Python _warp_sun_coordinates Examples

Example #1

def test_warp_sun_coordinates(all_on_disk_map):
    # Define an observer
    new_observer = get_earth(all_on_disk_map.date + 6 * u.hr)

    dummy_array = np.zeros((500, 2))

    # Call the warp
    xy2 = _warp_sun_coordinates(dummy_array, all_on_disk_map, new_observer)

    # Test the properties of the output
    assert xy2.shape == dummy_array.shape
    assert isinstance(xy2, np.ndarray)

    # Test the values - values are not independently found
    # We are passing in 500 pairs of (0,0) so all the output pixels should be the same
    np.testing.assert_almost_equal(xy2[:, 0], -2.08384686, decimal=2)
    np.testing.assert_almost_equal(xy2[:, 1], -0.23927568, decimal=2)

Example #2

File: test_differential_rotation.py Project: Terry-XH/sunpy

def test_warp_sun_coordinates(all_on_disk_map):
    # Define an observer
    new_observer = get_earth(all_on_disk_map.date + 6 * u.hr)

    # This array is not used in the function but is part of the signature
    dummy_array = np.zeros(10)

    # Call the warp
    xy2 = _warp_sun_coordinates(dummy_array, all_on_disk_map, new_observer)

    # Test the properties of the output
    shape = all_on_disk_map.data.shape
    assert xy2.shape == (shape[0] * shape[1], 2)
    assert isinstance(xy2, np.ma.core.MaskedArray)

    # Test the values - values are not independently found
    np.testing.assert_almost_equal(xy2[0, 0], -2.063284482734346, decimal=2)
    np.testing.assert_almost_equal(xy2[0, 1], -0.23511899658107005, decimal=2)
    np.testing.assert_almost_equal(xy2[499, 0], 16.396007639829428, decimal=2)
    np.testing.assert_almost_equal(xy2[499, 1], 23.87553530074777, decimal=2)

Example #3

File: test_differential_rotation.py Project: PritishC/sunpy

def test_warp_sun_coordinates(all_on_disk_map):
    # Define an observer
    new_observer = get_earth(all_on_disk_map.date + 6*u.hr)

    # This array is not used in the function but is part of the signature
    dummy_array = np.zeros(10)

    # Call the warp
    xy2 = _warp_sun_coordinates(dummy_array, all_on_disk_map, new_observer)

    # Test the properties of the output
    shape = all_on_disk_map.data.shape
    assert xy2.shape == (shape[0]*shape[1], 2)
    assert isinstance(xy2, np.ma.core.MaskedArray)

    # Test the values - values are not independently found
    np.testing.assert_almost_equal(xy2[0, 0], -2.063284482734346, decimal=2)
    np.testing.assert_almost_equal(xy2[0, 1], -0.23511899658107005, decimal=2)
    np.testing.assert_almost_equal(xy2[499, 0], 16.396007639829428, decimal=2)
    np.testing.assert_almost_equal(xy2[499, 1], 23.87553530074777, decimal=2)