dune-grid  2.5.1
mcmgmapper.hh
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1 // -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
2 // vi: set et ts=4 sw=2 sts=2:
3 
4 #ifndef DUNE_GRID_COMMON_MCMGMAPPER_HH
5 #define DUNE_GRID_COMMON_MCMGMAPPER_HH
6 
7 #include <iostream>
8 
9 #include <dune/geometry/referenceelements.hh>
10 #include <dune/geometry/type.hh>
11 #include <dune/geometry/typeindex.hh>
12 
13 #include "mapper.hh"
14 
21 namespace Dune
22 {
29  //
31  // Common Layout templates
32  //
33 
35 
42  template<int dimgrid> struct MCMGElementLayout {
45  bool contains (Dune::GeometryType gt) { return gt.dim()==dimgrid; }
46  };
47 
49 
56  template<int dim> struct MCMGVertexLayout {
59  bool contains (Dune::GeometryType gt) { return gt.dim()==0; }
60  };
61 
63  //
64  // MultipleCodimMultipleGeomTypeMapper
65  //
66 
100  template <typename GV, template<int> class Layout>
102  public Mapper<typename GV::Grid,MultipleCodimMultipleGeomTypeMapper<GV,Layout>, typename GV::IndexSet::IndexType >
103  {
104  public:
105 
107  typedef typename GV::IndexSet::IndexType Index;
108 
117  MultipleCodimMultipleGeomTypeMapper (const GV& gridView_, const Layout<GV::dimension> layout)
118  : gridView(gridView_),
119  is(gridView.indexSet()),
120  offset(GlobalGeometryTypeIndex::size(GV::dimension)),
121  layout(layout)
122  {
123  update();
124  }
125 
131  : gridView(gridView_),
132  is(gridView.indexSet()),
133  offset(GlobalGeometryTypeIndex::size(GV::dimension))
134  {
135  update();
136  }
137 
145  template<class EntityType>
146  Index index (const EntityType& e) const
147  {
148  const GeometryType gt = e.type();
149  assert(layout.contains(gt));
150  return is.index(e) + offset[GlobalGeometryTypeIndex::index(gt)];
151  }
152 
160  Index subIndex (const typename GV::template Codim<0>::Entity& e, int i, unsigned int codim) const
161  {
162  const GeometryType eType = e.type();
163  GeometryType gt = eType.isNone() ?
164  GeometryType( GeometryType::none, GV::dimension - codim ) :
165  ReferenceElements<double,GV::dimension>::general(eType).type(i,codim) ;
166  //GeometryType gt=ReferenceElements<double,GV::dimension>::general(e.type()).type(i,codim);
167  assert(layout.contains(gt));
168  return is.subIndex(e, i, codim) + offset[GlobalGeometryTypeIndex::index(gt)];
169  }
170 
179  int size () const
180  {
181  return n;
182  }
183 
190  template<class EntityType>
191  bool contains (const EntityType& e, Index& result) const
192  {
193  if(!is.contains(e) || !layout.contains(e.type()))
194  {
195  result = 0;
196  return false;
197  }
198  result = index(e);
199  return true;
200  }
201 
210  bool contains (const typename GV::template Codim<0>::Entity& e, int i, int cc, Index& result) const
211  {
212  const GeometryType eType = e.type();
213  const GeometryType gt = eType.isNone() ?
214  GeometryType( GeometryType::none, GV::dimension - cc ) :
215  ReferenceElements<double,GV::dimension>::general(eType).type(i,cc) ;
216  //GeometryType gt=ReferenceElements<double,GV::dimension>::general(e.type()).type(i,cc);
217  if (not layout.contains(gt))
218  return false;
219  result = is.subIndex(e, i, cc) + offset[GlobalGeometryTypeIndex::index(gt)];
220  return true;
221  }
222 
225  void update ()
226  {
227  n = 0;
228 
229  for (unsigned int codim = 0; codim <= GV::dimension; ++codim)
230  {
231  // walk over all geometry types in the codimension
232  typedef typename GV::IndexSet::Types GTV;
233  GTV gtv = is.types(codim);
234  for (typename GTV::const_iterator it = gtv.begin(); it != gtv.end(); ++it)
235  {
236  // if the geometry type is contained in the layout, increment offset
237  if (layout.contains(*it))
238  {
239  offset[GlobalGeometryTypeIndex::index(*it)] = n;
240  n += is.size(*it);
241  }
242  }
243  }
244  }
245 
246  private:
247  // number of data elements required
248  unsigned int n;
249  // GridView is needed to keep the IndexSet valid
250  const GV gridView;
251  const typename GV::IndexSet& is;
252  // provide an array for the offsets
253  std::vector<int> offset;
254  mutable Layout<GV::dimension> layout; // get layout object
255  };
256 
258  //
259  // Leaf and level mapper
260  //
261 
272  template <typename G, template<int> class Layout>
274  : public MultipleCodimMultipleGeomTypeMapper<typename G::LeafGridView,Layout>
275  {
276  typedef MultipleCodimMultipleGeomTypeMapper<typename G::LeafGridView,
277  Layout> Base;
278  public:
283  : Base(grid.leafGridView())
284  {}
285 
294  LeafMultipleCodimMultipleGeomTypeMapper (const G& grid, const Layout<G::dimension> layout)
295  : Base(grid.leafGridView(),layout)
296  {}
297 
298  };
299 
311  template <typename G, template<int> class Layout>
313  : public MultipleCodimMultipleGeomTypeMapper<typename G::LevelGridView,Layout> {
314  typedef MultipleCodimMultipleGeomTypeMapper<typename G::LevelGridView,
315  Layout> Base;
316  public:
321  LevelMultipleCodimMultipleGeomTypeMapper (const G& grid, int level)
322  : Base(grid.levelGridView(level))
323  {}
324 
334  LevelMultipleCodimMultipleGeomTypeMapper (const G& grid, int level, const Layout<G::dimension> layout)
335  : Base(grid.levelGridView(level),layout)
336  {}
337 
338  };
339 
341 }
342 #endif
LeafMultipleCodimMultipleGeomTypeMapper(const G &grid, const Layout< G::dimension > layout)
The constructor.
Definition: mcmgmapper.hh:294
int size() const
Return total number of entities in the entity set managed by the mapper.
Definition: mcmgmapper.hh:179
Grid< dim, dimworld, ct, GridFamily >::LevelGridView levelGridView(const Grid< dim, dimworld, ct, GridFamily > &grid, int level)
level grid view for the given grid and level.
Definition: common/grid.hh:857
LevelMultipleCodimMultipleGeomTypeMapper(const G &grid, int level)
The constructor.
Definition: mcmgmapper.hh:321
GV::IndexSet::IndexType Index
Number type used for indices.
Definition: mcmgmapper.hh:107
bool contains(const EntityType &e, Index &result) const
Returns true if the entity is contained in the index set.
Definition: mcmgmapper.hh:191
GeometryType
Type representing VTK&#39;s entity geometry types.
Definition: common.hh:178
LevelMultipleCodimMultipleGeomTypeMapper(const G &grid, int level, const Layout< G::dimension > layout)
The constructor.
Definition: mcmgmapper.hh:334
Index index(const EntityType &e) const
Map entity to array index.
Definition: mcmgmapper.hh:146
Layout template for elements.
Definition: mcmgmapper.hh:42
MultipleCodimMultipleGeomTypeMapper(const GV &gridView_)
Construct mapper from grid and one of its index sets.
Definition: mcmgmapper.hh:130
Include standard header files.
Definition: agrid.hh:59
Grid< dim, dimworld, ct, GridFamily >::LeafGridView leafGridView(const Grid< dim, dimworld, ct, GridFamily > &grid)
leaf grid view for the given grid
Definition: common/grid.hh:874
Implementation class for a multiple codim and multiple geometry type mapper.
Definition: mcmgmapper.hh:101
Mapper interface.
Definition: mapper.hh:107
bool contains(const typename GV::template Codim< 0 >::Entity &e, int i, int cc, Index &result) const
Returns true if the entity is contained in the index set.
Definition: mcmgmapper.hh:210
bool contains(Dune::GeometryType gt)
Definition: mcmgmapper.hh:45
Provides classes with basic mappers which are used to attach data to a grid.
Multiple codim and multiple geometry type mapper for entities of one level.
Definition: mcmgmapper.hh:312
bool contains(Dune::GeometryType gt)
Definition: mcmgmapper.hh:59
Layout template for vertices.
Definition: mcmgmapper.hh:56
void update()
Recalculates map after mesh adaptation.
Definition: mcmgmapper.hh:225
Index subIndex(const typename GV::template Codim< 0 >::Entity &e, int i, unsigned int codim) const
Map subentity of codim 0 entity to array index.
Definition: mcmgmapper.hh:160
LeafMultipleCodimMultipleGeomTypeMapper(const G &grid)
The constructor.
Definition: mcmgmapper.hh:282
MultipleCodimMultipleGeomTypeMapper(const GV &gridView_, const Layout< GV::dimension > layout)
Construct mapper from grid and one of its index sets.
Definition: mcmgmapper.hh:117
Multiple codim and multiple geometry type mapper for leaf entities.
Definition: mcmgmapper.hh:273