def test_centered_group(self):
g = Group.randn_lin(mean=Lin(40, 50))
gc = g.centered
el = gc.ortensor.eigenlins
assert el[0] == Lin(0, 90) and el[1] == Lin(90, 0) and el[2] == Lin(
0, 0)
def test_group_examples(self):
exlist = Group.examples()
for ex in exlist:
g = Group.examples(ex)
assert g.name == ex
def test_group_type_error(self):
with pytest.raises(Exception) as exc:
Group([1, 2, 3])
assert "Data must be Fol, Lin or Vec3 type." == str(exc.exception)
def test_group_heterogenous_error(self):
with pytest.raises(Exception) as exc:
Group([Fol(10, 10), Lin(20, 20)])
assert "All data in group must be of same type." == str(
exc.exception)
def test_rdegree_under_rotation(self):
g = Group.randn_lin()
assert np.allclose(g.rotate(Lin(45, 45), 90).rdegree, g.rdegree)
def test_resultant_rdegree(self):
g = Group.from_array([45, 135, 225, 315], [45, 45, 45, 45], Lin)
c1 = g.R.uv == Lin(0, 90)
c2 = np.allclose(abs(g.R), np.sqrt(8))
c3 = np.allclose((g.rdegree / 100 + 1)**2, 2)
assert c1 and c2 and c3
def test_group_examples(self):
exlist = Group.examples()
for ex in exlist:
g = Group.examples(ex)
def test_ortensor_uniform():
f = Fol.rand()
assert np.allclose(
Ortensor.from_group(Group([f.V, f.rake(-45),
f.rake(45)]))._evals,
np.ones(3) / 3)
def test_rotation_invariant(self):
g = Group.randn_lin()
self.assertTrue(np.allclose(g.rotate(Lin(45, 45), 90).rdegree, g.rdegree))
def test_resultant_rdegree(self):
g = Group.from_array([45, 135, 225, 315], [45, 45, 45, 45])
c1 = g.resultant.uv == Lin(0, 90)
c2 = np.allclose(abs(g.resultant), np.sqrt(8))
c3 = np.allclose((g.rdegree/100 + 1)**2, 2)
self.assertTrue(c1 and c2 and c3)
def test_resultant_rdegree(self):
g = Group.fromarray([45, 135, 225, 315], [45, 45, 45, 45])
c1 = g.resultant.uv == Lin(0, 90)
c2 = np.allclose(abs(g.resultant), np.sqrt(8))
c3 = np.allclose((g.rdegree / 100 + 1)**2, 2)
self.assertTrue(c1 and c2 and c3)
def test_rotation_invariant(self):
g = Group.randn_lin()
self.assertTrue(
np.allclose(g.rotate(Lin(45, 45), 90).rdegree, g.rdegree))
def test_group_examples(self):
exlist = Group.examples()
for ex in exlist:
g = Group.examples(ex)
def test_centered_group(self):
g = Group.randn_lin(mean=Lin(40, 50))
gc = g.centered
el = gc.ortensor.eigenlins
assert el[0] == Lin(0, 90) and el[1] == Lin(90, 0) and el[2] == Lin(0, 0)
def test_rdegree_under_rotation(self):
g = Group.randn_lin()
assert np.allclose(g.rotate(Lin(45, 45), 90).rdegree, g.rdegree)
