\( \newcommand{\E}{\mathrm{E}} \) \( \newcommand{\A}{\mathrm{A}} \) \( \newcommand{\R}{\mathrm{R}} \) \( \newcommand{\N}{\mathrm{N}} \) \( \newcommand{\Q}{\mathrm{Q}} \) \( \newcommand{\Z}{\mathrm{Z}} \) \( \def\ccSum #1#2#3{ \sum_{#1}^{#2}{#3} } \def\ccProd #1#2#3{ \sum_{#1}^{#2}{#3} }\)
CGAL 4.11 - 3D Mesh Generation
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Mesh_3/mesh_polyhedral_domain_with_surface_inside.cpp
#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
#include <CGAL/Mesh_triangulation_3.h>
#include <CGAL/Mesh_complex_3_in_triangulation_3.h>
#include <CGAL/Mesh_criteria_3.h>
#include <CGAL/Polyhedron_3.h>
#include <CGAL/Polyhedral_mesh_domain_with_features_3.h>
#include <CGAL/make_mesh_3.h>
#include <CGAL/Timer.h>
// Domain
// Triangulation
Tr,Mesh_domain::Corner_index,Mesh_domain::Curve_segment_index> C3t3;
// Criteria
typedef CGAL::Mesh_criteria_3<Tr> Mesh_criteria;
// To avoid verbose function and named parameters call
using namespace CGAL::parameters;
int main(int argc, char*argv[])
{
std::cout.precision(17);
std::cerr.precision(17);
const char* fname = (argc>1)?argv[1]:"data/horizons.off";
std::ifstream input(fname);
const char* fname2 = (argc>2)?argv[2]:"data/horizons-domain.off";
std::ifstream input2(fname2);
Polyhedron sm, smbounding;
input >> sm;
input2 >> smbounding;
if(input.fail()){
std::cerr << "Error: Cannot read file " << fname << std::endl;
return EXIT_FAILURE;
}
t.start();
// Create domain
Mesh_domain domain(sm, smbounding);
// Get sharp features
domain.detect_features();
// Mesh criteria
Mesh_criteria criteria(edge_size = 0.025,
facet_angle = 25, facet_size = 0.05, facet_distance = 0.005,
cell_radius_edge_ratio = 3, cell_size = 0.05);
// Mesh generation
C3t3 c3t3 = CGAL::make_mesh_3<C3t3>(domain, criteria,
std::cerr << t.time() << " sec." << std::endl;
// Output
dump_c3t3(c3t3, "out");
}