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_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 = [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_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_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_entity_collisions_bb_mesh(
tree_B, mesh_A, mesh_B)
assert set(entities_A) == references[i][0]
assert set(entities_B) == references[i][1]