EndcapHelixFitter.h

#ifndef EndcapHelixFitter_h
#define EndcapHelixFitter_h

#include "EVENT/Track.h"
#include "EVENT/TrackerHit.h"

#include "lcio.h"



using namespace lcio;



class EndcapHelixFitterException : public std::exception {
   
   
protected:
   std::string message ;
   
   EndcapHelixFitterException(){  /*no_op*/ ; } 
   
public: 
   virtual ~EndcapHelixFitterException() throw() { /*no_op*/; } 
   
   EndcapHelixFitterException( const std::string& text ){
      message = "EndcapHelixFitterException: " + text ;
   }
   
   virtual const char* what() const  throw() { return  message.c_str() ; } 
   
};



class EndcapHelixFitter{
   
   
public:
   
   EndcapHelixFitter( Track* track ) throw( EndcapHelixFitterException );
   EndcapHelixFitter( std::vector < TrackerHit* > trackerHits ) throw( EndcapHelixFitterException );
   
   
   double getChi2(){ return _chi2; }
   int getNdf(){ return _Ndf; }
   
   float getOmega(){ return _omega; }
   float getTanLambda(){ return _tanLambda; }
   float getPhi0(){ return _phi0; }
   float getD0(){ return _d0; }
   float getZ0(){ return _z0; }
   
private:
   
  
   
   void fit()throw( EndcapHelixFitterException );
   
   double _chi2;
   int _Ndf;
   
   float _omega;
   float _tanLambda;
   float _phi0;
   float _d0;
   float _z0;
   
   std::vector< TrackerHit* > _trackerHits;
  
   
};

#endif