graphlow.core.MeshTopology.point_face_incidence

MeshTopology.point_face_incidence(layout: Literal['csr', 'coo'] = 'coo') → T

Materialize point-face incidence (PF).

Parameters:

layoutLiteral[“csr”, “coo”]

Layout of the sparse matrix. Default is “coo”.

Returns:

T

Backend tensor of shape (n_points, n_faces). dtype is float with the precision set by the backend.

Notes

Here, “face” means a face of a volume mesh. This method does not apply to surface meshes. For surface meshes, use point_cell_incidence() instead.