comparison: tests/quadrilaterals.py
tests/quadrilaterals.py
- changeset 26
- 7c263b864371
- parent 22
- 9bb00170780b
- child 27
- 3089611c99d1
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| 25:8990ac138cc2 | 26:7c263b864371 |
|---|---|
| 5 def sign_consistency(container): | 5 def sign_consistency(container): |
| 6 # Returns whether all elements in container have the same sign | 6 # Returns whether all elements in container have the same sign |
| 7 return min(container) * max(container) >= 0 | 7 return min(container) * max(container) >= 0 |
| 8 | 8 |
| 9 def concave_test(model): | 9 def concave_test(model): |
| 10 ''' Checks that all quadrilaterals are convex. ''' | |
| 10 for quadrilateral in model.quadrilaterals: | 11 for quadrilateral in model.quadrilaterals: |
| 11 geometry = transform_to_xy(quadrilateral.geometry) | 12 geometry = transform_to_xy(quadrilateral.geometry) |
| 12 z_scores = [ | 13 z_scores = [ |
| 13 cross_product(v2 - v1, v3 - v1).z | 14 cross_product(v2 - v1, v3 - v1).z |
| 14 for v1, v2, v3 in pairs(geometry.vertices, count = 3) | 15 for v1, v2, v3 in pairs(geometry.vertices, count = 3) |
| 15 ] | 16 ] |
| 16 if not sign_consistency(z_scores): | 17 if not sign_consistency(z_scores): |
| 17 yield error(quadrilateral, 'concave-error') | 18 yield error(quadrilateral, 'concave-error') |
| 18 | 19 |
| 19 def skew_test(model): | 20 def skew_test(model): |
| 20 ''' Test for non-coplanar quadrilaterals. ''' | 21 ''' Checks that all quadrilaterals are coplanar. ''' |
| 21 for quadrilateral in model.quadrilaterals: | 22 for quadrilateral in model.quadrilaterals: |
| 22 for triangles in split_quadrilateral(quadrilateral.geometry): | 23 for triangles in split_quadrilateral(quadrilateral.geometry): |
| 23 plane_1 = triangle_plane_normal(triangles[0]) | 24 plane_1 = triangle_plane_normal(triangles[0]) |
| 24 plane_2 = triangle_plane_normal(triangles[1]) | 25 plane_2 = triangle_plane_normal(triangles[1]) |
| 25 skew_angle = vector_angle(plane_1, plane_2, normalized = True) | 26 skew_angle = vector_angle(plane_1, plane_2, normalized = True) |
