fix(splitter): preserve disconnected strips and trim cuts around cutouts

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Splits that cross an interior cutout previously merged physically
disconnected strips into one drawing and drew cut lines through the hole.
The region boundary now spans full feature-edge extents (trimmed against
cutout polygons) and line entities are Liang-Barsky clipped, so multi-split
edges work. Arcs are properly clipped at region boundaries via iterative
split-at-intersection so circles that straddle a split contribute to both
sides. AssemblePieces groups a region's entities into connected closed
loops and nests holes by bbox-pre-check + vertex-in-polygon containment,
so one region can emit multiple drawings when a cutout fully spans it.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

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This commit is contained in:

AJ Isaacs

2026-04-10 22:46:47 -04:00

parent 0e45c13515

commit 6880dee489

4 changed files with 3054 additions and 188 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

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OpenNest.Tests/Splitting/TestData/split_test.dxf Normal file

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