Jean Marie ha scritto: > Hello > > I begin to use GeoTools to create projections described in WKF format in > order to proceed tranformations ; > but to achieve this, it seems that I can't avoid the library > gt-epsg-hsql-2.6.3.jar > while I think that gt-referencing-2.6.3.jar was enough ; > > as an example I give you the code below which works fine if I add > gt-epsg-hsql-2.6.3.jar > > // transformation WGS 84 --> French Lambert zone II > > double Longitude=1.515; double Latitude=46.675 ; > String wktsrc="GEOGCS[\"WGS 84\", DATUM[\"World Geodetic System > 1984\",...."; > String wktdst="PROJCS[\"NTF (Paris) / Lambert zone II\",GEOGCS[\"NTF > (Paris)\",....."; > > CoordinateReferenceSystem crsSrc = CRS.parseWKT(wktsrc); > CoordinateReferenceSystem crsDest = CRS.parseWKT(wktdst); > CoordinateOperation op = coFactory.createOperation(crsSrc, crsDest);
Use CRS.findMathTransform(crsSrc, crsDest, true) that should work fine. Of course without Bursa-Wolf parameters in the definitions you'll get big transfromation errors (40-80 meters usually, the actual value varies a lot depending on the actual data, don't know what will be in your case) Cheers Andrea -- Andrea Aime OpenGeo - http://opengeo.org Expert service straight from the developers. ------------------------------------------------------------------------------ _______________________________________________ Geotools-gt2-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
