def test_scan_geometry(self):
"""Test the ScanGeometry object.
"""
scans_nb = 1
xy = np.vstack((np.deg2rad(np.array([10, 0, -10])), np.array([0, 0,
0])))
xy = np.tile(xy[:, np.newaxis, :], [1, np.int(scans_nb), 1])
times = np.tile([-0.1, 0, 0.1], [np.int(scans_nb), 1])
instrument = ScanGeometry(xy, times)
self.assertTrue(
np.allclose(np.rad2deg(instrument.fovs[0]), np.array([[10, 0,
-10]])))
# Test vectors
pos = np.rollaxis(np.tile(np.array([0, 0, 7000]), [3, 1, 1]), 2)
vel = np.rollaxis(np.tile(np.array([1, 0, 0]), [3, 1, 1]), 2)
pos = np.stack([np.array([0, 0, 7000])] * 3, 1)[:, np.newaxis, :]
vel = np.stack([np.array([1, 0, 0])] * 3, 1)[:, np.newaxis, :]
vec = instrument.vectors(pos, vel)
self.assertTrue(np.allclose(np.array([[0, 0, -1]]), vec[:, 0, 1]))
# minus sin because we use trigonometrical direction of angles
self.assertTrue(
np.allclose(
np.array(
[[0, -np.sin(np.deg2rad(10)), -np.cos(np.deg2rad(10))]]),
vec[:, 0, 0]))
self.assertTrue(
np.allclose(
np.array(
[[0, -np.sin(np.deg2rad(-10)), -np.cos(np.deg2rad(-10))]]),
vec[:, 0, 2]))
# Test times
start_of_scan = np.datetime64(datetime(2014, 1, 8, 11, 30))
times = instrument.times(start_of_scan)
self.assertEqual(times[0, 1], start_of_scan)
self.assertEqual(times[0, 0],
start_of_scan - np.timedelta64(100, 'ms'))
self.assertEqual(times[0, 2],
start_of_scan + np.timedelta64(100, 'ms'))
def test_scan_geometry(self):
"""Test the ScanGeometry object.
"""
scans_nb = 1
xy = np.vstack((np.deg2rad(np.array([10, 0, -10])),
np.array([0, 0, 0])))
xy = np.tile(xy[:, np.newaxis, :], [1, np.int(scans_nb), 1])
times = np.tile([-0.1, 0, 0.1], [np.int(scans_nb), 1])
instrument = ScanGeometry(xy, times)
self.assertTrue(np.allclose(np.rad2deg(instrument.fovs[0]),
np.array([[10, 0, -10]])))
# Test vectors
pos = np.rollaxis(np.tile(np.array([0, 0, 7000]), [3, 1, 1]), 2)
vel = np.rollaxis(np.tile(np.array([1, 0, 0]), [3, 1, 1]), 2)
pos = np.stack([np.array([0, 0, 7000])] * 3, 1)[:, np.newaxis, :]
vel = np.stack([np.array([1, 0, 0])] * 3, 1)[:, np.newaxis, :]
vec = instrument.vectors(pos, vel)
self.assertTrue(np.allclose(np.array([[0, 0, -1]]),
vec[:, 0, 1]))
# minus sin because we use trigonometrical direction of angles
self.assertTrue(np.allclose(np.array([[0,
-np.sin(np.deg2rad(10)),
-np.cos(np.deg2rad(10))]]),
vec[:, 0, 0]))
self.assertTrue(np.allclose(np.array([[0,
-np.sin(np.deg2rad(-10)),
-np.cos(np.deg2rad(-10))]]),
vec[:, 0, 2]))
# Test times
start_of_scan = np.datetime64(datetime(2014, 1, 8, 11, 30))
times = instrument.times(start_of_scan)
self.assertEquals(times[0, 1], start_of_scan)
self.assertEquals(times[0, 0], start_of_scan -
np.timedelta64(100, 'ms'))
self.assertEquals(times[0, 2], start_of_scan +
np.timedelta64(100, 'ms'))
def test_scan_geometry(self):
"""Test the ScanGeometry object.
"""
instrument = ScanGeometry(
np.deg2rad(np.array([[10, 0], [0, 0], [-10, 0]])),
np.array([-0.1, 0, 0.1]))
self.assertTrue(
np.allclose(np.rad2deg(instrument.fovs[:, 0]),
np.array([10, 0, -10])))
# Test vectors
pos = np.array([[0, 0, 7000]]).T
vel = np.array([[1, 0, 0]]).T
vec = instrument.vectors(pos, vel)
self.assertTrue(np.allclose(np.array([[0, 0, -1]]), vec[:, 1]))
# minus sin because we use trigonometrical direction of angles
self.assertTrue(
np.allclose(
np.array(
[[0, -np.sin(np.deg2rad(10)), -np.cos(np.deg2rad(10))]]),
vec[:, 0]))
self.assertTrue(
np.allclose(
np.array(
[[0, -np.sin(np.deg2rad(-10)), -np.cos(np.deg2rad(-10))]]),
vec[:, 2]))
# Test times
start_of_scan = datetime(2014, 1, 8, 11, 30)
times = instrument.times(start_of_scan)
self.assertEqual(times[1], start_of_scan)
self.assertEqual(times[0], start_of_scan - timedelta(seconds=0.1))
self.assertEqual(times[2], start_of_scan + timedelta(seconds=0.1))
def test_scan_geometry(self):
"""Test the ScanGeometry object.
"""
instrument = ScanGeometry(np.deg2rad(np.array([[10, 0],
[0, 0],
[-10, 0]])),
np.array([-0.1, 0, 0.1]))
self.assertTrue(np.allclose(np.rad2deg(instrument.fovs[:, 0]),
np.array([10, 0, -10])))
# Test vectors
pos = np.array([[0, 0, 7000]]).T
vel = np.array([[1, 0, 0]]).T
vec = instrument.vectors(pos, vel)
self.assertTrue(np.allclose(np.array([[0, 0, -1]]),
vec[:, 1]))
# minus sin because we use trigonometrical direction of angles
self.assertTrue(np.allclose(np.array([[0,
-np.sin(np.deg2rad(10)),
-np.cos(np.deg2rad(10))]]),
vec[:, 0]))
self.assertTrue(np.allclose(np.array([[0,
-np.sin(np.deg2rad(-10)),
-np.cos(np.deg2rad(-10))]]),
vec[:, 2]))
# Test times
start_of_scan = datetime(2014, 1, 8, 11, 30)
times = instrument.times(start_of_scan)
self.assertEquals(times[1], start_of_scan)
self.assertEquals(times[0], start_of_scan - timedelta(seconds=0.1))
self.assertEquals(times[2], start_of_scan + timedelta(seconds=0.1))