def testChunkBoundingBox(self):
chunker = Chunker(200, 5)
chunk_id = 3645
stripe = chunker.getStripe(chunk_id)
chunk_in_stripe = chunker.getChunk(chunk_id, stripe)
bbox = chunker.getChunkBoundingBox(stripe, chunk_in_stripe)
sbbox = chunker.getSubChunkBoundingBox(0, 0)
self.assertEqual(stripe, 9)
self.assertEqual(chunk_in_stripe, 45)
b = Box.fromRadians(5.048988193233824, -1.4294246573883558,
5.1611879309330035, -1.413716694110407)
self.assertAlmostEqual(bbox, b)
sb = Box.fromRadians(0.0, -1.5707963267948966, 6.283185307179586,
-1.5676547341363067)
self.assertAlmostEqual(sbbox, sb)
def test_string(self):
b = Box.fromRadians(0, 0, 1, 1)
self.assertEqual(str(b), 'Box([0.0, 1.0], [0.0, 1.0])')
self.assertEqual(
repr(b),
'Box(NormalizedAngleInterval.fromRadians(0.0, 1.0), '
'AngleInterval.fromRadians(0.0, 1.0))'
)
self.assertEqual(b, eval(repr(b), dict(
AngleInterval=AngleInterval, Box=Box,
NormalizedAngleInterval=NormalizedAngleInterval
)))
def test_construction(self):
b = Box(Box.allLongitudes(), Box.allLatitudes())
self.assertTrue(b.isFull())
b = Box.fromDegrees(-90, -45, 90, 45)
self.assertEqual(b, Box(b.getLon(), b.getLat()))
a = Box.fromRadians(-0.5 * math.pi, -0.25 * math.pi, 0.5 * math.pi,
0.25 * math.pi)
b = Box(LonLat.fromRadians(-0.5 * math.pi, -0.25 * math.pi),
LonLat.fromRadians(0.5 * math.pi, 0.25 * math.pi))
c = Box(LonLat.fromRadians(0, 0), Angle(0.5 * math.pi),
Angle(0.25 * math.pi))
d = c.clone()
self.assertEqual(a, b)
self.assertEqual(b, c)
self.assertEqual(c, d)
self.assertNotEqual(id(c), id(d))
b = Box()
self.assertTrue(b.isEmpty())
self.assertTrue(Box.empty().isEmpty())
self.assertTrue(Box.full().isFull())
def test_codec(self):
b = Box.fromRadians(0, 0, 1, 1)
s = b.encode()
self.assertEqual(Box.decode(s), b)
self.assertEqual(Region.decode(s), b)
def test_dilation_and_erosion(self):
a = Box.fromRadians(0.5, -0.5, 1.5, 0.5)
b = a.dilatedBy(Angle(0.5), Angle(0.5)).erodedBy(Angle(1), Angle(1))
a.dilateBy(Angle(0.5), Angle(0.5)).erodeBy(Angle(1), Angle(1))
self.assertEqual(a, b)
self.assertEqual(a, LonLat.fromRadians(1, 0))
