dune-functions  2.7.1
subspacebasis.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_FUNCTIONS_FUNCTIONSPACEBASES_SUBSPACEBASIS_HH
4 #define DUNE_FUNCTIONS_FUNCTIONSPACEBASES_SUBSPACEBASIS_HH
5 
6 #include <dune/common/reservedvector.hh>
7 #include <dune/common/typeutilities.hh>
8 #include <dune/common/concept.hh>
9 
13 
14 
15 
16 namespace Dune {
17 namespace Functions {
18 
19 
20 
21 template<class RB, class TP>
23 {
24 public:
25 
26  using RootBasis = RB;
27 
28  using RootLocalView = typename RootBasis::LocalView;
29 
30  using PrefixPath = TP;
31 
33  using GridView = typename RootBasis::GridView;
34 
36  using MultiIndex = typename RootBasis::MultiIndex;
37 
38  using size_type = std::size_t;
39 
42 
43  using SizePrefix = typename RootBasis::SizePrefix;
44 
45 
50  {
51 // static_assert(models<Concept::NodeFactory<GridView>, NodeFactory>(), "Type passed to DefaultGlobalBasis does not model the NodeFactory concept.");
52  }
53 
56  const GridView& gridView() const
57  {
58  return rootBasis_->gridView();
59  }
60 
65  {
66  return rootBasis_->dimension();
67  }
68 
70  size_type size() const
71  {
72  return rootBasis_->size();
73  }
74 
76  size_type size(const SizePrefix& prefix) const
77  {
78  return rootBasis_->size(prefix);
79  }
80 
85  {
86  return LocalView(*this, prefixPath_);
87  }
88 
89  const RootBasis& rootBasis() const
90  {
91  return *rootBasis_;
92  }
93 
94  const PrefixPath& prefixPath() const
95  {
96  return prefixPath_;
97  }
98 
99 protected:
102 };
103 
104 
105 template<class RootBasis, class... PrefixTreeIndices>
106 auto subspaceBasis(const RootBasis& rootBasis, const TypeTree::HybridTreePath<PrefixTreeIndices...>& prefixPath)
107 {
108  using PrefixPath = TypeTree::HybridTreePath<PrefixTreeIndices...>;
109  return SubspaceBasis<RootBasis, PrefixPath>{rootBasis, prefixPath};
110 }
111 
112 template<class RootBasis, class... PrefixTreeIndices>
113 auto subspaceBasis(const RootBasis& rootBasis, const PrefixTreeIndices&... prefixTreeIndices)
114 {
115  return subspaceBasis(rootBasis, TypeTree::hybridTreePath(prefixTreeIndices...));
116 }
117 
118 
119 
120 } // end namespace Functions
121 } // end namespace Dune
122 
123 
124 
125 #endif // DUNE_FUNCTIONS_FUNCTIONSPACEBASES_DEFAULTGLOBALBASIS_HH
Definition: polynomial.hh:10
auto subspaceBasis(const RootBasis &rootBasis, const TypeTree::HybridTreePath< PrefixTreeIndices... > &prefixPath)
Definition: subspacebasis.hh:106
Definition: subspacebasis.hh:23
typename RootBasis::LocalView RootLocalView
Definition: subspacebasis.hh:28
const GridView & gridView() const
Obtain the grid view that the basis is defined on.
Definition: subspacebasis.hh:56
LocalView localView() const
Return local view for basis.
Definition: subspacebasis.hh:84
const RootBasis * rootBasis_
Definition: subspacebasis.hh:100
typename RootBasis::SizePrefix SizePrefix
Definition: subspacebasis.hh:43
TP PrefixPath
Definition: subspacebasis.hh:30
SubspaceLocalView< RootLocalView, PrefixPath > LocalView
Type of the local view on the restriction of the basis to a single element.
Definition: subspacebasis.hh:41
size_type size(const SizePrefix &prefix) const
Return number possible values for next position in multi index.
Definition: subspacebasis.hh:76
typename RootBasis::GridView GridView
The grid view that the FE space is defined on.
Definition: subspacebasis.hh:33
const PrefixPath & prefixPath() const
Definition: subspacebasis.hh:94
RB RootBasis
Definition: subspacebasis.hh:26
PrefixPath prefixPath_
Definition: subspacebasis.hh:101
size_type size() const
Return number of possible values for next position in empty multi index.
Definition: subspacebasis.hh:70
typename RootBasis::MultiIndex MultiIndex
Type used for global numbering of the basis vectors.
Definition: subspacebasis.hh:36
size_type dimension() const
Definition: subspacebasis.hh:64
const RootBasis & rootBasis() const
Definition: subspacebasis.hh:89
std::size_t size_type
Definition: subspacebasis.hh:38
SubspaceBasis(const RootBasis &rootBasis, const PrefixPath &prefixPath)
Constructor for a given grid view object.
Definition: subspacebasis.hh:47
The restriction of a finite element basis to a single element.
Definition: subspacelocalview.hh:30