Coverage for tests/test_ConvexPolygon.py: 22%
75 statements
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« prev ^ index » next coverage.py v6.4.2, created at 2022-07-19 11:56 +0000
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#
23import pickle
25try:
26 import yaml
27except ImportError:
28 yaml = None
30import unittest
32import numpy as np
33from lsst.sphgeom import CONTAINS, Circle, ConvexPolygon, Region, UnitVector3d
36class ConvexPolygonTestCase(unittest.TestCase):
37 def testConstruction(self):
38 points = [UnitVector3d.Z(), UnitVector3d.X(), UnitVector3d.Y()]
39 p1 = ConvexPolygon(points)
40 self.assertEqual(points, p1.getVertices())
41 p2 = p1.clone()
42 self.assertEqual(p1, p2)
43 p3 = ConvexPolygon([-UnitVector3d.Z(), UnitVector3d.X(), UnitVector3d.Y()])
44 self.assertNotEqual(p1, p3)
45 p4 = ConvexPolygon.convexHull(
46 [UnitVector3d.Y(), UnitVector3d.X(), UnitVector3d(1, 1, 1), UnitVector3d.Z()]
47 )
48 self.assertEqual(p1, p4)
50 def testCodec(self):
51 p = ConvexPolygon([UnitVector3d.Z(), UnitVector3d.X(), UnitVector3d.Y()])
52 s = p.encode()
53 self.assertEqual(ConvexPolygon.decode(s), p)
54 self.assertEqual(Region.decode(s), p)
56 def testRelationships(self):
57 p = ConvexPolygon([UnitVector3d.Z(), UnitVector3d.X(), UnitVector3d.Y()])
58 self.assertTrue(p.contains(p.getCentroid()))
59 boundingCircle = p.getBoundingCircle()
60 self.assertEqual(boundingCircle.relate(p), CONTAINS)
61 self.assertTrue(p.isWithin(boundingCircle))
62 self.assertTrue(p.intersects(boundingCircle))
63 self.assertFalse(p.isDisjointFrom(boundingCircle))
64 self.assertFalse(p.contains(boundingCircle))
65 tinyCircle = Circle(boundingCircle.getCenter())
66 self.assertFalse(p.isWithin(tinyCircle))
67 self.assertTrue(p.intersects(tinyCircle))
68 self.assertFalse(p.isDisjointFrom(tinyCircle))
69 self.assertTrue(p.contains(tinyCircle))
71 def test_vectorized_contains(self):
72 b = ConvexPolygon([UnitVector3d.Z(), UnitVector3d.X(), UnitVector3d.Y()])
73 x = np.random.rand(5, 3)
74 y = np.random.rand(5, 3)
75 z = np.random.rand(5, 3)
76 c = b.contains(x, y, z)
77 lon = np.arctan2(y, x)
78 lat = np.arctan2(z, np.hypot(x, y))
79 c2 = b.contains(lon, lat)
80 for i in range(x.shape[0]):
81 for j in range(x.shape[1]):
82 u = UnitVector3d(x[i, j], y[i, j], z[i, j])
83 self.assertEqual(c[i, j], b.contains(u))
84 self.assertEqual(c2[i, j], b.contains(u))
85 # test with non-contiguous memory
86 c3 = b.contains(x[::2], y[::2], z[::2])
87 c4 = b.contains(lon[::2], lat[::2])
88 for i in range(x.shape[0], 2):
89 for j in range(x.shape[1]):
90 u = UnitVector3d(x[i, j], y[i, j], z[i, j])
91 self.assertEqual(c3[i // 2, j], b.contains(u))
92 self.assertEqual(c4[i // 2, j], b.contains(u))
94 def testString(self):
95 p = ConvexPolygon([UnitVector3d.Z(), UnitVector3d.X(), UnitVector3d.Y()])
96 self.assertEqual(str(p), repr(p))
97 self.assertEqual(
98 repr(p),
99 "ConvexPolygon([UnitVector3d(0.0, 0.0, 1.0), "
100 "UnitVector3d(1.0, 0.0, 0.0), "
101 "UnitVector3d(0.0, 1.0, 0.0)])",
102 )
103 self.assertEqual(p, eval(repr(p), dict(ConvexPolygon=ConvexPolygon, UnitVector3d=UnitVector3d)))
105 def testPickle(self):
106 a = ConvexPolygon([UnitVector3d.Z(), UnitVector3d.X(), UnitVector3d.Y()])
107 b = pickle.loads(pickle.dumps(a, pickle.HIGHEST_PROTOCOL))
108 self.assertEqual(a, b)
110 @unittest.skipIf(not yaml, "YAML module can not be imported")
111 def testYaml(self):
112 a = ConvexPolygon([UnitVector3d.Z(), UnitVector3d.X(), UnitVector3d.Y()])
113 b = yaml.safe_load(yaml.dump(a))
114 self.assertEqual(a, b)
117if __name__ == "__main__": 117 ↛ 118line 117 didn't jump to line 118, because the condition on line 117 was never true
118 unittest.main()