[Gdal-dev] Strange GeoTIFF error/gdal_merge.py

[Markus Neteler]

On Thu, Mar 18, 2004 at 05:10:23PM -0700, Simon Perkins wrote:
> On Thu, 2004-03-18 at 10:39, Frank Warmerdam wrote:
> 
> > It had been my intention that GDAL would gracefully handle strips or
> > tiles that have an offset and size of zero as "auto-nodata".  Apparently
> > I did not complete that properly.   I will look into this.  Currently
> > preinitializing to zero should resolve the problem but I realize that is
> > not so easy to do.

Sorry to be ignorant, but how to preinitialize to zero?

I was using:

 gdal_merge.py -f GTiff -n -9999 -o lomb20m.tif \
    `find /cdimage/DEM/grid | grep w001001x`

to do the mosaiking.
 
> I've only just joined this discussion so I might have missed something,
> but the GDAL C API does contain a GDALFillRaster() function which allows
> you to fill a band with a particular constant value. There's a
> corresponding GDALRasterBand::Fill() C++ method as well.
> 
> I don't know if there are any python bindings for this function though
> if that's what you need..
> 
> Cheers,
> 
> Sy

Still appreciating help :-)

 Markus