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Boolean -fix: Correctly perform boolean operations regardless of the input paths' winding direction

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hkrish 2013-09-17 19:50:13 +02:00
parent 669fb1638a
commit 4f54ac1f4c
1 changed files with 6 additions and 4 deletions
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10
src/path/PathItem.Boolean.js
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@ -113,10 +113,12 @@ PathItem.inject(new function() {
// result of that on to the second call.
splitPath(splitPath(intersections, true));
// Do operator specific calculations before we begin
if (subtract) {
path2.reverse();
path2Clockwise = !path2Clockwise;
}
// Make both paths at clockwise orientation, except when @subtract = true
// We need both paths at opposit orientation for subtraction
!path1Clockwise && path1.reverse();
!(subtract ^ path2Clockwise) && path2.reverse();
path1Clockwise = true;
path2Clockwise = !subtract;
var paths = []
.concat(path1._children || [path1])
.concat(path2._children || [path2]),