1 #ifndef ALIITSSIMULATIONSDD_H
2 #define ALIITSSIMULATIONSDD_H
3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
9 ////////////////////////////////////////////////////////////
10 // Simulation class for SDD //
11 ////////////////////////////////////////////////////////////
14 #include "AliITSsimulation.h"
15 #include "AliITSsegmentationSDD.h"
26 class AliITSCalibration;
27 class AliITSCalibrationSDD;
29 class AliITSsimulationSDD : public AliITSsimulation {
31 AliITSsimulationSDD(); // default constructor
32 //Standard Constructor
33 AliITSsimulationSDD(AliITSDetTypeSim* dettyp);
35 AliITSsimulationSDD(const AliITSsimulationSDD &source);
36 virtual ~AliITSsimulationSDD(); // Destructor
38 AliITSsimulationSDD& operator=(const AliITSsimulationSDD &source);
39 // virtual AliITSsimulation& operator=(const AliITSsimulation &source);
40 // Initilize variables for this simulation
43 // Get a pointer to the segmentation object
44 virtual AliITSsegmentation* GetSegmentationModel(Int_t /*dt*/){return fDetType->GetSegmentationModel(1);}
45 // set pointer to segmentation object
46 virtual void SetSegmentationModel(Int_t /*dt*/, AliITSsegmentation *seg){fDetType->SetSegmentationModel(1,seg);}
48 static Int_t ScaleFourier(const AliITSsegmentationSDD* seg)
49 {if(seg->Npx()==128) {return 8;} else {return 4;}} // returns the scale factor
50 // set perpendicular tracks flag
51 virtual void SetPerpendTracksFlag(Bool_t flag=kFALSE) {fFlag=flag;}
52 // returns perpendicular track flag.
53 Bool_t PerpendTracksFlag() const {return fFlag;}
55 virtual void SetCrosstalkFlag(Bool_t flag=kFALSE) {fCrosstalkFlag=flag;}
56 // return crosstalk flag
57 Bool_t CrosstalkFlag() const {return fCrosstalkFlag;}
58 void FastFourierTransform(Double_t *real, Double_t *imag, Int_t direction);
59 virtual Int_t Convert10to8(Int_t signal) const;//10 to 8 bit SDD compresion
60 virtual Int_t Convert8to10(Int_t signal) const;//8 to 10 bit decompresion
61 virtual void Compress2D(); // Applies 2D compresion algorithm
62 virtual void StoreAllDigits(); // if No compresion run this.
63 // returns baseline and noise for a given anode i.
64 //virtual void GetAnodeBaseline(Int_t i,Double_t &baseline,Double_t &noise) const;
65 // local implementation of ITS->AddDigit. Specific for SDD
66 virtual void AddDigit(Int_t i, Int_t j, Int_t signalc, Int_t signale);
68 // add baseline, noise, gain, electronics and ADC saturation effects
69 void ChargeToSignal(Int_t mod,Bool_t bAddNoise=kFALSE, Bool_t bAddGain=kTRUE);
70 // add crosstalk effect
71 void ApplyCrosstalk(Int_t mod);
73 // create maps to build the lists of tracks for each summable digit
74 void InitSimulationModule( Int_t module, Int_t event );
77 // Summable Digitses a SDD module
78 void SDigitiseModule(AliITSmodule *mod,Int_t md,Int_t ev);
79 // Add Summable digits to module maps.
80 Bool_t AddSDigitsToModule( TClonesArray *pItemArray, Int_t mask );
81 // digitize module from the sum of summable digits.
82 void FinishSDigitiseModule();
83 // Writes summable digits
85 // Introduces electronics effects and does zero-suppresion if required
87 // Digitses a SDD module
88 void DigitiseModule(AliITSmodule *mod,Int_t md,Int_t ev);
89 // Spread charge in a SDD module
90 void HitsToAnalogDigits(AliITSmodule *mod);
91 // Sorts tracks for the 3 most highly contributed one to be added to digit.
92 //void SortTracks(Int_t *tracks,Float_t *charges,Int_t *hits
94 // collects and returns the fired SDD cells (uses AliITSMapA2...).
95 //void ListOfFiredCells(Int_t *arg,Double_t timeAmplitude,TObjArray *list,
96 // TClonesArray *padr);
98 // Creates histograms of maps for debugging
99 void CreateHistograms(Int_t scale);
100 // Fills histograms of maps for debugging
101 void FillHistograms();
102 // Resets histograms of maps for debugging
103 void ResetHistograms();
104 // Get the pointer to the array of histograms
105 TObjArray* GetHistArray() {return fHis;}
106 void WriteToFile(TFile *fp);// Writes the histograms to a file
107 // Get's histogram of a particular anode.
108 TH1F *GetAnode(Int_t wing, Int_t anode);
111 void SetDoFFT(Int_t doFFT=1) {fDoFFT=doFFT;}
113 // Print SSD simulation Parameters
114 virtual void PrintStatus() const;
117 // virtual void GetBaseline(Int_t mod); // read baseline values from a file
118 // Variables and pointers for local use only. Not Streamed out.
119 AliITS *fITS; //! local pointer to ITS
120 AliITSMapA2 *fHitMap2; //! local pointer to map of signals
121 AliITSMapA2 *fHitSigMap2; //! local pointer to map of signals
122 AliITSMapA2 *fHitNoiMap2; //! local pointer to map of signals
123 AliITSetfSDD *fElectronics; //! local pointer to electronics simulation
124 Double_t *fInZR; //! [fScaleSize*fMaxNofSamples] input of the
126 Double_t *fInZI; //! [fScaleSize*fMaxNofSamples]
127 // input of the imaginary part of FFT
128 Double_t *fOutZR; //! [fScaleSize*fMaxNofSamples]
129 // output of the real part of FFT
130 Double_t *fOutZI; //! [fScaleSize*fMaxNofSamples]
131 // output of the imaginary part of FFT
132 Bool_t *fAnodeFire; //! [#of anodes] Flag if there is a signal
134 TObjArray *fHis; // just in case for histogramming
135 Bool_t fFlag; // Flag used to simulate perpendicular tracks
136 Bool_t fCrosstalkFlag; // Flag used to apply the crosstalk effect
137 Int_t fDoFFT; // Flag used to switch off electronics when 0
138 Int_t fNofMaps; // Number of anodes used ( 1-2*nanodes per wing )
139 Int_t fMaxNofSamples;// Number of time samples
140 Int_t fScaleSize; // scale size factor for the samples in FFT
142 ClassDef(AliITSsimulationSDD,3) // Simulation of SDD clusters