[Routing] OSM demo of Python-Graphserver

[Brandon Martin-Anderson]

Hello ladies and gentlegerms,

Here is a video of a growing shortet path tree from an intersection just
south of the University Bridge in Seattle toward all points in North
Seattle, using Graphserver and OSM street data; visualization using
Processing. Nino Walker and I have made some great progress in writing a set
of Python wrappers for the Graphserver library, making things like this
relatively straightforward to implement. While pre and post-processing of
the graph took several seconds, and the process of making this graphic is
not completely automated, the Graph.shortest_path_tree() function that
produced this graph returned in 0.03 seconds.

http://www.flickr.com/photos/ewedistrict/2634132161/

If anybody's interested in taking a peek, the graphserver python wrappers
are in the 'nino' branch of the Graphserver repository.

-B
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