CGAL 6.1.1 - 2D Polygons

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Polygon/ranges.cpp
#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
#include <CGAL/Polygon_2.h>
typedef CGAL::Exact_predicates_inexact_constructions_kernel K;
typedef CGAL::Polygon_2<K> Polygon_2;
typedef K::Point_2 Point_2;
typedef K::Segment_2 Segment_2;
int main()
{
// create a polygon and put some points in it
Polygon_2 p;
p.push_back(Point_2(0,0));
p.push_back(Point_2(4,0));
p.push_back(Point_2(4,4));
for(const Point_2& p : p.vertices()){
std::cout << p << std::endl;
}
// As the range is not light weight, we have to use a reference
const Polygon_2::Vertices& range = p.vertices();
for(auto it = range.begin(); it!= range.end(); ++it){
std::cout << *it << std::endl;
}
for(const Segment_2& e : p.edges()){
std::cout << e << std::endl;
}
return EXIT_SUCCESS;
}
CGAL::Exact_predicates_inexact_constructions_kernel
CGAL::Polygon_2
The class Polygon_2 implements polygons.
Definition: Polygon_2.h:65
CGAL::Polygon_2::push_back
void push_back(const Point_2 &x)
Has the same semantics as p.insert(p.vertices_end(), q).
Definition: Polygon_2.h:226