Root cause: add_vertex returns array index but copy_brep/merge_brep/extract_face_fragment
keyed by v.id (next_id_ value). When vertices and edges are interleaved,
v.id != array index → map lookup fails → OOB access.
Fixes in brep_boolean.cpp:
- copy_brep: key by vertex index (vi) instead of v.id
- merge_brep: key by vi, value = best_idx (array index) not result.vertex(id).id
- extract_face_fragment: use body.vertex(e.v_start) directly (e.v_start is array index)
- face_bounds/face_centroid/faces_intersect: same direct access pattern
Also fixed same pattern in brep_heal.cpp, brep_validate.cpp, step_export.cpp
茂之钳
8f77d04283