virtualrefinement.hh

Go to the documentation of this file.

// -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
// vi: set et ts=4 sw=2 sts=2:
// SPDX-FileCopyrightInfo: Copyright © DUNE Project contributors, see file LICENSE.md in module root
// SPDX-License-Identifier: LicenseRef-GPL-2.0-only-with-DUNE-exception
#ifndef DUNE_GEOMETRY_VIRTUALREFINEMENT_HH
#define DUNE_GEOMETRY_VIRTUALREFINEMENT_HH

#include <vector>

#include <dune/common/fvector.hh>

#include "refinement.hh"
#include "type.hh"

namespace Dune
{
  // //////////////////////////////////////////
  //
  // The virtual base class and its iterators
  //

  //
  // Refinement
  //

  template<int dimension, class CoordType>
  class VirtualRefinement
  {
  public:
    template<int codimension>
    struct Codim;
    typedef typename Codim<dimension>::SubEntityIterator VertexIterator;
    typedef typename Codim<0>::SubEntityIterator ElementIterator;

    typedef FieldVector<CoordType, dimension> CoordVector;
    typedef std::vector<int> IndexVector;

    template<int codimension>
    class SubEntityIteratorBack;
    typedef SubEntityIteratorBack<dimension> VertexIteratorBack;
    typedef SubEntityIteratorBack<0> ElementIteratorBack;

    virtual int nVertices(Dune::RefinementIntervals tag) const = 0;

    VertexIterator vBegin(Dune::RefinementIntervals tag) const;

    VertexIterator vEnd(Dune::RefinementIntervals tag) const;

    virtual int nElements(Dune::RefinementIntervals tag) const = 0;

    ElementIterator eBegin(Dune::RefinementIntervals tag) const;

    ElementIterator eEnd(Dune::RefinementIntervals tag) const;

    virtual ~VirtualRefinement()
    {}

  protected:
    virtual VertexIteratorBack *vBeginBack(Dune::RefinementIntervals tag) const = 0;
    virtual VertexIteratorBack *vEndBack(Dune::RefinementIntervals tag) const = 0;
    virtual ElementIteratorBack *eBeginBack(Dune::RefinementIntervals tag) const = 0;
    virtual ElementIteratorBack *eEndBack(Dune::RefinementIntervals tag) const = 0;
  };

  template<int dimension, class CoordType>
  template<int codimension>
  struct VirtualRefinement<dimension, CoordType>::Codim
  {
    class SubEntityIterator;
  };

  // ////////////////////////
  //
  // The refinement builder
  //

  template<int dimension, class CoordType>
  VirtualRefinement<dimension, CoordType> &
  buildRefinement(GeometryType geometryType, GeometryType coerceTo);

} // namespace Dune

#include "virtualrefinement.cc"

#endif // DUNE_GEOMETRY_VIRTUALREFINEMENT_HH