HalfEdge.halfedge_face

HalfEdge.halfedge_face(u, v)[source]

Find the face corresponding to a halfedge.

Parameters

  • u (int) – The identifier of the first vertex.

  • v (int) – The identifier of the second vertex.

Returns

int | None – The identifier of the face corresponding to the halfedge. None, if the halfedge is on the outside of a boundary.

Raises

KeyError – If the halfedge does not exist.