[GRASS-dev] r.random: now with optional cover map parameter

Dylan Beaudette dylan.beaudette at gmail.com
Tue Oct 16 12:26:58 EDT 2007

On Tuesday 16 October 2007, Markus Neteler wrote:
> Hi,
> since v.what.rast is (for me) extremely slow, I have added
> cover map support to r.random. You can now do random sampling
> (e.g., elevation) and sample at the same time for the random
> locations values from a second raster map (e.g., landuse).
> The result is only stored when using vector points output.
> I use it with -d flag, to sample elevation as 3D vector map
> with MODIS Land Surface Temperatures as second data column
> in the resulting vector map.
> In 6.3-CVS.
> Markus
> PS: v.what.rast still running on just 300k points while I
>     implemented above :-) Anyone who could make v.what.rast faster?

Hmmm.. not sure, but Starspan always works for me, and is very fast!


Dylan Beaudette
Soil Resource Laboratory
University of California at Davis

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