1 #ifndef ALITRDDIGITIZER_H
2 #define ALITRDDIGITIZER_H
3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
8 ////////////////////////////////////////////////////////////////////////////
10 // Produces digits from the hits information //
12 ////////////////////////////////////////////////////////////////////////////
14 #include "AliDigitizer.h"
19 class AliRunDigitizer;
23 class AliTRDdigitsManager;
26 class AliTRDdigitizer : public AliDigitizer {
31 AliTRDdigitizer(const Text_t *name, const Text_t *title);
32 AliTRDdigitizer(AliRunDigitizer *manager, const Text_t *name, const Text_t *title);
33 AliTRDdigitizer(AliRunDigitizer *manager);
34 AliTRDdigitizer(const AliTRDdigitizer &d);
35 virtual ~AliTRDdigitizer();
36 AliTRDdigitizer &operator=(const AliTRDdigitizer &d);
38 virtual void Copy(TObject &d) const;
39 virtual Bool_t InitDetector();
40 void InitOutput(Int_t iEvent);
41 virtual void Exec(Option_t *option = 0);
42 virtual Bool_t Open(const Char_t *file, Int_t nEvent = 0);
43 virtual Bool_t Open(AliRunLoader *runLoader, Int_t nEvent = 0);
44 virtual Bool_t MakeBranch(TTree *tree) const;
45 virtual Bool_t MakeDigits();
47 virtual void AddSDigitsManager(AliTRDdigitsManager *manager);
48 virtual void DeleteSDigitsManager();
49 virtual Bool_t ConvertSDigits();
50 virtual Bool_t MergeSDigits();
51 virtual Bool_t SDigits2Digits();
52 virtual Bool_t WriteDigits() const;
54 virtual void SetCompress(Int_t c = 1) { fCompress = c; }
55 virtual void SetSDigits(Int_t v = 1) { fSDigits = v; }
56 virtual void SetSDigitsScale(Float_t s) { fSDigitsScale = s; }
57 virtual void SetEvent(Int_t v = 0) { fEvent = v; }
58 virtual void SetManager(AliTRDdigitsManager *man) { fDigitsManager = man; }
59 virtual void SetGeometry(AliTRDgeometry *geo) { fGeo = geo; }
60 virtual void SetMergeSignalOnly(Bool_t m = kTRUE) { fMergeSignalOnly = m; }
62 Bool_t GetCompress() const { return fCompress; }
63 Bool_t GetSDigits() const { return fSDigits; }
64 Float_t GetSDigitsScale() const { return fSDigitsScale; }
65 Float_t GetDiffusionT(Float_t vdrift);
66 Float_t GetDiffusionL(Float_t vdrift);
67 Float_t GetLorentzFactor(Float_t vdrift);
69 virtual Double_t TimeStruct(Float_t vdrift, Double_t time, Double_t z);
70 virtual Int_t Diffusion(Float_t vdrift, Double_t absdriftlength
71 , Double_t &lRow, Double_t &lCol, Double_t &lTime);
72 virtual Int_t ExB(Float_t vdrift, Double_t driftlength, Double_t &lRow);
74 AliTRDdigitsManager *Digits() const { return fDigitsManager; }
78 void SampleTimeStruct(Float_t vdrift);
79 void RecalcDiffusion(Float_t vdrift);
81 AliRunLoader *fRunLoader; //! Local pointer
82 AliTRDdigitsManager *fDigitsManager; //! Manager for the output digits
83 AliTRDdigitsManager *fSDigitsManager; //! Manager for the summed input s-digits
84 TList *fSDigitsManagerList; //! List of managers of input s-digits
85 AliTRD *fTRD; //! TRD detector class
86 AliTRDgeometry *fGeo; //! TRD geometry
88 Int_t fEvent; //! Event number
89 Int_t *fMasks; //! Masks for the merging
90 Bool_t fCompress; // Switch to keep only compressed data in memory
91 Bool_t fSDigits; // Switch for the summable digits
92 Float_t fSDigitsScale; // Scale factor for the summable digits
93 Bool_t fMergeSignalOnly; // Merge only detectors that contain a signal
95 Float_t fDiffLastVdrift; // The structures are valid for fLastVdrift (caching)
96 Float_t fDiffusionT; // Transverse drift coefficient
97 Float_t fDiffusionL; // Longitudinal drift coefficient
98 Float_t fOmegaTau; // Tangens of the Lorentz angle
99 Float_t fLorentzFactor; // Factor due to Lorentz force
101 Float_t fTimeLastVdrift; // The structures are valid for fLastVdrift (caching)
102 Float_t *fTimeStruct1; //! Time Structure of Drift Cells
103 Float_t *fTimeStruct2; //! Time Structure of Drift Cells
104 Float_t fVDlo; // Lower drift velocity, for interpolation
105 Float_t fVDhi; // Higher drift velocity, for interpolation
109 virtual Bool_t Init();
111 ClassDef(AliTRDdigitizer,14) // Produces TRD-Digits