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 yaml 

25 

26import math 

27import unittest 

28 

29from lsst.sphgeom import (Angle, CONTAINS, Circle, Ellipse, Region, 

30 UnitVector3d, WITHIN) 

31 

32 

33class EllipseTestCase(unittest.TestCase): 

34 

35 def test_construction(self): 

36 self.assertTrue(Ellipse.empty().isEmpty()) 

37 self.assertTrue(Ellipse().isEmpty()) 

38 self.assertTrue(Ellipse.full().isFull()) 

39 e = Ellipse(Circle(UnitVector3d.X(), Angle(math.pi / 2))) 

40 f = Ellipse(UnitVector3d.X(), Angle(math.pi / 2)) 

41 self.assertEqual(e, f) 

42 self.assertEqual(e.getAlpha(), e.getBeta()) 

43 self.assertTrue(e.isCircle()) 

44 self.assertTrue(e.isGreatCircle()) 

45 g = Ellipse(e) 

46 h = e.clone() 

47 self.assertEqual(e, g) 

48 self.assertEqual(g, h) 

49 self.assertNotEqual(id(e), id(g)) 

50 self.assertNotEqual(id(g), id(h)) 

51 

52 def test_comparison_operators(self): 

53 e = Ellipse(UnitVector3d.X(), UnitVector3d.Y(), Angle(2 * math.pi / 3)) 

54 f = Ellipse(UnitVector3d.X(), 

55 Angle(math.pi / 3), Angle(math.pi / 6), Angle(0)) 

56 self.assertEqual(e, e) 

57 self.assertNotEqual(e, f) 

58 

59 def test_center_and_dimensions(self): 

60 e = Ellipse(UnitVector3d.X(), UnitVector3d.Y(), Angle(2 * math.pi / 3)) 

61 self.assertAlmostEqual(e.getF1().dot(UnitVector3d.X()), 1.0) 

62 self.assertAlmostEqual(e.getF2().dot(UnitVector3d.Y()), 1.0) 

63 self.assertAlmostEqual(e.getAlpha(), Angle(2 * math.pi / 3)) 

64 f = Ellipse(UnitVector3d.X(), 

65 Angle(math.pi / 3), Angle(math.pi / 6), Angle(0)) 

66 self.assertEqual(f.getCenter(), UnitVector3d.X()) 

67 

68 def test_relationships(self): 

69 e = Ellipse(UnitVector3d.X(), 

70 Angle(math.pi / 3), Angle(math.pi / 6), Angle(0)) 

71 self.assertTrue(e.contains(UnitVector3d.X())) 

72 self.assertTrue(UnitVector3d.X() in e) 

73 c = Circle(UnitVector3d.X(), Angle(math.pi / 2)) 

74 self.assertEqual(c.relate(e), CONTAINS) 

75 self.assertEqual(e.relate(c), WITHIN) 

76 

77 def test_complement(self): 

78 e = Ellipse(UnitVector3d.X(), 

79 Angle(math.pi / 3), Angle(math.pi / 6), Angle(0)) 

80 f = e.complemented().complement() 

81 self.assertEqual(e, f) 

82 

83 def test_codec(self): 

84 e = Ellipse(UnitVector3d.X(), UnitVector3d.Y(), Angle(2 * math.pi / 3)) 

85 s = e.encode() 

86 self.assertEqual(Ellipse.decode(s), e) 

87 self.assertEqual(Region.decode(s), e) 

88 

89 def test_string(self): 

90 c = Ellipse(UnitVector3d.Z(), Angle(1.0)) 

91 self.assertEqual(str(c), 

92 'Ellipse([0.0, 0.0, 1.0], [0.0, 0.0, 1.0], 1.0)') 

93 self.assertEqual(repr(c), 

94 'Ellipse(UnitVector3d(0.0, 0.0, 1.0), ' 

95 'UnitVector3d(0.0, 0.0, 1.0), Angle(1.0))') 

96 self.assertEqual(c, eval(repr(c), dict( 

97 Angle=Angle, Ellipse=Ellipse, UnitVector3d=UnitVector3d))) 

98 

99 def test_pickle(self): 

100 a = Ellipse(UnitVector3d.X(), UnitVector3d.Y(), Angle(2 * math.pi / 3)) 

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

102 self.assertEqual(a, b) 

103 

104 def test_yaml(self): 

105 a = Ellipse(UnitVector3d.X(), UnitVector3d.Y(), Angle(2 * math.pi / 3)) 

106 b = yaml.safe_load(yaml.dump(a)) 

107 self.assertEqual(a, b) 

108 

109 

110if __name__ == '__main__': 110 ↛ 111line 110 didn't jump to line 111, because the condition on line 110 was never true

111 unittest.main()