def test_angle_under_rotation(self):
f1, f2 = Fol.rand(), Fol.rand()
D = DefGrad.from_axis(Lin(45, 45), 60)
assert np.allclose(f1.angle(f2),
f1.transform(D).angle(f2.transform(D)))
def test_transform_method(self, x, y, z):
F = DefGrad.from_axis(z, 90)
current = x.transform(F)
expects = y
assert current == expects
def test_angle_under_rotation(self):
l1, l2 = Lin.rand(), Lin.rand()
D = DefGrad.from_axis(Lin(45, 45), 60)
assert np.allclose(l1.angle(l2),
l1.transform(D).angle(l2.transform(D)))
def test_orthogonality_rotation_matrix():
lin = Lin.rand()
a = np.random.randint(180)
R = DefGrad.from_axis(lin, a)
assert np.allclose(R * R.T, np.eye(3))
def test_mutual_rotation(self, x, y, z):
current = x.H(y)
expects = DefGrad.from_axis(z, 90)
assert current == expects
def test_velgrad_integration():
F = DefGrad.from_comp(xx=2, zz=0.5)
L = VelGrad.from_comp(xx=np.log(2), zz=-np.log(2))
L.defgrad() == F
def test_defgrad_derivation():
F = DefGrad.from_comp(xx=2, zz=0.5)
L = VelGrad.from_comp(xx=np.log(2), zz=-np.log(2))
F.velgrad() == L
def test_orthogonality_rotation_matrix():
lin = Lin.rand()
a = np.random.randint(180)
R = DefGrad.from_axis(lin, a)
assert np.allclose(R * R.T, np.eye(3))
def test_angle_under_rotation(self):
f1, f2 = Fol.rand(), Fol.rand()
D = DefGrad.from_axis(Lin(45, 45), 60)
assert np.allclose(f1.angle(f2), f1.transform(D).angle(f2.transform(D)))
def test_angle_under_rotation(self):
l1, l2 = Lin.rand(), Lin.rand()
D = DefGrad.from_axis(Lin(45, 45), 60)
assert np.allclose(l1.angle(l2), l1.transform(D).angle(l2.transform(D)))
