/usr/include/dune/localfunctions/rannacherturek/rannacherturek2d/rannacherturek2dlocalinterpolation.hh is in libdune-localfunctions-dev 2.2.1-2.
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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 | #ifndef DUNE_RANNACHER_TUREK2DLOCALINTERPOLATION_HH
#define DUNE_RANNACHER_TUREK2DLOCALINTERPOLATION_HH
#include <vector>
namespace Dune {
template<class LB>
class RannacherTurek2DLocalInterpolation
{
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(4);
x[0] = 0.0; x[1] = 0.5; f.evaluate(x,y); out[0] = y;
x[0] = 1.0; x[1] = 0.5; f.evaluate(x,y); out[1] = y;
x[0] = 0.5; x[1] = 0.0; f.evaluate(x,y); out[2] = y;
x[0] = 0.5; x[1] = 1.0; f.evaluate(x,y); out[3] = y;
}
};
} // namespace Dune
#endif // DUNE_RANNACHER_TUREK2DLOCALINTERPOLATION_HH
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