* provided "as is" without express or implied warranty. *
**************************************************************************/
+/* $Id$ */
+
+//-----------------------------------------------------------------------------
+/// \class AliMUONTracker
+///
+/// Steering class for use in global tracking framework;
+/// reconstruct tracks from recpoints
+///
+/// Actual tracking is performed by some AliMUONVTrackReconstructor children
+/// Tracking modes (ORIGINAL, KALMAN) and associated options and parameters can be changed
+/// through the AliMUONRecoParam object set in the reconstruction macro or read from the CDB
+/// (see methods in AliMUONRecoParam.h file for details)
+///
+/// \author Christian Finck and Laurent Aphecetche, SUBATECH Nantes
+//-----------------------------------------------------------------------------
#include "AliMUONTracker.h"
-#include "AliMUONTrackReconstructorK.h"
+
+#include "AliCodeTimer.h"
+#include "AliESDEvent.h"
+#include "AliESDMuonTrack.h"
+#include "AliESDVertex.h"
+#include "AliLog.h"
+#include "AliMUONClusterStoreV2.h"
+#include "AliMUONESDInterface.h"
+#include "AliMUONLegacyClusterServer.h"
+#include "AliMUONRecoParam.h"
+#include "AliMUONReconstructor.h"
+#include "AliMUONTrack.h"
+#include "AliMUONTrackExtrap.h"
+#include "AliMUONTrackHitPattern.h"
+#include "AliMUONTrackParam.h"
#include "AliMUONTrackReconstructor.h"
-#include "AliMUONRecData.h"
+#include "AliMUONTrackReconstructorK.h"
+#include "AliMUONTrackStoreV1.h"
+#include "AliMUONTriggerTrackStoreV1.h"
+#include "AliMUONTriggerTrack.h"
+#include "AliMUONLocalTrigger.h"
+#include "AliMUONVClusterServer.h"
+#include "AliMUONVDigitStore.h"
+#include "AliMUONVTriggerStore.h"
+#include "AliMUONTriggerUtilities.h"
+#include <Riostream.h>
+#include <TRandom.h>
+#include <TTree.h>
#include "AliLog.h"
+/// \cond CLASSIMP
+ClassImp(AliMUONTracker)
+/// \endcond
+
+
//_____________________________________________________________________________
-AliMUONTracker::AliMUONTracker()
- : AliTracker(),
- fTriggerCircuit(0x0),
- fMUONData(0x0),
- fTrackReco(0x0)
+AliMUONTracker::AliMUONTracker(const AliMUONRecoParam* recoParam,
+ AliMUONVClusterServer* clusterServer,
+ AliMUONVDigitStore& digitStore,
+ const AliMUONGeometryTransformer* transformer,
+ const AliMUONTriggerCircuit* triggerCircuit,
+ const AliMUONTriggerUtilities* triggerUtilities)
+: AliTracker(),
+fkTransformer(transformer), // not owner
+fkTriggerCircuit(triggerCircuit), // not owner
+fTrackHitPatternMaker(0x0),
+fTrackReco(0x0),
+fClusterStore(0x0),
+fTriggerStore(0x0),
+fClusterServer(clusterServer),
+fIsOwnerOfClusterServer(kFALSE),
+fkDigitStore(digitStore), // not owner
+fInputClusterStore(0x0),
+fTriggerTrackStore(0x0),
+fkRecoParam(recoParam),
+fInternalTrackStore(0x0)
{
/// constructor
-
+
+ if (fkTransformer)
+ fTrackHitPatternMaker = new AliMUONTrackHitPattern(recoParam,*fkTransformer,fkDigitStore,triggerUtilities);
+
+ if (!fClusterServer)
+ {
+ AliDebug(1,"No cluster server given. Will use AliMUONLegacyClusterServer");
+ fIsOwnerOfClusterServer = kTRUE;
+ }
+ else
+ {
+ TIter next(fkDigitStore.CreateIterator());
+ fClusterServer->UseDigits(next,&digitStore);
+
+ SetupClusterServer(*fClusterServer);
+ }
}
+
//_____________________________________________________________________________
AliMUONTracker::~AliMUONTracker()
{
- /// dtr
+ /// dtor
+
delete fTrackReco;
+ delete fTrackHitPatternMaker;
+ delete fClusterStore;
+ delete fTriggerStore;
+ if ( fIsOwnerOfClusterServer ) delete fClusterServer;
+ delete fInputClusterStore;
+ delete fTriggerTrackStore;
+ delete fInternalTrackStore;
}
//_____________________________________________________________________________
-void AliMUONTracker::SetOption(Option_t* option)
+AliMUONVClusterStore*
+AliMUONTracker::ClusterStore() const
{
- /// set reconstructor class
+ /// Return (and create if necessary) the cluster container
+ if (!fClusterStore)
+ {
+ fClusterStore = new AliMUONClusterStoreV2;
+ }
+ return fClusterStore;
+}
- if (!fMUONData)
- AliError("MUONData not defined");
+//_____________________________________________________________________________
+AliMUONVTriggerTrackStore*
+AliMUONTracker::TriggerTrackStore() const
+{
+ /// Return (and create if necessary) the trigger track container
+ if (!fTriggerTrackStore)
+ {
+ fTriggerTrackStore = new AliMUONTriggerTrackStoreV1;
+ }
+ return fTriggerTrackStore;
+}
- if (!fTriggerCircuit)
- AliError("TriggerCircuit not defined");
+//_____________________________________________________________________________
+Int_t AliMUONTracker::LoadClusters(TTree* clustersTree)
+{
+ /// Load triggerStore from clustersTree
- if (strstr(option,"Original"))
- fTrackReco = new AliMUONTrackReconstructor(fMUONData);
- else if (strstr(option,"Combi"))
- fTrackReco = new AliMUONTrackReconstructorK(fMUONData,"Combi");
- else
- fTrackReco = new AliMUONTrackReconstructorK(fMUONData,"Kalman");
+ if ( ! clustersTree ) {
+ AliFatal("No clustersTree");
+ return 1;
+ }
- fTrackReco->SetTriggerCircuit(fTriggerCircuit);
+ if ( !fTriggerStore )
+ {
+ fTriggerStore = AliMUONVTriggerStore::Create(*clustersTree);
+ }
+
+ if (!fTriggerStore)
+ {
+ AliError("Could not get triggerStore");
+ return 2;
+ }
+
+ if (!fInputClusterStore)
+ {
+ fInputClusterStore = AliMUONVClusterStore::Create(*clustersTree);
+ if (!fInputClusterStore)
+ {
+ AliError("Could not get clusterStore");
+ return 3;
+ }
+ AliDebug(1,Form("Created %s from cluster tree",fInputClusterStore->ClassName()));
+ }
+
+ if ( !fClusterServer && fIsOwnerOfClusterServer )
+ {
+ if ( !fClusterServer )
+ {
+ fClusterServer = new AliMUONLegacyClusterServer(*fkTransformer,fInputClusterStore,
+ GetRecoParam()->BypassSt4(),
+ GetRecoParam()->BypassSt5());
+ SetupClusterServer(*fClusterServer);
+ }
+ }
+
+ fInputClusterStore->Clear();
+ fInputClusterStore->Connect(*clustersTree,kFALSE);
+ fTriggerStore->Clear();
+ fTriggerStore->Connect(*clustersTree,kFALSE);
+
+ clustersTree->GetEvent(0);
+
+ return 0;
}
//_____________________________________________________________________________
-Int_t AliMUONTracker::Clusters2Tracks(AliESD* /*esd*/)
+Int_t AliMUONTracker::Clusters2Tracks(AliESDEvent* esd)
{
+ /// Performs the tracking and store the resulting tracks in the ESD
+ ///
+ /// note that we're dealing with two cluster stores here : fInputClusterStore
+ /// and ClusterStore().
+ /// The first one is read from the TreeR and may be used by the cluster server
+ /// (that's the case for the legacy cluster server) to fill the other one.
+ /// The second one is more dynamic and might be created on the fly by the cluster
+ /// server (used by the combined tracking, in which case the first one is not used
+ /// at all).
+
+ AliCodeTimerAuto("",0)
+
+ if (!fTrackReco)
+ {
+ fTrackReco = CreateTrackReconstructor(GetRecoParam(),fClusterServer);
+ fInternalTrackStore = new AliMUONTrackStoreV1;
+ }
+
+ // if the required tracking mode does not exist
+ if (!fTrackReco) return 1;
+
+ if ( ! ClusterStore() )
+ {
+ AliError("ClusterStore is NULL");
+ return 2;
+ }
+
+ if (!fTriggerStore) {
+ AliError("TriggerStore is NULL");
+ return 3;
+ }
+
+ // Make trigger tracks
+ if ( fkTriggerCircuit )
+ {
+ TriggerTrackStore()->Clear();
+ fTrackReco->EventReconstructTrigger(*fkTriggerCircuit,*fTriggerStore,*(TriggerTrackStore()));
+ }
+
+ if ( TriggerTrackStore()->GetSize() > GetRecoParam()->GetMaxTriggerTracks() )
+ {
+ // cut to reject shower events
+
+ AliCodeTimerAuto("MUON Shower events",1);
- /// clusters2Tracks method
- /// in general tracking framework
-
- // open TClonesArray for reading
- fMUONData->SetTreeAddress("TC,RC");
-
- // open for writing
- // trigger branch
- fMUONData->MakeBranch("RL"); //trigger track
- fMUONData->SetTreeAddress("RL");
- fTrackReco->EventReconstructTrigger();
- fMUONData->Fill("RL");
-
- // tracking branch
- fMUONData->MakeBranch("RT"); //track
- fMUONData->SetTreeAddress("RT");
- fTrackReco->EventReconstruct();
- fMUONData->Fill("RT");
-
- fMUONData->ResetRecTracks();
- fMUONData->ResetRecTriggerTracks();
-
-
- return kTRUE;
+ AliWarning(Form("Probably got a shower event (%d trigger tracks). Will not reconstruct tracks.",
+ TriggerTrackStore()->GetSize()));
+
+ return 0;
+ }
+
+ fTrackReco->EventReconstruct(*(ClusterStore()),*fInternalTrackStore);
+
+ // Match tracker/trigger tracks
+ if ( fTrackHitPatternMaker )
+ {
+ fTrackReco->ValidateTracksWithTrigger(*fInternalTrackStore,*(TriggerTrackStore()),*fTriggerStore,*fTrackHitPatternMaker);
+ }
+
+ // Fill ESD
+ FillESD(*fInternalTrackStore,esd);
+
+ fInternalTrackStore->Clear();
+ ClusterStore()->Clear();
+
+ return 0;
}
+
+//_____________________________________________________________________________
+void AliMUONTracker::FillESD(const AliMUONVTrackStore& trackStore, AliESDEvent* esd) const
+{
+ /// Fill the ESD from the trackStore
+ AliDebug(1,"");
+ AliCodeTimerAuto("",0)
+
+ // get ITS vertex
+ Double_t vertex[3] = {0., 0., 0.};
+ const AliESDVertex* esdVert = esd->GetVertex();
+ if (esdVert->GetNContributors() > 0 || !strcmp(esdVert->GetTitle(),"vertexer: smearMC")) {
+ esdVert->GetXYZ(vertex);
+ AliDebug(1,Form("found vertex (%e,%e,%e)",vertex[0],vertex[1],vertex[2]));
+ }
+
+ // fill ESD event including all info in ESD cluster if required and only for the given fraction of events
+ AliMUONTrack* track;
+ AliMUONLocalTrigger* locTrg;
+ TIter next(trackStore.CreateIterator());
+ if (GetRecoParam()->SaveFullClusterInESD() &&
+ gRandom->Uniform(100.) <= GetRecoParam()->GetPercentOfFullClusterInESD()) {
+
+ while ( ( track = static_cast<AliMUONTrack*>(next()) ) ) {
+
+ if (track->GetMatchTrigger() > 0) {
+ locTrg = static_cast<AliMUONLocalTrigger*>(fTriggerStore->FindLocal(track->LoCircuit()));
+ AliMUONESDInterface::MUONToESD(*track, *esd, vertex, &fkDigitStore, locTrg);
+ } else AliMUONESDInterface::MUONToESD(*track, *esd, vertex, &fkDigitStore);
+
+ }
+
+ } else {
+
+ while ( ( track = static_cast<AliMUONTrack*>(next()) ) ) {
+
+ if (track->GetMatchTrigger() > 0) {
+ locTrg = static_cast<AliMUONLocalTrigger*>(fTriggerStore->FindLocal(track->LoCircuit()));
+ AliMUONESDInterface::MUONToESD(*track, *esd, vertex, 0x0, locTrg);
+ } else AliMUONESDInterface::MUONToESD(*track, *esd, vertex);
+
+ }
+
+ }
+
+ // fill the local trigger decisions not matched with tracks (associate them to "ghost" tracks)
+ UInt_t ghostId = 0xFFFFFFFF - 1;
+ Bool_t matched = kFALSE;
+ AliMUONTriggerTrack *triggerTrack;
+ TIter itTriggerTrack(fTriggerTrackStore->CreateIterator());
+ while ( ( triggerTrack = static_cast<AliMUONTriggerTrack*>(itTriggerTrack()) ) ) {
+
+ locTrg = static_cast<AliMUONLocalTrigger*>(fTriggerStore->FindLocal(triggerTrack->GetLoTrgNum()));
+
+ // check if this local trigger has already been matched
+ TIter itTrack(trackStore.CreateIterator());
+ while ( ( track = static_cast<AliMUONTrack*>(itTrack()) ) ) {
+ matched = (track->LoCircuit() == locTrg->LoCircuit());
+ if (matched) break;
+ }
+ if (matched) continue;
+
+ AliMUONESDInterface::MUONToESD(*locTrg, *esd, ghostId, triggerTrack);
+
+ ghostId -= 1;
+ }
+
+}
+
+//_____________________________________________________________________________
+AliMUONVTrackReconstructor* AliMUONTracker::CreateTrackReconstructor(const AliMUONRecoParam* recoParam, AliMUONVClusterServer* clusterServer)
+{
+ /// Create track reconstructor, depending on tracking mode set in RecoParam
+
+ AliMUONVTrackReconstructor* trackReco(0x0);
+
+ TString opt(recoParam->GetTrackingMode());
+ opt.ToUpper();
+
+ if (strstr(opt,"ORIGINAL"))
+ {
+ trackReco = new AliMUONTrackReconstructor(recoParam,clusterServer);
+ }
+ else if (strstr(opt,"KALMAN"))
+ {
+ trackReco = new AliMUONTrackReconstructorK(recoParam,clusterServer);
+ }
+ else
+ {
+ AliErrorClass(Form("tracking mode \"%s\" does not exist",opt.Data()));
+ return 0x0;
+ }
+
+ AliDebugClass(1,Form("Will use %s for tracking",trackReco->ClassName()));
+
+ return trackReco;
+}
+
+//_____________________________________________________________________________
+void AliMUONTracker::UnloadClusters()
+{
+ /// Clear internal clusterStore
+
+ fInputClusterStore->Clear();
+}
+
+
+//_____________________________________________________________________________
+void
+AliMUONTracker::SetupClusterServer(AliMUONVClusterServer& clusterServer)
+{
+ /// Setup the cluster server
+
+ if ( GetRecoParam()->BypassSt4() ||
+ GetRecoParam()->BypassSt5() )
+ {
+ Bool_t ok = clusterServer.UseTriggerTrackStore(TriggerTrackStore());
+
+ TString msg1;
+ TString msg2;
+
+ if ( GetRecoParam()->BypassSt45() )
+ {
+ msg1 = "STATIONS 4 AND 5";
+ msg2 = "THOSE TWO STATIONS";
+ }
+ else if ( GetRecoParam()->BypassSt4() )
+ {
+ msg1 = "STATION 4";
+ msg2 = "THAT STATION";
+ }
+ else if ( GetRecoParam()->BypassSt5() )
+ {
+ msg1 = "STATION 5";
+ msg2 = "THAT STATION";
+ }
+
+ if ( ok )
+ {
+ AliWarning(Form("WILL USE TRIGGER TRACKS TO GENERATE CLUSTERS IN %s, "
+ "THUS BYPASSING REAL CLUSTERS IN %s!!!",msg1.Data(),msg2.Data()));
+ }
+ else
+ {
+ AliWarning("BYPASSING OF ST4 AND/OR 5 REQUESTED, BUT CLUSTERSERVER DOES NOT SEEM TO SUPPORT IT !!!");
+ }
+ }
+}
+
+
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