[Gdal-dev] VRT file creation from multiple geotiff files

Frank Warmerdam warmerdam at pobox.com
Tue Mar 21 12:34:03 EST 2006


list67 at netscape.net wrote:
> Hi.  I have many geotiff files.  I think that they are all the same projection 
 > and resolution.  They are all either adjacent or overlap each other.  I'd
 > like for GDAL to treat them as a single dataset.  My current method for
 > accomplishing this is to run gdal_merge and create a single .img file, and 
then
 > pass that filename to GDAL.
> 
> Is there a more immediate method?  For example, could all the geotiffs be 
 > referenced by a single .vrt file?

Yes, this can be done, but the VRT mechanism isn't necessarily going
to scale up well to alot of individual files.  10's would be ok.
100's might not be ok.

 > If so, is there a program that can generate that .vrt file?

No, unfortunately not.

Best regards,
-- 
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I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | President OSGF, http://osgeo.org




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