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feat(rectangles): add rectangle-lane maximal-rectangles engine

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Nests every part as the axis-aligned box of its material at its minimum-area
rotation and packs boxes with a maximal-rectangles free list (6 placement rules x
global/ordered pick). Sheet choice uses the salvage-credited look-ahead cost.

Curved extremes read the way the layout check sees them (circumscribed arcs on
the Clipper grid), so discs, rings and obrounds stay valid at box contact; an
80-job sweep failed 16-50 jobs before that rule.

Local 2026 production lanes (--min-salvage-dimension 12, --parallel 3):
- 91 all-rectangular jobs: 91/91 valid, cost 333081 vs best general 332153
  (Gpt6Astra, 89/91 valid), 5.9 s vs 13.7 s (Opus55) and 169.5 s (Gpt6Astra)
- 77 box-filling (>= 90%) jobs: 77/77 valid, lowest total cost 641637
This commit is contained in:
aj
2026-09-29 20:49:00 -04:00
parent 33cc2ee810
commit 13478f5102
10 changed files with 900 additions and 0 deletions
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OpenNest.Engine.Rectangles/OpenNest.Engine.Rectangles.csproj
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<Project Sdk="Microsoft.NET.Sdk">
<!-- Shared settings and the OpenNest.Engine reference come from Directory.Build.props. -->
<ItemGroup>
<InternalsVisibleTo Include="OpenNest.Engine.Rectangles.Tests" />
</ItemGroup>
</Project>