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1753 commits

Author SHA1 Message Date
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
c0bb6890bd Switch back to CURVETIME_EPSILON now that overlap edge-case appears to be handled. 2015-10-01 20:47:56 -05:00
Jürg Lehni
9b883e5fb6 Introduce new TRIGONOMETRIC_EPSILON with higher precision than GEOMETRIC_EPSILON. 2015-10-01 20:44:27 -05:00
Jürg Lehni
f5012a78e9 Reformat nested ternary operators again. 
This got messed up in a recent refactoring.
 2015-10-01 20:24:47 -05:00
Jürg Lehni
8aca088bf6 Clean-up splitPath() code a bit. 2015-10-01 09:41:57 -05:00
Jürg Lehni
72f9705615 Fix overeager refactoring in c77165be3a 2015-10-01 08:49:26 -05:00
Jürg Lehni
fee3a90329 Fixed leaked globals. 2015-10-01 07:05:00 -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
75a004187e Improve Line.intersect() to more reliably find interesctions at the beginnings / ends. 
Relates to #784
 2015-10-01 04:38:48 -05:00
Jürg Lehni
53ff973f06 Perform the faster check first. 2015-10-01 03:38:35 -05:00
Jürg Lehni
5f706a4a5d Use lower tolerance in bezier clipping code. 
This really should be Numerical.CURVETIME_EPSILON, but I get better results using Numerical.GEOMETRIC_EPSILON. Perhaps Numerical.CURVETIME_EPSILON / 2 is the right value to use though.
 2015-09-30 14:19:40 -05:00
Jürg Lehni
d385d25a51 Include comment regarding CurveLocation#equals() modification. 2015-09-30 13:48:28 -05:00
Jürg Lehni
9bcf369e6a Ony split potentially self-intersecting curves if there are actual canditates. 2015-09-30 13:44:51 -05:00
Jürg Lehni
45040abc53 More clean-ups for #773 
- Use local variables instead of array lookups for values used repeatetly, and merge with pre-existing variables.
- Add some more comments and reference to long explaining post in issue.
 2015-09-30 13:40:01 -05:00
Jürg Lehni
1231153553 Start cleaning up code from #773 
- Use Line object isntead of static methods
- Do not rely on Math.sign() as it's not supported on all browsers
- Wrap lines at 80 char width.
 2015-09-30 13:07:55 -05:00
Jürg Lehni
2a7d1c5728 Improve CurveLocation#equals() 
Relates to #784, described in https://github.com/paperjs/paper.js/issues/784#issuecomment-143161586
 2015-09-30 12:47:02 -05:00
Jürg Lehni
07874034e9 Merge pull request #793 from iconexperience/Fix-for-#773 
Fix for #773
 2015-09-30 11:51:37 -05:00
Jan
ec70fa1806 Fix for #773 
Indroduced more reliable method for finding self intersection on curves.
 2015-09-30 12:19:09 +02:00
Jürg Lehni
317b809fee Only calculate non-parametric bezier curve if values are actually used. 2015-09-26 11:46:54 -05:00
Jürg Lehni
ea3cc63e2e Reformat code a bit. 2015-09-26 07:41:03 -04:00
Jan
3fa810a557 Bugfix for #791 and performance improvement 
Prevent infinite loop for degenerate curve. Additionally only calculate sy if necessary and save one call to `Curve.solveCubic`
 2015-09-26 07:36:12 -04:00
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
cf5bf38c3b Minor simplification. 2015-09-23 13:33:35 -04:00
Jürg Lehni
cc7e60e51a Revert db1ecdddd5 and fix issue properly this time. 
Hopefully?
 2015-09-23 12:44:00 -04:00
Jürg Lehni
20f950ac65 Implement #isFirst() / #isLast() tests on Segment and Curve. 2015-09-23 12:26:44 -04:00
Jürg Lehni
db1ecdddd5 Fix filtering of locations at ends of curves in addCurveLineIntersections() 
Only occured when the line / curve had to be flipped.
 2015-09-21 16:56:08 -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
84bcc537e1 Simplify addCurveLineIntersections() and exclude end points. 2015-09-21 12:13:53 -04:00
Jürg Lehni
0f61ce896a Some code clean-up. 2015-09-21 10:54:33 -04:00
Jürg Lehni
812ac63e60 Compare points instead of curve time paramters for better precision and reliability. 2015-09-21 10:53:53 -04:00
Jürg Lehni
e36319b71a Give PathItem#getIntersections() a way to filter found intersections right away. 
And use it in #getCrossings()
 2015-09-21 10:41:59 -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
1ad95c9020 Improve CurveLocation.add() to always merge duplicates. 
We nee to check neighbors of the found location too.
 2015-09-21 07:06:41 -04:00
Jürg Lehni
1302df0cb8 Fix variable leackage. 2015-09-20 23:22:31 +02:00
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
a95ba12bc3 isCrossing() needs parameter checks on both curves. 2015-09-18 22:26:09 +02:00
Jürg Lehni
b5af47a7b1 Implement a better approach to calculate Path#clockwise... 
...merging code with Path#area.

Closes #788
 2015-09-18 21:41:54 +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
10eafccd1a Implement 0.75 * handle scaling in curve bounds checks. 2015-09-18 21:09:57 +02:00
Jürg Lehni
17dc5eb51a Allow gettings of unstyled bounds on curves without paths. 2015-09-18 20:15:18 +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
Jürg Lehni
c70f8cb3cc Simplify overlap calculations by keeping the original winding value. 2015-09-18 17:46:46 +02:00
Jürg Lehni
59a23fdd3f Improve debug logging. 2015-09-18 17:33:42 +02:00
Jürg Lehni
73a9989261 Fix CurveLocation#isCrossing() for locations in the middle of curves. 2015-09-18 17:32:19 +02:00
Jürg Lehni
ae93652b56 Clean up getIntersection() methods. 
Now that they filter the results on the fly.
 2015-09-18 17:31:23 +02:00
Jürg Lehni
85311cfb29 Improve Path#getArea() and #isClockwise() 2015-09-18 17:27:29 +02:00
Jürg Lehni
17356637ac Clean up new CurveLocation code. 2015-09-17 10:18:45 +02:00
Jürg Lehni
9c812335e5 Curve._filterIntersections() is now without a job. 2015-09-17 09:39:22 +02:00
Jürg Lehni
1508b8fc75 Improve debug logging. 2015-09-17 01:15:41 +02:00
Jürg Lehni
2750c34090 Improve the way intersections are sorted and merged. 
Use a binary search to determine insertion index and compare with neighbours to eliminate doubles.
 2015-09-17 01:03:13 +02:00
Jürg Lehni
30f1441c26 Various boolean code clean-ups. 2015-09-16 18:34:35 +02:00
Jürg Lehni
d0332f843f Renamed Curve#reverse() and Segment#reverse() to #reversed() 
Since they don't modify the object. Also introduce new Segment#reverse(), which does.
 2015-09-16 18:16:48 +02:00
Jürg Lehni
857e27e3a8 Fix accidental variable leackage. 2015-09-16 18:15:26 +02:00
Jürg Lehni
7061bc0e0a Simplify CurveLocation.sort() code 
Relates to #787
 2015-09-16 10:52:51 +02:00
Jürg Lehni
0980ad3fe9 Fix remaining issues with curve location sorting. 
Relates to #787
 2015-09-16 10:44:41 +02:00
Jürg Lehni
f8bd7a2005 Improve debug logging and drawing. 
And add more descriptive comments to tracePath().
 2015-09-16 09:52:41 +02:00
Jürg Lehni
197aa4b4cf No need to wrap angles as they're always -PI < a < PI. 2015-09-16 02:56:24 +02:00
Jürg Lehni
2026e5571e Some code cleanup and comments in isCrossing(). 2015-09-16 02:54:25 +02:00
Jürg Lehni
e548391276 Use the zero-epsilon when checking beginnings and ends of curves for overlaps. 
Relates to #786 and #777
 2015-09-16 02:33:56 +02:00
Jürg Lehni
8f9549dd12 Fix non-breaking spaces. 2015-09-16 02:29:17 +02:00
Jürg Lehni
ad276ba46a More improvements in tracePaths() 
- Use new isCrossing() check
- Correctly switch crossings in exclusion
 2015-09-15 19:39:35 +02:00
Jürg Lehni
60a725b527 Implement correct CurveLocation#isCrossing() check. 
And improve curve caching. Still needs work.
 2015-09-15 19:38:28 +02:00
Jürg Lehni
3ce7d88347 Second attempt at simplifying boolean code. 
This time without endless loops.
 2015-09-15 16:31:05 +02:00
Jürg Lehni
089738478c Bring back boolean exclusion handling to reverted code. 2015-09-15 15:03:12 +02:00
Jürg Lehni
7b3f8598f4 Make sure all results of boolean operations are styled and inserted in the sample way. 2015-09-15 14:11:27 +02:00
Jürg Lehni
e4b4037721 Revert "Improve handling of exclude() operations." 
This reverts commit e85586d0fe.
 2015-09-15 13:01:52 +02:00
Jürg Lehni
5e327f7a48 Revert "Substantial simplifications in boolean code." 
This reverts commit a665175a89.
 2015-09-14 15:23:46 +02:00
Jürg Lehni
7aef20ae6b Compare intersection points instead of curve time when deciding to merge. 
Use same precision indepenent of curve length.
 2015-09-14 15:18:44 +02:00
Jürg Lehni
fec479167c Improve debug logging and drawing. 2015-09-14 15:16:52 +02:00
Jürg Lehni
a665175a89 Substantial simplifications in boolean code. 
These were probably made possible thanks to increased precision elsewhere in the lib.
 2015-09-14 01:20:03 +02:00
Jürg Lehni
e85586d0fe Improve handling of exclude() operations. 
Determine wether to switch to other intersection or not based on tangents.

Closes #781 again.
 2015-09-14 00:51:46 +02:00
Jürg Lehni
b532c9cce2 Handle boolean exclusion as a special case. 
Switching each time an intersection is encountered.

Closes #781
 2015-09-13 22:12:04 +02:00
Jürg Lehni
fbb0f3f37d Remove left-over debugging code. 2015-09-13 21:50:35 +02:00
Jürg Lehni
b231e9b2a8 Accept CompoundPath items as children of CompoundPath items. 
Just add their children and remove the parent.

Closes #541
 2015-09-13 16:06:24 +02:00
Jürg Lehni
e2d2c836e5 Some boolean code clean-up. 2015-09-13 14:19:56 +02:00
Jürg Lehni
ea2ff5ec28 Increase precision in Curve.getParameterOf() 
Usually only requires 0-1 more iteration.
 2015-09-13 13:45:20 +02:00