/usr/include/dune/localfunctions/lagrange/q2.hh is in libdune-localfunctions-dev 2.3.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// vi: set et ts=4 sw=2 sts=2:
#ifndef DUNE_Q2_LOCALFINITEELEMENT_HH
#define DUNE_Q2_LOCALFINITEELEMENT_HH
#warning The class Q2LocalFiniteElement from q2.hh is deprecated, and will be removed\
after the release of Dune 2.3. Please use QkLocalFiniteElement from qk.hh instead.
#include <dune/geometry/type.hh>
#include <dune/localfunctions/common/localfiniteelementtraits.hh>
#include <dune/localfunctions/common/localtoglobaladaptors.hh>
#include "q2/q2localbasis.hh"
#include "q2/q2localcoefficients.hh"
#include "q2/q2localinterpolation.hh"
namespace Dune
{
/** \brief 2nd-order Lagrangian finite elements on hypercubes
* \tparam D Type used for coordinates
* \tparam R Type used for function values
* \tparam dim Dimension of the reference cube
*/
template<class D, class R, int dim>
class Q2LocalFiniteElement
{
public:
/** \todo Please doc me !
*/
typedef LocalFiniteElementTraits<Q2LocalBasis<D,R,dim>,Q2LocalCoefficients<dim>,
Q2LocalInterpolation<Q2LocalBasis<D,R,dim> > > Traits;
/** \brief Default constructor
*/
Q2LocalFiniteElement ()
{
gt.makeCube(dim);
}
/** \brief Get the actual shape functions
*/
const typename Traits::LocalBasisType& localBasis () const
{
return basis;
}
/** \todo Please doc me!
*/
const typename Traits::LocalCoefficientsType& localCoefficients () const
{
return coefficients;
}
/** \todo Please doc me !
*/
const typename Traits::LocalInterpolationType& localInterpolation () const
{
return interpolation;
}
/** \brief Get the type of the reference element
*/
GeometryType type () const
{
return gt;
}
private:
Q2LocalBasis<D,R,dim> basis;
Q2LocalCoefficients<dim> coefficients;
Q2LocalInterpolation<Q2LocalBasis<D,R,dim> > interpolation;
GeometryType gt;
};
//! Factory for global-valued Q23D elements
/**
* \tparam Geometry Type of the geometry. Used to extract the domain field
* type.
* \tparam RF Range field type.
*/
template<class Geometry, class RF>
class Q2FiniteElementFactory :
public ScalarLocalToGlobalFiniteElementAdaptorFactory<
Q2LocalFiniteElement<typename Geometry::ctype, RF, Geometry::mydimension>, Geometry
>
{
typedef Q2LocalFiniteElement<typename Geometry::ctype, RF, Geometry::mydimension> LFE;
typedef ScalarLocalToGlobalFiniteElementAdaptorFactory<LFE, Geometry> Base;
static const LFE lfe;
public:
//! default constructor
Q2FiniteElementFactory() : Base(lfe) {}
};
template<class Geometry, class RF>
const typename Q2FiniteElementFactory<Geometry, RF>::LFE
Q2FiniteElementFactory<Geometry, RF>::lfe;
}
#endif
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