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;
25 class AliTRDdataArrayF;
26 class AliTRDsegmentArray;
28 class AliTRDdigitizer : public AliDigitizer {
33 AliTRDdigitizer(const Text_t *name, const Text_t *title);
34 AliTRDdigitizer(AliRunDigitizer *manager, const Text_t *name, const Text_t *title);
35 AliTRDdigitizer(AliRunDigitizer *manager);
36 AliTRDdigitizer(const AliTRDdigitizer &d);
37 virtual ~AliTRDdigitizer();
38 AliTRDdigitizer &operator=(const AliTRDdigitizer &d);
40 virtual void Copy(TObject &d) const;
41 Bool_t InitDetector();
42 void InitOutput(Int_t iEvent);
43 virtual void Exec(Option_t *option = 0);
45 virtual Bool_t Open(const Char_t *file, Int_t nEvent = 0);
46 virtual Bool_t Open(AliRunLoader *runLoader, Int_t nEvent = 0);
47 virtual Bool_t MakeBranch(TTree *tree) const;
48 virtual Bool_t WriteDigits() const;
50 virtual void AddSDigitsManager(AliTRDdigitsManager *manager);
51 virtual void DeleteSDigitsManager();
53 virtual Bool_t MakeDigits();
55 Bool_t SortHits(Float_t **hits, Int_t *nhit);
56 Bool_t ConvertHits(Int_t det, Float_t *hits, Int_t nhit, AliTRDdataArrayF *signals);
57 Bool_t ConvertSignals(Int_t det, AliTRDdataArrayF *signals);
59 Bool_t SDigits2Digits();
60 Bool_t MergeSDigits();
61 Bool_t ConvertSDigits();
63 Bool_t Signal2ADC(Int_t det, AliTRDdataArrayF *signals);
64 Bool_t Signal2SDigits(Int_t det, AliTRDdataArrayF *signals);
65 Bool_t CopyDictionary(Int_t det);
66 void CompressOutputArrays(Int_t det);
68 void SetCompress(Int_t c = 1) { fCompress = c; }
69 void SetSDigits(Int_t v = 1) { fSDigits = v; }
70 void SetEvent(Int_t v = 0) { fEvent = v; }
71 void SetManager(AliTRDdigitsManager *man) { fDigitsManager = man; }
72 void SetGeometry(AliTRDgeometry *geo) { fGeo = geo; }
73 void SetMergeSignalOnly(Bool_t m = kTRUE) { fMergeSignalOnly = m; }
75 AliTRDdigitsManager *Digits() const { return fDigitsManager; }
77 Bool_t GetCompress() const { return fCompress; }
78 Bool_t GetSDigits() const { return fSDigits; }
79 Float_t GetDiffusionT(Float_t vdrift);
80 Float_t GetDiffusionL(Float_t vdrift);
81 Float_t GetLorentzFactor(Float_t vdrift);
83 Double_t TimeStruct(Float_t vdrift, Double_t time, Double_t z);
84 Int_t Diffusion(Float_t vdrift, Double_t absdriftlength
85 , Double_t &lRow, Double_t &lCol, Double_t &lTime);
86 Int_t ExB(Float_t vdrift, Double_t driftlength, Double_t &lRow);
90 virtual Bool_t Init();
91 void SampleTimeStruct(Float_t vdrift);
92 void RecalcDiffusion(Float_t vdrift);
94 AliRunLoader *fRunLoader; //! Local pointer
95 AliTRDdigitsManager *fDigitsManager; //! Manager for the output digits
96 AliTRDdigitsManager *fSDigitsManager; //! Manager for the summed input s-digits
97 TList *fSDigitsManagerList; //! List of managers of input s-digits
98 AliTRD *fTRD; //! TRD detector class
99 AliTRDgeometry *fGeo; //! TRD geometry
101 Int_t fEvent; //! Event number
102 Int_t *fMasks; //! Masks for the merging
103 Bool_t fCompress; // Switch to keep only compressed data in memory
104 Bool_t fSDigits; // Switch for the summable digits
105 Bool_t fMergeSignalOnly; // Merge only detectors that contain a signal
107 Float_t fDiffLastVdrift; // The structures are valid for fLastVdrift (caching)
108 Float_t fDiffusionT; // Transverse drift coefficient
109 Float_t fDiffusionL; // Longitudinal drift coefficient
110 Float_t fOmegaTau; // Tangens of the Lorentz angle
111 Float_t fLorentzFactor; // Factor due to Lorentz force
113 Float_t fTimeLastVdrift; // The structures are valid for fLastVdrift (caching)
114 Float_t *fTimeStruct1; //! Time Structure of Drift Cells
115 Float_t *fTimeStruct2; //! Time Structure of Drift Cells
116 Float_t fVDlo; // Lower drift velocity, for interpolation
117 Float_t fVDhi; // Higher drift velocity, for interpolation
119 ClassDef(AliTRDdigitizer,17) // Produces TRD-Digits