[GRASS-user] Warning regarding Datum unknown not recognised by GRASS

[Markus Neteler]

On Wed, Jun 30, 2010 at 4:33 PM, Kim Besson <kimbesson1981 at gmail.com> wrote:
> So, this means that I'm not able to use g.proje -jf output to properly
> define a coordinate system right?

Of course you can.

Back to your original email:

On Tue, Jun 29, 2010 at 11:20 AM, Kim Besson <kimbesson1981 at gmail.com> wrote:
...
> But if I check proj4.tif CRS I get this:
> +proj=utm +south +no_defs +zone=24 +a=6378137 +rf=298.257223563 +to_meter=1
> Trying to open with OGR...
> Trying to open with GDAL...
> ...succeeded.
> Datum <unknown> not recognised by GRASS and no parameters found

Yuo see that there is not datum=... in that string. Hence unknown.
Instead of writing out togws84=0.0,0.0,0.0 you could use
datum=wgs84 which is stored in GeoTIFF.

Markus