[Qgis-developer] new geom function: combine cascaded

[Paolo Cavallini]

Il 10/02/2013 16:25, vinayan ha scritto:
> Hi,
> 
> Sorry for jumping in on this old thread. Wouldn't it be a really useful
> addition to QgsGeometry class? The current union is extremely slow when
> large number of geometries are processed. I also think this could be the
> real issue in slow dissolve in ftools.
> 
> I recently used this on my plugin. Roughly it is around 10 times faster then
> normal union. I hope we can introduce a new union method without breaking
> the existing union.

+1 for me

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Paolo Cavallini - Faunalia
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