CGAL users discussion list

["Laurent Rineau (GeometryFactory)" <>]

On Friday 16 October 2009 09:13:29 Zheng,Guang wrote:
> HI, all:
> 
> 
> I think I have successfully install CGAL-3.5, since I can run the
> demo/Triangulation_2 without any problem! But when I tried to compile the
> Alapha_shpae_2 or Nef_3 demos, both doesn't work at all. I even cannot find
> the source files in the *.sln file, I only can see the BUILD ALL and
> ZERO_CHECK when I opened it with MSVS2008. Could anyone help me figure it
> out?
> 
> One possible reason I am thinking is that I don't install the QT3, but I
> cannot find the QT3 code anywhere from webiste, could anyone give me a
>  link?

You have understood well: the Alpha_shape_2 demo still uses Qt3. Qt is 
distributed by Nokia. But I think Qt3 is no longer supported by them, even on 
commercial licenses. Have a look:

  http://qt.nokia.com/

As far as I know, Qt version 3.x is still distributed under the QPL license 
by 
Linux distribution, but obviously, their version do not work on Windows. The 
only Windows users that can still compile our Qt3 demos are those how had 
bought a commercial license of Qt3 before that product had been discontinued 
by Trolltech/Nokia. That is a problem, and that is why the CGAL project is 
doing effort to replace progressively the Qt3 demos by new demos that use Qt4.

If you only want to test the Alpha_shape_2 demo, you can find a precompiled 
version here:
  http://www.cgal.org/demo/3.5/alpha_shapes_2.zip

-- 
Laurent Rineau, PhD
R&D Engineer at GeometryFactory           http://www.geometryfactory.com/
Release Manager of the CGAL Project       http://www.cgal.org/