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Re: [cgal-discuss] 3D Convex Hull - Determinism


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  • From: "Sebastien Loriot (GeometryFactory)" <>
  • To:
  • Subject: Re: [cgal-discuss] 3D Convex Hull - Determinism
  • Date: Mon, 29 Sep 2014 12:09:42 +0200
  • Organization: GeometryFactory

On 09/23/2014 09:24 PM, Dimitris Tzionas wrote:
Hi all,

I'm trying to compute the convex hull of a mesh following this sample:
http://doc.cgal.org/latest/Convex_hull_3/Convex_hull_3_2quickhull_3_8cpp-example.html

However the result is non-deterministic.
I know that the kernel used is an
"Exact_predicates_inexact_constructions_kernel",
does it mean that the result is inexact but deterministic, or it implies
non-determinism too?
http://doc.cgal.org/latest/Kernel_23/classCGAL_1_1Exact__predicates__inexact__constructions__kernel.html

Best,
dimitris

What determinism are you talking about?
The output in case you have coplanar points or the order in which
simplices in the output are ordered?

Sebastien.



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