[GRASS-PSC] Re: [GRASS-dev] Apply for write access to the
neteler at osgeo.org
Mon Jan 11 18:26:55 EST 2010
On Mon, Jan 11, 2010 at 10:10 AM, Otto Dassau <otto.dassau at gmx.de> wrote:
> Dear GRASS developers,
> I would like to apply for write access to the GRASS-Addons-SVN repository.
> I was looking for a faster v.rast.stats implementation to calculate
> univariate statistics based on vector polygons, because I need to do this for
> large raster maps and the current v.rast.stats is just too slow.
> In the GRASS-Addons-SVN repository I found r.univar.zonal  from Markus
> Metz, so I adapted the script v.rast.stats to use r.univar.zonal. The result
> v.rast.stats2 is a lot faster. See test with spearfish below:
> # current v.rast.stats
> time v.rast.stats -c -e vector=fields raster=elevation.10m col=elev
> real 2m6.139s
> user 2m1.616s
> sys 0m4.464s
> # v.rast.stats2 based on r.univar.zonal
> time v.rast.stats_neu -c -e vector=fields raster=elevation.10m col=elev
> real 0m3.249s
> user 0m2.784s
> sys 0m0.444s
>  http://grass.osgeo.org/wiki/GRASS_AddOns#r.univar.zonal
> I would be happy, if the script v.rast.stats2 and r.univar.zonal from Markus
> Metz would finally, after an incubation phase, make it into the sources for
> GRASS future versions.
> thanks a lot
this sounds great. We would need the magical phrase related to RFC2
from you, see
Then we can activate your account.
More information about the grass-psc