HalfFace.halfface_adjacent_halfface

HalfFace.halfface_adjacent_halfface(halfface, halfedge)

Return the halfface adjacent to the halfface across the halfedge.

Parameters

• halfface (int) – The identifier of the halfface.

• halfedge (tuple[int, int]) – The identifier of the halfedge.

Returns

int | None – The identifier of the adjacent half-face, or None if halfedge is on the boundary.

Notes

The adjacent face belongs a to one of the cell neighbors over faces of the initial cell. A face and its adjacent face share two common vertices.