Eric: > I found a posting by Allen Cogbill on the GMT mailing list last night, > and with a lot of clunky tweaking, worked for me: > > 1. Convert the .tif file to a Sun Rasterfile (I use ImageMagick).
[ > 2. Use Unix tools to read the .tfw file that accompanies the .tif > file and calculate the real-world coordinate extrema. > 3. Using g.region or imagemagick's identify, list the number of rows > and columns, and along with the image resolution, calculate > the N-S-E-W extents. > 4. Once real-world extents are known, ] gdalinfo will do all that for you from the geotiff, or from g.region at time of export. beware the dreaded cell-center vs grid-center convention issues. > use your psbasemap mapping scale to calculate image width and height > on paper. > 5. Pass this information to psimage -W. > > As long as the region defined in psbasemap's -R flag is identical to > the region of the generated tiff from GRASS, the image will plot > correctly. Hamish _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user