after importing try setting the computation bounds with e.g. g.region rast=studyarea
raster mapcalc and output work on the current region settings. Hamish --- On Wed, 6/17/09, Milton Cezar Ribeiro <miltinho.astrona...@gmail.com> wrote: > From: Milton Cezar Ribeiro <miltinho.astrona...@gmail.com> > Subject: Re: [GRASS-user] Problem exporing rasters > To: "Richard Feldman" <richard.feld...@mail.mcgill.ca> > Cc: "grass-user@lists.osgeo.org" <grass-user@lists.osgeo.org> > Date: Wednesday, June 17, 2009, 1:27 AM > Hi Richard, > > Send the outputs of the command below to the > list: > > g.region -p > r.info studyarea > r.info elevation > r.info newelevation > > This will help the helpers :-) > > Bests, > > milton > brazil=toronto > > 2009/6/16 Richard Feldman <richard.feld...@mail.mcgill.ca> > > Hi, > > I have two rasters. One is an elevation dataset from > Worldclim, imported into GRASS using r.in.bin. The other is > a MODIS raster, which I had previously worked on in ArcGIS. > Consequently, I imported this raster (.adf) into GRASS using > r.in.gdal. Both rasters display and manipulate properly in > GRASS. I used r.mapcalc to mask the raster > > > newelevation=if(studya...@mapset, elevat...@mapset) > > and wished to export this new raster as an ascii grid. When > using either r.out.gdal or r.out.arc, the exported file is > only 1KB and does not contain any data e.g. elevations). > (Again, this new raster displays fine in GRASS). With > r.out.gdal, I have tried both .grd and .tif formats as well > as “byte,” “int16,” “uint16” and “int32” > file types. Every time the export takes 0 sec and produces a > 1-2KB file. > > > I have tried exporting elevation.dem from the spearfish > dataset and it exports fine. I'm using GRASS6-SVN on > Windows Vista. > > What am I doing wrong? > > > Richard > Feldman_______________________________________________ > > grass-user mailing list > grass-user@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/grass-user > > > > > -----Inline Attachment Follows----- > > _______________________________________________ > grass-user mailing list > grass-user@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/grass-user > _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
