[GRASS-user] Warning message while using r.in.gdal

[Markus Neteler]

2010/2/25 António Rocha <antonio.rocha at deimos.com.pt>:
> Hi all
>
> I have Location/Mapset with this characteristics:
> g.region -p
>    projection: 3 (Latitude-Longitude)
> zone:       0
> datum:      wgs84
> ellipsoid:  wgs84
>
> I'm I'm trying to import a file with the following geographic
> characteristics (using gdalinfo):
> Driver: GTiff/GeoTIFF
> Files: euro_area_latlong.tif
> Size is 1721, 595
> Coordinate System is:
> GEOGCS["WGS 84",
>   DATUM["unknown",
>       SPHEROID["unnamed",6378137,298.2572235629972]],
>   PRIMEM["Greenwich",0],
>   UNIT["degree",0.0174532925199433]]
>
>
> When I do r.in.gdal, to import this file, I get the following Warning:
> Datum <unknown> not recognised by GRASS and no parameters found
> Projection of input dataset and current location appear to match

please post the output of

gdalinfo euro_area_latlong.tif


> It imports but it wasn't suppose to get this error since i'm using the same
> coordinate/projection system. How can I avoid this? Should I add more
> information to destination_projection when I warped that file?

Either the metadata in euro_area_latlong.tif are read correctly by GDAL or
a definition is missing or the metadata are incorrect in the file. From the
gdalinfo output we may understand more...

Markus