[Qgis-developer] Processing and ftools (Proposal for hackfest)

[Giovanni Manghi]

Hi,


> Also, many ftools algorithms are terribly slow (e.g. dissolve), particularly
> when compared to the equivalent tools based on ogr2ogr, that Giovanni Manghi
> added to Processing a few months ago. It may worth considering the
> possibility of deleting some ftools algorithm in favor of the ogr2ogr based
> algorithms.

I will try to add as many geoprocessing operations based on
ogr2ogr/sql as I can,
especialy the ones that are really slow in ftools. Anyway to be able
to add the operations
that involve more than 1 input layer it will be needed to add a method
in processing to
create (on the fly) virtual vectors (and in general this tool would
benefit from other improvements
like multi-attribute selection). I plan to discussa about this things
in Denmark.

cheers

-- 
Giovanni Manghi
http://naturalgis.pt/
giovanni.manghi at naturalgis.pt
* WebGIS development
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Giovanni is QGIS main tester and active member of its development team
--