[GRASS-dev] matplotlib again

[Yann Chemin]

+1 for d.histogram replacement

another +1 for svg output

2008/7/23 Michael Barton <michael.barton at asu.edu>:
> While waiting for an answer from the developer of one of the wxPython mixins
> on why it doesn't work, I spent a little time looking at MatPlotLib again.
> Sometime back, I'd mentioned this as a potentially useful library to include
> with a Python-enabled GRASS because it can create a rich array of
> high-quality graphs and charts (and even maps). One of the issues raised was
> that it needs to be used within a GUI environment meaning that the GUI can
> do things that the command line can't. Not long ago, while talking with a
> Python-using colleague, I mentioned MatPlotLib and he said, 'of course it
> can be used from the command line to create a graphic file; I do it all the
> time'. So I looked into to it today while recovering from a wisdom tooth
> extraction. Indeed, it can be put into a script to be run from the command
> line and output a normal graphic file, like a *.png. Here is a link on how
> to do it.
> <http://www.dalkescientific.com/writings/diary/archive/2005/04/23/matplotlib_without_gui.html>.
> This cookbook entry is 3 years old. Along with the Agg backend mentioned in
> the cookbook (for png), new backends for MatPlotLib include Cairo (for pdf,
> png, ps, svg, and svgz), dedicated pdf and ps, and dedicated svg--in
> addition to GUI backends for wx, TclTk, and Qt.
> We could use it to replace dedicated GRASS code for creating graphs like
> d.histogram and build it into scripts that now call gnuplot. It's worth
> checking out at <http://matplotlib.sourceforge.net/>. It could be used
> within the GUI of course, but also within scripts to output to graphic
> files.
> Michael
> ____________________
> C. Michael Barton, Professor of Anthropology
> Director of Graduate Studies
> School of Human Evolution & Social Change
> Center for Social Dynamics & Complexity
> Arizona State University
> Phone: 480-965-6262
> Fax: 480-965-7671
> www: <www.public.asu.edu/~cmbarton>
>
>
>
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-- 
Yann Chemin
International Rice Research Institute
Office: http://www.irri.org/gis
Perso: http://www.freewebs.com/ychemin