/usr/include/dune/localfunctions/lagrange/q22d/q22dlocalinterpolation.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 | #ifndef DUNE_Q22DLOCALINTERPOLATION_HH
#define DUNE_Q22DLOCALINTERPOLATION_HH
#warning This file is deprecated and will be removed after Dune 2.2. \
Please use q2localinterpolation.hh instead!
#include <vector>
namespace Dune
{
template<class LB>
class Q22DLocalInterpolation
{
public:
//! \brief Local interpolation of a function
template<typename F, typename C>
void interpolate (const F& f, std::vector<C>& out) const
{
typename LB::Traits::DomainType x;
typename LB::Traits::RangeType y;
out.resize(9);
x[0] = 0.0; x[1] = 0.0; f.evaluate(x,y); out[0] = y;
x[0] = 1.0; x[1] = 0.0; f.evaluate(x,y); out[1] = y;
x[0] = 0.0; x[1] = 1.0; f.evaluate(x,y); out[2] = y;
x[0] = 1.0; x[1] = 1.0; f.evaluate(x,y); out[3] = y;
x[0] = 0.0; x[1] = 0.5; f.evaluate(x,y); out[4] = y;
x[0] = 1.0; x[1] = 0.5; f.evaluate(x,y); out[5] = y;
x[0] = 0.5; x[1] = 0.0; f.evaluate(x,y); out[6] = y;
x[0] = 0.5; x[1] = 1.0; f.evaluate(x,y); out[7] = y;
x[0] = 0.5; x[1] = 0.5; f.evaluate(x,y); out[8] = y;
}
};
}
#endif
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