[gdal-dev] troubles with OVERRIDE_PROJ_DATUM_WITH_TOWGS84

G. Allegri giohappy at gmail.com
Tue May 22 18:47:13 EDT 2012


> Giovanni,
>
> I'm afraid I don't really follow your point.  Are you wanting to
> be able to do something like -t_srs GFOSSIT:3033 ?

No Frank, that would be a hell! :)
I was just thinking about the relation that can be assumed between the
epsg strings produced by gdal and the epsg codes from the EPSG
registry. I mean, if I say that I'm using an EPSG:3003, it's different
if I assume it in its original definition (without transformation
parameters) and the one produced by gdal (with a best available
transformation).
For anything custom I would strictly use the rule of using code ranges
beyon 32767, and to avoid clashes an authority field would help.

>> The idea of a DATUMSHIT selector would be nice ;)

> I'm not too sure if your misspelling is intentional or not,
> though it captures how I often feel about datums.

I was referring to the extended -t_srs option you were suggesting...

giovanni

>
> Best regards,
> --
> ---------------------------------------+--------------------------------------
> I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
> light and sound - activate the windows | http://pobox.com/~warmerdam
> and watch the world go round - Rush    | Geospatial Software Developer


More information about the gdal-dev mailing list