def get_vertices(self):
cellid = int(self.cellid, base=16)
cell = s2.S2Cell(s2.S2CellId(cellid))
loop = s2.S2Loop(cell)
v0 = loop.GetS2LatLngVertex(0)
v0 = [v0.lat().degrees(), v0.lng().degrees()]
v1 = loop.GetS2LatLngVertex(1)
v1 = [v1.lat().degrees(), v1.lng().degrees()]
v2 = loop.GetS2LatLngVertex(2)
v2 = [v2.lat().degrees(), v2.lng().degrees()]
v3 = loop.GetS2LatLngVertex(3)
v3 = [v3.lat().degrees(), v3.lng().degrees()]
return [v0, v1, v2, v3]
def testS2LoopRegion(self):
cell = s2.S2Cell(s2.S2CellId(s2.S2LatLng.FromDegrees(3.0, 4.0)).parent(8))
loop = s2.S2Loop(cell)
inside = s2.S2LatLng.FromDegrees(3.0, 4.0).ToPoint()
outside = s2.S2LatLng.FromDegrees(30.0, 40.0).ToPoint()
self.assertTrue(loop.Contains(inside))
self.assertFalse(loop.Contains(outside))
self.assertTrue(loop.Contains(s2.S2Cell(inside)))
self.assertFalse(loop.Contains(s2.S2Cell(outside)))
self.assertTrue(loop.MayIntersect(s2.S2Cell(inside)))
self.assertFalse(loop.MayIntersect(s2.S2Cell(outside)))
cap_bound = loop.GetCapBound()
self.assertTrue(cap_bound.Contains(inside))
self.assertFalse(cap_bound.Contains(outside))
rect_bound = loop.GetRectBound()
self.assertTrue(rect_bound.Contains(inside))
self.assertFalse(rect_bound.Contains(outside))
def verts2loop(vs):
loop = s2.S2Loop()
loop.Init([s2.S2LatLng.FromDegrees(*v).ToPoint() for v in vs])
return loop
def testS2PolygonInitNestedWithIncorrectTypeIsWrappedCorrectly(self):
london = s2.S2LatLng.FromDegrees(51.5001525, -0.1262355)
loop = s2.S2Loop(s2.S2Cell(s2.S2CellId(london)))
polygon = s2.S2Polygon()
with self.assertRaises(TypeError):
polygon.InitNested([loop, s2.S2CellId()])
def testS2PolygonInitNestedIsWrappedCorrectly(self):
london = s2.S2LatLng.FromDegrees(51.5001525, -0.1262355)
small_loop = s2.S2Loop(s2.S2Cell(s2.S2CellId(london)))
big_loop = s2.S2Loop(s2.S2Cell(s2.S2CellId(london).parent(1)))
polygon = s2.S2Polygon()
polygon.InitNested([big_loop, small_loop])
def testS2PolygonCopiesLoopInConstructorBecauseItTakesOwnership(self):
london = s2.S2LatLng.FromDegrees(51.5001525, -0.1262355)
loop = s2.S2Loop(s2.S2Cell(s2.S2CellId(london)))
s2.S2Polygon(loop)
def testS2LoopUsesValueEquality(self):
self.assertEqual(s2.S2Loop(), s2.S2Loop())