ForceDiagram.edge_faces¶
- 
ForceDiagram.edge_faces(u, v)¶ Find the two faces adjacent to an edge.
- Parameters
 u (int) – The identifier of the first vertex.
v (int) – The identifier of the second vertex.
- Returns
 tuple – The identifiers of the adjacent faces. If the edge is on the boundary, one of the identifiers is
None.