ExtrapBC.H

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#ifndef _EXTRAPBC_H_
#define _EXTRAPBC_H_

#include "Box.H"
#include "FArrayBox.H"
#include "Vector.H"
#include "LoHiSide.H"
#include "GhostBC.H"

class ExtrapBC : public BoxGhostBC
{
public:
  friend class DomainGhostBC;

  ~ExtrapBC();

  ExtrapBC();
  
  ExtrapBC(int dir, Side::LoHiSide sd);

  ExtrapBC(int dir, Side::LoHiSide sd, 
            const Interval& a_comps);

protected:

  virtual void
  fillBCValues(FArrayBox& a_neumfac,
               FArrayBox& a_dircfac,
               FArrayBox& a_inhmval,
               Real a_dx,
               const ProblemDomain& a_domain) const;

  virtual void applyHomogeneousBCs(FArrayBox& a_state,
                                   const ProblemDomain& a_domain,
                                   Real a_dx) const;
  
  virtual void applyInhomogeneousBCs(FArrayBox& a_state,
                                     const ProblemDomain& a_domain,
                                     Real a_dx) const;
  
  virtual void applyExtrapBCs(FArrayBox& a_state, 
                              const ProblemDomain& a_domain,
                              Real a_dx) const;


  virtual void
  fillBCValues(FArrayBox& a_neumfac,
               FArrayBox& a_dircfac,
               FArrayBox& a_inhmval,
               Real a_dx,
               const Box& a_domain) const;

  virtual void applyHomogeneousBCs(FArrayBox& a_state,
                                   const Box& a_domain,
                                   Real a_dx) const;
  
  virtual void applyInhomogeneousBCs(FArrayBox& a_state,
                                     const Box& a_domain,
                                     Real a_dx) const;
  
  virtual void applyExtrapBCs(FArrayBox& a_state, 
                              const Box& a_domain,
                              Real a_dx) const;


  BoxGhostBC* new_boxghostbc() const;

private:
  ExtrapBC(const ExtrapBC& neuin){;}
  void operator=(const ExtrapBC& neuin){;}

};



#endif

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