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OpenNest/OpenNest.Tests/Bending/TestData/4526 A14 PT23.dxf
AJ Isaacs 356b989424 feat: mirror axis simplifier, bend note propagation, ellipse fixes 
Geometry Simplifier:
- Replace least-squares circle fitting with mirror axis algorithm
  that constrains center to perpendicular bisector of chord, guaranteeing
  zero-gap endpoint connectivity by construction
- Golden section search optimizes center position along the axis
- Increase default tolerance from 0.005 to 0.5 for practical CNC use
- Support existing arcs in simplification runs (sample arc points to
  find larger replacement arcs spanning lines + arcs together)
- Add tolerance zone visualization (offset original geometry ±tolerance)
- Show original geometry overlay with orange dashed lines in preview
- Add "Original" checkbox to CadConverter for comparing old vs new
- Store OriginalEntities on FileListItem to prevent tolerance creep
  when re-running simplifier with different settings

Bend Detection:
- Propagate bend notes to collinear bend lines split by cutouts
  using infinite-line perpendicular distance check
- Add bend note text rendering in EntityView at bend line midpoints

DXF Import:
- Fix trimmed ellipse closing chord: only close when sweep ≈ 2π,
  preventing phantom lines through slot cutouts

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-26 20:27:46 -04:00

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EOF
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