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Author SHA1 Message Date
sheaf 50d99e1e4b improve intervallic Bézier evaluation 
Now we evaluate Bézier curves using an AABB computation. This results
in tighter intervals, which means that the cusp-finding algorithm
is better behaved.
 2023-04-25 23:07:18 +02:00
sheaf 7db3cbef33 more work into observability 2023-03-13 22:09:15 +01:00
sheaf 52420a1169 experiment: FMA backend for interval arithmetic 
also includes the start of a way to observe which equations
are being solved, which should help with improving the performance of
the interval Newton method
 2023-03-12 19:15:58 +01:00
sheaf cd6b7368f8 Update cabal.project for GHC 9.6 2023-02-09 17:53:25 +01:00
sheaf 4cd11fa02f add export to SVG functionality 2023-02-03 14:16:57 +01:00
sheaf 8ac22b4738 some optimisations 2023-01-29 04:03:36 +01:00
sheaf 4174d9b5b6 rejigging 2023-01-28 01:26:47 +01:00
sheaf 1ae84fec97 precondition before taking Gauss-Seidel step 2023-01-23 13:58:52 +01:00
sheaf 78c03b99e1 change fitpoint render size 2023-01-23 02:01:56 +01:00
sheaf 86874882e4 fix bug in partitions function 2023-01-23 02:01:03 +01:00
sheaf dd503df126 draw cusps in debug mode 2023-01-23 00:37:56 +01:00
sheaf d2a485f71e Interval Newton method for cusp isolation 2023-01-22 18:00:58 +01:00
sheaf eb68c27941 add separate EnvelopeEquation module (forgot to add earlier) 2023-01-22 18:00:47 +01:00
sheaf bdcac18ab9 add chain rule R^n -> R -> R 2023-01-22 04:51:23 +01:00
sheaf 236055b4ca do the interval brush stroking at degree 3 2023-01-21 15:24:08 +01:00
sheaf 6945aac704 improve show instances 2023-01-20 17:42:17 +01:00
sheaf 25d738b252 more WIP with TH now 2023-01-20 16:34:04 +01:00
sheaf c7cd6c2a1c WIP on monomial bases 2023-01-16 02:31:31 +01:00
sheaf ba07fce595 don't use avx512 in rounded-hw 2023-01-14 03:22:04 +01:00
sheaf 684550a795 implement intervallic brushes 2023-01-13 23:10:06 +01:00
sheaf 09c1bdd948 continue interval arithmetic integration 2023-01-13 15:23:33 +01:00
sheaf a4e9c1cf32 preparation for interval arithmetic 2023-01-13 06:32:34 +01:00
sheaf 33a3cbfaa1 find solutions on nearby curves 2023-01-11 20:05:56 +01:00
sheaf 094801ca67 Merge branch 'envelope' into 'master' 
Compute brush strokes using the envelope equation

See merge request sheaf/metabrush!4
 2023-01-11 14:27:45 +00:00
sheaf 8fc5e6c9b8 compute brush strokes using the envelope equation 2023-01-11 15:26:12 +01:00
sheaf 43098dec01 Newton-Raphson implementation 2023-01-11 15:25:52 +01:00
sheaf 671dae5474 use R2 instead of Point2D & Vector2D 2023-01-09 04:27:08 +01:00
sheaf 22820b328d more cabal file cleanups 2023-01-09 02:54:42 +01:00
sheaf cca4558985 put all colours into a separate CSS file 2023-01-08 21:12:00 +01:00
sheaf 5bd4e7f4cf framework for brush differentiation 2023-01-08 17:16:14 +01:00
sheaf 4e5c848883 kill off brush EDSL 2022-12-11 02:33:34 +01:00
sheaf e6565aeb00 add hie.yaml 2022-12-04 17:53:39 +01:00
sheaf 066a4e653f more GHC 9.4 build fixes 2022-12-04 17:25:44 +01:00
sheaf bcd38ed791 clean up build steps & instructions 2022-12-04 15:52:29 +01:00
sheaf c80fdac30a switch to using eigen instead of hmatrix 2022-06-17 16:21:52 +02:00
sheaf 4e15380c7e use diagrams to parse MetaFont paths 2022-02-13 17:30:54 +01:00
sheaf 64e45f126b Refactor module hierarchy, use internal records 2022-02-11 22:05:13 +01:00
sheaf 8333f69dc2 improvements to menubar theming 2022-02-10 00:07:44 +01:00
sheaf eba08a6edd add first-class functions to brush language 2021-05-25 13:45:21 +02:00
sheaf 5ff935b4b2 update render & select for new brush manipulation 2021-05-24 17:37:26 +02:00
sheaf 15d50f8d76 add signed curvature computation 2021-05-16 00:33:58 +02:00
sheaf 7431e8ba67 compute roots of envelope equation 2021-05-15 23:27:21 +02:00
sheaf df2469487d add cubic Bézier crunode computation 2021-05-15 21:24:58 +02:00
sheaf 9f16cff978 fix brush join orientations 2021-05-13 22:07:49 +02:00
sheaf 570a593f4f fix stupid error in quadratic solver 2021-05-12 15:16:26 +02:00
sheaf 2983943363 compute correct open stroke caps 2021-05-12 13:58:30 +02:00
sheaf c64a4140c4 fix orientation of brush joins 2021-05-10 23:51:05 +02:00
sheaf b46dc2a140 start reworking brush stroking 2021-05-10 18:02:42 +02:00
sheaf f8b0ec2ab1 adjust spline wither framework/selection deletion 2021-05-01 20:38:11 +02:00
sheaf a4bf83949a fix incorrect field name in stroke hierarchy deserialisation 2021-04-30 17:48:19 +02:00