\( \newcommand{\E}{\mathrm{E}} \) \( \newcommand{\A}{\mathrm{A}} \) \( \newcommand{\R}{\mathrm{R}} \) \( \newcommand{\N}{\mathrm{N}} \) \( \newcommand{\Q}{\mathrm{Q}} \) \( \newcommand{\Z}{\mathrm{Z}} \) \( \def\ccSum #1#2#3{ \sum_{#1}^{#2}{#3} } \def\ccProd #1#2#3{ \sum_{#1}^{#2}{#3} }\)
CGAL 5.0 - 2D Polygons
Polygon/draw_polygon_with_holes.cpp
#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
#include <CGAL/Polygon_with_holes_2.h>
#include <CGAL/draw_polygon_with_holes_2.h>
typedef CGAL::Polygon_with_holes_2<K> Polygon_with_holes_2;
typedef CGAL::Polygon_2<K> Polygon_2;
typedef CGAL::Point_2<K> Point;
int main()
{
// create a polygon with three holes
Polygon_2 outer_polygon;
outer_polygon.push_back(Point(0,0)); outer_polygon.push_back(Point(9,0));
outer_polygon.push_back(Point(6,8)); outer_polygon.push_back(Point(5,3));
outer_polygon.push_back(Point(2,8)); outer_polygon.push_back(Point(0,8));
std::vector<Polygon_2> holes(3);
holes[0].push_back(Point(6,2)); holes[0].push_back(Point(7,1));
holes[0].push_back(Point(7,3)); holes[0].push_back(Point(6,3));
holes[0].push_back(Point(5,2));
holes[1].push_back(Point(2,1)); holes[1].push_back(Point(3,1));
holes[1].push_back(Point(3,3)); holes[1].push_back(Point(2,2));
holes[1].push_back(Point(1,2));
holes[2].push_back(Point(1,4)); holes[2].push_back(Point(2,4));
holes[2].push_back(Point(2,5)); holes[2].push_back(Point(3,5));
holes[2].push_back(Point(3,6)); holes[2].push_back(Point(1,6));
Polygon_with_holes_2 p(outer_polygon, holes.begin(), holes.end());
// And draw it.
return EXIT_SUCCESS;
}