1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
//! \file examples/Minkowski_sum_2/sum_with_holes.cpp
// Computing the Minkowski sum of two non-convex polygons read from a file.
#include <CGAL/Exact_predicates_exact_constructions_kernel.h>
#include <CGAL/minkowski_sum_2.h>
#include <iostream>
#include <fstream>
#include "print_utils.h"
struct Kernel : public CGAL::Exact_predicates_exact_constructions_kernel {};
typedef Kernel::Point_2 Point_2;
typedef CGAL::Polygon_2<Kernel> Polygon_2;
typedef CGAL::Polygon_with_holes_2<Kernel> Polygon_with_holes_2;
int main ()
{
// Open the input file.
std::ifstream in_file ("rooms_star.dat");
if (! in_file.is_open())
{
std::cerr << "Failed to open the input file." << std::endl;
return (1);
}
// Read the two polygons from the file and compute their Minkowski sum.
Polygon_2 P, Q;
in_file >> P >> Q;
in_file.close();
// Compute and print the Minkowski sum.
Polygon_with_holes_2 sum = minkowski_sum_2 (P, Q);
std::cout << "P (+) Q = "; print_polygon_with_holes (sum);
return (0);
}
|
