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[cgal-discuss] Construct_hyperbolic_segment_2 does not terminate


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  • From: Stefan Witzel <>
  • To:
  • Subject: [cgal-discuss] Construct_hyperbolic_segment_2 does not terminate
  • Date: Thu, 20 Jun 2019 14:46:34 +0200
  • Authentication-results: mail2-smtp-roc.national.inria.fr; spf=None ; spf=Pass ; spf=None
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Hello,

Here is an obscure issue: I have two points p and q for which
Construct_hyperbolic_segment_2 does not terminate. The points are
approximately Hyperbolic_point_2(0.9666536103464638,-0.0141826279439945)
and Hyperbolic_point_2(0.9666536103464638,0.0141826279439945) but I
don't know how I can dump them exactly. They arise as vertices of a
hyperbolic Voronoi diagram. Any suggestions?

Best,
Stefan

Some relevant code:

typedef CGAL::Hyperbolic_Delaunay_triangulation_traits_2<> Gt;
typedef typename Gt::Hyperbolic_point_2
Hyperbolic_point_2;
typedef Gt::Construct_hyperbolic_segment_2
Construct_hyperbolic_segment_2;

Hyperbolic_point_2 p = ...;
Hyperbolic_point_2 q = ...;
std::cerr << "Lets try...";
Construct_hyperbolic_segment_2(p,q);
std::cerr << "...done"; // This point won't be reached



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