def from_obj(cls, filepath, precision='3f'):
network = cls()
obj = OBJ(filepath, precision=precision)
vertices = obj.parser.vertices
edges = obj.parser.lines
for i, (x, y, z) in enumerate(vertices):
network.add_vertex(i, x=x, y=y, z=z)
for u, v in edges:
network.add_edge(u, v)
return network
def from_obj(cls, filepath):
obj = OBJ(filepath)
vertices = obj.parser.vertices
faces = obj.parser.faces
groups = obj.parser.groups
cells = []
for name in groups:
group = groups[name]
cell = []
for item in group:
if item[0] != 'f':
continue
face = faces[item[1]]
cell.append(face)
cells.append(cell)
return cls.from_vertices_and_cells(vertices, cells)
def from_obj(cls, filepath, **kwargs):
"""Initialise a mesh from the data described in an obj file.
Parameters:
filepath (str): The path to the obj file.
kwargs (dict) : Remaining named parameters. Default is an empty :obj:`dict`.
Returns:
Mesh: A ``Mesh`` of class ``cls``.
>>> mesh = Mesh.from_obj('path/to/file.obj')
"""
mesh = cls()
mesh.attributes.update(kwargs)
obj = OBJ(filepath)
vertices = obj.parser.vertices
faces = obj.parser.faces
for x, y, z in vertices:
mesh.add_vertex(x=x, y=y, z=z)
for face in faces:
mesh.add_face(face)
return mesh