Michael Barton wrote: > >> It is unclear how r.external.out works. Does it make a GDAL-compatible > >> file appear as a GRASS raster in a mapset? If so, shouldn't this be > >> r.external.in? (i.e., it makes an external raster usable by GRASS) > > > > r.external.out causes new raster maps to be created as files via GDAL. > > > > Whereas r.external turns a specific file into a GRASS raster map, > > r.external.out enables a mode whereby all new rasters are created as > > files via GDAL. > > > > It creates a key-value file named "GDAL" in the mapset directory > > containing various parameters (output directory, file format, creation > > parameters). If this file is present, Rast_open_*_new() and > > Rast_put_*_row() go via GDAL. > > So the files can be opened and used subsequently as GRASS files even > though they are created in a non-GRASS format (e.g., geotiff)?
Yes. Files created this way are automatically linked as GRASS rasters as if by r.external. -- Glynn Clements <[email protected]> _______________________________________________ grass-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-dev
