(cc grass-psc) On Mon, Jan 11, 2010 at 10:10 AM, Otto Dassau <[email protected]> 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 [1] 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 > > [1] 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 > Otto
Dear Otto, this sounds great. We would need the magical phrase related to RFC2 from you, see http://trac.osgeo.org/grass/wiki/HowToContribute#WriteaccesstotheGRASS-Addons-SVNrepository Then we can activate your account. Best, Markus _______________________________________________ grass-psc mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-psc
