/usr/include/dune/localfunctions/refined/refinedp0/refinedp0localinterpolation.hh is in libdune-localfunctions-dev 2.2.1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 | // -*- tab-width: 8; indent-tabs-mode: nil -*-
// vi: set ts=8 sw=2 et sts=2:
#ifndef DUNE_REFINED_P0_LOCALINTERPOLATION_HH
#define DUNE_REFINED_P0_LOCALINTERPOLATION_HH
#include <dune/localfunctions/refined/refinedp0/refinedp0localbasis.hh>
namespace Dune
{
template<class LB>
class RefinedP0LocalInterpolation
{};
template<class D, class R>
class RefinedP0LocalInterpolation<RefinedP0LocalBasis<D,R,2> >
{
typedef RefinedP0LocalBasis<D,R,2> LB;
typedef typename LB::Traits::DomainType DT;
public:
RefinedP0LocalInterpolation() :
interpolationPoints_(4)
{
// Interpolation is done by evaluating at the subtriangle centers
interpolationPoints_[0][0] = 1.0/6;
interpolationPoints_[0][1] = 1.0/6;
interpolationPoints_[1][0] = 4.0/6;
interpolationPoints_[1][1] = 1.0/6;
interpolationPoints_[2][0] = 1.0/6;
interpolationPoints_[2][1] = 4.0/6;
interpolationPoints_[3][0] = 2.0/6;
interpolationPoints_[3][1] = 2.0/6;
}
template<typename F, typename C>
void interpolate (const F& f, std::vector<C>& out) const
{
typename LB::Traits::RangeType y;
out.resize(interpolationPoints_.size());
for (size_t i = 0; i < out.size(); ++i)
{
f.evaluate(interpolationPoints_[i], y);
out[i] = y;
}
}
private:
std::vector<DT> interpolationPoints_;
};
template<class D, class R>
class RefinedP0LocalInterpolation<RefinedP0LocalBasis<D,R,3> >
{
typedef RefinedP0LocalBasis<D,R,3> LB;
typedef typename LB::Traits::DomainType DT;
public:
RefinedP0LocalInterpolation() :
interpolationPoints_(8)
{
// Interpolation is done by evaluating at the subtriangle centers
interpolationPoints_[0][0] = 1.0/8;
interpolationPoints_[0][1] = 1.0/8;
interpolationPoints_[0][2] = 1.0/8;
interpolationPoints_[1][0] = 5.0/8;
interpolationPoints_[1][1] = 1.0/8;
interpolationPoints_[1][2] = 1.0/8;
interpolationPoints_[2][0] = 1.0/8;
interpolationPoints_[2][1] = 5.0/8;
interpolationPoints_[2][2] = 1.0/8;
interpolationPoints_[3][0] = 1.0/8;
interpolationPoints_[3][1] = 1.0/8;
interpolationPoints_[3][2] = 5.0/8;
interpolationPoints_[4][0] = 1.0/4;
interpolationPoints_[4][1] = 1.0/8;
interpolationPoints_[4][2] = 1.0/4;
interpolationPoints_[5][0] = 3.0/8;
interpolationPoints_[5][1] = 1.0/4;
interpolationPoints_[5][2] = 1.0/8;
interpolationPoints_[6][0] = 1.0/8;
interpolationPoints_[6][1] = 1.0/4;
interpolationPoints_[6][2] = 3.0/8;
interpolationPoints_[7][0] = 1.0/4;
interpolationPoints_[7][1] = 3.0/8;
interpolationPoints_[7][2] = 1.0/4;
}
template<typename F, typename C>
void interpolate (const F& f, std::vector<C>& out) const
{
typename LB::Traits::RangeType y;
out.resize(interpolationPoints_.size());
for (size_t i = 0; i < out.size(); ++i)
{
f.evaluate(interpolationPoints_[i], y);
out[i] = y;
}
}
private:
std::vector<DT> interpolationPoints_;
};
}
#endif
|