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- """Regression at the exporter's pure triangle-reference seam; no bpy or scene startup."""
- import ast, math
- from pathlib import Path
- source = Path('tools/city-massing/assemble-cad-bim.py').read_text(encoding='utf8')
- functions = {'prism_triangles', 'facade_window_count', 'massing_triangles'}
- module = ast.Module(body=[n for n in ast.parse(source).body if isinstance(n, ast.FunctionDef) and n.name in functions], type_ignores=[])
- scope = {'math': math, 'ARCHITECTURE': True}
- exec(compile(module, 'triangle-reference-seam', 'exec'), scope)
- # A notch-sized edge must remain in the solid but cannot fit the 0.35m facade panel.
- ring = [(0,0),(.2,0),(.2,5),(0,5)]
- # 4*n-4 shell + 12 door + 2 long-wall windows * 2 triangles * 4 floors.
- assert scope['massing_triangles'](ring,4,'lod1') == 12+12+16
- scope['ARCHITECTURE'] = False
- # Original large rectangular case retains one window on every edge.
- assert scope['massing_triangles']([(0,0),(12,0),(12,9),(0,9)],3,'lod1') == 12+12+24
- print({'passed':True,'scope':'short surveyed edges counted only as shell; facade reference matches panel size guard','blenderStarted':False})
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