/usr/include/dune/localfunctions/lagrange/pyramidp1/pyramidp1localinterpolation.hh is in libdune-localfunctions-dev 2.3.1-1.
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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 | // -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
// vi: set et ts=4 sw=2 sts=2:
#ifndef DUNE_PYRAMID_P1_LOCALINTERPOLATION_HH
#define DUNE_PYRAMID_P1_LOCALINTERPOLATION_HH
#include <vector>
namespace Dune
{
template<class LB>
class PyramidP1LocalInterpolation
{
public:
PyramidP1LocalInterpolation ()
{
x[0][0] = 0.0; x[0][1] = 0.0; x[0][2] = 0.0;
x[1][0] = 1.0; x[1][1] = 0.0; x[1][2] = 0.0;
x[2][0] = 0.0; x[2][1] = 1.0; x[2][2] = 0.0;
x[3][0] = 1.0; x[3][1] = 1.0; x[3][2] = 0.0;
x[4][0] = 0.0; x[4][1] = 0.0; x[4][2] = 1.0;
}
//! \brief Local interpolation of a function
template<typename F, typename C>
void interpolate (const F& f, std::vector<C>& out) const
{
typename LB::Traits::RangeType y;
out.resize(5);
f.evaluate(x[0],y); out[0] = y;
f.evaluate(x[1],y); out[1] = y;
f.evaluate(x[2],y); out[2] = y;
f.evaluate(x[3],y); out[3] = y;
f.evaluate(x[4],y); out[4] = y;
}
private:
typename LB::Traits::DomainType x[5];
};
}
#endif
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