#ifndef ALIITSSIMULATIONSPD_H
#define ALIITSSIMULATIONSPD_H
+/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+ * See cxx source for full Copyright notice */
+/*
+$Id$
+*/
+#include "AliITSresponseSPD.h"
+#include "AliITSsegmentationSPD.h"
#include "AliITSsimulation.h"
class AliITSMapA2;
-class AliITSsegmentation;
-class AliITSresponse;
+class AliITSpList;
class AliITSmodule;
//-------------------------------------------------------------------
class AliITSsimulationSPD : public AliITSsimulation {
-public:
-
- AliITSsimulationSPD();
- AliITSsimulationSPD(AliITSsegmentation *seg, AliITSresponse *res);
- ~AliITSsimulationSPD();
- AliITSsimulationSPD(const AliITSsimulationSPD &source); // copy constructor
- AliITSsimulationSPD& operator=(const AliITSsimulationSPD &source); // ass. operator
-
- void DigitiseModule(AliITSmodule *mod,Int_t module,Int_t dummy);
- void ChargeToSignal(Float_t **pList);
- void GetList(Int_t track, Int_t hit, Float_t **pList, Int_t *IndexRange);
-
- void CreateHistograms();
- void ResetHistograms();
- TObjArray* GetHistArray() {
+ public:
+ AliITSsimulationSPD(); // Default constructor
+ // Standard constructor
+ AliITSsimulationSPD(AliITSsegmentation *seg, AliITSresponse *res);
+ ~AliITSsimulationSPD();// destructor
+ AliITSsimulationSPD(const AliITSsimulationSPD &source); // copy constructo
+ // assignment operator
+ AliITSsimulationSPD& operator=(const AliITSsimulationSPD &source);
+ // Initilizes the variables
+ void Init(AliITSsegmentationSPD *seg, AliITSresponseSPD *resp);
+
+ // Sum digitize module
+ // Create maps to build the lists of tracks for each summable digit
+ void InitSimulationModule(Int_t module,Int_t events);
+ // Digitize module from the sum of summable digits.
+ void FinishSDigitiseModule();
+ void SDigitiseModule(AliITSmodule *mod, Int_t dummy0,Int_t dummy1);
+ // digitize module. Also need to digitize modules with only noise.
+ void DigitiseModule(AliITSmodule *mod,Int_t dummy0, Int_t dummy1);
+ // sum digits to Digits.
+ void SDigitsToDigits(Int_t module,AliITSpList *pList);
+ // updates the Map of signal, adding the energy (ene) released by
+ // the current track
+ void UpdateMapSignal(Int_t row,Int_t col,Int_t trk,Int_t hit,Int_t mod,
+ Double_t ene,AliITSpList *pList);
+ // updates the Map of noise, adding the energy (ene) give my noise
+ void UpdateMapNoise(Int_t row,Int_t col,Int_t mod,Double_t ene,
+ AliITSpList *pList);
+ // Loops over all hits to produce Analog/floting point digits. This
+ // is also the first task in producing standard digits.
+ void HitsToAnalogDigits(AliITSmodule *mod,Int_t *frowpixel,
+ Int_t *fcolpixel,Double_t *fenepixel,
+ AliITSpList *pList);
+ // Steering function to determine the digits associated to a given
+ // hit (hitpos)
+ // The digits are created by charge sharing (ChargeSharing) and by
+ // capacitive coupling (SetCoupling). At all the created digits is
+ // associated the track number of the hit (ntrack)
+ void HitToDigit(AliITSmodule *mod, Int_t hitpos,Int_t *frowpixel,
+ Int_t *fcolpixel, Double_t *fenepixel,AliITSpList *pList);
+ // Take into account the geometrical charge sharing when the track
+ // crosses more than one pixel.
+ void ChargeSharing(Float_t x1l,Float_t z1l,Float_t x2l,Float_t z2l,
+ Int_t c1,Int_t r1,Int_t c2,Int_t r2,Float_t etot,
+ Int_t &npixel,Int_t *frowpixel,Int_t *fcolpixel,
+ Double_t *fenepixel);
+ // Take into account the coupling between adiacent pixels.
+ // The parameters probcol and probrow are the fractions of the
+ // signal in one pixel shared in the two adjacent pixels along
+ // the column and row direction, respectively.
+ void SetCoupling(Int_t row,Int_t col,Int_t ntrack,Int_t idhit,Int_t module,
+ AliITSpList *pList);
+ // The pixels are fired if the energy deposited inside them is above
+ // the threshold parameter ethr. Fired pixed are interpreted as digits
+ // and stored in the file digitfilename. One also needs to write out
+ // cases when there is only noise (nhits==0).
+ void CreateDigit(Int_t module,AliITSpList *pList);
+ // Set the electronic noise and threshold non-uniformities to all the
+ // pixels in a detector.
+ // The parameter fSigma is the squared sum of the sigma due to noise
+ // and the sigma of the threshold distribution among pixels.
+ void SetFluctuations(AliITSpList *pList,Int_t module);
+ // Apply a mask to the SPD module. 1% of the pixel channels are
+ // masked. When the database will be ready, the masked pixels
+ // should be read from it.
+ void SetMask();
+ // Create Histograms
+ void CreateHistograms();
+ // Reset histograms for this detector
+ void ResetHistograms();
+ // Fills the Summable digits Tree
+ void WriteSDigits(AliITSpList *pList);
+ // Fills fMap2A from the pList of Summable digits
+ void FillMapFrompList(AliITSpList *pList);
// get hist array
- return fHis;
- }
+ TObjArray* GetHistArray() {return fHis;}
-private:
+ private:
+ // Getters for data kept in fSegmentation and fResponse.
+ // Returns the Threshold in electrons
+ Double_t GetThreshold(){Float_t a=0.0,b=0.0;
+ ((AliITSresponseSPD*)fResponse)->Thresholds(a,b); return a;}
+ // Returns the threshold and rms noise.
+ void GetThresholds(Float_t &t,Float_t &s){
+ ((AliITSresponseSPD*)fResponse)->Thresholds(t,s);}
+ // Returns the couplings Columb and Row.
+ void GetCouplings(Float_t &cc,Float_t cr){
+ ((AliITSresponseSPD*)fResponse)->GetNoiseParam(cc,cr);}
+ // Returns the number of pixels in x
+ Int_t GetNPixelsX(){return ((AliITSsegmentationSPD*)fSegmentation)->Npx();}
+ // Returns the number of pixels in z
+ Int_t GetNPixelsZ(){return ((AliITSsegmentationSPD*)fSegmentation)->Npz();}
- AliITSMapA2 *fMapA2; // MapA2
- Float_t fNoise; // Noise
- Float_t fBaseline; // Baseline
- Int_t fNPixelsX; // NPixelsX
- Int_t fNPixelsZ; // NPixelsZ
+ private:
+/* Float_t fThresh; //! Threshold from fResponse
+ Float_t fSigma; //! Noise from fResponse
+ Float_t fCouplCol; //! Coupling along columns from fResponse
+ Float_t fCouplRow; //! Coupling along rows from fResponse
+ Int_t fNPixelsX; //! NPixelsX from fSegmentation
+ Int_t fNPixelsZ; //! NPixelsZ from fSegmentation
+*/
+// AliITSpList *fList; //! Internal map and sdigits
+// Int_t fModule; //! Module number being simulated
+// Int_t fEvent; //! Event number being simulated
+ AliITSMapA2 *fMapA2; //! MapA2 for Local internal use only
+ TObjArray *fHis; //! just in case for histogramming for Local
+ // internal use only
- TObjArray *fHis; // just in case for histogramming
-
- ClassDef(AliITSsimulationSPD,1) // Simulation of SPD clusters
+ ClassDef(AliITSsimulationSPD,1) // Simulation of SPD clusters
};
-#endif
-
-
-
+#endif
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff