CGAL 6.2 - Boolean Operations on Meshes

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PMP_Boolean_operations/corefinement_mesh_union_progress.cpp
#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
#include <CGAL/Surface_mesh.h>
#include <CGAL/Polygon_mesh_processing/corefinement.h>
#include <CGAL/Polygon_mesh_processing/IO/polygon_mesh_io.h>
#include <fstream>
typedef CGAL::Exact_predicates_inexact_constructions_kernel K;
typedef CGAL::Surface_mesh<K::Point_3> Mesh;
namespace PMP = CGAL::Polygon_mesh_processing;
struct Visitor_rep{
Visitor_rep(double normalize = 4)
: normalize(normalize)
{
t.start();
}
void progress_filtering_intersections(double d)
{
d /= normalize;
total += d;
if(total > bound){
std::cout << std::setprecision(3) << total*100 << " % in " << std::setprecision(5) << t.time() << " sec." << std::endl;
bound += 0.1;
}
}
void start_triangulating_faces(std::size_t tf)
{
tfaces = tf;
bound_faces = tf/10;
}
void face_triangulation(std::size_t i)
{
if(i> bound_faces){
std::cout << double(i)/double(tfaces) * 100 << " %" << std::endl;
bound_faces += tfaces/10;
}
}
void start_coplanar_faces(std::size_t tc)
{
std::cout << "Visitor::start_coplanar_faces() at " << t.time() << " sec." << std::endl;
tcoplanar= tc;
count_coplanar = 0;
bound_coplanar = tcoplanar/10;
}
void intersection_of_coplanar_faces_step()
{
++count_coplanar;
if(count_coplanar> bound_coplanar){
std::cout << "Visitor::coplanar_faces: " << double(count_coplanar)/double(tcoplanar) * 100 << " % " << std::endl;
bound_coplanar += tcoplanar/10;
}
}
void start_intersection_points(std::size_t ti)
{
std::cout << "Visitor::start_intersection_points() at " << t.time() << " sec." << std::endl;
tintersection= ti;
count_intersection = 0;
bound_intersection = tintersection/10;
}
void edge_face_intersections_step()
{
++count_intersection;
if(count_intersection> bound_intersection){
std::cout << "Visitor::intersection_points: " << double(count_intersection)/double(tintersection) * 100 << " % " << std::endl;
bound_intersection += tintersection/10;
}
}
double time() const
{
return t.time();
}
double normalize;
double bound = 0.1;
double total = 0;
std::size_t count = 0;
std::size_t bound_faces = 0;
std::size_t tfaces = 0;
std::size_t bound_coplanar = 0;
std::size_t tcoplanar = 0;
std::size_t count_coplanar = 0;
std::size_t bound_intersection = 0;
std::size_t tintersection = 0;
std::size_t count_intersection = 0;
CGAL::Timer t;
};
struct Visitor :
public PMP::Corefinement::Default_visitor<Mesh>
{
std::shared_ptr<Visitor_rep> sptr;
mutable std::size_t tf_counter = 0;
Visitor()
: sptr(std::make_shared<Visitor_rep>())
{}
void progress_filtering_intersections(double d)
{
sptr->progress_filtering_intersections(d);
}
void start_filtering_intersections() const
{
std::cout << "Visitor::start_filtering_intersections() at " << sptr->time() << " sec." << std::endl;
}
void end_filtering_intersections() const
{
std::cout << "Visitor::end_filtering_intersections() at " << sptr->time() << " sec." << std::endl;
}
void start_triangulating_faces(std::size_t tf) const
{
std::cout << "Visitor::start_triangulation() with " << tf << " faces at " << sptr->time() << " sec." << std::endl;
sptr->start_triangulating_faces(tf);
tf_counter = 0;
}
void triangulating_faces_step() const
{
sptr->face_triangulation(tf_counter++);
}
void end_triangulating_faces()const
{
std::cout << "Visitor::end_triangulating_faces() at " << sptr->time() << " sec." << std::endl;
}
void start_handling_intersection_of_coplanar_faces(std::size_t i) const
{
sptr->start_coplanar_faces(i);
}
void intersection_of_coplanar_faces_step() const
{
sptr->intersection_of_coplanar_faces_step();
}
void end_handling_intersection_of_coplanar_faces() const
{
std::cout << "Visitor::end_coplanar_faces() at " << sptr->time() << " sec." << std::endl;
}
void start_handling_edge_face_intersections(std::size_t i) const
{
sptr->start_intersection_points(i);
}
void edge_face_intersections_step() const
{
sptr->edge_face_intersections_step();
}
void end_handling_edge_face_intersections() const
{
std::cout << "Visitor::end_intersection_points() at " << sptr->time() << " sec." << std::endl;
}
void start_building_output() const
{
std::cout << "Visitor::start_building_output() at " << sptr->time() << " sec."<< std::endl;
}
void end_building_output() const
{
std::cout << "Visitor::end_building_output() at " << sptr->time() << " sec." << std::endl;
}
};
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(!CGAL::IO::read_polygon_mesh(filename1, mesh1) || !CGAL::IO::read_polygon_mesh(filename2, mesh2))
{
std::cerr << "Invalid input." << std::endl;
return 1;
}
CGAL::Timer t;
t.start();
Mesh out;
Visitor visitor;
bool valid_union = PMP::corefine_and_compute_union (mesh1,mesh2, out, CGAL::parameters::visitor(visitor));
std::cout << "Global timer = " << t.time() << " sec." << std::endl;
if(valid_union)
{
std::cout << "Union was successfully computed\n";
CGAL::IO::write_polygon_mesh("union.off", out, CGAL::parameters::stream_precision(17));
return 0;
}
std::cout << "Union could not be computed\n";
return 1;
}
CGAL::Exact_predicates_inexact_constructions_kernel
CGAL::Surface_mesh
CGAL::Polygon_mesh_processing::corefine_and_compute_union
bool corefine_and_compute_union(TriangleMesh &tm1, TriangleMesh &tm2, TriangleMesh &tm_out, const NamedParameters1 &np1=parameters::default_values(), const NamedParameters2 &np2=parameters::default_values(), const NamedParametersOut &np_out=parameters::default_values())
corefines tm1 and tm2 and puts in tm_out a triangulated surface mesh bounding the union of the volu...
Definition: corefinement.h:605
CGAL::IO::read_polygon_mesh
bool read_polygon_mesh(const std::string &fname, Graph &g, const NamedParameters &np=parameters::default_values())
CGAL::IO::write_polygon_mesh
bool write_polygon_mesh(const std::string &fname, Graph &g, const NamedParameters &np=parameters::default_values())
std
STL namespace.