HistogramManager

class HistogramManager

    public:

                       HistogramManager(TDirectory* dir)
                       HistogramManager(const HistogramManager&)
               virtual ~HistogramManager()
        static TClass* Class()
                  void Hfill(Event* event)
       virtual TClass* IsA() const
          virtual void ShowMembers(TMemberInspector& insp, char* parent)
          virtual void Streamer(TBuffer& b)
                  void StreamerNVirtual(TBuffer& b)

Data Members

    private:

      TH1F* fNtrack       
      TH1F* fNseg         
      TH1F* fTemperature  
      TH1F* fPx           
      TH1F* fPy           
      TH1F* fPz           
      TH1F* fRandom       
      TH1F* fMass2        
      TH1F* fBx           
      TH1F* fBy           
      TH1F* fMeanCharge   
      TH1F* fXfirst       
      TH1F* fXlast        
      TH1F* fYfirst       
      TH1F* fYlast        
      TH1F* fZfirst       
      TH1F* fZlast        
      TH1F* fCharge       
      TH1F* fNpoint       
      TH1F* fValid        

Class Description

                       Event and Track classes
                       =======================

  The Event class is a naive/simple example of an event structure.
     public:
        char           fType[20];
        Int_t          fNtrack;
        Int_t          fNseg;
        Int_t          fNvertex;
        UInt_t         fFlag;
        Float_t        fTemperature;
        Int_t          fMeasures[10];
        Float_t        fMatrix[4][4];
        Float_t       *fClosestDistance; //[fNvertex] indexed array!
        EventHeader    fEvtHdr;
        TClonesArray  *fTracks;
        TRefArray     *fHighPt;            //array of High Pt tracks only
        TRefArray     *fMuons;             //array of Muon tracks only
        TRef           fLastTrack;         //pointer to last track
        TRef           fHistoWeb;          //EXEC:GetHistoWeb reference to an histogram in a TWebFile
        TH1F          *fH;

   The EventHeader class has 3 data members (integers):
     public:
        Int_t          fEvtNum;
        Int_t          fRun;
        Int_t          fDate;


   The Event data member fTracks is a pointer to a TClonesArray.
   It is an array of a variable number of tracks per event.
   Each element of the array is an object of class Track with the members:
     private:
        Float_t      fPx;           //X component of the momentum
        Float_t      fPy;           //Y component of the momentum
        Float_t      fPz;           //Z component of the momentum
        Float_t      fRandom;       //A random track quantity
        Float_t      fMass2;        //The mass square of this particle
        Float_t      fBx;           //X intercept at the vertex
        Float_t      fBy;           //Y intercept at the vertex
        Float_t      fMeanCharge;   //Mean charge deposition of all hits of this track
        Float_t      fXfirst;       //X coordinate of the first point
        Float_t      fXlast;        //X coordinate of the last point
        Float_t      fYfirst;       //Y coordinate of the first point
        Float_t      fYlast;        //Y coordinate of the last point
        Float_t      fZfirst;       //Z coordinate of the first point
        Float_t      fZlast;        //Z coordinate of the last point
        Float_t      fCharge;       //Charge of this track
        Float_t      fVertex[3];    //Track vertex position
        Int_t        fNpoint;       //Number of points for this track
        Short_t      fValid;        //Validity criterion

   An example of a batch program to use the Event/Track classes is given
   in this directory: MainEvent.
   Look also in the same directory at the following macros:
     - eventa.C  an example how to read the tree
     - eventb.C  how to read events conditionally

   During the processing of the event (optionally) also a large number
   of histograms can be filled. The creation and handling of the
   histograms is taken care of by the HistogramManager class.

 Create histogram manager object. Histograms will be created
 in the "dir" directory.

 Clean up all histograms.

 Fill histograms.

Inline Functions

                 TClass* Class()
                 TClass* IsA() const
                    void ShowMembers(TMemberInspector& insp, char* parent)
                    void Streamer(TBuffer& b)
                    void StreamerNVirtual(TBuffer& b)
        HistogramManager HistogramManager(const HistogramManager&)