FineInterp.H

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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
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//
#ifndef _FINE_INTERP_H_
#define _FINE_INTERP_H_

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

class DisjointBoxLayout;


class FineInterp
{
public:

  FineInterp();


  ~FineInterp();


  FineInterp(const DisjointBoxLayout& a_fine_domain,
             const int& a_numcomps,
             const int& a_ref_ratio,
             const Box& a_fine_problem_domain);


  FineInterp(const DisjointBoxLayout& a_fine_domain,
             const int& a_numcomps,
             const int& a_ref_ratio,
             const ProblemDomain& a_fine_problem_domain);


  void 
  define(const DisjointBoxLayout& a_fine_domain, // the fine level domain
         const int& a_numcomps,                   // the number of components
         const int& a_ref_ratio,                  // the refinement ratio
         const Box& a_fine_problem_domain);      // problem domain



  void 
  define(const DisjointBoxLayout& a_fine_domain, // the fine level domain
         const int& a_numcomps,                   // the number of components
         const int& a_ref_ratio,                  // the refinement ratio
         const ProblemDomain& a_fine_problem_domain);



  bool 
  isDefined() const;


  void 
  interpToFine(LevelData<FArrayBox>& a_fine_data,
               const LevelData<FArrayBox>& a_coarse_data);

protected:
  void
  interpGridData(BaseFab<Real>& a_fine,
                 const BaseFab<Real>& a_coarse,
                 const Box& a_coarsened_fine_box,
                 int a_ref_ratio)
    const;

protected:
  bool is_defined;
  // the refinement ratio
  int m_ref_ratio;
  // 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_coarsened_fine_data;
  // coarse level problem domain
  ProblemDomain m_coarse_problem_domain;
};

#endif

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