#include <TTree.h>
#include <TBits.h>
#include <TArrayI.h>
+#include <string.h>
#include "AliITSMultReconstructor.h"
#include "AliITSReconstructor.h"
-#include "AliITSsegmentationSPD.h"
#include "AliITSRecPoint.h"
#include "AliITSRecPointContainer.h"
#include "AliITSgeom.h"
#include "AliV0.h"
#include "AliKFParticle.h"
#include "AliKFVertex.h"
+#include "AliRefArray.h"
//____________________________________________________________________
ClassImp(AliITSMultReconstructor)
//____________________________________________________________________
AliITSMultReconstructor::AliITSMultReconstructor():
-fDetTypeRec(0),fESDEvent(0),fTreeRP(0),fUsedClusLay1(0),fUsedClusLay2(0),
-fClustersLay1(0),
-fClustersLay2(0),
-fDetectorIndexClustersLay1(0),
-fDetectorIndexClustersLay2(0),
-fOverlapFlagClustersLay1(0),
-fOverlapFlagClustersLay2(0),
+fDetTypeRec(0),fESDEvent(0),fTreeRP(0),fTreeRPMix(0),
fTracklets(0),
fSClusters(0),
-fNClustersLay1(0),
-fNClustersLay2(0),
fNTracklets(0),
fNSingleCluster(0),
-fPhiWindow(0),
-fThetaWindow(0),
+fDPhiWindow(0),
+fDThetaWindow(0),
fPhiShift(0),
fRemoveClustersFromOverlaps(0),
fPhiOverlapCut(0),
fZetaOverlapCut(0),
+fPhiRotationAngle(0),
+fScaleDTBySin2T(0),
+fNStdDev(1.0),
+fNStdDevSq(1.0),
//
fCutPxDrSPDin(0.1),
fCutPxDrSPDout(0.15),
fhetaTracklets(0),
fhphiTracklets(0),
fhetaClustersLay1(0),
-fhphiClustersLay1(0){
-
- fNFiredChips[0] = 0;
- fNFiredChips[1] = 0;
+fhphiClustersLay1(0),
+//
+ fDPhiShift(0),
+ fDPhiWindow2(0),
+ fDThetaWindow2(0),
+ fPartners(0),
+ fAssociatedLay1(0),
+ fMinDists(0),
+ fBlackList(0),
+//
+ fCreateClustersCopy(0),
+ fClustersLoaded(0),
+ fRecoDone(0),
+ fSPDSeg()
+{
+ // default c-tor
+ for (int i=0;i<2;i++) {
+ fNFiredChips[i] = 0;
+ fClArr[i] = 0;
+ for (int j=0;j<2;j++) fUsedClusLay[i][j] = 0;
+ fDetectorIndexClustersLay[i] = 0;
+ fOverlapFlagClustersLay[i] = 0;
+ fNClustersLay[i] = 0;
+ fClustersLay[i] = 0;
+ }
// Method to reconstruct the charged particles multiplicity with the
// SPD (tracklets).
-
+
SetHistOn();
if(AliITSReconstructor::GetRecoParam()) {
SetRemoveClustersFromOverlaps(AliITSReconstructor::GetRecoParam()->GetTrackleterRemoveClustersFromOverlaps());
SetPhiOverlapCut(AliITSReconstructor::GetRecoParam()->GetTrackleterPhiOverlapCut());
SetZetaOverlapCut(AliITSReconstructor::GetRecoParam()->GetTrackleterZetaOverlapCut());
+ SetPhiRotationAngle(AliITSReconstructor::GetRecoParam()->GetTrackleterPhiRotationAngle());
+ SetNStdDev(AliITSReconstructor::GetRecoParam()->GetTrackleterNStdDevCut());
+ SetScaleDThetaBySin2T(AliITSReconstructor::GetRecoParam()->GetTrackleterScaleDThetaBySin2T());
//
SetCutPxDrSPDin(AliITSReconstructor::GetRecoParam()->GetMultCutPxDrSPDin());
SetCutPxDrSPDout(AliITSReconstructor::GetRecoParam()->GetMultCutPxDrSPDout());
SetRemoveClustersFromOverlaps();
SetPhiOverlapCut();
SetZetaOverlapCut();
+ SetPhiRotationAngle();
+
//
SetCutPxDrSPDin();
SetCutPxDrSPDout();
SetCutK0SFromDecay();
SetCutMaxDCA();
}
-
- fClustersLay1 = 0;
- fClustersLay2 = 0;
- fDetectorIndexClustersLay1 = 0;
- fDetectorIndexClustersLay2 = 0;
- fOverlapFlagClustersLay1 = 0;
- fOverlapFlagClustersLay2 = 0;
+ //
fTracklets = 0;
fSClusters = 0;
-
+ //
// definition of histograms
Bool_t oldStatus = TH1::AddDirectoryStatus();
TH1::AddDirectory(kFALSE);
fhphiTracklets = new TH1F("phiTracklets", "phi", 100, 0., 2*TMath::Pi());
fhetaClustersLay1 = new TH1F("etaClustersLay1", "etaCl1", 100,-2.,2.);
fhphiClustersLay1 = new TH1F("phiClustersLay1", "phiCl1", 100, 0., 2*TMath::Pi());
-
+ for (int i=2;i--;) fStoreRefs[i][0] = fStoreRefs[i][1] = kFALSE;
TH1::AddDirectory(oldStatus);
}
//______________________________________________________________________
AliITSMultReconstructor::AliITSMultReconstructor(const AliITSMultReconstructor &mr) :
AliTrackleter(mr),
-fDetTypeRec(0),fESDEvent(0),fTreeRP(0),fUsedClusLay1(0),fUsedClusLay2(0),
-fClustersLay1(0),
-fClustersLay2(0),
-fDetectorIndexClustersLay1(0),
-fDetectorIndexClustersLay2(0),
-fOverlapFlagClustersLay1(0),
-fOverlapFlagClustersLay2(0),
+fDetTypeRec(0),fESDEvent(0),fTreeRP(0),fTreeRPMix(0),
fTracklets(0),
fSClusters(0),
-fNClustersLay1(0),
-fNClustersLay2(0),
fNTracklets(0),
fNSingleCluster(0),
-fPhiWindow(0),
-fThetaWindow(0),
+fDPhiWindow(0),
+fDThetaWindow(0),
fPhiShift(0),
fRemoveClustersFromOverlaps(0),
fPhiOverlapCut(0),
fZetaOverlapCut(0),
+fPhiRotationAngle(0),
+fScaleDTBySin2T(0),
+fNStdDev(1.0),
+fNStdDevSq(1.0),
//
fCutPxDrSPDin(0.1),
fCutPxDrSPDout(0.15),
fhetaTracklets(0),
fhphiTracklets(0),
fhetaClustersLay1(0),
-fhphiClustersLay1(0)
+fhphiClustersLay1(0),
+fDPhiShift(0),
+fDPhiWindow2(0),
+fDThetaWindow2(0),
+fPartners(0),
+fAssociatedLay1(0),
+fMinDists(0),
+fBlackList(0),
+//
+fCreateClustersCopy(0),
+fClustersLoaded(0),
+fRecoDone(0),
+fSPDSeg()
{
// Copy constructor :!!! RS ATTENTION: old c-tor reassigned the pointers instead of creating a new copy -> would crash on delete
AliError("May not use");
delete fhphiTracklets;
delete fhetaClustersLay1;
delete fhphiClustersLay1;
- delete[] fUsedClusLay1;
- delete[] fUsedClusLay2;
+ //
// delete arrays
- for(Int_t i=0; i<fNTracklets; i++)
- delete [] fTracklets[i];
+ for(Int_t i=0; i<fNTracklets; i++) delete [] fTracklets[i];
- for(Int_t i=0; i<fNSingleCluster; i++)
- delete [] fSClusters[i];
-
- delete [] fClustersLay1;
- delete [] fClustersLay2;
- delete [] fDetectorIndexClustersLay1;
- delete [] fDetectorIndexClustersLay2;
- delete [] fOverlapFlagClustersLay1;
- delete [] fOverlapFlagClustersLay2;
+ for(Int_t i=0; i<fNSingleCluster; i++) delete [] fSClusters[i];
+
+ //
+ for (int i=0;i<2;i++) {
+ delete[] fClustersLay[i];
+ delete[] fDetectorIndexClustersLay[i];
+ delete[] fOverlapFlagClustersLay[i];
+ delete fClArr[i];
+ for (int j=0;j<2;j++) delete fUsedClusLay[i][j];
+ }
delete [] fTracklets;
delete [] fSClusters;
+ //
+ delete[] fPartners; fPartners = 0;
+ delete[] fMinDists; fMinDists = 0;
+ delete fBlackList; fBlackList = 0;
+ //
}
//____________________________________________________________________
if (!esd) {AliError("ESDEvent is not available, use old reconstructor"); return;}
// reset counters
if (fMult) delete fMult; fMult = 0;
- fNClustersLay1 = 0;
- fNClustersLay2 = 0;
+ fNClustersLay[0] = 0;
+ fNClustersLay[1] = 0;
fNTracklets = 0;
fNSingleCluster = 0;
//
//____________________________________________________________________
void AliITSMultReconstructor::Reconstruct(TTree* clusterTree, Float_t* vtx, Float_t* /* vtxRes*/) {
//
- // RS NOTE - this is old reconstructor invocation, to be used from VertexFinder
+ // RS NOTE - this is old reconstructor invocation, to be used from VertexFinder and in analysis mode
if (fMult) delete fMult; fMult = 0;
- fNClustersLay1 = 0;
- fNClustersLay2 = 0;
+ fNClustersLay[0] = 0;
+ fNClustersLay[1] = 0;
fNTracklets = 0;
fNSingleCluster = 0;
//
if (!clusterTree) { AliError(" Invalid ITS cluster tree !\n"); return; }
//
fESDEvent = 0;
- fTreeRP = clusterTree;
+ SetTreeRP(clusterTree);
//
FindTracklets(vtx);
//
}
+
//____________________________________________________________________
-void AliITSMultReconstructor::FindTracklets(const Float_t *vtx)
+void AliITSMultReconstructor::ReconstructMix(TTree* clusterTree, TTree* clusterTreeMix, const Float_t* vtx, Float_t*)
{
+ //
+ // RS NOTE - this is old reconstructor invocation, to be used from VertexFinder and in analysis mode
+ if (fMult) delete fMult; fMult = 0;
+ fNClustersLay[0] = 0;
+ fNClustersLay[1] = 0;
+ fNTracklets = 0;
+ fNSingleCluster = 0;
+ //
+ if (!clusterTree) { AliError(" Invalid ITS cluster tree !\n"); return; }
+ if (!clusterTreeMix) { AliError(" Invalid ITS cluster tree 2nd event !\n"); return; }
+ //
+ fESDEvent = 0;
+ SetTreeRP(clusterTree);
+ SetTreeRPMix(clusterTreeMix);
+ //
+ FindTracklets(vtx);
+ //
+}
+
+
+//____________________________________________________________________
+void AliITSMultReconstructor::FindTracklets(const Float_t *vtx)
+{
// - calls LoadClusterArrays that finds the position of the clusters
// (in global coord)
+
// - convert the cluster coordinates to theta, phi (seen from the
- // interaction vertex).
+ // interaction vertex). Clusters in the inner layer can be now
+ // rotated for combinatorial studies
// - makes an array of tracklets
//
// After this method has been called, the clusters of the two layers
// Find tracklets converging to vertex
//
- LoadClusterArrays(fTreeRP);
+ LoadClusterArrays(fTreeRP,fTreeRPMix);
// flag clusters used by ESD tracks
if (fESDEvent) ProcessESDTracks();
+ fRecoDone = kTRUE;
if (!vtx) return;
- const Double_t pi = TMath::Pi();
+ InitAux();
- // dPhi shift is field dependent
- // get average magnetic field
- Float_t bz = 0;
- AliMagF* field = 0;
- if (TGeoGlobalMagField::Instance()) field = dynamic_cast<AliMagF*>(TGeoGlobalMagField::Instance()->GetField());
- if (!field)
- {
- AliError("Could not retrieve magnetic field. Assuming no field. Delta Phi shift will be deactivated in AliITSMultReconstructor.")
- }
- else
- bz = TMath::Abs(field->SolenoidField());
-
- const Double_t dPhiShift = fPhiShift / 5 * bz;
- AliDebug(1, Form("Using phi shift of %f", dPhiShift));
-
- const Double_t dPhiWindow2 = fPhiWindow * fPhiWindow;
- const Double_t dThetaWindow2 = fThetaWindow * fThetaWindow;
-
- Int_t* partners = new Int_t[fNClustersLay2];
- Float_t* minDists = new Float_t[fNClustersLay2];
- Int_t* associatedLay1 = new Int_t[fNClustersLay1];
- TArrayI** blacklist = new TArrayI*[fNClustersLay1];
-
- for (Int_t i=0; i<fNClustersLay2; i++) {
- partners[i] = -1;
- minDists[i] = 2;
- }
- for (Int_t i=0; i<fNClustersLay1; i++)
- associatedLay1[i] = 0;
- for (Int_t i=0; i<fNClustersLay1; i++)
- blacklist[i] = 0;
-
// find the tracklets
AliDebug(1,"Looking for tracklets... ");
- //###########################################################
- // Loop on layer 1 : finding theta, phi and z
- for (Int_t iC1=0; iC1<fNClustersLay1; iC1++) {
- float *clPar = GetClusterLayer1(iC1);
- Float_t x = clPar[kClTh] - vtx[0];
- Float_t y = clPar[kClPh] - vtx[1];
- Float_t z = clPar[kClZ] - vtx[2];
-
- Float_t r = TMath::Sqrt(x*x + y*y + z*z);
-
- clPar[kClTh] = TMath::ACos(z/r); // Store Theta
- clPar[kClPh] = TMath::Pi() + TMath::ATan2(-y,-x); // Store Phi
-
- if (fHistOn) {
- Float_t eta = clPar[kClTh];
- eta= TMath::Tan(eta/2.);
- eta=-TMath::Log(eta);
- fhetaClustersLay1->Fill(eta);
- fhphiClustersLay1->Fill(clPar[kClPh]);
- }
- }
-
- // Loop on layer 2 : finding theta, phi and r
- for (Int_t iC2=0; iC2<fNClustersLay2; iC2++) {
- float *clPar = GetClusterLayer2(iC2);
- Float_t x = clPar[kClTh] - vtx[0];
- Float_t y = clPar[kClPh] - vtx[1];
- Float_t z = clPar[kClZ] - vtx[2];
-
- Float_t r = TMath::Sqrt(x*x + y*y + z*z);
-
- clPar[kClTh] = TMath::ACos(z/r); // Store Theta
- clPar[kClPh] = TMath::Pi() + TMath::ATan2(-y,-x); // Store Phi
- }
-
- //###########################################################
- Int_t found = 1;
+ ClusterPos2Angles(vtx); // convert cluster position to angles wrt vtx
+ //
+ // Step1: find all tracklets allowing double assocation:
+ int found = 1;
while (found > 0) {
found = 0;
-
- // Step1: find all tracklets allowing double assocation
- // Loop on layer 1
- for (Int_t iC1=0; iC1<fNClustersLay1; iC1++) {
-
- // already used ?
- if (associatedLay1[iC1] != 0) continue;
-
- found++;
-
- // reset of variables for multiple candidates
- Int_t iC2WithBestDist = -1; // reset
- Double_t minDist = 2; // reset
- float* clPar1 = GetClusterLayer1(iC1);
-
- // Loop on layer 2
- for (Int_t iC2=0; iC2<fNClustersLay2; iC2++) {
-
- float* clPar2 = GetClusterLayer2(iC2);
-
- if (blacklist[iC1]) {
- Bool_t blacklisted = kFALSE;
- for (Int_t i=blacklist[iC1]->GetSize(); i--;) {
- if (blacklist[iC1]->At(i) == iC2) {
- blacklisted = kTRUE;
- break;
- }
- }
- if (blacklisted) continue;
- }
-
- // find the difference in angles
- Double_t dTheta = TMath::Abs(clPar2[kClTh] - clPar1[kClTh]);
- Double_t dPhi = TMath::Abs(clPar2[kClPh] - clPar1[kClPh]);
- // take into account boundary condition
- if (dPhi>pi) dPhi=2.*pi-dPhi;
-
- if (fHistOn) {
- fhClustersDPhiAll->Fill(dPhi);
- fhClustersDThetaAll->Fill(dTheta);
- fhDPhiVsDThetaAll->Fill(dTheta, dPhi);
- }
-
- dPhi -= dPhiShift;
-
- // make "elliptical" cut in Phi and Theta!
- Float_t d = dPhi*dPhi/dPhiWindow2 + dTheta*dTheta/dThetaWindow2;
-
- // look for the minimum distance: the minimum is in iC2WithBestDist
- if (d<1 && d<minDist) {
- minDist=d;
- iC2WithBestDist = iC2;
- }
- } // end of loop over clusters in layer 2
-
- if (minDist<1) { // This means that a cluster in layer 2 was found that matches with iC1
-
- if (minDists[iC2WithBestDist] > minDist) {
- Int_t oldPartner = partners[iC2WithBestDist];
- partners[iC2WithBestDist] = iC1;
- minDists[iC2WithBestDist] = minDist;
-
- // mark as assigned
- associatedLay1[iC1] = 1;
-
- if (oldPartner != -1) {
- // redo partner search for cluster in L0 (oldPartner), putting this one (iC2WithBestDist) on its blacklist
- if (blacklist[oldPartner] == 0) {
- blacklist[oldPartner] = new TArrayI(1);
- } else blacklist[oldPartner]->Set(blacklist[oldPartner]->GetSize()+1);
-
- blacklist[oldPartner]->AddAt(iC2WithBestDist, blacklist[oldPartner]->GetSize()-1);
-
- // mark as free
- associatedLay1[oldPartner] = 0;
- }
- } else {
- // try again to find a cluster without considering iC2WithBestDist
- if (blacklist[iC1] == 0) {
- blacklist[iC1] = new TArrayI(1);
- }
- else
- blacklist[iC1]->Set(blacklist[iC1]->GetSize()+1);
-
- blacklist[iC1]->AddAt(iC2WithBestDist, blacklist[iC1]->GetSize()-1);
- }
-
- } else // cluster has no partner; remove
- associatedLay1[iC1] = 2;
- } // end of loop over clusters in layer 1
- }
-
- // Step2: store tracklets; remove used clusters
- for (Int_t iC2=0; iC2<fNClustersLay2; iC2++) {
-
- if (partners[iC2] == -1) continue;
-
- if (fRemoveClustersFromOverlaps) FlagClustersInOverlapRegions (partners[iC2],iC2);
-
-
- if (fOverlapFlagClustersLay1[partners[iC2]] || fOverlapFlagClustersLay2[iC2]) continue;
-
- float* clPar2 = GetClusterLayer2(iC2);
- float* clPar1 = GetClusterLayer1(partners[iC2]);
-
- Float_t* tracklet = fTracklets[fNTracklets] = new Float_t[kTrNPar]; // RS Add also the cluster id's
-
- // use the theta from the clusters in the first layer
- tracklet[kTrTheta] = clPar1[kClTh];
- // use the phi from the clusters in the first layer
- tracklet[kTrPhi] = clPar1[kClPh];
- // store the difference between phi1 and phi2
- tracklet[kTrDPhi] = clPar1[kClPh] - clPar2[kClPh];
-
- // define dphi in the range [0,pi] with proper sign (track charge correlated)
- if (tracklet[kTrDPhi] > TMath::Pi()) tracklet[kTrDPhi] = tracklet[kTrDPhi]-2.*TMath::Pi();
- if (tracklet[kTrDPhi] < -TMath::Pi()) tracklet[kTrDPhi] = tracklet[kTrDPhi]+2.*TMath::Pi();
-
- // store the difference between theta1 and theta2
- tracklet[kTrDTheta] = clPar1[kClTh] - clPar2[kClTh];
-
- if (fHistOn) {
- fhClustersDPhiAcc->Fill(tracklet[kTrDPhi]);
- fhClustersDThetaAcc->Fill(tracklet[kTrDTheta]);
- fhDPhiVsDThetaAcc->Fill(tracklet[kTrDTheta],tracklet[kTrDPhi]);
- }
-
- // find label
- // if equal label in both clusters found this label is assigned
- // if no equal label can be found the first labels of the L1 AND L2 cluster are assigned
- Int_t label1 = 0;
- Int_t label2 = 0;
- while (label2 < 3) {
- if ((Int_t) clPar1[kClMC0+label1] != -2 && (Int_t) clPar1[kClMC0+label1] == (Int_t) clPar2[kClMC0+label2])
- break;
- label1++;
- if (label1 == 3) {
- label1 = 0;
- label2++;
- }
- }
- if (label2 < 3) {
- AliDebug(AliLog::kDebug, Form("Found label %d == %d for tracklet candidate %d\n", (Int_t) clPar1[kClMC0+label1], (Int_t) clPar1[kClMC0+label2], fNTracklets));
- tracklet[kTrLab1] = clPar1[kClMC0+label1];
- tracklet[kTrLab2] = clPar2[kClMC0+label2];
- } else {
- AliDebug(AliLog::kDebug, Form("Did not find label %d %d %d %d %d %d for tracklet candidate %d\n", (Int_t) clPar1[kClMC0], (Int_t) clPar1[kClMC1], (Int_t) clPar1[kClMC2], (Int_t) clPar2[kClMC0], (Int_t) clPar2[kClMC1], (Int_t) clPar2[kClMC2], fNTracklets));
- tracklet[kTrLab1] = clPar1[kClMC0];
- tracklet[kTrLab2] = clPar2[kClMC0];
- }
-
- if (fHistOn) {
- Float_t eta = tracklet[kTrTheta];
- eta= TMath::Tan(eta/2.);
- eta=-TMath::Log(eta);
- fhetaTracklets->Fill(eta);
- fhphiTracklets->Fill(tracklet[kTrPhi]);
- }
- //
- tracklet[kClID1] = partners[iC2];
- tracklet[kClID2] = iC2;
- //
- AliDebug(1,Form(" Adding tracklet candidate %d ", fNTracklets));
- AliDebug(1,Form(" Cl. %d of Layer 1 and %d of Layer 2", partners[iC2], iC2));
- fNTracklets++;
-
- associatedLay1[partners[iC2]] = 1;
- }
-
- // Delete the following else if you do not want to save Clusters!
- // store the cluster
- for (Int_t iC1=0; iC1<fNClustersLay1; iC1++) {
-
- float* clPar1 = GetClusterLayer1(iC1);
-
- if (associatedLay1[iC1]==2||associatedLay1[iC1]==0) {
- fSClusters[fNSingleCluster] = new Float_t[kClNPar];
- fSClusters[fNSingleCluster][kSCTh] = clPar1[kClTh];
- fSClusters[fNSingleCluster][kSCPh] = clPar1[kClPh];
- fSClusters[fNSingleCluster][kSCLab] = clPar1[kClMC0];
- fSClusters[fNSingleCluster][kSCID] = iC1;
- AliDebug(1,Form(" Adding a single cluster %d (cluster %d of layer 1)",
- fNSingleCluster, iC1));
- fNSingleCluster++;
- }
+ for (Int_t iC1=0; iC1<fNClustersLay[0]; iC1++) found += AssociateClusterOfL1(iC1);
}
-
- delete[] partners;
- delete[] minDists;
-
- for (Int_t i=0; i<fNClustersLay1; i++)
- if (blacklist[i])
- delete blacklist[i];
- delete[] blacklist;
-
+ //
+ // Step2: store tracklets; remove used clusters
+ for (Int_t iC2=0; iC2<fNClustersLay[1]; iC2++) StoreTrackletForL2Cluster(iC2);
+ //
+ // store unused single clusters of L1
+ StoreL1Singles();
+ //
AliDebug(1,Form("%d tracklets found", fNTracklets));
}
}
//
fMult = new AliMultiplicity(fNTracklets,fNSingleCluster,fNFiredChips[0],fNFiredChips[1],fastOrFiredMap);
+ fMult->SetMultTrackRefs(kTRUE);
+ // store some details of reco:
+ fMult->SetScaleDThetaBySin2T(fScaleDTBySin2T);
+ fMult->SetDPhiWindow2(fDPhiWindow2);
+ fMult->SetDThetaWindow2(fDThetaWindow2);
+ fMult->SetDPhiShift(fDPhiShift);
+ fMult->SetNStdDev(fNStdDev);
+ //
fMult->SetFiredChipMap(firedChipMap);
AliITSRecPointContainer* rcont = AliITSRecPointContainer::Instance();
fMult->SetITSClusters(0,rcont->GetNClustersInLayer(1,fTreeRP));
for(Int_t kk=2;kk<=6;kk++) fMult->SetITSClusters(kk-1,rcont->GetNClustersInLayerFast(kk));
//
+ UInt_t shared[100];
+ AliRefArray *refs[2][2] = {{0,0},{0,0}};
+ for (int il=2;il--;)
+ for (int it=2;it--;) // tracklet_clusters->track references to stor
+ if (fStoreRefs[il][it]) refs[il][it] = new AliRefArray(fNTracklets,0);
+ //
for (int i=fNTracklets;i--;) {
float* tlInfo = fTracklets[i];
- fMult->SetTrackletData(i,tlInfo, fUsedClusLay1[int(tlInfo[kClID1])],fUsedClusLay2[int(tlInfo[kClID2])]);
+ fMult->SetTrackletData(i,tlInfo);
+ for (int itp=0;itp<2;itp++) {
+ for (int ilr=0;ilr<2;ilr++) {
+ if (!fStoreRefs[ilr][itp]) continue; // nothing to store
+ int clID = int(tlInfo[ilr ? kClID2:kClID1]);
+ int nref = fUsedClusLay[ilr][itp]->GetReferences(clID,shared,100);
+ if (!nref) continue;
+ else if (nref==1) refs[ilr][itp]->AddReference(i,shared[0]);
+ else refs[ilr][itp]->AddReferences(i,shared,nref);
+ }
+ }
}
- //
+ fMult->AttachTracklet2TrackRefs(refs[0][0],refs[0][1],refs[1][0],refs[1][1]);
+ //
+ AliRefArray *refsc[2] = {0,0};
+ for (int it=2;it--;) if (fStoreRefs[0][it]) refsc[it] = new AliRefArray(fNClustersLay[0]);
for (int i=fNSingleCluster;i--;) {
float* clInfo = fSClusters[i];
- fMult->SetSingleClusterData(i,clInfo,fUsedClusLay1[int(clInfo[kSCID])]);
+ fMult->SetSingleClusterData(i,clInfo);
+ int clID = int(clInfo[kSCID]);
+ for (int itp=0;itp<2;itp++) {
+ if (!fStoreRefs[0][itp]) continue;
+ int nref = fUsedClusLay[0][itp]->GetReferences(clID,shared,100);
+ if (!nref) continue;
+ else if (nref==1) refsc[itp]->AddReference(i,shared[0]);
+ else refsc[itp]->AddReferences(i,shared,nref);
+ }
}
+ fMult->AttachCluster2TrackRefs(refsc[0],refsc[1]);
fMult->CompactBits();
//
}
//____________________________________________________________________
-void AliITSMultReconstructor::LoadClusterArrays(TTree* itsClusterTree)
+void AliITSMultReconstructor::LoadClusterArrays(TTree* tree, TTree* treeMix)
+{
+ // load cluster info and prepare tracklets arrays
+ //
+ if (AreClustersLoaded()) {AliInfo("Clusters are already loaded"); return;}
+ LoadClusterArrays(tree,0);
+ LoadClusterArrays(treeMix ? treeMix:tree,1);
+ int nmaxT = TMath::Min(fNClustersLay[0], fNClustersLay[1]);
+ if (fTracklets) delete[] fTracklets;
+ fTracklets = new Float_t*[nmaxT];
+ memset(fTracklets,0,nmaxT*sizeof(Float_t*));
+ //
+ if (fSClusters) delete[] fSClusters;
+ fSClusters = new Float_t*[fNClustersLay[0]];
+ memset(fSClusters,0,fNClustersLay[0]*sizeof(Float_t*));
+ //
+ AliDebug(1,Form("(clusters in layer 1 : %d, layer 2: %d)",fNClustersLay[0],fNClustersLay[1]));
+ AliDebug(1,Form("(cluster-fired chips in layer 1 : %d, layer 2: %d)",fNFiredChips[0],fNFiredChips[1]));
+ SetClustersLoaded();
+}
+
+//____________________________________________________________________
+void AliITSMultReconstructor::LoadClusterArrays(TTree* itsClusterTree, int il)
{
// This method
- // - gets the clusters from the cluster tree
+ // - gets the clusters from the cluster tree for layer il
// - convert them into global coordinates
// - store them in the internal arrays
// - count the number of cluster-fired chips
// RS: This method was strongly modified wrt original. In order to have the same numbering
// of clusters as in the ITS reco I had to introduce sorting in Z
// Also note that now the clusters data are stored not in float[6] attached to float**, but in 1-D array
-
- AliDebug(1,"Loading clusters and cluster-fired chips ...");
-
- fNClustersLay1 = 0;
- fNClustersLay2 = 0;
- fNFiredChips[0] = 0;
- fNFiredChips[1] = 0;
-
- AliITSsegmentationSPD seg;
-
- AliITSRecPointContainer* rpcont=AliITSRecPointContainer::Instance();
- TClonesArray* itsClusters=rpcont->FetchClusters(0,itsClusterTree);
- if(!rpcont->IsSPDActive()){
- AliWarning("No SPD rec points found, multiplicity not calculated");
- return;
- }
+ AliDebug(1,Form("Loading clusters and cluster-fired chips for layer %d",il));
+ //
+ fNClustersLay[il] = 0;
+ fNFiredChips[il] = 0;
+ for (int i=2;i--;) fStoreRefs[il][i] = kFALSE;
+ //
+ AliITSRecPointContainer* rpcont = 0;
+ static TClonesArray statITSrec("AliITSRecPoint");
+ static TObjArray clArr(100);
+ TBranch* branch = 0;
+ TClonesArray* itsClusters = 0;
+ //
+ if (!fCreateClustersCopy) {
+ rpcont=AliITSRecPointContainer::Instance();
+ itsClusters = rpcont->FetchClusters(0,itsClusterTree);
+ if(!rpcont->IsSPDActive()){
+ AliWarning("No SPD rec points found, multiplicity not calculated");
+ return;
+ }
+ }
+ else {
+ itsClusters = &statITSrec;
+ branch = itsClusterTree->GetBranch("ITSRecPoints");
+ branch->SetAddress(&itsClusters);
+ if (!fClArr[il]) fClArr[il] = new TClonesArray("AliITSRecPoint",100);
+ }
//
// count clusters
// loop over the SPD subdetectors
- TObjArray clArr(100);
- for (int il=0;il<2;il++) {
- int nclLayer = 0;
- int detMin = AliITSgeomTGeo::GetModuleIndex(il+1,1,1);
- int detMax = AliITSgeomTGeo::GetModuleIndex(il+2,1,1);
- for (int idt=detMin;idt<detMax;idt++) {
- itsClusters=rpcont->UncheckedGetClusters(idt);
- int nClusters = itsClusters->GetEntriesFast();
- if (!nClusters) continue;
- Int_t nClustersInChip[5] = {0,0,0,0,0};
- while(nClusters--) {
- AliITSRecPoint* cluster = (AliITSRecPoint*)itsClusters->UncheckedAt(nClusters);
- if (!cluster) continue;
- clArr.AddAtAndExpand(cluster,nclLayer++);
- nClustersInChip[ seg.GetChipFromLocal(0,cluster->GetDetLocalZ()) ]++;
- }
- for(Int_t ifChip=5;ifChip--;) if (nClustersInChip[ifChip]) fNFiredChips[il]++;
- }
- // sort the clusters in Z (to have the same numbering as in ITS reco
- Float_t *z = new Float_t[nclLayer];
- Int_t * index = new Int_t[nclLayer];
- for (int ic=0;ic<nclLayer;ic++) z[ic] = ((AliITSRecPoint*)clArr[ic])->GetZ();
- TMath::Sort(nclLayer,z,index,kFALSE);
- Float_t* clustersLay = new Float_t[nclLayer*kClNPar];
- Int_t* detectorIndexClustersLay = new Int_t[nclLayer];
- Bool_t* overlapFlagClustersLay = new Bool_t[nclLayer];
- UInt_t* usedClusLay = new UInt_t[nclLayer];
- //
- for (int ic=0;ic<nclLayer;ic++) {
- AliITSRecPoint* cluster = (AliITSRecPoint*)clArr[index[ic]];
- float* clPar = &clustersLay[ic*kClNPar];
- //
- cluster->GetGlobalXYZ( clPar );
- detectorIndexClustersLay[ic] = cluster->GetDetectorIndex();
- overlapFlagClustersLay[ic] = kFALSE;
- usedClusLay[ic] = 0;
- for (Int_t i=3;i--;) clPar[kClMC0+i] = cluster->GetLabel(i);
- }
- clArr.Clear();
- delete[] z;
- delete[] index;
- //
- if (il==0) {
- fClustersLay1 = clustersLay;
- fOverlapFlagClustersLay1 = overlapFlagClustersLay;
- fDetectorIndexClustersLay1 = detectorIndexClustersLay;
- fUsedClusLay1 = usedClusLay;
- fNClustersLay1 = nclLayer;
- }
- else {
- fClustersLay2 = clustersLay;
- fOverlapFlagClustersLay2 = overlapFlagClustersLay;
- fDetectorIndexClustersLay2 = detectorIndexClustersLay;
- fUsedClusLay2 = usedClusLay;
- fNClustersLay2 = nclLayer;
+ int nclLayer = 0;
+ int detMin = TMath::Max(0,AliITSgeomTGeo::GetModuleIndex(il+1,1,1));
+ int detMax = AliITSgeomTGeo::GetModuleIndex(il+2,1,1);
+ for (int idt=detMin;idt<detMax;idt++) {
+ if (!fCreateClustersCopy) itsClusters = rpcont->UncheckedGetClusters(idt);
+ else branch->GetEvent(idt);
+ int nClusters = itsClusters->GetEntriesFast();
+ if (!nClusters) continue;
+ Int_t nClustersInChip[5] = {0,0,0,0,0};
+ while(nClusters--) {
+ AliITSRecPoint* cluster = (AliITSRecPoint*)itsClusters->UncheckedAt(nClusters);
+ if (!cluster) continue;
+ if (fCreateClustersCopy) cluster = new ((*fClArr[il])[nclLayer]) AliITSRecPoint(*cluster);
+ clArr.AddAtAndExpand(cluster,nclLayer++);
+ Int_t chipNo = fSPDSeg.GetChipFromLocal(0,cluster->GetDetLocalZ());
+ if(chipNo>=0)nClustersInChip[ chipNo ]++;
}
+ for(Int_t ifChip=5;ifChip--;) if (nClustersInChip[ifChip]) fNFiredChips[il]++;
}
+ // sort the clusters in Z (to have the same numbering as in ITS reco
+ Float_t *z = new Float_t[nclLayer];
+ Int_t *index = new Int_t[nclLayer];
+ for (int ic=0;ic<nclLayer;ic++) z[ic] = ((AliITSRecPoint*)clArr[ic])->GetZ();
+ TMath::Sort(nclLayer,z,index,kFALSE);
+ Float_t* clustersLay = new Float_t[nclLayer*kClNPar];
+ Int_t* detectorIndexClustersLay = new Int_t[nclLayer];
+ Bool_t* overlapFlagClustersLay = new Bool_t[nclLayer];
//
- // no double association allowed
- int nmaxT = TMath::Min(fNClustersLay1, fNClustersLay2);
- fTracklets = new Float_t*[nmaxT];
- fSClusters = new Float_t*[fNClustersLay1];
- for (Int_t i=nmaxT;i--;) fTracklets[i] = 0;
+ for (int ic=0;ic<nclLayer;ic++) {
+ AliITSRecPoint* cluster = (AliITSRecPoint*)clArr[index[ic]];
+ float* clPar = &clustersLay[ic*kClNPar];
+ //
+ cluster->GetGlobalXYZ( clPar );
+ detectorIndexClustersLay[ic] = cluster->GetDetectorIndex();
+ overlapFlagClustersLay[ic] = kFALSE;
+ for (Int_t i=3;i--;) clPar[kClMC0+i] = cluster->GetLabel(i);
+ }
+ clArr.Clear();
+ delete[] z;
+ delete[] index;
+ //
+ if (fOverlapFlagClustersLay[il]) delete[] fOverlapFlagClustersLay[il];
+ fOverlapFlagClustersLay[il] = overlapFlagClustersLay;
+ //
+ if (fDetectorIndexClustersLay[il]) delete[] fDetectorIndexClustersLay[il];
+ fDetectorIndexClustersLay[il] = detectorIndexClustersLay;
+ //
+ for (int it=0;it<2;it++) {
+ if (fUsedClusLay[il][it]) delete fUsedClusLay[il][it];
+ fUsedClusLay[il][it] = new AliRefArray(nclLayer);
+ }
+ //
+ if (fClustersLay[il]) delete[] fClustersLay[il];
+ fClustersLay[il] = clustersLay;
+ fNClustersLay[il] = nclLayer;
//
- AliDebug(1,Form("(clusters in layer 1 : %d, layer 2: %d)",fNClustersLay1,fNClustersLay2));
- AliDebug(1,Form("(cluster-fired chips in layer 1 : %d, layer 2: %d)",fNFiredChips[0],fNFiredChips[1]));
}
+
//____________________________________________________________________
-void
-AliITSMultReconstructor::LoadClusterFiredChips(TTree* itsClusterTree) {
+void AliITSMultReconstructor::LoadClusterFiredChips(TTree* itsClusterTree) {
// This method
// - gets the clusters from the cluster tree
// - counts the number of (cluster)fired chips
fNFiredChips[0] = 0;
fNFiredChips[1] = 0;
- AliITSsegmentationSPD seg;
AliITSRecPointContainer* rpcont=AliITSRecPointContainer::Instance();
- TClonesArray* itsClusters=rpcont->FetchClusters(0,itsClusterTree);
+ TClonesArray* itsClusters=NULL;
+ rpcont->FetchClusters(0,itsClusterTree);
if(!rpcont->IsSPDActive()){
AliWarning("No SPD rec points found, multiplicity not calculated");
return;
// find the chip for the current cluster
Float_t locz = cluster->GetDetLocalZ();
- Int_t iChip = seg.GetChipFromLocal(0,locz);
- nClustersInChip[iChip]++;
+ Int_t iChip = fSPDSeg.GetChipFromLocal(0,locz);
+ if (iChip>=0) nClustersInChip[iChip]++;
}// end of cluster loop
}
//____________________________________________________________________
-void
-AliITSMultReconstructor::FlagClustersInOverlapRegions (Int_t iC1, Int_t iC2WithBestDist) {
-
+void AliITSMultReconstructor::FlagClustersInOverlapRegions (Int_t iC1, Int_t iC2WithBestDist)
+{
+ // Flags clusters in the overlapping regions
Float_t distClSameMod=0.;
Float_t distClSameModMin=0.;
Int_t iClOverlap =0;
Float_t* clPar1 = GetClusterLayer1(iC1);
Float_t* clPar2B = GetClusterLayer2(iC2WithBestDist);
// Loop on inner layer clusters
- for (Int_t iiC1=0; iiC1<fNClustersLay1; iiC1++) {
- if (!fOverlapFlagClustersLay1[iiC1]) {
+ for (Int_t iiC1=0; iiC1<fNClustersLay[0]; iiC1++) {
+ if (!fOverlapFlagClustersLay[0][iiC1]) {
// only for adjacent modules
- if ((TMath::Abs(fDetectorIndexClustersLay1[iC1]-fDetectorIndexClustersLay1[iiC1])==4)||
- (TMath::Abs(fDetectorIndexClustersLay1[iC1]-fDetectorIndexClustersLay1[iiC1])==76)) {
+ if ((TMath::Abs(fDetectorIndexClustersLay[0][iC1]-fDetectorIndexClustersLay[0][iiC1])==4)||
+ (TMath::Abs(fDetectorIndexClustersLay[0][iC1]-fDetectorIndexClustersLay[0][iiC1])==76)) {
Float_t *clPar11 = GetClusterLayer1(iiC1);
Float_t dePhi=TMath::Abs(clPar11[kClPh]-clPar1[kClPh]);
if (dePhi>TMath::Pi()) dePhi=2.*TMath::Pi()-dePhi;
deZproj=TMath::Abs(zproj1-zproj2);
distClSameMod = TMath::Sqrt(TMath::Power(deZproj/fZetaOverlapCut,2)+TMath::Power(dePhi/fPhiOverlapCut,2));
- if (distClSameMod<=1.) fOverlapFlagClustersLay1[iiC1]=kTRUE;
+ if (distClSameMod<=1.) fOverlapFlagClustersLay[0][iiC1]=kTRUE;
// if (distClSameMod<=1.) {
// if (distClSameModMin==0. || distClSameMod<distClSameModMin) {
}
} // end Loop on inner layer clusters
-// if (distClSameModMin!=0.) fOverlapFlagClustersLay1[iClOverlap]=kTRUE;
+// if (distClSameModMin!=0.) fOverlapFlagClustersLay[0][iClOverlap]=kTRUE;
distClSameMod=0.;
distClSameModMin=0.;
iClOverlap =0;
// Loop on outer layer clusters
- for (Int_t iiC2=0; iiC2<fNClustersLay2; iiC2++) {
- if (!fOverlapFlagClustersLay2[iiC2]) {
+ for (Int_t iiC2=0; iiC2<fNClustersLay[1]; iiC2++) {
+ if (!fOverlapFlagClustersLay[1][iiC2]) {
// only for adjacent modules
Float_t *clPar2 = GetClusterLayer2(iiC2);
- if ((TMath::Abs(fDetectorIndexClustersLay2[iC2WithBestDist]-fDetectorIndexClustersLay2[iiC2])==4) ||
- (TMath::Abs(fDetectorIndexClustersLay2[iC2WithBestDist]-fDetectorIndexClustersLay2[iiC2])==156)) {
+ if ((TMath::Abs(fDetectorIndexClustersLay[1][iC2WithBestDist]-fDetectorIndexClustersLay[1][iiC2])==4) ||
+ (TMath::Abs(fDetectorIndexClustersLay[1][iC2WithBestDist]-fDetectorIndexClustersLay[1][iiC2])==156)) {
Float_t dePhi=TMath::Abs(clPar2[kClPh]-clPar2B[kClPh]);
if (dePhi>TMath::Pi()) dePhi=2.*TMath::Pi()-dePhi;
deZproj=TMath::Abs(zproj1-zproj2);
distClSameMod = TMath::Sqrt(TMath::Power(deZproj/fZetaOverlapCut,2)+TMath::Power(dePhi/fPhiOverlapCut,2));
- if (distClSameMod<=1.) fOverlapFlagClustersLay2[iiC2]=kTRUE;
+ if (distClSameMod<=1.) fOverlapFlagClustersLay[1][iiC2]=kTRUE;
// if (distClSameMod<=1.) {
// if (distClSameModMin==0. || distClSameMod<distClSameModMin) {
}
} // end Loop on outer layer clusters
-// if (distClSameModMin!=0.) fOverlapFlagClustersLay2[iClOverlap]=kTRUE;
+// if (distClSameModMin!=0.) fOverlapFlagClustersLay[1][iClOverlap]=kTRUE;
+
+}
+
+//____________________________________________________________________
+void AliITSMultReconstructor::InitAux()
+{
+ // init arrays/parameters for tracklet reconstruction
+
+ // dPhi shift is field dependent, get average magnetic field
+ Float_t bz = 0;
+ AliMagF* field = 0;
+ if (TGeoGlobalMagField::Instance()) field = dynamic_cast<AliMagF*>(TGeoGlobalMagField::Instance()->GetField());
+ if (!field) {
+ AliError("Could not retrieve magnetic field. Assuming no field. Delta Phi shift will be deactivated in AliITSMultReconstructor.");
+ }
+ else bz = TMath::Abs(field->SolenoidField());
+ fDPhiShift = fPhiShift / 5 * bz;
+ AliDebug(1, Form("Using phi shift of %f", fDPhiShift));
+ //
+ if (fPartners) delete[] fPartners; fPartners = new Int_t[fNClustersLay[1]];
+ if (fMinDists) delete[] fMinDists; fMinDists = new Float_t[fNClustersLay[1]];
+ if (fAssociatedLay1) delete[] fAssociatedLay1; fAssociatedLay1 = new Int_t[fNClustersLay[0]];
+ //
+ if (fBlackList) delete fBlackList; fBlackList = new AliRefArray(fNClustersLay[0]);
+ //
+ // Printf("Vertex in find tracklets...%f %f %f",vtx[0],vtx[1],vtx[2]);
+ for (Int_t i=0; i<fNClustersLay[1]; i++) {
+ fPartners[i] = -1;
+ fMinDists[i] = 2*fNStdDev;
+ }
+ memset(fAssociatedLay1,0,fNClustersLay[0]*sizeof(Int_t));
+ //
+}
+
+//____________________________________________________________________
+void AliITSMultReconstructor::ClusterPos2Angles(const Float_t *vtx)
+{
+ // convert cluster coordinates to angles wrt vertex
+ for (int ilr=0;ilr<2;ilr++) {
+ for (Int_t iC=0; iC<fNClustersLay[ilr]; iC++) {
+ float* clPar = GetClusterOfLayer(ilr,iC);
+ CalcThetaPhi(clPar[kClTh]-vtx[0],clPar[kClPh]-vtx[1],clPar[kClZ]-vtx[2],clPar[kClTh],clPar[kClPh]);
+ if (ilr==0) {
+ clPar[kClPh] = clPar[kClPh] + fPhiRotationAngle; // rotation of inner layer for comb studies
+ if (fHistOn) {
+ Float_t eta = clPar[kClTh];
+ eta= TMath::Tan(eta/2.);
+ eta=-TMath::Log(eta);
+ fhetaClustersLay1->Fill(eta);
+ fhphiClustersLay1->Fill(clPar[kClPh]);
+ }
+ }
+ }
+ }
+ //
+}
+
+//____________________________________________________________________
+Int_t AliITSMultReconstructor::AssociateClusterOfL1(Int_t iC1)
+{
+ // search association of cluster iC1 of L1 with all clusters of L2
+ if (fAssociatedLay1[iC1] != 0) return 0;
+ Int_t iC2WithBestDist = -1; // reset
+ Double_t minDist = 2*fNStdDev; // reset
+ float* clPar1 = GetClusterLayer1(iC1);
+ for (Int_t iC2=0; iC2<fNClustersLay[1]; iC2++) {
+ //
+ if (fBlackList->IsReferred(iC1,iC2)) continue;
+ float* clPar2 = GetClusterLayer2(iC2);
+ //
+ // find the difference in angles
+ Double_t dTheta = TMath::Abs(clPar2[kClTh] - clPar1[kClTh]);
+ Double_t dPhi = TMath::Abs(clPar2[kClPh] - clPar1[kClPh]);
+ // Printf("detheta %f dephi %f", dTheta,dPhi);
+ //
+ if (dPhi>TMath::Pi()) dPhi=2.*TMath::Pi()-dPhi; // take into account boundary condition
+ //
+ if (fHistOn) {
+ fhClustersDPhiAll->Fill(dPhi);
+ fhClustersDThetaAll->Fill(dTheta);
+ fhDPhiVsDThetaAll->Fill(dTheta, dPhi);
+ }
+ Float_t d = CalcDist(dPhi,dTheta,clPar1[kClTh]); // make "elliptical" cut in Phi and Theta!
+ // look for the minimum distance: the minimum is in iC2WithBestDist
+ if (d<fNStdDev && d<minDist) { minDist=d; iC2WithBestDist = iC2; }
+ }
+ //
+ if (minDist<fNStdDev) { // This means that a cluster in layer 2 was found that matches with iC1
+ //
+ if (fMinDists[iC2WithBestDist] > minDist) {
+ Int_t oldPartner = fPartners[iC2WithBestDist];
+ fPartners[iC2WithBestDist] = iC1;
+ fMinDists[iC2WithBestDist] = minDist;
+ //
+ fAssociatedLay1[iC1] = 1; // mark as assigned
+ //
+ if (oldPartner != -1) {
+ // redo partner search for cluster in L0 (oldPartner), putting this one (iC2WithBestDist) on its fBlackList
+ fBlackList->AddReference(oldPartner,iC2WithBestDist);
+ fAssociatedLay1[oldPartner] = 0; // mark as free
+ }
+ } else {
+ // try again to find a cluster without considering iC2WithBestDist
+ fBlackList->AddReference(iC1,iC2WithBestDist);
+ }
+ //
+ }
+ else fAssociatedLay1[iC1] = 2;// cluster has no partner; remove
+ //
+ return 1;
+}
+
+//____________________________________________________________________
+Int_t AliITSMultReconstructor::StoreTrackletForL2Cluster(Int_t iC2)
+{
+ // build tracklet for cluster iC2 of layer 2
+ if (fPartners[iC2] == -1) return 0;
+ if (fRemoveClustersFromOverlaps) FlagClustersInOverlapRegions (fPartners[iC2],iC2);
+ // Printf("saving tracklets");
+ if (fOverlapFlagClustersLay[0][fPartners[iC2]] || fOverlapFlagClustersLay[1][iC2]) return 0;
+ float* clPar2 = GetClusterLayer2(iC2);
+ float* clPar1 = GetClusterLayer1(fPartners[iC2]);
+ //
+ Float_t* tracklet = fTracklets[fNTracklets] = new Float_t[kTrNPar]; // RS Add also the cluster id's
+ //
+ tracklet[kTrTheta] = clPar1[kClTh]; // use the theta from the clusters in the first layer
+ tracklet[kTrPhi] = clPar1[kClPh]; // use the phi from the clusters in the first layer
+ tracklet[kTrDPhi] = clPar1[kClPh] - clPar2[kClPh]; // store the difference between phi1 and phi2
+ //
+ // define dphi in the range [0,pi] with proper sign (track charge correlated)
+ if (tracklet[kTrDPhi] > TMath::Pi()) tracklet[kTrDPhi] = tracklet[kTrDPhi]-2.*TMath::Pi();
+ if (tracklet[kTrDPhi] < -TMath::Pi()) tracklet[kTrDPhi] = tracklet[kTrDPhi]+2.*TMath::Pi();
+ //
+ tracklet[kTrDTheta] = clPar1[kClTh] - clPar2[kClTh]; // store the theta1-theta2
+ //
+ if (fHistOn) {
+ fhClustersDPhiAcc->Fill(tracklet[kTrDPhi]);
+ fhClustersDThetaAcc->Fill(tracklet[kTrDTheta]);
+ fhDPhiVsDThetaAcc->Fill(tracklet[kTrDTheta],tracklet[kTrDPhi]);
+ }
+ //
+ // find label
+ // if equal label in both clusters found this label is assigned
+ // if no equal label can be found the first labels of the L1 AND L2 cluster are assigned
+ Int_t label1=0,label2=0;
+ while (label2 < 3) {
+ if ( int(clPar1[kClMC0+label1])!=-2 && int(clPar1[kClMC0+label1])==int(clPar2[kClMC0+label2])) break;
+ if (++label1 == 3) { label1 = 0; label2++; }
+ }
+ if (label2 < 3) {
+ AliDebug(AliLog::kDebug, Form("Found label %d == %d for tracklet candidate %d\n",
+ (Int_t) clPar1[kClMC0+label1], (Int_t) clPar1[kClMC0+label2], fNTracklets));
+ tracklet[kTrLab1] = tracklet[kTrLab2] = clPar1[kClMC0+label1];
+ } else {
+ AliDebug(AliLog::kDebug, Form("Did not find label %d %d %d %d %d %d for tracklet candidate %d\n",
+ (Int_t) clPar1[kClMC0], (Int_t) clPar1[kClMC1], (Int_t) clPar1[kClMC2],
+ (Int_t) clPar2[kClMC0], (Int_t) clPar2[kClMC1], (Int_t) clPar2[kClMC2], fNTracklets));
+ tracklet[kTrLab1] = clPar1[kClMC0];
+ tracklet[kTrLab2] = clPar2[kClMC0];
+ }
+ //
+ if (fHistOn) {
+ Float_t eta = tracklet[kTrTheta];
+ eta= TMath::Tan(eta/2.);
+ eta=-TMath::Log(eta);
+ fhetaTracklets->Fill(eta);
+ fhphiTracklets->Fill(tracklet[kTrPhi]);
+ }
+ //
+ tracklet[kClID1] = fPartners[iC2];
+ tracklet[kClID2] = iC2;
+ //
+ // Printf("Adding tracklet candidate");
+ AliDebug(1,Form(" Adding tracklet candidate %d ", fNTracklets));
+ AliDebug(1,Form(" Cl. %d of Layer 1 and %d of Layer 2", fPartners[iC2], iC2));
+ fNTracklets++;
+ fAssociatedLay1[fPartners[iC2]] = 1;
+ //
+ return 1;
+}
+//____________________________________________________________________
+void AliITSMultReconstructor::StoreL1Singles()
+{
+ // Printf("saving single clusters...");
+ for (Int_t iC1=0; iC1<fNClustersLay[0]; iC1++) {
+ float* clPar1 = GetClusterLayer1(iC1);
+ if (fAssociatedLay1[iC1]==2||fAssociatedLay1[iC1]==0) {
+ fSClusters[fNSingleCluster] = new Float_t[kClNPar];
+ fSClusters[fNSingleCluster][kSCTh] = clPar1[kClTh];
+ fSClusters[fNSingleCluster][kSCPh] = clPar1[kClPh];
+ fSClusters[fNSingleCluster][kSCLab] = clPar1[kClMC0];
+ fSClusters[fNSingleCluster][kSCID] = iC1;
+ AliDebug(1,Form(" Adding a single cluster %d (cluster %d of layer 1)",
+ fNSingleCluster, iC1));
+ fNSingleCluster++;
+ }
+ }
+ //
}
//____________________________________________________________________
{
// RS: flag the SPD clusters of the track if it is useful for the multiplicity estimation
//
- const UShort_t kMaxTrID = 0xffff - 1; // max possible track id
- if (id>kMaxTrID) return;
const AliESDtrack* track = fESDEvent->GetTrack(id);
Int_t idx[12];
if ( track->GetITSclusters(idx)<3 ) return; // at least 3 clusters must be used in the fit
- UInt_t *uClus[2] = {fUsedClusLay1,fUsedClusLay2};
- //
- UInt_t mark = id+1;
- if (track->IsOn(AliESDtrack::kITSpureSA)) mark <<= 16;
- //
- for (int i=AliESDfriendTrack::kMaxITScluster;i--;) {
- // note: i>=6 is for extra clusters
+ Int_t itsType = track->IsOn(AliESDtrack::kITSpureSA) ? 1:0;
+
+ for (int i=6/*AliESDfriendTrack::kMaxITScluster*/;i--;) { // ignore extras: note: i>=6 is for extra clusters
if (idx[i]<0) continue;
int layID= (idx[i] & 0xf0000000) >> 28;
if (layID>1) continue; // SPD only
int clID = (idx[i] & 0x0fffffff);
- uClus[layID][clID] |= mark;
+ fUsedClusLay[layID][itsType]->AddReference(clID,id);
+ fStoreRefs[layID][itsType] = kTRUE;
}
//
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff