371 lines
13 KiB
C
371 lines
13 KiB
C
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// Copyright (c) 1997-2002 Max-Planck-Institute Saarbruecken (Germany).
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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/Nef_3/include/CGAL/Nef_3/Vertex.h $
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// $Id: Vertex.h 0779373 2020-03-26T13:31:46+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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//
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// Author(s) : Michael Seel <seel@mpi-sb.mpg.de>
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// Miguel Granados <granados@mpi-sb.mpg.de>
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// Susan Hert <hert@mpi-sb.mpg.de>
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// Lutz Kettner <kettner@mpi-sb.mpg.de>
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// Peter Hachenberger <hachenberger@mpi-sb.mpg.de>
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#ifndef CGAL_NEF_VERTEX_H
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#define CGAL_NEF_VERTEX_H
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#include <CGAL/license/Nef_3.h>
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#include <string>
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#include <sstream>
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#include <CGAL/IO/io.h>
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#include <CGAL/IO/Verbose_ostream.h>
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#include <CGAL/Nef_3/SNC_iteration.h>
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#undef CGAL_NEF_DEBUG
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#define CGAL_NEF_DEBUG 83
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#include <CGAL/Nef_2/debug.h>
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#ifndef CGAL_I_DO_WANT_TO_USE_GENINFO
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#include <boost/any.hpp>
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#endif
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namespace CGAL {
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template<class Refs>
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class Vertex_base {
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#ifdef CGAL_I_DO_WANT_TO_USE_GENINFO
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typedef void* GenPtr;
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#else
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typedef boost::any GenPtr;
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#endif
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typedef typename Refs::Mark Mark;
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typedef typename Refs::Point_3 Point_3;
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typedef typename Refs::Vertex_handle Vertex_handle;
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typedef typename Refs::SHalfloop_handle SHalfloop_handle;
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typedef typename Refs::Vertex_iterator Vertex_iterator;
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typedef typename Refs::SVertex_iterator SVertex_iterator;
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typedef typename Refs::SHalfedge_iterator SHalfedge_iterator;
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typedef typename Refs::SHalfloop_iterator SHalfloop_iterator;
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typedef typename Refs::SFace_iterator SFace_iterator;
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typedef typename Refs::Vertex_const_iterator Vertex_const_iterator;
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typedef typename Refs::SVertex_const_iterator SVertex_const_iterator;
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typedef typename Refs::SHalfedge_const_iterator SHalfedge_const_iterator;
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typedef typename Refs::SFace_const_iterator SFace_const_iterator;
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typedef typename Refs::SHalfloop_const_handle SHalfloop_const_handle;
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typedef typename Refs::Size_type Size_type;
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Point_3 point_at_center_;
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Mark mark_;
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// local view (surface graph):
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public:
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Refs* sncp_;
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SVertex_iterator svertices_begin_, svertices_last_;
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SHalfedge_iterator shalfedges_begin_, shalfedges_last_;
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SFace_iterator sfaces_begin_, sfaces_last_;
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SHalfloop_iterator shalfloop_;
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GenPtr info_;
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public:
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Vertex_base() : point_at_center_(), mark_(), sncp_(),
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svertices_begin_(), svertices_last_(),
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shalfedges_begin_(), shalfedges_last_(),
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sfaces_begin_(), sfaces_last_(), shalfloop_(),
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info_()
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// , sm_(Vertex_handle((SNC_in_place_list_vertex<Vertex_base>*) this))
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{}
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Vertex_base(const Point_3& p, Mark m) :
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point_at_center_(p), mark_(m), sncp_(),
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svertices_begin_(), svertices_last_(),
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shalfedges_begin_(), shalfedges_last_(),
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sfaces_begin_(), sfaces_last_(), shalfloop_(),
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info_()
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// , sm_(Vertex_handle((SNC_in_place_list_vertex<Vertex_base>*) this))
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{}
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Vertex_base(const Vertex_base<Refs>& v)
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// : sm_(Vertex_handle((SNC_in_place_list_vertex<Vertex_base>*)this))
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{
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point_at_center_ = v.point_at_center_;
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mark_ = v.mark_;
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sncp_ = v.sncp_;
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svertices_begin_ = v.svertices_begin_;
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svertices_last_ = v.svertices_last_;
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shalfedges_begin_ = v.shalfedges_begin_;
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shalfedges_last_ = v.shalfedges_last_;
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sfaces_begin_ = v.sfaces_begin_;
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sfaces_last_ = v.sfaces_last_;
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shalfloop_ = v.shalfloop_;
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info_ = 0;
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}
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Vertex_base<Refs>& operator=(const Vertex_base<Refs>& v)
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{ if (this == &v) return *this;
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point_at_center_ = v.point_at_center_;
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mark_ = v.mark_;
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sncp_ = v.sncp_;
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svertices_begin_ = v.svertices_begin_;
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svertices_last_ = v.svertices_last_;
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shalfedges_begin_ = v.shalfedges_begin_;
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shalfedges_last_ = v.shalfedges_last_;
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sfaces_begin_ = v.sfaces_begin_;
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sfaces_last_ = v.sfaces_last_;
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shalfloop_ = v.shalfloop_;
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return *this;
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}
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Refs* sncp() const { return sncp_; }
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Refs*& sncp() { return sncp_; }
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/* all sobjects of the local graph are stored in a global list
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where each vertex has a continous range in each list for its
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sobjects. All objects of the range [sxxx_begin_,sxxx_last_]
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belong to a vertex. This range is empty iff
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sxxx_begin_ == sxxx_last_ == sncp()->sxxx_end()
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( the latter being the standard end iterator of the
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corresponding list )
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for the past the end iterator we have to increment sxxx_last_
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once iff the range is non-empty. */
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void init_range(SVertex_iterator it)
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{ svertices_begin_ = svertices_last_ = it; }
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void init_range(SHalfedge_iterator it)
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{ shalfedges_begin_ = shalfedges_last_ = it; }
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void init_range(SFace_iterator it)
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{ sfaces_begin_ = sfaces_last_ = it; }
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SVertex_iterator& svertices_begin()
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{ return svertices_begin_; }
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SVertex_iterator& svertices_last()
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{ return svertices_last_; }
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SVertex_iterator svertices_end()
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{ if ( svertices_last_ == sncp()->svertices_end() )
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return svertices_last_;
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else
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return ++SVertex_iterator(svertices_last_); }
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SHalfedge_iterator& shalfedges_begin()
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{ return shalfedges_begin_; }
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SHalfedge_iterator& shalfedges_last()
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{ return shalfedges_last_; }
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SHalfedge_iterator shalfedges_end()
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{ if ( shalfedges_last_ == sncp()->shalfedges_end() )
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return shalfedges_last_;
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else
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return ++SHalfedge_iterator(shalfedges_last_); }
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SFace_iterator& sfaces_begin()
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{ return sfaces_begin_; }
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SFace_iterator& sfaces_last()
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{ return sfaces_last_; }
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SFace_iterator sfaces_end()
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{ if ( sfaces_last_ == sncp()->sfaces_end() )
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return sfaces_last_;
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else
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return ++SFace_iterator(sfaces_last_); }
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SVertex_const_iterator svertices_begin() const
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{ return svertices_begin_; }
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SVertex_const_iterator svertices_last() const
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{ return svertices_last_; }
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SVertex_const_iterator svertices_end() const
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{ if ( svertices_last_ == sncp()->svertices_end() )
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return svertices_last_;
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else
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return ++SVertex_const_iterator(svertices_last_); }
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SHalfedge_const_iterator shalfedges_begin() const
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{ return shalfedges_begin_; }
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SHalfedge_const_iterator shalfedges_last() const
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{ return shalfedges_last_; }
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SHalfedge_const_iterator shalfedges_end() const
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{ if ( shalfedges_last_ == sncp()->shalfedges_end() )
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return shalfedges_last_;
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else
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return ++SHalfedge_const_iterator(shalfedges_last_); }
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SFace_const_iterator sfaces_begin() const
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{ return sfaces_begin_; }
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SFace_const_iterator sfaces_last() const
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{ return sfaces_last_; }
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SFace_const_iterator sfaces_end() const
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{ if ( sfaces_last_ == sncp()->sfaces_end() )
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return sfaces_last_;
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else
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return ++SFace_const_iterator(sfaces_last_); }
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SHalfloop_handle& shalfloop() { return shalfloop_; }
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SHalfloop_handle shalfloop() const { return shalfloop_; }
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bool has_shalfloop() const {
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return shalfloop_ != sncp()->shalfloops_end();
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}
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Size_type number_of_svertices() const
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/*{\Mop returns the number of vertices.}*/
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{ Size_type n(0);
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SVertex_const_iterator vit;
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CGAL_forall_svertices(vit, *this) ++n;
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return n; }
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Size_type number_of_shalfedges() const
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/*{\Mop returns the number of halfedges.}*/
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{ Size_type n(0);
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SHalfedge_const_iterator eit;
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CGAL_forall_shalfedges(eit, *this) ++n;
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return n;}
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Size_type number_of_sedges() const
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/*{\Mop returns the number of edges.}*/
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{ return number_of_shalfedges()/2; }
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Size_type number_of_shalfloops() const
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/*{\Mop returns the number of halfloops.}*/
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{ return ( has_shalfloop() ? 2 : 0); }
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Size_type number_of_sloops() const
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/*{\Mop returns the number of loops.}*/
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{ return number_of_shalfloops()/2; }
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Size_type number_of_sfaces() const
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/*{\Mop returns the number of faces.}*/
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{ Size_type n(0);
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SFace_const_iterator fit;
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CGAL_forall_sfaces(fit, *this) ++n;
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return n; }
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/*{\Xtext Vertices provide access to their local graphs via
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the iterator ranges:
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\begin{Mverb}
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SVertex_iterator svertices_begin()/svertices_end()
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SHalfedge_iterator shalfedges_begin()/shalfedges_end()
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SFace_iterator sfaces_begin()/sfaces_end()
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SHalfloop_handle shalfloop()
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\end{Mverb}
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}*/
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void clear()
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/*{\Xop clears the local graph.}*/ {
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SFace_iterator fit = sfaces_begin(),
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fend = sfaces_end();
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while (fit != fend) {
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SFace_iterator fdel = fit++;
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/* TO VERIFY: next statement needs access to a private attribute */
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sncp()->reset_sm_object_list(fdel->boundary_entry_objects_);
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sncp()->delete_sface_only(fdel);
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}
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sfaces_begin_ = sfaces_last_ = sncp()->sfaces_end();
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if ( shalfloop() != sncp()->shalfloops_end() ) {
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sncp()->delete_shalfloop_only(shalfloop_->twin());
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sncp()->delete_shalfloop_only(shalfloop_);
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shalfloop_ = sncp()->shalfloops_end();
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}
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SHalfedge_iterator eit = shalfedges_begin(),
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eend = shalfedges_end();
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while (eit != eend) {
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SHalfedge_iterator edel = eit++;
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sncp()->delete_shalfedge_only(edel);
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}
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shalfedges_begin_ = shalfedges_last_ = sncp()->shalfedges_end();
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SVertex_iterator vit = svertices_begin(),
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vend = svertices_end();
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while (vit != vend) {
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SVertex_iterator vdel = vit++;
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sncp()->delete_halfedge_only(vdel);
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}
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svertices_begin_ = svertices_last_ = sncp()->halfedges_end();
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}
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Point_3& point() { return point_at_center_; }
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const Point_3& point() const { return point_at_center_; }
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Mark& mark() { return mark_; }
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const Mark& mark() const { return mark_;}
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GenPtr& info() { return info_; }
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const GenPtr& info() const { return info_; }
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~Vertex_base() {
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CGAL_NEF_TRACEN(" destroying Vertex item "<<&*this);
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}
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public:
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std::string debug() const
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{ std::stringstream os;
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set_pretty_mode(os);
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os<<"{ addr, point, mark, snc, svb, sve, seb, see, sfb, sfe, sl,"
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<<" info }"<<std::endl;
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os<<"{ "<<this<<", "<<point_at_center_<<", "<<mark_<<", "<<&*sncp_<<", "
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<<&*svertices_begin_ <<", "<<&*svertices_last_ <<", "
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<<&*shalfedges_begin_<<", "<<&*shalfedges_last_<<", "
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<<&*sfaces_begin_ <<", "<<&*sfaces_last_ <<", "
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<<&*shalfloop_ <<", "
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<<info_<<" }";
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return os.str();
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}
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bool check_basic_functions() {
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/*
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if(svertices_begin_ == sncp()->svertices_end())
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CGAL_assertion(svertices_end() == sncp()->svertices_end());
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if(shalfedges_begin_ == sncp()->shalfedges_end())
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CGAL_assertion(shalfedges_end() == sncp()->shalfedges_end());
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if(sfaces_begin_ == sncp()->sfaces_end())
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CGAL_assertion(sfaces_end() == sncp()->sfaces_end());
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*/
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return true;
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}
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bool is_valid( bool verb = false, int level = 0) const {
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Verbose_ostream verr(verb);
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verr << "begin CGAL::SNC_items<...>::Vertex_base::is_valid( verb=true, "
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"level = " << level << "):" << std::endl;
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bool valid = (sncp_ != nullptr);
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valid = valid && (svertices_begin_ != nullptr && svertices_begin_ != SVertex_iterator());
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valid = valid && (svertices_last_ != nullptr && svertices_last_ != SVertex_iterator());
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valid = valid && (shalfedges_begin_ != nullptr && shalfedges_begin_ != SHalfedge_iterator());
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valid = valid && (shalfedges_last_ != nullptr && shalfedges_last_ != SHalfedge_iterator());
|
||
|
|
valid = valid && (sfaces_begin_ != nullptr && sfaces_begin_ != SFace_iterator());
|
||
|
|
valid = valid && (sfaces_last_ != nullptr && sfaces_last_ != SFace_iterator());
|
||
|
|
valid = valid && (shalfloop_ != nullptr && shalfloop_ != SHalfloop_iterator());
|
||
|
|
|
||
|
|
if(shalfedges_begin_ == sncp()->shalfedges_end()) { // point in volume or on plane, which is either isolated or has one outgoing edge
|
||
|
|
if(shalfloop_ != sncp()->shalfloops_end())
|
||
|
|
valid = valid && (++SFace_const_iterator(sfaces_begin_) == sfaces_last_);
|
||
|
|
else
|
||
|
|
valid = valid && (sfaces_begin_ == sfaces_last_);
|
||
|
|
}
|
||
|
|
|
||
|
|
valid = valid && (sfaces_begin_ != sncp()->sfaces_end());
|
||
|
|
if(sfaces_begin_ == sfaces_last_) {
|
||
|
|
valid = valid && (shalfloop_ == sncp()->shalfloops_end());
|
||
|
|
}
|
||
|
|
else
|
||
|
|
valid = valid && (sfaces_begin_->sface_cycles_begin() !=
|
||
|
|
sfaces_begin_->sface_cycles_end());
|
||
|
|
|
||
|
|
verr << "end of CGAL::SNC_items<...>::Vertex_base::is_valid(): structure is "
|
||
|
|
<< ( valid ? "valid." : "NOT VALID.") << std::endl;
|
||
|
|
return valid;
|
||
|
|
}
|
||
|
|
|
||
|
|
}; // Vertex_base
|
||
|
|
|
||
|
|
|
||
|
|
} //namespace CGAL
|
||
|
|
#endif // CGAL_NEF_VERTEX_H
|