Paul Austin schrieb: > CoordinateOperations should use the Ellipsoid they are created with (can > be parameterised), they should not need to know how to do Ellipsoid > transformations. Ellipsoid transformations would only need to be defined > once in geographics to/from one ellipsoid to another, or we could define > a pivot ellipsoid then you'd only need to go to/from that ellipsoid. > > They one thing we need to be careful of is the accuracy of the > transformations, which may mean avoiding too many transformation steps.
mhm.. actually if i remember x,y => lat/lon and vice versa are approximating calculations (Taylor expansions?).. so some insecure is always axisting so.. i am leaving the thread for today stefan > Paul > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2005. > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > _______________________________________________ > Jump-pilot-devel mailing list > Jump-pilot-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > > ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Jump-pilot-devel mailing list Jump-pilot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel
