mirror of https://github.com/CGAL/cgal
50 lines
1.3 KiB
C++
50 lines
1.3 KiB
C++
#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/Implicit_mesh_domain_3.h>
|
|
#include <CGAL/make_mesh_3.h>
|
|
|
|
// Domain
|
|
typedef CGAL::Exact_predicates_inexact_constructions_kernel K;
|
|
typedef K::FT FT;
|
|
typedef K::Point_3 Point;
|
|
typedef FT (Function)(const Point&);
|
|
typedef CGAL::Implicit_mesh_domain_3<Function,K> Mesh_domain;
|
|
|
|
// Triangulation
|
|
typedef CGAL::Mesh_triangulation_3<Mesh_domain>::type Tr;
|
|
typedef CGAL::Mesh_complex_3_in_triangulation_3<Tr> C3t3;
|
|
|
|
// Criteria
|
|
typedef CGAL::Mesh_criteria_3<Tr> Mesh_criteria;
|
|
|
|
// To avoid verbose function and named parameters call
|
|
using namespace CGAL::parameters;
|
|
|
|
// Function
|
|
FT sphere_function (const Point& p)
|
|
{ return CGAL::squared_distance(p, Point(CGAL::ORIGIN))-1; }
|
|
|
|
int main()
|
|
{
|
|
// Domain (Warning: Sphere_3 constructor uses squared radius !)
|
|
Mesh_domain domain(sphere_function, K::Sphere_3(CGAL::ORIGIN, 2.));
|
|
|
|
// Mesh criteria
|
|
Mesh_criteria criteria(facet_angle=30, facet_size=0.1, facet_distance=0.025,
|
|
cell_radius_edge_ratio=2, cell_size=0.1);
|
|
|
|
// Mesh generation
|
|
C3t3 c3t3 = CGAL::make_mesh_3<C3t3>(domain, criteria);
|
|
|
|
// Output
|
|
std::ofstream medit_file("out.mesh");
|
|
c3t3.output_to_medit(medit_file);
|
|
|
|
return 0;
|
|
}
|
|
|