[GRASS-PSC] Re: [GRASS-dev] Apply for write access to the
GRASS-Addons-SVN repositor
Otto Dassau
otto.dassau at gmx.de
Tue Jan 12 02:19:35 EST 2010
Hi,
Am Tue, 12 Jan 2010 00:26:55 +0100
schrieb Markus Neteler <neteler at osgeo.org>:
> (cc grass-psc)
>
> 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 [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
I read and accept the "Legal aspects of code contributions (RFC2)".
my OSGEO ID is dassau
thanks a lot
Otto
> Then we can activate your account.
>
> Best,
> Markus
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