def test_transform_matrix_rotation_only_correct(self):
from e3fp.fingerprint.array_ops import make_transform_matrix, \
as_unit, pad_array, \
unpad_array, Y_AXIS
for i in range(1, 5):
center = np.zeros(3, dtype=np.float)
arr = np.random.uniform(size=(i, 3)) + center
y = arr[0, :]
trans_mat = make_transform_matrix(center, y)
pad_arr = pad_array(arr)
rot_arr = unpad_array(np.dot(trans_mat, pad_arr.T).T)
y0 = as_unit(rot_arr[0, :])
np.testing.assert_array_almost_equal(y0.flatten(),
Y_AXIS.flatten())
def test_transform_matrix_with_translation_correct(self):
from e3fp.fingerprint.array_ops import make_transform_matrix, \
as_unit, pad_array, \
unpad_array, Y_AXIS
for i in range(2, 7):
arr = np.random.uniform(size=(i, 3))
center = arr[0, :]
y = arr[1, :] - center
trans_mat = make_transform_matrix(center, y)
pad_arr = pad_array(arr)
rot_arr = unpad_array(np.dot(trans_mat, pad_arr.T).T)
c0 = rot_arr[0, :]
y0 = as_unit(rot_arr[1, :])
np.testing.assert_array_almost_equal(c0.flatten(), np.zeros(3))
np.testing.assert_array_almost_equal(y0.flatten(),
Y_AXIS.flatten())
def test_two_axis_transform_correct1(self):
from e3fp.fingerprint.array_ops import make_transform_matrix, \
as_unit, pad_array, \
unpad_array, Y_AXIS
for i in range(3, 8):
arr = np.random.uniform(size=(i, 3))
center = arr[0, :]
y = arr[1, :] - center
z = arr[2, :] - center
trans_mat = make_transform_matrix(center, y, z)
pad_arr = pad_array(arr)
rot_arr = unpad_array(np.dot(trans_mat, pad_arr.T).T)
c0 = rot_arr[0, :]
y0 = as_unit(rot_arr[1, :])
z0 = as_unit(rot_arr[2, :])
np.testing.assert_array_almost_equal(c0.flatten(), np.zeros(3))
np.testing.assert_array_almost_equal(y0.flatten(),
Y_AXIS.flatten())
self.assertAlmostEqual(z0[0], 0.)