Dune Core Modules (2.5.0)

albertareader.hh
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
7
10
12
13#if HAVE_ALBERTA
14
15namespace Dune
16{
17
18 template< class Grid >
19 class AlbertaReader
20 {
21 typedef AlbertaReader< Grid > This;
22
23 public:
24 typedef Dune::GridFactory< Grid > GridFactory;
25
26 typedef typename Grid::ctype ctype;
27
28 static const int dimension = Grid::dimension;
29 static const int dimensionworld = Grid::dimensionworld;
30
31 private:
32 static_assert(dimensionworld == Alberta::dimWorld,
33 "AlbertaReader: world dimension must match ALBERTA's world dimension.");
34
35 typedef Alberta::MacroData< dimension > MacroData;
36
37 MacroData macroData_;
38
39 AlbertaReader ( const This & );
40 This &operator= ( const This & );
41
42 public:
43 AlbertaReader ()
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
@ dimensionworld
The dimension of the world the grid lives in.
Definition: grid.hh:393
@ dimension
The dimension of the grid.
Definition: grid.hh:387
ct ctype
Define type used for coordinates in grid module.
Definition: grid.hh:522
Different resources needed by all grid implementations.
Provide a generic factory class for unstructured grids.
GeometryType
Type representing VTK's entity geometry types.
Definition: common.hh:178
provides a wrapper for ALBERTA's macro_data structure
Dune namespace.
Definition: alignment.hh:11
A unique label for each type of element that can occur in a grid.
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