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? On Sun, 2010-04-04 at 17:38 +0200, Markus Neteler wrote: > 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. That is GREAT! Thank you, Nikos _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
