scratchfoundation/paper.js
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262 commits

Author SHA1 Message Date
Jürg Lehni
896b068266 Switch from recursion to a simple loop in getIntersection() 2015-10-06 21:30:51 +02:00
Jürg Lehni
8e4bef217a Change Curve.getParameterOf() to accept a point instead of x, y arguments. 2015-10-06 21:24:58 +02:00
Jürg Lehni
3ac3df8d32 Rewrite method for linking and choosing multiple intersections in the same location. 
The special handling of overlaps reduces the amount of remaining glitches substantially.

Relates to #784.
 2015-10-06 21:09:35 +02:00
Jürg Lehni
fcdf916863 Some tweaks to debugging code. 
Leave open path artifacts clearly visible for now, so they can be more easily detected.
 2015-10-05 17:42:01 +02:00
Jürg Lehni
93cacffd06 Improve comments describing isValid() calls. 2015-10-05 10:56:29 +02:00
Jürg Lehni
7494f880f8 Revert previous commit, due to wrong assumption. 2015-10-05 10:44:34 +02:00
Jürg Lehni
90b4cf7292 No need to check for overlap when determining value for unadjusted 
Since setting only changes behavior if there actually is an overlap.
 2015-10-05 05:52:35 +02:00
Jürg Lehni
05bc6afdbb Always give intersection segment priority over current segment if valid. 
Fixes example 22 in #784, doesn't seem to introduce new issues, unlike last time I tried this approach.
 2015-10-05 05:34:22 +02:00
Jürg Lehni
bd4874d73e Improve debug logging of windings. 2015-10-05 04:57:12 +02:00
Jürg Lehni
ba76ed8671 Consider the winding contribution at the intersection of the next segment as well. 
Fixes both example 20 and example 21 in #784
 2015-10-05 04:24:04 +02:00
Jürg Lehni
035a3a1b8c Remove unnecessary _visited check. 2015-10-04 02:27:56 +02:00
Jürg Lehni
ebc956353f Move code to adjust segments after split to CurveLocation. 2015-10-04 02:25:33 +02:00
Jürg Lehni
8073183010 Use getIntersections() with right filter instead of getCrossings() for boolean operations. 2015-10-03 17:17:12 -04:00
Jürg Lehni
5af8515d1a Commit some useful debug code, deactivated for now. 2015-10-03 16:18:00 -04:00
Jürg Lehni
61fc75ace3 Some code clean-up. 2015-10-03 10:40:33 -05:00
Jürg Lehni
7496a7c9e2 Try linked up intersections first before switching to the other intersecetion. 2015-10-02 19:00:32 -05:00
Jürg Lehni
632eb25f19 Bring back code removed in 11611c8fe2 again. 
But add a _visited check, to get best of both approaches.
 2015-10-02 18:57:45 -05:00
Jürg Lehni
11611c8fe2 Remove isValid() check for current segment before attempting the switch. 
This properly fixes example 14 in #784.
 2015-10-02 01:06:36 -05:00
Jürg Lehni
8dfa721e5a Adjust debug rendering. 2015-10-01 21:12:15 -05:00
Jürg Lehni
a808aaf0fa Remove unnecessary check for other === start. 2015-10-01 21:11:51 -05:00
Jürg Lehni
de57a7fbc8 Simplify tracePaths() code. 2015-10-01 21:09:30 -05:00
Jürg Lehni
8aca088bf6 Clean-up splitPath() code a bit. 2015-10-01 09:41:57 -05:00
Jürg Lehni
b8c6eb46ad Fix weirdness of Curve#divide() modifying the wrong Curve object. 2015-10-01 06:52:08 -05:00
Jürg Lehni
c77165be3a Fix issue in Curve#divide() that lead to intersection segments being linked up wrongly. 
Relates to #784
 2015-10-01 06:21:17 -05:00
Jürg Lehni
53dd726057 Rename ignoreStraight argument to _setHandles 2015-10-01 05:55:22 -05:00
Jürg Lehni
fd927cbe22 Properly solve issues with self-intersecting special case. 
(e.g. shapes resembling the infinity sign)
 2015-09-24 12:49:39 -04:00
Jürg Lehni
fc0b5a8858 Give the intersection that brings us back to the beginning alwasy the priority. 2015-09-24 07:47:39 -04:00
Jürg Lehni
c79166a46f Mark last segment as visited when done. 2015-09-23 14:31:12 -04:00
Jürg Lehni
6a29f200e3 Always use getIntersection(), even on the first segment. 
Now that it works well.
 2015-09-21 12:44:53 -04:00
Jürg Lehni
51c34444db Some more debugging code clean-up. 2015-09-21 12:18:57 -04:00
Jürg Lehni
0f61ce896a Some code clean-up. 2015-09-21 10:54:33 -04:00
Jürg Lehni
f6f42fe09b Improve handling of overlap ambiguity in getIntersection() 
Two passes are needed, first strict, then non-strict, to prevent 'better' next candiates over 'worse' ones.
 2015-09-21 09:44:17 -04:00
Jürg Lehni
19a17b2918 Prevent infinite loops through circular references of multiple intersections. 2015-09-21 09:43:19 -04:00
Jürg Lehni
40570b3e59 Furher improve boolean debug logging and drawing. 2015-09-21 09:42:47 -04:00
Jürg Lehni
b68be09c87 Fix all accidental non-breaking spaces. 2015-09-20 22:39:28 +02:00
Jürg Lehni
530b8b7bc8 Handle adjusted overlap winding contribution and operator calls through new isValid() function. 2015-09-20 15:50:26 +02:00
Jürg Lehni
738cc4c214 Yet another improvement in multiple interseections boolean code. 
This appears to be the one. The only remaining failing cases seem to be linked to getting the same intersection twice now!

Relates to #787
 2015-09-20 15:29:54 +02:00
Jürg Lehni
946157f1b1 Add note about usage of _originalWinding. 2015-09-20 14:19:14 +02:00
Jürg Lehni
20ed1e007c More fixes in handling of multiple intersection locations. 2015-09-20 14:17:23 +02:00
Jürg Lehni
5db9703aff No more need to check for crossings since every intersection is now either an overlap or a crossing. 2015-09-20 14:16:47 +02:00
Jürg Lehni
53862233e5 Improve debug logging of new multiple intersections code. 2015-09-19 22:47:57 +02:00
Jürg Lehni
4df65c1809 Various improvements to code that handles multiple intersections in same location. 
Relates to #787
 2015-09-19 19:07:44 +02:00
Jürg Lehni
1d6f552212 Prevent endless loop through circular references. 2015-09-19 13:42:48 +02:00
Jürg Lehni
2c8634793c First attempt at implementing handling of multiple intersections in the same location. 
Relates to #787, works pretty well already for many situations.
 2015-09-19 13:21:29 +02:00
Jürg Lehni
081de1d12a 'exclude' operation needs overlap handling too. 2015-09-18 22:29:29 +02:00
Jürg Lehni
8cf562c57b Revert "Remove special handling of winding contribution on overlaps" 
This reverts commit c6a38589e9.
The special handling seems to be still necessary in some edge cases, e.g. in BooleanOperations.html
 2015-09-18 21:10:58 +02:00
Jürg Lehni
c6a38589e9 Remove special handling of winding contribution on overlaps 
Looks like the new code handles this correclty now!
 2015-09-18 18:06:15 +02:00
Jürg Lehni
23443dc8f4 Clean up boolean code. 2015-09-18 17:51:57 +02:00
Jürg Lehni
66b01973f0 Simplify exclusion handling for new boolean code. 2015-09-18 17:51:43 +02:00
Jürg Lehni
87687d816b Implement PathItem#resolveCrossings() based on the new #getCrossings() method. 2015-09-18 17:51:03 +02:00