CGAL 5.4  3D Mesh Generation

#include <CGAL/Polyhedral_mesh_domain_with_features_3.h>
The class Polyhedral_mesh_domain_with_features_3
implements a domain whose boundary is a simplicial polyhedral surface.
This surface must be free of intersection. It can either be closed, included inside another polyhedral surface which is closed and free of intersection, or open. In the latter case, the meshing process will only take care of the quality of the 1D (features and boundaries) and 2D (surfaces) components of the mesh.
It is a model of the concept MeshDomainWithFeatures_3
. It also provides a member function to automatically detect sharp features and boundaries from the input polyhedral surface(s).
IGT  stands for a geometric traits class providing the types and functors required to implement the intersection tests and intersection computations for polyhedral boundary surfaces. This parameter has to be instantiated with a model of the concept IntersectionGeometricTraits_3 . 
CGAL::Mesh_domain_with_polyline_features_3<MD>
CGAL::Polyhedral_mesh_domain_3<Polyhedron,IGT,TriangleAccessor>
CGAL::Mesh_polyhedron_3<IGT>
Types  
typedef unspecified_type  FT 
Numerical type.  
Creation  
template<typename Polyhedron >  
Polyhedral_mesh_domain_with_features_3 (const Polyhedron &bounding_polyhedron)  
Constructs a Polyhedral_mesh_domain_with_features_3 from a polyhedral surface of type Polyhedron . More...  
template<typename Polyhedron >  
Polyhedral_mesh_domain_with_features_3 (const Polyhedron &polyhedron, const Polyhedron &bounding_polyhedron)  
Constructs a Polyhedral_mesh_domain_with_features_3 from a polyhedral surface, and a bounding polyhedral surface. More...  
Polyhedral_mesh_domain_with_features_3 (const std::string &filename)  
Operations  
void  detect_features (FT angle_bound=60) 
Detects sharp features and boundaries of the internal bounding polyhedron (and the potential internal polyhedron) and inserts them as features of the domain. More...  
void  detect_borders () 
Detects border edges of the bounding polyhedron and inserts them as features of the domain. More...  
CGAL::Polyhedral_mesh_domain_with_features_3< IGT >::Polyhedral_mesh_domain_with_features_3  (  const Polyhedron &  bounding_polyhedron  ) 
Constructs a Polyhedral_mesh_domain_with_features_3
from a polyhedral surface of type Polyhedron
.
The only requirement on type Polyhedron
is that CGAL::Mesh_polyhedron_3<IGT>::type
should be constructible from Polyhedron
. No feature detection is done at this level. Note that a copy of bounding_polyhedron
will be done. The polyhedron bounding_polyhedron
has to be closed and free of intersections. Its interior of bounding_polyhedron
will be meshed.
CGAL::Polyhedral_mesh_domain_with_features_3< IGT >::Polyhedral_mesh_domain_with_features_3  (  const Polyhedron &  polyhedron, 
const Polyhedron &  bounding_polyhedron  
) 
Constructs a Polyhedral_mesh_domain_with_features_3
from a polyhedral surface, and a bounding polyhedral surface.
CGAL::Mesh_polyhedron_3<IGT>::type
should be constructible from Polyhedron
. The first polyhedron should be entirely included inside bounding_polyhedron
, which has to be closed and free of intersections. Using this constructor allows to mesh a polyhedral surface which is not closed, or has holes. The inside of bounding_polyhedron
will be meshed.
CGAL::Polyhedral_mesh_domain_with_features_3< IGT >::Polyhedral_mesh_domain_with_features_3  (  const std::string &  filename  ) 
Polyhedral_mesh_domain_with_features_3
from an off file.No feature detection is done at this level. Users must read the file into a Polyhedron_3
and call the constructor above.
void CGAL::Polyhedral_mesh_domain_with_features_3< IGT >::detect_borders  (  ) 
Detects border edges of the bounding polyhedron and inserts them as features of the domain.
This function should be called alone only, and not before or after detect_features()
.
void CGAL::Polyhedral_mesh_domain_with_features_3< IGT >::detect_features  (  FT  angle_bound = 60  ) 
Detects sharp features and boundaries of the internal bounding polyhedron (and the potential internal polyhedron) and inserts them as features of the domain.
angle_bound
gives the maximum angle (in degrees) between the two normal vectors of adjacent triangles. For an edge of the polyhedron, if the angle between the two normal vectors of its incident facets is bigger than the given bound, then the edge is considered as a feature edge.