[Qgis-user] Handling large datasets in 2.10.1

[Paolo Cavallini]

Il 14/10/2015 16:40, Niccolo' Marchi ha scritto:
> Hi all,
> can anyone explain to me how QGIS handles large datasets (both raster
> and vector)? I mean: is there a "limit" connected to the SW or other?
> 
> I had very slow responses (a matter of hours) in two cases: clipping
> some UAV images bigger than 1Gb (5cm resolution, 112ha) and merging all
> the features of a shapefile (53000 geometries, almost 350Mb).
> 
> This happened on a laptop (dual core 1,7 GHz, 8Gb RAM) and on a
> workstation (quad core 2,13 GHz, 12 Gb RAM)...and I solved quite easily
> with ArcMap :/
> 
> any hint?

Hi Niccolo',
which backend are you using? In QGIS we have seveal ways of doing this,
and speed differences may be huge. Please also specify which OS and QGIS
version.
All the best.

-- 
Paolo Cavallini - www.faunalia.eu
QGIS & PostGIS courses: http://www.faunalia.eu/training.html