Coverage for tests/test_Box3d.py: 13%

105 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 

24import unittest 

25 

26import numpy as np 

27from lsst.sphgeom import CONTAINS, DISJOINT, Box3d, Interval1d, Vector3d 

28 

29 

30class Box3dTestCase(unittest.TestCase): 

31 """Test Box3d.""" 

32 

33 def setUp(self): 

34 np.random.seed(1) 

35 

36 def test_construction(self): 

37 a = Box3d(Vector3d(0, 0, 0)) 

38 b = Box3d(a) 

39 self.assertEqual(a, b) 

40 self.assertNotEqual(id(a), id(b)) 

41 a = Box3d(Vector3d(1, 2, 3), Vector3d(3, 4, 5)) 

42 b = Box3d(Interval1d(1, 3), Interval1d(2, 4), Interval1d(3, 5)) 

43 c = Box3d(Vector3d(2, 3, 4), 1, 1, 1) 

44 self.assertEqual(a, b) 

45 self.assertEqual(b, c) 

46 i = Interval1d(1, 2) 

47 self.assertEqual(i, Interval1d(1, 2)) 

48 self.assertTrue(Interval1d.empty().isEmpty()) 

49 

50 def test_comparison_operators(self): 

51 self.assertEqual(Box3d(Vector3d(1, 1, 1)), Vector3d(1, 1, 1)) 

52 self.assertEqual(Box3d(Vector3d(1, 1, 1)), Box3d(Vector3d(1, 1, 1), Vector3d(1, 1, 1))) 

53 self.assertEqual(Box3d(Vector3d(0, 0, 0), 1, 1, 1), Box3d(Vector3d(-1, -1, -1), Vector3d(1, 1, 1))) 

54 self.assertNotEqual(Box3d(Vector3d(0, 0, 0), 1, 1, 1), Box3d(Vector3d(-1, -1, -1), Vector3d(1, 1, 2))) 

55 self.assertNotEqual(Box3d(Vector3d(0, 0, 0), 1, 1, 1), Vector3d(1, 1, 1)) 

56 

57 def test_center_and_dimensions(self): 

58 b = Box3d(Vector3d(1.5, 1.5, 1.5), 0.5, 1.0, 1.5) 

59 self.assertEqual(b[0], b[-3]) 

60 self.assertEqual(b[1], b[-2]) 

61 self.assertEqual(b[2], b[-1]) 

62 self.assertEqual(b[0], b.x()) 

63 self.assertEqual(b[1], b.y()) 

64 self.assertEqual(b[2], b.z()) 

65 with self.assertRaises(IndexError): 

66 b[-4] 

67 with self.assertRaises(IndexError): 

68 b[3] 

69 self.assertEqual(b.x(), Interval1d(1, 2)) 

70 self.assertEqual(b.y(), Interval1d(0.5, 2.5)) 

71 self.assertEqual(b.z(), Interval1d(0, 3)) 

72 self.assertEqual(b.getCenter(), Vector3d(1.5, 1.5, 1.5)) 

73 self.assertEqual(b.getWidth(), 1) 

74 self.assertEqual(b.getHeight(), 2) 

75 self.assertEqual(b.getDepth(), 3) 

76 self.assertEqual(b.isEmpty(), False) 

77 self.assertEqual(b.isFull(), False) 

78 

79 def test_relationships(self): 

80 b02 = Box3d(Interval1d(0, 2), Interval1d(0, 2), Interval1d(0, 2)) 

81 b13 = Box3d(Interval1d(1, 3), Interval1d(1, 3), Interval1d(1, 3)) 

82 b46 = Box3d(Interval1d(4, 6), Interval1d(4, 6), Interval1d(4, 6)) 

83 b06 = Box3d(Interval1d(0, 6), Interval1d(0, 6), Interval1d(0, 6)) 

84 self.assertTrue(b02.contains(Vector3d(1, 1, 1))) 

85 self.assertTrue(b02.contains(Box3d(Vector3d(1, 1, 1), 0.5, 0.5, 0.5))) 

86 self.assertTrue(b02.isDisjointFrom(Vector3d(3, 3, 3))) 

87 self.assertTrue(b02.isDisjointFrom(b46)) 

88 self.assertTrue(b02.intersects(Vector3d(1, 1, 1))) 

89 self.assertTrue(b02.intersects(b13)) 

90 self.assertTrue(Box3d(Vector3d(1, 1, 1), 0, 0, 0).isWithin(b02)) 

91 self.assertTrue(b02.isWithin(b06)) 

92 r = b02.relate(Vector3d(1, 1, 1)) 

93 self.assertEqual(r, CONTAINS) 

94 r = b46.relate(b02) 

95 self.assertEqual(r, DISJOINT) 

96 

97 def test_vectorized_contains(self): 

98 b = Box3d.aroundUnitSphere() 

99 x = np.random.rand(5, 3) 

100 y = np.random.rand(5, 3) 

101 z = np.random.rand(5, 3) 

102 c = b.contains(x, y, z) 

103 for i in range(x.shape[0]): 

104 for j in range(x.shape[1]): 

105 u = Vector3d(x[i, j], y[i, j], z[i, j]) 

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

107 # test with non-contiguous memory 

108 c2 = b.contains(x[::2], y[::2], z[::2]) 

109 for i in range(x.shape[0], 2): 

110 for j in range(x.shape[1]): 

111 u = Vector3d(x[i, j], y[i, j], z[i, j]) 

112 self.assertEqual(c2[i // 2, j], b.contains(u)) 

113 

114 def test_expanding_and_clipping(self): 

115 a = Box3d(Vector3d(1, 1, 1), Vector3d(2, 2, 2)) 

116 b = ( 

117 a.expandedTo(Vector3d(3, 3, 3)) 

118 .expandedTo(Box3d(Vector3d(3, 3, 3), 1, 1, 1)) 

119 .clippedTo(Box3d(Vector3d(1, 1, 1), 1, 1, 1)) 

120 .clippedTo(Vector3d(1, 1, 1)) 

121 ) 

122 a.expandTo(Vector3d(3, 3, 3)) 

123 a.expandTo(Box3d(Vector3d(3, 3, 3), 1, 1, 1)) 

124 a.clipTo(Box3d(Vector3d(1, 1, 1), 1, 1, 1)) 

125 a.clipTo(Vector3d(1, 1, 1)) 

126 self.assertEqual(a, b) 

127 self.assertEqual(a, Vector3d(1, 1, 1)) 

128 a.clipTo(Vector3d(0, 0, 0)) 

129 self.assertTrue(a.isEmpty()) 

130 

131 def test_dilation_and_erosion(self): 

132 a = Box3d(Vector3d(0, 0, 0), 1, 1, 1) 

133 b = a.dilatedBy(1).erodedBy(2) 

134 a.dilateBy(1).erodeBy(2) 

135 self.assertEqual(a, b) 

136 self.assertEqual(a, Vector3d(0, 0, 0)) 

137 

138 def test_string(self): 

139 b = Box3d(Vector3d(0, 0, 0), 1, 1, 1) 

140 self.assertEqual(str(b), "[[-1.0, 1.0],\n [-1.0, 1.0],\n [-1.0, 1.0]]") 

141 self.assertEqual( 

142 repr(b), 

143 "Box3d(Interval1d(-1.0, 1.0),\n Interval1d(-1.0, 1.0),\n Interval1d(-1.0, 1.0))", 

144 ) 

145 self.assertEqual(b, eval(repr(b), {"Box3d": Box3d, "Interval1d": Interval1d})) 

146 

147 def test_pickle(self): 

148 a = Box3d(Vector3d(0, 0, 0), 1, 1, 1) 

149 b = pickle.loads(pickle.dumps(a)) 

150 self.assertEqual(a, b) 

151 

152 

153if __name__ == "__main__": 

154 unittest.main()