Line data    Source code

       1             : #ifndef ALIEMCALSDIGITIZER_H
       2             : #define ALIEMCALSDIGITIZER_H
       3             : /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
       4             :  * See cxx source for full Copyright notice                               */
       5             : /* $Id$ */
       6             : //_________________________________________________________________________
       7             : // This is a class that makes SDigits out of Hits
       8             : // A Summable Digits is the sum of all hits originating 
       9             : // from one in one tower of the EMCAL 
      10             : // A threshold for assignment of the primary to SDigit is applied 
      11             : //
      12             : // SDigits need to hold the energy sum of the hits, but AliEMCALDigit
      13             : // can (should) only store amplitude.  Therefore, the SDigit energy is
      14             : // "digitized" before being stored and must be "calibrated" back to an
      15             : // energy before SDigits are summed to form true Digits
      16             : //
      17             : //
      18             : //*-- Author: Sahal Yacoob (LBL)
      19             : // based on : AliPHOSSDigitizer
      20             : //_________________________________________________________________________
      21             :  
      22             : // --- ROOT system ---
      23             : #include "TNamed.h"
      24             : class TBrowser;
      25             : 
      26             : // --- Standard library ---
      27             : 
      28             : // --- AliRoot header files ---
      29             : #include "AliConfig.h"
      30             : 
      31             : class AliEMCALSDigitizer: public TNamed {
      32             : 
      33             : public:
      34             :   AliEMCALSDigitizer() ;          // ctor
      35             :   AliEMCALSDigitizer(const char * alirunFileName, const char * eventFolderName = AliConfig::GetDefaultEventFolderName()) ; 
      36             :   AliEMCALSDigitizer(const AliEMCALSDigitizer & sd) ;
      37             :   AliEMCALSDigitizer& operator = (const AliEMCALSDigitizer& source) ;
      38             :   virtual ~AliEMCALSDigitizer(); // dtor
      39             : 
      40             :   Float_t       Digitize(Float_t energy)const; //convert energy in GeV to int amplitude
      41             :   Float_t       Calibrate(Float_t amp)const;  //opposite of Digitize()
      42             : 
      43             :   virtual void  Digitize(Option_t *option=""); 
      44           0 :   Int_t         GetSDigitsInRun() const {return fSDigitsInRun ;}  
      45             :   virtual void  Print(Option_t *option="") const;
      46             :   void          Print1(Option_t *option="all");  // *MENU*
      47           0 :   void          SetEventFolderName(TString name) { fEventFolderName = name ; }
      48          10 :   void          SetEventRange(Int_t first=0, Int_t last=-1) {fFirstEvent=first; fLastEvent=last; }
      49             : 
      50             :   Bool_t operator == (const AliEMCALSDigitizer & sd) const ;
      51             : 
      52             :   virtual void Browse(TBrowser* b);
      53             : 
      54             : private:
      55             :   void     Init() ;
      56             :   void     InitParameters() ; 
      57             :   void     PrintSDigits(Option_t * option) ;
      58             :   void     Unload() const ;
      59             : 
      60             : private:
      61             :   Float_t fA ;                     // Pedestal parameter
      62             :   Float_t fB ;                     // Slope Digitizition parameters
      63             :   Float_t fECPrimThreshold ;       // To store primary if EC Shower Elos > threshold
      64             :   Bool_t  fDefaultInit;            //! Says if the object was created by defaut ctor (only parameters are initialized)
      65             :   TString fEventFolderName;        // event folder name
      66             :   Bool_t  fInit ;                  //! tells if initialisation went OK, will revent exec if not
      67             :   Int_t   fSDigitsInRun ;          //! Total number of sdigits in one run
      68             :   Int_t   fFirstEvent;             // first event to process
      69             :   Int_t   fLastEvent;              // last  event to process
      70             :   Float_t fSampling;               // See AliEMCALGeometry
      71             :   TClonesArray* fHits;             //-> Temporal array with hits
      72             :         
      73         162 :   ClassDef(AliEMCALSDigitizer,8)  // description 
      74             : };
      75             : 
      76             : #endif // AliEMCALSDIGITIZER_H
      77             :