[Gdal-dev] AAIGrid driver: small PROJCS detection problem

[Markus Neteler]

On Fri, Apr 23, 2004 at 09:45:43AM -0400, Frank Warmerdam wrote:
> Markus Neteler wrote:
> 
> > PROJCS["Monte_Mario_Italy_1_BZ",
> >    GEOGCS["GCS_Monte_Mario",
> >        DATUM["Monte_Mario",
> >            SPHEROID["International_1924",6378388,297]],
> >        PRIMEM["Greenwich",0],
> >        UNIT["Degree",0.017453292519943295]],
> >    PROJECTION["Transverse_Mercator"],
> >    PARAMETER["False_Easting",500000.0],
> >    PARAMETER["False_Northing",-5000000.0],
> >    PARAMETER["Central_Meridian",9],
> >    PARAMETER["Scale_Factor",0.9996],
> >    PARAMETER["Latitude_Of_Origin",0],
> >    UNIT["Meter",1]]
> 
> Markus,
> 
> I have committed a bunch of additional changes to GDAL to preserve the
> PROJCS and GEOGCS names as citations in the geotiff files, and to recover
> them when reading and forming WKT again.  I can't seem to find the
> exact message that triggered me into doing that but it was related to
> this thread.


Frank,

great work (as usual)! This also closes the bug report
 http://bugzilla.remotesensing.org/show_bug.cgi?id=557

The user defined datum (+towgs84=-104.1,-49.1,-9.9,0.971,-2.917,0.714,-11.68')
is eaten and not preserved, but maybe it cannot be kept.

Thanks for the quick fix (I'm going to teach GIS using these
data later this week).

Best regards,

 Markus Neteler