// 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 <TRandom.h>
+#include "AliLog.h"
#include "AliESDEvent.h"
#include "AliESDtrack.h"
#include "AliESDVertex.h"
#include "AliHelix.h"
#include "AliITSRecPoint.h"
#include "AliITSgeomTGeo.h"
-#include "AliITStrackerMI.h"
#include "AliITSReconstructor.h"
#include "AliTrackPointArray.h"
#include "AliAlignObj.h"
#include "AliITSClusterParam.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)
fCoefficients(0),
fEsd(0),
fTrackingPhase("Default"),
-fUseTGeo(0),
+fUseTGeo(3),
fNtracks(0),
fxOverX0Pipe(-1.),
fxTimesRhoPipe(-1.),
fxTimesRhoShieldTrks(0),
fxOverX0LayerTrks(0),
fxTimesRhoLayerTrks(0),
-fDebugStreamer(0){
+fDebugStreamer(0),
+fITSChannelStatus(0),
+fDetTypeRec(0),
+fPlaneEff(0) {
//Default constructor
Int_t i;
for(i=0;i<4;i++) fSPDdetzcentre[i]=0.;
fCoefficients(0),
fEsd(0),
fTrackingPhase("Default"),
-fUseTGeo(0),
+fUseTGeo(3),
fNtracks(0),
fxOverX0Pipe(-1.),
fxTimesRhoPipe(-1.),
fxTimesRhoShieldTrks(0),
fxOverX0LayerTrks(0),
fxTimesRhoLayerTrks(0),
-fDebugStreamer(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();
fSPDdetzcentre[3] = tr[2];
fUseTGeo = AliITSReconstructor::GetRecoParam()->GetUseTGeoInTracker();
+ if(AliITSReconstructor::GetRecoParam()->GetExtendedEtaAcceptance() && fUseTGeo!=1 && fUseTGeo!=3) {
+ AliWarning("fUseTGeo changed to 3 because fExtendedEtaAcceptance is kTRUE");
+ fUseTGeo = 3;
+ }
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");
+ // 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),
fxTimesRhoShieldTrks(0),
fxOverX0LayerTrks(0),
fxTimesRhoLayerTrks(0),
-fDebugStreamer(tracker.fDebugStreamer){
+fDebugStreamer(tracker.fDebugStreamer),
+fITSChannelStatus(tracker.fITSChannelStatus),
+fDetTypeRec(tracker.fDetTypeRec),
+fPlaneEff(tracker.fPlaneEff) {
//Copy constructor
Int_t i;
for(i=0;i<4;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");
+
+ if(!fDetTypeRec) Error("ReadBadFromDetTypeRec","AliITSDetTypeRec nof found!\n");
+
+ // ITS channels map
+ if(fITSChannelStatus) delete fITSChannelStatus;
+ fITSChannelStatus = new AliITSChannelStatus(fDetTypeRec);
+
+ // ITS detectors and chips
+ Int_t i=0,j=0,k=0,ndet=0;
+ for (i=1; i<AliITSgeomTGeo::GetNLayers()+1; i++) {
+ Int_t nBadDetsPerLayer=0;
+ 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);
+ 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)));
+ } // 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;
for (Float_t xdead = 0; xdead < AliITSRecoParam::GetSPDdetxlength(); xdead += (i+1.)*AliITSReconstructor::GetRecoParam()->GetXPassDeadZoneHits()) {
Int_t lab[4] = {0,0,0,detector};
Int_t info[3] = {0,0,i};
- Float_t q = 0.;
+ Float_t q = 0.; // this identifies virtual clusters
Float_t hit[5] = {xdead,
0.,
AliITSReconstructor::GetRecoParam()->GetSigmaXDeadZoneHit2(),
if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow)
fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local));
}
- }
+ } // "virtual" clusters in SPD
}
//
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);
Info("Clusters2Tracks", "Number of ESD tracks: %d\n", nentr);
while (nentr--) {
AliESDtrack *esd=event->GetTrack(nentr);
+ // ---- for debugging:
+ //if(TMath::Abs(esd->GetX()-83.65)<0.1) { FILE *f=fopen("tpc.dat","a"); fprintf(f,"%f %f %f %f %f %f\n",(Float_t)event->GetEventNumberInFile(),(Float_t)TMath::Abs(esd->GetLabel()),(Float_t)esd->GetX(),(Float_t)esd->GetY(),(Float_t)esd->GetZ(),(Float_t)esd->Pt()); fclose(f); }
if ((esd->GetStatus()&AliESDtrack::kTPCin)==0) continue;
if (esd->GetStatus()&AliESDtrack::kTPCout) continue;
}
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));
+
+
// look at the ESD mass hypothesys !
if (t->GetMass()<0.9*pimass) t->SetMass(pimass);
// write expected q
fTrackHypothesys.Expand(nentr);
fBestHypothesys.Expand(nentr);
MakeCoefficients(nentr);
- if(fUseTGeo==3 || fUseTGeo==4) MakeTrksMaterialLUT(nentr);
+ if(fUseTGeo==3 || fUseTGeo==4) MakeTrksMaterialLUT(event->GetNumberOfTracks());
Int_t ntrk=0;
// THE TWO TRACKING PASSES
for (fPass=0; fPass<2; fPass++) {
Int_t &constraint=fConstraint[fPass]; if (constraint<0) continue;
for (fCurrentEsdTrack=0; fCurrentEsdTrack<nentr; fCurrentEsdTrack++) {
- //cerr<<fPass<<" "<<fCurrentEsdTrack<<'\r';
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]) {
}
Int_t tpcLabel=t->GetLabel(); //save the TPC track label
+ AliDebug(2,Form("LABEL %d pass %d",tpcLabel,fPass));
fI = 6;
ResetTrackToFollow(*t);
ResetBestTrack();
+
FollowProlongationTree(t,fCurrentEsdTrack,fConstraint[fPass]);
+
SortTrackHypothesys(fCurrentEsdTrack,20,0); //MI change
//
- AliITStrackMI * besttrack = GetBestHypothesys(fCurrentEsdTrack,t,15);
+ AliITStrackMI *besttrack = GetBestHypothesys(fCurrentEsdTrack,t,15);
if (!besttrack) continue;
besttrack->SetLabel(tpcLabel);
// besttrack->CookdEdx();
if (fConstraint[fPass]&&(!besttrack->IsGoldPrimary())) continue; //to be tracked also without vertex constrain
t->SetReconstructed(kTRUE);
- ntrk++;
+ ntrk++;
+ AliDebug(2,Form("TRACK! (label %d) ncls %d",besttrack->GetLabel(),besttrack->GetNumberOfClusters()));
}
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();
+ AliDebug(2,Form("Refit LABEL %d %d",t->GetLabel(),t->GetNumberOfClusters()));
+ if (RefitAt(AliITSRecoParam::GetrInsideSPD1(),&fTrackToFollow,t,kTRUE,pe)) {
+ AliDebug(2," refit OK");
fTrackToFollow.SetLabel(t->GetLabel());
// fTrackToFollow.CookdEdx();
CookdEdx(&fTrackToFollow);
//The beam pipe
if (CorrectForPipeMaterial(&fTrackToFollow,"inward")) {
+ fTrackToFollow.UpdateESDtrack(AliESDtrack::kITSrefit);
AliESDtrack *esdTrack =fTrackToFollow.GetESDtrack();
- esdTrack->UpdateTrackParams(&fTrackToFollow,AliESDtrack::kITSrefit);
+ //printf(" %d\n",esdTrack->GetITSModuleIndex(0));
+ //esdTrack->UpdateTrackParams(&fTrackToFollow,AliESDtrack::kITSrefit); //original line
Float_t r[3]={0.,0.,0.};
Double_t maxD=3.;
esdTrack->RelateToVertex(event->GetVertex(),GetBz(r),maxD);
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:
Int_t c=(index & 0x0fffffff) >> 00;
const AliITSRecPoint *cl = fgLayers[l].GetCluster(c);
Int_t idet = cl->GetDetectorIndex();
+
const AliITSdetector &det=fgLayers[l].GetDetector(idet);
// tgphi and tglambda of the track in tracking frame with alpha=det.GetPhi
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,AliTracker::GetBz()));
+ Float_t phi = TMath::ASin(t->GetSnpAt(xdetintrackframe,GetBz()));
phi += alpha-det.GetPhi();
Float_t tgphi = TMath::Tan(phi);
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) {
break;
};
UShort_t volid = AliGeomManager::LayerToVolUID(iLayer,idet);
+
p.SetVolumeID((UShort_t)volid);
return kTRUE;
}
Double_t xyzVtx[]={GetX(),GetY(),GetZ()};
Double_t ersVtx[]={GetSigmaX(),GetSigmaY(),GetSigmaZ()};
+
AliESDtrack * esd = otrack->GetESDtrack();
if (esd->GetV0Index(0)>0) {
// TEMPORARY SOLLUTION: map V0 indexes to point to proper track
new (&(tracks[6][0])) AliITStrackMI(*otrack);
ntracks[6]=1;
for (Int_t i=0;i<7;i++) nindexes[i][0]=0;
+ Int_t modstatus = 1; // found
+ Float_t xloc,zloc;
//
//
// follow prolongations
for (Int_t ilayer=5; ilayer>=0; ilayer--) {
+ AliDebug(2,Form("FollowProlongationTree: layer %d",ilayer));
+ fI = ilayer;
//
- AliITSlayer &layer=fgLayers[ilayer];
- Double_t r=layer.GetR();
- Double_t deltar=(ilayer<2 ? 0.10*r : 0.05*r);
+ AliITSlayer &layer=fgLayers[ilayer];
+ Double_t r = layer.GetR();
ntracks[ilayer]=0;
//
//
- Int_t nskipped=0;
+ Int_t nskipped=0;
Float_t nused =0;
for (Int_t itrack =0; itrack<ntracks[ilayer+1]; itrack++) {
//set current track
if (ilayer==1)
if(!CorrectForShieldMaterial(¤ttrack1,"SPD","inward")) continue;
+ // detector number
Double_t phi,z;
if (!currenttrack1.GetPhiZat(r,phi,z)) continue;
-
Int_t idet=layer.FindDetectorIndex(phi,z);
+
+ Double_t trackGlobXYZ1[3];
+ if (!currenttrack1.GetXYZ(trackGlobXYZ1)) continue;
+
+ // Get the budget to the primary vertex for the current track being prolonged
+ Double_t budgetToPrimVertex = GetEffectiveThickness();
+
+ // check if we allow a prolongation without point
+ Int_t skip = CheckSkipLayer(¤ttrack1,ilayer,idet);
+ if (skip) {
+ AliITStrackMI* vtrack = new (&tracks[ilayer][ntracks[ilayer]]) AliITStrackMI(currenttrack1);
+ // propagate to the layer radius
+ Double_t xToGo; if (!vtrack->GetLocalXat(r,xToGo)) continue;
+ if(!vtrack->Propagate(xToGo)) continue;
+ // apply correction for material of the current layer
+ CorrectForLayerMaterial(vtrack,ilayer,trackGlobXYZ1,"inward");
+ vtrack->SetNDeadZone(vtrack->GetNDeadZone()+1);
+ vtrack->SetClIndex(ilayer,0);
+ modstatus = (skip==1 ? 3 : 4); // skipped : out in z
+ if(LocalModuleCoord(ilayer,idet,vtrack,xloc,zloc)) { // local module coords
+ vtrack->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
+ }
+ if(constrain) vtrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx);
+ ntracks[ilayer]++;
+ continue;
+ }
+
+ // track outside layer acceptance in z
if (idet<0) continue;
- //propagate to the intersection
+ //propagate to the intersection with the detector plane
const AliITSdetector &det=layer.GetDetector(idet);
new(¤ttrack2) AliITStrackMI(currenttrack1);
-
- Double_t trackGlobXYZ1[3];
- currenttrack1.GetXYZ(trackGlobXYZ1);
-
if (!currenttrack1.Propagate(det.GetPhi(),det.GetR())) continue;
- currenttrack2.Propagate(det.GetPhi(),det.GetR());
+ if (!currenttrack2.Propagate(det.GetPhi(),det.GetR())) continue;
currenttrack1.SetDetectorIndex(idet);
currenttrack2.SetDetectorIndex(idet);
-
- fI = ilayer;
- // Get the budget to the primary vertex and between the two layers
- // for the current track being prolonged (before searching for clusters
- // on this layer)
- Double_t budgetToPrimVertex = GetEffectiveThickness();
+ if(!LocalModuleCoord(ilayer,idet,¤ttrack1,xloc,zloc)) continue; // 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)
- 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;
+ // road in global (rphi,z) [i.e. in tracking ref. system]
+ 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
const AliITSRecPoint *cl=0;
Int_t clidx=-1;
Double_t chi2trkcl=AliITSReconstructor::GetRecoParam()->GetMaxChi2(); // init with big value
- Int_t deadzone=0;
+ Bool_t deadzoneSPD=kFALSE;
currenttrack = ¤ttrack1;
- // loop over selected clusters
+
+ // check if the road contains a dead zone
+ Bool_t noClusters = kFALSE;
+ if (!layer.GetNextCluster(clidx,kTRUE)) noClusters=kTRUE;
+ if (noClusters) AliDebug(2,"no clusters in road");
+ Double_t dz=0.5*(zmax-zmin);
+ Double_t dy=0.5*(ymax-ymin);
+ Int_t dead = CheckDeadZone(¤ttrack1,ilayer,idet,dz,dy,noClusters);
+ if(dead) AliDebug(2,Form("DEAD (%d)\n",dead));
+ // create a prolongation without clusters (check also if there are no clusters in the road)
+ if (dead ||
+ (noClusters &&
+ AliITSReconstructor::GetRecoParam()->GetAllowProlongationWithEmptyRoad())) {
+ AliITStrackMI * updatetrack = new (&tracks[ilayer][ntracks[ilayer]]) AliITStrackMI(*currenttrack);
+ updatetrack->SetClIndex(ilayer,0);
+ if (dead==0) {
+ modstatus = 5; // no cls in road
+ } else if (dead==1) {
+ modstatus = 7; // holes in z in SPD
+ } else if (dead==2 || dead==3) {
+ modstatus = 2; // dead from OCDB
+ }
+ updatetrack->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
+ // apply correction for material of the current layer
+ CorrectForLayerMaterial(updatetrack,ilayer,trackGlobXYZ1,"inward");
+ if (constrain) { // apply vertex constrain
+ updatetrack->SetConstrain(constrain);
+ Bool_t isPrim = kTRUE;
+ if (ilayer<4) { // check that it's close to the vertex
+ updatetrack->GetDZ(GetX(),GetY(),GetZ(),updatetrack->GetDP()); //I.B.
+ if (TMath::Abs(updatetrack->GetD(0)/(1.+ilayer)) > // y
+ AliITSReconstructor::GetRecoParam()->GetMaxDZforPrimTrk() ||
+ TMath::Abs(updatetrack->GetD(1)/(1.+ilayer)) > // z
+ AliITSReconstructor::GetRecoParam()->GetMaxDZforPrimTrk()) isPrim=kFALSE;
+ }
+ if (isPrim) updatetrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx);
+ }
+ if (dead) {
+ updatetrack->SetNDeadZone(updatetrack->GetNDeadZone()+1);
+ if (dead==1) { // dead zone at z=0,+-7cm in SPD
+ updatetrack->SetDeadZoneProbability(GetSPDDeadZoneProbability(updatetrack->GetZ(),TMath::Sqrt(updatetrack->GetSigmaZ2())));
+ deadzoneSPD=kTRUE;
+ }
+ }
+ ntracks[ilayer]++;
+ }
+
+ clidx=-1;
+ // loop over clusters in the road
while ((cl=layer.GetNextCluster(clidx))!=0) {
if (ntracks[ilayer]>95) break; //space for skipped clusters
Bool_t changedet =kFALSE;
- if (cl->GetQ()==0 && (deadzone==1)) continue;
- Int_t idet=cl->GetDetectorIndex();
+ if (cl->GetQ()==0 && deadzoneSPD==kTRUE) continue;
+ 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();
+ if (!currenttrack->Propagate(xTrOrig+cl->GetX())) continue;
// 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
+ AliDebug(2,"not associated");
+ continue;
+ }
+ // bring track back to ideal detector plane
+ if (!currenttrack->Propagate(xTrOrig)) continue;
} 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
+ AliDebug(2,Form("chi2 %f max %f",chi2trkcl,AliITSReconstructor::GetRecoParam()->GetMaxChi2s(ilayer)));
if (chi2trkcl < AliITSReconstructor::GetRecoParam()->GetMaxChi2s(ilayer)) {
- if (cl->GetQ()==0) deadzone=1; // take dead zone only once
+ if (cl->GetQ()==0) deadzoneSPD=kTRUE; // only 1 prolongation with virtual cluster
if (ntracks[ilayer]>=100) continue;
AliITStrackMI * updatetrack = new (&tracks[ilayer][ntracks[ilayer]]) AliITStrackMI(*currenttrack);
updatetrack->SetClIndex(ilayer,0);
if (changedet) new (¤ttrack2) AliITStrackMI(backuptrack);
-
- if (cl->GetQ()!=0) {
- if (!UpdateMI(updatetrack,cl,chi2trkcl,(ilayer<<28)+clidx)) continue;
+
+ if (cl->GetQ()!=0) { // real cluster
+ if (!UpdateMI(updatetrack,cl,chi2trkcl,(ilayer<<28)+clidx)) {
+ AliDebug(2,"update failed");
+ continue;
+ }
updatetrack->SetSampledEdx(cl->GetQ(),updatetrack->GetNumberOfClusters()-1); //b.b.
- } else { // cluster in dead zone
+ modstatus = 1; // found
+ } else { // virtual cluster in dead zone
updatetrack->SetNDeadZone(updatetrack->GetNDeadZone()+1);
- updatetrack->SetDeadZoneProbability(GetDeadZoneProbability(updatetrack->GetZ(),TMath::Sqrt(updatetrack->GetSigmaZ2())));
+ updatetrack->SetDeadZoneProbability(GetSPDDeadZoneProbability(updatetrack->GetZ(),TMath::Sqrt(updatetrack->GetSigmaZ2())));
+ modstatus = 7; // holes in z in SPD
+ }
+
+ if (changedet) {
+ Float_t xlocnewdet,zlocnewdet;
+ if(LocalModuleCoord(ilayer,idet,updatetrack,xlocnewdet,zlocnewdet)) { // local module coords
+ updatetrack->SetModuleIndexInfo(ilayer,idet,modstatus,xlocnewdet,zlocnewdet);
+ }
+ } else {
+ updatetrack->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
}
if (cl->IsUsed()) updatetrack->IncrementNUsed();
} //apply vertex constrain
ntracks[ilayer]++;
} // create new hypothesis
- } // loop over possible cluster prolongation
- if (constrain&&itrack<2&¤ttrack1.GetNSkipped()==0 && deadzone==0&&ntracks[ilayer]<100) {
- // Bring the track beyond the material
- currenttrack1.AliExternalTrackParam::PropagateTo(currenttrack1.GetX()-deltar,GetBz());
+ else {
+ AliDebug(2,"chi2 too large");
+ }
+
+ } // loop over possible prolongations
+
+ // allow one prolongation without clusters
+ if (constrain && itrack<=1 && currenttrack1.GetNSkipped()==0 && deadzoneSPD==kFALSE && ntracks[ilayer]<100) {
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,0);
+ modstatus = 3; // skipped
+ vtrack->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
vtrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx);
vtrack->IncrementNSkipped();
ntracks[ilayer]++;
}
- if (constrain&&itrack<1&&TMath::Abs(currenttrack1.GetTgl())>1.1) { //big theta - for low flux
- // Bring the track beyond the material
- currenttrack1.AliExternalTrackParam::PropagateTo(currenttrack1.GetX()-deltar,GetBz());
+ // allow one prolongation without clusters for tracks with |tgl|>1.1
+ if (constrain && itrack==0 && TMath::Abs(currenttrack1.GetTgl())>1.1) { //big theta - for low flux
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,0);
+ modstatus = 3; // skipped
+ vtrack->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
vtrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx);
vtrack->SetNDeadZone(vtrack->GetNDeadZone()+1);
ntracks[ilayer]++;
if (ntracks[ilayer]>90) ntracks[ilayer]=90;
} // end loop over layers
- //printf("%d\t%d\t%d\t%d\t%d\t%d\n",ntracks[0],ntracks[1],ntracks[2],ntracks[3],ntracks[4],ntracks[5]);
//
// Now select tracks to be kept
AliITStrackMI & track= tracks[0][nindexes[0][i]];
if (track.GetNumberOfClusters()<2) continue;
if (!constrain && track.GetNormChi2(0) >
- AliITSReconstructor::GetRecoParam()->GetMaxNormChi2NonCForHypothesis()) continue;
+ AliITSReconstructor::GetRecoParam()->GetMaxNormChi2NonCForHypothesis()) {
+ continue;
+ }
AddTrackHypothesys(new AliITStrackMI(track), esdindex);
}
AddTrackHypothesys(new AliITStrackMI(track), esdindex);
}
- // tracks that reack layer 2 (SDD inner), only during non-constrained pass
+ // tracks that reach layer 2 (SDD inner), only during non-constrained pass
if (!constrain){
for (Int_t i=0;i<TMath::Min(2,ntracks[2]);i++) {
AliITStrackMI & track= tracks[2][nindexes[2][i]];
//--------------------------------------------------------------------
// 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;
//
for (Int_t i=0;i<fN-1;i++){
if (fZ[i]>fZ[i+1]){
- printf("Bugg\n");
+ printf("Bug\n");
}
}
//
for (Int_t slice=0;slice<21;slice++)
for (Int_t i=0;i<fN20[slice]-1;i++){
if (fZ20[slice][i]>fZ20[slice][i+1]){
- printf("Bugg\n");
+ printf("Bug\n");
}
}
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) {
//--------------------------------------------------------------------
Double_t circle=2*TMath::Pi()*fR;
fYmin = ymin; fYmax =ymax;
Float_t ymiddle = (fYmin+fYmax)*0.5;
- if (ymiddle<fYB[0]) {fYmin+=circle; fYmax+=circle;ymiddle+=circle;}
- else{
- if (ymiddle>fYB[1]) {fYmin-=circle; fYmax-=circle;ymiddle-=circle;}
+ if (ymiddle<fYB[0]) {
+ fYmin+=circle; fYmax+=circle; ymiddle+=circle;
+ } else if (ymiddle>fYB[1]) {
+ fYmin-=circle; fYmax-=circle; ymiddle-=circle;
}
+
//
fCurrentSlice =-1;
// defualt take all
if (slice<0) slice=0;
if (slice>5) slice=5;
Bool_t isOK = (fYmin>fBy5[slice][0]&&fYmax<fBy5[slice][1]);
- if ( isOK){
+ if (isOK) {
fCurrentSlice=slice;
fClustersCs = fClusters5[fCurrentSlice];
fClusterIndexCs = fClusterIndex5[fCurrentSlice];
fImax = TMath::Min(FindClusterIndex(zmax)+1,fNcs);
fSkip = 0;
fAccepted =0;
+
+ return;
}
//------------------------------------------------------------------------
Int_t AliITStrackerMI::AliITSlayer::
else // new geometry
dphi = phi-fPhiOffset;
+
if (dphi < 0) dphi += 2*TMath::Pi();
else if (dphi >= 2*TMath::Pi()) dphi -= 2*TMath::Pi();
Int_t np=Int_t(dphi*fNladders*0.5/TMath::Pi()+0.5);
if (np>=fNladders) np-=fNladders;
if (np<0) np+=fNladders;
+
Double_t dz=fZOffset-z;
- Int_t nz=Int_t(dz*(fNdetectors-1)*0.5/fZOffset+0.5);
+ Double_t nnz = dz*(fNdetectors-1)*0.5/fZOffset+0.5;
+ Int_t nz = (nnz<0 ? -1 : (Int_t)nnz);
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;
}
//------------------------------------------------------------------------
-const AliITSRecPoint *AliITStrackerMI::AliITSlayer::GetNextCluster(Int_t &ci){
+const AliITSRecPoint *AliITStrackerMI::AliITSlayer::GetNextCluster(Int_t &ci,Bool_t test)
+{
//--------------------------------------------------------------------
// This function returns clusters within the "window"
//--------------------------------------------------------------------
- if (fCurrentSlice<0){
+ if (fCurrentSlice<0) {
Double_t rpi2 = 2.*fR*TMath::Pi();
for (Int_t i=fI; i<fImax; i++) {
Double_t y = fY[i];
if (y>fYmax) continue;
if (fClusters[i]->GetQ()==0&&fSkip==2) continue;
ci=i;
- fI=i+1;
+ if (!test) fI=i+1;
return fClusters[i];
}
- }
- else{
+ } else {
for (Int_t i=fI; i<fImax; i++) {
if (fYcs[i]<fYmin) continue;
if (fYcs[i]>fYmax) continue;
if (fClustersCs[i]->GetQ()==0&&fSkip==2) continue;
ci=fClusterIndexCs[i];
- fI=i+1;
+ if (!test) fI=i+1;
return fClustersCs[i];
}
}
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);
+ calib->SetModuleIndex(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
+ //if(fChipIsBad[iCh]) {printf("lay %d det %d bad chip %d\n",ilayer,idet,iCh);}
+ }
+
+ return;
+}
+//------------------------------------------------------------------------
Double_t AliITStrackerMI::GetEffectiveThickness()
{
//--------------------------------------------------------------------
}
//------------------------------------------------------------------------
Int_t AliITStrackerMI::AliITSlayer::InRoad() const {
- //--------------------------------------------------------------------
+ //-------------------------------------------------------------------
// This function returns number of clusters within the "window"
//--------------------------------------------------------------------
Int_t ncl=0;
return ncl;
}
//------------------------------------------------------------------------
-Bool_t AliITStrackerMI::RefitAt(Double_t xx,AliITStrackMI *t,
- const AliITStrackMI *c, Bool_t extra) {
+Bool_t AliITStrackerMI::RefitAt(Double_t xx,AliITStrackMI *track,
+ const AliITStrackMI *clusters,Bool_t extra, Bool_t planeeff)
+{
//--------------------------------------------------------------------
- // This function refits the track "t" at the position "x" using
- // the clusters from "c"
+ // 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 "t"
+ // 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;
for (k=0; k<AliITSgeomTGeo::GetNLayers(); k++) index[k]=-1;
- Int_t nc=c->GetNumberOfClusters();
+ Int_t nc=clusters->GetNumberOfClusters();
for (k=0; k<nc; k++) {
- Int_t idx=c->GetClusterIndex(k),nl=(idx&0xf0000000)>>28;
- index[nl]=idx;
- }
-
- // special for cosmics: check which the innermost layer crossed
- // by the track
- Int_t innermostlayer=5;
- Double_t d = TMath::Abs(t->GetD(0.,0.));
- for(innermostlayer=0; innermostlayer<AliITSgeomTGeo::GetNLayers(); innermostlayer++)
- if(d<fgLayers[innermostlayer].GetR()) break;
- //printf(" d %f innermost %d\n",d,innermostlayer);
-
- Int_t from, to, step;
- if (xx > t->GetX()) {
- from=innermostlayer; to=AliITSgeomTGeo::GetNLayers();
- step=+1;
- } else {
- from=AliITSgeomTGeo::GetNLayers()-1; to=innermostlayer-1;
- step=-1;
+ Int_t idx=clusters->GetClusterIndex(k);
+ Int_t ilayer=(idx&0xf0000000)>>28;
+ index[ilayer]=idx;
}
- TString dir=(step>0 ? "outward" : "inward");
- // loop on the layers
- for (Int_t i=from; i != to; i += step) {
- AliITSlayer &layer=fgLayers[i];
- Double_t r=layer.GetR();
-
- // material between SSD and SDD, SDD and SPD
- Double_t hI=i-0.5*step;
- if (TMath::Abs(hI-3.5)<0.01) // SDDouter
- if(!CorrectForShieldMaterial(t,"SDD",dir)) return kFALSE;
- if (TMath::Abs(hI-1.5)<0.01) // SPDouter
- if(!CorrectForShieldMaterial(t,"SPD",dir)) return kFALSE;
-
- // remember old position [SR, GSI 18.02.2003]
- Double_t oldX=0., oldY=0., oldZ=0.;
- if (t->IsStartedTimeIntegral() && step==1) {
- t->GetGlobalXYZat(t->GetX(),oldX,oldY,oldZ);
- }
- //
-
- Double_t oldGlobXYZ[3];
- t->GetXYZ(oldGlobXYZ);
-
- Double_t phi,z;
- if (!t->GetPhiZat(r,phi,z)) return kFALSE;
-
- Int_t idet=layer.FindDetectorIndex(phi,z);
- if (idet<0) return kFALSE;
-
- const AliITSdetector &det=layer.GetDetector(idet);
- phi=det.GetPhi();
- if (!t->Propagate(phi,det.GetR())) return kFALSE;
- t->SetDetectorIndex(idet);
-
- const AliITSRecPoint *cl=0;
- Double_t maxchi2=1000.*AliITSReconstructor::GetRecoParam()->GetMaxChi2();
-
- Int_t idx=index[i];
- if (idx>=0) {
- const AliITSRecPoint *c=(AliITSRecPoint *)GetCluster(idx);
- if (c){
- if (idet != c->GetDetectorIndex()) {
- idet=c->GetDetectorIndex();
- const AliITSdetector &det=layer.GetDetector(idet);
- if (!t->Propagate(det.GetPhi(),det.GetR())) {
- return kFALSE;
- }
- t->SetDetectorIndex(idet);
- }
- //Double_t chi2=t->GetPredictedChi2(c);
- Int_t layer = (idx & 0xf0000000) >> 28;;
- Double_t chi2=GetPredictedChi2MI(t,c,layer);
- if (chi2<maxchi2) {
- cl=c;
- maxchi2=chi2;
- } else {
- return kFALSE;
- }
- }
- }
-
- if (cl) {
- if (!UpdateMI(t,cl,maxchi2,idx)) return kFALSE;
- t->SetSampledEdx(cl->GetQ(),t->GetNumberOfClusters()-1);
- }
-
- if (extra) { //search for extra clusters
- AliITStrackV2 tmp(*t);
- Double_t dz=4*TMath::Sqrt(tmp.GetSigmaZ2()+AliITSReconstructor::GetRecoParam()->GetSigmaZ2(i));
- if (dz < 0.5*TMath::Abs(tmp.GetTgl())) dz=0.5*TMath::Abs(tmp.GetTgl());
- Double_t dy=4*TMath::Sqrt(t->GetSigmaY2()+AliITSReconstructor::GetRecoParam()->GetSigmaY2(i));
- if (dy < 0.5*TMath::Abs(tmp.GetSnp())) dy=0.5*TMath::Abs(tmp.GetSnp());
- Double_t zmin=t->GetZ() - dz;
- Double_t zmax=t->GetZ() + dz;
- Double_t ymin=t->GetY() + phi*r - dy;
- Double_t ymax=t->GetY() + phi*r + dy;
- layer.SelectClusters(zmin,zmax,ymin,ymax);
-
- const AliITSRecPoint *c=0; Int_t ci=-1,cci=-1;
- Double_t maxchi2=1000.*AliITSReconstructor::GetRecoParam()->GetMaxChi2(), tolerance=0.1;
- while ((c=layer.GetNextCluster(ci))!=0) {
- if (idet == c->GetDetectorIndex()) continue;
-
- const AliITSdetector &det=layer.GetDetector(c->GetDetectorIndex());
-
- if (!tmp.Propagate(det.GetPhi(),det.GetR())) continue;
-
- if (TMath::Abs(tmp.GetZ() - c->GetZ()) > tolerance) continue;
- if (TMath::Abs(tmp.GetY() - c->GetY()) > tolerance) continue;
-
- Double_t chi2=tmp.GetPredictedChi2(c);
- if (chi2<maxchi2) { maxchi2=chi2; cci=ci; }
- }
- if (cci>=0) t->SetExtraCluster(i,(i<<28)+cci);
- }
-
- // track time update [SR, GSI 17.02.2003]
- if (t->IsStartedTimeIntegral() && step==1) {
- Double_t newX, newY, newZ;
- t->GetGlobalXYZat(t->GetX(),newX,newY,newZ);
- Double_t dL2 = (oldX-newX)*(oldX-newX) + (oldY-newY)*(oldY-newY) +
- (oldZ-newZ)*(oldZ-newZ);
- t->AddTimeStep(TMath::Sqrt(dL2));
- }
- //
-
- // Correct for material of the current layer
- if(!CorrectForLayerMaterial(t,i,oldGlobXYZ,dir)) return kFALSE;
-
- } // end loop on the layers
-
- if (!t->PropagateTo(xx,0.,0.)) return kFALSE;
- return kTRUE;
+ return RefitAt(xx,track,index,extra,planeeff); // call the method below
}
//------------------------------------------------------------------------
-Bool_t
-AliITStrackerMI::RefitAt(Double_t xx,AliITStrackMI *t,const Int_t *clindex) {
+Bool_t AliITStrackerMI::RefitAt(Double_t xx,AliITStrackMI *track,
+ const Int_t *clusters,Bool_t extra, Bool_t planeeff)
+{
//--------------------------------------------------------------------
- // This function refits the track "t" at the position "x" using
+ // 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;
for (k=0; k<AliITSgeomTGeo::GetNLayers(); k++) index[k]=-1;
//
for (k=0; k<AliITSgeomTGeo::GetNLayers(); k++) {
- index[k]=clindex[k];
+ index[k]=clusters[k];
}
// special for cosmics: check which the innermost layer crossed
// by the track
Int_t innermostlayer=5;
- Double_t d = TMath::Abs(t->GetD(0.,0.));
- for(innermostlayer=0; innermostlayer<AliITSgeomTGeo::GetNLayers(); innermostlayer++)
- if(d<fgLayers[innermostlayer].GetR()) break;
- //printf(" d %f innermost %d\n",d,innermostlayer);
+ Double_t drphi = TMath::Abs(track->GetD(0.,0.));
+ for(innermostlayer=0; innermostlayer<AliITSgeomTGeo::GetNLayers(); innermostlayer++) {
+ if(drphi < fgLayers[innermostlayer].GetR()) break;
+ }
+ //printf(" drphi %f innermost %d\n",drphi,innermostlayer);
+ Int_t modstatus=1; // found
+ Float_t xloc,zloc;
Int_t from, to, step;
- if (xx > t->GetX()) {
+ if (xx > track->GetX()) {
from=innermostlayer; to=AliITSgeomTGeo::GetNLayers();
step=+1;
} else {
from=AliITSgeomTGeo::GetNLayers()-1; to=innermostlayer-1;
step=-1;
}
- TString dir=(step>0 ? "outward" : "inward");
+ TString dir = (step>0 ? "outward" : "inward");
- for (Int_t i=from; i != to; i += step) {
- AliITSlayer &layer=fgLayers[i];
+ for (Int_t ilayer = from; ilayer != to; ilayer += step) {
+ AliITSlayer &layer=fgLayers[ilayer];
Double_t r=layer.GetR();
if (step<0 && xx>r) break;
// material between SSD and SDD, SDD and SPD
- Double_t hI=i-0.5*step;
+ Double_t hI=ilayer-0.5*step;
if (TMath::Abs(hI-3.5)<0.01) // SDDouter
- if(!CorrectForShieldMaterial(t,"SDD",dir)) return kFALSE;
+ if(!CorrectForShieldMaterial(track,"SDD",dir)) return kFALSE;
if (TMath::Abs(hI-1.5)<0.01) // SPDouter
- if(!CorrectForShieldMaterial(t,"SPD",dir)) return kFALSE;
+ if(!CorrectForShieldMaterial(track,"SPD",dir)) return kFALSE;
// remember old position [SR, GSI 18.02.2003]
Double_t oldX=0., oldY=0., oldZ=0.;
- if (t->IsStartedTimeIntegral() && step==1) {
- t->GetGlobalXYZat(t->GetX(),oldX,oldY,oldZ);
+ if (track->IsStartedTimeIntegral() && step==1) {
+ if (!track->GetGlobalXYZat(track->GetX(),oldX,oldY,oldZ)) return kFALSE;
}
//
+
Double_t oldGlobXYZ[3];
- t->GetXYZ(oldGlobXYZ);
+ if (!track->GetXYZ(oldGlobXYZ)) return kFALSE;
+ //TMath::Sqrt(track->GetSigmaY2());
Double_t phi,z;
- if (!t->GetPhiZat(r,phi,z)) return kFALSE;
+ if (!track->GetPhiZat(r,phi,z)) return kFALSE;
Int_t idet=layer.FindDetectorIndex(phi,z);
+
+ // check if we allow a prolongation without point for large-eta tracks
+ Int_t skip = CheckSkipLayer(track,ilayer,idet);
+ if (skip==2) {
+ // propagate to the layer radius
+ Double_t xToGo; if (!track->GetLocalXat(r,xToGo)) return kFALSE;
+ if (!track->Propagate(xToGo)) return kFALSE;
+ // apply correction for material of the current layer
+ CorrectForLayerMaterial(track,ilayer,oldGlobXYZ,dir);
+ modstatus = 4; // out in z
+ if(LocalModuleCoord(ilayer,idet,track,xloc,zloc)) { // local module coords
+ track->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
+ }
+ // track time update [SR, GSI 17.02.2003]
+ if (track->IsStartedTimeIntegral() && step==1) {
+ Double_t newX, newY, newZ;
+ if (!track->GetGlobalXYZat(track->GetX(),newX,newY,newZ)) return kFALSE;
+ Double_t dL2 = (oldX-newX)*(oldX-newX) + (oldY-newY)*(oldY-newY) +
+ (oldZ-newZ)*(oldZ-newZ);
+ track->AddTimeStep(TMath::Sqrt(dL2));
+ }
+ continue;
+ }
+
if (idet<0) return kFALSE;
+
const AliITSdetector &det=layer.GetDetector(idet);
- phi=det.GetPhi();
- if (!t->Propagate(phi,det.GetR())) return kFALSE;
- t->SetDetectorIndex(idet);
+ if (!track->Propagate(det.GetPhi(),det.GetR())) return kFALSE;
+
+ track->SetDetectorIndex(idet);
+ if(!LocalModuleCoord(ilayer,idet,track,xloc,zloc)) return kFALSE; // local module coords
+
+ Double_t dz,zmin,zmax,dy,ymin,ymax;
- const AliITSRecPoint *cl=0;
+ const AliITSRecPoint *clAcc=0;
Double_t maxchi2=1000.*AliITSReconstructor::GetRecoParam()->GetMaxChi2();
- Int_t idx=index[i];
- if (idx>=0) {
- const AliITSRecPoint *c=(AliITSRecPoint *)GetCluster(idx);
- if (c){
- if (idet != c->GetDetectorIndex()) {
- idet=c->GetDetectorIndex();
- const AliITSdetector &det=layer.GetDetector(idet);
- if (!t->Propagate(det.GetPhi(),det.GetR())) {
- return kFALSE;
- }
- t->SetDetectorIndex(idet);
- }
- //Double_t chi2=t->GetPredictedChi2(c);
- Int_t layer = (idx & 0xf0000000) >> 28;;
- Double_t chi2=GetPredictedChi2MI(t,c,layer);
- if (chi2<maxchi2) {
- cl=c;
- maxchi2=chi2;
- } else {
- return kFALSE;
- }
- }
+ Int_t idx=index[ilayer];
+ if (idx>=0) { // cluster in this layer
+ modstatus = 6; // no refit
+ const AliITSRecPoint *cl=(AliITSRecPoint *)GetCluster(idx);
+ if (cl) {
+ if (idet != cl->GetDetectorIndex()) {
+ idet=cl->GetDetectorIndex();
+ const AliITSdetector &detc=layer.GetDetector(idet);
+ if (!track->Propagate(detc.GetPhi(),detc.GetR())) return kFALSE;
+ track->SetDetectorIndex(idet);
+ if(!LocalModuleCoord(ilayer,idet,track,xloc,zloc)) return kFALSE; // local module coords
+ }
+ Int_t cllayer = (idx & 0xf0000000) >> 28;;
+ Double_t chi2=GetPredictedChi2MI(track,cl,cllayer);
+ if (chi2<maxchi2) {
+ clAcc=cl;
+ maxchi2=chi2;
+ modstatus = 1; // found
+ } else {
+ 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
+ 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 || dead==3) modstatus = 2; // dead from OCDB
+ }
}
-
- if (cl) {
- if (!UpdateMI(t,cl,maxchi2,idx)) return kFALSE;
- t->SetSampledEdx(cl->GetQ(),t->GetNumberOfClusters()-1);
+
+ if (clAcc) {
+ if (!UpdateMI(track,clAcc,maxchi2,idx)) return kFALSE;
+ track->SetSampledEdx(clAcc->GetQ(),track->GetNumberOfClusters()-1);
}
-
+ track->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
+
+
+ if (extra) { // 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);
+
+ const AliITSRecPoint *clExtra=0; Int_t ci=-1,cci=-1;
+ Int_t idetExtra=-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 &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 (cci>=0) {
+ track->SetExtraCluster(ilayer,(ilayer<<28)+cci);
+ track->SetExtraModule(ilayer,idetExtra);
+ }
+ } // end search for extra clusters in overlapped modules
+
// Correct for material of the current layer
- if(!CorrectForLayerMaterial(t,i,oldGlobXYZ,dir)) return kFALSE;
+ if(!CorrectForLayerMaterial(track,ilayer,oldGlobXYZ,dir)) return kFALSE;
// track time update [SR, GSI 17.02.2003]
- if (t->IsStartedTimeIntegral() && step==1) {
+ if (track->IsStartedTimeIntegral() && step==1) {
Double_t newX, newY, newZ;
- t->GetGlobalXYZat(t->GetX(),newX,newY,newZ);
+ if (!track->GetGlobalXYZat(track->GetX(),newX,newY,newZ)) return kFALSE;
Double_t dL2 = (oldX-newX)*(oldX-newX) + (oldY-newY)*(oldY-newY) +
(oldZ-newZ)*(oldZ-newZ);
- t->AddTimeStep(TMath::Sqrt(dL2));
+ track->AddTimeStep(TMath::Sqrt(dL2));
}
//
- }
+ } // end loop on layers
+
+ if (!track->Propagate(xx)) return kFALSE;
- if (!t->PropagateTo(xx,0.,0.)) return kFALSE;
return kTRUE;
}
//------------------------------------------------------------------------
//
Double_t match = TMath::Sqrt(track->GetChi22());
if (track->GetConstrain()) match/=track->GetNumberOfClusters();
- if (!track->GetConstrain()) match/=track->GetNumberOfClusters()-2.;
+ if (!track->GetConstrain()) {
+ if (track->GetNumberOfClusters()>2) {
+ match/=track->GetNumberOfClusters()-2.;
+ } else {
+ match=0;
+ }
+ }
if (match<0) match=0;
Float_t deadzonefactor = (track->GetNDeadZone()>0) ? 3*(1.1-track->GetDeadZoneProbability()):0.;
Double_t normchi2 = 2*track->GetNSkipped()+match+deadzonefactor+(1+(2*track->GetNSkipped()+deadzonefactor)/track->GetNumberOfClusters())*
{
//
// return matching chi2 between two tracks
+ Double_t largeChi2=1000.;
+
AliITStrackMI track3(*track2);
- track3.Propagate(track1->GetAlpha(),track1->GetX());
+ if (!track3.Propagate(track1->GetAlpha(),track1->GetX())) return largeChi2;
TMatrixD vec(5,1);
vec(0,0)=track1->GetY() - track3.GetY();
vec(1,0)=track1->GetZ() - track3.GetZ();
return chi2(0,0);
}
//------------------------------------------------------------------------
-Double_t AliITStrackerMI::GetDeadZoneProbability(Double_t zpos, Double_t zerr)
+Double_t AliITStrackerMI::GetSPDDeadZoneProbability(Double_t zpos, Double_t zerr)
{
//
// return probability that given point (characterized by z position and error)
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);
AliITStrackMI *longtrack =0;
minchi2 =1000;
Float_t minn=besttrack->GetNumberOfClusters()+besttrack->GetNDeadZone();
- for (Int_t itrack=entries-1;itrack>0;itrack--){
+ for (Int_t itrack=entries-1;itrack>0;itrack--) {
AliITStrackMI * track = (AliITStrackMI*)array->At(itrack);
if (!track->GetConstrain()) continue;
if (track->GetNumberOfClusters()+track->GetNDeadZone()<minn) continue;
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;
}
//
//
for (Int_t ind=0;ind<3;ind++){
if (tpcLabel>0)
if (cl->GetLabel(ind)==tpcLabel) isWrong=0;
+ AliDebug(2,Form("icl %d ilab %d lab %d",i,ind,cl->GetLabel(ind)));
}
track->SetChi2MIP(9,track->GetChi2MIP(9)+isWrong*(2<<l));
nwrong+=isWrong;
else
track->SetLabel(tpcLabel);
}
+ AliDebug(2,Form(" nls %d wrong %d label %d tpcLabel %d\n",nclusters,nwrong,track->GetLabel(),tpcLabel));
}
//------------------------------------------------------------------------
Float_t phi = track->GetSnp();
phi = TMath::Sqrt(phi*phi/(1.-phi*phi));
AliITSClusterParam::GetError(layer,cluster,theta,phi,track->GetExpQ(),erry,errz);
+ 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);
+ // Bring the track back to detector plane in ideal geometry
+ // [mis-alignment will be accounted for in UpdateMI()]
+ if (!track->Propagate(xTrOrig)) 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
- //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]);
+ // 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);
+ AliDebug(2,Form("gtr %f %f %f",trxyz[0],trxyz[1],trxyz[2]));
+ AliDebug(2,Form("gcl %f %f %f",clxyz[0],clxyz[1],clxyz[2]));
+ AliDebug(2,Form(" xtr %f xcl %f",track->GetX(),cl->GetX()));
+
+ if (!track->Propagate(xTrOrig+cl->GetX())) 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->Propagate(xTrOrig)) return 0;
+
+ if(!updated) AliDebug(2,"update failed");
+ return updated;
}
+
//------------------------------------------------------------------------
void AliITStrackerMI::GetDCASigma(AliITStrackMI* track, Float_t & sigmarfi, Float_t &sigmaz)
{
//------------------------------------------------------------------------
Int_t AliITStrackerMI::GetNearestLayer(const Double_t *xr) const{
//
- //Get nearest upper layer close to the point xr.
+ // Get nearest upper layer close to the point xr.
// rough approximation
//
const Float_t kRadiuses[6]={4,6.5,15.03,24.,38.5,43.7};
//I.B. trackat0 = *bestLong;
new (&trackat0) AliITStrackMI(*bestLong);
Double_t xx,yy,zz,alpha;
- bestLong->GetGlobalXYZat(bestLong->GetX(),xx,yy,zz);
+ if (!bestLong->GetGlobalXYZat(bestLong->GetX(),xx,yy,zz)) continue;
alpha = TMath::ATan2(yy,xx);
- trackat0.Propagate(alpha,0);
+ if (!trackat0.Propagate(alpha,0)) continue;
// calculate normalized distances to the vertex
//
Float_t ptfac = (1.+100.*TMath::Abs(trackat0.GetC()));
//
//
TObjArray * array0b = (TObjArray*)fBestHypothesys.At(itrack0);
- if (!array0b&&pvertex->GetRr()<40 && TMath::Abs(track0->GetTgl())<1.1)
+ if (!array0b&&pvertex->GetRr()<40 && TMath::Abs(track0->GetTgl())<1.1) {
+ fCurrentEsdTrack = itrack0;
FollowProlongationTree((AliITStrackMI*)fOriginal.At(itrack0),itrack0, kFALSE);
+ }
TObjArray * array1b = (TObjArray*)fBestHypothesys.At(itrack1);
- if (!array1b&&pvertex->GetRr()<40 && TMath::Abs(track1->GetTgl())<1.1)
+ if (!array1b&&pvertex->GetRr()<40 && TMath::Abs(track1->GetTgl())<1.1) {
+ fCurrentEsdTrack = itrack1;
FollowProlongationTree((AliITStrackMI*)fOriginal.At(itrack1),itrack1, kFALSE);
+ }
//
AliITStrackMI * track0b = (AliITStrackMI*)fOriginal.At(itrack0);
AliITStrackMI * track1b = (AliITStrackMI*)fOriginal.At(itrack1);
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")) {
// Define budget mode:
// 0: material from AliITSRecoParam (hard coded)
- // 1: material from TGeo (on the fly)
+ // 1: material from TGeo in one step (on the fly)
// 2: material from lut
- // 3: material from TGeo (same for all hypotheses)
+ // 3: material from TGeo in one step (same for all hypotheses)
Int_t mode;
switch(fUseTGeo) {
case 0:
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;
xOverX0 = AliITSRecoParam::GetdPipe();
x0 = AliITSRecoParam::GetX0Be();
lengthTimesMeanDensity = xOverX0*x0;
+ lengthTimesMeanDensity *= dir;
+ if (!t->Propagate(xToGo)) return 0;
+ if (!t->CorrectForMeanMaterial(xOverX0,lengthTimesMeanDensity,anglecorr)) return 0;
break;
case 1:
if (!t->PropagateToTGeo(xToGo,1)) return 0;
- return 1;
break;
case 2:
if(fxOverX0Pipe<0) BuildMaterialLUT("Pipe");
xOverX0 = fxOverX0Pipe;
lengthTimesMeanDensity = fxTimesRhoPipe;
+ lengthTimesMeanDensity *= dir;
+ if (!t->Propagate(xToGo)) return 0;
+ if (!t->CorrectForMeanMaterial(xOverX0,lengthTimesMeanDensity,anglecorr)) return 0;
break;
case 3:
if(!fxOverX0PipeTrks || index<0 || index>=fNtracks) Error("CorrectForPipeMaterial","Incorrect usage of UseTGeo option!\n");
}
xOverX0 = fxOverX0PipeTrks[index];
lengthTimesMeanDensity = fxTimesRhoPipeTrks[index];
+ lengthTimesMeanDensity *= dir;
+ if (!t->Propagate(xToGo)) return 0;
+ if (!t->CorrectForMeanMaterial(xOverX0,lengthTimesMeanDensity,anglecorr)) return 0;
break;
}
- lengthTimesMeanDensity *= dir;
-
- if (!t->AliExternalTrackParam::PropagateTo(xToGo,GetBz())) return 0;
- if (!t->CorrectForMeanMaterial(xOverX0,lengthTimesMeanDensity,anglecorr)) return 0;
-
return 1;
}
//------------------------------------------------------------------------
// Define budget mode:
// 0: material from AliITSRecoParam (hard coded)
- // 1: material from TGeo (on the fly)
+ // 1: material from TGeo in steps of X cm (on the fly)
+ // X = AliITSRecoParam::GetStepSizeTGeo()
// 2: material from lut
- // 3: material from TGeo (same for all hypotheses)
+ // 3: material from TGeo in one step (same for all hypotheses)
Int_t mode;
switch(fUseTGeo) {
case 0:
shieldindex=0;
} else {
Error("CorrectForShieldMaterial"," Wrong shield name\n");
- // printf("%s\n",shield.Data());
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 xOverX0,x0,lengthTimesMeanDensity;
Bool_t anglecorr=kTRUE;
+ Int_t nsteps=1;
switch(mode) {
case 0:
xOverX0 = AliITSRecoParam::Getdshield(shieldindex);
x0 = AliITSRecoParam::GetX0shield(shieldindex);
lengthTimesMeanDensity = xOverX0*x0;
+ lengthTimesMeanDensity *= dir;
+ if (!t->Propagate(xToGo)) return 0;
+ if (!t->CorrectForMeanMaterial(xOverX0,lengthTimesMeanDensity,anglecorr)) return 0;
break;
case 1:
- if (!t->PropagateToTGeo(xToGo,1)) return 0;
- return 1;
+ nsteps= (Int_t)(TMath::Abs(t->GetX()-xToGo)/AliITSReconstructor::GetRecoParam()->GetStepSizeTGeo())+1;
+ if (!t->PropagateToTGeo(xToGo,nsteps)) return 0; // cross the material and apply correction
break;
case 2:
if(fxOverX0Shield[shieldindex]<0) BuildMaterialLUT("Shields");
xOverX0 = fxOverX0Shield[shieldindex];
lengthTimesMeanDensity = fxTimesRhoShield[shieldindex];
+ lengthTimesMeanDensity *= dir;
+ if (!t->Propagate(xToGo)) return 0;
+ if (!t->CorrectForMeanMaterial(xOverX0,lengthTimesMeanDensity,anglecorr)) return 0;
break;
case 3:
if(!fxOverX0ShieldTrks || index<0 || index>=2*fNtracks) Error("CorrectForShieldMaterial","Incorrect usage of UseTGeo option!\n");
}
xOverX0 = fxOverX0ShieldTrks[index];
lengthTimesMeanDensity = fxTimesRhoShieldTrks[index];
+ lengthTimesMeanDensity *= dir;
+ if (!t->Propagate(xToGo)) return 0;
+ if (!t->CorrectForMeanMaterial(xOverX0,lengthTimesMeanDensity,anglecorr)) return 0;
break;
}
- lengthTimesMeanDensity *= dir;
-
- if (!t->AliExternalTrackParam::PropagateTo(xToGo,GetBz())) return 0;
- if (!t->CorrectForMeanMaterial(xOverX0,lengthTimesMeanDensity,anglecorr)) return 0;
-
return 1;
}
//------------------------------------------------------------------------
// Define budget mode:
// 0: material from AliITSRecoParam (hard coded)
- // 1: material from TGeo (on the fly)
+ // 1: material from TGeo in stepsof X cm (on the fly)
+ // X = AliITSRecoParam::GetStepSizeTGeo()
// 2: material from lut
- // 3: material from TGeo (same for all hypotheses)
+ // 3: material from TGeo in one step (same for all hypotheses)
Int_t mode;
switch(fUseTGeo) {
case 0:
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;
- // Bring the track beyond the material
- if (!t->AliExternalTrackParam::PropagateTo(xToGo,GetBz())) return 0;
- Double_t globXYZ[3];
- t->GetXYZ(globXYZ);
Double_t xOverX0=0.0,x0=0.0,lengthTimesMeanDensity=0.0;
Double_t mparam[7];
Bool_t anglecorr=kTRUE;
+ Int_t nsteps=1;
switch(mode) {
case 0:
xOverX0 = fgLayers[layerindex].GetThickness(t->GetY(),t->GetZ(),x0);
lengthTimesMeanDensity = xOverX0*x0;
+ // Bring the track beyond the material
+ if (!t->Propagate(xToGo)) return 0;
+ lengthTimesMeanDensity *= dir;
+ if (!t->CorrectForMeanMaterial(xOverX0,lengthTimesMeanDensity,anglecorr)) return 0;
break;
case 1:
- AliTracker::MeanMaterialBudget(oldGlobXYZ,globXYZ,mparam);
- if(mparam[1]>900000) return 0;
- xOverX0=mparam[1];
- lengthTimesMeanDensity=mparam[0]*mparam[4];
- anglecorr=kFALSE;
+ Double_t rOld=TMath::Sqrt(oldGlobXYZ[0]*oldGlobXYZ[0]+oldGlobXYZ[1]*oldGlobXYZ[1]);
+ Double_t xOld;
+ if (!t->GetLocalXat(rOld,xOld)) return 0;
+ if (!t->Propagate(xOld)) return 0; // back before material (no correction)
+ nsteps = (Int_t)(TMath::Abs(xOld-xToGo)/AliITSReconstructor::GetRecoParam()->GetStepSizeTGeo())+1;
+ if (!t->PropagateToTGeo(xToGo,nsteps)) return 0; // cross the material and apply correction
break;
case 2:
if(fxOverX0Layer[layerindex]<0) BuildMaterialLUT("Layers");
xOverX0 = fxOverX0Layer[layerindex];
lengthTimesMeanDensity = fxTimesRhoLayer[layerindex];
+ // Bring the track beyond the material
+ if (!t->Propagate(xToGo)) return 0;
+ lengthTimesMeanDensity *= dir;
+ if (!t->CorrectForMeanMaterial(xOverX0,lengthTimesMeanDensity,anglecorr)) return 0;
break;
case 3:
if(!fxOverX0LayerTrks || index<0 || index>=6*fNtracks) Error("CorrectForLayerMaterial","Incorrect usage of UseTGeo option!\n");
- if(fxOverX0LayerTrks[index]<0) {
+ // Bring the track beyond the material
+ if (!t->Propagate(xToGo)) return 0;
+ Double_t globXYZ[3];
+ if (!t->GetXYZ(globXYZ)) return 0;
+ if (fxOverX0LayerTrks[index]<0) {
AliTracker::MeanMaterialBudget(oldGlobXYZ,globXYZ,mparam);
if(mparam[1]>900000) return 0;
Double_t angle=TMath::Sqrt((1.+t->GetTgl()*t->GetTgl())/
}
xOverX0 = fxOverX0LayerTrks[index];
lengthTimesMeanDensity = fxTimesRhoLayerTrks[index];
+ lengthTimesMeanDensity *= dir;
+ if (!t->CorrectForMeanMaterial(xOverX0,lengthTimesMeanDensity,anglecorr)) return 0;
break;
}
- lengthTimesMeanDensity *= dir;
-
- if (!t->CorrectForMeanMaterial(xOverX0,lengthTimesMeanDensity,anglecorr)) return 0;
-
return 1;
}
//------------------------------------------------------------------------
return;
}
//------------------------------------------------------------------------
+Int_t AliITStrackerMI::CheckSkipLayer(AliITStrackMI *track,
+ Int_t ilayer,Int_t idet) const {
+ //-----------------------------------------------------------------
+ // This method is used to decide whether to allow a prolongation
+ // without clusters, because we want to skip the layer.
+ // In this case the return value is > 0:
+ // return 1: the user requested to skip a layer
+ // return 2: track outside z acceptance of SSD/SDD and will cross both SPD
+ //-----------------------------------------------------------------
+
+ if (AliITSReconstructor::GetRecoParam()->GetLayersToSkip(ilayer)) return 1;
+
+ if (idet<0 && ilayer>1 && AliITSReconstructor::GetRecoParam()->GetExtendedEtaAcceptance()) {
+ // check if track will cross SPD outer layer
+ Double_t phiAtSPD2,zAtSPD2;
+ if (track->GetPhiZat(fgLayers[1].GetR(),phiAtSPD2,zAtSPD2)) {
+ if (TMath::Abs(zAtSPD2)<2.*AliITSRecoParam::GetSPDdetzlength()) return 2;
+ }
+ }
+
+ return 0;
+}
+//------------------------------------------------------------------------
+Int_t AliITStrackerMI::CheckDeadZone(AliITStrackMI *track,
+ Int_t ilayer,Int_t idet,
+ 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: 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
+ if (ilayer<2 && !AliITSReconstructor::GetRecoParam()->GetAddVirtualClustersInDeadZone()) {
+ Double_t zmindead[3]={fSPDdetzcentre[0] + 0.5*AliITSRecoParam::GetSPDdetzlength(),
+ fSPDdetzcentre[1] + 0.5*AliITSRecoParam::GetSPDdetzlength(),
+ fSPDdetzcentre[2] + 0.5*AliITSRecoParam::GetSPDdetzlength()};
+ Double_t zmaxdead[3]={fSPDdetzcentre[1] - 0.5*AliITSRecoParam::GetSPDdetzlength(),
+ fSPDdetzcentre[2] - 0.5*AliITSRecoParam::GetSPDdetzlength(),
+ fSPDdetzcentre[3] - 0.5*AliITSRecoParam::GetSPDdetzlength()};
+ for (Int_t i=0; i<3; i++)
+ if (track->GetZ()-dz<zmaxdead[i] && track->GetZ()+dz>zmindead[i]) {
+ AliDebug(2,Form("crack SPD %d",ilayer));
+ return 1;
+ }
+ }
+
+ // check bad zones from OCDB
+ if (!AliITSReconstructor::GetRecoParam()->GetUseBadZonesFromOCDB()) return 0;
+ if (idet<0) return 0;
+ AliITSdetector &det=fgLayers[ilayer].GetDetector(idet);
+ 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];
+
+ // check if road goes out of detector
+ Bool_t touchNeighbourDet=kFALSE;
+ if (TMath::Abs(xlocmin)>0.5*detSizeX) {xlocmin=-0.5*detSizeX; touchNeighbourDet=kTRUE;}
+ if (TMath::Abs(xlocmax)>0.5*detSizeX) {xlocmax=+0.5*detSizeX; touchNeighbourDet=kTRUE;}
+ if (TMath::Abs(zlocmin)>0.5*detSizeZ) {zlocmin=-0.5*detSizeZ; touchNeighbourDet=kTRUE;}
+ if (TMath::Abs(zlocmax)>0.5*detSizeZ) {zlocmax=+0.5*detSizeZ; touchNeighbourDet=kTRUE;}
+ AliDebug(2,Form("layer %d det %d zmim zmax %f %f xmin xmax %f %f %f %f",ilayer,idet,zlocmin,zlocmax,xlocmin,xlocmax,detSizeZ,detSizeX));
+
+ // check if this detector is bad
+ if (det.IsBad()) {
+ AliDebug(2,Form("lay %d bad detector %d",ilayer,idet));
+ if(!touchNeighbourDet) {
+ return 2; // all detectors in road are bad
+ } else {
+ return 3; // at least one is bad
+ }
+ }
+
+ Int_t nChipsInRoad = segm->GetChipsInLocalWindow(chipsInRoad,zlocmin,zlocmax,xlocmin,xlocmax);
+ AliDebug(2,Form("lay %d nChipsInRoad %d",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;
+ AliDebug(2,Form(" chip %d bad %d",chipsInRoad[iCh],(Int_t)det.IsChipBad(chipsInRoad[iCh])));
+ if (det.IsChipBad(chipsInRoad[iCh])) {
+ anyBad=kTRUE;
+ } else {
+ anyGood=kTRUE;
+ }
+ }
+
+ if (!anyGood) {
+ if(!touchNeighbourDet) {
+ AliDebug(2,"all bad in road");
+ return 2; // all chips in road are bad
+ } else {
+ return 3; // at least a bad chip in road
+ }
+ }
+
+ if (anyBad) {
+ AliDebug(2,"at least a bad in road");
+ 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
+ Int_t idetInITS=idet;
+ for(Int_t l=0;l<ilayer;l++) idetInITS+=AliITSgeomTGeo::GetNLadders(l+1)*AliITSgeomTGeo::GetNDetectors(l+1);
+
+ if (fITSChannelStatus->AnyBadInRoad(idetInITS,zlocmin,zlocmax,xlocmin,xlocmax)) {
+ AliDebug(2,Form("Bad channel in det %d of layer %d\n",idet,ilayer));
+ return 3;
+ }
+ //if (fITSChannelStatus->FractionOfBadInRoad(idet,zlocmin,zlocmax,xlocmin,xlocmax) > AliITSReconstructor::GetRecoParam()->GetMinFractionOfBadInRoad()) return 3;
+
+ return 0;
+}
+//------------------------------------------------------------------------
+Bool_t AliITStrackerMI::LocalModuleCoord(Int_t ilayer,Int_t idet,
+ AliITStrackMI *track,
+ Float_t &xloc,Float_t &zloc) const {
+ //-----------------------------------------------------------------
+ // Gives position of track in local module ref. frame
+ //-----------------------------------------------------------------
+
+ xloc=0.;
+ zloc=0.;
+
+ if(idet<0) return kFALSE;
+
+ Int_t ndet=AliITSgeomTGeo::GetNDetectors(ilayer+1); // layers from 1 to 6
+
+ Int_t lad = Int_t(idet/ndet) + 1;
+
+ Int_t det = idet - (lad-1)*ndet + 1;
+
+ Double_t xyzGlob[3],xyzLoc[3];
+
+ AliITSdetector &detector = fgLayers[ilayer].GetDetector(idet);
+ // take into account the misalignment: xyz at real detector plane
+ if(!track->GetXYZAt(detector.GetRmisal(),GetBz(),xyzGlob)) return kFALSE;
+
+ if(!AliITSgeomTGeo::GlobalToLocal(ilayer+1,lad,det,xyzGlob,xyzLoc)) return kFALSE;
+
+ xloc = (Float_t)xyzLoc[0];
+ zloc = (Float_t)xyzLoc[2];
+
+ 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