Oh well. Guess I wasn't thinking big enough. Michael
On 7/3/07 3:54 AM, "Hamish" <[EMAIL PROTECTED]> wrote: > 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 __________________________________________ Michael Barton, Professor of Anthropology Director of Graduate Studies School of Human Evolution & Social Change Center for Social Dynamics & Complexity Arizona State University phone: 480-965-6213 fax: 480-965-7671 www: http://www.public.asu.edu/~cmbarton _______________________________________________ grass-dev mailing list [email protected] http://grass.itc.it/mailman/listinfo/grass-dev
