Markus Neteler wrote: > > I hope this is the correct place to post a request for an update to two > > comments in /lib/gis/area_poly1.c, and replace it with something more > > informative. > > > > My remarks are based on reading /lib/gis/area_poly1.c from > > grass-7.0.svn_src_snapshot_2013_07_13. > > ... I think that his suggestions deserve a feedback, anyone of the > grass devs knowledgeable with G_begin_ellipsoid_polygon_area()?
It's been a while since I looked at it, but I'm fairly sure that he's correct. ISTR that the calculation is essentially the area integral of the scale factor (which is a function of latitude) over a polygon in the Euclidean plane. -- Glynn Clements <[email protected]> _______________________________________________ grass-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-dev
