comparison: tests/quadrilaterals.py
tests/quadrilaterals.py
- changeset 103
- 662de6b8cfc2
- parent 90
- 6ae063fd27dc
- child 106
- d93ef722bba6
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replaced
| 102:952e2a9a669b | 103:662de6b8cfc2 |
|---|---|
| 23 yield report_problem('concave', bad_object = quadrilateral) | 23 yield report_problem('concave', bad_object = quadrilateral) |
| 24 | 24 |
| 25 @problem_type('skew-major', | 25 @problem_type('skew-major', |
| 26 severity = 'hold', | 26 severity = 'hold', |
| 27 message = lambda skew_angle: | 27 message = lambda skew_angle: |
| 28 str.format('skew quadrilateral (plane angle {})', | 28 str.format('skew (non-coplanar) quadrilateral (plane angle {})', |
| 29 degree_rep(skew_angle), | 29 degree_rep(skew_angle), |
| 30 ), | 30 ), |
| 31 ) | 31 ) |
| 32 @problem_type('skew-minor', | 32 @problem_type('skew-minor', |
| 33 severity = 'warning', | 33 severity = 'warning', |
| 34 message = lambda skew_angle: | 34 message = lambda skew_angle: |
| 35 str.format('slightly skew quadrilateral (plane angle {})', | 35 str.format('slightly skew (non-coplanar) quadrilateral (plane angle {})', |
| 36 degree_rep(skew_angle), | 36 degree_rep(skew_angle), |
| 37 ), | 37 ), |
| 38 ) | 38 ) |
| 39 def skew_test(model): | 39 def skew_test(model): |
| 40 ''' Checks that all quadrilaterals are coplanar. ''' | 40 ''' Checks that all quadrilaterals are coplanar. ''' |
| 75 'self-intersecting', | 75 'self-intersecting', |
| 76 bad_object = quadrilateral, | 76 bad_object = quadrilateral, |
| 77 ) | 77 ) |
| 78 break | 78 break |
| 79 | 79 |
| 80 @problem_type('collinear', severity = 'hold', message = 'collinear polygon') | 80 @problem_type('collinear', |
| 81 severity = 'hold', | |
| 82 message = lambda min_angle, max_angle: str.format( | |
| 83 'collinear polygon (smallest interior angle {min_angle}, largest {max_angle})', | |
| 84 min_angle = degree_rep(min_angle), | |
| 85 max_angle = degree_rep(max_angle), | |
| 86 ), | |
| 87 ) | |
| 81 def collinear_test(model): | 88 def collinear_test(model): |
| 89 from math import radians, cos, acos | |
| 90 # according to the LDraw spec, all interior angles must be | |
| 91 # between 0.025 degrees and 179.9 degrees. Note that between 0 and pi, | |
| 92 # cos(x) is a downwards curve, so the minimum cosine is for the maximum | |
| 93 # angle. | |
| 94 min_cosine = cos(radians(179.9)) | |
| 95 max_cosine = cos(radians(0.025)) | |
| 82 for element in model.body: | 96 for element in model.body: |
| 83 if hasattr(element, 'geometry') and len(element.geometry.vertices) >= 3: | 97 if hasattr(element, 'geometry') and len(element.geometry.vertices) >= 3: |
| 84 for a, b, c in pairs(element.geometry.vertices, count = 3): | 98 cosines = list(element.geometry.angle_cosines()) |
| 85 if cross_product(b - a, c - a).length() < 1e-5: | 99 if any( |
| 86 yield report_problem('collinear', bad_object = element) | 100 not(min_cosine < cosine < max_cosine) |
| 87 break | 101 for cosine in cosines |
| 88 | 102 ): |
| 89 @problem_type('hairline-polygon', | |
| 90 severity = 'warning', | |
| 91 message = lambda smallest_angle: str.format( | |
| 92 'hairline polygon (smallest angle {})', | |
| 93 degree_rep(smallest_angle), | |
| 94 ), | |
| 95 ) | |
| 96 def hairline_test(model): | |
| 97 for element in model.body: | |
| 98 if hasattr(element, 'geometry') and len(element.geometry.vertices) >= 3: | |
| 99 smallest_angle = element.geometry.smallest_angle | |
| 100 if smallest_angle < radians(0.5): | |
| 101 yield report_problem( | 103 yield report_problem( |
| 102 'hairline-polygon', | 104 'collinear', |
| 103 bad_object = element, | 105 bad_object = element, |
| 104 smallest_angle = smallest_angle, | 106 min_angle = min(map(acos, cosines)), |
| 107 max_angle = max(map(acos, cosines)), | |
| 105 ) | 108 ) |
| 106 | 109 |
| 107 manifest = { | 110 manifest = { |
| 108 'tests': [ | 111 'tests': [ |
| 109 skew_test, | 112 skew_test, |
| 110 concave_test, | 113 concave_test, |
| 111 bowtie_test, | 114 bowtie_test, |
| 112 collinear_test, | 115 collinear_test, |
| 113 hairline_test, | |
| 114 ], | 116 ], |
| 115 } | 117 } |
