3#ifndef DUNE_LAGRANGEBASIS_INTERPOLATION_HH
4#define DUNE_LAGRANGEBASIS_INTERPOLATION_HH
10#include <dune/common/typeutilities.hh>
18 template<
template <
class,
unsigned int>
class LP,
19 unsigned int dim,
class F >
20 struct LagrangeInterpolationFactory;
25 template<
template <
class,
unsigned int>
class LP,
unsigned int dim,
class F >
32 typedef typename LagrangePointSet::Field
Field;
34 static const unsigned int dimension = LagrangePointSet::dimension;
46 template<
class Fn,
class Vector >
47 auto interpolate (
const Fn &fn, Vector &coefficients, PriorityTag< 1 > )
const
48 -> std::enable_if_t< std::is_invocable_v<
const Fn &,
decltype( this->lagrangePoints_.begin()->point() ) > >
50 unsigned int index = 0;
51 for(
const auto &lp : lagrangePoints_ )
52 field_cast( fn( lp.point() ), coefficients[ index++ ] );
54 template<
class Fn,
class Vector >
55 auto interpolate (
const Fn &fn, Vector &coefficients, PriorityTag< 0 > )
const
56 -> std::enable_if_t< models<Impl::FunctionWithEvaluate< typename Fn::DomainType, typename Fn::RangeType >, Fn>(),
void>
58 unsigned int index = 0;
59 for(
const auto &lp : lagrangePoints_ )
61 typename Fn::RangeType val;
62 fn.evaluate( field_cast< typename Fn::DomainType::field_type >( lp.point() ), val );
68 template<
class Fn,
class Vector >
70 -> std::enable_if_t< std::is_same< decltype(std::declval<Vector>().resize(1) ),
void >::value,
void>
72 coefficients.resize( lagrangePoints_.size() );
73 interpolate( fn, coefficients, PriorityTag< 42 >() );
76 template<
class Basis,
class Matrix >
77 auto interpolate (
const Basis &basis, Matrix &coefficients )
const
78 -> std::enable_if_t< std::is_same<
79 decltype(std::declval<Matrix>().rowPtr(0)),
typename Matrix::Field* >::value,
void>
81 coefficients.resize( lagrangePoints_.size(), basis.size( ) );
83 unsigned int index = 0;
84 for(
const auto &lp : lagrangePoints_ )
85 basis.template evaluate< 0 >( lp.point(), coefficients.rowPtr( index++ ) );
95 template<
template <
class,
unsigned int>
class LP,
96 unsigned int dim,
class F >
105 template< GeometryType::Id geometryId >
109 = LagrangePointSetFactory::template create< geometryId >( key );
110 if ( lagrangeCoeff == 0 )
113 return new Object( *lagrangeCoeff );
115 template< GeometryType::Id geometryId >
Definition: bdfmcube.hh:16
void field_cast(const F1 &f1, F2 &f2)
a helper class to cast from one field to another
Definition: field.hh:157
Definition: lagrange/interpolation.hh:98
LagrangeCoefficientsFactory< LP, dim, F > LagrangePointSetFactory
Definition: lagrange/interpolation.hh:99
LagrangePointSetFactory::Object LagrangePointSet
Definition: lagrange/interpolation.hh:100
static bool supports(const Key &key)
Definition: lagrange/interpolation.hh:116
LagrangePointSetFactory::Key Key
Definition: lagrange/interpolation.hh:102
static Object * create(const Key &key)
Definition: lagrange/interpolation.hh:106
static void release(Object *object)
Definition: lagrange/interpolation.hh:120
const LocalLagrangeInterpolation< LP, dim, F > Object
Definition: lagrange/interpolation.hh:103
Definition: lagrange/interpolation.hh:27
LagrangePointSet::Field Field
Definition: lagrange/interpolation.hh:32
const LagrangePointSet & lagrangePoints() const
Definition: lagrange/interpolation.hh:88
static const unsigned int dimension
Definition: lagrange/interpolation.hh:34
LP< F, dim > LagrangePointSet
Definition: lagrange/interpolation.hh:31
auto interpolate(const Fn &fn, Vector &coefficients) const -> std::enable_if_t< std::is_same< decltype(std::declval< Vector >().resize(1)), void >::value, void >
Definition: lagrange/interpolation.hh:69
auto interpolate(const Basis &basis, Matrix &coefficients) const -> std::enable_if_t< std::is_same< decltype(std::declval< Matrix >().rowPtr(0)), typename Matrix::Field * >::value, void >
Definition: lagrange/interpolation.hh:77
Definition: lagrangecoefficients.hh:21
static void release(Object *object)
Definition: lagrangecoefficients.hh:40
const typedef LP< F, dim > Object
Definition: lagrangecoefficients.hh:23
std::size_t Key
Definition: lagrangecoefficients.hh:24