#include <TString.h>
#include <TRandom.h>
#include <TTreeStream.h>
+#include <TVector3.h>
#include "AliLog.h"
#include "AliGeomManager.h"
#include "AliITStrackerMI.h"
#include "AliMathBase.h"
+
ClassImp(AliITStrackerMI)
AliITStrackerMI::AliITSlayer AliITStrackerMI::fgLayers[AliITSgeomTGeo::kNLayers]; // ITS layers
fTrackingPhase("Default"),
fUseTGeo(3),
fNtracks(0),
+fFlagFakes(kFALSE),
+fSelectBestMIP03(kFALSE),
+fUseImproveKalman(kFALSE),
fxOverX0Pipe(-1.),
fxTimesRhoPipe(-1.),
fxOverX0PipeTrks(0),
//Default constructor
Int_t i;
for(i=0;i<4;i++) fSPDdetzcentre[i]=0.;
- for(i=0;i<2;i++) {fxOverX0Shield[i]=-1.;fxTimesRhoShield[i]=-1.;}
+ for(i=0;i<2;i++) {
+ fxOverX0Shield[i]=-1.;
+ fxTimesRhoShield[i]=-1.;
+ fConstraint[i]=0;
+ }
for(i=0;i<6;i++) {fxOverX0Layer[i]=-1.;fxTimesRhoLayer[i]=-1.;}
+ fOriginal.SetOwner();
+ for(i=0;i<AliITSgeomTGeo::kNLayers;i++)fForceSkippingOfLayer[i]=0;
+ for(i=0;i<100000;i++)fBestTrackIndex[i]=0;
+
}
//------------------------------------------------------------------------
AliITStrackerMI::AliITStrackerMI(const Char_t *geom) : AliTracker(),
fTrackingPhase("Default"),
fUseTGeo(3),
fNtracks(0),
+fFlagFakes(kFALSE),
+fSelectBestMIP03(kFALSE),
+fUseImproveKalman(kFALSE),
fxOverX0Pipe(-1.),
fxTimesRhoPipe(-1.),
fxOverX0PipeTrks(0),
AliWarning("\"geom\" is actually a dummy argument !");
}
+ fOriginal.SetOwner();
fCoefficients = 0;
fAfterV0 = kFALSE;
} // end loop on detectors
} // end loop on ladders
- fForceSkippingOfLayer[i] = 0;
+ fForceSkippingOfLayer[i-1] = 0;
} // end loop on layers
// store positions of centre of SPD modules (in z)
// The convetion is that fSPDdetzcentre is ordered from -z to +z
Double_t tr[3];
+ AliITSgeomTGeo::GetTranslation(1,1,1,tr);
if (tr[2]<0) { // old geom (up to v5asymmPPR)
AliITSgeomTGeo::GetTranslation(1,1,1,tr);
fSPDdetzcentre[0] = tr[2];
for(Int_t i=0;i<2;i++) {fxOverX0Shield[i]=-1.;fxTimesRhoShield[i]=-1.;}
for(Int_t i=0;i<6;i++) {fxOverX0Layer[i]=-1.;fxTimesRhoLayer[i]=-1.;}
- fDebugStreamer = new TTreeSRedirector("ITSdebug.root");
+ if (AliITSReconstructor::GetRecoParam()->GetESDV0Params()->StreamLevel()>0)
+ fDebugStreamer = new TTreeSRedirector("ITSdebug.root");
// only for plane efficiency evaluation
if (AliITSReconstructor::GetRecoParam()->GetComputePlaneEff() &&
if(!fPlaneEff->ReadFromCDB()) {AliWarning("AliITStrackerMI reading of AliITSPlaneEff from OCDB failed") ;}
if(AliITSReconstructor::GetRecoParam()->GetHistoPlaneEff()) fPlaneEff->SetCreateHistos(kTRUE);
}
+ //
+ // RS
+ fSelectBestMIP03 = AliITSReconstructor::GetRecoParam()->GetSelectBestMIP03();
+ fFlagFakes = AliITSReconstructor::GetRecoParam()->GetFlagFakes();
+ fUseImproveKalman = AliITSReconstructor::GetRecoParam()->GetUseImproveKalman();
+ //
}
+/*
//------------------------------------------------------------------------
AliITStrackerMI::AliITStrackerMI(const AliITStrackerMI &tracker):AliTracker(tracker),
fI(tracker.fI),
fTrackingPhase(tracker.fTrackingPhase),
fUseTGeo(tracker.fUseTGeo),
fNtracks(tracker.fNtracks),
+fFlagFakes(tracker.fFlagFakes),
+fSelectBestMIP03(tracker.fSelectBestMIP03),
fxOverX0Pipe(tracker.fxOverX0Pipe),
fxTimesRhoPipe(tracker.fxTimesRhoPipe),
fxOverX0PipeTrks(0),
fkDetTypeRec(tracker.fkDetTypeRec),
fPlaneEff(tracker.fPlaneEff) {
//Copy constructor
+ fOriginal.SetOwner();
Int_t i;
for(i=0;i<4;i++) {
fSPDdetzcentre[i]=tracker.fSPDdetzcentre[i];
fxTimesRhoShield[i]=tracker.fxTimesRhoShield[i];
}
}
+
//------------------------------------------------------------------------
AliITStrackerMI & AliITStrackerMI::operator=(const AliITStrackerMI &tracker){
//Assignment operator
new(this) AliITStrackerMI(tracker);
return *this;
}
+*/
//------------------------------------------------------------------------
AliITStrackerMI::~AliITStrackerMI()
{
if(det.IsBad()) {nBadDetsPerLayer++;}
} // end loop on detectors
} // end loop on ladders
- Info("ReadBadFromDetTypeRec",Form("Layer %d: %d bad out of %d",i-1,nBadDetsPerLayer,ndet*AliITSgeomTGeo::GetNLadders(i)));
+ AliInfo(Form("Layer %d: %d bad out of %d",i-1,nBadDetsPerLayer,ndet*AliITSgeomTGeo::GetNLadders(i)));
} // end loop on layers
return;
TClonesArray *clusters = NULL;
AliITSRecPointContainer* rpcont=AliITSRecPointContainer::Instance();
clusters=rpcont->FetchClusters(0,cTree);
+ if(!clusters) return 1;
+
if(!(rpcont->IsSPDActive() || rpcont->IsSDDActive() || rpcont->IsSSDActive())){
AliError("ITS is not in a known running configuration: SPD, SDD and SSD are not active");
return 1;
Int_t lab[4] = {0,0,0,detector};
Int_t info[3] = {0,0,i};
Float_t q = 0.; // this identifies virtual clusters
- Float_t hit[5] = {xdead,
+ Float_t hit[6] = {xdead,
0.,
AliITSReconstructor::GetRecoParam()->GetSigmaXDeadZoneHit2(),
AliITSReconstructor::GetRecoParam()->GetSigmaZDeadZoneHit2(),
- q};
+ q,
+ 0.};
Bool_t local = kTRUE;
Double_t zwindow = AliITSReconstructor::GetRecoParam()->GetZWindowDeadZone();
hit[1] = fSPDdetzcentre[0]+0.5*AliITSRecoParam::GetSPDdetzlength();
if (esd->GetStatus()&AliESDtrack::kTPCout) continue;
if (esd->GetStatus()&AliESDtrack::kITSin) continue;
if (esd->GetKinkIndex(0)>0) continue; //kink daughter
- AliITStrackMI *t=0;
- try {
- t=new AliITStrackMI(*esd);
- } catch (const Char_t *msg) {
- //Warning("Clusters2Tracks",msg);
- delete t;
- continue;
- }
+ AliITStrackMI *t = new AliITStrackMI(*esd);
t->GetDZ(GetX(),GetY(),GetZ(),t->GetDP()); //I.B.
Double_t vdist = TMath::Sqrt(t->GetD(0)*t->GetD(0)+t->GetD(1)*t->GetD(1));
SortTrackHypothesys(fCurrentEsdTrack,20,0); //MI change
//
AliITStrackMI *besttrack = GetBestHypothesys(fCurrentEsdTrack,t,15);
+ t->SetWinner(besttrack);
if (!besttrack) continue;
besttrack->SetLabel(tpcLabel);
// besttrack->CookdEdx();
besttrack->SetFakeRatio(1.);
CookLabel(besttrack,0.); //For comparison only
UpdateESDtrack(besttrack,AliESDtrack::kITSin);
+ t->SetWinner(besttrack);
if (fConstraint[fPass]&&(!besttrack->IsGoldPrimary())) continue; //to be tracked also without vertex constrain
}
GetBestHypothesysMIP(itsTracks);
} // end loop on the two tracking passes
-
+ //
+ if (fFlagFakes) FlagFakes(itsTracks);
+ //
if(event->GetNumberOfV0s()>0) AliITSV0Finder::UpdateTPCV0(event,this);
if(AliITSReconstructor::GetRecoParam()->GetFindV0s()) AliITSV0Finder::FindV02(event,this);
fAfterV0 = kTRUE;
//
- itsTracks.Delete();
+ itsTracks.Clear();
//
Int_t entries = fTrackHypothesys.GetEntriesFast();
for (Int_t ientry=0; ientry<entries; ientry++) {
if ((esd->GetStatus()&AliESDtrack::kITSin)==0) continue;
if (esd->GetStatus()&AliESDtrack::kITSout) continue;
- AliITStrackMI *t=0;
- try {
- t=new AliITStrackMI(*esd);
- } catch (const Char_t *msg) {
- //Warning("PropagateBack",msg);
- delete t;
- continue;
- }
+ AliITStrackMI *t = new AliITStrackMI(*esd);
+
t->SetExpQ(TMath::Max(0.8*t->GetESDtrack()->GetTPCsignal(),30.));
ResetTrackToFollow(*t);
if(AliITSReconstructor::GetRecoParam()->GetFindV0s()) AliITSV0Finder::RefitV02(event,this);
+ Bool_t doExtra=AliITSReconstructor::GetRecoParam()->GetSearchForExtraClusters();
+ if(!doExtra) AliDebug(2,"Do not search for extra clusters");
+
Int_t nentr=event->GetNumberOfTracks();
// Info("RefitInward", "Number of ESD tracks: %d\n", nentr);
if (esd->GetStatus()&AliESDtrack::kTPCout)
if ((esd->GetStatus()&AliESDtrack::kTPCrefit)==0) continue;
- AliITStrackMI *t=0;
- try {
- t=new AliITStrackMI(*esd);
- } catch (const Char_t *msg) {
- //Warning("RefitInward",msg);
- delete t;
- continue;
- }
+ AliITStrackMI *t = new AliITStrackMI(*esd);
+
t->SetExpQ(TMath::Max(0.8*t->GetESDtrack()->GetTPCsignal(),30.));
if (!CorrectForTPCtoITSDeadZoneMaterial(t)) {
delete t;
ResetTrackToFollow(*t);
fTrackToFollow.ResetClusters();
- if ((esd->GetStatus()&AliESDtrack::kTPCin)==0)
+ // ITS standalone tracks
+ if ((esd->GetStatus()&AliESDtrack::kTPCin)==0) {
fTrackToFollow.ResetCovariance(10.);
+ // protection for loopers that can have parameters screwed up
+ if(TMath::Abs(fTrackToFollow.GetY())>1000. ||
+ TMath::Abs(fTrackToFollow.GetZ())>1000.) {
+ delete t;
+ continue;
+ }
+ }
//Refitting...
Bool_t pe=(AliITSReconstructor::GetRecoParam()->GetComputePlaneEff() &&
AliITSReconstructor::GetRecoParam()->GetIPlanePlaneEff()>=0);
AliDebug(2,Form("Refit LABEL %d %d",t->GetLabel(),t->GetNumberOfClusters()));
- if (RefitAt(AliITSRecoParam::GetrInsideSPD1(),&fTrackToFollow,t,kTRUE,pe)) {
+ if (RefitAt(AliITSRecoParam::GetrInsideSPD1(),&fTrackToFollow,t,doExtra,pe)) {
AliDebug(2," refit OK");
fTrackToFollow.SetLabel(t->GetLabel());
// fTrackToFollow.CookdEdx();
detxy[1] = det.GetR()*TMath::Sin(det.GetPhi());
Double_t alpha = t->GetAlpha();
Double_t xdetintrackframe = detxy[0]*TMath::Cos(alpha)+detxy[1]*TMath::Sin(alpha);
- Float_t phi = TMath::ASin(t->GetSnpAt(xdetintrackframe,GetBz()));
+ Float_t phi = TMath::ASin(t->GetSnpAt(xdetintrackframe+cl->GetX(),GetBz()));
phi += alpha-det.GetPhi();
Float_t tgphi = TMath::Tan(phi);
//
//setup tree of the prolongations
//
- static AliITStrackMI tracks[7][100];
+ const int kMaxTr = 100; //RS
+ static AliITStrackMI tracks[7][kMaxTr];
AliITStrackMI *currenttrack;
static AliITStrackMI currenttrack1;
static AliITStrackMI currenttrack2;
static AliITStrackMI backuptrack;
Int_t ntracks[7];
- Int_t nindexes[7][100];
- Float_t normalizedchi2[100];
+ Int_t nindexes[7][kMaxTr];
+ Float_t normalizedchi2[kMaxTr];
for (Int_t ilayer=0;ilayer<6;ilayer++) ntracks[ilayer]=0;
otrack->SetNSkipped(0);
new (&(tracks[6][0])) AliITStrackMI(*otrack);
Int_t nskipped=0;
Float_t nused =0;
for (Int_t itrack =0; itrack<ntracks[ilayer+1]; itrack++) {
+ // printf("LR %d Tr:%d NSeeds: %d\n",ilayer,itrack,ntracks[ilayer+1]);
//set current track
- if (ntracks[ilayer]>=100) break;
+ if (ntracks[ilayer]>=kMaxTr) break;
if (tracks[ilayer+1][nindexes[ilayer+1][itrack]].GetNSkipped()>0) nskipped++;
if (tracks[ilayer+1][nindexes[ilayer+1][itrack]].GetNUsed()>2.) nused++;
if (ntracks[ilayer]>15+ilayer){
if (!currenttrack1.GetXYZ(trackGlobXYZ1)) continue;
// Get the budget to the primary vertex for the current track being prolonged
- Double_t budgetToPrimVertex = GetEffectiveThickness();
-
+ Double_t budgetToPrimVertex = 0;
+ double xMSLrs[9],x2X0MSLrs[9]; // needed for ImproveKalman
+ int nMSLrs = 0;
+ //
+ if (fUseImproveKalman) nMSLrs = GetEffectiveThicknessLbyL(xMSLrs,x2X0MSLrs);
+ else budgetToPrimVertex = GetEffectiveThickness();
+ //
// check if we allow a prolongation without point
Int_t skip = CheckSkipLayer(¤ttrack1,ilayer,idet);
if (skip) {
if(LocalModuleCoord(ilayer,idet,vtrack,xloc,zloc)) { // local module coords
vtrack->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
}
- if(constrain) vtrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx);
+ if(constrain && AliITSReconstructor::GetRecoParam()->GetImproveWithVertex()) {
+ fUseImproveKalman ?
+ vtrack->ImproveKalman(xyzVtx,ersVtx,xMSLrs,x2X0MSLrs,nMSLrs) :
+ vtrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx);
+ }
ntracks[ilayer]++;
continue;
}
//propagate to the intersection with the detector plane
const AliITSdetector &det=layer.GetDetector(idet);
+ /*
new(¤ttrack2) AliITStrackMI(currenttrack1);
if (!currenttrack1.Propagate(det.GetPhi(),det.GetR())) continue;
if (!currenttrack2.Propagate(det.GetPhi(),det.GetR())) continue;
currenttrack1.SetDetectorIndex(idet);
currenttrack2.SetDetectorIndex(idet);
+ */
+ if (!currenttrack1.Propagate(det.GetPhi(),det.GetR())) continue;
+ currenttrack1.SetDetectorIndex(idet);
+ new(¤ttrack2) AliITStrackMI(currenttrack1);
+ //
if(!LocalModuleCoord(ilayer,idet,¤ttrack1,xloc,zloc)) continue; // local module coords
//***************
TMath::Abs(updatetrack->GetD(1)/(1.+ilayer)) > // z
AliITSReconstructor::GetRecoParam()->GetMaxDZforPrimTrk()) isPrim=kFALSE;
}
- if (isPrim) updatetrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx);
+ if (isPrim && AliITSReconstructor::GetRecoParam()->GetImproveWithVertex()) {
+ fUseImproveKalman ?
+ updatetrack->ImproveKalman(xyzVtx,ersVtx,xMSLrs,x2X0MSLrs,nMSLrs) :
+ updatetrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx);
+ }
}
updatetrack->SetNDeadZone(updatetrack->GetNDeadZone()+1);
if (dead) {
clidx=-1;
// loop over clusters in the road
while ((cl=layer.GetNextCluster(clidx))!=0) {
- if (ntracks[ilayer]>95) break; //space for skipped clusters
+ if (ntracks[ilayer]>int(0.95*kMaxTr)) break; //space for skipped clusters
Bool_t changedet =kFALSE;
if (TMath::Abs(cl->GetQ())<1.e-13 && deadzoneSPD==kTRUE) continue;
Int_t idetc=cl->GetDetectorIndex();
(currenttrack->GetY()-cl->GetY())*(currenttrack->GetY()-cl->GetY())*msy > 1. )
{ // cluster not associated to track
AliDebug(2,"not associated");
+ // MvL: added here as well
+ // bring track back to ideal detector plane
+ currenttrack->Propagate(xTrOrig);
continue;
}
// bring track back to ideal detector plane
AliDebug(2,Form("chi2 %f max %f",chi2trkcl,AliITSReconstructor::GetRecoParam()->GetMaxChi2s(ilayer)));
if (chi2trkcl < AliITSReconstructor::GetRecoParam()->GetMaxChi2s(ilayer)) {
if (TMath::Abs(cl->GetQ())<1.e-13) deadzoneSPD=kTRUE; // only 1 prolongation with virtual cluster
- if (ntracks[ilayer]>=100) continue;
+ if (ntracks[ilayer]>=kMaxTr) continue;
AliITStrackMI * updatetrack = new (&tracks[ilayer][ntracks[ilayer]]) AliITStrackMI(*currenttrack);
updatetrack->SetClIndex(ilayer,-1);
if (changedet) new (¤ttrack2) AliITStrackMI(backuptrack);
TMath::Abs(updatetrack->GetD(1)/(1.+ilayer)) > // z
AliITSReconstructor::GetRecoParam()->GetMaxDZforPrimTrk()) isPrim=kFALSE;
}
- if (isPrim) updatetrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx);
+ if (isPrim && AliITSReconstructor::GetRecoParam()->GetImproveWithVertex()) {
+ fUseImproveKalman ?
+ updatetrack->ImproveKalman(xyzVtx,ersVtx,xMSLrs,x2X0MSLrs,nMSLrs) :
+ updatetrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx);
+ }
} //apply vertex constrain
ntracks[ilayer]++;
} // create new hypothesis
} // loop over possible prolongations
// allow one prolongation without clusters
- if (constrain && itrack<=1 && TMath::Abs(currenttrack1.GetNSkipped())<1.e-13 && deadzoneSPD==kFALSE && ntracks[ilayer]<100) {
+ if (constrain && itrack<=1 && TMath::Abs(currenttrack1.GetNSkipped())<1.e-13 && deadzoneSPD==kFALSE && ntracks[ilayer]<kMaxTr) {
AliITStrackMI* vtrack = new (&tracks[ilayer][ntracks[ilayer]]) AliITStrackMI(currenttrack1);
// apply correction for material of the current layer
CorrectForLayerMaterial(vtrack,ilayer,trackGlobXYZ1,"inward");
vtrack->SetClIndex(ilayer,-1);
modstatus = 3; // skipped
vtrack->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
- vtrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx);
+ if(AliITSReconstructor::GetRecoParam()->GetImproveWithVertex()) {
+ fUseImproveKalman ?
+ vtrack->ImproveKalman(xyzVtx,ersVtx,xMSLrs,x2X0MSLrs,nMSLrs) :
+ vtrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx);
+ }
vtrack->IncrementNSkipped();
ntracks[ilayer]++;
}
TMath::Sort(ntracks[ilayer],normalizedchi2,nindexes[ilayer],kFALSE);
ntracks[ilayer] = TMath::Min(accepted,7+2*ilayer);
if (ntracks[ilayer]<golden+2+ilayer) ntracks[ilayer]=TMath::Min(golden+2+ilayer,accepted);
- if (ntracks[ilayer]>90) ntracks[ilayer]=90;
+ // if (ntracks[ilayer]>90) ntracks[ilayer]=90;
+ if (ntracks[ilayer]>=int(kMaxTr*0.9)) ntracks[ilayer]=int(kMaxTr*0.9);
} // end loop over layers
for (Int_t i=0;i<TMath::Min(2,ntracks[2]);i++) {
AliITStrackMI & track= tracks[2][nindexes[2][i]];
if (track.GetNumberOfClusters()<3) continue;
- if (!constrain && track.GetNormChi2(2) >
+ if (track.GetNormChi2(2) >
AliITSReconstructor::GetRecoParam()->GetMaxNormChi2NonCForHypothesis()) continue;
- if (constrain) track.SetNSkipped(track.GetNSkipped()+2);
- if (!constrain){
- track.SetD(0,track.GetD(GetX(),GetY()));
- track.SetNSkipped(track.GetNSkipped()+7./(7.+8.*TMath::Abs(track.GetD(0))));
- if (track.GetNumberOfClusters()+track.GetNDeadZone()+track.GetNSkipped()>6) {
- track.SetNSkipped(6-track.GetNumberOfClusters()+track.GetNDeadZone());
- }
+ track.SetD(0,track.GetD(GetX(),GetY()));
+ track.SetNSkipped(track.GetNSkipped()+7./(7.+8.*TMath::Abs(track.GetD(0))));
+ if (track.GetNumberOfClusters()+track.GetNDeadZone()+track.GetNSkipped()>6) {
+ track.SetNSkipped(6-track.GetNumberOfClusters()+track.GetNDeadZone());
}
AddTrackHypothesys(new AliITStrackMI(track), esdindex);
}
Double_t xrp[3]; vertex->GetXYZ(xrp[0],xrp[1],xrp[2]); //I.B.
Int_t nearestold = GetNearestLayer(xrp); //I.B.
Int_t nearest = nearestold;
- for (Int_t ilayer =nearest;ilayer<8;ilayer++){
+ for (Int_t ilayer =nearest;ilayer<7;ilayer++){
if (ntracks[nearest]==0){
nearest = ilayer;
}
fClusterTracks[0][i]=-1;
fClusterTracks[1][i]=-1;
fClusterTracks[2][i]=-1;
- fClusterTracks[3][i]=-1;
+ fClusterTracks[3][i]=-1;
+ fY[i]=0;
+ fZ[i]=0;
+ }
+ fYB[0]=0;
+ fYB[1]=0;
+
+ for (Int_t j=0; j<AliITSRecoParam::fgkMaxClusterPerLayer5; j++) {
+ for (Int_t j1=0; j1<6; j1++) {
+ fClusters5[j1][j]=0;
+ fClusterIndex5[j1][j]=-1;
+ fY5[j1][j]=0;
+ fZ5[j1][j]=0;
+ fN5[j1]=0;
+ fBy5[j1][0]=0;
+ fBy5[j1][1]=0;
+ }
+ }
+
+ for (Int_t j=0; j<AliITSRecoParam::fgkMaxClusterPerLayer10; j++) {
+ for (Int_t j1=0; j1<11; j1++) {
+ fClusters10[j1][j]=0;
+ fClusterIndex10[j1][j]=-1;
+ fY10[j1][j]=0;
+ fZ10[j1][j]=0;
+ fN10[j1]=0;
+ fBy10[j1][0]=0;
+ fBy10[j1][1]=0;
+ }
+ }
+
+ for (Int_t j=0; j<AliITSRecoParam::fgkMaxClusterPerLayer20; j++) {
+ for (Int_t j1=0; j1<21; j1++) {
+ fClusters20[j1][j]=0;
+ fClusterIndex20[j1][j]=-1;
+ fY20[j1][j]=0;
+ fZ20[j1][j]=0;
+ fN20[j1]=0;
+ fBy20[j1][0]=0;
+ fBy20[j1][1]=0;
+ }
+ }
+ for(Int_t i=0;i<AliITSRecoParam::fgkMaxClusterPerLayer;i++){
+ fClusters[i]=NULL;
+ fClusterIndex[i]=0;
}
}
//------------------------------------------------------------------------
//--------------------------------------------------------------------
fDetectors=new AliITSdetector[fNladders*fNdetectors];
fRoad=2*fR*TMath::Sqrt(TMath::Pi()/1.);//assuming that there's only one cluster
+
+ for (Int_t i=0; i<AliITSRecoParam::GetMaxClusterPerLayer(); i++) {
+ fClusterWeight[i]=0;
+ fClusterTracks[0][i]=-1;
+ fClusterTracks[1][i]=-1;
+ fClusterTracks[2][i]=-1;
+ fClusterTracks[3][i]=-1;
+ fY[i]=0;
+ fZ[i]=0;
+ }
+
+ fYB[0]=0;
+ fYB[1]=0;
+
+ for (Int_t j=0; j<AliITSRecoParam::fgkMaxClusterPerLayer5; j++) {
+ for (Int_t j1=0; j1<6; j1++) {
+ fClusters5[j1][j]=0;
+ fClusterIndex5[j1][j]=-1;
+ fY5[j1][j]=0;
+ fZ5[j1][j]=0;
+ fN5[j1]=0;
+ fBy5[j1][0]=0;
+ fBy5[j1][1]=0;
+ }
+ }
+
+ for (Int_t j=0; j<AliITSRecoParam::fgkMaxClusterPerLayer10; j++) {
+ for (Int_t j1=0; j1<11; j1++) {
+ fClusters10[j1][j]=0;
+ fClusterIndex10[j1][j]=-1;
+ fY10[j1][j]=0;
+ fZ10[j1][j]=0;
+ fN10[j1]=0;
+ fBy10[j1][0]=0;
+ fBy10[j1][1]=0;
+ }
+ }
+
+ for (Int_t j=0; j<AliITSRecoParam::fgkMaxClusterPerLayer20; j++) {
+ for (Int_t j1=0; j1<21; j1++) {
+ fClusters20[j1][j]=0;
+ fClusterIndex20[j1][j]=-1;
+ fY20[j1][j]=0;
+ fZ20[j1][j]=0;
+ fN20[j1]=0;
+ fBy20[j1][0]=0;
+ fBy20[j1][1]=0;
+ }
+ }
+ for(Int_t i=0;i<AliITSRecoParam::fgkMaxClusterPerLayer;i++){
+ fClusters[i]=NULL;
+ fClusterIndex[i]=0;
+ }
}
+/*
//------------------------------------------------------------------------
AliITStrackerMI::AliITSlayer::AliITSlayer(const AliITSlayer& layer):
fR(layer.fR),
{
//Copy constructor
}
+*/
//------------------------------------------------------------------------
AliITStrackerMI::AliITSlayer::~AliITSlayer() {
//--------------------------------------------------------------------
}
return d/(xn*xn);
}
+
+//------------------------------------------------------------------------
+Int_t AliITStrackerMI::GetEffectiveThicknessLbyL(Double_t* xMS, Double_t* x2x0MS)
+{
+ //--------------------------------------------------------------------
+ // Returns the array of layers between the current layer and the vertex
+ //--------------------------------------------------------------------
+ //
+ if(fUseTGeo!=0) {
+ if(fxOverX0Layer[0]<0) BuildMaterialLUT("Layers");
+ if(fxOverX0Shield[0]<0) BuildMaterialLUT("Shields");
+ if(fxOverX0Pipe<0) BuildMaterialLUT("Pipe");
+ }
+
+ int nl = 0;
+ double x0 = 0;
+ for (int il=fI;il--;) {
+ //
+ if (il==3) {
+ x2x0MS[nl] = (fUseTGeo==0 ? AliITSRecoParam::Getdshield(1) : fxOverX0Shield[1]);
+ xMS[nl++] = AliITSRecoParam::GetrInsideShield(1);
+ }
+ else if (il==1) {
+ x2x0MS[nl] = (fUseTGeo==0 ? AliITSRecoParam::Getdshield(0) : fxOverX0Shield[0]);
+ xMS[nl++] = AliITSRecoParam::GetrInsideShield(0);
+ }
+ //
+ x2x0MS[nl] = (fUseTGeo==0 ? fgLayers[il].GetThickness(0,0,x0) : fxOverX0Layer[il]);
+ xMS[nl++] = fgLayers[il].GetR();
+ //
+ }
+ //
+ // beam pipe
+ x2x0MS[nl] = (fUseTGeo==0 ? AliITSRecoParam::GetdPipe() : fxOverX0Pipe);
+ xMS[nl++] = AliITSRecoParam::GetrPipe();
+ //
+ return nl;
+}
+
+
//------------------------------------------------------------------------
Int_t AliITStrackerMI::AliITSlayer::InRoad() const {
//-------------------------------------------------------------------
index[k]=clusters[k];
}
- // special for cosmics: check which the innermost layer crossed
- // by the track
- Int_t innermostlayer=5;
- Double_t drphi = TMath::Abs(track->GetD(0.,0.));
- for(innermostlayer=0; innermostlayer<AliITSgeomTGeo::GetNLayers(); innermostlayer++) {
- if(drphi < fgLayers[innermostlayer].GetR()) break;
+ // special for cosmics and TPC prolonged tracks:
+ // propagate to the innermost of:
+ // - innermost layer crossed by the track
+ // - innermost layer where a cluster was associated to the track
+ static AliITSRecoParam *repa = NULL;
+ if(!repa){
+ repa = (AliITSRecoParam*) AliITSReconstructor::GetRecoParam();
+ if(!repa){
+ repa = AliITSRecoParam::GetHighFluxParam();
+ AliWarning("Using default AliITSRecoParam class");
+ }
+ }
+ Int_t evsp=repa->GetEventSpecie();
+ ULong_t trStatus=0;
+ if(track->GetESDtrack()) trStatus=track->GetStatus();
+ Int_t innermostlayer=0;
+ if((evsp&AliRecoParam::kCosmic) || (trStatus&AliESDtrack::kTPCin)) {
+ innermostlayer=5;
+ Double_t drphi = TMath::Abs(track->GetD(0.,0.));
+ for(innermostlayer=0; innermostlayer<AliITSgeomTGeo::GetNLayers(); innermostlayer++) {
+ if( (drphi < (fgLayers[innermostlayer].GetR()+1.)) ||
+ index[innermostlayer] >= 0 ) break;
+ }
+
+ AliDebug(2,Form(" drphi %f innermost %d",drphi,innermostlayer));
}
- AliDebug(2,Form(" drphi %f innermost %d",drphi,innermostlayer));
Int_t modstatus=1; // found
Float_t xloc,zloc;
track->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
- if (extra) { // search for extra clusters in overlapped modules
+ if (extra && clAcc) { // search for extra clusters in overlapped modules
AliITStrackV2 tmp(*track);
if (!ComputeRoad(track,ilayer,idet,zmin,zmax,ymin,ymax)) return kFALSE;
layer.SelectClusters(zmin,zmax,ymin,ymax);
Int_t nDeadZoneWithProbNot1=(Int_t)(track->GetNDeadZone())-sumDeadZoneProbability;
if(nDeadZoneWithProbNot1>0) {
Float_t deadZoneProbability = track->GetNDeadZone()-(Float_t)sumDeadZoneProbability;
- AliDebug(2,Form("nDeadZone %f sumDZProbability %f nDZWithProbNot1 %f deadZoneProb %f\n",track->GetNDeadZone(),sumDeadZoneProbability,nDeadZoneWithProbNot1,deadZoneProbability));
+ AliDebug(2,Form("nDeadZone %f sumDZProbability %d nDZWithProbNot1 %d deadZoneProb %f\n",track->GetNDeadZone(),sumDeadZoneProbability,nDeadZoneWithProbNot1,deadZoneProbability));
deadZoneProbability /= (Float_t)nDeadZoneWithProbNot1;
Float_t one = 1.;
deadZoneProbability = TMath::Min(deadZoneProbability,one);
Double_t normchi2 = 2*track->GetNSkipped()+match+deadzonefactor+(1+(2*track->GetNSkipped()+deadzonefactor)/track->GetNumberOfClusters())*
(chi2)/TMath::Max(double(sum-track->GetNSkipped()),
1./(1.+track->GetNSkipped()));
- AliDebug(2,Form("match %f deadzonefactor %f chi2 %f sum %f skipped\n",match,deadzonefactor,chi2,sum,track->GetNSkipped()));
+ AliDebug(2,Form("match %f deadzonefactor %f chi2 %f sum %f skipped %f\n",match,deadzonefactor,chi2,sum,track->GetNSkipped()));
AliDebug(2,Form("NormChi2 %f cls %d\n",normchi2,track->GetNumberOfClusters()));
return normchi2;
}
Int_t l=(index & 0xf0000000) >> 28;
Int_t c=(index & 0x0fffffff) >> 00;
if (c>fgLayers[l].GetNumberOfClusters()) continue;
- if (ny[l]<1.e-13){
- printf("problem\n");
- }
+ // if (ny[l]<1.e-13){
+ // printf("problem\n");
+ // }
AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(index);
Float_t weight=1;
//
if (fgLayers[l].GetClusterTracks(itrack,c)>=0 && fgLayers[l].GetClusterTracks(itrack,c)!=id){
list[l]=index;
clist[l] = (AliITSRecPoint*)GetCluster(index);
+ track->SetSharedWeight(l,weight);
shared+=weight;
break;
}
Int_t index = clusterlist[icluster];
Int_t l=(index & 0xf0000000) >> 28;
Int_t c=(index & 0x0fffffff) >> 00;
- if (ny[l]<1.e-13){
- printf("problem\n");
- }
+ // if (ny[l]<1.e-13){
+ // printf("problem\n");
+ // }
if (c>fgLayers[l].GetNumberOfClusters()) continue;
//if (l>3) continue;
AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(index);
AliITStrackMI * track10=(AliITStrackMI*) arr1->UncheckedAt(0);
AliITStrackMI * track20=(AliITStrackMI*) arr2->UncheckedAt(0);
if (track10->Pt()>0.5+track20->Pt()) return track10;
-
+ AliITStrackMI* win = track10;
+ //
for (Int_t itrack=0;itrack<entries1;itrack++){
AliITStrackMI * track=(AliITStrackMI*) arr1->UncheckedAt(itrack);
UnRegisterClusterTracks(track,trackID1);
track1->SetChi2MIP(8,index1);
fBestTrackIndex[trackID1] =index1;
UpdateESDtrack(track1, AliESDtrack::kITSin);
+ win = track1; // RS
}
else if (track10->GetChi2MIP(0)<th1){
track10->SetChi2MIP(5,maxconflicts);
track10->SetChi2MIP(6,maxchi2);
// track10->UpdateESDtrack(AliESDtrack::kITSin);
UpdateESDtrack(track10,AliESDtrack::kITSin);
+ win = track10; // RS
}
for (Int_t itrack=0;itrack<entries1;itrack++){
// &&track20->fChi2MIP[2]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)&&track20->fChi2MIP[3]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)){
RegisterClusterTracks(track20,trackID2);
}
- return track10;
+ return win;
}
//------------------------------------------------------------------------
Int_t entries = array->GetEntriesFast();
//
//- find preliminary besttrack as a reference
- Float_t minchi2=10000;
+ Float_t minchi2=1e6;
Int_t maxn=0;
AliITStrackMI * besttrack=0;
+ //
for (Int_t itrack=0;itrack<array->GetEntriesFast();itrack++){
AliITStrackMI * track = (AliITStrackMI*)array->At(itrack);
if (!track) continue;
if (chi2<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)){
if (track->GetNumberOfClusters()<maxn) continue;
maxn = track->GetNumberOfClusters();
+ // if (fSelectBestMIP03 && track->GetChi2MIP(3)>0) chi2 *= track->GetChi2MIP(3); // RS
if (chi2<minchi2){
minchi2=chi2;
besttrack=track;
//
Float_t * chi2 = new Float_t[entries];
Int_t * index = new Int_t[entries];
- for (Int_t i=0;i<entries;i++) chi2[i] =10000;
+ for (Int_t i=0;i<entries;i++) chi2[i] =1e6;
for (Int_t itrack=0;itrack<entries;itrack++){
AliITStrackMI * track = (AliITStrackMI*)array->At(itrack);
if (track){
- AliDebug(2,Form("track %d ncls %d\n",itrack,track->GetNumberOfClusters()));
- track->SetChi2MIP(0,GetNormalizedChi2(track, mode));
- if (track->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0))
- chi2[itrack] = track->GetChi2MIP(0);
+ AliDebug(2,Form("track %d ncls %d\n",itrack,track->GetNumberOfClusters()));
+ double chi2t = GetNormalizedChi2(track, mode);
+ track->SetChi2MIP(0,chi2t);
+ if (chi2t<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)) {
+ if (fSelectBestMIP03 && track->GetChi2MIP(3)>0) chi2t *= track->GetChi2MIP(3); // RS
+ chi2[itrack] = chi2t;
+ }
else{
if (track->GetConstrain() || track->GetNumberOfClusters()>5){ //keep best short tracks - without vertex constrain
delete array->RemoveAt(itrack);
}
//
// calculate one more time with updated normalized errors
- for (Int_t i=0;i<entries;i++) chi2[i] =10000;
+ for (Int_t i=0;i<entries;i++) chi2[i] =1e6;
for (Int_t itrack=0;itrack<entries;itrack++){
AliITStrackMI * track = (AliITStrackMI*)array->At(itrack);
if (track){
- track->SetChi2MIP(0,GetNormalizedChi2(track,mode));
+ double chi2t = GetNormalizedChi2(track, mode);
+ track->SetChi2MIP(0,chi2t);
AliDebug(2,Form("track %d ncls %d\n",itrack,track->GetNumberOfClusters()));
- if (track->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0))
- chi2[itrack] = track->GetChi2MIP(0)-0*(track->GetNumberOfClusters()+track->GetNDeadZone());
- else
- {
- if (track->GetConstrain() || track->GetNumberOfClusters()>5){ //keep best short tracks - without vertex constrain
- delete array->RemoveAt(itrack);
- }
+ if (track->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)) {
+ if (fSelectBestMIP03 && track->GetChi2MIP(3)>0) chi2t *= track->GetChi2MIP(3); // RS
+ chi2[itrack] = chi2t; //-0*(track->GetNumberOfClusters()+track->GetNDeadZone());
+ }
+ else {
+ if (track->GetConstrain() || track->GetNumberOfClusters()>5){ //keep best short tracks - without vertex constrain
+ delete array->RemoveAt(itrack);
}
+ }
}
}
entries = array->GetEntriesFast();
//-------------------------------------------------------------
// try to find best hypothesy
// currently - minimal chi2 of track+backpropagated track+matching to the tpc track
+ // RS: optionally changing this to product of Chi2MIP(0)*Chi2MIP(3) == (chi2*chi2_interpolated)
//-------------------------------------------------------------
if (fTrackHypothesys.GetEntriesFast()<=esdindex) return 0;
TObjArray * array = (TObjArray*) fTrackHypothesys.At(esdindex);
if (!array) return 0;
Int_t entries = array->GetEntriesFast();
if (!entries) return 0;
- Float_t minchi2 = 100000;
+ Float_t minchi2 = 1e6;
AliITStrackMI * besttrack=0;
//
AliITStrackMI * backtrack = new AliITStrackMI(*original);
backtrack = new(backtrack) AliITStrackMI(*track);
if (track->GetConstrain()) {
if (!CorrectForPipeMaterial(backtrack,"inward")) continue;
- if (!backtrack->Improve(0,xyzVtx,ersVtx)) continue;
+ if (AliITSReconstructor::GetRecoParam()->GetImproveWithVertex()) {
+ if (fUseImproveKalman) {if (!backtrack->ImproveKalman(xyzVtx,ersVtx,0,0,0)) continue;}
+ else {if (!backtrack->Improve(0,xyzVtx,ersVtx)) continue;}
+ }
backtrack->ResetCovariance(10.);
}else{
backtrack->ResetCovariance(10.);
forwardtrack = new(forwardtrack) AliITStrackMI(*original);
forwardtrack->ResetClusters();
x = track->GetX();
- RefitAt(x,forwardtrack,track);
+ if (!RefitAt(x,forwardtrack,track) && fSelectBestMIP03) continue; // w/o fwd track MIP03 is meaningless
track->SetChi2MIP(2,NormalizedChi2(forwardtrack,0));
if (track->GetChi2MIP(2)>AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)*6.0) continue;
if (!(track->GetConstrain())&&track->GetChi2MIP(2)>AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)) continue;
track->SetChi2MIP(3,1000);
continue;
}
- Double_t chi2 = track->GetChi2MIP(0)+track->GetNUsed();
+ Double_t chi2 = track->GetChi2MIP(0); // +track->GetNUsed(); //RS
+ if (fSelectBestMIP03) chi2 *= track->GetChi2MIP(3);
+ else chi2 += +track->GetNUsed();
//
for (Int_t ichi=0;ichi<5;ichi++){
forwardtrack->SetChi2MIP(ichi, track->GetChi2MIP(ichi));
}
delete backtrack;
delete forwardtrack;
+
+ if (!besttrack) return 0;
+
Int_t accepted=0;
for (Int_t i=0;i<entries;i++){
AliITStrackMI * track = (AliITStrackMI*)array->At(i);
if (!track) continue;
if (accepted>checkmax || track->GetChi2MIP(3)>AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)*6. ||
- (track->GetNumberOfClusters()<besttrack->GetNumberOfClusters()-1.)||
- track->GetChi2MIP(0)>besttrack->GetChi2MIP(0)+2.*besttrack->GetNUsed()+3.){
+ (track->GetNumberOfClusters()<besttrack->GetNumberOfClusters()-1.)
+ // RS: don't apply this cut when fSelectBestMIP03 is on
+ || (!fSelectBestMIP03 && (track->GetChi2MIP(0)>besttrack->GetChi2MIP(0)+2.*besttrack->GetNUsed()+3.))
+ ){
if (track->GetConstrain() || track->GetNumberOfClusters()>5){ //keep best short tracks - without vertex constrain
delete array->RemoveAt(i);
continue;
longtrack =track;
}
//if (longtrack) besttrack=longtrack;
+ //
+ // RS do shared cluster analysis here only if the new sharing analysis is not requested
+ if (fFlagFakes) return besttrack;
Int_t list[6];
AliITSRecPoint * clist[6];
//
AliITStrackMI* longtrack=0;
Float_t minn=0;
- Float_t maxchi2=1000;
+ Float_t maxchi2=1e6;
for (Int_t j=0;j<array->GetEntriesFast();j++){
AliITStrackMI* trackHyp = (AliITStrackMI*)array->At(j);
if (!trackHyp) continue;
}
if (trackHyp->GetNumberOfClusters()+trackHyp->GetNDeadZone()<minn) continue;
Float_t chi2 = trackHyp->GetChi2MIP(0);
- if (fAfterV0){
+ if (fSelectBestMIP03) chi2 *= trackHyp->GetChi2MIP(3);
+ if (trackHyp->GetNumberOfClusters()+trackHyp->GetNDeadZone()>minn) maxchi2 = chi2; //trackHyp->GetChi2MIP(0);
+ //
+ if (fAfterV0){ // ??? RS
if (!trackHyp->GetGoldV0()&&trackHyp->GetConstrain()==kFALSE) chi2+=5;
}
- if (trackHyp->GetNumberOfClusters()+trackHyp->GetNDeadZone()>minn) maxchi2 = trackHyp->GetChi2MIP(0);
- //
if (chi2 > maxchi2) continue;
- minn= trackHyp->GetNumberOfClusters()+trackHyp->GetNDeadZone();
+ minn = trackHyp->GetNumberOfClusters()+trackHyp->GetNDeadZone();
+ if (fSelectBestMIP03) minn++; // allow next to longest to win
maxchi2 = chi2;
longtrack=trackHyp;
}
else besttrack= longtrack;
//
if (besttrack) {
- Int_t list[6];
- AliITSRecPoint * clist[6];
- Float_t shared = GetNumberOfSharedClusters(longtrack,i,list,clist);
- //
- track->SetNUsed(shared);
track->SetNSkipped(besttrack->GetNSkipped());
track->SetChi2MIP(0,besttrack->GetChi2MIP(0));
- if (shared>0) {
- if(!AliITSReconstructor::GetRecoParam()->GetAllowSharedClusters()) continue;
- Int_t nshared;
- Int_t overlist[6];
+ //
+ if (!fFlagFakes) { // will flag them in separate analysis
+ Int_t list[6];
+ AliITSRecPoint * clist[6];
+ Float_t shared = GetNumberOfSharedClusters(longtrack,i,list,clist);
//
- Int_t sharedtrack = GetOverlapTrack(longtrack, i, nshared, list, overlist);
- //if (sharedtrack==-1) sharedtrack=0;
- if (sharedtrack>=0) {
- besttrack = GetBest2Tracks(i,sharedtrack,10,5.5);
- }
- }
- if (besttrack&&fAfterV0) {
+ track->SetNUsed(shared);
+ if (shared>0) {
+ if(!AliITSReconstructor::GetRecoParam()->GetAllowSharedClusters()) continue;
+ Int_t nshared;
+ Int_t overlist[6];
+ //
+ Int_t sharedtrack = GetOverlapTrack(longtrack, i, nshared, list, overlist);
+ //if (sharedtrack==-1) sharedtrack=0;
+ if (sharedtrack>=0) {
+ besttrack = GetBest2Tracks(i,sharedtrack,10,5.5);
+ if (besttrack) track->SetWinner(besttrack);
+ }
+ }
+ }
+ //
+ if (fAfterV0) {
UpdateESDtrack(besttrack,AliESDtrack::kITSin);
+ track->SetWinner(besttrack);
}
- if (besttrack&&fConstraint[fPass])
- UpdateESDtrack(besttrack,AliESDtrack::kITSin);
- if (besttrack->GetChi2MIP(0)+besttrack->GetNUsed()>1.5 && fConstraint[fPass]) {
- if ( TMath::Abs(besttrack->GetD(0))>0.1 ||
- TMath::Abs(besttrack->GetD(1))>0.1 ) track->SetReconstructed(kFALSE);
- }
-
- }
+ if (fConstraint[fPass]) {
+ UpdateESDtrack(besttrack,AliESDtrack::kITSin);
+ track->SetWinner(besttrack);
+ double chicut = besttrack->GetChi2MIP(0);
+ if (fSelectBestMIP03) chicut *= besttrack->GetChi2MIP(3);
+ else chicut += besttrack->GetNUsed();
+ if (chicut>1.5) {
+ if ( TMath::Abs(besttrack->GetD(0))>0.1 ||
+ TMath::Abs(besttrack->GetD(1))>0.1 ) track->SetReconstructed(kFALSE);
+ }
+ }
+ }
}
}
+
+//------------------------------------------------------------------------
+void AliITStrackerMI::FlagFakes(TObjArray &itsTracks)
+{
+ //
+ // RS: flag those tracks which are suxpected to have fake clusters
+ //
+ const double kThreshPt = 0.5;
+ AliRefArray *refArr[6];
+ //
+ for (int i=0;i<6;i++) {
+ int ncl = fgLayers[i].GetNumberOfClusters();
+ refArr[i] = new AliRefArray(ncl,TMath::Min(ncl,1000));
+ }
+ Int_t nentries = itsTracks.GetEntriesFast();
+ //
+ // fill cluster->track associations
+ for (Int_t itr=0;itr<nentries;itr++){
+ AliITStrackMI* track = (AliITStrackMI*)itsTracks.UncheckedAt(itr);
+ if (!track) continue;
+ AliITStrackMI* trackITS = track->GetWinner();
+ if (!trackITS) continue;
+ for (int il=trackITS->GetNumberOfClusters();il--;) {
+ int idx = trackITS->GetClusterIndex(il);
+ Int_t l=(idx & 0xf0000000) >> 28, c=(idx & 0x0fffffff) >> 00;
+ // if (c>fgLayers[l].GetNumberOfClusters()) continue;
+ refArr[l]->AddReference(c, itr);
+ }
+ }
+ //
+ const UInt_t kMaxRef = 100;
+ UInt_t crefs[kMaxRef];
+ Int_t ncrefs=0;
+ // process tracks with shared clusters
+ for (int itr=0;itr<nentries;itr++){
+ AliITStrackMI* track0 = (AliITStrackMI*)itsTracks.UncheckedAt(itr);
+ AliITStrackMI* trackH0 = track0->GetWinner();
+ if (!trackH0) continue;
+ AliESDtrack* esd0 = track0->GetESDtrack();
+ //
+ for (int il=0;il<trackH0->GetNumberOfClusters();il++) {
+ int idx = trackH0->GetClusterIndex(il);
+ Int_t l=(idx & 0xf0000000) >> 28, c=(idx & 0x0fffffff) >> 00;
+ ncrefs = refArr[l]->GetReferences(c,crefs,kMaxRef);
+ if (ncrefs<2) continue; // there will be always self-reference, for sharing needs at least 2
+ esd0->SetITSSharedFlag(l);
+ for (int ir=ncrefs;ir--;) {
+ if (int(crefs[ir]) <= itr) continue; // ==:selfreference, <: the same pair will be checked with >
+ AliITStrackMI* track1 = (AliITStrackMI*)itsTracks.UncheckedAt(crefs[ir]);
+ AliITStrackMI* trackH1 = track1->GetWinner();
+ AliESDtrack* esd1 = track1->GetESDtrack();
+ esd1->SetITSSharedFlag(l);
+ //
+ double pt0 = trackH0->Pt(), pt1 = trackH1->Pt(), res = 0.;
+ if (pt0>kThreshPt && pt0-pt1>0.2+0.2*(pt0-kThreshPt) ) res = -100;
+ else if (pt1>kThreshPt && pt1-pt0>0.2+0.2*(pt1-kThreshPt) ) res = 100;
+
+ // select the one with smallest chi2's product
+ res += trackH0->GetChi2MIP(0)*trackH0->GetChi2MIP(3);
+ res -= trackH1->GetChi2MIP(0)*trackH1->GetChi2MIP(3);
+ //
+ if (res<0) esd1->SetITSFakeFlag(); // esd0 is winner
+ else esd0->SetITSFakeFlag(); // esd1 is winner
+ }
+ //
+ }
+ //
+ }
+ //
+ for (int i=6;i--;) delete refArr[i];
+}
+
//------------------------------------------------------------------------
void AliITStrackerMI::CookLabel(AliITStrackMI *track,Float_t wrong) const {
//--------------------------------------------------------------------
//
// Compute predicted chi2
//
+ // Take into account the mis-alignment (bring track to cluster plane)
+ Double_t xTrOrig=track->GetX();
+ if (!track->Propagate(xTrOrig+cluster->GetX())) return 1000.;
Float_t erry,errz,covyz;
Float_t theta = track->GetTgl();
Float_t phi = track->GetSnp();
- phi = TMath::Abs(phi)*TMath::Sqrt(1./((1.-phi)*(1.+phi)));
+ phi *= TMath::Sqrt(1./((1.-phi)*(1.+phi)));
AliITSClusterParam::GetError(layer,cluster,theta,phi,track->GetExpQ(),erry,errz,covyz);
AliDebug(2,Form(" chi2: tr-cl %f %f tr X %f cl X %f",track->GetY()-cluster->GetY(),track->GetZ()-cluster->GetZ(),track->GetX(),cluster->GetX()));
- // Take into account the mis-alignment (bring track to cluster plane)
- Double_t xTrOrig=track->GetX();
- if (!track->Propagate(xTrOrig+cluster->GetX())) return 1000.;
AliDebug(2,Form(" chi2: tr-cl %f %f tr X %f cl X %f",track->GetY()-cluster->GetY(),track->GetZ()-cluster->GetZ(),track->GetX(),cluster->GetX()));
Double_t chi2 = track->GetPredictedChi2MI(cluster->GetY(),cluster->GetZ(),erry,errz,covyz);
// Bring the track back to detector plane in ideal geometry
//to be paramterized using external parameters in future
//
//
- sigmarfi = 0.0040+1.4 *TMath::Abs(track->GetC())+332.*track->GetC()*track->GetC();
- sigmaz = 0.0110+4.37*TMath::Abs(track->GetC());
+ Double_t curv=track->GetC();
+ sigmarfi = 0.0040+1.4 *TMath::Abs(curv)+332.*curv*curv;
+ sigmaz = 0.0110+4.37*TMath::Abs(curv);
}
//------------------------------------------------------------------------
void AliITStrackerMI::SignDeltas(const TObjArray *clusterArray, Float_t vz)
AliITStrackMI * oldtrack = (AliITStrackMI*)(track->GetESDtrack()->GetITStrack());
if (oldtrack) delete oldtrack;
track->GetESDtrack()->SetITStrack(new AliITStrackMI(*track));
- if (TMath::Abs(track->GetDnorm(1))<0.000000001){
- printf("Problem\n");
- }
+ // if (TMath::Abs(track->GetDnorm(1))<0.000000001){
+ // printf("Problem\n");
+ // }
}
//------------------------------------------------------------------------
Int_t AliITStrackerMI::GetNearestLayer(const Double_t *xr) const{
// check if the road overlaps with bad chips
Float_t xloc,zloc;
- LocalModuleCoord(ilayer,idet,track,xloc,zloc);
+ if(!(LocalModuleCoord(ilayer,idet,track,xloc,zloc)))return 0;
Float_t zlocmin = zloc-dz;
Float_t zlocmax = zloc+dz;
Float_t xlocmin = xloc-dy;
return kTRUE;
}
//------------------------------------------------------------------------
+//------------------------------------------------------------------------
Bool_t AliITStrackerMI::IsOKForPlaneEff(const AliITStrackMI* track, const Int_t *clusters, Int_t ilayer) const {
//
// Method to be optimized further:
AliITStrackMI tmp(*track);
// require a minimal number of cluster in other layers and eventually clusters in closest layers
- Int_t ncl=0;
- for(Int_t lay=AliITSgeomTGeo::kNLayers-1;lay>ilayer;lay--) {
+ Int_t ncl_out=0; Int_t ncl_in=0;
+ for(Int_t lay=AliITSgeomTGeo::kNLayers-1;lay>ilayer;lay--) { // count n. of cluster in outermost layers
+ AliDebug(2,Form("trak=%d lay=%d ; index=%d ESD label= %d",tmp.GetLabel(),lay,
+ tmp.GetClIndex(lay),((AliESDtrack*)tmp.GetESDtrack())->GetLabel())) ;
+ // if (tmp.GetClIndex(lay)>=0) ncl_out++;
+if(index[lay]>=0)ncl_out++;
+ }
+ for(Int_t lay=ilayer-1; lay>=0;lay--) { // count n. of cluster in innermost layers
AliDebug(2,Form("trak=%d lay=%d ; index=%d ESD label= %d",tmp.GetLabel(),lay,
tmp.GetClIndex(lay),((AliESDtrack*)tmp.GetESDtrack())->GetLabel())) ;
- if (tmp.GetClIndex(lay)>=0) ncl++;
+ if (index[lay]>=0) ncl_in++;
}
+ Int_t ncl=ncl_out+ncl_in;
Bool_t nextout = kFALSE;
if(ilayer==AliITSgeomTGeo::kNLayers-1) nextout=kTRUE; // you are already on the outermost layer
else nextout = ((tmp.GetClIndex(ilayer+1)>=0)? kTRUE : kFALSE );
Bool_t nextin = kFALSE;
if(ilayer==0) nextin=kTRUE; // you are already on the innermost layer
else nextin = ((index[ilayer-1]>=0)? kTRUE : kFALSE );
- if(ncl<AliITSgeomTGeo::kNLayers-(ilayer+1)-AliITSReconstructor::GetRecoParam()->GetMaxMissingClustersPlaneEff())
+ // maximum number of missing clusters allowed in outermost layers
+ if(ncl_out<AliITSgeomTGeo::kNLayers-(ilayer+1)-AliITSReconstructor::GetRecoParam()->GetMaxMissingClustersOutPlaneEff())
+ return kFALSE;
+ // maximum number of missing clusters allowed (both in innermost and in outermost layers)
+ if(ncl<AliITSgeomTGeo::kNLayers-1-AliITSReconstructor::GetRecoParam()->GetMaxMissingClustersPlaneEff())
return kFALSE;
if(AliITSReconstructor::GetRecoParam()->GetRequireClusterInOuterLayerPlaneEff() && !nextout) return kFALSE;
if(AliITSReconstructor::GetRecoParam()->GetRequireClusterInInnerLayerPlaneEff() && !nextin) return kFALSE;
//***************
// DEFINITION OF SEARCH ROAD FOR accepting a track
//
- //For the time being they are hard-wired, later on from AliITSRecoParam
- // Double_t nsigx=AliITSRecoParam::GetNSigXFarFromBoundary();
- // Double_t nsigz=AliITSRecoParam::GetNSigZFarFromBoundary();
- Double_t nsigz=4;
- Double_t nsigx=4;
+ Double_t nsigx=AliITSReconstructor::GetRecoParam()->GetNSigXFromBoundaryPlaneEff();
+ Double_t nsigz=AliITSReconstructor::GetRecoParam()->GetNSigZFromBoundaryPlaneEff();
Double_t dx=nsigx*TMath::Sqrt(tmp.GetSigmaY2()); // those are precisions in the tracking reference system
Double_t dz=nsigz*TMath::Sqrt(tmp.GetSigmaZ2()); // Use it also for the module reference system, as it is
- // done for RecPoints
+ // done for RecPoints
// exclude tracks at boundary between detectors
//Double_t boundaryWidth=AliITSRecoParam::GetBoundaryWidthPlaneEff();
AliDebug(2,Form("Tracking: track impact x=%f, y=%f, z=%f",tmp.GetX(), tmp.GetY(), tmp.GetZ()));
AliDebug(2,Form("Local: track impact x=%f, z=%f",locx,locz));
AliDebug(2,Form("Search Road. Tracking: dy=%f , dz=%f",dx,dz));
-
if ( (locx-dx < blockXmn+boundaryWidth) ||
(locx+dx > blockXmx-boundaryWidth) ||
(locz-dz < blockZmn+boundaryWidth) ||
Float_t tr[4]={99999.,99999.,9999.,9999.}; // initialize to high values
Float_t clu[4]={-99999.,-99999.,9999.,9999.}; // (in some cases GetCov fails)
Int_t cltype[2]={-999,-999};
+ // and the module
+
+Float_t AngleModTrack[3]={99999.,99999.,99999.}; // angles (phi, z and "absolute angle") between the track and the mormal to the module (see below)
tr[0]=locx;
tr[1]=locz;
clu[3]=TMath::Sqrt(c.GetSigmaZ2());
//}
}
- fPlaneEff->FillHistos(key,found,tr,clu,cltype);
+ // Compute the angles between the track and the module
+ // compute the angle "in phi direction", i.e. the angle in the transverse plane
+ // between the normal to the module and the projection (in the transverse plane) of the
+ // track trajectory
+ // tgphi and tglambda of the track in tracking frame with alpha=det.GetPhi
+ Float_t tgl = tmp.GetTgl();
+ Float_t phitr = tmp.GetSnp();
+ phitr = TMath::ASin(phitr);
+ Int_t volId = AliGeomManager::LayerToVolUIDSafe(ilayer+1 ,idet );
+
+ Double_t tra[3]; AliGeomManager::GetOrigTranslation(volId,tra);
+ Double_t rot[9]; AliGeomManager::GetOrigRotation(volId,rot);
+ Double_t alpha =0.;
+ alpha = tmp.GetAlpha();
+ Double_t phiglob = alpha+phitr;
+ Double_t p[3];
+ p[0] = TMath::Cos(phiglob);
+ p[1] = TMath::Sin(phiglob);
+ p[2] = tgl;
+ TVector3 pvec(p[0],p[1],p[2]);
+ TVector3 normvec(rot[1],rot[4],rot[7]);
+ Double_t angle = pvec.Angle(normvec);
+
+ if(angle>0.5*TMath::Pi()) angle = (TMath::Pi()-angle);
+ angle *= 180./TMath::Pi();
+
+ //Trasverse Plane
+ TVector3 pt(p[0],p[1],0);
+ TVector3 normt(rot[1],rot[4],0);
+ Double_t anglet = pt.Angle(normt);
+
+ Double_t phiPt = TMath::ATan2(p[1],p[0]);
+ if(phiPt<0)phiPt+=2.*TMath::Pi();
+ Double_t phiNorm = TMath::ATan2(rot[4],rot[1]);
+ if(phiNorm<0) phiNorm+=2.*TMath::Pi();
+ if(anglet>0.5*TMath::Pi()) anglet = (TMath::Pi()-anglet);
+ if(phiNorm>phiPt) anglet*=-1.;// pt-->normt clockwise: anglet>0
+ if((phiNorm-phiPt)>TMath::Pi()) anglet*=-1.;
+ anglet *= 180./TMath::Pi();
+
+ AngleModTrack[2]=(Float_t) angle;
+ AngleModTrack[0]=(Float_t) anglet;
+ // now the "angle in z" (much easier, i.e. the angle between the z axis and the track momentum + 90)
+ AngleModTrack[1]=TMath::ACos(tgl/TMath::Sqrt(tgl*tgl+1.));
+ AngleModTrack[1]-=TMath::Pi()/2.; // range of angle is -pi/2 , pi/2
+ AngleModTrack[1]*=180./TMath::Pi(); // in degree
+
+ fPlaneEff->FillHistos(key,found,tr,clu,cltype,AngleModTrack);
}
return;
}
+
+Int_t AliITStrackerMI::FindClusterOfTrack(int label, int lr, int* store) const //RS
+{
+ // find the MC cluster for the label
+ return fgLayers[lr].FindClusterForLabel(label,store);
+}
+
+/*
+Int_t AliITStrackerMI::GetPattern(const AliITStrackMI* track, char* patt)
+{
+ // creates pattarn of hits marking fake/corrects by f/c. Used for debugging (RS)
+ strncpy(patt,"......",6);
+ int tpcLabel = 0;
+ if (track->GetESDtrack()) tpcLabel = track->GetESDtrack()->GetTPCLabel();
+ //
+ int nwrong = 0;
+ for (Int_t i=0;i<track->GetNumberOfClusters();i++){
+ Int_t cindex = track->GetClusterIndex(i);
+ Int_t l=(cindex & 0xf0000000) >> 28;
+ AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(cindex);
+ Int_t isWrong=1;
+ for (Int_t ind=0;ind<3;ind++) if (cl->GetLabel(ind)==TMath::Abs(tpcLabel)) isWrong=0;
+ patt[l] = isWrong ? 'f':'c';
+ nwrong+=isWrong;
+ }
+ return nwrong;
+}
+*/
+//------------------------------------------------------------------------
+Int_t AliITStrackerMI::AliITSlayer::FindClusterForLabel(Int_t label, Int_t *store) { //RS
+ //--------------------------------------------------------------------
+
+ int nfound = 0;
+ for (int ic=0;ic<fN;ic++) {
+ const AliITSRecPoint *cl = GetCluster(ic);
+ for (int i=0;i<3;i++) if (cl->GetLabel(i)==label) {
+ if (nfound<50) {
+ if (store) store[nfound] = ic;
+ nfound++;
+ }
+ break;
+ }
+ }
+ return nfound;
+}