CGAL 6.2 - 2D Minkowski Sums

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Minkowski_sum_2/sum_with_holes.cpp
// Computing the Minkowski sum of two non-convex polygons read from a file.
#include <fstream>
#include <CGAL/minkowski_sum_2.h>
#include "bops_linear.h"
#include "pgn_print.h"
int main(int argc, char* argv[])
{
// Open the input file and read the two polygons from it.
const char* filename = (argc > 1) ? argv[1] : "rooms_star.dat";
std::ifstream in_file(filename);
if (! in_file.is_open()) {
std::cerr << "Failed to open the input file." << std::endl;
return -1;
}
Polygon_2 P, Q;
in_file >> P >> Q;
in_file.close();
// Compute and print the Minkowski sum.
Polygon_with_holes_2 sum = CGAL::minkowski_sum_2(P, Q);
std::cout << "P (+) Q = ";
print_polygon_with_holes(sum);
return 0;
}
CGAL::minkowski_sum_2
Polygon_with_holes_2< Kernel, Container > minkowski_sum_2(const PolygonType1< Kernel, Container > &P, const PolygonType2< Kernel, Container > &Q)
Computes the Minkowski sum of two given polygons (which may have holes).