CGAL 6.0 - 3D Mesh Generation
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Mesh_3/mesh_3D_gray_image.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/Labeled_mesh_domain_3.h>
#include <CGAL/make_mesh_3.h>
#include <CGAL/Image_3.h>
#include <functional>
typedef float Image_word_type;
// Domain
typedef CGAL::Labeled_mesh_domain_3<K> Mesh_domain;
// Triangulation
// Criteria
typedef CGAL::Mesh_criteria_3<Tr> Mesh_criteria;
namespace params = CGAL::parameters;
int main(int argc, char*argv[])
{
const std::string fname = (argc>1)?argv[1]:CGAL::data_file_path("images/skull_2.9.inr");
// Load image
if(!image.read(fname)){
std::cerr << "Error: Cannot read file " << fname << std::endl;
return EXIT_FAILURE;
}
Mesh_domain domain =
Mesh_domain::create_gray_image_mesh_domain(image, params::iso_value(2.9f).value_outside(0.f));
// Mesh criteria
Mesh_criteria criteria(params::facet_angle(30).facet_size(6).facet_distance(2).
cell_radius_edge_ratio(3).cell_size(8));
// Meshing
C3t3 c3t3 = CGAL::make_mesh_3<C3t3>(domain, criteria);
// Output
std::ofstream medit_file("out.mesh");
CGAL::IO::write_MEDIT(medit_file, c3t3);
medit_file.close();
return 0;
}
The class Image_3 is a C++ wrapper around the InrImage library.
Definition: Image_3.h:11
bool read(const char *file)
Open a 3D image file.
The class Labeled_mesh_domain_3 implements indexed domains.
Definition: Labeled_mesh_domain_3.h:359
The class gathers the refinement criteria for mesh tetrahedra and surface facets where surface facets...
Definition: Mesh_criteria_3.h:186
void write_MEDIT(std::ostream &os, const T3 &t3, const NamedParameters &np=parameters::default_values())