CGAL 6.0 - Planar Parameterization of Triangulated Surface Meshes
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CGAL::Surface_mesh_parameterization::Two_vertices_parameterizer_3< TriangleMesh_ > Class Template Reference

#include <CGAL/Surface_mesh_parameterization/Two_vertices_parameterizer_3.h>

Definition

template<typename TriangleMesh_>
class CGAL::Surface_mesh_parameterization::Two_vertices_parameterizer_3< TriangleMesh_ >

The class Two_vertices_parameterizer_3 parameterizes two extreme vertices of a 3D surface.

This kind of border parameterization is used by free border parameterizations.

Implementation note: To simplify the implementation, the border parameterizer knows only the TriangleMesh class and does not know the parameterization algorithm requirements or the kind of sparse linear system used.

Is model of
Parameterizer_3
Template Parameters
TriangleMesh_must be a model of FaceGraph.

Public Types

typedef TriangleMesh_ Triangle_mesh
 Triangle mesh type.
 
typedef boost::graph_traits< Triangle_mesh >::vertex_descriptor vertex_descriptor
 Mesh vertex type.
 
typedef boost::graph_traits< Triangle_mesh >::halfedge_descriptor halfedge_descriptor
 Mesh halfedge type.
 

Public Member Functions

 Two_vertices_parameterizer_3 ()
 Constructor.
 
 Two_vertices_parameterizer_3 (vertex_descriptor v1, vertex_descriptor v2)
 Constructor where fixed vertices are provided.
 
template<typename VertexUVmap , typename VertexIndexMap , typename VertexParameterizedMap >
Error_code parameterize (const Triangle_mesh &mesh, halfedge_descriptor bhd, VertexUVmap uvmap, VertexIndexMap vimap, VertexParameterizedMap vpmap)
 maps two extreme vertices of the 3D mesh and mark them as parameterized.
 
bool is_border_convex () const
 indicates if the border's shape is convex.
 

Member Function Documentation

◆ is_border_convex()

template<typename TriangleMesh_ >
bool CGAL::Surface_mesh_parameterization::Two_vertices_parameterizer_3< TriangleMesh_ >::is_border_convex ( ) const

indicates if the border's shape is convex.

Meaningless for free border parameterization algorithms.

◆ parameterize()

template<typename TriangleMesh_ >
template<typename VertexUVmap , typename VertexIndexMap , typename VertexParameterizedMap >
Error_code CGAL::Surface_mesh_parameterization::Two_vertices_parameterizer_3< TriangleMesh_ >::parameterize ( const Triangle_mesh mesh,
halfedge_descriptor  bhd,
VertexUVmap  uvmap,
VertexIndexMap  vimap,
VertexParameterizedMap  vpmap 
)

maps two extreme vertices of the 3D mesh and mark them as parameterized.

Template Parameters
VertexUVmapmust be a model of ReadWritePropertyMap with boost::graph_traits<Triangle_mesh>::vertex_descriptor as key type and Point_2 (type deduced from Triangle_mesh using Kernel_traits) as value type.
VertexIndexMapmust be a model of ReadablePropertyMap with boost::graph_traits<Triangle_mesh>::vertex_descriptor as key type and a unique integer as value type.
VertexParameterizedMapmust be a model of ReadWritePropertyMap with boost::graph_traits<Triangle_mesh>::vertex_descriptor as key type and a Boolean as value type.
Parameters
mesha triangulated surface.
bhda halfedge descriptor on the boundary of mesh.
uvmapan instantiation of the class VertexUVmap.
vimapan instantiation of the class VertexIndexMap.
vpmapan instantiation of the class VertexParameterizedMap.
Precondition
mesh must be a triangular mesh.
The vertices must be indexed (vimap must be initialized).