HalfEdge.halfedge_before
- HalfEdge.halfedge_before(edge)[source]
Find the halfedge before the given halfedge in the same face.
- Parameters:
- edgetuple[int, int]
The identifier of the starting halfedge.
- Returns:
- tuple[int, int]
The previous halfedge.
Find the halfedge before the given halfedge in the same face.
The identifier of the starting halfedge.
The previous halfedge.