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engine: geometry.stitch, imported surfaces stitched for meshing (#507)

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geometry.stitch {name, surface, tolerance} records a stitch; the
surfaces keep what was read (TaggedSurface::original) and are stitched
again from it whenever a surface is imported, the model opened, or a
stitch added or deleted (geometry.stitch.delete). Opening a model also
warns about merges that no longer apply.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UhhZMBTviDQxZvwnyP89fo
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jyvikoandClaude Opus 5.5 authored and Irakli Kourtis committed 2026-10-16 12:07:16 -04:00
1 parent 12b3128f53
commit 4e6fd59409
15 files changed
+259 -8
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crates/engine/src/cmd/mesh.rs
+2 -2
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@@ -1075,7 +1075,7 @@ mod tests {
SurfaceMesh { positions: p.clone(), triangles: t.clone(), tri_face: vec![0, 1, 1, 1], weld_distance: 0.0, ..SurfaceMesh::default() };
let open = SurfaceMesh { positions: p, triangles: t[..3].to_vec(), tri_face: vec![0, 1, 1], weld_distance: 0.0, ..SurfaceMesh::default() };
for mesh in [tet, open] {
s.surfaces.push(Arc::new(TaggedSurface { name: "Tet".into(), mesh, faces: 2 }));
s.surfaces.push(Arc::new(TaggedSurface { name: "Tet".into(), mesh, faces: 2, original: None }));
}
let r = s.execute("mesh.surface.check", &json!({"surface": 0, "feature_angle": 180})).unwrap();
assert_eq!((r["valid"].clone(), r["feature_edges"].clone()), (json!(true), json!({"face_boundary": 3, "sharp": 0})));
@@ -1308,7 +1308,7 @@ mod tests {
let open = SurfaceMesh { positions: p, triangles: t[..3].to_vec(), tri_face: vec![0, 1, 1], weld_distance: 0.0, ..SurfaceMesh::default() };
let mut s = Session::default();
for mesh in [tet, open] {
s.surfaces.push(Arc::new(TaggedSurface { name: "Tet".into(), mesh, faces: 2 }));
s.surfaces.push(Arc::new(TaggedSurface { name: "Tet".into(), mesh, faces: 2, original: None }));
}
let r = s.execute("mesh.tet.generate", &json!({"surface": 0, "quality": false})).unwrap();
assert_eq!((r["elements"].clone(), r["nodes"].clone(), r["boundary_faces"].clone()), (json!(1), json!(4), json!(4)));