I did some investingation on the math and it seems correct to me (there was a little typo in the forward conversion, so I have just updated the patch attached to the jira issue). > > The problem is not in the latitude of origin, but in the lack of the > TOWGS84 parameter. The projection library won't be able to make a proper > datum change. > If you look at the srs list of GeoServer you'll see that the Bessel > ellipsoid is used in many many projections, and each one has a different > set of TOWGS84 parameters depending on how the ellipsoid is > located/rotated relative to the wgs84 one (which is geocentric). > You'll have to find the proper parameter for that area of Italy... > unfortuantely the EPSG database does not seem to contain any. Unfortunately I'm not able to find any too, so for now I think we have to wait for someone luckier than us :-) Apart from the Italian situation, maybe the projection itself could be useful to other countries.
Mauro ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _______________________________________________ Geotools-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geotools-devel
