[GRASS-dev] Apply for write access to the GRASS-Addons-SVN repositor

[Otto Dassau]

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