network_complement

compas.datastructures.network_complement(network, cls=None)

Generate the complement network of a network.

The complement of a graph G is the graph H with the same vertices but whose edges consists of the edges not present in the graph G [1].

Parameters:

networkcompas.datastructures.Network

A network.

Returns:

compas.datastructures.Network

The complement network.

References

[1]

Wolfram MathWorld. Graph complement. Available at: http://mathworld.wolfram.com/GraphComplement.html.

Examples

>>> import compas
>>> from compas.datastructures import Network
>>> from compas.datastructures import network_complement
>>> network = Network.from_obj(compas.get('lines.obj'))
>>> complement = network_complement(network)
>>> any(complement.has_edge(u, v, directed=False) for u, v in network.edges())
False