The class Mesh_vertex_base_3<MD,Gt,Vb> is a model of the concept MeshVertexBase_3. It is designed to serve as vertex base class for the 3D triangulation used in a 3D mesh generation process.
The template parameter MD provides the types of indices used to identify the faces of the input complex. It must be a model of the concept MeshDomain_3.
The template parameter Gt is the geometric traits class. It must be a model of the concept RegularTriangulationTraits_3.
The third parameter Vb is the vertex base class. It has to be a model of the concept TriangulationVertexBase_3 and defaults to Triangulation_vertex_base_3<Gt>.
#include <CGAL/Mesh_vertex_base_3.h>
MeshVertexBase_3
CGAL::Mesh_complex_3_in_triangulation_3<Tr,CornerIndex,CurveSegmentIndex>