[gdal-dev] GDAL GeoPackage raster support

[Stefan Ziegler]

Hi

I'm playing with the new Geopackage raster support which is really nice.
Thanks for that. Some feedback so far:

* Loading in QGIS is instant when overviews are added with gdaladdo [1] but
really slow when there are no  overviews [2].
* Adding overviews to some areal images is really slow: gdaladdo only eats
< 10 % of the cpu. Is this some slow storage medium issue (harddisk)?

[1]: http://catais.org/tmp/hoehen.gpkg
[2]: http://catais.org/tmp/hoehen_ohne.gpkg

best regards
Stefan




On Thu, Dec 11, 2014 at 4:40 PM, Paolo Cavallini <cavallini at faunalia.it>
wrote:
>
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> Hi Even,
>
> Il 11/12/2014 16:37, Even Rouault ha scritto:
>
> > I'm confused by your comment :
>
> sorry I was unclear:
>
> > - are you trying to load a raster geopackage through "load
> > vector"... ? That will not do it. You should open it with "load
> > raster". That works with my antique QGIS 1.8 linked against GDAL
> > trunk ;-) - are you using GDAL trunk ? This is necessary for raster
> > support. Vector support should mostly work with GDAL 1.11
>
> I'm saying that QGIS cannot load .gpkg, therefore I cannot do more
> tests. When fixed, I'm available for testing.
>
> All the best.
>
> - --
> Paolo Cavallini - www.faunalia.eu
> QGIS & PostGIS courses: http://www.faunalia.eu/training.html
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