Martin Desruisseaux ha scritto: > Le jeudi 08 février 2007 à 09:55 +0100, Andrea Aime a écrit : >> I'd say, if we don't want to compare metadata, not even names should be >> considered, but only the ellipsoid parameters and the bursa-worlf >> transform (provided the latter is available)? > > No. Two datum with the same ellipsoid may be really different things. > The datum describes how the ellipsoid is "attached" to the earth.
I thought we could leverage the Bursa Wolf parameters to decide whether the two ellipsoids have the same location and orientation, but yeah, it does not work for the specific WGS84 case. I guess I need the "WGS_1984" alias then. Cheers Andrea ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier. Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Geotools-devel mailing list Geotools-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geotools-devel
