mirror of https://github.com/CGAL/cgal
79 lines
2.4 KiB
C++
79 lines
2.4 KiB
C++
#include <cassert>
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#include "test_meshing_utilities.h"
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#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/Polyhedral_mesh_domain_with_features_3.h>
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#include <CGAL/make_mesh_3.h>
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#include <sstream>
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template <typename K>
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struct Polyhedron_tester : public Tester<K>
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{
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void polyhedron() const
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{
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// Domain
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typedef CGAL::Polyhedral_mesh_domain_with_features_3<K> Mesh_domain;
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typedef typename CGAL::Mesh_polyhedron_3<K>::type MeshPolyhedron_3;
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// Triangulation
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typedef typename CGAL::Mesh_triangulation_3<Mesh_domain>::type Tr;
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typedef CGAL::Mesh_complex_3_in_triangulation_3<Tr,
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typename Mesh_domain::Corner_index,
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typename Mesh_domain::Curve_segment_index> C3t3;
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// Criteria
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typedef CGAL::Mesh_criteria_3<Tr> Mesh_criteria;
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MeshPolyhedron_3 P;
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std::stringstream poly("OFF\n"
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"4 4 0\n"
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"0 0 0\n"
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"0 0 1\n"
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"0 1 0\n"
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"1 0 0\n"
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"3 3 1 2\n"
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"3 0 1 3\n"
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"3 0 3 2\n"
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"3 0 2 1\n");
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poly >> P;
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assert(P.size_of_vertices() == 4);
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assert(P.size_of_facets() == 4);
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Mesh_domain domain(P);
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// Get sharp features
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domain.detect_features();
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// Mesh criteria
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using namespace CGAL::parameters;
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const double cs = 0.408248;
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Mesh_criteria criteria(edge_size = cs/2.0,
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facet_angle = 25,
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facet_size = cs,
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facet_distance = cs/10.0,
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cell_radius_edge_ratio = 3,
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cell_size = cs);
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// Mesh generation
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C3t3 c3t3 = CGAL::make_mesh_3<C3t3>(domain, criteria);
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CGAL::remove_far_points_in_mesh_3(c3t3);
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double vol = 1/6.;
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this->verify_c3t3_volume(c3t3, vol*0.95, vol*1.05);
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this->verify_c3t3(c3t3,domain,Polyhedral_tag(),
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55, 65, 110, 125, 85, 120);
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}
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};
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int main() {
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typedef CGAL::Exact_predicates_inexact_constructions_kernel K;
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Polyhedron_tester<K> test_epic;
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std::cerr << "Mesh generation from a polyhedron:\n";
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test_epic.polyhedron();
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return EXIT_SUCCESS;
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}
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