mirror of https://github.com/CGAL/cgal
66 lines
2.0 KiB
C++
66 lines
2.0 KiB
C++
#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
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#include <CGAL/Mesh_triangulation_3.h>
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#include <CGAL/Mesh_complex_3_in_triangulation_3.h>
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#include <CGAL/Mesh_criteria_3.h>
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#include <CGAL/Labeled_image_mesh_domain_3.h>
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#include <CGAL/make_mesh_3.h>
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#include <CGAL/Image_3.h>
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// Domain
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typedef CGAL::Exact_predicates_inexact_constructions_kernel K;
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typedef CGAL::Labeled_image_mesh_domain_3<CGAL::Image_3,K> Mesh_domain;
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// Triangulation
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#ifdef CGAL_CONCURRENT_MESH_3
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typedef CGAL::Mesh_triangulation_3<
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Mesh_domain,
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CGAL::Kernel_traits<Mesh_domain>::Kernel, // Same as sequential
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CGAL::Parallel_tag // Tag to activate parallelism
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>::type Tr;
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#else
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typedef CGAL::Mesh_triangulation_3<Mesh_domain>::type Tr;
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#endif
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typedef CGAL::Mesh_complex_3_in_triangulation_3<Tr> C3t3;
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// Mesh Criteria
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typedef CGAL::Mesh_criteria_3<Tr> Mesh_criteria;
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// To avoid verbose function and named parameters call
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using namespace CGAL::parameters;
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int main()
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{
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// Domain
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CGAL::Image_3 image;
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image.read("data/liver.inr.gz");
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Mesh_domain domain(image);
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// Mesh criteria
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Mesh_criteria criteria(facet_angle=30, facet_distance=1.2,
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cell_radius_edge_ratio=2);
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// Mesh generation and optimization in one call
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C3t3 c3t3 = CGAL::make_mesh_3<C3t3>(domain, criteria,
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lloyd(time_limit=30),
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no_perturb(),
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exude(time_limit=10, sliver_bound=10));
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// Mesh generation and optimization in several call
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C3t3 c3t3_bis = CGAL::make_mesh_3<C3t3>(domain, criteria,
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no_perturb(), no_exude());
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CGAL::lloyd_optimize_mesh_3(c3t3_bis, domain, time_limit=30);
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CGAL::exude_mesh_3(c3t3_bis, sliver_bound=10, time_limit=10);
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// Output
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std::ofstream medit_file("out.mesh");
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c3t3.output_to_medit(medit_file);
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std::ofstream medit_file_bis("out_bis.mesh");
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c3t3_bis.output_to_medit(medit_file_bis);
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return 0;
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}
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