The DXF exporter was missing the $INSUNITS header variable, which tells
CAD software what physical units the drawing coordinates represent. Without
it, other programs have no reliable way to determine the coordinate scale.
Add $INSUNITS to the HEADER section alongside the existing $MEASUREMENT
variable. When exporting in millimeters, $INSUNITS is set to 4; when
exporting in inches, it is set to 1.
Fixes https://gitlab.com/kicad/code/kicad/-/issues/23181
This requires us not resetting PS/PDF's lineStyles
with a "move" instruction.
Also fixes DXF to handle arcs in SHAPE_LINE_CHAINs,
even if it doesn't handle lineStyles.
Recommendation is to avoid using the year nomenclature as this
information is already encoded in the git repo. Avoids needing to
repeatly update.
Also updates AUTHORS.txt from current repo with contributor names
- in DXF coordinates were using 6 digits for coordinate mantissa: this is not
enough for coord in inches. Now use 16 digits
- Arc( VECTOR2I& aCentre, EDA_ANGLE& aStartAngle, EDA_ANGLE& aEndAngle, ...)
was using integers for coord. This creates significant errors for start point
and end points of the arc. Now the center is given in double, and its position
is calculated from angle end points (and radius) to do not generate a position error
for these end points (previously the error could be 20 ... 50 nm)
Fixes#15056https://gitlab.com/kicad/code/kicad/-/issues/15056
Old PLOTTER::Text is not (yet) removed, but it use negative text size
to mirrored text, which is not really compatible with some plotters (especially PDF).
Using TEXT_ATTRIBUTES is much easy and much better,
so PLOTTER::PlotText() is added.
Note: "old" PLOTTER::Text() is not removed yet.
Using arc angles to plot an arc is really error prone due to different
options between plotters, and angles defined in Kicad, using this version of
arc plotting from Kicad is no longer allowed in Kicad code.
Also moves most navigation code to SCH_NAVIGATION_TOOL.
Also changes page number href to anchor syntax ('#foo').
Also adds hypertext processing to SCH_TEXTBOXes.
Also adds combobox with schematic pages to text properties dialog.
Seth Hillbrand