CGAL 5.6.3 - 3D Mesh Generation

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Mesh_3/mesh_3D_gray_image_with_custom_initialization.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/Mesh_3/initialize_triangulation_from_gray_image.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::Exact_predicates_inexact_constructions_kernel K;
typedef CGAL::Labeled_mesh_domain_3<K> Mesh_domain;
// Parallel tag
#ifdef CGAL_CONCURRENT_MESH_3
typedef CGAL::Parallel_tag Concurrency_tag;
#else
typedef CGAL::Sequential_tag Concurrency_tag;
#endif
// Triangulation
typedef CGAL::Mesh_triangulation_3<Mesh_domain, CGAL::Default, Concurrency_tag>::type Tr;
typedef CGAL::Mesh_complex_3_in_triangulation_3<Tr> C3t3;
// 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");
CGAL::Image_3 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 criteria(params::facet_angle(30).facet_size(6).facet_distance(2).
cell_radius_edge_ratio(3).cell_size(8));
C3t3 c3t3;
initialize_triangulation_from_gray_image(c3t3,
domain,
image,
criteria,
2.9f,//isolevel
Image_word_type(0));
CGAL::refine_mesh_3(c3t3, domain, criteria);
CGAL::dump_c3t3(c3t3, "out");
return 0;
}
CGAL::Exact_predicates_inexact_constructions_kernel
CGAL::Image_3
The class Image_3 is a C++ wrapper around the InrImage library.
Definition: Image_3.h:11
CGAL::Image_3::read
bool read(const char *file)
Open a 3D image file.
CGAL::Labeled_mesh_domain_3
The class Labeled_mesh_domain_3 implements indexed domains.
Definition: Labeled_mesh_domain_3.h:357
CGAL::Mesh_complex_3_in_triangulation_3
CGAL::Mesh_criteria_3
The class gathers the refinement criteria for mesh tetrahedra and surface facets where surface facets...
Definition: Mesh_criteria_3.h:192
unspecified_type
CGAL::refine_mesh_3
void refine_mesh_3(C3T3 &c3t3, const MeshDomain &domain, const MeshCriteria &criteria, const NamedParameters &np=parameters::default_values())
The function refine_mesh_3() is a 3D mesh generator.
Definition: refine_mesh_3.h:264
CGAL::parameters
CGAL::Parallel_tag
CGAL::Sequential_tag