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;
27 class AliTRDdigitizer : public AliDigitizer {
32 AliTRDdigitizer(const Text_t *name, const Text_t *title);
33 AliTRDdigitizer(AliRunDigitizer *manager, const Text_t *name, const Text_t *title);
34 AliTRDdigitizer(AliRunDigitizer *manager);
35 AliTRDdigitizer(const AliTRDdigitizer &d);
36 virtual ~AliTRDdigitizer();
37 AliTRDdigitizer &operator=(const AliTRDdigitizer &d);
39 virtual void Copy(TObject &d) const;
40 virtual Bool_t InitDetector();
41 void InitOutput(Int_t iEvent);
42 virtual void Exec(Option_t *option = 0);
43 virtual Bool_t Open(const Char_t *file, Int_t nEvent = 0);
44 virtual Bool_t Open(AliRunLoader *runLoader, Int_t nEvent = 0);
45 virtual Bool_t MakeBranch(TTree *tree) const;
46 virtual Bool_t MakeDigits();
48 virtual void AddSDigitsManager(AliTRDdigitsManager *manager);
49 virtual void DeleteSDigitsManager();
50 virtual Bool_t ConvertSDigits();
51 virtual Bool_t MergeSDigits();
52 virtual Bool_t SDigits2Digits();
53 virtual Bool_t WriteDigits() const;
55 virtual void SetCompress(Int_t c = 1) { fCompress = c; }
56 virtual void SetSDigits(Int_t v = 1) { fSDigits = v; }
57 virtual void SetSDigitsScale(Float_t s) { fSDigitsScale = s; }
58 virtual void SetEvent(Int_t v = 0) { fEvent = v; }
59 virtual void SetManager(AliTRDdigitsManager *man) { fDigitsManager = man; }
60 virtual void SetGeometry(AliTRDgeometry *geo) { fGeo = geo; }
61 virtual void SetMergeSignalOnly(Bool_t m = kTRUE) { fMergeSignalOnly = m; }
63 Bool_t GetCompress() const { return fCompress; }
64 Bool_t GetSDigits() const { return fSDigits; }
65 Float_t GetSDigitsScale() const { return fSDigitsScale; }
66 Float_t GetDiffusionT(Float_t vdrift);
67 Float_t GetDiffusionL(Float_t vdrift);
68 Float_t GetLorentzFactor(Float_t vdrift);
70 virtual Double_t TimeStruct(Float_t vdrift, Double_t time, Double_t z);
71 virtual Int_t Diffusion(Float_t vdrift, Double_t absdriftlength
72 , Double_t &lRow, Double_t &lCol, Double_t &lTime);
73 virtual Int_t ExB(Float_t vdrift, Double_t driftlength, Double_t &lRow);
75 AliTRDdigitsManager *Digits() const { return fDigitsManager; }
79 void SampleTimeStruct(Float_t vdrift);
80 void RecalcDiffusion(Float_t vdrift);
82 AliRunLoader *fRunLoader; //! Local pointer
83 AliTRDdigitsManager *fDigitsManager; //! Manager for the output digits
84 AliTRDdigitsManager *fSDigitsManager; //! Manager for the summed input s-digits
85 TList *fSDigitsManagerList; //! List of managers of input s-digits
86 AliTRD *fTRD; //! TRD detector class
87 AliTRDgeometry *fGeo; //! TRD geometry
88 AliTRDfeeParam *fFee; // Fee Parameters
90 Int_t fEvent; //! Event number
91 Int_t *fMasks; //! Masks for the merging
92 Bool_t fCompress; // Switch to keep only compressed data in memory
93 Bool_t fSDigits; // Switch for the summable digits
94 Float_t fSDigitsScale; // Scale factor for the summable digits
95 Bool_t fMergeSignalOnly; // Merge only detectors that contain a signal
97 Float_t fDiffLastVdrift; // The structures are valid for fLastVdrift (caching)
98 Float_t fDiffusionT; // Transverse drift coefficient
99 Float_t fDiffusionL; // Longitudinal drift coefficient
100 Float_t fOmegaTau; // Tangens of the Lorentz angle
101 Float_t fLorentzFactor; // Factor due to Lorentz force
103 Float_t fTimeLastVdrift; // The structures are valid for fLastVdrift (caching)
104 Float_t *fTimeStruct1; //! Time Structure of Drift Cells
105 Float_t *fTimeStruct2; //! Time Structure of Drift Cells
106 Float_t fVDlo; // Lower drift velocity, for interpolation
107 Float_t fVDhi; // Higher drift velocity, for interpolation
111 virtual Bool_t Init();
113 ClassDef(AliTRDdigitizer,15) // Produces TRD-Digits