dune-grid  2.5.1
albertareader.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 #ifndef DUNE_ALBERTA_ALBERTAREADER_HH
4 #define DUNE_ALBERTA_ALBERTAREADER_HH
5 
6 #include <dune/geometry/type.hh>
7 
10 
12 
13 #if HAVE_ALBERTA
14 
15 namespace Dune
16 {
17 
18  template< class Grid >
20  {
22 
23  public:
25 
26  typedef typename Grid::ctype ctype;
27 
28  static const int dimension = Grid::dimension;
30 
31  private:
32  static_assert(dimensionworld == Alberta::dimWorld,
33  "AlbertaReader: world dimension must match ALBERTA's world dimension.");
34 
36 
37  MacroData macroData_;
38 
39  AlbertaReader ( const This & );
40  This &operator= ( const This & );
41 
42  public:
44  {}
45 
46  void readGrid ( const std::string &fileName, GridFactory &factory )
47  {
48  // read ALBERTA macro triangulation
49  macroData_.read( fileName, false );
50 
51  // insert all vertices into the factory
52  const int numVertices = macroData_.vertexCount();
53  for( int i = 0; i < numVertices; ++i )
54  {
55  FieldVector< ctype, dimensionworld > v;
56  const Alberta::GlobalVector &coords = macroData_.vertex( i );
57  for( int j = 0; j < dimensionworld; ++j )
58  v[ j ] = coords[ j ];
59  factory.insertVertex( v );
60  }
61 
62  // insert all elements into the factory
63  std::vector< unsigned int > vertices( dimension+1 );
64  const int numElements = macroData_.elementCount();
65  for( int i = 0; i < numElements; ++i )
66  {
67  const typename MacroData::ElementId &id = macroData_.element( i );
68  for( int j = 0; j <= dimension; ++j )
69  vertices[ j ] = id[ j ];
70  typedef typename Impl::SimplexTopology< dimension >::type Topology;
71  factory.insertElement( GeometryType( Topology() ), vertices );
72  }
73 
74  // release ALBERTA macro data
75  macroData_.release();
76  }
77  };
78 
79 }
80 
81 #endif // #if HAVE_ALBERTA
82 
83 #endif
Grid::ctype ctype
Definition: albertareader.hh:26
ct ctype
Define type used for coordinates in grid module.
Definition: common/grid.hh:522
static const int dimWorld
Definition: misc.hh:43
int ElementId[numVertices]
Definition: macrodata.hh:46
int vertexCount() const
Definition: macrodata.hh:61
virtual void insertElement(const GeometryType &type, const std::vector< unsigned int > &vertices)
Insert an element into the coarse grid.
Definition: common/gridfactory.hh:290
GeometryType
Type representing VTK&#39;s entity geometry types.
Definition: common.hh:178
void read(const std::string &filename, bool binary=false)
Definition: macrodata.hh:410
Provide a generic factory class for unstructured grids.
static const int dimension
Definition: albertareader.hh:28
static const int dimensionworld
Definition: albertareader.hh:29
provides a wrapper for ALBERTA&#39;s macro_data structure
int elementCount() const
Definition: macrodata.hh:66
void readGrid(const std::string &fileName, GridFactory &factory)
Definition: albertareader.hh:46
Dune::GridFactory< Grid > GridFactory
Definition: albertareader.hh:24
Include standard header files.
Definition: agrid.hh:59
ElementId & element(int i) const
Definition: macrodata.hh:243
GlobalVector & vertex(int i) const
Definition: macrodata.hh:252
virtual void insertVertex(const FieldVector< ctype, dimworld > &pos)
Insert a vertex into the coarse grid.
Definition: common/gridfactory.hh:279
Definition: albertareader.hh:19
The dimension of the grid.
Definition: common/grid.hh:387
AlbertaReader()
Definition: albertareader.hh:43
ALBERTA REAL_D GlobalVector
Definition: misc.hh:47
void release()
release the macro data structure
Definition: macrodata.hh:125
Different resources needed by all grid implementations.
The dimension of the world the grid lives in.
Definition: common/grid.hh:393