Michael Barton wrote: > > How about making d.barscale be approximately accurate in latlon near > the bottom of the map and say so in the docs? Not ideal, but useable > perhaps.
In short, no. e.g. whole world etopo2/nasa blue marble/admin98: g.region n=90 s=-90 w=-180 e=180 horizontal scale at the bottom of the map (s pole) is a singularity. even if you use the center of the region (equator) it is badly wrong over most of the map. I though about testing to see if the region was small enough for the scale not to change much (>1-2 pixel) over the spread of the map, but then it is still a different scale in the x and y dirs unless you are on the equator. Hamish _______________________________________________ grass-dev mailing list [email protected] http://grass.itc.it/mailman/listinfo/grass-dev
