class TransformCase(unittest.TestCase):
def setUp(self):
self.s = Spheroid(distance=2., direction=(1, 3, 4.),
angles=(.3, .2, .1))
def test_offset(self):
nptest.assert_allclose(self.s.offset,
self.s.distance*self.s.direction)
def test_from_to_axis(self, n=10):
x = np.random.randn(n, 3)
x1 = self.s.to_axis(x)
x2 = self.s.from_axis(x1)
nptest.assert_allclose(x, x2)
def test_from_to_normal(self, n=10):
x = np.random.randn(n, 3)
x1 = self.s.to_normal(x)
x2 = self.s.from_normal(x1)
nptest.assert_allclose(x, x2)
def test_rot(self):
self.s.angles = 0, 0, 0
x = np.array([0., 0, 3])
x1 = self.s.from_normal(x)
nptest.assert_allclose(x1, self.s.direction*3)
self.s.direction = 0, 0, 1.
self.s.angles = .1, 0, 0
x1 = self.s.from_normal(x)
nptest.assert_allclose(x1, (0, 3*np.sin(.1), 3*np.cos(.1)))
class TransformCase(unittest.TestCase):
def setUp(self):
self.s = Spheroid(distance=2.,
direction=(1, 3, 4.),
angles=(.3, .2, .1))
def test_offset(self):
nptest.assert_allclose(self.s.offset,
self.s.distance * self.s.direction)
def test_from_to_axis(self, n=10):
x = np.random.randn(n, 3)
x1 = self.s.to_axis(x)
x2 = self.s.from_axis(x1)
nptest.assert_allclose(x, x2)
def test_from_to_normal(self, n=10):
x = np.random.randn(n, 3)
x1 = self.s.to_normal(x)
x2 = self.s.from_normal(x1)
nptest.assert_allclose(x, x2)
def test_rot(self):
self.s.angles = 0, 0, 0
x = np.array([0., 0, 3])
x1 = self.s.from_normal(x)
nptest.assert_allclose(x1, self.s.direction * 3)
self.s.direction = 0, 0, 1.
self.s.angles = .1, 0, 0
x1 = self.s.from_normal(x)
nptest.assert_allclose(x1, (0, 3 * np.sin(.1), 3 * np.cos(.1)))
class ParaxialCase(unittest.TestCase):
def setUp(self):
self.mat = mat = ModelMaterial(n=1.5)
self.s0 = Spheroid(curvature=0., distance=0., material=mat)
self.s = Spheroid(curvature=.1, distance=0, material=mat)
self.sm0 = Spheroid(curvature=0, distance=0, material=mirror)
self.sm = Spheroid(curvature=.1, distance=0, material=mirror)
def test_offset(self):
nptest.assert_allclose(self.s.direction, (0, 0, 1))
nptest.assert_allclose(self.s.distance, 0)
nptest.assert_allclose(self.s.offset, 0)
def test_rotation(self):
nptest.assert_allclose(self.s.angles, (0, 0, 0.))
nptest.assert_allclose(self.s.from_axis([0, 0, 1]), (0, 0, 1))
nptest.assert_allclose(self.s.from_normal([0, 0, 1]), (0, 0, 1))
def test_snell_paraxial(self):
y0, u0 = (1, 2), (.2, .1)
yu, n = self.s0.propagate_paraxial(np.hstack((y0, u0)), 1., 1.)
y, u = np.hsplit(yu, 2)
mu = 1/self.s0.material.n
nptest.assert_allclose(y, y0)
nptest.assert_allclose(u, u0)
def test_snell_paraxial_mirror(self):
y0, u0 = (1, 2), (.2, .1)
yu, n = self.sm0.propagate_paraxial(np.hstack((y0, u0)), 1., 1.)
y, u = np.hsplit(yu, 2)
nptest.assert_allclose(y, y0)
nptest.assert_allclose(u, u0)
def test_align(self):
d = 0, -.1, 1
d /= np.linalg.norm(d)
mu = 1/self.s0.material.n
self.s0.align(d, mu)
e = self.s0.from_normal(self.s0.excidence(mu))
nptest.assert_allclose(e, d)
y0, u0 = (1, 2), (.2, .0)
yu, n = self.s0.propagate_paraxial(np.hstack((y0, u0)), 1., 1.)
y, u = np.hsplit(yu, 2)
nptest.assert_allclose(y[0], y0[0])
nptest.assert_allclose(u[0], u0[0])
nptest.assert_allclose(u[1], d[0])
class ParaxialCase(unittest.TestCase):
def setUp(self):
self.mat = mat = ModelMaterial(n=1.5)
self.s0 = Spheroid(curvature=0., distance=0., material=mat)
self.s = Spheroid(curvature=.1, distance=0, material=mat)
self.sm0 = Spheroid(curvature=0, distance=0, material=mirror)
self.sm = Spheroid(curvature=.1, distance=0, material=mirror)
def test_offset(self):
nptest.assert_allclose(self.s.direction, (0, 0, 1))
nptest.assert_allclose(self.s.distance, 0)
nptest.assert_allclose(self.s.offset, 0)
def test_rotation(self):
nptest.assert_allclose(self.s.angles, (0, 0, 0.))
nptest.assert_allclose(self.s.from_axis([0, 0, 1]), (0, 0, 1))
nptest.assert_allclose(self.s.from_normal([0, 0, 1]), (0, 0, 1))
def test_snell_paraxial(self):
y0, u0 = (1, 2), (.2, .1)
yu, n = self.s0.propagate_paraxial(np.hstack((y0, u0)), 1., 1.)
y, u = np.hsplit(yu, 2)
mu = 1 / self.s0.material.n
nptest.assert_allclose(y, y0)
nptest.assert_allclose(u, u0)
def test_snell_paraxial_mirror(self):
y0, u0 = (1, 2), (.2, .1)
yu, n = self.sm0.propagate_paraxial(np.hstack((y0, u0)), 1., 1.)
y, u = np.hsplit(yu, 2)
nptest.assert_allclose(y, y0)
nptest.assert_allclose(u, u0)
def test_align(self):
d = 0, -.1, 1
d /= np.linalg.norm(d)
mu = 1 / self.s0.material.n
self.s0.align(d, mu)
e = self.s0.from_normal(self.s0.excidence(mu))
nptest.assert_allclose(e, d)
y0, u0 = (1, 2), (.2, .0)
yu, n = self.s0.propagate_paraxial(np.hstack((y0, u0)), 1., 1.)
y, u = np.hsplit(yu, 2)
nptest.assert_allclose(y[0], y0[0])
nptest.assert_allclose(u[0], u0[0])
nptest.assert_allclose(u[1], d[0])
