On Sun, Apr 4, 2010 at 4:39 PM, joel dinis <[email protected]> wrote: > Hello to all, > > I'm currently working > multi-temporal LISS imagery > and I intent to make a raster stack > with 10 raster files to test a method. > With GRASS, I know that is possible to make a > stack with 3 rasters, but it's possible > to do it with more than 3?
Joel, you can use r.series for that: http://grass.osgeo.org/grass64/manuals/html64_user/r.series.html or also r.mapcalc: http://grass.osgeo.org/grass64/manuals/html64_user/r.mapcalc.html The limit is the limit of the operating system. For example, both the hard and soft limits are typically 1024. The soft limit can be changed with e.g. "ulimit -n 1500" but not higher than the hard limit. If it is too low, you can as superuser add an entry in /etc/security/limits.conf % #<domain> <type> <item> <value> % neteler hard nofile 1500 This would raise the hard limit to 1500 file. Be warned that more files open need more RAM. I used this to open the 1460 daily MODIS LST maps of one year in one step in r.series. Markus _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
