3#ifndef DUNE_RT02DLOCALINTERPOLATION_HH
4#define DUNE_RT02DLOCALINTERPOLATION_HH
10#include <dune/localfunctions/common/localinterpolation.hh>
15 class RT02DLocalInterpolation
20 RT02DLocalInterpolation (std::bitset<3> s = 0)
22 for (std::size_t i=0; i<sign_.size(); i++)
23 sign_[i] = (s[i]) ? -1.0 : 1.0;
30 n_[2] = {1.0/sqrt(2.0), 1.0/sqrt(2.0)};
31 c_[0] = ( 0.5*n_[0][0] - 1.0*n_[0][1]);
32 c_[1] = (-1.0*n_[1][0] + 0.5*n_[1][1]);
33 c_[2] = ( 0.5*n_[2][0] + 0.5*n_[2][1]);
36 template<
typename F,
typename C>
37 void interpolate (
const F& ff, std::vector<C>& out)
const
40 auto&& f = Impl::makeFunctionWithCallOperator<typename LB::Traits::DomainType>(ff);
44 for (
int i=0; i<3; i++)
47 out[i] = (y[0]*n_[i][0]+y[1]*n_[i][1])*sign_[i]/c_[i];
53 std::array<typename LB::Traits::RangeFieldType,3> sign_;
55 std::array<typename LB::Traits::DomainType,3> m_;
57 std::array<typename LB::Traits::DomainType,3> n_;
59 std::array<typename LB::Traits::RangeFieldType,3> c_;
Dune namespace.
Definition: alignedallocator.hh:14