[Qgis-user] qgis slow adding a catalog from gdalbuildvrt.

[Paolo Cavallini]

Il 29/01/2012 11:13, Andrea Peri ha scritto:
> Hi,
> 
> I create a huge catalog using gdalbuildvrt.
> The raster are on a remote shared folder.
> 
> after I create the catalog, I try to add the catalog to my qgis canvas using the
> add raster option.
> Please note that I have the setting "do not visualize a new layer added",
> to avoid lost more time to visualize every single raster of the catalogue.
> 
> But however qgis take many time to add the catalog to canvas.
> 
> I don't know why it take all this time.
> Perhaps it try to open every single raster listed in the catalog to get the bbox from
> it ?
> Is this a know issue ?

Confirmed, adding several raster types (including those from vrt) has become
painfully slow. A ticket has been opened: http://hub.qgis.org/issues/4421
Please add your details there; more feedback is needed, so it would be useful if you
could help us finding another suitable test sample.
All the best.
-- 
Paolo Cavallini - Faunalia
www.faunalia.eu
Full contact details at www.faunalia.eu/pc