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#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
#include <CGAL/Surface_mesh.h>
#include <CGAL/Polygon_mesh_processing/intersection.h>
#include <CGAL/Polygon_mesh_processing/IO/polygon_mesh_io.h>
#include <CGAL/iterator.h>
#include <algorithm>
#include <iostream>
#include <vector>
typedef CGAL::Exact_predicates_inexact_constructions_kernel Kernel;
typedef Kernel::Point_3 Point;
typedef CGAL::Surface_mesh<Point> Mesh;
typedef boost::graph_traits<Mesh>::vertex_descriptor vertex_descriptor;
typedef boost::graph_traits<Mesh>::halfedge_descriptor halfedge_descriptor;
typedef boost::graph_traits<Mesh>::face_descriptor face_descriptor;
namespace PMP = CGAL::Polygon_mesh_processing;
int main(int argc, char* argv[])
{
const std::string filename1 = (argc > 1) ? argv[1] : CGAL::data_file_path("meshes/blobby.off");
const std::string filename2 = (argc > 2) ? argv[2] : CGAL::data_file_path("meshes/eight.off");
Mesh mesh1, mesh2;
if(!PMP::IO::read_polygon_mesh(filename1, mesh1) || !PMP::IO::read_polygon_mesh(filename2, mesh2))
{
std::cerr << "Invalid input." << std::endl;
return 1;
}
std::vector< std::vector<Point> > polylines;
PMP::surface_intersection(mesh1, mesh2, std::back_inserter(polylines));
//dump polylines
std::ofstream output("intersection.polylines.txt");
output.precision(17);
for(const std::vector<Point>& polyline : polylines)
{
output << polyline.size() << " ";
std::copy(polyline.begin(), polyline.end(),std::ostream_iterator<Point>(output," "));
output << "\n";
}
return 0;
}
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