Yes, though I couldn't figure out how to make gdal_merge output NULLs instead of 0s (and what formats support NULLs?). But anyway, you think that this is normal performance?
On Nov 16, 2007 2:08 PM, Dylan Beaudette <[EMAIL PROTECTED]> wrote: > On Friday 16 November 2007, Boris Avdeev wrote: > > > Now, when you asking... > > Now it is this: > > > > projection: 3 (Latitude-Longitude) > > zone: 0 > > datum: wgs84 > > ellipsoid: wgs84 > > north: 48:50:24.701676N > > south: 34:38:56.353164N > > west: 45:57:00.735336E > > east: 55:00:56.276712E > > nsres: 0:01:00.033312 > > ewres: 0:00:59.991804 > > rows: 851 > > cols: 544 > > cells: 462944 > > > > But I believe that at the time I started r.patch it was this: > > > > projection: 3 (Latitude-Longitude) > > zone: 0 > > datum: wgs84 > > ellipsoid: wgs84 > > north: 46N > > south: 35N > > west: 35E > > east: 55E > > nsres: 0:00:03 > > ewres: 0:00:03 > > rows: 13200 > > cols: 24000 > > cells: 316800000 > > > > since I was trying to preserve resolution of original srtms. > > > > Boris > > > > That is pretty big, but not impossibly big. Have you considered something like > gdal_merge.py for merging the files outside of GRASS ? > > cheers, > > Dylan > > > > > > PS Sorry Dylan > > > > On Nov 16, 2007 12:49 PM, Dylan Beaudette <[EMAIL PROTECTED]> wrote: > > > On Friday 16 November 2007, Boris Avdeev wrote: > > > > Hello grass (ab)users! > > > > I am using r.patch to merge 200 1 degree, 3 seconds resolution srtm's > > > > (1-2 Mb each). After 24 hours of real time and 20 hours of Xeon > > > > processor time I have 39% completed! My guess that this task shouldn't > > > > take so long. Is r.patch a wrong tool to do this thing? Or is it a > > > > bug? I am using grass-6.3.cvs. > > > > > > > > Thanks, > > > > Boris > > > > > > check region extents and resolution ... can you send the output from > > > g.region -p ? > > > > > > Dylan > > > > > > > > > -- > > > Dylan Beaudette > > > Soil Resource Laboratory > > > http://casoilresource.lawr.ucdavis.edu/ > > > University of California at Davis > > > 530.754.7341 > > > > -- > > Dylan Beaudette > Soil Resource Laboratory > http://casoilresource.lawr.ucdavis.edu/ > University of California at Davis > 530.754.7341 > _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
