CGAL users discussion list

[Ben Supnik <>]

Yes - boolean polygon ops require exact constructions.

cheers
ben

Remi wrote:
> In a loop I'm adding simple polygons (triangles) to an empty polygon
> set - all of them have counterclockwise orientation. However at some
> point (let's say at 400th triangle) I get a failure at this line:
> CGAL_multiset_precondition (comp_f(object, nodeP->object) != LARGER);
> of the method:
> template <class Type, class Compare, typename Allocator>
> typename Multiset<Type, Compare, Allocator>::iterator
> Multiset<Type, Compare, Allocator>::insert_before (iterator position,
> const Type& object)
>
> I have no idea what this means and what is the cause :( Could it be
> caused by using CGAL::Exact_predicates_inexact_constructions_kernel ?

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