stroblme 0ce43a94aa 10C Inc 2: feature tail ...

119 of the app's 138 symbols now resolve; only the I/O modules and the Inc 4
tail are left. New: GCE2d, GCPnts, BRepFilletAPI, BRepOffsetAPI,
ShapeAnalysis, ShapeFix, ShapeUpgrade, BRepCheck, BRepTools, BRepLib,
BRepExtrema, BRepClass3d, IntCurvesFace, plus TopTools_HSequenceOfShape.

The fillet and chamfer builders derive BRepBuilderAPI_MakeShape, so their
history comes from the base bound in Inc 1 — which is what lets the app read a
blend's provenance the same way it reads a boolean's. The Inc 2 gate compares
that history exactly, alongside the splitter's, which is what sketch-region
attribution depends on.

Two shapes of deviation, both commented where they are bound:

- Trailing enum arguments are left off four constructors (fillet's
  ChFi3d_FilletShape, MakeThickSolidByJoin's mode/join pair, BRepExtrema's
  Extrema flags, and Inc 1's GeomAPI_ProjectPointOnSurf). An unregistered enum
  cannot serve as a default argument — nanobind converts defaults at binding
  time, so it fails the whole module's import with std::bad_cast. The app never
  overrides any of them, so OCCT's own defaults apply and behaviour is
  unchanged.
- ShapeAnalysis_FreeBounds.ConnectEdgesToWires reassigns a Handle& out
  parameter, which the caster cannot honour because it hands C++ a copy of the
  handle. The lambda splices the result into the sequence the caller passed, so
  the pass-empty-then-read shape the app uses still works. This is the one
  place upstream's holder semantics and ours differ observably.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DfriM8XUkn7uYf5Dwe2xo6

2026-08-10 20:09:29 +02:00

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