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[cgal-discuss] Does maximum Alphalevel always guarantee that all of the elements are classified as EXTERIOR type?


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  • From: nsoonhui <>
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  • Subject: [cgal-discuss] Does maximum Alphalevel always guarantee that all of the elements are classified as EXTERIOR type?
  • Date: Fri, 3 Aug 2018 02:46:05 -0500 (CDT)
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I have the following (Pseudo) code:


Alpha_shape_2 *A =new Alpha_shape_2(first,last, 100000,Mode.Regular);
auto maxLevel = A->number_of_alphas()-1;
auto alphaLevel = A->get_nth_alpha(maxLevel);
for(fit=A->finite_faces_begin(); fit!=A->finite_faces_end(); ++fit)
{


A->set_alpha(alphaLevel);
auto classType2 = A->classify(fit); //can this be
EXTERIOR?

}


I know that if alphaLevel is not maximum, then A->classify(fit) can be
EXTERIOR.

But, my question is that, is it even possible for the maximum alpha level to
classify one of the face as EXTERIOR?





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