[GRASS-user] improve v.rast.stats speed?

[Jose Gómez-Dans]

Hi,

On Thursday 19 February 2009 13:20:52 G. Allegri wrote:
> I've just tried Starspan but it's performance is still too slow. I've
> let it run for 15 minutes...

I think I've seen your name in the scipy mailing list. My take on this is to 
rasterize my vector data with gdal_rasterize (you can have a look at the 
rasterisation code and see how it works, in case you need to eg buffer your 
vector data), load it up in python, load my dataset in python, and calculate 
whatever stats with scipy+numpy. If  you look at this thread, you'll find it 
is very fast: 
<http://article.gmane.org/gmane.comp.python.scientific.user/19412>.

Hope that helps!
Jose

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