On Tue, Oct 02, 2007 at 11:16:36PM -0500, Lance Dyas wrote: > Christopher Schmidt wrote: > > * Use a WMS Server which support EPSG:900913 and sphericalMercator > > on the base layer. > > I keep meaning to ask this Why 900913 > I had previously seen 54004 and 41001
54004 and 41001 have both been used to describe the same thing -- that is, the proj4 projection +proj=merc. Although this works well to a point, it has issues in matching up exactly -- a more exact proj4 string was uncovered by FrankW, as documented in http://proj.maptools.org/faq.html#sphere_as_wgs84 . Since the two things which are commonly used were already taken -- and the former was really reserved for a different purpose anyway -- we went with Tim's cute play on 'g o o g l e' -- 9 0 0 9 1 3. Can't tell me you'll forget that now. Regards, -- Christopher Schmidt MetaCarta _______________________________________________ Dev mailing list [email protected] http://openlayers.org/mailman/listinfo/dev
