[gdal-dev] gdal_merge vs gdalbuildvrt

[Homme Zwaagstra]

Hello Jukka,

On 06/02/15 10:25, Jukka Rahkonen wrote:
> Even Rouault <even.rouault  <at> spatialys.com> writes:
 >
 >>
 >>>  gdalbuildvrt is a more
 >>> powerful tool that provides a virtual raster that acts as a 'window'
 >>> into the
 >>> input datasets, potentially with reprojection amidst other options.
 >>
 >> Small correction: gdalbuildvrt can only deal with datasets of the same
 >> projection.
 >
 > ...while gdaltindex utility http://www.gdal.org/gdaltindex.html that 
is also
 > a mosaic builder can deal with datasets in different projections. 
However,
 > this utility is specially made to create index files for Mapserver.

Can you use these tileindices with the -tileindex option to gdalbuildvrt?
Perhaps not if they are in different projections...

> Hmm, I have loads of tileindex  mosaics created with gdaltindex in shapefile
 > and Spatialite format, would be nice if I could utilize them also 
directly
 > with GDAL. I wonder it there is already a feature request about this.

I agree this would be very useful, almost like having a tile index as a GDAL
data source.  There is a related feature request here
<http://trac.osgeo.org/gdal/ticket/5762>.

Best regards,

Homme

>
 > -Jukka Rahkonen-
 >
 >
 >
 >
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 > gdal-dev at lists.osgeo.org
 > http://lists.osgeo.org/mailman/listinfo/gdal-dev


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