-#include <iostream.h>
+/**************************************************************************
+ * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+ * *
+ * Author: The ALICE Off-line Project. *
+ * Contributors are mentioned in the code where appropriate. *
+ * *
+ * Permission to use, copy, modify and distribute this software and its *
+ * documentation strictly for non-commercial purposes is hereby granted *
+ * without fee, provided that the above copyright notice appears in all *
+ * copies and that both the copyright notice and this permission notice *
+ * appear in the supporting documentation. The authors make no claims *
+ * about the suitability of this software for any purpose. It is *
+ * provided "as is" without express or implied warranty. *
+ **************************************************************************/
+
+/* $Id$ */
+
+#include <Riostream.h>
#include <TRandom.h>
#include <TH1.h>
#include <TMath.h>
#include <TString.h>
#include <TParticle.h>
-
#include "AliRun.h"
#include "AliITS.h"
#include "AliITShit.h"
-#include "AliITSdigit.h"
+#include "AliITSdigitSPD.h"
#include "AliITSmodule.h"
-#include "AliITSMapA2.h"
+#include "AliITSMapA2.h"
+#include "AliITSpList.h"
#include "AliITSsimulationSPD.h"
#include "AliITSsegmentation.h"
#include "AliITSresponse.h"
+#include "AliITSsegmentationSPD.h"
+#include "AliITSresponseSPD.h"
-
-
+//#define DEBUG
ClassImp(AliITSsimulationSPD)
////////////////////////////////////////////////////////////////////////
// Version: 0
-// Written by Boris Batyunya
-// December 20 1999
+// Written by Rocco Caliandro
+// from a model developed with T. Virgili and R.A. Fini
+// June 15 2000
//
// AliITSsimulationSPD is the simulation of SPDs
-//________________________________________________________________________
-
-
-AliITSsimulationSPD::AliITSsimulationSPD()
-{
- // constructor
- fResponse = 0;
- fSegmentation = 0;
- fMapA2=0;
- fHis = 0;
- fNoise=0.;
- fBaseline=0.;
- fNPixelsZ=0;
- fNPixelsX=0;
+//
+//______________________________________________________________________
+AliITSsimulationSPD::AliITSsimulationSPD() : AliITSsimulation(),
+fMapA2(0),
+fHis(0){
+ // Default constructor
+ // Inputs:
+ // none.
+ // Outputs:
+ // none.
+ // Return:
+ // A default constructed AliITSsimulationSPD class.
}
-
-
-//_____________________________________________________________________________
-
-AliITSsimulationSPD::AliITSsimulationSPD(AliITSsegmentation *seg, AliITSresponse *resp) {
- // standard constructor
-
- fHis = 0;
- fResponse = resp;
- fSegmentation = seg;
-
- fResponse->GetNoiseParam(fNoise,fBaseline);
-
- fMapA2 = new AliITSMapA2(fSegmentation);
-
- //
-
- fNPixelsZ=fSegmentation->Npz();
- fNPixelsX=fSegmentation->Npx();
-
+//______________________________________________________________________
+AliITSsimulationSPD::AliITSsimulationSPD(AliITSsegmentation *seg,
+ AliITSresponse *res):
+AliITSsimulation(seg,res),
+fMapA2(0),
+fHis(0){
+ // Standard constructor
+ // Inputs:
+ // AliITSsegmentation *seg Segmentation class to be used
+ // AliITSresonse *res Response class to be used
+ // Outputs:
+ // none.
+ // Return:
+ // A standard constructed AliITSsimulationSPD class.
+
+ Init();
}
-
-//_____________________________________________________________________________
-
+//______________________________________________________________________
+void AliITSsimulationSPD::Init() {
+ // Initilizes the variables of AliITSsimulation SPD.
+ // Inputs:
+ // none.
+ // Outputs:
+ // none.
+ // Return:
+ // none.
+
+ fHis = 0;
+ if(fMapA2) delete fMapA2;
+ fMapA2 = new AliITSMapA2(fSegmentation);
+ if(fpList) delete fpList;
+ fpList = new AliITSpList(GetNPixelsZ()+1,GetNPixelsX()+1);
+}
+//______________________________________________________________________
+void AliITSsimulationSPD::Init(AliITSsegmentationSPD *seg,
+ AliITSresponseSPD *resp) {
+ // Initilizes the variables of AliITSsimulation SPD.
+ // Inputs:
+ // AliITSsegmentationSPD replacement segmentation class to be used
+ // aliITSresponseSPD replacement response class to be used
+ // Outputs:
+ // none.
+ // Return:
+ // none.
+
+ if(fHis){
+ fHis->Delete();
+ delete fHis;
+ } // end if fHis
+ fHis = 0;
+ if(fResponse) delete fResponse;
+ fResponse = resp;
+ if(fSegmentation) delete fSegmentation;
+ fSegmentation = seg;
+ if(fMapA2) delete fMapA2;
+ fMapA2 = new AliITSMapA2(fSegmentation);
+ if(fpList) delete fpList;
+ fpList = new AliITSpList(GetNPixelsZ()+1,GetNPixelsX()+1);
+}
+//______________________________________________________________________
AliITSsimulationSPD::~AliITSsimulationSPD() {
- // destructor
-
- delete fMapA2;
-
- if (fHis) {
- fHis->Delete();
- delete fHis;
- }
+ // destructor
+ // Inputs:
+ // none.
+ // Outputs:
+ // none.
+ // Return:
+ // none.
+
+ if(fMapA2) delete fMapA2;
+
+ if (fHis) {
+ fHis->Delete();
+ delete fHis;
+ } // end if
}
-
-
-//__________________________________________________________________________
-AliITSsimulationSPD::AliITSsimulationSPD(const AliITSsimulationSPD &source){
- // Copy Constructor
- if(&source == this) return;
- this->fMapA2 = source.fMapA2;
- this->fNoise = source.fNoise;
- this->fBaseline = source.fBaseline;
- this->fNPixelsX = source.fNPixelsX;
- this->fNPixelsZ = source.fNPixelsZ;
- this->fHis = source.fHis;
- return;
+//______________________________________________________________________
+AliITSsimulationSPD::AliITSsimulationSPD(const AliITSsimulationSPD &source) :
+ AliITSsimulation(source){
+ // Copy Constructor
+ // Inputs:
+ // none.
+ // Outputs:
+ // none.
+ // Return:
+ // A new AliITSsimulationSPD class with the same parameters as source.
+
+ if(&source == this) return;
+
+ this->fMapA2 = source.fMapA2;
+ this->fHis = source.fHis;
+ return;
}
-
-//_________________________________________________________________________
-AliITSsimulationSPD&
- AliITSsimulationSPD::operator=(const AliITSsimulationSPD &source) {
- // Assignment operator
- if(&source == this) return *this;
- this->fMapA2 = source.fMapA2;
- this->fNoise = source.fNoise;
- this->fBaseline = source.fBaseline;
- this->fNPixelsX = source.fNPixelsX;
- this->fNPixelsZ = source.fNPixelsZ;
- this->fHis = source.fHis;
- return *this;
- }
-//_____________________________________________________________________________
-
-void AliITSsimulationSPD::DigitiseModule(AliITSmodule *mod, Int_t module, Int_t dummy)
-{
- // digitize module
-
- const Float_t kEnToEl = 2.778e+8; // GeV->charge in electrons
- // for 3.6 eV/pair
- const Float_t kconv = 10000.; // cm -> microns
-
- Float_t spdLength = fSegmentation->Dz();
- Float_t spdWidth = fSegmentation->Dx();
-
- Float_t difCoef, dum;
- fResponse->DiffCoeff(difCoef,dum);
-
- Float_t zPix0 = 1e+6;
- Float_t xPix0 = 1e+6;
- Float_t yPrev = 1e+6;
-
- Float_t zPitch = fSegmentation->Dpz(0);
- Float_t xPitch = fSegmentation->Dpx(0);
-
- TObjArray *fHits = mod->GetHits();
- Int_t nhits = fHits->GetEntriesFast();
- if (!nhits) return;
-
- // Array of pointers to the label-signal list
-
- Int_t maxNDigits = fNPixelsX*fNPixelsZ + fNPixelsX ;;
- Float_t **pList = new Float_t* [maxNDigits];
- memset(pList,0,sizeof(Float_t*)*maxNDigits);
- Int_t indexRange[4] = {0,0,0,0};
-
- // Fill detector maps with GEANT hits
- // loop over hits in the module
- static Bool_t first;
- Int_t lasttrack=-2;
- Int_t hit, iZi, jz, jx;
- for (hit=0;hit<nhits;hit++) {
- AliITShit *iHit = (AliITShit*) fHits->At(hit);
- Int_t layer = iHit->GetLayer();
- Float_t yPix0 = -73;
- if(layer == 1) yPix0 = -77;
-
- // work with the idtrack=entry number in the TreeH
- Int_t idhit,idtrack;
- mod->GetHitTrackAndHitIndex(hit,idtrack,idhit);
- //Int_t idtrack=mod->GetHitTrackIndex(hit);
- // or store straight away the particle position in the array
- // of particles :
-
- //b.b. if(iHit->StatusEntering()) idhit=hit;
- Int_t itrack = iHit->GetTrack();
- Int_t dray = 0;
-
- if (lasttrack != itrack || hit==(nhits-1)) first = kTRUE;
-
- // Int_t parent = iHit->GetParticle()->GetFirstMother();
- Int_t partcode = iHit->GetParticle()->GetPdgCode();
-
-// partcode (pdgCode): 11 - e-, 13 - mu-, 22 - gamma, 111 - pi0, 211 - pi+
-// 310 - K0s, 321 - K+, 2112 - n, 2212 - p, 3122 - lambda
-
- Float_t px = iHit->GetPXL();
- Float_t py = iHit->GetPYL();
- Float_t pz = iHit->GetPZL();
- Float_t pmod = 1000*sqrt(px*px+py*py+pz*pz);
-
-
- if(partcode == 11 && pmod < 6) dray = 1; // delta ray is e-
- // at p < 6 MeV/c
-
-
- // Get hit z and x(r*phi) cordinates for each module (detector)
- // in local system.
-
- Float_t zPix = kconv*iHit->GetZL();
- Float_t xPix = kconv*iHit->GetXL();
- Float_t yPix = kconv*iHit->GetYL();
-
- // Get track status
- Int_t status = iHit->GetTrackStatus();
-
- // Check boundaries
- if(zPix > spdLength/2) zPix = spdLength/2 - 10;
- if(zPix < 0 && zPix < -spdLength/2) zPix = -spdLength/2 + 10;
- if(xPix > spdWidth/2) xPix = spdWidth/2 - 10;
- if(xPix < 0 && xPix < -spdWidth/2) zPix = -spdWidth/2 + 10;
-
- Int_t trdown = 0;
-
- // enter Si or after event in Si
- if (status == 66 ) {
- zPix0 = zPix;
- xPix0 = xPix;
- yPrev = yPix;
- }
-
- Float_t depEnergy = iHit->GetIonization();
- // skip if the input point to Si
-
- if(depEnergy <= 0.) continue;
-
- // if track returns to the opposite direction:
- if (yPix < yPrev) {
- trdown = 1;
- }
-
-
- // take into account the holes diffusion inside the Silicon
- // the straight line between the entrance and exit points in Si is
- // divided into the several steps; the diffusion is considered
- // for each end point of step and charge
- // is distributed between the pixels through the diffusion.
-
-
- // ---------- the diffusion in Z (beam) direction -------
-
- Float_t charge = depEnergy*kEnToEl; // charge in e-
- Float_t drPath = 0.;
- Float_t tang = 0.;
- Float_t sigmaDif = 0.;
- Float_t zdif = zPix - zPix0;
- Float_t xdif = xPix - xPix0;
- Float_t ydif = TMath::Abs(yPix - yPrev);
- Float_t ydif0 = TMath::Abs(yPrev - yPix0);
-
- if(ydif < 1) continue; // ydif is not zero
-
- Float_t projDif = sqrt(xdif*xdif + zdif*zdif);
- Int_t ndZ = (Int_t)TMath::Abs(zdif/zPitch) + 1;
- Int_t ndX = (Int_t)TMath::Abs(xdif/xPitch) + 1;
-
- // number of the steps along the track:
- Int_t nsteps = ndZ;
- if(ndX > ndZ) nsteps = ndX;
- if(nsteps < 6) nsteps = 6; // minimum number of the steps
-
- if (projDif < 5 ) {
- drPath = (yPix-yPix0)*1.e-4;
- drPath = TMath::Abs(drPath); // drift path in cm
- sigmaDif = difCoef*sqrt(drPath); // sigma diffusion in cm
- sigmaDif = sigmaDif*kconv; // sigma diffusion in microns
- nsteps = 1;
- }
-
- if(projDif > 5) tang = ydif/projDif;
- Float_t dCharge = charge/nsteps; // charge in e- for one step
- Float_t dZ = zdif/nsteps;
- Float_t dX = xdif/nsteps;
-
- for (iZi = 1;iZi <= nsteps;iZi++) {
- Float_t dZn = iZi*dZ;
- Float_t dXn = iZi*dX;
- Float_t zPixn = zPix0 + dZn;
- Float_t xPixn = xPix0 + dXn;
-
- if(projDif >= 5) {
- Float_t dProjn = sqrt(dZn*dZn+dXn*dXn);
- drPath = dProjn*tang*1.e-4; // drift path for iZi step in cm
- if(trdown == 0) {
- drPath = TMath::Abs(drPath) + ydif0*1.e-4;
- }
- if(trdown == 1) {
- drPath = ydif0*1.e-4 - TMath::Abs(drPath);
- drPath = TMath::Abs(drPath);
- }
- sigmaDif = difCoef*sqrt(drPath);
- sigmaDif = sigmaDif*kconv; // sigma diffusion in microns
- }
-
- zPixn = (zPixn + spdLength/2.);
- xPixn = (xPixn + spdWidth/2.);
- Int_t nZpix, nXpix;
- fSegmentation->GetPadIxz(xPixn,zPixn,nXpix,nZpix);
- zPitch = fSegmentation->Dpz(nZpix);
- fSegmentation->GetPadTxz(xPixn,zPixn);
- // set the window for the integration
- Int_t jzmin = 1;
- Int_t jzmax = 3;
- if(nZpix == 1) jzmin =2;
- if(nZpix == fNPixelsZ) jzmax = 2;
-
- Int_t jxmin = 1;
- Int_t jxmax = 3;
- if(nXpix == 1) jxmin =2;
- if(nXpix == fNPixelsX) jxmax = 2;
-
- Float_t zpix = nZpix;
- Float_t dZright = zPitch*(zpix - zPixn);
- Float_t dZleft = zPitch - dZright;
-
- Float_t xpix = nXpix;
- Float_t dXright = xPitch*(xpix - xPixn);
- Float_t dXleft = xPitch - dXright;
-
- Float_t dZprev = 0.;
- Float_t dZnext = 0.;
- Float_t dXprev = 0.;
- Float_t dXnext = 0.;
-
- for(jz=jzmin; jz <=jzmax; jz++) {
- if(jz == 1) {
- dZprev = -zPitch - dZleft;
- dZnext = -dZleft;
- }
- if(jz == 2) {
- dZprev = -dZleft;
- dZnext = dZright;
- }
- if(jz == 3) {
- dZprev = dZright;
- dZnext = dZright + zPitch;
- }
- // kz changes from 1 to the fNofPixels(270)
- Int_t kz = nZpix + jz -2;
-
- Float_t zArg1 = dZprev/sigmaDif;
- Float_t zArg2 = dZnext/sigmaDif;
- Float_t zProb1 = TMath::Erfc(zArg1);
- Float_t zProb2 = TMath::Erfc(zArg2);
- Float_t dZCharge =0.5*(zProb1-zProb2)*dCharge;
-
-
- // ----------- holes diffusion in X(r*phi) direction --------
-
- if(dZCharge > 1.) {
- for(jx=jxmin; jx <=jxmax; jx++) {
- if(jx == 1) {
- dXprev = -xPitch - dXleft;
- dXnext = -dXleft;
- }
- if(jx == 2) {
- dXprev = -dXleft;
- dXnext = dXright;
- }
- if(jx == 3) {
- dXprev = dXright;
- dXnext = dXright + xPitch;
- }
- Int_t kx = nXpix + jx -2;
-
- Float_t xArg1 = dXprev/sigmaDif;
- Float_t xArg2 = dXnext/sigmaDif;
- Float_t xProb1 = TMath::Erfc(xArg1);
- Float_t xProb2 = TMath::Erfc(xArg2);
- Float_t dXCharge =0.5*(xProb1-xProb2)*dZCharge;
-
- if(dXCharge > 1.) {
- Int_t index = kz-1;
-
- if (first) {
- indexRange[0]=indexRange[1]=index;
- indexRange[2]=indexRange[3]=kx-1;
- first=kFALSE;
- }
-
- indexRange[0]=TMath::Min(indexRange[0],kz-1);
- indexRange[1]=TMath::Max(indexRange[1],kz-1);
- indexRange[2]=TMath::Min(indexRange[2],kx-1);
- indexRange[3]=TMath::Max(indexRange[3],kx-1);
-
- // build the list of digits for this module
- Double_t signal=fMapA2->GetSignal(index,kx-1);
- signal+=dXCharge;
- fMapA2->SetHit(index,kx-1,(double)signal);
- } // dXCharge > 1 e-
- } // jx loop
- } // dZCharge > 1 e-
- } // jz loop
- } // iZi loop
-
- if (status == 65) { // the step is inside of Si
- zPix0 = zPix;
- xPix0 = xPix;
- }
- yPrev = yPix;
-
- if(dray == 0) {
- GetList(itrack,idhit,pList,indexRange);
- }
-
- lasttrack=itrack;
- } // hit loop inside the module
-
-
- // introduce the electronics effects and do zero-suppression
- ChargeToSignal(pList);
+//______________________________________________________________________
+AliITSsimulationSPD& AliITSsimulationSPD::operator=(const AliITSsimulationSPD
+ &source) {
+ // Assignment operator
+ // Inputs:
+ // none.
+ // Outputs:
+ // none.
+ // Return:
+ // A new AliITSsimulationSPD class with the same parameters as source.
+
+ if(&source == this) return *this;
+
+ this->fMapA2 = source.fMapA2;
+ this->fHis = source.fHis;
+ return *this;
+}
+//______________________________________________________________________
+void AliITSsimulationSPD::InitSimulationModule(Int_t module,Int_t event){
+ // Creates maps to build the list of tracks for each sumable digit
+ // Inputs:
+ // Int_t module // Module number to be simulated
+ // Int_t event // Event number to be simulated
+ // Outputs:
+ // none.
+ // Return
+ // none.
+
+ fModule = module;
+ fEvent = event;
+ fMapA2->ClearMap();
+ fpList->ClearMap();
+}
+//______________________________________________________________________
+void AliITSsimulationSPD::FinishSDigitiseModule(){
+ // Does the Sdigits to Digits work
+ // Inputs:
+ // none.
+ // Outputs:
+ // none.
+ // Return:
+ // none.
+
+ SDigitsToDigits(fModule,fpList);
+}
+//______________________________________________________________________
+void AliITSsimulationSPD::SDigitiseModule(AliITSmodule *mod, Int_t dummy0,
+ Int_t dummy1) {
+ // Sum digitize module
+ // Inputs:
+ // AliITSmodule *mod The module to be SDgitized
+ // Int_t dummy0 Not used kept for general compatibility
+ // Int_t dummy1 Not used kept for general compatibility
+ // Outputs:
+ // none.
+ // Return:
+ // none.
+ if (!(mod->GetNhits())) return; // if module has no hits then no Sdigits.
+ Int_t number = 10000;
+ Int_t *frowpixel = new Int_t[number];
+ Int_t *fcolpixel = new Int_t[number];
+ Double_t *fenepixel = new Double_t[number];
+
+ dummy0 = dummy1; // remove unsued variable warning.
+ fModule = mod->GetIndex();
+
+ // Array of pointers to store the track index of the digits
+ // leave +1, otherwise pList crashes when col=256, row=192
+
+ HitsToAnalogDigits(mod,frowpixel,fcolpixel,fenepixel,fpList);
+
+ WriteSDigits(fpList);
// clean memory
-
+ delete[] frowpixel;
+ delete[] fcolpixel;
+ delete[] fenepixel;
fMapA2->ClearMap();
+ fpList->ClearMap();
+}
+//______________________________________________________________________
+void AliITSsimulationSPD::DigitiseModule(AliITSmodule *mod, Int_t,Int_t) {
+ // digitize module. Also need to digitize modules with only noise.
+ // Inputs:
+ // AliITSmodule *mod The module to be SDgitized
+ // Outputs:
+ // none.
+ // Return:
+ // none.
+
+ Int_t number = 10000;
+ Int_t *frowpixel = new Int_t[number];
+ Int_t *fcolpixel = new Int_t[number];
+ Double_t *fenepixel = new Double_t[number];
+
+ // Array of pointers to store the track index of the digits
+ // leave +1, otherwise pList crashes when col=256, row=192
+ fModule = mod->GetIndex();
+ // noise setting
+ SetFluctuations(fpList,fModule);
+
+ HitsToAnalogDigits(mod,frowpixel,fcolpixel,fenepixel,fpList);
+
+ // apply mask to SPD module
+ SetMask();
+
+ CreateDigit(fModule,fpList);
+ // clean memory
+ delete[] frowpixel;
+ delete[] fcolpixel;
+ delete[] fenepixel;
+ fMapA2->ClearMap();
+ fpList->ClearMap();
+}
+//______________________________________________________________________
+void AliITSsimulationSPD::SDigitsToDigits(Int_t module,AliITSpList *pList) {
+ // sum digits to Digits.
+ // Inputs:
+ // AliITSmodule *mod The module to be SDgitized
+ // AliITSpList *pList the array of SDigits
+ // Outputs:
+ // AliITSpList *pList the array of SDigits
+ // Return:
+ // none.
-}
-
-//---------------------------------------------
-void AliITSsimulationSPD::GetList(Int_t label,Int_t idhit,Float_t **pList,Int_t *indexRange)
-{
- // lop over nonzero digits
-
-
- //set protection
- for(int k=0;k<4;k++) {
- if (indexRange[k] < 0) indexRange[k]=0;
- }
-
- for(Int_t iz=indexRange[0];iz<indexRange[1]+1;iz++){
- for(Int_t ix=indexRange[2];ix<indexRange[3]+1;ix++){
-
- Float_t signal=fMapA2->GetSignal(iz,ix);
-
- if (!signal) continue;
-
- Int_t globalIndex = iz*fNPixelsX+ix; // GlobalIndex starts from 0!
- if(!pList[globalIndex]){
-
- //
- // Create new list (9 elements - 3 signals and 3 tracks + 3 hits)
- //
-
- pList[globalIndex] = new Float_t [9];
-
- // set list to -3
-
- *pList[globalIndex] = -3.;
- *(pList[globalIndex]+1) = -3.;
- *(pList[globalIndex]+2) = -3.;
- *(pList[globalIndex]+3) = 0.;
- *(pList[globalIndex]+4) = 0.;
- *(pList[globalIndex]+5) = 0.;
- *(pList[globalIndex]+6) = -1.;
- *(pList[globalIndex]+7) = -1.;
- *(pList[globalIndex]+8) = -1.;
-
-
- *pList[globalIndex] = (float)label;
- *(pList[globalIndex]+3) = signal;
- *(pList[globalIndex]+6) = (float)idhit;
- }
- else{
-
- // check the signal magnitude
-
- Float_t highest = *(pList[globalIndex]+3);
- Float_t middle = *(pList[globalIndex]+4);
- Float_t lowest = *(pList[globalIndex]+5);
-
- signal -= (highest+middle+lowest);
-
- //
- // compare the new signal with already existing list
- //
-
- if(signal<lowest) continue; // neglect this track
-
- if (signal>highest){
- *(pList[globalIndex]+5) = middle;
- *(pList[globalIndex]+4) = highest;
- *(pList[globalIndex]+3) = signal;
+ if(GetDebug()){
+ cout << "Entering AliITSsimulatinSPD::SDigitsToDigits for module=";
+ cout << module << endl;
+ } // end if GetDebug
+ fModule = module;
- *(pList[globalIndex]+2) = *(pList[globalIndex]+1);
- *(pList[globalIndex]+1) = *pList[globalIndex];
- *pList[globalIndex] = label;
+ // noise setting
+ SetFluctuations(pList,module);
- *(pList[globalIndex]+8) = *(pList[globalIndex]+7);
- *(pList[globalIndex]+7) = *(pList[globalIndex]+6);
- *(pList[globalIndex]+6) = idhit;
- }
- else if (signal>middle){
- *(pList[globalIndex]+5) = middle;
- *(pList[globalIndex]+4) = signal;
+ fMapA2->ClearMap(); // since noise is in pList aready. Zero Map so that
+ // noise is not doubled when calling FillMapFrompList.
- *(pList[globalIndex]+2) = *(pList[globalIndex]+1);
- *(pList[globalIndex]+1) = label;
+ FillMapFrompList(pList);
- *(pList[globalIndex]+8) = *(pList[globalIndex]+7);
- *(pList[globalIndex]+7) = idhit;
- }
- else{
- *(pList[globalIndex]+5) = signal;
- *(pList[globalIndex]+2) = label;
- *(pList[globalIndex]+8) = idhit;
- }
- }
- } // end of loop pixels in x
- } // end of loop over pixels in z
+ // apply mask to SPD module
+ SetMask();
+ CreateDigit(module,pList);
+ fMapA2->ClearMap();
+ pList->ClearMap();
}
-
-
-//---------------------------------------------
-void AliITSsimulationSPD::ChargeToSignal(Float_t **pList)
-{
- // add noise and electronics, perform the zero suppression and add the
- // digit to the list
-
- AliITS *aliITS = (AliITS*)gAlice->GetModule("ITS");
-
-
- TRandom *random = new TRandom();
- Float_t threshold = (float)fResponse->MinVal();
-
- Int_t digits[3], tracks[3], hits[3],gi,j1;
- Float_t charges[3];
- Float_t electronics;
- Float_t signal,phys;
- for(Int_t iz=0;iz<fNPixelsZ;iz++){
- for(Int_t ix=0;ix<fNPixelsX;ix++){
- electronics = fBaseline + fNoise*random->Gaus();
- signal = (float)fMapA2->GetSignal(iz,ix);
- signal += electronics;
- gi =iz*fNPixelsX+ix; // global index
- if (signal > threshold) {
- digits[0]=iz;
- digits[1]=ix;
- digits[2]=1;
- for(j1=0;j1<3;j1++){
- if (pList[gi]) {
- //b.b. tracks[j1]=-3;
- tracks[j1] = (Int_t)(*(pList[gi]+j1));
- hits[j1] = (Int_t)(*(pList[gi]+j1+6));
- }else {
- tracks[j1]=-2; //noise
- hits[j1] = -1;
- }
- charges[j1] = 0;
- }
-
- if(tracks[0] == tracks[1] && tracks[0] == tracks[2]) {
- tracks[1] = -3;
- hits[1] = -1;
- tracks[2] = -3;
- hits[2] = -1;
- }
- if(tracks[0] == tracks[1] && tracks[0] != tracks[2]) {
- tracks[1] = -3;
- hits[1] = -1;
- }
- if(tracks[0] == tracks[2] && tracks[0] != tracks[1]) {
- tracks[2] = -3;
- hits[2] = -1;
- }
- if(tracks[1] == tracks[2] && tracks[0] != tracks[1]) {
- tracks[2] = -3;
- hits[2] = -1;
- }
-
- phys=0;
- aliITS->AddSimDigit(0,phys,digits,tracks,hits,charges);
- }
- if(pList[gi]) delete [] pList[gi];
- }
- }
- delete [] pList;
-
+//______________________________________________________________________
+void AliITSsimulationSPD::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 signal, adding the energy (ene) released by
+ // the current track
+ // Inputs:
+ // Int_t row pixel row number
+ // Int_t col pixel column number
+ // Int_t trk track number which contributed
+ // Int_t hit hit number which contributed
+ // Int_t mod module number
+ // Double_t ene the energy associated with this contribution
+ // AliITSpList *pList the array of SDigits
+ // Outputs:
+ // AliITSpList *pList the array of SDigits
+ // Return:
+ // none.
+
+ fMapA2->AddSignal(row,col,ene);
+ pList->AddSignal(row,col,trk,hit,mod,ene);
}
-
-
-//____________________________________________
-
-void AliITSsimulationSPD::CreateHistograms()
-{
- // create 1D histograms for tests
-
- printf("SPD - create histograms\n");
-
- fHis=new TObjArray(fNPixelsZ);
- TString spdName("spd_");
- for (Int_t i=0;i<fNPixelsZ;i++) {
- Char_t pixelz[4];
- sprintf(pixelz,"%d",i+1);
- spdName.Append(pixelz);
- (*fHis)[i] = new TH1F(spdName.Data(),"SPD maps",
- fNPixelsX,0.,(Float_t) fNPixelsX);
- }
+//______________________________________________________________________
+void AliITSsimulationSPD::UpdateMapNoise(Int_t row,Int_t col,Int_t mod,
+ Double_t ene,AliITSpList *pList) {
+ // updates the Map of noise, adding the energy (ene) give my noise
+ // Inputs:
+ // Int_t row pixel row number
+ // Int_t col pixel column number
+ // Int_t mod module number
+ // Double_t ene the energy associated with this contribution
+ // AliITSpList *pList the array of SDigits
+ // Outputs:
+ // AliITSpList *pList the array of SDigits
+ // Return:
+ // none.
+
+ fMapA2->AddSignal(row,col,ene);
+ pList->AddNoise(row,col,mod,ene);
}
-
-//____________________________________________
-
-void AliITSsimulationSPD::ResetHistograms()
-{
+//______________________________________________________________________
+void AliITSsimulationSPD::HitsToAnalogDigits(AliITSmodule *mod,
+ Int_t *frowpixel,Int_t *fcolpixel,
+ Double_t *fenepixel,
+ AliITSpList *pList) {
+ // Loops over all hits to produce Analog/floting point digits. This
+ // is also the first task in producing standard digits.
+ // Inputs:
+ // AliITSmodule *mod module class
+ // Int_t *frowpixel array of pixel rows
+ // Int_t *fcolpixel array of pixel columns
+ // Double_t *fenepiexel array of pixel energies
+ // AliITSpList *pList the array of SDigits
+ // Outputs:
+ // AliITSpList *pList the array of SDigits
+ // Return:
+ // none.
+
+ // loop over hits in the module
+ Int_t hitpos,nhits = mod->GetNhits();
+ for (hitpos=0;hitpos<nhits;hitpos++) {
+ HitToDigit(mod,hitpos,frowpixel,fcolpixel,fenepixel,pList);
+ }// end loop over digits
+}
+//______________________________________________________________________
+void AliITSsimulationSPD::HitToDigit(AliITSmodule *mod,Int_t hitpos,
+ 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)
+ // Inputs:
+ // AliITSmodule *mod module class
+ // Int_t hitpos hit index value
+ // Int_t *frowpixel array of pixel rows
+ // Int_t *fcolpixel array of pixel columns
+ // Double_t *fenepiexel array of pixel energies
+ // AliITSpList *pList the array of SDigits
+ // Outputs:
+ // AliITSpList *pList the array of SDigits
+ // Return:
+ // none.
+ Double_t x1l=0.0,y1l=0.0,z1l=0.0,x2l=0.0,y2l=0.0,z2l=0.0;
+ Int_t r1,r2,c1,c2,row,col,npixel = 0;
+ Int_t ntrack;
+ Double_t ene=0.0,etot=0.0;
+ const Float_t kconv = 10000.; // cm -> microns
+ const Float_t kconv1= 0.277e9; // GeV -> electrons equivalent
+
+ if(!(mod->LineSegmentL(hitpos,x1l,x2l,y1l,y2l,z1l,z2l,etot,ntrack)))return;
+
+ x2l += x1l; y2l += y1l; z2l += z1l; // Convert to ending coordinate.
+ // positions shifted and converted in microns
+ x1l = x1l*kconv + fSegmentation->Dx()/2.;
+ z1l = z1l*kconv + fSegmentation->Dz()/2.;
+ // positions shifted and converted in microns
+ x2l = x2l*kconv + fSegmentation->Dx()/2.;
+ z2l = z2l*kconv + fSegmentation->Dz()/2.;
+ etot *= kconv1; // convert from GeV to electrons equivalent.
+ Int_t module = mod->GetIndex();
+
+ // to account for the effective sensitive area
+ // introduced in geometry
+ if (z1l<0 || z1l>fSegmentation->Dz()) return;
+ if (z2l<0 || z2l>fSegmentation->Dz()) return;
+ if (x1l<0 || x1l>fSegmentation->Dx()) return;
+ if (x2l<0 || x2l>fSegmentation->Dx()) return;
+
+ //Get the col and row number starting from 1
+ // the x direction is not inverted for the second layer!!!
+ fSegmentation->GetPadIxz(x1l, z1l, c1, r1);
+ fSegmentation->GetPadIxz(x2l, z2l, c2, r2);
+
+ // to account for unexpected equal entrance and
+ // exit coordinates
+ if (x1l==x2l) x2l=x2l+x2l*0.1;
+ if (z1l==z2l) z2l=z2l+z2l*0.1;
+
+ if ((r1==r2) && (c1==c2)){
+ // no charge sharing
+ npixel = 1;
+ frowpixel[npixel-1] = r1;
+ fcolpixel[npixel-1] = c1;
+ fenepixel[npixel-1] = etot;
+ } else {
+ // charge sharing
+ ChargeSharing(x1l,z1l,x2l,z2l,c1,r1,c2,r2,etot,
+ npixel,frowpixel,fcolpixel,fenepixel);
+ } // end if r1==r2 && c1==c2.
+
+ for (Int_t npix=0;npix<npixel;npix++){
+ row = frowpixel[npix];
+ col = fcolpixel[npix];
+ ene = fenepixel[npix];
+ UpdateMapSignal(row,col,ntrack,hitpos,module,ene,pList);
+ // Starting capacitive coupling effect
+ SetCoupling(row,col,ntrack,hitpos,module,pList);
+ } // end for npix
+}
+//______________________________________________________________________
+void AliITSsimulationSPD::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 geometrical charge sharing when the track
+ // crosses more than one pixel.
+ // Inputs:
+ // 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 array of pixel rows
+ // Int_t *fcolpixel array of pixel columns
+ // Double_t *fenepiexel array of pixel energies
+ // Outputs:
+ // Int_t &npixel
+ // Return:
+ // none.
//
- // Reset histograms for this detector
+ //Begin_Html
+ /*
+ <img src="picts/ITS/barimodel_2.gif">
+ </pre>
+ <br clear=left>
+ <font size=+2 color=red>
+ <a href="mailto:Rocco.Caliandro@ba.infn.it"></a>.
+ </font>
+ <pre>
+ */
+ //End_Html
+ //Float_t dm;
+ Float_t xa,za,xb,zb,dx,dz,dtot,refr,refm,refc;
+ Float_t refn=0.;
+ Float_t arefm, arefr, arefn, arefc, azb, az2l, axb, ax2l;
+ Int_t dirx,dirz,rb,cb;
+ Int_t flag,flagrow,flagcol;
+ Double_t epar;
+
+ npixel = 0;
+ xa = x1l;
+ za = z1l;
+// dx = x1l-x2l;
+// dz = z1l-z2l;
+ dx = x2l-x1l;
+ dz = z2l-z1l;
+ dtot = TMath::Sqrt((dx*dx)+(dz*dz));
+ if (dtot==0.0) dtot = 0.01;
+ dirx = (Int_t) TMath::Sign((Float_t)1,dx);
+ dirz = (Int_t) TMath::Sign((Float_t)1,dz);
+
+ // calculate the x coordinate of the pixel in the next column
+ // and the z coordinate of the pixel in the next row
+ Float_t xpos, zpos;
+
+ fSegmentation->GetPadCxz(c1, r1-1, xpos, zpos);
+
+ Float_t xsize = fSegmentation->Dpx(0);
+ Float_t zsize = fSegmentation->Dpz(r1-1);
+
+ if (dirx == 1) refr = xpos+xsize/2.;
+ else refr = xpos-xsize/2.;
+
+ if (dirz == 1) refn = zpos+zsize/2.;
+ else refn = zpos-zsize/2.;
+
+ flag = 0;
+ flagrow = 0;
+ flagcol = 0;
+ do{
+ // calculate the x coordinate of the intersection with the pixel
+ // in the next cell in row direction
+ if(dz!=0)
+ refm = dx*((refn - z1l)/dz) + x1l;
+ else
+ refm = refr+dirx*xsize;
+
+ // calculate the z coordinate of the intersection with the pixel
+ // in the next cell in column direction
+ if (dx!=0)
+ refc = dz*((refr - x1l)/dx) + z1l;
+ else
+ refc = refn+dirz*zsize;
+
+ arefm = refm * dirx;
+ arefr = refr * dirx;
+ arefn = refn * dirz;
+ arefc = refc * dirz;
+
+ if ((arefm < arefr) && (arefn < arefc)){
+ // the track goes in the pixel in the next cell in row direction
+ xb = refm;
+ zb = refn;
+ cb = c1;
+ rb = r1 + dirz;
+ azb = zb * dirz;
+ az2l = z2l * dirz;
+ if (rb == r2) flagrow=1;
+ if (azb > az2l) {
+ zb = z2l;
+ xb = x2l;
+ } // end if
+ // shift to the pixel in the next cell in row direction
+ Float_t zsizeNext = fSegmentation->Dpz(rb-1);
+ //to account for cell at the borders of the detector
+ if(zsizeNext==0) zsizeNext = zsize;
+ refn += zsizeNext*dirz;
+ }else {
+ // the track goes in the pixel in the next cell in column direction
+ xb = refr;
+ zb = refc;
+ cb = c1 + dirx;
+ rb = r1;
+ axb = xb * dirx;
+ ax2l = x2l * dirx;
+ if (cb == c2) flagcol=1;
+ if (axb > ax2l) {
+ zb = z2l;
+ xb = x2l;
+ } // end ifaxb > ax2l
+
+ // shift to the pixel in the next cell in column direction
+ Float_t xsizeNext = fSegmentation->Dpx(cb-1);
+ //to account for cell at the borders of the detector
+ if(xsizeNext==0) xsizeNext = xsize;
+ refr += xsizeNext*dirx;
+ } // end if (arefm < arefr) && (arefn < arefc)
+
+ //calculate the energy lost in the crossed pixel
+ epar = TMath::Sqrt((xb-xa)*(xb-xa)+(zb-za)*(zb-za));
+ epar = etot*(epar/dtot);
+
+ //store row, column and energy lost in the crossed pixel
+ frowpixel[npixel] = r1;
+ fcolpixel[npixel] = c1;
+ fenepixel[npixel] = epar;
+ npixel++;
+
+ // the exit point of the track is reached
+ if (epar == 0) flag = 1;
+ if ((r1 == r2) && (c1 == c2)) flag = 1;
+ if (flag!=1) {
+ r1 = rb;
+ c1 = cb;
+ xa = xb;
+ za = zb;
+ } // end if flag!=1
+ } while (flag==0);
+}
+//______________________________________________________________________
+void AliITSsimulationSPD::SetCoupling(Int_t row, Int_t col, Int_t ntrack,
+ Int_t idhit,Int_t module,
+ AliITSpList *pList) {
+ // Take into account the coupling between adiacent pixels.
+ // The parameters probcol and probrow are the probability of the
+ // signal in one pixel shared in the two adjacent pixels along
+ // the column and row direction, respectively.
+ // Inputs:
+ // Int_t row pixel row number
+ // Int_t col pixel column number
+ // Int_t ntrack track number of track contributing to this signal
+ // Int_t idhit hit number of hit contributing to this signal
+ // Int_t module module number
+ // AliITSpList *pList the array of SDigits
+ // Outputs:
+ // AliITSpList *pList the array of SDigits
+ // Return:
+ // none.
//
-
- for ( int i=0;i<fNPixelsZ;i++ ) {
- if ((*fHis)[i]) ((TH1F*)(*fHis)[i])->Reset();
- }
-
+ //Begin_Html
+ /*
+ <img src="picts/ITS/barimodel_3.gif">
+ </pre>
+ <br clear=left>
+ <font size=+2 color=red>
+ <a href="mailto:tiziano.virgili@cern.ch"></a>.
+ </font>
+ <pre>
+ */
+ //End_Html
+ Int_t j1,j2,flag=0;
+ Double_t pulse1,pulse2;
+ Double_t couplR=0.0,couplC=0.0;
+ Double_t xr=0.;
+
+ GetCouplings(couplR,couplC);
+ j1 = row;
+ j2 = col;
+ pulse1 = fMapA2->GetSignal(row,col);
+ pulse2 = pulse1;
+ for (Int_t isign=-1;isign<=1;isign+=2){// loop in row direction
+ do{
+ j1 += isign;
+ // pulse1 *= couplR;
+ xr = gRandom->Rndm();
+ //if ((j1<0) || (j1>GetNPixelsZ()-1) || (pulse1<GetThreshold())){
+ if ((j1<0) || (j1>GetNPixelsZ()-1) || (xr>couplR)){
+ j1 = row;
+ flag = 1;
+ }else{
+ UpdateMapSignal(j1,col,ntrack,idhit,module,pulse1,pList);
+ // flag = 0;
+ flag = 1; // only first next!!
+ } // end if
+ } while(flag == 0);
+ // loop in column direction
+ do{
+ j2 += isign;
+ // pulse2 *= couplC;
+ xr = gRandom->Rndm();
+ //if ((j2<0) || (j2>(GetNPixelsX()-1)) || (pulse2<GetThreshold())){
+ if ((j2<0) || (j2>GetNPixelsX()-1) || (xr>couplC)){
+ j2 = col;
+ flag = 1;
+ }else{
+ UpdateMapSignal(row,j2,ntrack,idhit,module,pulse2,pList);
+ // flag = 0;
+ flag = 1; // only first next!!
+ } // end if
+ } while(flag == 0);
+ } // for isign
+}
+//______________________________________________________________________
+void AliITSsimulationSPD::SetCouplingOld(Int_t row, Int_t col, Int_t ntrack,
+ Int_t idhit,Int_t module,
+ AliITSpList *pList) {
+ // 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.
+ // Inputs:
+ // Int_t row pixel row number
+ // Int_t col pixel column number
+ // Int_t ntrack track number of track contributing to this pixel
+ // Int_t idhit hit index number of hit contributing to this pixel
+ // Int_t module module number
+ // AliITSpList *pList the array of SDigits
+ // Outputs:
+ // AliITSpList *pList the array of SDigits
+ // Return:
+ // none.
+ //
+ //Begin_Html
+ /*
+ <img src="picts/ITS/barimodel_3.gif">
+ </pre>
+ <br clear=left>
+ <font size=+2 color=red>
+ <a href="mailto:Rocco.Caliandro@ba.infn.it"></a>.
+ </font>
+ <pre>
+ */
+ //End_Html
+ Int_t j1,j2,flag=0;
+ Double_t pulse1,pulse2;
+ Double_t couplR=0.0,couplC=0.0;
+
+ GetCouplings(couplR,couplC);
+ j1 = row;
+ j2 = col;
+ pulse1 = fMapA2->GetSignal(row,col);
+ pulse2 = pulse1;
+ for (Int_t isign=-1;isign<=1;isign+=2){// loop in row direction
+ do{
+ j1 += isign;
+ pulse1 *= couplR;
+ if ((j1<0) || (j1>GetNPixelsZ()-1) || (pulse1<GetThreshold())){
+ pulse1 = fMapA2->GetSignal(row,col);
+ j1 = row;
+ flag = 1;
+ }else{
+ UpdateMapSignal(j1,col,ntrack,idhit,module,pulse1,pList);
+ flag = 0;
+ } // end if
+ } while(flag == 0);
+ // loop in column direction
+ do{
+ j2 += isign;
+ pulse2 *= couplC;
+ if ((j2<0) || (j2>(GetNPixelsX()-1)) || (pulse2<GetThreshold())){
+ pulse2 = fMapA2->GetSignal(row,col);
+ j2 = col;
+ flag = 1;
+ }else{
+ UpdateMapSignal(row,j2,ntrack,idhit,module,pulse2,pList);
+ flag = 0;
+ } // end if
+ } while(flag == 0);
+ } // for isign
+}
+//______________________________________________________________________
+void AliITSsimulationSPD::CreateDigit(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).
+ // Inputs:
+ // Int_t module
+ // AliITSpList *pList the array of SDigits
+ // Outputs:
+ // AliITSpList *pList the array of SDigits
+ // Return:
+ // none.
+
+ static AliITS *aliITS = (AliITS*)gAlice->GetModule("ITS");
+
+ Int_t size = AliITSdigitSPD::GetNTracks();
+ Int_t * digits = new Int_t[size];
+ Int_t * tracks = new Int_t[size];
+ Int_t * hits = new Int_t[size];
+ Float_t * charges = new Float_t[size];
+ Int_t j1;
+
+ module=0; // remove unused variable warning.
+ for(j1=0;j1<size;j1++){tracks[j1]=-3;hits[j1]=-1;charges[j1]=0.0;}
+ for (Int_t r=1;r<=GetNPixelsZ();r++) {
+ for (Int_t c=1;c<=GetNPixelsX();c++) {
+ // check if the deposited energy in a pixel is above the
+ // threshold
+ Float_t signal = (Float_t) fMapA2->GetSignal(r,c);
+ if ( signal > GetThreshold()) {
+ digits[0] = r-1; // digits starts from 0
+ digits[1] = c-1; // digits starts from 0
+ //digits[2] = 1;
+ digits[2] = (Int_t) signal; // the signal is stored in
+ // electrons
+ for(j1=0;j1<size;j1++){
+ if(j1<pList->GetNEnteries()){
+ tracks[j1] = pList->GetTrack(r,c,j1);
+ hits[j1] = pList->GetHit(r,c,j1);
+ //}else{
+ //tracks[j1] = -3;
+ //hits[j1] = -1;
+ } // end if
+ //charges[j1] = 0;
+ } // end for j1
+ Float_t phys = 0;
+ aliITS->AddSimDigit(0,phys,digits,tracks,hits,charges);
+ if(GetDebug()){
+ cout << " CreateSPDDigit mod=" << fModule << " r,c=" << r;
+ cout <<","<<c<< " sig=" << fpList->GetSignalOnly(r,c);
+ cout << " noise=" << fpList->GetNoise(r,c);
+ cout << " Msig="<< signal << " Thres=" << GetThreshold();
+ cout <<endl;
+ }// end if GetDebug
+ } // end if of threshold condition
+ } // for c
+ }// end do on pixels
+ delete [] digits;
+ delete [] tracks;
+ delete [] hits;
+ delete [] charges;
+}
+//______________________________________________________________________
+void AliITSsimulationSPD::SetFluctuations(AliITSpList *pList,Int_t module) {
+ // 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.
+ // Inputs:
+ // Int_t module modulel number
+ // AliITSpList *pList the array of SDigits
+ // Outputs:
+ // AliITSpList *pList the array of SDigits
+ // Return:
+ // none.
+ //
+ //Begin_Html
+ /*
+ <img src="picts/ITS/barimodel_1.gif">
+ </pre>
+ <br clear=left>
+ <font size=+2 color=red>
+ <a href="mailto:Rocco.Caliandro@ba.infn.it"></a>.
+ </font>
+ <pre>
+ */
+ //End_Html
+ Double_t thr=0.0,sigm=0.0;
+ Double_t signal,sigma;
+ Int_t iz,ix;
+
+ GetThresholds(thr,sigm);
+ sigma = (Double_t) sigm;
+ for(iz=1;iz<=GetNPixelsZ();iz++){
+ for(ix=1;ix<=GetNPixelsX();ix++){
+ signal = sigma*gRandom->Gaus();
+ fMapA2->SetHit(iz,ix,signal);
+ // insert in the label-signal-hit list the pixels fired
+ // only by noise
+ pList->AddNoise(iz,ix,module,signal);
+ } // end of loop on pixels
+ } // end of loop on pixels
+}
+//______________________________________________________________________
+void AliITSsimulationSPD::SetMask() {
+ // 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.
+ // Inputs:
+ // none.
+ // Outputs:
+ // none.
+ // Return:
+ // none.
+ Double_t signal;
+ Int_t iz,ix,im;
+ Float_t totMask;
+ Float_t perc = ((AliITSresponseSPD*)fResponse)->GetFractionDead();
+ // in this way we get the same set of random numbers for all runs.
+ // This is a cluge for now.
+ static TRandom *rnd = new TRandom();
+
+ totMask= perc*GetNPixelsZ()*GetNPixelsX();
+ for(im=1;im<totMask;im++){
+ do{
+ ix=(Int_t)(rnd->Rndm()*(GetNPixelsX()-1.) + 1.);
+ } while(ix<=0 || ix>GetNPixelsX());
+ do{
+ iz=(Int_t)(rnd->Rndm()*(GetNPixelsZ()-1.) + 1.);
+ } while(iz<=0 || iz>GetNPixelsZ());
+ signal = -1.;
+ fMapA2->SetHit(iz,ix,signal);
+ } // end loop on masked pixels
+}
+//______________________________________________________________________
+void AliITSsimulationSPD::CreateHistograms() {
+ // Create Histograms
+ // Inputs:
+ // none.
+ // Outputs:
+ // none.
+ // Return:
+ // none.
+ Int_t i;
+
+ fHis=new TObjArray(GetNPixelsZ());
+ for(i=0;i<GetNPixelsZ();i++) {
+ TString spdname("spd_");
+ Char_t candnum[4];
+ sprintf(candnum,"%d",i+1);
+ spdname.Append(candnum);
+ (*fHis)[i] = new TH1F(spdname.Data(),"SPD maps",
+ GetNPixelsX(),0.,(Float_t) GetNPixelsX());
+ } // end for i
+}
+//______________________________________________________________________
+void AliITSsimulationSPD::ResetHistograms() {
+ // Reset histograms for this detector
+ // Inputs:
+ // none.
+ // Outputs:
+ // none.
+ // Return:
+ // none.
+ Int_t i;
+
+ for(i=0;i<GetNPixelsZ();i++ ) {
+ if ((*fHis)[i]) ((TH1F*)(*fHis)[i])->Reset();
+ } // end for i
+}
+//______________________________________________________________________
+void AliITSsimulationSPD::WriteSDigits(AliITSpList *pList){
+ // Fills the Summable digits Tree
+ // Inputs:
+ // AliITSpList *pList the array of SDigits
+ // Outputs:
+ // AliITSpList *pList the array of SDigits
+ // Return:
+ // none.
+ Int_t i,ni,j,nj;
+ static AliITS *aliITS = (AliITS*)gAlice->GetModule("ITS");
+
+ pList->GetMaxMapIndex(ni,nj);
+ for(i=0;i<ni;i++)for(j=0;j<nj;j++){
+ if(pList->GetSignalOnly(i,j)>0.0){
+ aliITS->AddSumDigit(*(pList->GetpListItem(i,j)));
+ if(GetDebug()){
+ cout << "pListSPD: " << *(pList->GetpListItem(i,j)) << endl;
+ cout << " CreateSPDSDigit mod=" << fModule << " r,c=";
+ cout << i <<","<< j << " sig=" << fpList->GetSignalOnly(i,j);
+ cout << " noise=" << fpList->GetNoise(i,j) <<endl;
+ } // end if GetDebug
+ } // end if
+ } // end for i,j
+ return;
+}
+//______________________________________________________________________
+void AliITSsimulationSPD::FillMapFrompList(AliITSpList *pList){
+ // Fills fMap2A from the pList of Summable digits
+ // Inputs:
+ // AliITSpList *pList the array of SDigits
+ // Outputs:
+ // AliITSpList *pList the array of SDigits
+ // Return:
+ // none.
+ Int_t ix,iz;
+
+ for(iz=0;iz<GetNPixelsZ();iz++)for(ix=0;ix<GetNPixelsX();ix++)
+ fMapA2->AddSignal(iz,ix,pList->GetSignal(iz,ix));
+ return;
}
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git://git.uio.no / u / mrichter / AliRoot.git / blobdiff