Pygraphviz AttributesΒΆ

An example showing how to use the interface to the pygraphviz AGraph class to convert to and from graphviz.

Also see the pygraphviz documentation and examples at http://pygraphviz.github.io/

# Author: Aric Hagberg (hagberg@lanl.gov)

#    Copyright (C) 2006-2018 by
#    Aric Hagberg <hagberg@lanl.gov>
#    Dan Schult <dschult@colgate.edu>
#    Pieter Swart <swart@lanl.gov>
#    All rights reserved.
#    BSD license.

import networkx as nx

# networkx graph
G = nx.Graph()
# ad edges with red color
G.add_edge(1, 2, color='red')
G.add_edge(2, 3, color='red')
# add nodes 3 and 4
G.add_node(3)
G.add_node(4)

# convert to a graphviz agraph
A = nx.nx_agraph.to_agraph(G)

# write to dot file
A.write('k5_attributes.dot')

# convert back to networkx Graph with attributes on edges and
# default attributes as dictionary data
X = nx.nx_agraph.from_agraph(A)
print("edges")
print(list(X.edges(data=True)))
print("default graph attributes")
print(X.graph)
print("node node attributes")
print(X.node)

Total running time of the script: ( 0 minutes 0.000 seconds)

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