CGAL users discussion list

[Laurent Rineau <>]

On Wednesday 12 March 2008 11:39:49 Boris Kazakov wrote:
> Hi, I'm new to CGAL and I'd like to do the following:
>     Create a new Triangulation_2
>     Add several points to it(for example, (0,0), (10,0), (10,10),
> (0,10),(5,5))
>     Then move central point somewhere and check, weather the
> triangulation remains valid(by calling is_valid() method)
>
> When I am moving central point outside of the box [0,0,10,10]  I get the
> following error:
>
> CGAL error: assertion violation!
> Expr: s == LEFT_TURN
> File: /usr/local/include/CGAL/Triangulation_2.h
> Line: 633
>
> Is there a way to disable this assertion  violation, so that after
> moving the point is_valid method will return false?

Yes. You can disable all "triangulation related" assertions, by defining the 
macro CGAL_TRIANGULATION_NO_ASSERTIONS, that is add the 
flag "-DCGAL_TRIANGULATION_NO_ASSERTIONS" to your preprocessing or 
compilation flags.

-- 
Laurent Rineau
INRIA - Sophia Antipolis
BP 93, 2004 Route des Lucioles
06902 Sophia Antipolis Cedex FRANCE
Tel: +33 4 92 38 78 62 (Fax: +33.4.97.15.53.95)