/usr/include/dune/grid/identitygrid/identitygridentity.hh is in libdune-grid-dev 2.4.1-1.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 | // -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
// vi: set et ts=4 sw=2 sts=2:
#ifndef DUNE_IDENTITYGRIDENTITY_HH
#define DUNE_IDENTITYGRIDENTITY_HH
/** \file
* \brief The IdentityGridEntity class
*/
#include <dune/grid/common/grid.hh>
namespace Dune {
// Forward declarations
template<int codim, int dim, class GridImp>
class IdentityGridEntity;
template<int codim, class GridImp, typename HostEntityPointer>
class IdentityGridEntityPointer;
template<int codim, PartitionIteratorType pitype, class GridImp>
class IdentityGridLevelIterator;
template<class GridImp>
class IdentityGridLevelIntersectionIterator;
template<class GridImp>
class IdentityGridLeafIntersectionIterator;
template<class GridImp>
class IdentityGridHierarchicIterator;
// External forward declarations
template< class Grid >
struct HostGridAccess;
//**********************************************************************
//
// --IdentityGridEntity
// --Entity
//
/** \brief The implementation of entities in a IdentityGrid
* \ingroup IdentityGrid
*
* A Grid is a container of grid entities. An entity is parametrized by the codimension.
* An entity of codimension c in dimension d is a d-c dimensional object.
*
*/
template<int codim, int dim, class GridImp>
class IdentityGridEntity :
public EntityDefaultImplementation <codim,dim,GridImp,IdentityGridEntity>
{
template <class GridImp_>
friend class IdentityGridLevelIndexSet;
template <class GridImp_>
friend class IdentityGridLeafIndexSet;
template <class GridImp_>
friend class IdentityGridLocalIdSet;
template <class GridImp_>
friend class IdentityGridGlobalIdSet;
template<int,typename, typename>
friend class IdentityGridEntityPointer;
friend struct HostGridAccess< typename remove_const< GridImp >::type >;
private:
typedef typename GridImp::ctype ctype;
// The codimension of this entitypointer wrt the host grid
enum {CodimInHostGrid = GridImp::HostGridType::dimension - GridImp::dimension + codim};
// EntityPointer to the equivalent entity in the host grid
typedef typename GridImp::HostGridType::Traits::template Codim<CodimInHostGrid>::Entity HostGridEntity;
public:
typedef typename GridImp::template Codim<codim>::Geometry Geometry;
//! The type of the EntitySeed interface class
typedef typename GridImp::template Codim<codim>::EntitySeed EntitySeed;
IdentityGridEntity()
: identityGrid_(nullptr)
{}
IdentityGridEntity(const GridImp* identityGrid, const HostGridEntity& hostEntity)
: hostEntity_(hostEntity)
, identityGrid_(identityGrid)
{}
IdentityGridEntity(const GridImp* identityGrid, HostGridEntity&& hostEntity)
: hostEntity_(std::move(hostEntity))
, identityGrid_(identityGrid)
{}
//! \todo Please doc me !
IdentityGridEntity(const IdentityGridEntity& original)
: hostEntity_(original.hostEntity_)
, identityGrid_(original.identityGrid_)
{}
IdentityGridEntity(IdentityGridEntity&& original)
: hostEntity_(std::move(original.hostEntity_))
, identityGrid_(original.identityGrid_)
{}
//! \todo Please doc me !
IdentityGridEntity& operator=(const IdentityGridEntity& original)
{
if (this != &original)
{
identityGrid_ = original.identityGrid_;
hostEntity_ = original.hostEntity_;
}
return *this;
}
//! \todo Please doc me !
IdentityGridEntity& operator=(IdentityGridEntity&& original)
{
if (this != &original)
{
identityGrid_ = original.identityGrid_;
hostEntity_ = std::move(original.hostEntity_);
}
return *this;
}
bool equals(const IdentityGridEntity& other) const
{
return hostEntity_ == other.hostEntity_;
}
//! returns true if father entity exists
bool hasFather () const {
return hostEntity_.hasFather();
}
//! Create EntitySeed
EntitySeed seed () const
{
return EntitySeed(hostEntity_);
}
//! level of this element
int level () const {
return hostEntity_.level();
}
/** \brief The partition type for parallel computing
*/
PartitionType partitionType () const {
return hostEntity_.partitionType();
}
/** Intra-element access to entities of codimension cc > codim. Return number of entities
* with codimension cc.
*/
template<int cc> int count () const {
return hostEntity_.template count<cc>();
}
//! geometry of this entity
Geometry geometry () const
{
return Geometry( hostEntity_.geometry() );
}
HostGridEntity hostEntity_;
private:
const GridImp* identityGrid_;
};
//***********************
//
// --IdentityGridEntity
//
//***********************
/** \brief Specialization for codim-0-entities.
* \ingroup IdentityGrid
*
* This class embodies the topological parts of elements of the grid.
* It has an extended interface compared to the general entity class.
* For example, Entities of codimension 0 allow to visit all neighbors.
*/
template<int dim, class GridImp>
class IdentityGridEntity<0,dim,GridImp> :
public EntityDefaultImplementation<0,dim,GridImp, IdentityGridEntity>
{
friend struct HostGridAccess< typename remove_const< GridImp >::type >;
template<int,typename, typename>
friend class IdentityGridEntityPointer;
public:
// The codimension of this entitypointer wrt the host grid
enum {CodimInHostGrid = GridImp::HostGridType::dimension - GridImp::dimension};
// EntityPointer to the equivalent entity in the host grid
typedef typename GridImp::HostGridType::Traits::template Codim<CodimInHostGrid>::Entity HostGridEntity;
typedef typename GridImp::template Codim<0>::Geometry Geometry;
typedef typename GridImp::template Codim<0>::LocalGeometry LocalGeometry;
//! The Iterator over intersections on this level
typedef IdentityGridLevelIntersectionIterator<GridImp> LevelIntersectionIterator;
//! The Iterator over intersections on the leaf level
typedef IdentityGridLeafIntersectionIterator<GridImp> LeafIntersectionIterator;
//! Iterator over descendants of the entity
typedef IdentityGridHierarchicIterator<GridImp> HierarchicIterator;
//! The type of the EntitySeed interface class
typedef typename GridImp::template Codim<0>::EntitySeed EntitySeed;
IdentityGridEntity()
: identityGrid_(nullptr)
{}
IdentityGridEntity(const GridImp* identityGrid, const HostGridEntity& hostEntity)
: hostEntity_(hostEntity)
, identityGrid_(identityGrid)
{}
IdentityGridEntity(const GridImp* identityGrid, HostGridEntity&& hostEntity)
: hostEntity_(std::move(hostEntity))
, identityGrid_(identityGrid)
{}
//! \todo Please doc me !
IdentityGridEntity(const IdentityGridEntity& original)
: hostEntity_(original.hostEntity_)
, identityGrid_(original.identityGrid_)
{}
IdentityGridEntity(IdentityGridEntity&& original)
: hostEntity_(std::move(original.hostEntity_))
, identityGrid_(original.identityGrid_)
{}
//! \todo Please doc me !
IdentityGridEntity& operator=(const IdentityGridEntity& original)
{
if (this != &original)
{
identityGrid_ = original.identityGrid_;
hostEntity_ = original.hostEntity_;
}
return *this;
}
//! \todo Please doc me !
IdentityGridEntity& operator=(IdentityGridEntity&& original)
{
if (this != &original)
{
identityGrid_ = original.identityGrid_;
hostEntity_ = std::move(original.hostEntity_);
}
return *this;
}
bool equals(const IdentityGridEntity& other) const
{
return hostEntity_ == other.hostEntity_;
}
//! returns true if father entity exists
bool hasFather () const {
return hostEntity_.hasFather();
}
//! Create EntitySeed
EntitySeed seed () const
{
return EntitySeed(hostEntity_);
}
//! Level of this element
int level () const
{
return hostEntity_.level();
}
/** \brief The partition type for parallel computing */
PartitionType partitionType () const {
return hostEntity_.partitionType();
}
//! Geometry of this entity
Geometry geometry () const
{
return Geometry( hostEntity_.geometry() );
}
/** \brief Return the number of subEntities of codimension cc.
*/
template<int cc>
int count () const
{
return hostEntity_.template count<cc>();
}
/** \brief Return the number of subEntities of codimension codim.
*/
unsigned int subEntities (unsigned int codim) const
{
return hostEntity_.subEntities(codim);
}
/** \brief Provide access to sub entity i of given codimension. Entities
* are numbered 0 ... count<cc>()-1
*/
template<int cc>
typename GridImp::template Codim<cc>::Entity subEntity (int i) const {
return IdentityGridEntity<cc,dim,GridImp>(identityGrid_, hostEntity_.template subEntity<cc>(i));
}
//! First level intersection
IdentityGridLevelIntersectionIterator<GridImp> ilevelbegin () const {
return IdentityGridLevelIntersectionIterator<GridImp>(
identityGrid_,
identityGrid_->getHostGrid().levelGridView(level()).ibegin(hostEntity_));
}
//! Reference to one past the last neighbor
IdentityGridLevelIntersectionIterator<GridImp> ilevelend () const {
return IdentityGridLevelIntersectionIterator<GridImp>(
identityGrid_,
identityGrid_->getHostGrid().levelGridView(level()).iend(hostEntity_));
}
//! First leaf intersection
IdentityGridLeafIntersectionIterator<GridImp> ileafbegin () const {
return IdentityGridLeafIntersectionIterator<GridImp>(
identityGrid_,
identityGrid_->getHostGrid().leafGridView().ibegin(hostEntity_));
}
//! Reference to one past the last leaf intersection
IdentityGridLeafIntersectionIterator<GridImp> ileafend () const {
return IdentityGridLeafIntersectionIterator<GridImp>(
identityGrid_,
identityGrid_->getHostGrid().leafGridView().iend(hostEntity_));
}
//! returns true if Entity has NO children
bool isLeaf() const {
return hostEntity_.isLeaf();
}
//! Inter-level access to father element on coarser grid.
//! Assumes that meshes are nested.
typename GridImp::template Codim<0>::Entity father () const {
return IdentityGridEntity(identityGrid_, hostEntity_.father());
}
/** \brief Location of this element relative to the reference element element of the father.
* This is sufficient to interpolate all dofs in conforming case.
* Nonconforming may require access to neighbors of father and
* computations with local coordinates.
* On the fly case is somewhat inefficient since dofs are visited several times.
* If we store interpolation matrices, this is tolerable. We assume that on-the-fly
* implementation of numerical algorithms is only done for simple discretizations.
* Assumes that meshes are nested.
*/
LocalGeometry geometryInFather () const
{
return LocalGeometry( hostEntity_.geometryInFather() );
}
/** \brief Inter-level access to son elements on higher levels<=maxlevel.
* This is provided for sparsely stored nested unstructured meshes.
* Returns iterator to first son.
*/
IdentityGridHierarchicIterator<GridImp> hbegin (int maxLevel) const
{
return IdentityGridHierarchicIterator<const GridImp>(identityGrid_, *this, maxLevel);
}
//! Returns iterator to one past the last son
IdentityGridHierarchicIterator<GridImp> hend (int maxLevel) const
{
return IdentityGridHierarchicIterator<const GridImp>(identityGrid_, *this, maxLevel, true);
}
//! \todo Please doc me !
bool wasRefined () const
{
if (identityGrid_->adaptationStep!=GridImp::adaptDone)
return false;
int level = this->level();
int index = identityGrid_->levelIndexSet(level).index(*this);
return identityGrid_->refinementMark_[level][index];
}
//! \todo Please doc me !
bool mightBeCoarsened () const
{
return true;
}
// /////////////////////////////////////////
// Internal stuff
// /////////////////////////////////////////
HostGridEntity hostEntity_;
const GridImp* identityGrid_;
private:
typedef typename GridImp::ctype ctype;
}; // end of IdentityGridEntity codim = 0
} // namespace Dune
#endif
|