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Clean up PR #931

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Closes #930
This commit is contained in:
Jürg Lehni 2016-02-14 14:15:17 +01:00
parent 9c9f40d05a
commit 79d446136a
1 changed files with 4 additions and 3 deletions
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7
src/path/Path.js
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@ -2320,11 +2320,12 @@ new function() { // PostScript-style drawing commands
} else {
// #3: arcTo(to, radius, rotation, clockwise, large)
// Drawing arcs in SVG style:
var radius = Size.read(arguments);
var radius = Size.read(arguments),
isZero = Numerical.isZero;
// If rx = 0 or ry = 0 then this arc is treated as a
// straight line joining the endpoints.
if (Numerical.isZero(radius.width)
|| Numerical.isZero(radius.height))
// NOTE: radius.isZero() would require both values to be 0.
if (isZero(radius.width) || isZero(radius.height))
return this.lineTo(to);
// See for an explanation of the following calculations:
// http://www.w3.org/TR/SVG/implnote.html#ArcImplementationNotes