// -------------------------------------------------------------------------
// -----                  CbmLitParabolicTrackExtrapolator header file               -----
// -----                  Created 30/10/07  by A. Lebedev               -----
// -------------------------------------------------------------------------


/** CbmLitParabolicTrackExtrapolator.h
 *@author A.Lebedev <alebedev@jinr.ru>
 **
 ** 
 **/ 



#ifndef CBMLITPARABOLICTRACKEXTRAPOLATOR_H
#define CBMLITPARABOLICTRACKEXTRAPOLATOR_H

#include "base/CbmTrackExtrapolator.h"

#include "CbmTrackParam.h"
#include "CbmField.h"

class CbmLitParabolicTrackExtrapolator: public CbmTrackExtrapolator {

public:
   
   // constructor
   CbmLitParabolicTrackExtrapolator();
   
   // distructor
   virtual ~CbmLitParabolicTrackExtrapolator();
   
   // derived from CbmTool
   virtual void Initialize();
   virtual void Finalize();
   
   // Extrapolation 
   virtual void Extrapolate( const CbmTrackParam *pParamIn,
                                   CbmTrackParam *pParamOut,
                                   Double_t zOut);
                                 
   virtual void Extrapolate( CbmTrackParam *pParam, 
                             Double_t zOut );
   
protected:
   

   CbmField *fMagneticField;
   
   ClassDef(CbmLitParabolicTrackExtrapolator,1)
}; 

#endif //CbmLitParabolicTrackExtrapolator