Can I run the GRASS command 'r.patch' on raster files which are not "loaded" into the current GRASS session? That is, rasters which are simply in my folder but not in a GRASS location & mapset?


No, to work with raster files in GRASS you have to import the rasters with r.in.gdal or you can link external raster files with r.external:

r.external input=/path/to/raster1.tif output=raster1
r.external input=/path/to/raster2.tif output=raster2
g.region rast=raster1,raster2 -p
r.patch input=raster1,raster2 output=raster_patched

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.