class TestTraceProtocol(unittest.TestCase):
def setUp(self):
self._surf = Surface(FlatGeometryManager(), perfect_mirror)
dir = N.array([[1, 1, -1], [-1, 1, -1], [-1, -1, -1], [1, -1, -1]]).T / math.sqrt(3)
position = c_[[0,0,1], [1,-1,1], [1,1,1], [-1,1,1]]
self._bund = RayBundle(position, dir, energy=N.ones(4)*100)
def test_register_incoming(self):
"""Flat mirror: a simple bundle is registered correctly"""
correct_params = r_[[math.sqrt(3)]*4]
params = self._surf.register_incoming(self._bund)
N.testing.assert_array_almost_equal(params, correct_params)
def test_get_outgoing(self):
"""Flat mirror: the correct outgoing bundle is returned"""
params = self._surf.register_incoming(self._bund)
self._surf.select_rays(N.arange(4))
outg = self._surf.get_outgoing()
correct_pts = N.zeros((3,4))
correct_pts[:2,0] = 1
N.testing.assert_array_equal(outg.get_vertices(), correct_pts)
correct_dirs = N.c_[[1, 1, 1], [-1, 1, 1], [-1, -1, 1], [1, -1, 1]] / N.sqrt(3)
N.testing.assert_array_equal(outg.get_directions(), correct_dirs)
N.testing.assert_array_equal(outg.get_energy(), N.ones(4)*100)
N.testing.assert_array_equal(outg.get_parents(), N.arange(4))
class TestParabolicDish(unittest.TestCase):
def setUp(self):
pos = N.zeros((3, 4))
pos[0] = N.r_[0, 0.5, 2, -2]
pos[2] = 2.
dir = N.tile(N.c_[[0, 0, -1]], (1, 4))
self.bund = RayBundle()
self.bund.set_vertices(pos)
self.bund.set_directions(dir)
self.surf = Surface(ParabolicDishGM(2., 1.), opt.perfect_mirror)
def test_selection_at_origin(self):
"""Simple dish rejects missing rays"""
misses = N.isinf(self.surf.register_incoming(self.bund))
N.testing.assert_array_equal(misses, N.r_[False, False, True, True])
def test_transformed(self):
"""Translated and rotated dish rejects missing rays"""
trans = generate_transform(N.r_[1., 0., 0.], N.pi / 4.,
N.c_[[0., 0., 1.]])
self.surf.transform_frame(trans)
misses = N.isinf(self.surf.register_incoming(self.bund))
N.testing.assert_array_equal(misses, N.r_[False, False, True, True])
def test_mesh(self):
"""Parabolic dish mesh looks OK"""
p = ParabolicDishGM(5, 3)
x, y, z = p.mesh(5)
N.testing.assert_array_almost_equal(z, p.a * (x**2 + y**2))
self.failIf(N.any(x**2 + y**2 > 6.25))
class TestParabolicDish(unittest.TestCase):
def setUp(self):
pos = N.zeros((3,4))
pos[0] = N.r_[0, 0.5, 2, -2]
pos[2] = 2.
dir = N.tile(N.c_[[0,0,-1]], (1,4))
self.bund = RayBundle()
self.bund.set_vertices(pos)
self.bund.set_directions(dir)
self.surf = Surface(ParabolicDishGM(2., 1.), opt.perfect_mirror)
def test_selection_at_origin(self):
"""Simple dish rejects missing rays"""
misses = N.isinf(self.surf.register_incoming(self.bund))
N.testing.assert_array_equal(misses, N.r_[False, False, True, True])
def test_transformed(self):
"""Translated and rotated dish rejects missing rays"""
trans = generate_transform(N.r_[1., 0., 0.], N.pi/4., N.c_[[0., 0., 1.]])
self.surf.transform_frame(trans)
misses = N.isinf(self.surf.register_incoming(self.bund))
N.testing.assert_array_equal(misses, N.r_[False, False, True, True])
def test_mesh(self):
"""Parabolic dish mesh looks OK"""
p = ParabolicDishGM(5, 3)
x, y, z = p.mesh(5)
N.testing.assert_array_almost_equal(z, p.a*(x**2 + y**2))
self.failIf(N.any(x**2 + y**2 > 6.25))
class TestTraceProtocol(unittest.TestCase):
def setUp(self):
self._surf = Surface(FlatGeometryManager(), perfect_mirror)
dir = N.array([[1, 1, -1], [-1, 1, -1], [-1, -1, -1], [1, -1, -1]
]).T / math.sqrt(3)
position = c_[[0, 0, 1], [1, -1, 1], [1, 1, 1], [-1, 1, 1]]
self._bund = RayBundle(position, dir, energy=N.ones(4) * 100)
def test_register_incoming(self):
"""Flat mirror: a simple bundle is registered correctly"""
correct_params = r_[[math.sqrt(3)] * 4]
params = self._surf.register_incoming(self._bund)
N.testing.assert_array_almost_equal(params, correct_params)
def test_get_outgoing(self):
"""Flat mirror: the correct outgoing bundle is returned"""
params = self._surf.register_incoming(self._bund)
self._surf.select_rays(N.arange(4))
outg = self._surf.get_outgoing()
correct_pts = N.zeros((3, 4))
correct_pts[:2, 0] = 1
N.testing.assert_array_equal(outg.get_vertices(), correct_pts)
correct_dirs = N.c_[[1, 1, 1], [-1, 1, 1], [-1, -1, 1],
[1, -1, 1]] / N.sqrt(3)
N.testing.assert_array_equal(outg.get_directions(), correct_dirs)
N.testing.assert_array_equal(outg.get_energy(), N.ones(4) * 100)
N.testing.assert_array_equal(outg.get_parents(), N.arange(4))
def runTest(self):
pos = N.array([[0, 1.5], [0, -1.5], [1, 0], [-1, 0], [0.1, 0.1], [-0.1, 0.6]])
bund = RayBundle()
bund.set_vertices(N.vstack((pos.T, N.ones(pos.shape[0]))))
bund.set_directions(N.tile(N.c_[[0,0,-1]], (1,6)))
surf = Surface(HexagonalParabolicDishGM(2., 1.), opt.perfect_mirror)
misses = N.isinf(surf.register_incoming(bund))
N.testing.assert_array_equal(misses, N.r_[True, True, True, True, False, False])
def runTest(self):
pos = N.array([[0, 1.5], [0, -1.5], [1, 0], [-1, 0], [0.1, 0.1],
[-0.1, 0.6]])
bund = RayBundle()
bund.set_vertices(N.vstack((pos.T, N.ones(pos.shape[0]))))
bund.set_directions(N.tile(N.c_[[0, 0, -1]], (1, 6)))
surf = Surface(HexagonalParabolicDishGM(2., 1.), opt.perfect_mirror)
misses = N.isinf(surf.register_incoming(bund))
N.testing.assert_array_equal(
misses, N.r_[True, True, True, True, False, False])
def test_selection(self):
pos = N.zeros((3,4))
pos[0] = N.r_[0, 0.5, 2, -2]
pos[2] = 1.
dir = N.tile(N.c_[[0,0,-1]], (1,4))
bund = RayBundle(pos, dir)
surf = Surface(RoundPlateGM(1), opt.perfect_mirror)
misses = N.isinf(surf.register_incoming(bund))
N.testing.assert_array_equal(misses, N.r_[False, False, True, True])
def test_selection(self): pos = N.zeros((3,4)) pos[0] = N.r_[0, 0.05, 0.2, -0.3] pos[2] = 1. dir = N.tile(N.c_[[0,0,-1]], (1,4)) bund = RayBundle(pos, dir) surf = Surface(ExtrudedRectPlateGM(width=1, height=1, extr_center=N.vstack([0.2,0.1]), extr_width=0.2, extr_height=0.4), opt.perfect_mirror) misses = N.isinf(surf.register_incoming(bund)) N.testing.assert_array_equal(misses, N.r_[False, False, True, False])
