def test_compute_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([6, 7, 8, 9, 10, 11, 30, 31, 32, 33, 34, 35]), set([12, 13, 14, 15, 16, 17, 36, 37, 38, 39, 40, 41]) ]] points = [numpy.array([0.52, 0.51, 0.3]), numpy.array([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 tree_A = BoundingBoxTree(mesh_A, mesh_A.topology.dim) tree_B = BoundingBoxTree(mesh_B, mesh_B.topology.dim) 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_entity_collision_3d(): reference = [876, 877, 878, 879, 880, 881] p = numpy.array([0.3, 0.3, 0.3]) mesh = UnitCubeMesh(MPI.comm_world, 8, 8, 8) tree = BoundingBoxTree(mesh, mesh.topology.dim) first = tree.compute_first_entity_collision(p, mesh) assert first in reference
def test_compute_first_entity_collision_2d(): reference = [136, 137] p = numpy.array([0.3, 0.3, 0.0]) mesh = UnitSquareMesh(MPI.comm_world, 16, 16) tree = BoundingBoxTree(mesh, mesh.topology.dim) first = tree.compute_first_entity_collision(p, mesh) assert first in reference
def test_compute_first_entity_collision_1d(): reference = [4] p = numpy.array([0.3, 0, 0]) mesh = UnitIntervalMesh(MPI.comm_world, 16) tree = BoundingBoxTree(mesh, mesh.topology.dim) first = tree.compute_first_entity_collision(p, mesh) assert first in reference
def test_compute_entity_collisions_3d(): reference = set([876, 877, 878, 879, 880, 881]) p = numpy.array([0.3, 0.3, 0.3]) mesh = UnitCubeMesh(MPI.comm_world, 8, 8, 8) tree = BoundingBoxTree(mesh, mesh.topology.dim) entities = tree.compute_entity_collisions_mesh(p, mesh) assert set(entities) == reference
def test_compute_entity_collisions_2d(): reference = set([136, 137]) p = numpy.array([0.3, 0.3, 0.0]) mesh = UnitSquareMesh(MPI.comm_world, 16, 16) tree = BoundingBoxTree(mesh, mesh.topology.dim) entities = tree.compute_entity_collisions_mesh(p, mesh) assert set(entities) == reference
def test_compute_closest_entity_3d(): reference = (0, 0.1) p = numpy.array([0.1, 0.05, -0.1]) mesh = UnitCubeMesh(MPI.comm_world, 8, 8, 8) tree = BoundingBoxTree(mesh, mesh.topology.dim) entity, distance = tree.compute_closest_entity(p, mesh) assert entity == reference[0] assert round(distance - reference[1], 7) == 0
def test_compute_first_collision_1d(): reference = {1: [4]} p = numpy.array([0.3, 0, 0]) mesh = UnitIntervalMesh(MPI.comm_world, 16) for dim in range(1, 2): tree = BoundingBoxTree(mesh, dim) first = tree.compute_first_collision(p) assert first in reference[dim]
def test_compute_closest_entity_2d(): reference = (1, 1.0) p = numpy.array([-1.0, 0.01, 0.0]) mesh = UnitSquareMesh(MPI.comm_world, 16, 16) tree = BoundingBoxTree(mesh, mesh.topology.dim) entity, distance = tree.compute_closest_entity(p, mesh) assert entity == reference[0] assert round(distance - reference[1], 7) == 0
def test_compute_collisions_point_1d(): reference = {1: set([4])} p = numpy.array([0.3, 0, 0]) mesh = UnitIntervalMesh(MPI.comm_world, 16) for dim in range(1, 2): tree = BoundingBoxTree(mesh, mesh.topology.dim) entities = tree.compute_collisions_point(p) assert set(entities) == reference[dim]
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 = [numpy.array([0.52, 0.51, 0.0]), numpy.array([0.9, -0.9, 0.0])] 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 tree_A = BoundingBoxTree(mesh_A, mesh_A.topology.dim) tree_B = BoundingBoxTree(mesh_B, mesh_B.topology.dim) 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_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 = [numpy.array([0.52, 0, 0]), numpy.array([0.9, 0, 0])] 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(mesh_A, mesh_A.topology.dim) tree_B = BoundingBoxTree(mesh_B, mesh_B.topology.dim) 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_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 = numpy.array([0.3, 0.3, 0.0]) mesh = UnitSquareMesh(MPI.comm_world, 16, 16) for dim in range(1, 3): tree = BoundingBoxTree(mesh, dim) first = tree.compute_first_collision(p) # FIXME: Facet test is excluded because it mistakenly relies in # the facet indices if dim != mesh.topology.dim - 1: assert first in reference[dim]
def test_compute_collisions_point_2d(): # reference = {1: set([226]), # 2: set([136, 137])} p = numpy.array([0.3, 0.3, 0.0]) mesh = UnitSquareMesh(MPI.comm_world, 16, 16) for dim in range(1, 3): tree = BoundingBoxTree(mesh, mesh.topology.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_manifold_point_search(): # Simple two-triangle surface in 3d vertices = [(0.0, 0.0, 1.0), (1.0, 1.0, 1.0), (1.0, 0.0, 0.0), (0.0, 1.0, 0.0)] cells = [(0, 1, 2), (0, 1, 3)] mesh = Mesh(MPI.comm_world, CellType.triangle, numpy.array(vertices, dtype=numpy.float64), numpy.array(cells, dtype=numpy.int32), [], cpp.mesh.GhostMode.none) bb = BoundingBoxTree(mesh, mesh.topology.dim) p = numpy.array([0.5, 0.25, 0.75]) assert bb.compute_first_entity_collision(p, mesh) == 0 p = numpy.array([0.25, 0.5, 0.75]) assert bb.compute_first_entity_collision(p, mesh) == 1
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 = numpy.array([0.3, 0.3, 0.3]) mesh = UnitCubeMesh(MPI.comm_world, 8, 8, 8) tree = BoundingBoxTree(mesh, mesh.topology.dim) for dim in range(1, 4): 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_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 = numpy.array([0.3, 0.3, 0.3]) mesh = UnitCubeMesh(MPI.comm_world, 8, 8, 8) for dim in range(1, 4): tree = BoundingBoxTree(mesh, dim) first = tree.compute_first_collision(p) # FIXME: Face and test is excluded because it mistakenly relies # in the facet indices tdim = mesh.topology.dim if dim != tdim - 1 and dim != tdim - 2: assert first in reference[dim]