//---------------------------------------------------------------
// File and Version Information: 
// $Id: TSvtTrack.hh,v 1.5 2002/11/07 20:04:06 murat Exp $
//
// Description: Definition of track included in the SVTD bank 
//            
//
// Author List:
//     L. Moneta      Original author
//     Subir Sarkar   Adapted to Stntuple
//-------------------------------------------------------------- 

#ifndef TSvtTrack_hh
#define TSvtTrack_hh 

#include "TObject.h"

// Number of words for each track, a global!
enum {
  SVTD_SIZE = 7
};

class TSvtTrack : public TObject
{ 

public: 
                        // ****** constructors and destructor
  TSvtTrack();
  TSvtTrack(Int_t size, Int_t *data);
  virtual ~TSvtTrack();
                        // ****** Accessors
  const Int_t *Words() {return fWords;}
  Int_t Word(const Int_t i) {
    return (i >= 0 && i < SVTD_SIZE) ? fWords[i]
                                     : -1;
  }
                       // **** Unpack SVTD words and produce 
                       // standard quantities (d0, phi, etc..)
  Float_t Phi          () const ;
  Int_t   Zin          () const ;
  Int_t   Zout         () const ;
  Float_t Curv         () const ;
  Float_t D0           () const ; 
  Int_t   Wedge        () const ;
  Int_t   Road         () const ;
  Float_t Chi2         () const ;
  Int_t   XftNumber    () const ;
  Int_t   TFStatus     () const ;
  Int_t   FitQuality   () const ;
  Int_t   TFError      () const ;
  Int_t   HitOverflow  () const ;
  Int_t   LayerOverflow() const ;
  Int_t   CombOverflow () const ;
  Int_t   InvalidData  () const ;
  Int_t   FitOverflow  () const ;
  Int_t   FifoOverflow () const ;
  Int_t   ErrorOR      () const ;
  Float_t Pt           () const ;
  Float_t Hit   (Int_t layer) const ;
  Int_t   Hit16 (Int_t layer) const ;
  Int_t   HitLCF(Int_t layer) const ;
  Int_t   HitEF (Int_t layer) const ;

                 // **** overloaded methods of TObject

  void Clear(Option_t *opt = "");
  void Print(Option_t *opt = "") const;

  ClassDef (TSvtTrack, 1)
  
public:  

  // To convert from strip/16 to cm:  
  // using SVXII layers 0, 1, 2, 3, 4 
  static const Float_t fgHitScale[5]; 
  static const Float_t fgPhiScale;
  static const Float_t fgD0Scale;
  static const Float_t fgCurScale;
  static const Float_t fgChiScale;

protected:  

  Int_t fWords[SVTD_SIZE];
}; 

#endif