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EBIndexSpace.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
// liability with respect to the infringement of other
// copyrights by any part of this software.
//
//  ANAG, LBNL, DTG

#ifndef _EBINDEXSPACE_H_
#define _EBINDEXSPACE_H_

#include "REAL.H"
#include "IntVect.H"
#include "IntVectSet.H"
#include "VolIndex.H"
#include "FaceIndex.H"
#include "IntVectSet.H"
#include "DisjointBoxLayout.H"
#include "LevelData.H"
#include "EBISBox.H"
#include "GeometryService.H"
#include "EBISLayout.H"
#include "HDF5.H"


class EBISLevel
{
public:


  void coarsenVoFs(EBISLevel& a_fineEBIS);

  void fixFineToCoarse(EBISLevel& a_fineEBIS);

  void coarsenFaces(EBISLevel& a_fineEBIS);

  EBISLevel();

  EBISLevel(const Box& a_domain,
            const RealVect& a_origin,
            const Real& a_dx,
            const GeometryService& a_geoserver);


  EBISLevel(EBISLevel& a_finerLevel);

  EBISLevel(HDF5Handle& handle);

  void
  write(HDF5Handle& handle);



  void sanityCheck();

  void fillEBISLayout(EBISLayout& a_ebis,
                      const DisjointBoxLayout& a_grids,
                      const int& nghost) const;
  ~EBISLevel();

  const Box& getDomain() const;

  const DisjointBoxLayout& getGrids() const;

  DisjointBoxLayout getIrregGrids() const;
  
  const Real& getDX() const;

  const RealVect& getOrigin() const;
private:

  DisjointBoxLayout m_grids;

  Box m_domain;

  RealVect m_origin;

  Real m_dx;

  LevelData<EBGraph> m_graph;
  
  static Real s_tolerance;
  LevelData<EBData>  m_data;

  //make grids for this level.
  static void
  makeBoxes(Vector<Box>& a_boxes, 
            const Box& a_domain);

  //these are disallowed
  void operator=(const EBISLevel& ebiin)
  {
    MayDay::Error("EBISLevel::operator= not allowed");
  }

  EBISLevel(const EBISLevel& ebiin)
  {
    MayDay::Error("EBISLevel::copy constructor not allowed");
  }
};


class EBIndexSpace
{
public:

  void
  define(const Box& a_domain,
         const RealVect& a_origin,
         const Real& a_dx,
         const GeometryService& a_geoserver,
         int a_nCellMax = -1,
                 int maxCoarsenings = -1);

  void 
  define(HDF5Handle& handle, int maxCoarsenings = -1);

  ~EBIndexSpace();

  int numLevels() const;


  int getLevel(const Box& a_domain) const;

  void fillEBISLayout(EBISLayout& a_ebis,
                      const DisjointBoxLayout& a_grids,
                      const Box& a_domain,
                      const int & nghost) const;


  bool isDefined() const;

  void clear();

  int getNCellMax() const;

  friend class Chombo_EBIS;

  void
  write(HDF5Handle& handle);

  DisjointBoxLayout getIrregGrids(int level) const
  { return m_ebisLevel[level]->getIrregGrids();}
  

private:  
  //this is private to force the singleton thing.
  EBIndexSpace();

  int  m_nCellMax;
  bool m_isDefined;

  Vector<EBISLevel*> m_ebisLevel;
  Vector<Box> m_domainLevel;
  int m_nlevels;
  static Real s_tolerance;

  //disallowed for performance reasons
  void operator=(const EBIndexSpace& ebiin)
  {
    MayDay::Error("no assignment of EBIndexSpace allowed");
  }
  EBIndexSpace(const EBIndexSpace& ebiin)
  {
    MayDay::Error("no copy construction of EBIndexSpace allowed");
  }
};

class Chombo_EBIS
{
private:

  static EBIndexSpace* s_instance;

  Chombo_EBIS()
  {;}

  ~Chombo_EBIS()
  {;}
public:

  static EBIndexSpace* instance();

};

#endif

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