/usr/include/CGAL/Nef_3/SHalfedge.h is in libcgal-dev 4.7-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 | // Copyright (c) 1997-2002 Max-Planck-Institute Saarbruecken (Germany).
// All rights reserved.
//
// This file is part of CGAL (www.cgal.org).
// You can redistribute it and/or modify it under the terms of the GNU
// General Public License as published by the Free Software Foundation,
// either version 3 of the License, or (at your option) any later version.
//
// Licensees holding a valid commercial license may use this file in
// accordance with the commercial license agreement provided with the software.
//
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
//
// $URL$
// $Id$
//
//
// Author(s) : Michael Seel <seel@mpi-sb.mpg.de>
// Miguel Granados <granados@mpi-sb.mpg.de>
// Susan Hert <hert@mpi-sb.mpg.de>
// Lutz Kettner <kettner@mpi-sb.mpg.de>
// Peter Hachenberger <hachenberger@mpi-sb.mpg.de>
#ifndef CGAL_NEF_SHALFEDGE_H
#define CGAL_NEF_SHALFEDGE_H
#include <string>
#include <sstream>
#include <CGAL/IO/Verbose_ostream.h>
#include <CGAL/Nef_3/SNC_iteration.h>
#undef CGAL_NEF_DEBUG
#define CGAL_NEF_DEBUG 83
#include <CGAL/Nef_2/debug.h>
#ifndef CGAL_I_DO_WANT_TO_USE_GENINFO
#include <boost/any.hpp>
#endif
namespace CGAL {
template <typename Refs>
class SHalfedge_base {
#ifdef CGAL_I_DO_WANT_TO_USE_GENINFO
typedef void* GenPtr;
#else
typedef boost::any GenPtr;
#endif
typedef typename Refs::Mark Mark;
typedef typename Refs::Sphere_circle Sphere_circle;
typedef typename Refs::Halfedge_handle Halfedge_handle;
typedef typename Refs::Halfedge_const_handle Halfedge_const_handle;
typedef typename Refs::SVertex_handle SVertex_handle;
typedef typename Refs::SVertex_const_handle SVertex_const_handle;
typedef typename Refs::SHalfedge_handle SHalfedge_handle;
typedef typename Refs::SHalfedge_const_handle SHalfedge_const_handle;
typedef typename Refs::SFace_handle SFace_handle;
typedef typename Refs::SFace_const_handle SFace_const_handle;
typedef typename Refs::Halffacet_handle Halffacet_handle;
typedef typename Refs::Halffacet_const_handle Halffacet_const_handle;
typedef typename Refs::SHalfedge_around_facet_circulator
SHalfedge_around_facet_circulator;
typedef typename Refs::SHalfedge_around_sface_circulator
SHalfedge_around_sface_circulator;
// Role within local graph:
SVertex_handle source_;
SHalfedge_handle sprev_, snext_;
SFace_handle incident_sface_;
SHalfedge_handle twin_;
// Topology within global Nef structure:
SHalfedge_handle prev_, next_;
Halffacet_handle facet_;
GenPtr info_;
// temporary needed:
Mark mark_;
Sphere_circle circle_;
public:
SHalfedge_base() : source_(), sprev_(), snext_(),
incident_sface_(), twin_(),
prev_(), next_(), facet_(),
info_(), mark_(), circle_() {}
~SHalfedge_base() {
CGAL_NEF_TRACEN(" destroying SHalfedge_base item "<<&*this);
}
SHalfedge_base(const SHalfedge_base<Refs>& e)
{
source_ = e.source_;
sprev_ = e.sprev_;
snext_ = e.snext_;
incident_sface_ = e.incident_sface_;
twin_ = e.twin_;
prev_ = e.prev_;
next_ = e.next_;
facet_ = e.facet_;
info_ = 0;
mark_ = e.mark_;
circle_ = e.circle_;
}
SHalfedge_base<Refs>& operator=(const SHalfedge_base<Refs>& e)
{
source_ = e.source_;
sprev_ = e.sprev_;
snext_ = e.snext_;
incident_sface_ = e.incident_sface_;
twin_ = e.twin_;
prev_ = e.prev_;
next_ = e.next_;
facet_ = e.facet_;
info_ = 0;
mark_ = e.mark_;
circle_ = e.circle_;
return *this;
}
Mark& mark() { return mark_; }
const Mark& mark() const { return mark_; }
SHalfedge_handle& twin() { return twin_; }
SHalfedge_const_handle twin() const { return twin_; }
SVertex_handle& source() { return source_; }
SVertex_const_handle source() const { return source_; }
SVertex_handle& target() { return twin()->source(); }
SVertex_const_handle target() const { return twin()->source(); }
SHalfedge_handle& prev() { return prev_; }
SHalfedge_const_handle prev() const { return prev_; }
SHalfedge_handle& next() { return next_; }
SHalfedge_const_handle next() const { return next_; }
SHalfedge_handle& sprev() { return sprev_; }
SHalfedge_const_handle sprev() const { return sprev_; }
SHalfedge_handle& snext() { return snext_; }
SHalfedge_const_handle snext() const { return snext_; }
SHalfedge_handle& cyclic_adj_succ()
{ return sprev()->twin(); }
SHalfedge_const_handle cyclic_adj_succ() const
{ return sprev()->twin(); }
SHalfedge_handle& cyclic_adj_pred(SHalfedge_const_handle e)
{ return e->twin()->snext(); }
SHalfedge_const_handle cyclic_adj_pred(SHalfedge_const_handle e) const
{ return e->twin()->snext(); }
Sphere_circle& circle() { return circle_; }
const Sphere_circle& circle() const { return circle_; }
SFace_handle& incident_sface() { return incident_sface_; }
SFace_const_handle incident_sface() const { return incident_sface_; }
Halffacet_handle& facet() { return facet_; }
Halffacet_const_handle facet() const { return facet_; }
GenPtr& info() { return info_; }
const GenPtr& info() const { return info_; }
bool in_outer_facet_cycle() const {
if(++facet()->facet_cycles_begin() ==
facet()->facet_cycles_end()) return true;
const Refs* sncp = source()->source()->sncp();
SHalfedge_around_facet_circulator sfc(this), send(sfc);
do {
if(sncp()->is_boundary_item(sfc))
break;
} while(++sfc != send);
CGAL_assertion(sncp()->is_boundary_item(sfc));
if(sfc == facet()->facet_cycles_begin())
return true;
return false;
}
bool in_inner_facet_cycle() const {
return !in_outer_facet_cycle();
}
bool in_outer_sface_cycle() const {
if(++incident_sface()->sface_cycles_begin() ==
incident_sface()->sface_cycles_end()) return true;
const Refs* sncp = source()->source()->sncp();
SHalfedge_around_sface_circulator sfc(this), send(sfc);
do {
if(sncp()->is_sm_boundary_item(sfc))
break;
} while(++sfc != send);
CGAL_assertion(sncp()->is_sm_boundary_item(sfc));
if(sfc == incident_sface()->sface_cycles_begin())
return true;
return false;
}
bool in_inner_sface_cycle() const {
return !in_outer_sface_cycle();
}
std::string debug() const
{ std::stringstream os;
set_pretty_mode(os);
os <<"e[ "<<source_->debug()<<", "
<<twin_->source_->debug()
#ifdef CGAL_I_DO_WANT_TO_USE_GENINFO
<<" "<<info_
#endif
<<" ] ";
return os.str();
}
bool is_twin() const { return (&*twin_ < this); }
bool is_valid( bool verb = false, int level = 0) const {
Verbose_ostream verr(verb);
verr << "begin CGAL::SNC_items<...>::SHalfedge_base::is_valid( verb=true, "
"level = " << level << "):" << std::endl;
bool valid = (source_ != SVertex_handle() &&
source_ != NULL &&
source_ != Halfedge_handle());
valid = valid && (twin_ != SHalfedge_handle() && twin_ != NULL);
valid = valid && (sprev_ != SHalfedge_handle() && sprev_ != NULL);
valid = valid && (snext_ != SHalfedge_handle() && snext_ != NULL);
valid = valid && (prev_ != SHalfedge_handle() && prev_ != NULL);
valid = valid && (next_ != SHalfedge_handle() && next_ != NULL);
valid = valid && (incident_sface_ != SFace_handle() &&
incident_sface_ != NULL);
valid = valid && (facet_ != Halffacet_handle() &&
facet_ != NULL);
valid = valid && (circle_.d() == 0);
valid = valid && (circle_.a() != 0 || circle_.b() != 0 || circle_.c() !=0);
verr << "end of CGAL::SNC_items<...>::SHalfedge_base::is_valid(): structure is "
<< ( valid ? "valid." : "NOT VALID.") << std::endl;
return valid;
}
}; // SHalfedge_base
} //namespace CGAL
#endif //CGAL_NEF_SHALFEDGE_H
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