On Tuesday 17 July 2007 17:23:34 Paul Ramsey wrote: > Jørn Vegard Røsnes wrote: > > If I utilize the PostGIS transform function to transform the search > > polygon to a (polar) stereographic geometry (SRID 32661) and execute > > spatial queries to match the product geometries in (polar) stereographic. > > > > Will PostGIS then use the "stereographic space", not the planar/Euclidean > > space? > > Yes, but that all your data that is *not* at the poles will be > problematic... certainly you won't be able to do two poles at once. If > you have truly global data (few do, but you could be one of them) then a > truly global system is required. We are proposing a "geography" type > for full geodetic support, but looking for funders as it is not a > trivial quantity of work. >
Hi, I've searched the mailinglist briefly, but couldn't find news about geodetic implementation. Are there some news about this item, unreported or reported? One more question (from a rookie of this subject). Are we talking about implementing ECEF support, or something else, to get full geodetic support in PostGIS? http://en.wikipedia.org/wiki/ECEF http://en.wikipedia.org/wiki/Geodetic_system kind regards Jorn Vegard _______________________________________________ postgis-users mailing list [email protected] http://postgis.refractions.net/mailman/listinfo/postgis-users
