FaceView

class FaceView(nodes)

Bases: NodeView

Represents a view of the faces of a planar graph.

A face (region, are) is a sequence of endpoints. Given a face on the plane, a face is given by the target (second) endpoint when travelling around the face in a CCW faction.

Provides methods for iterating over, accessing, and representing the faces of the graph calculated based on the sphere’s Euler characteristic. A NodeView serves as the underlying structure from which this class derives its functionality.

__init__(nodes)

Methods

__init__(nodes)
arcs(node)
get(k[,d])
isdisjoint(other)	Return True if two sets have a null intersection.
items()
keys()
values()

get(k[, d]) → D[k] if k in D, else d.  d defaults to None.

isdisjoint(other)

Return True if two sets have a null intersection.

items() → a set-like object providing a view on D's items

keys() → a set-like object providing a view on D's keys

values() → an object providing a view on D's values