identity.hh

// -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
// vi: set et ts=4 sw=2 sts=2:
#ifndef DUNE_GEOGRID_IDENTITY_HH
#define DUNE_GEOGRID_IDENTITY_HH
 
#include <dune/grid/geometrygrid/coordfunction.hh>
 
namespace Dune
{
 
  template< class ctype, unsigned int dim >
  class IdenticalCoordFunction
    : public AnalyticalCoordFunction
      < ctype, dim, dim, IdenticalCoordFunction< ctype, dim > >
  {
    typedef IdenticalCoordFunction< ctype, dim > This;
    typedef AnalyticalCoordFunction< ctype, dim, dim, This > Base;
 
  public:
    typedef typename Base :: DomainVector DomainVector;
    typedef typename Base :: RangeVector RangeVector;
 
    template< typename... Args >
    IdenticalCoordFunction( Args&... )
    {}
 
    void evaluate ( const DomainVector &x, RangeVector &y ) const
    {
      y = x;
    }
  };
 
}
 
#endif