sarthakahuja wrote: > thanks a lot, do you know how to get > their red, green, blue values (0-255) for the basic palette, try the r.colors.out in newer versions of GRASS. or create 3 new maps with r.mapcalc's # operator, then r.out.xyz for those: r.mapcalc map.red = r#map r.mapcalc map.green = g#map r.mapcalc map.blue = b#map Hamish