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I want to make voronoi treemaps for statistics data, like
newsgraphy
Do you know how I can do that in Perl, PHP, Ruby, or Python?
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The latest version (2.0) of Macrofocus TreeMap has the Voronoi algorithm as an option, among others.
Nice demos and graphics for Python: http://home.scarlet.be/zoetrope/voronoi/ (Archived copy at wayback)
James Tauber is writing a tutorial that uses JavaScript and Fortune's algorithm to draw a Voronoi diagram in a
canvaselement: Voronoi Canvas TutorialIt's not complete yet (he's at part 3 of 4) but there's enough there to complete it I think.
Math::Geometry::Voronoi
the other Python answer seems to point at a raster only solution. I am also interested in solving this problem (in Python) and I think the following script could form a usable starting point:
http://www.oxfish.com/python/voronoi.py
(Archived copy at wayback)
Just found this page. I've been working on a Voronoi demo applet using Javascript/canvas, after translating into Javascript a C# version of Steven Fortune's algorithm by Benjamin Dittes (available at Code Project, see "Fortune's Voronoi algorithm implemented in C#"). Here is the page which include Fortune's Voronoi algorithm in Javascript: http://www.raymondhill.net/voronoi/voronoi.php This is a first iteration, I plan to adapt it further to be better suited to Javascript. Hope this helps.