On Sun, 7 Feb 2010 17:30:23 -0800 Dylan Beaudette <dylan.beaude...@gmail.com> wrote: > How about an equal-area map projection? > > http://en.wikipedia.org/wiki/Map_projection#Equal-area
Good idea. This will easily give you correct relative area measures, which will often be sufficient. But how to convert these into absolute measures, for example, the area in km²? Any known conversion factors for the equal-area projections available in 'spTransform'? -- Karl Ove Hufthammer _______________________________________________ R-sig-Geo mailing list R-sig-Geo@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-geo
