def test_topotomo_tilts(self):
# tests cases from ma2285 experiment on id11, omega offset = -90
T = np.array([[0, -1, 0], [1, 0, 0], [0, 0, 1]])
al = Lattice.from_symbol('Al')
p = HklPlane(0, 0, 2, lattice=al)
rod = [0.1449, -0.0281, 0.0616]
o = Orientation.from_rodrigues(rod)
(ut, lt) = o.topotomo_tilts(p, T)
self.assertAlmostEqual(180 / np.pi * ut, 2.236, 3)
self.assertAlmostEqual(180 / np.pi * lt, 16.615, 3)
# use test case from AlLi_sam8_dct_cen_
p = HklPlane(2, 0, 2, lattice=al)
rod = [0.0499, -0.3048, 0.1040]
o = Orientation.from_rodrigues(rod)
(ut, lt) = o.topotomo_tilts(p, T)
self.assertAlmostEqual(180 / np.pi * ut, -11.04, 2)
self.assertAlmostEqual(180 / np.pi * lt, -0.53, 2)
# test case from ma3921
T = Orientation.compute_instrument_transformation_matrix(-1.2, 0.7, 90)
Ti7Al = Lattice.hexagonal(0.2931, 0.4694) # nm
(h, k, l) = HklPlane.four_to_three_indices(-1, 2, -1, 0)
p = HklPlane(h, k, l, Ti7Al)
o = Orientation.from_rodrigues([0.7531, 0.3537, 0.0621])
(ut, lt) = o.topotomo_tilts(p, T)
self.assertAlmostEqual(180 / np.pi * ut, 11.275, 2)
self.assertAlmostEqual(180 / np.pi * lt, -4.437, 2)
beta = 66 gamma = 66 l = Lattice.cubic(a) cubic = lattice_3d(l) apply_translation_to_actor(cubic, (0.5, 0.5, 0.0)) l = Lattice.tetragonal(a, c) tetragonal = lattice_3d(l) apply_translation_to_actor(tetragonal, (2.0, 2.0, 0.0)) l = Lattice.orthorombic(a, b, c) orthorombic = lattice_3d(l) apply_translation_to_actor(orthorombic, (3.5, 3.5, 0.0)) l = Lattice.hexagonal(a, c) hexagonal = lattice_3d(l) apply_translation_to_actor(hexagonal, (5.0, 5.0, 0.0)) l = Lattice.rhombohedral(a, alpha) rhombohedral = lattice_3d(l) apply_translation_to_actor(rhombohedral, (6.5, 6.5, 0.0)) l = Lattice.monoclinic(a, b, c, alpha) monoclinic = lattice_3d(l) apply_translation_to_actor(monoclinic, (8.0, 8.0, 0.0)) l = Lattice.triclinic(a, b, c, alpha, beta, gamma) triclinic = lattice_3d(l) apply_translation_to_actor(triclinic, (9.5, 9.5, 0.0))
def setUp(self):
print('testing the HklPlane class')
self.hex = Lattice.hexagonal(0.2931, 0.4694) # nm