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odesolv.h

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// FILE odesolv.h 

#ifndef  INCLUDED_ODESOLV_H
#define  INCLUDED_ODESOLV_H


#include "vndflags.h"
#include "vndstat.h"
#include "odenum.h"
#include "stepctrl.h"
#include "datarepr.h"


class ODE_SOLVER;

typedef ODE_SOLVER*   PtrODESolver;


class ODE_SOLVER 
{
  
public:
  
  virtual void IntegrateTo ( double tEnd, bool Continue = false ) = 0;
  
  void Integrate ( bool Continue = false );
  
  template<class T> friend T* GetDataRepr( const PtrODESolver Solver );
  
  void SetDataRepr ( const PtrDataRepr Data );  

  void SetStepControl ( const PtrStepCtrl  Step  );    
  
  const PtrStepCtrl GetStepCtrl() const;
  
  
  void VerboseOutput ( bool b );
  
  bool VerboseOutput () const;   
  
  void PrintData( ostream & os  = cout );
  
  void GraphOutput ( bool b ); 
  
  bool GraphOutput () const; 
    
  void ContinueOutput( bool b ); 
  
  bool ContinueOutput() const; 
    
  void DisplayStepSize ( const char * file_name = 0 ) const ;
  
  void DisplayOrder ( const char *file_name = 0 ) const ;
  
  bool FirstStep() const; 
  
  bool AcceptedStep() const; 
  
  
  virtual ~ODE_SOLVER();  

  
protected:
  
  ODE_SOLVER( const PtrODENumeric ODE, 
              const PtrDataRepr   Data, 
              const PtrStepCtrl   Step,
              const PtrSolverFlags Flags = new SOLVER_FLAGS,
              const PtrSolverStats Stats = new SOLVER_STATS );
  
  
  virtual void InitSolver() = 0;
  
  
  void SetErrors( double t, const INTERVAL_VECTOR & Y );
  
protected:
  
  PtrODENumeric  ODE;
  
  PtrDataRepr    DataRepr;
  
  PtrStepCtrl    StepControl;  
  
  PtrSolverFlags   SolverFlags;
  
  PtrSolverStats   SolverStats;
  
};



template<class T> T* GetDataRepr( const PtrODESolver Solver )
{
  assert(Solver);
  return static_cast<T*>( Solver->DataRepr );
}


inline const PtrStepCtrl ODE_SOLVER :: GetStepCtrl() const
{
  return StepControl;
}


inline ODE_SOLVER :: ODE_SOLVER( const PtrODENumeric  ODE,
                                 const PtrDataRepr  Data, 
                                 const PtrStepCtrl  Step,
                                 const PtrSolverFlags Flags,
                                 const PtrSolverStats Stats ) 
  : ODE(ODE), 
    DataRepr(Data), 
    StepControl(Step),
    SolverFlags( Flags ),
    SolverStats( Stats )
{ 
  assert( NotNull(ODE) );
  assert( NotNull(Data) );
  assert( NotNull(Step) );
  assert( NotNull(Flags) );
  assert( NotNull(Stats) );
}


inline void ODE_SOLVER :: SetDataRepr ( const PtrDataRepr Data ) 
{ 
  assert(Data);
  DELETE(DataRepr);
  DataRepr = Data; 
}


inline void ODE_SOLVER :: Integrate( bool Continue )
{
  IntegrateTo( ODE->GetTend(), Continue );
}
  

inline ODE_SOLVER :: ~ODE_SOLVER() 
{ 
  DELETE(ODE); 
  DELETE(DataRepr); 
  DELETE(StepControl); 
  DELETE(SolverFlags);
  DELETE(SolverStats);
}


inline void ODE_SOLVER :: SetStepControl  ( const PtrStepCtrl Step ) 
{
  assert( NotNull(Step) );
  DELETE(StepControl); 
  StepControl = Step; 
}


inline void ODE_SOLVER :: GraphOutput( bool b )
{
  SolverFlags->GraphOutput(b);
}


inline bool ODE_SOLVER :: GraphOutput() const 
{
  return  SolverFlags->GraphOutput();
}  


inline void ODE_SOLVER :: VerboseOutput( bool b )
{
  SolverFlags->VerboseOutput( b );
}


inline bool ODE_SOLVER :: VerboseOutput() const 
{ 
  return SolverFlags->VerboseOutput();
}


inline void ODE_SOLVER :: ContinueOutput( bool b )
{
  assert( GraphOutput() && b );
  SolverFlags->ContinueOutput( b );
}


inline bool ODE_SOLVER :: ContinueOutput() const 
{ 
  return SolverFlags->ContinueOutput();
}


inline bool ODE_SOLVER :: FirstStep() const 
{ 
  return SolverFlags->FirstStep();
}


inline bool ODE_SOLVER :: AcceptedStep() const 
{ 
  return SolverFlags->AcceptedStep();
}


#endif
  

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