bherbruckandClaude Opus 5.5
08cf223ced
Vendored truck-stepio (writer only): an intersection curve's second surface was written at the first one's id (duplicate ids for every boolean edge), and revolved surfaces lost their orientation (the modeling-surface sense was always true; inverted or mirrored revolutions came out inside out). Export now writes intersection edges as C1 cubic B-splines through exact points, so files carry plain 3D curves and no redundant surfaces. Vendored truck-meshalgo: hinted parameter searches that run off a B-spline's domain are rejected or clamped (meshing their grid never finished). STEP import: straight revolution profiles are bounded in the meridian plane and stop at the axis; loops on revolutions start away from the axis; face extents include edge end points. Edges between pieces of one split surface draw as seams. kernel::step_validate checks a STEP file (duplicate ids, dangling references, dense numbering); the oracle replay now exports every rebuilt part, validates it and re-imports it with no warnings and the same volume (all 32 rebuildable cases pass). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01AS5Tn3xieewUSg3uxrMVdL
69 lines
1.6 KiB
Markdown
69 lines
1.6 KiB
Markdown
# truck-meshalgo
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[](https://crates.io/crates/truck-meshalgo) [](https://docs.rs/truck-meshalgo)
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Mesh algorigthms, include tessellations of the shape.
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## Sample Codes
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### filleted-cube
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An experiment to decompose a mesh into elements for future NURBS-shape approximation of the mesh.
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Contains `doc(hidden)` methods.
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- Input: filleted_cube.obj
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- Output: planes.obj, lower.obj, upper.obj
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### irregular-sphere
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Add the normal to the sphere containing
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the irregular normal generated from the NURBS containing the critical point.
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- Input: irregular_sphere.obj
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- Output: regular_sphere.obj
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### octahedron-subdivision
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Apply loop subdivision to regular octahedron.
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- Input: hardcoded octahedron
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- Output: octahedron.obj, subdivision-octahedron.obj
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### requadrangulate-buddha
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A benchmark that reads in heavy mesh data, applies triangulation and quadrangulation, and writes it out.
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- Input: happy-buddha.obj
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- Output: requadrangulated-buddha.obj
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### smoothing-bunny
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Adds smooth normals to the stanford bunny.
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- Input: bunny.obj
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- Output: smooth_bunny.obj
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### splitting-sample
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An experiment to decompose a mesh into elements for future NURBS-shape approximation of the mesh.
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- Input: sample.obj
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- Output: planes_parts_#.obj, others_parts_#.obj
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### teapot
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Adds smooth normals to and quadrangulate the famous teapot.
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- Input: teapot.obj
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- Output: quaded_pot.obj
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### tessellate-shape
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Tessellate a shape and output an obj file.
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```bash
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usage: tessellate-shape <input json file> <output json file>
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```
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The default `<output file>` is output.obj.
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