CGAL 6.1.1 - 2D Arrangements

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Arrangement_on_surface_2/io_curve_history.cpp
// Using the arrangement-with-history I/O operators.
#include <fstream>
#include <CGAL/Arrangement_with_history_2.h>
#include <CGAL/IO/Arr_with_history_iostream.h>
#include "arr_exact_construction_segments.h"
#include "arr_print.h"
using Arr_with_hist = CGAL::Arrangement_with_history_2<Traits>;
int main() {
// Insert six additional segments aggregately:
Segment segs[6];
segs[0] = Segment(Point(2, 6), Point(7, 1));
segs[1] = Segment(Point(3, 2), Point(3, 5));
segs[2] = Segment(Point(2, 3), Point(5, 3));
segs[3] = Segment(Point(2, 6), Point(7, 1));
segs[4] = Segment(Point(0, 0), Point(2, 6));
segs[5] = Segment(Point(3, 4), Point(6, 4));
Arr_with_hist arr1;
insert(arr1, segs, segs + 6);
std::cout << "Writing an arrangement of "
<< arr1.number_of_curves() << " input segments:\n";
print_arrangement_size(arr1);
// Write the arrangement to a file.
std::ofstream out_file("arr_ex_io_hist.dat");
out_file << arr1;
out_file.close();
// Read the arrangement from the file.
Arr_with_hist arr2;
std::ifstream in_file("arr_ex_io_hist.dat");
in_file >> arr2;
in_file.close();
std::cout << "Read an arrangement of "
<< arr2.number_of_curves() << " input segments:\n";
print_arrangement_size(arr2);
return 0;
}
CGAL::Arrangement_with_history_2
Definition: Arrangement_with_history_2.h:47