]> git.uio.no Git - u/mrichter/AliRoot.git/blobdiff - TRD/AliTRDtrackerV1.cxx
Compilation with Root6: TH1::GetXaxis returns now const TAxis*
[u/mrichter/AliRoot.git] / TRD / AliTRDtrackerV1.cxx
index 45b812697aa4187e50da80487e79cc9bee65f4fb..cca2e272c60cdff952b2577fc3d13ea8ca7fa72c 100644 (file)
@@ -77,7 +77,7 @@ TLinearFitter* AliTRDtrackerV1::fgTiltedRieman = NULL;
 TLinearFitter* AliTRDtrackerV1::fgTiltedRiemanConstrained = NULL;
 
 //____________________________________________________________________
-AliTRDtrackerV1::AliTRDtrackerV1(AliTRDReconstructor *rec) 
+AliTRDtrackerV1::AliTRDtrackerV1(const AliTRDReconstructor *rec) 
   :AliTracker()
   ,fkReconstructor(NULL)
   ,fkRecoParam(NULL)
@@ -133,7 +133,7 @@ AliTRDtrackerV1::~AliTRDtrackerV1()
   //
   // Destructor
   //
-  
+
   if(fgRieman) delete fgRieman; fgRieman = NULL;
   if(fgTiltedRieman) delete fgTiltedRieman; fgTiltedRieman = NULL;
   if(fgTiltedRiemanConstrained) delete fgTiltedRiemanConstrained; fgTiltedRiemanConstrained = NULL;
@@ -141,7 +141,8 @@ AliTRDtrackerV1::~AliTRDtrackerV1()
   if(fTracksESD){ fTracksESD->Delete(); delete fTracksESD; }
   if(fTracks) {fTracks->Delete(); delete fTracks;}
   if(fTracklets) {fTracklets->Delete(); delete fTracklets;}
-  if(fClusters) {
+  if(IsClustersOwner() && fClusters) {
+    AliInfo(Form("tracker[%p] removing %d own clusters @ %p", (void*)this, fClusters->GetEntries(), (void*)fClusters));
     fClusters->Delete(); delete fClusters;
   }
   if(fGeom) delete fGeom;
@@ -314,8 +315,21 @@ Int_t AliTRDtrackerV1::PropagateBack(AliESDEvent *event)
   
     // Check the seed status
     ULong_t status = seed->GetStatus();
-    if ((status & AliESDtrack::kTPCout) == 0) continue;
     if ((status & AliESDtrack::kTRDout) != 0) continue;
+    if ((status & AliESDtrack::kTPCout)){
+      AliDebug(3, Form("Prolongate seed[%2d] which is TPC.", iSeed));
+      // set steering parameters for TPC
+      //fkRecoParam->SetTrackParam(kTPC);
+/*    } else {
+      if ((status & AliESDtrack::kITSout)){
+        AliDebug(3, Form("Prolongate seed[%2d] which is ITS.", iSeed));
+        // set steering parameters for ITS
+        //fkRecoParam->SetTrackParam(kITS);
+        // rotate
+        Float_t  globalToTracking = AliTRDgeometry::GetAlpha()*(Int_t(seed->GetAlpha()/AliTRDgeometry::GetAlpha()) + (seed->GetAlpha()>0. ? 0.5 : -0.5));
+        if(!seed->Rotate(globalToTracking)) continue;
+      } else continue;*/
+    } else continue;
 
     // Propagate to the entrance in the TRD mother volume
     track.~AliTRDtrackV1();
@@ -351,16 +365,16 @@ Int_t AliTRDtrackerV1::PropagateBack(AliESDEvent *event)
     if (expectedClr<0){      
       seed->UpdateTrackParams(&track, AliESDtrack::kTRDStop);
       continue;
-    }
-
-    if(expectedClr){
+    } else {
       nFound++;  
-      // computes PID for track
+      // compute PID
       track.CookPID();
+      //compute MC label
+      track.CookLabel(1. - AliTRDReconstructor::GetLabelFraction());
       // update calibration references using this track
       if(calibra->GetHisto2d()) calibra->UpdateHistogramsV1(&track);
       // save calibration object
-      if (fkRecoParam->GetStreamLevel(AliTRDrecoParam::kTracker) > 0) { 
+      if (fkRecoParam->GetStreamLevel(AliTRDrecoParam::kTracker) > 0 || AliTRDReconstructor::GetStreamLevel()>0 ) { 
         AliTRDtrackV1 *calibTrack = new AliTRDtrackV1(track);
         calibTrack->SetOwner();
         seed->AddCalibObject(calibTrack);
@@ -370,12 +384,10 @@ Int_t AliTRDtrackerV1::PropagateBack(AliESDEvent *event)
       track.UpdateESDtrack(seed);
     }
 
-    if ((TMath::Abs(track.GetC(track.GetBz()) - p4) / TMath::Abs(p4) < 0.2) ||(track.Pt() > 0.8)) {
-
-      // Make backup for back propagation
+    // Make backup for back propagation
+    if ((TMath::Abs(track.GetC(track.GetBz()) - p4) / TMath::Abs(p4) < 0.2) || (track.Pt() > 0.8)) {
       Int_t foundClr = track.GetNumberOfClusters();
       if (foundClr >= foundMin) {
-        track.CookLabel(1. - AliTRDReconstructor::GetLabelFraction());
         //if(track.GetBackupTrack()) UseClusters(track.GetBackupTrack());
 
         // Sign only gold tracks
@@ -504,7 +516,7 @@ Int_t AliTRDtrackerV1::RefitInward(AliESDEvent *event)
     Double_t xTPC = 250.0;
     if(FollowProlongation(track)){     
       // Update the friend track
-      if (fkRecoParam->GetStreamLevel(AliTRDrecoParam::kTracker) > 0){ 
+      if (fkRecoParam->GetStreamLevel(AliTRDrecoParam::kTracker) > 0  || AliTRDReconstructor::GetStreamLevel()>0 ){ 
         TObject *o = NULL; Int_t ic = 0;
         AliTRDtrackV1 *calibTrack = NULL; 
         while((o = seed->GetCalibObject(ic++))){
@@ -612,7 +624,34 @@ Int_t AliTRDtrackerV1::FollowProlongation(AliTRDtrackV1 &t)
     Double_t cov[3]; tracklet->GetCovAt(x, cov);
     Double_t p[2] = { tracklet->GetY(), tracklet->GetZ()};
     Double_t chi2 = ((AliExternalTrackParam)t).GetPredictedChi2(p, cov);
-    if (chi2 < 1e+10 && ((AliExternalTrackParam&)t).Update(p, cov)){ 
+
+    if(fkReconstructor->IsDebugStreaming()){
+      Int_t eventNumber = AliTRDtrackerDebug::GetEventNumber();
+      TTreeSRedirector &cstreamer = *fkReconstructor->GetDebugStream(AliTRDrecoParam::kTracker);
+      AliExternalTrackParam param0(t);
+      AliExternalTrackParam param1(t);
+      param1.Update(p, cov);
+      TVectorD vcov(3,cov);
+      TVectorD vpar(3,p);
+      cstreamer << "FollowProlongationInfo"
+               << "EventNumber="       << eventNumber
+               << "iplane="<<iplane
+               << "vcov.="<<&vcov
+               << "vpar.="<<&vpar
+               << "tracklet.="      << tracklet
+               << "chi2="<< chi2 
+               << "param0.="           << &param0
+               << "param1.="           << &param1
+               << "\n";
+    }
+    /*
+    AliInfo(Form("Pl:%d X:%+e : %+e P: %+e %+e Cov:%+e %+e %+e -> dXY: %+e %+e | chi2:%.2f pT:%.2f alp:%.3f",
+                iplane,x,t.GetX(),p[0],p[1],cov[0],cov[1],cov[2],
+                p[0]-t.GetY(),p[1]-t.GetZ(),
+                chi2,t.Pt()*t.Charge(),t.GetAlpha()));
+    */
+    if (chi2 < fkRecoParam->GetChi2Cut() && ((AliExternalTrackParam&)t).Update(p, cov)){  // MI parameterizad chi2 cut 03.05.2014
+      //    if (chi2 < 1e+10 && ((AliExternalTrackParam&)t).Update(p, cov)){ 
       // Register info to track
       t.SetNumberOfClusters();
       t.UpdateChi2(chi2);
@@ -620,7 +659,7 @@ Int_t AliTRDtrackerV1::FollowProlongation(AliTRDtrackV1 &t)
     }
   }
 
-  if(fkRecoParam->GetStreamLevel(AliTRDrecoParam::kTracker) > 1){
+  if(fkRecoParam->GetStreamLevel(AliTRDrecoParam::kTracker) > 1 || AliTRDReconstructor::GetStreamLevel()>1){
     Int_t index;
     for(int iplane=0; iplane<AliTRDgeometry::kNlayer; iplane++){
       AliTRDseedV1 *tracklet = GetTracklet(&t, iplane, index);
@@ -691,6 +730,7 @@ Int_t AliTRDtrackerV1::FollowBackProlongation(AliTRDtrackV1 &t)
   AliTRDtrackingChamber *chamber = NULL;
   
   Int_t debugLevel = fkReconstructor->IsDebugStreaming() ? fkRecoParam->GetStreamLevel(AliTRDrecoParam::kTracker) : 0;
+  if ( AliTRDReconstructor::GetStreamLevel()>0) debugLevel= AliTRDReconstructor::GetStreamLevel();
   TTreeSRedirector *cstreamer = fkReconstructor->IsDebugStreaming() ? fkReconstructor->GetDebugStream(AliTRDrecoParam::kTracker) : 0x0;
 
   Bool_t kStoreIn(kTRUE),     // toggel store track params. at TRD entry
@@ -735,7 +775,7 @@ Int_t AliTRDtrackerV1::FollowBackProlongation(AliTRDtrackV1 &t)
     // rough estimate of the entry point
     if (!t.GetProlongation(fR[ily], y, z)){
       n=-1; 
-      t.SetStatus(AliTRDtrackV1::kProlongation);
+      t.SetErrStat(AliTRDtrackV1::kProlongation);
       AliDebug(4, Form("Failed Rough Prolongation to ly[%d] x[%7.2f] y[%7.2f] z[%7.2f]", ily, fR[ily], y, z));
       break;
     }
@@ -756,23 +796,23 @@ Int_t AliTRDtrackerV1::FollowBackProlongation(AliTRDtrackV1 &t)
       // propagate to the default radial position
       if(fR[ily] > (AliTRDReconstructor::GetMaxStep() + t.GetX()) && !PropagateToX(t, fR[ily], AliTRDReconstructor::GetMaxStep())){
         n=-1; 
-        t.SetStatus(AliTRDtrackV1::kPropagation);
+        t.SetErrStat(AliTRDtrackV1::kPropagation);
         AliDebug(4, "Failed Propagation [Missing Geometry]");
         break;
       }
       if(!AdjustSector(&t)){
         n=-1; 
-        t.SetStatus(AliTRDtrackV1::kAdjustSector);
+        t.SetErrStat(AliTRDtrackV1::kAdjustSector);
         AliDebug(4, "Failed Adjust Sector [Missing Geometry]");
         break;
       }
       if(TMath::Abs(t.GetSnp()) > AliTRDReconstructor::GetMaxSnp()){
         n=-1; 
-        t.SetStatus(AliTRDtrackV1::kSnp);
+        t.SetErrStat(AliTRDtrackV1::kSnp);
         AliDebug(4, "Failed Max Snp [Missing Geometry]");
         break;
       }
-      t.SetStatus(AliTRDtrackV1::kGeometry, ily);
+      t.SetErrStat(AliTRDtrackV1::kGeometry, ily);
       continue;
     }
 
@@ -786,19 +826,19 @@ Int_t AliTRDtrackerV1::FollowBackProlongation(AliTRDtrackV1 &t)
     x = glb[0] - AliTRDReconstructor::GetMaxStep();
     if(x > (AliTRDReconstructor::GetMaxStep() + t.GetX()) && !PropagateToX(t, x, AliTRDReconstructor::GetMaxStep())){
       n=-1; 
-      t.SetStatus(AliTRDtrackV1::kPropagation);
+      t.SetErrStat(AliTRDtrackV1::kPropagation);
       AliDebug(4, Form("Failed Initial Propagation to x[%7.2f]", x));
       break;
     }
     if(!AdjustSector(&t)){
       n=-1; 
-      t.SetStatus(AliTRDtrackV1::kAdjustSector);
+      t.SetErrStat(AliTRDtrackV1::kAdjustSector);
       AliDebug(4, "Failed Adjust Sector Start");
       break;
     }
     if(TMath::Abs(t.GetSnp()) > AliTRDReconstructor::GetMaxSnp()) {
       n=-1; 
-      t.SetStatus(AliTRDtrackV1::kSnp);
+      t.SetErrStat(AliTRDtrackV1::kSnp);
       AliDebug(4, Form("Failed Max Snp[%f] MaxSnp[%f]", t.GetSnp(), AliTRDReconstructor::GetMaxSnp()));
       break;
     }
@@ -814,7 +854,7 @@ Int_t AliTRDtrackerV1::FollowBackProlongation(AliTRDtrackV1 &t)
     if(doRecalculate){
       det = AliTRDgeometry::GetDetector(ily, stk, sm);
       if(!(matrix = fGeom->GetClusterMatrix(det))){ 
-        t.SetStatus(AliTRDtrackV1::kGeometry, ily);
+        t.SetErrStat(AliTRDtrackV1::kGeometry, ily);
         AliDebug(4, Form("Failed Geometry Matrix ly[%d]", ily));
         continue;
       }
@@ -825,39 +865,40 @@ Int_t AliTRDtrackerV1::FollowBackProlongation(AliTRDtrackV1 &t)
     // check if track is well inside fiducial volume 
     if (!t.GetProlongation(x+AliTRDReconstructor::GetMaxStep(), y, z)) {
       n=-1; 
-      t.SetStatus(AliTRDtrackV1::kProlongation);
+      t.SetErrStat(AliTRDtrackV1::kProlongation);
       AliDebug(4, Form("Failed Prolongation to x[%7.2f] y[%7.2f] z[%7.2f]", x+AliTRDReconstructor::GetMaxStep(), y, z));
       break;
     }
     if(fGeom->IsOnBoundary(det, y, z, .5)){ 
-      t.SetStatus(AliTRDtrackV1::kBoundary, ily);
+      t.SetErrStat(AliTRDtrackV1::kBoundary, ily);
       AliDebug(4, "Failed Track on Boundary");
       continue;
     }
 
+    Float_t prod(t.GetBz()*t.Charge());
     ptrTracklet  = tracklets[ily];
     if(!ptrTracklet){ // BUILD TRACKLET
       AliDebug(3, Form("Building tracklet det[%d]", det));
       // check data in supermodule
       if(!fTrSec[sm].GetNChambers()){ 
-        t.SetStatus(AliTRDtrackV1::kNoClusters, ily);
+        t.SetErrStat(AliTRDtrackV1::kNoClusters, ily);
         AliDebug(4, "Failed NoClusters");
         continue;
       }
       if(fTrSec[sm].GetX(ily) < 1.){ 
-        t.SetStatus(AliTRDtrackV1::kNoClusters, ily);
+        t.SetErrStat(AliTRDtrackV1::kNoClusters, ily);
         AliDebug(4, "Failed NoX");
         continue;
       }
       
       // check data in chamber
       if(!(chamber = fTrSec[sm].GetChamber(stk, ily))){ 
-        t.SetStatus(AliTRDtrackV1::kNoClusters, ily);
+        t.SetErrStat(AliTRDtrackV1::kNoClusters, ily);
         AliDebug(4, "Failed No Detector");
         continue;
       }
       if(chamber->GetNClusters() < fgNTimeBins*fkRecoParam ->GetFindableClusters()){ 
-        t.SetStatus(AliTRDtrackV1::kNoClusters, ily);
+        t.SetErrStat(AliTRDtrackV1::kNoClusters, ily);
         AliDebug(4, "Failed Not Enough Clusters in Detector");
         continue;
       }      
@@ -868,19 +909,20 @@ Int_t AliTRDtrackerV1::FollowBackProlongation(AliTRDtrackV1 &t)
       ptrTracklet->SetKink(t.IsKink());
       ptrTracklet->SetPrimary(t.IsPrimary());
       ptrTracklet->SetPadPlane(fGeom->GetPadPlane(ily, stk));
+      //set first approximation of radial position of anode wire corresponding to middle chamber y=0, z=0
+      // the uncertainty is given by the actual position of the tracklet (y,z) and chamber inclination
       ptrTracklet->SetX0(glb[0]+driftLength);
       if(!ptrTracklet->Init(&t)){
         n=-1; 
-        t.SetStatus(AliTRDtrackV1::kTrackletInit);
+        t.SetErrStat(AliTRDtrackV1::kTrackletInit);
         AliDebug(4, "Failed Tracklet Init");
         break;
       }
       // Select attachment base on track to B field sign not only track charge which is buggy
       // mark kFALSE same sign tracks and kTRUE opposite sign tracks
       // A.Bercuci 3.11.2011
-      Float_t prod(t.GetBz()*t.Charge());
       if(!ptrTracklet->AttachClusters(chamber, kTRUE, prod<0.?kTRUE:kFALSE, fEventInFile)){
-        t.SetStatus(AliTRDtrackV1::kNoAttach, ily);
+        t.SetErrStat(AliTRDtrackV1::kNoAttach, ily);
         if(debugLevel>3){
           AliTRDseedV1 trackletCp(*ptrTracklet);
           UChar_t status(t.GetStatusTRD(ily));
@@ -894,7 +936,7 @@ Int_t AliTRDtrackerV1::FollowBackProlongation(AliTRDtrackV1 &t)
       }
       AliDebug(3, Form("Number of Clusters in Tracklet: %d", ptrTracklet->GetN()));
       if(ptrTracklet->GetN() < fgNTimeBins*fkRecoParam->GetFindableClusters()){
-        t.SetStatus(AliTRDtrackV1::kNoClustersTracklet, ily);
+        t.SetErrStat(AliTRDtrackV1::kNoClustersTracklet, ily);
         if(debugLevel>3){
           AliTRDseedV1 trackletCp(*ptrTracklet);
           UChar_t status(t.GetStatusTRD(ily));
@@ -910,40 +952,71 @@ Int_t AliTRDtrackerV1::FollowBackProlongation(AliTRDtrackV1 &t)
     } else AliDebug(2, Form("Use external tracklet ly[%d]", ily));
     // propagate track to the radial position of the tracklet
 
-    // fit tracklet 
+    // fit tracklet in the local chamber coordinate system 
     // tilt correction options
     // 0 : no correction
     // 2 : pseudo tilt correction
-    if(!ptrTracklet->FitRobust(t.Charge()>0?kTRUE:kFALSE)){
-      t.SetStatus(AliTRDtrackV1::kNoFit, ily);
+    if(!ptrTracklet->FitRobust(fGeom->GetPadPlane(ily, stk), matrix, t.GetBz(), t.Charge())){
+      t.SetErrStat(AliTRDtrackV1::kNoFit, ily);
       AliDebug(4, "Failed Tracklet Fit");
       continue;
     } 
+    // Calculate tracklet position in tracking coordinates
+    // A.Bercuci 27.11.2013    
+    ptrTracklet->SetXYZ(matrix);
+
     x = ptrTracklet->GetX(); //GetX0();
     if(x > (AliTRDReconstructor::GetMaxStep() + t.GetX()) && !PropagateToX(t, x, AliTRDReconstructor::GetMaxStep())) {
       n=-1; 
-      t.SetStatus(AliTRDtrackV1::kPropagation);
+      t.SetErrStat(AliTRDtrackV1::kPropagation);
       AliDebug(4, Form("Failed Propagation to Tracklet x[%7.2f]", x));
       break;
     }
     if(!AdjustSector(&t)) {
       n=-1; 
-      t.SetStatus(AliTRDtrackV1::kAdjustSector);
+      t.SetErrStat(AliTRDtrackV1::kAdjustSector);
       AliDebug(4, "Failed Adjust Sector");
       break;
     }
     if(TMath::Abs(t.GetSnp()) > AliTRDReconstructor::GetMaxSnp()) {
       n=-1; 
-      t.SetStatus(AliTRDtrackV1::kSnp);
+      t.SetErrStat(AliTRDtrackV1::kSnp);
       AliDebug(4, Form("Failed Max Snp[%f] MaxSnp[%f]", t.GetSnp(), AliTRDReconstructor::GetMaxSnp()));
       break;
     }
     Double_t cov[3]; ptrTracklet->GetCovAt(x, cov);
     Double_t p[2] = { ptrTracklet->GetY(), ptrTracklet->GetZ()};
     Double_t chi2 = ((AliExternalTrackParam)t).GetPredictedChi2(p, cov);
-    // update Kalman with the TRD measurement
-    if(chi2>1e+10){ // TODO
-      t.SetStatus(AliTRDtrackV1::kChi2, ily);
+    /*
+    AliInfo(Form("Pl:%d X:%+e : %+e P: %+e %+e Cov:%+e %+e %+e -> dXY: %+e %+e | chi2:%.2f pT:%.2f alp:%.3f",
+                ily,x,t.GetX(),p[0],p[1],cov[0],cov[1],cov[2],
+                p[0]-t.GetY(),p[1]-t.GetZ(),
+                chi2,t.Pt()*t.Charge(),t.GetAlpha()));
+    */
+
+     if(fkReconstructor->IsDebugStreaming()){
+      Int_t eventNumber = AliTRDtrackerDebug::GetEventNumber();
+      //      TTreeSRedirector &cstreamer = *fkReconstructor->GetDebugStream(AliTRDrecoParam::kTracker);
+      AliExternalTrackParam param0(t);
+      AliExternalTrackParam param1(t);
+      param1.Update(p, cov);
+      TVectorD vcov(3,cov);
+      TVectorD vpar(3,p);
+      (*cstreamer) << "FollowBackProlongationInfo"
+               << "EventNumber="       << eventNumber
+               << "chi2="<<chi2
+               << "iplane="<<ily
+               << "vcov.="<<&vcov
+               << "vpar.="<<&vpar
+               << "tracklet.="      << ptrTracklet
+               << "param0.="           << &param0
+               << "param1.="           << &param1
+               << "\n";
+     }
+     
+     // update Kalman with the TRD measurement
+     if (chi2> fkRecoParam->GetChi2Cut()){ // MI parameterizad chi2 cut 03.05.2014
+      t.SetErrStat(AliTRDtrackV1::kChi2, ily);
       if(debugLevel > 2){
         UChar_t status(t.GetStatusTRD());
         AliTRDseedV1  trackletCp(*ptrTracklet);
@@ -966,7 +1039,7 @@ Int_t AliTRDtrackerV1::FollowBackProlongation(AliTRDtrackV1 &t)
     if(kUseTRD){
       if(!((AliExternalTrackParam&)t).Update(p, cov)) {
         n=-1; 
-        t.SetStatus(AliTRDtrackV1::kUpdate);
+        t.SetErrStat(AliTRDtrackV1::kUpdate);
         if(debugLevel > 2){
           UChar_t status(t.GetStatusTRD());
           AliTRDseedV1  trackletCp(*ptrTracklet);
@@ -1163,7 +1236,10 @@ Float_t AliTRDtrackerV1::FitTiltedRiemanConstraint(AliTRDseedV1 *tracklets, Doub
   Double_t b = fitter->GetParameter(1);
   Double_t curvature = a/TMath::Sqrt(b*b + 1);
 
-  Float_t chi2track = fitter->GetChisquare()/Double_t(nPoints);
+  Float_t chi2track = 0.0;
+  if (nPoints > 0) {
+    chi2track = fitter->GetChisquare()/Double_t(nPoints);
+  }
   for(Int_t ip = 0; ip < AliTRDtrackerV1::kNPlanes; ip++)
     tracklets[ip].SetC(curvature, 1);
 
@@ -1323,13 +1399,13 @@ Float_t AliTRDtrackerV1::FitTiltedRieman(AliTRDseedV1 *tracklets, Bool_t sigErro
   covarPolZ.Invert();
 
   // Update the tracklets
-  Double_t x1, dy, dz;
+  Double_t dy, dz;
   Double_t cov[15];
   memset(cov, 0, sizeof(Double_t) * 15);
   for(Int_t iLayer = 0; iLayer < AliTRDtrackerV1::kNPlanes; iLayer++) {
 
     x  = tracklets[iLayer].GetX0();
-    x1 = x - xref;
+//    x1 = x - xref;
     y  = 0;
     z  = 0;
     dy = 0;
@@ -1806,7 +1882,7 @@ Int_t AliTRDtrackerV1::PropagateToX(AliTRDtrackV1 &t, Double_t xToGo, Double_t m
 {
   //
   // Starting from current X-position of track <t> this function
-  // extrapolates the track up to radial position <xToGo>. 
+  // extrapolates the track up to radial position <xToGo> in steps of <maxStep>
   // Returns 1 if track reaches the plane, and 0 otherwise 
   //
 
@@ -1852,7 +1928,7 @@ Int_t AliTRDtrackerV1::PropagateToX(AliTRDtrackV1 &t, Double_t xToGo, Double_t m
 
 /*    // Correct for mean material budget
     Double_t dEdx(0.),
-             bg(t.GetP()/mass);
+             bg(TMath::Abs(t.GetP()/mass));
     if(AliLog::GetDebugLevel("TRD", "AliTRDtrackerV1")>=3){
       const char *pn[] = {"rho", "x/X0", "<A>", "<Z>", "L", "<Z/A>", "Nb"};
       printf("D-AliTRDtrackerV1::PropagateTo(): x[%6.2f] bg[%6.2f]\n", xpos, bg);
@@ -1915,12 +1991,14 @@ Bool_t AliTRDtrackerV1::ReadClusters(TTree *clusterTree)
     return kFALSE;
   }
   branch->SetAddress(&clusterArray); 
-  
+
   if(!fClusters){ 
     Float_t nclusters =  fkRecoParam->GetNClusters();
     if(fkReconstructor->IsHLT()) nclusters /= AliTRDgeometry::kNsector;
     fClusters = new TClonesArray("AliTRDcluster", Int_t(nclusters));
     fClusters->SetOwner(kTRUE);
+    SetClustersOwner();
+    AliInfo(Form("Tracker owning clusters @ %p", (void*)fClusters));
   }
   
   // Loop through all entries in the tree
@@ -1954,27 +2032,26 @@ Int_t AliTRDtrackerV1::LoadClusters(TTree *cTree)
   
   fkRecoParam = fkReconstructor->GetRecoParam(); // load reco param for this event
 
-  if(!fkReconstructor->IsWritingClusters()){ 
-    fClusters = AliTRDReconstructor::GetClusters();
+//  if(!fkReconstructor->IsWritingClusters()) AliInfo(Form("IsWritingClusters[%c]", fkReconstructor->IsWritingClusters()?'y':'n'));
+  if(!(fClusters = AliTRDReconstructor::GetClusters())){
+    AliWarning("Clusters unavailable from TRD reconstructor. Trying reading from tree ...");
   } else {
     if(!ReadClusters(cTree)) {
-      AliError("Problem with reading the clusters !");
+      AliError("Reading clusters from tree failed.");
       return 1;
     }
   }
-  SetClustersOwner();
 
   if(!fClusters || !fClusters->GetEntriesFast()){ 
     AliInfo("No TRD clusters");
     return 1;
-  }
+  } else AliInfo(Form("Using :: clusters[%d] onl.tracklets[%d] onl.tracks[%d]",
+    fClusters?fClusters->GetEntriesFast():0,
+    AliTRDReconstructor::GetTracklets()?AliTRDReconstructor::GetTracklets()->GetEntriesFast():0,
+    AliTRDReconstructor::GetTracks()?AliTRDReconstructor::GetTracks()->GetEntriesFast():0));
 
-  //Int_t nin = 
   BuildTrackingContainers();  
 
-  //Int_t ncl  = fClusters->GetEntriesFast();
-  //AliInfo(Form("Clusters %d [%6.2f %% in the active volume]", ncl, 100.*float(nin)/ncl));
-
   return 0;
 }
 
@@ -1988,17 +2065,14 @@ Int_t AliTRDtrackerV1::LoadClusters(TClonesArray * const clusters)
   if(!clusters || !clusters->GetEntriesFast()){ 
     AliInfo("No TRD clusters");
     return 1;
-  }
+  } else AliInfo(Form("Using :: external.clusters[%d]", clusters->GetEntriesFast()));
+
 
   fClusters = clusters;
-  SetClustersOwner();
 
   fkRecoParam = fkReconstructor->GetRecoParam(); // load reco param for this event
   BuildTrackingContainers();  
 
-  //Int_t ncl  = fClusters->GetEntriesFast();
-  //AliInfo(Form("Clusters %d [%6.2f %% in the active volume]", ncl, 100.*float(nin)/ncl));
-
   return 0;
 }
 
@@ -2047,14 +2121,15 @@ void AliTRDtrackerV1::UnloadClusters()
     fTracklets->Delete();
     if(HasRemoveContainers()){delete fTracklets; fTracklets = NULL;}
   }
-  if(fClusters){ 
-    if(IsClustersOwner()) fClusters->Delete();
-    
-    // save clusters array in the reconstructor for further use.
-    if(!fkReconstructor->IsWritingClusters()){
-      AliTRDReconstructor::SetClusters(fClusters);
-      SetClustersOwner(kFALSE);
-    } else AliTRDReconstructor::SetClusters(NULL);
+  if(fClusters && IsClustersOwner()){
+    AliInfo(Form("tracker[%p] clearing %d own clusters @ %p", (void*)this, fClusters->GetEntries(), (void*)fClusters));
+    fClusters->Delete();
+//     
+//     // save clusters array in the reconstructor for further use.
+//     if(!fkReconstructor->IsWritingClusters()){
+//       AliTRDReconstructor::SetClusters(fClusters);
+//       SetClustersOwner(kFALSE);
+//     } else AliTRDReconstructor::SetClusters(NULL);
   }
 
   for (int i = 0; i < AliTRDgeometry::kNsector; i++) fTrSec[i].Clear();
@@ -2109,7 +2184,7 @@ Bool_t AliTRDtrackerV1::AdjustSector(AliTRDtrackV1 *const track)
 
 
 //____________________________________________________________________
-AliTRDseedV1* AliTRDtrackerV1::GetTracklet(AliTRDtrackV1 *const track, Int_t p, Int_t &idx)
+AliTRDseedV1* AliTRDtrackerV1::GetTracklet(const AliTRDtrackV1 *const track, Int_t p, Int_t &idx)
 {
   // Find tracklet for TRD track <track>
   // Parameters
@@ -2221,7 +2296,7 @@ Int_t AliTRDtrackerV1::Clusters2TracksSM(Int_t sector, AliESDEvent *esd)
     Int_t id = esd->AddTrack(esdTrack);
 
     // set ESD id to stand alone TRD tracks
-    if (fkRecoParam->GetStreamLevel(AliTRDrecoParam::kTracker) > 0){ 
+    if (fkRecoParam->GetStreamLevel(AliTRDrecoParam::kTracker) > 0 || AliTRDReconstructor::GetStreamLevel()>0 ){ 
       esdTrack=esd->GetTrack(id);
       TObject *o(NULL); Int_t ic(0);
       AliTRDtrackV1 *calibTrack(NULL); 
@@ -2289,7 +2364,7 @@ Int_t AliTRDtrackerV1::Clusters2TracksStack(AliTRDtrackingChamber **stack, TClon
 
   // Build initial seeding configurations
   Double_t quality = BuildSeedingConfigs(stack, configs);
-  if(fkRecoParam->GetStreamLevel(AliTRDrecoParam::kTracker) > 10){
+  if(fkRecoParam->GetStreamLevel(AliTRDrecoParam::kTracker) > 10  || AliTRDReconstructor::GetStreamLevel()>10){
     AliInfo(Form("Plane config %d %d %d Quality %f"
     , configs[0], configs[1], configs[2], quality));
   }
@@ -2466,7 +2541,7 @@ Int_t AliTRDtrackerV1::Clusters2TracksStack(AliTRDtrackingChamber **stack, TClon
         esdTrack->SetLabel(track->GetLabel());
         track->UpdateESDtrack(esdTrack);
         // write ESD-friends if neccessary
-        if (fkRecoParam->GetStreamLevel(AliTRDrecoParam::kTracker) > 0){
+        if (fkRecoParam->GetStreamLevel(AliTRDrecoParam::kTracker) > 0 || AliTRDReconstructor::GetStreamLevel()>0 ){
           AliTRDtrackV1 *calibTrack = new AliTRDtrackV1(*track);
           calibTrack->SetOwner();
           esdTrack->AddCalibObject(calibTrack);
@@ -2494,7 +2569,7 @@ Int_t AliTRDtrackerV1::Clusters2TracksStack(AliTRDtrackingChamber **stack, TClon
       chamber->Build(fGeom);//Indices(fSieveSeeding);
     }
 
-    if(fkRecoParam->GetStreamLevel(AliTRDrecoParam::kTracker) > 10){ 
+    if(fkRecoParam->GetStreamLevel(AliTRDrecoParam::kTracker) > 10 || AliTRDReconstructor::GetStreamLevel()>10){ 
       AliInfo(Form("Sieve level %d Plane config %d %d %d Quality %f", fSieveSeeding, configs[0], configs[1], configs[2], quality));
     }
   } while(fSieveSeeding<10); // end stack clusters sieve
@@ -2630,7 +2705,7 @@ Int_t AliTRDtrackerV1::MakeSeeds(AliTRDtrackingChamber **stack, AliTRDseedV1 * c
   Double_t chi2[4];
 
   // this should be data member of AliTRDtrack TODO
-  Double_t seedQuality[kMaxTracksStack];
+//  Double_t seedQuality[kMaxTracksStack];
   
   // unpack control parameters
   Int_t config  = ipar[0];
@@ -2735,7 +2810,8 @@ Int_t AliTRDtrackerV1::MakeSeeds(AliTRDtrackingChamber **stack, AliTRDseedV1 * c
         }
       
         Bool_t isFake = kFALSE;
-        if(fkRecoParam->GetStreamLevel(AliTRDrecoParam::kTracker) >= 2 && fkReconstructor->IsDebugStreaming()){
+        if((fkRecoParam->GetStreamLevel(AliTRDrecoParam::kTracker) >= 2 && fkReconstructor->IsDebugStreaming()) 
+          ||AliTRDReconstructor::GetStreamLevel()>=2 ){
           if (c[0]->GetLabel(0) != c[3]->GetLabel(0)) isFake = kTRUE;
           if (c[1]->GetLabel(0) != c[3]->GetLabel(0)) isFake = kTRUE;
           if (c[2]->GetLabel(0) != c[3]->GetLabel(0)) isFake = kTRUE;
@@ -2854,8 +2930,8 @@ Int_t AliTRDtrackerV1::MakeSeeds(AliTRDtrackingChamber **stack, AliTRDseedV1 * c
         }
         //AliInfo(Form("Passed likelihood %f[%e].", TMath::Log(1.E-9 + like), like));
       
-        // book preliminary results
-        seedQuality[ntracks] = like;
+        // book preliminry results
+        //seedQuality[ntracks] = like;
         fSeedLayer[ntracks]  = config;/*sLayer;*/
       
         // attach clusters to the extrapolation seeds
@@ -2878,7 +2954,8 @@ Int_t AliTRDtrackerV1::MakeSeeds(AliTRDtrackingChamber **stack, AliTRDseedV1 * c
       
         // AliInfo("Extrapolation done.");
         // Debug Stream containing all the 6 tracklets
-        if(fkRecoParam->GetStreamLevel(AliTRDrecoParam::kTracker) >= 2 && fkReconstructor->IsDebugStreaming()){
+        if((fkRecoParam->GetStreamLevel(AliTRDrecoParam::kTracker) >= 2 && fkReconstructor->IsDebugStreaming())
+          ||AliTRDReconstructor::GetStreamLevel()>=2){
           TTreeSRedirector &cstreamer = *fkReconstructor->GetDebugStream(AliTRDrecoParam::kTracker);
           TLinearFitter *tiltedRieman = GetTiltedRiemanFitter();
           Int_t eventNumber            = AliTRDtrackerDebug::GetEventNumber();
@@ -2912,7 +2989,8 @@ Int_t AliTRDtrackerV1::MakeSeeds(AliTRDtrackingChamber **stack, AliTRDseedV1 * c
         // calculate track quality
         fTrackQuality[ntracks] = CalculateTrackLikelihood(&chi2Vals[0]);
                   
-        if(fkRecoParam->GetStreamLevel(AliTRDrecoParam::kTracker) >= 2 && fkReconstructor->IsDebugStreaming()){
+        if((fkRecoParam->GetStreamLevel(AliTRDrecoParam::kTracker) >= 2 && fkReconstructor->IsDebugStreaming()) 
+          ||AliTRDReconstructor::GetStreamLevel()>=2){
           TTreeSRedirector &cstreamer = *fkReconstructor->GetDebugStream(AliTRDrecoParam::kTracker);
           Int_t eventNumber = AliTRDtrackerDebug::GetEventNumber();
           Int_t candidateNumber = AliTRDtrackerDebug::GetCandidateNumber();
@@ -3073,7 +3151,8 @@ AliTRDtrackV1* AliTRDtrackerV1::MakeTrack(AliTRDseedV1 * const tracklet)
 
   track.ResetCovariance(1);
   Int_t nc = TMath::Abs(FollowBackProlongation(track));
-  if(fkRecoParam->GetStreamLevel(AliTRDrecoParam::kTracker) > 5 && fkReconstructor->IsDebugStreaming()){
+  if((fkRecoParam->GetStreamLevel(AliTRDrecoParam::kTracker) > 5 && fkReconstructor->IsDebugStreaming()) 
+     ||AliTRDReconstructor::GetStreamLevel()>5){
     Int_t eventNumber          = AliTRDtrackerDebug::GetEventNumber();
     Int_t candidateNumber = AliTRDtrackerDebug::GetCandidateNumber();
     Double_t p[5]; // Track Params for the Debug Stream
@@ -3158,7 +3237,9 @@ Bool_t AliTRDtrackerV1::ImproveSeedQuality(AliTRDtrackingChamber **stack, AliTRD
     lQuality[jLayer] = bseed[jLayer].GetQuality(kTRUE);
     quality    += lQuality[jLayer];
   }
-  quality /= rLayers;
+  if (rLayers > 0) {
+    quality /= rLayers;
+  }
   AliDebug(2, Form("Start N[%d] Q[%f] chi2[%f]", rLayers, quality, chi2));
 
   for (Int_t iter = 0; iter < 4; iter++) {
@@ -3200,7 +3281,8 @@ Bool_t AliTRDtrackerV1::ImproveSeedQuality(AliTRDtrackingChamber **stack, AliTRD
     AliDebug(2, Form("Iter[%d] Q[%f] chi2[%f]", iter, quality, chi2));
 
 
-    if(fkRecoParam->GetStreamLevel(AliTRDrecoParam::kTracker) >= 7 && fkReconstructor->IsDebugStreaming()){
+    if((fkRecoParam->GetStreamLevel(AliTRDrecoParam::kTracker) >= 7 && fkReconstructor->IsDebugStreaming())
+       ||AliTRDReconstructor::GetStreamLevel()>=7){
       Int_t eventNumber                = AliTRDtrackerDebug::GetEventNumber();
       Int_t candidateNumber = AliTRDtrackerDebug::GetCandidateNumber();
       TLinearFitter *tiltedRieman = GetTiltedRiemanFitter();
@@ -3275,7 +3357,8 @@ Double_t AliTRDtrackerV1::CalculateTrackLikelihood(Double_t *chi2){
     , chi2[3], likeChi2Phi
   ));
 
-  if(fkRecoParam->GetStreamLevel(AliTRDrecoParam::kTracker) >= 2 && fkReconstructor->IsDebugStreaming()){
+  if((fkRecoParam->GetStreamLevel(AliTRDrecoParam::kTracker) >= 2 && fkReconstructor->IsDebugStreaming())
+     ||AliTRDReconstructor::GetStreamLevel()>=2){
     Int_t eventNumber = AliTRDtrackerDebug::GetEventNumber();
     Int_t candidateNumber = AliTRDtrackerDebug::GetCandidateNumber();
     TTreeSRedirector &cstreamer = *fkReconstructor->GetDebugStream(AliTRDrecoParam::kTracker);
@@ -3340,7 +3423,8 @@ Double_t AliTRDtrackerV1::CookLikelihood(AliTRDseedV1 *cseed, Int_t planes[4])
   Double_t likeN     = TMath::Exp(-(fkRecoParam->GetNMeanClusters() - nclusters) / fkRecoParam->GetNSigmaClusters());
   Double_t like      = likea * likechi2y * likechi2z * likeN;
 
-  if(fkRecoParam->GetStreamLevel(AliTRDrecoParam::kTracker) >= 2 && fkReconstructor->IsDebugStreaming()){
+  if((fkRecoParam->GetStreamLevel(AliTRDrecoParam::kTracker) >= 2 && fkReconstructor->IsDebugStreaming())
+     ||AliTRDReconstructor::GetStreamLevel()>=2){
     Int_t eventNumber = AliTRDtrackerDebug::GetEventNumber();
     Int_t candidateNumber = AliTRDtrackerDebug::GetCandidateNumber();
     Int_t nTracklets = 0; Float_t meanNcls = 0;
@@ -4085,7 +4169,7 @@ Double_t AliTRDtrackerV1::AliTRDtrackFitterRieman::Eval(){
 }
 
 //_____________________________________________________________________________
-void AliTRDtrackerV1::AliTRDtrackFitterRieman::UpdateFitters(AliTRDseedV1 * const tracklet){
+void AliTRDtrackerV1::AliTRDtrackFitterRieman::UpdateFitters(const AliTRDseedV1 * const tracklet){
   //
   // Does the transformations and updates the fitters
   // The following transformation is applied