CGAL users discussion list

[Anthony Truchet <>]

Hello Andreas, hello to all,

Thanks for you quick reaction :-)

Le 27/11/2012 21:47, Andreas Fabri a écrit :
> To get the graphicsitem compiled,  it would be enough to throw out
> Ray, Line, Iso_rectangle from the classes
> CGAL::Qt::Converter, which converts CGAL and Qt points,...
> CGAL::Qt::Painter_ostream, which calls the Qt drawing functions.
>
> I write "enough", as you are looking for a quick hack.

I fear I don't grasp enough of the CGAL::Qt and GeometricTraits (yet) to 
fully understand your "quick hack".

Do you mean I should write myself specialization of the 
CGAL::Qt::Converter template for the Point_3 class, which get aliased to 
Point_2 by the projection_xy_3 traits ?
Which part of this code would belong to the Geometric Traits, to 
CGAL::QT or to my own code ?

I would have expected naively that the projection_xy_3 trait would 
convert the Point_3 into Point_2, but this seems not being the case. 
Should this operation really happen in CGAL::Qt::Converter ?

Thanks for your consideration.

Best regards,
--
Anthony Truchet

Engineer with Logilab SA - www.logilab.fr