[GRASS-user] r.patch for stitching rasters?

[Boris Avdeev]

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


PS Sorry Dylan

On Nov 16, 2007 12:49 PM, Dylan Beaudette <dylan.beaudette at gmail.com> 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
>