Coverage for tests/test_ConvexPolygon.py: 20%

75 statements  

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1# 

2# LSST Data Management System 

3# See COPYRIGHT file at the top of the source tree. 

4# 

5# This product includes software developed by the 

6# LSST Project (http://www.lsst.org/). 

7# 

8# This program is free software: you can redistribute it and/or modify 

9# it under the terms of the GNU General Public License as published by 

10# the Free Software Foundation, either version 3 of the License, or 

11# (at your option) any later version. 

12# 

13# This program is distributed in the hope that it will be useful, 

14# but WITHOUT ANY WARRANTY; without even the implied warranty of 

15# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 

16# GNU General Public License for more details. 

17# 

18# You should have received a copy of the LSST License Statement and 

19# the GNU General Public License along with this program. If not, 

20# see <https://www.lsstcorp.org/LegalNotices/>. 

21# 

22 

23import pickle 

24try: 

25 import yaml 

26except ImportError: 

27 yaml = None 

28 

29import unittest 

30 

31import numpy as np 

32 

33from lsst.sphgeom import CONTAINS, ConvexPolygon, Circle, Region, UnitVector3d 

34 

35 

36class ConvexPolygonTestCase(unittest.TestCase): 

37 

38 def testConstruction(self): 

39 points = [UnitVector3d.Z(), UnitVector3d.X(), UnitVector3d.Y()] 

40 p1 = ConvexPolygon(points) 

41 self.assertEqual(points, p1.getVertices()) 

42 p2 = p1.clone() 

43 self.assertEqual(p1, p2) 

44 p3 = ConvexPolygon([-UnitVector3d.Z(), 

45 UnitVector3d.X(), 

46 UnitVector3d.Y()]) 

47 self.assertNotEqual(p1, p3) 

48 p4 = ConvexPolygon.convexHull([UnitVector3d.Y(), 

49 UnitVector3d.X(), 

50 UnitVector3d(1, 1, 1), 

51 UnitVector3d.Z()]) 

52 self.assertEqual(p1, p4) 

53 

54 def testCodec(self): 

55 p = ConvexPolygon([UnitVector3d.Z(), 

56 UnitVector3d.X(), 

57 UnitVector3d.Y()]) 

58 s = p.encode() 

59 self.assertEqual(ConvexPolygon.decode(s), p) 

60 self.assertEqual(Region.decode(s), p) 

61 

62 def testRelationships(self): 

63 p = ConvexPolygon([UnitVector3d.Z(), 

64 UnitVector3d.X(), 

65 UnitVector3d.Y()]) 

66 self.assertTrue(p.contains(p.getCentroid())) 

67 boundingCircle = p.getBoundingCircle() 

68 self.assertEqual(boundingCircle.relate(p), CONTAINS) 

69 self.assertTrue(p.isWithin(boundingCircle)) 

70 self.assertTrue(p.intersects(boundingCircle)) 

71 self.assertFalse(p.isDisjointFrom(boundingCircle)) 

72 self.assertFalse(p.contains(boundingCircle)) 

73 tinyCircle = Circle(boundingCircle.getCenter()) 

74 self.assertFalse(p.isWithin(tinyCircle)) 

75 self.assertTrue(p.intersects(tinyCircle)) 

76 self.assertFalse(p.isDisjointFrom(tinyCircle)) 

77 self.assertTrue(p.contains(tinyCircle)) 

78 

79 def test_vectorized_contains(self): 

80 b = ConvexPolygon([UnitVector3d.Z(), UnitVector3d.X(), UnitVector3d.Y()]) 

81 x = np.random.rand(5, 3) 

82 y = np.random.rand(5, 3) 

83 z = np.random.rand(5, 3) 

84 c = b.contains(x, y, z) 

85 lon = np.arctan2(y, x) 

86 lat = np.arctan2(z, np.hypot(x, y)) 

87 c2 = b.contains(lon, lat) 

88 for i in range(x.shape[0]): 

89 for j in range(x.shape[1]): 

90 u = UnitVector3d(x[i, j], y[i, j], z[i, j]) 

91 self.assertEqual(c[i, j], b.contains(u)) 

92 self.assertEqual(c2[i, j], b.contains(u)) 

93 # test with non-contiguous memory 

94 c3 = b.contains(x[::2], y[::2], z[::2]) 

95 c4 = b.contains(lon[::2], lat[::2]) 

96 for i in range(x.shape[0], 2): 

97 for j in range(x.shape[1]): 

98 u = UnitVector3d(x[i, j], y[i, j], z[i, j]) 

99 self.assertEqual(c3[i//2, j], b.contains(u)) 

100 self.assertEqual(c4[i//2, j], b.contains(u)) 

101 

102 def testString(self): 

103 p = ConvexPolygon([UnitVector3d.Z(), 

104 UnitVector3d.X(), 

105 UnitVector3d.Y()]) 

106 self.assertEqual(str(p), repr(p)) 

107 self.assertEqual(repr(p), 

108 'ConvexPolygon([UnitVector3d(0.0, 0.0, 1.0), ' 

109 'UnitVector3d(1.0, 0.0, 0.0), ' 

110 'UnitVector3d(0.0, 1.0, 0.0)])') 

111 self.assertEqual( 

112 p, eval(repr(p), dict(ConvexPolygon=ConvexPolygon, 

113 UnitVector3d=UnitVector3d))) 

114 

115 def testPickle(self): 

116 a = ConvexPolygon([UnitVector3d.Z(), 

117 UnitVector3d.X(), 

118 UnitVector3d.Y()]) 

119 b = pickle.loads(pickle.dumps(a, pickle.HIGHEST_PROTOCOL)) 

120 self.assertEqual(a, b) 

121 

122 @unittest.skipIf(not yaml, "YAML module can not be imported") 

123 def testYaml(self): 

124 a = ConvexPolygon([UnitVector3d.Z(), 

125 UnitVector3d.X(), 

126 UnitVector3d.Y()]) 

127 b = yaml.safe_load(yaml.dump(a)) 

128 self.assertEqual(a, b) 

129 

130 

131if __name__ == '__main__': 131 ↛ 132line 131 didn't jump to line 132, because the condition on line 131 was never true

132 unittest.main()