Reconstruction/TrkReco/include/TrkReco/TCosmicFitter.h

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//-----------------------------------------------------------------------------
// $Id: TCosmicFitter.h,v 1.8 2010/03/31 09:58:59 liucy Exp $
//-----------------------------------------------------------------------------
// Filename : TCosmicFitter.h
// Section  : Tracking
// Owner    : Jun-ichi Suzuki
// Email    : jsuzuki@bmail.kek.jp
//-----------------------------------------------------------------------------
// Description : A class to fit a TTrackBase object to a helix.
//               See http://bsunsrv1.kek.jp/~yiwasaki/tracking/
//-----------------------------------------------------------------------------
 
#ifndef TCOSMICFITTER_FLAG_
#define TCOSMICFITTER_FLAG_
 
#ifdef TRKRECO_DEBUG_DETAIL
#  ifndef TRKRECO_DEBUG
#    define TRKRECO_DEBUG
#  endif
#endif
#include "TrkReco/TMFitter.h"
// #define HEP_SHORT_NAMES
#include "CLHEP/Matrix/Vector.h"
// #include "helix/Helix.h"
// #include "TrkReco/Helix.h"
#include "TrackUtil/Helix.h"
 
#include "GaudiKernel/IInterface.h"
#include "GaudiKernel/Kernel.h"
#include "GaudiKernel/Service.h"
#include "MagneticFieldSvc/IBesMagFieldSvc.h"
// #include "MagneticField/MagneticFieldSvc.h"
 
#include "CLHEP/Matrix/SymMatrix.h"
#include "CLHEP/Matrix/Vector.h"
#include "CLHEP/Vector/LorentzVector.h"
#include "CLHEP/Vector/ThreeVector.h"
 
using CLHEP::HepVector;
 
class TMLink;
 
/// A class to fit a TTrackBase object to a helix.
class TCosmicFitter : public TMFitter {
 
public:
  /// Constructor.
  TCosmicFitter( const std::string& name );
 
  /// Destructor
  virtual ~TCosmicFitter();
 
public: // Selectors
  /// dumps debug information.
  void dump( const std::string& message = std::string( "" ),
             const std::string& prefix  = std::string( "" ) ) const;
 
public: // Modifiers
  int fit( TTrackBase& ) const;
  int fit( TTrackBase&, float t0Offset ) const;
 
  int fitWithCathode( TTrackBase&, float t0Offset = 0., float windowSize = 0.6,
                      int SysCorr = 0 ); // added by matsu ( 1999/07/05 )
 
private:
  /// calculates dXda. 'link' and 'dPhi' are inputs. Others are outputs.
  int dxda( const TMLink& link, const Helix& helix, double dPhi, HepVector& dxda,
            HepVector& dyda, HepVector& dzda, int doSagCorrection ) const;
 
private:
  IBesMagFieldSvc*         getPmgnIMF() const;
  mutable IBesMagFieldSvc* m_pmgnIMF;
};
 
//-----------------------------------------------------------------------------
 
#ifdef TRKRECO_NO_INLINE
#  define inline
#else
#  undef inline
#  define TCOSMICFITTER_INLINE_DEFINE_HERE
#endif
 
#ifdef TCOSMICFITTER_INLINE_DEFINE_HERE
 
#endif
 
#undef inline
 
#endif /* TCOSMICFITTER_FLAG_ */