4 #ifndef DUNE_LOCALFUNCTIONS_META_POWER_BASIS_HH
5 #define DUNE_LOCALFUNCTIONS_META_POWER_BASIS_HH
10 #include <dune/common/fmatrix.hh>
11 #include <dune/common/fvector.hh>
22 template<
class Backend, std::
size_t dimR>
24 static_assert(Backend::Traits::dimRange == 1,
25 "PowerBasis works only with scalar backends");
28 const Backend *backend;
32 struct Traits :
public Backend::Traits
35 static const std::size_t dimRange = dimR;
37 typedef FieldVector<typename Traits::RangeField, dimR> Range;
44 typedef FieldMatrix<
typename Traits::RangeField, dimR,
45 Traits::dimDomainGlobal> Jacobian;
48 static const std::size_t diffOrder =
49 Backend::Traits::diffOrder > 0 ? 1 : 0;
59 PowerBasis(
const Backend &backend_) : backend(&backend_) { }
62 std::size_t size ()
const {
return backend->size()*dimR; }
64 std::size_t order ()
const {
return backend->order(); }
67 void evaluateFunction(
const typename Traits::DomainLocal& in,
68 std::vector<typename Traits::Range>& out)
const
70 std::vector<typename Backend::Traits::Range> backendValues;
71 backend->evaluateFunction(in, backendValues);
72 out.assign(size(),
typename Traits::Range(0));
73 for(std::size_t d = 0; d < dimR; ++d)
74 for(std::size_t i = 0; i < backend->size(); ++i)
75 out[d*backend->size()+i][d] = backendValues[i][0];
79 void evaluateJacobian(
const typename Traits::DomainLocal& in,
80 std::vector<typename Traits::Jacobian>& out)
const
82 std::vector<typename Backend::Traits::Jacobian> backendValues;
83 backend->evaluateJacobian(in, backendValues);
84 out.assign(size(),
typename Traits::Jacobian(0));
85 for(std::size_t d = 0; d < dimR; ++d)
86 for(std::size_t i = 0; i < backend->size(); ++i)
87 out[d*backend->size()+i][d] = backendValues[i][0];
93 #endif // DUNE_LOCALFUNCTIONS_META_POWER_BASIS_HH
Definition: brezzidouglasmarini1cube2dlocalbasis.hh:14
Meta-basis turning a scalar basis into vector-valued basis.
Definition: meta/power/basis.hh:23