def test_empty_mesh(self):
"""
What happens when we call functions on an empty mesh?
"""
mesh = Mesh(np.zeros((0, 3), np.float32), np.zeros((0, 3), int))
mesh.simplify(1.0)
assert len(mesh.vertices_zyx) == len(mesh.normals_zyx) == len(
mesh.faces) == 0
mesh.simplify(0.1)
assert len(mesh.vertices_zyx) == len(mesh.normals_zyx) == len(
mesh.faces) == 0
mesh.laplacian_smooth(0)
assert len(mesh.vertices_zyx) == len(mesh.normals_zyx) == len(
mesh.faces) == 0
mesh.laplacian_smooth(2)
assert len(mesh.vertices_zyx) == len(mesh.normals_zyx) == len(
mesh.faces) == 0
mesh.stitch_adjacent_faces()
assert len(mesh.vertices_zyx) == len(mesh.normals_zyx) == len(
mesh.faces) == 0
mesh.serialize(fmt='obj')
assert len(mesh.vertices_zyx) == len(mesh.normals_zyx) == len(
mesh.faces) == 0
mesh.serialize(fmt='drc')
assert len(mesh.vertices_zyx) == len(mesh.normals_zyx) == len(
mesh.faces) == 0
mesh.compress()
concatenate_meshes((mesh, mesh))
assert len(mesh.vertices_zyx) == len(mesh.normals_zyx) == len(
mesh.faces) == 0
def process_sv(decimation, decimation_lib, max_sv_vertices, output_format, sv: int, mesh: Mesh):
try:
orig_vertices = len(mesh.vertices_zyx)
if orig_vertices == 0:
final_decimation = 1.0
else:
final_decimation = min(decimation, max_sv_vertices / len(mesh.vertices_zyx))
if decimation_lib == "openmesh":
mesh.simplify_openmesh(final_decimation)
elif decimation_lib == "fq-in-memory":
mesh.simplify(decimation, True)
elif decimation_lib == "fq-via-disk":
mesh.simplify(decimation, False)
else:
raise AssertionError()
final_vertices = len(mesh.vertices_zyx)
effective_decimation = final_vertices / orig_vertices
mesh_bytes = mesh.serialize(fmt=output_format)
return sv, orig_vertices, final_vertices, final_decimation, effective_decimation, mesh_bytes
except Exception as ex:
raise RuntimeError(f"Failed processing SV {sv}: {type(ex)}") from ex
