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