bherbruckandClaude Opus 5.5
1c10d1e56a
Meshing (vendored truck-meshalgo) works within a budget so hostile files cannot hang: bounded edge and surface divisions (point caps, depth and round limits, NaN-safe), and a grid budget per face shared out per shell. Surface grids refine only the direction that bends; rulings left undivided get cells comparable to the other direction, so trimmed cylinders (holes, tee joints) no longer lose volume to long triangles. The helical sweep imports in 12 s instead of 7 minutes. Small sphere patches get poles away from them even when the file runs a seam through the patch (a pyramid's corner blend). Faces the mesher cannot mesh are reported as import warnings. Test: wild B-spline and far-off boundaries import in bounded time. STEP corpus 65/66 (50-sweep-tight-bend: a horn-torus bend whose inner side collapses to a point; Fusion's own area for it is also off). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01AS5Tn3xieewUSg3uxrMVdL
truck-meshalgo
Mesh algorigthms, include tessellations of the shape.
Sample Codes
filleted-cube
An experiment to decompose a mesh into elements for future NURBS-shape approximation of the mesh.
Contains doc(hidden) methods.
- Input: filleted_cube.obj
- Output: planes.obj, lower.obj, upper.obj
irregular-sphere
Add the normal to the sphere containing the irregular normal generated from the NURBS containing the critical point.
- Input: irregular_sphere.obj
- Output: regular_sphere.obj
octahedron-subdivision
Apply loop subdivision to regular octahedron.
- Input: hardcoded octahedron
- Output: octahedron.obj, subdivision-octahedron.obj
requadrangulate-buddha
A benchmark that reads in heavy mesh data, applies triangulation and quadrangulation, and writes it out.
- Input: happy-buddha.obj
- Output: requadrangulated-buddha.obj
smoothing-bunny
Adds smooth normals to the stanford bunny.
- Input: bunny.obj
- Output: smooth_bunny.obj
splitting-sample
An experiment to decompose a mesh into elements for future NURBS-shape approximation of the mesh.
- Input: sample.obj
- Output: planes_parts_#.obj, others_parts_#.obj
teapot
Adds smooth normals to and quadrangulate the famous teapot.
- Input: teapot.obj
- Output: quaded_pot.obj
tessellate-shape
Tessellate a shape and output an obj file.
usage: tessellate-shape <input json file> <output json file>
The default <output file> is output.obj.