--- /dev/null
+/**************************************************************************
+ * 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. *
+**************************************************************************/
+
+//--------------------------------------------------------------------//
+// //
+// AliTOFtrackerV1 Class //
+// Task: Perform association of the ESD tracks to TOF Clusters //
+// and Update ESD track with associated TOF Cluster parameters //
+// //
+// -- Authors : S. Arcelli, C. Zampolli (Bologna University and INFN) //
+// -- Contacts: Annalisa.De.Caro@cern.ch //
+// -- : Chiara.Zampolli@bo.infn.it //
+// -- : Silvia.Arcelli@bo.infn.it //
+// //
+//--------------------------------------------------------------------//
+
+#include <Rtypes.h>
+#include <TROOT.h>
+
+#include <TClonesArray.h>
+#include <TTree.h>
+#include <TFile.h>
+#include <TH1F.h>
+#include <TH2F.h>
+
+#include "AliAlignObj.h"
+#include "AliESDtrack.h"
+#include "AliESDEvent.h"
+#include "AliLog.h"
+#include "AliTrackPointArray.h"
+
+#include "AliTOFcalib.h"
+#include "AliTOFRecoParam.h"
+#include "AliTOFcluster.h"
+#include "AliTOFGeometryV5.h"
+#include "AliTOFtrackerV1.h"
+#include "AliTOFtrack.h"
+
+extern TROOT *gROOT;
+
+ClassImp(AliTOFtrackerV1)
+
+//_____________________________________________________________________________
+AliTOFtrackerV1::AliTOFtrackerV1():
+ fRecoParam(0x0),
+ fGeom(0x0),
+ fPid(0x0),
+ fN(0),
+ fNseeds(0),
+ fNseedsTOF(0),
+ fngoodmatch(0),
+ fnbadmatch(0),
+ fnunmatch(0),
+ fnmatch(0),
+ fTracks(0x0),
+ fSeeds(0x0),
+ fHDigClusMap(0x0),
+ fHDigNClus(0x0),
+ fHDigClusTime(0x0),
+ fHDigClusToT(0x0),
+ fHRecNClus(0x0),
+ fHRecChi2(0x0),
+ fHRecDistZ(0x0),
+ fHRecSigYVsP(0x0),
+ fHRecSigZVsP(0x0),
+ fHRecSigYVsPWin(0x0),
+ fHRecSigZVsPWin(0x0)
+ {
+ //AliTOFtrackerV1 main Ctor
+
+ // Getting the geometry
+ fGeom=new AliTOFGeometryV5();
+ // Read the reconstruction parameters from the OCDB
+ AliTOFcalib *calib = new AliTOFcalib(fGeom);
+ fRecoParam = (AliTOFRecoParam*)calib->ReadRecParFromCDB("TOF/Calib",-1);
+ if(fRecoParam->GetApplyPbPbCuts())fRecoParam=fRecoParam->GetPbPbparam();
+ delete calib;
+ Double_t parPID[2];
+ parPID[0]=fRecoParam->GetTimeResolution();
+ parPID[1]=fRecoParam->GetTimeNSigma();
+ fPid=new AliTOFpidESD(parPID);
+ InitCheckHists();
+
+}
+//_____________________________________________________________________________
+AliTOFtrackerV1::AliTOFtrackerV1(const AliTOFtrackerV1 &t):
+ AliTracker(),
+ fRecoParam(0x0),
+ fGeom(0x0),
+ fPid(0x0),
+ fN(0),
+ fNseeds(0),
+ fNseedsTOF(0),
+ fngoodmatch(0),
+ fnbadmatch(0),
+ fnunmatch(0),
+ fnmatch(0),
+ fTracks(0x0),
+ fSeeds(0x0),
+ fHDigClusMap(0x0),
+ fHDigNClus(0x0),
+ fHDigClusTime(0x0),
+ fHDigClusToT(0x0),
+ fHRecNClus(0x0),
+ fHRecChi2(0x0),
+ fHRecDistZ(0x0),
+ fHRecSigYVsP(0x0),
+ fHRecSigZVsP(0x0),
+ fHRecSigYVsPWin(0x0),
+ fHRecSigZVsPWin(0x0)
+ {
+ //AliTOFtrackerV1 copy Ctor
+
+ fNseeds=t.fNseeds;
+ fNseeds=t.fNseeds;
+ fNseedsTOF=t.fNseedsTOF;
+ fngoodmatch=t.fngoodmatch;
+ fnbadmatch=t.fnbadmatch;
+ fnunmatch=t.fnunmatch;
+ fnmatch=t.fnmatch;
+ fRecoParam=t.fRecoParam;
+ fGeom=t.fGeom;
+ fPid=t.fPid;
+ fSeeds=t.fSeeds;
+ fTracks=t.fTracks;
+ fN=t.fN;
+}
+
+//_____________________________________________________________________________
+AliTOFtrackerV1& AliTOFtrackerV1::operator=(const AliTOFtrackerV1 &t)
+{
+ //AliTOFtrackerV1 assignment operator
+
+ this->fNseeds=t.fNseeds;
+ this->fNseedsTOF=t.fNseedsTOF;
+ this->fngoodmatch=t.fngoodmatch;
+ this->fnbadmatch=t.fnbadmatch;
+ this->fnunmatch=t.fnunmatch;
+ this->fnmatch=t.fnmatch;
+ this->fRecoParam = t.fRecoParam;
+ this->fGeom = t.fGeom;
+ this->fPid = t.fPid;
+ this->fSeeds=t.fSeeds;
+ this->fTracks=t.fTracks;
+ this->fN=t.fN;
+ return *this;
+
+}
+//_____________________________________________________________________________
+AliTOFtrackerV1::~AliTOFtrackerV1() {
+ //
+ // Dtor
+ //
+
+ SaveCheckHists();
+
+ delete fRecoParam;
+ delete fGeom;
+ delete fPid;
+ delete fHDigClusMap;
+ delete fHDigNClus;
+ delete fHDigClusTime;
+ delete fHDigClusToT;
+ delete fHRecNClus;
+ delete fHRecChi2;
+ delete fHRecDistZ;
+ delete fHRecSigYVsP;
+ delete fHRecSigZVsP;
+ delete fHRecSigYVsPWin;
+ delete fHRecSigZVsPWin;
+}
+//_____________________________________________________________________________
+Int_t AliTOFtrackerV1::PropagateBack(AliESDEvent* event) {
+ //
+ // Gets seeds from ESD event and Match with TOF Clusters
+ //
+
+
+ //Initialise some counters
+
+ fNseeds=0;
+ fNseedsTOF=0;
+ fngoodmatch=0;
+ fnbadmatch=0;
+ fnunmatch=0;
+ fnmatch=0;
+
+ Int_t ntrk=event->GetNumberOfTracks();
+ fNseeds = ntrk;
+ fSeeds= new TClonesArray("AliESDtrack",ntrk);
+ TClonesArray &aESDTrack = *fSeeds;
+
+
+ //Load ESD tracks into a local Array of ESD Seeds
+
+ for (Int_t i=0; i<fNseeds; i++) {
+ AliESDtrack *t=event->GetTrack(i);
+ new(aESDTrack[i]) AliESDtrack(*t);
+ }
+
+ //Prepare ESD tracks candidates for TOF Matching
+ CollectESD();
+
+ //Matching Step
+ MatchTracks();
+
+ AliInfo(Form("Number of matched tracks: %d",fnmatch));
+ AliInfo(Form("Number of good matched tracks: %d",fngoodmatch));
+ AliInfo(Form("Number of bad matched tracks: %d",fnbadmatch));
+
+ //Update the matched ESD tracks
+
+ for (Int_t i=0; i<ntrk; i++) {
+ AliESDtrack *t=event->GetTrack(i);
+ AliESDtrack *seed =(AliESDtrack*)fSeeds->UncheckedAt(i);
+ if(seed->GetTOFsignal()>0){
+ t->SetTOFsignal(seed->GetTOFsignal());
+ t->SetTOFcluster(seed->GetTOFcluster());
+ t->SetTOFsignalToT(seed->GetTOFsignalToT());
+ t->SetTOFsignalRaw(seed->GetTOFsignalRaw());
+ t->SetTOFsignalDz(seed->GetTOFsignalDz());
+ t->SetTOFCalChannel(seed->GetTOFCalChannel());
+ Int_t tlab[3]; seed->GetTOFLabel(tlab);
+ t->SetTOFLabel(tlab);
+ AliTOFtrack *track = new AliTOFtrack(*seed);
+ t->UpdateTrackParams(track,AliESDtrack::kTOFout);
+ delete track;
+ }
+ }
+
+ //Handle Time Zero information
+
+ Double_t timeZero=0.;
+ Double_t timeZeroMax=99999.;
+ Bool_t usetimeZero = fRecoParam->UseTimeZero();
+ Bool_t timeZeroFromT0 = fRecoParam->GetTimeZerofromT0();
+ Bool_t timeZeroFromTOF = fRecoParam->GetTimeZerofromTOF();
+
+ AliDebug(1,Form("Use Time Zero?: %d",usetimeZero));
+ AliDebug(1,Form("Time Zero from T0? : %d",timeZeroFromT0));
+ AliDebug(1,Form("Time Zero From TOF? : %d",timeZeroFromTOF));
+
+ if(usetimeZero){
+ if(timeZeroFromT0){
+ timeZero=GetTimeZerofromT0(event);
+ }
+ if(timeZeroFromTOF && (timeZero>timeZeroMax || !timeZeroFromT0)){
+ timeZero=GetTimeZerofromTOF(event);
+ }
+ }
+ AliDebug(2,Form("time Zero used in PID: %f",timeZero));
+ //Make TOF PID
+ fPid->MakePID(event,timeZero);
+
+ if (fSeeds) {
+ fSeeds->Delete();
+ delete fSeeds;
+ fSeeds = 0x0;
+ }
+ if (fTracks) {
+ fTracks->Delete();
+ delete fTracks;
+ fTracks = 0x0;
+ }
+ return 0;
+
+}
+//_________________________________________________________________________
+void AliTOFtrackerV1::CollectESD() {
+ //prepare the set of ESD tracks to be matched to clusters in TOF
+
+ Int_t seedsTOF1=0;
+ Int_t seedsTOF2=0;
+
+ fTracks= new TClonesArray("AliTOFtrack");
+ TClonesArray &aTOFTrack = *fTracks;
+ for (Int_t i=0; i<fNseeds; i++) {
+
+ AliESDtrack *t =(AliESDtrack*)fSeeds->UncheckedAt(i);
+ if ((t->GetStatus()&AliESDtrack::kTPCout)==0)continue;
+
+ // TRD 'good' tracks, already propagated at 371 cm
+
+ AliTOFtrack *track = new AliTOFtrack(*t); // New
+ Double_t x = track->GetX(); //New
+
+ if (((t->GetStatus()&AliESDtrack::kTRDout)!=0 ) &&
+ ( x >= fGeom->RinTOF()) ){
+ track->SetSeedIndex(i);
+ t->UpdateTrackParams(track,AliESDtrack::kTOFout);
+ new(aTOFTrack[fNseedsTOF]) AliTOFtrack(*track);
+ fNseedsTOF++;
+ seedsTOF1++;
+ delete track;
+ }
+
+ // Propagate the rest of TPCbp
+
+ else {
+ if(track->PropagateToInnerTOF()){
+ track->SetSeedIndex(i);
+ t->UpdateTrackParams(track,AliESDtrack::kTOFout);
+ new(aTOFTrack[fNseedsTOF]) AliTOFtrack(*track);
+ fNseedsTOF++;
+ seedsTOF2++;
+ }
+ delete track;
+ }
+ }
+
+ AliInfo(Form("Number of TOF seeds %i",fNseedsTOF));
+ AliInfo(Form("Number of TOF seeds Type 1 %i",seedsTOF1));
+ AliInfo(Form("Number of TOF seeds Type 2 %i",seedsTOF2));
+
+ // Sort according uncertainties on track position
+ fTracks->Sort();
+
+}
+//_________________________________________________________________________
+void AliTOFtrackerV1::MatchTracks( ){
+ //
+ //Match ESD tracks to clusters in TOF
+ //
+
+
+ // Parameters regulating the reconstruction
+ Float_t dY=fGeom->XPad();
+ Float_t dZ=fGeom->ZPad();
+
+ const Int_t ncmax = 100;
+ Float_t sensRadius = fRecoParam->GetSensRadius();
+ Float_t scaleFact = fRecoParam->GetWindowScaleFact();
+ Float_t dyMax=fRecoParam->GetWindowSizeMaxY();
+ Float_t dzMax=fRecoParam->GetWindowSizeMaxZ();
+ Double_t maxChi2=fRecoParam->GetMaxChi2();
+ Bool_t timeWalkCorr = fRecoParam->GetTimeWalkCorr();
+ AliDebug(1,"++++++++++++++TOF Reconstruction Parameters:++++++++++++ \n");
+ AliDebug(1,Form("TOF sens radius: %f",sensRadius));
+ AliDebug(1,Form("TOF Window scale factor: %f",scaleFact));
+ AliDebug(1,Form("TOF Window max dy: %f",dyMax));
+ AliDebug(1,Form("TOF Window max dz: %f",dzMax));
+ AliDebug(1,Form("TOF Max Chi2: %f",maxChi2));
+ AliDebug(1,Form("Time Walk Correction? : %d",timeWalkCorr));
+
+
+ //The matching loop
+
+ AliTOFcalib *calib = new AliTOFcalib(fGeom);
+
+ for (Int_t iseed=0; iseed<fNseedsTOF; iseed++) {
+
+ AliTOFtrack *track =(AliTOFtrack*)fTracks->UncheckedAt(iseed);
+ AliESDtrack *t =(AliESDtrack*)fSeeds->UncheckedAt(track->GetSeedIndex());
+ if(t->GetTOFsignal()>0. ) continue;
+ AliTOFtrack *trackTOFin =new AliTOFtrack(*track);
+
+ // Determine a window around the track
+ Double_t x,par[5]; trackTOFin->GetExternalParameters(x,par);
+ Double_t cov[15]; trackTOFin->GetExternalCovariance(cov);
+
+ Double_t z = par[1];
+ Double_t dz = scaleFact*3.*TMath::Sqrt(cov[2]+dZ*dZ/12);
+ Double_t dphi = scaleFact*3.*TMath::Sqrt(cov[0]+dY*dY/12.)/sensRadius;
+
+ Double_t phi=TMath::ATan2(par[0],x) + trackTOFin->GetAlpha();
+ if (phi<-TMath::Pi())phi+=2*TMath::Pi();
+ if (phi>=TMath::Pi())phi-=2*TMath::Pi();
+
+ //upper limit on window's size.
+ if(dz> dzMax) dz=dzMax;
+ if(dphi*sensRadius> dyMax) dphi=dyMax/sensRadius;
+
+
+ // find the clusters inside the selected window
+ Int_t nc=0;
+ AliTOFcluster *clusters[ncmax]; // pointers to the clusters in the window
+ Int_t index[ncmax];//to keep track of the cluster index
+ for (Int_t k=FindClusterIndex(z-dz); k<fN; k++) {
+ AliTOFcluster *c=fClusters[k];
+ if(nc>ncmax)break;
+ if(c->GetZ() > z+dz) break;
+ if(c->IsUsed()) continue;
+ if(!c->GetStatus()) continue; // skip bad channels as declared in OCDB
+ Float_t xyz[3]; c->GetGlobalXYZ(xyz);
+ Double_t clPhi=TMath::ATan2(xyz[1],xyz[0]);
+ Double_t dph=TMath::Abs(clPhi-phi);
+ if (dph>TMath::Pi()) dph-=2.*TMath::Pi();
+ if (TMath::Abs(dph)>dphi) continue;
+ clusters[nc]=c;
+ index[nc] = k;
+ nc++;
+ }
+
+ //start propagation: go to the average TOF pad middle plane at ~378.5 cm
+
+ Float_t xTOF = sensRadius;
+ Double_t ymax = xTOF*TMath::Tan(0.5*fGeom->GetAlpha());
+ Bool_t skip = kFALSE;
+ Double_t ysect = trackTOFin->GetYat(xTOF,skip);
+ if (skip) break;
+ if (ysect > ymax) {
+ if (!trackTOFin->Rotate(fGeom->GetAlpha())) {
+ break;
+ }
+ } else if (ysect <-ymax) {
+ if (!trackTOFin->Rotate(fGeom->GetAlpha())) {
+ break;
+ }
+ }
+ if(!trackTOFin->PropagateTo(xTOF)) {
+ break;
+ }
+
+
+ AliTOFcluster *bestCluster=0;
+ Double_t bestChi2=maxChi2;
+ Int_t idclus=-1;
+ for (Int_t i=0; i<nc; i++){
+ AliTOFcluster *c=clusters[i]; // one of the preselected clusters
+ Double_t chi2=trackTOFin->GetPredictedChi2((AliCluster3D*)c);
+ if (chi2 >= bestChi2) continue;
+ bestChi2=chi2;
+ bestCluster=c;
+ idclus=index[i];
+ }
+
+ if (!bestCluster) { // no matching , go to the next track
+ fnunmatch++;
+ delete trackTOFin;
+ continue;
+ }
+
+ fnmatch++;
+ bestCluster->Use();
+ if (
+ (bestCluster->GetLabel(0)==TMath::Abs(trackTOFin->GetLabel()))
+ ||
+ (bestCluster->GetLabel(1)==TMath::Abs(trackTOFin->GetLabel()))
+ ||
+ (bestCluster->GetLabel(2)==TMath::Abs(trackTOFin->GetLabel()))
+ ) {
+ fngoodmatch++;
+ AliDebug(2,Form(" track label good %5i",trackTOFin->GetLabel()));
+
+ }
+ else{
+ fnbadmatch++;
+ AliDebug(2,Form(" track label bad %5i",trackTOFin->GetLabel()));
+ }
+
+ //Propagate the track to the best matched cluster
+ trackTOFin->PropagateTo(bestCluster);
+
+
+ //now take the local distance in Z from the pad center for time walk correction
+ Float_t tiltangle = fGeom->GetAngles(bestCluster->GetDetInd(1),bestCluster->GetDetInd(2))*TMath::DegToRad();
+ Double_t dzTW=trackTOFin->GetZ()-bestCluster->GetZ(); // in cm
+ dzTW/=TMath::Cos(tiltangle);
+
+ //update the ESD track and delete the TOFtrack
+ t->UpdateTrackParams(trackTOFin,AliESDtrack::kTOFout);
+ delete trackTOFin;
+
+ // Store quantities to be used in the TOF Calibration
+ Float_t tToT=fGeom->ToTBinWidth()*bestCluster->GetToT()*1E-3; // in ns
+ t->SetTOFsignalToT(tToT);
+ Float_t rawTime=fGeom->TdcBinWidth()*bestCluster->GetTDCRAW()+32; // RAW time,in ps
+ t->SetTOFsignalRaw(rawTime);
+ t->SetTOFsignalDz(dzTW);
+ AliDebug(2,Form(" Setting TOF raw time: %f z distance: %f time: %f = ",rawTime,dzTW));
+ Int_t ind[5];
+ ind[0]=bestCluster->GetDetInd(0);
+ ind[1]=bestCluster->GetDetInd(1);
+ ind[2]=bestCluster->GetDetInd(2);
+ ind[3]=bestCluster->GetDetInd(3);
+ ind[4]=bestCluster->GetDetInd(4);
+ Int_t calindex = calib->GetIndex(ind);
+ t->SetTOFCalChannel(calindex);
+
+ // keep track of the track labels in the matched cluster
+ Int_t tlab[3];
+ tlab[0]=bestCluster->GetLabel(0);
+ tlab[1]=bestCluster->GetLabel(1);
+ tlab[2]=bestCluster->GetLabel(2);
+ AliDebug(2,Form(" tdc time of the matched track %i = ",bestCluster->GetTDC()));
+ Double_t tof=fGeom->TdcBinWidth()*bestCluster->GetTDC()+32; // in ps
+ AliDebug(2,Form(" tof time of the matched track: %f = ",tof));
+ Double_t tofcorr=tof;
+ if(timeWalkCorr)tofcorr=CorrectTimeWalk(dzTW,tof);
+ AliDebug(2,Form(" tof time of the matched track, after TW corr: %f = ",tofcorr));
+ //Set TOF time signal and pointer to the matched cluster
+ t->SetTOFsignal(tofcorr);
+ t->SetTOFcluster(idclus); // pointing to the recPoints tree
+ t->SetTOFLabel(tlab);
+
+ Double_t mom=t->GetP();
+ // Fill Reco-QA histos for Reconstruction
+ fHRecNClus->Fill(nc);
+ fHRecChi2->Fill(bestChi2);
+ fHRecDistZ->Fill(dzTW);
+ fHRecSigYVsP->Fill(mom,TMath::Sqrt(cov[0]));
+ fHRecSigZVsP->Fill(mom,TMath::Sqrt(cov[2]));
+ fHRecSigYVsPWin->Fill(mom,dphi*sensRadius);
+ fHRecSigZVsPWin->Fill(mom,dz);
+
+ // Fill Tree for on-the-fly offline Calibration
+ // no longer there - all info is in the ESDs now
+
+ }
+ delete calib;
+
+}
+//_________________________________________________________________________
+Int_t AliTOFtrackerV1::LoadClusters(TTree *cTree) {
+ //--------------------------------------------------------------------
+ //This function loads the TOF clusters
+ //--------------------------------------------------------------------
+
+ Int_t npadX = fGeom->NpadX();
+ Int_t npadZ = fGeom->NpadZ();
+ Int_t nStripA = fGeom->NStripA();
+ Int_t nStripB = fGeom->NStripB();
+ Int_t nStripC = fGeom->NStripC();
+
+ TBranch *branch=cTree->GetBranch("TOF");
+ if (!branch) {
+ AliError("can't get the branch with the TOF clusters !");
+ return 1;
+ }
+
+ TClonesArray dummy("AliTOFcluster",10000), *clusters=&dummy;
+ branch->SetAddress(&clusters);
+
+ cTree->GetEvent(0);
+ Int_t nc=clusters->GetEntriesFast();
+ fHDigNClus->Fill(nc);
+
+ for (Int_t i=0; i<nc; i++) {
+ AliTOFcluster *c=(AliTOFcluster*)clusters->UncheckedAt(i);
+ fClusters[i]=new AliTOFcluster(*c); fN++;
+
+ // Fill Digits QA histos
+
+ Int_t isector = c->GetDetInd(0);
+ Int_t iplate = c->GetDetInd(1);
+ Int_t istrip = c->GetDetInd(2);
+ Int_t ipadX = c->GetDetInd(4);
+ Int_t ipadZ = c->GetDetInd(3);
+
+ Float_t time =(fGeom->TdcBinWidth()*c->GetTDC())*1E-3; // in ns
+ Float_t tot = (fGeom->TdcBinWidth()*c->GetToT())*1E-3;//in ns
+
+ Int_t stripOffset = 0;
+ switch (iplate) {
+ case 0:
+ stripOffset = 0;
+ break;
+ case 1:
+ stripOffset = nStripC;
+ break;
+ case 2:
+ stripOffset = nStripC+nStripB;
+ break;
+ case 3:
+ stripOffset = nStripC+nStripB+nStripA;
+ break;
+ case 4:
+ stripOffset = nStripC+nStripB+nStripA+nStripB;
+ break;
+ default:
+ AliError(Form("Wrong plate number in TOF (%d) !",iplate));
+ break;
+ };
+ Int_t zindex=npadZ*(istrip+stripOffset)+(ipadZ+1);
+ Int_t phiindex=npadX*isector+ipadX+1;
+ fHDigClusMap->Fill(zindex,phiindex);
+ fHDigClusTime->Fill(time);
+ fHDigClusToT->Fill(tot);
+ }
+
+
+ return 0;
+}
+//_________________________________________________________________________
+void AliTOFtrackerV1::UnloadClusters() {
+ //--------------------------------------------------------------------
+ //This function unloads TOF clusters
+ //--------------------------------------------------------------------
+ for (Int_t i=0; i<fN; i++) {
+ delete fClusters[i];
+ fClusters[i] = 0x0;
+ }
+ fN=0;
+}
+
+//_________________________________________________________________________
+Int_t AliTOFtrackerV1::FindClusterIndex(Double_t z) const {
+ //--------------------------------------------------------------------
+ // This function returns the index of the nearest cluster
+ //--------------------------------------------------------------------
+ //MOD
+ //Here we need to get the Z in the tracking system
+
+ if (fN==0) return 0;
+ if (z <= fClusters[0]->GetZ()) return 0;
+ if (z > fClusters[fN-1]->GetZ()) return fN;
+ Int_t b=0, e=fN-1, m=(b+e)/2;
+ for (; b<e; m=(b+e)/2) {
+ if (z > fClusters[m]->GetZ()) b=m+1;
+ else e=m;
+ }
+ return m;
+}
+
+//_________________________________________________________________________
+Bool_t AliTOFtrackerV1::GetTrackPoint(Int_t index, AliTrackPoint& p) const
+{
+ // Get track space point with index i
+ // Coordinates are in the global system
+ AliTOFcluster *cl = fClusters[index];
+ Float_t xyz[3];
+ cl->GetGlobalXYZ(xyz);
+ Float_t phi=TMath::ATan2(xyz[1],xyz[0]);
+ Float_t phiangle = (Int_t(phi*TMath::RadToDeg()/20.)+0.5)*20.*TMath::DegToRad();
+ Float_t sinphi = TMath::Sin(phiangle), cosphi = TMath::Cos(phiangle);
+ Float_t tiltangle = fGeom->GetAngles(cl->GetDetInd(1),cl->GetDetInd(2))*TMath::DegToRad();
+ Float_t sinth = TMath::Sin(tiltangle), costh = TMath::Cos(tiltangle);
+ Float_t sigmay2 = fGeom->XPad()*fGeom->XPad()/12.;
+ Float_t sigmaz2 = fGeom->ZPad()*fGeom->ZPad()/12.;
+ Float_t cov[6];
+ cov[0] = sinphi*sinphi*sigmay2 + cosphi*cosphi*sinth*sinth*sigmaz2;
+ cov[1] = -sinphi*cosphi*sigmay2 + sinphi*cosphi*sinth*sinth*sigmaz2;
+ cov[2] = -cosphi*sinth*costh*sigmaz2;
+ cov[3] = cosphi*cosphi*sigmay2 + sinphi*sinphi*sinth*sinth*sigmaz2;
+ cov[4] = -sinphi*sinth*costh*sigmaz2;
+ cov[5] = costh*costh*sigmaz2;
+ p.SetXYZ(xyz[0],xyz[1],xyz[2],cov);
+
+ // Detector numbering scheme
+ Int_t nSector = fGeom->NSectors();
+ Int_t nPlate = fGeom->NPlates();
+ Int_t nStripA = fGeom->NStripA();
+ Int_t nStripB = fGeom->NStripB();
+ Int_t nStripC = fGeom->NStripC();
+
+ Int_t isector = cl->GetDetInd(0);
+ if (isector >= nSector)
+ AliError(Form("Wrong sector number in TOF (%d) !",isector));
+ Int_t iplate = cl->GetDetInd(1);
+ if (iplate >= nPlate)
+ AliError(Form("Wrong plate number in TOF (%d) !",iplate));
+ Int_t istrip = cl->GetDetInd(2);
+
+ Int_t stripOffset = 0;
+ switch (iplate) {
+ case 0:
+ stripOffset = 0;
+ break;
+ case 1:
+ stripOffset = nStripC;
+ break;
+ case 2:
+ stripOffset = nStripC+nStripB;
+ break;
+ case 3:
+ stripOffset = nStripC+nStripB+nStripA;
+ break;
+ case 4:
+ stripOffset = nStripC+nStripB+nStripA+nStripB;
+ break;
+ default:
+ AliError(Form("Wrong plate number in TOF (%d) !",iplate));
+ break;
+ };
+
+ Int_t idet = (2*(nStripC+nStripB)+nStripA)*isector +
+ stripOffset +
+ istrip;
+ UShort_t volid = AliGeomManager::LayerToVolUID(AliGeomManager::kTOF,idet);
+ p.SetVolumeID((UShort_t)volid);
+ return kTRUE;
+}
+//_________________________________________________________________________
+void AliTOFtrackerV1::InitCheckHists() {
+
+ //Init histos for Digits/Reco QA and Calibration
+
+ //Digits "QA"
+ fHDigClusMap = new TH2F("TOFDig_ClusMap", "",182,0.5,182.5,864, 0.5,864.5);
+ fHDigNClus = new TH1F("TOFDig_NClus", "",200,0.5,200.5);
+ fHDigClusTime = new TH1F("TOFDig_ClusTime", "",2000,0.,200.);
+ fHDigClusToT = new TH1F("TOFDig_ClusToT", "",500,0.,100);
+
+ //Reco "QA"
+ fHRecNClus =new TH1F("TOFRec_NClusW", "",50,0.5,50.5);
+ fHRecDistZ=new TH1F("TOFRec_DistZ", "",50,0.5,10.5);
+ fHRecChi2=new TH1F("TOFRec_Chi2", "",100,0.,10.);
+ fHRecSigYVsP=new TH2F("TOFDig_SigYVsP", "",40,0.,4.,100, 0.,5.);
+ fHRecSigZVsP=new TH2F("TOFDig_SigZVsP", "",40,0.,4.,100, 0.,5.);
+ fHRecSigYVsPWin=new TH2F("TOFDig_SigYVsPWin", "",40,0.,4.,100, 0.,50.);
+ fHRecSigZVsPWin=new TH2F("TOFDig_SigZVsPWin", "",40,0.,4.,100, 0.,50.);
+}
+
+//_________________________________________________________________________
+void AliTOFtrackerV1::SaveCheckHists() {
+
+ //write histos for Digits/Reco QA and Calibration
+
+ TDirectory *dir = gDirectory;
+ TFile *logFile = 0;
+ TFile *logFileTOF = 0;
+
+ TSeqCollection *list = gROOT->GetListOfFiles();
+ int n = list->GetEntries();
+ for(int i=0; i<n; i++) {
+ logFile = (TFile*)list->At(i);
+ if (strstr(logFile->GetName(), "AliESDs.root")) break;
+ }
+
+ Bool_t isThere=kFALSE;
+ for(int i=0; i<n; i++) {
+ logFileTOF = (TFile*)list->At(i);
+ if (strstr(logFileTOF->GetName(), "TOFQA.root")){
+ isThere=kTRUE;
+ break;
+ }
+ }
+
+ logFile->cd();
+ fHDigClusMap->Write(fHDigClusMap->GetName(), TObject::kOverwrite);
+ fHDigNClus->Write(fHDigNClus->GetName(), TObject::kOverwrite);
+ fHDigClusTime->Write(fHDigClusTime->GetName(), TObject::kOverwrite);
+ fHDigClusToT->Write(fHDigClusToT->GetName(), TObject::kOverwrite);
+ fHRecNClus->Write(fHRecNClus->GetName(), TObject::kOverwrite);
+ fHRecChi2->Write(fHRecChi2->GetName(), TObject::kOverwrite);
+ fHRecDistZ->Write(fHRecDistZ->GetName(), TObject::kOverwrite);
+ fHRecSigYVsP->Write(fHRecSigYVsP->GetName(), TObject::kOverwrite);
+ fHRecSigZVsP->Write(fHRecSigZVsP->GetName(), TObject::kOverwrite);
+ fHRecSigYVsPWin->Write(fHRecSigYVsPWin->GetName(), TObject::kOverwrite);
+ fHRecSigZVsPWin->Write(fHRecSigZVsPWin->GetName(), TObject::kOverwrite);
+ logFile->Flush();
+
+ if(!isThere)logFileTOF = new TFile( "TOFQA.root","RECREATE");
+ logFileTOF->cd();
+ fHDigClusMap->Write(fHDigClusMap->GetName(), TObject::kOverwrite);
+ fHDigNClus->Write(fHDigNClus->GetName(), TObject::kOverwrite);
+ fHDigClusTime->Write(fHDigClusTime->GetName(), TObject::kOverwrite);
+ fHDigClusToT->Write(fHDigClusToT->GetName(), TObject::kOverwrite);
+ fHRecNClus->Write(fHRecNClus->GetName(), TObject::kOverwrite);
+ fHRecChi2->Write(fHRecChi2->GetName(), TObject::kOverwrite);
+ fHRecDistZ->Write(fHRecDistZ->GetName(), TObject::kOverwrite);
+ fHRecSigYVsP->Write(fHRecSigYVsP->GetName(), TObject::kOverwrite);
+ fHRecSigZVsP->Write(fHRecSigZVsP->GetName(), TObject::kOverwrite);
+ fHRecSigYVsPWin->Write(fHRecSigYVsPWin->GetName(), TObject::kOverwrite);
+ fHRecSigZVsPWin->Write(fHRecSigZVsPWin->GetName(), TObject::kOverwrite);
+ logFileTOF->Flush();
+
+ dir->cd();
+ }
+//_________________________________________________________________________
+Float_t AliTOFtrackerV1::CorrectTimeWalk( Float_t dist, Float_t tof) {
+
+ //dummy, for the moment
+ Float_t tofcorr=0.;
+ if(dist<fGeom->ZPad()*0.5){
+ tofcorr=tof;
+ //place here the actual correction
+ }else{
+ tofcorr=tof;
+ }
+ return tofcorr;
+}
+//_________________________________________________________________________
+Float_t AliTOFtrackerV1::GetTimeZerofromT0(AliESDEvent *event) const {
+
+ //Returns TimeZero as measured by T0 detector
+
+ return event->GetT0();
+}
+//_________________________________________________________________________
+Float_t AliTOFtrackerV1::GetTimeZerofromTOF(AliESDEvent * /*event*/) const {
+
+ //dummy, for the moment. T0 algorithm using tracks on TOF
+ {
+ //place T0 algo here...
+ }
+ return 0.;
+}
git://git.uio.no / u / mrichter / AliRoot.git / commitdiff