Andranik Hayrapetyan wrote: > Good day,
Good evening/night, > I am very interested in finding the fastest way to merge raster images (or > parts of an image) with GRASS. r.patch ? > Now I am using r.patch, but unfortunately it is very slow for my problem. - GRASS-GIS version and Operating System please? - How slow? How big is the region in which you are operating? ( check with g.region -p) You can/should match the region to the extent of all the raster to-be-merged images, then r.patch, of course. > Is there any other ways to merge raster data in GRASS? Maybe r.mapcalc? > Or may be it will be more fast to use GDAL functions directly? May be GDAL > merge? Sure, you can build "mosaics" using gdal utilities. I guess you already have had a look at <http://www.gdal.org/gdal_merge.html>. > Has anyone done experiments with this kind of issues? r.patch always did/does its job inside GRASS. Regards, Nikos _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
