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>
19 lines
265 B
JSON
19 lines
265 B
JSON
{
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"lloyd_iterations": 5,
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"s_min": 12.0,
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"s_max": 35.0,
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"t_min": 2.5,
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"t_0": 3.5,
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"gamma": 1.2,
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"w_frame": 8.0,
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"r_f": 1.5,
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"d_keep": 1.5,
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"eta_0": 0.1,
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"alpha": 0.8,
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"R_0": 40.0,
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"kappa": 1.5,
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"p": 2.0,
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"beta": 0.3,
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"R_edge": 15.0
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}
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