CGAL 5.6.3 - Spatial Sorting

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Spatial_sorting/hilbert_policies.cpp
#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
#include <CGAL/hilbert_sort.h>
#include <iostream>
#include <vector>
typedef CGAL::Exact_predicates_inexact_constructions_kernel K;
typedef K::Point_2 Point;
int main ()
{
std::vector<Point> v; v.reserve(4);
v.push_back( Point(0.0,0.0)) ;
v.push_back( Point(1.0,1.0)) ;
v.push_back( Point(0.1,0.1)) ;
v.push_back( Point(0.2,0.8)) ;
std::cout << "Hilbert sort (middle policy)." << std::endl;
CGAL::hilbert_sort (v.begin(), v.end(), K(), CGAL::Hilbert_sort_middle_policy());
std::cout<<v[0]<<"; "<<v[1]<<"; "<<v[2]<<"; "<<v[3]<<"; "<<std::endl;
std::cout << "Hilbert sort (median policy)." << std::endl;
CGAL::hilbert_sort (v.begin(), v.end(), K(), CGAL::Hilbert_sort_median_policy());
std::cout<<v[0]<<"; "<<v[1]<<"; "<<v[2]<<"; "<<v[3]<<"; "<<std::endl;
return 0;
}
CGAL::Exact_predicates_inexact_constructions_kernel
CGAL::hilbert_sort
void hilbert_sort(InputPointIterator begin, InputPointIterator end, const Traits &traits=Default_traits, PolicyTag policy=Default_policy)
The function hilbert_sort() sorts an iterator range of points along a Hilbert curve.
CGAL::Hilbert_policy
Hilbert_policy is a policy class which can be used to parameterize a strategy policy in order to spec...
Definition: Hilbert_policy_tags.h:59