CGAL users discussion list

[Stefan Witzel <>]

Hi again,

I am working with a Hyperbolic Delaunay triangulation, more specifically with 
a

CGAL::Hyperbolic_Delaunay_triangulation_2<CGAL::Hyperbolic_Delaunay_triangulation_traits_2<>>
dt

Now I'm experiencing the following behavior: I have a program (and a
set of input) that finishes "immediately" but if I add some code, it
takes on the order of minutes and more *even in the old part of the
code*. So clearly there is some side effect, and I'm pretty certain
that I'm not producing it (the only thing I'm passing around is
const). For all I can tell the output (of the old part of the code) is
exactly the same as before so the side effect is restricted to
runtime.
So I'm wondering: is it possible that previous calculations performed
with dt affect future calculations? I'm imagining something like if
some calculation needed a certain precision (or number field), the
consecutive calculations are performed with the same precision even
though they might not need it. If this is the case, is there a way to
"reset" the precision?

Best,
Stefan

P.S.: In case someone has read the previous posts and is wondering: at
the moment I can't get the circular kernel to work because I don't
know how to turn a Hyperbolic_Voronoi_point_2 into a
Hyperbolic_point_2.