smesh.py 文件源码

def from_pydata(cls, faces):

        loop_total = np.empty(len(faces), dtype=np.uint32)
        loop_start = np.zeros(len(faces), dtype=np.uint32)
        loop_total[:] = tuple(map(len, faces))
        loop_start[1:] = loop_total[:-1].cumsum()
        vertex_indices = np.fromiter(chain.from_iterable(faces),
                                     dtype=np.uint32,)
                                     #count=loop_start.sum())
        return cls(loop_start, loop_total, vertex_indices)