node_boundary(G, nbunch1, nbunch2=None)
The node boundary of a set S with respect to a set T is the set of nodes v in T such that for some u in S, there is an edge joining u to v. If T is not specified, it is assumed to be the set of all nodes not in S.
Any element of nbunch
that is not in the graph G will be ignored.
:None:None:`nbunch1` and :None:None:`nbunch2` are usually meant to be disjoint, but in the interest of speed and generality, that is not required here.
Iterable of nodes in the graph representing the set of nodes whose node boundary will be returned. (This is the set S from the definition above.)
Iterable of nodes representing the target (or "exterior") set of nodes. (This is the set T from the definition above.) If not specified, this is assumed to be the set of all nodes in G not in :None:None:`nbunch1`.
The node boundary of :None:None:`nbunch1` with respect to :None:None:`nbunch2`.
Returns the node boundary of :None:None:`nbunch1`.
Hover to see nodes names; edges to Self not shown, Caped at 50 nodes.
Using a canvas is more power efficient and can get hundred of nodes ; but does not allow hyperlinks; , arrows or text (beyond on hover)
SVG is more flexible but power hungry; and does not scale well to 50 + nodes.
All aboves nodes referred to, (or are referred from) current nodes; Edges from Self to other have been omitted (or all nodes would be connected to the central node "self" which is not useful). Nodes are colored by the library they belong to, and scaled with the number of references pointing them