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/*! \file draw_polygon_with_holes_2.cpp
*/
#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
#include <CGAL/Polygon_2.h>
#include <CGAL/Polygon_with_holes_2.h>
#include <CGAL/draw_polygon_with_holes_2.h>
using K=CGAL::Exact_predicates_inexact_constructions_kernel;
using Point_2=K::Point_2;
using Polygon_2=CGAL::Polygon_2<K>;
using Polygon_with_holes_2=CGAL::Polygon_with_holes_2<K>;
Polygon_2 triangle(double x, double y)
{ // Create a triangle (x, y)
Polygon_2 P;
P.push_back(Point_2(x, y));
P.push_back(Point_2(x+0.5, y+1));
P.push_back(Point_2(x+1, y));
return P;
}
Polygon_2 rectangle(double l)
{ // Create a rectangle with given side length.
Polygon_2 P;
P.push_back(Point_2(0, 0));
P.push_back(Point_2(l, 0));
P.push_back(Point_2(l, l));
P.push_back(Point_2(0, l));
return P;
}
int main()
{
// Create a large rectangle A, with 3 triangle holes
Polygon_with_holes_2 A(rectangle(4));
Polygon_2 H1(triangle(1, 1));
Polygon_2 H2(triangle(2, 1));
Polygon_2 H3(triangle(1.5, 2));
A.add_hole(H1);
A.add_hole(H2);
A.add_hole(H3);
CGAL::draw(A);
return 0;
}
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