[Qgis-developer] CGAL in QGIS ?

Marco Hugentobler marco.hugentobler at karto.baug.ethz.ch
Wed Jan 30 09:23:10 EST 2008

Hi Michaël,

Basically, QGIS plugins are free to link to any libraries they want (as far as 
there is no license problem). So no problem if you intend to create analysis 
plugins for QGIS that are linked to the CGAL library.

In my opinion, the advantage of these 'native' plugins over GRASS plugins 
would be that data does not need to be converted if it is not already in 
GRASS format. The disadvantage of course is that they need to be done before 
they can be used, while the GRASS plugin exists and provides a large number 
of excellent analysis methods.

But there is in principal no reason why GRASS plugins and other analysis 
plugins may exist at the same time.


Am Mittwoch 30 Januar 2008 14:54:30 schrieb Michaël Douchin:
> Hi all,
> After a deep research, I found the projetct CGAL, wich provides
> geometrical algorithm : voronoi diagram, convex hull, triangulation, etc.
> http://www.cgal.org/
> They provide python bindings too ( http://cgal-python.gforge.inria.fr/ )
> Do you think this could be used in qgis ? Or do you think the grass
> tools a sufficent ?
> Kimaidou
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Dr. Marco Hugentobler
Institute of Cartography
ETH Zurich
Technical Advisor QGIS Project Steering Committee

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