scratchfoundation/paper.js
1
0
Fork 0
mirror of https://github.com/scratchfoundation/paper.js.git synced 2025-01-03 19:45:44 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

Reduce the amount of path reversing required.

Browse source 
We don't need paths at clockwise / counter-clockwise orientation. We simply need them oriented the same way, or the opposite way.
This commit is contained in:
Jürg Lehni 2015-01-04 01:51:27 +01:00
parent 390ef324f2
commit cca6606f72
1 changed files with 3 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
src/path/PathItem.Boolean.js
View file

@ -71,12 +71,10 @@ PathItem.inject(new function() {
// i.e. subtraction(A:Path, B:Path):CompoundPath etc.
var _path1 = preparePath(path1),
_path2 = path2 && path1 !== path2 && preparePath(path2);
// Give both paths clockwise orientation except for subtraction
// Give both paths the same orientation except for subtraction
// and exclusion, where we need them at opposite orientation.
if (!_path1.isClockwise())
_path1.reverse();
if (_path2 && !(/^(subtract|exclude)$/.test(operation)
^ _path2.isClockwise()))
if (_path2 && /^(subtract|exclude)$/.test(operation)
^ (_path2.isClockwise() !== _path1.isClockwise()))
_path2.reverse();
// Split curves at intersections on both paths. Note that for self
// intersection, _path2 will be null and getIntersections() handles it.