[gdal-dev] gdalwarp with gauss resampling

[Jan Hartmann]

On 01/12/11 20:17, Frank Warmerdam wrote:
>
> Yes, you can dump overviews to a standalone file using the 
> "dumpoverviews"
> commandline application.  I don't think it is built by default so you 
> might
> need to go into gdal/apps and make it explicitly.
>
>
Yes, this works after compiling: I get a standalone, gauss-resampled 
version of the original file at a lower resolution. For larger areas I 
would need to combine several raster files with gdal_merge, run gdaladdo 
on the large file, dump the overviews and throw the original combination 
file away. It's a long shot, but is it possible to run gdaladdo on a 
vrt-file that only has pointers to the datasets? I don't need the 
original merged file, only the derived downsampled ones.

Jan
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