#!/usr/bin/env python """ Write first 20 graphs from the graph atlas as graphviz dot files Gn.dot where n=0,19. Requires pygraphviz and graphviz. """ # Author: Aric Hagberg (hagberg@lanl.gov) # Date: 2005-05-19 14:23:02 -0600 (Thu, 19 May 2005) # Copyright (C) 2006-2016 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 from networkx.generators.atlas import * from pygraphviz import * atlas = graph_atlas_g()[0:20] for G in atlas: print("graph %s has %d nodes with %d edges" %(G.name,NX.number_of_nodes(G),NX.number_of_edges(G))) A = nx.nx_agraph.to_agraph(G) A.graph_attr['label'] = G.name # set default node attributes A.node_attr['color'] = 'red' A.node_attr['style'] = 'filled' A.node_attr['shape'] = 'circle' A.write(G.name + '.dot')