AliFMDHitDigitizer.h

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#ifndef ALIFMDHITDIGITIZER_H
#define ALIFMDHITDIGITIZER_H
/* Copyright(c) 1998-2000, ALICE Experiment at CERN, All rights
 * reserved. 
 *
 * See cxx source for full Copyright notice                               
 */
// Classses to make Hits into digits and summable digits
//    
//    Digits consists of
//    - Detector #
//    - Ring ID                                             
//    - Sector #     
//    - Strip #
//    - ADC count in this channel
//
#ifndef ALIFMDBASEDIGITIZER_H
# include <AliFMDBaseDigitizer.h>
#endif

//====================================================================
class TClonesArray;
class AliFMD;
class AliLoader;
class AliRunLoader;
class AliFMDDigit;
class AliStack;



//====================================================================
class AliFMDHitDigitizer : public AliFMDBaseDigitizer
{
public:
  enum Output_t { 
    kDigits, 
    kSDigits
  };
    
  AliFMDHitDigitizer() 
    : AliFMDBaseDigitizer(), 
      fOutput(kDigits), 
      fHoldTime(2e-6),
      fStack(0)
  {}
  AliFMDHitDigitizer(AliFMD* fmd, Output_t  output);
  virtual ~AliFMDHitDigitizer() {}
  void Digitize(Option_t* option="");
  void SetHoldTime(Double_t holdT=2e-6) { fHoldTime = holdT; }
  Double_t GetHoldTime() const { return fHoldTime; }
protected:
  AliFMDHitDigitizer(const AliFMDHitDigitizer& o) 
    : AliFMDBaseDigitizer(o),
      fOutput(o.fOutput), 
      fHoldTime(2e-6),
      fStack(o.fStack)
  {}
  AliFMDHitDigitizer& operator=(const AliFMDHitDigitizer& o); 
  TTree* MakeOutputTree(AliLoader* loader);
  void SumContributions(TBranch* hitsBranch);
  UShort_t MakePedestal(UShort_t  detector, 
      Char_t    ring, 
      UShort_t  sector, 
      UShort_t  strip) const;
  void AddDigit(UShort_t       detector, 
    Char_t         ring,
    UShort_t       sector, 
    UShort_t       strip, 
    Float_t        edep, 
    UShort_t       count1, 
    Short_t        count2, 
    Short_t        count3,
    Short_t        count4, 
    UShort_t       ntot, 
    UShort_t       nprim,
    const TArrayI& trackrefs) const;
  void CheckDigit(AliFMDDigit*    digit,
      UShort_t        nhits,
      const TArrayI&  counts);
  void StoreDigits(const AliLoader* loader);
  

  Output_t      fOutput;           // Output mode
  Double_t      fHoldTime;         // Stop of integration
  AliStack*     fStack;            // Kinematics

  ClassDef(AliFMDHitDigitizer,1) // Make Digits from Hits
};


#endif
//____________________________________________________________________
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//   mode: C++
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// EOF
//