Cell.halfedge_face

Cell.halfedge_face(u, v)

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 or 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.

Examples

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