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# 

# LSST Data Management System 

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

# 

# This product includes software developed by the 

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

# 

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

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

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

# (at your option) any later version. 

# 

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

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

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 

# GNU General Public License for more details. 

# 

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

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

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

# 

 

import pickle 

 

import unittest 

 

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

 

 

class ConvexPolygonTestCase(unittest.TestCase): 

 

def testConstruction(self): 

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

p1 = ConvexPolygon(points) 

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

p2 = p1.clone() 

self.assertEqual(p1, p2) 

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

UnitVector3d.X(), 

UnitVector3d.Y()]) 

self.assertNotEqual(p1, p3) 

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

UnitVector3d.X(), 

UnitVector3d(1, 1, 1), 

UnitVector3d.Z()]) 

self.assertEqual(p1, p4) 

 

def testCodec(self): 

p = ConvexPolygon([UnitVector3d.Z(), 

UnitVector3d.X(), 

UnitVector3d.Y()]) 

s = p.encode() 

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

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

 

def testRelationships(self): 

p = ConvexPolygon([UnitVector3d.Z(), 

UnitVector3d.X(), 

UnitVector3d.Y()]) 

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

boundingCircle = p.getBoundingCircle() 

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

self.assertTrue(p.isWithin(boundingCircle)) 

self.assertTrue(p.intersects(boundingCircle)) 

self.assertFalse(p.isDisjointFrom(boundingCircle)) 

self.assertFalse(p.contains(boundingCircle)) 

tinyCircle = Circle(boundingCircle.getCenter()) 

self.assertFalse(p.isWithin(tinyCircle)) 

self.assertTrue(p.intersects(tinyCircle)) 

self.assertFalse(p.isDisjointFrom(tinyCircle)) 

self.assertTrue(p.contains(tinyCircle)) 

 

def testString(self): 

p = ConvexPolygon([UnitVector3d.Z(), 

UnitVector3d.X(), 

UnitVector3d.Y()]) 

self.assertEqual(str(p), repr(p)) 

self.assertEqual(repr(p), 

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

'UnitVector3d(1.0, 0.0, 0.0), ' 

'UnitVector3d(0.0, 1.0, 0.0)])') 

self.assertEqual( 

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

UnitVector3d=UnitVector3d))) 

 

def testPickle(self): 

a = ConvexPolygon([UnitVector3d.Z(), 

UnitVector3d.X(), 

UnitVector3d.Y()]) 

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

self.assertEqual(a, b) 

 

 

94 ↛ 95line 94 didn't jump to line 95, because the condition on line 94 was never trueif __name__ == '__main__': 

unittest.main()