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Prevent infinite loops through circular references of multiple intersections.

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Jürg Lehni 2015-09-21 09:43:19 -04:00
parent 40570b3e59
commit 19a17b2918
1 changed files with 15 additions and 9 deletions
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24
src/path/PathItem.Boolean.js
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@ -215,15 +215,21 @@ PathItem.inject(new function() {
// Link the new segment with the intersection on the other curve
var inter = segment._intersection;
if (inter) {
var other = inter._curve;
console.log('Link'
+ ', seg: ' + segment._path._id + '.' + segment._index
+ ', other: ' + other._path._id);
// Create a chain of possible intersections linked through _next
// First find the last intersection in the chain, then link it.
while (inter._next)
inter = inter._next;
inter._next = loc._intersection;
var other = inter._intersection,
next = loc._next;
while (next && next !== other) {
next = next._next;
}
if (!next) {
console.log('Link'
+ ', seg: ' + segment._path._id + '.' + segment._index
+ ', other: ' + inter._curve._path._id);
// Create a chain of possible intersections linked through _next
// First find the last intersection in the chain, then link it.
while (inter._next)
inter = inter._next;
inter._next = loc._intersection;
}
} else {
segment._intersection = loc._intersection;
}