// Reset array of tracks
ResetTracks();
- // Look for candidates from clusters in stations(1..) 4 and 5
- MakeTrackCandidates(clusterStore);
+ // Look for candidates from clusters in stations(1..) 4 and 5 (abort in case of failure)
+ if (!MakeTrackCandidates(clusterStore)) return;
- // Look for extra candidates from clusters in stations(1..) 4 and 5
- if (GetRecoParam()->MakeMoreTrackCandidates()) MakeMoreTrackCandidates(clusterStore);
+ // Look for extra candidates from clusters in stations(1..) 4 and 5 (abort in case of failure)
+ if (GetRecoParam()->MakeMoreTrackCandidates()) {
+ if (!MakeMoreTrackCandidates(clusterStore)) return;
+ }
// Stop tracking if no candidate found
if (fRecTracksPtr->GetEntriesFast() == 0) return;
- // Follow tracks in stations(1..) 3, 2 and 1
- FollowTracks(clusterStore);
+ // Follow tracks in stations(1..) 3, 2 and 1 (abort in case of failure)
+ if (!FollowTracks(clusterStore)) return;
// Complement the reconstructed tracks
- if (GetRecoParam()->ComplementTracks()) ComplementTracks(clusterStore);
+ if (GetRecoParam()->ComplementTracks()) {
+ if (ComplementTracks(clusterStore)) RemoveIdenticalTracks();
+ }
// Improve the reconstructed tracks
if (GetRecoParam()->ImproveTracks()) ImproveTracks();
return segments;
}
+ //__________________________________________________________________________
+void AliMUONVTrackReconstructor::RemoveUsedSegments(TClonesArray& segments)
+{
+ /// To remove pairs of clusters already attached to a track
+ AliDebug(1,"Enter RemoveUsedSegments");
+ Int_t nSegments = segments.GetEntriesFast();
+ Int_t nTracks = fRecTracksPtr->GetEntriesFast();
+ AliMUONObjectPair *segment;
+ AliMUONTrack *track;
+ AliMUONVCluster *cluster, *cluster1, *cluster2;
+ Bool_t foundCluster1, foundCluster2, removeSegment;
+
+ // Loop over segments
+ for (Int_t iSegment=0; iSegment<nSegments; iSegment++) {
+ segment = (AliMUONObjectPair*) segments.UncheckedAt(iSegment);
+
+ cluster1 = (AliMUONVCluster*) segment->First();
+ cluster2 = (AliMUONVCluster*) segment->Second();
+ removeSegment = kFALSE;
+
+ // Loop over tracks
+ for (Int_t iTrack = 0; iTrack < nTracks; iTrack++) {
+ track = (AliMUONTrack*) fRecTracksPtr->UncheckedAt(iTrack);
+
+ // skip empty slot
+ if (!track) continue;
+
+ foundCluster1 = kFALSE;
+ foundCluster2 = kFALSE;
+
+ // Loop over clusters
+ Int_t nClusters = track->GetNClusters();
+ for (Int_t iCluster = 0; iCluster < nClusters; iCluster++) {
+ cluster = ((AliMUONTrackParam*) track->GetTrackParamAtCluster()->UncheckedAt(iCluster))->GetClusterPtr();
+
+ // check if both clusters are in that track
+ if (cluster == cluster1) foundCluster1 = kTRUE;
+ else if (cluster == cluster2) foundCluster2 = kTRUE;
+
+ if (foundCluster1 && foundCluster2) {
+ removeSegment = kTRUE;
+ break;
+ }
+
+ }
+
+ if (removeSegment) break;
+
+ }
+
+ if (removeSegment) segments.RemoveAt(iSegment);
+
+ }
+
+ segments.Compress();
+
+ // Printout for debug
+ AliDebug(1,Form("NSegments = %d ", segments.GetEntriesFast()));
+}
+
//__________________________________________________________________________
void AliMUONVTrackReconstructor::RemoveIdenticalTracks()
{
/// To remove identical tracks:
/// Tracks are considered identical if they have all their clusters in common.
/// One keeps the track with the larger number of clusters if need be
- AliMUONTrack *track1, *track2, *trackToRemove;
+ AliMUONTrack *track1, *track2;
+ Int_t nTracks = fRecTracksPtr->GetEntriesFast();
Int_t clustersInCommon, nClusters1, nClusters2;
- Bool_t removedTrack1;
// Loop over first track of the pair
- track1 = (AliMUONTrack*) fRecTracksPtr->First();
- while (track1) {
- removedTrack1 = kFALSE;
+ for (Int_t iTrack1 = 0; iTrack1 < nTracks; iTrack1++) {
+ track1 = (AliMUONTrack*) fRecTracksPtr->UncheckedAt(iTrack1);
+ // skip empty slot
+ if (!track1) continue;
nClusters1 = track1->GetNClusters();
// Loop over second track of the pair
- track2 = (AliMUONTrack*) fRecTracksPtr->After(track1);
- while (track2) {
+ for (Int_t iTrack2 = iTrack1+1; iTrack2 < nTracks; iTrack2++) {
+ track2 = (AliMUONTrack*) fRecTracksPtr->UncheckedAt(iTrack2);
+ // skip empty slot
+ if (!track2) continue;
nClusters2 = track2->GetNClusters();
// number of clusters in common between two tracks
clustersInCommon = track1->ClustersInCommon(track2);
// decide which track to remove
if (nClusters2 > nClusters1) {
// remove track1 and continue the first loop with the track next to track1
- trackToRemove = track1;
- track1 = (AliMUONTrack*) fRecTracksPtr->After(track1);
- fRecTracksPtr->Remove(trackToRemove);
- fRecTracksPtr->Compress(); // this is essential to retrieve the TClonesArray afterwards
+ fRecTracksPtr->RemoveAt(iTrack1);
fNRecTracks--;
- removedTrack1 = kTRUE;
break;
} else {
// remove track2 and continue the second loop with the track next to track2
- trackToRemove = track2;
- track2 = (AliMUONTrack*) fRecTracksPtr->After(track2);
- fRecTracksPtr->Remove(trackToRemove);
- fRecTracksPtr->Compress(); // this is essential to retrieve the TClonesArray afterwards
+ fRecTracksPtr->RemoveAt(iTrack2);
fNRecTracks--;
}
- } else track2 = (AliMUONTrack*) fRecTracksPtr->After(track2);
+ }
} // track2
- if (removedTrack1) continue;
- track1 = (AliMUONTrack*) fRecTracksPtr->After(track1);
} // track1
- return;
+ fRecTracksPtr->Compress(); // this is essential to retrieve the TClonesArray afterwards
}
//__________________________________________________________________________
/// which has the smaller number of clusters are in common with the other track.
/// Among two identical tracks, one keeps the track with the larger number of clusters
/// or, if these numbers are equal, the track with the minimum chi2.
- AliMUONTrack *track1, *track2, *trackToRemove;
- Int_t clustersInCommon, nClusters1, nClusters2;
- Bool_t removedTrack1;
+ AliMUONTrack *track1, *track2;
+ Int_t nTracks = fRecTracksPtr->GetEntriesFast();
+ Int_t clustersInCommon2, nClusters1, nClusters2;
// Loop over first track of the pair
- track1 = (AliMUONTrack*) fRecTracksPtr->First();
- while (track1) {
- removedTrack1 = kFALSE;
+ for (Int_t iTrack1 = 0; iTrack1 < nTracks; iTrack1++) {
+ track1 = (AliMUONTrack*) fRecTracksPtr->UncheckedAt(iTrack1);
+ // skip empty slot
+ if (!track1) continue;
nClusters1 = track1->GetNClusters();
// Loop over second track of the pair
- track2 = (AliMUONTrack*) fRecTracksPtr->After(track1);
- while (track2) {
+ for (Int_t iTrack2 = iTrack1+1; iTrack2 < nTracks; iTrack2++) {
+ track2 = (AliMUONTrack*) fRecTracksPtr->UncheckedAt(iTrack2);
+ // skip empty slot
+ if (!track2) continue;
nClusters2 = track2->GetNClusters();
// number of clusters in common between two tracks
- clustersInCommon = track1->ClustersInCommon(track2);
+ clustersInCommon2 = 2 * track1->ClustersInCommon(track2);
// check for identical tracks
- if (((nClusters1 < nClusters2) && (2 * clustersInCommon > nClusters1)) || (2 * clustersInCommon > nClusters2)) {
+ if (clustersInCommon2 > nClusters1 || clustersInCommon2 > nClusters2) {
// decide which track to remove
if ((nClusters1 > nClusters2) || ((nClusters1 == nClusters2) && (track1->GetGlobalChi2() <= track2->GetGlobalChi2()))) {
// remove track2 and continue the second loop with the track next to track2
- trackToRemove = track2;
- track2 = (AliMUONTrack*) fRecTracksPtr->After(track2);
- fRecTracksPtr->Remove(trackToRemove);
- fRecTracksPtr->Compress(); // this is essential to retrieve the TClonesArray afterwards
+ fRecTracksPtr->RemoveAt(iTrack2);
fNRecTracks--;
} else {
// else remove track1 and continue the first loop with the track next to track1
- trackToRemove = track1;
- track1 = (AliMUONTrack*) fRecTracksPtr->After(track1);
- fRecTracksPtr->Remove(trackToRemove);
- fRecTracksPtr->Compress(); // this is essential to retrieve the TClonesArray afterwards
+ fRecTracksPtr->RemoveAt(iTrack1);
fNRecTracks--;
- removedTrack1 = kTRUE;
break;
}
- } else track2 = (AliMUONTrack*) fRecTracksPtr->After(track2);
+ }
} // track2
- if (removedTrack1) continue;
- track1 = (AliMUONTrack*) fRecTracksPtr->After(track1);
} // track1
- return;
+ fRecTracksPtr->Compress(); // this is essential to retrieve the TClonesArray afterwards
}
//__________________________________________________________________________
while (track2) {
nClusters2 = track2->GetNClusters();
// number of clusters in common between two tracks
- clustersInCommon = track1->ClustersInCommon(track2, inSt345);
+ if (inSt345) clustersInCommon = track1->ClustersInCommonInSt345(track2);
+ else clustersInCommon = track1->ClustersInCommon(track2);
// check for identical tracks
if (clustersInCommon > 0) {
// decide which track to remove
extrapTrackParamAtCluster.SetRemovable(kFALSE);
else extrapTrackParamAtCluster.SetRemovable(kTRUE);
newTrack->AddTrackParamAtCluster(extrapTrackParamAtCluster,*cluster);
+ newTrack->SetGlobalChi2(trackCandidate.GetGlobalChi2()+chi2WithOneCluster);
fNRecTracks++;
// Printout for debuging
bestTrackParamAtCluster.SetRemovable(kFALSE);
else bestTrackParamAtCluster.SetRemovable(kTRUE);
trackCandidate.AddTrackParamAtCluster(bestTrackParamAtCluster,*(bestTrackParamAtCluster.GetClusterPtr()));
+ trackCandidate.SetGlobalChi2(trackCandidate.GetGlobalChi2()+bestChi2WithOneCluster);
// Printout for debuging
if ((AliLog::GetDebugLevel("MUON","AliMUONVTrackReconstructor") >= 1) || (AliLog::GetGlobalDebugLevel() >= 1)) {
newTrack->AddTrackParamAtCluster(extrapTrackParamAtCluster1,*clusterCh1);
extrapTrackParamAtCluster2.SetRemovable(kTRUE);
newTrack->AddTrackParamAtCluster(extrapTrackParamAtCluster2,*clusterCh2);
+ newTrack->SetGlobalChi2(newTrack->GetGlobalChi2()+chi2WithTwoClusters);
fNRecTracks++;
// Tag clusterCh1 as used
extrapTrackParamAtCluster2.SetRemovable(kFALSE);
else extrapTrackParamAtCluster2.SetRemovable(kTRUE);
newTrack->AddTrackParamAtCluster(extrapTrackParamAtCluster2,*clusterCh2);
+ newTrack->SetGlobalChi2(newTrack->GetGlobalChi2()+chi2WithOneCluster);
fNRecTracks++;
// Printout for debuging
extrapTrackParamAtCluster1.SetRemovable(kFALSE);
else extrapTrackParamAtCluster1.SetRemovable(kTRUE);
newTrack->AddTrackParamAtCluster(extrapTrackParamAtCluster1,*clusterCh1);
+ newTrack->SetGlobalChi2(newTrack->GetGlobalChi2()+chi2WithOneCluster);
fNRecTracks++;
// Printout for debuging
trackCandidate.AddTrackParamAtCluster(bestTrackParamAtCluster1,*(bestTrackParamAtCluster1.GetClusterPtr()));
bestTrackParamAtCluster2.SetRemovable(kTRUE);
trackCandidate.AddTrackParamAtCluster(bestTrackParamAtCluster2,*(bestTrackParamAtCluster2.GetClusterPtr()));
+ trackCandidate.SetGlobalChi2(trackCandidate.GetGlobalChi2()+bestChi2WithTwoClusters);
// Printout for debuging
if ((AliLog::GetDebugLevel("MUON","AliMUONVTrackReconstructor") >= 1) || (AliLog::GetGlobalDebugLevel() >= 1)) {
bestTrackParamAtCluster1.SetRemovable(kFALSE);
else bestTrackParamAtCluster1.SetRemovable(kTRUE);
trackCandidate.AddTrackParamAtCluster(bestTrackParamAtCluster1,*(bestTrackParamAtCluster1.GetClusterPtr()));
+ trackCandidate.SetGlobalChi2(trackCandidate.GetGlobalChi2()+bestChi2WithOneCluster);
// Printout for debuging
if ((AliLog::GetDebugLevel("MUON","AliMUONVTrackReconstructor") >= 1) || (AliLog::GetGlobalDebugLevel() >= 1)) {
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff