153 lines
4.2 KiB
C++
153 lines
4.2 KiB
C++
// Copyright (c) 2009-2014 INRIA Sophia-Antipolis (France).
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// All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org).
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//
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// $URL: https://github.com/CGAL/cgal/blob/v5.1/Triangulation/include/CGAL/Triangulation_ds_vertex.h $
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// $Id: Triangulation_ds_vertex.h d1a323c 2020-03-26T19:24:14+01:00 Sébastien Loriot
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// SPDX-License-Identifier: GPL-3.0-or-later OR LicenseRef-Commercial
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//
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// Author(s) : Samuel Hornus
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#ifndef CGAL_TRIANGULATION_DS_VERTEX_H
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#define CGAL_TRIANGULATION_DS_VERTEX_H
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#include <CGAL/license/Triangulation.h>
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#include <CGAL/disable_warnings.h>
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#include <CGAL/Compact_container.h>
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#include <CGAL/internal/Triangulation/Dummy_TDS.h>
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namespace CGAL {
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/* The template parameter TDS must be a model of the concept
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* 'TriangulationDataStructure' that stores vertices of type
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* 'Triangulation_ds_vertex<TDS>'
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*/
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template< class TDS = void >
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class Triangulation_ds_vertex
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{
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typedef Triangulation_ds_vertex<TDS> Self;
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public:
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typedef TDS Triangulation_data_structure;
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typedef typename TDS::Full_cell_handle Full_cell_handle; /* Concept */
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template <typename TDS2>
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struct Rebind_TDS /* Concept */
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{
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typedef Triangulation_ds_vertex<TDS2> Other;
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};
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protected: // DATA MEMBERS
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Full_cell_handle full_cell_; // A handle to an incident full_cell
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public:
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// Constructs a vertex with incident full_cell 's'
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Triangulation_ds_vertex(Full_cell_handle s) : full_cell_(s) /* Concept */
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{
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CGAL_assertion( Full_cell_handle() != s );
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}
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// Constructs a vertex with no incident full_cell
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Triangulation_ds_vertex() : full_cell_() {} /* Concept */
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~Triangulation_ds_vertex() {}
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/// Set 's' as an incident full_cell
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void set_full_cell(Full_cell_handle s) /* Concept */
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{
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full_cell_ = s;
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}
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/// Returns a full_cell incident to the vertex
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Full_cell_handle full_cell() const /* Concept */
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{
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return full_cell_;
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}
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bool is_valid(bool verbose = false, int /* level */ = 0) const /* Concept */
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{
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if( Full_cell_handle() == full_cell() )
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{
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if( verbose )
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CGAL_warning_msg(false, "vertex has no incident full cell.");
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return false;
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}
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bool found(false);
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// These two typename below are OK because TDS fulfils the
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// TriangulationDataStructure concept.
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typename TDS::Full_cell::Vertex_handle_iterator vit(full_cell()->vertices_begin());
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typedef typename TDS::Vertex_handle Vertex_handle;
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while( vit != full_cell()->vertices_end() )
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{
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if( Vertex_handle() == *vit )
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break; // The full cell has no more vertices
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if( this == &(**vit) )
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{
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found = true;
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break;
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}
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++vit;
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}
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if( ! found )
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{
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if( verbose )
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CGAL_warning_msg(false, "vertex's adjacent full cell does not contain that vertex.");
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return false;
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}
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return true;
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}
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public: // FOR MEMORY MANAGEMENT
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void* for_compact_container() const { return full_cell_.for_compact_container(); }
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void for_compact_container(void *p){ full_cell_.for_compact_container(p); }
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}; // end of Triangulation_ds_vertex
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// FUNCTIONS THAT ARE NOT MEMBER FUNCTIONS:
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template < class TDS >
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std::istream &
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operator>>(std::istream & is, Triangulation_ds_vertex<TDS> &) /* Concept */
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{
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/*if( is_ascii(is) )
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{}
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else {}*/
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return is;
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}
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template< class TDS >
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std::ostream &
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operator<<(std::ostream & os, const Triangulation_ds_vertex<TDS> &) /* Concept */
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{
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/*if( is_ascii(os) )
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{
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os << '\n';
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}
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else {}*/
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return os;
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}
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// Special case: specialization when template parameter is void.
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template<>
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class Triangulation_ds_vertex<void>
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{
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public:
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typedef internal::Triangulation::Dummy_TDS Triangulation_data_structure;
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typedef Triangulation_data_structure::Full_cell_handle Full_cell_handle; /* Concept */
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template <typename TDS2>
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struct Rebind_TDS /* Concept */
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{
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typedef Triangulation_ds_vertex<TDS2> Other;
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};
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};
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} //namespace CGAL
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#include <CGAL/enable_warnings.h>
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#endif // CGAL_TRIANGULATION_DS_VERTEX_H
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