#include <TString.h>
#include <TRandom.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 "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),
+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),
+fPlaneEff(0) {
//--------------------------------------------------------------------
//This is the AliITStrackerMI constructor
//--------------------------------------------------------------------
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()) {
+ for(Int_t ilay=0;ilay<6;ilay++) {
+ if(AliITSReconstructor::GetRecoParam()->GetLayersToSkip(ilay)) {
+ if (ilay<2) fPlaneEff = new AliITSPlaneEffSPD();
+ else if (ilay<4) fPlaneEff = new AliITSPlaneEffSDD();
+ else fPlaneEff = new AliITSPlaneEffSSD();
+ break; // only one layer type to skip at once
+ }
+ }
+ if(AliITSReconstructor::GetRecoParam()->GetReadPlaneEffFromOCDB())
+ if(!fPlaneEff->ReadFromCDB()) {AliWarning("AliITStrackerMI reading of AliITSPlaneEff from OCDB failed") ;}
+ if(AliITSReconstructor::GetRecoParam()->GetHistoPlaneEff()) {
+ fPlaneEff->SetCreateHistos(kTRUE);
+ //fPlaneEff->ReadHistosFromFile();
+ }
+ }
}
//------------------------------------------------------------------------
AliITStrackerMI::AliITStrackerMI(const AliITStrackerMI &tracker):AliTracker(tracker),
fxTimesRhoShieldTrks(0),
fxOverX0LayerTrks(0),
fxTimesRhoLayerTrks(0),
-fDebugStreamer(tracker.fDebugStreamer){
+fDebugStreamer(tracker.fDebugStreamer),
+fPlaneEff(tracker.fPlaneEff) {
//Copy constructor
Int_t i;
for(i=0;i<4;i++) {
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
}
//
// This functions reconstructs ITS tracks
// The clusters must be already loaded !
//--------------------------------------------------------------------
+
+
fTrackingPhase="Clusters2Tracks";
TObjArray itsTracks(15000);
}
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';
+ //cerr<<fPass<<" "<<fCurrentEsdTrack<<'\n';
AliITStrackMI *t=(AliITStrackMI*)itsTracks.UncheckedAt(fCurrentEsdTrack);
if (t==0) continue; //this track has been already tracked
if (t->GetReconstructed()&&(t->GetNUsed()<1.5)) continue; //this track was already "succesfully" reconstructed
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();
GetBestHypothesysMIP(itsTracks);
} // end loop on the two tracking passes
- //GetBestHypothesysMIP(itsTracks);
if(event->GetNumberOfV0s()>0) UpdateTPCV0(event);
if(AliITSReconstructor::GetRecoParam()->GetFindV0s()) FindV02(event);
fAfterV0 = kTRUE;
- //GetBestHypothesysMIP(itsTracks);
//
itsTracks.Delete();
//
fTrackToFollow.ResetCovariance(10.);
//Refitting...
- if (RefitAt(AliITSRecoParam::GetrInsideSPD1(), &fTrackToFollow, t,kTRUE)) {
+ Bool_t pe=AliITSReconstructor::GetRecoParam()->GetComputePlaneEff();
+ if (RefitAt(AliITSRecoParam::GetrInsideSPD1(),&fTrackToFollow,t,kTRUE,pe)) {
fTrackToFollow.SetLabel(t->GetLabel());
// fTrackToFollow.CookdEdx();
CookdEdx(&fTrackToFollow);
//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);
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--) {
+ 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);
- if (idet<0) continue;
-
- //propagate to the intersection
- const AliITSdetector &det=layer.GetDetector(idet);
- new(¤ttrack2) AliITStrackMI(currenttrack1);
Double_t trackGlobXYZ1[3];
currenttrack1.GetXYZ(trackGlobXYZ1);
+ // 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; vtrack->GetLocalXat(r,xToGo);
+ vtrack->AliExternalTrackParam::PropagateTo(xToGo,GetBz());
+ // 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
+ 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 with the detector plane
+ const AliITSdetector &det=layer.GetDetector(idet);
+ new(¤ttrack2) AliITStrackMI(currenttrack1);
if (!currenttrack1.Propagate(det.GetPhi(),det.GetR())) continue;
+ LocalModuleCoord(ilayer,idet,¤ttrack1,xloc,zloc); // local module coords
currenttrack2.Propagate(det.GetPhi(),det.GetR());
currenttrack1.SetDetectorIndex(idet);
currenttrack2.SetDetectorIndex(idet);
-
- 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();
//***************
// DEFINITION OF SEARCH ROAD FOR CLUSTERS SELECTION
dy = TMath::Sqrt(dy*dy+deltaXNeighbDets*deltaXNeighbDets*snp*snp);
} // boundary
- // road in global (rphi,z)
+ // road in global (rphi,z) [i.e. in tracking ref. system]
Double_t zmin = currenttrack1.GetZ() - dz;
Double_t zmax = currenttrack1.GetZ() + dz;
Double_t ymin = currenttrack1.GetY() + r*det.GetPhi() - dy;
Double_t ymax = currenttrack1.GetY() + r*det.GetPhi() + dy;
+
// select clusters in road
layer.SelectClusters(zmin,zmax,ymin,ymax);
//********************
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
+ Int_t dead = CheckDeadZone(ilayer,idet,zmin,zmax);
+ // create a prolongation without clusters (check also if there are no clusters in the road)
+ if (dead ||
+ ((layer.GetNextCluster(clidx,kTRUE))==0 &&
+ 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) {
+ 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;
+ if (cl->GetQ()==0 && deadzoneSPD==kTRUE) continue;
Int_t idet=cl->GetDetectorIndex();
if (currenttrack->GetDetectorIndex()==idet) { // track already on the cluster's detector
chi2trkcl = GetPredictedChi2MI(currenttrack,cl,ilayer);
// chi2 cut
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 (cl->GetQ()!=0) { // real cluster
if (!UpdateMI(updatetrack,cl,chi2trkcl,(ilayer<<28)+clidx)) 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;
+ 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());
+ } // 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]];
//
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");
}
}
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;
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];
}
}
}
//------------------------------------------------------------------------
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) {
+ track->GetGlobalXYZat(track->GetX(),oldX,oldY,oldZ);
}
//
+
Double_t oldGlobXYZ[3];
- t->GetXYZ(oldGlobXYZ);
+ track->GetXYZ(oldGlobXYZ);
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; track->GetLocalXat(r,xToGo);
+ track->AliExternalTrackParam::PropagateTo(xToGo,GetBz());
+ // apply correction for material of the current layer
+ CorrectForLayerMaterial(track,ilayer,oldGlobXYZ,dir);
+ modstatus = 4; // out in z
+ 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;
+ track->GetGlobalXYZat(track->GetX(),newX,newY,newZ);
+ 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(phi,det.GetR())) return kFALSE;
+ track->SetDetectorIndex(idet);
+ LocalModuleCoord(ilayer,idet,track,xloc,zloc); // local module coords
+
+ Double_t dz,zmin,zmax;
- 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 &det=layer.GetDetector(idet);
+ if (!track->Propagate(det.GetPhi(),det.GetR())) return kFALSE;
+ track->SetDetectorIndex(idet);
+ LocalModuleCoord(ilayer,idet,track,xloc,zloc); // local module coords
+ }
+ //Double_t chi2=track->GetPredictedChi2(cl);
+ Int_t cllayer = (idx & 0xf0000000) >> 28;;
+ Double_t chi2=GetPredictedChi2MI(track,cl,cllayer);
+ if (chi2<maxchi2) {
+ 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 && AliITSReconstructor::GetRecoParam()->GetLayersToSkip(ilayer)) {
+ if (IsOKForPlaneEff(track,ilayer)) // only adequate track for plane eff. evaluation
+ UseTrackForPlaneEff(track,ilayer);
+ }
+ } else {
+ modstatus = 5; // no cls in road
+ // check dead
+ dz=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadZ()*
+ TMath::Sqrt(track->GetSigmaZ2() +
+ AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
+ AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
+ AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer));
+ zmin=track->GetZ() - dz;
+ zmax=track->GetZ() + dz;
+ Int_t dead = CheckDeadZone(ilayer,idet,zmin,zmax);
+ if (dead==1) modstatus = 7; // holes in z in SPD
+ if (dead==2) 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);
+ Double_t dy,ymin,ymax;
+ dz=4*TMath::Sqrt(tmp.GetSigmaZ2()+AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer));
+ if (dz < 0.5*TMath::Abs(tmp.GetTgl())) dz=0.5*TMath::Abs(tmp.GetTgl());
+ dy=4*TMath::Sqrt(track->GetSigmaY2()+AliITSReconstructor::GetRecoParam()->GetSigmaY2(ilayer));
+ if (dy < 0.5*TMath::Abs(tmp.GetSnp())) dy=0.5*TMath::Abs(tmp.GetSnp());
+ zmin=track->GetZ() - dz;
+ zmax=track->GetZ() + dz;
+ ymin=track->GetY() + phi*r - dy;
+ ymax=track->GetY() + phi*r + dy;
+ layer.SelectClusters(zmin,zmax,ymin,ymax);
+
+ const AliITSRecPoint *clExtra=0; Int_t ci=-1,cci=-1;
+ Int_t idetExtra=-1;
+ Double_t maxchi2=1000.*AliITSReconstructor::GetRecoParam()->GetMaxChi2(), tolerance=0.1;
+ while ((clExtra=layer.GetNextCluster(ci))!=0) {
+ // only clusters in another module! (overlaps)
+ idetExtra = clExtra->GetDetectorIndex();
+ if (idet == idetExtra) continue;
+
+ const AliITSdetector &det=layer.GetDetector(idetExtra);
+
+ if (!tmp.Propagate(det.GetPhi(),det.GetR())) continue;
+
+ if (TMath::Abs(tmp.GetZ() - clExtra->GetZ()) > tolerance) continue;
+ if (TMath::Abs(tmp.GetY() - clExtra->GetY()) > tolerance) 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);
+ track->GetGlobalXYZat(track->GetX(),newX,newY,newZ);
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->PropagateTo(xx,0.,0.)) 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 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)
// 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) {
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;
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]);
+ // 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
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));
+
+ return track->UpdateMI(&c,chi2,index);
}
+
//------------------------------------------------------------------------
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};
//
//
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);
shieldindex=0;
} else {
Error("CorrectForShieldMaterial"," Wrong shield name\n");
- // printf("%s\n",shield.Data());
return 0;
}
Double_t xToGo; t->GetLocalXat(rToGo,xToGo);
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 zmin,Double_t zmax/*,Double_t ymin,Double_t ymax*/) const {
+ //-----------------------------------------------------------------
+ // This method is used to decide whether to allow a prolongation
+ // without clusters, because there is a dead zone in the road.
+ // In this case the return value is > 0:
+ // return 1: dead zone at z=0,+-7cm in SPD
+ // return 2: dead area from the OCDB // NOT YET IMPLEMENTED
+ //-----------------------------------------------------------------
+
+ // 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 (zmin<zmaxdead[i] && zmax>zmindead[i]) return 1;
+ }
+
+ // check dead zones from OCDB
+ if (!AliITSReconstructor::GetRecoParam()->GetUseDeadZonesFromOCDB()) return 0;
+ if(idet<0) return 0;
+ // look in OCDB (only entire dead modules for the moment)
+ if (ilayer==0 || ilayer==1) { // SPD
+ AliCDBEntry* cdbEntry = AliCDBManager::Instance()->Get("ITS/Calib/SPDDead");
+ if (!cdbEntry) {
+ Error("CheckDeadZone","Cannot get CDB entry for SPD\n");
+ return 0;
+ }
+ TObjArray* spdEntry = (TObjArray*)cdbEntry->GetObject();
+ if (!spdEntry) {
+ Error("CheckDeadZone","Cannot get CDB entry for SPD\n");
+ return 0;
+ }
+ if(ilayer==1) idet += AliITSgeomTGeo::GetNLadders(1)*AliITSgeomTGeo::GetNDetectors(1);
+ //printf("SPD det: %d\n",idet);
+ AliITSCalibrationSPD *calibSPD = (AliITSCalibrationSPD*)spdEntry->At(idet);
+ if (calibSPD->IsBad()) return 2;
+ } else if (ilayer==2 || ilayer==3) { // SDD
+ AliCDBEntry* cdbEntry = AliCDBManager::Instance()->Get("ITS/Calib/CalibSDD");
+ if (!cdbEntry) {
+ Error("CheckDeadZone","Cannot get CDB entry for SDD\n");
+ return 0;
+ }
+ TObjArray* sddEntry = (TObjArray*)cdbEntry->GetObject();
+ if (!sddEntry) {
+ Error("CheckDeadZone","Cannot get CDB entry for SDD\n");
+ return 0;
+ }
+ if(ilayer==3) idet += AliITSgeomTGeo::GetNLadders(3)*AliITSgeomTGeo::GetNDetectors(3);
+ //printf("SDD det: %d\n",idet);
+ AliITSCalibrationSDD *calibSDD = (AliITSCalibrationSDD*)sddEntry->At(idet);
+ if (calibSDD->IsBad()) return 2;
+ } else if (ilayer==4 || ilayer==5) { // SSD
+ } else {
+ Error("CheckDeadZone","Wrong layer number\n");
+ if(ilayer==5) idet += AliITSgeomTGeo::GetNLadders(5)*AliITSgeomTGeo::GetNDetectors(5);
+ return 0;
+ }
+ 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];
+
+ track->GetXYZ(xyzGlob);
+
+ AliITSgeomTGeo::GlobalToLocal(ilayer+1,lad,det,xyzGlob,xyzLoc);
+
+ xloc = (Float_t)xyzLoc[0];
+ zloc = (Float_t)xyzLoc[2];
+
+ return kTRUE;
+}
+//------------------------------------------------------------------------
+Bool_t AliITStrackerMI::IsOKForPlaneEff(AliITStrackMI* track, Int_t ilayer) const {
+// Method still to be implemented:
+//
+// 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]
+// output: Bool_t -> kTRUE 2f usable track, kFALSE if not usable.
+ if(!fPlaneEff)
+ {AliWarning("IsOKForPlaneEff: null pointer to AliITSPlaneEff"); return kFALSE;}
+ AliITSlayer &layer=fgLayers[ilayer];
+ Double_t r=layer.GetR();
+ //AliITStrackV2 tmp(*track);
+ AliITStrackMI tmp(*track);
+
+// 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; //
+ LocalModuleCoord(ilayer,idet,&tmp,locx,locz);
+ 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;
+ // transform Local boundaries of the basic block into
+ // Global (i.e. ALICE, not tracking reference) coordinate
+ //
+ Double_t a1[3]={blockXmn,0.,blockZmn};
+ Double_t a2[3]={blockXmx,0.,blockZmn};
+ Double_t a3[3]={blockXmn,0.,blockZmx};
+ Int_t ndet=AliITSgeomTGeo::GetNDetectors(ilayer+1); // layers from 1 to 6
+ Int_t lad = Int_t(idet/ndet) + 1;
+ Int_t hdet = idet - (lad-1)*ndet + 1;
+ Double_t xyzGlob[3];
+ AliITSgeomTGeo::LocalToGlobal(ilayer+1,lad,hdet,a1,a1);
+ AliITSgeomTGeo::LocalToGlobal(ilayer+1,lad,hdet,a2,a2);
+ AliITSgeomTGeo::LocalToGlobal(ilayer+1,lad,hdet,a3,a3);
+ Double_t gBlockYmn,gBlockYmx,gBlockZmn,gBlockZmx;
+ if(a1[1]>a2[1]) {gBlockYmn=a2[1]; gBlockYmx=a1[1];}
+ else {gBlockYmn=a1[1]; gBlockYmx=a2[1];}
+ if(a2[2]>a3[2]) {gBlockZmn=a3[2]; gBlockZmx=a2[2];}
+ else {gBlockZmn=a2[2]; gBlockZmx=a3[2];}
+ AliDebug(2,Form("Boundaries in Global system Ymin=%f, Ymax=%f, Zmin=%f, Zmax=%f",
+ gBlockYmn,gBlockYmx,gBlockZmn,gBlockZmx));
+
+ //***************
+ // DEFINITION OF SEARCH ROAD FOR accepting a track
+ //
+ //For the time being they are hard-wired, later on from AliITSRecoParam
+ Double_t dz=4.*TMath::Sqrt(tmp.GetSigmaZ2()); // those are precisions in the tracking reference system
+ Double_t dy=4.*TMath::Sqrt(tmp.GetSigmaY2()); // dy needs to be reduced (it is max now) if you do
+ // comparison in Global Reference system
+ Float_t gdz=dz;
+ Float_t gdy=dy*TMath::Abs(TMath::Cos(tmp.GetAlpha()));
+
+ // exclude tracks at boundary between detectors
+ //Double_t boundaryWidth=AliITSRecoParam::GetBoundaryWidth();
+ 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()));
+ tmp.GetXYZ(xyzGlob);
+ AliDebug(2,Form("Global: track impact x=%f, y=%f, z=%f",xyzGlob[0],xyzGlob[1],xyzGlob[2]));
+ //AliInfo(Form("TEST GLOBAL track y = %f, z=%f",tmp.GetY(),tmp.GetZ()));
+ AliDebug(2,Form("Search Road. Tracking: dy=%f , dz=%f",dy,dz));
+ AliDebug(2,Form("Search Road. Global: Gdy=%f , Gdz=%f",gdy,gdz));
+ if ( (xyzGlob[1]-gdy < gBlockYmn+boundaryWidth) ||
+ (xyzGlob[1]+gdy > gBlockYmx-boundaryWidth) ||
+ (xyzGlob[2]-gdz < gBlockZmn+boundaryWidth) ||
+ (xyzGlob[2]+gdz > gBlockZmx-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();
+ //AliITStrackV2 tmp(*track);
+ 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;}
+
+ //Double_t trackGlobXYZ1[3];
+ //tmp.GetXYZ(trackGlobXYZ1);
+
+//propagate to the intersection with the detector plane
+ const AliITSdetector &det=layer.GetDetector(idet);
+ if (!tmp.Propagate(det.GetPhi(),det.GetR())) return;
+
+ //Float_t xloc,zloc;
+
+//***************
+// 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; //
+ LocalModuleCoord(ilayer,idet,&tmp,locx,locz);
+//
+ 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};
+ Int_t ndet=AliITSgeomTGeo::GetNDetectors(ilayer+1); // layers from 1 to 6
+ Int_t lad = Int_t(idet/ndet) + 1;
+ Int_t hdet = idet - (lad-1)*ndet + 1;
+ Double_t xyzGlob[3],xyzLoc[3],cv[21],exyzLoc[3],exyzGlob[3];
+ if(tmp.GetXYZ(xyzGlob)) {
+ if (AliITSgeomTGeo::GlobalToLocal(ilayer+1,lad,hdet,xyzGlob,xyzLoc)) {
+ tr[0]=xyzLoc[0];
+ tr[1]=xyzLoc[2];
+ }
+ }
+ if(tmp.GetCovarianceXYZPxPyPz(cv)) {
+ exyzGlob[0]=TMath::Sqrt(cv[0]);
+ exyzGlob[1]=TMath::Sqrt(cv[2]);
+ exyzGlob[2]=TMath::Sqrt(cv[5]);
+ if (AliITSgeomTGeo::GlobalToLocalVect(AliITSgeomTGeo::GetModuleIndex(ilayer+1,lad,hdet),exyzGlob,exyzLoc)) {
+ tr[2]=TMath::Abs(exyzLoc[0]);
+ tr[3]=TMath::Abs(exyzLoc[2]);
+ }
+ }
+ 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));
+ Float_t cov[6];
+ //if (layer.GetCluster(ci)->GetGlobalCov(cov)) // by using this, instead, you got nominal cluster errors
+ if (c.GetGlobalCov(cov))
+ {
+ exyzGlob[0]=TMath::Sqrt(cov[0]);
+ exyzGlob[1]=TMath::Sqrt(cov[3]);
+ exyzGlob[2]=TMath::Sqrt(cov[5]);
+ if (AliITSgeomTGeo::GlobalToLocalVect(AliITSgeomTGeo::GetModuleIndex(ilayer+1,lad,hdet),exyzGlob,exyzLoc)) {
+ clu[2]=TMath::Abs(exyzLoc[0]);
+ clu[3]=TMath::Abs(exyzLoc[2]);
+ }
+ }
+ //}
+ }
+ fPlaneEff->FillHistos(key,found,tr,clu,cltype);
+ }
+return;
+}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff