def test_compute_first_collision_2d(): # FIXME: This test should not use facet indices as there are no guarantees # on how DOLFIN numbers facets reference = {1: [226], 2: [136, 137]} p = Point(0.3, 0.3) mesh = UnitSquareMesh(MPI.comm_world, 16, 16) for dim in range(1, 3): tree = BoundingBoxTree(mesh.geometry.dim) tree.build_mesh(mesh, dim) first = tree.compute_first_collision(p) # FIXME: Facet test is excluded because it mistakingly relies in the # facet indices if dim != mesh.topology.dim - 1: assert first in reference[dim] # FIXME: remove after Mesh is wrapped in Python tree_cpp = mesh.bounding_box_tree() tree = BoundingBoxTree() tree._cpp_object = tree_cpp first = tree.compute_first_collision(p) assert first in reference[mesh.topology.dim]
def test_compute_collisions_tree_1d(): references = [[ set([8, 9, 10, 11, 12, 13, 14, 15]), set([0, 1, 2, 3, 4, 5, 6, 7]) ], [set([14, 15]), set([0, 1])]] points = [Point(0.52), Point(0.9)] for i, point in enumerate(points): mesh_A = UnitIntervalMesh(MPI.comm_world, 16) mesh_B = UnitIntervalMesh(MPI.comm_world, 16) bgeom = mesh_B.geometry.points bgeom += point[0] tree_A = BoundingBoxTree(1) tree_A.build_mesh(mesh_A, 1) tree_B = BoundingBoxTree(1) tree_B.build_mesh(mesh_B, 1) entities_A, entities_B = tree_A.compute_collisions_bb(tree_B) assert set(entities_A) == references[i][0] assert set(entities_B) == references[i][1]
def test_compute_first_collision_3d(): # FIXME: This test should not use facet indices as there are no guarantees # on how DOLFIN numbers facets reference = { 1: [1364], 2: [1967, 1968, 1970, 1972, 1974, 1976], 3: [876, 877, 878, 879, 880, 881] } p = Point(0.3, 0.3, 0.3) mesh = UnitCubeMesh(MPI.comm_world, 8, 8, 8) for dim in range(1, 4): tree = BoundingBoxTree(mesh.geometry.dim) tree.build_mesh(mesh, dim) first = tree.compute_first_collision(p) # FIXME: Face and test is excluded because it mistakingly # relies in the facet indices tdim = mesh.topology.dim if dim != tdim - 1 and dim != tdim - 2: assert first in reference[dim] # FIXME: remove after Mesh is wrapped in Python tree_cpp = mesh.bounding_box_tree() tree = BoundingBoxTree() tree._cpp_object = tree_cpp first = tree.compute_first_collision(p) assert first in reference[mesh.topology.dim]
def test_compute_entity_collisions_tree_3d(): references = [[ set([18, 19, 20, 21, 22, 23, 42, 43, 44, 45, 46, 47]), set([0, 1, 2, 3, 4, 5, 24, 25, 26, 27, 28, 29]) ], [set([7, 8, 30, 31, 32]), set([15, 16, 17, 39, 41])]] points = [Point(0.52, 0.51, 0.3), Point(0.9, -0.9, 0.3)] for i, point in enumerate(points): mesh_A = UnitCubeMesh(MPI.comm_world, 2, 2, 2) mesh_B = UnitCubeMesh(MPI.comm_world, 2, 2, 2) bgeom = mesh_B.geometry.points bgeom += point.array() tree_A = BoundingBoxTree(3) tree_A.build_mesh(mesh_A, 3) tree_B = BoundingBoxTree(3) tree_B.build_mesh(mesh_B, 3) entities_A, entities_B = tree_A.compute_entity_collisions_bb_mesh( tree_B, mesh_A, mesh_B) assert set(entities_A) == references[i][0] assert set(entities_B) == references[i][1]
def test_compute_entity_collisions_tree_2d(): references = [[ set([20, 21, 22, 23, 28, 29, 30, 31]), set([0, 1, 2, 3, 8, 9, 10, 11]) ], [set([6]), set([25])]] points = [Point(0.52, 0.51), Point(0.9, -0.9)] for i, point in enumerate(points): mesh_A = UnitSquareMesh(MPI.comm_world, 4, 4) mesh_B = UnitSquareMesh(MPI.comm_world, 4, 4) bgeom = mesh_B.geometry.points bgeom += point.array()[:2] tree_A = BoundingBoxTree(2) tree_A.build_mesh(mesh_A, 2) tree_B = BoundingBoxTree(2) tree_B.build_mesh(mesh_B, 2) entities_A, entities_B = tree_A.compute_entity_collisions_bb_mesh( tree_B, mesh_A, mesh_B) assert set(entities_A) == references[i][0] assert set(entities_B) == references[i][1]
def test_compute_entity_collisions_3d(): reference = set([876, 877, 878, 879, 880, 881]) p = Point(0.3, 0.3, 0.3) mesh = UnitCubeMesh(MPI.comm_world, 8, 8, 8) tree = BoundingBoxTree(mesh.geometry.dim) tree.build_mesh(mesh, mesh.topology.dim) entities = tree.compute_entity_collisions_mesh(p, mesh) assert set(entities) == reference
def test_compute_collisions_point_1d(): reference = {1: set([4])} p = Point(0.3) mesh = UnitIntervalMesh(MPI.comm_world, 16) for dim in range(1, 2): tree = BoundingBoxTree(mesh.geometry.dim) tree.build_mesh(mesh, dim) entities = tree.compute_collisions_point(p) assert set(entities) == reference[dim]
def test_compute_collisions_point_2d(): # reference = {1: set([226]), # 2: set([136, 137])} p = Point(0.3, 0.3) mesh = UnitSquareMesh(MPI.comm_world, 16, 16) for dim in range(1, 3): tree = BoundingBoxTree(mesh.geometry.dim) tree.build_mesh(mesh, dim) entities = tree.compute_collisions_point(p) for e in entities: ent = MeshEntity(mesh, dim, e) mp = ent.midpoint() x = (mp[0], mp[1]) print("test: {}".format(x))
def test_compute_first_entity_collision_3d(): reference = [876, 877, 878, 879, 880, 881] p = Point(0.3, 0.3, 0.3) mesh = UnitCubeMesh(MPI.comm_world, 8, 8, 8) tree = BoundingBoxTree(mesh.geometry.dim) tree.build_mesh(mesh, mesh.topology.dim) first = tree.compute_first_entity_collision(p, mesh) assert first in reference # FIXME: remove after Mesh is wrapped in Python tree_cpp = mesh.bounding_box_tree() tree = BoundingBoxTree() tree._cpp_object = tree_cpp first = tree.compute_first_entity_collision(p, mesh) assert first in reference
def test_compute_first_collision_1d(): reference = {1: [4]} p = Point(0.3) mesh = UnitIntervalMesh(MPI.comm_world, 16) for dim in range(1, 2): tree = BoundingBoxTree(mesh.geometry.dim) tree.build_mesh(mesh, dim) first = tree.compute_first_collision(p) assert first in reference[dim] # FIXME: remove after Mesh is wrapped in Python tree_cpp = mesh.bounding_box_tree() tree = BoundingBoxTree() tree._cpp_object = tree_cpp first = tree.compute_first_collision(p) assert first in reference[mesh.topology.dim]
def test_compute_entity_collisions_2d(): reference = set([136, 137]) p = Point(0.3, 0.3) mesh = UnitSquareMesh(MPI.comm_world, 16, 16) tree = BoundingBoxTree(mesh.geometry.dim) tree.build_mesh(mesh, mesh.topology.dim) entities = tree.compute_entity_collisions_mesh(p, mesh) assert set(entities) == reference # FIXME: remove after Mesh is wrapped in Python tree_cpp = mesh.bounding_box_tree() tree = BoundingBoxTree() tree._cpp_object = tree_cpp entities = tree.compute_entity_collisions_mesh(p, mesh) assert set(entities) == reference
def test_compute_collisions_point_3d(): reference = { 1: set([1364]), 2: set([1967, 1968, 1970, 1972, 1974, 1976]), 3: set([876, 877, 878, 879, 880, 881]) } p = Point(0.3, 0.3, 0.3) mesh = UnitCubeMesh(MPI.comm_world, 8, 8, 8) for dim in range(1, 4): tree = BoundingBoxTree(mesh.geometry.dim) tree.build_mesh(mesh, dim) entities = tree.compute_collisions_point(p) # FIXME: Face and edges tests are excluded because test # mistakingly relies on the face and edge indices tdim = mesh.topology.dim if dim != tdim - 1 and dim != tdim - 2: assert set(entities) == reference[dim]
def test_compute_closest_entity_3d(): reference = (0, 0.1) p = Point(0.1, 0.05, -0.1) mesh = UnitCubeMesh(MPI.comm_world, 8, 8, 8) tree = BoundingBoxTree(mesh.geometry.dim) tree.build_mesh(mesh, mesh.topology.dim) entity, distance = tree.compute_closest_entity(p, mesh) assert entity == reference[0] assert round(distance - reference[1], 7) == 0 # FIXME: remove after Mesh is wrapped in Python tree_cpp = mesh.bounding_box_tree() tree = BoundingBoxTree() tree._cpp_object = tree_cpp entity, distance = tree.compute_closest_entity(p, mesh) assert entity == reference[0] assert round(distance - reference[1], 7) == 0