On Thu, Aug 20, 2009 at 2:18 AM, Nathann Cohen<nathann.co...@gmail.com> wrote:
>
> Hello !!!
>
> Starting from a kind of troll related to the next-to-be tour for
> Graphs in Sage ( I wanted to color the map of western europe, but the
> majority of Sage's users do not live there ), I tried to build a graph
> of the whole world by using your dear CIA's data ( available freely on
> their website )
>
> Do you think it would be interesting to add it to the graph generators
> in Sage ?
Yes.
> It could be available as graphs.WorldMap() :-)
Yes.
>
> If so, I have a small problem : how to include it ? I generated it by
> parsing again and again several files, then building the final graph
> through Python, but the only way I have now to share this graph is to
> write it by g.write().
Why not just include a pickle of it? Make sure there is a doctest
that involves creating it, so that we can't release a version of Sage
if this pickle breaks.
And if you say you can't pickle it, then something is wrong with
pickling graphs, and we have a bigger problem to worry about!
In case you don't know, you can use pickle as follows:
sage: save(G, 'g.sobj')
sage: G = load('g.sobj')
William
>
> This Graph contains labels for the countries ( their names ) but also
> their positions...
>
> Nathann
> >
>
--
William Stein
Associate Professor of Mathematics
University of Washington
http://wstein.org
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