; - if (index < 0 || index > ticks.length - 1) { - return null; - } - return this.getPixelForValue(ticks[index].value); - } - getPixelForDecimal(decimal) { - if (this._reversePixels) { - decimal = 1 - decimal; - } - const pixel = this._startPixel + decimal * this._length; - return _int16Range(this._alignToPixels ? _alignPixel(this.chart, pixel, 0) : pixel); - } - getDecimalForPixel(pixel) { - const decimal = (pixel - this._startPixel) / this._length; - return this._reversePixels ? 1 - decimal : decimal; - } - getBasePixel() { - return this.getPixelForValue(this.getBaseValue()); - } - getBaseValue() { - const {min, max} = this; - return min < 0 && max < 0 ? max : - min > 0 && max > 0 ? min : - 0; - } - getContext(index) { - const ticks = this.ticks || []; - if (index >= 0 && index < ticks.length) { - const tick = ticks[index]; - return tick.$context || - (tick.$context = createTickContext(this.getContext(), index, tick)); - } - return this.$context || - (this.$context = createScaleContext(this.chart.getContext(), this)); - } - _tickSize() { - const optionTicks = this.options.ticks; - const rot = toRadians(this.labelRotation); - const cos = Math.abs(Math.cos(rot)); - const sin = Math.abs(Math.sin(rot)); - const labelSizes = this._getLabelSizes(); - const padding = optionTicks.autoSkipPadding || 0; - const w = labelSizes ? labelSizes.widest.width + padding : 0; - const h = labelSizes ? labelSizes.highest.height + padding : 0; - return this.isHorizontal() - ? h * cos > w * sin ? w / cos : h / sin - : h * sin < w * cos ? h / cos : w / sin; - } - _isVisible() { - const display = this.options.display; - if (display !== 'auto') { - return !!display; - } - return this.getMatchingVisibleMetas().length > 0; - } - _computeGridLineItems(chartArea) { - const axis = this.axis; - const chart = this.chart; - const options = this.options; - const {grid, position} = options; - const offset = grid.offset; - const isHorizontal = this.isHorizontal(); - const ticks = this.ticks; - const ticksLength = ticks.length + (offset ? 1 : 0); - const tl = getTickMarkLength(grid); - const items = []; - const borderOpts = grid.setContext(this.getContext()); - const axisWidth = borderOpts.drawBorder ? borderOpts.borderWidth : 0; - const axisHalfWidth = axisWidth / 2; - const alignBorderValue = function(pixel) { - return _alignPixel(chart, pixel, axisWidth); - }; - let borderValue, i, lineValue, alignedLineValue; - let tx1, ty1, tx2, ty2, x1, y1, x2, y2; - if (position === 'top') { - borderValue = alignBorderValue(this.bottom); - ty1 = this.bottom - tl; - ty2 = borderValue - axisHalfWidth; - y1 = alignBorderValue(chartArea.top) + axisHalfWidth; - y2 = chartArea.bottom; - } else if (position === 'bottom') { - borderValue = alignBorderValue(this.top); - y1 = chartArea.top; - y2 = alignBorderValue(chartArea.bottom) - axisHalfWidth; - ty1 = borderValue + axisHalfWidth; - ty2 = this.top + tl; - } else if (position === 'left') { - borderValue = alignBorderValue(this.right); - tx1 = this.right - tl; - tx2 = borderValue - axisHalfWidth; - x1 = alignBorderValue(chartArea.left) + axisHalfWidth; - x2 = chartArea.right; - } else if (position === 'right') { - borderValue = alignBorderValue(this.left); - x1 = chartArea.left; - x2 = alignBorderValue(chartArea.right) - axisHalfWidth; - tx1 = borderValue + axisHalfWidth; - tx2 = this.left + tl; - } else if (axis === 'x') { - if (position === 'center') { - borderValue = alignBorderValue((chartArea.top + chartArea.bottom) / 2 + 0.5); - } else if (isObject(position)) { - const positionAxisID = Object.keys(position)[0]; - const value = position[positionAxisID]; - borderValue = alignBorderValue(this.chart.scales[positionAxisID].getPixelForValue(value)); - } - y1 = chartArea.top; - y2 = chartArea.bottom; - ty1 = borderValue + axisHalfWidth; - ty2 = ty1 + tl; - } else if (axis === 'y') { - if (position === 'center') { - borderValue = alignBorderValue((chartArea.left + chartArea.right) / 2); - } else if (isObject(position)) { - const positionAxisID = Object.keys(position)[0]; - const value = position[positionAxisID]; - borderValue = alignBorderValue(this.chart.scales[positionAxisID].getPixelForValue(value)); - } - tx1 = borderValue - axisHalfWidth; - tx2 = tx1 - tl; - x1 = chartArea.left; - x2 = chartArea.right; - } - const limit = valueOrDefault(options.ticks.maxTicksLimit, ticksLength); - const step = Math.max(1, Math.ceil(ticksLength / limit)); - for (i = 0; i < ticksLength; i += step) { - const optsAtIndex = grid.setContext(this.getContext(i)); - const lineWidth = optsAtIndex.lineWidth; - const lineColor = optsAtIndex.color; - const borderDash = grid.borderDash || []; - const borderDashOffset = optsAtIndex.borderDashOffset; - const tickWidth = optsAtIndex.tickWidth; - const tickColor = optsAtIndex.tickColor; - const tickBorderDash = optsAtIndex.tickBorderDash || []; - const tickBorderDashOffset = optsAtIndex.tickBorderDashOffset; - lineValue = getPixelForGridLine(this, i, offset); - if (lineValue === undefined) { - continue; - } - alignedLineValue = _alignPixel(chart, lineValue, lineWidth); - if (isHorizontal) { - tx1 = tx2 = x1 = x2 = alignedLineValue; - } else { - ty1 = ty2 = y1 = y2 = alignedLineValue; - } - items.push({ - tx1, - ty1, - tx2, - ty2, - x1, - y1, - x2, - y2, - width: lineWidth, - color: lineColor, - borderDash, - borderDashOffset, - tickWidth, - tickColor, - tickBorderDash, - tickBorderDashOffset, - }); - } - this._ticksLength = ticksLength; - this._borderValue = borderValue; - return items; - } - _computeLabelItems(chartArea) { - const axis = this.axis; - const options = this.options; - const {position, ticks: optionTicks} = options; - const isHorizontal = this.isHorizontal(); - const ticks = this.ticks; - const {align, crossAlign, padding, mirror} = optionTicks; - const tl = getTickMarkLength(options.grid); - const tickAndPadding = tl + padding; - const hTickAndPadding = mirror ? -padding : tickAndPadding; - const rotation = -toRadians(this.labelRotation); - const items = []; - let i, ilen, tick, label, x, y, textAlign, pixel, font, lineHeight, lineCount, textOffset; - let textBaseline = 'middle'; - if (position === 'top') { - y = this.bottom - hTickAndPadding; - textAlign = this._getXAxisLabelAlignment(); - } else if (position === 'bottom') { - y = this.top + hTickAndPadding; - textAlign = this._getXAxisLabelAlignment(); - } else if (position === 'left') { - const ret = this._getYAxisLabelAlignment(tl); - textAlign = ret.textAlign; - x = ret.x; - } else if (position === 'right') { - const ret = this._getYAxisLabelAlignment(tl); - textAlign = ret.textAlign; - x = ret.x; - } else if (axis === 'x') { - if (position === 'center') { - y = ((chartArea.top + chartArea.bottom) / 2) + tickAndPadding; - } else if (isObject(position)) { - const positionAxisID = Object.keys(position)[0]; - const value = position[positionAxisID]; - y = this.chart.scales[positionAxisID].getPixelForValue(value) + tickAndPadding; - } - textAlign = this._getXAxisLabelAlignment(); - } else if (axis === 'y') { - if (position === 'center') { - x = ((chartArea.left + chartArea.right) / 2) - tickAndPadding; - } else if (isObject(position)) { - const positionAxisID = Object.keys(position)[0]; - const value = position[positionAxisID]; - x = this.chart.scales[positionAxisID].getPixelForValue(value); - } - textAlign = this._getYAxisLabelAlignment(tl).textAlign; - } - if (axis === 'y') { - if (align === 'start') { - textBaseline = 'top'; - } else if (align === 'end') { - textBaseline = 'bottom'; - } - } - const labelSizes = this._getLabelSizes(); - for (i = 0, ilen = ticks.length; i < ilen; ++i) { - tick = ticks[i]; - label = tick.label; - const optsAtIndex = optionTicks.setContext(this.getContext(i)); - pixel = this.getPixelForTick(i) + optionTicks.labelOffset; - font = this._resolveTickFontOptions(i); - lineHeight = font.lineHeight; - lineCount = isArray(label) ? label.length : 1; - const halfCount = lineCount / 2; - const color = optsAtIndex.color; - const strokeColor = optsAtIndex.textStrokeColor; - const strokeWidth = optsAtIndex.textStrokeWidth; - let tickTextAlign = textAlign; - if (isHorizontal) { - x = pixel; - if (textAlign === 'inner') { - if (i === ilen - 1) { - tickTextAlign = !this.options.reverse ? 'right' : 'left'; - } else if (i === 0) { - tickTextAlign = !this.options.reverse ? 'left' : 'right'; - } else { - tickTextAlign = 'center'; - } - } - if (position === 'top') { - if (crossAlign === 'near' || rotation !== 0) { - textOffset = -lineCount * lineHeight + lineHeight / 2; - } else if (crossAlign === 'center') { - textOffset = -labelSizes.highest.height / 2 - halfCount * lineHeight + lineHeight; - } else { - textOffset = -labelSizes.highest.height + lineHeight / 2; - } - } else { - if (crossAlign === 'near' || rotation !== 0) { - textOffset = lineHeight / 2; - } else if (crossAlign === 'center') { - textOffset = labelSizes.highest.height / 2 - halfCount * lineHeight; - } else { - textOffset = labelSizes.highest.height - lineCount * lineHeight; - } - } - if (mirror) { - textOffset *= -1; - } - } else { - y = pixel; - textOffset = (1 - lineCount) * lineHeight / 2; - } - let backdrop; - if (optsAtIndex.showLabelBackdrop) { - const labelPadding = toPadding(optsAtIndex.backdropPadding); - const height = labelSizes.heights[i]; - const width = labelSizes.widths[i]; - let top = y + textOffset - labelPadding.top; - let left = x - labelPadding.left; - switch (textBaseline) { - case 'middle': - top -= height / 2; - break; - case 'bottom': - top -= height; - break; - } - switch (textAlign) { - case 'center': - left -= width / 2; - break; - case 'right': - left -= width; - break; - } - backdrop = { - left, - top, - width: width + labelPadding.width, - height: height + labelPadding.height, - color: optsAtIndex.backdropColor, - }; - } - items.push({ - rotation, - label, - font, - color, - strokeColor, - strokeWidth, - textOffset, - textAlign: tickTextAlign, - textBaseline, - translation: [x, y], - backdrop, - }); - } - return items; - } - _getXAxisLabelAlignment() { - const {position, ticks} = this.options; - const rotation = -toRadians(this.labelRotation); - if (rotation) { - return position === 'top' ? 'left' : 'right'; - } - let align = 'center'; - if (ticks.align === 'start') { - align = 'left'; - } else if (ticks.align === 'end') { - align = 'right'; - } else if (ticks.align === 'inner') { - align = 'inner'; - } - return align; - } - _getYAxisLabelAlignment(tl) { - const {position, ticks: {crossAlign, mirror, padding}} = this.options; - const labelSizes = this._getLabelSizes(); - const tickAndPadding = tl + padding; - const widest = labelSizes.widest.width; - let textAlign; - let x; - if (position === 'left') { - if (mirror) { - x = this.right + padding; - if (crossAlign === 'near') { - textAlign = 'left'; - } else if (crossAlign === 'center') { - textAlign = 'center'; - x += (widest / 2); - } else { - textAlign = 'right'; - x += widest; - } - } else { - x = this.right - tickAndPadding; - if (crossAlign === 'near') { - textAlign = 'right'; - } else if (crossAlign === 'center') { - textAlign = 'center'; - x -= (widest / 2); - } else { - textAlign = 'left'; - x = this.left; - } - } - } else if (position === 'right') { - if (mirror) { - x = this.left + padding; - if (crossAlign === 'near') { - textAlign = 'right'; - } else if (crossAlign === 'center') { - textAlign = 'center'; - x -= (widest / 2); - } else { - textAlign = 'left'; - x -= widest; - } - } else { - x = this.left + tickAndPadding; - if (crossAlign === 'near') { - textAlign = 'left'; - } else if (crossAlign === 'center') { - textAlign = 'center'; - x += widest / 2; - } else { - textAlign = 'right'; - x = this.right; - } - } - } else { - textAlign = 'right'; - } - return {textAlign, x}; - } - _computeLabelArea() { - if (this.options.ticks.mirror) { - return; - } - const chart = this.chart; - const position = this.options.position; - if (position === 'left' || position === 'right') { - return {top: 0, left: this.left, bottom: chart.height, right: this.right}; - } if (position === 'top' || position === 'bottom') { - return {top: this.top, left: 0, bottom: this.bottom, right: chart.width}; - } - } - drawBackground() { - const {ctx, options: {backgroundColor}, left, top, width, height} = this; - if (backgroundColor) { - ctx.save(); - ctx.fillStyle = backgroundColor; - ctx.fillRect(left, top, width, height); - ctx.restore(); - } - } - getLineWidthForValue(value) { - const grid = this.options.grid; - if (!this._isVisible() || !grid.display) { - return 0; - } - const ticks = this.ticks; - const index = ticks.findIndex(t => t.value === value); - if (index >= 0) { - const opts = grid.setContext(this.getContext(index)); - return opts.lineWidth; - } - return 0; - } - drawGrid(chartArea) { - const grid = this.options.grid; - const ctx = this.ctx; - const items = this._gridLineItems || (this._gridLineItems = this._computeGridLineItems(chartArea)); - let i, ilen; - const drawLine = (p1, p2, style) => { - if (!style.width || !style.color) { - return; - } - ctx.save(); - ctx.lineWidth = style.width; - ctx.strokeStyle = style.color; - ctx.setLineDash(style.borderDash || []); - ctx.lineDashOffset = style.borderDashOffset; - ctx.beginPath(); - ctx.moveTo(p1.x, p1.y); - ctx.lineTo(p2.x, p2.y); - ctx.stroke(); - ctx.restore(); - }; - if (grid.display) { - for (i = 0, ilen = items.length; i < ilen; ++i) { - const item = items[i]; - if (grid.drawOnChartArea) { - drawLine( - {x: item.x1, y: item.y1}, - {x: item.x2, y: item.y2}, - item - ); - } - if (grid.drawTicks) { - drawLine( - {x: item.tx1, y: item.ty1}, - {x: item.tx2, y: item.ty2}, - { - color: item.tickColor, - width: item.tickWidth, - borderDash: item.tickBorderDash, - borderDashOffset: item.tickBorderDashOffset - } - ); - } - } - } - } - drawBorder() { - const {chart, ctx, options: {grid}} = this; - const borderOpts = grid.setContext(this.getContext()); - const axisWidth = grid.drawBorder ? borderOpts.borderWidth : 0; - if (!axisWidth) { - return; - } - const lastLineWidth = grid.setContext(this.getContext(0)).lineWidth; - const borderValue = this._borderValue; - let x1, x2, y1, y2; - if (this.isHorizontal()) { - x1 = _alignPixel(chart, this.left, axisWidth) - axisWidth / 2; - x2 = _alignPixel(chart, this.right, lastLineWidth) + lastLineWidth / 2; - y1 = y2 = borderValue; - } else { - y1 = _alignPixel(chart, this.top, axisWidth) - axisWidth / 2; - y2 = _alignPixel(chart, this.bottom, lastLineWidth) + lastLineWidth / 2; - x1 = x2 = borderValue; - } - ctx.save(); - ctx.lineWidth = borderOpts.borderWidth; - ctx.strokeStyle = borderOpts.borderColor; - ctx.beginPath(); - ctx.moveTo(x1, y1); - ctx.lineTo(x2, y2); - ctx.stroke(); - ctx.restore(); - } - drawLabels(chartArea) { - const optionTicks = this.options.ticks; - if (!optionTicks.display) { - return; - } - const ctx = this.ctx; - const area = this._computeLabelArea(); - if (area) { - clipArea(ctx, area); - } - const items = this._labelItems || (this._labelItems = this._computeLabelItems(chartArea)); - let i, ilen; - for (i = 0, ilen = items.length; i < ilen; ++i) { - const item = items[i]; - const tickFont = item.font; - const label = item.label; - if (item.backdrop) { - ctx.fillStyle = item.backdrop.color; - ctx.fillRect(item.backdrop.left, item.backdrop.top, item.backdrop.width, item.backdrop.height); - } - let y = item.textOffset; - renderText(ctx, label, 0, y, tickFont, item); - } - if (area) { - unclipArea(ctx); - } - } - drawTitle() { - const {ctx, options: {position, title, reverse}} = this; - if (!title.display) { - return; - } - const font = toFont(title.font); - const padding = toPadding(title.padding); - const align = title.align; - let offset = font.lineHeight / 2; - if (position === 'bottom' || position === 'center' || isObject(position)) { - offset += padding.bottom; - if (isArray(title.text)) { - offset += font.lineHeight * (title.text.length - 1); - } - } else { - offset += padding.top; - } - const {titleX, titleY, maxWidth, rotation} = titleArgs(this, offset, position, align); - renderText(ctx, title.text, 0, 0, font, { - color: title.color, - maxWidth, - rotation, - textAlign: titleAlign(align, position, reverse), - textBaseline: 'middle', - translation: [titleX, titleY], - }); - } - draw(chartArea) { - if (!this._isVisible()) { - return; - } - this.drawBackground(); - this.drawGrid(chartArea); - this.drawBorder(); - this.drawTitle(); - this.drawLabels(chartArea); - } - _layers() { - const opts = this.options; - const tz = opts.ticks && opts.ticks.z || 0; - const gz = valueOrDefault(opts.grid && opts.grid.z, -1); - if (!this._isVisible() || this.draw !== Scale.prototype.draw) { - return [{ - z: tz, - draw: (chartArea) => { - this.draw(chartArea); - } - }]; - } - return [{ - z: gz, - draw: (chartArea) => { - this.drawBackground(); - this.drawGrid(chartArea); - this.drawTitle(); - } - }, { - z: gz + 1, - draw: () => { - this.drawBorder(); - } - }, { - z: tz, - draw: (chartArea) => { - this.drawLabels(chartArea); - } - }]; - } - getMatchingVisibleMetas(type) { - const metas = this.chart.getSortedVisibleDatasetMetas(); - const axisID = this.axis + 'AxisID'; + function getMajorIndices(ticks) { const result = []; let i, ilen; - for (i = 0, ilen = metas.length; i < ilen; ++i) { - const meta = metas[i]; - if (meta[axisID] === this.id && (!type || meta.type === type)) { - result.push(meta); - } + for(i = 0, ilen = ticks.length; i < ilen; i++){ + if (ticks[i].major) { + result.push(i); + } } return result; - } - _resolveTickFontOptions(index) { - const opts = this.options.ticks.setContext(this.getContext(index)); - return toFont(opts.font); - } - _maxDigits() { - const fontSize = this._resolveTickFontOptions(0).lineHeight; - return (this.isHorizontal() ? this.width : this.height) / fontSize; - } +} + function skipMajors(ticks, newTicks, majorIndices, spacing) { + let count = 0; + let next = majorIndices[0]; + let i; + spacing = Math.ceil(spacing); + for(i = 0; i < ticks.length; i++){ + if (i === next) { + newTicks.push(ticks[i]); + count++; + next = majorIndices[count * spacing]; + } + } +} + function skip(ticks, newTicks, spacing, majorStart, majorEnd) { + const start = valueOrDefault(majorStart, 0); + const end = Math.min(valueOrDefault(majorEnd, ticks.length), ticks.length); + let count = 0; + let length, i, next; + spacing = Math.ceil(spacing); + if (majorEnd) { + length = majorEnd - majorStart; + spacing = length / Math.floor(length / spacing); + } + next = start; + while(next < 0){ + count++; + next = Math.round(start + count * spacing); + } + for(i = Math.max(start, 0); i < end; i++){ + if (i === next) { + newTicks.push(ticks[i]); + count++; + next = Math.round(start + count * spacing); + } + } +} + function getEvenSpacing(arr) { + const len = arr.length; + let i, diff; + if (len < 2) { + return false; + } + for(diff = arr[0], i = 1; i < len; ++i){ + if (arr[i] - arr[i - 1] !== diff) { + return false; + } + } + return diff; +} + +const reverseAlign = (align)=>align === 'left' ? 'right' : align === 'right' ? 'left' : align; +const offsetFromEdge = (scale, edge, offset)=>edge === 'top' || edge === 'left' ? scale[edge] + offset : scale[edge] - offset; +const getTicksLimit = (ticksLength, maxTicksLimit)=>Math.min(maxTicksLimit || ticksLength, ticksLength); + function sample(arr, numItems) { + const result = []; + const increment = arr.length / numItems; + const len = arr.length; + let i = 0; + for(; i < len; i += increment){ + result.push(arr[Math.floor(i)]); + } + return result; +} + function getPixelForGridLine(scale, index, offsetGridLines) { + const length = scale.ticks.length; + const validIndex = Math.min(index, length - 1); + const start = scale._startPixel; + const end = scale._endPixel; + const epsilon = 1e-6; + let lineValue = scale.getPixelForTick(validIndex); + let offset; + if (offsetGridLines) { + if (length === 1) { + offset = Math.max(lineValue - start, end - lineValue); + } else if (index === 0) { + offset = (scale.getPixelForTick(1) - lineValue) / 2; + } else { + offset = (lineValue - scale.getPixelForTick(validIndex - 1)) / 2; + } + lineValue += validIndex < index ? offset : -offset; + if (lineValue < start - epsilon || lineValue > end + epsilon) { + return; + } + } + return lineValue; +} + function garbageCollect(caches, length) { + each(caches, (cache)=>{ + const gc = cache.gc; + const gcLen = gc.length / 2; + let i; + if (gcLen > length) { + for(i = 0; i < gcLen; ++i){ + delete cache.data[gc[i]]; + } + gc.splice(0, gcLen); + } + }); +} + function getTickMarkLength(options) { + return options.drawTicks ? options.tickLength : 0; +} + function getTitleHeight(options, fallback) { + if (!options.display) { + return 0; + } + const font = toFont(options.font, fallback); + const padding = toPadding(options.padding); + const lines = isArray(options.text) ? options.text.length : 1; + return lines * font.lineHeight + padding.height; +} +function createScaleContext(parent, scale) { + return createContext(parent, { + scale, + type: 'scale' + }); +} +function createTickContext(parent, index, tick) { + return createContext(parent, { + tick, + index, + type: 'tick' + }); +} +function titleAlign(align, position, reverse) { + let ret = _toLeftRightCenter(align); + if (reverse && position !== 'right' || !reverse && position === 'right') { + ret = reverseAlign(ret); + } + return ret; +} +function titleArgs(scale, offset, position, align) { + const { top , left , bottom , right , chart } = scale; + const { chartArea , scales } = chart; + let rotation = 0; + let maxWidth, titleX, titleY; + const height = bottom - top; + const width = right - left; + if (scale.isHorizontal()) { + titleX = _alignStartEnd(align, left, right); + if (isObject(position)) { + const positionAxisID = Object.keys(position)[0]; + const value = position[positionAxisID]; + titleY = scales[positionAxisID].getPixelForValue(value) + height - offset; + } else if (position === 'center') { + titleY = (chartArea.bottom + chartArea.top) / 2 + height - offset; + } else { + titleY = offsetFromEdge(scale, position, offset); + } + maxWidth = right - left; + } else { + if (isObject(position)) { + const positionAxisID1 = Object.keys(position)[0]; + const value1 = position[positionAxisID1]; + titleX = scales[positionAxisID1].getPixelForValue(value1) - width + offset; + } else if (position === 'center') { + titleX = (chartArea.left + chartArea.right) / 2 - width + offset; + } else { + titleX = offsetFromEdge(scale, position, offset); + } + titleY = _alignStartEnd(align, bottom, top); + rotation = position === 'left' ? -HALF_PI : HALF_PI; + } + return { + titleX, + titleY, + maxWidth, + rotation + }; +} +class Scale extends Element { + constructor(cfg){ + super(); + this.id = cfg.id; + this.type = cfg.type; + this.options = undefined; + this.ctx = cfg.ctx; + this.chart = cfg.chart; + this.top = undefined; + this.bottom = undefined; + this.left = undefined; + this.right = undefined; + this.width = undefined; + this.height = undefined; + this._margins = { + left: 0, + right: 0, + top: 0, + bottom: 0 + }; + this.maxWidth = undefined; + this.maxHeight = undefined; + this.paddingTop = undefined; + this.paddingBottom = undefined; + this.paddingLeft = undefined; + this.paddingRight = undefined; + this.axis = undefined; + this.labelRotation = undefined; + this.min = undefined; + this.max = undefined; + this._range = undefined; + this.ticks = []; + this._gridLineItems = null; + this._labelItems = null; + this._labelSizes = null; + this._length = 0; + this._maxLength = 0; + this._longestTextCache = {}; + this._startPixel = undefined; + this._endPixel = undefined; + this._reversePixels = false; + this._userMax = undefined; + this._userMin = undefined; + this._suggestedMax = undefined; + this._suggestedMin = undefined; + this._ticksLength = 0; + this._borderValue = 0; + this._cache = {}; + this._dataLimitsCached = false; + this.$context = undefined; + } + init(options) { + this.options = options.setContext(this.getContext()); + this.axis = options.axis; + this._userMin = this.parse(options.min); + this._userMax = this.parse(options.max); + this._suggestedMin = this.parse(options.suggestedMin); + this._suggestedMax = this.parse(options.suggestedMax); + } + parse(raw, index) { + return raw; + } + getUserBounds() { + let { _userMin , _userMax , _suggestedMin , _suggestedMax } = this; + _userMin = finiteOrDefault(_userMin, Number.POSITIVE_INFINITY); + _userMax = finiteOrDefault(_userMax, Number.NEGATIVE_INFINITY); + _suggestedMin = finiteOrDefault(_suggestedMin, Number.POSITIVE_INFINITY); + _suggestedMax = finiteOrDefault(_suggestedMax, Number.NEGATIVE_INFINITY); + return { + min: finiteOrDefault(_userMin, _suggestedMin), + max: finiteOrDefault(_userMax, _suggestedMax), + minDefined: isNumberFinite(_userMin), + maxDefined: isNumberFinite(_userMax) + }; + } + getMinMax(canStack) { + let { min , max , minDefined , maxDefined } = this.getUserBounds(); + let range; + if (minDefined && maxDefined) { + return { + min, + max + }; + } + const metas = this.getMatchingVisibleMetas(); + for(let i = 0, ilen = metas.length; i < ilen; ++i){ + range = metas[i].controller.getMinMax(this, canStack); + if (!minDefined) { + min = Math.min(min, range.min); + } + if (!maxDefined) { + max = Math.max(max, range.max); + } + } + min = maxDefined && min > max ? max : min; + max = minDefined && min > max ? min : max; + return { + min: finiteOrDefault(min, finiteOrDefault(max, min)), + max: finiteOrDefault(max, finiteOrDefault(min, max)) + }; + } + getPadding() { + return { + left: this.paddingLeft || 0, + top: this.paddingTop || 0, + right: this.paddingRight || 0, + bottom: this.paddingBottom || 0 + }; + } + getTicks() { + return this.ticks; + } + getLabels() { + const data = this.chart.data; + return this.options.labels || (this.isHorizontal() ? data.xLabels : data.yLabels) || data.labels || []; + } + getLabelItems(chartArea = this.chart.chartArea) { + const items = this._labelItems || (this._labelItems = this._computeLabelItems(chartArea)); + return items; + } + beforeLayout() { + this._cache = {}; + this._dataLimitsCached = false; + } + beforeUpdate() { + callback(this.options.beforeUpdate, [ + this + ]); + } + update(maxWidth, maxHeight, margins) { + const { beginAtZero , grace , ticks: tickOpts } = this.options; + const sampleSize = tickOpts.sampleSize; + this.beforeUpdate(); + this.maxWidth = maxWidth; + this.maxHeight = maxHeight; + this._margins = margins = Object.assign({ + left: 0, + right: 0, + top: 0, + bottom: 0 + }, margins); + this.ticks = null; + this._labelSizes = null; + this._gridLineItems = null; + this._labelItems = null; + this.beforeSetDimensions(); + this.setDimensions(); + this.afterSetDimensions(); + this._maxLength = this.isHorizontal() ? this.width + margins.left + margins.right : this.height + margins.top + margins.bottom; + if (!this._dataLimitsCached) { + this.beforeDataLimits(); + this.determineDataLimits(); + this.afterDataLimits(); + this._range = _addGrace(this, grace, beginAtZero); + this._dataLimitsCached = true; + } + this.beforeBuildTicks(); + this.ticks = this.buildTicks() || []; + this.afterBuildTicks(); + const samplingEnabled = sampleSize < this.ticks.length; + this._convertTicksToLabels(samplingEnabled ? sample(this.ticks, sampleSize) : this.ticks); + this.configure(); + this.beforeCalculateLabelRotation(); + this.calculateLabelRotation(); + this.afterCalculateLabelRotation(); + if (tickOpts.display && (tickOpts.autoSkip || tickOpts.source === 'auto')) { + this.ticks = autoSkip(this, this.ticks); + this._labelSizes = null; + this.afterAutoSkip(); + } + if (samplingEnabled) { + this._convertTicksToLabels(this.ticks); + } + this.beforeFit(); + this.fit(); + this.afterFit(); + this.afterUpdate(); + } + configure() { + let reversePixels = this.options.reverse; + let startPixel, endPixel; + if (this.isHorizontal()) { + startPixel = this.left; + endPixel = this.right; + } else { + startPixel = this.top; + endPixel = this.bottom; + reversePixels = !reversePixels; + } + this._startPixel = startPixel; + this._endPixel = endPixel; + this._reversePixels = reversePixels; + this._length = endPixel - startPixel; + this._alignToPixels = this.options.alignToPixels; + } + afterUpdate() { + callback(this.options.afterUpdate, [ + this + ]); + } + beforeSetDimensions() { + callback(this.options.beforeSetDimensions, [ + this + ]); + } + setDimensions() { + if (this.isHorizontal()) { + this.width = this.maxWidth; + this.left = 0; + this.right = this.width; + } else { + this.height = this.maxHeight; + this.top = 0; + this.bottom = this.height; + } + this.paddingLeft = 0; + this.paddingTop = 0; + this.paddingRight = 0; + this.paddingBottom = 0; + } + afterSetDimensions() { + callback(this.options.afterSetDimensions, [ + this + ]); + } + _callHooks(name) { + this.chart.notifyPlugins(name, this.getContext()); + callback(this.options[name], [ + this + ]); + } + beforeDataLimits() { + this._callHooks('beforeDataLimits'); + } + determineDataLimits() {} + afterDataLimits() { + this._callHooks('afterDataLimits'); + } + beforeBuildTicks() { + this._callHooks('beforeBuildTicks'); + } + buildTicks() { + return []; + } + afterBuildTicks() { + this._callHooks('afterBuildTicks'); + } + beforeTickToLabelConversion() { + callback(this.options.beforeTickToLabelConversion, [ + this + ]); + } + generateTickLabels(ticks) { + const tickOpts = this.options.ticks; + let i, ilen, tick; + for(i = 0, ilen = ticks.length; i < ilen; i++){ + tick = ticks[i]; + tick.label = callback(tickOpts.callback, [ + tick.value, + i, + ticks + ], this); + } + } + afterTickToLabelConversion() { + callback(this.options.afterTickToLabelConversion, [ + this + ]); + } + beforeCalculateLabelRotation() { + callback(this.options.beforeCalculateLabelRotation, [ + this + ]); + } + calculateLabelRotation() { + const options = this.options; + const tickOpts = options.ticks; + const numTicks = getTicksLimit(this.ticks.length, options.ticks.maxTicksLimit); + const minRotation = tickOpts.minRotation || 0; + const maxRotation = tickOpts.maxRotation; + let labelRotation = minRotation; + let tickWidth, maxHeight, maxLabelDiagonal; + if (!this._isVisible() || !tickOpts.display || minRotation >= maxRotation || numTicks <= 1 || !this.isHorizontal()) { + this.labelRotation = minRotation; + return; + } + const labelSizes = this._getLabelSizes(); + const maxLabelWidth = labelSizes.widest.width; + const maxLabelHeight = labelSizes.highest.height; + const maxWidth = _limitValue(this.chart.width - maxLabelWidth, 0, this.maxWidth); + tickWidth = options.offset ? this.maxWidth / numTicks : maxWidth / (numTicks - 1); + if (maxLabelWidth + 6 > tickWidth) { + tickWidth = maxWidth / (numTicks - (options.offset ? 0.5 : 1)); + maxHeight = this.maxHeight - getTickMarkLength(options.grid) - tickOpts.padding - getTitleHeight(options.title, this.chart.options.font); + maxLabelDiagonal = Math.sqrt(maxLabelWidth * maxLabelWidth + maxLabelHeight * maxLabelHeight); + labelRotation = toDegrees(Math.min(Math.asin(_limitValue((labelSizes.highest.height + 6) / tickWidth, -1, 1)), Math.asin(_limitValue(maxHeight / maxLabelDiagonal, -1, 1)) - Math.asin(_limitValue(maxLabelHeight / maxLabelDiagonal, -1, 1)))); + labelRotation = Math.max(minRotation, Math.min(maxRotation, labelRotation)); + } + this.labelRotation = labelRotation; + } + afterCalculateLabelRotation() { + callback(this.options.afterCalculateLabelRotation, [ + this + ]); + } + afterAutoSkip() {} + beforeFit() { + callback(this.options.beforeFit, [ + this + ]); + } + fit() { + const minSize = { + width: 0, + height: 0 + }; + const { chart , options: { ticks: tickOpts , title: titleOpts , grid: gridOpts } } = this; + const display = this._isVisible(); + const isHorizontal = this.isHorizontal(); + if (display) { + const titleHeight = getTitleHeight(titleOpts, chart.options.font); + if (isHorizontal) { + minSize.width = this.maxWidth; + minSize.height = getTickMarkLength(gridOpts) + titleHeight; + } else { + minSize.height = this.maxHeight; + minSize.width = getTickMarkLength(gridOpts) + titleHeight; + } + if (tickOpts.display && this.ticks.length) { + const { first , last , widest , highest } = this._getLabelSizes(); + const tickPadding = tickOpts.padding * 2; + const angleRadians = toRadians(this.labelRotation); + const cos = Math.cos(angleRadians); + const sin = Math.sin(angleRadians); + if (isHorizontal) { + const labelHeight = tickOpts.mirror ? 0 : sin * widest.width + cos * highest.height; + minSize.height = Math.min(this.maxHeight, minSize.height + labelHeight + tickPadding); + } else { + const labelWidth = tickOpts.mirror ? 0 : cos * widest.width + sin * highest.height; + minSize.width = Math.min(this.maxWidth, minSize.width + labelWidth + tickPadding); + } + this._calculatePadding(first, last, sin, cos); + } + } + this._handleMargins(); + if (isHorizontal) { + this.width = this._length = chart.width - this._margins.left - this._margins.right; + this.height = minSize.height; + } else { + this.width = minSize.width; + this.height = this._length = chart.height - this._margins.top - this._margins.bottom; + } + } + _calculatePadding(first, last, sin, cos) { + const { ticks: { align , padding } , position } = this.options; + const isRotated = this.labelRotation !== 0; + const labelsBelowTicks = position !== 'top' && this.axis === 'x'; + if (this.isHorizontal()) { + const offsetLeft = this.getPixelForTick(0) - this.left; + const offsetRight = this.right - this.getPixelForTick(this.ticks.length - 1); + let paddingLeft = 0; + let paddingRight = 0; + if (isRotated) { + if (labelsBelowTicks) { + paddingLeft = cos * first.width; + paddingRight = sin * last.height; + } else { + paddingLeft = sin * first.height; + paddingRight = cos * last.width; + } + } else if (align === 'start') { + paddingRight = last.width; + } else if (align === 'end') { + paddingLeft = first.width; + } else if (align !== 'inner') { + paddingLeft = first.width / 2; + paddingRight = last.width / 2; + } + this.paddingLeft = Math.max((paddingLeft - offsetLeft + padding) * this.width / (this.width - offsetLeft), 0); + this.paddingRight = Math.max((paddingRight - offsetRight + padding) * this.width / (this.width - offsetRight), 0); + } else { + let paddingTop = last.height / 2; + let paddingBottom = first.height / 2; + if (align === 'start') { + paddingTop = 0; + paddingBottom = first.height; + } else if (align === 'end') { + paddingTop = last.height; + paddingBottom = 0; + } + this.paddingTop = paddingTop + padding; + this.paddingBottom = paddingBottom + padding; + } + } + _handleMargins() { + if (this._margins) { + this._margins.left = Math.max(this.paddingLeft, this._margins.left); + this._margins.top = Math.max(this.paddingTop, this._margins.top); + this._margins.right = Math.max(this.paddingRight, this._margins.right); + this._margins.bottom = Math.max(this.paddingBottom, this._margins.bottom); + } + } + afterFit() { + callback(this.options.afterFit, [ + this + ]); + } + isHorizontal() { + const { axis , position } = this.options; + return position === 'top' || position === 'bottom' || axis === 'x'; + } + isFullSize() { + return this.options.fullSize; + } + _convertTicksToLabels(ticks) { + this.beforeTickToLabelConversion(); + this.generateTickLabels(ticks); + let i, ilen; + for(i = 0, ilen = ticks.length; i < ilen; i++){ + if (isNullOrUndef(ticks[i].label)) { + ticks.splice(i, 1); + ilen--; + i--; + } + } + this.afterTickToLabelConversion(); + } + _getLabelSizes() { + let labelSizes = this._labelSizes; + if (!labelSizes) { + const sampleSize = this.options.ticks.sampleSize; + let ticks = this.ticks; + if (sampleSize < ticks.length) { + ticks = sample(ticks, sampleSize); + } + this._labelSizes = labelSizes = this._computeLabelSizes(ticks, ticks.length, this.options.ticks.maxTicksLimit); + } + return labelSizes; + } + _computeLabelSizes(ticks, length, maxTicksLimit) { + const { ctx , _longestTextCache: caches } = this; + const widths = []; + const heights = []; + const increment = Math.floor(length / getTicksLimit(length, maxTicksLimit)); + let widestLabelSize = 0; + let highestLabelSize = 0; + let i, j, jlen, label, tickFont, fontString, cache, lineHeight, width, height, nestedLabel; + for(i = 0; i < length; i += increment){ + label = ticks[i].label; + tickFont = this._resolveTickFontOptions(i); + ctx.font = fontString = tickFont.string; + cache = caches[fontString] = caches[fontString] || { + data: {}, + gc: [] + }; + lineHeight = tickFont.lineHeight; + width = height = 0; + if (!isNullOrUndef(label) && !isArray(label)) { + width = _measureText(ctx, cache.data, cache.gc, width, label); + height = lineHeight; + } else if (isArray(label)) { + for(j = 0, jlen = label.length; j < jlen; ++j){ + nestedLabel = label[j]; + if (!isNullOrUndef(nestedLabel) && !isArray(nestedLabel)) { + width = _measureText(ctx, cache.data, cache.gc, width, nestedLabel); + height += lineHeight; + } + } + } + widths.push(width); + heights.push(height); + widestLabelSize = Math.max(width, widestLabelSize); + highestLabelSize = Math.max(height, highestLabelSize); + } + garbageCollect(caches, length); + const widest = widths.indexOf(widestLabelSize); + const highest = heights.indexOf(highestLabelSize); + const valueAt = (idx)=>({ + width: widths[idx] || 0, + height: heights[idx] || 0 + }); + return { + first: valueAt(0), + last: valueAt(length - 1), + widest: valueAt(widest), + highest: valueAt(highest), + widths, + heights + }; + } + getLabelForValue(value) { + return value; + } + getPixelForValue(value, index) { + return NaN; + } + getValueForPixel(pixel) {} + getPixelForTick(index) { + const ticks = this.ticks; + if (index < 0 || index > ticks.length - 1) { + return null; + } + return this.getPixelForValue(ticks[index].value); + } + getPixelForDecimal(decimal) { + if (this._reversePixels) { + decimal = 1 - decimal; + } + const pixel = this._startPixel + decimal * this._length; + return _int16Range(this._alignToPixels ? _alignPixel(this.chart, pixel, 0) : pixel); + } + getDecimalForPixel(pixel) { + const decimal = (pixel - this._startPixel) / this._length; + return this._reversePixels ? 1 - decimal : decimal; + } + getBasePixel() { + return this.getPixelForValue(this.getBaseValue()); + } + getBaseValue() { + const { min , max } = this; + return min < 0 && max < 0 ? max : min > 0 && max > 0 ? min : 0; + } + getContext(index) { + const ticks = this.ticks || []; + if (index >= 0 && index < ticks.length) { + const tick = ticks[index]; + return tick.$context || (tick.$context = createTickContext(this.getContext(), index, tick)); + } + return this.$context || (this.$context = createScaleContext(this.chart.getContext(), this)); + } + _tickSize() { + const optionTicks = this.options.ticks; + const rot = toRadians(this.labelRotation); + const cos = Math.abs(Math.cos(rot)); + const sin = Math.abs(Math.sin(rot)); + const labelSizes = this._getLabelSizes(); + const padding = optionTicks.autoSkipPadding || 0; + const w = labelSizes ? labelSizes.widest.width + padding : 0; + const h = labelSizes ? labelSizes.highest.height + padding : 0; + return this.isHorizontal() ? h * cos > w * sin ? w / cos : h / sin : h * sin < w * cos ? h / cos : w / sin; + } + _isVisible() { + const display = this.options.display; + if (display !== 'auto') { + return !!display; + } + return this.getMatchingVisibleMetas().length > 0; + } + _computeGridLineItems(chartArea) { + const axis = this.axis; + const chart = this.chart; + const options = this.options; + const { grid , position , border } = options; + const offset = grid.offset; + const isHorizontal = this.isHorizontal(); + const ticks = this.ticks; + const ticksLength = ticks.length + (offset ? 1 : 0); + const tl = getTickMarkLength(grid); + const items = []; + const borderOpts = border.setContext(this.getContext()); + const axisWidth = borderOpts.display ? borderOpts.width : 0; + const axisHalfWidth = axisWidth / 2; + const alignBorderValue = function(pixel) { + return _alignPixel(chart, pixel, axisWidth); + }; + let borderValue, i, lineValue, alignedLineValue; + let tx1, ty1, tx2, ty2, x1, y1, x2, y2; + if (position === 'top') { + borderValue = alignBorderValue(this.bottom); + ty1 = this.bottom - tl; + ty2 = borderValue - axisHalfWidth; + y1 = alignBorderValue(chartArea.top) + axisHalfWidth; + y2 = chartArea.bottom; + } else if (position === 'bottom') { + borderValue = alignBorderValue(this.top); + y1 = chartArea.top; + y2 = alignBorderValue(chartArea.bottom) - axisHalfWidth; + ty1 = borderValue + axisHalfWidth; + ty2 = this.top + tl; + } else if (position === 'left') { + borderValue = alignBorderValue(this.right); + tx1 = this.right - tl; + tx2 = borderValue - axisHalfWidth; + x1 = alignBorderValue(chartArea.left) + axisHalfWidth; + x2 = chartArea.right; + } else if (position === 'right') { + borderValue = alignBorderValue(this.left); + x1 = chartArea.left; + x2 = alignBorderValue(chartArea.right) - axisHalfWidth; + tx1 = borderValue + axisHalfWidth; + tx2 = this.left + tl; + } else if (axis === 'x') { + if (position === 'center') { + borderValue = alignBorderValue((chartArea.top + chartArea.bottom) / 2 + 0.5); + } else if (isObject(position)) { + const positionAxisID = Object.keys(position)[0]; + const value = position[positionAxisID]; + borderValue = alignBorderValue(this.chart.scales[positionAxisID].getPixelForValue(value)); + } + y1 = chartArea.top; + y2 = chartArea.bottom; + ty1 = borderValue + axisHalfWidth; + ty2 = ty1 + tl; + } else if (axis === 'y') { + if (position === 'center') { + borderValue = alignBorderValue((chartArea.left + chartArea.right) / 2); + } else if (isObject(position)) { + const positionAxisID1 = Object.keys(position)[0]; + const value1 = position[positionAxisID1]; + borderValue = alignBorderValue(this.chart.scales[positionAxisID1].getPixelForValue(value1)); + } + tx1 = borderValue - axisHalfWidth; + tx2 = tx1 - tl; + x1 = chartArea.left; + x2 = chartArea.right; + } + const limit = valueOrDefault(options.ticks.maxTicksLimit, ticksLength); + const step = Math.max(1, Math.ceil(ticksLength / limit)); + for(i = 0; i < ticksLength; i += step){ + const context = this.getContext(i); + const optsAtIndex = grid.setContext(context); + const optsAtIndexBorder = border.setContext(context); + const lineWidth = optsAtIndex.lineWidth; + const lineColor = optsAtIndex.color; + const borderDash = optsAtIndexBorder.dash || []; + const borderDashOffset = optsAtIndexBorder.dashOffset; + const tickWidth = optsAtIndex.tickWidth; + const tickColor = optsAtIndex.tickColor; + const tickBorderDash = optsAtIndex.tickBorderDash || []; + const tickBorderDashOffset = optsAtIndex.tickBorderDashOffset; + lineValue = getPixelForGridLine(this, i, offset); + if (lineValue === undefined) { + continue; + } + alignedLineValue = _alignPixel(chart, lineValue, lineWidth); + if (isHorizontal) { + tx1 = tx2 = x1 = x2 = alignedLineValue; + } else { + ty1 = ty2 = y1 = y2 = alignedLineValue; + } + items.push({ + tx1, + ty1, + tx2, + ty2, + x1, + y1, + x2, + y2, + width: lineWidth, + color: lineColor, + borderDash, + borderDashOffset, + tickWidth, + tickColor, + tickBorderDash, + tickBorderDashOffset + }); + } + this._ticksLength = ticksLength; + this._borderValue = borderValue; + return items; + } + _computeLabelItems(chartArea) { + const axis = this.axis; + const options = this.options; + const { position , ticks: optionTicks } = options; + const isHorizontal = this.isHorizontal(); + const ticks = this.ticks; + const { align , crossAlign , padding , mirror } = optionTicks; + const tl = getTickMarkLength(options.grid); + const tickAndPadding = tl + padding; + const hTickAndPadding = mirror ? -padding : tickAndPadding; + const rotation = -toRadians(this.labelRotation); + const items = []; + let i, ilen, tick, label, x, y, textAlign, pixel, font, lineHeight, lineCount, textOffset; + let textBaseline = 'middle'; + if (position === 'top') { + y = this.bottom - hTickAndPadding; + textAlign = this._getXAxisLabelAlignment(); + } else if (position === 'bottom') { + y = this.top + hTickAndPadding; + textAlign = this._getXAxisLabelAlignment(); + } else if (position === 'left') { + const ret = this._getYAxisLabelAlignment(tl); + textAlign = ret.textAlign; + x = ret.x; + } else if (position === 'right') { + const ret1 = this._getYAxisLabelAlignment(tl); + textAlign = ret1.textAlign; + x = ret1.x; + } else if (axis === 'x') { + if (position === 'center') { + y = (chartArea.top + chartArea.bottom) / 2 + tickAndPadding; + } else if (isObject(position)) { + const positionAxisID = Object.keys(position)[0]; + const value = position[positionAxisID]; + y = this.chart.scales[positionAxisID].getPixelForValue(value) + tickAndPadding; + } + textAlign = this._getXAxisLabelAlignment(); + } else if (axis === 'y') { + if (position === 'center') { + x = (chartArea.left + chartArea.right) / 2 - tickAndPadding; + } else if (isObject(position)) { + const positionAxisID1 = Object.keys(position)[0]; + const value1 = position[positionAxisID1]; + x = this.chart.scales[positionAxisID1].getPixelForValue(value1); + } + textAlign = this._getYAxisLabelAlignment(tl).textAlign; + } + if (axis === 'y') { + if (align === 'start') { + textBaseline = 'top'; + } else if (align === 'end') { + textBaseline = 'bottom'; + } + } + const labelSizes = this._getLabelSizes(); + for(i = 0, ilen = ticks.length; i < ilen; ++i){ + tick = ticks[i]; + label = tick.label; + const optsAtIndex = optionTicks.setContext(this.getContext(i)); + pixel = this.getPixelForTick(i) + optionTicks.labelOffset; + font = this._resolveTickFontOptions(i); + lineHeight = font.lineHeight; + lineCount = isArray(label) ? label.length : 1; + const halfCount = lineCount / 2; + const color = optsAtIndex.color; + const strokeColor = optsAtIndex.textStrokeColor; + const strokeWidth = optsAtIndex.textStrokeWidth; + let tickTextAlign = textAlign; + if (isHorizontal) { + x = pixel; + if (textAlign === 'inner') { + if (i === ilen - 1) { + tickTextAlign = !this.options.reverse ? 'right' : 'left'; + } else if (i === 0) { + tickTextAlign = !this.options.reverse ? 'left' : 'right'; + } else { + tickTextAlign = 'center'; + } + } + if (position === 'top') { + if (crossAlign === 'near' || rotation !== 0) { + textOffset = -lineCount * lineHeight + lineHeight / 2; + } else if (crossAlign === 'center') { + textOffset = -labelSizes.highest.height / 2 - halfCount * lineHeight + lineHeight; + } else { + textOffset = -labelSizes.highest.height + lineHeight / 2; + } + } else { + if (crossAlign === 'near' || rotation !== 0) { + textOffset = lineHeight / 2; + } else if (crossAlign === 'center') { + textOffset = labelSizes.highest.height / 2 - halfCount * lineHeight; + } else { + textOffset = labelSizes.highest.height - lineCount * lineHeight; + } + } + if (mirror) { + textOffset *= -1; + } + if (rotation !== 0 && !optsAtIndex.showLabelBackdrop) { + x += lineHeight / 2 * Math.sin(rotation); + } + } else { + y = pixel; + textOffset = (1 - lineCount) * lineHeight / 2; + } + let backdrop; + if (optsAtIndex.showLabelBackdrop) { + const labelPadding = toPadding(optsAtIndex.backdropPadding); + const height = labelSizes.heights[i]; + const width = labelSizes.widths[i]; + let top = textOffset - labelPadding.top; + let left = 0 - labelPadding.left; + switch(textBaseline){ + case 'middle': + top -= height / 2; + break; + case 'bottom': + top -= height; + break; + } + switch(textAlign){ + case 'center': + left -= width / 2; + break; + case 'right': + left -= width; + break; + } + backdrop = { + left, + top, + width: width + labelPadding.width, + height: height + labelPadding.height, + color: optsAtIndex.backdropColor + }; + } + items.push({ + label, + font, + textOffset, + options: { + rotation, + color, + strokeColor, + strokeWidth, + textAlign: tickTextAlign, + textBaseline, + translation: [ + x, + y + ], + backdrop + } + }); + } + return items; + } + _getXAxisLabelAlignment() { + const { position , ticks } = this.options; + const rotation = -toRadians(this.labelRotation); + if (rotation) { + return position === 'top' ? 'left' : 'right'; + } + let align = 'center'; + if (ticks.align === 'start') { + align = 'left'; + } else if (ticks.align === 'end') { + align = 'right'; + } else if (ticks.align === 'inner') { + align = 'inner'; + } + return align; + } + _getYAxisLabelAlignment(tl) { + const { position , ticks: { crossAlign , mirror , padding } } = this.options; + const labelSizes = this._getLabelSizes(); + const tickAndPadding = tl + padding; + const widest = labelSizes.widest.width; + let textAlign; + let x; + if (position === 'left') { + if (mirror) { + x = this.right + padding; + if (crossAlign === 'near') { + textAlign = 'left'; + } else if (crossAlign === 'center') { + textAlign = 'center'; + x += widest / 2; + } else { + textAlign = 'right'; + x += widest; + } + } else { + x = this.right - tickAndPadding; + if (crossAlign === 'near') { + textAlign = 'right'; + } else if (crossAlign === 'center') { + textAlign = 'center'; + x -= widest / 2; + } else { + textAlign = 'left'; + x = this.left; + } + } + } else if (position === 'right') { + if (mirror) { + x = this.left + padding; + if (crossAlign === 'near') { + textAlign = 'right'; + } else if (crossAlign === 'center') { + textAlign = 'center'; + x -= widest / 2; + } else { + textAlign = 'left'; + x -= widest; + } + } else { + x = this.left + tickAndPadding; + if (crossAlign === 'near') { + textAlign = 'left'; + } else if (crossAlign === 'center') { + textAlign = 'center'; + x += widest / 2; + } else { + textAlign = 'right'; + x = this.right; + } + } + } else { + textAlign = 'right'; + } + return { + textAlign, + x + }; + } + _computeLabelArea() { + if (this.options.ticks.mirror) { + return; + } + const chart = this.chart; + const position = this.options.position; + if (position === 'left' || position === 'right') { + return { + top: 0, + left: this.left, + bottom: chart.height, + right: this.right + }; + } + if (position === 'top' || position === 'bottom') { + return { + top: this.top, + left: 0, + bottom: this.bottom, + right: chart.width + }; + } + } + drawBackground() { + const { ctx , options: { backgroundColor } , left , top , width , height } = this; + if (backgroundColor) { + ctx.save(); + ctx.fillStyle = backgroundColor; + ctx.fillRect(left, top, width, height); + ctx.restore(); + } + } + getLineWidthForValue(value) { + const grid = this.options.grid; + if (!this._isVisible() || !grid.display) { + return 0; + } + const ticks = this.ticks; + const index = ticks.findIndex((t)=>t.value === value); + if (index >= 0) { + const opts = grid.setContext(this.getContext(index)); + return opts.lineWidth; + } + return 0; + } + drawGrid(chartArea) { + const grid = this.options.grid; + const ctx = this.ctx; + const items = this._gridLineItems || (this._gridLineItems = this._computeGridLineItems(chartArea)); + let i, ilen; + const drawLine = (p1, p2, style)=>{ + if (!style.width || !style.color) { + return; + } + ctx.save(); + ctx.lineWidth = style.width; + ctx.strokeStyle = style.color; + ctx.setLineDash(style.borderDash || []); + ctx.lineDashOffset = style.borderDashOffset; + ctx.beginPath(); + ctx.moveTo(p1.x, p1.y); + ctx.lineTo(p2.x, p2.y); + ctx.stroke(); + ctx.restore(); + }; + if (grid.display) { + for(i = 0, ilen = items.length; i < ilen; ++i){ + const item = items[i]; + if (grid.drawOnChartArea) { + drawLine({ + x: item.x1, + y: item.y1 + }, { + x: item.x2, + y: item.y2 + }, item); + } + if (grid.drawTicks) { + drawLine({ + x: item.tx1, + y: item.ty1 + }, { + x: item.tx2, + y: item.ty2 + }, { + color: item.tickColor, + width: item.tickWidth, + borderDash: item.tickBorderDash, + borderDashOffset: item.tickBorderDashOffset + }); + } + } + } + } + drawBorder() { + const { chart , ctx , options: { border , grid } } = this; + const borderOpts = border.setContext(this.getContext()); + const axisWidth = border.display ? borderOpts.width : 0; + if (!axisWidth) { + return; + } + const lastLineWidth = grid.setContext(this.getContext(0)).lineWidth; + const borderValue = this._borderValue; + let x1, x2, y1, y2; + if (this.isHorizontal()) { + x1 = _alignPixel(chart, this.left, axisWidth) - axisWidth / 2; + x2 = _alignPixel(chart, this.right, lastLineWidth) + lastLineWidth / 2; + y1 = y2 = borderValue; + } else { + y1 = _alignPixel(chart, this.top, axisWidth) - axisWidth / 2; + y2 = _alignPixel(chart, this.bottom, lastLineWidth) + lastLineWidth / 2; + x1 = x2 = borderValue; + } + ctx.save(); + ctx.lineWidth = borderOpts.width; + ctx.strokeStyle = borderOpts.color; + ctx.beginPath(); + ctx.moveTo(x1, y1); + ctx.lineTo(x2, y2); + ctx.stroke(); + ctx.restore(); + } + drawLabels(chartArea) { + const optionTicks = this.options.ticks; + if (!optionTicks.display) { + return; + } + const ctx = this.ctx; + const area = this._computeLabelArea(); + if (area) { + clipArea(ctx, area); + } + const items = this.getLabelItems(chartArea); + for (const item of items){ + const renderTextOptions = item.options; + const tickFont = item.font; + const label = item.label; + const y = item.textOffset; + renderText(ctx, label, 0, y, tickFont, renderTextOptions); + } + if (area) { + unclipArea(ctx); + } + } + drawTitle() { + const { ctx , options: { position , title , reverse } } = this; + if (!title.display) { + return; + } + const font = toFont(title.font); + const padding = toPadding(title.padding); + const align = title.align; + let offset = font.lineHeight / 2; + if (position === 'bottom' || position === 'center' || isObject(position)) { + offset += padding.bottom; + if (isArray(title.text)) { + offset += font.lineHeight * (title.text.length - 1); + } + } else { + offset += padding.top; + } + const { titleX , titleY , maxWidth , rotation } = titleArgs(this, offset, position, align); + renderText(ctx, title.text, 0, 0, font, { + color: title.color, + maxWidth, + rotation, + textAlign: titleAlign(align, position, reverse), + textBaseline: 'middle', + translation: [ + titleX, + titleY + ] + }); + } + draw(chartArea) { + if (!this._isVisible()) { + return; + } + this.drawBackground(); + this.drawGrid(chartArea); + this.drawBorder(); + this.drawTitle(); + this.drawLabels(chartArea); + } + _layers() { + const opts = this.options; + const tz = opts.ticks && opts.ticks.z || 0; + const gz = valueOrDefault(opts.grid && opts.grid.z, -1); + const bz = valueOrDefault(opts.border && opts.border.z, 0); + if (!this._isVisible() || this.draw !== Scale.prototype.draw) { + return [ + { + z: tz, + draw: (chartArea)=>{ + this.draw(chartArea); + } + } + ]; + } + return [ + { + z: gz, + draw: (chartArea)=>{ + this.drawBackground(); + this.drawGrid(chartArea); + this.drawTitle(); + } + }, + { + z: bz, + draw: ()=>{ + this.drawBorder(); + } + }, + { + z: tz, + draw: (chartArea)=>{ + this.drawLabels(chartArea); + } + } + ]; + } + getMatchingVisibleMetas(type) { + const metas = this.chart.getSortedVisibleDatasetMetas(); + const axisID = this.axis + 'AxisID'; + const result = []; + let i, ilen; + for(i = 0, ilen = metas.length; i < ilen; ++i){ + const meta = metas[i]; + if (meta[axisID] === this.id && (!type || meta.type === type)) { + result.push(meta); + } + } + return result; + } + _resolveTickFontOptions(index) { + const opts = this.options.ticks.setContext(this.getContext(index)); + return toFont(opts.font); + } + _maxDigits() { + const fontSize = this._resolveTickFontOptions(0).lineHeight; + return (this.isHorizontal() ? this.width : this.height) / fontSize; + } } class TypedRegistry { - constructor(type, scope, override) { - this.type = type; - this.scope = scope; - this.override = override; - this.items = Object.create(null); - } - isForType(type) { - return Object.prototype.isPrototypeOf.call(this.type.prototype, type.prototype); - } - register(item) { - const proto = Object.getPrototypeOf(item); - let parentScope; - if (isIChartComponent(proto)) { - parentScope = this.register(proto); + constructor(type, scope, override){ + this.type = type; + this.scope = scope; + this.override = override; + this.items = Object.create(null); } - const items = this.items; - const id = item.id; - const scope = this.scope + '.' + id; - if (!id) { - throw new Error('class does not have id: ' + item); + isForType(type) { + return Object.prototype.isPrototypeOf.call(this.type.prototype, type.prototype); } - if (id in items) { - return scope; + register(item) { + const proto = Object.getPrototypeOf(item); + let parentScope; + if (isIChartComponent(proto)) { + parentScope = this.register(proto); + } + const items = this.items; + const id = item.id; + const scope = this.scope + '.' + id; + if (!id) { + throw new Error('class does not have id: ' + item); + } + if (id in items) { + return scope; + } + items[id] = item; + registerDefaults(item, scope, parentScope); + if (this.override) { + defaults.override(item.id, item.overrides); + } + return scope; } - items[id] = item; - registerDefaults(item, scope, parentScope); - if (this.override) { - defaults.override(item.id, item.overrides); + get(id) { + return this.items[id]; } - return scope; - } - get(id) { - return this.items[id]; - } - unregister(item) { - const items = this.items; - const id = item.id; - const scope = this.scope; - if (id in items) { - delete items[id]; + unregister(item) { + const items = this.items; + const id = item.id; + const scope = this.scope; + if (id in items) { + delete items[id]; + } + if (scope && id in defaults[scope]) { + delete defaults[scope][id]; + if (this.override) { + delete overrides[id]; + } + } } - if (scope && id in defaults[scope]) { - delete defaults[scope][id]; - if (this.override) { - delete overrides[id]; - } - } - } } function registerDefaults(item, scope, parentScope) { - const itemDefaults = merge(Object.create(null), [ - parentScope ? defaults.get(parentScope) : {}, - defaults.get(scope), - item.defaults - ]); - defaults.set(scope, itemDefaults); - if (item.defaultRoutes) { - routeDefaults(scope, item.defaultRoutes); - } - if (item.descriptors) { - defaults.describe(scope, item.descriptors); - } + const itemDefaults = merge(Object.create(null), [ + parentScope ? defaults.get(parentScope) : {}, + defaults.get(scope), + item.defaults + ]); + defaults.set(scope, itemDefaults); + if (item.defaultRoutes) { + routeDefaults(scope, item.defaultRoutes); + } + if (item.descriptors) { + defaults.describe(scope, item.descriptors); + } } function routeDefaults(scope, routes) { - Object.keys(routes).forEach(property => { - const propertyParts = property.split('.'); - const sourceName = propertyParts.pop(); - const sourceScope = [scope].concat(propertyParts).join('.'); - const parts = routes[property].split('.'); - const targetName = parts.pop(); - const targetScope = parts.join('.'); - defaults.route(sourceScope, sourceName, targetScope, targetName); - }); + Object.keys(routes).forEach((property)=>{ + const propertyParts = property.split('.'); + const sourceName = propertyParts.pop(); + const sourceScope = [ + scope + ].concat(propertyParts).join('.'); + const parts = routes[property].split('.'); + const targetName = parts.pop(); + const targetScope = parts.join('.'); + defaults.route(sourceScope, sourceName, targetScope, targetName); + }); } function isIChartComponent(proto) { - return 'id' in proto && 'defaults' in proto; + return 'id' in proto && 'defaults' in proto; } class Registry { - constructor() { - this.controllers = new TypedRegistry(DatasetController, 'datasets', true); - this.elements = new TypedRegistry(Element, 'elements'); - this.plugins = new TypedRegistry(Object, 'plugins'); - this.scales = new TypedRegistry(Scale, 'scales'); - this._typedRegistries = [this.controllers, this.scales, this.elements]; - } - add(...args) { - this._each('register', args); - } - remove(...args) { - this._each('unregister', args); - } - addControllers(...args) { - this._each('register', args, this.controllers); - } - addElements(...args) { - this._each('register', args, this.elements); - } - addPlugins(...args) { - this._each('register', args, this.plugins); - } - addScales(...args) { - this._each('register', args, this.scales); - } - getController(id) { - return this._get(id, this.controllers, 'controller'); - } - getElement(id) { - return this._get(id, this.elements, 'element'); - } - getPlugin(id) { - return this._get(id, this.plugins, 'plugin'); - } - getScale(id) { - return this._get(id, this.scales, 'scale'); - } - removeControllers(...args) { - this._each('unregister', args, this.controllers); - } - removeElements(...args) { - this._each('unregister', args, this.elements); - } - removePlugins(...args) { - this._each('unregister', args, this.plugins); - } - removeScales(...args) { - this._each('unregister', args, this.scales); - } - _each(method, args, typedRegistry) { - [...args].forEach(arg => { - const reg = typedRegistry || this._getRegistryForType(arg); - if (typedRegistry || reg.isForType(arg) || (reg === this.plugins && arg.id)) { - this._exec(method, reg, arg); - } else { - each(arg, item => { - const itemReg = typedRegistry || this._getRegistryForType(item); - this._exec(method, itemReg, item); + constructor(){ + this.controllers = new TypedRegistry(DatasetController, 'datasets', true); + this.elements = new TypedRegistry(Element, 'elements'); + this.plugins = new TypedRegistry(Object, 'plugins'); + this.scales = new TypedRegistry(Scale, 'scales'); + this._typedRegistries = [ + this.controllers, + this.scales, + this.elements + ]; + } + add(...args) { + this._each('register', args); + } + remove(...args) { + this._each('unregister', args); + } + addControllers(...args) { + this._each('register', args, this.controllers); + } + addElements(...args) { + this._each('register', args, this.elements); + } + addPlugins(...args) { + this._each('register', args, this.plugins); + } + addScales(...args) { + this._each('register', args, this.scales); + } + getController(id) { + return this._get(id, this.controllers, 'controller'); + } + getElement(id) { + return this._get(id, this.elements, 'element'); + } + getPlugin(id) { + return this._get(id, this.plugins, 'plugin'); + } + getScale(id) { + return this._get(id, this.scales, 'scale'); + } + removeControllers(...args) { + this._each('unregister', args, this.controllers); + } + removeElements(...args) { + this._each('unregister', args, this.elements); + } + removePlugins(...args) { + this._each('unregister', args, this.plugins); + } + removeScales(...args) { + this._each('unregister', args, this.scales); + } + _each(method, args, typedRegistry) { + [ + ...args + ].forEach((arg)=>{ + const reg = typedRegistry || this._getRegistryForType(arg); + if (typedRegistry || reg.isForType(arg) || reg === this.plugins && arg.id) { + this._exec(method, reg, arg); + } else { + each(arg, (item)=>{ + const itemReg = typedRegistry || this._getRegistryForType(item); + this._exec(method, itemReg, item); + }); + } }); - } - }); - } - _exec(method, registry, component) { - const camelMethod = _capitalize(method); - callback(component['before' + camelMethod], [], component); - registry[method](component); - callback(component['after' + camelMethod], [], component); - } - _getRegistryForType(type) { - for (let i = 0; i < this._typedRegistries.length; i++) { - const reg = this._typedRegistries[i]; - if (reg.isForType(type)) { - return reg; - } } - return this.plugins; - } - _get(id, typedRegistry, type) { - const item = typedRegistry.get(id); - if (item === undefined) { - throw new Error('"' + id + '" is not a registered ' + type + '.'); + _exec(method, registry, component) { + const camelMethod = _capitalize(method); + callback(component['before' + camelMethod], [], component); + registry[method](component); + callback(component['after' + camelMethod], [], component); + } + _getRegistryForType(type) { + for(let i = 0; i < this._typedRegistries.length; i++){ + const reg = this._typedRegistries[i]; + if (reg.isForType(type)) { + return reg; + } + } + return this.plugins; + } + _get(id, typedRegistry, type) { + const item = typedRegistry.get(id); + if (item === undefined) { + throw new Error('"' + id + '" is not a registered ' + type + '.'); + } + return item; } - return item; - } } -var registry = new Registry(); +var registry = /* #__PURE__ */ new Registry(); class PluginService { - constructor() { - this._init = []; - } - notify(chart, hook, args, filter) { - if (hook === 'beforeInit') { - this._init = this._createDescriptors(chart, true); - this._notify(this._init, chart, 'install'); + constructor(){ + this._init = []; } - const descriptors = filter ? this._descriptors(chart).filter(filter) : this._descriptors(chart); - const result = this._notify(descriptors, chart, hook, args); - if (hook === 'afterDestroy') { - this._notify(descriptors, chart, 'stop'); - this._notify(this._init, chart, 'uninstall'); + notify(chart, hook, args, filter) { + if (hook === 'beforeInit') { + this._init = this._createDescriptors(chart, true); + this._notify(this._init, chart, 'install'); + } + const descriptors = filter ? this._descriptors(chart).filter(filter) : this._descriptors(chart); + const result = this._notify(descriptors, chart, hook, args); + if (hook === 'afterDestroy') { + this._notify(descriptors, chart, 'stop'); + this._notify(this._init, chart, 'uninstall'); + } + return result; } - return result; - } - _notify(descriptors, chart, hook, args) { - args = args || {}; - for (const descriptor of descriptors) { - const plugin = descriptor.plugin; - const method = plugin[hook]; - const params = [chart, args, descriptor.options]; - if (callback(method, params, plugin) === false && args.cancelable) { - return false; - } + _notify(descriptors, chart, hook, args) { + args = args || {}; + for (const descriptor of descriptors){ + const plugin = descriptor.plugin; + const method = plugin[hook]; + const params = [ + chart, + args, + descriptor.options + ]; + if (callback(method, params, plugin) === false && args.cancelable) { + return false; + } + } + return true; } - return true; - } - invalidate() { - if (!isNullOrUndef(this._cache)) { - this._oldCache = this._cache; - this._cache = undefined; + invalidate() { + if (!isNullOrUndef(this._cache)) { + this._oldCache = this._cache; + this._cache = undefined; + } } - } - _descriptors(chart) { - if (this._cache) { - return this._cache; + _descriptors(chart) { + if (this._cache) { + return this._cache; + } + const descriptors = this._cache = this._createDescriptors(chart); + this._notifyStateChanges(chart); + return descriptors; + } + _createDescriptors(chart, all) { + const config = chart && chart.config; + const options = valueOrDefault(config.options && config.options.plugins, {}); + const plugins = allPlugins(config); + return options === false && !all ? [] : createDescriptors(chart, plugins, options, all); + } + _notifyStateChanges(chart) { + const previousDescriptors = this._oldCache || []; + const descriptors = this._cache; + const diff = (a, b)=>a.filter((x)=>!b.some((y)=>x.plugin.id === y.plugin.id)); + this._notify(diff(previousDescriptors, descriptors), chart, 'stop'); + this._notify(diff(descriptors, previousDescriptors), chart, 'start'); } - const descriptors = this._cache = this._createDescriptors(chart); - this._notifyStateChanges(chart); - return descriptors; - } - _createDescriptors(chart, all) { - const config = chart && chart.config; - const options = valueOrDefault(config.options && config.options.plugins, {}); - const plugins = allPlugins(config); - return options === false && !all ? [] : createDescriptors(chart, plugins, options, all); - } - _notifyStateChanges(chart) { - const previousDescriptors = this._oldCache || []; - const descriptors = this._cache; - const diff = (a, b) => a.filter(x => !b.some(y => x.plugin.id === y.plugin.id)); - this._notify(diff(previousDescriptors, descriptors), chart, 'stop'); - this._notify(diff(descriptors, previousDescriptors), chart, 'start'); - } } -function allPlugins(config) { - const plugins = []; - const keys = Object.keys(registry.plugins.items); - for (let i = 0; i < keys.length; i++) { - plugins.push(registry.getPlugin(keys[i])); - } - const local = config.plugins || []; - for (let i = 0; i < local.length; i++) { - const plugin = local[i]; - if (plugins.indexOf(plugin) === -1) { - plugins.push(plugin); + function allPlugins(config) { + const localIds = {}; + const plugins = []; + const keys = Object.keys(registry.plugins.items); + for(let i = 0; i < keys.length; i++){ + plugins.push(registry.getPlugin(keys[i])); } - } - return plugins; + const local = config.plugins || []; + for(let i1 = 0; i1 < local.length; i1++){ + const plugin = local[i1]; + if (plugins.indexOf(plugin) === -1) { + plugins.push(plugin); + localIds[plugin.id] = true; + } + } + return { + plugins, + localIds + }; } function getOpts(options, all) { - if (!all && options === false) { - return null; - } - if (options === true) { - return {}; - } - return options; -} -function createDescriptors(chart, plugins, options, all) { - const result = []; - const context = chart.getContext(); - for (let i = 0; i < plugins.length; i++) { - const plugin = plugins[i]; - const id = plugin.id; - const opts = getOpts(options[id], all); - if (opts === null) { - continue; + if (!all && options === false) { + return null; } - result.push({ - plugin, - options: pluginOpts(chart.config, plugin, opts, context) - }); - } - return result; + if (options === true) { + return {}; + } + return options; } -function pluginOpts(config, plugin, opts, context) { - const keys = config.pluginScopeKeys(plugin); - const scopes = config.getOptionScopes(opts, keys); - return config.createResolver(scopes, context, [''], {scriptable: false, indexable: false, allKeys: true}); +function createDescriptors(chart, { plugins , localIds }, options, all) { + const result = []; + const context = chart.getContext(); + for (const plugin of plugins){ + const id = plugin.id; + const opts = getOpts(options[id], all); + if (opts === null) { + continue; + } + result.push({ + plugin, + options: pluginOpts(chart.config, { + plugin, + local: localIds[id] + }, opts, context) + }); + } + return result; +} +function pluginOpts(config, { plugin , local }, opts, context) { + const keys = config.pluginScopeKeys(plugin); + const scopes = config.getOptionScopes(opts, keys); + if (local && plugin.defaults) { + scopes.push(plugin.defaults); + } + return config.createResolver(scopes, context, [ + '' + ], { + scriptable: false, + indexable: false, + allKeys: true + }); } function getIndexAxis(type, options) { - const datasetDefaults = defaults.datasets[type] || {}; - const datasetOptions = (options.datasets || {})[type] || {}; - return datasetOptions.indexAxis || options.indexAxis || datasetDefaults.indexAxis || 'x'; + const datasetDefaults = defaults.datasets[type] || {}; + const datasetOptions = (options.datasets || {})[type] || {}; + return datasetOptions.indexAxis || options.indexAxis || datasetDefaults.indexAxis || 'x'; } function getAxisFromDefaultScaleID(id, indexAxis) { - let axis = id; - if (id === '_index_') { - axis = indexAxis; - } else if (id === '_value_') { - axis = indexAxis === 'x' ? 'y' : 'x'; - } - return axis; + let axis = id; + if (id === '_index_') { + axis = indexAxis; + } else if (id === '_value_') { + axis = indexAxis === 'x' ? 'y' : 'x'; + } + return axis; } function getDefaultScaleIDFromAxis(axis, indexAxis) { - return axis === indexAxis ? '_index_' : '_value_'; + return axis === indexAxis ? '_index_' : '_value_'; } function axisFromPosition(position) { - if (position === 'top' || position === 'bottom') { - return 'x'; - } - if (position === 'left' || position === 'right') { - return 'y'; - } + if (position === 'top' || position === 'bottom') { + return 'x'; + } + if (position === 'left' || position === 'right') { + return 'y'; + } } function determineAxis(id, scaleOptions) { - if (id === 'x' || id === 'y') { - return id; - } - return scaleOptions.axis || axisFromPosition(scaleOptions.position) || id.charAt(0).toLowerCase(); + if (id === 'x' || id === 'y' || id === 'r') { + return id; + } + id = scaleOptions.axis || axisFromPosition(scaleOptions.position) || id.length > 1 && determineAxis(id[0].toLowerCase(), scaleOptions); + if (id) { + return id; + } + throw new Error(`Cannot determine type of '${name}' axis. Please provide 'axis' or 'position' option.`); } function mergeScaleConfig(config, options) { - const chartDefaults = overrides[config.type] || {scales: {}}; - const configScales = options.scales || {}; - const chartIndexAxis = getIndexAxis(config.type, options); - const firstIDs = Object.create(null); - const scales = Object.create(null); - Object.keys(configScales).forEach(id => { - const scaleConf = configScales[id]; - if (!isObject(scaleConf)) { - return console.error(`Invalid scale configuration for scale: ${id}`); - } - if (scaleConf._proxy) { - return console.warn(`Ignoring resolver passed as options for scale: ${id}`); - } - const axis = determineAxis(id, scaleConf); - const defaultId = getDefaultScaleIDFromAxis(axis, chartIndexAxis); - const defaultScaleOptions = chartDefaults.scales || {}; - firstIDs[axis] = firstIDs[axis] || id; - scales[id] = mergeIf(Object.create(null), [{axis}, scaleConf, defaultScaleOptions[axis], defaultScaleOptions[defaultId]]); - }); - config.data.datasets.forEach(dataset => { - const type = dataset.type || config.type; - const indexAxis = dataset.indexAxis || getIndexAxis(type, options); - const datasetDefaults = overrides[type] || {}; - const defaultScaleOptions = datasetDefaults.scales || {}; - Object.keys(defaultScaleOptions).forEach(defaultID => { - const axis = getAxisFromDefaultScaleID(defaultID, indexAxis); - const id = dataset[axis + 'AxisID'] || firstIDs[axis] || axis; - scales[id] = scales[id] || Object.create(null); - mergeIf(scales[id], [{axis}, configScales[id], defaultScaleOptions[defaultID]]); + const chartDefaults = overrides[config.type] || { + scales: {} + }; + const configScales = options.scales || {}; + const chartIndexAxis = getIndexAxis(config.type, options); + const scales = Object.create(null); + Object.keys(configScales).forEach((id)=>{ + const scaleConf = configScales[id]; + if (!isObject(scaleConf)) { + return console.error(`Invalid scale configuration for scale: ${id}`); + } + if (scaleConf._proxy) { + return console.warn(`Ignoring resolver passed as options for scale: ${id}`); + } + const axis = determineAxis(id, scaleConf); + const defaultId = getDefaultScaleIDFromAxis(axis, chartIndexAxis); + const defaultScaleOptions = chartDefaults.scales || {}; + scales[id] = mergeIf(Object.create(null), [ + { + axis + }, + scaleConf, + defaultScaleOptions[axis], + defaultScaleOptions[defaultId] + ]); }); - }); - Object.keys(scales).forEach(key => { - const scale = scales[key]; - mergeIf(scale, [defaults.scales[scale.type], defaults.scale]); - }); - return scales; + config.data.datasets.forEach((dataset)=>{ + const type = dataset.type || config.type; + const indexAxis = dataset.indexAxis || getIndexAxis(type, options); + const datasetDefaults = overrides[type] || {}; + const defaultScaleOptions = datasetDefaults.scales || {}; + Object.keys(defaultScaleOptions).forEach((defaultID)=>{ + const axis = getAxisFromDefaultScaleID(defaultID, indexAxis); + const id = dataset[axis + 'AxisID'] || axis; + scales[id] = scales[id] || Object.create(null); + mergeIf(scales[id], [ + { + axis + }, + configScales[id], + defaultScaleOptions[defaultID] + ]); + }); + }); + Object.keys(scales).forEach((key)=>{ + const scale = scales[key]; + mergeIf(scale, [ + defaults.scales[scale.type], + defaults.scale + ]); + }); + return scales; } function initOptions(config) { - const options = config.options || (config.options = {}); - options.plugins = valueOrDefault(options.plugins, {}); - options.scales = mergeScaleConfig(config, options); + const options = config.options || (config.options = {}); + options.plugins = valueOrDefault(options.plugins, {}); + options.scales = mergeScaleConfig(config, options); } function initData(data) { - data = data || {}; - data.datasets = data.datasets || []; - data.labels = data.labels || []; - return data; + data = data || {}; + data.datasets = data.datasets || []; + data.labels = data.labels || []; + return data; } function initConfig(config) { - config = config || {}; - config.data = initData(config.data); - initOptions(config); - return config; + config = config || {}; + config.data = initData(config.data); + initOptions(config); + return config; } const keyCache = new Map(); const keysCached = new Set(); function cachedKeys(cacheKey, generate) { - let keys = keyCache.get(cacheKey); - if (!keys) { - keys = generate(); - keyCache.set(cacheKey, keys); - keysCached.add(keys); - } - return keys; + let keys = keyCache.get(cacheKey); + if (!keys) { + keys = generate(); + keyCache.set(cacheKey, keys); + keysCached.add(keys); + } + return keys; } -const addIfFound = (set, obj, key) => { - const opts = resolveObjectKey(obj, key); - if (opts !== undefined) { - set.add(opts); - } +const addIfFound = (set, obj, key)=>{ + const opts = resolveObjectKey(obj, key); + if (opts !== undefined) { + set.add(opts); + } }; class Config { - constructor(config) { - this._config = initConfig(config); - this._scopeCache = new Map(); - this._resolverCache = new Map(); - } - get platform() { - return this._config.platform; - } - get type() { - return this._config.type; - } - set type(type) { - this._config.type = type; - } - get data() { - return this._config.data; - } - set data(data) { - this._config.data = initData(data); - } - get options() { - return this._config.options; - } - set options(options) { - this._config.options = options; - } - get plugins() { - return this._config.plugins; - } - update() { - const config = this._config; - this.clearCache(); - initOptions(config); - } - clearCache() { - this._scopeCache.clear(); - this._resolverCache.clear(); - } - datasetScopeKeys(datasetType) { - return cachedKeys(datasetType, - () => [[ - `datasets.${datasetType}`, + constructor(config){ + this._config = initConfig(config); + this._scopeCache = new Map(); + this._resolverCache = new Map(); + } + get platform() { + return this._config.platform; + } + get type() { + return this._config.type; + } + set type(type) { + this._config.type = type; + } + get data() { + return this._config.data; + } + set data(data) { + this._config.data = initData(data); + } + get options() { + return this._config.options; + } + set options(options) { + this._config.options = options; + } + get plugins() { + return this._config.plugins; + } + update() { + const config = this._config; + this.clearCache(); + initOptions(config); + } + clearCache() { + this._scopeCache.clear(); + this._resolverCache.clear(); + } + datasetScopeKeys(datasetType) { + return cachedKeys(datasetType, ()=>[ + [ + `datasets.${datasetType}`, + '' + ] + ]); + } + datasetAnimationScopeKeys(datasetType, transition) { + return cachedKeys(`${datasetType}.transition.${transition}`, ()=>[ + [ + `datasets.${datasetType}.transitions.${transition}`, + `transitions.${transition}` + ], + [ + `datasets.${datasetType}`, + '' + ] + ]); + } + datasetElementScopeKeys(datasetType, elementType) { + return cachedKeys(`${datasetType}-${elementType}`, ()=>[ + [ + `datasets.${datasetType}.elements.${elementType}`, + `datasets.${datasetType}`, + `elements.${elementType}`, + '' + ] + ]); + } + pluginScopeKeys(plugin) { + const id = plugin.id; + const type = this.type; + return cachedKeys(`${type}-plugin-${id}`, ()=>[ + [ + `plugins.${id}`, + ...plugin.additionalOptionScopes || [] + ] + ]); + } + _cachedScopes(mainScope, resetCache) { + const _scopeCache = this._scopeCache; + let cache = _scopeCache.get(mainScope); + if (!cache || resetCache) { + cache = new Map(); + _scopeCache.set(mainScope, cache); + } + return cache; + } + getOptionScopes(mainScope, keyLists, resetCache) { + const { options , type } = this; + const cache = this._cachedScopes(mainScope, resetCache); + const cached = cache.get(keyLists); + if (cached) { + return cached; + } + const scopes = new Set(); + keyLists.forEach((keys)=>{ + if (mainScope) { + scopes.add(mainScope); + keys.forEach((key)=>addIfFound(scopes, mainScope, key)); + } + keys.forEach((key)=>addIfFound(scopes, options, key)); + keys.forEach((key)=>addIfFound(scopes, overrides[type] || {}, key)); + keys.forEach((key)=>addIfFound(scopes, defaults, key)); + keys.forEach((key)=>addIfFound(scopes, descriptors, key)); + }); + const array = Array.from(scopes); + if (array.length === 0) { + array.push(Object.create(null)); + } + if (keysCached.has(keyLists)) { + cache.set(keyLists, array); + } + return array; + } + chartOptionScopes() { + const { options , type } = this; + return [ + options, + overrides[type] || {}, + defaults.datasets[type] || {}, + { + type + }, + defaults, + descriptors + ]; + } + resolveNamedOptions(scopes, names, context, prefixes = [ '' - ]]); - } - datasetAnimationScopeKeys(datasetType, transition) { - return cachedKeys(`${datasetType}.transition.${transition}`, - () => [ - [ - `datasets.${datasetType}.transitions.${transition}`, - `transitions.${transition}`, - ], - [ - `datasets.${datasetType}`, - '' - ] - ]); - } - datasetElementScopeKeys(datasetType, elementType) { - return cachedKeys(`${datasetType}-${elementType}`, - () => [[ - `datasets.${datasetType}.elements.${elementType}`, - `datasets.${datasetType}`, - `elements.${elementType}`, + ]) { + const result = { + $shared: true + }; + const { resolver , subPrefixes } = getResolver(this._resolverCache, scopes, prefixes); + let options = resolver; + if (needContext(resolver, names)) { + result.$shared = false; + context = isFunction(context) ? context() : context; + const subResolver = this.createResolver(scopes, context, subPrefixes); + options = _attachContext(resolver, context, subResolver); + } + for (const prop of names){ + result[prop] = options[prop]; + } + return result; + } + createResolver(scopes, context, prefixes = [ '' - ]]); - } - pluginScopeKeys(plugin) { - const id = plugin.id; - const type = this.type; - return cachedKeys(`${type}-plugin-${id}`, - () => [[ - `plugins.${id}`, - ...plugin.additionalOptionScopes || [], - ]]); - } - _cachedScopes(mainScope, resetCache) { - const _scopeCache = this._scopeCache; - let cache = _scopeCache.get(mainScope); - if (!cache || resetCache) { - cache = new Map(); - _scopeCache.set(mainScope, cache); + ], descriptorDefaults) { + const { resolver } = getResolver(this._resolverCache, scopes, prefixes); + return isObject(context) ? _attachContext(resolver, context, undefined, descriptorDefaults) : resolver; } - return cache; - } - getOptionScopes(mainScope, keyLists, resetCache) { - const {options, type} = this; - const cache = this._cachedScopes(mainScope, resetCache); - const cached = cache.get(keyLists); - if (cached) { - return cached; - } - const scopes = new Set(); - keyLists.forEach(keys => { - if (mainScope) { - scopes.add(mainScope); - keys.forEach(key => addIfFound(scopes, mainScope, key)); - } - keys.forEach(key => addIfFound(scopes, options, key)); - keys.forEach(key => addIfFound(scopes, overrides[type] || {}, key)); - keys.forEach(key => addIfFound(scopes, defaults, key)); - keys.forEach(key => addIfFound(scopes, descriptors, key)); - }); - const array = Array.from(scopes); - if (array.length === 0) { - array.push(Object.create(null)); - } - if (keysCached.has(keyLists)) { - cache.set(keyLists, array); - } - return array; - } - chartOptionScopes() { - const {options, type} = this; - return [ - options, - overrides[type] || {}, - defaults.datasets[type] || {}, - {type}, - defaults, - descriptors - ]; - } - resolveNamedOptions(scopes, names, context, prefixes = ['']) { - const result = {$shared: true}; - const {resolver, subPrefixes} = getResolver(this._resolverCache, scopes, prefixes); - let options = resolver; - if (needContext(resolver, names)) { - result.$shared = false; - context = isFunction(context) ? context() : context; - const subResolver = this.createResolver(scopes, context, subPrefixes); - options = _attachContext(resolver, context, subResolver); - } - for (const prop of names) { - result[prop] = options[prop]; - } - return result; - } - createResolver(scopes, context, prefixes = [''], descriptorDefaults) { - const {resolver} = getResolver(this._resolverCache, scopes, prefixes); - return isObject(context) - ? _attachContext(resolver, context, undefined, descriptorDefaults) - : resolver; - } } function getResolver(resolverCache, scopes, prefixes) { - let cache = resolverCache.get(scopes); - if (!cache) { - cache = new Map(); - resolverCache.set(scopes, cache); - } - const cacheKey = prefixes.join(); - let cached = cache.get(cacheKey); - if (!cached) { - const resolver = _createResolver(scopes, prefixes); - cached = { - resolver, - subPrefixes: prefixes.filter(p => !p.toLowerCase().includes('hover')) - }; - cache.set(cacheKey, cached); - } - return cached; -} -const hasFunction = value => isObject(value) - && Object.getOwnPropertyNames(value).reduce((acc, key) => acc || isFunction(value[key]), false); -function needContext(proxy, names) { - const {isScriptable, isIndexable} = _descriptors(proxy); - for (const prop of names) { - const scriptable = isScriptable(prop); - const indexable = isIndexable(prop); - const value = (indexable || scriptable) && proxy[prop]; - if ((scriptable && (isFunction(value) || hasFunction(value))) - || (indexable && isArray(value))) { - return true; + let cache = resolverCache.get(scopes); + if (!cache) { + cache = new Map(); + resolverCache.set(scopes, cache); } - } - return false; + const cacheKey = prefixes.join(); + let cached = cache.get(cacheKey); + if (!cached) { + const resolver = _createResolver(scopes, prefixes); + cached = { + resolver, + subPrefixes: prefixes.filter((p)=>!p.toLowerCase().includes('hover')) + }; + cache.set(cacheKey, cached); + } + return cached; +} +const hasFunction = (value)=>isObject(value) && Object.getOwnPropertyNames(value).reduce((acc, key)=>acc || isFunction(value[key]), false); +function needContext(proxy, names) { + const { isScriptable , isIndexable } = _descriptors(proxy); + for (const prop of names){ + const scriptable = isScriptable(prop); + const indexable = isIndexable(prop); + const value = (indexable || scriptable) && proxy[prop]; + if (scriptable && (isFunction(value) || hasFunction(value)) || indexable && isArray(value)) { + return true; + } + } + return false; } -var version = "3.8.0"; +var version = "4.2.1"; -const KNOWN_POSITIONS = ['top', 'bottom', 'left', 'right', 'chartArea']; +const KNOWN_POSITIONS = [ + 'top', + 'bottom', + 'left', + 'right', + 'chartArea' +]; function positionIsHorizontal(position, axis) { - return position === 'top' || position === 'bottom' || (KNOWN_POSITIONS.indexOf(position) === -1 && axis === 'x'); + return position === 'top' || position === 'bottom' || KNOWN_POSITIONS.indexOf(position) === -1 && axis === 'x'; } function compare2Level(l1, l2) { - return function(a, b) { - return a[l1] === b[l1] - ? a[l2] - b[l2] - : a[l1] - b[l1]; - }; + return function(a, b) { + return a[l1] === b[l1] ? a[l2] - b[l2] : a[l1] - b[l1]; + }; } function onAnimationsComplete(context) { - const chart = context.chart; - const animationOptions = chart.options.animation; - chart.notifyPlugins('afterRender'); - callback(animationOptions && animationOptions.onComplete, [context], chart); + const chart = context.chart; + const animationOptions = chart.options.animation; + chart.notifyPlugins('afterRender'); + callback(animationOptions && animationOptions.onComplete, [ + context + ], chart); } function onAnimationProgress(context) { - const chart = context.chart; - const animationOptions = chart.options.animation; - callback(animationOptions && animationOptions.onProgress, [context], chart); + const chart = context.chart; + const animationOptions = chart.options.animation; + callback(animationOptions && animationOptions.onProgress, [ + context + ], chart); } -function getCanvas(item) { - if (_isDomSupported() && typeof item === 'string') { - item = document.getElementById(item); - } else if (item && item.length) { - item = item[0]; - } - if (item && item.canvas) { - item = item.canvas; - } - return item; + function getCanvas(item) { + if (_isDomSupported() && typeof item === 'string') { + item = document.getElementById(item); + } else if (item && item.length) { + item = item[0]; + } + if (item && item.canvas) { + item = item.canvas; + } + return item; } const instances = {}; -const getChart = (key) => { - const canvas = getCanvas(key); - return Object.values(instances).filter((c) => c.canvas === canvas).pop(); +const getChart = (key)=>{ + const canvas = getCanvas(key); + return Object.values(instances).filter((c)=>c.canvas === canvas).pop(); }; function moveNumericKeys(obj, start, move) { - const keys = Object.keys(obj); - for (const key of keys) { - const intKey = +key; - if (intKey >= start) { - const value = obj[key]; - delete obj[key]; - if (move > 0 || intKey > start) { - obj[intKey + move] = value; - } + const keys = Object.keys(obj); + for (const key of keys){ + const intKey = +key; + if (intKey >= start) { + const value = obj[key]; + delete obj[key]; + if (move > 0 || intKey > start) { + obj[intKey + move] = value; + } + } } - } } -function determineLastEvent(e, lastEvent, inChartArea, isClick) { - if (!inChartArea || e.type === 'mouseout') { - return null; - } - if (isClick) { - return lastEvent; - } - return e; + function determineLastEvent(e, lastEvent, inChartArea, isClick) { + if (!inChartArea || e.type === 'mouseout') { + return null; + } + if (isClick) { + return lastEvent; + } + return e; +} +function getDatasetArea(meta) { + const { xScale , yScale } = meta; + if (xScale && yScale) { + return { + left: xScale.left, + right: xScale.right, + top: yScale.top, + bottom: yScale.bottom + }; + } } class Chart { - constructor(item, userConfig) { - const config = this.config = new Config(userConfig); - const initialCanvas = getCanvas(item); - const existingChart = getChart(initialCanvas); - if (existingChart) { - throw new Error( - 'Canvas is already in use. Chart with ID \'' + existingChart.id + '\'' + - ' must be destroyed before the canvas can be reused.' - ); + static defaults = defaults; + static instances = instances; + static overrides = overrides; + static registry = registry; + static version = version; + static getChart = getChart; + static register(...items) { + registry.add(...items); + invalidatePlugins(); } - const options = config.createResolver(config.chartOptionScopes(), this.getContext()); - this.platform = new (config.platform || _detectPlatform(initialCanvas))(); - this.platform.updateConfig(config); - const context = this.platform.acquireContext(initialCanvas, options.aspectRatio); - const canvas = context && context.canvas; - const height = canvas && canvas.height; - const width = canvas && canvas.width; - this.id = uid(); - this.ctx = context; - this.canvas = canvas; - this.width = width; - this.height = height; - this._options = options; - this._aspectRatio = this.aspectRatio; - this._layers = []; - this._metasets = []; - this._stacks = undefined; - this.boxes = []; - this.currentDevicePixelRatio = undefined; - this.chartArea = undefined; - this._active = []; - this._lastEvent = undefined; - this._listeners = {}; - this._responsiveListeners = undefined; - this._sortedMetasets = []; - this.scales = {}; - this._plugins = new PluginService(); - this.$proxies = {}; - this._hiddenIndices = {}; - this.attached = false; - this._animationsDisabled = undefined; - this.$context = undefined; - this._doResize = debounce(mode => this.update(mode), options.resizeDelay || 0); - this._dataChanges = []; - instances[this.id] = this; - if (!context || !canvas) { - console.error("Failed to create chart: can't acquire context from the given item"); - return; + static unregister(...items) { + registry.remove(...items); + invalidatePlugins(); } - animator.listen(this, 'complete', onAnimationsComplete); - animator.listen(this, 'progress', onAnimationProgress); - this._initialize(); - if (this.attached) { - this.update(); + constructor(item, userConfig){ + const config = this.config = new Config(userConfig); + const initialCanvas = getCanvas(item); + const existingChart = getChart(initialCanvas); + if (existingChart) { + throw new Error('Canvas is already in use. Chart with ID \'' + existingChart.id + '\'' + ' must be destroyed before the canvas with ID \'' + existingChart.canvas.id + '\' can be reused.'); + } + const options = config.createResolver(config.chartOptionScopes(), this.getContext()); + this.platform = new (config.platform || _detectPlatform(initialCanvas))(); + this.platform.updateConfig(config); + const context = this.platform.acquireContext(initialCanvas, options.aspectRatio); + const canvas = context && context.canvas; + const height = canvas && canvas.height; + const width = canvas && canvas.width; + this.id = uid(); + this.ctx = context; + this.canvas = canvas; + this.width = width; + this.height = height; + this._options = options; + this._aspectRatio = this.aspectRatio; + this._layers = []; + this._metasets = []; + this._stacks = undefined; + this.boxes = []; + this.currentDevicePixelRatio = undefined; + this.chartArea = undefined; + this._active = []; + this._lastEvent = undefined; + this._listeners = {}; + this._responsiveListeners = undefined; + this._sortedMetasets = []; + this.scales = {}; + this._plugins = new PluginService(); + this.$proxies = {}; + this._hiddenIndices = {}; + this.attached = false; + this._animationsDisabled = undefined; + this.$context = undefined; + this._doResize = debounce((mode)=>this.update(mode), options.resizeDelay || 0); + this._dataChanges = []; + instances[this.id] = this; + if (!context || !canvas) { + console.error("Failed to create chart: can't acquire context from the given item"); + return; + } + animator.listen(this, 'complete', onAnimationsComplete); + animator.listen(this, 'progress', onAnimationProgress); + this._initialize(); + if (this.attached) { + this.update(); + } } - } - get aspectRatio() { - const {options: {aspectRatio, maintainAspectRatio}, width, height, _aspectRatio} = this; - if (!isNullOrUndef(aspectRatio)) { - return aspectRatio; + get aspectRatio() { + const { options: { aspectRatio , maintainAspectRatio } , width , height , _aspectRatio } = this; + if (!isNullOrUndef(aspectRatio)) { + return aspectRatio; + } + if (maintainAspectRatio && _aspectRatio) { + return _aspectRatio; + } + return height ? width / height : null; } - if (maintainAspectRatio && _aspectRatio) { - return _aspectRatio; + get data() { + return this.config.data; } - return height ? width / height : null; - } - get data() { - return this.config.data; - } - set data(data) { - this.config.data = data; - } - get options() { - return this._options; - } - set options(options) { - this.config.options = options; - } - _initialize() { - this.notifyPlugins('beforeInit'); - if (this.options.responsive) { - this.resize(); - } else { - retinaScale(this, this.options.devicePixelRatio); + set data(data) { + this.config.data = data; } - this.bindEvents(); - this.notifyPlugins('afterInit'); - return this; - } - clear() { - clearCanvas(this.canvas, this.ctx); - return this; - } - stop() { - animator.stop(this); - return this; - } - resize(width, height) { - if (!animator.running(this)) { - this._resize(width, height); - } else { - this._resizeBeforeDraw = {width, height}; + get options() { + return this._options; } - } - _resize(width, height) { - const options = this.options; - const canvas = this.canvas; - const aspectRatio = options.maintainAspectRatio && this.aspectRatio; - const newSize = this.platform.getMaximumSize(canvas, width, height, aspectRatio); - const newRatio = options.devicePixelRatio || this.platform.getDevicePixelRatio(); - const mode = this.width ? 'resize' : 'attach'; - this.width = newSize.width; - this.height = newSize.height; - this._aspectRatio = this.aspectRatio; - if (!retinaScale(this, newRatio, true)) { - return; + set options(options) { + this.config.options = options; } - this.notifyPlugins('resize', {size: newSize}); - callback(options.onResize, [this, newSize], this); - if (this.attached) { - if (this._doResize(mode)) { + get registry() { + return registry; + } + _initialize() { + this.notifyPlugins('beforeInit'); + if (this.options.responsive) { + this.resize(); + } else { + retinaScale(this, this.options.devicePixelRatio); + } + this.bindEvents(); + this.notifyPlugins('afterInit'); + return this; + } + clear() { + clearCanvas(this.canvas, this.ctx); + return this; + } + stop() { + animator.stop(this); + return this; + } + resize(width, height) { + if (!animator.running(this)) { + this._resize(width, height); + } else { + this._resizeBeforeDraw = { + width, + height + }; + } + } + _resize(width, height) { + const options = this.options; + const canvas = this.canvas; + const aspectRatio = options.maintainAspectRatio && this.aspectRatio; + const newSize = this.platform.getMaximumSize(canvas, width, height, aspectRatio); + const newRatio = options.devicePixelRatio || this.platform.getDevicePixelRatio(); + const mode = this.width ? 'resize' : 'attach'; + this.width = newSize.width; + this.height = newSize.height; + this._aspectRatio = this.aspectRatio; + if (!retinaScale(this, newRatio, true)) { + return; + } + this.notifyPlugins('resize', { + size: newSize + }); + callback(options.onResize, [ + this, + newSize + ], this); + if (this.attached) { + if (this._doResize(mode)) { + this.render(); + } + } + } + ensureScalesHaveIDs() { + const options = this.options; + const scalesOptions = options.scales || {}; + each(scalesOptions, (axisOptions, axisID)=>{ + axisOptions.id = axisID; + }); + } + buildOrUpdateScales() { + const options = this.options; + const scaleOpts = options.scales; + const scales = this.scales; + const updated = Object.keys(scales).reduce((obj, id)=>{ + obj[id] = false; + return obj; + }, {}); + let items = []; + if (scaleOpts) { + items = items.concat(Object.keys(scaleOpts).map((id)=>{ + const scaleOptions = scaleOpts[id]; + const axis = determineAxis(id, scaleOptions); + const isRadial = axis === 'r'; + const isHorizontal = axis === 'x'; + return { + options: scaleOptions, + dposition: isRadial ? 'chartArea' : isHorizontal ? 'bottom' : 'left', + dtype: isRadial ? 'radialLinear' : isHorizontal ? 'category' : 'linear' + }; + })); + } + each(items, (item)=>{ + const scaleOptions = item.options; + const id = scaleOptions.id; + const axis = determineAxis(id, scaleOptions); + const scaleType = valueOrDefault(scaleOptions.type, item.dtype); + if (scaleOptions.position === undefined || positionIsHorizontal(scaleOptions.position, axis) !== positionIsHorizontal(item.dposition)) { + scaleOptions.position = item.dposition; + } + updated[id] = true; + let scale = null; + if (id in scales && scales[id].type === scaleType) { + scale = scales[id]; + } else { + const scaleClass = registry.getScale(scaleType); + scale = new scaleClass({ + id, + type: scaleType, + ctx: this.ctx, + chart: this + }); + scales[scale.id] = scale; + } + scale.init(scaleOptions, options); + }); + each(updated, (hasUpdated, id)=>{ + if (!hasUpdated) { + delete scales[id]; + } + }); + each(scales, (scale)=>{ + layouts.configure(this, scale, scale.options); + layouts.addBox(this, scale); + }); + } + _updateMetasets() { + const metasets = this._metasets; + const numData = this.data.datasets.length; + const numMeta = metasets.length; + metasets.sort((a, b)=>a.index - b.index); + if (numMeta > numData) { + for(let i = numData; i < numMeta; ++i){ + this._destroyDatasetMeta(i); + } + metasets.splice(numData, numMeta - numData); + } + this._sortedMetasets = metasets.slice(0).sort(compare2Level('order', 'index')); + } + _removeUnreferencedMetasets() { + const { _metasets: metasets , data: { datasets } } = this; + if (metasets.length > datasets.length) { + delete this._stacks; + } + metasets.forEach((meta, index)=>{ + if (datasets.filter((x)=>x === meta._dataset).length === 0) { + this._destroyDatasetMeta(index); + } + }); + } + buildOrUpdateControllers() { + const newControllers = []; + const datasets = this.data.datasets; + let i, ilen; + this._removeUnreferencedMetasets(); + for(i = 0, ilen = datasets.length; i < ilen; i++){ + const dataset = datasets[i]; + let meta = this.getDatasetMeta(i); + const type = dataset.type || this.config.type; + if (meta.type && meta.type !== type) { + this._destroyDatasetMeta(i); + meta = this.getDatasetMeta(i); + } + meta.type = type; + meta.indexAxis = dataset.indexAxis || getIndexAxis(type, this.options); + meta.order = dataset.order || 0; + meta.index = i; + meta.label = '' + dataset.label; + meta.visible = this.isDatasetVisible(i); + if (meta.controller) { + meta.controller.updateIndex(i); + meta.controller.linkScales(); + } else { + const ControllerClass = registry.getController(type); + const { datasetElementType , dataElementType } = defaults.datasets[type]; + Object.assign(ControllerClass, { + dataElementType: registry.getElement(dataElementType), + datasetElementType: datasetElementType && registry.getElement(datasetElementType) + }); + meta.controller = new ControllerClass(this, i); + newControllers.push(meta.controller); + } + } + this._updateMetasets(); + return newControllers; + } + _resetElements() { + each(this.data.datasets, (dataset, datasetIndex)=>{ + this.getDatasetMeta(datasetIndex).controller.reset(); + }, this); + } + reset() { + this._resetElements(); + this.notifyPlugins('reset'); + } + update(mode) { + const config = this.config; + config.update(); + const options = this._options = config.createResolver(config.chartOptionScopes(), this.getContext()); + const animsDisabled = this._animationsDisabled = !options.animation; + this._updateScales(); + this._checkEventBindings(); + this._updateHiddenIndices(); + this._plugins.invalidate(); + if (this.notifyPlugins('beforeUpdate', { + mode, + cancelable: true + }) === false) { + return; + } + const newControllers = this.buildOrUpdateControllers(); + this.notifyPlugins('beforeElementsUpdate'); + let minPadding = 0; + for(let i = 0, ilen = this.data.datasets.length; i < ilen; i++){ + const { controller } = this.getDatasetMeta(i); + const reset = !animsDisabled && newControllers.indexOf(controller) === -1; + controller.buildOrUpdateElements(reset); + minPadding = Math.max(+controller.getMaxOverflow(), minPadding); + } + minPadding = this._minPadding = options.layout.autoPadding ? minPadding : 0; + this._updateLayout(minPadding); + if (!animsDisabled) { + each(newControllers, (controller)=>{ + controller.reset(); + }); + } + this._updateDatasets(mode); + this.notifyPlugins('afterUpdate', { + mode + }); + this._layers.sort(compare2Level('z', '_idx')); + const { _active , _lastEvent } = this; + if (_lastEvent) { + this._eventHandler(_lastEvent, true); + } else if (_active.length) { + this._updateHoverStyles(_active, _active, true); + } this.render(); - } } - } - ensureScalesHaveIDs() { - const options = this.options; - const scalesOptions = options.scales || {}; - each(scalesOptions, (axisOptions, axisID) => { - axisOptions.id = axisID; - }); - } - buildOrUpdateScales() { - const options = this.options; - const scaleOpts = options.scales; - const scales = this.scales; - const updated = Object.keys(scales).reduce((obj, id) => { - obj[id] = false; - return obj; - }, {}); - let items = []; - if (scaleOpts) { - items = items.concat( - Object.keys(scaleOpts).map((id) => { - const scaleOptions = scaleOpts[id]; - const axis = determineAxis(id, scaleOptions); - const isRadial = axis === 'r'; - const isHorizontal = axis === 'x'; - return { - options: scaleOptions, - dposition: isRadial ? 'chartArea' : isHorizontal ? 'bottom' : 'left', - dtype: isRadial ? 'radialLinear' : isHorizontal ? 'category' : 'linear' - }; - }) - ); - } - each(items, (item) => { - const scaleOptions = item.options; - const id = scaleOptions.id; - const axis = determineAxis(id, scaleOptions); - const scaleType = valueOrDefault(scaleOptions.type, item.dtype); - if (scaleOptions.position === undefined || positionIsHorizontal(scaleOptions.position, axis) !== positionIsHorizontal(item.dposition)) { - scaleOptions.position = item.dposition; - } - updated[id] = true; - let scale = null; - if (id in scales && scales[id].type === scaleType) { - scale = scales[id]; - } else { - const scaleClass = registry.getScale(scaleType); - scale = new scaleClass({ - id, - type: scaleType, - ctx: this.ctx, - chart: this + _updateScales() { + each(this.scales, (scale)=>{ + layouts.removeBox(this, scale); }); - scales[scale.id] = scale; - } - scale.init(scaleOptions, options); - }); - each(updated, (hasUpdated, id) => { - if (!hasUpdated) { - delete scales[id]; - } - }); - each(scales, (scale) => { - layouts.configure(this, scale, scale.options); - layouts.addBox(this, scale); - }); - } - _updateMetasets() { - const metasets = this._metasets; - const numData = this.data.datasets.length; - const numMeta = metasets.length; - metasets.sort((a, b) => a.index - b.index); - if (numMeta > numData) { - for (let i = numData; i < numMeta; ++i) { - this._destroyDatasetMeta(i); - } - metasets.splice(numData, numMeta - numData); + this.ensureScalesHaveIDs(); + this.buildOrUpdateScales(); } - this._sortedMetasets = metasets.slice(0).sort(compare2Level('order', 'index')); - } - _removeUnreferencedMetasets() { - const {_metasets: metasets, data: {datasets}} = this; - if (metasets.length > datasets.length) { - delete this._stacks; + _checkEventBindings() { + const options = this.options; + const existingEvents = new Set(Object.keys(this._listeners)); + const newEvents = new Set(options.events); + if (!setsEqual(existingEvents, newEvents) || !!this._responsiveListeners !== options.responsive) { + this.unbindEvents(); + this.bindEvents(); + } } - metasets.forEach((meta, index) => { - if (datasets.filter(x => x === meta._dataset).length === 0) { - this._destroyDatasetMeta(index); - } - }); - } - buildOrUpdateControllers() { - const newControllers = []; - const datasets = this.data.datasets; - let i, ilen; - this._removeUnreferencedMetasets(); - for (i = 0, ilen = datasets.length; i < ilen; i++) { - const dataset = datasets[i]; - let meta = this.getDatasetMeta(i); - const type = dataset.type || this.config.type; - if (meta.type && meta.type !== type) { - this._destroyDatasetMeta(i); - meta = this.getDatasetMeta(i); - } - meta.type = type; - meta.indexAxis = dataset.indexAxis || getIndexAxis(type, this.options); - meta.order = dataset.order || 0; - meta.index = i; - meta.label = '' + dataset.label; - meta.visible = this.isDatasetVisible(i); - if (meta.controller) { - meta.controller.updateIndex(i); - meta.controller.linkScales(); - } else { - const ControllerClass = registry.getController(type); - const {datasetElementType, dataElementType} = defaults.datasets[type]; - Object.assign(ControllerClass.prototype, { - dataElementType: registry.getElement(dataElementType), - datasetElementType: datasetElementType && registry.getElement(datasetElementType) + _updateHiddenIndices() { + const { _hiddenIndices } = this; + const changes = this._getUniformDataChanges() || []; + for (const { method , start , count } of changes){ + const move = method === '_removeElements' ? -count : count; + moveNumericKeys(_hiddenIndices, start, move); + } + } + _getUniformDataChanges() { + const _dataChanges = this._dataChanges; + if (!_dataChanges || !_dataChanges.length) { + return; + } + this._dataChanges = []; + const datasetCount = this.data.datasets.length; + const makeSet = (idx)=>new Set(_dataChanges.filter((c)=>c[0] === idx).map((c, i)=>i + ',' + c.splice(1).join(','))); + const changeSet = makeSet(0); + for(let i = 1; i < datasetCount; i++){ + if (!setsEqual(changeSet, makeSet(i))) { + return; + } + } + return Array.from(changeSet).map((c)=>c.split(',')).map((a)=>({ + method: a[1], + start: +a[2], + count: +a[3] + })); + } + _updateLayout(minPadding) { + if (this.notifyPlugins('beforeLayout', { + cancelable: true + }) === false) { + return; + } + layouts.update(this, this.width, this.height, minPadding); + const area = this.chartArea; + const noArea = area.width <= 0 || area.height <= 0; + this._layers = []; + each(this.boxes, (box)=>{ + if (noArea && box.position === 'chartArea') { + return; + } + if (box.configure) { + box.configure(); + } + this._layers.push(...box._layers()); + }, this); + this._layers.forEach((item, index)=>{ + item._idx = index; }); - meta.controller = new ControllerClass(this, i); - newControllers.push(meta.controller); - } + this.notifyPlugins('afterLayout'); } - this._updateMetasets(); - return newControllers; - } - _resetElements() { - each(this.data.datasets, (dataset, datasetIndex) => { - this.getDatasetMeta(datasetIndex).controller.reset(); - }, this); - } - reset() { - this._resetElements(); - this.notifyPlugins('reset'); - } - update(mode) { - const config = this.config; - config.update(); - const options = this._options = config.createResolver(config.chartOptionScopes(), this.getContext()); - const animsDisabled = this._animationsDisabled = !options.animation; - this._updateScales(); - this._checkEventBindings(); - this._updateHiddenIndices(); - this._plugins.invalidate(); - if (this.notifyPlugins('beforeUpdate', {mode, cancelable: true}) === false) { - return; + _updateDatasets(mode) { + if (this.notifyPlugins('beforeDatasetsUpdate', { + mode, + cancelable: true + }) === false) { + return; + } + for(let i = 0, ilen = this.data.datasets.length; i < ilen; ++i){ + this.getDatasetMeta(i).controller.configure(); + } + for(let i1 = 0, ilen1 = this.data.datasets.length; i1 < ilen1; ++i1){ + this._updateDataset(i1, isFunction(mode) ? mode({ + datasetIndex: i1 + }) : mode); + } + this.notifyPlugins('afterDatasetsUpdate', { + mode + }); } - const newControllers = this.buildOrUpdateControllers(); - this.notifyPlugins('beforeElementsUpdate'); - let minPadding = 0; - for (let i = 0, ilen = this.data.datasets.length; i < ilen; i++) { - const {controller} = this.getDatasetMeta(i); - const reset = !animsDisabled && newControllers.indexOf(controller) === -1; - controller.buildOrUpdateElements(reset); - minPadding = Math.max(+controller.getMaxOverflow(), minPadding); + _updateDataset(index, mode) { + const meta = this.getDatasetMeta(index); + const args = { + meta, + index, + mode, + cancelable: true + }; + if (this.notifyPlugins('beforeDatasetUpdate', args) === false) { + return; + } + meta.controller._update(mode); + args.cancelable = false; + this.notifyPlugins('afterDatasetUpdate', args); } - minPadding = this._minPadding = options.layout.autoPadding ? minPadding : 0; - this._updateLayout(minPadding); - if (!animsDisabled) { - each(newControllers, (controller) => { - controller.reset(); - }); + render() { + if (this.notifyPlugins('beforeRender', { + cancelable: true + }) === false) { + return; + } + if (animator.has(this)) { + if (this.attached && !animator.running(this)) { + animator.start(this); + } + } else { + this.draw(); + onAnimationsComplete({ + chart: this + }); + } } - this._updateDatasets(mode); - this.notifyPlugins('afterUpdate', {mode}); - this._layers.sort(compare2Level('z', '_idx')); - const {_active, _lastEvent} = this; - if (_lastEvent) { - this._eventHandler(_lastEvent, true); - } else if (_active.length) { - this._updateHoverStyles(_active, _active, true); + draw() { + let i; + if (this._resizeBeforeDraw) { + const { width , height } = this._resizeBeforeDraw; + this._resize(width, height); + this._resizeBeforeDraw = null; + } + this.clear(); + if (this.width <= 0 || this.height <= 0) { + return; + } + if (this.notifyPlugins('beforeDraw', { + cancelable: true + }) === false) { + return; + } + const layers = this._layers; + for(i = 0; i < layers.length && layers[i].z <= 0; ++i){ + layers[i].draw(this.chartArea); + } + this._drawDatasets(); + for(; i < layers.length; ++i){ + layers[i].draw(this.chartArea); + } + this.notifyPlugins('afterDraw'); } - this.render(); - } - _updateScales() { - each(this.scales, (scale) => { - layouts.removeBox(this, scale); - }); - this.ensureScalesHaveIDs(); - this.buildOrUpdateScales(); - } - _checkEventBindings() { - const options = this.options; - const existingEvents = new Set(Object.keys(this._listeners)); - const newEvents = new Set(options.events); - if (!setsEqual(existingEvents, newEvents) || !!this._responsiveListeners !== options.responsive) { - this.unbindEvents(); - this.bindEvents(); + _getSortedDatasetMetas(filterVisible) { + const metasets = this._sortedMetasets; + const result = []; + let i, ilen; + for(i = 0, ilen = metasets.length; i < ilen; ++i){ + const meta = metasets[i]; + if (!filterVisible || meta.visible) { + result.push(meta); + } + } + return result; } - } - _updateHiddenIndices() { - const {_hiddenIndices} = this; - const changes = this._getUniformDataChanges() || []; - for (const {method, start, count} of changes) { - const move = method === '_removeElements' ? -count : count; - moveNumericKeys(_hiddenIndices, start, move); + getSortedVisibleDatasetMetas() { + return this._getSortedDatasetMetas(true); } - } - _getUniformDataChanges() { - const _dataChanges = this._dataChanges; - if (!_dataChanges || !_dataChanges.length) { - return; + _drawDatasets() { + if (this.notifyPlugins('beforeDatasetsDraw', { + cancelable: true + }) === false) { + return; + } + const metasets = this.getSortedVisibleDatasetMetas(); + for(let i = metasets.length - 1; i >= 0; --i){ + this._drawDataset(metasets[i]); + } + this.notifyPlugins('afterDatasetsDraw'); } - this._dataChanges = []; - const datasetCount = this.data.datasets.length; - const makeSet = (idx) => new Set( - _dataChanges - .filter(c => c[0] === idx) - .map((c, i) => i + ',' + c.splice(1).join(',')) - ); - const changeSet = makeSet(0); - for (let i = 1; i < datasetCount; i++) { - if (!setsEqual(changeSet, makeSet(i))) { - return; - } + _drawDataset(meta) { + const ctx = this.ctx; + const clip = meta._clip; + const useClip = !clip.disabled; + const area = getDatasetArea(meta) || this.chartArea; + const args = { + meta, + index: meta.index, + cancelable: true + }; + if (this.notifyPlugins('beforeDatasetDraw', args) === false) { + return; + } + if (useClip) { + clipArea(ctx, { + left: clip.left === false ? 0 : area.left - clip.left, + right: clip.right === false ? this.width : area.right + clip.right, + top: clip.top === false ? 0 : area.top - clip.top, + bottom: clip.bottom === false ? this.height : area.bottom + clip.bottom + }); + } + meta.controller.draw(); + if (useClip) { + unclipArea(ctx); + } + args.cancelable = false; + this.notifyPlugins('afterDatasetDraw', args); } - return Array.from(changeSet) - .map(c => c.split(',')) - .map(a => ({method: a[1], start: +a[2], count: +a[3]})); - } - _updateLayout(minPadding) { - if (this.notifyPlugins('beforeLayout', {cancelable: true}) === false) { - return; + isPointInArea(point) { + return _isPointInArea(point, this.chartArea, this._minPadding); } - layouts.update(this, this.width, this.height, minPadding); - const area = this.chartArea; - const noArea = area.width <= 0 || area.height <= 0; - this._layers = []; - each(this.boxes, (box) => { - if (noArea && box.position === 'chartArea') { - return; - } - if (box.configure) { - box.configure(); - } - this._layers.push(...box._layers()); - }, this); - this._layers.forEach((item, index) => { - item._idx = index; - }); - this.notifyPlugins('afterLayout'); - } - _updateDatasets(mode) { - if (this.notifyPlugins('beforeDatasetsUpdate', {mode, cancelable: true}) === false) { - return; + getElementsAtEventForMode(e, mode, options, useFinalPosition) { + const method = Interaction.modes[mode]; + if (typeof method === 'function') { + return method(this, e, options, useFinalPosition); + } + return []; } - for (let i = 0, ilen = this.data.datasets.length; i < ilen; ++i) { - this.getDatasetMeta(i).controller.configure(); + getDatasetMeta(datasetIndex) { + const dataset = this.data.datasets[datasetIndex]; + const metasets = this._metasets; + let meta = metasets.filter((x)=>x && x._dataset === dataset).pop(); + if (!meta) { + meta = { + type: null, + data: [], + dataset: null, + controller: null, + hidden: null, + xAxisID: null, + yAxisID: null, + order: dataset && dataset.order || 0, + index: datasetIndex, + _dataset: dataset, + _parsed: [], + _sorted: false + }; + metasets.push(meta); + } + return meta; } - for (let i = 0, ilen = this.data.datasets.length; i < ilen; ++i) { - this._updateDataset(i, isFunction(mode) ? mode({datasetIndex: i}) : mode); + getContext() { + return this.$context || (this.$context = createContext(null, { + chart: this, + type: 'chart' + })); } - this.notifyPlugins('afterDatasetsUpdate', {mode}); - } - _updateDataset(index, mode) { - const meta = this.getDatasetMeta(index); - const args = {meta, index, mode, cancelable: true}; - if (this.notifyPlugins('beforeDatasetUpdate', args) === false) { - return; + getVisibleDatasetCount() { + return this.getSortedVisibleDatasetMetas().length; } - meta.controller._update(mode); - args.cancelable = false; - this.notifyPlugins('afterDatasetUpdate', args); - } - render() { - if (this.notifyPlugins('beforeRender', {cancelable: true}) === false) { - return; + isDatasetVisible(datasetIndex) { + const dataset = this.data.datasets[datasetIndex]; + if (!dataset) { + return false; + } + const meta = this.getDatasetMeta(datasetIndex); + return typeof meta.hidden === 'boolean' ? !meta.hidden : !dataset.hidden; } - if (animator.has(this)) { - if (this.attached && !animator.running(this)) { - animator.start(this); - } - } else { - this.draw(); - onAnimationsComplete({chart: this}); + setDatasetVisibility(datasetIndex, visible) { + const meta = this.getDatasetMeta(datasetIndex); + meta.hidden = !visible; } - } - draw() { - let i; - if (this._resizeBeforeDraw) { - const {width, height} = this._resizeBeforeDraw; - this._resize(width, height); - this._resizeBeforeDraw = null; + toggleDataVisibility(index) { + this._hiddenIndices[index] = !this._hiddenIndices[index]; } - this.clear(); - if (this.width <= 0 || this.height <= 0) { - return; + getDataVisibility(index) { + return !this._hiddenIndices[index]; } - if (this.notifyPlugins('beforeDraw', {cancelable: true}) === false) { - return; + _updateVisibility(datasetIndex, dataIndex, visible) { + const mode = visible ? 'show' : 'hide'; + const meta = this.getDatasetMeta(datasetIndex); + const anims = meta.controller._resolveAnimations(undefined, mode); + if (defined(dataIndex)) { + meta.data[dataIndex].hidden = !visible; + this.update(); + } else { + this.setDatasetVisibility(datasetIndex, visible); + anims.update(meta, { + visible + }); + this.update((ctx)=>ctx.datasetIndex === datasetIndex ? mode : undefined); + } } - const layers = this._layers; - for (i = 0; i < layers.length && layers[i].z <= 0; ++i) { - layers[i].draw(this.chartArea); + hide(datasetIndex, dataIndex) { + this._updateVisibility(datasetIndex, dataIndex, false); } - this._drawDatasets(); - for (; i < layers.length; ++i) { - layers[i].draw(this.chartArea); + show(datasetIndex, dataIndex) { + this._updateVisibility(datasetIndex, dataIndex, true); } - this.notifyPlugins('afterDraw'); - } - _getSortedDatasetMetas(filterVisible) { - const metasets = this._sortedMetasets; - const result = []; - let i, ilen; - for (i = 0, ilen = metasets.length; i < ilen; ++i) { - const meta = metasets[i]; - if (!filterVisible || meta.visible) { - result.push(meta); - } + _destroyDatasetMeta(datasetIndex) { + const meta = this._metasets[datasetIndex]; + if (meta && meta.controller) { + meta.controller._destroy(); + } + delete this._metasets[datasetIndex]; } - return result; - } - getSortedVisibleDatasetMetas() { - return this._getSortedDatasetMetas(true); - } - _drawDatasets() { - if (this.notifyPlugins('beforeDatasetsDraw', {cancelable: true}) === false) { - return; + _stop() { + let i, ilen; + this.stop(); + animator.remove(this); + for(i = 0, ilen = this.data.datasets.length; i < ilen; ++i){ + this._destroyDatasetMeta(i); + } } - const metasets = this.getSortedVisibleDatasetMetas(); - for (let i = metasets.length - 1; i >= 0; --i) { - this._drawDataset(metasets[i]); + destroy() { + this.notifyPlugins('beforeDestroy'); + const { canvas , ctx } = this; + this._stop(); + this.config.clearCache(); + if (canvas) { + this.unbindEvents(); + clearCanvas(canvas, ctx); + this.platform.releaseContext(ctx); + this.canvas = null; + this.ctx = null; + } + delete instances[this.id]; + this.notifyPlugins('afterDestroy'); } - this.notifyPlugins('afterDatasetsDraw'); - } - _drawDataset(meta) { - const ctx = this.ctx; - const clip = meta._clip; - const useClip = !clip.disabled; - const area = this.chartArea; - const args = { - meta, - index: meta.index, - cancelable: true - }; - if (this.notifyPlugins('beforeDatasetDraw', args) === false) { - return; + toBase64Image(...args) { + return this.canvas.toDataURL(...args); } - if (useClip) { - clipArea(ctx, { - left: clip.left === false ? 0 : area.left - clip.left, - right: clip.right === false ? this.width : area.right + clip.right, - top: clip.top === false ? 0 : area.top - clip.top, - bottom: clip.bottom === false ? this.height : area.bottom + clip.bottom - }); + bindEvents() { + this.bindUserEvents(); + if (this.options.responsive) { + this.bindResponsiveEvents(); + } else { + this.attached = true; + } } - meta.controller.draw(); - if (useClip) { - unclipArea(ctx); + bindUserEvents() { + const listeners = this._listeners; + const platform = this.platform; + const _add = (type, listener)=>{ + platform.addEventListener(this, type, listener); + listeners[type] = listener; + }; + const listener = (e, x, y)=>{ + e.offsetX = x; + e.offsetY = y; + this._eventHandler(e); + }; + each(this.options.events, (type)=>_add(type, listener)); } - args.cancelable = false; - this.notifyPlugins('afterDatasetDraw', args); - } - isPointInArea(point) { - return _isPointInArea(point, this.chartArea, this._minPadding); - } - getElementsAtEventForMode(e, mode, options, useFinalPosition) { - const method = Interaction.modes[mode]; - if (typeof method === 'function') { - return method(this, e, options, useFinalPosition); + bindResponsiveEvents() { + if (!this._responsiveListeners) { + this._responsiveListeners = {}; + } + const listeners = this._responsiveListeners; + const platform = this.platform; + const _add = (type, listener)=>{ + platform.addEventListener(this, type, listener); + listeners[type] = listener; + }; + const _remove = (type, listener)=>{ + if (listeners[type]) { + platform.removeEventListener(this, type, listener); + delete listeners[type]; + } + }; + const listener = (width, height)=>{ + if (this.canvas) { + this.resize(width, height); + } + }; + let detached; + const attached = ()=>{ + _remove('attach', attached); + this.attached = true; + this.resize(); + _add('resize', listener); + _add('detach', detached); + }; + detached = ()=>{ + this.attached = false; + _remove('resize', listener); + this._stop(); + this._resize(0, 0); + _add('attach', attached); + }; + if (platform.isAttached(this.canvas)) { + attached(); + } else { + detached(); + } } - return []; - } - getDatasetMeta(datasetIndex) { - const dataset = this.data.datasets[datasetIndex]; - const metasets = this._metasets; - let meta = metasets.filter(x => x && x._dataset === dataset).pop(); - if (!meta) { - meta = { - type: null, - data: [], - dataset: null, - controller: null, - hidden: null, - xAxisID: null, - yAxisID: null, - order: dataset && dataset.order || 0, - index: datasetIndex, - _dataset: dataset, - _parsed: [], - _sorted: false - }; - metasets.push(meta); + unbindEvents() { + each(this._listeners, (listener, type)=>{ + this.platform.removeEventListener(this, type, listener); + }); + this._listeners = {}; + each(this._responsiveListeners, (listener, type)=>{ + this.platform.removeEventListener(this, type, listener); + }); + this._responsiveListeners = undefined; } - return meta; - } - getContext() { - return this.$context || (this.$context = createContext(null, {chart: this, type: 'chart'})); - } - getVisibleDatasetCount() { - return this.getSortedVisibleDatasetMetas().length; - } - isDatasetVisible(datasetIndex) { - const dataset = this.data.datasets[datasetIndex]; - if (!dataset) { - return false; + updateHoverStyle(items, mode, enabled) { + const prefix = enabled ? 'set' : 'remove'; + let meta, item, i, ilen; + if (mode === 'dataset') { + meta = this.getDatasetMeta(items[0].datasetIndex); + meta.controller['_' + prefix + 'DatasetHoverStyle'](); + } + for(i = 0, ilen = items.length; i < ilen; ++i){ + item = items[i]; + const controller = item && this.getDatasetMeta(item.datasetIndex).controller; + if (controller) { + controller[prefix + 'HoverStyle'](item.element, item.datasetIndex, item.index); + } + } } - const meta = this.getDatasetMeta(datasetIndex); - return typeof meta.hidden === 'boolean' ? !meta.hidden : !dataset.hidden; - } - setDatasetVisibility(datasetIndex, visible) { - const meta = this.getDatasetMeta(datasetIndex); - meta.hidden = !visible; - } - toggleDataVisibility(index) { - this._hiddenIndices[index] = !this._hiddenIndices[index]; - } - getDataVisibility(index) { - return !this._hiddenIndices[index]; - } - _updateVisibility(datasetIndex, dataIndex, visible) { - const mode = visible ? 'show' : 'hide'; - const meta = this.getDatasetMeta(datasetIndex); - const anims = meta.controller._resolveAnimations(undefined, mode); - if (defined(dataIndex)) { - meta.data[dataIndex].hidden = !visible; - this.update(); - } else { - this.setDatasetVisibility(datasetIndex, visible); - anims.update(meta, {visible}); - this.update((ctx) => ctx.datasetIndex === datasetIndex ? mode : undefined); + getActiveElements() { + return this._active || []; } - } - hide(datasetIndex, dataIndex) { - this._updateVisibility(datasetIndex, dataIndex, false); - } - show(datasetIndex, dataIndex) { - this._updateVisibility(datasetIndex, dataIndex, true); - } - _destroyDatasetMeta(datasetIndex) { - const meta = this._metasets[datasetIndex]; - if (meta && meta.controller) { - meta.controller._destroy(); + setActiveElements(activeElements) { + const lastActive = this._active || []; + const active = activeElements.map(({ datasetIndex , index })=>{ + const meta = this.getDatasetMeta(datasetIndex); + if (!meta) { + throw new Error('No dataset found at index ' + datasetIndex); + } + return { + datasetIndex, + element: meta.data[index], + index + }; + }); + const changed = !_elementsEqual(active, lastActive); + if (changed) { + this._active = active; + this._lastEvent = null; + this._updateHoverStyles(active, lastActive); + } } - delete this._metasets[datasetIndex]; - } - _stop() { - let i, ilen; - this.stop(); - animator.remove(this); - for (i = 0, ilen = this.data.datasets.length; i < ilen; ++i) { - this._destroyDatasetMeta(i); + notifyPlugins(hook, args, filter) { + return this._plugins.notify(this, hook, args, filter); } - } - destroy() { - this.notifyPlugins('beforeDestroy'); - const {canvas, ctx} = this; - this._stop(); - this.config.clearCache(); - if (canvas) { - this.unbindEvents(); - clearCanvas(canvas, ctx); - this.platform.releaseContext(ctx); - this.canvas = null; - this.ctx = null; + isPluginEnabled(pluginId) { + return this._plugins._cache.filter((p)=>p.plugin.id === pluginId).length === 1; } - this.notifyPlugins('destroy'); - delete instances[this.id]; - this.notifyPlugins('afterDestroy'); - } - toBase64Image(...args) { - return this.canvas.toDataURL(...args); - } - bindEvents() { - this.bindUserEvents(); - if (this.options.responsive) { - this.bindResponsiveEvents(); - } else { - this.attached = true; + _updateHoverStyles(active, lastActive, replay) { + const hoverOptions = this.options.hover; + const diff = (a, b)=>a.filter((x)=>!b.some((y)=>x.datasetIndex === y.datasetIndex && x.index === y.index)); + const deactivated = diff(lastActive, active); + const activated = replay ? active : diff(active, lastActive); + if (deactivated.length) { + this.updateHoverStyle(deactivated, hoverOptions.mode, false); + } + if (activated.length && hoverOptions.mode) { + this.updateHoverStyle(activated, hoverOptions.mode, true); + } } - } - bindUserEvents() { - const listeners = this._listeners; - const platform = this.platform; - const _add = (type, listener) => { - platform.addEventListener(this, type, listener); - listeners[type] = listener; - }; - const listener = (e, x, y) => { - e.offsetX = x; - e.offsetY = y; - this._eventHandler(e); - }; - each(this.options.events, (type) => _add(type, listener)); - } - bindResponsiveEvents() { - if (!this._responsiveListeners) { - this._responsiveListeners = {}; + _eventHandler(e, replay) { + const args = { + event: e, + replay, + cancelable: true, + inChartArea: this.isPointInArea(e) + }; + const eventFilter = (plugin)=>(plugin.options.events || this.options.events).includes(e.native.type); + if (this.notifyPlugins('beforeEvent', args, eventFilter) === false) { + return; + } + const changed = this._handleEvent(e, replay, args.inChartArea); + args.cancelable = false; + this.notifyPlugins('afterEvent', args, eventFilter); + if (changed || args.changed) { + this.render(); + } + return this; } - const listeners = this._responsiveListeners; - const platform = this.platform; - const _add = (type, listener) => { - platform.addEventListener(this, type, listener); - listeners[type] = listener; - }; - const _remove = (type, listener) => { - if (listeners[type]) { - platform.removeEventListener(this, type, listener); - delete listeners[type]; - } - }; - const listener = (width, height) => { - if (this.canvas) { - this.resize(width, height); - } - }; - let detached; - const attached = () => { - _remove('attach', attached); - this.attached = true; - this.resize(); - _add('resize', listener); - _add('detach', detached); - }; - detached = () => { - this.attached = false; - _remove('resize', listener); - this._stop(); - this._resize(0, 0); - _add('attach', attached); - }; - if (platform.isAttached(this.canvas)) { - attached(); - } else { - detached(); + _handleEvent(e, replay, inChartArea) { + const { _active: lastActive = [] , options } = this; + const useFinalPosition = replay; + const active = this._getActiveElements(e, lastActive, inChartArea, useFinalPosition); + const isClick = _isClickEvent(e); + const lastEvent = determineLastEvent(e, this._lastEvent, inChartArea, isClick); + if (inChartArea) { + this._lastEvent = null; + callback(options.onHover, [ + e, + active, + this + ], this); + if (isClick) { + callback(options.onClick, [ + e, + active, + this + ], this); + } + } + const changed = !_elementsEqual(active, lastActive); + if (changed || replay) { + this._active = active; + this._updateHoverStyles(active, lastActive, replay); + } + this._lastEvent = lastEvent; + return changed; } - } - unbindEvents() { - each(this._listeners, (listener, type) => { - this.platform.removeEventListener(this, type, listener); - }); - this._listeners = {}; - each(this._responsiveListeners, (listener, type) => { - this.platform.removeEventListener(this, type, listener); - }); - this._responsiveListeners = undefined; - } - updateHoverStyle(items, mode, enabled) { - const prefix = enabled ? 'set' : 'remove'; - let meta, item, i, ilen; - if (mode === 'dataset') { - meta = this.getDatasetMeta(items[0].datasetIndex); - meta.controller['_' + prefix + 'DatasetHoverStyle'](); + _getActiveElements(e, lastActive, inChartArea, useFinalPosition) { + if (e.type === 'mouseout') { + return []; + } + if (!inChartArea) { + return lastActive; + } + const hoverOptions = this.options.hover; + return this.getElementsAtEventForMode(e, hoverOptions.mode, hoverOptions, useFinalPosition); } - for (i = 0, ilen = items.length; i < ilen; ++i) { - item = items[i]; - const controller = item && this.getDatasetMeta(item.datasetIndex).controller; - if (controller) { - controller[prefix + 'HoverStyle'](item.element, item.datasetIndex, item.index); - } - } - } - getActiveElements() { - return this._active || []; - } - setActiveElements(activeElements) { - const lastActive = this._active || []; - const active = activeElements.map(({datasetIndex, index}) => { - const meta = this.getDatasetMeta(datasetIndex); - if (!meta) { - throw new Error('No dataset found at index ' + datasetIndex); - } - return { - datasetIndex, - element: meta.data[index], - index, - }; - }); - const changed = !_elementsEqual(active, lastActive); - if (changed) { - this._active = active; - this._lastEvent = null; - this._updateHoverStyles(active, lastActive); - } - } - notifyPlugins(hook, args, filter) { - return this._plugins.notify(this, hook, args, filter); - } - _updateHoverStyles(active, lastActive, replay) { - const hoverOptions = this.options.hover; - const diff = (a, b) => a.filter(x => !b.some(y => x.datasetIndex === y.datasetIndex && x.index === y.index)); - const deactivated = diff(lastActive, active); - const activated = replay ? active : diff(active, lastActive); - if (deactivated.length) { - this.updateHoverStyle(deactivated, hoverOptions.mode, false); - } - if (activated.length && hoverOptions.mode) { - this.updateHoverStyle(activated, hoverOptions.mode, true); - } - } - _eventHandler(e, replay) { - const args = { - event: e, - replay, - cancelable: true, - inChartArea: this.isPointInArea(e) - }; - const eventFilter = (plugin) => (plugin.options.events || this.options.events).includes(e.native.type); - if (this.notifyPlugins('beforeEvent', args, eventFilter) === false) { - return; - } - const changed = this._handleEvent(e, replay, args.inChartArea); - args.cancelable = false; - this.notifyPlugins('afterEvent', args, eventFilter); - if (changed || args.changed) { - this.render(); - } - return this; - } - _handleEvent(e, replay, inChartArea) { - const {_active: lastActive = [], options} = this; - const useFinalPosition = replay; - const active = this._getActiveElements(e, lastActive, inChartArea, useFinalPosition); - const isClick = _isClickEvent(e); - const lastEvent = determineLastEvent(e, this._lastEvent, inChartArea, isClick); - if (inChartArea) { - this._lastEvent = null; - callback(options.onHover, [e, active, this], this); - if (isClick) { - callback(options.onClick, [e, active, this], this); - } - } - const changed = !_elementsEqual(active, lastActive); - if (changed || replay) { - this._active = active; - this._updateHoverStyles(active, lastActive, replay); - } - this._lastEvent = lastEvent; - return changed; - } - _getActiveElements(e, lastActive, inChartArea, useFinalPosition) { - if (e.type === 'mouseout') { - return []; - } - if (!inChartArea) { - return lastActive; - } - const hoverOptions = this.options.hover; - return this.getElementsAtEventForMode(e, hoverOptions.mode, hoverOptions, useFinalPosition); - } } -const invalidatePlugins = () => each(Chart.instances, (chart) => chart._plugins.invalidate()); -const enumerable = true; -Object.defineProperties(Chart, { - defaults: { - enumerable, - value: defaults - }, - instances: { - enumerable, - value: instances - }, - overrides: { - enumerable, - value: overrides - }, - registry: { - enumerable, - value: registry - }, - version: { - enumerable, - value: version - }, - getChart: { - enumerable, - value: getChart - }, - register: { - enumerable, - value: (...items) => { - registry.add(...items); - invalidatePlugins(); - } - }, - unregister: { - enumerable, - value: (...items) => { - registry.remove(...items); - invalidatePlugins(); - } - } -}); +function invalidatePlugins() { + return each(Chart.instances, (chart)=>chart._plugins.invalidate()); +} -function abstract() { - throw new Error('This method is not implemented: Check that a complete date adapter is provided.'); +/** + * @namespace Chart._adapters + * @since 2.8.0 + * @private + */ function abstract() { + throw new Error('This method is not implemented: Check that a complete date adapter is provided.'); } -class DateAdapter { - constructor(options) { - this.options = options || {}; - } - formats() { - return abstract(); - } - parse(value, format) { - return abstract(); - } - format(timestamp, format) { - return abstract(); - } - add(timestamp, amount, unit) { - return abstract(); - } - diff(a, b, unit) { - return abstract(); - } - startOf(timestamp, unit, weekday) { - return abstract(); - } - endOf(timestamp, unit) { - return abstract(); - } +/** + * Date adapter (current used by the time scale) + * @namespace Chart._adapters._date + * @memberof Chart._adapters + * @private + */ class DateAdapterBase { + /** + * Override default date adapter methods. + * Accepts type parameter to define options type. + * @example + * Chart._adapters._date.override<{myAdapterOption: string}>({ + * init() { + * console.log(this.options.myAdapterOption); + * } + * }) + */ static override(members) { + Object.assign(DateAdapterBase.prototype, members); + } + constructor(options){ + this.options = options || {}; + } + // eslint-disable-next-line @typescript-eslint/no-empty-function + init() {} + formats() { + return abstract(); + } + parse() { + return abstract(); + } + format() { + return abstract(); + } + add() { + return abstract(); + } + diff() { + return abstract(); + } + startOf() { + return abstract(); + } + endOf() { + return abstract(); + } } -DateAdapter.override = function(members) { - Object.assign(DateAdapter.prototype, members); -}; var _adapters = { - _date: DateAdapter + _date: DateAdapterBase }; function getAllScaleValues(scale, type) { - if (!scale._cache.$bar) { - const visibleMetas = scale.getMatchingVisibleMetas(type); - let values = []; - for (let i = 0, ilen = visibleMetas.length; i < ilen; i++) { - values = values.concat(visibleMetas[i].controller.getAllParsedValues(scale)); + if (!scale._cache.$bar) { + const visibleMetas = scale.getMatchingVisibleMetas(type); + let values = []; + for(let i = 0, ilen = visibleMetas.length; i < ilen; i++){ + values = values.concat(visibleMetas[i].controller.getAllParsedValues(scale)); + } + scale._cache.$bar = _arrayUnique(values.sort((a, b)=>a - b)); } - scale._cache.$bar = _arrayUnique(values.sort((a, b) => a - b)); - } - return scale._cache.$bar; + return scale._cache.$bar; } -function computeMinSampleSize(meta) { - const scale = meta.iScale; - const values = getAllScaleValues(scale, meta.type); - let min = scale._length; - let i, ilen, curr, prev; - const updateMinAndPrev = () => { - if (curr === 32767 || curr === -32768) { - return; + function computeMinSampleSize(meta) { + const scale = meta.iScale; + const values = getAllScaleValues(scale, meta.type); + let min = scale._length; + let i, ilen, curr, prev; + const updateMinAndPrev = ()=>{ + if (curr === 32767 || curr === -32768) { + return; + } + if (defined(prev)) { + min = Math.min(min, Math.abs(curr - prev) || min); + } + prev = curr; + }; + for(i = 0, ilen = values.length; i < ilen; ++i){ + curr = scale.getPixelForValue(values[i]); + updateMinAndPrev(); } - if (defined(prev)) { - min = Math.min(min, Math.abs(curr - prev) || min); + prev = undefined; + for(i = 0, ilen = scale.ticks.length; i < ilen; ++i){ + curr = scale.getPixelForTick(i); + updateMinAndPrev(); } - prev = curr; - }; - for (i = 0, ilen = values.length; i < ilen; ++i) { - curr = scale.getPixelForValue(values[i]); - updateMinAndPrev(); - } - prev = undefined; - for (i = 0, ilen = scale.ticks.length; i < ilen; ++i) { - curr = scale.getPixelForTick(i); - updateMinAndPrev(); - } - return min; + return min; } -function computeFitCategoryTraits(index, ruler, options, stackCount) { - const thickness = options.barThickness; - let size, ratio; - if (isNullOrUndef(thickness)) { - size = ruler.min * options.categoryPercentage; - ratio = options.barPercentage; - } else { - size = thickness * stackCount; - ratio = 1; - } - return { - chunk: size / stackCount, - ratio, - start: ruler.pixels[index] - (size / 2) - }; + function computeFitCategoryTraits(index, ruler, options, stackCount) { + const thickness = options.barThickness; + let size, ratio; + if (isNullOrUndef(thickness)) { + size = ruler.min * options.categoryPercentage; + ratio = options.barPercentage; + } else { + size = thickness * stackCount; + ratio = 1; + } + return { + chunk: size / stackCount, + ratio, + start: ruler.pixels[index] - size / 2 + }; } -function computeFlexCategoryTraits(index, ruler, options, stackCount) { - const pixels = ruler.pixels; - const curr = pixels[index]; - let prev = index > 0 ? pixels[index - 1] : null; - let next = index < pixels.length - 1 ? pixels[index + 1] : null; - const percent = options.categoryPercentage; - if (prev === null) { - prev = curr - (next === null ? ruler.end - ruler.start : next - curr); - } - if (next === null) { - next = curr + curr - prev; - } - const start = curr - (curr - Math.min(prev, next)) / 2 * percent; - const size = Math.abs(next - prev) / 2 * percent; - return { - chunk: size / stackCount, - ratio: options.barPercentage, - start - }; + function computeFlexCategoryTraits(index, ruler, options, stackCount) { + const pixels = ruler.pixels; + const curr = pixels[index]; + let prev = index > 0 ? pixels[index - 1] : null; + let next = index < pixels.length - 1 ? pixels[index + 1] : null; + const percent = options.categoryPercentage; + if (prev === null) { + prev = curr - (next === null ? ruler.end - ruler.start : next - curr); + } + if (next === null) { + next = curr + curr - prev; + } + const start = curr - (curr - Math.min(prev, next)) / 2 * percent; + const size = Math.abs(next - prev) / 2 * percent; + return { + chunk: size / stackCount, + ratio: options.barPercentage, + start + }; } function parseFloatBar(entry, item, vScale, i) { - const startValue = vScale.parse(entry[0], i); - const endValue = vScale.parse(entry[1], i); - const min = Math.min(startValue, endValue); - const max = Math.max(startValue, endValue); - let barStart = min; - let barEnd = max; - if (Math.abs(min) > Math.abs(max)) { - barStart = max; - barEnd = min; - } - item[vScale.axis] = barEnd; - item._custom = { - barStart, - barEnd, - start: startValue, - end: endValue, - min, - max - }; + const startValue = vScale.parse(entry[0], i); + const endValue = vScale.parse(entry[1], i); + const min = Math.min(startValue, endValue); + const max = Math.max(startValue, endValue); + let barStart = min; + let barEnd = max; + if (Math.abs(min) > Math.abs(max)) { + barStart = max; + barEnd = min; + } + item[vScale.axis] = barEnd; + item._custom = { + barStart, + barEnd, + start: startValue, + end: endValue, + min, + max + }; } function parseValue(entry, item, vScale, i) { - if (isArray(entry)) { - parseFloatBar(entry, item, vScale, i); - } else { - item[vScale.axis] = vScale.parse(entry, i); - } - return item; + if (isArray(entry)) { + parseFloatBar(entry, item, vScale, i); + } else { + item[vScale.axis] = vScale.parse(entry, i); + } + return item; } function parseArrayOrPrimitive(meta, data, start, count) { - const iScale = meta.iScale; - const vScale = meta.vScale; - const labels = iScale.getLabels(); - const singleScale = iScale === vScale; - const parsed = []; - let i, ilen, item, entry; - for (i = start, ilen = start + count; i < ilen; ++i) { - entry = data[i]; - item = {}; - item[iScale.axis] = singleScale || iScale.parse(labels[i], i); - parsed.push(parseValue(entry, item, vScale, i)); - } - return parsed; + const iScale = meta.iScale; + const vScale = meta.vScale; + const labels = iScale.getLabels(); + const singleScale = iScale === vScale; + const parsed = []; + let i, ilen, item, entry; + for(i = start, ilen = start + count; i < ilen; ++i){ + entry = data[i]; + item = {}; + item[iScale.axis] = singleScale || iScale.parse(labels[i], i); + parsed.push(parseValue(entry, item, vScale, i)); + } + return parsed; } function isFloatBar(custom) { - return custom && custom.barStart !== undefined && custom.barEnd !== undefined; + return custom && custom.barStart !== undefined && custom.barEnd !== undefined; } function barSign(size, vScale, actualBase) { - if (size !== 0) { - return sign(size); - } - return (vScale.isHorizontal() ? 1 : -1) * (vScale.min >= actualBase ? 1 : -1); + if (size !== 0) { + return sign(size); + } + return (vScale.isHorizontal() ? 1 : -1) * (vScale.min >= actualBase ? 1 : -1); } function borderProps(properties) { - let reverse, start, end, top, bottom; - if (properties.horizontal) { - reverse = properties.base > properties.x; - start = 'left'; - end = 'right'; - } else { - reverse = properties.base < properties.y; - start = 'bottom'; - end = 'top'; - } - if (reverse) { - top = 'end'; - bottom = 'start'; - } else { - top = 'start'; - bottom = 'end'; - } - return {start, end, reverse, top, bottom}; + let reverse, start, end, top, bottom; + if (properties.horizontal) { + reverse = properties.base > properties.x; + start = 'left'; + end = 'right'; + } else { + reverse = properties.base < properties.y; + start = 'bottom'; + end = 'top'; + } + if (reverse) { + top = 'end'; + bottom = 'start'; + } else { + top = 'start'; + bottom = 'end'; + } + return { + start, + end, + reverse, + top, + bottom + }; } function setBorderSkipped(properties, options, stack, index) { - let edge = options.borderSkipped; - const res = {}; - if (!edge) { - properties.borderSkipped = res; - return; - } - const {start, end, reverse, top, bottom} = borderProps(properties); - if (edge === 'middle' && stack) { - properties.enableBorderRadius = true; - if ((stack._top || 0) === index) { - edge = top; - } else if ((stack._bottom || 0) === index) { - edge = bottom; - } else { - res[parseEdge(bottom, start, end, reverse)] = true; - edge = top; + let edge = options.borderSkipped; + const res = {}; + if (!edge) { + properties.borderSkipped = res; + return; } - } - res[parseEdge(edge, start, end, reverse)] = true; - properties.borderSkipped = res; + if (edge === true) { + properties.borderSkipped = { + top: true, + right: true, + bottom: true, + left: true + }; + return; + } + const { start , end , reverse , top , bottom } = borderProps(properties); + if (edge === 'middle' && stack) { + properties.enableBorderRadius = true; + if ((stack._top || 0) === index) { + edge = top; + } else if ((stack._bottom || 0) === index) { + edge = bottom; + } else { + res[parseEdge(bottom, start, end, reverse)] = true; + edge = top; + } + } + res[parseEdge(edge, start, end, reverse)] = true; + properties.borderSkipped = res; } function parseEdge(edge, a, b, reverse) { - if (reverse) { - edge = swap(edge, a, b); - edge = startEnd(edge, b, a); - } else { - edge = startEnd(edge, a, b); - } - return edge; + if (reverse) { + edge = swap(edge, a, b); + edge = startEnd(edge, b, a); + } else { + edge = startEnd(edge, a, b); + } + return edge; } function swap(orig, v1, v2) { - return orig === v1 ? v2 : orig === v2 ? v1 : orig; + return orig === v1 ? v2 : orig === v2 ? v1 : orig; } function startEnd(v, start, end) { - return v === 'start' ? start : v === 'end' ? end : v; + return v === 'start' ? start : v === 'end' ? end : v; } -function setInflateAmount(properties, {inflateAmount}, ratio) { - properties.inflateAmount = inflateAmount === 'auto' - ? ratio === 1 ? 0.33 : 0 - : inflateAmount; +function setInflateAmount(properties, { inflateAmount }, ratio) { + properties.inflateAmount = inflateAmount === 'auto' ? ratio === 1 ? 0.33 : 0 : inflateAmount; } class BarController extends DatasetController { - parsePrimitiveData(meta, data, start, count) { - return parseArrayOrPrimitive(meta, data, start, count); - } - parseArrayData(meta, data, start, count) { - return parseArrayOrPrimitive(meta, data, start, count); - } - parseObjectData(meta, data, start, count) { - const {iScale, vScale} = meta; - const {xAxisKey = 'x', yAxisKey = 'y'} = this._parsing; - const iAxisKey = iScale.axis === 'x' ? xAxisKey : yAxisKey; - const vAxisKey = vScale.axis === 'x' ? xAxisKey : yAxisKey; - const parsed = []; - let i, ilen, item, obj; - for (i = start, ilen = start + count; i < ilen; ++i) { - obj = data[i]; - item = {}; - item[iScale.axis] = iScale.parse(resolveObjectKey(obj, iAxisKey), i); - parsed.push(parseValue(resolveObjectKey(obj, vAxisKey), item, vScale, i)); - } - return parsed; - } - updateRangeFromParsed(range, scale, parsed, stack) { - super.updateRangeFromParsed(range, scale, parsed, stack); - const custom = parsed._custom; - if (custom && scale === this._cachedMeta.vScale) { - range.min = Math.min(range.min, custom.min); - range.max = Math.max(range.max, custom.max); - } - } - getMaxOverflow() { - return 0; - } - getLabelAndValue(index) { - const meta = this._cachedMeta; - const {iScale, vScale} = meta; - const parsed = this.getParsed(index); - const custom = parsed._custom; - const value = isFloatBar(custom) - ? '[' + custom.start + ', ' + custom.end + ']' - : '' + vScale.getLabelForValue(parsed[vScale.axis]); - return { - label: '' + iScale.getLabelForValue(parsed[iScale.axis]), - value - }; - } - initialize() { - this.enableOptionSharing = true; - super.initialize(); - const meta = this._cachedMeta; - meta.stack = this.getDataset().stack; - } - update(mode) { - const meta = this._cachedMeta; - this.updateElements(meta.data, 0, meta.data.length, mode); - } - updateElements(bars, start, count, mode) { - const reset = mode === 'reset'; - const {index, _cachedMeta: {vScale}} = this; - const base = vScale.getBasePixel(); - const horizontal = vScale.isHorizontal(); - const ruler = this._getRuler(); - const firstOpts = this.resolveDataElementOptions(start, mode); - const sharedOptions = this.getSharedOptions(firstOpts); - const includeOptions = this.includeOptions(mode, sharedOptions); - this.updateSharedOptions(sharedOptions, mode, firstOpts); - for (let i = start; i < start + count; i++) { - const parsed = this.getParsed(i); - const vpixels = reset || isNullOrUndef(parsed[vScale.axis]) ? {base, head: base} : this._calculateBarValuePixels(i); - const ipixels = this._calculateBarIndexPixels(i, ruler); - const stack = (parsed._stacks || {})[vScale.axis]; - const properties = { - horizontal, - base: vpixels.base, - enableBorderRadius: !stack || isFloatBar(parsed._custom) || (index === stack._top || index === stack._bottom), - x: horizontal ? vpixels.head : ipixels.center, - y: horizontal ? ipixels.center : vpixels.head, - height: horizontal ? ipixels.size : Math.abs(vpixels.size), - width: horizontal ? Math.abs(vpixels.size) : ipixels.size - }; - if (includeOptions) { - properties.options = sharedOptions || this.resolveDataElementOptions(i, bars[i].active ? 'active' : mode); - } - const options = properties.options || bars[i].options; - setBorderSkipped(properties, options, stack, index); - setInflateAmount(properties, options, ruler.ratio); - this.updateElement(bars[i], i, properties, mode); - } - } - _getStacks(last, dataIndex) { - const meta = this._cachedMeta; - const iScale = meta.iScale; - const metasets = iScale.getMatchingVisibleMetas(this._type); - const stacked = iScale.options.stacked; - const ilen = metasets.length; - const stacks = []; - let i, item; - for (i = 0; i < ilen; ++i) { - item = metasets[i]; - if (!item.controller.options.grouped) { - continue; - } - if (typeof dataIndex !== 'undefined') { - const val = item.controller.getParsed(dataIndex)[ - item.controller._cachedMeta.vScale.axis - ]; - if (isNullOrUndef(val) || isNaN(val)) { - continue; + static id = 'bar'; + static defaults = { + datasetElementType: false, + dataElementType: 'bar', + categoryPercentage: 0.8, + barPercentage: 0.9, + grouped: true, + animations: { + numbers: { + type: 'number', + properties: [ + 'x', + 'y', + 'base', + 'width', + 'height' + ] + } } - } - if (stacked === false || stacks.indexOf(item.stack) === -1 || - (stacked === undefined && item.stack === undefined)) { - stacks.push(item.stack); - } - if (item.index === last) { - break; - } - } - if (!stacks.length) { - stacks.push(undefined); - } - return stacks; - } - _getStackCount(index) { - return this._getStacks(undefined, index).length; - } - _getStackIndex(datasetIndex, name, dataIndex) { - const stacks = this._getStacks(datasetIndex, dataIndex); - const index = (name !== undefined) - ? stacks.indexOf(name) - : -1; - return (index === -1) - ? stacks.length - 1 - : index; - } - _getRuler() { - const opts = this.options; - const meta = this._cachedMeta; - const iScale = meta.iScale; - const pixels = []; - let i, ilen; - for (i = 0, ilen = meta.data.length; i < ilen; ++i) { - pixels.push(iScale.getPixelForValue(this.getParsed(i)[iScale.axis], i)); - } - const barThickness = opts.barThickness; - const min = barThickness || computeMinSampleSize(meta); - return { - min, - pixels, - start: iScale._startPixel, - end: iScale._endPixel, - stackCount: this._getStackCount(), - scale: iScale, - grouped: opts.grouped, - ratio: barThickness ? 1 : opts.categoryPercentage * opts.barPercentage }; - } - _calculateBarValuePixels(index) { - const {_cachedMeta: {vScale, _stacked}, options: {base: baseValue, minBarLength}} = this; - const actualBase = baseValue || 0; - const parsed = this.getParsed(index); - const custom = parsed._custom; - const floating = isFloatBar(custom); - let value = parsed[vScale.axis]; - let start = 0; - let length = _stacked ? this.applyStack(vScale, parsed, _stacked) : value; - let head, size; - if (length !== value) { - start = length - value; - length = value; - } - if (floating) { - value = custom.barStart; - length = custom.barEnd - custom.barStart; - if (value !== 0 && sign(value) !== sign(custom.barEnd)) { - start = 0; - } - start += value; - } - const startValue = !isNullOrUndef(baseValue) && !floating ? baseValue : start; - let base = vScale.getPixelForValue(startValue); - if (this.chart.getDataVisibility(index)) { - head = vScale.getPixelForValue(start + length); - } else { - head = base; - } - size = head - base; - if (Math.abs(size) < minBarLength) { - size = barSign(size, vScale, actualBase) * minBarLength; - if (value === actualBase) { - base -= size / 2; - } - const startPixel = vScale.getPixelForDecimal(0); - const endPixel = vScale.getPixelForDecimal(1); - const min = Math.min(startPixel, endPixel); - const max = Math.max(startPixel, endPixel); - base = Math.max(Math.min(base, max), min); - head = base + size; - } - if (base === vScale.getPixelForValue(actualBase)) { - const halfGrid = sign(size) * vScale.getLineWidthForValue(actualBase) / 2; - base += halfGrid; - size -= halfGrid; - } - return { - size, - base, - head, - center: head + size / 2 + static overrides = { + scales: { + _index_: { + type: 'category', + offset: true, + grid: { + offset: true + } + }, + _value_: { + type: 'linear', + beginAtZero: true + } + } }; - } - _calculateBarIndexPixels(index, ruler) { - const scale = ruler.scale; - const options = this.options; - const skipNull = options.skipNull; - const maxBarThickness = valueOrDefault(options.maxBarThickness, Infinity); - let center, size; - if (ruler.grouped) { - const stackCount = skipNull ? this._getStackCount(index) : ruler.stackCount; - const range = options.barThickness === 'flex' - ? computeFlexCategoryTraits(index, ruler, options, stackCount) - : computeFitCategoryTraits(index, ruler, options, stackCount); - const stackIndex = this._getStackIndex(this.index, this._cachedMeta.stack, skipNull ? index : undefined); - center = range.start + (range.chunk * stackIndex) + (range.chunk / 2); - size = Math.min(maxBarThickness, range.chunk * range.ratio); - } else { - center = scale.getPixelForValue(this.getParsed(index)[scale.axis], index); - size = Math.min(maxBarThickness, ruler.min * ruler.ratio); + parsePrimitiveData(meta, data, start, count) { + return parseArrayOrPrimitive(meta, data, start, count); } - return { - base: center - size / 2, - head: center + size / 2, - center, - size - }; - } - draw() { - const meta = this._cachedMeta; - const vScale = meta.vScale; - const rects = meta.data; - const ilen = rects.length; - let i = 0; - for (; i < ilen; ++i) { - if (this.getParsed(i)[vScale.axis] !== null) { - rects[i].draw(this._ctx); - } + parseArrayData(meta, data, start, count) { + return parseArrayOrPrimitive(meta, data, start, count); + } + parseObjectData(meta, data, start, count) { + const { iScale , vScale } = meta; + const { xAxisKey ='x' , yAxisKey ='y' } = this._parsing; + const iAxisKey = iScale.axis === 'x' ? xAxisKey : yAxisKey; + const vAxisKey = vScale.axis === 'x' ? xAxisKey : yAxisKey; + const parsed = []; + let i, ilen, item, obj; + for(i = start, ilen = start + count; i < ilen; ++i){ + obj = data[i]; + item = {}; + item[iScale.axis] = iScale.parse(resolveObjectKey(obj, iAxisKey), i); + parsed.push(parseValue(resolveObjectKey(obj, vAxisKey), item, vScale, i)); + } + return parsed; + } + updateRangeFromParsed(range, scale, parsed, stack) { + super.updateRangeFromParsed(range, scale, parsed, stack); + const custom = parsed._custom; + if (custom && scale === this._cachedMeta.vScale) { + range.min = Math.min(range.min, custom.min); + range.max = Math.max(range.max, custom.max); + } + } + getMaxOverflow() { + return 0; + } + getLabelAndValue(index) { + const meta = this._cachedMeta; + const { iScale , vScale } = meta; + const parsed = this.getParsed(index); + const custom = parsed._custom; + const value = isFloatBar(custom) ? '[' + custom.start + ', ' + custom.end + ']' : '' + vScale.getLabelForValue(parsed[vScale.axis]); + return { + label: '' + iScale.getLabelForValue(parsed[iScale.axis]), + value + }; + } + initialize() { + this.enableOptionSharing = true; + super.initialize(); + const meta = this._cachedMeta; + meta.stack = this.getDataset().stack; + } + update(mode) { + const meta = this._cachedMeta; + this.updateElements(meta.data, 0, meta.data.length, mode); + } + updateElements(bars, start, count, mode) { + const reset = mode === 'reset'; + const { index , _cachedMeta: { vScale } } = this; + const base = vScale.getBasePixel(); + const horizontal = vScale.isHorizontal(); + const ruler = this._getRuler(); + const { sharedOptions , includeOptions } = this._getSharedOptions(start, mode); + for(let i = start; i < start + count; i++){ + const parsed = this.getParsed(i); + const vpixels = reset || isNullOrUndef(parsed[vScale.axis]) ? { + base, + head: base + } : this._calculateBarValuePixels(i); + const ipixels = this._calculateBarIndexPixels(i, ruler); + const stack = (parsed._stacks || {})[vScale.axis]; + const properties = { + horizontal, + base: vpixels.base, + enableBorderRadius: !stack || isFloatBar(parsed._custom) || index === stack._top || index === stack._bottom, + x: horizontal ? vpixels.head : ipixels.center, + y: horizontal ? ipixels.center : vpixels.head, + height: horizontal ? ipixels.size : Math.abs(vpixels.size), + width: horizontal ? Math.abs(vpixels.size) : ipixels.size + }; + if (includeOptions) { + properties.options = sharedOptions || this.resolveDataElementOptions(i, bars[i].active ? 'active' : mode); + } + const options = properties.options || bars[i].options; + setBorderSkipped(properties, options, stack, index); + setInflateAmount(properties, options, ruler.ratio); + this.updateElement(bars[i], i, properties, mode); + } + } + _getStacks(last, dataIndex) { + const { iScale } = this._cachedMeta; + const metasets = iScale.getMatchingVisibleMetas(this._type).filter((meta)=>meta.controller.options.grouped); + const stacked = iScale.options.stacked; + const stacks = []; + const skipNull = (meta)=>{ + const parsed = meta.controller.getParsed(dataIndex); + const val = parsed && parsed[meta.vScale.axis]; + if (isNullOrUndef(val) || isNaN(val)) { + return true; + } + }; + for (const meta of metasets){ + if (dataIndex !== undefined && skipNull(meta)) { + continue; + } + if (stacked === false || stacks.indexOf(meta.stack) === -1 || stacked === undefined && meta.stack === undefined) { + stacks.push(meta.stack); + } + if (meta.index === last) { + break; + } + } + if (!stacks.length) { + stacks.push(undefined); + } + return stacks; + } + _getStackCount(index) { + return this._getStacks(undefined, index).length; + } + _getStackIndex(datasetIndex, name, dataIndex) { + const stacks = this._getStacks(datasetIndex, dataIndex); + const index = name !== undefined ? stacks.indexOf(name) : -1; + return index === -1 ? stacks.length - 1 : index; + } + _getRuler() { + const opts = this.options; + const meta = this._cachedMeta; + const iScale = meta.iScale; + const pixels = []; + let i, ilen; + for(i = 0, ilen = meta.data.length; i < ilen; ++i){ + pixels.push(iScale.getPixelForValue(this.getParsed(i)[iScale.axis], i)); + } + const barThickness = opts.barThickness; + const min = barThickness || computeMinSampleSize(meta); + return { + min, + pixels, + start: iScale._startPixel, + end: iScale._endPixel, + stackCount: this._getStackCount(), + scale: iScale, + grouped: opts.grouped, + ratio: barThickness ? 1 : opts.categoryPercentage * opts.barPercentage + }; + } + _calculateBarValuePixels(index) { + const { _cachedMeta: { vScale , _stacked , index: datasetIndex } , options: { base: baseValue , minBarLength } } = this; + const actualBase = baseValue || 0; + const parsed = this.getParsed(index); + const custom = parsed._custom; + const floating = isFloatBar(custom); + let value = parsed[vScale.axis]; + let start = 0; + let length = _stacked ? this.applyStack(vScale, parsed, _stacked) : value; + let head, size; + if (length !== value) { + start = length - value; + length = value; + } + if (floating) { + value = custom.barStart; + length = custom.barEnd - custom.barStart; + if (value !== 0 && sign(value) !== sign(custom.barEnd)) { + start = 0; + } + start += value; + } + const startValue = !isNullOrUndef(baseValue) && !floating ? baseValue : start; + let base = vScale.getPixelForValue(startValue); + if (this.chart.getDataVisibility(index)) { + head = vScale.getPixelForValue(start + length); + } else { + head = base; + } + size = head - base; + if (Math.abs(size) < minBarLength) { + size = barSign(size, vScale, actualBase) * minBarLength; + if (value === actualBase) { + base -= size / 2; + } + const startPixel = vScale.getPixelForDecimal(0); + const endPixel = vScale.getPixelForDecimal(1); + const min = Math.min(startPixel, endPixel); + const max = Math.max(startPixel, endPixel); + base = Math.max(Math.min(base, max), min); + head = base + size; + if (_stacked && !floating) { + parsed._stacks[vScale.axis]._visualValues[datasetIndex] = vScale.getValueForPixel(head) - vScale.getValueForPixel(base); + } + } + if (base === vScale.getPixelForValue(actualBase)) { + const halfGrid = sign(size) * vScale.getLineWidthForValue(actualBase) / 2; + base += halfGrid; + size -= halfGrid; + } + return { + size, + base, + head, + center: head + size / 2 + }; + } + _calculateBarIndexPixels(index, ruler) { + const scale = ruler.scale; + const options = this.options; + const skipNull = options.skipNull; + const maxBarThickness = valueOrDefault(options.maxBarThickness, Infinity); + let center, size; + if (ruler.grouped) { + const stackCount = skipNull ? this._getStackCount(index) : ruler.stackCount; + const range = options.barThickness === 'flex' ? computeFlexCategoryTraits(index, ruler, options, stackCount) : computeFitCategoryTraits(index, ruler, options, stackCount); + const stackIndex = this._getStackIndex(this.index, this._cachedMeta.stack, skipNull ? index : undefined); + center = range.start + range.chunk * stackIndex + range.chunk / 2; + size = Math.min(maxBarThickness, range.chunk * range.ratio); + } else { + center = scale.getPixelForValue(this.getParsed(index)[scale.axis], index); + size = Math.min(maxBarThickness, ruler.min * ruler.ratio); + } + return { + base: center - size / 2, + head: center + size / 2, + center, + size + }; + } + draw() { + const meta = this._cachedMeta; + const vScale = meta.vScale; + const rects = meta.data; + const ilen = rects.length; + let i = 0; + for(; i < ilen; ++i){ + if (this.getParsed(i)[vScale.axis] !== null) { + rects[i].draw(this._ctx); + } + } } - } } -BarController.id = 'bar'; -BarController.defaults = { - datasetElementType: false, - dataElementType: 'bar', - categoryPercentage: 0.8, - barPercentage: 0.9, - grouped: true, - animations: { - numbers: { - type: 'number', - properties: ['x', 'y', 'base', 'width', 'height'] - } - } -}; -BarController.overrides = { - scales: { - _index_: { - type: 'category', - offset: true, - grid: { - offset: true - } - }, - _value_: { - type: 'linear', - beginAtZero: true, - } - } -}; class BubbleController extends DatasetController { - initialize() { - this.enableOptionSharing = true; - super.initialize(); - } - parsePrimitiveData(meta, data, start, count) { - const parsed = super.parsePrimitiveData(meta, data, start, count); - for (let i = 0; i < parsed.length; i++) { - parsed[i]._custom = this.resolveDataElementOptions(i + start).radius; - } - return parsed; - } - parseArrayData(meta, data, start, count) { - const parsed = super.parseArrayData(meta, data, start, count); - for (let i = 0; i < parsed.length; i++) { - const item = data[start + i]; - parsed[i]._custom = valueOrDefault(item[2], this.resolveDataElementOptions(i + start).radius); - } - return parsed; - } - parseObjectData(meta, data, start, count) { - const parsed = super.parseObjectData(meta, data, start, count); - for (let i = 0; i < parsed.length; i++) { - const item = data[start + i]; - parsed[i]._custom = valueOrDefault(item && item.r && +item.r, this.resolveDataElementOptions(i + start).radius); - } - return parsed; - } - getMaxOverflow() { - const data = this._cachedMeta.data; - let max = 0; - for (let i = data.length - 1; i >= 0; --i) { - max = Math.max(max, data[i].size(this.resolveDataElementOptions(i)) / 2); - } - return max > 0 && max; - } - getLabelAndValue(index) { - const meta = this._cachedMeta; - const {xScale, yScale} = meta; - const parsed = this.getParsed(index); - const x = xScale.getLabelForValue(parsed.x); - const y = yScale.getLabelForValue(parsed.y); - const r = parsed._custom; - return { - label: meta.label, - value: '(' + x + ', ' + y + (r ? ', ' + r : '') + ')' + static id = 'bubble'; + static defaults = { + datasetElementType: false, + dataElementType: 'point', + animations: { + numbers: { + type: 'number', + properties: [ + 'x', + 'y', + 'borderWidth', + 'radius' + ] + } + } }; - } - update(mode) { - const points = this._cachedMeta.data; - this.updateElements(points, 0, points.length, mode); - } - updateElements(points, start, count, mode) { - const reset = mode === 'reset'; - const {iScale, vScale} = this._cachedMeta; - const firstOpts = this.resolveDataElementOptions(start, mode); - const sharedOptions = this.getSharedOptions(firstOpts); - const includeOptions = this.includeOptions(mode, sharedOptions); - const iAxis = iScale.axis; - const vAxis = vScale.axis; - for (let i = start; i < start + count; i++) { - const point = points[i]; - const parsed = !reset && this.getParsed(i); - const properties = {}; - const iPixel = properties[iAxis] = reset ? iScale.getPixelForDecimal(0.5) : iScale.getPixelForValue(parsed[iAxis]); - const vPixel = properties[vAxis] = reset ? vScale.getBasePixel() : vScale.getPixelForValue(parsed[vAxis]); - properties.skip = isNaN(iPixel) || isNaN(vPixel); - if (includeOptions) { - properties.options = this.resolveDataElementOptions(i, point.active ? 'active' : mode); - if (reset) { - properties.options.radius = 0; + static overrides = { + scales: { + x: { + type: 'linear' + }, + y: { + type: 'linear' + } } - } - this.updateElement(point, i, properties, mode); + }; + initialize() { + this.enableOptionSharing = true; + super.initialize(); } - this.updateSharedOptions(sharedOptions, mode, firstOpts); - } - resolveDataElementOptions(index, mode) { - const parsed = this.getParsed(index); - let values = super.resolveDataElementOptions(index, mode); - if (values.$shared) { - values = Object.assign({}, values, {$shared: false}); + parsePrimitiveData(meta, data, start, count) { + const parsed = super.parsePrimitiveData(meta, data, start, count); + for(let i = 0; i < parsed.length; i++){ + parsed[i]._custom = this.resolveDataElementOptions(i + start).radius; + } + return parsed; } - const radius = values.radius; - if (mode !== 'active') { - values.radius = 0; + parseArrayData(meta, data, start, count) { + const parsed = super.parseArrayData(meta, data, start, count); + for(let i = 0; i < parsed.length; i++){ + const item = data[start + i]; + parsed[i]._custom = valueOrDefault(item[2], this.resolveDataElementOptions(i + start).radius); + } + return parsed; + } + parseObjectData(meta, data, start, count) { + const parsed = super.parseObjectData(meta, data, start, count); + for(let i = 0; i < parsed.length; i++){ + const item = data[start + i]; + parsed[i]._custom = valueOrDefault(item && item.r && +item.r, this.resolveDataElementOptions(i + start).radius); + } + return parsed; + } + getMaxOverflow() { + const data = this._cachedMeta.data; + let max = 0; + for(let i = data.length - 1; i >= 0; --i){ + max = Math.max(max, data[i].size(this.resolveDataElementOptions(i)) / 2); + } + return max > 0 && max; + } + getLabelAndValue(index) { + const meta = this._cachedMeta; + const labels = this.chart.data.labels || []; + const { xScale , yScale } = meta; + const parsed = this.getParsed(index); + const x = xScale.getLabelForValue(parsed.x); + const y = yScale.getLabelForValue(parsed.y); + const r = parsed._custom; + return { + label: labels[index] || '', + value: '(' + x + ', ' + y + (r ? ', ' + r : '') + ')' + }; + } + update(mode) { + const points = this._cachedMeta.data; + this.updateElements(points, 0, points.length, mode); + } + updateElements(points, start, count, mode) { + const reset = mode === 'reset'; + const { iScale , vScale } = this._cachedMeta; + const { sharedOptions , includeOptions } = this._getSharedOptions(start, mode); + const iAxis = iScale.axis; + const vAxis = vScale.axis; + for(let i = start; i < start + count; i++){ + const point = points[i]; + const parsed = !reset && this.getParsed(i); + const properties = {}; + const iPixel = properties[iAxis] = reset ? iScale.getPixelForDecimal(0.5) : iScale.getPixelForValue(parsed[iAxis]); + const vPixel = properties[vAxis] = reset ? vScale.getBasePixel() : vScale.getPixelForValue(parsed[vAxis]); + properties.skip = isNaN(iPixel) || isNaN(vPixel); + if (includeOptions) { + properties.options = sharedOptions || this.resolveDataElementOptions(i, point.active ? 'active' : mode); + if (reset) { + properties.options.radius = 0; + } + } + this.updateElement(point, i, properties, mode); + } + } + resolveDataElementOptions(index, mode) { + const parsed = this.getParsed(index); + let values = super.resolveDataElementOptions(index, mode); + if (values.$shared) { + values = Object.assign({}, values, { + $shared: false + }); + } + const radius = values.radius; + if (mode !== 'active') { + values.radius = 0; + } + values.radius += valueOrDefault(parsed && parsed._custom, radius); + return values; } - values.radius += valueOrDefault(parsed && parsed._custom, radius); - return values; - } } -BubbleController.id = 'bubble'; -BubbleController.defaults = { - datasetElementType: false, - dataElementType: 'point', - animations: { - numbers: { - type: 'number', - properties: ['x', 'y', 'borderWidth', 'radius'] - } - } -}; -BubbleController.overrides = { - scales: { - x: { - type: 'linear' - }, - y: { - type: 'linear' - } - }, - plugins: { - tooltip: { - callbacks: { - title() { - return ''; - } - } - } - } -}; function getRatioAndOffset(rotation, circumference, cutout) { - let ratioX = 1; - let ratioY = 1; - let offsetX = 0; - let offsetY = 0; - if (circumference < TAU) { - const startAngle = rotation; - const endAngle = startAngle + circumference; - const startX = Math.cos(startAngle); - const startY = Math.sin(startAngle); - const endX = Math.cos(endAngle); - const endY = Math.sin(endAngle); - const calcMax = (angle, a, b) => _angleBetween(angle, startAngle, endAngle, true) ? 1 : Math.max(a, a * cutout, b, b * cutout); - const calcMin = (angle, a, b) => _angleBetween(angle, startAngle, endAngle, true) ? -1 : Math.min(a, a * cutout, b, b * cutout); - const maxX = calcMax(0, startX, endX); - const maxY = calcMax(HALF_PI, startY, endY); - const minX = calcMin(PI, startX, endX); - const minY = calcMin(PI + HALF_PI, startY, endY); - ratioX = (maxX - minX) / 2; - ratioY = (maxY - minY) / 2; - offsetX = -(maxX + minX) / 2; - offsetY = -(maxY + minY) / 2; - } - return {ratioX, ratioY, offsetX, offsetY}; + let ratioX = 1; + let ratioY = 1; + let offsetX = 0; + let offsetY = 0; + if (circumference < TAU) { + const startAngle = rotation; + const endAngle = startAngle + circumference; + const startX = Math.cos(startAngle); + const startY = Math.sin(startAngle); + const endX = Math.cos(endAngle); + const endY = Math.sin(endAngle); + const calcMax = (angle, a, b)=>_angleBetween(angle, startAngle, endAngle, true) ? 1 : Math.max(a, a * cutout, b, b * cutout); + const calcMin = (angle, a, b)=>_angleBetween(angle, startAngle, endAngle, true) ? -1 : Math.min(a, a * cutout, b, b * cutout); + const maxX = calcMax(0, startX, endX); + const maxY = calcMax(HALF_PI, startY, endY); + const minX = calcMin(PI, startX, endX); + const minY = calcMin(PI + HALF_PI, startY, endY); + ratioX = (maxX - minX) / 2; + ratioY = (maxY - minY) / 2; + offsetX = -(maxX + minX) / 2; + offsetY = -(maxY + minY) / 2; + } + return { + ratioX, + ratioY, + offsetX, + offsetY + }; } class DoughnutController extends DatasetController { - constructor(chart, datasetIndex) { - super(chart, datasetIndex); - this.enableOptionSharing = true; - this.innerRadius = undefined; - this.outerRadius = undefined; - this.offsetX = undefined; - this.offsetY = undefined; - } - linkScales() {} - parse(start, count) { - const data = this.getDataset().data; - const meta = this._cachedMeta; - if (this._parsing === false) { - meta._parsed = data; - } else { - let getter = (i) => +data[i]; - if (isObject(data[start])) { - const {key = 'value'} = this._parsing; - getter = (i) => +resolveObjectKey(data[i], key); - } - let i, ilen; - for (i = start, ilen = start + count; i < ilen; ++i) { - meta._parsed[i] = getter(i); - } - } - } - _getRotation() { - return toRadians(this.options.rotation - 90); - } - _getCircumference() { - return toRadians(this.options.circumference); - } - _getRotationExtents() { - let min = TAU; - let max = -TAU; - for (let i = 0; i < this.chart.data.datasets.length; ++i) { - if (this.chart.isDatasetVisible(i)) { - const controller = this.chart.getDatasetMeta(i).controller; - const rotation = controller._getRotation(); - const circumference = controller._getCircumference(); - min = Math.min(min, rotation); - max = Math.max(max, rotation + circumference); - } - } - return { - rotation: min, - circumference: max - min, - }; - } - update(mode) { - const chart = this.chart; - const {chartArea} = chart; - const meta = this._cachedMeta; - const arcs = meta.data; - const spacing = this.getMaxBorderWidth() + this.getMaxOffset(arcs) + this.options.spacing; - const maxSize = Math.max((Math.min(chartArea.width, chartArea.height) - spacing) / 2, 0); - const cutout = Math.min(toPercentage(this.options.cutout, maxSize), 1); - const chartWeight = this._getRingWeight(this.index); - const {circumference, rotation} = this._getRotationExtents(); - const {ratioX, ratioY, offsetX, offsetY} = getRatioAndOffset(rotation, circumference, cutout); - const maxWidth = (chartArea.width - spacing) / ratioX; - const maxHeight = (chartArea.height - spacing) / ratioY; - const maxRadius = Math.max(Math.min(maxWidth, maxHeight) / 2, 0); - const outerRadius = toDimension(this.options.radius, maxRadius); - const innerRadius = Math.max(outerRadius * cutout, 0); - const radiusLength = (outerRadius - innerRadius) / this._getVisibleDatasetWeightTotal(); - this.offsetX = offsetX * outerRadius; - this.offsetY = offsetY * outerRadius; - meta.total = this.calculateTotal(); - this.outerRadius = outerRadius - radiusLength * this._getRingWeightOffset(this.index); - this.innerRadius = Math.max(this.outerRadius - radiusLength * chartWeight, 0); - this.updateElements(arcs, 0, arcs.length, mode); - } - _circumference(i, reset) { - const opts = this.options; - const meta = this._cachedMeta; - const circumference = this._getCircumference(); - if ((reset && opts.animation.animateRotate) || !this.chart.getDataVisibility(i) || meta._parsed[i] === null || meta.data[i].hidden) { - return 0; - } - return this.calculateCircumference(meta._parsed[i] * circumference / TAU); - } - updateElements(arcs, start, count, mode) { - const reset = mode === 'reset'; - const chart = this.chart; - const chartArea = chart.chartArea; - const opts = chart.options; - const animationOpts = opts.animation; - const centerX = (chartArea.left + chartArea.right) / 2; - const centerY = (chartArea.top + chartArea.bottom) / 2; - const animateScale = reset && animationOpts.animateScale; - const innerRadius = animateScale ? 0 : this.innerRadius; - const outerRadius = animateScale ? 0 : this.outerRadius; - const firstOpts = this.resolveDataElementOptions(start, mode); - const sharedOptions = this.getSharedOptions(firstOpts); - const includeOptions = this.includeOptions(mode, sharedOptions); - let startAngle = this._getRotation(); - let i; - for (i = 0; i < start; ++i) { - startAngle += this._circumference(i, reset); - } - for (i = start; i < start + count; ++i) { - const circumference = this._circumference(i, reset); - const arc = arcs[i]; - const properties = { - x: centerX + this.offsetX, - y: centerY + this.offsetY, - startAngle, - endAngle: startAngle + circumference, - circumference, - outerRadius, - innerRadius - }; - if (includeOptions) { - properties.options = sharedOptions || this.resolveDataElementOptions(i, arc.active ? 'active' : mode); - } - startAngle += circumference; - this.updateElement(arc, i, properties, mode); - } - this.updateSharedOptions(sharedOptions, mode, firstOpts); - } - calculateTotal() { - const meta = this._cachedMeta; - const metaData = meta.data; - let total = 0; - let i; - for (i = 0; i < metaData.length; i++) { - const value = meta._parsed[i]; - if (value !== null && !isNaN(value) && this.chart.getDataVisibility(i) && !metaData[i].hidden) { - total += Math.abs(value); - } - } - return total; - } - calculateCircumference(value) { - const total = this._cachedMeta.total; - if (total > 0 && !isNaN(value)) { - return TAU * (Math.abs(value) / total); - } - return 0; - } - getLabelAndValue(index) { - const meta = this._cachedMeta; - const chart = this.chart; - const labels = chart.data.labels || []; - const value = formatNumber(meta._parsed[index], chart.options.locale); - return { - label: labels[index] || '', - value, - }; - } - getMaxBorderWidth(arcs) { - let max = 0; - const chart = this.chart; - let i, ilen, meta, controller, options; - if (!arcs) { - for (i = 0, ilen = chart.data.datasets.length; i < ilen; ++i) { - if (chart.isDatasetVisible(i)) { - meta = chart.getDatasetMeta(i); - arcs = meta.data; - controller = meta.controller; - break; - } - } - } - if (!arcs) { - return 0; - } - for (i = 0, ilen = arcs.length; i < ilen; ++i) { - options = controller.resolveDataElementOptions(i); - if (options.borderAlign !== 'inner') { - max = Math.max(max, options.borderWidth || 0, options.hoverBorderWidth || 0); - } - } - return max; - } - getMaxOffset(arcs) { - let max = 0; - for (let i = 0, ilen = arcs.length; i < ilen; ++i) { - const options = this.resolveDataElementOptions(i); - max = Math.max(max, options.offset || 0, options.hoverOffset || 0); - } - return max; - } - _getRingWeightOffset(datasetIndex) { - let ringWeightOffset = 0; - for (let i = 0; i < datasetIndex; ++i) { - if (this.chart.isDatasetVisible(i)) { - ringWeightOffset += this._getRingWeight(i); - } - } - return ringWeightOffset; - } - _getRingWeight(datasetIndex) { - return Math.max(valueOrDefault(this.chart.data.datasets[datasetIndex].weight, 1), 0); - } - _getVisibleDatasetWeightTotal() { - return this._getRingWeightOffset(this.chart.data.datasets.length) || 1; - } -} -DoughnutController.id = 'doughnut'; -DoughnutController.defaults = { - datasetElementType: false, - dataElementType: 'arc', - animation: { - animateRotate: true, - animateScale: false - }, - animations: { - numbers: { - type: 'number', - properties: ['circumference', 'endAngle', 'innerRadius', 'outerRadius', 'startAngle', 'x', 'y', 'offset', 'borderWidth', 'spacing'] - }, - }, - cutout: '50%', - rotation: 0, - circumference: 360, - radius: '100%', - spacing: 0, - indexAxis: 'r', -}; -DoughnutController.descriptors = { - _scriptable: (name) => name !== 'spacing', - _indexable: (name) => name !== 'spacing', -}; -DoughnutController.overrides = { - aspectRatio: 1, - plugins: { - legend: { - labels: { - generateLabels(chart) { - const data = chart.data; - if (data.labels.length && data.datasets.length) { - const {labels: {pointStyle}} = chart.legend.options; - return data.labels.map((label, i) => { - const meta = chart.getDatasetMeta(0); - const style = meta.controller.getStyle(i); - return { - text: label, - fillStyle: style.backgroundColor, - strokeStyle: style.borderColor, - lineWidth: style.borderWidth, - pointStyle: pointStyle, - hidden: !chart.getDataVisibility(i), - index: i - }; - }); - } - return []; - } - }, - onClick(e, legendItem, legend) { - legend.chart.toggleDataVisibility(legendItem.index); - legend.chart.update(); - } - }, - tooltip: { - callbacks: { - title() { - return ''; + static id = 'doughnut'; + static defaults = { + datasetElementType: false, + dataElementType: 'arc', + animation: { + animateRotate: true, + animateScale: false }, - label(tooltipItem) { - let dataLabel = tooltipItem.label; - const value = ': ' + tooltipItem.formattedValue; - if (isArray(dataLabel)) { - dataLabel = dataLabel.slice(); - dataLabel[0] += value; - } else { - dataLabel += value; - } - return dataLabel; + animations: { + numbers: { + type: 'number', + properties: [ + 'circumference', + 'endAngle', + 'innerRadius', + 'outerRadius', + 'startAngle', + 'x', + 'y', + 'offset', + 'borderWidth', + 'spacing' + ] + } + }, + cutout: '50%', + rotation: 0, + circumference: 360, + radius: '100%', + spacing: 0, + indexAxis: 'r' + }; + static descriptors = { + _scriptable: (name)=>name !== 'spacing', + _indexable: (name)=>name !== 'spacing' + }; + static overrides = { + aspectRatio: 1, + plugins: { + legend: { + labels: { + generateLabels (chart) { + const data = chart.data; + if (data.labels.length && data.datasets.length) { + const { labels: { pointStyle , color } } = chart.legend.options; + return data.labels.map((label, i)=>{ + const meta = chart.getDatasetMeta(0); + const style = meta.controller.getStyle(i); + return { + text: label, + fillStyle: style.backgroundColor, + strokeStyle: style.borderColor, + fontColor: color, + lineWidth: style.borderWidth, + pointStyle: pointStyle, + hidden: !chart.getDataVisibility(i), + index: i + }; + }); + } + return []; + } + }, + onClick (e, legendItem, legend) { + legend.chart.toggleDataVisibility(legendItem.index); + legend.chart.update(); + } + } } - } + }; + constructor(chart, datasetIndex){ + super(chart, datasetIndex); + this.enableOptionSharing = true; + this.innerRadius = undefined; + this.outerRadius = undefined; + this.offsetX = undefined; + this.offsetY = undefined; } - } -}; + linkScales() {} + parse(start, count) { + const data = this.getDataset().data; + const meta = this._cachedMeta; + if (this._parsing === false) { + meta._parsed = data; + } else { + let getter = (i)=>+data[i]; + if (isObject(data[start])) { + const { key ='value' } = this._parsing; + getter = (i)=>+resolveObjectKey(data[i], key); + } + let i, ilen; + for(i = start, ilen = start + count; i < ilen; ++i){ + meta._parsed[i] = getter(i); + } + } + } + _getRotation() { + return toRadians(this.options.rotation - 90); + } + _getCircumference() { + return toRadians(this.options.circumference); + } + _getRotationExtents() { + let min = TAU; + let max = -TAU; + for(let i = 0; i < this.chart.data.datasets.length; ++i){ + if (this.chart.isDatasetVisible(i) && this.chart.getDatasetMeta(i).type === this._type) { + const controller = this.chart.getDatasetMeta(i).controller; + const rotation = controller._getRotation(); + const circumference = controller._getCircumference(); + min = Math.min(min, rotation); + max = Math.max(max, rotation + circumference); + } + } + return { + rotation: min, + circumference: max - min + }; + } + update(mode) { + const chart = this.chart; + const { chartArea } = chart; + const meta = this._cachedMeta; + const arcs = meta.data; + const spacing = this.getMaxBorderWidth() + this.getMaxOffset(arcs) + this.options.spacing; + const maxSize = Math.max((Math.min(chartArea.width, chartArea.height) - spacing) / 2, 0); + const cutout = Math.min(toPercentage(this.options.cutout, maxSize), 1); + const chartWeight = this._getRingWeight(this.index); + const { circumference , rotation } = this._getRotationExtents(); + const { ratioX , ratioY , offsetX , offsetY } = getRatioAndOffset(rotation, circumference, cutout); + const maxWidth = (chartArea.width - spacing) / ratioX; + const maxHeight = (chartArea.height - spacing) / ratioY; + const maxRadius = Math.max(Math.min(maxWidth, maxHeight) / 2, 0); + const outerRadius = toDimension(this.options.radius, maxRadius); + const innerRadius = Math.max(outerRadius * cutout, 0); + const radiusLength = (outerRadius - innerRadius) / this._getVisibleDatasetWeightTotal(); + this.offsetX = offsetX * outerRadius; + this.offsetY = offsetY * outerRadius; + meta.total = this.calculateTotal(); + this.outerRadius = outerRadius - radiusLength * this._getRingWeightOffset(this.index); + this.innerRadius = Math.max(this.outerRadius - radiusLength * chartWeight, 0); + this.updateElements(arcs, 0, arcs.length, mode); + } + _circumference(i, reset) { + const opts = this.options; + const meta = this._cachedMeta; + const circumference = this._getCircumference(); + if (reset && opts.animation.animateRotate || !this.chart.getDataVisibility(i) || meta._parsed[i] === null || meta.data[i].hidden) { + return 0; + } + return this.calculateCircumference(meta._parsed[i] * circumference / TAU); + } + updateElements(arcs, start, count, mode) { + const reset = mode === 'reset'; + const chart = this.chart; + const chartArea = chart.chartArea; + const opts = chart.options; + const animationOpts = opts.animation; + const centerX = (chartArea.left + chartArea.right) / 2; + const centerY = (chartArea.top + chartArea.bottom) / 2; + const animateScale = reset && animationOpts.animateScale; + const innerRadius = animateScale ? 0 : this.innerRadius; + const outerRadius = animateScale ? 0 : this.outerRadius; + const { sharedOptions , includeOptions } = this._getSharedOptions(start, mode); + let startAngle = this._getRotation(); + let i; + for(i = 0; i < start; ++i){ + startAngle += this._circumference(i, reset); + } + for(i = start; i < start + count; ++i){ + const circumference = this._circumference(i, reset); + const arc = arcs[i]; + const properties = { + x: centerX + this.offsetX, + y: centerY + this.offsetY, + startAngle, + endAngle: startAngle + circumference, + circumference, + outerRadius, + innerRadius + }; + if (includeOptions) { + properties.options = sharedOptions || this.resolveDataElementOptions(i, arc.active ? 'active' : mode); + } + startAngle += circumference; + this.updateElement(arc, i, properties, mode); + } + } + calculateTotal() { + const meta = this._cachedMeta; + const metaData = meta.data; + let total = 0; + let i; + for(i = 0; i < metaData.length; i++){ + const value = meta._parsed[i]; + if (value !== null && !isNaN(value) && this.chart.getDataVisibility(i) && !metaData[i].hidden) { + total += Math.abs(value); + } + } + return total; + } + calculateCircumference(value) { + const total = this._cachedMeta.total; + if (total > 0 && !isNaN(value)) { + return TAU * (Math.abs(value) / total); + } + return 0; + } + getLabelAndValue(index) { + const meta = this._cachedMeta; + const chart = this.chart; + const labels = chart.data.labels || []; + const value = formatNumber(meta._parsed[index], chart.options.locale); + return { + label: labels[index] || '', + value + }; + } + getMaxBorderWidth(arcs) { + let max = 0; + const chart = this.chart; + let i, ilen, meta, controller, options; + if (!arcs) { + for(i = 0, ilen = chart.data.datasets.length; i < ilen; ++i){ + if (chart.isDatasetVisible(i)) { + meta = chart.getDatasetMeta(i); + arcs = meta.data; + controller = meta.controller; + break; + } + } + } + if (!arcs) { + return 0; + } + for(i = 0, ilen = arcs.length; i < ilen; ++i){ + options = controller.resolveDataElementOptions(i); + if (options.borderAlign !== 'inner') { + max = Math.max(max, options.borderWidth || 0, options.hoverBorderWidth || 0); + } + } + return max; + } + getMaxOffset(arcs) { + let max = 0; + for(let i = 0, ilen = arcs.length; i < ilen; ++i){ + const options = this.resolveDataElementOptions(i); + max = Math.max(max, options.offset || 0, options.hoverOffset || 0); + } + return max; + } + _getRingWeightOffset(datasetIndex) { + let ringWeightOffset = 0; + for(let i = 0; i < datasetIndex; ++i){ + if (this.chart.isDatasetVisible(i)) { + ringWeightOffset += this._getRingWeight(i); + } + } + return ringWeightOffset; + } + _getRingWeight(datasetIndex) { + return Math.max(valueOrDefault(this.chart.data.datasets[datasetIndex].weight, 1), 0); + } + _getVisibleDatasetWeightTotal() { + return this._getRingWeightOffset(this.chart.data.datasets.length) || 1; + } +} class LineController extends DatasetController { - initialize() { - this.enableOptionSharing = true; - this.supportsDecimation = true; - super.initialize(); - } - update(mode) { - const meta = this._cachedMeta; - const {dataset: line, data: points = [], _dataset} = meta; - const animationsDisabled = this.chart._animationsDisabled; - let {start, count} = getStartAndCountOfVisiblePoints(meta, points, animationsDisabled); - this._drawStart = start; - this._drawCount = count; - if (scaleRangesChanged(meta)) { - start = 0; - count = points.length; + static id = 'line'; + static defaults = { + datasetElementType: 'line', + dataElementType: 'point', + showLine: true, + spanGaps: false + }; + static overrides = { + scales: { + _index_: { + type: 'category' + }, + _value_: { + type: 'linear' + } + } + }; + initialize() { + this.enableOptionSharing = true; + this.supportsDecimation = true; + super.initialize(); } - line._chart = this.chart; - line._datasetIndex = this.index; - line._decimated = !!_dataset._decimated; - line.points = points; - const options = this.resolveDatasetElementOptions(mode); - if (!this.options.showLine) { - options.borderWidth = 0; + update(mode) { + const meta = this._cachedMeta; + const { dataset: line , data: points = [] , _dataset } = meta; + const animationsDisabled = this.chart._animationsDisabled; + let { start , count } = _getStartAndCountOfVisiblePoints(meta, points, animationsDisabled); + this._drawStart = start; + this._drawCount = count; + if (_scaleRangesChanged(meta)) { + start = 0; + count = points.length; + } + line._chart = this.chart; + line._datasetIndex = this.index; + line._decimated = !!_dataset._decimated; + line.points = points; + const options = this.resolveDatasetElementOptions(mode); + if (!this.options.showLine) { + options.borderWidth = 0; + } + options.segment = this.options.segment; + this.updateElement(line, undefined, { + animated: !animationsDisabled, + options + }, mode); + this.updateElements(points, start, count, mode); } - options.segment = this.options.segment; - this.updateElement(line, undefined, { - animated: !animationsDisabled, - options - }, mode); - this.updateElements(points, start, count, mode); - } - updateElements(points, start, count, mode) { - const reset = mode === 'reset'; - const {iScale, vScale, _stacked, _dataset} = this._cachedMeta; - const firstOpts = this.resolveDataElementOptions(start, mode); - const sharedOptions = this.getSharedOptions(firstOpts); - const includeOptions = this.includeOptions(mode, sharedOptions); - const iAxis = iScale.axis; - const vAxis = vScale.axis; - const {spanGaps, segment} = this.options; - const maxGapLength = isNumber(spanGaps) ? spanGaps : Number.POSITIVE_INFINITY; - const directUpdate = this.chart._animationsDisabled || reset || mode === 'none'; - let prevParsed = start > 0 && this.getParsed(start - 1); - for (let i = start; i < start + count; ++i) { - const point = points[i]; - const parsed = this.getParsed(i); - const properties = directUpdate ? point : {}; - const nullData = isNullOrUndef(parsed[vAxis]); - const iPixel = properties[iAxis] = iScale.getPixelForValue(parsed[iAxis], i); - const vPixel = properties[vAxis] = reset || nullData ? vScale.getBasePixel() : vScale.getPixelForValue(_stacked ? this.applyStack(vScale, parsed, _stacked) : parsed[vAxis], i); - properties.skip = isNaN(iPixel) || isNaN(vPixel) || nullData; - properties.stop = i > 0 && (Math.abs(parsed[iAxis] - prevParsed[iAxis])) > maxGapLength; - if (segment) { - properties.parsed = parsed; - properties.raw = _dataset.data[i]; - } - if (includeOptions) { - properties.options = sharedOptions || this.resolveDataElementOptions(i, point.active ? 'active' : mode); - } - if (!directUpdate) { - this.updateElement(point, i, properties, mode); - } - prevParsed = parsed; + updateElements(points, start, count, mode) { + const reset = mode === 'reset'; + const { iScale , vScale , _stacked , _dataset } = this._cachedMeta; + const { sharedOptions , includeOptions } = this._getSharedOptions(start, mode); + const iAxis = iScale.axis; + const vAxis = vScale.axis; + const { spanGaps , segment } = this.options; + const maxGapLength = isNumber(spanGaps) ? spanGaps : Number.POSITIVE_INFINITY; + const directUpdate = this.chart._animationsDisabled || reset || mode === 'none'; + const end = start + count; + const pointsCount = points.length; + let prevParsed = start > 0 && this.getParsed(start - 1); + for(let i = 0; i < pointsCount; ++i){ + const point = points[i]; + const properties = directUpdate ? point : {}; + if (i < start || i >= end) { + properties.skip = true; + continue; + } + const parsed = this.getParsed(i); + const nullData = isNullOrUndef(parsed[vAxis]); + const iPixel = properties[iAxis] = iScale.getPixelForValue(parsed[iAxis], i); + const vPixel = properties[vAxis] = reset || nullData ? vScale.getBasePixel() : vScale.getPixelForValue(_stacked ? this.applyStack(vScale, parsed, _stacked) : parsed[vAxis], i); + properties.skip = isNaN(iPixel) || isNaN(vPixel) || nullData; + properties.stop = i > 0 && Math.abs(parsed[iAxis] - prevParsed[iAxis]) > maxGapLength; + if (segment) { + properties.parsed = parsed; + properties.raw = _dataset.data[i]; + } + if (includeOptions) { + properties.options = sharedOptions || this.resolveDataElementOptions(i, point.active ? 'active' : mode); + } + if (!directUpdate) { + this.updateElement(point, i, properties, mode); + } + prevParsed = parsed; + } } - this.updateSharedOptions(sharedOptions, mode, firstOpts); - } - getMaxOverflow() { - const meta = this._cachedMeta; - const dataset = meta.dataset; - const border = dataset.options && dataset.options.borderWidth || 0; - const data = meta.data || []; - if (!data.length) { - return border; + getMaxOverflow() { + const meta = this._cachedMeta; + const dataset = meta.dataset; + const border = dataset.options && dataset.options.borderWidth || 0; + const data = meta.data || []; + if (!data.length) { + return border; + } + const firstPoint = data[0].size(this.resolveDataElementOptions(0)); + const lastPoint = data[data.length - 1].size(this.resolveDataElementOptions(data.length - 1)); + return Math.max(border, firstPoint, lastPoint) / 2; } - const firstPoint = data[0].size(this.resolveDataElementOptions(0)); - const lastPoint = data[data.length - 1].size(this.resolveDataElementOptions(data.length - 1)); - return Math.max(border, firstPoint, lastPoint) / 2; - } - draw() { - const meta = this._cachedMeta; - meta.dataset.updateControlPoints(this.chart.chartArea, meta.iScale.axis); - super.draw(); - } -} -LineController.id = 'line'; -LineController.defaults = { - datasetElementType: 'line', - dataElementType: 'point', - showLine: true, - spanGaps: false, -}; -LineController.overrides = { - scales: { - _index_: { - type: 'category', - }, - _value_: { - type: 'linear', - }, - } -}; -function getStartAndCountOfVisiblePoints(meta, points, animationsDisabled) { - const pointCount = points.length; - let start = 0; - let count = pointCount; - if (meta._sorted) { - const {iScale, _parsed} = meta; - const axis = iScale.axis; - const {min, max, minDefined, maxDefined} = iScale.getUserBounds(); - if (minDefined) { - start = _limitValue(Math.min( - _lookupByKey(_parsed, iScale.axis, min).lo, - animationsDisabled ? pointCount : _lookupByKey(points, axis, iScale.getPixelForValue(min)).lo), - 0, pointCount - 1); + draw() { + const meta = this._cachedMeta; + meta.dataset.updateControlPoints(this.chart.chartArea, meta.iScale.axis); + super.draw(); } - if (maxDefined) { - count = _limitValue(Math.max( - _lookupByKey(_parsed, iScale.axis, max).hi + 1, - animationsDisabled ? 0 : _lookupByKey(points, axis, iScale.getPixelForValue(max)).hi + 1), - start, pointCount) - start; - } else { - count = pointCount - start; - } - } - return {start, count}; -} -function scaleRangesChanged(meta) { - const {xScale, yScale, _scaleRanges} = meta; - const newRanges = { - xmin: xScale.min, - xmax: xScale.max, - ymin: yScale.min, - ymax: yScale.max - }; - if (!_scaleRanges) { - meta._scaleRanges = newRanges; - return true; - } - const changed = _scaleRanges.xmin !== xScale.min - || _scaleRanges.xmax !== xScale.max - || _scaleRanges.ymin !== yScale.min - || _scaleRanges.ymax !== yScale.max; - Object.assign(_scaleRanges, newRanges); - return changed; } class PolarAreaController extends DatasetController { - constructor(chart, datasetIndex) { - super(chart, datasetIndex); - this.innerRadius = undefined; - this.outerRadius = undefined; - } - getLabelAndValue(index) { - const meta = this._cachedMeta; - const chart = this.chart; - const labels = chart.data.labels || []; - const value = formatNumber(meta._parsed[index].r, chart.options.locale); - return { - label: labels[index] || '', - value, - }; - } - parseObjectData(meta, data, start, count) { - return _parseObjectDataRadialScale.bind(this)(meta, data, start, count); - } - update(mode) { - const arcs = this._cachedMeta.data; - this._updateRadius(); - this.updateElements(arcs, 0, arcs.length, mode); - } - getMinMax() { - const meta = this._cachedMeta; - const range = {min: Number.POSITIVE_INFINITY, max: Number.NEGATIVE_INFINITY}; - meta.data.forEach((element, index) => { - const parsed = this.getParsed(index).r; - if (!isNaN(parsed) && this.chart.getDataVisibility(index)) { - if (parsed < range.min) { - range.min = parsed; - } - if (parsed > range.max) { - range.max = parsed; - } - } - }); - return range; - } - _updateRadius() { - const chart = this.chart; - const chartArea = chart.chartArea; - const opts = chart.options; - const minSize = Math.min(chartArea.right - chartArea.left, chartArea.bottom - chartArea.top); - const outerRadius = Math.max(minSize / 2, 0); - const innerRadius = Math.max(opts.cutoutPercentage ? (outerRadius / 100) * (opts.cutoutPercentage) : 1, 0); - const radiusLength = (outerRadius - innerRadius) / chart.getVisibleDatasetCount(); - this.outerRadius = outerRadius - (radiusLength * this.index); - this.innerRadius = this.outerRadius - radiusLength; - } - updateElements(arcs, start, count, mode) { - const reset = mode === 'reset'; - const chart = this.chart; - const opts = chart.options; - const animationOpts = opts.animation; - const scale = this._cachedMeta.rScale; - const centerX = scale.xCenter; - const centerY = scale.yCenter; - const datasetStartAngle = scale.getIndexAngle(0) - 0.5 * PI; - let angle = datasetStartAngle; - let i; - const defaultAngle = 360 / this.countVisibleElements(); - for (i = 0; i < start; ++i) { - angle += this._computeAngle(i, mode, defaultAngle); - } - for (i = start; i < start + count; i++) { - const arc = arcs[i]; - let startAngle = angle; - let endAngle = angle + this._computeAngle(i, mode, defaultAngle); - let outerRadius = chart.getDataVisibility(i) ? scale.getDistanceFromCenterForValue(this.getParsed(i).r) : 0; - angle = endAngle; - if (reset) { - if (animationOpts.animateScale) { - outerRadius = 0; - } - if (animationOpts.animateRotate) { - startAngle = endAngle = datasetStartAngle; - } - } - const properties = { - x: centerX, - y: centerY, - innerRadius: 0, - outerRadius, - startAngle, - endAngle, - options: this.resolveDataElementOptions(i, arc.active ? 'active' : mode) - }; - this.updateElement(arc, i, properties, mode); - } - } - countVisibleElements() { - const meta = this._cachedMeta; - let count = 0; - meta.data.forEach((element, index) => { - if (!isNaN(this.getParsed(index).r) && this.chart.getDataVisibility(index)) { - count++; - } - }); - return count; - } - _computeAngle(index, mode, defaultAngle) { - return this.chart.getDataVisibility(index) - ? toRadians(this.resolveDataElementOptions(index, mode).angle || defaultAngle) - : 0; - } -} -PolarAreaController.id = 'polarArea'; -PolarAreaController.defaults = { - dataElementType: 'arc', - animation: { - animateRotate: true, - animateScale: true - }, - animations: { - numbers: { - type: 'number', - properties: ['x', 'y', 'startAngle', 'endAngle', 'innerRadius', 'outerRadius'] - }, - }, - indexAxis: 'r', - startAngle: 0, -}; -PolarAreaController.overrides = { - aspectRatio: 1, - plugins: { - legend: { - labels: { - generateLabels(chart) { - const data = chart.data; - if (data.labels.length && data.datasets.length) { - const {labels: {pointStyle}} = chart.legend.options; - return data.labels.map((label, i) => { - const meta = chart.getDatasetMeta(0); - const style = meta.controller.getStyle(i); - return { - text: label, - fillStyle: style.backgroundColor, - strokeStyle: style.borderColor, - lineWidth: style.borderWidth, - pointStyle: pointStyle, - hidden: !chart.getDataVisibility(i), - index: i - }; - }); - } - return []; - } - }, - onClick(e, legendItem, legend) { - legend.chart.toggleDataVisibility(legendItem.index); - legend.chart.update(); - } - }, - tooltip: { - callbacks: { - title() { - return ''; + static id = 'polarArea'; + static defaults = { + dataElementType: 'arc', + animation: { + animateRotate: true, + animateScale: true }, - label(context) { - return context.chart.data.labels[context.dataIndex] + ': ' + context.formattedValue; + animations: { + numbers: { + type: 'number', + properties: [ + 'x', + 'y', + 'startAngle', + 'endAngle', + 'innerRadius', + 'outerRadius' + ] + } + }, + indexAxis: 'r', + startAngle: 0 + }; + static overrides = { + aspectRatio: 1, + plugins: { + legend: { + labels: { + generateLabels (chart) { + const data = chart.data; + if (data.labels.length && data.datasets.length) { + const { labels: { pointStyle , color } } = chart.legend.options; + return data.labels.map((label, i)=>{ + const meta = chart.getDatasetMeta(0); + const style = meta.controller.getStyle(i); + return { + text: label, + fillStyle: style.backgroundColor, + strokeStyle: style.borderColor, + fontColor: color, + lineWidth: style.borderWidth, + pointStyle: pointStyle, + hidden: !chart.getDataVisibility(i), + index: i + }; + }); + } + return []; + } + }, + onClick (e, legendItem, legend) { + legend.chart.toggleDataVisibility(legendItem.index); + legend.chart.update(); + } + } + }, + scales: { + r: { + type: 'radialLinear', + angleLines: { + display: false + }, + beginAtZero: true, + grid: { + circular: true + }, + pointLabels: { + display: false + }, + startAngle: 0 + } } - } + }; + constructor(chart, datasetIndex){ + super(chart, datasetIndex); + this.innerRadius = undefined; + this.outerRadius = undefined; } - }, - scales: { - r: { - type: 'radialLinear', - angleLines: { - display: false - }, - beginAtZero: true, - grid: { - circular: true - }, - pointLabels: { - display: false - }, - startAngle: 0 + getLabelAndValue(index) { + const meta = this._cachedMeta; + const chart = this.chart; + const labels = chart.data.labels || []; + const value = formatNumber(meta._parsed[index].r, chart.options.locale); + return { + label: labels[index] || '', + value + }; } - } -}; + parseObjectData(meta, data, start, count) { + return _parseObjectDataRadialScale.bind(this)(meta, data, start, count); + } + update(mode) { + const arcs = this._cachedMeta.data; + this._updateRadius(); + this.updateElements(arcs, 0, arcs.length, mode); + } + getMinMax() { + const meta = this._cachedMeta; + const range = { + min: Number.POSITIVE_INFINITY, + max: Number.NEGATIVE_INFINITY + }; + meta.data.forEach((element, index)=>{ + const parsed = this.getParsed(index).r; + if (!isNaN(parsed) && this.chart.getDataVisibility(index)) { + if (parsed < range.min) { + range.min = parsed; + } + if (parsed > range.max) { + range.max = parsed; + } + } + }); + return range; + } + _updateRadius() { + const chart = this.chart; + const chartArea = chart.chartArea; + const opts = chart.options; + const minSize = Math.min(chartArea.right - chartArea.left, chartArea.bottom - chartArea.top); + const outerRadius = Math.max(minSize / 2, 0); + const innerRadius = Math.max(opts.cutoutPercentage ? outerRadius / 100 * opts.cutoutPercentage : 1, 0); + const radiusLength = (outerRadius - innerRadius) / chart.getVisibleDatasetCount(); + this.outerRadius = outerRadius - radiusLength * this.index; + this.innerRadius = this.outerRadius - radiusLength; + } + updateElements(arcs, start, count, mode) { + const reset = mode === 'reset'; + const chart = this.chart; + const opts = chart.options; + const animationOpts = opts.animation; + const scale = this._cachedMeta.rScale; + const centerX = scale.xCenter; + const centerY = scale.yCenter; + const datasetStartAngle = scale.getIndexAngle(0) - 0.5 * PI; + let angle = datasetStartAngle; + let i; + const defaultAngle = 360 / this.countVisibleElements(); + for(i = 0; i < start; ++i){ + angle += this._computeAngle(i, mode, defaultAngle); + } + for(i = start; i < start + count; i++){ + const arc = arcs[i]; + let startAngle = angle; + let endAngle = angle + this._computeAngle(i, mode, defaultAngle); + let outerRadius = chart.getDataVisibility(i) ? scale.getDistanceFromCenterForValue(this.getParsed(i).r) : 0; + angle = endAngle; + if (reset) { + if (animationOpts.animateScale) { + outerRadius = 0; + } + if (animationOpts.animateRotate) { + startAngle = endAngle = datasetStartAngle; + } + } + const properties = { + x: centerX, + y: centerY, + innerRadius: 0, + outerRadius, + startAngle, + endAngle, + options: this.resolveDataElementOptions(i, arc.active ? 'active' : mode) + }; + this.updateElement(arc, i, properties, mode); + } + } + countVisibleElements() { + const meta = this._cachedMeta; + let count = 0; + meta.data.forEach((element, index)=>{ + if (!isNaN(this.getParsed(index).r) && this.chart.getDataVisibility(index)) { + count++; + } + }); + return count; + } + _computeAngle(index, mode, defaultAngle) { + return this.chart.getDataVisibility(index) ? toRadians(this.resolveDataElementOptions(index, mode).angle || defaultAngle) : 0; + } +} class PieController extends DoughnutController { + static id = 'pie'; + static defaults = { + cutout: 0, + rotation: 0, + circumference: 360, + radius: '100%' + }; } -PieController.id = 'pie'; -PieController.defaults = { - cutout: 0, - rotation: 0, - circumference: 360, - radius: '100%' -}; class RadarController extends DatasetController { - getLabelAndValue(index) { - const vScale = this._cachedMeta.vScale; - const parsed = this.getParsed(index); - return { - label: vScale.getLabels()[index], - value: '' + vScale.getLabelForValue(parsed[vScale.axis]) - }; - } - parseObjectData(meta, data, start, count) { - return _parseObjectDataRadialScale.bind(this)(meta, data, start, count); - } - update(mode) { - const meta = this._cachedMeta; - const line = meta.dataset; - const points = meta.data || []; - const labels = meta.iScale.getLabels(); - line.points = points; - if (mode !== 'resize') { - const options = this.resolveDatasetElementOptions(mode); - if (!this.options.showLine) { - options.borderWidth = 0; - } - const properties = { - _loop: true, - _fullLoop: labels.length === points.length, - options - }; - this.updateElement(line, undefined, properties, mode); - } - this.updateElements(points, 0, points.length, mode); - } - updateElements(points, start, count, mode) { - const scale = this._cachedMeta.rScale; - const reset = mode === 'reset'; - for (let i = start; i < start + count; i++) { - const point = points[i]; - const options = this.resolveDataElementOptions(i, point.active ? 'active' : mode); - const pointPosition = scale.getPointPositionForValue(i, this.getParsed(i).r); - const x = reset ? scale.xCenter : pointPosition.x; - const y = reset ? scale.yCenter : pointPosition.y; - const properties = { - x, - y, - angle: pointPosition.angle, - skip: isNaN(x) || isNaN(y), - options - }; - this.updateElement(point, i, properties, mode); - } - } -} -RadarController.id = 'radar'; -RadarController.defaults = { - datasetElementType: 'line', - dataElementType: 'point', - indexAxis: 'r', - showLine: true, - elements: { - line: { - fill: 'start' - } - }, -}; -RadarController.overrides = { - aspectRatio: 1, - scales: { - r: { - type: 'radialLinear', - } - } -}; - -class ScatterController extends LineController { -} -ScatterController.id = 'scatter'; -ScatterController.defaults = { - showLine: false, - fill: false -}; -ScatterController.overrides = { - interaction: { - mode: 'point' - }, - plugins: { - tooltip: { - callbacks: { - title() { - return ''; - }, - label(item) { - return '(' + item.label + ', ' + item.formattedValue + ')'; + static id = 'radar'; + static defaults = { + datasetElementType: 'line', + dataElementType: 'point', + indexAxis: 'r', + showLine: true, + elements: { + line: { + fill: 'start' + } } - } + }; + static overrides = { + aspectRatio: 1, + scales: { + r: { + type: 'radialLinear' + } + } + }; + getLabelAndValue(index) { + const vScale = this._cachedMeta.vScale; + const parsed = this.getParsed(index); + return { + label: vScale.getLabels()[index], + value: '' + vScale.getLabelForValue(parsed[vScale.axis]) + }; } - }, - scales: { - x: { - type: 'linear' - }, - y: { - type: 'linear' + parseObjectData(meta, data, start, count) { + return _parseObjectDataRadialScale.bind(this)(meta, data, start, count); } - } -}; + update(mode) { + const meta = this._cachedMeta; + const line = meta.dataset; + const points = meta.data || []; + const labels = meta.iScale.getLabels(); + line.points = points; + if (mode !== 'resize') { + const options = this.resolveDatasetElementOptions(mode); + if (!this.options.showLine) { + options.borderWidth = 0; + } + const properties = { + _loop: true, + _fullLoop: labels.length === points.length, + options + }; + this.updateElement(line, undefined, properties, mode); + } + this.updateElements(points, 0, points.length, mode); + } + updateElements(points, start, count, mode) { + const scale = this._cachedMeta.rScale; + const reset = mode === 'reset'; + for(let i = start; i < start + count; i++){ + const point = points[i]; + const options = this.resolveDataElementOptions(i, point.active ? 'active' : mode); + const pointPosition = scale.getPointPositionForValue(i, this.getParsed(i).r); + const x = reset ? scale.xCenter : pointPosition.x; + const y = reset ? scale.yCenter : pointPosition.y; + const properties = { + x, + y, + angle: pointPosition.angle, + skip: isNaN(x) || isNaN(y), + options + }; + this.updateElement(point, i, properties, mode); + } + } +} + +class ScatterController extends DatasetController { + static id = 'scatter'; + static defaults = { + datasetElementType: false, + dataElementType: 'point', + showLine: false, + fill: false + }; + static overrides = { + interaction: { + mode: 'point' + }, + scales: { + x: { + type: 'linear' + }, + y: { + type: 'linear' + } + } + }; + getLabelAndValue(index) { + const meta = this._cachedMeta; + const labels = this.chart.data.labels || []; + const { xScale , yScale } = meta; + const parsed = this.getParsed(index); + const x = xScale.getLabelForValue(parsed.x); + const y = yScale.getLabelForValue(parsed.y); + return { + label: labels[index] || '', + value: '(' + x + ', ' + y + ')' + }; + } + update(mode) { + const meta = this._cachedMeta; + const { data: points = [] } = meta; + const animationsDisabled = this.chart._animationsDisabled; + let { start , count } = _getStartAndCountOfVisiblePoints(meta, points, animationsDisabled); + this._drawStart = start; + this._drawCount = count; + if (_scaleRangesChanged(meta)) { + start = 0; + count = points.length; + } + if (this.options.showLine) { + const { dataset: line , _dataset } = meta; + line._chart = this.chart; + line._datasetIndex = this.index; + line._decimated = !!_dataset._decimated; + line.points = points; + const options = this.resolveDatasetElementOptions(mode); + options.segment = this.options.segment; + this.updateElement(line, undefined, { + animated: !animationsDisabled, + options + }, mode); + } + this.updateElements(points, start, count, mode); + } + addElements() { + const { showLine } = this.options; + if (!this.datasetElementType && showLine) { + this.datasetElementType = this.chart.registry.getElement('line'); + } + super.addElements(); + } + updateElements(points, start, count, mode) { + const reset = mode === 'reset'; + const { iScale , vScale , _stacked , _dataset } = this._cachedMeta; + const firstOpts = this.resolveDataElementOptions(start, mode); + const sharedOptions = this.getSharedOptions(firstOpts); + const includeOptions = this.includeOptions(mode, sharedOptions); + const iAxis = iScale.axis; + const vAxis = vScale.axis; + const { spanGaps , segment } = this.options; + const maxGapLength = isNumber(spanGaps) ? spanGaps : Number.POSITIVE_INFINITY; + const directUpdate = this.chart._animationsDisabled || reset || mode === 'none'; + let prevParsed = start > 0 && this.getParsed(start - 1); + for(let i = start; i < start + count; ++i){ + const point = points[i]; + const parsed = this.getParsed(i); + const properties = directUpdate ? point : {}; + const nullData = isNullOrUndef(parsed[vAxis]); + const iPixel = properties[iAxis] = iScale.getPixelForValue(parsed[iAxis], i); + const vPixel = properties[vAxis] = reset || nullData ? vScale.getBasePixel() : vScale.getPixelForValue(_stacked ? this.applyStack(vScale, parsed, _stacked) : parsed[vAxis], i); + properties.skip = isNaN(iPixel) || isNaN(vPixel) || nullData; + properties.stop = i > 0 && Math.abs(parsed[iAxis] - prevParsed[iAxis]) > maxGapLength; + if (segment) { + properties.parsed = parsed; + properties.raw = _dataset.data[i]; + } + if (includeOptions) { + properties.options = sharedOptions || this.resolveDataElementOptions(i, point.active ? 'active' : mode); + } + if (!directUpdate) { + this.updateElement(point, i, properties, mode); + } + prevParsed = parsed; + } + this.updateSharedOptions(sharedOptions, mode, firstOpts); + } + getMaxOverflow() { + const meta = this._cachedMeta; + const data = meta.data || []; + if (!this.options.showLine) { + let max = 0; + for(let i = data.length - 1; i >= 0; --i){ + max = Math.max(max, data[i].size(this.resolveDataElementOptions(i)) / 2); + } + return max > 0 && max; + } + const dataset = meta.dataset; + const border = dataset.options && dataset.options.borderWidth || 0; + if (!data.length) { + return border; + } + const firstPoint = data[0].size(this.resolveDataElementOptions(0)); + const lastPoint = data[data.length - 1].size(this.resolveDataElementOptions(data.length - 1)); + return Math.max(border, firstPoint, lastPoint) / 2; + } +} var controllers = /*#__PURE__*/Object.freeze({ __proto__: null, @@ -8865,758 +9738,845 @@ ScatterController: ScatterController }); function clipArc(ctx, element, endAngle) { - const {startAngle, pixelMargin, x, y, outerRadius, innerRadius} = element; - let angleMargin = pixelMargin / outerRadius; - ctx.beginPath(); - ctx.arc(x, y, outerRadius, startAngle - angleMargin, endAngle + angleMargin); - if (innerRadius > pixelMargin) { - angleMargin = pixelMargin / innerRadius; - ctx.arc(x, y, innerRadius, endAngle + angleMargin, startAngle - angleMargin, true); - } else { - ctx.arc(x, y, pixelMargin, endAngle + HALF_PI, startAngle - HALF_PI); - } - ctx.closePath(); - ctx.clip(); + const { startAngle , pixelMargin , x , y , outerRadius , innerRadius } = element; + let angleMargin = pixelMargin / outerRadius; + // Draw an inner border by clipping the arc and drawing a double-width border + // Enlarge the clipping arc by 0.33 pixels to eliminate glitches between borders + ctx.beginPath(); + ctx.arc(x, y, outerRadius, startAngle - angleMargin, endAngle + angleMargin); + if (innerRadius > pixelMargin) { + angleMargin = pixelMargin / innerRadius; + ctx.arc(x, y, innerRadius, endAngle + angleMargin, startAngle - angleMargin, true); + } else { + ctx.arc(x, y, pixelMargin, endAngle + HALF_PI, startAngle - HALF_PI); + } + ctx.closePath(); + ctx.clip(); } function toRadiusCorners(value) { - return _readValueToProps(value, ['outerStart', 'outerEnd', 'innerStart', 'innerEnd']); + return _readValueToProps(value, [ + 'outerStart', + 'outerEnd', + 'innerStart', + 'innerEnd' + ]); } -function parseBorderRadius$1(arc, innerRadius, outerRadius, angleDelta) { - const o = toRadiusCorners(arc.options.borderRadius); - const halfThickness = (outerRadius - innerRadius) / 2; - const innerLimit = Math.min(halfThickness, angleDelta * innerRadius / 2); - const computeOuterLimit = (val) => { - const outerArcLimit = (outerRadius - Math.min(halfThickness, val)) * angleDelta / 2; - return _limitValue(val, 0, Math.min(halfThickness, outerArcLimit)); - }; - return { - outerStart: computeOuterLimit(o.outerStart), - outerEnd: computeOuterLimit(o.outerEnd), - innerStart: _limitValue(o.innerStart, 0, innerLimit), - innerEnd: _limitValue(o.innerEnd, 0, innerLimit), - }; +/** + * Parse border radius from the provided options + */ function parseBorderRadius$1(arc, innerRadius, outerRadius, angleDelta) { + const o = toRadiusCorners(arc.options.borderRadius); + const halfThickness = (outerRadius - innerRadius) / 2; + const innerLimit = Math.min(halfThickness, angleDelta * innerRadius / 2); + // Outer limits are complicated. We want to compute the available angular distance at + // a radius of outerRadius - borderRadius because for small angular distances, this term limits. + // We compute at r = outerRadius - borderRadius because this circle defines the center of the border corners. + // + // If the borderRadius is large, that value can become negative. + // This causes the outer borders to lose their radius entirely, which is rather unexpected. To solve that, if borderRadius > outerRadius + // we know that the thickness term will dominate and compute the limits at that point + const computeOuterLimit = (val)=>{ + const outerArcLimit = (outerRadius - Math.min(halfThickness, val)) * angleDelta / 2; + return _limitValue(val, 0, Math.min(halfThickness, outerArcLimit)); + }; + return { + outerStart: computeOuterLimit(o.outerStart), + outerEnd: computeOuterLimit(o.outerEnd), + innerStart: _limitValue(o.innerStart, 0, innerLimit), + innerEnd: _limitValue(o.innerEnd, 0, innerLimit) + }; } -function rThetaToXY(r, theta, x, y) { - return { - x: x + r * Math.cos(theta), - y: y + r * Math.sin(theta), - }; +/** + * Convert (r, 𝜃) to (x, y) + */ function rThetaToXY(r, theta, x, y) { + return { + x: x + r * Math.cos(theta), + y: y + r * Math.sin(theta) + }; } -function pathArc(ctx, element, offset, spacing, end) { - const {x, y, startAngle: start, pixelMargin, innerRadius: innerR} = element; - const outerRadius = Math.max(element.outerRadius + spacing + offset - pixelMargin, 0); - const innerRadius = innerR > 0 ? innerR + spacing + offset + pixelMargin : 0; - let spacingOffset = 0; - const alpha = end - start; - if (spacing) { - const noSpacingInnerRadius = innerR > 0 ? innerR - spacing : 0; - const noSpacingOuterRadius = outerRadius > 0 ? outerRadius - spacing : 0; - const avNogSpacingRadius = (noSpacingInnerRadius + noSpacingOuterRadius) / 2; - const adjustedAngle = avNogSpacingRadius !== 0 ? (alpha * avNogSpacingRadius) / (avNogSpacingRadius + spacing) : alpha; - spacingOffset = (alpha - adjustedAngle) / 2; - } - const beta = Math.max(0.001, alpha * outerRadius - offset / PI) / outerRadius; - const angleOffset = (alpha - beta) / 2; - const startAngle = start + angleOffset + spacingOffset; - const endAngle = end - angleOffset - spacingOffset; - const {outerStart, outerEnd, innerStart, innerEnd} = parseBorderRadius$1(element, innerRadius, outerRadius, endAngle - startAngle); - const outerStartAdjustedRadius = outerRadius - outerStart; - const outerEndAdjustedRadius = outerRadius - outerEnd; - const outerStartAdjustedAngle = startAngle + outerStart / outerStartAdjustedRadius; - const outerEndAdjustedAngle = endAngle - outerEnd / outerEndAdjustedRadius; - const innerStartAdjustedRadius = innerRadius + innerStart; - const innerEndAdjustedRadius = innerRadius + innerEnd; - const innerStartAdjustedAngle = startAngle + innerStart / innerStartAdjustedRadius; - const innerEndAdjustedAngle = endAngle - innerEnd / innerEndAdjustedRadius; - ctx.beginPath(); - ctx.arc(x, y, outerRadius, outerStartAdjustedAngle, outerEndAdjustedAngle); - if (outerEnd > 0) { - const pCenter = rThetaToXY(outerEndAdjustedRadius, outerEndAdjustedAngle, x, y); - ctx.arc(pCenter.x, pCenter.y, outerEnd, outerEndAdjustedAngle, endAngle + HALF_PI); - } - const p4 = rThetaToXY(innerEndAdjustedRadius, endAngle, x, y); - ctx.lineTo(p4.x, p4.y); - if (innerEnd > 0) { - const pCenter = rThetaToXY(innerEndAdjustedRadius, innerEndAdjustedAngle, x, y); - ctx.arc(pCenter.x, pCenter.y, innerEnd, endAngle + HALF_PI, innerEndAdjustedAngle + Math.PI); - } - ctx.arc(x, y, innerRadius, endAngle - (innerEnd / innerRadius), startAngle + (innerStart / innerRadius), true); - if (innerStart > 0) { - const pCenter = rThetaToXY(innerStartAdjustedRadius, innerStartAdjustedAngle, x, y); - ctx.arc(pCenter.x, pCenter.y, innerStart, innerStartAdjustedAngle + Math.PI, startAngle - HALF_PI); - } - const p8 = rThetaToXY(outerStartAdjustedRadius, startAngle, x, y); - ctx.lineTo(p8.x, p8.y); - if (outerStart > 0) { - const pCenter = rThetaToXY(outerStartAdjustedRadius, outerStartAdjustedAngle, x, y); - ctx.arc(pCenter.x, pCenter.y, outerStart, startAngle - HALF_PI, outerStartAdjustedAngle); - } - ctx.closePath(); -} -function drawArc(ctx, element, offset, spacing) { - const {fullCircles, startAngle, circumference} = element; - let endAngle = element.endAngle; - if (fullCircles) { - pathArc(ctx, element, offset, spacing, startAngle + TAU); - for (let i = 0; i < fullCircles; ++i) { - ctx.fill(); +/** + * Path the arc, respecting border radius by separating into left and right halves. + * + * Start End + * + * 1--->a--->2 Outer + * / \ + * 8 3 + * | | + * | | + * 7 4 + * \ / + * 6<---b<---5 Inner + */ function pathArc(ctx, element, offset, spacing, end, circular) { + const { x , y , startAngle: start , pixelMargin , innerRadius: innerR } = element; + const outerRadius = Math.max(element.outerRadius + spacing + offset - pixelMargin, 0); + const innerRadius = innerR > 0 ? innerR + spacing + offset + pixelMargin : 0; + let spacingOffset = 0; + const alpha = end - start; + if (spacing) { + // When spacing is present, it is the same for all items + // So we adjust the start and end angle of the arc such that + // the distance is the same as it would be without the spacing + const noSpacingInnerRadius = innerR > 0 ? innerR - spacing : 0; + const noSpacingOuterRadius = outerRadius > 0 ? outerRadius - spacing : 0; + const avNogSpacingRadius = (noSpacingInnerRadius + noSpacingOuterRadius) / 2; + const adjustedAngle = avNogSpacingRadius !== 0 ? alpha * avNogSpacingRadius / (avNogSpacingRadius + spacing) : alpha; + spacingOffset = (alpha - adjustedAngle) / 2; } - if (!isNaN(circumference)) { - endAngle = startAngle + circumference % TAU; - if (circumference % TAU === 0) { - endAngle += TAU; - } + const beta = Math.max(0.001, alpha * outerRadius - offset / PI) / outerRadius; + const angleOffset = (alpha - beta) / 2; + const startAngle = start + angleOffset + spacingOffset; + const endAngle = end - angleOffset - spacingOffset; + const { outerStart , outerEnd , innerStart , innerEnd } = parseBorderRadius$1(element, innerRadius, outerRadius, endAngle - startAngle); + const outerStartAdjustedRadius = outerRadius - outerStart; + const outerEndAdjustedRadius = outerRadius - outerEnd; + const outerStartAdjustedAngle = startAngle + outerStart / outerStartAdjustedRadius; + const outerEndAdjustedAngle = endAngle - outerEnd / outerEndAdjustedRadius; + const innerStartAdjustedRadius = innerRadius + innerStart; + const innerEndAdjustedRadius = innerRadius + innerEnd; + const innerStartAdjustedAngle = startAngle + innerStart / innerStartAdjustedRadius; + const innerEndAdjustedAngle = endAngle - innerEnd / innerEndAdjustedRadius; + ctx.beginPath(); + if (circular) { + // The first arc segments from point 1 to point a to point 2 + const outerMidAdjustedAngle = (outerStartAdjustedAngle + outerEndAdjustedAngle) / 2; + ctx.arc(x, y, outerRadius, outerStartAdjustedAngle, outerMidAdjustedAngle); + ctx.arc(x, y, outerRadius, outerMidAdjustedAngle, outerEndAdjustedAngle); + // The corner segment from point 2 to point 3 + if (outerEnd > 0) { + const pCenter = rThetaToXY(outerEndAdjustedRadius, outerEndAdjustedAngle, x, y); + ctx.arc(pCenter.x, pCenter.y, outerEnd, outerEndAdjustedAngle, endAngle + HALF_PI); + } + // The line from point 3 to point 4 + const p4 = rThetaToXY(innerEndAdjustedRadius, endAngle, x, y); + ctx.lineTo(p4.x, p4.y); + // The corner segment from point 4 to point 5 + if (innerEnd > 0) { + const pCenter1 = rThetaToXY(innerEndAdjustedRadius, innerEndAdjustedAngle, x, y); + ctx.arc(pCenter1.x, pCenter1.y, innerEnd, endAngle + HALF_PI, innerEndAdjustedAngle + Math.PI); + } + // The inner arc from point 5 to point b to point 6 + const innerMidAdjustedAngle = (endAngle - innerEnd / innerRadius + (startAngle + innerStart / innerRadius)) / 2; + ctx.arc(x, y, innerRadius, endAngle - innerEnd / innerRadius, innerMidAdjustedAngle, true); + ctx.arc(x, y, innerRadius, innerMidAdjustedAngle, startAngle + innerStart / innerRadius, true); + // The corner segment from point 6 to point 7 + if (innerStart > 0) { + const pCenter2 = rThetaToXY(innerStartAdjustedRadius, innerStartAdjustedAngle, x, y); + ctx.arc(pCenter2.x, pCenter2.y, innerStart, innerStartAdjustedAngle + Math.PI, startAngle - HALF_PI); + } + // The line from point 7 to point 8 + const p8 = rThetaToXY(outerStartAdjustedRadius, startAngle, x, y); + ctx.lineTo(p8.x, p8.y); + // The corner segment from point 8 to point 1 + if (outerStart > 0) { + const pCenter3 = rThetaToXY(outerStartAdjustedRadius, outerStartAdjustedAngle, x, y); + ctx.arc(pCenter3.x, pCenter3.y, outerStart, startAngle - HALF_PI, outerStartAdjustedAngle); + } + } else { + ctx.moveTo(x, y); + const outerStartX = Math.cos(outerStartAdjustedAngle) * outerRadius + x; + const outerStartY = Math.sin(outerStartAdjustedAngle) * outerRadius + y; + ctx.lineTo(outerStartX, outerStartY); + const outerEndX = Math.cos(outerEndAdjustedAngle) * outerRadius + x; + const outerEndY = Math.sin(outerEndAdjustedAngle) * outerRadius + y; + ctx.lineTo(outerEndX, outerEndY); } - } - pathArc(ctx, element, offset, spacing, endAngle); - ctx.fill(); - return endAngle; + ctx.closePath(); } -function drawFullCircleBorders(ctx, element, inner) { - const {x, y, startAngle, pixelMargin, fullCircles} = element; - const outerRadius = Math.max(element.outerRadius - pixelMargin, 0); - const innerRadius = element.innerRadius + pixelMargin; - let i; - if (inner) { - clipArc(ctx, element, startAngle + TAU); - } - ctx.beginPath(); - ctx.arc(x, y, innerRadius, startAngle + TAU, startAngle, true); - for (i = 0; i < fullCircles; ++i) { - ctx.stroke(); - } - ctx.beginPath(); - ctx.arc(x, y, outerRadius, startAngle, startAngle + TAU); - for (i = 0; i < fullCircles; ++i) { - ctx.stroke(); - } +function drawArc(ctx, element, offset, spacing, circular) { + const { fullCircles , startAngle , circumference } = element; + let endAngle = element.endAngle; + if (fullCircles) { + pathArc(ctx, element, offset, spacing, endAngle, circular); + for(let i = 0; i < fullCircles; ++i){ + ctx.fill(); + } + if (!isNaN(circumference)) { + endAngle = startAngle + (circumference % TAU || TAU); + } + } + pathArc(ctx, element, offset, spacing, endAngle, circular); + ctx.fill(); + return endAngle; } -function drawBorder(ctx, element, offset, spacing, endAngle) { - const {options} = element; - const {borderWidth, borderJoinStyle} = options; - const inner = options.borderAlign === 'inner'; - if (!borderWidth) { - return; - } - if (inner) { - ctx.lineWidth = borderWidth * 2; - ctx.lineJoin = borderJoinStyle || 'round'; - } else { - ctx.lineWidth = borderWidth; - ctx.lineJoin = borderJoinStyle || 'bevel'; - } - if (element.fullCircles) { - drawFullCircleBorders(ctx, element, inner); - } - if (inner) { - clipArc(ctx, element, endAngle); - } - pathArc(ctx, element, offset, spacing, endAngle); - ctx.stroke(); +function drawBorder(ctx, element, offset, spacing, circular) { + const { fullCircles , startAngle , circumference , options } = element; + const { borderWidth , borderJoinStyle } = options; + const inner = options.borderAlign === 'inner'; + if (!borderWidth) { + return; + } + if (inner) { + ctx.lineWidth = borderWidth * 2; + ctx.lineJoin = borderJoinStyle || 'round'; + } else { + ctx.lineWidth = borderWidth; + ctx.lineJoin = borderJoinStyle || 'bevel'; + } + let endAngle = element.endAngle; + if (fullCircles) { + pathArc(ctx, element, offset, spacing, endAngle, circular); + for(let i = 0; i < fullCircles; ++i){ + ctx.stroke(); + } + if (!isNaN(circumference)) { + endAngle = startAngle + (circumference % TAU || TAU); + } + } + if (inner) { + clipArc(ctx, element, endAngle); + } + if (!fullCircles) { + pathArc(ctx, element, offset, spacing, endAngle, circular); + ctx.stroke(); + } } class ArcElement extends Element { - constructor(cfg) { - super(); - this.options = undefined; - this.circumference = undefined; - this.startAngle = undefined; - this.endAngle = undefined; - this.innerRadius = undefined; - this.outerRadius = undefined; - this.pixelMargin = 0; - this.fullCircles = 0; - if (cfg) { - Object.assign(this, cfg); - } - } - inRange(chartX, chartY, useFinalPosition) { - const point = this.getProps(['x', 'y'], useFinalPosition); - const {angle, distance} = getAngleFromPoint(point, {x: chartX, y: chartY}); - const {startAngle, endAngle, innerRadius, outerRadius, circumference} = this.getProps([ - 'startAngle', - 'endAngle', - 'innerRadius', - 'outerRadius', - 'circumference' - ], useFinalPosition); - const rAdjust = this.options.spacing / 2; - const _circumference = valueOrDefault(circumference, endAngle - startAngle); - const betweenAngles = _circumference >= TAU || _angleBetween(angle, startAngle, endAngle); - const withinRadius = _isBetween(distance, innerRadius + rAdjust, outerRadius + rAdjust); - return (betweenAngles && withinRadius); - } - getCenterPoint(useFinalPosition) { - const {x, y, startAngle, endAngle, innerRadius, outerRadius} = this.getProps([ - 'x', - 'y', - 'startAngle', - 'endAngle', - 'innerRadius', - 'outerRadius', - 'circumference', - ], useFinalPosition); - const {offset, spacing} = this.options; - const halfAngle = (startAngle + endAngle) / 2; - const halfRadius = (innerRadius + outerRadius + spacing + offset) / 2; - return { - x: x + Math.cos(halfAngle) * halfRadius, - y: y + Math.sin(halfAngle) * halfRadius + static id = 'arc'; + static defaults = { + borderAlign: 'center', + borderColor: '#fff', + borderJoinStyle: undefined, + borderRadius: 0, + borderWidth: 2, + offset: 0, + spacing: 0, + angle: undefined, + circular: true }; - } - tooltipPosition(useFinalPosition) { - return this.getCenterPoint(useFinalPosition); - } - draw(ctx) { - const {options, circumference} = this; - const offset = (options.offset || 0) / 2; - const spacing = (options.spacing || 0) / 2; - this.pixelMargin = (options.borderAlign === 'inner') ? 0.33 : 0; - this.fullCircles = circumference > TAU ? Math.floor(circumference / TAU) : 0; - if (circumference === 0 || this.innerRadius < 0 || this.outerRadius < 0) { - return; + static defaultRoutes = { + backgroundColor: 'backgroundColor' + }; + constructor(cfg){ + super(); + this.options = undefined; + this.circumference = undefined; + this.startAngle = undefined; + this.endAngle = undefined; + this.innerRadius = undefined; + this.outerRadius = undefined; + this.pixelMargin = 0; + this.fullCircles = 0; + if (cfg) { + Object.assign(this, cfg); + } } - ctx.save(); - let radiusOffset = 0; - if (offset) { - radiusOffset = offset / 2; - const halfAngle = (this.startAngle + this.endAngle) / 2; - ctx.translate(Math.cos(halfAngle) * radiusOffset, Math.sin(halfAngle) * radiusOffset); - if (this.circumference >= PI) { - radiusOffset = offset; - } + inRange(chartX, chartY, useFinalPosition) { + const point = this.getProps([ + 'x', + 'y' + ], useFinalPosition); + const { angle , distance } = getAngleFromPoint(point, { + x: chartX, + y: chartY + }); + const { startAngle , endAngle , innerRadius , outerRadius , circumference } = this.getProps([ + 'startAngle', + 'endAngle', + 'innerRadius', + 'outerRadius', + 'circumference' + ], useFinalPosition); + const rAdjust = this.options.spacing / 2; + const _circumference = valueOrDefault(circumference, endAngle - startAngle); + const betweenAngles = _circumference >= TAU || _angleBetween(angle, startAngle, endAngle); + const withinRadius = _isBetween(distance, innerRadius + rAdjust, outerRadius + rAdjust); + return betweenAngles && withinRadius; + } + getCenterPoint(useFinalPosition) { + const { x , y , startAngle , endAngle , innerRadius , outerRadius } = this.getProps([ + 'x', + 'y', + 'startAngle', + 'endAngle', + 'innerRadius', + 'outerRadius' + ], useFinalPosition); + const { offset , spacing } = this.options; + const halfAngle = (startAngle + endAngle) / 2; + const halfRadius = (innerRadius + outerRadius + spacing + offset) / 2; + return { + x: x + Math.cos(halfAngle) * halfRadius, + y: y + Math.sin(halfAngle) * halfRadius + }; + } + tooltipPosition(useFinalPosition) { + return this.getCenterPoint(useFinalPosition); + } + draw(ctx) { + const { options , circumference } = this; + const offset = (options.offset || 0) / 4; + const spacing = (options.spacing || 0) / 2; + const circular = options.circular; + this.pixelMargin = options.borderAlign === 'inner' ? 0.33 : 0; + this.fullCircles = circumference > TAU ? Math.floor(circumference / TAU) : 0; + if (circumference === 0 || this.innerRadius < 0 || this.outerRadius < 0) { + return; + } + ctx.save(); + const halfAngle = (this.startAngle + this.endAngle) / 2; + ctx.translate(Math.cos(halfAngle) * offset, Math.sin(halfAngle) * offset); + const fix = 1 - Math.sin(Math.min(PI, circumference || 0)); + const radiusOffset = offset * fix; + ctx.fillStyle = options.backgroundColor; + ctx.strokeStyle = options.borderColor; + drawArc(ctx, this, radiusOffset, spacing, circular); + drawBorder(ctx, this, radiusOffset, spacing, circular); + ctx.restore(); } - ctx.fillStyle = options.backgroundColor; - ctx.strokeStyle = options.borderColor; - const endAngle = drawArc(ctx, this, radiusOffset, spacing); - drawBorder(ctx, this, radiusOffset, spacing, endAngle); - ctx.restore(); - } } -ArcElement.id = 'arc'; -ArcElement.defaults = { - borderAlign: 'center', - borderColor: '#fff', - borderJoinStyle: undefined, - borderRadius: 0, - borderWidth: 2, - offset: 0, - spacing: 0, - angle: undefined, -}; -ArcElement.defaultRoutes = { - backgroundColor: 'backgroundColor' -}; function setStyle(ctx, options, style = options) { - ctx.lineCap = valueOrDefault(style.borderCapStyle, options.borderCapStyle); - ctx.setLineDash(valueOrDefault(style.borderDash, options.borderDash)); - ctx.lineDashOffset = valueOrDefault(style.borderDashOffset, options.borderDashOffset); - ctx.lineJoin = valueOrDefault(style.borderJoinStyle, options.borderJoinStyle); - ctx.lineWidth = valueOrDefault(style.borderWidth, options.borderWidth); - ctx.strokeStyle = valueOrDefault(style.borderColor, options.borderColor); + ctx.lineCap = valueOrDefault(style.borderCapStyle, options.borderCapStyle); + ctx.setLineDash(valueOrDefault(style.borderDash, options.borderDash)); + ctx.lineDashOffset = valueOrDefault(style.borderDashOffset, options.borderDashOffset); + ctx.lineJoin = valueOrDefault(style.borderJoinStyle, options.borderJoinStyle); + ctx.lineWidth = valueOrDefault(style.borderWidth, options.borderWidth); + ctx.strokeStyle = valueOrDefault(style.borderColor, options.borderColor); } function lineTo(ctx, previous, target) { - ctx.lineTo(target.x, target.y); + ctx.lineTo(target.x, target.y); } function getLineMethod(options) { - if (options.stepped) { - return _steppedLineTo; - } - if (options.tension || options.cubicInterpolationMode === 'monotone') { - return _bezierCurveTo; - } - return lineTo; + if (options.stepped) { + return _steppedLineTo; + } + if (options.tension || options.cubicInterpolationMode === 'monotone') { + return _bezierCurveTo; + } + return lineTo; } function pathVars(points, segment, params = {}) { - const count = points.length; - const {start: paramsStart = 0, end: paramsEnd = count - 1} = params; - const {start: segmentStart, end: segmentEnd} = segment; - const start = Math.max(paramsStart, segmentStart); - const end = Math.min(paramsEnd, segmentEnd); - const outside = paramsStart < segmentStart && paramsEnd < segmentStart || paramsStart > segmentEnd && paramsEnd > segmentEnd; - return { - count, - start, - loop: segment.loop, - ilen: end < start && !outside ? count + end - start : end - start - }; + const count = points.length; + const { start: paramsStart = 0 , end: paramsEnd = count - 1 } = params; + const { start: segmentStart , end: segmentEnd } = segment; + const start = Math.max(paramsStart, segmentStart); + const end = Math.min(paramsEnd, segmentEnd); + const outside = paramsStart < segmentStart && paramsEnd < segmentStart || paramsStart > segmentEnd && paramsEnd > segmentEnd; + return { + count, + start, + loop: segment.loop, + ilen: end < start && !outside ? count + end - start : end - start + }; } -function pathSegment(ctx, line, segment, params) { - const {points, options} = line; - const {count, start, loop, ilen} = pathVars(points, segment, params); - const lineMethod = getLineMethod(options); - let {move = true, reverse} = params || {}; - let i, point, prev; - for (i = 0; i <= ilen; ++i) { - point = points[(start + (reverse ? ilen - i : i)) % count]; - if (point.skip) { - continue; - } else if (move) { - ctx.moveTo(point.x, point.y); - move = false; - } else { - lineMethod(ctx, prev, point, reverse, options.stepped); + function pathSegment(ctx, line, segment, params) { + const { points , options } = line; + const { count , start , loop , ilen } = pathVars(points, segment, params); + const lineMethod = getLineMethod(options); + let { move =true , reverse } = params || {}; + let i, point, prev; + for(i = 0; i <= ilen; ++i){ + point = points[(start + (reverse ? ilen - i : i)) % count]; + if (point.skip) { + continue; + } else if (move) { + ctx.moveTo(point.x, point.y); + move = false; + } else { + lineMethod(ctx, prev, point, reverse, options.stepped); + } + prev = point; } - prev = point; - } - if (loop) { - point = points[(start + (reverse ? ilen : 0)) % count]; - lineMethod(ctx, prev, point, reverse, options.stepped); - } - return !!loop; + if (loop) { + point = points[(start + (reverse ? ilen : 0)) % count]; + lineMethod(ctx, prev, point, reverse, options.stepped); + } + return !!loop; } -function fastPathSegment(ctx, line, segment, params) { - const points = line.points; - const {count, start, ilen} = pathVars(points, segment, params); - const {move = true, reverse} = params || {}; - let avgX = 0; - let countX = 0; - let i, point, prevX, minY, maxY, lastY; - const pointIndex = (index) => (start + (reverse ? ilen - index : index)) % count; - const drawX = () => { - if (minY !== maxY) { - ctx.lineTo(avgX, maxY); - ctx.lineTo(avgX, minY); - ctx.lineTo(avgX, lastY); + function fastPathSegment(ctx, line, segment, params) { + const points = line.points; + const { count , start , ilen } = pathVars(points, segment, params); + const { move =true , reverse } = params || {}; + let avgX = 0; + let countX = 0; + let i, point, prevX, minY, maxY, lastY; + const pointIndex = (index)=>(start + (reverse ? ilen - index : index)) % count; + const drawX = ()=>{ + if (minY !== maxY) { + ctx.lineTo(avgX, maxY); + ctx.lineTo(avgX, minY); + ctx.lineTo(avgX, lastY); + } + }; + if (move) { + point = points[pointIndex(0)]; + ctx.moveTo(point.x, point.y); } - }; - if (move) { - point = points[pointIndex(0)]; - ctx.moveTo(point.x, point.y); - } - for (i = 0; i <= ilen; ++i) { - point = points[pointIndex(i)]; - if (point.skip) { - continue; + for(i = 0; i <= ilen; ++i){ + point = points[pointIndex(i)]; + if (point.skip) { + continue; + } + const x = point.x; + const y = point.y; + const truncX = x | 0; + if (truncX === prevX) { + if (y < minY) { + minY = y; + } else if (y > maxY) { + maxY = y; + } + avgX = (countX * avgX + x) / ++countX; + } else { + drawX(); + ctx.lineTo(x, y); + prevX = truncX; + countX = 0; + minY = maxY = y; + } + lastY = y; } - const x = point.x; - const y = point.y; - const truncX = x | 0; - if (truncX === prevX) { - if (y < minY) { - minY = y; - } else if (y > maxY) { - maxY = y; - } - avgX = (countX * avgX + x) / ++countX; - } else { - drawX(); - ctx.lineTo(x, y); - prevX = truncX; - countX = 0; - minY = maxY = y; - } - lastY = y; - } - drawX(); + drawX(); } -function _getSegmentMethod(line) { - const opts = line.options; - const borderDash = opts.borderDash && opts.borderDash.length; - const useFastPath = !line._decimated && !line._loop && !opts.tension && opts.cubicInterpolationMode !== 'monotone' && !opts.stepped && !borderDash; - return useFastPath ? fastPathSegment : pathSegment; + function _getSegmentMethod(line) { + const opts = line.options; + const borderDash = opts.borderDash && opts.borderDash.length; + const useFastPath = !line._decimated && !line._loop && !opts.tension && opts.cubicInterpolationMode !== 'monotone' && !opts.stepped && !borderDash; + return useFastPath ? fastPathSegment : pathSegment; } -function _getInterpolationMethod(options) { - if (options.stepped) { - return _steppedInterpolation; - } - if (options.tension || options.cubicInterpolationMode === 'monotone') { - return _bezierInterpolation; - } - return _pointInLine; + function _getInterpolationMethod(options) { + if (options.stepped) { + return _steppedInterpolation; + } + if (options.tension || options.cubicInterpolationMode === 'monotone') { + return _bezierInterpolation; + } + return _pointInLine; } function strokePathWithCache(ctx, line, start, count) { - let path = line._path; - if (!path) { - path = line._path = new Path2D(); - if (line.path(path, start, count)) { - path.closePath(); + let path = line._path; + if (!path) { + path = line._path = new Path2D(); + if (line.path(path, start, count)) { + path.closePath(); + } } - } - setStyle(ctx, line.options); - ctx.stroke(path); + setStyle(ctx, line.options); + ctx.stroke(path); } function strokePathDirect(ctx, line, start, count) { - const {segments, options} = line; - const segmentMethod = _getSegmentMethod(line); - for (const segment of segments) { - setStyle(ctx, options, segment.style); - ctx.beginPath(); - if (segmentMethod(ctx, line, segment, {start, end: start + count - 1})) { - ctx.closePath(); + const { segments , options } = line; + const segmentMethod = _getSegmentMethod(line); + for (const segment of segments){ + setStyle(ctx, options, segment.style); + ctx.beginPath(); + if (segmentMethod(ctx, line, segment, { + start, + end: start + count - 1 + })) { + ctx.closePath(); + } + ctx.stroke(); } - ctx.stroke(); - } } const usePath2D = typeof Path2D === 'function'; function draw(ctx, line, start, count) { - if (usePath2D && !line.options.segment) { - strokePathWithCache(ctx, line, start, count); - } else { - strokePathDirect(ctx, line, start, count); - } + if (usePath2D && !line.options.segment) { + strokePathWithCache(ctx, line, start, count); + } else { + strokePathDirect(ctx, line, start, count); + } } class LineElement extends Element { - constructor(cfg) { - super(); - this.animated = true; - this.options = undefined; - this._chart = undefined; - this._loop = undefined; - this._fullLoop = undefined; - this._path = undefined; - this._points = undefined; - this._segments = undefined; - this._decimated = false; - this._pointsUpdated = false; - this._datasetIndex = undefined; - if (cfg) { - Object.assign(this, cfg); + static id = 'line'; + static defaults = { + borderCapStyle: 'butt', + borderDash: [], + borderDashOffset: 0, + borderJoinStyle: 'miter', + borderWidth: 3, + capBezierPoints: true, + cubicInterpolationMode: 'default', + fill: false, + spanGaps: false, + stepped: false, + tension: 0 + }; + static defaultRoutes = { + backgroundColor: 'backgroundColor', + borderColor: 'borderColor' + }; + static descriptors = { + _scriptable: true, + _indexable: (name)=>name !== 'borderDash' && name !== 'fill' + }; + constructor(cfg){ + super(); + this.animated = true; + this.options = undefined; + this._chart = undefined; + this._loop = undefined; + this._fullLoop = undefined; + this._path = undefined; + this._points = undefined; + this._segments = undefined; + this._decimated = false; + this._pointsUpdated = false; + this._datasetIndex = undefined; + if (cfg) { + Object.assign(this, cfg); + } } - } - updateControlPoints(chartArea, indexAxis) { - const options = this.options; - if ((options.tension || options.cubicInterpolationMode === 'monotone') && !options.stepped && !this._pointsUpdated) { - const loop = options.spanGaps ? this._loop : this._fullLoop; - _updateBezierControlPoints(this._points, options, chartArea, loop, indexAxis); - this._pointsUpdated = true; + updateControlPoints(chartArea, indexAxis) { + const options = this.options; + if ((options.tension || options.cubicInterpolationMode === 'monotone') && !options.stepped && !this._pointsUpdated) { + const loop = options.spanGaps ? this._loop : this._fullLoop; + _updateBezierControlPoints(this._points, options, chartArea, loop, indexAxis); + this._pointsUpdated = true; + } } - } - set points(points) { - this._points = points; - delete this._segments; - delete this._path; - this._pointsUpdated = false; - } - get points() { - return this._points; - } - get segments() { - return this._segments || (this._segments = _computeSegments(this, this.options.segment)); - } - first() { - const segments = this.segments; - const points = this.points; - return segments.length && points[segments[0].start]; - } - last() { - const segments = this.segments; - const points = this.points; - const count = segments.length; - return count && points[segments[count - 1].end]; - } - interpolate(point, property) { - const options = this.options; - const value = point[property]; - const points = this.points; - const segments = _boundSegments(this, {property, start: value, end: value}); - if (!segments.length) { - return; + set points(points) { + this._points = points; + delete this._segments; + delete this._path; + this._pointsUpdated = false; } - const result = []; - const _interpolate = _getInterpolationMethod(options); - let i, ilen; - for (i = 0, ilen = segments.length; i < ilen; ++i) { - const {start, end} = segments[i]; - const p1 = points[start]; - const p2 = points[end]; - if (p1 === p2) { - result.push(p1); - continue; - } - const t = Math.abs((value - p1[property]) / (p2[property] - p1[property])); - const interpolated = _interpolate(p1, p2, t, options.stepped); - interpolated[property] = point[property]; - result.push(interpolated); + get points() { + return this._points; } - return result.length === 1 ? result[0] : result; - } - pathSegment(ctx, segment, params) { - const segmentMethod = _getSegmentMethod(this); - return segmentMethod(ctx, this, segment, params); - } - path(ctx, start, count) { - const segments = this.segments; - const segmentMethod = _getSegmentMethod(this); - let loop = this._loop; - start = start || 0; - count = count || (this.points.length - start); - for (const segment of segments) { - loop &= segmentMethod(ctx, this, segment, {start, end: start + count - 1}); + get segments() { + return this._segments || (this._segments = _computeSegments(this, this.options.segment)); } - return !!loop; - } - draw(ctx, chartArea, start, count) { - const options = this.options || {}; - const points = this.points || []; - if (points.length && options.borderWidth) { - ctx.save(); - draw(ctx, this, start, count); - ctx.restore(); + first() { + const segments = this.segments; + const points = this.points; + return segments.length && points[segments[0].start]; } - if (this.animated) { - this._pointsUpdated = false; - this._path = undefined; + last() { + const segments = this.segments; + const points = this.points; + const count = segments.length; + return count && points[segments[count - 1].end]; + } + interpolate(point, property) { + const options = this.options; + const value = point[property]; + const points = this.points; + const segments = _boundSegments(this, { + property, + start: value, + end: value + }); + if (!segments.length) { + return; + } + const result = []; + const _interpolate = _getInterpolationMethod(options); + let i, ilen; + for(i = 0, ilen = segments.length; i < ilen; ++i){ + const { start , end } = segments[i]; + const p1 = points[start]; + const p2 = points[end]; + if (p1 === p2) { + result.push(p1); + continue; + } + const t = Math.abs((value - p1[property]) / (p2[property] - p1[property])); + const interpolated = _interpolate(p1, p2, t, options.stepped); + interpolated[property] = point[property]; + result.push(interpolated); + } + return result.length === 1 ? result[0] : result; + } + pathSegment(ctx, segment, params) { + const segmentMethod = _getSegmentMethod(this); + return segmentMethod(ctx, this, segment, params); + } + path(ctx, start, count) { + const segments = this.segments; + const segmentMethod = _getSegmentMethod(this); + let loop = this._loop; + start = start || 0; + count = count || this.points.length - start; + for (const segment of segments){ + loop &= segmentMethod(ctx, this, segment, { + start, + end: start + count - 1 + }); + } + return !!loop; + } + draw(ctx, chartArea, start, count) { + const options = this.options || {}; + const points = this.points || []; + if (points.length && options.borderWidth) { + ctx.save(); + draw(ctx, this, start, count); + ctx.restore(); + } + if (this.animated) { + this._pointsUpdated = false; + this._path = undefined; + } } - } } -LineElement.id = 'line'; -LineElement.defaults = { - borderCapStyle: 'butt', - borderDash: [], - borderDashOffset: 0, - borderJoinStyle: 'miter', - borderWidth: 3, - capBezierPoints: true, - cubicInterpolationMode: 'default', - fill: false, - spanGaps: false, - stepped: false, - tension: 0, -}; -LineElement.defaultRoutes = { - backgroundColor: 'backgroundColor', - borderColor: 'borderColor' -}; -LineElement.descriptors = { - _scriptable: true, - _indexable: (name) => name !== 'borderDash' && name !== 'fill', -}; function inRange$1(el, pos, axis, useFinalPosition) { - const options = el.options; - const {[axis]: value} = el.getProps([axis], useFinalPosition); - return (Math.abs(pos - value) < options.radius + options.hitRadius); + const options = el.options; + const { [axis]: value } = el.getProps([ + axis + ], useFinalPosition); + return Math.abs(pos - value) < options.radius + options.hitRadius; } class PointElement extends Element { - constructor(cfg) { - super(); - this.options = undefined; - this.parsed = undefined; - this.skip = undefined; - this.stop = undefined; - if (cfg) { - Object.assign(this, cfg); + static id = 'point'; + /** + * @type {any} + */ static defaults = { + borderWidth: 1, + hitRadius: 1, + hoverBorderWidth: 1, + hoverRadius: 4, + pointStyle: 'circle', + radius: 3, + rotation: 0 + }; + /** + * @type {any} + */ static defaultRoutes = { + backgroundColor: 'backgroundColor', + borderColor: 'borderColor' + }; + constructor(cfg){ + super(); + this.options = undefined; + this.parsed = undefined; + this.skip = undefined; + this.stop = undefined; + if (cfg) { + Object.assign(this, cfg); + } } - } - inRange(mouseX, mouseY, useFinalPosition) { - const options = this.options; - const {x, y} = this.getProps(['x', 'y'], useFinalPosition); - return ((Math.pow(mouseX - x, 2) + Math.pow(mouseY - y, 2)) < Math.pow(options.hitRadius + options.radius, 2)); - } - inXRange(mouseX, useFinalPosition) { - return inRange$1(this, mouseX, 'x', useFinalPosition); - } - inYRange(mouseY, useFinalPosition) { - return inRange$1(this, mouseY, 'y', useFinalPosition); - } - getCenterPoint(useFinalPosition) { - const {x, y} = this.getProps(['x', 'y'], useFinalPosition); - return {x, y}; - } - size(options) { - options = options || this.options || {}; - let radius = options.radius || 0; - radius = Math.max(radius, radius && options.hoverRadius || 0); - const borderWidth = radius && options.borderWidth || 0; - return (radius + borderWidth) * 2; - } - draw(ctx, area) { - const options = this.options; - if (this.skip || options.radius < 0.1 || !_isPointInArea(this, area, this.size(options) / 2)) { - return; + inRange(mouseX, mouseY, useFinalPosition) { + const options = this.options; + const { x , y } = this.getProps([ + 'x', + 'y' + ], useFinalPosition); + return Math.pow(mouseX - x, 2) + Math.pow(mouseY - y, 2) < Math.pow(options.hitRadius + options.radius, 2); + } + inXRange(mouseX, useFinalPosition) { + return inRange$1(this, mouseX, 'x', useFinalPosition); + } + inYRange(mouseY, useFinalPosition) { + return inRange$1(this, mouseY, 'y', useFinalPosition); + } + getCenterPoint(useFinalPosition) { + const { x , y } = this.getProps([ + 'x', + 'y' + ], useFinalPosition); + return { + x, + y + }; + } + size(options) { + options = options || this.options || {}; + let radius = options.radius || 0; + radius = Math.max(radius, radius && options.hoverRadius || 0); + const borderWidth = radius && options.borderWidth || 0; + return (radius + borderWidth) * 2; + } + draw(ctx, area) { + const options = this.options; + if (this.skip || options.radius < 0.1 || !_isPointInArea(this, area, this.size(options) / 2)) { + return; + } + ctx.strokeStyle = options.borderColor; + ctx.lineWidth = options.borderWidth; + ctx.fillStyle = options.backgroundColor; + drawPoint(ctx, options, this.x, this.y); + } + getRange() { + const options = this.options || {}; + // @ts-expect-error Fallbacks should never be hit in practice + return options.radius + options.hitRadius; } - ctx.strokeStyle = options.borderColor; - ctx.lineWidth = options.borderWidth; - ctx.fillStyle = options.backgroundColor; - drawPoint(ctx, options, this.x, this.y); - } - getRange() { - const options = this.options || {}; - return options.radius + options.hitRadius; - } } -PointElement.id = 'point'; -PointElement.defaults = { - borderWidth: 1, - hitRadius: 1, - hoverBorderWidth: 1, - hoverRadius: 4, - pointStyle: 'circle', - radius: 3, - rotation: 0 -}; -PointElement.defaultRoutes = { - backgroundColor: 'backgroundColor', - borderColor: 'borderColor' -}; function getBarBounds(bar, useFinalPosition) { - const {x, y, base, width, height} = bar.getProps(['x', 'y', 'base', 'width', 'height'], useFinalPosition); - let left, right, top, bottom, half; - if (bar.horizontal) { - half = height / 2; - left = Math.min(x, base); - right = Math.max(x, base); - top = y - half; - bottom = y + half; - } else { - half = width / 2; - left = x - half; - right = x + half; - top = Math.min(y, base); - bottom = Math.max(y, base); - } - return {left, top, right, bottom}; + const { x , y , base , width , height } = bar.getProps([ + 'x', + 'y', + 'base', + 'width', + 'height' + ], useFinalPosition); + let left, right, top, bottom, half; + if (bar.horizontal) { + half = height / 2; + left = Math.min(x, base); + right = Math.max(x, base); + top = y - half; + bottom = y + half; + } else { + half = width / 2; + left = x - half; + right = x + half; + top = Math.min(y, base); + bottom = Math.max(y, base); + } + return { + left, + top, + right, + bottom + }; } function skipOrLimit(skip, value, min, max) { - return skip ? 0 : _limitValue(value, min, max); + return skip ? 0 : _limitValue(value, min, max); } function parseBorderWidth(bar, maxW, maxH) { - const value = bar.options.borderWidth; - const skip = bar.borderSkipped; - const o = toTRBL(value); - return { - t: skipOrLimit(skip.top, o.top, 0, maxH), - r: skipOrLimit(skip.right, o.right, 0, maxW), - b: skipOrLimit(skip.bottom, o.bottom, 0, maxH), - l: skipOrLimit(skip.left, o.left, 0, maxW) - }; + const value = bar.options.borderWidth; + const skip = bar.borderSkipped; + const o = toTRBL(value); + return { + t: skipOrLimit(skip.top, o.top, 0, maxH), + r: skipOrLimit(skip.right, o.right, 0, maxW), + b: skipOrLimit(skip.bottom, o.bottom, 0, maxH), + l: skipOrLimit(skip.left, o.left, 0, maxW) + }; } function parseBorderRadius(bar, maxW, maxH) { - const {enableBorderRadius} = bar.getProps(['enableBorderRadius']); - const value = bar.options.borderRadius; - const o = toTRBLCorners(value); - const maxR = Math.min(maxW, maxH); - const skip = bar.borderSkipped; - const enableBorder = enableBorderRadius || isObject(value); - return { - topLeft: skipOrLimit(!enableBorder || skip.top || skip.left, o.topLeft, 0, maxR), - topRight: skipOrLimit(!enableBorder || skip.top || skip.right, o.topRight, 0, maxR), - bottomLeft: skipOrLimit(!enableBorder || skip.bottom || skip.left, o.bottomLeft, 0, maxR), - bottomRight: skipOrLimit(!enableBorder || skip.bottom || skip.right, o.bottomRight, 0, maxR) - }; + const { enableBorderRadius } = bar.getProps([ + 'enableBorderRadius' + ]); + const value = bar.options.borderRadius; + const o = toTRBLCorners(value); + const maxR = Math.min(maxW, maxH); + const skip = bar.borderSkipped; + const enableBorder = enableBorderRadius || isObject(value); + return { + topLeft: skipOrLimit(!enableBorder || skip.top || skip.left, o.topLeft, 0, maxR), + topRight: skipOrLimit(!enableBorder || skip.top || skip.right, o.topRight, 0, maxR), + bottomLeft: skipOrLimit(!enableBorder || skip.bottom || skip.left, o.bottomLeft, 0, maxR), + bottomRight: skipOrLimit(!enableBorder || skip.bottom || skip.right, o.bottomRight, 0, maxR) + }; } function boundingRects(bar) { - const bounds = getBarBounds(bar); - const width = bounds.right - bounds.left; - const height = bounds.bottom - bounds.top; - const border = parseBorderWidth(bar, width / 2, height / 2); - const radius = parseBorderRadius(bar, width / 2, height / 2); - return { - outer: { - x: bounds.left, - y: bounds.top, - w: width, - h: height, - radius - }, - inner: { - x: bounds.left + border.l, - y: bounds.top + border.t, - w: width - border.l - border.r, - h: height - border.t - border.b, - radius: { - topLeft: Math.max(0, radius.topLeft - Math.max(border.t, border.l)), - topRight: Math.max(0, radius.topRight - Math.max(border.t, border.r)), - bottomLeft: Math.max(0, radius.bottomLeft - Math.max(border.b, border.l)), - bottomRight: Math.max(0, radius.bottomRight - Math.max(border.b, border.r)), - } - } - }; + const bounds = getBarBounds(bar); + const width = bounds.right - bounds.left; + const height = bounds.bottom - bounds.top; + const border = parseBorderWidth(bar, width / 2, height / 2); + const radius = parseBorderRadius(bar, width / 2, height / 2); + return { + outer: { + x: bounds.left, + y: bounds.top, + w: width, + h: height, + radius + }, + inner: { + x: bounds.left + border.l, + y: bounds.top + border.t, + w: width - border.l - border.r, + h: height - border.t - border.b, + radius: { + topLeft: Math.max(0, radius.topLeft - Math.max(border.t, border.l)), + topRight: Math.max(0, radius.topRight - Math.max(border.t, border.r)), + bottomLeft: Math.max(0, radius.bottomLeft - Math.max(border.b, border.l)), + bottomRight: Math.max(0, radius.bottomRight - Math.max(border.b, border.r)) + } + } + }; } function inRange(bar, x, y, useFinalPosition) { - const skipX = x === null; - const skipY = y === null; - const skipBoth = skipX && skipY; - const bounds = bar && !skipBoth && getBarBounds(bar, useFinalPosition); - return bounds - && (skipX || _isBetween(x, bounds.left, bounds.right)) - && (skipY || _isBetween(y, bounds.top, bounds.bottom)); + const skipX = x === null; + const skipY = y === null; + const skipBoth = skipX && skipY; + const bounds = bar && !skipBoth && getBarBounds(bar, useFinalPosition); + return bounds && (skipX || _isBetween(x, bounds.left, bounds.right)) && (skipY || _isBetween(y, bounds.top, bounds.bottom)); } function hasRadius(radius) { - return radius.topLeft || radius.topRight || radius.bottomLeft || radius.bottomRight; + return radius.topLeft || radius.topRight || radius.bottomLeft || radius.bottomRight; } -function addNormalRectPath(ctx, rect) { - ctx.rect(rect.x, rect.y, rect.w, rect.h); + function addNormalRectPath(ctx, rect) { + ctx.rect(rect.x, rect.y, rect.w, rect.h); } function inflateRect(rect, amount, refRect = {}) { - const x = rect.x !== refRect.x ? -amount : 0; - const y = rect.y !== refRect.y ? -amount : 0; - const w = (rect.x + rect.w !== refRect.x + refRect.w ? amount : 0) - x; - const h = (rect.y + rect.h !== refRect.y + refRect.h ? amount : 0) - y; - return { - x: rect.x + x, - y: rect.y + y, - w: rect.w + w, - h: rect.h + h, - radius: rect.radius - }; + const x = rect.x !== refRect.x ? -amount : 0; + const y = rect.y !== refRect.y ? -amount : 0; + const w = (rect.x + rect.w !== refRect.x + refRect.w ? amount : 0) - x; + const h = (rect.y + rect.h !== refRect.y + refRect.h ? amount : 0) - y; + return { + x: rect.x + x, + y: rect.y + y, + w: rect.w + w, + h: rect.h + h, + radius: rect.radius + }; } class BarElement extends Element { - constructor(cfg) { - super(); - this.options = undefined; - this.horizontal = undefined; - this.base = undefined; - this.width = undefined; - this.height = undefined; - this.inflateAmount = undefined; - if (cfg) { - Object.assign(this, cfg); - } - } - draw(ctx) { - const {inflateAmount, options: {borderColor, backgroundColor}} = this; - const {inner, outer} = boundingRects(this); - const addRectPath = hasRadius(outer.radius) ? addRoundedRectPath : addNormalRectPath; - ctx.save(); - if (outer.w !== inner.w || outer.h !== inner.h) { - ctx.beginPath(); - addRectPath(ctx, inflateRect(outer, inflateAmount, inner)); - ctx.clip(); - addRectPath(ctx, inflateRect(inner, -inflateAmount, outer)); - ctx.fillStyle = borderColor; - ctx.fill('evenodd'); - } - ctx.beginPath(); - addRectPath(ctx, inflateRect(inner, inflateAmount)); - ctx.fillStyle = backgroundColor; - ctx.fill(); - ctx.restore(); - } - inRange(mouseX, mouseY, useFinalPosition) { - return inRange(this, mouseX, mouseY, useFinalPosition); - } - inXRange(mouseX, useFinalPosition) { - return inRange(this, mouseX, null, useFinalPosition); - } - inYRange(mouseY, useFinalPosition) { - return inRange(this, null, mouseY, useFinalPosition); - } - getCenterPoint(useFinalPosition) { - const {x, y, base, horizontal} = this.getProps(['x', 'y', 'base', 'horizontal'], useFinalPosition); - return { - x: horizontal ? (x + base) / 2 : x, - y: horizontal ? y : (y + base) / 2 + static id = 'bar'; + static defaults = { + borderSkipped: 'start', + borderWidth: 0, + borderRadius: 0, + inflateAmount: 'auto', + pointStyle: undefined }; - } - getRange(axis) { - return axis === 'x' ? this.width / 2 : this.height / 2; - } + static defaultRoutes = { + backgroundColor: 'backgroundColor', + borderColor: 'borderColor' + }; + constructor(cfg){ + super(); + this.options = undefined; + this.horizontal = undefined; + this.base = undefined; + this.width = undefined; + this.height = undefined; + this.inflateAmount = undefined; + if (cfg) { + Object.assign(this, cfg); + } + } + draw(ctx) { + const { inflateAmount , options: { borderColor , backgroundColor } } = this; + const { inner , outer } = boundingRects(this); + const addRectPath = hasRadius(outer.radius) ? addRoundedRectPath : addNormalRectPath; + ctx.save(); + if (outer.w !== inner.w || outer.h !== inner.h) { + ctx.beginPath(); + addRectPath(ctx, inflateRect(outer, inflateAmount, inner)); + ctx.clip(); + addRectPath(ctx, inflateRect(inner, -inflateAmount, outer)); + ctx.fillStyle = borderColor; + ctx.fill('evenodd'); + } + ctx.beginPath(); + addRectPath(ctx, inflateRect(inner, inflateAmount)); + ctx.fillStyle = backgroundColor; + ctx.fill(); + ctx.restore(); + } + inRange(mouseX, mouseY, useFinalPosition) { + return inRange(this, mouseX, mouseY, useFinalPosition); + } + inXRange(mouseX, useFinalPosition) { + return inRange(this, mouseX, null, useFinalPosition); + } + inYRange(mouseY, useFinalPosition) { + return inRange(this, null, mouseY, useFinalPosition); + } + getCenterPoint(useFinalPosition) { + const { x , y , base , horizontal } = this.getProps([ + 'x', + 'y', + 'base', + 'horizontal' + ], useFinalPosition); + return { + x: horizontal ? (x + base) / 2 : x, + y: horizontal ? y : (y + base) / 2 + }; + } + getRange(axis) { + return axis === 'x' ? this.width / 2 : this.height / 2; + } } -BarElement.id = 'bar'; -BarElement.defaults = { - borderSkipped: 'start', - borderWidth: 0, - borderRadius: 0, - inflateAmount: 'auto', - pointStyle: undefined -}; -BarElement.defaultRoutes = { - backgroundColor: 'backgroundColor', - borderColor: 'borderColor' -}; var elements = /*#__PURE__*/Object.freeze({ __proto__: null, @@ -9626,3739 +10586,1508 @@ PointElement: PointElement, BarElement: BarElement }); -function lttbDecimation(data, start, count, availableWidth, options) { - const samples = options.samples || availableWidth; - if (samples >= count) { - return data.slice(start, start + count); - } - const decimated = []; - const bucketWidth = (count - 2) / (samples - 2); - let sampledIndex = 0; - const endIndex = start + count - 1; - let a = start; - let i, maxAreaPoint, maxArea, area, nextA; - decimated[sampledIndex++] = data[a]; - for (i = 0; i < samples - 2; i++) { - let avgX = 0; - let avgY = 0; - let j; - const avgRangeStart = Math.floor((i + 1) * bucketWidth) + 1 + start; - const avgRangeEnd = Math.min(Math.floor((i + 2) * bucketWidth) + 1, count) + start; - const avgRangeLength = avgRangeEnd - avgRangeStart; - for (j = avgRangeStart; j < avgRangeEnd; j++) { - avgX += data[j].x; - avgY += data[j].y; - } - avgX /= avgRangeLength; - avgY /= avgRangeLength; - const rangeOffs = Math.floor(i * bucketWidth) + 1 + start; - const rangeTo = Math.min(Math.floor((i + 1) * bucketWidth) + 1, count) + start; - const {x: pointAx, y: pointAy} = data[a]; - maxArea = area = -1; - for (j = rangeOffs; j < rangeTo; j++) { - area = 0.5 * Math.abs( - (pointAx - avgX) * (data[j].y - pointAy) - - (pointAx - data[j].x) * (avgY - pointAy) - ); - if (area > maxArea) { - maxArea = area; - maxAreaPoint = data[j]; - nextA = j; - } - } - decimated[sampledIndex++] = maxAreaPoint; - a = nextA; - } - decimated[sampledIndex++] = data[endIndex]; - return decimated; -} -function minMaxDecimation(data, start, count, availableWidth) { - let avgX = 0; - let countX = 0; - let i, point, x, y, prevX, minIndex, maxIndex, startIndex, minY, maxY; - const decimated = []; - const endIndex = start + count - 1; - const xMin = data[start].x; - const xMax = data[endIndex].x; - const dx = xMax - xMin; - for (i = start; i < start + count; ++i) { - point = data[i]; - x = (point.x - xMin) / dx * availableWidth; - y = point.y; - const truncX = x | 0; - if (truncX === prevX) { - if (y < minY) { - minY = y; - minIndex = i; - } else if (y > maxY) { - maxY = y; - maxIndex = i; - } - avgX = (countX * avgX + point.x) / ++countX; - } else { - const lastIndex = i - 1; - if (!isNullOrUndef(minIndex) && !isNullOrUndef(maxIndex)) { - const intermediateIndex1 = Math.min(minIndex, maxIndex); - const intermediateIndex2 = Math.max(minIndex, maxIndex); - if (intermediateIndex1 !== startIndex && intermediateIndex1 !== lastIndex) { - decimated.push({ - ...data[intermediateIndex1], - x: avgX, - }); - } - if (intermediateIndex2 !== startIndex && intermediateIndex2 !== lastIndex) { - decimated.push({ - ...data[intermediateIndex2], - x: avgX - }); - } - } - if (i > 0 && lastIndex !== startIndex) { - decimated.push(data[lastIndex]); - } - decimated.push(point); - prevX = truncX; - countX = 0; - minY = maxY = y; - minIndex = maxIndex = startIndex = i; - } - } - return decimated; -} -function cleanDecimatedDataset(dataset) { - if (dataset._decimated) { - const data = dataset._data; - delete dataset._decimated; - delete dataset._data; - Object.defineProperty(dataset, 'data', {value: data}); - } -} -function cleanDecimatedData(chart) { - chart.data.datasets.forEach((dataset) => { - cleanDecimatedDataset(dataset); - }); -} -function getStartAndCountOfVisiblePointsSimplified(meta, points) { - const pointCount = points.length; - let start = 0; - let count; - const {iScale} = meta; - const {min, max, minDefined, maxDefined} = iScale.getUserBounds(); - if (minDefined) { - start = _limitValue(_lookupByKey(points, iScale.axis, min).lo, 0, pointCount - 1); - } - if (maxDefined) { - count = _limitValue(_lookupByKey(points, iScale.axis, max).hi + 1, start, pointCount) - start; - } else { - count = pointCount - start; - } - return {start, count}; -} -var plugin_decimation = { - id: 'decimation', - defaults: { - algorithm: 'min-max', - enabled: false, - }, - beforeElementsUpdate: (chart, args, options) => { - if (!options.enabled) { - cleanDecimatedData(chart); - return; - } - const availableWidth = chart.width; - chart.data.datasets.forEach((dataset, datasetIndex) => { - const {_data, indexAxis} = dataset; - const meta = chart.getDatasetMeta(datasetIndex); - const data = _data || dataset.data; - if (resolve([indexAxis, chart.options.indexAxis]) === 'y') { - return; - } - if (!meta.controller.supportsDecimation) { - return; - } - const xAxis = chart.scales[meta.xAxisID]; - if (xAxis.type !== 'linear' && xAxis.type !== 'time') { - return; - } - if (chart.options.parsing) { - return; - } - let {start, count} = getStartAndCountOfVisiblePointsSimplified(meta, data); - const threshold = options.threshold || 4 * availableWidth; - if (count <= threshold) { - cleanDecimatedDataset(dataset); - return; - } - if (isNullOrUndef(_data)) { - dataset._data = data; - delete dataset.data; - Object.defineProperty(dataset, 'data', { - configurable: true, - enumerable: true, - get: function() { - return this._decimated; - }, - set: function(d) { - this._data = d; - } +const addIfString = (labels, raw, index, addedLabels)=>{ + if (typeof raw === 'string') { + index = labels.push(raw) - 1; + addedLabels.unshift({ + index, + label: raw }); - } - let decimated; - switch (options.algorithm) { - case 'lttb': - decimated = lttbDecimation(data, start, count, availableWidth, options); - break; - case 'min-max': - decimated = minMaxDecimation(data, start, count, availableWidth); - break; - default: - throw new Error(`Unsupported decimation algorithm '${options.algorithm}'`); - } - dataset._decimated = decimated; - }); - }, - destroy(chart) { - cleanDecimatedData(chart); - } -}; - -function _segments(line, target, property) { - const segments = line.segments; - const points = line.points; - const tpoints = target.points; - const parts = []; - for (const segment of segments) { - let {start, end} = segment; - end = _findSegmentEnd(start, end, points); - const bounds = _getBounds(property, points[start], points[end], segment.loop); - if (!target.segments) { - parts.push({ - source: segment, - target: bounds, - start: points[start], - end: points[end] - }); - continue; + } else if (isNaN(raw)) { + index = null; } - const targetSegments = _boundSegments(target, bounds); - for (const tgt of targetSegments) { - const subBounds = _getBounds(property, tpoints[tgt.start], tpoints[tgt.end], tgt.loop); - const fillSources = _boundSegment(segment, points, subBounds); - for (const fillSource of fillSources) { - parts.push({ - source: fillSource, - target: tgt, - start: { - [property]: _getEdge(bounds, subBounds, 'start', Math.max) - }, - end: { - [property]: _getEdge(bounds, subBounds, 'end', Math.min) - } - }); - } - } - } - return parts; -} -function _getBounds(property, first, last, loop) { - if (loop) { - return; - } - let start = first[property]; - let end = last[property]; - if (property === 'angle') { - start = _normalizeAngle(start); - end = _normalizeAngle(end); - } - return {property, start, end}; -} -function _pointsFromSegments(boundary, line) { - const {x = null, y = null} = boundary || {}; - const linePoints = line.points; - const points = []; - line.segments.forEach(({start, end}) => { - end = _findSegmentEnd(start, end, linePoints); - const first = linePoints[start]; - const last = linePoints[end]; - if (y !== null) { - points.push({x: first.x, y}); - points.push({x: last.x, y}); - } else if (x !== null) { - points.push({x, y: first.y}); - points.push({x, y: last.y}); - } - }); - return points; -} -function _findSegmentEnd(start, end, points) { - for (;end > start; end--) { - const point = points[end]; - if (!isNaN(point.x) && !isNaN(point.y)) { - break; - } - } - return end; -} -function _getEdge(a, b, prop, fn) { - if (a && b) { - return fn(a[prop], b[prop]); - } - return a ? a[prop] : b ? b[prop] : 0; -} - -function _createBoundaryLine(boundary, line) { - let points = []; - let _loop = false; - if (isArray(boundary)) { - _loop = true; - points = boundary; - } else { - points = _pointsFromSegments(boundary, line); - } - return points.length ? new LineElement({ - points, - options: {tension: 0}, - _loop, - _fullLoop: _loop - }) : null; -} - -function _resolveTarget(sources, index, propagate) { - const source = sources[index]; - let fill = source.fill; - const visited = [index]; - let target; - if (!propagate) { - return fill; - } - while (fill !== false && visited.indexOf(fill) === -1) { - if (!isNumberFinite(fill)) { - return fill; - } - target = sources[fill]; - if (!target) { - return false; - } - if (target.visible) { - return fill; - } - visited.push(fill); - fill = target.fill; - } - return false; -} -function _decodeFill(line, index, count) { - const fill = parseFillOption(line); - if (isObject(fill)) { - return isNaN(fill.value) ? false : fill; - } - let target = parseFloat(fill); - if (isNumberFinite(target) && Math.floor(target) === target) { - return decodeTargetIndex(fill[0], index, target, count); - } - return ['origin', 'start', 'end', 'stack', 'shape'].indexOf(fill) >= 0 && fill; -} -function decodeTargetIndex(firstCh, index, target, count) { - if (firstCh === '-' || firstCh === '+') { - target = index + target; - } - if (target === index || target < 0 || target >= count) { - return false; - } - return target; -} -function _getTargetPixel(fill, scale) { - let pixel = null; - if (fill === 'start') { - pixel = scale.bottom; - } else if (fill === 'end') { - pixel = scale.top; - } else if (isObject(fill)) { - pixel = scale.getPixelForValue(fill.value); - } else if (scale.getBasePixel) { - pixel = scale.getBasePixel(); - } - return pixel; -} -function _getTargetValue(fill, scale, startValue) { - let value; - if (fill === 'start') { - value = startValue; - } else if (fill === 'end') { - value = scale.options.reverse ? scale.min : scale.max; - } else if (isObject(fill)) { - value = fill.value; - } else { - value = scale.getBaseValue(); - } - return value; -} -function parseFillOption(line) { - const options = line.options; - const fillOption = options.fill; - let fill = valueOrDefault(fillOption && fillOption.target, fillOption); - if (fill === undefined) { - fill = !!options.backgroundColor; - } - if (fill === false || fill === null) { - return false; - } - if (fill === true) { - return 'origin'; - } - return fill; -} - -function _buildStackLine(source) { - const {scale, index, line} = source; - const points = []; - const segments = line.segments; - const sourcePoints = line.points; - const linesBelow = getLinesBelow(scale, index); - linesBelow.push(_createBoundaryLine({x: null, y: scale.bottom}, line)); - for (let i = 0; i < segments.length; i++) { - const segment = segments[i]; - for (let j = segment.start; j <= segment.end; j++) { - addPointsBelow(points, sourcePoints[j], linesBelow); - } - } - return new LineElement({points, options: {}}); -} -function getLinesBelow(scale, index) { - const below = []; - const metas = scale.getMatchingVisibleMetas('line'); - for (let i = 0; i < metas.length; i++) { - const meta = metas[i]; - if (meta.index === index) { - break; - } - if (!meta.hidden) { - below.unshift(meta.dataset); - } - } - return below; -} -function addPointsBelow(points, sourcePoint, linesBelow) { - const postponed = []; - for (let j = 0; j < linesBelow.length; j++) { - const line = linesBelow[j]; - const {first, last, point} = findPoint(line, sourcePoint, 'x'); - if (!point || (first && last)) { - continue; - } - if (first) { - postponed.unshift(point); - } else { - points.push(point); - if (!last) { - break; - } - } - } - points.push(...postponed); -} -function findPoint(line, sourcePoint, property) { - const point = line.interpolate(sourcePoint, property); - if (!point) { - return {}; - } - const pointValue = point[property]; - const segments = line.segments; - const linePoints = line.points; - let first = false; - let last = false; - for (let i = 0; i < segments.length; i++) { - const segment = segments[i]; - const firstValue = linePoints[segment.start][property]; - const lastValue = linePoints[segment.end][property]; - if (_isBetween(pointValue, firstValue, lastValue)) { - first = pointValue === firstValue; - last = pointValue === lastValue; - break; - } - } - return {first, last, point}; -} - -class simpleArc { - constructor(opts) { - this.x = opts.x; - this.y = opts.y; - this.radius = opts.radius; - } - pathSegment(ctx, bounds, opts) { - const {x, y, radius} = this; - bounds = bounds || {start: 0, end: TAU}; - ctx.arc(x, y, radius, bounds.end, bounds.start, true); - return !opts.bounds; - } - interpolate(point) { - const {x, y, radius} = this; - const angle = point.angle; - return { - x: x + Math.cos(angle) * radius, - y: y + Math.sin(angle) * radius, - angle - }; - } -} - -function _getTarget(source) { - const {chart, fill, line} = source; - if (isNumberFinite(fill)) { - return getLineByIndex(chart, fill); - } - if (fill === 'stack') { - return _buildStackLine(source); - } - if (fill === 'shape') { - return true; - } - const boundary = computeBoundary(source); - if (boundary instanceof simpleArc) { - return boundary; - } - return _createBoundaryLine(boundary, line); -} -function getLineByIndex(chart, index) { - const meta = chart.getDatasetMeta(index); - const visible = meta && chart.isDatasetVisible(index); - return visible ? meta.dataset : null; -} -function computeBoundary(source) { - const scale = source.scale || {}; - if (scale.getPointPositionForValue) { - return computeCircularBoundary(source); - } - return computeLinearBoundary(source); -} -function computeLinearBoundary(source) { - const {scale = {}, fill} = source; - const pixel = _getTargetPixel(fill, scale); - if (isNumberFinite(pixel)) { - const horizontal = scale.isHorizontal(); - return { - x: horizontal ? pixel : null, - y: horizontal ? null : pixel - }; - } - return null; -} -function computeCircularBoundary(source) { - const {scale, fill} = source; - const options = scale.options; - const length = scale.getLabels().length; - const start = options.reverse ? scale.max : scale.min; - const value = _getTargetValue(fill, scale, start); - const target = []; - if (options.grid.circular) { - const center = scale.getPointPositionForValue(0, start); - return new simpleArc({ - x: center.x, - y: center.y, - radius: scale.getDistanceFromCenterForValue(value) - }); - } - for (let i = 0; i < length; ++i) { - target.push(scale.getPointPositionForValue(i, value)); - } - return target; -} - -function _drawfill(ctx, source, area) { - const target = _getTarget(source); - const {line, scale, axis} = source; - const lineOpts = line.options; - const fillOption = lineOpts.fill; - const color = lineOpts.backgroundColor; - const {above = color, below = color} = fillOption || {}; - if (target && line.points.length) { - clipArea(ctx, area); - doFill(ctx, {line, target, above, below, area, scale, axis}); - unclipArea(ctx); - } -} -function doFill(ctx, cfg) { - const {line, target, above, below, area, scale} = cfg; - const property = line._loop ? 'angle' : cfg.axis; - ctx.save(); - if (property === 'x' && below !== above) { - clipVertical(ctx, target, area.top); - fill(ctx, {line, target, color: above, scale, property}); - ctx.restore(); - ctx.save(); - clipVertical(ctx, target, area.bottom); - } - fill(ctx, {line, target, color: below, scale, property}); - ctx.restore(); -} -function clipVertical(ctx, target, clipY) { - const {segments, points} = target; - let first = true; - let lineLoop = false; - ctx.beginPath(); - for (const segment of segments) { - const {start, end} = segment; - const firstPoint = points[start]; - const lastPoint = points[_findSegmentEnd(start, end, points)]; - if (first) { - ctx.moveTo(firstPoint.x, firstPoint.y); - first = false; - } else { - ctx.lineTo(firstPoint.x, clipY); - ctx.lineTo(firstPoint.x, firstPoint.y); - } - lineLoop = !!target.pathSegment(ctx, segment, {move: lineLoop}); - if (lineLoop) { - ctx.closePath(); - } else { - ctx.lineTo(lastPoint.x, clipY); - } - } - ctx.lineTo(target.first().x, clipY); - ctx.closePath(); - ctx.clip(); -} -function fill(ctx, cfg) { - const {line, target, property, color, scale} = cfg; - const segments = _segments(line, target, property); - for (const {source: src, target: tgt, start, end} of segments) { - const {style: {backgroundColor = color} = {}} = src; - const notShape = target !== true; - ctx.save(); - ctx.fillStyle = backgroundColor; - clipBounds(ctx, scale, notShape && _getBounds(property, start, end)); - ctx.beginPath(); - const lineLoop = !!line.pathSegment(ctx, src); - let loop; - if (notShape) { - if (lineLoop) { - ctx.closePath(); - } else { - interpolatedLineTo(ctx, target, end, property); - } - const targetLoop = !!target.pathSegment(ctx, tgt, {move: lineLoop, reverse: true}); - loop = lineLoop && targetLoop; - if (!loop) { - interpolatedLineTo(ctx, target, start, property); - } - } - ctx.closePath(); - ctx.fill(loop ? 'evenodd' : 'nonzero'); - ctx.restore(); - } -} -function clipBounds(ctx, scale, bounds) { - const {top, bottom} = scale.chart.chartArea; - const {property, start, end} = bounds || {}; - if (property === 'x') { - ctx.beginPath(); - ctx.rect(start, top, end - start, bottom - top); - ctx.clip(); - } -} -function interpolatedLineTo(ctx, target, point, property) { - const interpolatedPoint = target.interpolate(point, property); - if (interpolatedPoint) { - ctx.lineTo(interpolatedPoint.x, interpolatedPoint.y); - } -} - -var index = { - id: 'filler', - afterDatasetsUpdate(chart, _args, options) { - const count = (chart.data.datasets || []).length; - const sources = []; - let meta, i, line, source; - for (i = 0; i < count; ++i) { - meta = chart.getDatasetMeta(i); - line = meta.dataset; - source = null; - if (line && line.options && line instanceof LineElement) { - source = { - visible: chart.isDatasetVisible(i), - index: i, - fill: _decodeFill(line, i, count), - chart, - axis: meta.controller.options.indexAxis, - scale: meta.vScale, - line, - }; - } - meta.$filler = source; - sources.push(source); - } - for (i = 0; i < count; ++i) { - source = sources[i]; - if (!source || source.fill === false) { - continue; - } - source.fill = _resolveTarget(sources, i, options.propagate); - } - }, - beforeDraw(chart, _args, options) { - const draw = options.drawTime === 'beforeDraw'; - const metasets = chart.getSortedVisibleDatasetMetas(); - const area = chart.chartArea; - for (let i = metasets.length - 1; i >= 0; --i) { - const source = metasets[i].$filler; - if (!source) { - continue; - } - source.line.updateControlPoints(area, source.axis); - if (draw) { - _drawfill(chart.ctx, source, area); - } - } - }, - beforeDatasetsDraw(chart, _args, options) { - if (options.drawTime !== 'beforeDatasetsDraw') { - return; - } - const metasets = chart.getSortedVisibleDatasetMetas(); - for (let i = metasets.length - 1; i >= 0; --i) { - const source = metasets[i].$filler; - if (source) { - _drawfill(chart.ctx, source, chart.chartArea); - } - } - }, - beforeDatasetDraw(chart, args, options) { - const source = args.meta.$filler; - if (!source || source.fill === false || options.drawTime !== 'beforeDatasetDraw') { - return; - } - _drawfill(chart.ctx, source, chart.chartArea); - }, - defaults: { - propagate: true, - drawTime: 'beforeDatasetDraw' - } -}; - -const getBoxSize = (labelOpts, fontSize) => { - let {boxHeight = fontSize, boxWidth = fontSize} = labelOpts; - if (labelOpts.usePointStyle) { - boxHeight = Math.min(boxHeight, fontSize); - boxWidth = Math.min(boxWidth, fontSize); - } - return { - boxWidth, - boxHeight, - itemHeight: Math.max(fontSize, boxHeight) - }; -}; -const itemsEqual = (a, b) => a !== null && b !== null && a.datasetIndex === b.datasetIndex && a.index === b.index; -class Legend extends Element { - constructor(config) { - super(); - this._added = false; - this.legendHitBoxes = []; - this._hoveredItem = null; - this.doughnutMode = false; - this.chart = config.chart; - this.options = config.options; - this.ctx = config.ctx; - this.legendItems = undefined; - this.columnSizes = undefined; - this.lineWidths = undefined; - this.maxHeight = undefined; - this.maxWidth = undefined; - this.top = undefined; - this.bottom = undefined; - this.left = undefined; - this.right = undefined; - this.height = undefined; - this.width = undefined; - this._margins = undefined; - this.position = undefined; - this.weight = undefined; - this.fullSize = undefined; - } - update(maxWidth, maxHeight, margins) { - this.maxWidth = maxWidth; - this.maxHeight = maxHeight; - this._margins = margins; - this.setDimensions(); - this.buildLabels(); - this.fit(); - } - setDimensions() { - if (this.isHorizontal()) { - this.width = this.maxWidth; - this.left = this._margins.left; - this.right = this.width; - } else { - this.height = this.maxHeight; - this.top = this._margins.top; - this.bottom = this.height; - } - } - buildLabels() { - const labelOpts = this.options.labels || {}; - let legendItems = callback(labelOpts.generateLabels, [this.chart], this) || []; - if (labelOpts.filter) { - legendItems = legendItems.filter((item) => labelOpts.filter(item, this.chart.data)); - } - if (labelOpts.sort) { - legendItems = legendItems.sort((a, b) => labelOpts.sort(a, b, this.chart.data)); - } - if (this.options.reverse) { - legendItems.reverse(); - } - this.legendItems = legendItems; - } - fit() { - const {options, ctx} = this; - if (!options.display) { - this.width = this.height = 0; - return; - } - const labelOpts = options.labels; - const labelFont = toFont(labelOpts.font); - const fontSize = labelFont.size; - const titleHeight = this._computeTitleHeight(); - const {boxWidth, itemHeight} = getBoxSize(labelOpts, fontSize); - let width, height; - ctx.font = labelFont.string; - if (this.isHorizontal()) { - width = this.maxWidth; - height = this._fitRows(titleHeight, fontSize, boxWidth, itemHeight) + 10; - } else { - height = this.maxHeight; - width = this._fitCols(titleHeight, fontSize, boxWidth, itemHeight) + 10; - } - this.width = Math.min(width, options.maxWidth || this.maxWidth); - this.height = Math.min(height, options.maxHeight || this.maxHeight); - } - _fitRows(titleHeight, fontSize, boxWidth, itemHeight) { - const {ctx, maxWidth, options: {labels: {padding}}} = this; - const hitboxes = this.legendHitBoxes = []; - const lineWidths = this.lineWidths = [0]; - const lineHeight = itemHeight + padding; - let totalHeight = titleHeight; - ctx.textAlign = 'left'; - ctx.textBaseline = 'middle'; - let row = -1; - let top = -lineHeight; - this.legendItems.forEach((legendItem, i) => { - const itemWidth = boxWidth + (fontSize / 2) + ctx.measureText(legendItem.text).width; - if (i === 0 || lineWidths[lineWidths.length - 1] + itemWidth + 2 * padding > maxWidth) { - totalHeight += lineHeight; - lineWidths[lineWidths.length - (i > 0 ? 0 : 1)] = 0; - top += lineHeight; - row++; - } - hitboxes[i] = {left: 0, top, row, width: itemWidth, height: itemHeight}; - lineWidths[lineWidths.length - 1] += itemWidth + padding; - }); - return totalHeight; - } - _fitCols(titleHeight, fontSize, boxWidth, itemHeight) { - const {ctx, maxHeight, options: {labels: {padding}}} = this; - const hitboxes = this.legendHitBoxes = []; - const columnSizes = this.columnSizes = []; - const heightLimit = maxHeight - titleHeight; - let totalWidth = padding; - let currentColWidth = 0; - let currentColHeight = 0; - let left = 0; - let col = 0; - this.legendItems.forEach((legendItem, i) => { - const itemWidth = boxWidth + (fontSize / 2) + ctx.measureText(legendItem.text).width; - if (i > 0 && currentColHeight + itemHeight + 2 * padding > heightLimit) { - totalWidth += currentColWidth + padding; - columnSizes.push({width: currentColWidth, height: currentColHeight}); - left += currentColWidth + padding; - col++; - currentColWidth = currentColHeight = 0; - } - hitboxes[i] = {left, top: currentColHeight, col, width: itemWidth, height: itemHeight}; - currentColWidth = Math.max(currentColWidth, itemWidth); - currentColHeight += itemHeight + padding; - }); - totalWidth += currentColWidth; - columnSizes.push({width: currentColWidth, height: currentColHeight}); - return totalWidth; - } - adjustHitBoxes() { - if (!this.options.display) { - return; - } - const titleHeight = this._computeTitleHeight(); - const {legendHitBoxes: hitboxes, options: {align, labels: {padding}, rtl}} = this; - const rtlHelper = getRtlAdapter(rtl, this.left, this.width); - if (this.isHorizontal()) { - let row = 0; - let left = _alignStartEnd(align, this.left + padding, this.right - this.lineWidths[row]); - for (const hitbox of hitboxes) { - if (row !== hitbox.row) { - row = hitbox.row; - left = _alignStartEnd(align, this.left + padding, this.right - this.lineWidths[row]); - } - hitbox.top += this.top + titleHeight + padding; - hitbox.left = rtlHelper.leftForLtr(rtlHelper.x(left), hitbox.width); - left += hitbox.width + padding; - } - } else { - let col = 0; - let top = _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - this.columnSizes[col].height); - for (const hitbox of hitboxes) { - if (hitbox.col !== col) { - col = hitbox.col; - top = _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - this.columnSizes[col].height); - } - hitbox.top = top; - hitbox.left += this.left + padding; - hitbox.left = rtlHelper.leftForLtr(rtlHelper.x(hitbox.left), hitbox.width); - top += hitbox.height + padding; - } - } - } - isHorizontal() { - return this.options.position === 'top' || this.options.position === 'bottom'; - } - draw() { - if (this.options.display) { - const ctx = this.ctx; - clipArea(ctx, this); - this._draw(); - unclipArea(ctx); - } - } - _draw() { - const {options: opts, columnSizes, lineWidths, ctx} = this; - const {align, labels: labelOpts} = opts; - const defaultColor = defaults.color; - const rtlHelper = getRtlAdapter(opts.rtl, this.left, this.width); - const labelFont = toFont(labelOpts.font); - const {color: fontColor, padding} = labelOpts; - const fontSize = labelFont.size; - const halfFontSize = fontSize / 2; - let cursor; - this.drawTitle(); - ctx.textAlign = rtlHelper.textAlign('left'); - ctx.textBaseline = 'middle'; - ctx.lineWidth = 0.5; - ctx.font = labelFont.string; - const {boxWidth, boxHeight, itemHeight} = getBoxSize(labelOpts, fontSize); - const drawLegendBox = function(x, y, legendItem) { - if (isNaN(boxWidth) || boxWidth <= 0 || isNaN(boxHeight) || boxHeight < 0) { - return; - } - ctx.save(); - const lineWidth = valueOrDefault(legendItem.lineWidth, 1); - ctx.fillStyle = valueOrDefault(legendItem.fillStyle, defaultColor); - ctx.lineCap = valueOrDefault(legendItem.lineCap, 'butt'); - ctx.lineDashOffset = valueOrDefault(legendItem.lineDashOffset, 0); - ctx.lineJoin = valueOrDefault(legendItem.lineJoin, 'miter'); - ctx.lineWidth = lineWidth; - ctx.strokeStyle = valueOrDefault(legendItem.strokeStyle, defaultColor); - ctx.setLineDash(valueOrDefault(legendItem.lineDash, [])); - if (labelOpts.usePointStyle) { - const drawOptions = { - radius: boxWidth * Math.SQRT2 / 2, - pointStyle: legendItem.pointStyle, - rotation: legendItem.rotation, - borderWidth: lineWidth - }; - const centerX = rtlHelper.xPlus(x, boxWidth / 2); - const centerY = y + halfFontSize; - drawPoint(ctx, drawOptions, centerX, centerY); - } else { - const yBoxTop = y + Math.max((fontSize - boxHeight) / 2, 0); - const xBoxLeft = rtlHelper.leftForLtr(x, boxWidth); - const borderRadius = toTRBLCorners(legendItem.borderRadius); - ctx.beginPath(); - if (Object.values(borderRadius).some(v => v !== 0)) { - addRoundedRectPath(ctx, { - x: xBoxLeft, - y: yBoxTop, - w: boxWidth, - h: boxHeight, - radius: borderRadius, - }); - } else { - ctx.rect(xBoxLeft, yBoxTop, boxWidth, boxHeight); - } - ctx.fill(); - if (lineWidth !== 0) { - ctx.stroke(); - } - } - ctx.restore(); - }; - const fillText = function(x, y, legendItem) { - renderText(ctx, legendItem.text, x, y + (itemHeight / 2), labelFont, { - strikethrough: legendItem.hidden, - textAlign: rtlHelper.textAlign(legendItem.textAlign) - }); - }; - const isHorizontal = this.isHorizontal(); - const titleHeight = this._computeTitleHeight(); - if (isHorizontal) { - cursor = { - x: _alignStartEnd(align, this.left + padding, this.right - lineWidths[0]), - y: this.top + padding + titleHeight, - line: 0 - }; - } else { - cursor = { - x: this.left + padding, - y: _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - columnSizes[0].height), - line: 0 - }; - } - overrideTextDirection(this.ctx, opts.textDirection); - const lineHeight = itemHeight + padding; - this.legendItems.forEach((legendItem, i) => { - ctx.strokeStyle = legendItem.fontColor || fontColor; - ctx.fillStyle = legendItem.fontColor || fontColor; - const textWidth = ctx.measureText(legendItem.text).width; - const textAlign = rtlHelper.textAlign(legendItem.textAlign || (legendItem.textAlign = labelOpts.textAlign)); - const width = boxWidth + halfFontSize + textWidth; - let x = cursor.x; - let y = cursor.y; - rtlHelper.setWidth(this.width); - if (isHorizontal) { - if (i > 0 && x + width + padding > this.right) { - y = cursor.y += lineHeight; - cursor.line++; - x = cursor.x = _alignStartEnd(align, this.left + padding, this.right - lineWidths[cursor.line]); - } - } else if (i > 0 && y + lineHeight > this.bottom) { - x = cursor.x = x + columnSizes[cursor.line].width + padding; - cursor.line++; - y = cursor.y = _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - columnSizes[cursor.line].height); - } - const realX = rtlHelper.x(x); - drawLegendBox(realX, y, legendItem); - x = _textX(textAlign, x + boxWidth + halfFontSize, isHorizontal ? x + width : this.right, opts.rtl); - fillText(rtlHelper.x(x), y, legendItem); - if (isHorizontal) { - cursor.x += width + padding; - } else { - cursor.y += lineHeight; - } - }); - restoreTextDirection(this.ctx, opts.textDirection); - } - drawTitle() { - const opts = this.options; - const titleOpts = opts.title; - const titleFont = toFont(titleOpts.font); - const titlePadding = toPadding(titleOpts.padding); - if (!titleOpts.display) { - return; - } - const rtlHelper = getRtlAdapter(opts.rtl, this.left, this.width); - const ctx = this.ctx; - const position = titleOpts.position; - const halfFontSize = titleFont.size / 2; - const topPaddingPlusHalfFontSize = titlePadding.top + halfFontSize; - let y; - let left = this.left; - let maxWidth = this.width; - if (this.isHorizontal()) { - maxWidth = Math.max(...this.lineWidths); - y = this.top + topPaddingPlusHalfFontSize; - left = _alignStartEnd(opts.align, left, this.right - maxWidth); - } else { - const maxHeight = this.columnSizes.reduce((acc, size) => Math.max(acc, size.height), 0); - y = topPaddingPlusHalfFontSize + _alignStartEnd(opts.align, this.top, this.bottom - maxHeight - opts.labels.padding - this._computeTitleHeight()); - } - const x = _alignStartEnd(position, left, left + maxWidth); - ctx.textAlign = rtlHelper.textAlign(_toLeftRightCenter(position)); - ctx.textBaseline = 'middle'; - ctx.strokeStyle = titleOpts.color; - ctx.fillStyle = titleOpts.color; - ctx.font = titleFont.string; - renderText(ctx, titleOpts.text, x, y, titleFont); - } - _computeTitleHeight() { - const titleOpts = this.options.title; - const titleFont = toFont(titleOpts.font); - const titlePadding = toPadding(titleOpts.padding); - return titleOpts.display ? titleFont.lineHeight + titlePadding.height : 0; - } - _getLegendItemAt(x, y) { - let i, hitBox, lh; - if (_isBetween(x, this.left, this.right) - && _isBetween(y, this.top, this.bottom)) { - lh = this.legendHitBoxes; - for (i = 0; i < lh.length; ++i) { - hitBox = lh[i]; - if (_isBetween(x, hitBox.left, hitBox.left + hitBox.width) - && _isBetween(y, hitBox.top, hitBox.top + hitBox.height)) { - return this.legendItems[i]; - } - } - } - return null; - } - handleEvent(e) { - const opts = this.options; - if (!isListened(e.type, opts)) { - return; - } - const hoveredItem = this._getLegendItemAt(e.x, e.y); - if (e.type === 'mousemove' || e.type === 'mouseout') { - const previous = this._hoveredItem; - const sameItem = itemsEqual(previous, hoveredItem); - if (previous && !sameItem) { - callback(opts.onLeave, [e, previous, this], this); - } - this._hoveredItem = hoveredItem; - if (hoveredItem && !sameItem) { - callback(opts.onHover, [e, hoveredItem, this], this); - } - } else if (hoveredItem) { - callback(opts.onClick, [e, hoveredItem, this], this); - } - } -} -function isListened(type, opts) { - if ((type === 'mousemove' || type === 'mouseout') && (opts.onHover || opts.onLeave)) { - return true; - } - if (opts.onClick && (type === 'click' || type === 'mouseup')) { - return true; - } - return false; -} -var plugin_legend = { - id: 'legend', - _element: Legend, - start(chart, _args, options) { - const legend = chart.legend = new Legend({ctx: chart.ctx, options, chart}); - layouts.configure(chart, legend, options); - layouts.addBox(chart, legend); - }, - stop(chart) { - layouts.removeBox(chart, chart.legend); - delete chart.legend; - }, - beforeUpdate(chart, _args, options) { - const legend = chart.legend; - layouts.configure(chart, legend, options); - legend.options = options; - }, - afterUpdate(chart) { - const legend = chart.legend; - legend.buildLabels(); - legend.adjustHitBoxes(); - }, - afterEvent(chart, args) { - if (!args.replay) { - chart.legend.handleEvent(args.event); - } - }, - defaults: { - display: true, - position: 'top', - align: 'center', - fullSize: true, - reverse: false, - weight: 1000, - onClick(e, legendItem, legend) { - const index = legendItem.datasetIndex; - const ci = legend.chart; - if (ci.isDatasetVisible(index)) { - ci.hide(index); - legendItem.hidden = true; - } else { - ci.show(index); - legendItem.hidden = false; - } - }, - onHover: null, - onLeave: null, - labels: { - color: (ctx) => ctx.chart.options.color, - boxWidth: 40, - padding: 10, - generateLabels(chart) { - const datasets = chart.data.datasets; - const {labels: {usePointStyle, pointStyle, textAlign, color}} = chart.legend.options; - return chart._getSortedDatasetMetas().map((meta) => { - const style = meta.controller.getStyle(usePointStyle ? 0 : undefined); - const borderWidth = toPadding(style.borderWidth); - return { - text: datasets[meta.index].label, - fillStyle: style.backgroundColor, - fontColor: color, - hidden: !meta.visible, - lineCap: style.borderCapStyle, - lineDash: style.borderDash, - lineDashOffset: style.borderDashOffset, - lineJoin: style.borderJoinStyle, - lineWidth: (borderWidth.width + borderWidth.height) / 4, - strokeStyle: style.borderColor, - pointStyle: pointStyle || style.pointStyle, - rotation: style.rotation, - textAlign: textAlign || style.textAlign, - borderRadius: 0, - datasetIndex: meta.index - }; - }, this); - } - }, - title: { - color: (ctx) => ctx.chart.options.color, - display: false, - position: 'center', - text: '', - } - }, - descriptors: { - _scriptable: (name) => !name.startsWith('on'), - labels: { - _scriptable: (name) => !['generateLabels', 'filter', 'sort'].includes(name), - } - }, -}; - -class Title extends Element { - constructor(config) { - super(); - this.chart = config.chart; - this.options = config.options; - this.ctx = config.ctx; - this._padding = undefined; - this.top = undefined; - this.bottom = undefined; - this.left = undefined; - this.right = undefined; - this.width = undefined; - this.height = undefined; - this.position = undefined; - this.weight = undefined; - this.fullSize = undefined; - } - update(maxWidth, maxHeight) { - const opts = this.options; - this.left = 0; - this.top = 0; - if (!opts.display) { - this.width = this.height = this.right = this.bottom = 0; - return; - } - this.width = this.right = maxWidth; - this.height = this.bottom = maxHeight; - const lineCount = isArray(opts.text) ? opts.text.length : 1; - this._padding = toPadding(opts.padding); - const textSize = lineCount * toFont(opts.font).lineHeight + this._padding.height; - if (this.isHorizontal()) { - this.height = textSize; - } else { - this.width = textSize; - } - } - isHorizontal() { - const pos = this.options.position; - return pos === 'top' || pos === 'bottom'; - } - _drawArgs(offset) { - const {top, left, bottom, right, options} = this; - const align = options.align; - let rotation = 0; - let maxWidth, titleX, titleY; - if (this.isHorizontal()) { - titleX = _alignStartEnd(align, left, right); - titleY = top + offset; - maxWidth = right - left; - } else { - if (options.position === 'left') { - titleX = left + offset; - titleY = _alignStartEnd(align, bottom, top); - rotation = PI * -0.5; - } else { - titleX = right - offset; - titleY = _alignStartEnd(align, top, bottom); - rotation = PI * 0.5; - } - maxWidth = bottom - top; - } - return {titleX, titleY, maxWidth, rotation}; - } - draw() { - const ctx = this.ctx; - const opts = this.options; - if (!opts.display) { - return; - } - const fontOpts = toFont(opts.font); - const lineHeight = fontOpts.lineHeight; - const offset = lineHeight / 2 + this._padding.top; - const {titleX, titleY, maxWidth, rotation} = this._drawArgs(offset); - renderText(ctx, opts.text, 0, 0, fontOpts, { - color: opts.color, - maxWidth, - rotation, - textAlign: _toLeftRightCenter(opts.align), - textBaseline: 'middle', - translation: [titleX, titleY], - }); - } -} -function createTitle(chart, titleOpts) { - const title = new Title({ - ctx: chart.ctx, - options: titleOpts, - chart - }); - layouts.configure(chart, title, titleOpts); - layouts.addBox(chart, title); - chart.titleBlock = title; -} -var plugin_title = { - id: 'title', - _element: Title, - start(chart, _args, options) { - createTitle(chart, options); - }, - stop(chart) { - const titleBlock = chart.titleBlock; - layouts.removeBox(chart, titleBlock); - delete chart.titleBlock; - }, - beforeUpdate(chart, _args, options) { - const title = chart.titleBlock; - layouts.configure(chart, title, options); - title.options = options; - }, - defaults: { - align: 'center', - display: false, - font: { - weight: 'bold', - }, - fullSize: true, - padding: 10, - position: 'top', - text: '', - weight: 2000 - }, - defaultRoutes: { - color: 'color' - }, - descriptors: { - _scriptable: true, - _indexable: false, - }, -}; - -const map = new WeakMap(); -var plugin_subtitle = { - id: 'subtitle', - start(chart, _args, options) { - const title = new Title({ - ctx: chart.ctx, - options, - chart - }); - layouts.configure(chart, title, options); - layouts.addBox(chart, title); - map.set(chart, title); - }, - stop(chart) { - layouts.removeBox(chart, map.get(chart)); - map.delete(chart); - }, - beforeUpdate(chart, _args, options) { - const title = map.get(chart); - layouts.configure(chart, title, options); - title.options = options; - }, - defaults: { - align: 'center', - display: false, - font: { - weight: 'normal', - }, - fullSize: true, - padding: 0, - position: 'top', - text: '', - weight: 1500 - }, - defaultRoutes: { - color: 'color' - }, - descriptors: { - _scriptable: true, - _indexable: false, - }, -}; - -const positioners = { - average(items) { - if (!items.length) { - return false; - } - let i, len; - let x = 0; - let y = 0; - let count = 0; - for (i = 0, len = items.length; i < len; ++i) { - const el = items[i].element; - if (el && el.hasValue()) { - const pos = el.tooltipPosition(); - x += pos.x; - y += pos.y; - ++count; - } - } - return { - x: x / count, - y: y / count - }; - }, - nearest(items, eventPosition) { - if (!items.length) { - return false; - } - let x = eventPosition.x; - let y = eventPosition.y; - let minDistance = Number.POSITIVE_INFINITY; - let i, len, nearestElement; - for (i = 0, len = items.length; i < len; ++i) { - const el = items[i].element; - if (el && el.hasValue()) { - const center = el.getCenterPoint(); - const d = distanceBetweenPoints(eventPosition, center); - if (d < minDistance) { - minDistance = d; - nearestElement = el; - } - } - } - if (nearestElement) { - const tp = nearestElement.tooltipPosition(); - x = tp.x; - y = tp.y; - } - return { - x, - y - }; - } -}; -function pushOrConcat(base, toPush) { - if (toPush) { - if (isArray(toPush)) { - Array.prototype.push.apply(base, toPush); - } else { - base.push(toPush); - } - } - return base; -} -function splitNewlines(str) { - if ((typeof str === 'string' || str instanceof String) && str.indexOf('\n') > -1) { - return str.split('\n'); - } - return str; -} -function createTooltipItem(chart, item) { - const {element, datasetIndex, index} = item; - const controller = chart.getDatasetMeta(datasetIndex).controller; - const {label, value} = controller.getLabelAndValue(index); - return { - chart, - label, - parsed: controller.getParsed(index), - raw: chart.data.datasets[datasetIndex].data[index], - formattedValue: value, - dataset: controller.getDataset(), - dataIndex: index, - datasetIndex, - element - }; -} -function getTooltipSize(tooltip, options) { - const ctx = tooltip.chart.ctx; - const {body, footer, title} = tooltip; - const {boxWidth, boxHeight} = options; - const bodyFont = toFont(options.bodyFont); - const titleFont = toFont(options.titleFont); - const footerFont = toFont(options.footerFont); - const titleLineCount = title.length; - const footerLineCount = footer.length; - const bodyLineItemCount = body.length; - const padding = toPadding(options.padding); - let height = padding.height; - let width = 0; - let combinedBodyLength = body.reduce((count, bodyItem) => count + bodyItem.before.length + bodyItem.lines.length + bodyItem.after.length, 0); - combinedBodyLength += tooltip.beforeBody.length + tooltip.afterBody.length; - if (titleLineCount) { - height += titleLineCount * titleFont.lineHeight - + (titleLineCount - 1) * options.titleSpacing - + options.titleMarginBottom; - } - if (combinedBodyLength) { - const bodyLineHeight = options.displayColors ? Math.max(boxHeight, bodyFont.lineHeight) : bodyFont.lineHeight; - height += bodyLineItemCount * bodyLineHeight - + (combinedBodyLength - bodyLineItemCount) * bodyFont.lineHeight - + (combinedBodyLength - 1) * options.bodySpacing; - } - if (footerLineCount) { - height += options.footerMarginTop - + footerLineCount * footerFont.lineHeight - + (footerLineCount - 1) * options.footerSpacing; - } - let widthPadding = 0; - const maxLineWidth = function(line) { - width = Math.max(width, ctx.measureText(line).width + widthPadding); - }; - ctx.save(); - ctx.font = titleFont.string; - each(tooltip.title, maxLineWidth); - ctx.font = bodyFont.string; - each(tooltip.beforeBody.concat(tooltip.afterBody), maxLineWidth); - widthPadding = options.displayColors ? (boxWidth + 2 + options.boxPadding) : 0; - each(body, (bodyItem) => { - each(bodyItem.before, maxLineWidth); - each(bodyItem.lines, maxLineWidth); - each(bodyItem.after, maxLineWidth); - }); - widthPadding = 0; - ctx.font = footerFont.string; - each(tooltip.footer, maxLineWidth); - ctx.restore(); - width += padding.width; - return {width, height}; -} -function determineYAlign(chart, size) { - const {y, height} = size; - if (y < height / 2) { - return 'top'; - } else if (y > (chart.height - height / 2)) { - return 'bottom'; - } - return 'center'; -} -function doesNotFitWithAlign(xAlign, chart, options, size) { - const {x, width} = size; - const caret = options.caretSize + options.caretPadding; - if (xAlign === 'left' && x + width + caret > chart.width) { - return true; - } - if (xAlign === 'right' && x - width - caret < 0) { - return true; - } -} -function determineXAlign(chart, options, size, yAlign) { - const {x, width} = size; - const {width: chartWidth, chartArea: {left, right}} = chart; - let xAlign = 'center'; - if (yAlign === 'center') { - xAlign = x <= (left + right) / 2 ? 'left' : 'right'; - } else if (x <= width / 2) { - xAlign = 'left'; - } else if (x >= chartWidth - width / 2) { - xAlign = 'right'; - } - if (doesNotFitWithAlign(xAlign, chart, options, size)) { - xAlign = 'center'; - } - return xAlign; -} -function determineAlignment(chart, options, size) { - const yAlign = size.yAlign || options.yAlign || determineYAlign(chart, size); - return { - xAlign: size.xAlign || options.xAlign || determineXAlign(chart, options, size, yAlign), - yAlign - }; -} -function alignX(size, xAlign) { - let {x, width} = size; - if (xAlign === 'right') { - x -= width; - } else if (xAlign === 'center') { - x -= (width / 2); - } - return x; -} -function alignY(size, yAlign, paddingAndSize) { - let {y, height} = size; - if (yAlign === 'top') { - y += paddingAndSize; - } else if (yAlign === 'bottom') { - y -= height + paddingAndSize; - } else { - y -= (height / 2); - } - return y; -} -function getBackgroundPoint(options, size, alignment, chart) { - const {caretSize, caretPadding, cornerRadius} = options; - const {xAlign, yAlign} = alignment; - const paddingAndSize = caretSize + caretPadding; - const {topLeft, topRight, bottomLeft, bottomRight} = toTRBLCorners(cornerRadius); - let x = alignX(size, xAlign); - const y = alignY(size, yAlign, paddingAndSize); - if (yAlign === 'center') { - if (xAlign === 'left') { - x += paddingAndSize; - } else if (xAlign === 'right') { - x -= paddingAndSize; - } - } else if (xAlign === 'left') { - x -= Math.max(topLeft, bottomLeft) + caretSize; - } else if (xAlign === 'right') { - x += Math.max(topRight, bottomRight) + caretSize; - } - return { - x: _limitValue(x, 0, chart.width - size.width), - y: _limitValue(y, 0, chart.height - size.height) - }; -} -function getAlignedX(tooltip, align, options) { - const padding = toPadding(options.padding); - return align === 'center' - ? tooltip.x + tooltip.width / 2 - : align === 'right' - ? tooltip.x + tooltip.width - padding.right - : tooltip.x + padding.left; -} -function getBeforeAfterBodyLines(callback) { - return pushOrConcat([], splitNewlines(callback)); -} -function createTooltipContext(parent, tooltip, tooltipItems) { - return createContext(parent, { - tooltip, - tooltipItems, - type: 'tooltip' - }); -} -function overrideCallbacks(callbacks, context) { - const override = context && context.dataset && context.dataset.tooltip && context.dataset.tooltip.callbacks; - return override ? callbacks.override(override) : callbacks; -} -class Tooltip extends Element { - constructor(config) { - super(); - this.opacity = 0; - this._active = []; - this._eventPosition = undefined; - this._size = undefined; - this._cachedAnimations = undefined; - this._tooltipItems = []; - this.$animations = undefined; - this.$context = undefined; - this.chart = config.chart || config._chart; - this._chart = this.chart; - this.options = config.options; - this.dataPoints = undefined; - this.title = undefined; - this.beforeBody = undefined; - this.body = undefined; - this.afterBody = undefined; - this.footer = undefined; - this.xAlign = undefined; - this.yAlign = undefined; - this.x = undefined; - this.y = undefined; - this.height = undefined; - this.width = undefined; - this.caretX = undefined; - this.caretY = undefined; - this.labelColors = undefined; - this.labelPointStyles = undefined; - this.labelTextColors = undefined; - } - initialize(options) { - this.options = options; - this._cachedAnimations = undefined; - this.$context = undefined; - } - _resolveAnimations() { - const cached = this._cachedAnimations; - if (cached) { - return cached; - } - const chart = this.chart; - const options = this.options.setContext(this.getContext()); - const opts = options.enabled && chart.options.animation && options.animations; - const animations = new Animations(this.chart, opts); - if (opts._cacheable) { - this._cachedAnimations = Object.freeze(animations); - } - return animations; - } - getContext() { - return this.$context || - (this.$context = createTooltipContext(this.chart.getContext(), this, this._tooltipItems)); - } - getTitle(context, options) { - const {callbacks} = options; - const beforeTitle = callbacks.beforeTitle.apply(this, [context]); - const title = callbacks.title.apply(this, [context]); - const afterTitle = callbacks.afterTitle.apply(this, [context]); - let lines = []; - lines = pushOrConcat(lines, splitNewlines(beforeTitle)); - lines = pushOrConcat(lines, splitNewlines(title)); - lines = pushOrConcat(lines, splitNewlines(afterTitle)); - return lines; - } - getBeforeBody(tooltipItems, options) { - return getBeforeAfterBodyLines(options.callbacks.beforeBody.apply(this, [tooltipItems])); - } - getBody(tooltipItems, options) { - const {callbacks} = options; - const bodyItems = []; - each(tooltipItems, (context) => { - const bodyItem = { - before: [], - lines: [], - after: [] - }; - const scoped = overrideCallbacks(callbacks, context); - pushOrConcat(bodyItem.before, splitNewlines(scoped.beforeLabel.call(this, context))); - pushOrConcat(bodyItem.lines, scoped.label.call(this, context)); - pushOrConcat(bodyItem.after, splitNewlines(scoped.afterLabel.call(this, context))); - bodyItems.push(bodyItem); - }); - return bodyItems; - } - getAfterBody(tooltipItems, options) { - return getBeforeAfterBodyLines(options.callbacks.afterBody.apply(this, [tooltipItems])); - } - getFooter(tooltipItems, options) { - const {callbacks} = options; - const beforeFooter = callbacks.beforeFooter.apply(this, [tooltipItems]); - const footer = callbacks.footer.apply(this, [tooltipItems]); - const afterFooter = callbacks.afterFooter.apply(this, [tooltipItems]); - let lines = []; - lines = pushOrConcat(lines, splitNewlines(beforeFooter)); - lines = pushOrConcat(lines, splitNewlines(footer)); - lines = pushOrConcat(lines, splitNewlines(afterFooter)); - return lines; - } - _createItems(options) { - const active = this._active; - const data = this.chart.data; - const labelColors = []; - const labelPointStyles = []; - const labelTextColors = []; - let tooltipItems = []; - let i, len; - for (i = 0, len = active.length; i < len; ++i) { - tooltipItems.push(createTooltipItem(this.chart, active[i])); - } - if (options.filter) { - tooltipItems = tooltipItems.filter((element, index, array) => options.filter(element, index, array, data)); - } - if (options.itemSort) { - tooltipItems = tooltipItems.sort((a, b) => options.itemSort(a, b, data)); - } - each(tooltipItems, (context) => { - const scoped = overrideCallbacks(options.callbacks, context); - labelColors.push(scoped.labelColor.call(this, context)); - labelPointStyles.push(scoped.labelPointStyle.call(this, context)); - labelTextColors.push(scoped.labelTextColor.call(this, context)); - }); - this.labelColors = labelColors; - this.labelPointStyles = labelPointStyles; - this.labelTextColors = labelTextColors; - this.dataPoints = tooltipItems; - return tooltipItems; - } - update(changed, replay) { - const options = this.options.setContext(this.getContext()); - const active = this._active; - let properties; - let tooltipItems = []; - if (!active.length) { - if (this.opacity !== 0) { - properties = { - opacity: 0 - }; - } - } else { - const position = positioners[options.position].call(this, active, this._eventPosition); - tooltipItems = this._createItems(options); - this.title = this.getTitle(tooltipItems, options); - this.beforeBody = this.getBeforeBody(tooltipItems, options); - this.body = this.getBody(tooltipItems, options); - this.afterBody = this.getAfterBody(tooltipItems, options); - this.footer = this.getFooter(tooltipItems, options); - const size = this._size = getTooltipSize(this, options); - const positionAndSize = Object.assign({}, position, size); - const alignment = determineAlignment(this.chart, options, positionAndSize); - const backgroundPoint = getBackgroundPoint(options, positionAndSize, alignment, this.chart); - this.xAlign = alignment.xAlign; - this.yAlign = alignment.yAlign; - properties = { - opacity: 1, - x: backgroundPoint.x, - y: backgroundPoint.y, - width: size.width, - height: size.height, - caretX: position.x, - caretY: position.y - }; - } - this._tooltipItems = tooltipItems; - this.$context = undefined; - if (properties) { - this._resolveAnimations().update(this, properties); - } - if (changed && options.external) { - options.external.call(this, {chart: this.chart, tooltip: this, replay}); - } - } - drawCaret(tooltipPoint, ctx, size, options) { - const caretPosition = this.getCaretPosition(tooltipPoint, size, options); - ctx.lineTo(caretPosition.x1, caretPosition.y1); - ctx.lineTo(caretPosition.x2, caretPosition.y2); - ctx.lineTo(caretPosition.x3, caretPosition.y3); - } - getCaretPosition(tooltipPoint, size, options) { - const {xAlign, yAlign} = this; - const {caretSize, cornerRadius} = options; - const {topLeft, topRight, bottomLeft, bottomRight} = toTRBLCorners(cornerRadius); - const {x: ptX, y: ptY} = tooltipPoint; - const {width, height} = size; - let x1, x2, x3, y1, y2, y3; - if (yAlign === 'center') { - y2 = ptY + (height / 2); - if (xAlign === 'left') { - x1 = ptX; - x2 = x1 - caretSize; - y1 = y2 + caretSize; - y3 = y2 - caretSize; - } else { - x1 = ptX + width; - x2 = x1 + caretSize; - y1 = y2 - caretSize; - y3 = y2 + caretSize; - } - x3 = x1; - } else { - if (xAlign === 'left') { - x2 = ptX + Math.max(topLeft, bottomLeft) + (caretSize); - } else if (xAlign === 'right') { - x2 = ptX + width - Math.max(topRight, bottomRight) - caretSize; - } else { - x2 = this.caretX; - } - if (yAlign === 'top') { - y1 = ptY; - y2 = y1 - caretSize; - x1 = x2 - caretSize; - x3 = x2 + caretSize; - } else { - y1 = ptY + height; - y2 = y1 + caretSize; - x1 = x2 + caretSize; - x3 = x2 - caretSize; - } - y3 = y1; - } - return {x1, x2, x3, y1, y2, y3}; - } - drawTitle(pt, ctx, options) { - const title = this.title; - const length = title.length; - let titleFont, titleSpacing, i; - if (length) { - const rtlHelper = getRtlAdapter(options.rtl, this.x, this.width); - pt.x = getAlignedX(this, options.titleAlign, options); - ctx.textAlign = rtlHelper.textAlign(options.titleAlign); - ctx.textBaseline = 'middle'; - titleFont = toFont(options.titleFont); - titleSpacing = options.titleSpacing; - ctx.fillStyle = options.titleColor; - ctx.font = titleFont.string; - for (i = 0; i < length; ++i) { - ctx.fillText(title[i], rtlHelper.x(pt.x), pt.y + titleFont.lineHeight / 2); - pt.y += titleFont.lineHeight + titleSpacing; - if (i + 1 === length) { - pt.y += options.titleMarginBottom - titleSpacing; - } - } - } - } - _drawColorBox(ctx, pt, i, rtlHelper, options) { - const labelColors = this.labelColors[i]; - const labelPointStyle = this.labelPointStyles[i]; - const {boxHeight, boxWidth, boxPadding} = options; - const bodyFont = toFont(options.bodyFont); - const colorX = getAlignedX(this, 'left', options); - const rtlColorX = rtlHelper.x(colorX); - const yOffSet = boxHeight < bodyFont.lineHeight ? (bodyFont.lineHeight - boxHeight) / 2 : 0; - const colorY = pt.y + yOffSet; - if (options.usePointStyle) { - const drawOptions = { - radius: Math.min(boxWidth, boxHeight) / 2, - pointStyle: labelPointStyle.pointStyle, - rotation: labelPointStyle.rotation, - borderWidth: 1 - }; - const centerX = rtlHelper.leftForLtr(rtlColorX, boxWidth) + boxWidth / 2; - const centerY = colorY + boxHeight / 2; - ctx.strokeStyle = options.multiKeyBackground; - ctx.fillStyle = options.multiKeyBackground; - drawPoint(ctx, drawOptions, centerX, centerY); - ctx.strokeStyle = labelColors.borderColor; - ctx.fillStyle = labelColors.backgroundColor; - drawPoint(ctx, drawOptions, centerX, centerY); - } else { - ctx.lineWidth = labelColors.borderWidth || 1; - ctx.strokeStyle = labelColors.borderColor; - ctx.setLineDash(labelColors.borderDash || []); - ctx.lineDashOffset = labelColors.borderDashOffset || 0; - const outerX = rtlHelper.leftForLtr(rtlColorX, boxWidth - boxPadding); - const innerX = rtlHelper.leftForLtr(rtlHelper.xPlus(rtlColorX, 1), boxWidth - boxPadding - 2); - const borderRadius = toTRBLCorners(labelColors.borderRadius); - if (Object.values(borderRadius).some(v => v !== 0)) { - ctx.beginPath(); - ctx.fillStyle = options.multiKeyBackground; - addRoundedRectPath(ctx, { - x: outerX, - y: colorY, - w: boxWidth, - h: boxHeight, - radius: borderRadius, - }); - ctx.fill(); - ctx.stroke(); - ctx.fillStyle = labelColors.backgroundColor; - ctx.beginPath(); - addRoundedRectPath(ctx, { - x: innerX, - y: colorY + 1, - w: boxWidth - 2, - h: boxHeight - 2, - radius: borderRadius, - }); - ctx.fill(); - } else { - ctx.fillStyle = options.multiKeyBackground; - ctx.fillRect(outerX, colorY, boxWidth, boxHeight); - ctx.strokeRect(outerX, colorY, boxWidth, boxHeight); - ctx.fillStyle = labelColors.backgroundColor; - ctx.fillRect(innerX, colorY + 1, boxWidth - 2, boxHeight - 2); - } - } - ctx.fillStyle = this.labelTextColors[i]; - } - drawBody(pt, ctx, options) { - const {body} = this; - const {bodySpacing, bodyAlign, displayColors, boxHeight, boxWidth, boxPadding} = options; - const bodyFont = toFont(options.bodyFont); - let bodyLineHeight = bodyFont.lineHeight; - let xLinePadding = 0; - const rtlHelper = getRtlAdapter(options.rtl, this.x, this.width); - const fillLineOfText = function(line) { - ctx.fillText(line, rtlHelper.x(pt.x + xLinePadding), pt.y + bodyLineHeight / 2); - pt.y += bodyLineHeight + bodySpacing; - }; - const bodyAlignForCalculation = rtlHelper.textAlign(bodyAlign); - let bodyItem, textColor, lines, i, j, ilen, jlen; - ctx.textAlign = bodyAlign; - ctx.textBaseline = 'middle'; - ctx.font = bodyFont.string; - pt.x = getAlignedX(this, bodyAlignForCalculation, options); - ctx.fillStyle = options.bodyColor; - each(this.beforeBody, fillLineOfText); - xLinePadding = displayColors && bodyAlignForCalculation !== 'right' - ? bodyAlign === 'center' ? (boxWidth / 2 + boxPadding) : (boxWidth + 2 + boxPadding) - : 0; - for (i = 0, ilen = body.length; i < ilen; ++i) { - bodyItem = body[i]; - textColor = this.labelTextColors[i]; - ctx.fillStyle = textColor; - each(bodyItem.before, fillLineOfText); - lines = bodyItem.lines; - if (displayColors && lines.length) { - this._drawColorBox(ctx, pt, i, rtlHelper, options); - bodyLineHeight = Math.max(bodyFont.lineHeight, boxHeight); - } - for (j = 0, jlen = lines.length; j < jlen; ++j) { - fillLineOfText(lines[j]); - bodyLineHeight = bodyFont.lineHeight; - } - each(bodyItem.after, fillLineOfText); - } - xLinePadding = 0; - bodyLineHeight = bodyFont.lineHeight; - each(this.afterBody, fillLineOfText); - pt.y -= bodySpacing; - } - drawFooter(pt, ctx, options) { - const footer = this.footer; - const length = footer.length; - let footerFont, i; - if (length) { - const rtlHelper = getRtlAdapter(options.rtl, this.x, this.width); - pt.x = getAlignedX(this, options.footerAlign, options); - pt.y += options.footerMarginTop; - ctx.textAlign = rtlHelper.textAlign(options.footerAlign); - ctx.textBaseline = 'middle'; - footerFont = toFont(options.footerFont); - ctx.fillStyle = options.footerColor; - ctx.font = footerFont.string; - for (i = 0; i < length; ++i) { - ctx.fillText(footer[i], rtlHelper.x(pt.x), pt.y + footerFont.lineHeight / 2); - pt.y += footerFont.lineHeight + options.footerSpacing; - } - } - } - drawBackground(pt, ctx, tooltipSize, options) { - const {xAlign, yAlign} = this; - const {x, y} = pt; - const {width, height} = tooltipSize; - const {topLeft, topRight, bottomLeft, bottomRight} = toTRBLCorners(options.cornerRadius); - ctx.fillStyle = options.backgroundColor; - ctx.strokeStyle = options.borderColor; - ctx.lineWidth = options.borderWidth; - ctx.beginPath(); - ctx.moveTo(x + topLeft, y); - if (yAlign === 'top') { - this.drawCaret(pt, ctx, tooltipSize, options); - } - ctx.lineTo(x + width - topRight, y); - ctx.quadraticCurveTo(x + width, y, x + width, y + topRight); - if (yAlign === 'center' && xAlign === 'right') { - this.drawCaret(pt, ctx, tooltipSize, options); - } - ctx.lineTo(x + width, y + height - bottomRight); - ctx.quadraticCurveTo(x + width, y + height, x + width - bottomRight, y + height); - if (yAlign === 'bottom') { - this.drawCaret(pt, ctx, tooltipSize, options); - } - ctx.lineTo(x + bottomLeft, y + height); - ctx.quadraticCurveTo(x, y + height, x, y + height - bottomLeft); - if (yAlign === 'center' && xAlign === 'left') { - this.drawCaret(pt, ctx, tooltipSize, options); - } - ctx.lineTo(x, y + topLeft); - ctx.quadraticCurveTo(x, y, x + topLeft, y); - ctx.closePath(); - ctx.fill(); - if (options.borderWidth > 0) { - ctx.stroke(); - } - } - _updateAnimationTarget(options) { - const chart = this.chart; - const anims = this.$animations; - const animX = anims && anims.x; - const animY = anims && anims.y; - if (animX || animY) { - const position = positioners[options.position].call(this, this._active, this._eventPosition); - if (!position) { - return; - } - const size = this._size = getTooltipSize(this, options); - const positionAndSize = Object.assign({}, position, this._size); - const alignment = determineAlignment(chart, options, positionAndSize); - const point = getBackgroundPoint(options, positionAndSize, alignment, chart); - if (animX._to !== point.x || animY._to !== point.y) { - this.xAlign = alignment.xAlign; - this.yAlign = alignment.yAlign; - this.width = size.width; - this.height = size.height; - this.caretX = position.x; - this.caretY = position.y; - this._resolveAnimations().update(this, point); - } - } - } - _willRender() { - return !!this.opacity; - } - draw(ctx) { - const options = this.options.setContext(this.getContext()); - let opacity = this.opacity; - if (!opacity) { - return; - } - this._updateAnimationTarget(options); - const tooltipSize = { - width: this.width, - height: this.height - }; - const pt = { - x: this.x, - y: this.y - }; - opacity = Math.abs(opacity) < 1e-3 ? 0 : opacity; - const padding = toPadding(options.padding); - const hasTooltipContent = this.title.length || this.beforeBody.length || this.body.length || this.afterBody.length || this.footer.length; - if (options.enabled && hasTooltipContent) { - ctx.save(); - ctx.globalAlpha = opacity; - this.drawBackground(pt, ctx, tooltipSize, options); - overrideTextDirection(ctx, options.textDirection); - pt.y += padding.top; - this.drawTitle(pt, ctx, options); - this.drawBody(pt, ctx, options); - this.drawFooter(pt, ctx, options); - restoreTextDirection(ctx, options.textDirection); - ctx.restore(); - } - } - getActiveElements() { - return this._active || []; - } - setActiveElements(activeElements, eventPosition) { - const lastActive = this._active; - const active = activeElements.map(({datasetIndex, index}) => { - const meta = this.chart.getDatasetMeta(datasetIndex); - if (!meta) { - throw new Error('Cannot find a dataset at index ' + datasetIndex); - } - return { - datasetIndex, - element: meta.data[index], - index, - }; - }); - const changed = !_elementsEqual(lastActive, active); - const positionChanged = this._positionChanged(active, eventPosition); - if (changed || positionChanged) { - this._active = active; - this._eventPosition = eventPosition; - this._ignoreReplayEvents = true; - this.update(true); - } - } - handleEvent(e, replay, inChartArea = true) { - if (replay && this._ignoreReplayEvents) { - return false; - } - this._ignoreReplayEvents = false; - const options = this.options; - const lastActive = this._active || []; - const active = this._getActiveElements(e, lastActive, replay, inChartArea); - const positionChanged = this._positionChanged(active, e); - const changed = replay || !_elementsEqual(active, lastActive) || positionChanged; - if (changed) { - this._active = active; - if (options.enabled || options.external) { - this._eventPosition = { - x: e.x, - y: e.y - }; - this.update(true, replay); - } - } - return changed; - } - _getActiveElements(e, lastActive, replay, inChartArea) { - const options = this.options; - if (e.type === 'mouseout') { - return []; - } - if (!inChartArea) { - return lastActive; - } - const active = this.chart.getElementsAtEventForMode(e, options.mode, options, replay); - if (options.reverse) { - active.reverse(); - } - return active; - } - _positionChanged(active, e) { - const {caretX, caretY, options} = this; - const position = positioners[options.position].call(this, active, e); - return position !== false && (caretX !== position.x || caretY !== position.y); - } -} -Tooltip.positioners = positioners; -var plugin_tooltip = { - id: 'tooltip', - _element: Tooltip, - positioners, - afterInit(chart, _args, options) { - if (options) { - chart.tooltip = new Tooltip({chart, options}); - } - }, - beforeUpdate(chart, _args, options) { - if (chart.tooltip) { - chart.tooltip.initialize(options); - } - }, - reset(chart, _args, options) { - if (chart.tooltip) { - chart.tooltip.initialize(options); - } - }, - afterDraw(chart) { - const tooltip = chart.tooltip; - if (tooltip && tooltip._willRender()) { - const args = { - tooltip - }; - if (chart.notifyPlugins('beforeTooltipDraw', args) === false) { - return; - } - tooltip.draw(chart.ctx); - chart.notifyPlugins('afterTooltipDraw', args); - } - }, - afterEvent(chart, args) { - if (chart.tooltip) { - const useFinalPosition = args.replay; - if (chart.tooltip.handleEvent(args.event, useFinalPosition, args.inChartArea)) { - args.changed = true; - } - } - }, - defaults: { - enabled: true, - external: null, - position: 'average', - backgroundColor: 'rgba(0,0,0,0.8)', - titleColor: '#fff', - titleFont: { - weight: 'bold', - }, - titleSpacing: 2, - titleMarginBottom: 6, - titleAlign: 'left', - bodyColor: '#fff', - bodySpacing: 2, - bodyFont: { - }, - bodyAlign: 'left', - footerColor: '#fff', - footerSpacing: 2, - footerMarginTop: 6, - footerFont: { - weight: 'bold', - }, - footerAlign: 'left', - padding: 6, - caretPadding: 2, - caretSize: 5, - cornerRadius: 6, - boxHeight: (ctx, opts) => opts.bodyFont.size, - boxWidth: (ctx, opts) => opts.bodyFont.size, - multiKeyBackground: '#fff', - displayColors: true, - boxPadding: 0, - borderColor: 'rgba(0,0,0,0)', - borderWidth: 0, - animation: { - duration: 400, - easing: 'easeOutQuart', - }, - animations: { - numbers: { - type: 'number', - properties: ['x', 'y', 'width', 'height', 'caretX', 'caretY'], - }, - opacity: { - easing: 'linear', - duration: 200 - } - }, - callbacks: { - beforeTitle: noop, - title(tooltipItems) { - if (tooltipItems.length > 0) { - const item = tooltipItems[0]; - const labels = item.chart.data.labels; - const labelCount = labels ? labels.length : 0; - if (this && this.options && this.options.mode === 'dataset') { - return item.dataset.label || ''; - } else if (item.label) { - return item.label; - } else if (labelCount > 0 && item.dataIndex < labelCount) { - return labels[item.dataIndex]; - } - } - return ''; - }, - afterTitle: noop, - beforeBody: noop, - beforeLabel: noop, - label(tooltipItem) { - if (this && this.options && this.options.mode === 'dataset') { - return tooltipItem.label + ': ' + tooltipItem.formattedValue || tooltipItem.formattedValue; - } - let label = tooltipItem.dataset.label || ''; - if (label) { - label += ': '; - } - const value = tooltipItem.formattedValue; - if (!isNullOrUndef(value)) { - label += value; - } - return label; - }, - labelColor(tooltipItem) { - const meta = tooltipItem.chart.getDatasetMeta(tooltipItem.datasetIndex); - const options = meta.controller.getStyle(tooltipItem.dataIndex); - return { - borderColor: options.borderColor, - backgroundColor: options.backgroundColor, - borderWidth: options.borderWidth, - borderDash: options.borderDash, - borderDashOffset: options.borderDashOffset, - borderRadius: 0, - }; - }, - labelTextColor() { - return this.options.bodyColor; - }, - labelPointStyle(tooltipItem) { - const meta = tooltipItem.chart.getDatasetMeta(tooltipItem.datasetIndex); - const options = meta.controller.getStyle(tooltipItem.dataIndex); - return { - pointStyle: options.pointStyle, - rotation: options.rotation, - }; - }, - afterLabel: noop, - afterBody: noop, - beforeFooter: noop, - footer: noop, - afterFooter: noop - } - }, - defaultRoutes: { - bodyFont: 'font', - footerFont: 'font', - titleFont: 'font' - }, - descriptors: { - _scriptable: (name) => name !== 'filter' && name !== 'itemSort' && name !== 'external', - _indexable: false, - callbacks: { - _scriptable: false, - _indexable: false, - }, - animation: { - _fallback: false - }, - animations: { - _fallback: 'animation' - } - }, - additionalOptionScopes: ['interaction'] -}; - -var plugins = /*#__PURE__*/Object.freeze({ -__proto__: null, -Decimation: plugin_decimation, -Filler: index, -Legend: plugin_legend, -SubTitle: plugin_subtitle, -Title: plugin_title, -Tooltip: plugin_tooltip -}); - -const addIfString = (labels, raw, index, addedLabels) => { - if (typeof raw === 'string') { - index = labels.push(raw) - 1; - addedLabels.unshift({index, label: raw}); - } else if (isNaN(raw)) { - index = null; - } - return index; + return index; }; function findOrAddLabel(labels, raw, index, addedLabels) { - const first = labels.indexOf(raw); - if (first === -1) { - return addIfString(labels, raw, index, addedLabels); - } - const last = labels.lastIndexOf(raw); - return first !== last ? index : first; + const first = labels.indexOf(raw); + if (first === -1) { + return addIfString(labels, raw, index, addedLabels); + } + const last = labels.lastIndexOf(raw); + return first !== last ? index : first; } -const validIndex = (index, max) => index === null ? null : _limitValue(Math.round(index), 0, max); -class CategoryScale extends Scale { - constructor(cfg) { - super(cfg); - this._startValue = undefined; - this._valueRange = 0; - this._addedLabels = []; - } - init(scaleOptions) { - const added = this._addedLabels; - if (added.length) { - const labels = this.getLabels(); - for (const {index, label} of added) { - if (labels[index] === label) { - labels.splice(index, 1); - } - } - this._addedLabels = []; - } - super.init(scaleOptions); - } - parse(raw, index) { - if (isNullOrUndef(raw)) { - return null; - } - const labels = this.getLabels(); - index = isFinite(index) && labels[index] === raw ? index - : findOrAddLabel(labels, raw, valueOrDefault(index, raw), this._addedLabels); - return validIndex(index, labels.length - 1); - } - determineDataLimits() { - const {minDefined, maxDefined} = this.getUserBounds(); - let {min, max} = this.getMinMax(true); - if (this.options.bounds === 'ticks') { - if (!minDefined) { - min = 0; - } - if (!maxDefined) { - max = this.getLabels().length - 1; - } - } - this.min = min; - this.max = max; - } - buildTicks() { - const min = this.min; - const max = this.max; - const offset = this.options.offset; - const ticks = []; - let labels = this.getLabels(); - labels = (min === 0 && max === labels.length - 1) ? labels : labels.slice(min, max + 1); - this._valueRange = Math.max(labels.length - (offset ? 0 : 1), 1); - this._startValue = this.min - (offset ? 0.5 : 0); - for (let value = min; value <= max; value++) { - ticks.push({value}); - } - return ticks; - } - getLabelForValue(value) { +const validIndex = (index, max)=>index === null ? null : _limitValue(Math.round(index), 0, max); +function _getLabelForValue(value) { const labels = this.getLabels(); if (value >= 0 && value < labels.length) { - return labels[value]; + return labels[value]; } return value; - } - configure() { - super.configure(); - if (!this.isHorizontal()) { - this._reversePixels = !this._reversePixels; - } - } - getPixelForValue(value) { - if (typeof value !== 'number') { - value = this.parse(value); - } - return value === null ? NaN : this.getPixelForDecimal((value - this._startValue) / this._valueRange); - } - getPixelForTick(index) { - const ticks = this.ticks; - if (index < 0 || index > ticks.length - 1) { - return null; - } - return this.getPixelForValue(ticks[index].value); - } - getValueForPixel(pixel) { - return Math.round(this._startValue + this.getDecimalForPixel(pixel) * this._valueRange); - } - getBasePixel() { - return this.bottom; - } } -CategoryScale.id = 'category'; -CategoryScale.defaults = { - ticks: { - callback: CategoryScale.prototype.getLabelForValue - } -}; +class CategoryScale extends Scale { + static id = 'category'; + static defaults = { + ticks: { + callback: _getLabelForValue + } + }; + constructor(cfg){ + super(cfg); + this._startValue = undefined; + this._valueRange = 0; + this._addedLabels = []; + } + init(scaleOptions) { + const added = this._addedLabels; + if (added.length) { + const labels = this.getLabels(); + for (const { index , label } of added){ + if (labels[index] === label) { + labels.splice(index, 1); + } + } + this._addedLabels = []; + } + super.init(scaleOptions); + } + parse(raw, index) { + if (isNullOrUndef(raw)) { + return null; + } + const labels = this.getLabels(); + index = isFinite(index) && labels[index] === raw ? index : findOrAddLabel(labels, raw, valueOrDefault(index, raw), this._addedLabels); + return validIndex(index, labels.length - 1); + } + determineDataLimits() { + const { minDefined , maxDefined } = this.getUserBounds(); + let { min , max } = this.getMinMax(true); + if (this.options.bounds === 'ticks') { + if (!minDefined) { + min = 0; + } + if (!maxDefined) { + max = this.getLabels().length - 1; + } + } + this.min = min; + this.max = max; + } + buildTicks() { + const min = this.min; + const max = this.max; + const offset = this.options.offset; + const ticks = []; + let labels = this.getLabels(); + labels = min === 0 && max === labels.length - 1 ? labels : labels.slice(min, max + 1); + this._valueRange = Math.max(labels.length - (offset ? 0 : 1), 1); + this._startValue = this.min - (offset ? 0.5 : 0); + for(let value = min; value <= max; value++){ + ticks.push({ + value + }); + } + return ticks; + } + getLabelForValue(value) { + return _getLabelForValue.call(this, value); + } + configure() { + super.configure(); + if (!this.isHorizontal()) { + this._reversePixels = !this._reversePixels; + } + } + getPixelForValue(value) { + if (typeof value !== 'number') { + value = this.parse(value); + } + return value === null ? NaN : this.getPixelForDecimal((value - this._startValue) / this._valueRange); + } + getPixelForTick(index) { + const ticks = this.ticks; + if (index < 0 || index > ticks.length - 1) { + return null; + } + return this.getPixelForValue(ticks[index].value); + } + getValueForPixel(pixel) { + return Math.round(this._startValue + this.getDecimalForPixel(pixel) * this._valueRange); + } + getBasePixel() { + return this.bottom; + } +} function generateTicks$1(generationOptions, dataRange) { - const ticks = []; - const MIN_SPACING = 1e-14; - const {bounds, step, min, max, precision, count, maxTicks, maxDigits, includeBounds} = generationOptions; - const unit = step || 1; - const maxSpaces = maxTicks - 1; - const {min: rmin, max: rmax} = dataRange; - const minDefined = !isNullOrUndef(min); - const maxDefined = !isNullOrUndef(max); - const countDefined = !isNullOrUndef(count); - const minSpacing = (rmax - rmin) / (maxDigits + 1); - let spacing = niceNum((rmax - rmin) / maxSpaces / unit) * unit; - let factor, niceMin, niceMax, numSpaces; - if (spacing < MIN_SPACING && !minDefined && !maxDefined) { - return [{value: rmin}, {value: rmax}]; - } - numSpaces = Math.ceil(rmax / spacing) - Math.floor(rmin / spacing); - if (numSpaces > maxSpaces) { - spacing = niceNum(numSpaces * spacing / maxSpaces / unit) * unit; - } - if (!isNullOrUndef(precision)) { - factor = Math.pow(10, precision); - spacing = Math.ceil(spacing * factor) / factor; - } - if (bounds === 'ticks') { - niceMin = Math.floor(rmin / spacing) * spacing; - niceMax = Math.ceil(rmax / spacing) * spacing; - } else { - niceMin = rmin; - niceMax = rmax; - } - if (minDefined && maxDefined && step && almostWhole((max - min) / step, spacing / 1000)) { - numSpaces = Math.round(Math.min((max - min) / spacing, maxTicks)); - spacing = (max - min) / numSpaces; - niceMin = min; - niceMax = max; - } else if (countDefined) { - niceMin = minDefined ? min : niceMin; - niceMax = maxDefined ? max : niceMax; - numSpaces = count - 1; - spacing = (niceMax - niceMin) / numSpaces; - } else { - numSpaces = (niceMax - niceMin) / spacing; - if (almostEquals(numSpaces, Math.round(numSpaces), spacing / 1000)) { - numSpaces = Math.round(numSpaces); + const ticks = []; + const MIN_SPACING = 1e-14; + const { bounds , step , min , max , precision , count , maxTicks , maxDigits , includeBounds } = generationOptions; + const unit = step || 1; + const maxSpaces = maxTicks - 1; + const { min: rmin , max: rmax } = dataRange; + const minDefined = !isNullOrUndef(min); + const maxDefined = !isNullOrUndef(max); + const countDefined = !isNullOrUndef(count); + const minSpacing = (rmax - rmin) / (maxDigits + 1); + let spacing = niceNum((rmax - rmin) / maxSpaces / unit) * unit; + let factor, niceMin, niceMax, numSpaces; + if (spacing < MIN_SPACING && !minDefined && !maxDefined) { + return [ + { + value: rmin + }, + { + value: rmax + } + ]; + } + numSpaces = Math.ceil(rmax / spacing) - Math.floor(rmin / spacing); + if (numSpaces > maxSpaces) { + spacing = niceNum(numSpaces * spacing / maxSpaces / unit) * unit; + } + if (!isNullOrUndef(precision)) { + factor = Math.pow(10, precision); + spacing = Math.ceil(spacing * factor) / factor; + } + if (bounds === 'ticks') { + niceMin = Math.floor(rmin / spacing) * spacing; + niceMax = Math.ceil(rmax / spacing) * spacing; } else { - numSpaces = Math.ceil(numSpaces); + niceMin = rmin; + niceMax = rmax; } - } - const decimalPlaces = Math.max( - _decimalPlaces(spacing), - _decimalPlaces(niceMin) - ); - factor = Math.pow(10, isNullOrUndef(precision) ? decimalPlaces : precision); - niceMin = Math.round(niceMin * factor) / factor; - niceMax = Math.round(niceMax * factor) / factor; - let j = 0; - if (minDefined) { - if (includeBounds && niceMin !== min) { - ticks.push({value: min}); - if (niceMin < min) { - j++; - } - if (almostEquals(Math.round((niceMin + j * spacing) * factor) / factor, min, relativeLabelSize(min, minSpacing, generationOptions))) { - j++; - } - } else if (niceMin < min) { - j++; - } - } - for (; j < numSpaces; ++j) { - ticks.push({value: Math.round((niceMin + j * spacing) * factor) / factor}); - } - if (maxDefined && includeBounds && niceMax !== max) { - if (ticks.length && almostEquals(ticks[ticks.length - 1].value, max, relativeLabelSize(max, minSpacing, generationOptions))) { - ticks[ticks.length - 1].value = max; + if (minDefined && maxDefined && step && almostWhole((max - min) / step, spacing / 1000)) { + numSpaces = Math.round(Math.min((max - min) / spacing, maxTicks)); + spacing = (max - min) / numSpaces; + niceMin = min; + niceMax = max; + } else if (countDefined) { + niceMin = minDefined ? min : niceMin; + niceMax = maxDefined ? max : niceMax; + numSpaces = count - 1; + spacing = (niceMax - niceMin) / numSpaces; } else { - ticks.push({value: max}); + numSpaces = (niceMax - niceMin) / spacing; + if (almostEquals(numSpaces, Math.round(numSpaces), spacing / 1000)) { + numSpaces = Math.round(numSpaces); + } else { + numSpaces = Math.ceil(numSpaces); + } } - } else if (!maxDefined || niceMax === max) { - ticks.push({value: niceMax}); - } - return ticks; -} -function relativeLabelSize(value, minSpacing, {horizontal, minRotation}) { - const rad = toRadians(minRotation); - const ratio = (horizontal ? Math.sin(rad) : Math.cos(rad)) || 0.001; - const length = 0.75 * minSpacing * ('' + value).length; - return Math.min(minSpacing / ratio, length); -} -class LinearScaleBase extends Scale { - constructor(cfg) { - super(cfg); - this.start = undefined; - this.end = undefined; - this._startValue = undefined; - this._endValue = undefined; - this._valueRange = 0; - } - parse(raw, index) { - if (isNullOrUndef(raw)) { - return null; + const decimalPlaces = Math.max(_decimalPlaces(spacing), _decimalPlaces(niceMin)); + factor = Math.pow(10, isNullOrUndef(precision) ? decimalPlaces : precision); + niceMin = Math.round(niceMin * factor) / factor; + niceMax = Math.round(niceMax * factor) / factor; + let j = 0; + if (minDefined) { + if (includeBounds && niceMin !== min) { + ticks.push({ + value: min + }); + if (niceMin < min) { + j++; + } + if (almostEquals(Math.round((niceMin + j * spacing) * factor) / factor, min, relativeLabelSize(min, minSpacing, generationOptions))) { + j++; + } + } else if (niceMin < min) { + j++; + } } - if ((typeof raw === 'number' || raw instanceof Number) && !isFinite(+raw)) { - return null; + for(; j < numSpaces; ++j){ + ticks.push({ + value: Math.round((niceMin + j * spacing) * factor) / factor + }); } - return +raw; - } - handleTickRangeOptions() { - const {beginAtZero} = this.options; - const {minDefined, maxDefined} = this.getUserBounds(); - let {min, max} = this; - const setMin = v => (min = minDefined ? min : v); - const setMax = v => (max = maxDefined ? max : v); - if (beginAtZero) { - const minSign = sign(min); - const maxSign = sign(max); - if (minSign < 0 && maxSign < 0) { - setMax(0); - } else if (minSign > 0 && maxSign > 0) { - setMin(0); - } - } - if (min === max) { - let offset = 1; - if (max >= Number.MAX_SAFE_INTEGER || min <= Number.MIN_SAFE_INTEGER) { - offset = Math.abs(max * 0.05); - } - setMax(max + offset); - if (!beginAtZero) { - setMin(min - offset); - } - } - this.min = min; - this.max = max; - } - getTickLimit() { - const tickOpts = this.options.ticks; - let {maxTicksLimit, stepSize} = tickOpts; - let maxTicks; - if (stepSize) { - maxTicks = Math.ceil(this.max / stepSize) - Math.floor(this.min / stepSize) + 1; - if (maxTicks > 1000) { - console.warn(`scales.${this.id}.ticks.stepSize: ${stepSize} would result generating up to ${maxTicks} ticks. Limiting to 1000.`); - maxTicks = 1000; - } - } else { - maxTicks = this.computeTickLimit(); - maxTicksLimit = maxTicksLimit || 11; - } - if (maxTicksLimit) { - maxTicks = Math.min(maxTicksLimit, maxTicks); - } - return maxTicks; - } - computeTickLimit() { - return Number.POSITIVE_INFINITY; - } - buildTicks() { - const opts = this.options; - const tickOpts = opts.ticks; - let maxTicks = this.getTickLimit(); - maxTicks = Math.max(2, maxTicks); - const numericGeneratorOptions = { - maxTicks, - bounds: opts.bounds, - min: opts.min, - max: opts.max, - precision: tickOpts.precision, - step: tickOpts.stepSize, - count: tickOpts.count, - maxDigits: this._maxDigits(), - horizontal: this.isHorizontal(), - minRotation: tickOpts.minRotation || 0, - includeBounds: tickOpts.includeBounds !== false - }; - const dataRange = this._range || this; - const ticks = generateTicks$1(numericGeneratorOptions, dataRange); - if (opts.bounds === 'ticks') { - _setMinAndMaxByKey(ticks, this, 'value'); - } - if (opts.reverse) { - ticks.reverse(); - this.start = this.max; - this.end = this.min; - } else { - this.start = this.min; - this.end = this.max; + if (maxDefined && includeBounds && niceMax !== max) { + if (ticks.length && almostEquals(ticks[ticks.length - 1].value, max, relativeLabelSize(max, minSpacing, generationOptions))) { + ticks[ticks.length - 1].value = max; + } else { + ticks.push({ + value: max + }); + } + } else if (!maxDefined || niceMax === max) { + ticks.push({ + value: niceMax + }); } return ticks; - } - configure() { - const ticks = this.ticks; - let start = this.min; - let end = this.max; - super.configure(); - if (this.options.offset && ticks.length) { - const offset = (end - start) / Math.max(ticks.length - 1, 1) / 2; - start -= offset; - end += offset; +} +function relativeLabelSize(value, minSpacing, { horizontal , minRotation }) { + const rad = toRadians(minRotation); + const ratio = (horizontal ? Math.sin(rad) : Math.cos(rad)) || 0.001; + const length = 0.75 * minSpacing * ('' + value).length; + return Math.min(minSpacing / ratio, length); +} +class LinearScaleBase extends Scale { + constructor(cfg){ + super(cfg); + this.start = undefined; + this.end = undefined; + this._startValue = undefined; + this._endValue = undefined; + this._valueRange = 0; + } + parse(raw, index) { + if (isNullOrUndef(raw)) { + return null; + } + if ((typeof raw === 'number' || raw instanceof Number) && !isFinite(+raw)) { + return null; + } + return +raw; + } + handleTickRangeOptions() { + const { beginAtZero } = this.options; + const { minDefined , maxDefined } = this.getUserBounds(); + let { min , max } = this; + const setMin = (v)=>min = minDefined ? min : v; + const setMax = (v)=>max = maxDefined ? max : v; + if (beginAtZero) { + const minSign = sign(min); + const maxSign = sign(max); + if (minSign < 0 && maxSign < 0) { + setMax(0); + } else if (minSign > 0 && maxSign > 0) { + setMin(0); + } + } + if (min === max) { + let offset = max === 0 ? 1 : Math.abs(max * 0.05); + setMax(max + offset); + if (!beginAtZero) { + setMin(min - offset); + } + } + this.min = min; + this.max = max; + } + getTickLimit() { + const tickOpts = this.options.ticks; + let { maxTicksLimit , stepSize } = tickOpts; + let maxTicks; + if (stepSize) { + maxTicks = Math.ceil(this.max / stepSize) - Math.floor(this.min / stepSize) + 1; + if (maxTicks > 1000) { + console.warn(`scales.${this.id}.ticks.stepSize: ${stepSize} would result generating up to ${maxTicks} ticks. Limiting to 1000.`); + maxTicks = 1000; + } + } else { + maxTicks = this.computeTickLimit(); + maxTicksLimit = maxTicksLimit || 11; + } + if (maxTicksLimit) { + maxTicks = Math.min(maxTicksLimit, maxTicks); + } + return maxTicks; + } + computeTickLimit() { + return Number.POSITIVE_INFINITY; + } + buildTicks() { + const opts = this.options; + const tickOpts = opts.ticks; + let maxTicks = this.getTickLimit(); + maxTicks = Math.max(2, maxTicks); + const numericGeneratorOptions = { + maxTicks, + bounds: opts.bounds, + min: opts.min, + max: opts.max, + precision: tickOpts.precision, + step: tickOpts.stepSize, + count: tickOpts.count, + maxDigits: this._maxDigits(), + horizontal: this.isHorizontal(), + minRotation: tickOpts.minRotation || 0, + includeBounds: tickOpts.includeBounds !== false + }; + const dataRange = this._range || this; + const ticks = generateTicks$1(numericGeneratorOptions, dataRange); + if (opts.bounds === 'ticks') { + _setMinAndMaxByKey(ticks, this, 'value'); + } + if (opts.reverse) { + ticks.reverse(); + this.start = this.max; + this.end = this.min; + } else { + this.start = this.min; + this.end = this.max; + } + return ticks; + } + configure() { + const ticks = this.ticks; + let start = this.min; + let end = this.max; + super.configure(); + if (this.options.offset && ticks.length) { + const offset = (end - start) / Math.max(ticks.length - 1, 1) / 2; + start -= offset; + end += offset; + } + this._startValue = start; + this._endValue = end; + this._valueRange = end - start; + } + getLabelForValue(value) { + return formatNumber(value, this.chart.options.locale, this.options.ticks.format); } - this._startValue = start; - this._endValue = end; - this._valueRange = end - start; - } - getLabelForValue(value) { - return formatNumber(value, this.chart.options.locale, this.options.ticks.format); - } } class LinearScale extends LinearScaleBase { - determineDataLimits() { - const {min, max} = this.getMinMax(true); - this.min = isNumberFinite(min) ? min : 0; - this.max = isNumberFinite(max) ? max : 1; - this.handleTickRangeOptions(); - } - computeTickLimit() { - const horizontal = this.isHorizontal(); - const length = horizontal ? this.width : this.height; - const minRotation = toRadians(this.options.ticks.minRotation); - const ratio = (horizontal ? Math.sin(minRotation) : Math.cos(minRotation)) || 0.001; - const tickFont = this._resolveTickFontOptions(0); - return Math.ceil(length / Math.min(40, tickFont.lineHeight / ratio)); - } - getPixelForValue(value) { - return value === null ? NaN : this.getPixelForDecimal((value - this._startValue) / this._valueRange); - } - getValueForPixel(pixel) { - return this._startValue + this.getDecimalForPixel(pixel) * this._valueRange; - } -} -LinearScale.id = 'linear'; -LinearScale.defaults = { - ticks: { - callback: Ticks.formatters.numeric - } -}; - -function isMajor(tickVal) { - const remain = tickVal / (Math.pow(10, Math.floor(log10(tickVal)))); - return remain === 1; -} -function generateTicks(generationOptions, dataRange) { - const endExp = Math.floor(log10(dataRange.max)); - const endSignificand = Math.ceil(dataRange.max / Math.pow(10, endExp)); - const ticks = []; - let tickVal = finiteOrDefault(generationOptions.min, Math.pow(10, Math.floor(log10(dataRange.min)))); - let exp = Math.floor(log10(tickVal)); - let significand = Math.floor(tickVal / Math.pow(10, exp)); - let precision = exp < 0 ? Math.pow(10, Math.abs(exp)) : 1; - do { - ticks.push({value: tickVal, major: isMajor(tickVal)}); - ++significand; - if (significand === 10) { - significand = 1; - ++exp; - precision = exp >= 0 ? 1 : precision; + static id = 'linear'; + static defaults = { + ticks: { + callback: Ticks.formatters.numeric + } + }; + determineDataLimits() { + const { min , max } = this.getMinMax(true); + this.min = isNumberFinite(min) ? min : 0; + this.max = isNumberFinite(max) ? max : 1; + this.handleTickRangeOptions(); } - tickVal = Math.round(significand * Math.pow(10, exp) * precision) / precision; - } while (exp < endExp || (exp === endExp && significand < endSignificand)); - const lastTick = finiteOrDefault(generationOptions.max, tickVal); - ticks.push({value: lastTick, major: isMajor(tickVal)}); - return ticks; + computeTickLimit() { + const horizontal = this.isHorizontal(); + const length = horizontal ? this.width : this.height; + const minRotation = toRadians(this.options.ticks.minRotation); + const ratio = (horizontal ? Math.sin(minRotation) : Math.cos(minRotation)) || 0.001; + const tickFont = this._resolveTickFontOptions(0); + return Math.ceil(length / Math.min(40, tickFont.lineHeight / ratio)); + } + getPixelForValue(value) { + return value === null ? NaN : this.getPixelForDecimal((value - this._startValue) / this._valueRange); + } + getValueForPixel(pixel) { + return this._startValue + this.getDecimalForPixel(pixel) * this._valueRange; + } +} + +const log10Floor = (v)=>Math.floor(log10(v)); +const changeExponent = (v, m)=>Math.pow(10, log10Floor(v) + m); +function isMajor(tickVal) { + const remain = tickVal / Math.pow(10, log10Floor(tickVal)); + return remain === 1; +} +function steps(min, max, rangeExp) { + const rangeStep = Math.pow(10, rangeExp); + const start = Math.floor(min / rangeStep); + const end = Math.ceil(max / rangeStep); + return end - start; +} +function startExp(min, max) { + const range = max - min; + let rangeExp = log10Floor(range); + while(steps(min, max, rangeExp) > 10){ + rangeExp++; + } + while(steps(min, max, rangeExp) < 10){ + rangeExp--; + } + return Math.min(rangeExp, log10Floor(min)); +} + function generateTicks(generationOptions, { min , max }) { + min = finiteOrDefault(generationOptions.min, min); + const ticks = []; + const minExp = log10Floor(min); + let exp = startExp(min, max); + let precision = exp < 0 ? Math.pow(10, Math.abs(exp)) : 1; + const stepSize = Math.pow(10, exp); + const base = minExp > exp ? Math.pow(10, minExp) : 0; + const start = Math.round((min - base) * precision) / precision; + const offset = Math.floor((min - base) / stepSize / 10) * stepSize * 10; + let significand = Math.floor((start - offset) / Math.pow(10, exp)); + let value = finiteOrDefault(generationOptions.min, Math.round((base + offset + significand * Math.pow(10, exp)) * precision) / precision); + while(value < max){ + ticks.push({ + value, + major: isMajor(value), + significand + }); + if (significand >= 10) { + significand = significand < 15 ? 15 : 20; + } else { + significand++; + } + if (significand >= 20) { + exp++; + significand = 2; + precision = exp >= 0 ? 1 : precision; + } + value = Math.round((base + offset + significand * Math.pow(10, exp)) * precision) / precision; + } + const lastTick = finiteOrDefault(generationOptions.max, value); + ticks.push({ + value: lastTick, + major: isMajor(lastTick), + significand + }); + return ticks; } class LogarithmicScale extends Scale { - constructor(cfg) { - super(cfg); - this.start = undefined; - this.end = undefined; - this._startValue = undefined; - this._valueRange = 0; - } - parse(raw, index) { - const value = LinearScaleBase.prototype.parse.apply(this, [raw, index]); - if (value === 0) { - this._zero = true; - return undefined; - } - return isNumberFinite(value) && value > 0 ? value : null; - } - determineDataLimits() { - const {min, max} = this.getMinMax(true); - this.min = isNumberFinite(min) ? Math.max(0, min) : null; - this.max = isNumberFinite(max) ? Math.max(0, max) : null; - if (this.options.beginAtZero) { - this._zero = true; - } - this.handleTickRangeOptions(); - } - handleTickRangeOptions() { - const {minDefined, maxDefined} = this.getUserBounds(); - let min = this.min; - let max = this.max; - const setMin = v => (min = minDefined ? min : v); - const setMax = v => (max = maxDefined ? max : v); - const exp = (v, m) => Math.pow(10, Math.floor(log10(v)) + m); - if (min === max) { - if (min <= 0) { - setMin(1); - setMax(10); - } else { - setMin(exp(min, -1)); - setMax(exp(max, +1)); - } - } - if (min <= 0) { - setMin(exp(max, -1)); - } - if (max <= 0) { - setMax(exp(min, +1)); - } - if (this._zero && this.min !== this._suggestedMin && min === exp(this.min, 0)) { - setMin(exp(min, -1)); - } - this.min = min; - this.max = max; - } - buildTicks() { - const opts = this.options; - const generationOptions = { - min: this._userMin, - max: this._userMax + static id = 'logarithmic'; + static defaults = { + ticks: { + callback: Ticks.formatters.logarithmic, + major: { + enabled: true + } + } }; - const ticks = generateTicks(generationOptions, this); - if (opts.bounds === 'ticks') { - _setMinAndMaxByKey(ticks, this, 'value'); + constructor(cfg){ + super(cfg); + this.start = undefined; + this.end = undefined; + this._startValue = undefined; + this._valueRange = 0; } - if (opts.reverse) { - ticks.reverse(); - this.start = this.max; - this.end = this.min; - } else { - this.start = this.min; - this.end = this.max; + parse(raw, index) { + const value = LinearScaleBase.prototype.parse.apply(this, [ + raw, + index + ]); + if (value === 0) { + this._zero = true; + return undefined; + } + return isNumberFinite(value) && value > 0 ? value : null; } - return ticks; - } - getLabelForValue(value) { - return value === undefined - ? '0' - : formatNumber(value, this.chart.options.locale, this.options.ticks.format); - } - configure() { - const start = this.min; - super.configure(); - this._startValue = log10(start); - this._valueRange = log10(this.max) - log10(start); - } - getPixelForValue(value) { - if (value === undefined || value === 0) { - value = this.min; + determineDataLimits() { + const { min , max } = this.getMinMax(true); + this.min = isNumberFinite(min) ? Math.max(0, min) : null; + this.max = isNumberFinite(max) ? Math.max(0, max) : null; + if (this.options.beginAtZero) { + this._zero = true; + } + if (this._zero && this.min !== this._suggestedMin && !isNumberFinite(this._userMin)) { + this.min = min === changeExponent(this.min, 0) ? changeExponent(this.min, -1) : changeExponent(this.min, 0); + } + this.handleTickRangeOptions(); } - if (value === null || isNaN(value)) { - return NaN; + handleTickRangeOptions() { + const { minDefined , maxDefined } = this.getUserBounds(); + let min = this.min; + let max = this.max; + const setMin = (v)=>min = minDefined ? min : v; + const setMax = (v)=>max = maxDefined ? max : v; + if (min === max) { + if (min <= 0) { + setMin(1); + setMax(10); + } else { + setMin(changeExponent(min, -1)); + setMax(changeExponent(max, +1)); + } + } + if (min <= 0) { + setMin(changeExponent(max, -1)); + } + if (max <= 0) { + setMax(changeExponent(min, +1)); + } + this.min = min; + this.max = max; + } + buildTicks() { + const opts = this.options; + const generationOptions = { + min: this._userMin, + max: this._userMax + }; + const ticks = generateTicks(generationOptions, this); + if (opts.bounds === 'ticks') { + _setMinAndMaxByKey(ticks, this, 'value'); + } + if (opts.reverse) { + ticks.reverse(); + this.start = this.max; + this.end = this.min; + } else { + this.start = this.min; + this.end = this.max; + } + return ticks; + } + getLabelForValue(value) { + return value === undefined ? '0' : formatNumber(value, this.chart.options.locale, this.options.ticks.format); + } + configure() { + const start = this.min; + super.configure(); + this._startValue = log10(start); + this._valueRange = log10(this.max) - log10(start); + } + getPixelForValue(value) { + if (value === undefined || value === 0) { + value = this.min; + } + if (value === null || isNaN(value)) { + return NaN; + } + return this.getPixelForDecimal(value === this.min ? 0 : (log10(value) - this._startValue) / this._valueRange); + } + getValueForPixel(pixel) { + const decimal = this.getDecimalForPixel(pixel); + return Math.pow(10, this._startValue + decimal * this._valueRange); } - return this.getPixelForDecimal(value === this.min - ? 0 - : (log10(value) - this._startValue) / this._valueRange); - } - getValueForPixel(pixel) { - const decimal = this.getDecimalForPixel(pixel); - return Math.pow(10, this._startValue + decimal * this._valueRange); - } } -LogarithmicScale.id = 'logarithmic'; -LogarithmicScale.defaults = { - ticks: { - callback: Ticks.formatters.logarithmic, - major: { - enabled: true - } - } -}; function getTickBackdropHeight(opts) { - const tickOpts = opts.ticks; - if (tickOpts.display && opts.display) { - const padding = toPadding(tickOpts.backdropPadding); - return valueOrDefault(tickOpts.font && tickOpts.font.size, defaults.font.size) + padding.height; - } - return 0; + const tickOpts = opts.ticks; + if (tickOpts.display && opts.display) { + const padding = toPadding(tickOpts.backdropPadding); + return valueOrDefault(tickOpts.font && tickOpts.font.size, defaults.font.size) + padding.height; + } + return 0; } function measureLabelSize(ctx, font, label) { - label = isArray(label) ? label : [label]; - return { - w: _longestText(ctx, font.string, label), - h: label.length * font.lineHeight - }; + label = isArray(label) ? label : [ + label + ]; + return { + w: _longestText(ctx, font.string, label), + h: label.length * font.lineHeight + }; } function determineLimits(angle, pos, size, min, max) { - if (angle === min || angle === max) { + if (angle === min || angle === max) { + return { + start: pos - size / 2, + end: pos + size / 2 + }; + } else if (angle < min || angle > max) { + return { + start: pos - size, + end: pos + }; + } return { - start: pos - (size / 2), - end: pos + (size / 2) + start: pos, + end: pos + size }; - } else if (angle < min || angle > max) { - return { - start: pos - size, - end: pos - }; - } - return { - start: pos, - end: pos + size - }; } -function fitWithPointLabels(scale) { - const orig = { - l: scale.left + scale._padding.left, - r: scale.right - scale._padding.right, - t: scale.top + scale._padding.top, - b: scale.bottom - scale._padding.bottom - }; - const limits = Object.assign({}, orig); - const labelSizes = []; - const padding = []; - const valueCount = scale._pointLabels.length; - const pointLabelOpts = scale.options.pointLabels; - const additionalAngle = pointLabelOpts.centerPointLabels ? PI / valueCount : 0; - for (let i = 0; i < valueCount; i++) { - const opts = pointLabelOpts.setContext(scale.getPointLabelContext(i)); - padding[i] = opts.padding; - const pointPosition = scale.getPointPosition(i, scale.drawingArea + padding[i], additionalAngle); - const plFont = toFont(opts.font); - const textSize = measureLabelSize(scale.ctx, plFont, scale._pointLabels[i]); - labelSizes[i] = textSize; - const angleRadians = _normalizeAngle(scale.getIndexAngle(i) + additionalAngle); - const angle = Math.round(toDegrees(angleRadians)); - const hLimits = determineLimits(angle, pointPosition.x, textSize.w, 0, 180); - const vLimits = determineLimits(angle, pointPosition.y, textSize.h, 90, 270); - updateLimits(limits, orig, angleRadians, hLimits, vLimits); - } - scale.setCenterPoint( - orig.l - limits.l, - limits.r - orig.r, - orig.t - limits.t, - limits.b - orig.b - ); - scale._pointLabelItems = buildPointLabelItems(scale, labelSizes, padding); + function fitWithPointLabels(scale) { + const orig = { + l: scale.left + scale._padding.left, + r: scale.right - scale._padding.right, + t: scale.top + scale._padding.top, + b: scale.bottom - scale._padding.bottom + }; + const limits = Object.assign({}, orig); + const labelSizes = []; + const padding = []; + const valueCount = scale._pointLabels.length; + const pointLabelOpts = scale.options.pointLabels; + const additionalAngle = pointLabelOpts.centerPointLabels ? PI / valueCount : 0; + for(let i = 0; i < valueCount; i++){ + const opts = pointLabelOpts.setContext(scale.getPointLabelContext(i)); + padding[i] = opts.padding; + const pointPosition = scale.getPointPosition(i, scale.drawingArea + padding[i], additionalAngle); + const plFont = toFont(opts.font); + const textSize = measureLabelSize(scale.ctx, plFont, scale._pointLabels[i]); + labelSizes[i] = textSize; + const angleRadians = _normalizeAngle(scale.getIndexAngle(i) + additionalAngle); + const angle = Math.round(toDegrees(angleRadians)); + const hLimits = determineLimits(angle, pointPosition.x, textSize.w, 0, 180); + const vLimits = determineLimits(angle, pointPosition.y, textSize.h, 90, 270); + updateLimits(limits, orig, angleRadians, hLimits, vLimits); + } + scale.setCenterPoint(orig.l - limits.l, limits.r - orig.r, orig.t - limits.t, limits.b - orig.b); + scale._pointLabelItems = buildPointLabelItems(scale, labelSizes, padding); } function updateLimits(limits, orig, angle, hLimits, vLimits) { - const sin = Math.abs(Math.sin(angle)); - const cos = Math.abs(Math.cos(angle)); - let x = 0; - let y = 0; - if (hLimits.start < orig.l) { - x = (orig.l - hLimits.start) / sin; - limits.l = Math.min(limits.l, orig.l - x); - } else if (hLimits.end > orig.r) { - x = (hLimits.end - orig.r) / sin; - limits.r = Math.max(limits.r, orig.r + x); - } - if (vLimits.start < orig.t) { - y = (orig.t - vLimits.start) / cos; - limits.t = Math.min(limits.t, orig.t - y); - } else if (vLimits.end > orig.b) { - y = (vLimits.end - orig.b) / cos; - limits.b = Math.max(limits.b, orig.b + y); - } + const sin = Math.abs(Math.sin(angle)); + const cos = Math.abs(Math.cos(angle)); + let x = 0; + let y = 0; + if (hLimits.start < orig.l) { + x = (orig.l - hLimits.start) / sin; + limits.l = Math.min(limits.l, orig.l - x); + } else if (hLimits.end > orig.r) { + x = (hLimits.end - orig.r) / sin; + limits.r = Math.max(limits.r, orig.r + x); + } + if (vLimits.start < orig.t) { + y = (orig.t - vLimits.start) / cos; + limits.t = Math.min(limits.t, orig.t - y); + } else if (vLimits.end > orig.b) { + y = (vLimits.end - orig.b) / cos; + limits.b = Math.max(limits.b, orig.b + y); + } } function buildPointLabelItems(scale, labelSizes, padding) { - const items = []; - const valueCount = scale._pointLabels.length; - const opts = scale.options; - const extra = getTickBackdropHeight(opts) / 2; - const outerDistance = scale.drawingArea; - const additionalAngle = opts.pointLabels.centerPointLabels ? PI / valueCount : 0; - for (let i = 0; i < valueCount; i++) { - const pointLabelPosition = scale.getPointPosition(i, outerDistance + extra + padding[i], additionalAngle); - const angle = Math.round(toDegrees(_normalizeAngle(pointLabelPosition.angle + HALF_PI))); - const size = labelSizes[i]; - const y = yForAngle(pointLabelPosition.y, size.h, angle); - const textAlign = getTextAlignForAngle(angle); - const left = leftForTextAlign(pointLabelPosition.x, size.w, textAlign); - items.push({ - x: pointLabelPosition.x, - y, - textAlign, - left, - top: y, - right: left + size.w, - bottom: y + size.h - }); - } - return items; + const items = []; + const valueCount = scale._pointLabels.length; + const opts = scale.options; + const extra = getTickBackdropHeight(opts) / 2; + const outerDistance = scale.drawingArea; + const additionalAngle = opts.pointLabels.centerPointLabels ? PI / valueCount : 0; + for(let i = 0; i < valueCount; i++){ + const pointLabelPosition = scale.getPointPosition(i, outerDistance + extra + padding[i], additionalAngle); + const angle = Math.round(toDegrees(_normalizeAngle(pointLabelPosition.angle + HALF_PI))); + const size = labelSizes[i]; + const y = yForAngle(pointLabelPosition.y, size.h, angle); + const textAlign = getTextAlignForAngle(angle); + const left = leftForTextAlign(pointLabelPosition.x, size.w, textAlign); + items.push({ + x: pointLabelPosition.x, + y, + textAlign, + left, + top: y, + right: left + size.w, + bottom: y + size.h + }); + } + return items; } function getTextAlignForAngle(angle) { - if (angle === 0 || angle === 180) { - return 'center'; - } else if (angle < 180) { - return 'left'; - } - return 'right'; + if (angle === 0 || angle === 180) { + return 'center'; + } else if (angle < 180) { + return 'left'; + } + return 'right'; } function leftForTextAlign(x, w, align) { - if (align === 'right') { - x -= w; - } else if (align === 'center') { - x -= (w / 2); - } - return x; + if (align === 'right') { + x -= w; + } else if (align === 'center') { + x -= w / 2; + } + return x; } function yForAngle(y, h, angle) { - if (angle === 90 || angle === 270) { - y -= (h / 2); - } else if (angle > 270 || angle < 90) { - y -= h; - } - return y; + if (angle === 90 || angle === 270) { + y -= h / 2; + } else if (angle > 270 || angle < 90) { + y -= h; + } + return y; } function drawPointLabels(scale, labelCount) { - const {ctx, options: {pointLabels}} = scale; - for (let i = labelCount - 1; i >= 0; i--) { - const optsAtIndex = pointLabels.setContext(scale.getPointLabelContext(i)); - const plFont = toFont(optsAtIndex.font); - const {x, y, textAlign, left, top, right, bottom} = scale._pointLabelItems[i]; - const {backdropColor} = optsAtIndex; - if (!isNullOrUndef(backdropColor)) { - const borderRadius = toTRBLCorners(optsAtIndex.borderRadius); - const padding = toPadding(optsAtIndex.backdropPadding); - ctx.fillStyle = backdropColor; - const backdropLeft = left - padding.left; - const backdropTop = top - padding.top; - const backdropWidth = right - left + padding.width; - const backdropHeight = bottom - top + padding.height; - if (Object.values(borderRadius).some(v => v !== 0)) { - ctx.beginPath(); - addRoundedRectPath(ctx, { - x: backdropLeft, - y: backdropTop, - w: backdropWidth, - h: backdropHeight, - radius: borderRadius, + const { ctx , options: { pointLabels } } = scale; + for(let i = labelCount - 1; i >= 0; i--){ + const optsAtIndex = pointLabels.setContext(scale.getPointLabelContext(i)); + const plFont = toFont(optsAtIndex.font); + const { x , y , textAlign , left , top , right , bottom } = scale._pointLabelItems[i]; + const { backdropColor } = optsAtIndex; + if (!isNullOrUndef(backdropColor)) { + const borderRadius = toTRBLCorners(optsAtIndex.borderRadius); + const padding = toPadding(optsAtIndex.backdropPadding); + ctx.fillStyle = backdropColor; + const backdropLeft = left - padding.left; + const backdropTop = top - padding.top; + const backdropWidth = right - left + padding.width; + const backdropHeight = bottom - top + padding.height; + if (Object.values(borderRadius).some((v)=>v !== 0)) { + ctx.beginPath(); + addRoundedRectPath(ctx, { + x: backdropLeft, + y: backdropTop, + w: backdropWidth, + h: backdropHeight, + radius: borderRadius + }); + ctx.fill(); + } else { + ctx.fillRect(backdropLeft, backdropTop, backdropWidth, backdropHeight); + } + } + renderText(ctx, scale._pointLabels[i], x, y + plFont.lineHeight / 2, plFont, { + color: optsAtIndex.color, + textAlign: textAlign, + textBaseline: 'middle' }); - ctx.fill(); - } else { - ctx.fillRect(backdropLeft, backdropTop, backdropWidth, backdropHeight); - } } - renderText( - ctx, - scale._pointLabels[i], - x, - y + (plFont.lineHeight / 2), - plFont, - { - color: optsAtIndex.color, - textAlign: textAlign, - textBaseline: 'middle' - } - ); - } } function pathRadiusLine(scale, radius, circular, labelCount) { - const {ctx} = scale; - if (circular) { - ctx.arc(scale.xCenter, scale.yCenter, radius, 0, TAU); - } else { - let pointPosition = scale.getPointPosition(0, radius); - ctx.moveTo(pointPosition.x, pointPosition.y); - for (let i = 1; i < labelCount; i++) { - pointPosition = scale.getPointPosition(i, radius); - ctx.lineTo(pointPosition.x, pointPosition.y); + const { ctx } = scale; + if (circular) { + ctx.arc(scale.xCenter, scale.yCenter, radius, 0, TAU); + } else { + let pointPosition = scale.getPointPosition(0, radius); + ctx.moveTo(pointPosition.x, pointPosition.y); + for(let i = 1; i < labelCount; i++){ + pointPosition = scale.getPointPosition(i, radius); + ctx.lineTo(pointPosition.x, pointPosition.y); + } } - } } -function drawRadiusLine(scale, gridLineOpts, radius, labelCount) { - const ctx = scale.ctx; - const circular = gridLineOpts.circular; - const {color, lineWidth} = gridLineOpts; - if ((!circular && !labelCount) || !color || !lineWidth || radius < 0) { - return; - } - ctx.save(); - ctx.strokeStyle = color; - ctx.lineWidth = lineWidth; - ctx.setLineDash(gridLineOpts.borderDash); - ctx.lineDashOffset = gridLineOpts.borderDashOffset; - ctx.beginPath(); - pathRadiusLine(scale, radius, circular, labelCount); - ctx.closePath(); - ctx.stroke(); - ctx.restore(); +function drawRadiusLine(scale, gridLineOpts, radius, labelCount, borderOpts) { + const ctx = scale.ctx; + const circular = gridLineOpts.circular; + const { color , lineWidth } = gridLineOpts; + if (!circular && !labelCount || !color || !lineWidth || radius < 0) { + return; + } + ctx.save(); + ctx.strokeStyle = color; + ctx.lineWidth = lineWidth; + ctx.setLineDash(borderOpts.dash); + ctx.lineDashOffset = borderOpts.dashOffset; + ctx.beginPath(); + pathRadiusLine(scale, radius, circular, labelCount); + ctx.closePath(); + ctx.stroke(); + ctx.restore(); } function createPointLabelContext(parent, index, label) { - return createContext(parent, { - label, - index, - type: 'pointLabel' - }); + return createContext(parent, { + label, + index, + type: 'pointLabel' + }); } class RadialLinearScale extends LinearScaleBase { - constructor(cfg) { - super(cfg); - this.xCenter = undefined; - this.yCenter = undefined; - this.drawingArea = undefined; - this._pointLabels = []; - this._pointLabelItems = []; - } - setDimensions() { - const padding = this._padding = toPadding(getTickBackdropHeight(this.options) / 2); - const w = this.width = this.maxWidth - padding.width; - const h = this.height = this.maxHeight - padding.height; - this.xCenter = Math.floor(this.left + w / 2 + padding.left); - this.yCenter = Math.floor(this.top + h / 2 + padding.top); - this.drawingArea = Math.floor(Math.min(w, h) / 2); - } - determineDataLimits() { - const {min, max} = this.getMinMax(false); - this.min = isNumberFinite(min) && !isNaN(min) ? min : 0; - this.max = isNumberFinite(max) && !isNaN(max) ? max : 0; - this.handleTickRangeOptions(); - } - computeTickLimit() { - return Math.ceil(this.drawingArea / getTickBackdropHeight(this.options)); - } - generateTickLabels(ticks) { - LinearScaleBase.prototype.generateTickLabels.call(this, ticks); - this._pointLabels = this.getLabels() - .map((value, index) => { - const label = callback(this.options.pointLabels.callback, [value, index], this); - return label || label === 0 ? label : ''; - }) - .filter((v, i) => this.chart.getDataVisibility(i)); - } - fit() { - const opts = this.options; - if (opts.display && opts.pointLabels.display) { - fitWithPointLabels(this); - } else { - this.setCenterPoint(0, 0, 0, 0); - } - } - setCenterPoint(leftMovement, rightMovement, topMovement, bottomMovement) { - this.xCenter += Math.floor((leftMovement - rightMovement) / 2); - this.yCenter += Math.floor((topMovement - bottomMovement) / 2); - this.drawingArea -= Math.min(this.drawingArea / 2, Math.max(leftMovement, rightMovement, topMovement, bottomMovement)); - } - getIndexAngle(index) { - const angleMultiplier = TAU / (this._pointLabels.length || 1); - const startAngle = this.options.startAngle || 0; - return _normalizeAngle(index * angleMultiplier + toRadians(startAngle)); - } - getDistanceFromCenterForValue(value) { - if (isNullOrUndef(value)) { - return NaN; - } - const scalingFactor = this.drawingArea / (this.max - this.min); - if (this.options.reverse) { - return (this.max - value) * scalingFactor; - } - return (value - this.min) * scalingFactor; - } - getValueForDistanceFromCenter(distance) { - if (isNullOrUndef(distance)) { - return NaN; - } - const scaledDistance = distance / (this.drawingArea / (this.max - this.min)); - return this.options.reverse ? this.max - scaledDistance : this.min + scaledDistance; - } - getPointLabelContext(index) { - const pointLabels = this._pointLabels || []; - if (index >= 0 && index < pointLabels.length) { - const pointLabel = pointLabels[index]; - return createPointLabelContext(this.getContext(), index, pointLabel); - } - } - getPointPosition(index, distanceFromCenter, additionalAngle = 0) { - const angle = this.getIndexAngle(index) - HALF_PI + additionalAngle; - return { - x: Math.cos(angle) * distanceFromCenter + this.xCenter, - y: Math.sin(angle) * distanceFromCenter + this.yCenter, - angle - }; - } - getPointPositionForValue(index, value) { - return this.getPointPosition(index, this.getDistanceFromCenterForValue(value)); - } - getBasePosition(index) { - return this.getPointPositionForValue(index || 0, this.getBaseValue()); - } - getPointLabelPosition(index) { - const {left, top, right, bottom} = this._pointLabelItems[index]; - return { - left, - top, - right, - bottom, - }; - } - drawBackground() { - const {backgroundColor, grid: {circular}} = this.options; - if (backgroundColor) { - const ctx = this.ctx; - ctx.save(); - ctx.beginPath(); - pathRadiusLine(this, this.getDistanceFromCenterForValue(this._endValue), circular, this._pointLabels.length); - ctx.closePath(); - ctx.fillStyle = backgroundColor; - ctx.fill(); - ctx.restore(); - } - } - drawGrid() { - const ctx = this.ctx; - const opts = this.options; - const {angleLines, grid} = opts; - const labelCount = this._pointLabels.length; - let i, offset, position; - if (opts.pointLabels.display) { - drawPointLabels(this, labelCount); - } - if (grid.display) { - this.ticks.forEach((tick, index) => { - if (index !== 0) { - offset = this.getDistanceFromCenterForValue(tick.value); - const optsAtIndex = grid.setContext(this.getContext(index - 1)); - drawRadiusLine(this, optsAtIndex, offset, labelCount); + static id = 'radialLinear'; + static defaults = { + display: true, + animate: true, + position: 'chartArea', + angleLines: { + display: true, + lineWidth: 1, + borderDash: [], + borderDashOffset: 0.0 + }, + grid: { + circular: false + }, + startAngle: 0, + ticks: { + showLabelBackdrop: true, + callback: Ticks.formatters.numeric + }, + pointLabels: { + backdropColor: undefined, + backdropPadding: 2, + display: true, + font: { + size: 10 + }, + callback (label) { + return label; + }, + padding: 5, + centerPointLabels: false } - }); - } - if (angleLines.display) { - ctx.save(); - for (i = labelCount - 1; i >= 0; i--) { - const optsAtIndex = angleLines.setContext(this.getPointLabelContext(i)); - const {color, lineWidth} = optsAtIndex; - if (!lineWidth || !color) { - continue; + }; + static defaultRoutes = { + 'angleLines.color': 'borderColor', + 'pointLabels.color': 'color', + 'ticks.color': 'color' + }; + static descriptors = { + angleLines: { + _fallback: 'grid' } - ctx.lineWidth = lineWidth; - ctx.strokeStyle = color; - ctx.setLineDash(optsAtIndex.borderDash); - ctx.lineDashOffset = optsAtIndex.borderDashOffset; - offset = this.getDistanceFromCenterForValue(opts.ticks.reverse ? this.min : this.max); - position = this.getPointPosition(i, offset); - ctx.beginPath(); - ctx.moveTo(this.xCenter, this.yCenter); - ctx.lineTo(position.x, position.y); - ctx.stroke(); - } - ctx.restore(); + }; + constructor(cfg){ + super(cfg); + this.xCenter = undefined; + this.yCenter = undefined; + this.drawingArea = undefined; + this._pointLabels = []; + this._pointLabelItems = []; } - } - drawBorder() {} - drawLabels() { - const ctx = this.ctx; - const opts = this.options; - const tickOpts = opts.ticks; - if (!tickOpts.display) { - return; + setDimensions() { + const padding = this._padding = toPadding(getTickBackdropHeight(this.options) / 2); + const w = this.width = this.maxWidth - padding.width; + const h = this.height = this.maxHeight - padding.height; + this.xCenter = Math.floor(this.left + w / 2 + padding.left); + this.yCenter = Math.floor(this.top + h / 2 + padding.top); + this.drawingArea = Math.floor(Math.min(w, h) / 2); } - const startAngle = this.getIndexAngle(0); - let offset, width; - ctx.save(); - ctx.translate(this.xCenter, this.yCenter); - ctx.rotate(startAngle); - ctx.textAlign = 'center'; - ctx.textBaseline = 'middle'; - this.ticks.forEach((tick, index) => { - if (index === 0 && !opts.reverse) { - return; - } - const optsAtIndex = tickOpts.setContext(this.getContext(index)); - const tickFont = toFont(optsAtIndex.font); - offset = this.getDistanceFromCenterForValue(this.ticks[index].value); - if (optsAtIndex.showLabelBackdrop) { - ctx.font = tickFont.string; - width = ctx.measureText(tick.label).width; - ctx.fillStyle = optsAtIndex.backdropColor; - const padding = toPadding(optsAtIndex.backdropPadding); - ctx.fillRect( - -width / 2 - padding.left, - -offset - tickFont.size / 2 - padding.top, - width + padding.width, - tickFont.size + padding.height - ); - } - renderText(ctx, tick.label, 0, -offset, tickFont, { - color: optsAtIndex.color, - }); - }); - ctx.restore(); - } - drawTitle() {} + determineDataLimits() { + const { min , max } = this.getMinMax(false); + this.min = isNumberFinite(min) && !isNaN(min) ? min : 0; + this.max = isNumberFinite(max) && !isNaN(max) ? max : 0; + this.handleTickRangeOptions(); + } + computeTickLimit() { + return Math.ceil(this.drawingArea / getTickBackdropHeight(this.options)); + } + generateTickLabels(ticks) { + LinearScaleBase.prototype.generateTickLabels.call(this, ticks); + this._pointLabels = this.getLabels().map((value, index)=>{ + const label = callback(this.options.pointLabels.callback, [ + value, + index + ], this); + return label || label === 0 ? label : ''; + }).filter((v, i)=>this.chart.getDataVisibility(i)); + } + fit() { + const opts = this.options; + if (opts.display && opts.pointLabels.display) { + fitWithPointLabels(this); + } else { + this.setCenterPoint(0, 0, 0, 0); + } + } + setCenterPoint(leftMovement, rightMovement, topMovement, bottomMovement) { + this.xCenter += Math.floor((leftMovement - rightMovement) / 2); + this.yCenter += Math.floor((topMovement - bottomMovement) / 2); + this.drawingArea -= Math.min(this.drawingArea / 2, Math.max(leftMovement, rightMovement, topMovement, bottomMovement)); + } + getIndexAngle(index) { + const angleMultiplier = TAU / (this._pointLabels.length || 1); + const startAngle = this.options.startAngle || 0; + return _normalizeAngle(index * angleMultiplier + toRadians(startAngle)); + } + getDistanceFromCenterForValue(value) { + if (isNullOrUndef(value)) { + return NaN; + } + const scalingFactor = this.drawingArea / (this.max - this.min); + if (this.options.reverse) { + return (this.max - value) * scalingFactor; + } + return (value - this.min) * scalingFactor; + } + getValueForDistanceFromCenter(distance) { + if (isNullOrUndef(distance)) { + return NaN; + } + const scaledDistance = distance / (this.drawingArea / (this.max - this.min)); + return this.options.reverse ? this.max - scaledDistance : this.min + scaledDistance; + } + getPointLabelContext(index) { + const pointLabels = this._pointLabels || []; + if (index >= 0 && index < pointLabels.length) { + const pointLabel = pointLabels[index]; + return createPointLabelContext(this.getContext(), index, pointLabel); + } + } + getPointPosition(index, distanceFromCenter, additionalAngle = 0) { + const angle = this.getIndexAngle(index) - HALF_PI + additionalAngle; + return { + x: Math.cos(angle) * distanceFromCenter + this.xCenter, + y: Math.sin(angle) * distanceFromCenter + this.yCenter, + angle + }; + } + getPointPositionForValue(index, value) { + return this.getPointPosition(index, this.getDistanceFromCenterForValue(value)); + } + getBasePosition(index) { + return this.getPointPositionForValue(index || 0, this.getBaseValue()); + } + getPointLabelPosition(index) { + const { left , top , right , bottom } = this._pointLabelItems[index]; + return { + left, + top, + right, + bottom + }; + } + drawBackground() { + const { backgroundColor , grid: { circular } } = this.options; + if (backgroundColor) { + const ctx = this.ctx; + ctx.save(); + ctx.beginPath(); + pathRadiusLine(this, this.getDistanceFromCenterForValue(this._endValue), circular, this._pointLabels.length); + ctx.closePath(); + ctx.fillStyle = backgroundColor; + ctx.fill(); + ctx.restore(); + } + } + drawGrid() { + const ctx = this.ctx; + const opts = this.options; + const { angleLines , grid , border } = opts; + const labelCount = this._pointLabels.length; + let i, offset, position; + if (opts.pointLabels.display) { + drawPointLabels(this, labelCount); + } + if (grid.display) { + this.ticks.forEach((tick, index)=>{ + if (index !== 0) { + offset = this.getDistanceFromCenterForValue(tick.value); + const context = this.getContext(index); + const optsAtIndex = grid.setContext(context); + const optsAtIndexBorder = border.setContext(context); + drawRadiusLine(this, optsAtIndex, offset, labelCount, optsAtIndexBorder); + } + }); + } + if (angleLines.display) { + ctx.save(); + for(i = labelCount - 1; i >= 0; i--){ + const optsAtIndex = angleLines.setContext(this.getPointLabelContext(i)); + const { color , lineWidth } = optsAtIndex; + if (!lineWidth || !color) { + continue; + } + ctx.lineWidth = lineWidth; + ctx.strokeStyle = color; + ctx.setLineDash(optsAtIndex.borderDash); + ctx.lineDashOffset = optsAtIndex.borderDashOffset; + offset = this.getDistanceFromCenterForValue(opts.ticks.reverse ? this.min : this.max); + position = this.getPointPosition(i, offset); + ctx.beginPath(); + ctx.moveTo(this.xCenter, this.yCenter); + ctx.lineTo(position.x, position.y); + ctx.stroke(); + } + ctx.restore(); + } + } + drawBorder() {} + drawLabels() { + const ctx = this.ctx; + const opts = this.options; + const tickOpts = opts.ticks; + if (!tickOpts.display) { + return; + } + const startAngle = this.getIndexAngle(0); + let offset, width; + ctx.save(); + ctx.translate(this.xCenter, this.yCenter); + ctx.rotate(startAngle); + ctx.textAlign = 'center'; + ctx.textBaseline = 'middle'; + this.ticks.forEach((tick, index)=>{ + if (index === 0 && !opts.reverse) { + return; + } + const optsAtIndex = tickOpts.setContext(this.getContext(index)); + const tickFont = toFont(optsAtIndex.font); + offset = this.getDistanceFromCenterForValue(this.ticks[index].value); + if (optsAtIndex.showLabelBackdrop) { + ctx.font = tickFont.string; + width = ctx.measureText(tick.label).width; + ctx.fillStyle = optsAtIndex.backdropColor; + const padding = toPadding(optsAtIndex.backdropPadding); + ctx.fillRect(-width / 2 - padding.left, -offset - tickFont.size / 2 - padding.top, width + padding.width, tickFont.size + padding.height); + } + renderText(ctx, tick.label, 0, -offset, tickFont, { + color: optsAtIndex.color + }); + }); + ctx.restore(); + } + drawTitle() {} } -RadialLinearScale.id = 'radialLinear'; -RadialLinearScale.defaults = { - display: true, - animate: true, - position: 'chartArea', - angleLines: { - display: true, - lineWidth: 1, - borderDash: [], - borderDashOffset: 0.0 - }, - grid: { - circular: false - }, - startAngle: 0, - ticks: { - showLabelBackdrop: true, - callback: Ticks.formatters.numeric - }, - pointLabels: { - backdropColor: undefined, - backdropPadding: 2, - display: true, - font: { - size: 10 - }, - callback(label) { - return label; - }, - padding: 5, - centerPointLabels: false - } -}; -RadialLinearScale.defaultRoutes = { - 'angleLines.color': 'borderColor', - 'pointLabels.color': 'color', - 'ticks.color': 'color' -}; -RadialLinearScale.descriptors = { - angleLines: { - _fallback: 'grid' - } -}; const INTERVALS = { - millisecond: {common: true, size: 1, steps: 1000}, - second: {common: true, size: 1000, steps: 60}, - minute: {common: true, size: 60000, steps: 60}, - hour: {common: true, size: 3600000, steps: 24}, - day: {common: true, size: 86400000, steps: 30}, - week: {common: false, size: 604800000, steps: 4}, - month: {common: true, size: 2.628e9, steps: 12}, - quarter: {common: false, size: 7.884e9, steps: 4}, - year: {common: true, size: 3.154e10} + millisecond: { + common: true, + size: 1, + steps: 1000 + }, + second: { + common: true, + size: 1000, + steps: 60 + }, + minute: { + common: true, + size: 60000, + steps: 60 + }, + hour: { + common: true, + size: 3600000, + steps: 24 + }, + day: { + common: true, + size: 86400000, + steps: 30 + }, + week: { + common: false, + size: 604800000, + steps: 4 + }, + month: { + common: true, + size: 2.628e9, + steps: 12 + }, + quarter: { + common: false, + size: 7.884e9, + steps: 4 + }, + year: { + common: true, + size: 3.154e10 + } }; -const UNITS = (Object.keys(INTERVALS)); -function sorter(a, b) { - return a - b; + const UNITS = /* #__PURE__ */ Object.keys(INTERVALS); + function sorter(a, b) { + return a - b; } -function parse(scale, input) { - if (isNullOrUndef(input)) { - return null; - } - const adapter = scale._adapter; - const {parser, round, isoWeekday} = scale._parseOpts; - let value = input; - if (typeof parser === 'function') { - value = parser(value); - } - if (!isNumberFinite(value)) { - value = typeof parser === 'string' - ? adapter.parse(value, parser) - : adapter.parse(value); - } - if (value === null) { - return null; - } - if (round) { - value = round === 'week' && (isNumber(isoWeekday) || isoWeekday === true) - ? adapter.startOf(value, 'isoWeek', isoWeekday) - : adapter.startOf(value, round); - } - return +value; -} -function determineUnitForAutoTicks(minUnit, min, max, capacity) { - const ilen = UNITS.length; - for (let i = UNITS.indexOf(minUnit); i < ilen - 1; ++i) { - const interval = INTERVALS[UNITS[i]]; - const factor = interval.steps ? interval.steps : Number.MAX_SAFE_INTEGER; - if (interval.common && Math.ceil((max - min) / (factor * interval.size)) <= capacity) { - return UNITS[i]; + function parse(scale, input) { + if (isNullOrUndef(input)) { + return null; } - } - return UNITS[ilen - 1]; -} -function determineUnitForFormatting(scale, numTicks, minUnit, min, max) { - for (let i = UNITS.length - 1; i >= UNITS.indexOf(minUnit); i--) { - const unit = UNITS[i]; - if (INTERVALS[unit].common && scale._adapter.diff(max, min, unit) >= numTicks - 1) { - return unit; + const adapter = scale._adapter; + const { parser , round , isoWeekday } = scale._parseOpts; + let value = input; + if (typeof parser === 'function') { + value = parser(value); } - } - return UNITS[minUnit ? UNITS.indexOf(minUnit) : 0]; -} -function determineMajorUnit(unit) { - for (let i = UNITS.indexOf(unit) + 1, ilen = UNITS.length; i < ilen; ++i) { - if (INTERVALS[UNITS[i]].common) { - return UNITS[i]; + if (!isNumberFinite(value)) { + value = typeof parser === 'string' ? adapter.parse(value, parser) : adapter.parse(value); } - } -} -function addTick(ticks, time, timestamps) { - if (!timestamps) { - ticks[time] = true; - } else if (timestamps.length) { - const {lo, hi} = _lookup(timestamps, time); - const timestamp = timestamps[lo] >= time ? timestamps[lo] : timestamps[hi]; - ticks[timestamp] = true; - } -} -function setMajorTicks(scale, ticks, map, majorUnit) { - const adapter = scale._adapter; - const first = +adapter.startOf(ticks[0].value, majorUnit); - const last = ticks[ticks.length - 1].value; - let major, index; - for (major = first; major <= last; major = +adapter.add(major, 1, majorUnit)) { - index = map[major]; - if (index >= 0) { - ticks[index].major = true; + if (value === null) { + return null; } - } - return ticks; + if (round) { + value = round === 'week' && (isNumber(isoWeekday) || isoWeekday === true) ? adapter.startOf(value, 'isoWeek', isoWeekday) : adapter.startOf(value, round); + } + return +value; } -function ticksFromTimestamps(scale, values, majorUnit) { - const ticks = []; - const map = {}; - const ilen = values.length; - let i, value; - for (i = 0; i < ilen; ++i) { - value = values[i]; - map[value] = i; - ticks.push({ - value, - major: false - }); - } - return (ilen === 0 || !majorUnit) ? ticks : setMajorTicks(scale, ticks, map, majorUnit); + function determineUnitForAutoTicks(minUnit, min, max, capacity) { + const ilen = UNITS.length; + for(let i = UNITS.indexOf(minUnit); i < ilen - 1; ++i){ + const interval = INTERVALS[UNITS[i]]; + const factor = interval.steps ? interval.steps : Number.MAX_SAFE_INTEGER; + if (interval.common && Math.ceil((max - min) / (factor * interval.size)) <= capacity) { + return UNITS[i]; + } + } + return UNITS[ilen - 1]; +} + function determineUnitForFormatting(scale, numTicks, minUnit, min, max) { + for(let i = UNITS.length - 1; i >= UNITS.indexOf(minUnit); i--){ + const unit = UNITS[i]; + if (INTERVALS[unit].common && scale._adapter.diff(max, min, unit) >= numTicks - 1) { + return unit; + } + } + return UNITS[minUnit ? UNITS.indexOf(minUnit) : 0]; +} + function determineMajorUnit(unit) { + for(let i = UNITS.indexOf(unit) + 1, ilen = UNITS.length; i < ilen; ++i){ + if (INTERVALS[UNITS[i]].common) { + return UNITS[i]; + } + } +} + function addTick(ticks, time, timestamps) { + if (!timestamps) { + ticks[time] = true; + } else if (timestamps.length) { + const { lo , hi } = _lookup(timestamps, time); + const timestamp = timestamps[lo] >= time ? timestamps[lo] : timestamps[hi]; + ticks[timestamp] = true; + } +} + function setMajorTicks(scale, ticks, map, majorUnit) { + const adapter = scale._adapter; + const first = +adapter.startOf(ticks[0].value, majorUnit); + const last = ticks[ticks.length - 1].value; + let major, index; + for(major = first; major <= last; major = +adapter.add(major, 1, majorUnit)){ + index = map[major]; + if (index >= 0) { + ticks[index].major = true; + } + } + return ticks; +} + function ticksFromTimestamps(scale, values, majorUnit) { + const ticks = []; + const map = {}; + const ilen = values.length; + let i, value; + for(i = 0; i < ilen; ++i){ + value = values[i]; + map[value] = i; + ticks.push({ + value, + major: false + }); + } + return ilen === 0 || !majorUnit ? ticks : setMajorTicks(scale, ticks, map, majorUnit); } class TimeScale extends Scale { - constructor(props) { - super(props); - this._cache = { - data: [], - labels: [], - all: [] + static id = 'time'; + static defaults = { + bounds: 'data', + adapters: {}, + time: { + parser: false, + unit: false, + round: false, + isoWeekday: false, + minUnit: 'millisecond', + displayFormats: {} + }, + ticks: { + source: 'auto', + callback: false, + major: { + enabled: false + } + } }; - this._unit = 'day'; - this._majorUnit = undefined; - this._offsets = {}; - this._normalized = false; - this._parseOpts = undefined; - } - init(scaleOpts, opts) { - const time = scaleOpts.time || (scaleOpts.time = {}); - const adapter = this._adapter = new _adapters._date(scaleOpts.adapters.date); - mergeIf(time.displayFormats, adapter.formats()); - this._parseOpts = { - parser: time.parser, - round: time.round, - isoWeekday: time.isoWeekday - }; - super.init(scaleOpts); - this._normalized = opts.normalized; - } - parse(raw, index) { - if (raw === undefined) { - return null; + constructor(props){ + super(props); + this._cache = { + data: [], + labels: [], + all: [] + }; + this._unit = 'day'; + this._majorUnit = undefined; + this._offsets = {}; + this._normalized = false; + this._parseOpts = undefined; } - return parse(this, raw); - } - beforeLayout() { - super.beforeLayout(); - this._cache = { - data: [], - labels: [], - all: [] - }; - } - determineDataLimits() { - const options = this.options; - const adapter = this._adapter; - const unit = options.time.unit || 'day'; - let {min, max, minDefined, maxDefined} = this.getUserBounds(); - function _applyBounds(bounds) { - if (!minDefined && !isNaN(bounds.min)) { - min = Math.min(min, bounds.min); - } - if (!maxDefined && !isNaN(bounds.max)) { - max = Math.max(max, bounds.max); - } + init(scaleOpts, opts = {}) { + const time = scaleOpts.time || (scaleOpts.time = {}); + const adapter = this._adapter = new _adapters._date(scaleOpts.adapters.date); + adapter.init(opts); + mergeIf(time.displayFormats, adapter.formats()); + this._parseOpts = { + parser: time.parser, + round: time.round, + isoWeekday: time.isoWeekday + }; + super.init(scaleOpts); + this._normalized = opts.normalized; } - if (!minDefined || !maxDefined) { - _applyBounds(this._getLabelBounds()); - if (options.bounds !== 'ticks' || options.ticks.source !== 'labels') { - _applyBounds(this.getMinMax(false)); - } + parse(raw, index) { + if (raw === undefined) { + return null; + } + return parse(this, raw); } - min = isNumberFinite(min) && !isNaN(min) ? min : +adapter.startOf(Date.now(), unit); - max = isNumberFinite(max) && !isNaN(max) ? max : +adapter.endOf(Date.now(), unit) + 1; - this.min = Math.min(min, max - 1); - this.max = Math.max(min + 1, max); - } - _getLabelBounds() { - const arr = this.getLabelTimestamps(); - let min = Number.POSITIVE_INFINITY; - let max = Number.NEGATIVE_INFINITY; - if (arr.length) { - min = arr[0]; - max = arr[arr.length - 1]; + beforeLayout() { + super.beforeLayout(); + this._cache = { + data: [], + labels: [], + all: [] + }; } - return {min, max}; - } - buildTicks() { - const options = this.options; - const timeOpts = options.time; - const tickOpts = options.ticks; - const timestamps = tickOpts.source === 'labels' ? this.getLabelTimestamps() : this._generate(); - if (options.bounds === 'ticks' && timestamps.length) { - this.min = this._userMin || timestamps[0]; - this.max = this._userMax || timestamps[timestamps.length - 1]; + determineDataLimits() { + const options = this.options; + const adapter = this._adapter; + const unit = options.time.unit || 'day'; + let { min , max , minDefined , maxDefined } = this.getUserBounds(); + function _applyBounds(bounds) { + if (!minDefined && !isNaN(bounds.min)) { + min = Math.min(min, bounds.min); + } + if (!maxDefined && !isNaN(bounds.max)) { + max = Math.max(max, bounds.max); + } + } + if (!minDefined || !maxDefined) { + _applyBounds(this._getLabelBounds()); + if (options.bounds !== 'ticks' || options.ticks.source !== 'labels') { + _applyBounds(this.getMinMax(false)); + } + } + min = isNumberFinite(min) && !isNaN(min) ? min : +adapter.startOf(Date.now(), unit); + max = isNumberFinite(max) && !isNaN(max) ? max : +adapter.endOf(Date.now(), unit) + 1; + this.min = Math.min(min, max - 1); + this.max = Math.max(min + 1, max); } - const min = this.min; - const max = this.max; - const ticks = _filterBetween(timestamps, min, max); - this._unit = timeOpts.unit || (tickOpts.autoSkip - ? determineUnitForAutoTicks(timeOpts.minUnit, this.min, this.max, this._getLabelCapacity(min)) - : determineUnitForFormatting(this, ticks.length, timeOpts.minUnit, this.min, this.max)); - this._majorUnit = !tickOpts.major.enabled || this._unit === 'year' ? undefined - : determineMajorUnit(this._unit); - this.initOffsets(timestamps); - if (options.reverse) { - ticks.reverse(); + _getLabelBounds() { + const arr = this.getLabelTimestamps(); + let min = Number.POSITIVE_INFINITY; + let max = Number.NEGATIVE_INFINITY; + if (arr.length) { + min = arr[0]; + max = arr[arr.length - 1]; + } + return { + min, + max + }; } - return ticksFromTimestamps(this, ticks, this._majorUnit); - } - afterAutoSkip() { - if (this.options.offsetAfterAutoskip) { - this.initOffsets(this.ticks.map(tick => +tick.value)); + buildTicks() { + const options = this.options; + const timeOpts = options.time; + const tickOpts = options.ticks; + const timestamps = tickOpts.source === 'labels' ? this.getLabelTimestamps() : this._generate(); + if (options.bounds === 'ticks' && timestamps.length) { + this.min = this._userMin || timestamps[0]; + this.max = this._userMax || timestamps[timestamps.length - 1]; + } + const min = this.min; + const max = this.max; + const ticks = _filterBetween(timestamps, min, max); + this._unit = timeOpts.unit || (tickOpts.autoSkip ? determineUnitForAutoTicks(timeOpts.minUnit, this.min, this.max, this._getLabelCapacity(min)) : determineUnitForFormatting(this, ticks.length, timeOpts.minUnit, this.min, this.max)); + this._majorUnit = !tickOpts.major.enabled || this._unit === 'year' ? undefined : determineMajorUnit(this._unit); + this.initOffsets(timestamps); + if (options.reverse) { + ticks.reverse(); + } + return ticksFromTimestamps(this, ticks, this._majorUnit); } - } - initOffsets(timestamps) { - let start = 0; - let end = 0; - let first, last; - if (this.options.offset && timestamps.length) { - first = this.getDecimalForValue(timestamps[0]); - if (timestamps.length === 1) { - start = 1 - first; - } else { - start = (this.getDecimalForValue(timestamps[1]) - first) / 2; - } - last = this.getDecimalForValue(timestamps[timestamps.length - 1]); - if (timestamps.length === 1) { - end = last; - } else { - end = (last - this.getDecimalForValue(timestamps[timestamps.length - 2])) / 2; - } + afterAutoSkip() { + if (this.options.offsetAfterAutoskip) { + this.initOffsets(this.ticks.map((tick)=>+tick.value)); + } } - const limit = timestamps.length < 3 ? 0.5 : 0.25; - start = _limitValue(start, 0, limit); - end = _limitValue(end, 0, limit); - this._offsets = {start, end, factor: 1 / (start + 1 + end)}; - } - _generate() { - const adapter = this._adapter; - const min = this.min; - const max = this.max; - const options = this.options; - const timeOpts = options.time; - const minor = timeOpts.unit || determineUnitForAutoTicks(timeOpts.minUnit, min, max, this._getLabelCapacity(min)); - const stepSize = valueOrDefault(timeOpts.stepSize, 1); - const weekday = minor === 'week' ? timeOpts.isoWeekday : false; - const hasWeekday = isNumber(weekday) || weekday === true; - const ticks = {}; - let first = min; - let time, count; - if (hasWeekday) { - first = +adapter.startOf(first, 'isoWeek', weekday); + initOffsets(timestamps = []) { + let start = 0; + let end = 0; + let first, last; + if (this.options.offset && timestamps.length) { + first = this.getDecimalForValue(timestamps[0]); + if (timestamps.length === 1) { + start = 1 - first; + } else { + start = (this.getDecimalForValue(timestamps[1]) - first) / 2; + } + last = this.getDecimalForValue(timestamps[timestamps.length - 1]); + if (timestamps.length === 1) { + end = last; + } else { + end = (last - this.getDecimalForValue(timestamps[timestamps.length - 2])) / 2; + } + } + const limit = timestamps.length < 3 ? 0.5 : 0.25; + start = _limitValue(start, 0, limit); + end = _limitValue(end, 0, limit); + this._offsets = { + start, + end, + factor: 1 / (start + 1 + end) + }; } - first = +adapter.startOf(first, hasWeekday ? 'day' : minor); - if (adapter.diff(max, min, minor) > 100000 * stepSize) { - throw new Error(min + ' and ' + max + ' are too far apart with stepSize of ' + stepSize + ' ' + minor); + _generate() { + const adapter = this._adapter; + const min = this.min; + const max = this.max; + const options = this.options; + const timeOpts = options.time; + const minor = timeOpts.unit || determineUnitForAutoTicks(timeOpts.minUnit, min, max, this._getLabelCapacity(min)); + const stepSize = valueOrDefault(options.ticks.stepSize, 1); + const weekday = minor === 'week' ? timeOpts.isoWeekday : false; + const hasWeekday = isNumber(weekday) || weekday === true; + const ticks = {}; + let first = min; + let time, count; + if (hasWeekday) { + first = +adapter.startOf(first, 'isoWeek', weekday); + } + first = +adapter.startOf(first, hasWeekday ? 'day' : minor); + if (adapter.diff(max, min, minor) > 100000 * stepSize) { + throw new Error(min + ' and ' + max + ' are too far apart with stepSize of ' + stepSize + ' ' + minor); + } + const timestamps = options.ticks.source === 'data' && this.getDataTimestamps(); + for(time = first, count = 0; time < max; time = +adapter.add(time, stepSize, minor), count++){ + addTick(ticks, time, timestamps); + } + if (time === max || options.bounds === 'ticks' || count === 1) { + addTick(ticks, time, timestamps); + } + return Object.keys(ticks).sort((a, b)=>a - b).map((x)=>+x); } - const timestamps = options.ticks.source === 'data' && this.getDataTimestamps(); - for (time = first, count = 0; time < max; time = +adapter.add(time, stepSize, minor), count++) { - addTick(ticks, time, timestamps); + getLabelForValue(value) { + const adapter = this._adapter; + const timeOpts = this.options.time; + if (timeOpts.tooltipFormat) { + return adapter.format(value, timeOpts.tooltipFormat); + } + return adapter.format(value, timeOpts.displayFormats.datetime); } - if (time === max || options.bounds === 'ticks' || count === 1) { - addTick(ticks, time, timestamps); + format(value, format) { + const options = this.options; + const formats = options.time.displayFormats; + const unit = this._unit; + const fmt = format || formats[unit]; + return this._adapter.format(value, fmt); } - return Object.keys(ticks).sort((a, b) => a - b).map(x => +x); - } - getLabelForValue(value) { - const adapter = this._adapter; - const timeOpts = this.options.time; - if (timeOpts.tooltipFormat) { - return adapter.format(value, timeOpts.tooltipFormat); + _tickFormatFunction(time, index, ticks, format) { + const options = this.options; + const formatter = options.ticks.callback; + if (formatter) { + return callback(formatter, [ + time, + index, + ticks + ], this); + } + const formats = options.time.displayFormats; + const unit = this._unit; + const majorUnit = this._majorUnit; + const minorFormat = unit && formats[unit]; + const majorFormat = majorUnit && formats[majorUnit]; + const tick = ticks[index]; + const major = majorUnit && majorFormat && tick && tick.major; + return this._adapter.format(time, format || (major ? majorFormat : minorFormat)); } - return adapter.format(value, timeOpts.displayFormats.datetime); - } - _tickFormatFunction(time, index, ticks, format) { - const options = this.options; - const formats = options.time.displayFormats; - const unit = this._unit; - const majorUnit = this._majorUnit; - const minorFormat = unit && formats[unit]; - const majorFormat = majorUnit && formats[majorUnit]; - const tick = ticks[index]; - const major = majorUnit && majorFormat && tick && tick.major; - const label = this._adapter.format(time, format || (major ? majorFormat : minorFormat)); - const formatter = options.ticks.callback; - return formatter ? callback(formatter, [label, index, ticks], this) : label; - } - generateTickLabels(ticks) { - let i, ilen, tick; - for (i = 0, ilen = ticks.length; i < ilen; ++i) { - tick = ticks[i]; - tick.label = this._tickFormatFunction(tick.value, i, ticks); + generateTickLabels(ticks) { + let i, ilen, tick; + for(i = 0, ilen = ticks.length; i < ilen; ++i){ + tick = ticks[i]; + tick.label = this._tickFormatFunction(tick.value, i, ticks); + } } - } - getDecimalForValue(value) { - return value === null ? NaN : (value - this.min) / (this.max - this.min); - } - getPixelForValue(value) { - const offsets = this._offsets; - const pos = this.getDecimalForValue(value); - return this.getPixelForDecimal((offsets.start + pos) * offsets.factor); - } - getValueForPixel(pixel) { - const offsets = this._offsets; - const pos = this.getDecimalForPixel(pixel) / offsets.factor - offsets.end; - return this.min + pos * (this.max - this.min); - } - _getLabelSize(label) { - const ticksOpts = this.options.ticks; - const tickLabelWidth = this.ctx.measureText(label).width; - const angle = toRadians(this.isHorizontal() ? ticksOpts.maxRotation : ticksOpts.minRotation); - const cosRotation = Math.cos(angle); - const sinRotation = Math.sin(angle); - const tickFontSize = this._resolveTickFontOptions(0).size; - return { - w: (tickLabelWidth * cosRotation) + (tickFontSize * sinRotation), - h: (tickLabelWidth * sinRotation) + (tickFontSize * cosRotation) - }; - } - _getLabelCapacity(exampleTime) { - const timeOpts = this.options.time; - const displayFormats = timeOpts.displayFormats; - const format = displayFormats[timeOpts.unit] || displayFormats.millisecond; - const exampleLabel = this._tickFormatFunction(exampleTime, 0, ticksFromTimestamps(this, [exampleTime], this._majorUnit), format); - const size = this._getLabelSize(exampleLabel); - const capacity = Math.floor(this.isHorizontal() ? this.width / size.w : this.height / size.h) - 1; - return capacity > 0 ? capacity : 1; - } - getDataTimestamps() { - let timestamps = this._cache.data || []; - let i, ilen; - if (timestamps.length) { - return timestamps; + getDecimalForValue(value) { + return value === null ? NaN : (value - this.min) / (this.max - this.min); } - const metas = this.getMatchingVisibleMetas(); - if (this._normalized && metas.length) { - return (this._cache.data = metas[0].controller.getAllParsedValues(this)); + getPixelForValue(value) { + const offsets = this._offsets; + const pos = this.getDecimalForValue(value); + return this.getPixelForDecimal((offsets.start + pos) * offsets.factor); } - for (i = 0, ilen = metas.length; i < ilen; ++i) { - timestamps = timestamps.concat(metas[i].controller.getAllParsedValues(this)); + getValueForPixel(pixel) { + const offsets = this._offsets; + const pos = this.getDecimalForPixel(pixel) / offsets.factor - offsets.end; + return this.min + pos * (this.max - this.min); } - return (this._cache.data = this.normalize(timestamps)); - } - getLabelTimestamps() { - const timestamps = this._cache.labels || []; - let i, ilen; - if (timestamps.length) { - return timestamps; + _getLabelSize(label) { + const ticksOpts = this.options.ticks; + const tickLabelWidth = this.ctx.measureText(label).width; + const angle = toRadians(this.isHorizontal() ? ticksOpts.maxRotation : ticksOpts.minRotation); + const cosRotation = Math.cos(angle); + const sinRotation = Math.sin(angle); + const tickFontSize = this._resolveTickFontOptions(0).size; + return { + w: tickLabelWidth * cosRotation + tickFontSize * sinRotation, + h: tickLabelWidth * sinRotation + tickFontSize * cosRotation + }; } - const labels = this.getLabels(); - for (i = 0, ilen = labels.length; i < ilen; ++i) { - timestamps.push(parse(this, labels[i])); + _getLabelCapacity(exampleTime) { + const timeOpts = this.options.time; + const displayFormats = timeOpts.displayFormats; + const format = displayFormats[timeOpts.unit] || displayFormats.millisecond; + const exampleLabel = this._tickFormatFunction(exampleTime, 0, ticksFromTimestamps(this, [ + exampleTime + ], this._majorUnit), format); + const size = this._getLabelSize(exampleLabel); + const capacity = Math.floor(this.isHorizontal() ? this.width / size.w : this.height / size.h) - 1; + return capacity > 0 ? capacity : 1; + } + getDataTimestamps() { + let timestamps = this._cache.data || []; + let i, ilen; + if (timestamps.length) { + return timestamps; + } + const metas = this.getMatchingVisibleMetas(); + if (this._normalized && metas.length) { + return this._cache.data = metas[0].controller.getAllParsedValues(this); + } + for(i = 0, ilen = metas.length; i < ilen; ++i){ + timestamps = timestamps.concat(metas[i].controller.getAllParsedValues(this)); + } + return this._cache.data = this.normalize(timestamps); + } + getLabelTimestamps() { + const timestamps = this._cache.labels || []; + let i, ilen; + if (timestamps.length) { + return timestamps; + } + const labels = this.getLabels(); + for(i = 0, ilen = labels.length; i < ilen; ++i){ + timestamps.push(parse(this, labels[i])); + } + return this._cache.labels = this._normalized ? timestamps : this.normalize(timestamps); + } + normalize(values) { + return _arrayUnique(values.sort(sorter)); } - return (this._cache.labels = this._normalized ? timestamps : this.normalize(timestamps)); - } - normalize(values) { - return _arrayUnique(values.sort(sorter)); - } } -TimeScale.id = 'time'; -TimeScale.defaults = { - bounds: 'data', - adapters: {}, - time: { - parser: false, - unit: false, - round: false, - isoWeekday: false, - minUnit: 'millisecond', - displayFormats: {} - }, - ticks: { - source: 'auto', - major: { - enabled: false - } - } -}; function interpolate(table, val, reverse) { - let lo = 0; - let hi = table.length - 1; - let prevSource, nextSource, prevTarget, nextTarget; - if (reverse) { - if (val >= table[lo].pos && val <= table[hi].pos) { - ({lo, hi} = _lookupByKey(table, 'pos', val)); + let lo = 0; + let hi = table.length - 1; + let prevSource, nextSource, prevTarget, nextTarget; + if (reverse) { + if (val >= table[lo].pos && val <= table[hi].pos) { + ({ lo , hi } = _lookupByKey(table, 'pos', val)); + } + ({ pos: prevSource , time: prevTarget } = table[lo]); + ({ pos: nextSource , time: nextTarget } = table[hi]); + } else { + if (val >= table[lo].time && val <= table[hi].time) { + ({ lo , hi } = _lookupByKey(table, 'time', val)); + } + ({ time: prevSource , pos: prevTarget } = table[lo]); + ({ time: nextSource , pos: nextTarget } = table[hi]); } - ({pos: prevSource, time: prevTarget} = table[lo]); - ({pos: nextSource, time: nextTarget} = table[hi]); - } else { - if (val >= table[lo].time && val <= table[hi].time) { - ({lo, hi} = _lookupByKey(table, 'time', val)); - } - ({time: prevSource, pos: prevTarget} = table[lo]); - ({time: nextSource, pos: nextTarget} = table[hi]); - } - const span = nextSource - prevSource; - return span ? prevTarget + (nextTarget - prevTarget) * (val - prevSource) / span : prevTarget; + const span = nextSource - prevSource; + return span ? prevTarget + (nextTarget - prevTarget) * (val - prevSource) / span : prevTarget; } class TimeSeriesScale extends TimeScale { - constructor(props) { - super(props); - this._table = []; - this._minPos = undefined; - this._tableRange = undefined; - } - initOffsets() { - const timestamps = this._getTimestampsForTable(); - const table = this._table = this.buildLookupTable(timestamps); - this._minPos = interpolate(table, this.min); - this._tableRange = interpolate(table, this.max) - this._minPos; - super.initOffsets(timestamps); - } - buildLookupTable(timestamps) { - const {min, max} = this; - const items = []; - const table = []; - let i, ilen, prev, curr, next; - for (i = 0, ilen = timestamps.length; i < ilen; ++i) { - curr = timestamps[i]; - if (curr >= min && curr <= max) { - items.push(curr); - } + static id = 'timeseries'; + static defaults = TimeScale.defaults; + constructor(props){ + super(props); + this._table = []; + this._minPos = undefined; + this._tableRange = undefined; } - if (items.length < 2) { - return [ - {time: min, pos: 0}, - {time: max, pos: 1} - ]; + initOffsets() { + const timestamps = this._getTimestampsForTable(); + const table = this._table = this.buildLookupTable(timestamps); + this._minPos = interpolate(table, this.min); + this._tableRange = interpolate(table, this.max) - this._minPos; + super.initOffsets(timestamps); } - for (i = 0, ilen = items.length; i < ilen; ++i) { - next = items[i + 1]; - prev = items[i - 1]; - curr = items[i]; - if (Math.round((next + prev) / 2) !== curr) { - table.push({time: curr, pos: i / (ilen - 1)}); - } + buildLookupTable(timestamps) { + const { min , max } = this; + const items = []; + const table = []; + let i, ilen, prev, curr, next; + for(i = 0, ilen = timestamps.length; i < ilen; ++i){ + curr = timestamps[i]; + if (curr >= min && curr <= max) { + items.push(curr); + } + } + if (items.length < 2) { + return [ + { + time: min, + pos: 0 + }, + { + time: max, + pos: 1 + } + ]; + } + for(i = 0, ilen = items.length; i < ilen; ++i){ + next = items[i + 1]; + prev = items[i - 1]; + curr = items[i]; + if (Math.round((next + prev) / 2) !== curr) { + table.push({ + time: curr, + pos: i / (ilen - 1) + }); + } + } + return table; } - return table; - } - _getTimestampsForTable() { - let timestamps = this._cache.all || []; - if (timestamps.length) { - return timestamps; + _getTimestampsForTable() { + let timestamps = this._cache.all || []; + if (timestamps.length) { + return timestamps; + } + const data = this.getDataTimestamps(); + const label = this.getLabelTimestamps(); + if (data.length && label.length) { + timestamps = this.normalize(data.concat(label)); + } else { + timestamps = data.length ? data : label; + } + timestamps = this._cache.all = timestamps; + return timestamps; } - const data = this.getDataTimestamps(); - const label = this.getLabelTimestamps(); - if (data.length && label.length) { - timestamps = this.normalize(data.concat(label)); - } else { - timestamps = data.length ? data : label; + getDecimalForValue(value) { + return (interpolate(this._table, value) - this._minPos) / this._tableRange; + } + getValueForPixel(pixel) { + const offsets = this._offsets; + const decimal = this.getDecimalForPixel(pixel) / offsets.factor - offsets.end; + return interpolate(this._table, decimal * this._tableRange + this._minPos, true); } - timestamps = this._cache.all = timestamps; - return timestamps; - } - getDecimalForValue(value) { - return (interpolate(this._table, value) - this._minPos) / this._tableRange; - } - getValueForPixel(pixel) { - const offsets = this._offsets; - const decimal = this.getDecimalForPixel(pixel) / offsets.factor - offsets.end; - return interpolate(this._table, decimal * this._tableRange + this._minPos, true); - } } -TimeSeriesScale.id = 'timeseries'; -TimeSeriesScale.defaults = TimeScale.defaults; var scales = /*#__PURE__*/Object.freeze({ __proto__: null, @@ -13370,8 +12099,2580 @@ TimeScale: TimeScale, TimeSeriesScale: TimeSeriesScale }); +const BORDER_COLORS = [ + 'rgb(54, 162, 235)', + 'rgb(255, 99, 132)', + 'rgb(255, 159, 64)', + 'rgb(255, 205, 86)', + 'rgb(75, 192, 192)', + 'rgb(153, 102, 255)', + 'rgb(201, 203, 207)' // grey +]; +// Border colors with 50% transparency +const BACKGROUND_COLORS = /* #__PURE__ */ BORDER_COLORS.map((color)=>color.replace('rgb(', 'rgba(').replace(')', ', 0.5)')); +function getBorderColor(i) { + return BORDER_COLORS[i % BORDER_COLORS.length]; +} +function getBackgroundColor(i) { + return BACKGROUND_COLORS[i % BACKGROUND_COLORS.length]; +} +function colorizeDefaultDataset(dataset, i) { + dataset.borderColor = getBorderColor(i); + dataset.backgroundColor = getBackgroundColor(i); + return ++i; +} +function colorizeDoughnutDataset(dataset, i) { + dataset.backgroundColor = dataset.data.map(()=>getBorderColor(i++)); + return i; +} +function colorizePolarAreaDataset(dataset, i) { + dataset.backgroundColor = dataset.data.map(()=>getBackgroundColor(i++)); + return i; +} +function getColorizer(chart) { + let i = 0; + return (dataset, datasetIndex)=>{ + const controller = chart.getDatasetMeta(datasetIndex).controller; + if (controller instanceof DoughnutController) { + i = colorizeDoughnutDataset(dataset, i); + } else if (controller instanceof PolarAreaController) { + i = colorizePolarAreaDataset(dataset, i); + } else if (controller) { + i = colorizeDefaultDataset(dataset, i); + } + }; +} +function containsColorsDefinitions(descriptors) { + let k; + for(k in descriptors){ + if (descriptors[k].borderColor || descriptors[k].backgroundColor) { + return true; + } + } + return false; +} +function containsColorsDefinition(descriptor) { + return descriptor && (descriptor.borderColor || descriptor.backgroundColor); +} +var plugin_colors = { + id: 'colors', + defaults: { + enabled: true, + forceOverride: false + }, + beforeLayout (chart, _args, options) { + if (!options.enabled) { + return; + } + const { data: { datasets } , options: chartOptions } = chart.config; + const { elements } = chartOptions; + if (!options.forceOverride && (containsColorsDefinitions(datasets) || containsColorsDefinition(chartOptions) || elements && containsColorsDefinitions(elements))) { + return; + } + const colorizer = getColorizer(chart); + datasets.forEach(colorizer); + } +}; + +function lttbDecimation(data, start, count, availableWidth, options) { + const samples = options.samples || availableWidth; + if (samples >= count) { + return data.slice(start, start + count); + } + const decimated = []; + const bucketWidth = (count - 2) / (samples - 2); + let sampledIndex = 0; + const endIndex = start + count - 1; + let a = start; + let i, maxAreaPoint, maxArea, area, nextA; + decimated[sampledIndex++] = data[a]; + for(i = 0; i < samples - 2; i++){ + let avgX = 0; + let avgY = 0; + let j; + const avgRangeStart = Math.floor((i + 1) * bucketWidth) + 1 + start; + const avgRangeEnd = Math.min(Math.floor((i + 2) * bucketWidth) + 1, count) + start; + const avgRangeLength = avgRangeEnd - avgRangeStart; + for(j = avgRangeStart; j < avgRangeEnd; j++){ + avgX += data[j].x; + avgY += data[j].y; + } + avgX /= avgRangeLength; + avgY /= avgRangeLength; + const rangeOffs = Math.floor(i * bucketWidth) + 1 + start; + const rangeTo = Math.min(Math.floor((i + 1) * bucketWidth) + 1, count) + start; + const { x: pointAx , y: pointAy } = data[a]; + maxArea = area = -1; + for(j = rangeOffs; j < rangeTo; j++){ + area = 0.5 * Math.abs((pointAx - avgX) * (data[j].y - pointAy) - (pointAx - data[j].x) * (avgY - pointAy)); + if (area > maxArea) { + maxArea = area; + maxAreaPoint = data[j]; + nextA = j; + } + } + decimated[sampledIndex++] = maxAreaPoint; + a = nextA; + } + decimated[sampledIndex++] = data[endIndex]; + return decimated; +} +function minMaxDecimation(data, start, count, availableWidth) { + let avgX = 0; + let countX = 0; + let i, point, x, y, prevX, minIndex, maxIndex, startIndex, minY, maxY; + const decimated = []; + const endIndex = start + count - 1; + const xMin = data[start].x; + const xMax = data[endIndex].x; + const dx = xMax - xMin; + for(i = start; i < start + count; ++i){ + point = data[i]; + x = (point.x - xMin) / dx * availableWidth; + y = point.y; + const truncX = x | 0; + if (truncX === prevX) { + if (y < minY) { + minY = y; + minIndex = i; + } else if (y > maxY) { + maxY = y; + maxIndex = i; + } + avgX = (countX * avgX + point.x) / ++countX; + } else { + const lastIndex = i - 1; + if (!isNullOrUndef(minIndex) && !isNullOrUndef(maxIndex)) { + const intermediateIndex1 = Math.min(minIndex, maxIndex); + const intermediateIndex2 = Math.max(minIndex, maxIndex); + if (intermediateIndex1 !== startIndex && intermediateIndex1 !== lastIndex) { + decimated.push({ + ...data[intermediateIndex1], + x: avgX + }); + } + if (intermediateIndex2 !== startIndex && intermediateIndex2 !== lastIndex) { + decimated.push({ + ...data[intermediateIndex2], + x: avgX + }); + } + } + if (i > 0 && lastIndex !== startIndex) { + decimated.push(data[lastIndex]); + } + decimated.push(point); + prevX = truncX; + countX = 0; + minY = maxY = y; + minIndex = maxIndex = startIndex = i; + } + } + return decimated; +} +function cleanDecimatedDataset(dataset) { + if (dataset._decimated) { + const data = dataset._data; + delete dataset._decimated; + delete dataset._data; + Object.defineProperty(dataset, 'data', { + configurable: true, + enumerable: true, + writable: true, + value: data + }); + } +} +function cleanDecimatedData(chart) { + chart.data.datasets.forEach((dataset)=>{ + cleanDecimatedDataset(dataset); + }); +} +function getStartAndCountOfVisiblePointsSimplified(meta, points) { + const pointCount = points.length; + let start = 0; + let count; + const { iScale } = meta; + const { min , max , minDefined , maxDefined } = iScale.getUserBounds(); + if (minDefined) { + start = _limitValue(_lookupByKey(points, iScale.axis, min).lo, 0, pointCount - 1); + } + if (maxDefined) { + count = _limitValue(_lookupByKey(points, iScale.axis, max).hi + 1, start, pointCount) - start; + } else { + count = pointCount - start; + } + return { + start, + count + }; +} +var plugin_decimation = { + id: 'decimation', + defaults: { + algorithm: 'min-max', + enabled: false + }, + beforeElementsUpdate: (chart, args, options)=>{ + if (!options.enabled) { + cleanDecimatedData(chart); + return; + } + const availableWidth = chart.width; + chart.data.datasets.forEach((dataset, datasetIndex)=>{ + const { _data , indexAxis } = dataset; + const meta = chart.getDatasetMeta(datasetIndex); + const data = _data || dataset.data; + if (resolve([ + indexAxis, + chart.options.indexAxis + ]) === 'y') { + return; + } + if (!meta.controller.supportsDecimation) { + return; + } + const xAxis = chart.scales[meta.xAxisID]; + if (xAxis.type !== 'linear' && xAxis.type !== 'time') { + return; + } + if (chart.options.parsing) { + return; + } + let { start , count } = getStartAndCountOfVisiblePointsSimplified(meta, data); + const threshold = options.threshold || 4 * availableWidth; + if (count <= threshold) { + cleanDecimatedDataset(dataset); + return; + } + if (isNullOrUndef(_data)) { + dataset._data = data; + delete dataset.data; + Object.defineProperty(dataset, 'data', { + configurable: true, + enumerable: true, + get: function() { + return this._decimated; + }, + set: function(d) { + this._data = d; + } + }); + } + let decimated; + switch(options.algorithm){ + case 'lttb': + decimated = lttbDecimation(data, start, count, availableWidth, options); + break; + case 'min-max': + decimated = minMaxDecimation(data, start, count, availableWidth); + break; + default: + throw new Error(`Unsupported decimation algorithm '${options.algorithm}'`); + } + dataset._decimated = decimated; + }); + }, + destroy (chart) { + cleanDecimatedData(chart); + } +}; + +function _segments(line, target, property) { + const segments = line.segments; + const points = line.points; + const tpoints = target.points; + const parts = []; + for (const segment of segments){ + let { start , end } = segment; + end = _findSegmentEnd(start, end, points); + const bounds = _getBounds(property, points[start], points[end], segment.loop); + if (!target.segments) { + parts.push({ + source: segment, + target: bounds, + start: points[start], + end: points[end] + }); + continue; + } + const targetSegments = _boundSegments(target, bounds); + for (const tgt of targetSegments){ + const subBounds = _getBounds(property, tpoints[tgt.start], tpoints[tgt.end], tgt.loop); + const fillSources = _boundSegment(segment, points, subBounds); + for (const fillSource of fillSources){ + parts.push({ + source: fillSource, + target: tgt, + start: { + [property]: _getEdge(bounds, subBounds, 'start', Math.max) + }, + end: { + [property]: _getEdge(bounds, subBounds, 'end', Math.min) + } + }); + } + } + } + return parts; +} +function _getBounds(property, first, last, loop) { + if (loop) { + return; + } + let start = first[property]; + let end = last[property]; + if (property === 'angle') { + start = _normalizeAngle(start); + end = _normalizeAngle(end); + } + return { + property, + start, + end + }; +} +function _pointsFromSegments(boundary, line) { + const { x =null , y =null } = boundary || {}; + const linePoints = line.points; + const points = []; + line.segments.forEach(({ start , end })=>{ + end = _findSegmentEnd(start, end, linePoints); + const first = linePoints[start]; + const last = linePoints[end]; + if (y !== null) { + points.push({ + x: first.x, + y + }); + points.push({ + x: last.x, + y + }); + } else if (x !== null) { + points.push({ + x, + y: first.y + }); + points.push({ + x, + y: last.y + }); + } + }); + return points; +} +function _findSegmentEnd(start, end, points) { + for(; end > start; end--){ + const point = points[end]; + if (!isNaN(point.x) && !isNaN(point.y)) { + break; + } + } + return end; +} +function _getEdge(a, b, prop, fn) { + if (a && b) { + return fn(a[prop], b[prop]); + } + return a ? a[prop] : b ? b[prop] : 0; +} + +function _createBoundaryLine(boundary, line) { + let points = []; + let _loop = false; + if (isArray(boundary)) { + _loop = true; + points = boundary; + } else { + points = _pointsFromSegments(boundary, line); + } + return points.length ? new LineElement({ + points, + options: { + tension: 0 + }, + _loop, + _fullLoop: _loop + }) : null; +} +function _shouldApplyFill(source) { + return source && source.fill !== false; +} + +function _resolveTarget(sources, index, propagate) { + const source = sources[index]; + let fill = source.fill; + const visited = [ + index + ]; + let target; + if (!propagate) { + return fill; + } + while(fill !== false && visited.indexOf(fill) === -1){ + if (!isNumberFinite(fill)) { + return fill; + } + target = sources[fill]; + if (!target) { + return false; + } + if (target.visible) { + return fill; + } + visited.push(fill); + fill = target.fill; + } + return false; +} + function _decodeFill(line, index, count) { + const fill = parseFillOption(line); + if (isObject(fill)) { + return isNaN(fill.value) ? false : fill; + } + let target = parseFloat(fill); + if (isNumberFinite(target) && Math.floor(target) === target) { + return decodeTargetIndex(fill[0], index, target, count); + } + return [ + 'origin', + 'start', + 'end', + 'stack', + 'shape' + ].indexOf(fill) >= 0 && fill; +} +function decodeTargetIndex(firstCh, index, target, count) { + if (firstCh === '-' || firstCh === '+') { + target = index + target; + } + if (target === index || target < 0 || target >= count) { + return false; + } + return target; +} + function _getTargetPixel(fill, scale) { + let pixel = null; + if (fill === 'start') { + pixel = scale.bottom; + } else if (fill === 'end') { + pixel = scale.top; + } else if (isObject(fill)) { + pixel = scale.getPixelForValue(fill.value); + } else if (scale.getBasePixel) { + pixel = scale.getBasePixel(); + } + return pixel; +} + function _getTargetValue(fill, scale, startValue) { + let value; + if (fill === 'start') { + value = startValue; + } else if (fill === 'end') { + value = scale.options.reverse ? scale.min : scale.max; + } else if (isObject(fill)) { + value = fill.value; + } else { + value = scale.getBaseValue(); + } + return value; +} + function parseFillOption(line) { + const options = line.options; + const fillOption = options.fill; + let fill = valueOrDefault(fillOption && fillOption.target, fillOption); + if (fill === undefined) { + fill = !!options.backgroundColor; + } + if (fill === false || fill === null) { + return false; + } + if (fill === true) { + return 'origin'; + } + return fill; +} + +function _buildStackLine(source) { + const { scale , index , line } = source; + const points = []; + const segments = line.segments; + const sourcePoints = line.points; + const linesBelow = getLinesBelow(scale, index); + linesBelow.push(_createBoundaryLine({ + x: null, + y: scale.bottom + }, line)); + for(let i = 0; i < segments.length; i++){ + const segment = segments[i]; + for(let j = segment.start; j <= segment.end; j++){ + addPointsBelow(points, sourcePoints[j], linesBelow); + } + } + return new LineElement({ + points, + options: {} + }); +} + function getLinesBelow(scale, index) { + const below = []; + const metas = scale.getMatchingVisibleMetas('line'); + for(let i = 0; i < metas.length; i++){ + const meta = metas[i]; + if (meta.index === index) { + break; + } + if (!meta.hidden) { + below.unshift(meta.dataset); + } + } + return below; +} + function addPointsBelow(points, sourcePoint, linesBelow) { + const postponed = []; + for(let j = 0; j < linesBelow.length; j++){ + const line = linesBelow[j]; + const { first , last , point } = findPoint(line, sourcePoint, 'x'); + if (!point || first && last) { + continue; + } + if (first) { + postponed.unshift(point); + } else { + points.push(point); + if (!last) { + break; + } + } + } + points.push(...postponed); +} + function findPoint(line, sourcePoint, property) { + const point = line.interpolate(sourcePoint, property); + if (!point) { + return {}; + } + const pointValue = point[property]; + const segments = line.segments; + const linePoints = line.points; + let first = false; + let last = false; + for(let i = 0; i < segments.length; i++){ + const segment = segments[i]; + const firstValue = linePoints[segment.start][property]; + const lastValue = linePoints[segment.end][property]; + if (_isBetween(pointValue, firstValue, lastValue)) { + first = pointValue === firstValue; + last = pointValue === lastValue; + break; + } + } + return { + first, + last, + point + }; +} + +class simpleArc { + constructor(opts){ + this.x = opts.x; + this.y = opts.y; + this.radius = opts.radius; + } + pathSegment(ctx, bounds, opts) { + const { x , y , radius } = this; + bounds = bounds || { + start: 0, + end: TAU + }; + ctx.arc(x, y, radius, bounds.end, bounds.start, true); + return !opts.bounds; + } + interpolate(point) { + const { x , y , radius } = this; + const angle = point.angle; + return { + x: x + Math.cos(angle) * radius, + y: y + Math.sin(angle) * radius, + angle + }; + } +} + +function _getTarget(source) { + const { chart , fill , line } = source; + if (isNumberFinite(fill)) { + return getLineByIndex(chart, fill); + } + if (fill === 'stack') { + return _buildStackLine(source); + } + if (fill === 'shape') { + return true; + } + const boundary = computeBoundary(source); + if (boundary instanceof simpleArc) { + return boundary; + } + return _createBoundaryLine(boundary, line); +} + function getLineByIndex(chart, index) { + const meta = chart.getDatasetMeta(index); + const visible = meta && chart.isDatasetVisible(index); + return visible ? meta.dataset : null; +} +function computeBoundary(source) { + const scale = source.scale || {}; + if (scale.getPointPositionForValue) { + return computeCircularBoundary(source); + } + return computeLinearBoundary(source); +} +function computeLinearBoundary(source) { + const { scale ={} , fill } = source; + const pixel = _getTargetPixel(fill, scale); + if (isNumberFinite(pixel)) { + const horizontal = scale.isHorizontal(); + return { + x: horizontal ? pixel : null, + y: horizontal ? null : pixel + }; + } + return null; +} +function computeCircularBoundary(source) { + const { scale , fill } = source; + const options = scale.options; + const length = scale.getLabels().length; + const start = options.reverse ? scale.max : scale.min; + const value = _getTargetValue(fill, scale, start); + const target = []; + if (options.grid.circular) { + const center = scale.getPointPositionForValue(0, start); + return new simpleArc({ + x: center.x, + y: center.y, + radius: scale.getDistanceFromCenterForValue(value) + }); + } + for(let i = 0; i < length; ++i){ + target.push(scale.getPointPositionForValue(i, value)); + } + return target; +} + +function _drawfill(ctx, source, area) { + const target = _getTarget(source); + const { line , scale , axis } = source; + const lineOpts = line.options; + const fillOption = lineOpts.fill; + const color = lineOpts.backgroundColor; + const { above =color , below =color } = fillOption || {}; + if (target && line.points.length) { + clipArea(ctx, area); + doFill(ctx, { + line, + target, + above, + below, + area, + scale, + axis + }); + unclipArea(ctx); + } +} +function doFill(ctx, cfg) { + const { line , target , above , below , area , scale } = cfg; + const property = line._loop ? 'angle' : cfg.axis; + ctx.save(); + if (property === 'x' && below !== above) { + clipVertical(ctx, target, area.top); + fill(ctx, { + line, + target, + color: above, + scale, + property + }); + ctx.restore(); + ctx.save(); + clipVertical(ctx, target, area.bottom); + } + fill(ctx, { + line, + target, + color: below, + scale, + property + }); + ctx.restore(); +} +function clipVertical(ctx, target, clipY) { + const { segments , points } = target; + let first = true; + let lineLoop = false; + ctx.beginPath(); + for (const segment of segments){ + const { start , end } = segment; + const firstPoint = points[start]; + const lastPoint = points[_findSegmentEnd(start, end, points)]; + if (first) { + ctx.moveTo(firstPoint.x, firstPoint.y); + first = false; + } else { + ctx.lineTo(firstPoint.x, clipY); + ctx.lineTo(firstPoint.x, firstPoint.y); + } + lineLoop = !!target.pathSegment(ctx, segment, { + move: lineLoop + }); + if (lineLoop) { + ctx.closePath(); + } else { + ctx.lineTo(lastPoint.x, clipY); + } + } + ctx.lineTo(target.first().x, clipY); + ctx.closePath(); + ctx.clip(); +} +function fill(ctx, cfg) { + const { line , target , property , color , scale } = cfg; + const segments = _segments(line, target, property); + for (const { source: src , target: tgt , start , end } of segments){ + const { style: { backgroundColor =color } = {} } = src; + const notShape = target !== true; + ctx.save(); + ctx.fillStyle = backgroundColor; + clipBounds(ctx, scale, notShape && _getBounds(property, start, end)); + ctx.beginPath(); + const lineLoop = !!line.pathSegment(ctx, src); + let loop; + if (notShape) { + if (lineLoop) { + ctx.closePath(); + } else { + interpolatedLineTo(ctx, target, end, property); + } + const targetLoop = !!target.pathSegment(ctx, tgt, { + move: lineLoop, + reverse: true + }); + loop = lineLoop && targetLoop; + if (!loop) { + interpolatedLineTo(ctx, target, start, property); + } + } + ctx.closePath(); + ctx.fill(loop ? 'evenodd' : 'nonzero'); + ctx.restore(); + } +} +function clipBounds(ctx, scale, bounds) { + const { top , bottom } = scale.chart.chartArea; + const { property , start , end } = bounds || {}; + if (property === 'x') { + ctx.beginPath(); + ctx.rect(start, top, end - start, bottom - top); + ctx.clip(); + } +} +function interpolatedLineTo(ctx, target, point, property) { + const interpolatedPoint = target.interpolate(point, property); + if (interpolatedPoint) { + ctx.lineTo(interpolatedPoint.x, interpolatedPoint.y); + } +} + +var index = { + id: 'filler', + afterDatasetsUpdate (chart, _args, options) { + const count = (chart.data.datasets || []).length; + const sources = []; + let meta, i, line, source; + for(i = 0; i < count; ++i){ + meta = chart.getDatasetMeta(i); + line = meta.dataset; + source = null; + if (line && line.options && line instanceof LineElement) { + source = { + visible: chart.isDatasetVisible(i), + index: i, + fill: _decodeFill(line, i, count), + chart, + axis: meta.controller.options.indexAxis, + scale: meta.vScale, + line + }; + } + meta.$filler = source; + sources.push(source); + } + for(i = 0; i < count; ++i){ + source = sources[i]; + if (!source || source.fill === false) { + continue; + } + source.fill = _resolveTarget(sources, i, options.propagate); + } + }, + beforeDraw (chart, _args, options) { + const draw = options.drawTime === 'beforeDraw'; + const metasets = chart.getSortedVisibleDatasetMetas(); + const area = chart.chartArea; + for(let i = metasets.length - 1; i >= 0; --i){ + const source = metasets[i].$filler; + if (!source) { + continue; + } + source.line.updateControlPoints(area, source.axis); + if (draw && source.fill) { + _drawfill(chart.ctx, source, area); + } + } + }, + beforeDatasetsDraw (chart, _args, options) { + if (options.drawTime !== 'beforeDatasetsDraw') { + return; + } + const metasets = chart.getSortedVisibleDatasetMetas(); + for(let i = metasets.length - 1; i >= 0; --i){ + const source = metasets[i].$filler; + if (_shouldApplyFill(source)) { + _drawfill(chart.ctx, source, chart.chartArea); + } + } + }, + beforeDatasetDraw (chart, args, options) { + const source = args.meta.$filler; + if (!_shouldApplyFill(source) || options.drawTime !== 'beforeDatasetDraw') { + return; + } + _drawfill(chart.ctx, source, chart.chartArea); + }, + defaults: { + propagate: true, + drawTime: 'beforeDatasetDraw' + } +}; + +const getBoxSize = (labelOpts, fontSize)=>{ + let { boxHeight =fontSize , boxWidth =fontSize } = labelOpts; + if (labelOpts.usePointStyle) { + boxHeight = Math.min(boxHeight, fontSize); + boxWidth = labelOpts.pointStyleWidth || Math.min(boxWidth, fontSize); + } + return { + boxWidth, + boxHeight, + itemHeight: Math.max(fontSize, boxHeight) + }; +}; +const itemsEqual = (a, b)=>a !== null && b !== null && a.datasetIndex === b.datasetIndex && a.index === b.index; +class Legend extends Element { + constructor(config){ + super(); + this._added = false; + this.legendHitBoxes = []; + this._hoveredItem = null; + this.doughnutMode = false; + this.chart = config.chart; + this.options = config.options; + this.ctx = config.ctx; + this.legendItems = undefined; + this.columnSizes = undefined; + this.lineWidths = undefined; + this.maxHeight = undefined; + this.maxWidth = undefined; + this.top = undefined; + this.bottom = undefined; + this.left = undefined; + this.right = undefined; + this.height = undefined; + this.width = undefined; + this._margins = undefined; + this.position = undefined; + this.weight = undefined; + this.fullSize = undefined; + } + update(maxWidth, maxHeight, margins) { + this.maxWidth = maxWidth; + this.maxHeight = maxHeight; + this._margins = margins; + this.setDimensions(); + this.buildLabels(); + this.fit(); + } + setDimensions() { + if (this.isHorizontal()) { + this.width = this.maxWidth; + this.left = this._margins.left; + this.right = this.width; + } else { + this.height = this.maxHeight; + this.top = this._margins.top; + this.bottom = this.height; + } + } + buildLabels() { + const labelOpts = this.options.labels || {}; + let legendItems = callback(labelOpts.generateLabels, [ + this.chart + ], this) || []; + if (labelOpts.filter) { + legendItems = legendItems.filter((item)=>labelOpts.filter(item, this.chart.data)); + } + if (labelOpts.sort) { + legendItems = legendItems.sort((a, b)=>labelOpts.sort(a, b, this.chart.data)); + } + if (this.options.reverse) { + legendItems.reverse(); + } + this.legendItems = legendItems; + } + fit() { + const { options , ctx } = this; + if (!options.display) { + this.width = this.height = 0; + return; + } + const labelOpts = options.labels; + const labelFont = toFont(labelOpts.font); + const fontSize = labelFont.size; + const titleHeight = this._computeTitleHeight(); + const { boxWidth , itemHeight } = getBoxSize(labelOpts, fontSize); + let width, height; + ctx.font = labelFont.string; + if (this.isHorizontal()) { + width = this.maxWidth; + height = this._fitRows(titleHeight, fontSize, boxWidth, itemHeight) + 10; + } else { + height = this.maxHeight; + width = this._fitCols(titleHeight, labelFont, boxWidth, itemHeight) + 10; + } + this.width = Math.min(width, options.maxWidth || this.maxWidth); + this.height = Math.min(height, options.maxHeight || this.maxHeight); + } + _fitRows(titleHeight, fontSize, boxWidth, itemHeight) { + const { ctx , maxWidth , options: { labels: { padding } } } = this; + const hitboxes = this.legendHitBoxes = []; + const lineWidths = this.lineWidths = [ + 0 + ]; + const lineHeight = itemHeight + padding; + let totalHeight = titleHeight; + ctx.textAlign = 'left'; + ctx.textBaseline = 'middle'; + let row = -1; + let top = -lineHeight; + this.legendItems.forEach((legendItem, i)=>{ + const itemWidth = boxWidth + fontSize / 2 + ctx.measureText(legendItem.text).width; + if (i === 0 || lineWidths[lineWidths.length - 1] + itemWidth + 2 * padding > maxWidth) { + totalHeight += lineHeight; + lineWidths[lineWidths.length - (i > 0 ? 0 : 1)] = 0; + top += lineHeight; + row++; + } + hitboxes[i] = { + left: 0, + top, + row, + width: itemWidth, + height: itemHeight + }; + lineWidths[lineWidths.length - 1] += itemWidth + padding; + }); + return totalHeight; + } + _fitCols(titleHeight, labelFont, boxWidth, _itemHeight) { + const { ctx , maxHeight , options: { labels: { padding } } } = this; + const hitboxes = this.legendHitBoxes = []; + const columnSizes = this.columnSizes = []; + const heightLimit = maxHeight - titleHeight; + let totalWidth = padding; + let currentColWidth = 0; + let currentColHeight = 0; + let left = 0; + let col = 0; + this.legendItems.forEach((legendItem, i)=>{ + const { itemWidth , itemHeight } = calculateItemSize(boxWidth, labelFont, ctx, legendItem, _itemHeight); + if (i > 0 && currentColHeight + itemHeight + 2 * padding > heightLimit) { + totalWidth += currentColWidth + padding; + columnSizes.push({ + width: currentColWidth, + height: currentColHeight + }); + left += currentColWidth + padding; + col++; + currentColWidth = currentColHeight = 0; + } + hitboxes[i] = { + left, + top: currentColHeight, + col, + width: itemWidth, + height: itemHeight + }; + currentColWidth = Math.max(currentColWidth, itemWidth); + currentColHeight += itemHeight + padding; + }); + totalWidth += currentColWidth; + columnSizes.push({ + width: currentColWidth, + height: currentColHeight + }); + return totalWidth; + } + adjustHitBoxes() { + if (!this.options.display) { + return; + } + const titleHeight = this._computeTitleHeight(); + const { legendHitBoxes: hitboxes , options: { align , labels: { padding } , rtl } } = this; + const rtlHelper = getRtlAdapter(rtl, this.left, this.width); + if (this.isHorizontal()) { + let row = 0; + let left = _alignStartEnd(align, this.left + padding, this.right - this.lineWidths[row]); + for (const hitbox of hitboxes){ + if (row !== hitbox.row) { + row = hitbox.row; + left = _alignStartEnd(align, this.left + padding, this.right - this.lineWidths[row]); + } + hitbox.top += this.top + titleHeight + padding; + hitbox.left = rtlHelper.leftForLtr(rtlHelper.x(left), hitbox.width); + left += hitbox.width + padding; + } + } else { + let col = 0; + let top = _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - this.columnSizes[col].height); + for (const hitbox1 of hitboxes){ + if (hitbox1.col !== col) { + col = hitbox1.col; + top = _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - this.columnSizes[col].height); + } + hitbox1.top = top; + hitbox1.left += this.left + padding; + hitbox1.left = rtlHelper.leftForLtr(rtlHelper.x(hitbox1.left), hitbox1.width); + top += hitbox1.height + padding; + } + } + } + isHorizontal() { + return this.options.position === 'top' || this.options.position === 'bottom'; + } + draw() { + if (this.options.display) { + const ctx = this.ctx; + clipArea(ctx, this); + this._draw(); + unclipArea(ctx); + } + } + _draw() { + const { options: opts , columnSizes , lineWidths , ctx } = this; + const { align , labels: labelOpts } = opts; + const defaultColor = defaults.color; + const rtlHelper = getRtlAdapter(opts.rtl, this.left, this.width); + const labelFont = toFont(labelOpts.font); + const { padding } = labelOpts; + const fontSize = labelFont.size; + const halfFontSize = fontSize / 2; + let cursor; + this.drawTitle(); + ctx.textAlign = rtlHelper.textAlign('left'); + ctx.textBaseline = 'middle'; + ctx.lineWidth = 0.5; + ctx.font = labelFont.string; + const { boxWidth , boxHeight , itemHeight } = getBoxSize(labelOpts, fontSize); + const drawLegendBox = function(x, y, legendItem) { + if (isNaN(boxWidth) || boxWidth <= 0 || isNaN(boxHeight) || boxHeight < 0) { + return; + } + ctx.save(); + const lineWidth = valueOrDefault(legendItem.lineWidth, 1); + ctx.fillStyle = valueOrDefault(legendItem.fillStyle, defaultColor); + ctx.lineCap = valueOrDefault(legendItem.lineCap, 'butt'); + ctx.lineDashOffset = valueOrDefault(legendItem.lineDashOffset, 0); + ctx.lineJoin = valueOrDefault(legendItem.lineJoin, 'miter'); + ctx.lineWidth = lineWidth; + ctx.strokeStyle = valueOrDefault(legendItem.strokeStyle, defaultColor); + ctx.setLineDash(valueOrDefault(legendItem.lineDash, [])); + if (labelOpts.usePointStyle) { + const drawOptions = { + radius: boxHeight * Math.SQRT2 / 2, + pointStyle: legendItem.pointStyle, + rotation: legendItem.rotation, + borderWidth: lineWidth + }; + const centerX = rtlHelper.xPlus(x, boxWidth / 2); + const centerY = y + halfFontSize; + drawPointLegend(ctx, drawOptions, centerX, centerY, labelOpts.pointStyleWidth && boxWidth); + } else { + const yBoxTop = y + Math.max((fontSize - boxHeight) / 2, 0); + const xBoxLeft = rtlHelper.leftForLtr(x, boxWidth); + const borderRadius = toTRBLCorners(legendItem.borderRadius); + ctx.beginPath(); + if (Object.values(borderRadius).some((v)=>v !== 0)) { + addRoundedRectPath(ctx, { + x: xBoxLeft, + y: yBoxTop, + w: boxWidth, + h: boxHeight, + radius: borderRadius + }); + } else { + ctx.rect(xBoxLeft, yBoxTop, boxWidth, boxHeight); + } + ctx.fill(); + if (lineWidth !== 0) { + ctx.stroke(); + } + } + ctx.restore(); + }; + const fillText = function(x, y, legendItem) { + renderText(ctx, legendItem.text, x, y + itemHeight / 2, labelFont, { + strikethrough: legendItem.hidden, + textAlign: rtlHelper.textAlign(legendItem.textAlign) + }); + }; + const isHorizontal = this.isHorizontal(); + const titleHeight = this._computeTitleHeight(); + if (isHorizontal) { + cursor = { + x: _alignStartEnd(align, this.left + padding, this.right - lineWidths[0]), + y: this.top + padding + titleHeight, + line: 0 + }; + } else { + cursor = { + x: this.left + padding, + y: _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - columnSizes[0].height), + line: 0 + }; + } + overrideTextDirection(this.ctx, opts.textDirection); + const lineHeight = itemHeight + padding; + this.legendItems.forEach((legendItem, i)=>{ + ctx.strokeStyle = legendItem.fontColor; + ctx.fillStyle = legendItem.fontColor; + const textWidth = ctx.measureText(legendItem.text).width; + const textAlign = rtlHelper.textAlign(legendItem.textAlign || (legendItem.textAlign = labelOpts.textAlign)); + const width = boxWidth + halfFontSize + textWidth; + let x = cursor.x; + let y = cursor.y; + rtlHelper.setWidth(this.width); + if (isHorizontal) { + if (i > 0 && x + width + padding > this.right) { + y = cursor.y += lineHeight; + cursor.line++; + x = cursor.x = _alignStartEnd(align, this.left + padding, this.right - lineWidths[cursor.line]); + } + } else if (i > 0 && y + lineHeight > this.bottom) { + x = cursor.x = x + columnSizes[cursor.line].width + padding; + cursor.line++; + y = cursor.y = _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - columnSizes[cursor.line].height); + } + const realX = rtlHelper.x(x); + drawLegendBox(realX, y, legendItem); + x = _textX(textAlign, x + boxWidth + halfFontSize, isHorizontal ? x + width : this.right, opts.rtl); + fillText(rtlHelper.x(x), y, legendItem); + if (isHorizontal) { + cursor.x += width + padding; + } else if (typeof legendItem.text !== 'string') { + const fontLineHeight = labelFont.lineHeight; + cursor.y += calculateLegendItemHeight(legendItem, fontLineHeight); + } else { + cursor.y += lineHeight; + } + }); + restoreTextDirection(this.ctx, opts.textDirection); + } + drawTitle() { + const opts = this.options; + const titleOpts = opts.title; + const titleFont = toFont(titleOpts.font); + const titlePadding = toPadding(titleOpts.padding); + if (!titleOpts.display) { + return; + } + const rtlHelper = getRtlAdapter(opts.rtl, this.left, this.width); + const ctx = this.ctx; + const position = titleOpts.position; + const halfFontSize = titleFont.size / 2; + const topPaddingPlusHalfFontSize = titlePadding.top + halfFontSize; + let y; + let left = this.left; + let maxWidth = this.width; + if (this.isHorizontal()) { + maxWidth = Math.max(...this.lineWidths); + y = this.top + topPaddingPlusHalfFontSize; + left = _alignStartEnd(opts.align, left, this.right - maxWidth); + } else { + const maxHeight = this.columnSizes.reduce((acc, size)=>Math.max(acc, size.height), 0); + y = topPaddingPlusHalfFontSize + _alignStartEnd(opts.align, this.top, this.bottom - maxHeight - opts.labels.padding - this._computeTitleHeight()); + } + const x = _alignStartEnd(position, left, left + maxWidth); + ctx.textAlign = rtlHelper.textAlign(_toLeftRightCenter(position)); + ctx.textBaseline = 'middle'; + ctx.strokeStyle = titleOpts.color; + ctx.fillStyle = titleOpts.color; + ctx.font = titleFont.string; + renderText(ctx, titleOpts.text, x, y, titleFont); + } + _computeTitleHeight() { + const titleOpts = this.options.title; + const titleFont = toFont(titleOpts.font); + const titlePadding = toPadding(titleOpts.padding); + return titleOpts.display ? titleFont.lineHeight + titlePadding.height : 0; + } + _getLegendItemAt(x, y) { + let i, hitBox, lh; + if (_isBetween(x, this.left, this.right) && _isBetween(y, this.top, this.bottom)) { + lh = this.legendHitBoxes; + for(i = 0; i < lh.length; ++i){ + hitBox = lh[i]; + if (_isBetween(x, hitBox.left, hitBox.left + hitBox.width) && _isBetween(y, hitBox.top, hitBox.top + hitBox.height)) { + return this.legendItems[i]; + } + } + } + return null; + } + handleEvent(e) { + const opts = this.options; + if (!isListened(e.type, opts)) { + return; + } + const hoveredItem = this._getLegendItemAt(e.x, e.y); + if (e.type === 'mousemove' || e.type === 'mouseout') { + const previous = this._hoveredItem; + const sameItem = itemsEqual(previous, hoveredItem); + if (previous && !sameItem) { + callback(opts.onLeave, [ + e, + previous, + this + ], this); + } + this._hoveredItem = hoveredItem; + if (hoveredItem && !sameItem) { + callback(opts.onHover, [ + e, + hoveredItem, + this + ], this); + } + } else if (hoveredItem) { + callback(opts.onClick, [ + e, + hoveredItem, + this + ], this); + } + } +} +function calculateItemSize(boxWidth, labelFont, ctx, legendItem, _itemHeight) { + const itemWidth = calculateItemWidth(legendItem, boxWidth, labelFont, ctx); + const itemHeight = calculateItemHeight(_itemHeight, legendItem, labelFont.lineHeight); + return { + itemWidth, + itemHeight + }; +} +function calculateItemWidth(legendItem, boxWidth, labelFont, ctx) { + let legendItemText = legendItem.text; + if (legendItemText && typeof legendItemText !== 'string') { + legendItemText = legendItemText.reduce((a, b)=>a.length > b.length ? a : b); + } + return boxWidth + labelFont.size / 2 + ctx.measureText(legendItemText).width; +} +function calculateItemHeight(_itemHeight, legendItem, fontLineHeight) { + let itemHeight = _itemHeight; + if (typeof legendItem.text !== 'string') { + itemHeight = calculateLegendItemHeight(legendItem, fontLineHeight); + } + return itemHeight; +} +function calculateLegendItemHeight(legendItem, fontLineHeight) { + const labelHeight = legendItem.text ? legendItem.text.length + 0.5 : 0; + return fontLineHeight * labelHeight; +} +function isListened(type, opts) { + if ((type === 'mousemove' || type === 'mouseout') && (opts.onHover || opts.onLeave)) { + return true; + } + if (opts.onClick && (type === 'click' || type === 'mouseup')) { + return true; + } + return false; +} +var plugin_legend = { + id: 'legend', + _element: Legend, + start (chart, _args, options) { + const legend = chart.legend = new Legend({ + ctx: chart.ctx, + options, + chart + }); + layouts.configure(chart, legend, options); + layouts.addBox(chart, legend); + }, + stop (chart) { + layouts.removeBox(chart, chart.legend); + delete chart.legend; + }, + beforeUpdate (chart, _args, options) { + const legend = chart.legend; + layouts.configure(chart, legend, options); + legend.options = options; + }, + afterUpdate (chart) { + const legend = chart.legend; + legend.buildLabels(); + legend.adjustHitBoxes(); + }, + afterEvent (chart, args) { + if (!args.replay) { + chart.legend.handleEvent(args.event); + } + }, + defaults: { + display: true, + position: 'top', + align: 'center', + fullSize: true, + reverse: false, + weight: 1000, + onClick (e, legendItem, legend) { + const index = legendItem.datasetIndex; + const ci = legend.chart; + if (ci.isDatasetVisible(index)) { + ci.hide(index); + legendItem.hidden = true; + } else { + ci.show(index); + legendItem.hidden = false; + } + }, + onHover: null, + onLeave: null, + labels: { + color: (ctx)=>ctx.chart.options.color, + boxWidth: 40, + padding: 10, + generateLabels (chart) { + const datasets = chart.data.datasets; + const { labels: { usePointStyle , pointStyle , textAlign , color , useBorderRadius , borderRadius } } = chart.legend.options; + return chart._getSortedDatasetMetas().map((meta)=>{ + const style = meta.controller.getStyle(usePointStyle ? 0 : undefined); + const borderWidth = toPadding(style.borderWidth); + return { + text: datasets[meta.index].label, + fillStyle: style.backgroundColor, + fontColor: color, + hidden: !meta.visible, + lineCap: style.borderCapStyle, + lineDash: style.borderDash, + lineDashOffset: style.borderDashOffset, + lineJoin: style.borderJoinStyle, + lineWidth: (borderWidth.width + borderWidth.height) / 4, + strokeStyle: style.borderColor, + pointStyle: pointStyle || style.pointStyle, + rotation: style.rotation, + textAlign: textAlign || style.textAlign, + borderRadius: useBorderRadius && (borderRadius || style.borderRadius), + datasetIndex: meta.index + }; + }, this); + } + }, + title: { + color: (ctx)=>ctx.chart.options.color, + display: false, + position: 'center', + text: '' + } + }, + descriptors: { + _scriptable: (name)=>!name.startsWith('on'), + labels: { + _scriptable: (name)=>![ + 'generateLabels', + 'filter', + 'sort' + ].includes(name) + } + } +}; + +class Title extends Element { + constructor(config){ + super(); + this.chart = config.chart; + this.options = config.options; + this.ctx = config.ctx; + this._padding = undefined; + this.top = undefined; + this.bottom = undefined; + this.left = undefined; + this.right = undefined; + this.width = undefined; + this.height = undefined; + this.position = undefined; + this.weight = undefined; + this.fullSize = undefined; + } + update(maxWidth, maxHeight) { + const opts = this.options; + this.left = 0; + this.top = 0; + if (!opts.display) { + this.width = this.height = this.right = this.bottom = 0; + return; + } + this.width = this.right = maxWidth; + this.height = this.bottom = maxHeight; + const lineCount = isArray(opts.text) ? opts.text.length : 1; + this._padding = toPadding(opts.padding); + const textSize = lineCount * toFont(opts.font).lineHeight + this._padding.height; + if (this.isHorizontal()) { + this.height = textSize; + } else { + this.width = textSize; + } + } + isHorizontal() { + const pos = this.options.position; + return pos === 'top' || pos === 'bottom'; + } + _drawArgs(offset) { + const { top , left , bottom , right , options } = this; + const align = options.align; + let rotation = 0; + let maxWidth, titleX, titleY; + if (this.isHorizontal()) { + titleX = _alignStartEnd(align, left, right); + titleY = top + offset; + maxWidth = right - left; + } else { + if (options.position === 'left') { + titleX = left + offset; + titleY = _alignStartEnd(align, bottom, top); + rotation = PI * -0.5; + } else { + titleX = right - offset; + titleY = _alignStartEnd(align, top, bottom); + rotation = PI * 0.5; + } + maxWidth = bottom - top; + } + return { + titleX, + titleY, + maxWidth, + rotation + }; + } + draw() { + const ctx = this.ctx; + const opts = this.options; + if (!opts.display) { + return; + } + const fontOpts = toFont(opts.font); + const lineHeight = fontOpts.lineHeight; + const offset = lineHeight / 2 + this._padding.top; + const { titleX , titleY , maxWidth , rotation } = this._drawArgs(offset); + renderText(ctx, opts.text, 0, 0, fontOpts, { + color: opts.color, + maxWidth, + rotation, + textAlign: _toLeftRightCenter(opts.align), + textBaseline: 'middle', + translation: [ + titleX, + titleY + ] + }); + } +} +function createTitle(chart, titleOpts) { + const title = new Title({ + ctx: chart.ctx, + options: titleOpts, + chart + }); + layouts.configure(chart, title, titleOpts); + layouts.addBox(chart, title); + chart.titleBlock = title; +} +var plugin_title = { + id: 'title', + _element: Title, + start (chart, _args, options) { + createTitle(chart, options); + }, + stop (chart) { + const titleBlock = chart.titleBlock; + layouts.removeBox(chart, titleBlock); + delete chart.titleBlock; + }, + beforeUpdate (chart, _args, options) { + const title = chart.titleBlock; + layouts.configure(chart, title, options); + title.options = options; + }, + defaults: { + align: 'center', + display: false, + font: { + weight: 'bold' + }, + fullSize: true, + padding: 10, + position: 'top', + text: '', + weight: 2000 + }, + defaultRoutes: { + color: 'color' + }, + descriptors: { + _scriptable: true, + _indexable: false + } +}; + +const map = new WeakMap(); +var plugin_subtitle = { + id: 'subtitle', + start (chart, _args, options) { + const title = new Title({ + ctx: chart.ctx, + options, + chart + }); + layouts.configure(chart, title, options); + layouts.addBox(chart, title); + map.set(chart, title); + }, + stop (chart) { + layouts.removeBox(chart, map.get(chart)); + map.delete(chart); + }, + beforeUpdate (chart, _args, options) { + const title = map.get(chart); + layouts.configure(chart, title, options); + title.options = options; + }, + defaults: { + align: 'center', + display: false, + font: { + weight: 'normal' + }, + fullSize: true, + padding: 0, + position: 'top', + text: '', + weight: 1500 + }, + defaultRoutes: { + color: 'color' + }, + descriptors: { + _scriptable: true, + _indexable: false + } +}; + +const positioners = { + average (items) { + if (!items.length) { + return false; + } + let i, len; + let x = 0; + let y = 0; + let count = 0; + for(i = 0, len = items.length; i < len; ++i){ + const el = items[i].element; + if (el && el.hasValue()) { + const pos = el.tooltipPosition(); + x += pos.x; + y += pos.y; + ++count; + } + } + return { + x: x / count, + y: y / count + }; + }, + nearest (items, eventPosition) { + if (!items.length) { + return false; + } + let x = eventPosition.x; + let y = eventPosition.y; + let minDistance = Number.POSITIVE_INFINITY; + let i, len, nearestElement; + for(i = 0, len = items.length; i < len; ++i){ + const el = items[i].element; + if (el && el.hasValue()) { + const center = el.getCenterPoint(); + const d = distanceBetweenPoints(eventPosition, center); + if (d < minDistance) { + minDistance = d; + nearestElement = el; + } + } + } + if (nearestElement) { + const tp = nearestElement.tooltipPosition(); + x = tp.x; + y = tp.y; + } + return { + x, + y + }; + } +}; +function pushOrConcat(base, toPush) { + if (toPush) { + if (isArray(toPush)) { + Array.prototype.push.apply(base, toPush); + } else { + base.push(toPush); + } + } + return base; +} + function splitNewlines(str) { + if ((typeof str === 'string' || str instanceof String) && str.indexOf('\n') > -1) { + return str.split('\n'); + } + return str; +} + function createTooltipItem(chart, item) { + const { element , datasetIndex , index } = item; + const controller = chart.getDatasetMeta(datasetIndex).controller; + const { label , value } = controller.getLabelAndValue(index); + return { + chart, + label, + parsed: controller.getParsed(index), + raw: chart.data.datasets[datasetIndex].data[index], + formattedValue: value, + dataset: controller.getDataset(), + dataIndex: index, + datasetIndex, + element + }; +} + function getTooltipSize(tooltip, options) { + const ctx = tooltip.chart.ctx; + const { body , footer , title } = tooltip; + const { boxWidth , boxHeight } = options; + const bodyFont = toFont(options.bodyFont); + const titleFont = toFont(options.titleFont); + const footerFont = toFont(options.footerFont); + const titleLineCount = title.length; + const footerLineCount = footer.length; + const bodyLineItemCount = body.length; + const padding = toPadding(options.padding); + let height = padding.height; + let width = 0; + let combinedBodyLength = body.reduce((count, bodyItem)=>count + bodyItem.before.length + bodyItem.lines.length + bodyItem.after.length, 0); + combinedBodyLength += tooltip.beforeBody.length + tooltip.afterBody.length; + if (titleLineCount) { + height += titleLineCount * titleFont.lineHeight + (titleLineCount - 1) * options.titleSpacing + options.titleMarginBottom; + } + if (combinedBodyLength) { + const bodyLineHeight = options.displayColors ? Math.max(boxHeight, bodyFont.lineHeight) : bodyFont.lineHeight; + height += bodyLineItemCount * bodyLineHeight + (combinedBodyLength - bodyLineItemCount) * bodyFont.lineHeight + (combinedBodyLength - 1) * options.bodySpacing; + } + if (footerLineCount) { + height += options.footerMarginTop + footerLineCount * footerFont.lineHeight + (footerLineCount - 1) * options.footerSpacing; + } + let widthPadding = 0; + const maxLineWidth = function(line) { + width = Math.max(width, ctx.measureText(line).width + widthPadding); + }; + ctx.save(); + ctx.font = titleFont.string; + each(tooltip.title, maxLineWidth); + ctx.font = bodyFont.string; + each(tooltip.beforeBody.concat(tooltip.afterBody), maxLineWidth); + widthPadding = options.displayColors ? boxWidth + 2 + options.boxPadding : 0; + each(body, (bodyItem)=>{ + each(bodyItem.before, maxLineWidth); + each(bodyItem.lines, maxLineWidth); + each(bodyItem.after, maxLineWidth); + }); + widthPadding = 0; + ctx.font = footerFont.string; + each(tooltip.footer, maxLineWidth); + ctx.restore(); + width += padding.width; + return { + width, + height + }; +} +function determineYAlign(chart, size) { + const { y , height } = size; + if (y < height / 2) { + return 'top'; + } else if (y > chart.height - height / 2) { + return 'bottom'; + } + return 'center'; +} +function doesNotFitWithAlign(xAlign, chart, options, size) { + const { x , width } = size; + const caret = options.caretSize + options.caretPadding; + if (xAlign === 'left' && x + width + caret > chart.width) { + return true; + } + if (xAlign === 'right' && x - width - caret < 0) { + return true; + } +} +function determineXAlign(chart, options, size, yAlign) { + const { x , width } = size; + const { width: chartWidth , chartArea: { left , right } } = chart; + let xAlign = 'center'; + if (yAlign === 'center') { + xAlign = x <= (left + right) / 2 ? 'left' : 'right'; + } else if (x <= width / 2) { + xAlign = 'left'; + } else if (x >= chartWidth - width / 2) { + xAlign = 'right'; + } + if (doesNotFitWithAlign(xAlign, chart, options, size)) { + xAlign = 'center'; + } + return xAlign; +} + function determineAlignment(chart, options, size) { + const yAlign = size.yAlign || options.yAlign || determineYAlign(chart, size); + return { + xAlign: size.xAlign || options.xAlign || determineXAlign(chart, options, size, yAlign), + yAlign + }; +} +function alignX(size, xAlign) { + let { x , width } = size; + if (xAlign === 'right') { + x -= width; + } else if (xAlign === 'center') { + x -= width / 2; + } + return x; +} +function alignY(size, yAlign, paddingAndSize) { + let { y , height } = size; + if (yAlign === 'top') { + y += paddingAndSize; + } else if (yAlign === 'bottom') { + y -= height + paddingAndSize; + } else { + y -= height / 2; + } + return y; +} + function getBackgroundPoint(options, size, alignment, chart) { + const { caretSize , caretPadding , cornerRadius } = options; + const { xAlign , yAlign } = alignment; + const paddingAndSize = caretSize + caretPadding; + const { topLeft , topRight , bottomLeft , bottomRight } = toTRBLCorners(cornerRadius); + let x = alignX(size, xAlign); + const y = alignY(size, yAlign, paddingAndSize); + if (yAlign === 'center') { + if (xAlign === 'left') { + x += paddingAndSize; + } else if (xAlign === 'right') { + x -= paddingAndSize; + } + } else if (xAlign === 'left') { + x -= Math.max(topLeft, bottomLeft) + caretSize; + } else if (xAlign === 'right') { + x += Math.max(topRight, bottomRight) + caretSize; + } + return { + x: _limitValue(x, 0, chart.width - size.width), + y: _limitValue(y, 0, chart.height - size.height) + }; +} +function getAlignedX(tooltip, align, options) { + const padding = toPadding(options.padding); + return align === 'center' ? tooltip.x + tooltip.width / 2 : align === 'right' ? tooltip.x + tooltip.width - padding.right : tooltip.x + padding.left; +} + function getBeforeAfterBodyLines(callback) { + return pushOrConcat([], splitNewlines(callback)); +} +function createTooltipContext(parent, tooltip, tooltipItems) { + return createContext(parent, { + tooltip, + tooltipItems, + type: 'tooltip' + }); +} +function overrideCallbacks(callbacks, context) { + const override = context && context.dataset && context.dataset.tooltip && context.dataset.tooltip.callbacks; + return override ? callbacks.override(override) : callbacks; +} +const defaultCallbacks = { + beforeTitle: noop, + title (tooltipItems) { + if (tooltipItems.length > 0) { + const item = tooltipItems[0]; + const labels = item.chart.data.labels; + const labelCount = labels ? labels.length : 0; + if (this && this.options && this.options.mode === 'dataset') { + return item.dataset.label || ''; + } else if (item.label) { + return item.label; + } else if (labelCount > 0 && item.dataIndex < labelCount) { + return labels[item.dataIndex]; + } + } + return ''; + }, + afterTitle: noop, + beforeBody: noop, + beforeLabel: noop, + label (tooltipItem) { + if (this && this.options && this.options.mode === 'dataset') { + return tooltipItem.label + ': ' + tooltipItem.formattedValue || tooltipItem.formattedValue; + } + let label = tooltipItem.dataset.label || ''; + if (label) { + label += ': '; + } + const value = tooltipItem.formattedValue; + if (!isNullOrUndef(value)) { + label += value; + } + return label; + }, + labelColor (tooltipItem) { + const meta = tooltipItem.chart.getDatasetMeta(tooltipItem.datasetIndex); + const options = meta.controller.getStyle(tooltipItem.dataIndex); + return { + borderColor: options.borderColor, + backgroundColor: options.backgroundColor, + borderWidth: options.borderWidth, + borderDash: options.borderDash, + borderDashOffset: options.borderDashOffset, + borderRadius: 0 + }; + }, + labelTextColor () { + return this.options.bodyColor; + }, + labelPointStyle (tooltipItem) { + const meta = tooltipItem.chart.getDatasetMeta(tooltipItem.datasetIndex); + const options = meta.controller.getStyle(tooltipItem.dataIndex); + return { + pointStyle: options.pointStyle, + rotation: options.rotation + }; + }, + afterLabel: noop, + afterBody: noop, + beforeFooter: noop, + footer: noop, + afterFooter: noop +}; + function invokeCallbackWithFallback(callbacks, name, ctx, arg) { + const result = callbacks[name].call(ctx, arg); + if (typeof result === 'undefined') { + return defaultCallbacks[name].call(ctx, arg); + } + return result; +} +class Tooltip extends Element { + static positioners = positioners; + constructor(config){ + super(); + this.opacity = 0; + this._active = []; + this._eventPosition = undefined; + this._size = undefined; + this._cachedAnimations = undefined; + this._tooltipItems = []; + this.$animations = undefined; + this.$context = undefined; + this.chart = config.chart; + this.options = config.options; + this.dataPoints = undefined; + this.title = undefined; + this.beforeBody = undefined; + this.body = undefined; + this.afterBody = undefined; + this.footer = undefined; + this.xAlign = undefined; + this.yAlign = undefined; + this.x = undefined; + this.y = undefined; + this.height = undefined; + this.width = undefined; + this.caretX = undefined; + this.caretY = undefined; + this.labelColors = undefined; + this.labelPointStyles = undefined; + this.labelTextColors = undefined; + } + initialize(options) { + this.options = options; + this._cachedAnimations = undefined; + this.$context = undefined; + } + _resolveAnimations() { + const cached = this._cachedAnimations; + if (cached) { + return cached; + } + const chart = this.chart; + const options = this.options.setContext(this.getContext()); + const opts = options.enabled && chart.options.animation && options.animations; + const animations = new Animations(this.chart, opts); + if (opts._cacheable) { + this._cachedAnimations = Object.freeze(animations); + } + return animations; + } + getContext() { + return this.$context || (this.$context = createTooltipContext(this.chart.getContext(), this, this._tooltipItems)); + } + getTitle(context, options) { + const { callbacks } = options; + const beforeTitle = invokeCallbackWithFallback(callbacks, 'beforeTitle', this, context); + const title = invokeCallbackWithFallback(callbacks, 'title', this, context); + const afterTitle = invokeCallbackWithFallback(callbacks, 'afterTitle', this, context); + let lines = []; + lines = pushOrConcat(lines, splitNewlines(beforeTitle)); + lines = pushOrConcat(lines, splitNewlines(title)); + lines = pushOrConcat(lines, splitNewlines(afterTitle)); + return lines; + } + getBeforeBody(tooltipItems, options) { + return getBeforeAfterBodyLines(invokeCallbackWithFallback(options.callbacks, 'beforeBody', this, tooltipItems)); + } + getBody(tooltipItems, options) { + const { callbacks } = options; + const bodyItems = []; + each(tooltipItems, (context)=>{ + const bodyItem = { + before: [], + lines: [], + after: [] + }; + const scoped = overrideCallbacks(callbacks, context); + pushOrConcat(bodyItem.before, splitNewlines(invokeCallbackWithFallback(scoped, 'beforeLabel', this, context))); + pushOrConcat(bodyItem.lines, invokeCallbackWithFallback(scoped, 'label', this, context)); + pushOrConcat(bodyItem.after, splitNewlines(invokeCallbackWithFallback(scoped, 'afterLabel', this, context))); + bodyItems.push(bodyItem); + }); + return bodyItems; + } + getAfterBody(tooltipItems, options) { + return getBeforeAfterBodyLines(invokeCallbackWithFallback(options.callbacks, 'afterBody', this, tooltipItems)); + } + getFooter(tooltipItems, options) { + const { callbacks } = options; + const beforeFooter = invokeCallbackWithFallback(callbacks, 'beforeFooter', this, tooltipItems); + const footer = invokeCallbackWithFallback(callbacks, 'footer', this, tooltipItems); + const afterFooter = invokeCallbackWithFallback(callbacks, 'afterFooter', this, tooltipItems); + let lines = []; + lines = pushOrConcat(lines, splitNewlines(beforeFooter)); + lines = pushOrConcat(lines, splitNewlines(footer)); + lines = pushOrConcat(lines, splitNewlines(afterFooter)); + return lines; + } + _createItems(options) { + const active = this._active; + const data = this.chart.data; + const labelColors = []; + const labelPointStyles = []; + const labelTextColors = []; + let tooltipItems = []; + let i, len; + for(i = 0, len = active.length; i < len; ++i){ + tooltipItems.push(createTooltipItem(this.chart, active[i])); + } + if (options.filter) { + tooltipItems = tooltipItems.filter((element, index, array)=>options.filter(element, index, array, data)); + } + if (options.itemSort) { + tooltipItems = tooltipItems.sort((a, b)=>options.itemSort(a, b, data)); + } + each(tooltipItems, (context)=>{ + const scoped = overrideCallbacks(options.callbacks, context); + labelColors.push(invokeCallbackWithFallback(scoped, 'labelColor', this, context)); + labelPointStyles.push(invokeCallbackWithFallback(scoped, 'labelPointStyle', this, context)); + labelTextColors.push(invokeCallbackWithFallback(scoped, 'labelTextColor', this, context)); + }); + this.labelColors = labelColors; + this.labelPointStyles = labelPointStyles; + this.labelTextColors = labelTextColors; + this.dataPoints = tooltipItems; + return tooltipItems; + } + update(changed, replay) { + const options = this.options.setContext(this.getContext()); + const active = this._active; + let properties; + let tooltipItems = []; + if (!active.length) { + if (this.opacity !== 0) { + properties = { + opacity: 0 + }; + } + } else { + const position = positioners[options.position].call(this, active, this._eventPosition); + tooltipItems = this._createItems(options); + this.title = this.getTitle(tooltipItems, options); + this.beforeBody = this.getBeforeBody(tooltipItems, options); + this.body = this.getBody(tooltipItems, options); + this.afterBody = this.getAfterBody(tooltipItems, options); + this.footer = this.getFooter(tooltipItems, options); + const size = this._size = getTooltipSize(this, options); + const positionAndSize = Object.assign({}, position, size); + const alignment = determineAlignment(this.chart, options, positionAndSize); + const backgroundPoint = getBackgroundPoint(options, positionAndSize, alignment, this.chart); + this.xAlign = alignment.xAlign; + this.yAlign = alignment.yAlign; + properties = { + opacity: 1, + x: backgroundPoint.x, + y: backgroundPoint.y, + width: size.width, + height: size.height, + caretX: position.x, + caretY: position.y + }; + } + this._tooltipItems = tooltipItems; + this.$context = undefined; + if (properties) { + this._resolveAnimations().update(this, properties); + } + if (changed && options.external) { + options.external.call(this, { + chart: this.chart, + tooltip: this, + replay + }); + } + } + drawCaret(tooltipPoint, ctx, size, options) { + const caretPosition = this.getCaretPosition(tooltipPoint, size, options); + ctx.lineTo(caretPosition.x1, caretPosition.y1); + ctx.lineTo(caretPosition.x2, caretPosition.y2); + ctx.lineTo(caretPosition.x3, caretPosition.y3); + } + getCaretPosition(tooltipPoint, size, options) { + const { xAlign , yAlign } = this; + const { caretSize , cornerRadius } = options; + const { topLeft , topRight , bottomLeft , bottomRight } = toTRBLCorners(cornerRadius); + const { x: ptX , y: ptY } = tooltipPoint; + const { width , height } = size; + let x1, x2, x3, y1, y2, y3; + if (yAlign === 'center') { + y2 = ptY + height / 2; + if (xAlign === 'left') { + x1 = ptX; + x2 = x1 - caretSize; + y1 = y2 + caretSize; + y3 = y2 - caretSize; + } else { + x1 = ptX + width; + x2 = x1 + caretSize; + y1 = y2 - caretSize; + y3 = y2 + caretSize; + } + x3 = x1; + } else { + if (xAlign === 'left') { + x2 = ptX + Math.max(topLeft, bottomLeft) + caretSize; + } else if (xAlign === 'right') { + x2 = ptX + width - Math.max(topRight, bottomRight) - caretSize; + } else { + x2 = this.caretX; + } + if (yAlign === 'top') { + y1 = ptY; + y2 = y1 - caretSize; + x1 = x2 - caretSize; + x3 = x2 + caretSize; + } else { + y1 = ptY + height; + y2 = y1 + caretSize; + x1 = x2 + caretSize; + x3 = x2 - caretSize; + } + y3 = y1; + } + return { + x1, + x2, + x3, + y1, + y2, + y3 + }; + } + drawTitle(pt, ctx, options) { + const title = this.title; + const length = title.length; + let titleFont, titleSpacing, i; + if (length) { + const rtlHelper = getRtlAdapter(options.rtl, this.x, this.width); + pt.x = getAlignedX(this, options.titleAlign, options); + ctx.textAlign = rtlHelper.textAlign(options.titleAlign); + ctx.textBaseline = 'middle'; + titleFont = toFont(options.titleFont); + titleSpacing = options.titleSpacing; + ctx.fillStyle = options.titleColor; + ctx.font = titleFont.string; + for(i = 0; i < length; ++i){ + ctx.fillText(title[i], rtlHelper.x(pt.x), pt.y + titleFont.lineHeight / 2); + pt.y += titleFont.lineHeight + titleSpacing; + if (i + 1 === length) { + pt.y += options.titleMarginBottom - titleSpacing; + } + } + } + } + _drawColorBox(ctx, pt, i, rtlHelper, options) { + const labelColors = this.labelColors[i]; + const labelPointStyle = this.labelPointStyles[i]; + const { boxHeight , boxWidth , boxPadding } = options; + const bodyFont = toFont(options.bodyFont); + const colorX = getAlignedX(this, 'left', options); + const rtlColorX = rtlHelper.x(colorX); + const yOffSet = boxHeight < bodyFont.lineHeight ? (bodyFont.lineHeight - boxHeight) / 2 : 0; + const colorY = pt.y + yOffSet; + if (options.usePointStyle) { + const drawOptions = { + radius: Math.min(boxWidth, boxHeight) / 2, + pointStyle: labelPointStyle.pointStyle, + rotation: labelPointStyle.rotation, + borderWidth: 1 + }; + const centerX = rtlHelper.leftForLtr(rtlColorX, boxWidth) + boxWidth / 2; + const centerY = colorY + boxHeight / 2; + ctx.strokeStyle = options.multiKeyBackground; + ctx.fillStyle = options.multiKeyBackground; + drawPoint(ctx, drawOptions, centerX, centerY); + ctx.strokeStyle = labelColors.borderColor; + ctx.fillStyle = labelColors.backgroundColor; + drawPoint(ctx, drawOptions, centerX, centerY); + } else { + ctx.lineWidth = isObject(labelColors.borderWidth) ? Math.max(...Object.values(labelColors.borderWidth)) : labelColors.borderWidth || 1; + ctx.strokeStyle = labelColors.borderColor; + ctx.setLineDash(labelColors.borderDash || []); + ctx.lineDashOffset = labelColors.borderDashOffset || 0; + const outerX = rtlHelper.leftForLtr(rtlColorX, boxWidth - boxPadding); + const innerX = rtlHelper.leftForLtr(rtlHelper.xPlus(rtlColorX, 1), boxWidth - boxPadding - 2); + const borderRadius = toTRBLCorners(labelColors.borderRadius); + if (Object.values(borderRadius).some((v)=>v !== 0)) { + ctx.beginPath(); + ctx.fillStyle = options.multiKeyBackground; + addRoundedRectPath(ctx, { + x: outerX, + y: colorY, + w: boxWidth, + h: boxHeight, + radius: borderRadius + }); + ctx.fill(); + ctx.stroke(); + ctx.fillStyle = labelColors.backgroundColor; + ctx.beginPath(); + addRoundedRectPath(ctx, { + x: innerX, + y: colorY + 1, + w: boxWidth - 2, + h: boxHeight - 2, + radius: borderRadius + }); + ctx.fill(); + } else { + ctx.fillStyle = options.multiKeyBackground; + ctx.fillRect(outerX, colorY, boxWidth, boxHeight); + ctx.strokeRect(outerX, colorY, boxWidth, boxHeight); + ctx.fillStyle = labelColors.backgroundColor; + ctx.fillRect(innerX, colorY + 1, boxWidth - 2, boxHeight - 2); + } + } + ctx.fillStyle = this.labelTextColors[i]; + } + drawBody(pt, ctx, options) { + const { body } = this; + const { bodySpacing , bodyAlign , displayColors , boxHeight , boxWidth , boxPadding } = options; + const bodyFont = toFont(options.bodyFont); + let bodyLineHeight = bodyFont.lineHeight; + let xLinePadding = 0; + const rtlHelper = getRtlAdapter(options.rtl, this.x, this.width); + const fillLineOfText = function(line) { + ctx.fillText(line, rtlHelper.x(pt.x + xLinePadding), pt.y + bodyLineHeight / 2); + pt.y += bodyLineHeight + bodySpacing; + }; + const bodyAlignForCalculation = rtlHelper.textAlign(bodyAlign); + let bodyItem, textColor, lines, i, j, ilen, jlen; + ctx.textAlign = bodyAlign; + ctx.textBaseline = 'middle'; + ctx.font = bodyFont.string; + pt.x = getAlignedX(this, bodyAlignForCalculation, options); + ctx.fillStyle = options.bodyColor; + each(this.beforeBody, fillLineOfText); + xLinePadding = displayColors && bodyAlignForCalculation !== 'right' ? bodyAlign === 'center' ? boxWidth / 2 + boxPadding : boxWidth + 2 + boxPadding : 0; + for(i = 0, ilen = body.length; i < ilen; ++i){ + bodyItem = body[i]; + textColor = this.labelTextColors[i]; + ctx.fillStyle = textColor; + each(bodyItem.before, fillLineOfText); + lines = bodyItem.lines; + if (displayColors && lines.length) { + this._drawColorBox(ctx, pt, i, rtlHelper, options); + bodyLineHeight = Math.max(bodyFont.lineHeight, boxHeight); + } + for(j = 0, jlen = lines.length; j < jlen; ++j){ + fillLineOfText(lines[j]); + bodyLineHeight = bodyFont.lineHeight; + } + each(bodyItem.after, fillLineOfText); + } + xLinePadding = 0; + bodyLineHeight = bodyFont.lineHeight; + each(this.afterBody, fillLineOfText); + pt.y -= bodySpacing; + } + drawFooter(pt, ctx, options) { + const footer = this.footer; + const length = footer.length; + let footerFont, i; + if (length) { + const rtlHelper = getRtlAdapter(options.rtl, this.x, this.width); + pt.x = getAlignedX(this, options.footerAlign, options); + pt.y += options.footerMarginTop; + ctx.textAlign = rtlHelper.textAlign(options.footerAlign); + ctx.textBaseline = 'middle'; + footerFont = toFont(options.footerFont); + ctx.fillStyle = options.footerColor; + ctx.font = footerFont.string; + for(i = 0; i < length; ++i){ + ctx.fillText(footer[i], rtlHelper.x(pt.x), pt.y + footerFont.lineHeight / 2); + pt.y += footerFont.lineHeight + options.footerSpacing; + } + } + } + drawBackground(pt, ctx, tooltipSize, options) { + const { xAlign , yAlign } = this; + const { x , y } = pt; + const { width , height } = tooltipSize; + const { topLeft , topRight , bottomLeft , bottomRight } = toTRBLCorners(options.cornerRadius); + ctx.fillStyle = options.backgroundColor; + ctx.strokeStyle = options.borderColor; + ctx.lineWidth = options.borderWidth; + ctx.beginPath(); + ctx.moveTo(x + topLeft, y); + if (yAlign === 'top') { + this.drawCaret(pt, ctx, tooltipSize, options); + } + ctx.lineTo(x + width - topRight, y); + ctx.quadraticCurveTo(x + width, y, x + width, y + topRight); + if (yAlign === 'center' && xAlign === 'right') { + this.drawCaret(pt, ctx, tooltipSize, options); + } + ctx.lineTo(x + width, y + height - bottomRight); + ctx.quadraticCurveTo(x + width, y + height, x + width - bottomRight, y + height); + if (yAlign === 'bottom') { + this.drawCaret(pt, ctx, tooltipSize, options); + } + ctx.lineTo(x + bottomLeft, y + height); + ctx.quadraticCurveTo(x, y + height, x, y + height - bottomLeft); + if (yAlign === 'center' && xAlign === 'left') { + this.drawCaret(pt, ctx, tooltipSize, options); + } + ctx.lineTo(x, y + topLeft); + ctx.quadraticCurveTo(x, y, x + topLeft, y); + ctx.closePath(); + ctx.fill(); + if (options.borderWidth > 0) { + ctx.stroke(); + } + } + _updateAnimationTarget(options) { + const chart = this.chart; + const anims = this.$animations; + const animX = anims && anims.x; + const animY = anims && anims.y; + if (animX || animY) { + const position = positioners[options.position].call(this, this._active, this._eventPosition); + if (!position) { + return; + } + const size = this._size = getTooltipSize(this, options); + const positionAndSize = Object.assign({}, position, this._size); + const alignment = determineAlignment(chart, options, positionAndSize); + const point = getBackgroundPoint(options, positionAndSize, alignment, chart); + if (animX._to !== point.x || animY._to !== point.y) { + this.xAlign = alignment.xAlign; + this.yAlign = alignment.yAlign; + this.width = size.width; + this.height = size.height; + this.caretX = position.x; + this.caretY = position.y; + this._resolveAnimations().update(this, point); + } + } + } + _willRender() { + return !!this.opacity; + } + draw(ctx) { + const options = this.options.setContext(this.getContext()); + let opacity = this.opacity; + if (!opacity) { + return; + } + this._updateAnimationTarget(options); + const tooltipSize = { + width: this.width, + height: this.height + }; + const pt = { + x: this.x, + y: this.y + }; + opacity = Math.abs(opacity) < 1e-3 ? 0 : opacity; + const padding = toPadding(options.padding); + const hasTooltipContent = this.title.length || this.beforeBody.length || this.body.length || this.afterBody.length || this.footer.length; + if (options.enabled && hasTooltipContent) { + ctx.save(); + ctx.globalAlpha = opacity; + this.drawBackground(pt, ctx, tooltipSize, options); + overrideTextDirection(ctx, options.textDirection); + pt.y += padding.top; + this.drawTitle(pt, ctx, options); + this.drawBody(pt, ctx, options); + this.drawFooter(pt, ctx, options); + restoreTextDirection(ctx, options.textDirection); + ctx.restore(); + } + } + getActiveElements() { + return this._active || []; + } + setActiveElements(activeElements, eventPosition) { + const lastActive = this._active; + const active = activeElements.map(({ datasetIndex , index })=>{ + const meta = this.chart.getDatasetMeta(datasetIndex); + if (!meta) { + throw new Error('Cannot find a dataset at index ' + datasetIndex); + } + return { + datasetIndex, + element: meta.data[index], + index + }; + }); + const changed = !_elementsEqual(lastActive, active); + const positionChanged = this._positionChanged(active, eventPosition); + if (changed || positionChanged) { + this._active = active; + this._eventPosition = eventPosition; + this._ignoreReplayEvents = true; + this.update(true); + } + } + handleEvent(e, replay, inChartArea = true) { + if (replay && this._ignoreReplayEvents) { + return false; + } + this._ignoreReplayEvents = false; + const options = this.options; + const lastActive = this._active || []; + const active = this._getActiveElements(e, lastActive, replay, inChartArea); + const positionChanged = this._positionChanged(active, e); + const changed = replay || !_elementsEqual(active, lastActive) || positionChanged; + if (changed) { + this._active = active; + if (options.enabled || options.external) { + this._eventPosition = { + x: e.x, + y: e.y + }; + this.update(true, replay); + } + } + return changed; + } + _getActiveElements(e, lastActive, replay, inChartArea) { + const options = this.options; + if (e.type === 'mouseout') { + return []; + } + if (!inChartArea) { + return lastActive; + } + const active = this.chart.getElementsAtEventForMode(e, options.mode, options, replay); + if (options.reverse) { + active.reverse(); + } + return active; + } + _positionChanged(active, e) { + const { caretX , caretY , options } = this; + const position = positioners[options.position].call(this, active, e); + return position !== false && (caretX !== position.x || caretY !== position.y); + } +} +var plugin_tooltip = { + id: 'tooltip', + _element: Tooltip, + positioners, + afterInit (chart, _args, options) { + if (options) { + chart.tooltip = new Tooltip({ + chart, + options + }); + } + }, + beforeUpdate (chart, _args, options) { + if (chart.tooltip) { + chart.tooltip.initialize(options); + } + }, + reset (chart, _args, options) { + if (chart.tooltip) { + chart.tooltip.initialize(options); + } + }, + afterDraw (chart) { + const tooltip = chart.tooltip; + if (tooltip && tooltip._willRender()) { + const args = { + tooltip + }; + if (chart.notifyPlugins('beforeTooltipDraw', { + ...args, + cancelable: true + }) === false) { + return; + } + tooltip.draw(chart.ctx); + chart.notifyPlugins('afterTooltipDraw', args); + } + }, + afterEvent (chart, args) { + if (chart.tooltip) { + const useFinalPosition = args.replay; + if (chart.tooltip.handleEvent(args.event, useFinalPosition, args.inChartArea)) { + args.changed = true; + } + } + }, + defaults: { + enabled: true, + external: null, + position: 'average', + backgroundColor: 'rgba(0,0,0,0.8)', + titleColor: '#fff', + titleFont: { + weight: 'bold' + }, + titleSpacing: 2, + titleMarginBottom: 6, + titleAlign: 'left', + bodyColor: '#fff', + bodySpacing: 2, + bodyFont: {}, + bodyAlign: 'left', + footerColor: '#fff', + footerSpacing: 2, + footerMarginTop: 6, + footerFont: { + weight: 'bold' + }, + footerAlign: 'left', + padding: 6, + caretPadding: 2, + caretSize: 5, + cornerRadius: 6, + boxHeight: (ctx, opts)=>opts.bodyFont.size, + boxWidth: (ctx, opts)=>opts.bodyFont.size, + multiKeyBackground: '#fff', + displayColors: true, + boxPadding: 0, + borderColor: 'rgba(0,0,0,0)', + borderWidth: 0, + animation: { + duration: 400, + easing: 'easeOutQuart' + }, + animations: { + numbers: { + type: 'number', + properties: [ + 'x', + 'y', + 'width', + 'height', + 'caretX', + 'caretY' + ] + }, + opacity: { + easing: 'linear', + duration: 200 + } + }, + callbacks: defaultCallbacks + }, + defaultRoutes: { + bodyFont: 'font', + footerFont: 'font', + titleFont: 'font' + }, + descriptors: { + _scriptable: (name)=>name !== 'filter' && name !== 'itemSort' && name !== 'external', + _indexable: false, + callbacks: { + _scriptable: false, + _indexable: false + }, + animation: { + _fallback: false + }, + animations: { + _fallback: 'animation' + } + }, + additionalOptionScopes: [ + 'interaction' + ] +}; + +// eslint-disable-next-line @typescript-eslint/ban-ts-comment +// Register built-ins Chart.register(controllers, scales, elements, plugins); -Chart.helpers = {...helpers}; +Chart.helpers = { + ...helpers +}; Chart._adapters = _adapters; Chart.Animation = Animation; Chart.Animations = Animations; @@ -13385,10 +14686,11 @@ Chart.layouts = layouts; Chart.platforms = platforms; Chart.Scale = Scale; Chart.Ticks = Ticks; +// Compatibility with ESM extensions Object.assign(Chart, controllers, scales, elements, plugins, platforms); Chart.Chart = Chart; if (typeof window !== 'undefined') { - window.Chart = Chart; + window.Chart = Chart; } return Chart; diff --git a/lib/thirdpartylibs.xml b/lib/thirdpartylibs.xml index c3479d2eb8f..ed46697aa3b 100644 --- a/lib/thirdpartylibs.xml +++ b/lib/thirdpartylibs.xml @@ -388,11 +388,11 @@ All rights reserved. amd/src/chartjs-lazy.js Chart.js Simple yet flexible JavaScript charting for designers & developers. - 3.8.0 + 4.2.1 MIT https://github.com/chartjs/Chart.js - 2016 Nick Downie + 2014-2022 Chart.js Contributors