The class Segment_Voronoi_diagram_hierarchy_vertex_base_2<Vbb> provides a model for the SegmentVoronoiDiagramHierarchyVertexBase_2 concept, which is the vertex base required by the Segment_Voronoi_diagram_hierarchy_2<Gt,DS> class. The class Segment_Voronoi_diagram_hierarchy_vertex_base_2<Vbb> is templated by a class Vbb which must be a model of the SegmentVoronoiDiagramVertexBase_2 concept.
#include <CGAL/Segment_Voronoi_diagram_hierarchy_vertex_base_2.h>