[Gdal-dev] GDAL error exporting grass raster to Gtiff

[Markus Neteler]

On Mon, Nov 06, 2006 at 05:01:41PM +0100, Yves Jacolin wrote:
> Le Lundi 6 Novembre 2006 16:53, Frank Warmerdam a écrit :
> > Yves Jacolin wrote:
> > > Hi,
> > >
> > > I tried to export raster data from GRASS to GTiff with r.out.gdal, I get
> > > this error message :
> > > GRASS 6.2.0RC1 (Lambert2Nord):~ > r.out.gdal input=C03r type=Byte
> > > output=C03.tiff
> > > Writing format: GTiff
> > > Writing type:   Byte
> > > Input file size is 2159, 1574
> > > 0Warning 1: Lost metadata writing to GeoTIFF ... too large to fit in tag.
> > > ...10...20...30...40...50...60...70...80...90...100 - done.
> > > /usr/local/grass-6.2.0RC1/scripts/r.out.gdal: line 136: 25674 Erreur de
> > > segmentation  gdal_translate -of $FORMAT -ot $TYPE $CREATEKEY $METAKEY
> > > $CELLHD $OUTPUT
> > >
> > > I posted a message in the grass list but I got no answer. Have you got
> > > any ideas ? Thank you.
> >
> > Yves,
> >
> > I would guess that there is a large color table associated with the input
> > raster and it is overflowing the size of a TIFF tag.  I don't know why
> > this is resulting in a segmentation fault in r.out.gdal though.
> >
> > Best regards,
> Thank you Frank,
> 
> The files are really created but the color are not good ! You are right.
> Do you think if I change the color table in GRASS, I can sucess to export 
> them ? The raster came from tif files extracted from PDF files and 
> georeferenced inside GRASS.

Another possibility could be that you need to rebuild the
GRASS-GDAL-OGR plugin. Using

ldd `which gdal_translate`
you could check if the right plugin is used.

Markus