#include "AliTRDgeometry.h"
#include "AliTRDparameter.h"
+#include "AliTRDpadPlane.h"
#include "AliTRDgeometryDetail.h"
-#include "AliTRDgeometryHole.h"
#include "AliTRDcluster.h"
#include "AliTRDtrack.h"
-#include "AliTRDPartID.h"
-#include "../TPC/AliTPCtrack.h"
+#include "AliESD.h"
+#include "TTreeStream.h"
+#include "TGraph.h"
#include "AliTRDtracker.h"
+//
ClassImp(AliTRDtracker)
const Double_t AliTRDtracker::fgkMaxChi2 = 12.;
+// const Double_t AliTRDtracker::fgkOffset = -0.012;
+// const Double_t AliTRDtracker::fgkOffsetX = 0.35;
+// const Double_t AliTRDtracker::fgkCoef = 0.00;
+// const Double_t AliTRDtracker::fgkMean = 8.;
+// const Double_t AliTRDtracker::fgkDriftCorrection = 1.07;
+// const Double_t AliTRDtracker::fgkExB = 0.072;
+
+ const Double_t AliTRDtracker::fgkOffset = -0.015;
+const Double_t AliTRDtracker::fgkOffsetX = 0.26; // "time offset"
+ const Double_t AliTRDtracker::fgkCoef = 0.0096; // angular shift
+ const Double_t AliTRDtracker::fgkMean = 0.;
+ const Double_t AliTRDtracker::fgkDriftCorrection = 1.04; // drift coefficient correction
+ const Double_t AliTRDtracker::fgkExB = 0.072; // ExB angle - for error parameterization
+
+
+// poscorrection = fgkCoef*(GetLocalTimeBin() - fgkMean)+fgkOffset;
+
const Int_t AliTRDtracker::fgkFirstPlane = 5;
const Int_t AliTRDtracker::fgkLastPlane = 17;
-
//____________________________________________________________________
AliTRDtracker::AliTRDtracker():AliTracker(),
fGeom(0),
fAddTRDseeds(kFALSE),
fNoTilt(kFALSE)
{
+ // Default constructor
+
for(Int_t i=0;i<kTrackingSectors;i++) fTrSec[i]=0;
for(Int_t j=0;j<5;j++)
for(Int_t k=0;k<18;k++) fHoles[j][k]=kFALSE;
+ fDebugStreamer = 0;
}
//____________________________________________________________________
AliTRDtracker::AliTRDtracker(const TFile *geomfile):AliTracker()
if(fGeom) {
// fTzero = geo->GetT0();
- printf("Found geometry version %d on file \n", fGeom->IsVersion());
+ // printf("Found geometry version %d on file \n", fGeom->IsVersion());
}
else {
printf("AliTRDtracker::AliTRDtracker(): can't find TRD geometry!\n");
//printf("The DETAIL TRD geometry will be used\n");
//fGeom = new AliTRDgeometryDetail();
- fGeom = new AliTRDgeometryHole();
+ fGeom = new AliTRDgeometryDetail();
fGeom->SetPHOShole();
fGeom->SetRICHhole();
}
if (!fPar) {
printf("AliTRDtracker::AliTRDtracker(): can't find TRD parameter!\n");
printf("The DEFAULT TRD parameter will be used\n");
- fPar = new AliTRDparameter();
+ fPar = new AliTRDparameter("Pica","Vyjebana");
}
- fPar->ReInit();
+ fPar = new AliTRDparameter("Pica","Vyjebana");
+ fPar->Init();
savedir->cd();
fHoles[icham][trS]=fGeom->IsHole(0,icham,geomS);
}
}
-
- Float_t tiltAngle = TMath::Abs(fPar->GetTiltingAngle());
+ AliTRDpadPlane *padPlane = fPar->GetPadPlane(0,0);
+ Float_t tiltAngle = TMath::Abs(padPlane->GetTiltingAngle());
+ // Float_t tiltAngle = TMath::Abs(fPar->GetTiltingAngle());
if(tiltAngle < 0.1) {
fNoTilt = kTRUE;
}
Double_t dxAmp = (Double_t) fGeom->CamHght(); // Amplification region
Double_t dxDrift = (Double_t) fGeom->CdrHght(); // Drift region
- Double_t dx = (Double_t) fPar->GetTimeBinSize();
+ Double_t dx = fgkDriftCorrection*(Double_t) fPar->GetDriftVelocity()
+ / fPar->GetSamplingFrequency();
+
Int_t tbAmp = fPar->GetTimeBefore();
Int_t maxAmp = (Int_t) ((dxAmp+0.000001)/dx);
if(kTRUE) maxAmp = 0; // intentional until we change the parameter class
fMaxGap = (Int_t) (fTimeBinsPerPlane * fGeom->Nplan() * fgkSkipDepth);
fVocal = kFALSE;
-
-
- // Barrel Tracks [SR, 03.04.2003]
-
- fBarrelFile = 0;
- fBarrelTree = 0;
- fBarrelArray = 0;
- fBarrelTrack = 0;
+
+ fDebugStreamer = new TTreeSRedirector("TRDdebug.root");
savedir->cd();
}
for(Int_t geomS = 0; geomS < kTrackingSectors; geomS++) {
delete fTrSec[geomS];
}
-}
-
-//_____________________________________________________________________
-
-void AliTRDtracker::SetBarrelTree(const char *mode) {
- //
- //
- //
-
- if (!IsStoringBarrel()) return;
-
- TDirectory *sav = gDirectory;
- if (!fBarrelFile) fBarrelFile = new TFile("AliBarrelTracks.root", "UPDATE");
-
- char buff[40];
- sprintf(buff, "BarrelTRD_%d_%s", GetEventNumber(), mode);
-
- fBarrelFile->cd();
- fBarrelTree = new TTree(buff, "Barrel TPC tracks");
-
- Int_t nRefs = fgkLastPlane - fgkFirstPlane + 1;
-
- if (!fBarrelArray) fBarrelArray = new TClonesArray("AliBarrelTrack", nRefs);
- for(Int_t i=0; i<nRefs; i++) new((*fBarrelArray)[i]) AliBarrelTrack();
-
- fBarrelTree->Branch("tracks", &fBarrelArray);
- sav->cd();
-}
-
-//_____________________________________________________________________
-
-void AliTRDtracker::StoreBarrelTrack(AliTRDtrack *ps, Int_t refPlane, Int_t isIn) {
- //
- //
- //
-
- if (!IsStoringBarrel()) return;
-
- static Int_t nClusters;
- static Int_t nWrong;
- static Double_t chi2;
- static Int_t index;
- static Bool_t wasLast = kTRUE;
-
- Int_t newClusters, newWrong;
- Double_t newChi2;
-
- if (wasLast) {
-
- fBarrelArray->Clear();
- nClusters = nWrong = 0;
- chi2 = 0.0;
- index = 0;
- wasLast = kFALSE;
+ if (fDebugStreamer) {
+ //fDebugStreamer->Close();
+ delete fDebugStreamer;
}
-
- fBarrelTrack = (AliBarrelTrack*)(*fBarrelArray)[index++];
- ps->GetBarrelTrack(fBarrelTrack);
-
- newClusters = ps->GetNumberOfClusters() - nClusters;
- newWrong = ps->GetNWrong() - nWrong;
- newChi2 = ps->GetChi2() - chi2;
-
- nClusters = ps->GetNumberOfClusters();
- nWrong = ps->GetNWrong();
- chi2 = ps->GetChi2();
-
- if (refPlane != fgkLastPlane) {
- fBarrelTrack->SetNClusters(newClusters, newChi2);
- fBarrelTrack->SetNWrongClusters(newWrong);
- } else {
- wasLast = kTRUE;
- }
-
- fBarrelTrack->SetRefPlane(refPlane, isIn);
-}
+}
//_____________________________________________________________________
}
-AliTRDcluster * AliTRDtracker::GetCluster(AliTRDtrack * track, Int_t plane, Int_t timebin){
+AliTRDcluster * AliTRDtracker::GetCluster(AliTRDtrack * track, Int_t plane, Int_t timebin, UInt_t &index){
//
//try to find cluster in the backup list
//
Int_t iplane = fGeom->GetPlane(cli->GetDetector());
if (iplane==plane) {
cl = cli;
+ index = indexes[i];
break;
}
}
}
return lastplane;
}
-//___________________________________________________________________
-Int_t AliTRDtracker::Clusters2Tracks(const TFile *inp, TFile *out)
-{
- //
- // Finds tracks within the TRD. File <inp> is expected to contain seeds
- // at the outer part of the TRD. If <inp> is NULL, the seeds
- // are found within the TRD if fAddTRDseeds is TRUE.
- // The tracks are propagated to the innermost time bin
- // of the TRD and stored in file <out>.
- //
-
- LoadEvent();
-
- TDirectory *savedir=gDirectory;
-
- char tname[100];
-
- if (!out->IsOpen()) {
- cerr<<"AliTRDtracker::Clusters2Tracks(): output file is not open !\n";
- return 1;
- }
-
- sprintf(tname,"seedTRDtoTPC_%d",GetEventNumber());
- TTree tpcTree(tname,"Tree with seeds from TRD at outer TPC pad row");
- AliTPCtrack *iotrack=0;
- tpcTree.Branch("tracks","AliTPCtrack",&iotrack,32000,0);
-
- sprintf(tname,"TreeT%d_TRD",GetEventNumber());
- TTree trdTree(tname,"TRD tracks at inner TRD time bin");
- AliTRDtrack *iotrackTRD=0;
- trdTree.Branch("tracks","AliTRDtrack",&iotrackTRD,32000,0);
-
- Int_t timeBins = fTrSec[0]->GetNumberOfTimeBins();
- Float_t foundMin = fgkMinClustersInTrack * timeBins;
-
- if (inp) {
- TFile *in=(TFile*)inp;
- if (!in->IsOpen()) {
- cerr<<
- "AliTRDtracker::Clusters2Tracks(): file with seeds is not open !\n";
- cerr<<" ... going for seeds finding inside the TRD\n";
- }
- else {
- in->cd();
- sprintf(tname,"TRDb_%d",GetEventNumber());
- TTree *seedTree=(TTree*)in->Get(tname);
- if (!seedTree) {
- cerr<<"AliTRDtracker::Clusters2Tracks(): ";
- cerr<<"can't get a tree with track seeds !\n";
- return 3;
- }
- AliTRDtrack *seed=new AliTRDtrack;
- seedTree->SetBranchAddress("tracks",&seed);
-
- Int_t n=(Int_t)seedTree->GetEntries();
- for (Int_t i=0; i<n; i++) {
- seedTree->GetEvent(i);
- seed->ResetCovariance();
- AliTRDtrack *tr = new AliTRDtrack(*seed,seed->GetAlpha());
- fSeeds->AddLast(tr);
- fNseeds++;
- }
- delete seed;
- delete seedTree;
- }
- }
-
- out->cd();
-
-
- // find tracks from loaded seeds
-
- Int_t nseed=fSeeds->GetEntriesFast();
- Int_t i, found = 0;
- Int_t innerTB = fTrSec[0]->GetInnerTimeBin();
-
- for (i=0; i<nseed; i++) {
- AliTRDtrack *pt=(AliTRDtrack*)fSeeds->UncheckedAt(i), &t=*pt;
- FollowProlongation(t, innerTB);
- if (t.GetNumberOfClusters() >= foundMin) {
- UseClusters(&t);
- CookLabel(pt, 1-fgkLabelFraction);
- // t.CookdEdx();
- }
- iotrackTRD = pt;
- trdTree.Fill();
- found++;
-// cout<<found<<'\r';
-
- if(PropagateToTPC(t)) {
- AliTPCtrack *tpc = new AliTPCtrack(*pt,pt->GetAlpha());
- iotrack = tpc;
- tpcTree.Fill();
- delete tpc;
- }
- delete fSeeds->RemoveAt(i);
- fNseeds--;
- }
-
- cout<<"Number of loaded seeds: "<<nseed<<endl;
- cout<<"Number of found tracks from loaded seeds: "<<found<<endl;
-
- // after tracks from loaded seeds are found and the corresponding
- // clusters are used, look for additional seeds from TRD
-
- if(fAddTRDseeds) {
- // Find tracks for the seeds in the TRD
- Int_t timeBins = fTrSec[0]->GetNumberOfTimeBins();
-
- Int_t nSteps = (Int_t) (fgkSeedDepth / fgkSeedStep);
- Int_t gap = (Int_t) (timeBins * fgkSeedGap);
- Int_t step = (Int_t) (timeBins * fgkSeedStep);
-
- // make a first turn with tight cut on initial curvature
- for(Int_t turn = 1; turn <= 2; turn++) {
- if(turn == 2) {
- nSteps = (Int_t) (fgkSeedDepth / (3*fgkSeedStep));
- step = (Int_t) (timeBins * (3*fgkSeedStep));
- }
- for(Int_t i=0; i<nSteps; i++) {
- Int_t outer=timeBins-1-i*step;
- Int_t inner=outer-gap;
-
- nseed=fSeeds->GetEntriesFast();
-
- MakeSeeds(inner, outer, turn);
-
- nseed=fSeeds->GetEntriesFast();
- printf("\n turn %d, step %d: number of seeds for TRD inward %d\n",
- turn, i, nseed);
-
- for (Int_t i=0; i<nseed; i++) {
- AliTRDtrack *pt=(AliTRDtrack*)fSeeds->UncheckedAt(i), &t=*pt;
- FollowProlongation(t,innerTB);
- if (t.GetNumberOfClusters() >= foundMin) {
- UseClusters(&t);
- CookLabel(pt, 1-fgkLabelFraction);
- t.CookdEdx();
- found++;
-// cout<<found<<'\r';
- iotrackTRD = pt;
- trdTree.Fill();
- if(PropagateToTPC(t)) {
- AliTPCtrack *tpc = new AliTPCtrack(*pt,pt->GetAlpha());
- iotrack = tpc;
- tpcTree.Fill();
- delete tpc;
- }
- }
- delete fSeeds->RemoveAt(i);
- fNseeds--;
- }
- }
- }
- }
- tpcTree.Write();
- trdTree.Write();
-
- cout<<"Total number of found tracks: "<<found<<endl;
-
- UnloadEvent();
-
- savedir->cd();
-
- return 0;
-}
-
//___________________________________________________________________
Int_t AliTRDtracker::Clusters2Tracks(AliESD* event)
{
if ( (status & AliESDtrack::kTRDout ) == 0 ) continue;
if ( (status & AliESDtrack::kTRDin) != 0 ) continue;
nseed++;
-
+
AliTRDtrack* seed2 = new AliTRDtrack(*seed);
//seed2->ResetCovariance();
AliTRDtrack *pt = new AliTRDtrack(*seed2,seed2->GetAlpha());
MakeSeeds(inner, outer, turn);
nseed=fSeeds->GetEntriesFast();
- printf("\n turn %d, step %d: number of seeds for TRD inward %d\n",
- turn, i, nseed);
+ // printf("\n turn %d, step %d: number of seeds for TRD inward %d\n",
+ // turn, i, nseed);
for (Int_t i=0; i<nseed; i++) {
AliTRDtrack *pt=(AliTRDtrack*)fSeeds->UncheckedAt(i), &t=*pt;
AliESDtrack track;
track.UpdateTrackParams(pt,AliESDtrack::kTRDin);
event->AddTrack(&track);
+ // track.SetTRDtrack(new AliTRDtrack(*pt));
}
}
delete fSeeds->RemoveAt(i);
-//_____________________________________________________________________________
-Int_t AliTRDtracker::PropagateBack(const TFile *inp, TFile *out) {
- //
- // Reads seeds from file <inp>. The seeds are AliTPCtrack's found and
- // backpropagated by the TPC tracker. Each seed is first propagated
- // to the TRD, and then its prolongation is searched in the TRD.
- // If sufficiently long continuation of the track is found in the TRD
- // the track is updated, otherwise it's stored as originaly defined
- // by the TPC tracker.
- //
-
- LoadEvent();
-
- TDirectory *savedir=gDirectory;
-
- TFile *in=(TFile*)inp;
-
- if (!in->IsOpen()) {
- cerr<<"AliTRDtracker::PropagateBack(): ";
- cerr<<"file with back propagated TPC tracks is not open !\n";
- return 1;
- }
-
- if (!out->IsOpen()) {
- cerr<<"AliTRDtracker::PropagateBack(): ";
- cerr<<"file for back propagated TRD tracks is not open !\n";
- return 2;
- }
-
- in->cd();
- char tname[100];
- sprintf(tname,"seedsTPCtoTRD_%d",GetEventNumber());
- TTree *seedTree=(TTree*)in->Get(tname);
- if (!seedTree) {
- cerr<<"AliTRDtracker::PropagateBack(): ";
- cerr<<"can't get a tree with seeds from TPC !\n";
- cerr<<"check if your version of TPC tracker creates tree "<<tname<<"\n";
- return 3;
- }
-
- AliTPCtrack *seed=new AliTPCtrack;
- seedTree->SetBranchAddress("tracks",&seed);
-
- Int_t n=(Int_t)seedTree->GetEntries();
- for (Int_t i=0; i<n; i++) {
- seedTree->GetEvent(i);
- Int_t lbl = seed->GetLabel();
- AliTRDtrack *tr = new AliTRDtrack(*seed,seed->GetAlpha());
- tr->SetSeedLabel(lbl);
- fSeeds->AddLast(tr);
- fNseeds++;
- }
-
- delete seed;
- delete seedTree;
-
- out->cd();
-
- AliTPCtrack *otrack=0;
-
- sprintf(tname,"seedsTRDtoTOF1_%d",GetEventNumber());
- TTree tofTree1(tname,"Tracks back propagated through TPC and TRD");
- tofTree1.Branch("tracks","AliTPCtrack",&otrack,32000,0);
-
- sprintf(tname,"seedsTRDtoTOF2_%d",GetEventNumber());
- TTree tofTree2(tname,"Tracks back propagated through TPC and TRD");
- tofTree2.Branch("tracks","AliTPCtrack",&otrack,32000,0);
-
- sprintf(tname,"seedsTRDtoPHOS_%d",GetEventNumber());
- TTree phosTree(tname,"Tracks back propagated through TPC and TRD");
- phosTree.Branch("tracks","AliTPCtrack",&otrack,32000,0);
-
- sprintf(tname,"seedsTRDtoRICH_%d",GetEventNumber());
- TTree richTree(tname,"Tracks back propagated through TPC and TRD");
- richTree.Branch("tracks","AliTPCtrack",&otrack,32000,0);
-
- sprintf(tname,"TRDb_%d",GetEventNumber());
- TTree trdTree(tname,"Back propagated TRD tracks at outer TRD time bin");
- AliTRDtrack *otrackTRD=0;
- trdTree.Branch("tracks","AliTRDtrack",&otrackTRD,32000,0);
-
- if (IsStoringBarrel()) SetBarrelTree("back");
- out->cd();
-
- Int_t found=0;
- Int_t nseed=fSeeds->GetEntriesFast();
-
- // Float_t foundMin = fgkMinClustersInTrack * fTimeBinsPerPlane * fGeom->Nplan();
- Float_t foundMin = 40;
-
- Int_t outermostTB = fTrSec[0]->GetOuterTimeBin();
-
- for (Int_t i=0; i<nseed; i++) {
-
- AliTRDtrack *ps=(AliTRDtrack*)fSeeds->UncheckedAt(i), &s=*ps;
- Int_t expectedClr = FollowBackProlongation(s);
-
- if (IsStoringBarrel()) {
- StoreBarrelTrack(ps, fgkLastPlane, kTrackBack);
- fBarrelTree->Fill();
- }
-
- Int_t foundClr = s.GetNumberOfClusters();
- Int_t lastTB = fTrSec[0]->GetLayerNumber(s.GetX());
-
- // printf("seed %d: found %d out of %d expected clusters, Min is %f\n",
- // i, foundClr, expectedClr, foundMin);
-
- if (foundClr >= foundMin) {
- if(foundClr >= 2) {
- s.CookdEdx();
- CookLabel(ps, 1-fgkLabelFraction);
- UseClusters(ps);
- }
-
- // Propagate to outer reference plane [SR, GSI, 18.02.2003]
- ps->PropagateTo(364.8);
- otrackTRD=ps;
- trdTree.Fill();
- found++;
-// cout<<found<<'\r';
- }
-
- if(((expectedClr < 10) && (lastTB == outermostTB)) ||
- ((expectedClr >= 10) &&
- (((Float_t) foundClr) / ((Float_t) expectedClr) >=
- fgkMinFractionOfFoundClusters) && (lastTB == outermostTB))) {
-
- Double_t xTOF = 375.5;
-
- if(PropagateToOuterPlane(s,xTOF)) {
- AliTPCtrack *pt = new AliTPCtrack(*ps,ps->GetAlpha());
- otrack = pt;
- tofTree1.Fill();
- delete pt;
-
- xTOF = 381.5;
-
- if(PropagateToOuterPlane(s,xTOF)) {
- AliTPCtrack *pt = new AliTPCtrack(*ps,ps->GetAlpha());
- otrack = pt;
- tofTree2.Fill();
- delete pt;
-
- Double_t xPHOS = 460.;
-
- if(PropagateToOuterPlane(s,xPHOS)) {
- AliTPCtrack *pt = new AliTPCtrack(*ps,ps->GetAlpha());
- otrack = pt;
- phosTree.Fill();
- delete pt;
-
- Double_t xRICH = 490+1.267;
-
- if(PropagateToOuterPlane(s,xRICH)) {
- AliTPCtrack *pt = new AliTPCtrack(*ps,ps->GetAlpha());
- otrack = pt;
- richTree.Fill();
- delete pt;
- }
- }
- }
- }
- }
- }
-
-
- out->cd();
- tofTree1.Write();
- tofTree2.Write();
- phosTree.Write();
- richTree.Write();
- trdTree.Write();
-
- if (IsStoringBarrel()) { // [SR, 03.04.2003]
- fBarrelFile->cd();
- fBarrelTree->Write();
- fBarrelFile->Flush();
- }
-
- savedir->cd();
- cerr<<"Number of seeds: "<<nseed<<endl;
- cerr<<"Number of back propagated TRD tracks: "<<found<<endl;
-
- UnloadEvent();
-
- return 0;
-
-}
-
//_____________________________________________________________________________
Int_t AliTRDtracker::PropagateBack(AliESD* event) {
//
//
Int_t found=0;
- Float_t foundMin = 40;
-
+ Float_t foundMin = 20;
Int_t n = event->GetNumberOfTracks();
+ //
+ //Sort tracks
+ Float_t *quality =new Float_t[n];
+ Int_t *index =new Int_t[n];
for (Int_t i=0; i<n; i++) {
AliESDtrack* seed=event->GetTrack(i);
+ Double_t covariance[15];
+ seed->GetExternalCovariance(covariance);
+ quality[i] = covariance[0]+covariance[2];
+ }
+ TMath::Sort(n,quality,index,kFALSE);
+ //
+ for (Int_t i=0; i<n; i++) {
+ // AliESDtrack* seed=event->GetTrack(i);
+ AliESDtrack* seed=event->GetTrack(index[i]);
+
ULong_t status=seed->GetStatus();
if ( (status & AliESDtrack::kTPCout ) == 0 ) continue;
if ( (status & AliESDtrack::kTRDout) != 0 ) continue;
Int_t lbl = seed->GetLabel();
AliTRDtrack *track = new AliTRDtrack(*seed);
track->SetSeedLabel(lbl);
+ seed->UpdateTrackParams(track, AliESDtrack::kTRDbackup); //make backup
fNseeds++;
-
+ Float_t p4 = track->GetC();
+ //
Int_t expectedClr = FollowBackProlongation(*track);
+ /*
+ // only debug purpose
if (track->GetNumberOfClusters()<expectedClr/3){
AliTRDtrack *track1 = new AliTRDtrack(*seed);
track1->SetSeedLabel(lbl);
delete track1;
delete track2;
}
-
- Int_t foundClr = track->GetNumberOfClusters();
- if (foundClr >= foundMin) {
- if(foundClr >= 2) {
+ */
+ if (TMath::Abs(track->GetC()-p4)/TMath::Abs(p4)<0.2 || TMath::Abs(track->GetPt())>0.8 ) {
+ //
+ //make backup for back propagation
+ //
+ Int_t foundClr = track->GetNumberOfClusters();
+ if (foundClr >= foundMin) {
track->CookdEdx();
-// CookLabel(track, 1-fgkLabelFraction);
- UseClusters(track);
+ CookLabel(track, 1-fgkLabelFraction);
+ if(track->GetChi2()/track->GetNumberOfClusters()<4) { // sign only gold tracks
+ if (seed->GetKinkIndex(0)==0&&TMath::Abs(track->GetPt())<1.5 ) UseClusters(track);
+ }
+ Bool_t isGold = kFALSE;
+
+ if (track->GetChi2()/track->GetNumberOfClusters()<5) { //full gold track
+ // seed->UpdateTrackParams(track, AliESDtrack::kTRDbackup);
+ if (track->GetBackupTrack()) seed->UpdateTrackParams(track->GetBackupTrack(), AliESDtrack::kTRDbackup);
+ isGold = kTRUE;
+ }
+ if (!isGold && track->GetNCross()==0&&track->GetChi2()/track->GetNumberOfClusters()<7){ //almost gold track
+ // seed->UpdateTrackParams(track, AliESDtrack::kTRDbackup);
+ if (track->GetBackupTrack()) seed->UpdateTrackParams(track->GetBackupTrack(), AliESDtrack::kTRDbackup);
+ isGold = kTRUE;
+ }
+ if (!isGold && track->GetBackupTrack()){
+ if (track->GetBackupTrack()->GetNumberOfClusters()>foundMin&&
+ (track->GetBackupTrack()->GetChi2()/(track->GetBackupTrack()->GetNumberOfClusters()+1))<7){
+ seed->UpdateTrackParams(track->GetBackupTrack(), AliESDtrack::kTRDbackup);
+ isGold = kTRUE;
+ }
+ }
+ if (track->StatusForTOF()>0 &&track->fNCross==0 && Float_t(track->fN)/Float_t(track->fNExpected)>0.4){
+ seed->UpdateTrackParams(track, AliESDtrack::kTRDbackup);
+ }
}
-
- // Propagate to outer reference plane [SR, GSI, 18.02.2003]
-// track->PropagateTo(364.8); why?
-
- //seed->UpdateTrackParams(track, AliESDtrack::kTRDout);
- //found++;
}
-
+ //
//Propagation to the TOF (I.Belikov)
if (track->GetStop()==kFALSE){
- Double_t xTOF = 375.5;
- PropagateToOuterPlane(*track,xTOF);
- Double_t xtof=378.;
+ Double_t xtof=371.;
Double_t c2=track->GetC()*xtof - track->GetEta();
- if (TMath::Abs(c2)>=0.9999999) continue;
-
+ if (TMath::Abs(c2)>=0.99) {
+ delete track;
+ continue;
+ }
+ Double_t xTOF0 = 365. ;
+ PropagateToOuterPlane(*track,xTOF0);
+ //
+ //energy losses taken to the account - check one more time
+ c2=track->GetC()*xtof - track->GetEta();
+ if (TMath::Abs(c2)>=0.99) {
+ delete track;
+ continue;
+ }
+
+ //
Double_t ymax=xtof*TMath::Tan(0.5*AliTRDgeometry::GetAlpha());
Double_t y=track->GetYat(xtof);
if (y > ymax) {
- if (!track->Rotate(AliTRDgeometry::GetAlpha())) return 1;
+ if (!track->Rotate(AliTRDgeometry::GetAlpha())) {
+ delete track;
+ continue;
+ }
} else if (y <-ymax) {
- if (!track->Rotate(-AliTRDgeometry::GetAlpha())) return 1;
+ if (!track->Rotate(-AliTRDgeometry::GetAlpha())) {
+ delete track;
+ continue;
+ }
}
if (track->PropagateTo(xtof)) {
- seed->UpdateTrackParams(track, AliESDtrack::kTRDout);
+ seed->UpdateTrackParams(track, AliESDtrack::kTRDout);
+ for (Int_t i=0;i<kNPlane;i++) {
+ seed->SetTRDsignals(track->GetPIDsignals(i),i);
+ seed->SetTRDTimBin(track->GetPIDTimBin(i),i);
+ }
+ // seed->SetTRDtrack(new AliTRDtrack(*track));
if (track->GetNumberOfClusters()>foundMin) found++;
}
}else{
if (track->GetNumberOfClusters()>15&&track->GetNumberOfClusters()>0.5*expectedClr){
seed->UpdateTrackParams(track, AliESDtrack::kTRDout);
- seed->UpdateTrackParams(track, AliESDtrack::kTRDStop);
+ //seed->SetStatus(AliESDtrack::kTRDStop);
+ for (Int_t i=0;i<kNPlane;i++) {
+ seed->SetTRDsignals(track->GetPIDsignals(i),i);
+ seed->SetTRDTimBin(track->GetPIDTimBin(i),i);
+ }
+ //seed->SetTRDtrack(new AliTRDtrack(*track));
found++;
}
}
-
-
+ seed->SetTRDQuality(track->StatusForTOF());
+ //
+ // Debug part of tracking
+ TTreeSRedirector& cstream = *fDebugStreamer;
+ Int_t eventNr = event->GetEventNumber();
+ if (track->GetBackupTrack()){
+ cstream<<"Tracks"<<
+ "EventNr="<<eventNr<<
+ "ESD.="<<seed<<
+ "trd.="<<track<<
+ "trdback.="<<track->GetBackupTrack()<<
+ "\n";
+ }else{
+ cstream<<"Tracks"<<
+ "EventNr="<<eventNr<<
+ "ESD.="<<seed<<
+ "trd.="<<track<<
+ "trdback.="<<track<<
+ "\n";
+ }
+ delete track;
+ //
//End of propagation to the TOF
//if (foundClr>foundMin)
// seed->UpdateTrackParams(track, AliESDtrack::kTRDout);
cerr<<"Number of seeds: "<<fNseeds<<endl;
cerr<<"Number of back propagated TRD tracks: "<<found<<endl;
- fSeeds->Clear(); fNseeds=0;
+ // MakeSeedsMI(3,5); //new seeding
+
+ fSeeds->Clear(); fNseeds=0;
+ delete [] index;
+ delete [] quality;
+
return 0;
}
Int_t nseed = 0;
Int_t found = 0;
Int_t innerTB = fTrSec[0]->GetInnerTimeBin();
+ AliTRDtrack seed2;
Int_t n = event->GetNumberOfTracks();
for (Int_t i=0; i<n; i++) {
AliESDtrack* seed=event->GetTrack(i);
+ new(&seed2) AliTRDtrack(*seed);
+ if (seed2.GetX()<270){
+ seed->UpdateTrackParams(&seed2, AliESDtrack::kTRDbackup); // backup TPC track - only update
+ continue;
+ }
+
ULong_t status=seed->GetStatus();
- if ( (status & AliESDtrack::kTRDout ) == 0 ) continue;
- if ( (status & AliESDtrack::kTRDin) != 0 ) continue;
- nseed++;
+ if ( (status & AliESDtrack::kTRDout ) == 0 ) {
+ continue;
+ }
+ if ( (status & AliESDtrack::kTRDin) != 0 ) {
+ continue;
+ }
+ nseed++;
+// if (1/seed2.Get1Pt()>1.5&& seed2.GetX()>260.) {
+// Double_t oldx = seed2.GetX();
+// seed2.PropagateTo(500.);
+// seed2.ResetCovariance(1.);
+// seed2.PropagateTo(oldx);
+// }
+// else{
+// seed2.ResetCovariance(5.);
+// }
+
+ AliTRDtrack *pt = new AliTRDtrack(seed2,seed2.GetAlpha());
+ UInt_t * indexes2 = seed2.GetIndexes();
+ for (Int_t i=0;i<kNPlane;i++) {
+ pt->SetPIDsignals(seed2.GetPIDsignals(i),i);
+ pt->SetPIDTimBin(seed2.GetPIDTimBin(i),i);
+ }
- AliTRDtrack* seed2 = new AliTRDtrack(*seed);
- seed2->ResetCovariance(5.);
- AliTRDtrack *pt = new AliTRDtrack(*seed2,seed2->GetAlpha());
- UInt_t * indexes2 = seed2->GetIndexes();
UInt_t * indexes3 = pt->GetBackupIndexes();
for (Int_t i=0;i<200;i++) {
if (indexes2[i]==0) break;
//AliTRDtrack *pt = seed2;
AliTRDtrack &t=*pt;
FollowProlongation(t, innerTB);
-
- if (t.GetNumberOfClusters()<seed->GetTRDclusters(indexes3)*0.5){
- // debug - why we dont go back?
- AliTRDtrack *pt2 = new AliTRDtrack(*seed2,seed2->GetAlpha());
- UInt_t * indexes2 = seed2->GetIndexes();
- UInt_t * indexes3 = pt2->GetBackupIndexes();
- for (Int_t i=0;i<200;i++) {
- if (indexes2[i]==0) break;
- indexes3[i] = indexes2[i];
- }
- FollowProlongation(*pt2, innerTB);
- delete pt2;
- }
-
if (t.GetNumberOfClusters() >= foundMin) {
// UseClusters(&t);
//CookLabel(pt, 1-fgkLabelFraction);
- // t.CookdEdx();
+ t.CookdEdx();
+ CookdEdxTimBin(t);
}
found++;
// cout<<found<<'\r';
if(PropagateToTPC(t)) {
seed->UpdateTrackParams(pt, AliESDtrack::kTRDrefit);
+ for (Int_t i=0;i<kNPlane;i++) {
+ seed->SetTRDsignals(pt->GetPIDsignals(i),i);
+ seed->SetTRDTimBin(pt->GetPIDTimBin(i),i);
+ }
+ }else{
+ //if not prolongation to TPC - propagate without update
+ AliTRDtrack* seed2 = new AliTRDtrack(*seed);
+ seed2->ResetCovariance(5.);
+ AliTRDtrack *pt2 = new AliTRDtrack(*seed2,seed2->GetAlpha());
+ delete seed2;
+ if (PropagateToTPC(*pt2)) {
+ pt2->CookdEdx(0.,1.);
+ CookdEdxTimBin(*pt2);
+ seed->UpdateTrackParams(pt2, AliESDtrack::kTRDrefit);
+ for (Int_t i=0;i<kNPlane;i++) {
+ seed->SetTRDsignals(pt2->GetPIDsignals(i),i);
+ seed->SetTRDTimBin(pt2->GetPIDTimBin(i),i);
+ }
+ }
+ delete pt2;
}
- delete seed2;
delete pt;
- }
+ }
cout<<"Number of loaded seeds: "<<nseed<<endl;
cout<<"Number of found tracks from loaded seeds: "<<found<<endl;
wZwindow = TMath::Sqrt(2.25 * 12 * sz2);
// Find the closest correct cluster for debugging purposes
- if (timeBin) {
+ if (timeBin&&fVocal) {
Float_t minDY = 1000000;
for (Int_t i=0; i<timeBin; i++) {
AliTRDcluster* c=(AliTRDcluster*)(timeBin[i]);
Int_t plane = fGeom->GetPlane(cl0->GetDetector());
if (plane>lastplane) continue;
Int_t timebin = cl0->GetLocalTimeBin();
- AliTRDcluster * cl2= GetCluster(&t,plane, timebin);
+ AliTRDcluster * cl2= GetCluster(&t,plane, timebin,index);
if (cl2) {
cl =cl2;
Double_t h01 = GetTiltFactor(cl);
continue;
}
-
- if(!cl){
-
- for (Int_t i=timeBin.Find(y-road); i<timeBin; i++) {
- AliTRDcluster* c=(AliTRDcluster*)(timeBin[i]);
- if (c->GetY() > y+road) break;
- if (c->IsUsed() > 0) continue;
- if((c->GetZ()-z)*(c->GetZ()-z) > 3 * sz2) continue;
-
- Double_t h01 = GetTiltFactor(c);
- Double_t chi2=t.GetPredictedChi2(c,h01);
-
- if (chi2 > maxChi2) continue;
- maxChi2=chi2;
- cl=c;
- index=timeBin.GetIndex(i);
- }
- }
-
- if(!cl) {
-
- for (Int_t i=timeBin.Find(y-road); i<timeBin; i++) {
- AliTRDcluster* c=(AliTRDcluster*)(timeBin[i]);
-
- if (c->GetY() > y+road) break;
- if (c->IsUsed() > 0) continue;
- if((c->GetZ()-z)*(c->GetZ()-z) > 12 * sz2) continue;
-
- Double_t h01 = GetTiltFactor(c);
- Double_t chi2=t.GetPredictedChi2(c, h01);
-
- if (chi2 > maxChi2) continue;
- maxChi2=chi2;
- cl=c;
- index=timeBin.GetIndex(i);
- }
- }
if (cl) {
+
wYclosest = cl->GetY();
wZclosest = cl->GetZ();
Double_t h01 = GetTiltFactor(cl);
- t.SetSampledEdx(cl->GetQ()/dx,t.GetNumberOfClusters());
- //printf("Track position\t%f\t%f\t%f\n",t.GetX(),t.GetY(),t.GetZ());
- //printf("Cluster position\t%d\t%f\t%f\n",cl->GetLocalTimeBin(),cl->GetY(),cl->GetZ());
+ if (cl->GetNPads()<5)
+ t.SetSampledEdx(TMath::Abs(cl->GetQ()/dx));
Int_t det = cl->GetDetector();
Int_t plane = fGeom->GetPlane(det);
//if (tryAgain==0) break;
tryAgain--;
}
-
- /*
- if((((Int_t) wTB)%15 == 0) || (((Int_t) wTB)%15 == 14)) {
-
- printf(" %f", wIndex); //1
- printf(" %f", wTB); //2
- printf(" %f", wYrt); //3
- printf(" %f", wYclosest); //4
- printf(" %f", wYcorrect); //5
- printf(" %f", wYwindow); //6
- printf(" %f", wZrt); //7
- printf(" %f", wZclosest); //8
- printf(" %f", wZcorrect); //9
- printf(" %f", wZwindow); //10
- printf(" %f", wPx); //11
- printf(" %f", wPy); //12
- printf(" %f", wPz); //13
- printf(" %f", wSigmaC2*1000000); //14
- printf(" %f", wSigmaTgl2*1000); //15
- printf(" %f", wSigmaY2); //16
- // printf(" %f", wSigmaZ2); //17
- printf(" %f", wChi2); //17
- printf(" %f", wC); //18
- printf("\n");
- }
- */
}
}
}
// layers confirms prolongation if a close cluster is found.
// Returns the number of clusters expected to be found in sensitive layers
- Float_t wIndex, wTB, wChi2;
- Float_t wYrt, wYclosest, wYcorrect, wYwindow;
- Float_t wZrt, wZclosest, wZcorrect, wZwindow;
- Float_t wPx, wPy, wPz, wC;
- Double_t px, py, pz;
- Float_t wSigmaC2, wSigmaTgl2, wSigmaY2, wSigmaZ2;
-
- Int_t trackIndex = t.GetLabel();
Int_t tryAgain=fMaxGap;
Double_t alpha=t.GetAlpha();
TVector2::Phi_0_2pi(alpha);
Int_t s;
+
+ Int_t clusters[1000];
+ for (Int_t i=0;i<1000;i++) clusters[i]=-1;
Int_t outerTB = fTrSec[0]->GetOuterTimeBin();
- Double_t radLength, rho, x, dx, y, ymax = 0, z;
+ //Double_t radLength, rho, x, dx, y, ymax = 0, z;
+ Double_t radLength, rho, x, dx, y, z;
Bool_t lookForCluster;
Int_t expectedNumberOfClusters = 0;
alpha=AliTRDgeometry::GetAlpha(); // note: change in meaning
- Int_t nRefPlane = fgkFirstPlane;
- Bool_t isNewLayer = kFALSE;
-
- Double_t chi2;
- Double_t minDY;
- Int_t zone =-10;
+ // Int_t zone =0;
Int_t nr;
+ Float_t ratio0=0;
+ AliTRDtracklet tracklet;
+ //
for (nr=fTrSec[0]->GetLayerNumber(t.GetX()); nr<outerTB+1; nr++) {
-
+
y = t.GetY();
z = t.GetZ();
-
// first propagate to the outer surface of the current time bin
s = t.GetSector();
z = t.GetZ();
if(!t.PropagateTo(x,radLength,rho)) break;
- // if (!AdjustSector(&t)) break;
//
// MI -fix untill correct material desription will be implemented
//
- Float_t angle = t.GetAlpha(); // MI - if rotation - we go through the material -
- if (!AdjustSector(&t)) break;
- if (TMath::Abs(angle - t.GetAlpha())>0.000001) break; //better to stop track
- Int_t currentzone = fTrSec[s]->GetLayer(nr)->GetZone(z);
- if (currentzone==-10) break; // we are in the frame
- if (currentzone>-10){ // layer knows where we are
- if (zone==-10) zone = currentzone;
- if (zone!=currentzone) break;
- }
+ //Int_t nrotate = t.GetNRotate();
+ if (!AdjustSector(&t)) break;
//
//
- s = t.GetSector();
- if (!t.PropagateTo(x,radLength,rho)) break;
-
y = t.GetY();
z = t.GetZ();
-
- // Barrel Tracks [SR, 04.04.2003]
-
s = t.GetSector();
- if (fTrSec[s]->GetLayer(nr)->IsSensitive() !=
- fTrSec[s]->GetLayer(nr+1)->IsSensitive() ) {
-
-// if (IsStoringBarrel()) StoreBarrelTrack(&t, nRefPlane++, kTrackBack);
- }
-
- if (fTrSec[s]->GetLayer(nr-1)->IsSensitive() &&
- ! fTrSec[s]->GetLayer(nr)->IsSensitive()) {
- isNewLayer = kTRUE;
- } else {isNewLayer = kFALSE;}
-
- y = t.GetY();
- z = t.GetZ();
// now propagate to the middle plane of the next time bin
fTrSec[s]->GetLayer(nr+1)->GetPropagationParameters(y,z,dx,rho,radLength,lookForCluster);
-
+// if (nrotate!=t.GetNRotate()){
+// rho = 1000*2.7; radLength = 24.01; //TEMPORARY - aluminium in between z - will be detected using GeoModeler in future versions
+// }
x = fTrSec[s]->GetLayer(nr+1)->GetX();
- if(!t.PropagateTo(x,radLength,rho)) break;
+ if(!t.PropagateTo(x,radLength,rho)) break;
if (!AdjustSector(&t)) break;
s = t.GetSector();
- if(!t.PropagateTo(x,radLength,rho)) break;
+ // if(!t.PropagateTo(x,radLength,rho)) break;
+
+ if (TMath::Abs(t.GetSnp())>0.95) break;
y = t.GetY();
z = t.GetZ();
- if(fVocal) printf("nr+1=%d, x %f, z %f, y %f, ymax %f\n",nr+1,x,z,y,ymax);
- // printf("label %d, pl %d, lookForCluster %d \n",
- // trackIndex, nr+1, lookForCluster);
-
if(lookForCluster) {
- expectedNumberOfClusters++;
+ if (clusters[nr]==-1) {
+ Float_t ncl = FindClusters(s,nr,nr+30,&t,clusters,tracklet);
+ ratio0 = ncl/Float_t(fTimeBinsPerPlane);
+ Float_t ratio1 = Float_t(t.fN+1)/Float_t(t.fNExpected+1.);
+ if (tracklet.GetChi2()<18.&&ratio0>0.8 && ratio1>0.6 && ratio0+ratio1>1.5 && t.GetNCross()==0 && TMath::Abs(t.GetSnp())<0.85&&t.fN>20){
+ t.MakeBackupTrack(); // make backup of the track until is gold
+ }
+// if (ncl>4){
+// t.PropagateTo(tracklet.GetX());
+// t.UpdateMI(tracklet);
+// nr = fTrSec[0]->GetLayerNumber(t.GetX())+1;
+// continue;
+// }
+ }
- wIndex = (Float_t) t.GetLabel();
- wTB = fTrSec[s]->GetLayer(nr+1)->GetTimeBinIndex();
+ expectedNumberOfClusters++;
+ t.fNExpected++;
+ if (t.fX>345) t.fNExpectedLast++;
AliTRDpropagationLayer& timeBin=*(fTrSec[s]->GetLayer(nr+1));
Double_t sy2=ExpectedSigmaY2(t.GetX(),t.GetTgl(),t.GetPt());
- Double_t sz2=ExpectedSigmaZ2(t.GetX(),t.GetTgl());
- if((t.GetSigmaY2() + sy2) < 0) break;
+ if((t.GetSigmaY2() + sy2) < 0) {
+ printf("problem\n");
+ break;
+ }
Double_t road = 10.*sqrt(t.GetSigmaY2() + sy2);
- Double_t y=t.GetY(), z=t.GetZ();
-
- wYrt = (Float_t) y;
- wZrt = (Float_t) z;
- wYwindow = (Float_t) road;
- t.GetPxPyPz(px,py,pz);
- wPx = (Float_t) px;
- wPy = (Float_t) py;
- wPz = (Float_t) pz;
- wC = (Float_t) t.GetC();
- wSigmaC2 = (Float_t) t.GetSigmaC2();
- wSigmaTgl2 = (Float_t) t.GetSigmaTgl2();
- wSigmaY2 = (Float_t) t.GetSigmaY2();
- wSigmaZ2 = (Float_t) t.GetSigmaZ2();
- wChi2 = -1;
if (road>fgkWideRoad) {
- if (t.GetNumberOfClusters()>4)
- cerr<<t.GetNumberOfClusters()
- <<"FindProlongation warning: Too broad road !\n";
return 0;
}
AliTRDcluster *cl=0;
UInt_t index=0;
-
Double_t maxChi2=fgkMaxChi2;
-
- if (isNewLayer) {
- road = 3 * road;
- //sz2 = 3 * sz2;
- maxChi2 = 10 * fgkMaxChi2;
- }
-
- if (nRefPlane == fgkFirstPlane) maxChi2 = 20 * fgkMaxChi2;
- if (nRefPlane == fgkFirstPlane+2) maxChi2 = 15 * fgkMaxChi2;
- if (t.GetNRotate() > 0) maxChi2 = 3 * maxChi2;
-
- wYclosest = 12345678;
- wYcorrect = 12345678;
- wZclosest = 12345678;
- wZcorrect = 12345678;
- wZwindow = TMath::Sqrt(2.25 * 12 * sz2);
-
- // Find the closest correct cluster for debugging purposes
- if (timeBin) {
- minDY = 1000000;
- for (Int_t i=0; i<timeBin; i++) {
- AliTRDcluster* c=(AliTRDcluster*)(timeBin[i]);
- if((c->GetLabel(0) != trackIndex) &&
- (c->GetLabel(1) != trackIndex) &&
- (c->GetLabel(2) != trackIndex)) continue;
- if(TMath::Abs(c->GetY() - y) > minDY) continue;
- //minDY = TMath::Abs(c->GetY() - y);
- minDY = c->GetY() - y;
- wYcorrect = c->GetY();
- wZcorrect = c->GetZ();
-
- Double_t h01 = GetTiltFactor(c);
- wChi2 = t.GetPredictedChi2(c, h01);
- }
- }
-
// Now go for the real cluster search
if (timeBin) {
-
- for (Int_t i=timeBin.Find(y-road); i<timeBin; i++) {
- AliTRDcluster* c=(AliTRDcluster*)(timeBin[i]);
- if (c->GetY() > y+road) break;
- if (c->IsUsed() > 0) continue;
- if((c->GetZ()-z)*(c->GetZ()-z) > 3 * sz2) continue;
-
- Double_t h01 = GetTiltFactor(c);
- chi2=t.GetPredictedChi2(c,h01);
-
- if (chi2 > maxChi2) continue;
- maxChi2=chi2;
- cl=c;
- index=timeBin.GetIndex(i);
-
- //check is correct
- if((c->GetLabel(0) != trackIndex) &&
- (c->GetLabel(1) != trackIndex) &&
- (c->GetLabel(2) != trackIndex)) t.AddNWrong();
- }
- if(!cl) {
-
- for (Int_t i=timeBin.Find(y-road); i<timeBin; i++) {
- AliTRDcluster* c=(AliTRDcluster*)(timeBin[i]);
-
- if (c->GetY() > y+road) break;
- if (c->IsUsed() > 0) continue;
- if((c->GetZ()-z)*(c->GetZ()-z) > 2.25 * 12 * sz2) continue;
-
- Double_t h01 = GetTiltFactor(c);
- chi2=t.GetPredictedChi2(c,h01);
-
- if (chi2 > maxChi2) continue;
- maxChi2=chi2;
- cl=c;
- index=timeBin.GetIndex(i);
- }
- }
-
+ if (clusters[nr+1]>0) {
+ index = clusters[nr+1];
+ cl = (AliTRDcluster*)GetCluster(index);
+ Double_t h01 = GetTiltFactor(cl);
+ maxChi2=t.GetPredictedChi2(cl,h01);
+ }
+
if (cl) {
- wYclosest = cl->GetY();
- wZclosest = cl->GetZ();
-
- t.SetSampledEdx(cl->GetQ()/dx,t.GetNumberOfClusters());
+ if (cl->GetNPads()<5)
+ t.SetSampledEdx(TMath::Abs(cl->GetQ()/dx));
Double_t h01 = GetTiltFactor(cl);
Int_t det = cl->GetDetector();
Int_t plane = fGeom->GetPlane(det);
-
+ if (t.fX>345){
+ t.fNLast++;
+ t.fChi2Last+=maxChi2;
+ }
if(!t.UpdateMI(cl,maxChi2,index,h01,plane)) {
- //if(!t.Update(cl,maxChi2,index,h01)) {
- if(!tryAgain--) return 0;
+ if(!t.Update(cl,maxChi2,index,h01)) {
+ //if(!tryAgain--) return 0;
+ }
}
else tryAgain=fMaxGap;
- }
+ //
+
+ if (cl->GetLocalTimeBin()==1&&t.fN>20 && float(t.fChi2)/float(t.fN)<5){
+ Float_t ratio1 = Float_t(t.fN)/Float_t(t.fNExpected);
+ if (tracklet.GetChi2()<18&&ratio0>0.8&&ratio1>0.6 &&ratio0+ratio1>1.5 && t.GetNCross()==0 && TMath::Abs(t.GetSnp())<0.85){
+ t.MakeBackupTrack(); // make backup of the track until is gold
+ }
+ }
+
+ }
else {
- if (tryAgain==0) break;
- tryAgain--;
-
- //if (minDY < 1000000 && isNewLayer)
- //cout << "\t" << nRefPlane << "\t" << "\t" << t.GetNRotate() << "\t" <<
- // road << "\t" << minDY << "\t" << chi2 << "\t" << wChi2 << "\t" << maxChi2 << endl;
-
+ // if (tryAgain==0) break;
+ //tryAgain--;
}
-
- isNewLayer = kFALSE;
-
- /*
- if((((Int_t) wTB)%15 == 0) || (((Int_t) wTB)%15 == 14)) {
-
- printf(" %f", wIndex); //1
- printf(" %f", wTB); //2
- printf(" %f", wYrt); //3
- printf(" %f", wYclosest); //4
- printf(" %f", wYcorrect); //5
- printf(" %f", wYwindow); //6
- printf(" %f", wZrt); //7
- printf(" %f", wZclosest); //8
- printf(" %f", wZcorrect); //9
- printf(" %f", wZwindow); //10
- printf(" %f", wPx); //11
- printf(" %f", wPy); //12
- printf(" %f", wPz); //13
- printf(" %f", wSigmaC2*1000000); //14
- printf(" %f", wSigmaTgl2*1000); //15
- printf(" %f", wSigmaY2); //16
- // printf(" %f", wSigmaZ2); //17
- printf(" %f", wChi2); //17
- printf(" %f", wC); //18
- printf("\n");
- }
- */
+
+
}
}
}
else
t.SetStop(kFALSE);
return expectedNumberOfClusters;
-
-
+
+
}
//---------------------------------------------------------------------------
AliTRDcluster *cl=(AliTRDcluster*)GetCluster(iCluster[nr-1]);
Double_t h01 = GetTiltFactor(cl);
Double_t chi2=t.GetPredictedChi2(cl, h01);
- t.SetSampledEdx(cl->GetQ()/dx,t.GetNumberOfClusters());
+ if (cl->GetNPads()<5) t.SetSampledEdx(TMath::Abs(cl->GetQ()/dx));
+
+ //t.SetSampledEdx(cl->GetQ()/dx,t.GetNumberOfClusters());
t.Update(cl,chi2,iCluster[nr-1],h01);
}
y = t.GetY();
z = t.GetZ();
- // first propagate to the outer surface of the current time bin
- fTrSec[s]->GetLayer(nr)->GetPropagationParameters(y,z,dx,rho,radLength,lookForCluster);
- x = fTrSec[s]->GetLayer(nr)->GetX()-dx/2;
-
- if(!t.PropagateTo(x,radLength,rho)) return 0;
- AdjustSector(&t);
- if(!t.PropagateTo(x,radLength,rho)) return 0;
-
- y = t.GetY();
- z = t.GetZ();
-
- // now propagate to the middle plane of the next time bin
- fTrSec[s]->GetLayer(nr-1)->GetPropagationParameters(y,z,dx,rho,radLength,lookForCluster);
- x = fTrSec[s]->GetLayer(nr-1)->GetX();
-
- if(!t.PropagateTo(x,radLength,rho)) return 0;
- AdjustSector(&t);
- if(!t.PropagateTo(x,radLength,rho)) return 0;
- }
- return 1;
-}
-
-void AliTRDtracker::LoadEvent()
-{
- // Fills clusters into TRD tracking_sectors
- // Note that the numbering scheme for the TRD tracking_sectors
- // differs from that of TRD sectors
-
- ReadClusters(fClusters);
- Int_t ncl=fClusters->GetEntriesFast();
- cout<<"\n LoadSectors: sorting "<<ncl<<" clusters"<<endl;
-
- UInt_t index;
- while (ncl--) {
-// printf("\r %d left ",ncl);
- AliTRDcluster *c=(AliTRDcluster*)fClusters->UncheckedAt(ncl);
- Int_t detector=c->GetDetector();
- Int_t localTimeBin=c->GetLocalTimeBin();
- Int_t sector=fGeom->GetSector(detector);
- Int_t plane=fGeom->GetPlane(detector);
-
- Int_t trackingSector = CookSectorIndex(sector);
-
- Int_t gtb = fTrSec[trackingSector]->CookTimeBinIndex(plane,localTimeBin);
- if(gtb < 0) continue;
- Int_t layer = fTrSec[trackingSector]->GetLayerNumber(gtb);
+ // first propagate to the outer surface of the current time bin
+ fTrSec[s]->GetLayer(nr)->GetPropagationParameters(y,z,dx,rho,radLength,lookForCluster);
+ x = fTrSec[s]->GetLayer(nr)->GetX()-dx/2;
+
+ if(!t.PropagateTo(x,radLength,rho)) return 0;
+ AdjustSector(&t);
+ if(!t.PropagateTo(x,radLength,rho)) return 0;
- index=ncl;
- fTrSec[trackingSector]->GetLayer(layer)->InsertCluster(c,index);
- }
- printf("\r\n");
+ y = t.GetY();
+ z = t.GetZ();
-}
+ // now propagate to the middle plane of the next time bin
+ fTrSec[s]->GetLayer(nr-1)->GetPropagationParameters(y,z,dx,rho,radLength,lookForCluster);
+ x = fTrSec[s]->GetLayer(nr-1)->GetX();
+
+ if(!t.PropagateTo(x,radLength,rho)) return 0;
+ AdjustSector(&t);
+ if(!t.PropagateTo(x,radLength,rho)) return 0;
+ }
+ return 1;
+}
//_____________________________________________________________________________
Int_t AliTRDtracker::LoadClusters(TTree *cTree)
// Fills clusters into TRD tracking_sectors
// Note that the numbering scheme for the TRD tracking_sectors
// differs from that of TRD sectors
-
+ cout<<"\n Read Sectors clusters"<<endl;
if (ReadClusters(fClusters,cTree)) {
Error("LoadClusters","Problem with reading the clusters !");
return 1;
}
Int_t ncl=fClusters->GetEntriesFast();
+ fNclusters=ncl;
cout<<"\n LoadSectors: sorting "<<ncl<<" clusters"<<endl;
UInt_t index;
index=ncl;
fTrSec[trackingSector]->GetLayer(layer)->InsertCluster(c,index);
}
- printf("\r\n");
+ // printf("\r\n");
//
//
/*
}
//_____________________________________________________________________________
-void AliTRDtracker::UnloadEvent()
+void AliTRDtracker::UnloadClusters()
{
//
// Clears the arrays of clusters and tracks. Resets sectors and timebins
nentr = fClusters->GetEntriesFast();
for (i = 0; i < nentr; i++) delete fClusters->RemoveAt(i);
+ fNclusters = 0;
nentr = fSeeds->GetEntriesFast();
for (i = 0; i < nentr; i++) delete fSeeds->RemoveAt(i);
}
}
}
-
-//_____________________________________________________________________________
-Int_t AliTRDtracker::ReadClusters(TObjArray *array, TTree *ClusterTree)
+//__________________________________________________________________________
+void AliTRDtracker::MakeSeedsMI(Int_t /*inner*/, Int_t /*outer*/)
{
//
- // Reads AliTRDclusters (option >= 0) or AliTRDrecPoints (option < 0)
- // from the file. The names of the cluster tree and branches
- // should match the ones used in AliTRDclusterizer::WriteClusters()
+ // Creates seeds using clusters between position inner plane and outer plane
//
- TObjArray *clusterArray = new TObjArray(400);
-
- TBranch *branch=ClusterTree->GetBranch("TRDcluster");
- if (!branch) {
- Error("ReadClusters","Can't get the branch !");
- return 1;
- }
- branch->SetAddress(&clusterArray);
-
- Int_t nEntries = (Int_t) ClusterTree->GetEntries();
- printf("found %d entries in %s.\n",nEntries,ClusterTree->GetName());
-
- // Loop through all entries in the tree
- Int_t nbytes;
- AliTRDcluster *c = 0;
- printf("\n");
- for (Int_t iEntry = 0; iEntry < nEntries; iEntry++) {
-
- // Import the tree
- nbytes += ClusterTree->GetEvent(iEntry);
-
- // Get the number of points in the detector
- Int_t nCluster = clusterArray->GetEntriesFast();
-// printf("\r Read %d clusters from entry %d", nCluster, iEntry);
-
- // Loop through all TRD digits
- for (Int_t iCluster = 0; iCluster < nCluster; iCluster++) {
- c = (AliTRDcluster*)clusterArray->UncheckedAt(iCluster);
- AliTRDcluster *co = new AliTRDcluster(*c);
- co->SetSigmaY2(c->GetSigmaY2() * fSY2corr);
- Int_t ltb = co->GetLocalTimeBin();
- if(ltb == 19) co->SetSigmaZ2(c->GetSigmaZ2());
- else if(fNoTilt) co->SetSigmaZ2(c->GetSigmaZ2() * fSZ2corr);
- array->AddLast(co);
- delete clusterArray->RemoveAt(iCluster);
+ const Double_t maxtheta = 2;
+ const Double_t maxphi = 1.5;
+ Int_t maxSec=AliTRDgeometry::kNsect;
+
+ //
+ // find the maximal and minimal layer for the planes
+ // fucking "object oriented" geometry - find the time bin range for different planes
+ //
+ Int_t layers[6][2];
+ for (Int_t i=0;i<6;i++){layers[i][0]=10000; layers[i][1]=0;}
+
+ for (Int_t ns=0;ns<maxSec;ns++){
+ for (Int_t ilayer=0;ilayer<fTrSec[ns]->GetNumberOfLayers();ilayer++){
+ AliTRDpropagationLayer& layer=*(fTrSec[ns]->GetLayer(ilayer));
+ if (layer==0) continue;
+ Int_t det = layer[0]->GetDetector();
+ Int_t plane = fGeom->GetPlane(det);
+ if (ilayer<layers[plane][0]) layers[plane][0] = ilayer;
+ if (ilayer>layers[plane][1]) layers[plane][1] = ilayer;
}
}
-
- delete clusterArray;
-
- return 0;
-}
-
-//______________________________________________________________________
-void AliTRDtracker::ReadClusters(TObjArray *array, const Char_t *filename)
-{
//
- // Reads AliTRDclusters from file <filename>. The names of the cluster
- // tree and branches should match the ones used in
- // AliTRDclusterizer::WriteClusters()
- // if <array> == 0, clusters are added into AliTRDtracker fCluster array
- //
-
- TDirectory *savedir=gDirectory;
-
- TFile *file = TFile::Open(filename);
- if (!file->IsOpen()) {
- cerr<<"Can't open file with TRD clusters"<<endl;
- return;
- }
-
- Char_t treeName[12];
- sprintf(treeName,"TreeR%d_TRD",GetEventNumber());
- TTree *clusterTree = (TTree*) gDirectory->Get(treeName);
-
- if (!clusterTree) {
- cerr<<"AliTRDtracker::ReadClusters(): ";
- cerr<<"can't get a tree with clusters !\n";
- return;
- }
-
- TObjArray *clusterArray = new TObjArray(400);
-
- clusterTree->GetBranch("TRDcluster")->SetAddress(&clusterArray);
-
- Int_t nEntries = (Int_t) clusterTree->GetEntries();
- cout<<"found "<<nEntries<<" in clusterTree"<<endl;
-
- // Loop through all entries in the tree
- Int_t nbytes;
- AliTRDcluster *c = 0;
-
- printf("\n");
-
- for (Int_t iEntry = 0; iEntry < nEntries; iEntry++) {
-
- // Import the tree
- nbytes += clusterTree->GetEvent(iEntry);
+
+ Int_t ilayer1 = layers[5][1]; // time bin in mplification region
+ Int_t ilayer2 = layers[3][1]; //
+ Int_t ilayerM = layers[4][1]; //
+ //
+ Double_t x1 = fTrSec[0]->GetX(ilayer1);
+ Double_t x2 = fTrSec[0]->GetX(ilayer2);
+ Double_t xm = fTrSec[0]->GetX(ilayerM);
+ Double_t dist = x2-x1;
+ // Int_t indexes1[20];
+ //Int_t indexes2[20];
+ AliTRDcluster *clusters1[15],*clusters2[15],*clustersM[15];
+ //
+ //
+ for (Int_t ns=0; ns<maxSec; ns++) {
+ AliTRDpropagationLayer& layer1=*(fTrSec[ns]->GetLayer(ilayer1)); //select propagation layers
+ AliTRDpropagationLayer& layer2=*(fTrSec[ns]->GetLayer(ilayer2));
+ //
+ for (Int_t icl1=0;icl1<layer1;icl1++){
+ AliTRDcluster *cl1 = layer1[icl1];
+ if (!cl1) continue;
+ Double_t y1 = cl1->GetY();
+ Double_t z1 = cl1->GetZ();
+ //
+ for (Int_t icl2=0;icl2<layer2;icl2++){
+ AliTRDcluster *cl2 = layer2[icl2];
+ if (!cl2) continue;
+ Double_t y2 = cl2->GetY();
+ Double_t z2 = cl2->GetZ();
+ Double_t tanphi = (y2-y1)/dist;
+ Double_t tantheta = (z2-z1)/dist;
+ if (TMath::Abs(tanphi)>maxphi) continue;
+ if (TMath::Abs(tantheta)>maxtheta) continue;
+ //
+ clusters1[0] = cl1;
+ clusters2[0] = cl2;
+ Double_t road = 0.5+TMath::Abs(tanphi)*1;
+ Int_t ncl=0;
+ Double_t sum1=0, sumx1=0,sum2x1=0,sumxy1=0, sumy1=0;
+ Double_t sum2=0, sumx2=0,sum2x2=0,sumxy2=0, sumy2=0;
+ //
+ for (Int_t dlayer=1;dlayer<15;dlayer++){
+ clusters1[dlayer]=0;
+ clusters2[dlayer]=0;
+ AliTRDpropagationLayer& layer1C=*(fTrSec[ns]->GetLayer(ilayer1-dlayer)); //select propagation layers
+ AliTRDpropagationLayer& layer2C=*(fTrSec[ns]->GetLayer(ilayer2-dlayer)); //
+ Double_t yy1 = y1+(tanphi) *(layer1C.GetX()-x1);
+ Double_t zz1 = z1+(tantheta)*(layer1C.GetX()-x1);
+ Double_t yy2 = y1+(tanphi) *(layer2C.GetX()-x1);
+ Double_t zz2 = z1+(tantheta)*(layer2C.GetX()-x1);
+ Int_t index1 = layer1C.FindNearestCluster(yy1,zz1,road);
+ Int_t index2 = layer2C.FindNearestCluster(yy2,zz2,road);
+ if (index1>=0) {
+ clusters1[dlayer]= (AliTRDcluster*)GetCluster(index1);
+ ncl++;
+ sum1++;
+ Double_t dx = layer1C.GetX()-x1;
+ sumx1 +=dx;
+ sum2x1+=dx*dx;
+ sumxy1+=dx*clusters1[dlayer]->GetY();
+ sumy1 +=clusters1[dlayer]->GetY();
+ }
+ if (index2>=0) {
+ clusters2[dlayer]= (AliTRDcluster*)GetCluster(index2);
+ ncl++;
+ sum2++;
+ Double_t dx = layer2C.GetX()-x2;
+ sumx2 +=dx;
+ sum2x2+=dx*dx;
+ sumxy2+=dx*clusters2[dlayer]->GetY();
+ sumy2 +=clusters2[dlayer]->GetY();
+ }
+ }
+ if (sum1<10) continue;
+ if (sum2<10) continue;
+ //
+ Double_t det1 = sum1*sum2x1-sumx1*sumx1;
+ Double_t angle1 = (sum1*sumxy1-sumx1*sumy1)/det1;
+ Double_t pos1 = (sum2x1*sumy1-sumx1*sumxy1)/det1; // at x1
+ //
+ Double_t det2 = sum2*sum2x2-sumx2*sumx2;
+ Double_t angle2 = (sum2*sumxy2-sumx2*sumy2)/det2;
+ Double_t pos2 = (sum2x2*sumy2-sumx2*sumxy2)/det2; // at x2
+ //
+ //
- // Get the number of points in the detector
- Int_t nCluster = clusterArray->GetEntriesFast();
- printf("\n Read %d clusters from entry %d", nCluster, iEntry);
+ Double_t sumM=0, sumxM=0,sum2xM=0,sumxyM=0, sumyM=0;
+ //
+ for (Int_t dlayer=1;dlayer<15;dlayer++){
+ clustersM[dlayer]=0;
+ AliTRDpropagationLayer& layerM=*(fTrSec[ns]->GetLayer(ilayerM-dlayer)); //select propagation layers
+ Double_t yyM = y1+(tanphi) *(layerM.GetX()-x1);
+ Double_t zzM = z1+(tantheta)*(layerM.GetX()-x1);
+ Int_t indexM = layerM.FindNearestCluster(yyM,zzM,road);
+ if (indexM>=0) {
+ clustersM[dlayer]= (AliTRDcluster*)GetCluster(indexM);
+ ncl++;
+ sumM++;
+ Double_t dx = layerM.GetX()-xm;
+ sumxM +=dx;
+ sum2xM+=dx*dx;
+ sumxyM+=dx*clustersM[dlayer]->GetY();
+ sumyM +=clustersM[dlayer]->GetY();
+ }
+ }
+ Double_t detM = sumM*sum2xM-sumxM*sumxM;
+ Double_t posM=0, angleM=0;
+ if (TMath::Abs(detM)>0.0000001){
+ angleM = (sumM*sumxyM-sumxM*sumyM)/detM;
+ posM = (sum2xM*sumyM-sumxM*sumxyM)/detM; // at xm
+ }
+ //
- // Loop through all TRD digits
- for (Int_t iCluster = 0; iCluster < nCluster; iCluster++) {
- c = (AliTRDcluster*)clusterArray->UncheckedAt(iCluster);
- AliTRDcluster *co = new AliTRDcluster(*c);
- co->SetSigmaY2(c->GetSigmaY2() * fSY2corr);
- Int_t ltb = co->GetLocalTimeBin();
- if(ltb == 19) co->SetSigmaZ2(c->GetSigmaZ2());
- else if(fNoTilt) co->SetSigmaZ2(c->GetSigmaZ2() * fSZ2corr);
- array->AddLast(co);
- delete clusterArray->RemoveAt(iCluster);
+ if (ncl>15){
+ TTreeSRedirector& cstream = *fDebugStreamer;
+ cstream<<"Seeds"<<
+ "Ncl="<<ncl<<
+ "SumM="<<sumM<<
+ "x1="<<x1<<
+ "x2="<<x2<<
+ "Cl1.="<<cl1<<
+ "Cl2.="<<cl2<<
+ "Phi="<<tanphi<<
+ "Theta="<<tantheta<<
+ "Pos1="<<pos1<<
+ "Pos2="<<pos2<<
+ "PosM="<<posM<<
+ "Angle1="<<angle1<<
+ "Angle2="<<angle2<<
+ "AngleM="<<angleM<<
+ "\n";
+ }
+ }
}
}
+}
- file->Close();
- delete clusterArray;
- savedir->cd();
-
-}
-
-void AliTRDtracker::ReadClusters(TObjArray *array, const TFile *inp)
+//_____________________________________________________________________________
+Int_t AliTRDtracker::ReadClusters(TObjArray *array, TTree *ClusterTree) const
{
//
// Reads AliTRDclusters (option >= 0) or AliTRDrecPoints (option < 0)
// from the file. The names of the cluster tree and branches
// should match the ones used in AliTRDclusterizer::WriteClusters()
//
-
- TDirectory *savedir=gDirectory;
-
- if (inp) {
- TFile *in=(TFile*)inp;
- if (!in->IsOpen()) {
- cerr<<"AliTRDtracker::ReadClusters(): input file is not open !\n";
- return;
- }
- else{
- in->cd();
- }
- }
-
- Char_t treeName[12];
- sprintf(treeName,"TreeR%d_TRD",GetEventNumber());
- TTree *clusterTree = (TTree*) gDirectory->Get(treeName);
+ Int_t nsize = Int_t(ClusterTree->GetTotBytes()/(sizeof(AliTRDcluster)));
+ TObjArray *clusterArray = new TObjArray(nsize+1000);
- TObjArray *clusterArray = new TObjArray(400);
-
- clusterTree->GetBranch("TRDcluster")->SetAddress(&clusterArray);
+ TBranch *branch=ClusterTree->GetBranch("TRDcluster");
+ if (!branch) {
+ Error("ReadClusters","Can't get the branch !");
+ return 1;
+ }
+ branch->SetAddress(&clusterArray);
- Int_t nEntries = (Int_t) clusterTree->GetEntries();
- printf("found %d entries in %s.\n",nEntries,clusterTree->GetName());
+ Int_t nEntries = (Int_t) ClusterTree->GetEntries();
+ // printf("found %d entries in %s.\n",nEntries,ClusterTree->GetName());
// Loop through all entries in the tree
- Int_t nbytes;
+ Int_t nbytes = 0;
AliTRDcluster *c = 0;
- printf("\n");
-
+ // printf("\n");
for (Int_t iEntry = 0; iEntry < nEntries; iEntry++) {
// Import the tree
- nbytes += clusterTree->GetEvent(iEntry);
+ nbytes += ClusterTree->GetEvent(iEntry);
// Get the number of points in the detector
Int_t nCluster = clusterArray->GetEntriesFast();
// Loop through all TRD digits
for (Int_t iCluster = 0; iCluster < nCluster; iCluster++) {
c = (AliTRDcluster*)clusterArray->UncheckedAt(iCluster);
- AliTRDcluster *co = new AliTRDcluster(*c);
+// if (c->GetNPads()>3&&(iCluster%3>0)) {
+// delete clusterArray->RemoveAt(iCluster);
+// continue;
+// }
+ // AliTRDcluster *co = new AliTRDcluster(*c); //remove unnecesary coping - + clusters are together in memory
+ AliTRDcluster *co = c;
co->SetSigmaY2(c->GetSigmaY2() * fSY2corr);
Int_t ltb = co->GetLocalTimeBin();
if(ltb == 19) co->SetSigmaZ2(c->GetSigmaZ2());
else if(fNoTilt) co->SetSigmaZ2(c->GetSigmaZ2() * fSZ2corr);
array->AddLast(co);
- delete clusterArray->RemoveAt(iCluster);
+ // delete clusterArray->RemoveAt(iCluster);
+ clusterArray->RemoveAt(iCluster);
}
}
+// cout<<"Allocated"<<nsize<<"\tLoaded"<<array->GetEntriesFast()<<"\n";
delete clusterArray;
- savedir->cd();
+ return 0;
}
//__________________________________________________________________
//
// AliTRDtrackingSector Constructor
//
+ AliTRDpadPlane *padPlane = 0;
fGeom = geo;
fPar = par;
}
ymax = fGeom->GetChamberWidth(plane)/2.;
- ymaxsensitive = (fPar->GetColPadSize(plane)*fPar->GetColMax(plane)-4)/2.;
+ // Modidified for new pad plane class, 22.04.05 (C.B.)
+ // ymaxsensitive = (fPar->GetColPadSize(plane)*fPar->GetColMax(plane)-4)/2.;
+ padPlane = fPar->GetPadPlane(plane,0);
+ ymaxsensitive = (padPlane->GetColSize(1)*padPlane->GetNcols()-4)/2.;
+
+ // ymaxsensitive = (fPar->GetColPadSize(plane)*fPar->GetColMax(plane)-4)/2.;
for(Int_t ch = 0; ch < kNchambers; ch++) {
zmax[ch] = fGeom->GetChamberLength(plane,ch)/2;
- Float_t pad = fPar->GetRowPadSize(plane,ch,0);
+ //
+ // Modidified for new pad plane class, 22.04.05 (C.B.)
+ //Float_t pad = fPar->GetRowPadSize(plane,ch,0);
+ Float_t pad = padPlane->GetRowSize(1);
+ //Float_t pad = fPar->GetRowPadSize(plane,ch,0);
Float_t row0 = fPar->GetRow0(plane,ch,0);
Int_t nPads = fPar->GetRowMax(plane,ch,0);
zmaxsensitive[ch] = Float_t(nPads)*pad/2.;
// zc[ch] = (pad * nPads)/2 + row0 - pad/2;
- zc[ch] = (pad * nPads)/2 + row0;
+ // zc[ch] = (pad * nPads)/2 + row0;
+ zc[ch] = -(pad * nPads)/2 + row0;
//zc[ch] = row0+zmax[ch]-AliTRDgeometry::RpadW();
}
- dx = fPar->GetTimeBinSize();
+ dx = fgkDriftCorrection*fPar->GetDriftVelocity()
+ / fPar->GetSamplingFrequency();
rho = 0.00295 * 0.85; radLength = 11.0;
Double_t x0 = (Double_t) fPar->GetTime0(plane);
steps = (Int_t) (dxAmp/dx);
for(tb = 0; tb < steps; tb++) {
- x = x0 + tb * dx + dx/2;
+ x = x0 + tb * dx + dx/2+ fgkOffsetX;
tbIndex = CookTimeBinIndex(plane, -tb-1);
ppl = new AliTRDpropagationLayer(x,dx,rho,radLength,tbIndex);
ppl->SetYmax(ymax,ymaxsensitive);
InsertLayer(ppl);
// Drift region
- dx = fPar->GetTimeBinSize();
+
+ dx = fgkDriftCorrection*fPar->GetDriftVelocity()
+ / fPar->GetSamplingFrequency();
steps = (Int_t) (dxDrift/dx);
for(tb = 0; tb < steps; tb++) {
- x = x0 - tb * dx - dx/2;
+ x = x0 - tb * dx - dx/2 + fgkOffsetX; //temporary fix - fix it the parameters
tbIndex = CookTimeBinIndex(plane, tb);
ppl = new AliTRDpropagationLayer(x,dx,rho,radLength,tbIndex);
MapTimeBinLayers();
delete [] zc;
delete [] zmax;
+ delete [] zmaxsensitive;
}
Double_t dxAmp = (Double_t) fGeom->CamHght(); // Amplification region
Double_t dxDrift = (Double_t) fGeom->CdrHght(); // Drift region
- Double_t dx = (Double_t) fPar->GetTimeBinSize();
+
+ Double_t dx = fgkDriftCorrection*(Double_t) fPar->GetDriftVelocity()
+ / fPar->GetSamplingFrequency();
Int_t tbAmp = fPar->GetTimeBefore();
Int_t maxAmp = (Int_t) ((dxAmp+0.000001)/dx);
x2 = fLayers[i+1]->GetX();
dx2 = fLayers[i+1]->GetdX();
gap = (x2 - dx2/2) - (x1 + dx1/2);
- if(gap < -0.01) {
- printf("*** warning: layers %d and %d are overlayed:\n",i,i+1);
- printf(" %f + %f + %f > %f\n", x1, dx1/2, dx2/2, x2);
- }
- if(gap > 0.01) {
- printf("*** warning: layers %d and %d have a large gap:\n",i,i+1);
- printf(" (%f - %f) - (%f + %f) = %f\n",
- x2, dx2/2, x1, dx1, gap);
- }
+// if(gap < -0.01) {
+// printf("*** warning: layers %d and %d are overlayed:\n",i,i+1);
+// printf(" %f + %f + %f > %f\n", x1, dx1/2, dx2/2, x2);
+// }
+// if(gap > 0.01) {
+// printf("*** warning: layers %d and %d have a large gap:\n",i,i+1);
+// printf(" (%f - %f) - (%f + %f) = %f\n",
+// x2, dx2/2, x1, dx1, gap);
+// }
}
}
return m;
}
+
+
+
+
//______________________________________________________
void AliTRDtracker::AliTRDpropagationLayer::SetZ(Double_t* center, Double_t *w, Double_t *wsensitive )
{
-void AliTRDtracker::AliTRDpropagationLayer::GetPropagationParameters(
+Bool_t AliTRDtracker::AliTRDpropagationLayer::GetPropagationParameters(
Double_t y, Double_t z, Double_t &dx, Double_t &rho, Double_t &radLength,
Bool_t &lookForCluster) const
{
// and sensitivity <lookForCluster> in point <y,z>
//
+ Double_t alpha = AliTRDgeometry::GetAlpha();
+ Double_t ymax = fX*TMath::Tan(0.5*alpha);
+
+
dx = fdX;
rho = fRho;
radLength = fX0;
lookForCluster = kFALSE;
+ Bool_t cross =kFALSE;
+ //
+ //
+ if ( (ymax-TMath::Abs(y))<3.){ //cross material
+ rho*=40.;
+ radLength*=40.;
+ cross=kTRUE;
+ }
//
// check dead regions in sensitive volume
- if(fTimeBinIndex >= 0) {
//
- Int_t zone=-1;
- for(Int_t ch = 0; ch < (Int_t) kZones; ch++) {
- if (TMath::Abs(z - fZc[ch]) < fZmaxSensitive[ch]){
- zone = ch;
- lookForCluster = !(fIsHole[zone]);
- if(TMath::Abs(y) > fYmaxSensitive){
- lookForCluster = kFALSE;
- }
- if (fIsHole[zone]) {
- //if hole
- rho = 1.29e-3;
- radLength = 36.66;
- }
- }
- }
- return;
+ Int_t zone=-1;
+ for(Int_t ch = 0; ch < (Int_t) kZones; ch++) {
+ if (TMath::Abs(z - fZc[ch]) > fZmax[ch]) continue; //not in given zone
+ //
+ if (TMath::Abs(z - fZc[ch]) < fZmaxSensitive[ch]){
+ if (fTimeBinIndex>=0) lookForCluster = !(fIsHole[zone]);
+ if(TMath::Abs(y) > fYmaxSensitive){
+ lookForCluster = kFALSE;
+ }
+ if (fIsHole[zone]) {
+ //if hole
+ rho = 1.29e-3;
+ radLength = 36.66;
+ }
+ }else{
+ cross = kTRUE; rho = 2.7; radLength = 24.01; //aluminium in between
+ }
}
//
+ if (fTimeBinIndex>=0) return cross;
+ //
//
// check hole
- if (fHole==kFALSE) return;
+ if (fHole==kFALSE) return cross;
//
for(Int_t ch = 0; ch < (Int_t) kZones; ch++) {
if (TMath::Abs(z - fZc[ch]) < fZmax[ch]){
//if hole
rho = 1.29e-3;
radLength = 36.66;
- }
+ }
}
}
- return;
+ return cross;
}
Int_t AliTRDtracker::AliTRDpropagationLayer::GetZone( Double_t z) const
return m;
}
+Int_t AliTRDtracker::AliTRDpropagationLayer::FindNearestCluster(Double_t y, Double_t z, Double_t maxroad) const
+{
+ //
+ // Returns index of the cluster nearest to the given y,z
+ //
+ Int_t index = -1;
+ Int_t maxn = fN;
+ Double_t mindist = maxroad;
+ Float_t padlength =-1;
+ //
+ for (Int_t i=Find(y-maxroad); i<maxn; i++) {
+ AliTRDcluster* c=(AliTRDcluster*)(fClusters[i]);
+ if (padlength<0){
+ padlength = TMath::Sqrt(c->GetSigmaZ2()*12);
+ }
+ //
+ if (c->GetY() > y+maxroad) break;
+ if((c->GetZ()-z)*(c->GetZ()-z) > padlength*0.75) continue;
+ if (TMath::Abs(c->GetY()-y)<mindist){
+ mindist = TMath::Abs(c->GetY()-y);
+ index = GetIndex(i);
+ }
+ }
+ return index;
+}
+
+
//---------------------------------------------------------
Double_t AliTRDtracker::GetTiltFactor(const AliTRDcluster* c) {
//
// Returns correction factor for tilted pads geometry
//
-
- Double_t h01 = sin(TMath::Pi() / 180.0 * fPar->GetTiltingAngle());
Int_t det = c->GetDetector();
Int_t plane = fGeom->GetPlane(det);
-
- if((plane == 1) || (plane == 3) || (plane == 5)) h01=-h01;
+ AliTRDpadPlane *padPlane = fPar->GetPadPlane(plane,0);
+ Double_t h01 = TMath::Tan(-TMath::Pi() / 180.0 * padPlane->GetTiltingAngle());
if(fNoTilt) h01 = 0;
-
return h01;
}
+void AliTRDtracker::CookdEdxTimBin(AliTRDtrack& TRDtrack)
+{
+ // *** ADDED TO GET MORE INFORMATION FOR TRD PID ---- PS
+ // This is setting fdEdxPlane and fTimBinPlane
+ // Sums up the charge in each plane for track TRDtrack and also get the
+ // Time bin for Max. Cluster
+ // Prashant Shukla (shukla@physi.uni-heidelberg.de)
+
+ // const Int_t kNPlane = AliTRDgeometry::Nplan();
+ // const Int_t kNPlane = 6;
+ Double_t clscharge[kNPlane], maxclscharge[kNPlane];
+ Int_t nCluster[kNPlane], timebin[kNPlane];
+
+ //Initialization of cluster charge per plane.
+ for (Int_t iPlane = 0; iPlane < kNPlane; iPlane++) {
+ clscharge[iPlane] = 0.0;
+ nCluster[iPlane] = 0;
+ timebin[iPlane] = -1;
+ maxclscharge[iPlane] = 0.0;
+ }
+
+ // Loop through all clusters associated to track TRDtrack
+ Int_t nClus = TRDtrack.GetNumberOfClusters(); // from Kalmantrack
+ for (Int_t iClus = 0; iClus < nClus; iClus++) {
+ Double_t charge = TRDtrack.GetClusterdQdl(iClus);
+ Int_t index = TRDtrack.GetClusterIndex(iClus);
+ AliTRDcluster *TRDcluster = (AliTRDcluster *) GetCluster(index);
+ if (!TRDcluster) continue;
+ Int_t tb = TRDcluster->GetLocalTimeBin();
+ if (!tb) continue;
+ Int_t detector = TRDcluster->GetDetector();
+ Int_t iPlane = fGeom->GetPlane(detector);
+ clscharge[iPlane] = clscharge[iPlane]+charge;
+ if(charge > maxclscharge[iPlane]) {
+ maxclscharge[iPlane] = charge;
+ timebin[iPlane] = tb;
+ }
+ nCluster[iPlane]++;
+ } // end of loop over cluster
+
+ // Setting the fdEdxPlane and fTimBinPlane variabales
+ Double_t Total_ch = 0;
+ for (Int_t iPlane = 0; iPlane < kNPlane; iPlane++) {
+ // Quality control of TRD track.
+ if (nCluster[iPlane]<= 5) {
+ clscharge[iPlane]=0.0;
+ timebin[iPlane]=-1;
+ }
+ if (nCluster[iPlane]) clscharge[iPlane] /= nCluster[iPlane];
+ TRDtrack.SetPIDsignals(clscharge[iPlane], iPlane);
+ TRDtrack.SetPIDTimBin(timebin[iPlane], iPlane);
+ Total_ch= Total_ch+clscharge[iPlane];
+ }
+ // Int_t i;
+ // Int_t nc=TRDtrack.GetNumberOfClusters();
+ // Float_t dedx=0;
+ // for (i=0; i<nc; i++) dedx += TRDtrack.GetClusterdQdl(i);
+ // dedx /= nc;
+ // for (Int_t iPlane = 0; iPlane < kNPlane; iPlane++) {
+ // TRDtrack.SetPIDsignals(dedx, iPlane);
+ // TRDtrack.SetPIDTimBin(timbin[iPlane], iPlane);
+ // }
+
+} // end of function
+Int_t AliTRDtracker::FindClusters(Int_t sector, Int_t t0, Int_t t1, AliTRDtrack * track, Int_t *clusters,AliTRDtracklet&tracklet)
+{
+ //
+ //
+ // try to find nearest clusters to the track in timebins from t0 to t1
+ //
+ //
+ //
+ // correction coeficients - depends on TRD parameters - to be changed according it
+ //
+
+ Double_t x[100],yt[100],zt[100];
+ Double_t xmean=0; //reference x
+ Double_t dz[10][100],dy[10][100];
+ Float_t zmean[100], nmean[100];
+ Int_t clfound=0;
+ Int_t indexes[10][100]; // indexes of the clusters in the road
+ AliTRDcluster *cl[10][100]; // pointers to the clusters in the road
+ Int_t best[10][100]; // index of best matching cluster
+ //
+ //
+ TClonesArray array0("AliTRDcluster",1);
+ TClonesArray array1("AliTRDcluster",1);
+ for (Int_t it=0;it<t1-t0; it++){
+ x[it]=0;
+ yt[it]=0;
+ zt[it]=0;
+ clusters[it+t0]=-2;
+ zmean[it]=0;
+ nmean[it]=0;
+ //
+ for (Int_t ih=0;ih<10;ih++){
+ indexes[ih][it]=-2; //reset indexes1
+ cl[ih][it]=0;
+ dz[ih][it]=-100;
+ dy[ih][it]=-100;
+ best[ih][it]=0;
+ }
+ }
+ //
+ Double_t x0 = track->GetX();
+ Double_t sigmaz = TMath::Sqrt(track->GetSigmaZ2());
+ Int_t nall=0;
+ Int_t nfound=0;
+ Double_t h01 =0;
+ Int_t plane =-1;
+ Float_t padlength=0;
+ AliTRDtrack track2(*track);
+ Float_t snpy = track->GetSnp();
+ Float_t tany = TMath::Sqrt(snpy*snpy/(1.-snpy*snpy));
+ if (snpy<0) tany*=-1;
+ //
+ Double_t sy2=ExpectedSigmaY2(x0,track->GetTgl(),track->GetPt());
+ Double_t sz2=ExpectedSigmaZ2(x0,track->GetTgl());
+ Double_t road = 15.*sqrt(track->GetSigmaY2() + sy2);
+ if (road>6.) road=6.;
+
+ //
+ for (Int_t it=0;it<t1-t0;it++){
+ Double_t maxChi2[2]={fgkMaxChi2,fgkMaxChi2};
+ AliTRDpropagationLayer& timeBin=*(fTrSec[sector]->GetLayer(it+t0));
+ if (timeBin==0) continue; // no indexes1
+ Int_t maxn = timeBin;
+ x[it] = timeBin.GetX();
+ track2.PropagateTo(x[it]);
+ yt[it] = track2.GetY();
+ zt[it] = track2.GetZ();
+
+ Double_t y=yt[it],z=zt[it];
+ Double_t chi2 =1000000;
+ nall++;
+ //
+ // find 2 nearest cluster at given time bin
+ //
+ //
+ for (Int_t i=timeBin.Find(y-road); i<maxn; i++) {
+ AliTRDcluster* c=(AliTRDcluster*)(timeBin[i]);
+ h01 = GetTiltFactor(c);
+ if (plane<0){
+ Int_t det = c->GetDetector();
+ plane = fGeom->GetPlane(det);
+ padlength = TMath::Sqrt(c->GetSigmaZ2()*12.);
+ }
+ // if (c->GetLocalTimeBin()==0) continue;
+ if (c->GetY() > y+road) break;
+ if((c->GetZ()-z)*(c->GetZ()-z) > 12. * sz2) continue;
+
+ Double_t dist = TMath::Abs(c->GetZ()-z);
+ if (dist> (0.5*padlength+6.*sigmaz)) continue; // 6 sigma boundary cut
+ Double_t cost = 0;
+ //
+ if (dist> (0.5*padlength-sigmaz)){ // sigma boundary cost function
+ cost = (dist-0.5*padlength)/(2.*sigmaz);
+ if (cost>-1) cost= (cost+1.)*(cost+1.);
+ else cost=0;
+ }
+ // Int_t label = TMath::Abs(track->GetLabel());
+ // if (c->GetLabel(0)!=label && c->GetLabel(1)!=label&&c->GetLabel(2)!=label) continue;
+ chi2=track2.GetPredictedChi2(c,h01)+cost;
+ //
+ clfound++;
+ if (chi2 > maxChi2[1]) continue;
+
+ for (Int_t ih=2;ih<9; ih++){ //store the clusters in the road
+ if (cl[ih][it]==0){
+ cl[ih][it] = c;
+ indexes[ih][it] =timeBin.GetIndex(i); // index - 9 - reserved for outliers
+ break;
+ }
+ }
+ //
+ if (chi2 <maxChi2[0]){
+ maxChi2[1] = maxChi2[0];
+ maxChi2[0] = chi2;
+ indexes[1][it] = indexes[0][it];
+ cl[1][it] = cl[0][it];
+ indexes[0][it] = timeBin.GetIndex(i);
+ cl[0][it] = c;
+ continue;
+ }
+ maxChi2[1]=chi2;
+ cl[1][it] = c;
+ indexes[1][it] =timeBin.GetIndex(i);
+ }
+ if (cl[0][it]){
+ nfound++;
+ xmean += x[it];
+ }
+ }
+ //
+ if (nfound<4) return 0;
+ xmean /=Float_t(nfound); // middle x
+ track2.PropagateTo(xmean); // propagate track to the center
+ //
+ // choose one of the variants
+ //
+ Int_t changes[10];
+ Float_t sumz = 0;
+ Float_t sum = 0;
+ Double_t sumdy = 0;
+ Double_t sumdy2 = 0;
+ Double_t sumx = 0;
+ Double_t sumxy = 0;
+ Double_t sumx2 = 0;
+ Double_t mpads = 0;
+ //
+ Int_t ngood[10];
+ Int_t nbad[10];
+ //
+ Double_t meanz[10];
+ Double_t moffset[10]; // mean offset
+ Double_t mean[10]; // mean value
+ Double_t angle[10]; // angle
+ //
+ Double_t smoffset[10]; // sigma of mean offset
+ Double_t smean[10]; // sigma of mean value
+ Double_t sangle[10]; // sigma of angle
+ Double_t smeanangle[10]; // correlation
+ //
+ Double_t sigmas[10];
+ Double_t tchi2s[10]; // chi2s for tracklet
+ //
+ // calculate zmean
+ //
+ for (Int_t it=0;it<t1-t0;it++){
+ if (!cl[0][it]) continue;
+ for (Int_t dt=-3;dt<=3;dt++){
+ if (it+dt<0) continue;
+ if (it+dt>t1) continue;
+ if (!cl[0][it+dt]) continue;
+ zmean[it]+=cl[0][it+dt]->GetZ();
+ nmean[it]+=1.;
+ }
+ zmean[it]/=nmean[it];
+ }
+ //
+ for (Int_t it=0; it<t1-t0;it++){
+ best[0][it]=0;
+ for (Int_t ih=0;ih<10;ih++){
+ dz[ih][it]=-100;
+ dy[ih][it]=-100;
+ if (!cl[ih][it]) continue;
+ Float_t poscor = fgkCoef*(cl[ih][it]->GetLocalTimeBin() - fgkMean)+fgkOffset;
+ dz[ih][it] = cl[ih][it]->GetZ()- zt[it]; // calculate distance from track in z
+ dy[ih][it] = cl[ih][it]->GetY()+ dz[ih][it]*h01 - poscor -yt[it]; // in y
+ }
+ // minimize changes
+ if (!cl[0][it]) continue;
+ if (TMath::Abs(cl[0][it]->GetZ()-zmean[it])> padlength*0.8 &&cl[1][it])
+ if (TMath::Abs(cl[1][it]->GetZ()-zmean[it])< padlength*0.5){
+ best[0][it]=1;
+ }
+ }
+ //
+ // iterative choosing of "best path"
+ //
+ //
+ Int_t label = TMath::Abs(track->GetLabel());
+ Int_t bestiter=0;
+ //
+ for (Int_t iter=0;iter<9;iter++){
+ //
+ changes[iter]= 0;
+ sumz = 0; sum=0; sumdy=0;sumdy2=0;sumx=0;sumx2=0;sumxy=0;mpads=0; ngood[iter]=0; nbad[iter]=0;
+ // linear fit
+ for (Int_t it=0;it<t1-t0;it++){
+ if (!cl[best[iter][it]][it]) continue;
+ //calculates pad-row changes
+ Double_t zbefore= cl[best[iter][it]][it]->GetZ();
+ Double_t zafter = cl[best[iter][it]][it]->GetZ();
+ for (Int_t itd = it-1; itd>=0;itd--) {
+ if (cl[best[iter][itd]][itd]) {
+ zbefore= cl[best[iter][itd]][itd]->GetZ();
+ break;
+ }
+ }
+ for (Int_t itd = it+1; itd<t1-t0;itd++) {
+ if (cl[best[iter][itd]][itd]) {
+ zafter= cl[best[iter][itd]][itd]->GetZ();
+ break;
+ }
+ }
+ if (TMath::Abs(cl[best[iter][it]][it]->GetZ()-zbefore)>0.1&&TMath::Abs(cl[best[iter][it]][it]->GetZ()-zafter)>0.1) changes[iter]++;
+ //
+ Double_t dx = x[it]-xmean; // distance to reference x
+ sumz += cl[best[iter][it]][it]->GetZ();
+ sum++;
+ sumdy += dy[best[iter][it]][it];
+ sumdy2+= dy[best[iter][it]][it]*dy[best[iter][it]][it];
+ sumx += dx;
+ sumx2 += dx*dx;
+ sumxy += dx*dy[best[iter][it]][it];
+ mpads += cl[best[iter][it]][it]->GetNPads();
+ if (cl[best[iter][it]][it]->GetLabel(0)==label || cl[best[iter][it]][it]->GetLabel(1)==label||cl[best[iter][it]][it]->GetLabel(2)==label){
+ ngood[iter]++;
+ }
+ else{
+ nbad[iter]++;
+ }
+ }
+ //
+ // calculates line parameters
+ //
+ Double_t det = sum*sumx2-sumx*sumx;
+ angle[iter] = (sum*sumxy-sumx*sumdy)/det;
+ mean[iter] = (sumx2*sumdy-sumx*sumxy)/det;
+ meanz[iter] = sumz/sum;
+ moffset[iter] = sumdy/sum;
+ mpads /= sum; // mean number of pads
+ //
+ //
+ Double_t sigma2 = 0; // normalized residuals - for line fit
+ Double_t sigma1 = 0; // normalized residuals - constant fit
+ //
+ for (Int_t it=0;it<t1-t0;it++){
+ if (!cl[best[iter][it]][it]) continue;
+ Double_t dx = x[it]-xmean;
+ Double_t ytr = mean[iter]+angle[iter]*dx;
+ sigma2 += (dy[best[iter][it]][it]-ytr)*(dy[best[iter][it]][it]-ytr);
+ sigma1 += (dy[best[iter][it]][it]-moffset[iter])*(dy[best[iter][it]][it]-moffset[iter]);
+ sum++;
+ }
+ sigma2 /=(sum-2); // normalized residuals
+ sigma1 /=(sum-1); // normalized residuals
+ //
+ smean[iter] = sigma2*(sumx2/det); // estimated error2 of mean
+ sangle[iter] = sigma2*(sum/det); // estimated error2 of angle
+ smeanangle[iter] = sigma2*(-sumx/det); // correlation
+ //
+ //
+ sigmas[iter] = TMath::Sqrt(sigma1); //
+ smoffset[iter]= (sigma1/sum)+0.01*0.01; // sigma of mean offset + unisochronity sigma
+ //
+ // iterative choosing of "better path"
+ //
+ for (Int_t it=0;it<t1-t0;it++){
+ if (!cl[best[iter][it]][it]) continue;
+ //
+ Double_t sigmatr2 = smoffset[iter]+0.5*tany*tany; //add unisochronity + angular effect contribution
+ Double_t sweight = 1./sigmatr2+1./track->fCyy;
+ Double_t weighty = (moffset[iter]/sigmatr2)/sweight; // weighted mean
+ Double_t sigmacl = TMath::Sqrt(sigma1*sigma1+track->fCyy); //
+ Double_t mindist=100000;
+ Int_t ihbest=0;
+ for (Int_t ih=0;ih<10;ih++){
+ if (!cl[ih][it]) break;
+ Double_t dist2 = (dy[ih][it]-weighty)/sigmacl;
+ dist2*=dist2; //chi2 distance
+ if (dist2<mindist){
+ mindist = dist2;
+ ihbest =ih;
+ }
+ }
+ best[iter+1][it]=ihbest;
+ }
+ //
+ // update best hypothesy if better chi2 according tracklet position and angle
+ //
+ Double_t sy2 = smean[iter] + track->fCyy;
+ Double_t sa2 = sangle[iter] + track->fCee;
+ Double_t say = track->fCey;
+ // Double_t chi20 = mean[bestiter]*mean[bestiter]/sy2+angle[bestiter]*angle[bestiter]/sa2;
+ // Double_t chi21 = mean[iter]*mean[iter]/sy2+angle[iter]*angle[iter]/sa2;
+
+ Double_t detchi = sy2*sa2-say*say;
+ Double_t invers[3] = {sa2/detchi, sy2/detchi, -say/detchi}; //inverse value of covariance matrix
+
+ Double_t chi20 = mean[bestiter]*mean[bestiter]*invers[0]+angle[bestiter]*angle[bestiter]*invers[1]+
+ 2.*mean[bestiter]*angle[bestiter]*invers[2];
+ Double_t chi21 = mean[iter]*mean[iter]*invers[0]+angle[iter]*angle[iter]*invers[1]+
+ 2*mean[iter]*angle[iter]*invers[2];
+ tchi2s[iter] =chi21;
+ //
+ if (changes[iter]<=changes[bestiter] && chi21<chi20) {
+ bestiter =iter;
+ }
+ }
+ //
+ //set clusters
+ //
+ Double_t sigma2 = sigmas[0]; // choose as sigma from 0 iteration
+ //if (tchi2s[bestiter]>25.) sigma2*=tchi2s[bestiter]/25.;
+ //if (tchi2s[bestiter]>25.) sigma2=1000.; // dont'accept
+
+ Double_t expectederr = sigma2*sigma2+0.01*0.01;
+ if (mpads>3.5) expectederr += (mpads-3.5)*0.04;
+ if (changes[bestiter]>1) expectederr+= changes[bestiter]*0.01;
+ expectederr+=(0.03*(tany-fgkExB)*(tany-fgkExB))*15;
+ // if (tchi2s[bestiter]>18.) expectederr*= tchi2s[bestiter]/18.;
+ //expectederr+=10000;
+ for (Int_t it=0;it<t1-t0;it++){
+ if (!cl[best[bestiter][it]][it]) continue;
+ Float_t poscor = fgkCoef*(cl[best[bestiter][it]][it]->GetLocalTimeBin() - fgkMean)+fgkOffset;
+ cl[best[bestiter][it]][it]->SetSigmaY2(expectederr); // set cluster error
+ if (!cl[best[bestiter][it]][it]->IsUsed()){
+ cl[best[bestiter][it]][it]->SetY( cl[best[bestiter][it]][it]->GetY()-poscor); // ExB corrction correction
+ cl[best[bestiter][it]][it]->Use();
+ }
+ clusters[it+t0] = indexes[best[bestiter][it]][it];
+ }
+ //
+ // set tracklet parameters
+ //
+ Double_t trackleterr2 = smoffset[bestiter]+0.01*0.01;
+ if (mpads>3.5) trackleterr2 += (mpads-3.5)*0.04;
+ trackleterr2+= changes[bestiter]*0.01;
+ trackleterr2*= TMath::Max(14.-nfound,1.);
+ trackleterr2+= 0.2*(tany-fgkExB)*(tany-fgkExB);
+ //
+ tracklet.Set(xmean, track2.GetY()+moffset[bestiter], meanz[bestiter], track2.GetAlpha(), trackleterr2); //set tracklet parameters
+ tracklet.SetTilt(h01);
+ tracklet.SetP0(mean[bestiter]);
+ tracklet.SetP1(angle[bestiter]);
+ tracklet.SetN(nfound);
+ tracklet.SetNCross(changes[bestiter]);
+ tracklet.SetPlane(plane);
+ tracklet.SetSigma2(expectederr);
+ tracklet.SetChi2(tchi2s[bestiter]);
+ track->fTracklets[plane] = tracklet;
+ track->fNWrong+=nbad[0];
+ //
+ // Debuging part
+ //
+ TTreeSRedirector& cstream = *fDebugStreamer;
+ AliTRDcluster dummy;
+ Double_t dy0[100];
+ Double_t dyb[100];
+ for (Int_t it=0;it<t1-t0;it++){
+ dy0[it] = dy[0][it];
+ dyb[it] = dy[best[bestiter][it]][it];
+ if(cl[0][it]) {
+ new(array0[it]) AliTRDcluster(*cl[0][it]);
+ }
+ else{
+ new(array0[it]) AliTRDcluster(dummy);
+ }
+ if(cl[best[bestiter][it]][it]) {
+ new(array1[it]) AliTRDcluster(*cl[best[bestiter][it]][it]);
+ }
+ else{
+ new(array1[it]) AliTRDcluster(dummy);
+ }
+ }
+ TGraph graph0(t1-t0,x,dy0);
+ TGraph graph1(t1-t0,x,dyb);
+ TGraph graphy(t1-t0,x,yt);
+ TGraph graphz(t1-t0,x,zt);
+ //
+ //
+ cstream<<"tracklet"<<
+ "track.="<<track<< // track parameters
+ "tany="<<tany<< // tangent of the local track angle
+ "xmean="<<xmean<< // xmean - reference x of tracklet
+ "tilt="<<h01<< // tilt angle
+ "nall="<<nall<< // number of foundable clusters
+ "nfound="<<nfound<< // number of found clusters
+ "clfound="<<clfound<< // total number of found clusters in road
+ "mpads="<<mpads<< // mean number of pads per cluster
+ "plane="<<plane<< // plane number
+ "road="<<road<< // the width of the used road
+ "graph0.="<<&graph0<< // x - y = dy for closest cluster
+ "graph1.="<<&graph1<< // x - y = dy for second closest cluster
+ "graphy.="<<&graphy<< // y position of the track
+ "graphz.="<<&graphz<< // z position of the track
+ "fCl.="<<&array0<< // closest cluster
+ "fCl2.="<<&array1<< // second closest cluster
+ //
+ "bestiter="<<bestiter<< // best iteration number
+ "tracklet.="<<&tracklet<< // corrspond to the best iteration
+ "tchi20="<<tchi2s[0]<< // chi2 of cluster in the 0 iteration
+ "tchi2b="<<tchi2s[bestiter]<< // chi2 of cluster in the best iteration
+ "sigmas0="<<sigmas[0]<< // residuals sigma
+ "sigmasb="<<sigmas[bestiter]<< // residulas sigma
+ //
+ "ngood0="<<ngood[0]<< // number of good clusters in 0 iteration
+ "nbad0="<<nbad[0]<< // number of bad clusters in 0 iteration
+ "ngoodb="<<ngood[bestiter]<< // in best iteration
+ "nbadb="<<nbad[bestiter]<< // in best iteration
+ //
+ "changes0="<<changes[0]<< // changes of pardrows in iteration number 0
+ "changesb="<<changes[bestiter]<< // changes of pardrows in best iteration
+ //
+ "moffset0="<<moffset[0]<< // offset fixing angle in iter=0
+ "smoffset0="<<smoffset[0]<< // sigma of offset fixing angle in iter=0
+ "moffsetb="<<moffset[bestiter]<< // offset fixing angle in iter=best
+ "smoffsetb="<<smoffset[bestiter]<< // sigma of offset fixing angle in iter=best
+ //
+ "mean0="<<mean[0]<< // mean dy in iter=0;
+ "smean0="<<smean[0]<< // sigma of mean dy in iter=0
+ "meanb="<<mean[bestiter]<< // mean dy in iter=best
+ "smeanb="<<smean[bestiter]<< // sigma of mean dy in iter=best
+ //
+ "angle0="<<angle[0]<< // angle deviation in the iteration number 0
+ "sangle0="<<sangle[0]<< // sigma of angular deviation in iteration number 0
+ "angleb="<<angle[bestiter]<< // angle deviation in the best iteration
+ "sangleb="<<sangle[bestiter]<< // sigma of angle deviation in the best iteration
+ //
+ "expectederr="<<expectederr<< // expected error of cluster position
+ "\n";
+ //
+ //
+ return nfound;
+}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff