//
// ------------------------------------------------------------------------
// author: A. Pulvirenti (alberto.pulvirenti@ct.infn.it)
+// Revised by Rongrong 2010-05-31 (rongrong.ma@cern.ch)
//=========================================================================
#include <Riostream.h>
#include <TGeoMatrix.h>
#include "AliLog.h"
-#include "AliESD.h"
+#include "AliESDEvent.h"
#include "AliESDtrack.h"
-#include "AliKalmanTrack.h"
+#include "AliESDCaloCluster.h"
#include "AliEMCALRecPoint.h"
#include "AliRunLoader.h"
#include "AliEMCALTrack.h"
#include "AliEMCALLoader.h"
#include "AliEMCALGeometry.h"
+#include "AliEMCALReconstructor.h"
+#include "AliEMCALRecParam.h"
+#include "AliCDBEntry.h"
+#include "AliCDBManager.h"
+#include "AliEMCALReconstructor.h"
+#include "AliEMCALRecoUtils.h"
#include "AliEMCALTracker.h"
ClassImp(AliEMCALTracker)
+
//
//------------------------------------------------------------------------------
//
AliEMCALTracker::AliEMCALTracker()
- : AliTracker(),
- fNPropSteps(0),
- fTrackCorrMode(kTrackCorrNone),
- fCutX(50.0),
- fCutY(50.0),
- fCutZ(50.0),
- fCutAlphaMin(-200.0),
- fCutAlphaMax(200.0),
- fCutAngle(100.0),
- fMaxDist(100.0),
- fRho(1.0),
- fX0(1.0),
- fTracks(0),
- fClusters(0),
- fMatches(0),
- fGeom(0)
+: AliTracker(),
+ fCutPt(0),
+ fCutNITS(0),
+ fCutNTPC(50),
+ fStep(20),
+ fTrackCorrMode(kTrackCorrMMB),
+ fClusterWindow(50),
+ fCutEta(0.025),
+ fCutPhi(0.05),
+ fTracks(0),
+ fClusters(0),
+ fGeom(0)
{
- //
- // Default constructor.
- // Initializes al simple data members to default values,
- // and all collections to NULL.
- // Output file name is set to a default value.
- //
+ //
+ // Default constructor.
+ // Initializes all simple data members to default values,
+ // and all collections to NULL.
+ // Output file name is set to a default value.
+ //
+ InitParameters();
}
//
//------------------------------------------------------------------------------
//
AliEMCALTracker::AliEMCALTracker(const AliEMCALTracker& copy)
: AliTracker(),
- fNPropSteps(copy.fNPropSteps),
+ fCutPt(copy.fCutPt),
+ fCutNITS(copy.fCutNITS),
+ fCutNTPC(copy.fCutNTPC),
+ fStep(copy.fStep),
fTrackCorrMode(copy.fTrackCorrMode),
- fCutX(copy.fCutX),
- fCutY(copy.fCutY),
- fCutZ(copy.fCutZ),
- fCutAlphaMin(copy.fCutAlphaMin),
- fCutAlphaMax(copy.fCutAlphaMax),
- fCutAngle(copy.fCutAngle),
- fMaxDist(copy.fMaxDist),
- fRho(copy.fRho),
- fX0(copy.fX0),
+ fClusterWindow(copy.fClusterWindow),
+ fCutEta(copy.fCutEta),
+ fCutPhi(copy.fCutPhi),
fTracks((TObjArray*)copy.fTracks->Clone()),
fClusters((TObjArray*)copy.fClusters->Clone()),
- fMatches((TList*)copy.fMatches->Clone()),
fGeom(copy.fGeom)
{
- //
- // Copy constructor
- // Besides copying all parameters, duplicates all collections.
- //
+ //
+ // Copy constructor
+ // Besides copying all parameters, duplicates all collections.
+ //
}
//
//------------------------------------------------------------------------------
//
-AliEMCALTracker& AliEMCALTracker::operator=(const AliEMCALTracker& copy)
-{
- //
- // Assignment operator.
- // Besides copying all parameters, duplicates all collections.
- //
-
- fCutX = copy.fCutX;
- fCutY = copy.fCutY;
- fCutZ = copy.fCutZ;
- fCutAlphaMin = copy.fCutAlphaMin;
- fCutAlphaMax = copy.fCutAlphaMax;
- fCutAngle = copy.fCutAngle;
- fMaxDist = copy.fMaxDist;
-
- fTracks = (TObjArray*)copy.fTracks->Clone();
- fClusters = (TObjArray*)copy.fClusters->Clone();
- fMatches = (TList*)copy.fMatches->Clone();
-
- fGeom = copy.fGeom;
-
- return (*this);
+AliEMCALTracker& AliEMCALTracker::operator=(const AliEMCALTracker& source)
+{ // assignment operator; use copy ctor
+ if (&source == this) return *this;
+
+ new (this) AliEMCALTracker(source);
+ return *this;
}
//
//------------------------------------------------------------------------------
//
-TTree* AliEMCALTracker::SearchTrueMatches()
+void AliEMCALTracker::InitParameters()
{
- if (!fClusters) return 0;
- if (fClusters->IsEmpty()) return 0;
- if (!fTracks) return 0;
- if (fTracks->IsEmpty()) return 0;
+ //
+ // Retrieve initialization parameters
+ //
- TTree *outTree = new TTree("tree", "True matches from event");
- Int_t indexT, indexC, label;
- outTree->Branch("indexC", &indexC, "indexC/I");
- outTree->Branch("indexT", &indexT, "indexT/I");
- outTree->Branch("label", &label , "label/I");
-
- Double_t dist;
- Int_t ic, nClusters = (Int_t)fClusters->GetEntries();
- Int_t it, nTracks = fTracks->GetEntries();
-
- for (ic = 0; ic < nClusters; ic++) {
- AliEMCALMatchCluster *cluster = (AliEMCALMatchCluster*)fClusters->At(ic);
- label = cluster->Label();
- indexC = cluster->Index();
- for (it = 0; it < nTracks; it++) {
- AliEMCALTrack *track = (AliEMCALTrack*)fTracks->At(it);
- if (TMath::Abs(track->GetSeedLabel()) != label) continue;
- dist = CheckPair(track, cluster);
- if (dist <= fMaxDist) {
- indexT = track->GetSeedIndex();
- outTree->Fill();
- }
- }
- }
+ // Check if the instance of AliEMCALRecParam exists,
+ const AliEMCALRecParam* recParam = AliEMCALReconstructor::GetRecParam();
+
+ if(!recParam){
+ AliFatal("Reconstruction parameters for EMCAL not set!");
+ }
+ else{
+
+ fCutEta = recParam->GetMthCutEta();
+ fCutPhi = recParam->GetMthCutPhi();
+ fStep = recParam->GetExtrapolateStep();
+ fCutPt = recParam->GetTrkCutPt();
+ fCutNITS = recParam->GetTrkCutNITS();
+ fCutNTPC = recParam->GetTrkCutNTPC();
+ }
- return outTree;
}
+
//
//------------------------------------------------------------------------------
//
{
//
// Clearing method
- // Clears all specified arrays and the containers themselves.
+ // Deletes all objects in arrays and the arrays themselves
//
TString opt(option);
- Bool_t doDelete = opt.Contains("DELETE");
Bool_t clearTracks = opt.Contains("TRACKS");
Bool_t clearClusters = opt.Contains("CLUSTERS");
- Bool_t clearMatches = opt.Contains("MATCHES");
if (opt.Contains("ALL")) {
clearTracks = kTRUE;
clearClusters = kTRUE;
- clearMatches = kTRUE;
}
+ //fTracks is a collection of esdTrack
+ //When clearing this array, the linked objects should not be deleted
if (fTracks != 0x0 && clearTracks) {
- if (!doDelete) {
- fTracks->Clear();
- }
- else {
- if (!fTracks->IsEmpty()) fTracks->Delete();
- delete fTracks;
- fTracks = 0;
- }
+ fTracks->Clear();
+ delete fTracks;
+ fTracks = 0;
}
if (fClusters != 0x0 && clearClusters) {
- if (!doDelete) {
- fClusters->Clear();
- }
- else {
- if (!fClusters->IsEmpty()) fClusters->Delete();
- delete fClusters;
- fClusters = 0;
- }
- }
- if (fMatches != 0x0 && clearMatches) {
- if (!doDelete) {
- fMatches->Clear();
- }
- else {
- if (!fMatches->IsEmpty()) fMatches->Delete();
- delete fMatches;
- fMatches = 0;
- }
+ fClusters->Delete();
+ delete fClusters;
+ fClusters = 0;
}
}
//
Clear("CLUSTERS");
+ cTree->SetBranchStatus("*",0); //disable all branches
+ cTree->SetBranchStatus("EMCALECARP",1); //Enable only the branch we need
+
TBranch *branch = cTree->GetBranch("EMCALECARP");
if (!branch) {
AliError("Can't get the branch with the EMCAL clusters");
TClonesArray *clusters = new TClonesArray("AliEMCALRecPoint", 1000);
branch->SetAddress(&clusters);
- cTree->GetEvent(0);
+ //cTree->GetEvent(0);
+ branch->GetEntry(0);
Int_t nClusters = (Int_t)clusters->GetEntries();
- fClusters = new TObjArray(0);
+ if(fClusters) fClusters->Delete();
+ else fClusters = new TObjArray(0);
for (Int_t i = 0; i < nClusters; i++) {
AliEMCALRecPoint *cluster = (AliEMCALRecPoint*)clusters->At(i);
if (!cluster) continue;
- if (cluster->GetClusterType() != AliESDCaloCluster::kClusterv1) continue;
AliEMCALMatchCluster *matchCluster = new AliEMCALMatchCluster(i, cluster);
fClusters->AddLast(matchCluster);
}
- if (fClusters->IsEmpty()) {
- AliError("No clusters collected");
- return 1;
- }
-
+
branch->SetAddress(0);
clusters->Delete();
delete clusters;
- AliInfo(Form("Collected %d clusters", fClusters->GetEntries()));
+ AliInfo(Form("Collected %d RecPoints from Tree", fClusters->GetEntries()));
return 0;
}
//
//------------------------------------------------------------------------------
//
-Int_t AliEMCALTracker::LoadClusters(AliESD *esd)
+Int_t AliEMCALTracker::LoadClusters(AliESDEvent *esd)
{
- //
- // Load EMCAL clusters in the form of AliESDCaloClusters,
- // from an AliESD object.
- //
+ //
+ // Load EMCAL clusters in the form of AliESDCaloClusters,
+ // from an AliESD object.
+ //
+
+ // make sure that tracks/clusters collections are empty
+ Clear("CLUSTERS");
+ fClusters = new TObjArray(0);
+
+ Int_t nClusters = esd->GetNumberOfCaloClusters();
+ for (Int_t i=0; i<nClusters; i++)
+ {
+ AliESDCaloCluster *cluster = esd->GetCaloCluster(i);
+ if (!cluster || !cluster->IsEMCAL()) continue ;
+ AliEMCALMatchCluster *matchCluster = new AliEMCALMatchCluster(i, cluster);
+ fClusters->AddLast(matchCluster);
+ }
+
+ AliInfo(Form("Collected %d clusters from ESD", fClusters->GetEntries()));
+ return 0;
+}
+//
+//------------------------------------------------------------------------------
+//
+Int_t AliEMCALTracker::LoadTracks(AliESDEvent *esd)
+{
+ //
+ // Load ESD tracks.
+ //
+
+ Clear("TRACKS");
+ fTracks = new TObjArray(0);
+
+ Int_t nTracks = esd->GetNumberOfTracks();
+ //Bool_t isKink=kFALSE;
+ for (Int_t i = 0; i < nTracks; i++)
+ {
+ AliESDtrack *esdTrack = esd->GetTrack(i);
+ // set by default the value corresponding to "no match"
+ esdTrack->SetEMCALcluster(kUnmatched);
+ esdTrack->ResetStatus(AliESDtrack::kEMCALmatch);
- // make sure that tracks/clusters collections are empty
- Clear("CLUSTERS");
-
- Int_t start = esd->GetFirstEMCALCluster();
- Int_t nClustersEMC = esd->GetNumberOfEMCALClusters();
- Int_t end = start + nClustersEMC;
-
- fClusters = new TObjArray(0);
-
- Int_t i;
- for (i = start; i < end; i++) {
- AliESDCaloCluster *cluster = esd->GetCaloCluster(i);
- if (!cluster) continue;
- if (cluster->GetClusterType() != AliESDCaloCluster::kClusterv1) continue;
- AliEMCALMatchCluster *matchCluster = new AliEMCALMatchCluster(i, cluster);
- fClusters->AddLast(matchCluster);
- }
- if (fClusters->IsEmpty()) {
- AliError("No clusters collected");
- return 1;
- }
-
- AliInfo(Form("Collected %d clusters", fClusters->GetEntries()));
+ //Select good quaulity tracks
+ if(esdTrack->Pt()<fCutPt) continue;
+ if(esdTrack->GetNcls(1)<fCutNTPC)continue;
- return 0;
+ //Loose geometric cut
+ Double_t phi = esdTrack->Phi()*TMath::RadToDeg();
+ if(TMath::Abs(esdTrack->Eta())>0.8 || phi <= 20 || phi >= 240 ) continue;
+
+ fTracks->AddLast(esdTrack);
+ }
+
+ AliInfo(Form("Collected %d tracks", fTracks->GetEntries()));
+ return 0;
}
//
//------------------------------------------------------------------------------
//
-Int_t AliEMCALTracker::LoadTracks(AliESD *esd)
+void AliEMCALTracker::SetTrackCorrectionMode(Option_t *option)
{
- //
- // Load ESD tracks.
- //
-
- Clear("TRACKS");
-
- Int_t nTracks = esd->GetNumberOfTracks();
- fTracks = new TObjArray(0);
-
- Int_t i, j;
- Bool_t isKink;
- Double_t alpha;
- for (i = 0; i < nTracks; i++) {
- AliESDtrack *esdTrack = esd->GetTrack(i);
- // set by default the value corresponding to "no match"
- esdTrack->SetEMCALcluster(kUnmatched);
-// if (esdTrack->GetLabel() < 0) continue;
-// if (!(esdTrack->GetStatus() & AliESDtrack::kTOFout)) continue;
- isKink = kFALSE;
- for (j = 0; j < 3; j++) {
- if (esdTrack->GetKinkIndex(j) != 0) isKink = kTRUE;
- }
- if (isKink) continue;
- AliEMCALTrack *track = new AliEMCALTrack(*esdTrack);
- track->SetMass(0.13957018);
- // check alpha and reject the tracks which fall outside EMCAL acceptance
- alpha = track->GetAlpha() * TMath::RadToDeg();
- if (alpha > -155.0 && alpha < 67.0) {
- delete track;
- continue;
- }
-// if (!PropagateToEMCAL(track)) {
-// delete track;
-// continue;
-// }
- track->SetSeedIndex(i);
- track->SetSeedLabel(esdTrack->GetLabel());
- fTracks->AddLast(track);
- }
- if (fTracks->IsEmpty()) {
- AliError("No tracks collected");
- return 1;
- }
-
- AliInfo(Form("Collected %d tracks", fTracks->GetEntries()));
-
- return 0;
+ //
+ // Set track correction mode
+ // gest the choice in string format and converts into
+ // internal enum
+ //
+
+ TString opt(option);
+ opt.ToUpper();
+
+ if (!opt.CompareTo("NONE"))
+ {
+ fTrackCorrMode = kTrackCorrNone;
+ }
+ else if (!opt.CompareTo("MMB"))
+ {
+ fTrackCorrMode = kTrackCorrMMB;
+ }
+ else
+ {
+ cerr << "E-AliEMCALTracker::SetTrackCorrectionMode '" << option << "': Unrecognized option" << endl;
+ }
}
//
//------------------------------------------------------------------------------
//
-Int_t AliEMCALTracker::PropagateBack(AliESD* esd)
+Int_t AliEMCALTracker::PropagateBack(AliESDEvent* esd)
{
//
// Main operation method.
// After executing match finding, stores in the same ESD object all infos
// and releases the object for further reconstruction steps.
//
-
+ //
+ // Note: should always return 0=OK, because otherwise all tracking
+ // is aborted for this event
+
if (!esd) {
AliError("NULL ESD passed");
return 1;
}
- // step 1:
- // if cluster array is empty, cluster are collected
- // from the passed ESD, and work is done with ESDCaloClusters
+ // step 1: collect clusters
Int_t okLoadClusters, nClusters;
if (!fClusters || (fClusters && fClusters->IsEmpty())) {
okLoadClusters = LoadClusters(esd);
- if (okLoadClusters) return 2;
}
nClusters = fClusters->GetEntries();
-
- // step 2:
- // collect ESD tracks
- Int_t okLoadTracks = LoadTracks(esd), nTracks;
- if (okLoadTracks) return 3;
+
+ // step 2: collect ESD tracks
+ Int_t nTracks, okLoadTracks;
+ okLoadTracks = LoadTracks(esd);
nTracks = fTracks->GetEntries();
- // step 3:
- // each track is propagated to the "R" position of each cluster.
- // The closest cluster is assigned as match.
- // IF no clusters lie within the maximum allowed distance, no matches are assigned.
- Int_t nMatches = CreateMatches();
- if (!nMatches) {
- AliInfo(Form("#clusters = %d -- #tracks = %d --> No good matches found.", nClusters, nTracks));
- return 4;
- }
- else {
- AliInfo(Form("#clusters = %d -- #tracks = %d --> Found %d matches.", nClusters, nTracks, nMatches));
- }
-
- // step 4:
- // when more than 1 track share the same matched cluster, only the closest one is kept.
- Int_t nRemoved = SolveCompetitions();
- AliInfo(Form("Removed %d duplicate matches", nRemoved));
- if (nRemoved >= nMatches) {
- AliError("Removed ALL matches! Check the algorithm or data. Nothing to save");
- return 5;
- }
-
- // step 5:
- // save obtained information setting the 'fEMCALindex' field of AliESDtrack object
- Int_t nSaved = 0, trackID, nGood = 0, nFake = 0;
- TListIter iter(fMatches);
- AliEMCALMatch *match = 0;
- while ( (match = (AliEMCALMatch*)iter.Next()) ) {
- if (!match->CanBeSaved()) continue;
- AliEMCALTrack *track = (AliEMCALTrack*)fTracks->At(match->GetIndexT());
- AliEMCALMatchCluster *cluster = (AliEMCALMatchCluster*)fClusters->At(match->GetIndexC());
- trackID = track->GetSeedIndex();
- AliESDtrack *esdTrack = esd->GetTrack(trackID);
- if (!esdTrack) continue;
- if (TMath::Abs(esdTrack->GetLabel()) == cluster->Label()) {
- esdTrack->SetEMCALcluster(cluster->Index());
- nGood++;
- }
- else {
- esdTrack->SetEMCALcluster(-cluster->Index());
- nFake++;
- }
- nSaved++;
- }
- /*
- AliEMCALTrack *track = 0;
- TObjArrayIter tracks(fTracks);
- while ( (track = (AliEMCALTrack*)tracks.Next()) ) {
- trackID = track->GetSeedIndex();
- clusterID = track->GetMatchedClusterIndex();
- AliESDtrack *esdTrack = esd->GetTrack(trackID);
- if (!esdTrack) continue;
- if (clusterID < 0) {
- esdTrack->SetEMCALcluster(kUnmatched);
- }
- else {
- AliEMCALMatchCluster *cluster = (AliEMCALMatchCluster*)fClusters->At(clusterID);
- if (!cluster) continue;
- if (esdTrack->GetLabel() == cluster->Label()) {
- nGood++;
- esdTrack->SetEMCALcluster(cluster->Index());
- }
- else {
- esdTrack->SetEMCALcluster(-cluster->Index());
- }
- nSaved++;
- }
- }
- */
- AliInfo(Form("Saved %d matches [%d good + %d fake]", nSaved, nGood, nFake));
+ // step 3: for each track, find the closest cluster as matched within residual cuts
+ Int_t index=-1;
+ for (Int_t it = 0; it < nTracks; it++)
+ {
+ AliESDtrack *track = (AliESDtrack*)fTracks->At(it);
+ index = FindMatchedCluster(track);
+ if (index>-1)
+ {
+ AliEMCALMatchCluster *cluster = (AliEMCALMatchCluster*)fClusters->At(index);
+ track->SetEMCALcluster(cluster->Index());
+ track->SetStatus(AliESDtrack::kEMCALmatch);
+ }
+ }
return 0;
}
-//
-//------------------------------------------------------------------------------
-//
-void AliEMCALTracker::SetTrackCorrectionMode(Option_t *option)
-{
- //
- // Set track correction mode
- // gest the choice in string format and converts into
- // internal enum
- //
-
- TString opt(option);
- opt.ToUpper();
-
- if (!opt.CompareTo("NONE")) {
- fTrackCorrMode = kTrackCorrNone;
- }
- else if (!opt.CompareTo("MMB")) {
- fTrackCorrMode = kTrackCorrMMB;
- }
- else if (!opt.CompareTo("FIXED")) {
- fTrackCorrMode = kTrackCorrFixed;
- }
- else {
- cerr << "E-AliEMCALTracker::SetTrackCorrectionMode '" << option << "': Unrecognized option" << endl;
- }
-}
//
//------------------------------------------------------------------------------
//
-Double_t AliEMCALTracker::AngleDiff(Double_t angle1, Double_t angle2)
-{
- //
- // [PRIVATE]
- // Given two angles in radiants, it converts them in the range 0-2pi
- // then computes their true difference, i.e. if the difference a1-a2
- // results to be larger than 180 degrees, it returns 360 - diff.
- //
-
- if (angle1 < 0.0) angle1 += TMath::TwoPi();
- if (angle1 > TMath::TwoPi()) angle1 -= TMath::TwoPi();
- if (angle2 < 0.0) angle2 += TMath::TwoPi();
- if (angle2 > TMath::TwoPi()) angle2 -= TMath::TwoPi();
-
- Double_t diff = TMath::Abs(angle1 - angle2);
- if (diff > TMath::Pi()) diff = TMath::TwoPi() - diff;
-
- if (angle2 > angle1) diff = -diff;
-
- return diff;
-}
-//
-//------------------------------------------------------------------------------
-//
-Double_t AliEMCALTracker::CheckPair
-(AliEMCALTrack *track, AliEMCALMatchCluster *cl)
-{
- //
- // Given a track and a cluster,
- // propagates the first to the radius of the second.
- // Then, checks the propagation point against all cuts.
- // If at least a cut is not passed, a valuer equal to
- // twice the maximum allowed distance is passed (so the value returned
- // will not be taken into account when creating matches)
- //
-
- // TEMP
- Bool_t isTrue = kFALSE;
-// if (tr->GetSeedLabel() == cl->Label()) {
-// isTrue = kTRUE;
-// }
-
- // copy track into temporary variable
- AliEMCALTrack *tr = new AliEMCALTrack(*track);
-
- Double_t distance = 2.0 * fMaxDist;
-
- // check against cut on difference 'alpha - phi'
- Double_t phi = TMath::ATan2(cl->Y(), cl->X());
- phi = AngleDiff(phi, tr->GetAlpha());
- if (phi < fCutAlphaMin || phi > fCutAlphaMax) return distance;
-
- // try to propagate to cluster radius
- // (return the 'distance' value if it fails)
- Double_t pos[3], &x = pos[0], &y = pos[1], &z = pos[2];
- Double_t x0, rho;
- tr->GetXYZ(pos);
- Double_t rt = TMath::Sqrt(x*x + y*y);
- Double_t rc = TMath::Sqrt(cl->X()*cl->X() + cl->Y()*cl->Y());
-
- if (fTrackCorrMode == kTrackCorrMMB) {
- Double_t pos1[3], pos2[3], param[6];
- pos1[0] = x;
- pos1[1] = y;
- pos1[2] = z;
- pos2[0] = cl->X();
- pos2[1] = cl->Y();
- pos2[2] = cl->Z();
- AliKalmanTrack::MeanMaterialBudget(pos1, pos2, param);
- rho = param[0];
- x0 = param[1];
- }
- else if (fTrackCorrMode == kTrackCorrFixed) {
- rho = fRho;
- x0 = fX0;
- }
- else {
- rho = 0.0;
- x0 = 0.0;
- }
- if (fNPropSteps) {
- Int_t i;
- Double_t r;
- cout.setf(ios::fixed);
- cout.precision(5);
- if (isTrue) cout << "Init : " << rt << ' ' << x << ' ' << y << ' ' << z << endl;
- for (i = 0; i < fNPropSteps; i++) {
- r = rt + (rc - rt) * ((Double_t)(i+1)/(Double_t)fNPropSteps);
- if (!tr->PropagateTo(r, x0, rho)) return distance;
- tr->GetXYZ(pos);
- if (isTrue) cout << "Step : " << r << ' ' << x << ' ' << y << ' ' << z << endl;
- }
- if (isTrue) cout << "Clstr: " << rc << ' ' << cl->X() << ' ' << cl->Y() << ' ' << cl->Z() << endl;
- }
- else {
- // when no steps are used, no correction makes sense
- //if (!tr->PropagateTo(rc, 0.0, 0.0)) return distance;
- if (!tr->PropagateToGlobal(cl->X(), cl->Y(), cl->Z(), 0.0, 0.0)) return distance;
- /*
- Bool_t propOK = kFALSE;
- cout << "START" << endl;
- Double_t dist, rCHK, bestDist = 10000000.0;
- for (Double_t rTMP = rc; rTMP> rc*0.95; rTMP -= 0.1) {
- if (!tr->PropagateTo(rTMP)) continue;
- propOK = kTRUE;
- tr->GetXYZ(pos);
- rCHK = TMath::Sqrt(x*x + y*y);
- dist = TMath::Abs(rCHK - rc);
- cout << rCHK << " vs. " << rc << endl;
-
- if (TMath::Abs(rCHK - rc) < 0.01) break;
- }
- cout << "STOP" << endl;
- if (!propOK) return distance;
- */
- }
-
- // get global propagation of track at end of propagation
- tr->GetXYZ(pos);
-
- // check angle cut
- TVector3 vc(cl->X(), cl->Y(), cl->Z());
- TVector3 vt(x, y, z);
- Double_t angle = TMath::Abs(vc.Angle(vt)) * TMath::RadToDeg();
- // check: where is the track?
- Double_t r, phiT, phiC;
- r = TMath::Sqrt(pos[0]*pos[0] + pos[1]*pos[1]);
- phiT = TMath::ATan2(pos[1], pos[0]) * TMath::RadToDeg();
- phiC = vc.Phi() * TMath::RadToDeg();
- //cout << "Propagated R, phiT, phiC = " << r << ' ' << phiT << ' ' << phiC << endl;
-
- if (angle > fCutAngle) {
- //cout << "angle" << endl;
- return distance;
- }
-
- // compute differences wr to each coordinate
- x -= cl->X();
- if (TMath::Abs(x) > fCutX) {
- //cout << "cut X" << endl;
- return distance;
- }
- y -= cl->Y();
- if (TMath::Abs(y) > fCutY) {
- //cout << "cut Y" << endl;
- return distance;
- }
- z -= cl->Z();
- if (TMath::Abs(z) > fCutZ) {
- //cout << "cut Z" << endl;
- return distance;
- }
-
- // compute true distance
- distance = TMath::Sqrt(x*x + y*y + z*z);
- //Double_t temp = CheckPairV2(tr, cl);
- //if (temp < distance) return temp; else
-
- // delete temporary object
- delete tr;
-
- return distance;
-}
-//
-//------------------------------------------------------------------------------
-//
-Double_t AliEMCALTracker::CheckPairV2
-(AliEMCALTrack *tr, AliEMCALMatchCluster *cl)
-{
- //
- // Given a track and a cluster,
- // propagates the first to the radius of the second.
- // Then, checks the propagation point against all cuts.
- // If at least a cut is not passed, a valuer equal to
- // twice the maximum allowed distance is passed (so the value returned
- // will not be taken into account when creating matches)
- //
-
- // TEMP
-// Bool_t isTrue = kFALSE;
-// if (tr->GetSeedLabel() == cl->Label()) {
-// isTrue = kTRUE;
-// cout << "TRUE MATCH!!!" << endl;
-// }
-
- Double_t distance = 2.0 * fMaxDist;
-
- Double_t x0, rho;
- if (fTrackCorrMode == kTrackCorrMMB) {
- Double_t pos1[3], pos2[3], param[6];
- tr->GetXYZ(pos1);
-// pos1[0] = x;
-// pos1[1] = y;
-// pos1[2] = z;
- pos2[0] = cl->X();
- pos2[1] = cl->Y();
- pos2[2] = cl->Z();
- AliKalmanTrack::MeanMaterialBudget(pos1, pos2, param);
- rho = param[0];
- x0 = param[1];
- }
- else if (fTrackCorrMode == kTrackCorrFixed) {
- rho = fRho;
- x0 = fX0;
- }
- else {
- rho = 0.0;
- x0 = 0.0;
- }
-
- // check against cut on difference 'alpha - phi'
- Double_t phi = TMath::ATan2(cl->Y(), cl->X());
- phi = AngleDiff(phi, tr->GetAlpha());
- if (phi < fCutAlphaMin || phi > fCutAlphaMax) return distance;
-
- // get cluster position and put them into a vector
- TVector3 vc(cl->X(), cl->Y(), cl->Z());
- // rotate the vector in order to put all clusters on a plane intersecting
- // vertically the X axis; the angle depends on the sector
- Double_t clusterRot, clusterPhi = vc.Phi() * TMath::RadToDeg();
- if (clusterPhi < 0.0) clusterPhi += 360.0;
- if (clusterPhi < 100.0) {
- clusterRot = -90.0;
- }
- else if (clusterPhi < 120.0) {
- clusterRot = -110.0;
- }
- else if (clusterPhi < 140.0) {
- clusterRot = -130.0;
- }
- else if (clusterPhi < 160.0) {
- clusterRot = -150.0;
- }
- else if (clusterPhi < 180.0) {
- clusterRot = -170.0;
- }
- else {
- clusterRot = -190.0;
- }
- vc.RotateZ(clusterRot * TMath::DegToRad());
- // generate a track from the ESD track selected
- AliEMCALTrack *track = new AliEMCALTrack(*tr);
- // compute the 'phi' coordinate of the intersection point to
- // the EMCAL surface
- Double_t x = vc.X();
- Double_t y;
- track->GetYAt(vc.X(), track->GetBz(), y);
- Double_t tmp = x*TMath::Cos(track->GetAlpha()) - y*TMath::Sin(track->GetAlpha());
- y = x*TMath::Sin(track->GetAlpha()) + y*TMath::Cos(track->GetAlpha());
- x = tmp;
- Double_t trackPhi = TMath::ATan2(y, x) * TMath::RadToDeg();
- // compute phi difference
- Double_t dphi = trackPhi - clusterPhi;
- if (TMath::Abs(dphi) > 180.0) {
- dphi = 360.0 - TMath::Abs(dphi);
- if (clusterPhi > trackPhi) dphi = -dphi;
- }
- // propagate track to the X position of rotated cluster
- // and get the vector of X, Y, Z in the local ref. frame of the track
- track->PropagateTo(vc.X(), x0, rho);
- TVector3 vt(track->GetX(), track->GetY(), track->GetZ());
- vt.RotateZ((clusterPhi - trackPhi) * TMath::DegToRad());
- TVector3 vdiff = vt-vc;
-
- // compute differences wr to each coordinate
- if (vdiff.X() > fCutX) return distance;
- if (vdiff.Y() > fCutY) return distance;
- if (vdiff.Z() > fCutZ) return distance;
-
- // compute true distance
- distance = vdiff.Mag();
- return distance;
-}
-//
-//------------------------------------------------------------------------------
-//
-Double_t AliEMCALTracker::CheckPairV3
-(AliEMCALTrack *track, AliEMCALMatchCluster *cl)
-{
- //
- // Given a track and a cluster,
- // propagates the first to the radius of the second.
- // Then, checks the propagation point against all cuts.
- // If at least a cut is not passed, a valuer equal to
- // twice the maximum allowed distance is passed (so the value returned
- // will not be taken into account when creating matches)
- //
-
- AliEMCALTrack tr(*track);
-
- Int_t sector;
- Double_t distance = 2.0 * fMaxDist;
- Double_t dx, dy, dz;
- Double_t phi, alpha, slope, tgtXnum, tgtXden, sectorWidth = 20.0 * TMath::DegToRad();
- Double_t xcurr, xprop, param[6] = {0., 0., 0., 0., 0., 0.}, d, x0, rho, bz;
- Double_t x[3], x1[3], x2[3];
-
- // get initial track position
- xcurr = tr.GetX();
-
- // evaluate the EMCAL sector number
- phi = cl->Phi();
- if (phi < 0.0) phi += TMath::TwoPi();
- sector = (Int_t)(phi / sectorWidth);
- alpha = ((Double_t)sector + 0.5) * sectorWidth;
- // evaluate the corresponding X for track propagation
- slope = TMath::Tan(alpha - 0.5*TMath::Pi());
- tgtXnum = cl->Y() - slope * cl->X();
- tgtXden = TMath::Sqrt(1.0 + slope*slope);
- xprop = TMath::Abs(tgtXnum / tgtXden);
-
- // propagate by small steps
- tr.GetXYZ(x1);
- bz = tr.GetBz();
- if (!tr.GetXYZAt(xprop, bz, x2)) return distance;
- //AliKalmanTrack::MeanMaterialBudget(x1, x2, param);
- d = param[4];
- rho = param[0];
- x0 = param[1];
- if (!tr.PropagateTo(xprop, d*rho/x0, x0)) return distance;
- //if (!tr.PropagateTo(xprop, 0.0, 0.0)) return distance;
-
- // get propagated position at the end
- tr.GetXYZ(x);
- dx = TMath::Abs(x[0] - cl->X());
- dy = TMath::Abs(x[1] - cl->Y());
- dz = TMath::Abs(x[2] - cl->Z());
- if (dx > fCutX || dy > fCutY || dz > fCutZ) return distance;
-
- distance = TMath::Sqrt(dx*dx + dy*dy + dz*dz);
-
- return distance;
-}
-//
-//------------------------------------------------------------------------------
-//
-Bool_t AliEMCALTracker::PropagateToEMCAL(AliEMCALTrack *tr)
-{
- //
- // Propagates the track to the proximity of the EMCAL surface
- //
-
- Double_t xcurr, xtemp, xprop = 438.0, step = 10.0, param[6], d, x0, rho, bz;
- Double_t x1[3], x2[3];
-
- // get initial track position
- xcurr = tr->GetX();
-
- // propagate by small steps
- for (xtemp = xcurr + step; xtemp < xprop; xtemp += step) {
- // to compute material budget, take current position and
- // propagated hypothesis without energy loss
- tr->GetXYZ(x1);
- bz = tr->GetBz();
- if (!tr->GetXYZAt(xtemp, bz, x2)) return kFALSE;
- AliKalmanTrack::MeanMaterialBudget(x1, x2, param);
- d = param[4];
- rho = param[0];
- x0 = param[1];
- if (!tr->PropagateTo(xtemp, d*rho/x0, x0)) return kFALSE;
- }
-
- return kTRUE;
-}
-//
-//------------------------------------------------------------------------------
-//
-Int_t AliEMCALTracker::CreateMatches()
-{
- //
- // Creation of matches between tracks and clusters.
- // For each ESD track collected by ReadESD(), an AliEMCALTrack is made.
- // If it finds a cluster close enough to its propagation to EMCAL,
- // which passes all cuts, its index is stored.
- // If many clusters are found which satisfy the criteria described above,
- // only the closest one is stored.
- // At this level, it is possible that two tracks share the same cluster.
- //
-
- // if matches collection is already present, it is deleted
- if (fMatches) {
- fMatches->Delete();
- delete fMatches;
- }
- fMatches = new TList;
-
- // initialize counters and indexes
- Int_t count = 0;
- Int_t ic, nClusters = (Int_t)fClusters->GetEntries();
- Int_t it, nTracks = fTracks->GetEntries();
-
- // external loop on clusters, internal loop on tracks
- Double_t dist;
- for (ic = 0; ic < nClusters; ic++) {
- AliEMCALMatchCluster *cluster = (AliEMCALMatchCluster*)fClusters->At(ic);
- for (it = 0; it < nTracks; it++) {
- AliEMCALTrack *track = (AliEMCALTrack*)fTracks->At(it);
- dist = CheckPair(track, cluster);
- //cout << dist << endl;
- if (dist <= fMaxDist) {
- AliEMCALMatch *candidate = new AliEMCALMatch;
- candidate->SetIndexT(it);
- candidate->SetIndexC(ic);
- candidate->SetDistance(dist);
- candidate->SetPt(track->GetPt());
- fMatches->Add(candidate);
- count++;
- }
- }
- }
-
- /*
- // loop on clusters and tracks
- Int_t icBest;
- Double_t dist, distBest;
- for (it = 0; it < nTracks; it++) {
- AliEMCALTrack *track = (AliEMCALTrack*)fTracks->At(it);
- if (!track) continue;
- icBest = -1;
- distBest = fMaxDist;
- for (ic = 0; ic < nClusters; ic++) {
- AliEMCALMatchCluster *cluster = (AliEMCALMatchCluster*)fClusters->At(ic);
- if (!cluster) continue;
- dist = CheckPair(track, cluster);
- if (dist < distBest) {
- distBest = dist;
- icBest = ic;
- }
- }
- if (icBest >= 0) {
- track->SetMatchedClusterIndex(icBest);
- track->SetMatchedClusterDist(distBest);
- count++;
- }
- else {
- track->SetMatchedClusterIndex(-1);
- }
- }
- */
-
- return count;
-}
-//
-//------------------------------------------------------------------------------
-//
-Int_t AliEMCALTracker::SolveCompetitions()
-{
- //
- // Match selector.
- // The match list is sorted from the best to the worst match, w.r. to the
- // distance between track prolongation and cluster position.
- // Based on this criterion, starting from the first (best) match, a flag
- // is set to both the involved track and cluster, and all matches containing
- // an already used track or cluster are removed, leaving only the best match
- // for each cluster.
- //
-
- // sort matches with respect to track-cluster distance
- fMatches->Sort(kSortAscending);
-
- // keep track of eliminated matches
- Int_t count = 0;
-
- // initialize flags to check repetitions
- Int_t ic, nClusters = (Int_t)fClusters->GetEntries();
- Int_t it, nTracks = fTracks->GetEntries();
- Bool_t *usedC = new Bool_t[nClusters];
- Bool_t *usedT = new Bool_t[nTracks];
- for (ic = 0; ic < nClusters; ic++) usedC[ic] = kFALSE;
- for (it = 0; it < nTracks; it++) usedT[it] = kFALSE;
-
- // loop on matches
- TListIter iter(fMatches);
- AliEMCALMatch *match = 0;
- while ( (match = (AliEMCALMatch*)iter.Next()) ) {
- ic = match->GetIndexC();
- it = match->GetIndexT();
- if (!usedT[it] && !usedC[ic]) {
- usedT[it] = kTRUE;
- usedC[ic] = kTRUE;
- match->CanBeSaved() = kTRUE;
- }
- else {
- count++;
- }
- }
-
- /*
- Int_t it1, it2, nTracks = (Int_t)fTracks->GetEntries();
- AliEMCALTrack *track1 = 0, *track2 = 0;
- for (it1 = 0; it1 < nTracks; it1++) {
- track1 = (AliEMCALTrack*)fTracks->At(it1);
- if (!track1) continue;
- if (track1->GetMatchedClusterIndex() < 0) continue;
- for (it2 = it1+1; it2 < nTracks; it2++) {
- track2 = (AliEMCALTrack*)fTracks->At(it2);
- if (!track2) continue;
- if (track2->GetMatchedClusterIndex() < 0) continue;
- if (track1->GetMatchedClusterIndex() != track2->GetMatchedClusterIndex()) continue;
- count++;
- if (track1->GetMatchedClusterDist() < track2->GetMatchedClusterDist()) {
- track2->SetMatchedClusterIndex(-1);
- }
- else if (track2->GetMatchedClusterDist() < track1->GetMatchedClusterDist()) {
- track1->SetMatchedClusterIndex(-1);
- }
- }
- }
- */
-
- return count;
+Int_t AliEMCALTracker::FindMatchedCluster(AliESDtrack *track)
+{
+ //
+ // For each track, extrapolate it to all the clusters
+ // Find the closest one as matched if the residuals (dEta, dPhi) satisfy the cuts
+ //
+
+ Float_t maxEta=fCutEta;
+ Float_t maxPhi=fCutPhi;
+ Int_t index = -1;
+
+ // If the esdFriend is available, use the TPCOuter point as the starting point of extrapolation
+ // Otherwise use the TPCInner point
+ AliExternalTrackParam *trkParam = 0;
+ const AliESDfriendTrack* friendTrack = track->GetFriendTrack();
+ if(friendTrack && friendTrack->GetTPCOut())
+ trkParam = const_cast<AliExternalTrackParam*>(friendTrack->GetTPCOut());
+ else
+ trkParam = const_cast<AliExternalTrackParam*>(track->GetInnerParam());
+ if(!trkParam) return index;
+
+
+ AliExternalTrackParam trkParamTmp(*trkParam);
+ Float_t eta, phi;
+ if(!AliEMCALRecoUtils::ExtrapolateTrackToEMCalSurface(&trkParamTmp, 430., track->GetMass(kTRUE), fStep, eta, phi)) return index;
+ track->SetTrackPhiEtaOnEMCal(phi,eta);
+ if(TMath::Abs(eta)>0.75 || (phi) < 70*TMath::DegToRad() || (phi) > 190*TMath::DegToRad()) return index;
+
+ //Perform extrapolation
+ Double_t trkPos[3];
+ trkParamTmp.GetXYZ(trkPos);
+ Int_t nclusters = fClusters->GetEntries();
+ for(Int_t ic=0; ic<nclusters; ic++)
+ {
+ AliEMCALMatchCluster *cluster = (AliEMCALMatchCluster*)fClusters->At(ic);
+ Float_t clsPos[3] = {cluster->X(),cluster->Y(),cluster->Z()};
+ Double_t dR = TMath::Sqrt(TMath::Power(trkPos[0]-clsPos[0],2)+TMath::Power(trkPos[1]-clsPos[1],2)+TMath::Power(trkPos[2]-clsPos[2],2));
+ if(dR > fClusterWindow) continue;
+
+ AliExternalTrackParam trkParTmp(trkParamTmp);
+
+ Float_t tmpEta, tmpPhi;
+ if(!AliEMCALRecoUtils::ExtrapolateTrackToPosition(&trkParTmp, clsPos,track->GetMass(kTRUE), 5, tmpEta, tmpPhi)) continue;
+ if(TMath::Abs(tmpPhi)<TMath::Abs(maxPhi) && TMath::Abs(tmpEta)<TMath::Abs(maxEta))
+ {
+ maxPhi=tmpPhi;
+ maxEta=tmpEta;
+ index=ic;
+ }
+ }
+ return index;
}
+
//
//------------------------------------------------------------------------------
//
void AliEMCALTracker::UnloadClusters()
{
//
- // Free memory from clusters
+ // Free memory from all arrays
+ // This method is called after the local tracking step
+ // so we can safely delete everything
//
- Clear("CLUSTERS");
+ Clear();
}
+
//
//------------------------------------------------------------------------------
//
AliEMCALTracker::AliEMCALMatchCluster::AliEMCALMatchCluster(Int_t index, AliEMCALRecPoint *recPoint)
: fIndex(index),
- fLabel(recPoint->GetPrimaryIndex()),
fX(0.),
fY(0.),
fZ(0.)
//
AliEMCALTracker::AliEMCALMatchCluster::AliEMCALMatchCluster(Int_t index, AliESDCaloCluster *caloCluster)
: fIndex(index),
- fLabel(caloCluster->GetPrimaryIndex()),
fX(0.),
fY(0.),
fZ(0.)
// Translates an AliESDCaloCluster object into the internal format.
// Index of passed cluster in its native array must be specified.
//
- Float_t clpos[3];
- caloCluster->GetGlobalPosition(clpos);
+ Float_t clpos[3]= {0., 0., 0.};
+ caloCluster->GetPosition(clpos);
fX = (Double_t)clpos[0];
fY = (Double_t)clpos[1];
fZ = (Double_t)clpos[2];
}
-//
-//------------------------------------------------------------------------------
-//
-Int_t AliEMCALTracker::AliEMCALMatch::Compare(const TObject *obj) const
-{
- //
- // Tracks compared wrt their distance from matched point
- //
-
- AliEMCALTracker::AliEMCALMatch *that = (AliEMCALTracker::AliEMCALMatch*)obj;
-
- Double_t thisDist = fPt;//fDistance;
- Double_t thatDist = that->fPt;//that->GetDistance();
-
- if (thisDist > thatDist) return 1;
- else if (thisDist < thatDist) return -1;
- return 0;
-}
-
-AliEMCALTracker::AliEMCALMatch::AliEMCALMatch()
- : TObject(),
- fCanBeSaved(kFALSE),
- fIndexC(0),
- fIndexT(0),
- fDistance(0.),
- fPt(0.)
-{
- //default constructor
-
-}
-
-AliEMCALTracker::AliEMCALMatch::AliEMCALMatch(const AliEMCALMatch& copy)
- : TObject(),
- fCanBeSaved(copy.fCanBeSaved),
- fIndexC(copy.fIndexC),
- fIndexT(copy.fIndexT),
- fDistance(copy.fDistance),
- fPt(copy.fPt)
-{
- //copy ctor
-}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff