Hamish wrote: > [moved to the devel list] > I don't have: > - a 64 bit machine > - a dataset that large FWIW, it is easy to create arbitrary huge ASCII xyz dataset. Set your region to something big, create a raster with r.mapcalc (eg. rast=rand(10.0,1000.0)) and send it to an ASCII xyz file with r.stats -1ng > rast.txt. Maciek