FormGraph.find_crossings
- FormGraph.find_crossings()[source]
 Identify all pairs of crossing edges in a network.
- Parameters
 network (
Network) – A network object.- Returns
 list[tuple[tuple[hashable, hashable], tuple[hashable, hashable]]] – A list of edge pairs, with each edge represented by two vertex keys.
Notes
This algorithm assumes that the network lies in the XY plane.