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 AliTRDdataArrayF;
27 class AliTRDsegmentArray;
29 class AliTRDdigitizer : public AliDigitizer {
34 AliTRDdigitizer(const Text_t *name, const Text_t *title);
35 AliTRDdigitizer(AliRunDigitizer *manager, const Text_t *name, const Text_t *title);
36 AliTRDdigitizer(AliRunDigitizer *manager);
37 AliTRDdigitizer(const AliTRDdigitizer &d);
38 virtual ~AliTRDdigitizer();
39 AliTRDdigitizer &operator=(const AliTRDdigitizer &d);
41 virtual void Copy(TObject &d) const;
42 Bool_t InitDetector();
43 void InitOutput(Int_t iEvent);
44 virtual void Exec(Option_t *option = 0);
46 virtual Bool_t Open(const Char_t *file, Int_t nEvent = 0);
47 virtual Bool_t Open(AliRunLoader *runLoader, Int_t nEvent = 0);
48 virtual Bool_t MakeBranch(TTree *tree) const;
49 virtual Bool_t WriteDigits() const;
51 virtual void AddSDigitsManager(AliTRDdigitsManager *manager);
52 virtual void DeleteSDigitsManager();
54 virtual Bool_t MakeDigits();
56 Bool_t SortHits(Float_t **hits, Int_t *nhit);
57 Bool_t ConvertHits(Int_t det, Float_t *hits, Int_t nhit, AliTRDdataArrayF *signals);
58 Bool_t ConvertSignals(Int_t det, AliTRDdataArrayF *signals);
60 Bool_t SDigits2Digits();
61 Bool_t MergeSDigits();
62 Bool_t ConvertSDigits();
64 Bool_t Signal2ADC(Int_t det, AliTRDdataArrayF *signals);
65 Bool_t Signal2SDigits(Int_t det, AliTRDdataArrayF *signals);
66 Bool_t CopyDictionary(Int_t det);
67 void CompressOutputArrays(Int_t det);
69 void SetCompress(Int_t c = 1) { fCompress = c; }
70 void SetSDigits(Int_t v = 1) { fSDigits = v; }
71 void SetEvent(Int_t v = 0) { fEvent = v; }
72 void SetManager(AliTRDdigitsManager *man) { fDigitsManager = man; }
73 void SetGeometry(AliTRDgeometry *geo) { fGeo = geo; }
74 void SetMergeSignalOnly(Bool_t m = kTRUE) { fMergeSignalOnly = m; }
76 AliTRDdigitsManager *Digits() const { return fDigitsManager; }
78 Bool_t GetCompress() const { return fCompress; }
79 Bool_t GetSDigits() const { return fSDigits; }
80 Float_t GetDiffusionT(Float_t vdrift);
81 Float_t GetDiffusionL(Float_t vdrift);
82 Float_t GetLorentzFactor(Float_t vdrift);
84 Double_t TimeStruct(Float_t vdrift, Double_t time, Double_t z);
85 Int_t Diffusion(Float_t vdrift, Double_t absdriftlength
86 , Double_t &lRow, Double_t &lCol, Double_t &lTime);
87 Int_t ExB(Float_t vdrift, Double_t driftlength, Double_t &lRow);
91 virtual Bool_t Init();
92 void SampleTimeStruct(Float_t vdrift);
93 void RecalcDiffusion(Float_t vdrift);
95 AliRunLoader *fRunLoader; //! Local pointer
96 AliTRDdigitsManager *fDigitsManager; //! Manager for the output digits
97 AliTRDdigitsManager *fSDigitsManager; //! Manager for the summed input s-digits
98 TList *fSDigitsManagerList; //! List of managers of input s-digits
99 AliTRD *fTRD; //! TRD detector class
100 AliTRDgeometry *fGeo; //! TRD geometry
101 AliTRDfeeParam *fFee; // Fee Parameters
103 Int_t fEvent; //! Event number
104 Int_t *fMasks; //! Masks for the merging
105 Bool_t fCompress; // Switch to keep only compressed data in memory
106 Bool_t fSDigits; // Switch for the summable digits
107 Bool_t fMergeSignalOnly; // Merge only detectors that contain a signal
109 Float_t fDiffLastVdrift; // The structures are valid for fLastVdrift (caching)
110 Float_t fDiffusionT; // Transverse drift coefficient
111 Float_t fDiffusionL; // Longitudinal drift coefficient
112 Float_t fOmegaTau; // Tangens of the Lorentz angle
113 Float_t fLorentzFactor; // Factor due to Lorentz force
115 Float_t fTimeLastVdrift; // The structures are valid for fLastVdrift (caching)
116 Float_t *fTimeStruct1; //! Time Structure of Drift Cells
117 Float_t *fTimeStruct2; //! Time Structure of Drift Cells
118 Float_t fVDlo; // Lower drift velocity, for interpolation
119 Float_t fVDhi; // Higher drift velocity, for interpolation
121 ClassDef(AliTRDdigitizer,16) // Produces TRD-Digits