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graphlib: NOBUG previous Moodle-specific hack had a bug when y_max was very small. This would round, e.g. 10^-5 to 0 which would break the axis.

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tjhunt
2009-10-06 17:49:47 +00:00
parent b3fab0f876
commit be1463394f
1 changed files with 3 additions and 1 deletions
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lib/graphlib.php
+3 -1
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@@ -1159,7 +1159,9 @@ class graph {
if ($max < 0) $factor = - pow(10, (floor(log10(abs($max))) + $resolution) );
else $factor = pow(10, (floor(log10(abs($max))) - $resolution) );
}
$factor = round($factor * 1000.0) / 1000.0; // To avoid some wierd rounding errors (Moodle)
if ($factor > 0.1) { // To avoid some wierd rounding errors (Moodle)
$factor = round($factor * 1000.0) / 1000.0; // To avoid some wierd rounding errors (Moodle)
} // To avoid some wierd rounding errors (Moodle)
$max = $factor * @ceil($max / $factor);
$min = $factor * @floor($min / $factor);