// It reads AliITSRecPoint clusters and creates AliITStrackMI tracks
// and fills with them the ESD
// Origin: Marian Ivanov, CERN, Marian.Ivanov@cern.ch
+// Current support and development:
+// Andrea Dainese, andrea.dainese@lnl.infn.it
// dE/dx analysis by: Boris Batyunya, JINR, Boris.Batiounia@cern.ch
// Params moved to AliITSRecoParam by: Andrea Dainese, INFN
// Material budget from TGeo by: Ludovic Gaudichet & Andrea Dainese, INFN
#include "AliTrackPointArray.h"
#include "AliAlignObj.h"
#include "AliITSClusterParam.h"
-#include "AliITSPlaneEff.h"
#include "AliCDBManager.h"
#include "AliCDBEntry.h"
+#include "AliITSsegmentation.h"
+#include "AliITSCalibration.h"
#include "AliITSCalibrationSPD.h"
#include "AliITSCalibrationSDD.h"
#include "AliITSCalibrationSSD.h"
+#include "AliITSPlaneEff.h"
+#include "AliITSPlaneEffSPD.h"
+#include "AliITSPlaneEffSDD.h"
+#include "AliITSPlaneEffSSD.h"
#include "AliITStrackerMI.h"
ClassImp(AliITStrackerMI)
fxOverX0LayerTrks(0),
fxTimesRhoLayerTrks(0),
fDebugStreamer(0),
+fITSChannelStatus(0),
+fDetTypeRec(0),
fPlaneEff(0) {
//Default constructor
Int_t i;
fxOverX0LayerTrks(0),
fxTimesRhoLayerTrks(0),
fDebugStreamer(0),
+fITSChannelStatus(0),
+fDetTypeRec(0),
fPlaneEff(0) {
//--------------------------------------------------------------------
//This is the AliITStrackerMI constructor
TGeoHMatrix m; AliITSgeomTGeo::GetOrigMatrix(i,j,k,m);
const TGeoHMatrix *tm=AliITSgeomTGeo::GetTracking2LocalMatrix(i,j,k);
m.Multiply(tm);
- Double_t txyz[3]={0.}, xyz[3]={0.};
+ Double_t txyz[3]={0.};
+ xyz[0]=0.;xyz[1]=0.;xyz[2]=0.;
m.LocalToMaster(txyz,xyz);
- Double_t r=TMath::Sqrt(xyz[0]*xyz[0] + xyz[1]*xyz[1]);
+ r=TMath::Sqrt(xyz[0]*xyz[0] + xyz[1]*xyz[1]);
Double_t phi=TMath::ATan2(xyz[1],xyz[0]);
if (phi<0) phi+=TMath::TwoPi();
AliITSdetector &det=fgLayers[i-1].GetDetector((j-1)*ndet + k-1);
new(&det) AliITSdetector(r,phi);
- }
- }
+ // compute the real radius (with misalignment)
+ TGeoHMatrix mmisal(*(AliITSgeomTGeo::GetMatrix(i,j,k)));
+ mmisal.Multiply(tm);
+ xyz[0]=0.;xyz[1]=0.;xyz[2]=0.;
+ mmisal.LocalToMaster(txyz,xyz);
+ Double_t rmisal=TMath::Sqrt(xyz[0]*xyz[0] + xyz[1]*xyz[1]);
+ det.SetRmisal(rmisal);
+
+ } // end loop on detectors
+ } // end loop on ladders
+ } // end loop on layers
- }
fI=AliITSgeomTGeo::GetNLayers();
fDebugStreamer = new TTreeSRedirector("ITSdebug.root");
+ // only for plane efficiency evaluation
+ if (AliITSReconstructor::GetRecoParam()->GetComputePlaneEff()) {
+ Int_t iplane=AliITSReconstructor::GetRecoParam()->GetIPlanePlaneEff();
+ if(AliITSReconstructor::GetRecoParam()->GetLayersToSkip(iplane))
+ AliWarning(Form("Evaluation of Plane Eff for layer %d will be attempted without removing it from tracker",iplane));
+ if (iplane<2) fPlaneEff = new AliITSPlaneEffSPD();
+ else if (iplane<4) fPlaneEff = new AliITSPlaneEffSDD();
+ else fPlaneEff = new AliITSPlaneEffSSD();
+ if(AliITSReconstructor::GetRecoParam()->GetReadPlaneEffFromOCDB())
+ if(!fPlaneEff->ReadFromCDB()) {AliWarning("AliITStrackerMI reading of AliITSPlaneEff from OCDB failed") ;}
+ if(AliITSReconstructor::GetRecoParam()->GetHistoPlaneEff()) fPlaneEff->SetCreateHistos(kTRUE);
+ }
}
//------------------------------------------------------------------------
AliITStrackerMI::AliITStrackerMI(const AliITStrackerMI &tracker):AliTracker(tracker),
fxOverX0LayerTrks(0),
fxTimesRhoLayerTrks(0),
fDebugStreamer(tracker.fDebugStreamer),
+fITSChannelStatus(tracker.fITSChannelStatus),
+fDetTypeRec(tracker.fDetTypeRec),
fPlaneEff(tracker.fPlaneEff) {
//Copy constructor
Int_t i;
//fDebugStreamer->Close();
delete fDebugStreamer;
}
+ if(fITSChannelStatus) delete fITSChannelStatus;
+ if(fPlaneEff) delete fPlaneEff;
}
//------------------------------------------------------------------------
void AliITStrackerMI::SetLayersNotToSkip(Int_t *l) {
for (Int_t i=0; i<AliITSgeomTGeo::GetNLayers(); i++) fLayersNotToSkip[i]=l[i];
}
//------------------------------------------------------------------------
+void AliITStrackerMI::ReadBadFromDetTypeRec() {
+ //--------------------------------------------------------------------
+ //This function read ITS bad detectors, chips, channels from AliITSDetTypeRec
+ //i.e. from OCDB
+ //--------------------------------------------------------------------
+
+ if(!AliITSReconstructor::GetRecoParam()->GetUseBadZonesFromOCDB()) return;
+
+ Info("ReadBadFromDetTypeRec","Reading info about bad ITS detectors and channels\n");
+
+ if(!fDetTypeRec) Error("ReadBadFromDetTypeRec","AliITSDetTypeRec nof found!\n");
+
+ // ITS channels map
+ if(fITSChannelStatus) delete fITSChannelStatus;
+ fITSChannelStatus = new AliITSChannelStatus(AliCDBManager::Instance());
+
+ // ITS detectors and chips
+ Int_t i=0,j=0,k=0,ndet=0;
+ for (i=1; i<AliITSgeomTGeo::GetNLayers()+1; i++) {
+ ndet=AliITSgeomTGeo::GetNDetectors(i);
+ for (j=1; j<AliITSgeomTGeo::GetNLadders(i)+1; j++) {
+ for (k=1; k<ndet+1; k++) {
+ AliITSdetector &det=fgLayers[i-1].GetDetector((j-1)*ndet + k-1);
+ det.ReadBadDetectorAndChips(i-1,(j-1)*ndet + k-1,fDetTypeRec);
+ } // end loop on detectors
+ } // end loop on ladders
+ } // end loop on layers
+
+ return;
+}
+//------------------------------------------------------------------------
Int_t AliITStrackerMI::LoadClusters(TTree *cTree) {
//--------------------------------------------------------------------
//This function loads ITS clusters
return 1;
}
- TClonesArray dummy("AliITSRecPoint",10000), *clusters=&dummy;
+ static TClonesArray dummy("AliITSRecPoint",10000), *clusters=&dummy;
branch->SetAddress(&clusters);
- Int_t j=0;
+ Int_t i=0,j=0,ndet=0;
Int_t detector=0;
- for (
Int_t i=0; i<AliITSgeomTGeo::GetNLayers(); i++) {
- Int_t ndet=fgLayers[i].GetNdetectors();
+ for (i=0; i<AliITSgeomTGeo::GetNLayers(); i++) {
+ ndet=fgLayers[i].GetNdetectors();
Int_t jmax = j + fgLayers[i].GetNladders()*ndet;
for (; j<jmax; j++) {
if (!cTree->GetEvent(j)) continue;
fgLayers[i].SortClusters();
}
+ dummy.Clear();
+
return 0;
}
//------------------------------------------------------------------------
for (Int_t i=0; i<AliITSgeomTGeo::GetNLayers(); i++) fgLayers[i].ResetClusters();
}
//------------------------------------------------------------------------
+void AliITStrackerMI::FillClusterArray(TObjArray* array) const {
+ //--------------------------------------------------------------------
+ // Publishes all pointers to clusters known to the tracker into the
+ // passed object array.
+ // The ownership is not transfered - the caller is not expected to delete
+ // the clusters.
+ //--------------------------------------------------------------------
+
+ for(Int_t i=0; i<AliITSgeomTGeo::GetNLayers(); i++) {
+ for(Int_t icl=0; icl<fgLayers[i].GetNumberOfClusters(); icl++) {
+ AliCluster *cl = (AliCluster*)fgLayers[i].GetCluster(icl);
+ array->AddLast(cl);
+ }
+ }
+
+ return;
+}
+//------------------------------------------------------------------------
static Int_t CorrectForTPCtoITSDeadZoneMaterial(AliITStrackMI *t) {
//--------------------------------------------------------------------
// Correction for the material between the TPC and the ITS
// This functions reconstructs ITS tracks
// The clusters must be already loaded !
//--------------------------------------------------------------------
+
+
fTrackingPhase="Clusters2Tracks";
TObjArray itsTracks(15000);
for (fPass=0; fPass<2; fPass++) {
Int_t &constraint=fConstraint[fPass]; if (constraint<0) continue;
for (fCurrentEsdTrack=0; fCurrentEsdTrack<nentr; fCurrentEsdTrack++) {
- //cerr<<fPass<<" "<<fCurrentEsdTrack<<'\n';
AliITStrackMI *t=(AliITStrackMI*)itsTracks.UncheckedAt(fCurrentEsdTrack);
if (t==0) continue; //this track has been already tracked
+ //cout<<"========== "<<fPass<<" "<<fCurrentEsdTrack<<" =========\n";
if (t->GetReconstructed()&&(t->GetNUsed()<1.5)) continue; //this track was already "succesfully" reconstructed
Float_t dz[2]; t->GetDZ(GetX(),GetY(),GetZ(),dz); //I.B.
if (fConstraint[fPass]) {
ResetBestTrack();
FollowProlongationTree(t,fCurrentEsdTrack,fConstraint[fPass]);
+
SortTrackHypothesys(fCurrentEsdTrack,20,0); //MI change
//
if (fConstraint[fPass]&&(!besttrack->IsGoldPrimary())) continue; //to be tracked also without vertex constrain
t->SetReconstructed(kTRUE);
- ntrk++;
+ ntrk++;
}
GetBestHypothesysMIP(itsTracks);
} // end loop on the two tracking passes
- //GetBestHypothesysMIP(itsTracks);
if(event->GetNumberOfV0s()>0) UpdateTPCV0(event);
if(AliITSReconstructor::GetRecoParam()->GetFindV0s()) FindV02(event);
fAfterV0 = kTRUE;
- //GetBestHypothesysMIP(itsTracks);
//
itsTracks.Delete();
//
fTrackToFollow.ResetCovariance(10.);
//Refitting...
- if (RefitAt(AliITSRecoParam::GetrInsideSPD1(),&fTrackToFollow,t,kTRUE)) {
+ Bool_t pe=AliITSReconstructor::GetRecoParam()->GetComputePlaneEff();
+ if (RefitAt(AliITSRecoParam::GetrInsideSPD1(),&fTrackToFollow,t,kTRUE,pe)) {
fTrackToFollow.SetLabel(t->GetLabel());
// fTrackToFollow.CookdEdx();
CookdEdx(&fTrackToFollow);
cl->GetGlobalXYZ(xyz);
cl->GetGlobalCov(cov);
p.SetXYZ(xyz, cov);
-
+ p.SetCharge(cl->GetQ());
+ p.SetDriftTime(cl->GetDriftTime());
AliGeomManager::ELayerID iLayer = AliGeomManager::kInvalidLayer;
switch (l) {
case 0:
Float_t expQ = TMath::Max(0.8*t->GetTPCsignal(),30.);
Float_t errlocalx,errlocalz;
- AliITSClusterParam::GetError(l,cl,tgl,tgphi,expQ,errlocalx,errlocalz);
+ Bool_t addMisalErr=kFALSE;
+ AliITSClusterParam::GetError(l,cl,tgl,tgphi,expQ,errlocalx,errlocalz,addMisalErr);
Float_t xyz[3];
Float_t cov[6];
tmpcl.GetGlobalCov(cov);
p.SetXYZ(xyz, cov);
+ p.SetCharge(cl->GetQ());
+ p.SetDriftTime(cl->GetDriftTime());
AliGeomManager::ELayerID iLayer = AliGeomManager::kInvalidLayer;
switch (l) {
//
// follow prolongations
for (Int_t ilayer=5; ilayer>=0; ilayer--) {
+ //printf("FollowProlongationTree: layer %d\n",ilayer);
fI = ilayer;
//
AliITSlayer &layer=fgLayers[ilayer];
const AliITSdetector &det=layer.GetDetector(idet);
new(¤ttrack2) AliITStrackMI(currenttrack1);
if (!currenttrack1.Propagate(det.GetPhi(),det.GetR())) continue;
- LocalModuleCoord(ilayer,idet,¤ttrack1,xloc,zloc); // local module coords
currenttrack2.Propagate(det.GetPhi(),det.GetR());
currenttrack1.SetDetectorIndex(idet);
currenttrack2.SetDetectorIndex(idet);
+ LocalModuleCoord(ilayer,idet,¤ttrack1,xloc,zloc); // local module coords
//***************
- // DEFINITION OF SEARCH ROAD FOR CLUSTERS SELECTION
+ // DEFINITION OF SEARCH ROAD AND CLUSTERS SELECTION
//
- Double_t dz=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadZ()*
- TMath::Sqrt(currenttrack1.GetSigmaZ2() +
- AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
- AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
- AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer));
- Double_t dy=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadY()*
- TMath::Sqrt(currenttrack1.GetSigmaY2() +
- AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
- AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
- AliITSReconstructor::GetRecoParam()->GetSigmaY2(ilayer));
-
- // track at boundary between detectors, enlarge road
- Double_t boundaryWidth=AliITSRecoParam::GetBoundaryWidth();
- if ( (currenttrack1.GetY()-dy < det.GetYmin()+boundaryWidth) ||
- (currenttrack1.GetY()+dy > det.GetYmax()-boundaryWidth) ||
- (currenttrack1.GetZ()-dz < det.GetZmin()+boundaryWidth) ||
- (currenttrack1.GetZ()+dz > det.GetZmax()-boundaryWidth) ) {
- Float_t tgl = TMath::Abs(currenttrack1.GetTgl());
- if (tgl > 1.) tgl=1.;
- Double_t deltaXNeighbDets=AliITSRecoParam::GetDeltaXNeighbDets();
- dz = TMath::Sqrt(dz*dz+deltaXNeighbDets*deltaXNeighbDets*tgl*tgl);
- Float_t snp = TMath::Abs(currenttrack1.GetSnp());
- if (snp > AliITSReconstructor::GetRecoParam()->GetMaxSnp()) continue;
- dy = TMath::Sqrt(dy*dy+deltaXNeighbDets*deltaXNeighbDets*snp*snp);
- } // boundary
-
// road in global (rphi,z) [i.e. in tracking ref. system]
- Double_t zmin = currenttrack1.GetZ() - dz;
- Double_t zmax = currenttrack1.GetZ() + dz;
- Double_t ymin = currenttrack1.GetY() + r*det.GetPhi() - dy;
- Double_t ymax = currenttrack1.GetY() + r*det.GetPhi() + dy;
+ Double_t zmin,zmax,ymin,ymax;
+ if (!ComputeRoad(¤ttrack1,ilayer,idet,zmin,zmax,ymin,ymax)) continue;
// select clusters in road
layer.SelectClusters(zmin,zmax,ymin,ymax);
}
msz = 1./msz; // 1/RoadZ^2
msy = 1./msy; // 1/RoadY^2
+
//
//
// LOOP OVER ALL POSSIBLE TRACK PROLONGATIONS ON THIS LAYER
currenttrack = ¤ttrack1;
// check if the road contains a dead zone
- Int_t dead = CheckDeadZone(ilayer,idet,zmin,zmax);
+ Bool_t noClusters = kFALSE;
+ if (!layer.GetNextCluster(clidx,kTRUE)) noClusters=kTRUE;
+ //if (noClusters) printf("no clusters in road\n");
+ Double_t dz=0.5*(zmax-zmin);
+ Double_t dy=0.5*(ymax-ymin);
+ Int_t dead = CheckDeadZone(¤ttrack1,ilayer,idet,dz,dy,noClusters);
// create a prolongation without clusters (check also if there are no clusters in the road)
if (dead ||
- ((layer.GetNextCluster(clidx,kTRUE))==0 &&
+ (noClusters &&
AliITSReconstructor::GetRecoParam()->GetAllowProlongationWithEmptyRoad())) {
AliITStrackMI * updatetrack = new (&tracks[ilayer][ntracks[ilayer]]) AliITStrackMI(*currenttrack);
updatetrack->SetClIndex(ilayer,0);
modstatus = 5; // no cls in road
} else if (dead==1) {
modstatus = 7; // holes in z in SPD
- } else if (dead==2) {
+ } else if (dead==2 || dead==3) {
modstatus = 2; // dead from OCDB
}
updatetrack->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
if (ntracks[ilayer]>95) break; //space for skipped clusters
Bool_t changedet =kFALSE;
if (cl->GetQ()==0 && deadzoneSPD==kTRUE) continue;
- Int_t idet=cl->GetDetectorIndex();
+ Int_t idetc=cl->GetDetectorIndex();
- if (currenttrack->GetDetectorIndex()==idet) { // track already on the cluster's detector
+ if (currenttrack->GetDetectorIndex()==idetc) { // track already on the cluster's detector
+ // take into account misalignment (bring track to real detector plane)
+ Double_t xTrOrig = currenttrack->GetX();
+ currenttrack->PropagateTo(xTrOrig+cl->GetX(),0.,0.);
// a first cut on track-cluster distance
if ( (currenttrack->GetZ()-cl->GetZ())*(currenttrack->GetZ()-cl->GetZ())*msz +
(currenttrack->GetY()-cl->GetY())*(currenttrack->GetY()-cl->GetY())*msy > 1. )
- continue; // cluster not associated to track
+ { // cluster not associated to track
+ //printf("not ass\n");
+ continue;
+ }
+ // bring track back to ideal detector plane
+ currenttrack->PropagateTo(xTrOrig,0.,0.);
} else { // have to move track to cluster's detector
- const AliITSdetector &det=layer.GetDetector(idet);
+ const AliITSdetector &detc=layer.GetDetector(idetc);
// a first cut on track-cluster distance
- Double_t y,z;
- if (!currenttrack2.GetProlongationFast(det.GetPhi(),det.GetR(),y,z)) continue;
+ Double_t y;
+ if (!currenttrack2.GetProlongationFast(detc.GetPhi(),detc.GetR()+cl->GetX(),y,z)) continue;
if ( (z-cl->GetZ())*(z-cl->GetZ())*msz +
(y-cl->GetY())*(y-cl->GetY())*msy > 1. )
continue; // cluster not associated to track
new (&backuptrack) AliITStrackMI(currenttrack2);
changedet = kTRUE;
currenttrack =¤ttrack2;
- if (!currenttrack->Propagate(det.GetPhi(),det.GetR())) {
+ if (!currenttrack->Propagate(detc.GetPhi(),detc.GetR())) {
new (currenttrack) AliITStrackMI(backuptrack);
changedet = kFALSE;
continue;
}
- currenttrack->SetDetectorIndex(idet);
+ currenttrack->SetDetectorIndex(idetc);
// Get again the budget to the primary vertex
// for the current track being prolonged, if had to change detector
//budgetToPrimVertex = GetEffectiveThickness();// not needed at the moment because anyway we take a mean material for this correction
// calculate track-clusters chi2
chi2trkcl = GetPredictedChi2MI(currenttrack,cl,ilayer);
// chi2 cut
+ //printf("chi2 %f max %f\n",chi2trkcl,AliITSReconstructor::GetRecoParam()->GetMaxChi2s(ilayer));
if (chi2trkcl < AliITSReconstructor::GetRecoParam()->GetMaxChi2s(ilayer)) {
if (cl->GetQ()==0) deadzoneSPD=kTRUE; // only 1 prolongation with virtual cluster
if (ntracks[ilayer]>=100) continue;
if (changedet) new (¤ttrack2) AliITStrackMI(backuptrack);
if (cl->GetQ()!=0) { // real cluster
- if (!UpdateMI(updatetrack,cl,chi2trkcl,(ilayer<<28)+clidx)) continue;
+ if (!UpdateMI(updatetrack,cl,chi2trkcl,(ilayer<<28)+clidx)) {
+ //printf("update failed\n");
+ continue;
+ }
updatetrack->SetSampledEdx(cl->GetQ(),updatetrack->GetNumberOfClusters()-1); //b.b.
modstatus = 1; // found
} else { // virtual cluster in dead zone
} //apply vertex constrain
ntracks[ilayer]++;
} // create new hypothesis
+ //else printf("chi2 too large\n");
} // loop over possible prolongations
// allow one prolongation without clusters
//--------------------------------------------------------------------
// AliITSlayer destructor
//--------------------------------------------------------------------
- delete[] fDetectors;
+ delete [] fDetectors;
for (Int_t i=0; i<fN; i++) delete fClusters[i];
for (Int_t i=0; i<AliITSRecoParam::GetMaxClusterPerLayer(); i++) {
fClusterWeight[i]=0;
return m;
}
//------------------------------------------------------------------------
+Bool_t AliITStrackerMI::ComputeRoad(AliITStrackMI* track,Int_t ilayer,Int_t idet,Double_t &zmin,Double_t &zmax,Double_t &ymin,Double_t &ymax) const {
+ //--------------------------------------------------------------------
+ // This function computes the rectangular road for this track
+ //--------------------------------------------------------------------
+
+
+ AliITSdetector &det = fgLayers[ilayer].GetDetector(idet);
+ // take into account the misalignment: propagate track to misaligned detector plane
+ if (!track->Propagate(det.GetPhi(),det.GetRmisal())) return kFALSE;
+
+ Double_t dz=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadZ()*
+ TMath::Sqrt(track->GetSigmaZ2() +
+ AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
+ AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
+ AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer));
+ Double_t dy=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadY()*
+ TMath::Sqrt(track->GetSigmaY2() +
+ AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
+ AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
+ AliITSReconstructor::GetRecoParam()->GetSigmaY2(ilayer));
+
+ // track at boundary between detectors, enlarge road
+ Double_t boundaryWidth=AliITSRecoParam::GetBoundaryWidth();
+ if ( (track->GetY()-dy < det.GetYmin()+boundaryWidth) ||
+ (track->GetY()+dy > det.GetYmax()-boundaryWidth) ||
+ (track->GetZ()-dz < det.GetZmin()+boundaryWidth) ||
+ (track->GetZ()+dz > det.GetZmax()-boundaryWidth) ) {
+ Float_t tgl = TMath::Abs(track->GetTgl());
+ if (tgl > 1.) tgl=1.;
+ Double_t deltaXNeighbDets=AliITSRecoParam::GetDeltaXNeighbDets();
+ dz = TMath::Sqrt(dz*dz+deltaXNeighbDets*deltaXNeighbDets*tgl*tgl);
+ Float_t snp = TMath::Abs(track->GetSnp());
+ if (snp > AliITSReconstructor::GetRecoParam()->GetMaxSnp()) return kFALSE;
+ dy = TMath::Sqrt(dy*dy+deltaXNeighbDets*deltaXNeighbDets*snp*snp);
+ } // boundary
+
+ // add to the road a term (up to 2-3 mm) to deal with misalignments
+ dy = TMath::Sqrt(dy*dy + AliITSReconstructor::GetRecoParam()->GetRoadMisal()*AliITSReconstructor::GetRecoParam()->GetRoadMisal());
+ dz = TMath::Sqrt(dz*dz + AliITSReconstructor::GetRecoParam()->GetRoadMisal()*AliITSReconstructor::GetRecoParam()->GetRoadMisal());
+
+ Double_t r = fgLayers[ilayer].GetR();
+ zmin = track->GetZ() - dz;
+ zmax = track->GetZ() + dz;
+ ymin = track->GetY() + r*det.GetPhi() - dy;
+ ymax = track->GetY() + r*det.GetPhi() + dy;
+
+ // bring track back to idead detector plane
+ if (!track->Propagate(det.GetPhi(),det.GetR())) return kFALSE;
+
+ return kTRUE;
+}
+//------------------------------------------------------------------------
void AliITStrackerMI::AliITSlayer::
SelectClusters(Double_t zmin,Double_t zmax,Double_t ymin, Double_t ymax) {
//--------------------------------------------------------------------
if (nz>=fNdetectors) return -1;
if (nz<0) return -1;
+ // ad hoc correction for 3rd ladder of SDD inner layer,
+ // which is reversed (rotated by pi around local y)
+ // this correction is OK only from AliITSv11Hybrid onwards
+ if (GetR()>12. && GetR()<20.) { // SDD inner
+ if(np==2) { // 3rd ladder
+ nz = (fNdetectors-1) - nz;
+ }
+ }
+ //printf("ndet %d phi %f z %f np %d nz %d\n",fNdetectors,phi,z,np,nz);
+
+
return np*fNdetectors + nz;
}
//------------------------------------------------------------------------
return d;
}
//------------------------------------------------------------------------
+AliITStrackerMI::AliITSdetector::AliITSdetector(const AliITSdetector& det):
+fR(det.fR),
+fRmisal(det.fRmisal),
+fPhi(det.fPhi),
+fSinPhi(det.fSinPhi),
+fCosPhi(det.fCosPhi),
+fYmin(det.fYmin),
+fYmax(det.fYmax),
+fZmin(det.fZmin),
+fZmax(det.fZmax),
+fIsBad(det.fIsBad),
+fNChips(det.fNChips),
+fChipIsBad(det.fChipIsBad)
+{
+ //Copy constructor
+}
+//------------------------------------------------------------------------
+void AliITStrackerMI::AliITSdetector::ReadBadDetectorAndChips(Int_t ilayer,Int_t idet,
+ AliITSDetTypeRec *detTypeRec)
+{
+ //--------------------------------------------------------------------
+ // Read bad detectors and chips from calibration objects in AliITSDetTypeRec
+ //--------------------------------------------------------------------
+
+ // In AliITSDetTypeRec, detector numbers go from 0 to 2197
+ // while in the tracker they start from 0 for each layer
+ for(Int_t il=0; il<ilayer; il++)
+ idet += AliITSgeomTGeo::GetNLadders(il+1)*AliITSgeomTGeo::GetNDetectors(il+1);
+
+ Int_t detType;
+ if (ilayer==0 || ilayer==1) { // ---------- SPD
+ detType = 0;
+ } else if (ilayer==2 || ilayer==3) { // ---------- SDD
+ detType = 1;
+ } else if (ilayer==4 || ilayer==5) { // ---------- SSD
+ detType = 2;
+ } else {
+ printf("AliITStrackerMI::AliITSdetector::InitBadFromOCDB: Wrong layer number %d\n",ilayer);
+ return;
+ }
+
+ // Get calibration from AliITSDetTypeRec
+ AliITSCalibration *calib = (AliITSCalibration*)detTypeRec->GetCalibrationModel(idet);
+ AliITSCalibration *calibSPDdead = 0;
+ if(detType==0) calibSPDdead = (AliITSCalibration*)detTypeRec->GetSPDDeadModel(idet); // TEMPORARY
+ if (calib->IsBad() ||
+ (detType==0 && calibSPDdead->IsBad())) // TEMPORARY
+ {
+ SetBad();
+ // printf("lay %d bad %d\n",ilayer,idet);
+ }
+
+ // Get segmentation from AliITSDetTypeRec
+ AliITSsegmentation *segm = (AliITSsegmentation*)detTypeRec->GetSegmentationModel(detType);
+
+ // Read info about bad chips
+ fNChips = segm->GetMaximumChipIndex()+1;
+ //printf("ilayer %d detType %d idet %d fNChips %d %d GetNumberOfChips %d\n",ilayer,detType,idet,fNChips,segm->GetMaximumChipIndex(),segm->GetNumberOfChips());
+ if(fChipIsBad) { delete [] fChipIsBad; fChipIsBad=NULL; }
+ fChipIsBad = new Bool_t[fNChips];
+ for (Int_t iCh=0;iCh<fNChips;iCh++) {
+ fChipIsBad[iCh] = calib->IsChipBad(iCh);
+ if (detType==0 && calibSPDdead->IsChipBad(iCh)) fChipIsBad[iCh] = kTRUE; // TEMPORARY
+ }
+
+ return;
+}
+//------------------------------------------------------------------------
Double_t AliITStrackerMI::GetEffectiveThickness()
{
//--------------------------------------------------------------------
}
//------------------------------------------------------------------------
Bool_t AliITStrackerMI::RefitAt(Double_t xx,AliITStrackMI *track,
- const AliITStrackMI *clusters,Bool_t extra)
+ const AliITStrackMI *clusters,Bool_t extra, Bool_t planeeff)
{
//--------------------------------------------------------------------
// This function refits the track "track" at the position "x" using
// the clusters from "clusters"
// If "extra"==kTRUE,
// the clusters from overlapped modules get attached to "track"
+ // If "planeff"==kTRUE,
+ // special approach for plane efficiency evaluation is applyed
//--------------------------------------------------------------------
Int_t index[AliITSgeomTGeo::kNLayers];
index[ilayer]=idx;
}
- return RefitAt(xx,track,index,extra); // call the method below
+ return RefitAt(xx,track,index,extra,planeeff); // call the method below
}
//------------------------------------------------------------------------
Bool_t AliITStrackerMI::RefitAt(Double_t xx,AliITStrackMI *track,
- const Int_t *clusters,Bool_t extra)
+ const Int_t *clusters,Bool_t extra, Bool_t planeeff)
{
//--------------------------------------------------------------------
// This function refits the track "track" at the position "x" using
// the clusters from array
// If "extra"==kTRUE,
// the clusters from overlapped modules get attached to "track"
+ // If "planeff"==kTRUE,
+ // special approach for plane efficiency evaluation is applyed
//--------------------------------------------------------------------
Int_t index[AliITSgeomTGeo::kNLayers];
Int_t k;
if (idet<0) return kFALSE;
const AliITSdetector &det=layer.GetDetector(idet);
- phi=det.GetPhi();
- if (!track->Propagate(phi,det.GetR())) return kFALSE;
+ if (!track->Propagate(det.GetPhi(),det.GetR())) return kFALSE;
+
track->SetDetectorIndex(idet);
LocalModuleCoord(ilayer,idet,track,xloc,zloc); // local module coords
- Double_t dz,zmin,zmax;
+ Double_t dz,zmin,zmax,dy,ymin,ymax;
const AliITSRecPoint *clAcc=0;
Double_t maxchi2=1000.*AliITSReconstructor::GetRecoParam()->GetMaxChi2();
if (cl) {
if (idet != cl->GetDetectorIndex()) {
idet=cl->GetDetectorIndex();
- const AliITSdetector &det=layer.GetDetector(idet);
- if (!track->Propagate(det.GetPhi(),det.GetR())) return kFALSE;
+ const AliITSdetector &detc=layer.GetDetector(idet);
+ if (!track->Propagate(detc.GetPhi(),detc.GetR())) return kFALSE;
track->SetDetectorIndex(idet);
LocalModuleCoord(ilayer,idet,track,xloc,zloc); // local module coords
}
- //Double_t chi2=track->GetPredictedChi2(cl);
Int_t cllayer = (idx & 0xf0000000) >> 28;;
Double_t chi2=GetPredictedChi2MI(track,cl,cllayer);
if (chi2<maxchi2) {
maxchi2=chi2;
modstatus = 1; // found
} else {
- return kFALSE;
+ return kFALSE; //
}
}
} else { // no cluster in this layer
if (skip==1) {
modstatus = 3; // skipped
+ // Plane Eff determination:
+ if (planeeff && ilayer==AliITSReconstructor::GetRecoParam()->GetIPlanePlaneEff()) {
+ if (IsOKForPlaneEff(track,clusters,ilayer)) // only adequate track for plane eff. evaluation
+ UseTrackForPlaneEff(track,ilayer);
+ }
} else {
modstatus = 5; // no cls in road
// check dead
- dz=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadZ()*
- TMath::Sqrt(track->GetSigmaZ2() +
- AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
- AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
- AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer));
- zmin=track->GetZ() - dz;
- zmax=track->GetZ() + dz;
- Int_t dead = CheckDeadZone(ilayer,idet,zmin,zmax);
+ if (!ComputeRoad(track,ilayer,idet,zmin,zmax,ymin,ymax)) return kFALSE;
+ dz = 0.5*(zmax-zmin);
+ dy = 0.5*(ymax-ymin);
+ Int_t dead = CheckDeadZone(track,ilayer,idet,dz,dy,kTRUE);
if (dead==1) modstatus = 7; // holes in z in SPD
- if (dead==2) modstatus = 2; // dead from OCDB
+ if (dead==2 || dead==3) modstatus = 2; // dead from OCDB
}
}
if (extra) { // search for extra clusters in overlapped modules
AliITStrackV2 tmp(*track);
- Double_t dy,ymin,ymax;
- dz=4*TMath::Sqrt(tmp.GetSigmaZ2()+AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer));
- if (dz < 0.5*TMath::Abs(tmp.GetTgl())) dz=0.5*TMath::Abs(tmp.GetTgl());
- dy=4*TMath::Sqrt(track->GetSigmaY2()+AliITSReconstructor::GetRecoParam()->GetSigmaY2(ilayer));
- if (dy < 0.5*TMath::Abs(tmp.GetSnp())) dy=0.5*TMath::Abs(tmp.GetSnp());
- zmin=track->GetZ() - dz;
- zmax=track->GetZ() + dz;
- ymin=track->GetY() + phi*r - dy;
- ymax=track->GetY() + phi*r + dy;
+ if (!ComputeRoad(track,ilayer,idet,zmin,zmax,ymin,ymax)) return kFALSE;
layer.SelectClusters(zmin,zmax,ymin,ymax);
const AliITSRecPoint *clExtra=0; Int_t ci=-1,cci=-1;
Int_t idetExtra=-1;
- Double_t maxchi2=1000.*AliITSReconstructor::GetRecoParam()->GetMaxChi2(), tolerance=0.1;
+ maxchi2=1000.*AliITSReconstructor::GetRecoParam()->GetMaxChi2();
+ Double_t tolerance=0.1;
while ((clExtra=layer.GetNextCluster(ci))!=0) {
// only clusters in another module! (overlaps)
idetExtra = clExtra->GetDetectorIndex();
if (idet == idetExtra) continue;
- const AliITSdetector &det=layer.GetDetector(idetExtra);
-
- if (!tmp.Propagate(det.GetPhi(),det.GetR())) continue;
+ const AliITSdetector &detx=layer.GetDetector(idetExtra);
+ if (!tmp.Propagate(detx.GetPhi(),detx.GetR()+clExtra->GetX())) continue;
if (TMath::Abs(tmp.GetZ() - clExtra->GetZ()) > tolerance) continue;
if (TMath::Abs(tmp.GetY() - clExtra->GetY()) > tolerance) continue;
+ if (!tmp.Propagate(detx.GetPhi(),detx.GetR())) continue;
Double_t chi2=tmp.GetPredictedChi2(clExtra);
if (chi2<maxchi2) { maxchi2=chi2; cci=ci; }
if (trackindex==2) sharedtrack =TMath::Min(tracks[0],tracks[1]);
else{
//
- Int_t track[24], cluster[24];
- for (Int_t i=0;i<trackindex;i++){ track[i]=-1; cluster[i]=0;}
+ Int_t tracks2[24], cluster[24];
+ for (Int_t i=0;i<trackindex;i++){ tracks2[i]=-1; cluster[i]=0;}
Int_t index =0;
//
for (Int_t i=0;i<trackindex;i++){
if (tracks[i]<0) continue;
- track[index] = tracks[i];
+ tracks2[index] = tracks[i];
cluster[index]++;
for (Int_t j=i+1;j<trackindex;j++){
if (tracks[j]<0) continue;
Int_t max=0;
for (Int_t i=0;i<index;i++){
if (cluster[index]>max) {
- sharedtrack=track[index];
+ sharedtrack=tracks2[index];
max=cluster[index];
}
}
//if (track2->fFakeRatio>0) continue;
Float_t nskipped=0;
RegisterClusterTracks(track2,trackID2);
- Int_t list1[6],list2[6];
- AliITSRecPoint *clist1[6], *clist2[6] ;
Float_t cconflict1 = GetNumberOfSharedClusters(track1,trackID1,list1,clist1);
Float_t cconflict2 = GetNumberOfSharedClusters(track2,trackID2,list2,clist2);
UnRegisterClusterTracks(track2,trackID2);
}
}
//
- Double_t chi21=0,chi22=0;
+ chi21=0;chi22=0;
if (TMath::Abs(track1->GetDy(i))>0.) {
chi21 = (track1->GetDy(i)/track1->GetSigmaY(i))*(track1->GetDy(i)/track1->GetSigmaY(i))+
(track1->GetDz(i)/track1->GetSigmaZ(i))*(track1->GetDz(i)/track1->GetSigmaZ(i));
// add track to the list of hypothesys
//------------------------------------------------------------------
- if (esdindex>=fTrackHypothesys.GetEntriesFast()) fTrackHypothesys.Expand(esdindex*2+10);
+ if (esdindex>=fTrackHypothesys.GetEntriesFast())
+ fTrackHypothesys.Expand(TMath::Max(fTrackHypothesys.GetSize(),esdindex*2+10));
//
TObjArray * array = (TObjArray*) fTrackHypothesys.At(esdindex);
if (!array) {
//take errors of best track as a reference
Float_t *erry = GetErrY(esdindex), *errz = GetErrZ(esdindex);
Float_t *ny = GetNy(esdindex), *nz = GetNz(esdindex);
- for (Int_t i=0;i<6;i++) {
- if (besttrack->GetClIndex(i)>0){
- erry[i] = besttrack->GetSigmaY(i); erry[i+6] = besttrack->GetSigmaY(i+6);
- errz[i] = besttrack->GetSigmaZ(i); errz[i+6] = besttrack->GetSigmaZ(i+6);
- ny[i] = besttrack->GetNy(i);
- nz[i] = besttrack->GetNz(i);
+ for (Int_t j=0;j<6;j++) {
+ if (besttrack->GetClIndex(j)>0){
+ erry[j] = besttrack->GetSigmaY(j); erry[j+6] = besttrack->GetSigmaY(j+6);
+ errz[j] = besttrack->GetSigmaZ(j); errz[j+6] = besttrack->GetSigmaZ(j+6);
+ ny[j] = besttrack->GetNy(j);
+ nz[j] = besttrack->GetNz(j);
}
}
//
TMath::Sort(entries,chi2,index,kFALSE);
besttrack = (AliITStrackMI*)array->At(index[0]);
if (besttrack&&besttrack->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)){
- for (Int_t i=0;i<6;i++){
- if (besttrack->GetClIndex(i)>0){
- erry[i] = besttrack->GetSigmaY(i); erry[i+6] = besttrack->GetSigmaY(i+6);
- errz[i] = besttrack->GetSigmaZ(i); erry[i+6] = besttrack->GetSigmaY(i+6);
- ny[i] = besttrack->GetNy(i);
- nz[i] = besttrack->GetNz(i);
+ for (Int_t j=0;j<6;j++){
+ if (besttrack->GetClIndex(j)>0){
+ erry[j] = besttrack->GetSigmaY(j); erry[j+6] = besttrack->GetSigmaY(j+6);
+ errz[j] = besttrack->GetSigmaZ(j); erry[j+6] = besttrack->GetSigmaY(j+6);
+ ny[j] = besttrack->GetNy(j);
+ nz[j] = besttrack->GetNz(j);
}
}
}
besttrack = (AliITStrackMI*)array->At(index[0]);
if (besttrack){
//
- for (Int_t i=0;i<6;i++){
- if (besttrack->GetNz(i)>0&&besttrack->GetNy(i)>0){
- erry[i] = besttrack->GetSigmaY(i); erry[i+6] = besttrack->GetSigmaY(i+6);
- errz[i] = besttrack->GetSigmaZ(i); errz[i+6] = besttrack->GetSigmaZ(i+6);
- ny[i] = besttrack->GetNy(i);
- nz[i] = besttrack->GetNz(i);
+ for (Int_t j=0;j<6;j++){
+ if (besttrack->GetNz(j)>0&&besttrack->GetNy(j)>0){
+ erry[j] = besttrack->GetSigmaY(j); erry[j+6] = besttrack->GetSigmaY(j+6);
+ errz[j] = besttrack->GetSigmaZ(j); errz[j+6] = besttrack->GetSigmaZ(j+6);
+ ny[j] = besttrack->GetNy(j);
+ nz[j] = besttrack->GetNz(j);
}
}
besttrack->SetChi2MIP(0,GetNormalizedChi2(besttrack,mode));
- Float_t minchi2 = TMath::Min(besttrack->GetChi2MIP(0)+5.+besttrack->GetNUsed(), double(AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)));
+ minchi2 = TMath::Min(besttrack->GetChi2MIP(0)+5.+besttrack->GetNUsed(), double(AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)));
Float_t minn = besttrack->GetNumberOfClusters()-3;
Int_t accepted=0;
for (Int_t i=0;i<entries;i++){
if (!shortbest) accepted++;
//
newarray->AddLast(array->RemoveAt(index[i]));
- for (Int_t i=0;i<6;i++){
- if (nz[i]==0){
- erry[i] = track->GetSigmaY(i); erry[i+6] = track->GetSigmaY(i+6);
- errz[i] = track->GetSigmaZ(i); errz[i] = track->GetSigmaZ(i+6);
- ny[i] = track->GetNy(i);
- nz[i] = track->GetNz(i);
+ for (Int_t j=0;j<6;j++){
+ if (nz[j]==0){
+ erry[j] = track->GetSigmaY(j); erry[j+6] = track->GetSigmaY(j+6);
+ errz[j] = track->GetSigmaZ(j); errz[j] = track->GetSigmaZ(j+6);
+ ny[j] = track->GetNy(j);
+ nz[j] = track->GetNz(j);
}
}
}
delete forwardtrack;
Int_t accepted=0;
for (Int_t i=0;i<entries;i++){
- AliITStrackMI * track = (AliITStrackMI*)array->At(i);
+ AliITStrackMI * track = (AliITStrackMI*)array->At(i);
+
if (!track) continue;
if (accepted>checkmax || track->GetChi2MIP(3)>AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)*6. ||
//
array->Compress();
SortTrackHypothesys(esdindex,checkmax,1);
+
array = (TObjArray*) fTrackHypothesys.At(esdindex);
if (!array) return 0; // PH What can be the reason? Check SortTrackHypothesys
besttrack = (AliITStrackMI*)array->At(0);
Float_t minn=0;
Float_t maxchi2=1000;
for (Int_t j=0;j<array->GetEntriesFast();j++){
- AliITStrackMI* track = (AliITStrackMI*)array->At(j);
- if (!track) continue;
- if (track->GetGoldV0()) {
- longtrack = track; //gold V0 track taken
+ AliITStrackMI* trackHyp = (AliITStrackMI*)array->At(j);
+ if (!trackHyp) continue;
+ if (trackHyp->GetGoldV0()) {
+ longtrack = trackHyp; //gold V0 track taken
break;
}
- if (track->GetNumberOfClusters()+track->GetNDeadZone()<minn) continue;
- Float_t chi2 = track->GetChi2MIP(0);
+ if (trackHyp->GetNumberOfClusters()+trackHyp->GetNDeadZone()<minn) continue;
+ Float_t chi2 = trackHyp->GetChi2MIP(0);
if (fAfterV0){
- if (!track->GetGoldV0()&&track->GetConstrain()==kFALSE) chi2+=5;
+ if (!trackHyp->GetGoldV0()&&trackHyp->GetConstrain()==kFALSE) chi2+=5;
}
- if (track->GetNumberOfClusters()+track->GetNDeadZone()>minn) maxchi2 = track->GetChi2MIP(0);
+ if (trackHyp->GetNumberOfClusters()+trackHyp->GetNDeadZone()>minn) maxchi2 = trackHyp->GetChi2MIP(0);
//
if (chi2 > maxchi2) continue;
- minn= track->GetNumberOfClusters()+track->GetNDeadZone();
+ minn= trackHyp->GetNumberOfClusters()+trackHyp->GetNDeadZone();
maxchi2 = chi2;
- longtrack=track;
+ longtrack=trackHyp;
}
//
//
Float_t phi = track->GetSnp();
phi = TMath::Sqrt(phi*phi/(1.-phi*phi));
AliITSClusterParam::GetError(layer,cluster,theta,phi,track->GetExpQ(),erry,errz);
+ //printf(" chi2: tr-cl %f %f tr X %f cl X %f\n",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->PropagateTo(xTrOrig+cluster->GetX(),0.,0.)) return 1000.;
+ //printf(" chi2: tr-cl %f %f tr X %f cl X %f\n",track->GetY()-cluster->GetY(),track->GetZ()-cluster->GetZ(),track->GetX(),cluster->GetX());
Double_t chi2 = track->GetPredictedChi2MI(cluster->GetY(),cluster->GetZ(),erry,errz);
+ // Bring the track back to detector plane in ideal geometry
+ // [mis-alignment will be accounted for in UpdateMI()]
+ if (!track->PropagateTo(xTrOrig,0.,0.)) return 1000.;
Float_t ny,nz;
AliITSClusterParam::GetNTeor(layer,cluster,theta,phi,ny,nz);
Double_t delta = cluster->GetNy()+cluster->GetNz()-nz-ny;
if (cl->GetQ()<=0) return 0; // ingore the "virtual" clusters
+
+ // Take into account the mis-alignment (bring track to cluster plane)
+ Double_t xTrOrig=track->GetX();
//Float_t clxyz[3]; cl->GetGlobalXYZ(clxyz);Double_t trxyz[3]; track->GetXYZ(trxyz);printf("gtr %f %f %f\n",trxyz[0],trxyz[1],trxyz[2]);printf("gcl %f %f %f\n",clxyz[0],clxyz[1],clxyz[2]);
+ //printf(" xtr %f xcl %f\n",track->GetX(),cl->GetX());
+ if (!track->PropagateTo(xTrOrig+cl->GetX(),0.,0.)) return 0;
- // Take into account the mis-alignment
- Double_t x=track->GetX()+cl->GetX();
- if (!track->PropagateTo(x,0.,0.)) return 0;
- return track->UpdateMI(cl->GetY(),cl->GetZ(),track->GetSigmaY(layer),track->GetSigmaZ(layer),chi2,index);
+ AliCluster c(*cl);
+ c.SetSigmaY2(track->GetSigmaY(layer)*track->GetSigmaY(layer));
+ c.SetSigmaZ2(track->GetSigmaZ(layer)*track->GetSigmaZ(layer));
+
+
+ Int_t updated = track->UpdateMI(&c,chi2,index);
+
+ // Bring the track back to detector plane in ideal geometry
+ if (!track->PropagateTo(xTrOrig,0.,0.)) return 0;
+
+ //if(!updated) printf("update failed\n");
+ return updated;
}
+
//------------------------------------------------------------------------
void AliITStrackerMI::GetDCASigma(AliITStrackMI* track, Float_t & sigmarfi, Float_t &sigmaz)
{
if (fnorm0<0) fnorm0*=-3;
Float_t fnorm1 = normdist[itrack1];
if (fnorm1<0) fnorm1*=-3;
- if (pvertex->GetAnglep()[2]>0.1 || (pvertex->GetRr()<10.5)&& pvertex->GetAnglep()[2]>0.05 || pvertex->GetRr()<3){
+ if ((pvertex->GetAnglep()[2]>0.1) || ( (pvertex->GetRr()<10.5)&& pvertex->GetAnglep()[2]>0.05 ) || (pvertex->GetRr()<3)){
pb0 = TMath::Exp(-TMath::Min(fnorm0,Float_t(16.))/12.);
pb1 = TMath::Exp(-TMath::Min(fnorm1,Float_t(16.))/12.);
}
Double_t point1[3],point2[3];
Double_t phi,cosphi,sinphi,z;
// 0-5 layers, 6 pipe, 7-8 shields
- Double_t rmin[9]={ 3.5, 5.5,13.0,22.0,35.0,41.0, 2.0, 7.5,25.0};
- Double_t rmax[9]={ 5.5, 7.3,17.0,26.0,41.0,47.0, 3.0,10.5,30.0};
+ Double_t rmin[9]={ 3.5, 5.5,13.0,22.0,35.0,41.0, 2.0, 8.0,25.0};
+ Double_t rmax[9]={ 5.5, 8.0,17.0,26.0,41.0,47.0, 3.0,10.5,30.0};
Int_t ifirst=0,ilast=0;
if(material.Contains("Pipe")) {
Float_t dir = (direction.Contains("inward") ? 1. : -1.);
Double_t rToGo=(dir>0 ? AliITSRecoParam::GetrInsidePipe() : AliITSRecoParam::GetrOutsidePipe());
- Double_t xToGo; t->GetLocalXat(rToGo,xToGo);
+ Double_t xToGo;
+ if (!t->GetLocalXat(rToGo,xToGo)) return 0;
Double_t xOverX0,x0,lengthTimesMeanDensity;
Bool_t anglecorr=kTRUE;
Error("CorrectForShieldMaterial"," Wrong shield name\n");
return 0;
}
- Double_t xToGo; t->GetLocalXat(rToGo,xToGo);
+ Double_t xToGo;
+ if (!t->GetLocalXat(rToGo,xToGo)) return 0;
Int_t index=2*fCurrentEsdTrack+shieldindex;
Double_t deltar=(layerindex<2 ? 0.10*r : 0.05*r);
Double_t rToGo=TMath::Sqrt(t->GetX()*t->GetX()+t->GetY()*t->GetY())-deltar*dir;
- Double_t xToGo; t->GetLocalXat(rToGo,xToGo);
+ Double_t xToGo;
+ if (!t->GetLocalXat(rToGo,xToGo)) return 0;
Int_t index=6*fCurrentEsdTrack+layerindex;
return 0;
}
//------------------------------------------------------------------------
-Int_t AliITStrackerMI::CheckDeadZone(/*AliITStrackMI *track,*/
+Int_t AliITStrackerMI::CheckDeadZone(AliITStrackMI *track,
Int_t ilayer,Int_t idet,
- Double_t zmin,Double_t zmax/*,Double_t ymin,Double_t ymax*/) const {
+ Double_t dz,Double_t dy,
+ Bool_t noClusters) const {
//-----------------------------------------------------------------
// This method is used to decide whether to allow a prolongation
// without clusters, because there is a dead zone in the road.
// In this case the return value is > 0:
// return 1: dead zone at z=0,+-7cm in SPD
- // return 2: dead area from the OCDB // NOT YET IMPLEMENTED
+ // return 2: all road is "bad" (dead or noisy) from the OCDB
+ // return 3: something "bad" (dead or noisy) from the OCDB
//-----------------------------------------------------------------
// check dead zones at z=0,+-7cm in the SPD
fSPDdetzcentre[2] - 0.5*AliITSRecoParam::GetSPDdetzlength(),
fSPDdetzcentre[3] - 0.5*AliITSRecoParam::GetSPDdetzlength()};
for (Int_t i=0; i<3; i++)
- if (zmin<zmaxdead[i] && zmax>zmindead[i]) return 1;
+ if (track->GetZ()-dz<zmaxdead[i] && track->GetZ()+dz>zmindead[i]) return 1;
}
- // check dead zones from OCDB
- if (!AliITSReconstructor::GetRecoParam()->GetUseDeadZonesFromOCDB()) return 0;
+ // check bad zones from OCDB
+ if (!AliITSReconstructor::GetRecoParam()->GetUseBadZonesFromOCDB()) return 0;
- if(idet<0) return 0;
+ if (idet<0) return 0;
- // look in OCDB (only entire dead modules for the moment)
- if (ilayer==0 || ilayer==1) { // SPD
- AliCDBEntry* cdbEntry = AliCDBManager::Instance()->Get("ITS/Calib/SPDDead");
- if (!cdbEntry) {
- Error("CheckDeadZone","Cannot get CDB entry for SPD\n");
- return 0;
- }
- TObjArray* spdEntry = (TObjArray*)cdbEntry->GetObject();
- if (!spdEntry) {
- Error("CheckDeadZone","Cannot get CDB entry for SPD\n");
- return 0;
- }
- if(ilayer==1) idet += AliITSgeomTGeo::GetNLadders(1)*AliITSgeomTGeo::GetNDetectors(1);
- //printf("SPD det: %d\n",idet);
- AliITSCalibrationSPD *calibSPD = (AliITSCalibrationSPD*)spdEntry->At(idet);
- if (calibSPD->IsBad()) return 2;
- } else if (ilayer==2 || ilayer==3) { // SDD
- AliCDBEntry* cdbEntry = AliCDBManager::Instance()->Get("ITS/Calib/CalibSDD");
- if (!cdbEntry) {
- Error("CheckDeadZone","Cannot get CDB entry for SDD\n");
- return 0;
- }
- TObjArray* sddEntry = (TObjArray*)cdbEntry->GetObject();
- if (!sddEntry) {
- Error("CheckDeadZone","Cannot get CDB entry for SDD\n");
- return 0;
- }
- if(ilayer==3) idet += AliITSgeomTGeo::GetNLadders(3)*AliITSgeomTGeo::GetNDetectors(3);
- //printf("SDD det: %d\n",idet);
- AliITSCalibrationSDD *calibSDD = (AliITSCalibrationSDD*)sddEntry->At(idet);
- if (calibSDD->IsDead()) return 2;
- } else if (ilayer==4 || ilayer==5) { // SSD
- } else {
- Error("CheckDeadZone","Wrong layer number\n");
- if(ilayer==5) idet += AliITSgeomTGeo::GetNLadders(5)*AliITSgeomTGeo::GetNDetectors(5);
- return 0;
+ AliITSdetector &det=fgLayers[ilayer].GetDetector(idet);
+
+ // check if this detector is bad
+ if (det.IsBad()) {
+ //printf("lay %d bad detector %d\n",ilayer,idet);
+ return 2;
+ }
+
+ Int_t detType=-1;
+ Float_t detSizeFactorX=0.0001,detSizeFactorZ=0.0001;
+ if (ilayer==0 || ilayer==1) { // ---------- SPD
+ detType = 0;
+ } else if (ilayer==2 || ilayer==3) { // ---------- SDD
+ detType = 1;
+ detSizeFactorX *= 2.;
+ } else if (ilayer==4 || ilayer==5) { // ---------- SSD
+ detType = 2;
+ }
+ AliITSsegmentation *segm = (AliITSsegmentation*)fDetTypeRec->GetSegmentationModel(detType);
+ if (detType==2) segm->SetLayer(ilayer+1);
+ Float_t detSizeX = detSizeFactorX*segm->Dx();
+ Float_t detSizeZ = detSizeFactorZ*segm->Dz();
+
+ // check if the road overlaps with bad chips
+ Float_t xloc,zloc;
+ LocalModuleCoord(ilayer,idet,track,xloc,zloc);
+ Float_t zlocmin = zloc-dz;
+ Float_t zlocmax = zloc+dz;
+ Float_t xlocmin = xloc-dy;
+ Float_t xlocmax = xloc+dy;
+ Int_t chipsInRoad[100];
+
+ if (TMath::Max(TMath::Abs(xlocmin),TMath::Abs(xlocmax))>0.5*detSizeX ||
+ TMath::Max(TMath::Abs(zlocmin),TMath::Abs(zlocmax))>0.5*detSizeZ) return 0;
+ //printf("lay %d det %d zmim zmax %f %f xmin xmax %f %f %f %f\n",ilayer,idet,zlocmin,zlocmax,xlocmin,xlocmax,segm->Dx(),segm->Dz());
+ Int_t nChipsInRoad = segm->GetChipsInLocalWindow(chipsInRoad,zlocmin,zlocmax,xlocmin,xlocmax);
+ //printf("lay %d nChipsInRoad %d\n",ilayer,nChipsInRoad);
+ if (!nChipsInRoad) return 0;
+
+ Bool_t anyBad=kFALSE,anyGood=kFALSE;
+ for (Int_t iCh=0; iCh<nChipsInRoad; iCh++) {
+ if (chipsInRoad[iCh]<0 || chipsInRoad[iCh]>det.GetNChips()-1) continue;
+ //printf(" chip %d bad %d\n",chipsInRoad[iCh],(Int_t)det.IsChipBad(chipsInRoad[iCh]));
+ if (det.IsChipBad(chipsInRoad[iCh])) {
+ anyBad=kTRUE;
+ } else {
+ anyGood=kTRUE;
+ }
}
+ if (!anyGood) return 2; // all chips in road are bad
+
+ if (anyBad) return 3; // at least a bad chip in road
+
+
+ if (!AliITSReconstructor::GetRecoParam()->GetUseSingleBadChannelsFromOCDB()
+ || ilayer==4 || ilayer==5 // SSD
+ || !noClusters) return 0;
+
+ // There are no clusters in road: check if there is at least
+ // a bad SPD pixel or SDD anode
+
+ if(ilayer==1 || ilayer==3 || ilayer==5)
+ idet += AliITSgeomTGeo::GetNLadders(ilayer)*AliITSgeomTGeo::GetNDetectors(ilayer);
+
+ //if (fITSChannelStatus->AnyBadInRoad(idet,zlocmin,zlocmax,xlocmin,xlocmax)) return 3;
+
+ if (fITSChannelStatus->FractionOfBadInRoad(idet,zlocmin,zlocmax,xlocmin,xlocmax) > AliITSReconstructor::GetRecoParam()->GetMinFractionOfBadInRoad()) return 3;
+
return 0;
}
//------------------------------------------------------------------------
Double_t xyzGlob[3],xyzLoc[3];
- track->GetXYZ(xyzGlob);
+ AliITSdetector &detector = fgLayers[ilayer].GetDetector(idet);
+ // take into account the misalignment: xyz at real detector plane
+ track->GetXYZAt(detector.GetRmisal(),GetBz(),xyzGlob);
AliITSgeomTGeo::GlobalToLocal(ilayer+1,lad,det,xyzGlob,xyzLoc);
return kTRUE;
}
//------------------------------------------------------------------------
+Bool_t AliITStrackerMI::IsOKForPlaneEff(AliITStrackMI* track, const Int_t *clusters, Int_t ilayer) const {
+//
+// Method to be optimized further:
+// Aim: decide whether a track can be used for PlaneEff evaluation
+// the decision is taken based on the track quality at the layer under study
+// no information on the clusters on this layer has to be used
+// The criterium is to reject tracks at boundaries between basic block (e.g. SPD chip)
+// the cut is done on number of sigmas from the boundaries
+//
+// Input: Actual track, layer [0,5] under study
+// Output: none
+// Return: kTRUE if this is a good track
+//
+// it will apply a pre-selection to obtain good quality tracks.
+// Here also you will have the possibility to put a control on the
+// impact point of the track on the basic block, in order to exclude border regions
+// this will be done by calling a proper method of the AliITSPlaneEff class.
+//
+// input: AliITStrackMI* track, ilayer= layer number [0,5]
+// return: Bool_t -> kTRUE if usable track, kFALSE if not usable.
+//
+ Int_t index[AliITSgeomTGeo::kNLayers];
+ Int_t k;
+ for (k=0; k<AliITSgeomTGeo::GetNLayers(); k++) index[k]=-1;
+ //
+ for (k=0; k<AliITSgeomTGeo::GetNLayers(); k++) {
+ index[k]=clusters[k];
+ }
+
+ if(!fPlaneEff)
+ {AliWarning("IsOKForPlaneEff: null pointer to AliITSPlaneEff"); return kFALSE;}
+ AliITSlayer &layer=fgLayers[ilayer];
+ Double_t r=layer.GetR();
+ 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--) {
+ 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++;
+ }
+ 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())
+ return kFALSE;
+ if(AliITSReconstructor::GetRecoParam()->GetRequireClusterInOuterLayerPlaneEff() && !nextout) return kFALSE;
+ if(AliITSReconstructor::GetRecoParam()->GetRequireClusterInInnerLayerPlaneEff() && !nextin) return kFALSE;
+ if(tmp.Pt() < AliITSReconstructor::GetRecoParam()->GetMinPtPlaneEff()) return kFALSE;
+ // if(AliITSReconstructor::GetRecoParam()->GetOnlyConstraintPlaneEff() && !tmp.GetConstrain()) return kFALSE;
+
+// detector number
+ Double_t phi,z;
+ if (!tmp.GetPhiZat(r,phi,z)) return kFALSE;
+ Int_t idet=layer.FindDetectorIndex(phi,z);
+ if(idet<0) { AliInfo(Form("cannot find detector"));
+ return kFALSE;}
+
+ // here check if it has good Chi Square.
+
+ //propagate to the intersection with the detector plane
+ const AliITSdetector &det=layer.GetDetector(idet);
+ if (!tmp.Propagate(det.GetPhi(),det.GetR())) return kFALSE;
+
+ Float_t locx; //
+ Float_t locz; //
+ if(!LocalModuleCoord(ilayer,idet,&tmp,locx,locz)) return kFALSE;
+ UInt_t key=fPlaneEff->GetKeyFromDetLocCoord(ilayer,idet,locx,locz);
+ if(key>fPlaneEff->Nblock()) return kFALSE;
+ Float_t blockXmn,blockXmx,blockZmn,blockZmx;
+ if (!fPlaneEff->GetBlockBoundaries(key,blockXmn,blockXmx,blockZmn,blockZmx)) 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 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
+
+ // exclude tracks at boundary between detectors
+ //Double_t boundaryWidth=AliITSRecoParam::GetBoundaryWidthPlaneEff();
+ Double_t boundaryWidth=0; // for the time being hard-wired, later on from AliITSRecoParam
+ 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) ||
+ (locz+dz > blockZmx-boundaryWidth) ) return kFALSE;
+ return kTRUE;
+}
+//------------------------------------------------------------------------
+void AliITStrackerMI::UseTrackForPlaneEff(AliITStrackMI* track, Int_t ilayer) {
+//
+// This Method has to be optimized! For the time-being it uses the same criteria
+// as those used in the search of extra clusters for overlapping modules.
+//
+// Method Purpose: estabilish whether a track has produced a recpoint or not
+// in the layer under study (For Plane efficiency)
+//
+// inputs: AliITStrackMI* track (pointer to a usable track)
+// outputs: none
+// side effects: update (by 1 count) the Plane Efficiency statistics of the basic block
+// traversed by this very track. In details:
+// - if a cluster can be associated to the track then call
+// AliITSPlaneEff::UpDatePlaneEff(key,kTRUE);
+// - if not, the AliITSPlaneEff::UpDatePlaneEff(key,kFALSE) is called
+//
+ if(!fPlaneEff)
+ {AliWarning("UseTrackForPlaneEff: null pointer to AliITSPlaneEff"); return;}
+ AliITSlayer &layer=fgLayers[ilayer];
+ Double_t r=layer.GetR();
+ AliITStrackMI tmp(*track);
+
+// detector number
+ Double_t phi,z;
+ if (!tmp.GetPhiZat(r,phi,z)) return;
+ Int_t idet=layer.FindDetectorIndex(phi,z);
+
+ if(idet<0) { AliInfo(Form("cannot find detector"));
+ return;}
+
+
+//propagate to the intersection with the detector plane
+ const AliITSdetector &det=layer.GetDetector(idet);
+ if (!tmp.Propagate(det.GetPhi(),det.GetR())) return;
+
+
+//***************
+// DEFINITION OF SEARCH ROAD FOR CLUSTERS SELECTION
+//
+ Double_t dz=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadZ()*
+ TMath::Sqrt(tmp.GetSigmaZ2() +
+ AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
+ AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
+ AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer));
+ Double_t dy=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadY()*
+ TMath::Sqrt(tmp.GetSigmaY2() +
+ AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
+ AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
+ AliITSReconstructor::GetRecoParam()->GetSigmaY2(ilayer));
+
+// road in global (rphi,z) [i.e. in tracking ref. system]
+ Double_t zmin = tmp.GetZ() - dz;
+ Double_t zmax = tmp.GetZ() + dz;
+ Double_t ymin = tmp.GetY() + r*det.GetPhi() - dy;
+ Double_t ymax = tmp.GetY() + r*det.GetPhi() + dy;
+
+// select clusters in road
+ layer.SelectClusters(zmin,zmax,ymin,ymax);
+
+// Define criteria for track-cluster association
+ Double_t msz = tmp.GetSigmaZ2() +
+ AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
+ AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
+ AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer);
+ Double_t msy = tmp.GetSigmaY2() +
+ AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
+ AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
+ AliITSReconstructor::GetRecoParam()->GetSigmaY2(ilayer);
+ if (tmp.GetConstrain()) {
+ msz *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadZC();
+ msy *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadYC();
+ } else {
+ msz *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadZNonC();
+ msy *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadYNonC();
+ }
+ msz = 1./msz; // 1/RoadZ^2
+ msy = 1./msy; // 1/RoadY^2
+//
+
+ const AliITSRecPoint *cl=0; Int_t clidx=-1, ci=-1;
+ Int_t idetc=-1;
+ Double_t chi2trkcl=1000.*AliITSReconstructor::GetRecoParam()->GetMaxChi2();
+ //Double_t tolerance=0.2;
+ /*while ((cl=layer.GetNextCluster(clidx))!=0) {
+ idetc = cl->GetDetectorIndex();
+ if(idet!=idetc) continue;
+ //Int_t ilay = cl->GetLayer();
+
+ if (TMath::Abs(tmp.GetZ() - cl->GetZ()) > tolerance) continue;
+ if (TMath::Abs(tmp.GetY() - cl->GetY()) > tolerance) continue;
+
+ Double_t chi2=tmp.GetPredictedChi2(cl);
+ if (chi2<chi2trkcl) { chi2trkcl=chi2; ci=clidx; }
+ }*/
+ Float_t locx; //
+ Float_t locz; //
+ if(!LocalModuleCoord(ilayer,idet,&tmp,locx,locz)) return;
+//
+ AliDebug(2,Form("ilayer= %d, idet=%d, x= %f, z=%f",ilayer,idet,locx,locz));
+ UInt_t key=fPlaneEff->GetKeyFromDetLocCoord(ilayer,idet,locx,locz);
+ if(key>fPlaneEff->Nblock()) return;
+ Bool_t found=kFALSE;
+ //if (ci>=0) {
+ Double_t chi2;
+ while ((cl=layer.GetNextCluster(clidx))!=0) {
+ idetc = cl->GetDetectorIndex();
+ if(idet!=idetc) continue;
+ // here real control to see whether the cluster can be associated to the track.
+ // cluster not associated to track
+ if ( (tmp.GetZ()-cl->GetZ())*(tmp.GetZ()-cl->GetZ())*msz +
+ (tmp.GetY()-cl->GetY())*(tmp.GetY()-cl->GetY())*msy > 1. ) continue;
+ // calculate track-clusters chi2
+ chi2 = GetPredictedChi2MI(&tmp,cl,ilayer); // note that this method change track tmp
+ // in particular, the error associated to the cluster
+ //Double_t chi2 = tmp.GetPredictedChi(cl); // this method does not change track tmp
+ // chi2 cut
+ if (chi2 > AliITSReconstructor::GetRecoParam()->GetMaxChi2s(ilayer)) continue;
+ found=kTRUE;
+ if (chi2<chi2trkcl) { chi2trkcl=chi2; ci=clidx; } // this just to trace which cluster is selected
+ // track->SetExtraCluster(ilayer,(ilayer<<28)+ci);
+ // track->SetExtraModule(ilayer,idetExtra);
+ }
+ if(!fPlaneEff->UpDatePlaneEff(found,key))
+ AliWarning(Form("UseTrackForPlaneEff: cannot UpDate PlaneEff for key=%d",key));
+ if(fPlaneEff->GetCreateHistos()&& AliITSReconstructor::GetRecoParam()->GetHistoPlaneEff()) {
+ 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};
+
+ tr[0]=locx;
+ tr[1]=locz;
+ tr[2]=TMath::Sqrt(tmp.GetSigmaY2()); // those are precisions in the tracking reference system
+ tr[3]=TMath::Sqrt(tmp.GetSigmaZ2()); // Use it also for the module reference system, as it is
+
+ if (found){
+ clu[0]=layer.GetCluster(ci)->GetDetLocalX();
+ clu[1]=layer.GetCluster(ci)->GetDetLocalZ();
+ cltype[0]=layer.GetCluster(ci)->GetNy();
+ cltype[1]=layer.GetCluster(ci)->GetNz();
+
+ // Without the following 6 lines you would retrieve the nominal error of a cluster (e.g. for the SPD:
+ // X->50/sqrt(12)=14 micron Z->450/sqrt(12)= 120 micron)
+ // Within AliTrackerMI/AliTrackMI the error on the cluster is associated to the AliITStrackMI (fSigmaY,Z)
+ // It is computed properly by calling the method
+ // AliITStrackerMI::GetPredictedChi2MI(AliITStrackMI* track, const AliITSRecPoint *cluster,Int_t layer)
+ // T
+ //Double_t x=0.5*(tmp.GetX()+layer.GetCluster(ci)->GetX()); // Take into account the mis-alignment
+ //if (tmp.PropagateTo(x,0.,0.)) {
+ chi2=GetPredictedChi2MI(&tmp,layer.GetCluster(ci),ilayer);
+ AliCluster c(*layer.GetCluster(ci));
+ c.SetSigmaY2(tmp.GetSigmaY(ilayer)*tmp.GetSigmaY(ilayer));
+ c.SetSigmaZ2(tmp.GetSigmaZ(ilayer)*tmp.GetSigmaZ(ilayer));
+ //if (layer.GetCluster(ci)->GetGlobalCov(cov)) // by using this, instead, you got nominal cluster errors
+ clu[2]=TMath::Sqrt(c.GetSigmaY2());
+ clu[3]=TMath::Sqrt(c.GetSigmaZ2());
+ //}
+ }
+ fPlaneEff->FillHistos(key,found,tr,clu,cltype);
+ }
+return;
+}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff