Anto01
5c63d877f0
Replaces Triangle library with Gmsh as the default triangulation engine for adaptive isogrid generation. Gmsh's Frontal-Delaunay algorithm provides: - Better adaptive density response (concentric rings around holes) - Superior triangle quality (min angles 30-35° vs 25-30°) - Single-pass meshing with background size fields (vs iterative refinement) - More equilateral triangles → uniform rib widths, better manufacturability - Natural boundary conformance → cleaner frame edges Comparison results (mixed hole weights plate): - Min angle improvement: +5.1° (25.7° → 30.8°) - Density field accuracy: Excellent vs Poor - Visual quality: Concentric hole refinement vs random patterns Changes: - Updated src/brain/__main__.py to import triangulation_gmsh - Added gmsh>=4.11 to requirements.txt (Triangle kept as fallback) - Updated README and technical-spec.md - Added comparison script and test results Triangle library remains available as fallback option. Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
18 lines
419 B
JSON
18 lines
419 B
JSON
{
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"triangle": {
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"num_triangles": 256,
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"num_vertices": 179,
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"min_angle": 25.7157296607434,
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"mean_angle": 60.0,
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"max_angle": 115.06525559964912
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},
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"gmsh": {
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"num_triangles": 958,
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"num_vertices": 567,
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"min_angle": 30.84787961444748,
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"mean_angle": 60.0,
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"max_angle": 107.9550818814141
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},
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"efficiency_gain_percent": -274.21875,
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"min_angle_improvement": 5.132149953704079
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} |