MGInterp.H

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/*   _______              __
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//
// This software is copyright (C) by the Lawrence Berkeley
// National Laboratory.  Permission is granted to reproduce
// this software for non-commercial purposes provided that
// this notice is left intact.
// 
// It is acknowledged that the U.S. Government has rights to
// this software under Contract DE-AC03-765F00098 between
// the U.S.  Department of Energy and the University of
// California.
//
// This software is provided as a professional and academic
// contribution for joint exchange. Thus it is experimental,
// is provided ``as is'', with no warranties of any kind
// whatsoever, no support, no promise of updates, or printed
// documentation. By using this software, you acknowledge
// that the Lawrence Berkeley National Laboratory and
// Regents of the University of California shall have no
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//

#ifndef _MGINTERP_H_
#define _MGINTERP_H_

#include "REAL.H"
#include "LevelData.H"
#include "BaseFab.H"
#include "FArrayBox.H"
#include "ProblemDomain.H"

class DisjointBoxLayout;


class MGInterp
{
public:
  MGInterp();

  ~MGInterp();

  MGInterp(const DisjointBoxLayout& a_fineDomain,
           int                      a_numcomps,
           int                      a_refRatio,
           const Box&               a_problemDomain);

  MGInterp(const DisjointBoxLayout& a_fineDomain,
           int                      a_numcomps,
           int                      a_refRatio,
           const ProblemDomain&     a_problemDomain);


  void define(const DisjointBoxLayout& a_fineDomain,     // the fine level domain
              int                      a_numcomps,       // the number of components
              int                      a_refRatio,       // the refinement ratio
              const Box&               a_problemDomain); // problem domain


  void define(const DisjointBoxLayout& a_fineDomain,     // the fine level domain
              int                      a_numcomps,       // the number of components
              int                      a_refRatio,       // the refinement ratio
              const ProblemDomain&     a_problemDomain); // problem domain


  void interpToFine(LevelData<FArrayBox>&       a_fineData,
                    const LevelData<FArrayBox>& a_coarseData);

  bool isDefined() const;

protected:
  bool m_isDefined;

  // the refinement ratio
  int m_refRatio;

  // work array for the coarse level data in a domain that is the
  // outline of the fine level domain on the coarse level
  //
  LevelData<FArrayBox> m_coarsenedFineData;
  DisjointBoxLayout m_grids;

  // problem domain
  ProblemDomain m_problemDomain;
};

#endif

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