CGAL users discussion list

[Stimpy <>]

Hi,

i'm new to CGAL and a little bit confused  Hope someone can help me, that
were great.

I have installed CGAL on my CygWin and Linux Root - All is great. I build an
Alpha Shape of a Random Set of Points like this:

Alpha_shape_2 A(begin,end);
A.set_mode(Alpha_shape_2::REGULARIZED);
Alpha_iterator opt = A.find_optimal_alpha(1);
A.set_alpha(*opt);

for(Alpha_shape_edges_iterator it = A.alpha_shape_edges_begin();
it != A.alpha_shape_edges_end();
        ++it){
        *out++ = A.segment(*it);
        }

So, that is still great and it works. But sometimes the Alpha Shapes looks
little bit damaged like this:

<http://cgal-discuss.949826.n4.nabble.com/file/n4656379/alpha_failure.png> 

Why this happening? In 20 trys that happends 2-3 times, the other 17-18 Pics
looks good.

Sorry for my bad english and thank you for the help.



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