class TestFlatGeomTilted(unittest.TestCase): """Use a flat surface rotated about the x axis by 45 degrees""" def setUp(self): s2 = math.sqrt(2) dir = N.c_[[1, 0, -s2], [-1, 0, -s2], [-1, -s2, 0], [1, -s2, 0]] / math.sqrt(3) position = N.c_[[0, 1 / s2, 1 / s2], [1, 0, s2], [1, s2, 0], [-1, s2, 0]] self._bund = RayBundle(position, dir) self.gm = FlatGeometryManager() frame = SP.generate_transform(N.r_[1., 0, 0], -N.pi / 4., N.zeros((3, 1))) self.prm = self.gm.find_intersections(frame, self._bund) def test_find_intersections(self): """The correct parametric locations are found for flat geometry""" self.failUnlessEqual(self.prm.shape, (4,), "Shape of parametric location array is wrong: " + \ str(self.prm.shape)) N.testing.assert_array_almost_equal(self.prm, math.sqrt(3)) def test_get_normals(self): """A tilted flat geometry manager returns parallel normals""" s2 = math.sqrt(2) self.gm.select_rays(N.arange(4)) n = self.gm.get_normals() N.testing.assert_array_almost_equal( n, N.tile(N.c_[[0, 1 / s2, 1 / s2]], (1, 4))) def test_select_rays_normals(self): """A tilted flat geometry manager returns normals only for selected rays""" s2 = math.sqrt(2) self.gm.select_rays(N.r_[1, 3]) n = self.gm.get_normals() N.testing.assert_array_almost_equal( n, N.tile(N.c_[[0, 1 / s2, 1 / s2]], (1, 2))) def test_inters_points_global(self): """On the basic setup, a tilted flat surface returns correct intersections""" correct_pts = N.zeros((3, 4)) s2 = math.sqrt(2) correct_pts[:, 0] = N.r_[1, 1 / s2, -1 / s2] self.gm.select_rays(N.arange(4)) pts = self.gm.get_intersection_points_global() N.testing.assert_array_almost_equal(pts, correct_pts) def test_select_rays_inters(self): """With dropped rays, a tilted flat surface returns correct intersections""" s2 = math.sqrt(2) correct_pts = N.zeros((3, 2)) self.gm.select_rays(N.r_[1, 3]) pts = self.gm.get_intersection_points_global() N.testing.assert_array_almost_equal(pts, correct_pts)
class TestFlatGeomTilted(unittest.TestCase): """Use a flat surface rotated about the x axis by 45 degrees""" def setUp(self): s2 = math.sqrt(2) dir = N.c_[[1, 0, -s2], [-1, 0, -s2], [-1, -s2, 0], [1, -s2, 0]] / math.sqrt(3) position = N.c_[[0,1/s2,1/s2], [1,0,s2], [1,s2,0], [-1,s2,0]] self._bund = RayBundle(position, dir) self.gm = FlatGeometryManager() frame = SP.generate_transform(N.r_[1., 0, 0], -N.pi/4., N.zeros((3,1))) self.prm = self.gm.find_intersections(frame, self._bund) def test_find_intersections(self): """The correct parametric locations are found for flat geometry""" self.failUnlessEqual(self.prm.shape, (4,), "Shape of parametric location array is wrong: " + \ str(self.prm.shape)) N.testing.assert_array_almost_equal(self.prm, math.sqrt(3)) def test_get_normals(self): """A tilted flat geometry manager returns parallel normals""" s2 = math.sqrt(2) self.gm.select_rays(N.arange(4)) n = self.gm.get_normals() N.testing.assert_array_almost_equal(n, N.tile(N.c_[[0,1/s2,1/s2]], (1,4))) def test_select_rays_normals(self): """A tilted flat geometry manager returns normals only for selected rays""" s2 = math.sqrt(2) self.gm.select_rays(N.r_[1,3]) n = self.gm.get_normals() N.testing.assert_array_almost_equal(n, N.tile(N.c_[[0,1/s2,1/s2]], (1,2))) def test_inters_points_global(self): """On the basic setup, a tilted flat surface returns correct intersections""" correct_pts = N.zeros((3,4)) s2 = math.sqrt(2) correct_pts[:,0] = N.r_[1, 1/s2, -1/s2] self.gm.select_rays(N.arange(4)) pts = self.gm.get_intersection_points_global() N.testing.assert_array_almost_equal(pts, correct_pts) def test_select_rays_inters(self): """With dropped rays, a tilted flat surface returns correct intersections""" s2 = math.sqrt(2) correct_pts = N.zeros((3,2)) self.gm.select_rays(N.r_[1,3]) pts = self.gm.get_intersection_points_global() N.testing.assert_array_almost_equal(pts, correct_pts)
class TestFlatGeomTranslated(unittest.TestCase): def setUp(self): dir = N.c_[[1, 1, -1], [-1, 1, -1], [-1, -1, -1], [1, -1, -1]] / math.sqrt(3) position = N.c_[[0,0,1], [1,-1,1], [1,1,1], [-1,1,1]] self._bund = RayBundle(position, dir) self.gm = FlatGeometryManager() frame = SP.translate(1., 0., 0.) self.prm = self.gm.find_intersections(frame, self._bund) def test_find_intersections(self): """The correct parametric locations are found for translated flat geometry""" self.failUnlessEqual(self.prm.shape, (4,), "Shape of parametric location array is wrong: " + \ str(self.prm.shape)) N.testing.assert_array_almost_equal(self.prm, N.sqrt(3)) def test_get_normals(self): """A translated flat geometry manager returns parallel normals""" self.gm.select_rays(N.arange(4)) n = self.gm.get_normals() N.testing.assert_array_equal(n, N.tile(N.c_[[0, 0, 1]], (1,4))) def test_inters_points_global(self): """When translated, a flat surface returns correct intersections""" correct_pts = N.zeros((3,4)) correct_pts[:2,0] = 1 self.gm.select_rays(N.arange(4)) pts = self.gm.get_intersection_points_global() N.testing.assert_array_equal(pts, correct_pts)
def test_all_refracted(self): dir = N.c_[[1, 1, -1], [-1, 1, -1], [-1, -1, -1], [1, -1, -1]] / N.sqrt(3) position = N.c_[[0,0,1], [1,-1,1], [1,1,1], [-1,1,1]] en = N.r_[100, 200, 300, 400] bund = RayBundle(position, dir, energy=en, ref_index=N.ones(4)) gm = FlatGeometryManager() prm = gm.find_intersections(N.eye(4), bund) refractive = optics_callables.RefractiveHomogenous(1,1.5) selector = N.array([0, 1, 3]) gm.select_rays(selector) outg = refractive(gm, bund, selector) correct_pts = N.zeros((3,4)) correct_pts[:2,0] = 1 correct_pts = N.hstack((correct_pts[:,selector], correct_pts[:,selector])) N.testing.assert_array_equal(outg.get_vertices(), correct_pts) norm = N.c_[gm.get_normals()[:,0]] correct_refl_cos = -(dir*norm).sum(axis=0)[selector] correct_refr_cos = -N.sqrt(1 - (1./1.5)**2*(1 - correct_refl_cos**2)) outg_cos = (outg.get_directions()*norm).sum(axis=0) N.testing.assert_array_equal(outg_cos, N.r_[correct_refl_cos, correct_refr_cos]) N.testing.assert_array_equal(outg.get_energy().reshape(2,-1).sum(axis=0), \ N.r_[100, 200, 400]) # reflection and refraction sum to 100% N.testing.assert_array_equal(outg.get_parents(), N.tile(selector, 2))
class TestFlatGeomTranslated(unittest.TestCase): def setUp(self): dir = N.c_[[1, 1, -1], [-1, 1, -1], [-1, -1, -1], [1, -1, -1]] / math.sqrt(3) position = N.c_[[0, 0, 1], [1, -1, 1], [1, 1, 1], [-1, 1, 1]] self._bund = RayBundle(position, dir) self.gm = FlatGeometryManager() frame = SP.translate(1., 0., 0.) self.prm = self.gm.find_intersections(frame, self._bund) def test_find_intersections(self): """The correct parametric locations are found for translated flat geometry""" self.failUnlessEqual(self.prm.shape, (4,), "Shape of parametric location array is wrong: " + \ str(self.prm.shape)) N.testing.assert_array_almost_equal(self.prm, N.sqrt(3)) def test_get_normals(self): """A translated flat geometry manager returns parallel normals""" self.gm.select_rays(N.arange(4)) n = self.gm.get_normals() N.testing.assert_array_equal(n, N.tile(N.c_[[0, 0, 1]], (1, 4))) def test_inters_points_global(self): """When translated, a flat surface returns correct intersections""" correct_pts = N.zeros((3, 4)) correct_pts[:2, 0] = 1 self.gm.select_rays(N.arange(4)) pts = self.gm.get_intersection_points_global() N.testing.assert_array_equal(pts, correct_pts)
class TestFlatGeomManagerInterface(unittest.TestCase): def setUp(self): dir = N.c_[[1, 1, -1], [-1, 1, -1], [-1, -1, -1], [1, -1, -1]] / math.sqrt(3) position = N.c_[[0, 0, 1], [1, -1, 1], [1, 1, 1], [-1, 1, 1]] self._bund = RayBundle(position, dir) self.gm = FlatGeometryManager() self.prm = self.gm.find_intersections(N.eye(4), self._bund) def test_find_intersections(self): """The correct parametric locations are found for flat geometry""" self.failUnlessEqual(self.prm.shape, (4,), "Shape of parametric location array is wrong: " + \ str(self.prm.shape)) N.testing.assert_array_almost_equal(self.prm, N.sqrt(3)) def test_get_normals(self): """A flat geometry manager returns parallel normals""" self.gm.select_rays(N.arange(4)) n = self.gm.get_normals() N.testing.assert_array_equal(n, N.tile(N.c_[[0, 0, 1]], (1, 4))) def test_select_rays_normals(self): """Correct normals when some rays not selected""" self.gm.select_rays(N.r_[1, 3]) n = self.gm.get_normals() N.testing.assert_array_equal(n, N.tile(N.c_[[0, 0, 1]], (1, 2))) def test_inters_points_global(self): """On the basic setup, a flat surface returns correct intersections""" correct_pts = N.zeros((3, 4)) correct_pts[:2, 0] = 1 self.gm.select_rays(N.arange(4)) pts = self.gm.get_intersection_points_global() N.testing.assert_array_equal(pts, correct_pts) def select_rays_inters(self): """Correct intersections when some rays not selected""" correct_pts = N.zeros((3, 2)) correct_pts[:2, 0] = 1 pts = self.gm.get_intersection_points_global() N.testing.assert_array_equal(pts, correct_pts)
class TestFlatGeomManagerInterface(unittest.TestCase): def setUp(self): dir = N.c_[[1, 1, -1], [-1, 1, -1], [-1, -1, -1], [1, -1, -1]] / math.sqrt(3) position = N.c_[[0,0,1], [1,-1,1], [1,1,1], [-1,1,1]] self._bund = RayBundle(position, dir) self.gm = FlatGeometryManager() self.prm = self.gm.find_intersections(N.eye(4), self._bund) def test_find_intersections(self): """The correct parametric locations are found for flat geometry""" self.failUnlessEqual(self.prm.shape, (4,), "Shape of parametric location array is wrong: " + \ str(self.prm.shape)) N.testing.assert_array_almost_equal(self.prm, N.sqrt(3)) def test_get_normals(self): """A flat geometry manager returns parallel normals""" self.gm.select_rays(N.arange(4)) n = self.gm.get_normals() N.testing.assert_array_equal(n, N.tile(N.c_[[0, 0, 1]], (1,4))) def test_select_rays_normals(self): """Correct normals when some rays not selected""" self.gm.select_rays(N.r_[1,3]) n = self.gm.get_normals() N.testing.assert_array_equal(n, N.tile(N.c_[[0, 0, 1]], (1,2))) def test_inters_points_global(self): """On the basic setup, a flat surface returns correct intersections""" correct_pts = N.zeros((3,4)) correct_pts[:2,0] = 1 self.gm.select_rays(N.arange(4)) pts = self.gm.get_intersection_points_global() N.testing.assert_array_equal(pts, correct_pts) def select_rays_inters(self): """Correct intersections when some rays not selected""" correct_pts = N.zeros((3,2)) correct_pts[:2,0] = 1 pts = self.gm.get_intersection_points_global() N.testing.assert_array_equal(pts, correct_pts)
class TestBacksideNormals(unittest.TestCase): def setUp(self): dir = N.c_[[1, 1, 1], [-1, 1, 1], [-1, -1, 1], [1, -1, 1]] / math.sqrt(3) position = N.c_[[0,0,-1], [1,-1,-1], [1,1,-1], [-1,1,-1]] self._bund = RayBundle(position, dir) self.gm = FlatGeometryManager() self.prm = self.gm.find_intersections(N.eye(4), self._bund) def test_get_normals(self): """A translated flat geometry manager returns parallel normals""" self.gm.select_rays(N.arange(4)) n = self.gm.get_normals() N.testing.assert_array_equal(n, N.tile(N.c_[[0, 0, -1]], (1,4)))
class TestBacksideNormals(unittest.TestCase): def setUp(self): dir = N.c_[[1, 1, 1], [-1, 1, 1], [-1, -1, 1], [1, -1, 1]] / math.sqrt(3) position = N.c_[[0, 0, -1], [1, -1, -1], [1, 1, -1], [-1, 1, -1]] self._bund = RayBundle(position, dir) self.gm = FlatGeometryManager() self.prm = self.gm.find_intersections(N.eye(4), self._bund) def test_get_normals(self): """A translated flat geometry manager returns parallel normals""" self.gm.select_rays(N.arange(4)) n = self.gm.get_normals() N.testing.assert_array_equal(n, N.tile(N.c_[[0, 0, -1]], (1, 4)))