On Jun 15, 10:38 am, William Stein <wst...@gmail.com> wrote:
> On Mon, Jun 15, 2009 at 12:55 PM, Dominique
> Manchon<manc...@math.univ-bpclermont.fr> wrote:
>
> > Hello!
>
> > I'm a newcomer into Sage and Python. When I want to draw some
> > graphical representation of graphs I get problems
>
> Despite years of work, drawing graphs in Sage is still pretty broken.
Graph drawing works well enough for me, when I just want a quick
idea of what's going on. If I need a well drawn graph, I just export
to Graphviz. Graphviz is open source but I seem to recall that its
license is not Sage compatible. It is, nonetheless, freely available.
Here, for example, is the Cayley graph of the alternating group A5:
A = AlternatingGroup(5)
G = Graph(A.cayley_graph())
s = G.graphviz_string()
f = open('graphfile.dot', 'w')
f.write(s)
f.close()
If you now open graphfile.dot in Graphviz, you should get a
an interpretable version of quite a complicated graph.
Mark McClure
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