def test_SphMapBasics(self):
sphmap = ast.SphMap()
self.assertEqual(sphmap.className, "SphMap")
self.assertEqual(sphmap.nIn, 3)
self.assertEqual(sphmap.nOut, 2)
self.assertEqual(sphmap.polarLong, 0)
self.assertFalse(sphmap.unitRadius)
self.checkCopy(sphmap)
# SphMap followed by an inverse, simplified, is a compound map,
# not a UnitMap, since data only round trips for unit vectors.
# Hence the following test instead of checkBasicSimplify:
simplified = sphmap.then(sphmap.inverted()).simplified()
self.assertTrue(isinstance(simplified, ast.CmpMap))
# for data to round trip, all inputs must be unit vectors
indata = np.array([
[1.0, 0.0, 0.0, -1.0, 0.0, 0.0, 1.0 / math.sqrt(3.0)],
[0.0, 1.0, 0.0, 0.0, -1.0, 0.0, 1.0 / math.sqrt(3.0)],
[0.0, 0.0, 1.0, 0.0, 0.0, -1.0, 1.0 / math.sqrt(3.0)],
], dtype=float)
halfpi = math.pi / 2.0
pred_outdata = np.array([
[0.0, halfpi, 0.0, math.pi, -halfpi, 0.0, math.pi / 4.0],
[0.0, 0.0, halfpi, 0.0, 0.0, -halfpi, math.atan(1.0 / math.sqrt(2.0))],
], dtype=float)
outdata = sphmap.applyForward(indata)
assert_allclose(outdata, pred_outdata)
self.checkRoundTrip(sphmap, indata)
self.checkMappingPersistence(sphmap, indata)
def test_SphMapBasics(self):
sphmap = astshim.SphMap()
self.assertEqual(sphmap.className, "SphMap")
self.assertEqual(sphmap.nIn, 3)
self.assertEqual(sphmap.nOut, 2)
self.assertEqual(sphmap.polarLong, 0)
self.assertFalse(sphmap.unitRadius)
self.checkCopy(sphmap)
self.checkPersistence(sphmap)
indata = np.array([
[1.0, 0.0, 0.0, -1.0, 0.0, 0.0, 1.0 / math.sqrt(3.0)],
[0.0, 1.0, 0.0, 0.0, -1.0, 0.0, 1.0 / math.sqrt(3.0)],
[0.0, 0.0, 1.0, 0.0, 0.0, -1.0, 1.0 / math.sqrt(3.0)],
],
dtype=float)
halfpi = math.pi / 2.0
pred_outdata = np.array([
[0.0, halfpi, 0.0, math.pi, -halfpi, 0.0, math.pi / 4.0],
[
0.0, 0.0, halfpi, 0.0, 0.0, -halfpi,
math.atan(1.0 / math.sqrt(2.0))
],
],
dtype=float)
outdata = sphmap.applyForward(indata)
assert_allclose(outdata, pred_outdata)
self.checkRoundTrip(sphmap, indata)
def test_SphMapAttributes(self):
sphmap = ast.SphMap("PolarLong=0.5, UnitRadius=1")
self.assertEqual(sphmap.polarLong, 0.5)
self.assertTrue(sphmap.unitRadius)
