AJ Isaacs d0d334e734 fix: use chain tolerance for shape building to handle DXF endpoint gaps ...

DXF files can have endpoint gaps at entity junctions that fall right at
the floating-point boundary of Tolerance.Epsilon (0.00001). This caused
shapes to not close, resulting in 0 area and 0% utilization in Best-Fit.

Added ChainTolerance (0.0001) for endpoint chaining in GetConnected and
Shape.IsClosed, keeping the tighter Epsilon for geometric precision.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

2026-03-12 08:37:39 -04:00

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