Python BoundingBoxTree.compute_closest_entity Examples

Example #1

File: test_bounding_box_tree.py Project: xkp793003821/dolfinx

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

Example #2

File: test_bounding_box_tree.py Project: xkp793003821/dolfinx

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