comparison: tests/concave.py
tests/concave.py
- changeset 20
- db2300032678
- parent 19
- 9169bad392c4
- child 21
- 8006fb8cdb77
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| 19:9169bad392c4 | 20:db2300032678 |
|---|---|
| 1 from math import acos, degrees, radians, pi as π | |
| 2 from testsuite import warning, error | |
| 3 from geometry import * | |
| 4 | |
| 5 def sign_consistency(container): | |
| 6 # Returns whether all elements in container have the same sign | |
| 7 return min(container) * max(container) >= 0 | |
| 8 | |
| 9 def concave_test(model): | |
| 10 for quadrilateral in model.quadrilaterals: | |
| 11 geometry = transform_to_xy(quadrilateral.geometry) | |
| 12 z_scores = [ | |
| 13 cross_product(v2 - v1, v3 - v1).z | |
| 14 for v1, v2, v3 in pairs(geometry.vertices, count = 3) | |
| 15 ] | |
| 16 if not sign_consistency(z_scores): | |
| 17 yield error(quadrilateral, 'concave-error') | |
| 18 | |
| 19 def skew_test(model): | |
| 20 ''' Test for non-coplanar quadrilaterals. ''' | |
| 21 for quadrilateral in model.quadrilaterals: | |
| 22 for triangles in split_quadrilateral(quadrilateral.geometry): | |
| 23 plane_1 = triangle_plane_normal(triangles[0]) | |
| 24 plane_2 = triangle_plane_normal(triangles[1]) | |
| 25 skew_angle = vector_angle(plane_1, plane_2, normalized = True) | |
| 26 if skew_angle > radians(0.1): | |
| 27 yield error(quadrilateral, 'skew-error', | |
| 28 skew_angle = skew_angle, | |
| 29 ) | |
| 30 break | |
| 31 | |
| 32 manifest = { | |
| 33 'tests': { | |
| 34 'skew': skew_test, | |
| 35 'concave': concave_test, | |
| 36 }, | |
| 37 'messages': { | |
| 38 'skew-error': lambda skew_angle: | |
| 39 str.format('skew quadrilateral (plane angle {}°)', | |
| 40 '%.2f' % degrees(skew_angle), | |
| 41 ), | |
| 42 'concave-error': 'concave quadrilateral', | |
| 43 }, | |
| 44 } |
