def test_edgedata_io(mesh):
mesh.update_default_edge_attributes({'index': 0})
for index, (u, v) in enumerate(mesh.edges()):
mesh.edge_attribute((u, v), 'index', index)
other = HalfEdge.from_data(mesh.data)
assert all(
other.edge_attribute(edge, 'index') == index
for index, edge in enumerate(other.edges()))
def test_default_edge_attributes():
he = HalfEdge(name='test', default_edge_attributes={'a': 1, 'b': 2})
for edge in he.vertices():
assert he.edge_attribute(edge, name='a') == 1
assert he.edge_attribute(edge, name='b') == 2
he.edge_attribute(edge, name='a', value=3)
assert he.edge_attribute(edge, name='a') == 3
def test_default_vertex_attributes():
he = HalfEdge(name='test', default_vertex_attributes={'a': 1, 'b': 2})
for vertex in he.vertices():
assert he.vertex_attribute(vertex, name='a') == 1
assert he.vertex_attribute(vertex, name='b') == 2
he.vertex_attribute(vertex, name='a', value=3)
assert he.vertex_attribute(vertex, name='a') == 3
def mesh():
vertices = [None, None, None, None]
faces = [[0, 1, 2], [0, 3, 1]]
he = HalfEdge()
for vertex in vertices:
he.add_vertex()
for face in faces:
he.add_face(face)
return he
def mesh():
vertices = [
[1.0, 0.0, 0.0],
[1.0, 2.0, 0.0],
[0.0, 1.0, 0.0],
[2.0, 1.0, 0.0]
]
faces = [
[0, 1, 2],
[0, 3, 1]
]
he = HalfEdge()
for vertex in vertices:
he.add_vertex(x=vertex[0], y=vertex[1], z=vertex[2])
for face in faces:
he.add_face(face)
return he