I wonder... how hard would it be to make the barscale be the "national-geographic-like" when dealing with lat-long locations? Is this too much work / to hard to do? I think it could give an additional edge to GRASS.
--Wolf On 03.07.2007 18:51, Michael Barton wrote: > 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 -- <:3 )---- Wolf Bergenheim ----( 8:> _______________________________________________ grass-dev mailing list [email protected] http://grass.itc.it/mailman/listinfo/grass-dev
