CGAL 5.2  CGAL and the Boost Graph Library

#include <CGAL/boost/graph/Seam_mesh.h>
This class is a data structure that takes a triangle mesh, further refered to as underlying mesh
and turns some marked edges of that mesh into virtual boundary edges.
Note that a seam edge must be an edge of the underlying mesh that is not a border edge (that is, such that either halfedge or the edge have null_face() as incident face). Marking a border edge as seam will not do anything.
FaceGraph
or FaceListGraph
, depending on the underlying mesh TM
.TM  a model of FaceGraph or FaceListGraph 
SEM  a model of ReadablePropertyMap with boost::graph_traits<TM>::edge_descriptor as key type and bool as value type. 
SVM  a model of ReadablePropertyMap with boost::graph_traits<TM>::vertex_descriptor as key type and bool as value type. 
Classes  
class  edge_descriptor 
This class represents an edge of the seam mesh. More...  
class  halfedge_descriptor 
This class represents a halfedge of the seam mesh. More...  
class  vertex_descriptor 
This class represents a vertex of the seam mesh. More...  
Public Types  
typedef TM  Triangle_mesh 
The underlying mesh type.  
typedef boost::graph_traits< TM >::face_descriptor  face_descriptor 
This class represents a face of the seam mesh. More...  
Public Member Functions  
const TM &  mesh () const 
returns the underlying mesh.  
Seam_mesh (const TM &tm, const SEM &sem, const SVM svm)  
constructs a seam mesh for a triangle mesh and an edge and vertex property map More...  
Underlying mesh's descriptor and iterator typedefs  
typedef boost::graph_traits< TM >::vertex_descriptor  TM_vertex_descriptor 
The type for the objects used to identify vertices in the underlying mesh.  
typedef boost::graph_traits< TM >::halfedge_descriptor  TM_halfedge_descriptor 
The type for the objects used to identify halfedges in the underlying mesh.  
typedef boost::graph_traits< TM >::halfedge_iterator  TM_halfedge_iterator 
The type for the iterators that traverse through the complete halfedge set of the underlying mesh.  
typedef boost::graph_traits< TM >::edge_descriptor  TM_edge_descriptor 
The type for the objects used to identify edges in the underlying mesh.  
Size types  
typedef boost::graph_traits< TM >::degree_size_type  degree_size_type 
The unsigned integer type used for representing the degree of vertices in the seam mesh.  
typedef boost::graph_traits< TM >::vertices_size_type  vertices_size_type 
The unsigned integer type used to represent the number of vertices in the seam mesh.  
typedef boost::graph_traits< TM >::edges_size_type  edges_size_type 
The unsigned integer type used for representing the number of edges in the seam mesh.  
typedef boost::graph_traits< TM >::halfedges_size_type  halfedges_size_type 
The unsigned integer type used for representing the number of halfedges in the seam mesh.  
typedef boost::graph_traits< TM >::faces_size_type  faces_size_type 
The unsigned integer type used for representing the number of faces in the seam mesh.  
Seam query functions  
bool  has_on_seam (TM_vertex_descriptor vd) const 
returns true if the vertex is on the seam.  
bool  has_on_seam (TM_edge_descriptor ed) const 
returns true if the edge is on the seam.  
bool  has_on_seam (TM_halfedge_descriptor tmhd) const 
returns true if the halfedge is on the seam.  
bool  has_on_seam (const halfedge_descriptor &hd) const 
returns true if the halfedge is on the seam.  
edges_size_type  number_of_seam_edges () const 
returns the number of seam edges in the seam mesh.  
Range Types  
Iterator_range< vertex_iterator >  vertices () const 
returns the iterator range of the vertices of the mesh.  
Iterator_range< halfedge_iterator >  halfedges () const 
returns the iterator range of the halfedges of the mesh.  
Iterator_range< edge_iterator >  edges () const 
returns the iterator range of the edges of the mesh.  
Iterator_range< face_iterator >  faces () const 
returns the iterator range of the faces of the mesh.  
Memory Management  
vertices_size_type  num_vertices () const 
returns the number of vertices in the seam mesh.  
halfedges_size_type  num_halfedges () const 
returns the number of halfedges in the seam mesh.  
halfedges_size_type  num_edges () const 
returns the number of edges in the seam mesh.  
faces_size_type  num_faces () const 
returns the number of faces in the seam mesh.  
Degree Functions  
degree_size_type  degree (vertex_descriptor v) const 
returns the number of incident halfedges of vertex v .  
Seam selection  
bool  add_seam (TM_vertex_descriptor tm_vd_s, TM_vertex_descriptor tm_vd_t) 
marks the edge of the underlying mesh that has extremities the vertices tm_vd_s and tm_vd_s as a seam edge. More...  
template<class InputIterator >  
TM_halfedge_descriptor  add_seams (InputIterator first, InputIterator last) 
creates new seams. More...  
template<typename VdContainer >  
TM_halfedge_descriptor  add_seams (std::ifstream &in, const VdContainer &tm_vds) 
creates new seams. More...  
TM_halfedge_descriptor  add_seams (std::ifstream &in) 
creates new seams. More...  
template<typename VdContainer >  
TM_halfedge_descriptor  add_seams (const char *filename, const VdContainer &tm_vds) 
creates new seams. More...  
TM_halfedge_descriptor  add_seams (const char *filename) 
creates new seams. More...  
typedef boost::graph_traits<TM>::face_descriptor CGAL::Seam_mesh< TM, SEM, SVM >::face_descriptor 
This class represents a face of the seam mesh.
CGAL::Seam_mesh< TM, SEM, SVM >::Seam_mesh  (  const TM &  tm, 
const SEM &  sem,  
const SVM  svm  
) 
constructs a seam mesh for a triangle mesh and an edge and vertex property map
tm  the underlying mesh 
sem  the edge property map with value true for seam edges 
svm  the vertex property map with value true for seam vertices 
bool CGAL::Seam_mesh< TM, SEM, SVM >::add_seam  (  TM_vertex_descriptor  tm_vd_s, 
TM_vertex_descriptor  tm_vd_t  
) 
marks the edge of the underlying mesh that has extremities the vertices tm_vd_s
and tm_vd_s
as a seam edge.
tm_vd_s
and tm_vd_s
,tm_vd_s
and tm_vd_s
is a border edge, ortm_vd_s
and tm_vd_s
is already a seam edge. TM_halfedge_descriptor CGAL::Seam_mesh< TM, SEM, SVM >::add_seams  (  InputIterator  first, 
InputIterator  last  
) 
creates new seams.
The edges to be marked as seams are described by the range [first, last) of vertices of the underlying mesh. Each edge to be marked is described by two consecutive iterators.
InputIterator
. InputIterator
must be boost::graph_traits<TM>::vertex_descriptor
. TM_halfedge_descriptor CGAL::Seam_mesh< TM, SEM, SVM >::add_seams  (  std::ifstream &  in, 
const VdContainer &  tm_vds  
) 
creates new seams.
A seam edge is described by a pair of integers. The integer index of a vertex of the underlying mesh is given by its position in the container tm_vds
.
VdContainer  must be a model of SequenceContainer (that is, provide the functions: operator[] and at() ). 
TM_halfedge_descriptor CGAL::Seam_mesh< TM, SEM, SVM >::add_seams  (  std::ifstream &  in  ) 
creates new seams.
A seam edge is described by a pair of integers. The integer index of a vertex of the underlying mesh is defined as its position when iterating over the vertices of the underlying mesh with boost::graph_traits<TM>::vertices()
.
TM_halfedge_descriptor CGAL::Seam_mesh< TM, SEM, SVM >::add_seams  (  const char *  filename, 
const VdContainer &  tm_vds  
) 
creates new seams.
A seam edge is described by a pair of integers. The integer index of a vertex of the underlying mesh is given by its position in the container tm_vds
.
VdContainer  must be a model of SequenceContainer (that is, provide the functions: operator[] and at() ). 
TM_halfedge_descriptor CGAL::Seam_mesh< TM, SEM, SVM >::add_seams  (  const char *  filename  ) 
creates new seams.
A seam edge is described by a pair of integers. The integer index of a vertex of the underlying mesh is defined as its position when iterating over the vertices of the underlying mesh with boost::graph_traits<TM>::vertices()
.