]> git.uio.no Git - u/mrichter/AliRoot.git/blobdiff - TPC/AliTPCtrackerMI.cxx
Changed call to TClonesArray::GetEntries() to TClonesArray::GetEntriesFast() for...
[u/mrichter/AliRoot.git] / TPC / AliTPCtrackerMI.cxx
index 9d519cc3945cd031f585db589faf9b6587cda26c..6013fd017ef73db5c417a15087e9f6576e3a9fc5 100644 (file)
 // The debug level -  different procedure produce tree for numerical debugging
 //                    To enable them set AliTPCReconstructor::SetStreamLevel(n); where nis bigger 1
 //
-
+// There are several places in the code which can be numerically debuged
+// This code is keeped in order to enable code development and to check the calibration implementtion
+//
+//      1. ErrParam stream (Log level 9) - dump information about 
+//         1.a) cluster
+//         2.a) cluster error estimate
+//         3.a) cluster shape estimate
+//
+//
 //-------------------------------------------------------
 
 
 #include "AliAlignObj.h"
 #include "AliTrackPointArray.h"
 #include "TRandom.h"
-//#include "AliTPCTransform.h"
+#include "AliTPCcalibDB.h"
+#include "AliTPCTransform.h"
+#include "AliTPCClusterParam.h"
 
 //
 
@@ -232,10 +242,10 @@ Int_t AliTPCtrackerMI::UpdateTrack(AliTPCseed * track, Int_t accept){
 
   Double_t chi2 = track->GetPredictedChi2(track->GetCurrentCluster());
   //
-  track->SetErrorY2(track->GetErrorY2()*1.3);
-  track->SetErrorY2(track->GetErrorY2()+0.01);    
-  track->SetErrorZ2(track->GetErrorZ2()*1.3);   
-  track->SetErrorZ2(track->GetErrorZ2()+0.005);      
+//   track->SetErrorY2(track->GetErrorY2()*1.3);
+//   track->SetErrorY2(track->GetErrorY2()+0.01);    
+//   track->SetErrorZ2(track->GetErrorZ2()*1.3);   
+//   track->SetErrorZ2(track->GetErrorZ2()+0.005);      
     //}
   if (accept>0) return 0;
   if (track->GetNumberOfClusters()%20==0){
@@ -251,16 +261,13 @@ Int_t AliTPCtrackerMI::UpdateTrack(AliTPCseed * track, Int_t accept){
 
 
 
-Int_t AliTPCtrackerMI::AcceptCluster(AliTPCseed * seed, AliTPCclusterMI * cluster, Float_t factor, 
-                                      Float_t cory, Float_t corz)
+Int_t AliTPCtrackerMI::AcceptCluster(AliTPCseed * seed, AliTPCclusterMI * cluster)
 {
   //
   // decide according desired precision to accept given 
   // cluster for tracking
-  Double_t sy2=ErrY2(seed,cluster)*cory;
-  Double_t sz2=ErrZ2(seed,cluster)*corz;
-  //sy2=ErrY2(seed,cluster)*cory;
-  //sz2=ErrZ2(seed,cluster)*cory;
+  Double_t sy2=ErrY2(seed,cluster);
+  Double_t sz2=ErrZ2(seed,cluster);
   
   Double_t sdistancey2 = sy2+seed->GetSigmaY2();
   Double_t sdistancez2 = sz2+seed->GetSigmaZ2();
@@ -273,17 +280,40 @@ Int_t AliTPCtrackerMI::AcceptCluster(AliTPCseed * seed, AliTPCclusterMI * cluste
   Double_t rdistance2  = rdistancey2+rdistancez2;
   //Int_t  accept =0;
   
+  if (AliTPCReconstructor::StreamLevel()>5) {
+    Float_t rmsy2 = seed->GetCurrentSigmaY2();
+    Float_t rmsz2 = seed->GetCurrentSigmaZ2();
+    Float_t rmsy2p30 = seed->GetCMeanSigmaY2p30();
+    Float_t rmsz2p30 = seed->GetCMeanSigmaZ2p30();
+    Float_t rmsy2p30R  = seed->GetCMeanSigmaY2p30R();
+    Float_t rmsz2p30R  = seed->GetCMeanSigmaZ2p30R();
+
+    AliExternalTrackParam param(*seed); 
+    (*fDebugStreamer)<<"ErrParam"<<
+      "Cl.="<<cluster<<
+      "T.="<<&param<<
+      "erry2="<<sy2<<
+      "errz2="<<sz2<<
+      "rmsy2="<<rmsy2<<
+      "rmsz2="<<rmsz2<<        
+      "rmsy2p30="<<rmsy2p30<<
+      "rmsz2p30="<<rmsz2p30<<  
+      "rmsy2p30R="<<rmsy2p30R<<
+      "rmsz2p30R="<<rmsz2p30R<<        
+      "\n";
+  }
+  
   if (rdistance2>16) return 3;
   
   
-  if ((rdistancey2>9.*factor || rdistancez2>9.*factor) && cluster->GetType()==0)  
+  if ((rdistancey2>9. || rdistancez2>9.) && cluster->GetType()==0)  
     return 2;  //suspisiouce - will be changed
   
-  if ((rdistancey2>6.25*factor || rdistancez2>6.25*factor) && cluster->GetType()>0)  
+  if ((rdistancey2>6.25 || rdistancez2>6.25) && cluster->GetType()>0)  
     // strict cut on overlaped cluster
     return  2;  //suspisiouce - will be changed
   
-  if ( (rdistancey2>1.*factor || rdistancez2>6.25*factor ) 
+  if ( (rdistancey2>1. || rdistancez2>6.25 ) 
        && cluster->GetType()<0){
     seed->SetNFoundable(seed->GetNFoundable()-1);
     return 2;    
@@ -393,68 +423,6 @@ AliTPCtrackerMI::~AliTPCtrackerMI() {
   if (fDebugStreamer) delete fDebugStreamer;
 }
 
-void AliTPCtrackerMI::SetIO()
-{
-  //
-  fNewIO   =  kTRUE;
-  fInput   =  AliRunLoader::GetTreeR("TPC", kFALSE,AliConfig::GetDefaultEventFolderName());
-  
-  fOutput  =  AliRunLoader::GetTreeT("TPC", kTRUE,AliConfig::GetDefaultEventFolderName());
-  if (fOutput){
-    AliTPCtrack *iotrack= new AliTPCtrack;
-    fOutput->Branch("tracks","AliTPCtrack",&iotrack,32000,100);
-    delete iotrack;
-  }
-}
-
-
-void AliTPCtrackerMI::SetIO(TTree * input, TTree * output, AliESDEvent * event)
-{
-
-  // set input
-  fNewIO = kFALSE;
-  fInput    = 0;
-  fOutput   = 0;
-  fSeedTree = 0;
-  fTreeDebug =0;
-  fInput = input;
-  if (input==0){
-    return;
-  }  
-  //set output
-  fOutput = output;
-  if (output){
-    AliTPCtrack *iotrack= new AliTPCtrack;
-    //    iotrack->fHelixIn   = new TClonesArray("AliHelix");
-    //iotrack->fHelixOut  = new TClonesArray("AliHelix");    
-    fOutput->Branch("tracks","AliTPCtrack",&iotrack,32000,100);
-    delete iotrack;
-  }
-  if (output && (fDebug&2)){
-    //write the full seed information if specified in debug mode
-    //
-    fSeedTree =  new TTree("Seeds","Seeds");
-    AliTPCseed * vseed = new AliTPCseed;
-    //
-    TClonesArray * arrtr = new TClonesArray("AliTPCTrackPoint",160);
-    arrtr->ExpandCreateFast(160);
-    TClonesArray * arre = new TClonesArray("AliTPCExactPoint",160);
-    //
-    vseed->SetPoints(arrtr);
-    vseed->SetEPoints(arre);
-    //    vseed->fClusterPoints = arrcl;
-    fSeedTree->Branch("seeds","AliTPCseed",&vseed,32000,99);
-    delete arrtr;
-    delete arre;    
-    fTreeDebug = new TTree("trackDebug","trackDebug");
-    TClonesArray * arrd = new TClonesArray("AliTPCTrackPoint2",0);
-    fTreeDebug->Branch("debug",&arrd,32000,99);
-  }
-
-
-  //set ESD event  
-  fEvent  = event;  
-}
 
 void AliTPCtrackerMI::FillESD(TObjArray* arr)
 {
@@ -574,226 +542,154 @@ void AliTPCtrackerMI::FillESD(TObjArray* arr)
   printf("Number of filled ESDs-\t%d\n",fEvent->GetNumberOfTracks());
 }
 
-void AliTPCtrackerMI::WriteTracks(TTree * tree)
-{
-  //
-  // write tracks from seed array to selected tree
-  //
-  fOutput  = tree;
-  if (fOutput){
-    AliTPCtrack *iotrack= new AliTPCtrack;
-    fOutput->Branch("tracks","AliTPCtrack",&iotrack,32000,100);
-  }
-  WriteTracks();
-}
-
-void AliTPCtrackerMI::WriteTracks()
-{
-  //
-  // write tracks to the given output tree -
-  // output specified with SetIO routine
-  if (!fSeeds)  return;
-  if (!fOutput){
-    SetIO();
-  }
-
-  if (fOutput){
-    AliTPCtrack *iotrack= 0;
-    Int_t nseed=fSeeds->GetEntriesFast();
-    //for (Int_t i=0; i<nseed; i++) {
-    //  iotrack= (AliTPCtrack*)fSeeds->UncheckedAt(i);
-    //  if (iotrack) break;      
-    //}    
-    //TBranch * br = fOutput->Branch("tracks","AliTPCtrack",&iotrack,32000,100);
-    TBranch * br = fOutput->GetBranch("tracks");
-    br->SetAddress(&iotrack);
-    //
-    for (Int_t i=0; i<nseed; i++) {
-      AliTPCseed *pt=(AliTPCseed*)fSeeds->UncheckedAt(i);    
-      if (!pt) continue;    
-      AliTPCtrack * track = new AliTPCtrack(*pt);
-      iotrack = track;
-      pt->SetLab2(i); 
-      //      br->SetAddress(&iotrack);
-      fOutput->Fill();
-      delete track;
-      iotrack =0;
-    }
-    //fOutput->GetDirectory()->cd();
-    //fOutput->Write();
-  }
-  // delete iotrack;
-  //
-  if (fSeedTree){
-    //write the full seed information if specified in debug mode
-      
-    AliTPCseed * vseed = new AliTPCseed;
-    //
-    TClonesArray * arrtr = new TClonesArray("AliTPCTrackPoint",160);
-    arrtr->ExpandCreateFast(160);
-    //TClonesArray * arrcl = new TClonesArray("AliTPCclusterMI",160);
-    //arrcl->ExpandCreateFast(160);
-    TClonesArray * arre = new TClonesArray("AliTPCExactPoint",160);
-    //
-    vseed->SetPoints(arrtr);
-    vseed->SetEPoints(arre);
-    //    vseed->fClusterPoints = arrcl;
-    //TBranch * brseed = seedtree->Branch("seeds","AliTPCseed",&vseed,32000,99);
-    TBranch * brseed = fSeedTree->GetBranch("seeds");
-    
-    Int_t nseed=fSeeds->GetEntriesFast();
-    
-    for (Int_t i=0; i<nseed; i++) {
-      AliTPCseed *pt=(AliTPCseed*)fSeeds->UncheckedAt(i);    
-      if (!pt) continue;     
-      pt->SetPoints(arrtr);
-      //      pt->fClusterPoints = arrcl;
-      pt->SetEPoints(arre);
-      pt->RebuildSeed();
-      vseed = pt;
-      brseed->SetAddress(&vseed);
-      fSeedTree->Fill();
-      pt->SetPoints(0);
-      pt->SetEPoints(0);
-      //      pt->fClusterPoints = 0;
-    }
-    fSeedTree->Write();
-    if (fTreeDebug) fTreeDebug->Write();
-  }
 
-}
-  
 
 
 
 Double_t AliTPCtrackerMI::ErrY2(AliTPCseed* seed, AliTPCclusterMI * cl){
   //
   //
-  //seed->SetErrorY2(0.1);
-  //return 0.1;
-  //calculate look-up table at the beginning
-  static Bool_t  ginit = kFALSE;
-  static Float_t gnoise1,gnoise2,gnoise3;
-  static Float_t ggg1[10000];
-  static Float_t ggg2[10000];
-  static Float_t ggg3[10000];
-  static Float_t glandau1[10000];
-  static Float_t glandau2[10000];
-  static Float_t glandau3[10000];
-  //
-  static Float_t gcor01[500];
-  static Float_t gcor02[500];
-  static Float_t gcorp[500];
+  // Use calibrated cluster error from OCDB
   //
-
+  AliTPCClusterParam * clparam = AliTPCcalibDB::Instance()->GetClusterParam();
   //
-  if (ginit==kFALSE){
-    for (Int_t i=1;i<500;i++){
-      Float_t rsigma = float(i)/100.;
-      gcor02[i] = TMath::Max(0.78 +TMath::Exp(7.4*(rsigma-1.2)),0.6);
-      gcor01[i] = TMath::Max(0.72 +TMath::Exp(3.36*(rsigma-1.2)),0.6);
-      gcorp[i]  = TMath::Max(TMath::Power((rsigma+0.5),1.5),1.2);
-    }
-
-    //
-    for (Int_t i=3;i<10000;i++){
-      //
-      //
-      // inner sector
-      Float_t amp = float(i);
-      Float_t padlength =0.75;
-      gnoise1 = 0.0004/padlength;
-      Float_t nel     = 0.268*amp;
-      Float_t nprim   = 0.155*amp;
-      ggg1[i]          = fParam->GetDiffT()*fParam->GetDiffT()*(2+0.001*nel/(padlength*padlength))/nel;
-      glandau1[i]      = (2.+0.12*nprim)*0.5* (2.+nprim*nprim*0.001/(padlength*padlength))/nprim;
-      if (glandau1[i]>1) glandau1[i]=1;
-      glandau1[i]*=padlength*padlength/12.;      
-      //
-      // outer short
-      padlength =1.;
-      gnoise2   = 0.0004/padlength;
-      nel       = 0.3*amp;
-      nprim     = 0.133*amp;
-      ggg2[i]      = fParam->GetDiffT()*fParam->GetDiffT()*(2+0.0008*nel/(padlength*padlength))/nel;
-      glandau2[i]  = (2.+0.12*nprim)*0.5*(2.+nprim*nprim*0.001/(padlength*padlength))/nprim;
-      if (glandau2[i]>1) glandau2[i]=1;
-      glandau2[i]*=padlength*padlength/12.;
-      //
-      //
-      // outer long
-      padlength =1.5;
-      gnoise3   = 0.0004/padlength;
-      nel       = 0.3*amp;
-      nprim     = 0.133*amp;
-      ggg3[i]      = fParam->GetDiffT()*fParam->GetDiffT()*(2+0.0008*nel/(padlength*padlength))/nel;
-      glandau3[i]  = (2.+0.12*nprim)*0.5*(2.+nprim*nprim*0.001/(padlength*padlength))/nprim;
-      if (glandau3[i]>1) glandau3[i]=1;
-      glandau3[i]*=padlength*padlength/12.;
-      //
-    }
-    ginit = kTRUE;
-  }
-  //
-  //
-  //
-  Int_t amp = int(TMath::Abs(cl->GetQ()));  
-  if (amp>9999) {
-    seed->SetErrorY2(1.);
-    return 1.;
-  }
-  Float_t snoise2;
   Float_t z = TMath::Abs(fParam->GetZLength(0)-TMath::Abs(seed->GetZ()));
   Int_t ctype = cl->GetType();  
-  Float_t padlength= GetPadPitchLength(seed->GetRow());
-  Double_t angle2 = seed->GetSnp()*seed->GetSnp();
-  angle2 = angle2/(1-angle2); 
-  //
-  //cluster "quality"
-  Int_t rsigmay = int(100.*cl->GetSigmaY2()/(seed->GetCurrentSigmaY2()));
-  Float_t res;
-  //
-  if (fSectors==fInnerSec){
-    snoise2 = gnoise1;
-    res     = ggg1[amp]*z+glandau1[amp]*angle2;     
-    if (ctype==0) res *= gcor01[rsigmay];
-    if ((ctype>0)){
-      res+=0.002;
-      res*= gcorp[rsigmay];
-    }
-  }
-  else {
-    if (padlength<1.1){
-      snoise2 = gnoise2;
-      res     = ggg2[amp]*z+glandau2[amp]*angle2; 
-      if (ctype==0) res *= gcor02[rsigmay];      
-      if ((ctype>0)){
-       res+=0.002;
-       res*= gcorp[rsigmay];
-      }
-    }
-    else{
-      snoise2 = gnoise3;      
-      res     = ggg3[amp]*z+glandau3[amp]*angle2; 
-      if (ctype==0) res *= gcor02[rsigmay];
-      if ((ctype>0)){
-       res+=0.002;
-       res*= gcorp[rsigmay];
-      }
-    }
-  }  
+  Int_t    type = (cl->GetRow()<63) ? 0: (cl->GetRow()>126) ? 1:2;
+  Double_t angle = seed->GetSnp()*seed->GetSnp();
+  angle = TMath::Sqrt(TMath::Abs(angle/(1.-angle)));
+  Double_t erry2 = clparam->GetError0Par(0,type, z,angle);
+  if (ctype<0) {
+    erry2+=0.5;  // edge cluster
+  }
+  erry2*=erry2;
+  seed->SetErrorY2(erry2);
+  //
+  return erry2;
+
+//calculate look-up table at the beginning
+//   static Bool_t  ginit = kFALSE;
+//   static Float_t gnoise1,gnoise2,gnoise3;
+//   static Float_t ggg1[10000];
+//   static Float_t ggg2[10000];
+//   static Float_t ggg3[10000];
+//   static Float_t glandau1[10000];
+//   static Float_t glandau2[10000];
+//   static Float_t glandau3[10000];
+//   //
+//   static Float_t gcor01[500];
+//   static Float_t gcor02[500];
+//   static Float_t gcorp[500];
+//   //
 
-  if (ctype<0){
-    res+=0.005;
-    res*=2.4;  // overestimate error 2 times
-  }
-  res+= snoise2;
+//   //
+//   if (ginit==kFALSE){
+//     for (Int_t i=1;i<500;i++){
+//       Float_t rsigma = float(i)/100.;
+//       gcor02[i] = TMath::Max(0.78 +TMath::Exp(7.4*(rsigma-1.2)),0.6);
+//       gcor01[i] = TMath::Max(0.72 +TMath::Exp(3.36*(rsigma-1.2)),0.6);
+//       gcorp[i]  = TMath::Max(TMath::Power((rsigma+0.5),1.5),1.2);
+//     }
+
+//     //
+//     for (Int_t i=3;i<10000;i++){
+//       //
+//       //
+//       // inner sector
+//       Float_t amp = float(i);
+//       Float_t padlength =0.75;
+//       gnoise1 = 0.0004/padlength;
+//       Float_t nel     = 0.268*amp;
+//       Float_t nprim   = 0.155*amp;
+//       ggg1[i]          = fParam->GetDiffT()*fParam->GetDiffT()*(2+0.001*nel/(padlength*padlength))/nel;
+//       glandau1[i]      = (2.+0.12*nprim)*0.5* (2.+nprim*nprim*0.001/(padlength*padlength))/nprim;
+//       if (glandau1[i]>1) glandau1[i]=1;
+//       glandau1[i]*=padlength*padlength/12.;      
+//       //
+//       // outer short
+//       padlength =1.;
+//       gnoise2   = 0.0004/padlength;
+//       nel       = 0.3*amp;
+//       nprim     = 0.133*amp;
+//       ggg2[i]      = fParam->GetDiffT()*fParam->GetDiffT()*(2+0.0008*nel/(padlength*padlength))/nel;
+//       glandau2[i]  = (2.+0.12*nprim)*0.5*(2.+nprim*nprim*0.001/(padlength*padlength))/nprim;
+//       if (glandau2[i]>1) glandau2[i]=1;
+//       glandau2[i]*=padlength*padlength/12.;
+//       //
+//       //
+//       // outer long
+//       padlength =1.5;
+//       gnoise3   = 0.0004/padlength;
+//       nel       = 0.3*amp;
+//       nprim     = 0.133*amp;
+//       ggg3[i]      = fParam->GetDiffT()*fParam->GetDiffT()*(2+0.0008*nel/(padlength*padlength))/nel;
+//       glandau3[i]  = (2.+0.12*nprim)*0.5*(2.+nprim*nprim*0.001/(padlength*padlength))/nprim;
+//       if (glandau3[i]>1) glandau3[i]=1;
+//       glandau3[i]*=padlength*padlength/12.;
+//       //
+//     }
+//     ginit = kTRUE;
+//   }
+//   //
+//   //
+//   //
+//   Int_t amp = int(TMath::Abs(cl->GetQ()));  
+//   if (amp>9999) {
+//     seed->SetErrorY2(1.);
+//     return 1.;
+//   }
+//   Float_t snoise2;
+//   Float_t z = TMath::Abs(fParam->GetZLength(0)-TMath::Abs(seed->GetZ()));
+//   Int_t ctype = cl->GetType();  
+//   Float_t padlength= GetPadPitchLength(seed->GetRow());
+//   Double_t angle2 = seed->GetSnp()*seed->GetSnp();
+//   angle2 = angle2/(1-angle2); 
+//   //
+//   //cluster "quality"
+//   Int_t rsigmay = int(100.*cl->GetSigmaY2()/(seed->GetCurrentSigmaY2()));
+//   Float_t res;
+//   //
+//   if (fSectors==fInnerSec){
+//     snoise2 = gnoise1;
+//     res     = ggg1[amp]*z+glandau1[amp]*angle2;     
+//     if (ctype==0) res *= gcor01[rsigmay];
+//     if ((ctype>0)){
+//       res+=0.002;
+//       res*= gcorp[rsigmay];
+//     }
+//   }
+//   else {
+//     if (padlength<1.1){
+//       snoise2 = gnoise2;
+//       res     = ggg2[amp]*z+glandau2[amp]*angle2; 
+//       if (ctype==0) res *= gcor02[rsigmay];      
+//       if ((ctype>0)){
+//     res+=0.002;
+//     res*= gcorp[rsigmay];
+//       }
+//     }
+//     else{
+//       snoise2 = gnoise3;      
+//       res     = ggg3[amp]*z+glandau3[amp]*angle2; 
+//       if (ctype==0) res *= gcor02[rsigmay];
+//       if ((ctype>0)){
+//     res+=0.002;
+//     res*= gcorp[rsigmay];
+//       }
+//     }
+//   }  
+
+//   if (ctype<0){
+//     res+=0.005;
+//     res*=2.4;  // overestimate error 2 times
+//   }
+//   res+= snoise2;
  
-  if (res<2*snoise2)
-    res = 2*snoise2;
+//   if (res<2*snoise2)
+//     res = 2*snoise2;
   
-  seed->SetErrorY2(res);
-  return res;
+//   seed->SetErrorY2(res);
+//   return res;
 
 
 }
@@ -803,216 +699,160 @@ Double_t AliTPCtrackerMI::ErrY2(AliTPCseed* seed, AliTPCclusterMI * cl){
 Double_t AliTPCtrackerMI::ErrZ2(AliTPCseed* seed, AliTPCclusterMI * cl){
   //
   //
-  //seed->SetErrorY2(0.1);
-  //return 0.1;
-  //calculate look-up table at the beginning
-  static Bool_t  ginit = kFALSE;
-  static Float_t gnoise1,gnoise2,gnoise3;
-  static Float_t ggg1[10000];
-  static Float_t ggg2[10000];
-  static Float_t ggg3[10000];
-  static Float_t glandau1[10000];
-  static Float_t glandau2[10000];
-  static Float_t glandau3[10000];
-  //
-  static Float_t gcor01[1000];
-  static Float_t gcor02[1000];
-  static Float_t gcorp[1000];
+  // Use calibrated cluster error from OCDB
   //
-
+  AliTPCClusterParam * clparam = AliTPCcalibDB::Instance()->GetClusterParam();
   //
-  if (ginit==kFALSE){
-    for (Int_t i=1;i<1000;i++){
-      Float_t rsigma = float(i)/100.;
-      gcor02[i] = TMath::Max(0.81 +TMath::Exp(6.8*(rsigma-1.2)),0.6);
-      gcor01[i] = TMath::Max(0.72 +TMath::Exp(2.04*(rsigma-1.2)),0.6);
-      gcorp[i]  = TMath::Max(TMath::Power((rsigma+0.5),1.5),1.2);
-    }
-
-    //
-    for (Int_t i=3;i<10000;i++){
-      //
-      //
-      // inner sector
-      Float_t amp = float(i);
-      Float_t padlength =0.75;
-      gnoise1 = 0.0004/padlength;
-      Float_t nel     = 0.268*amp;
-      Float_t nprim   = 0.155*amp;
-      ggg1[i]          = fParam->GetDiffT()*fParam->GetDiffT()*(2+0.001*nel/(padlength*padlength))/nel;
-      glandau1[i]      = (2.+0.12*nprim)*0.5* (2.+nprim*nprim*0.001/(padlength*padlength))/nprim;
-      if (glandau1[i]>1) glandau1[i]=1;
-      glandau1[i]*=padlength*padlength/12.;      
-      //
-      // outer short
-      padlength =1.;
-      gnoise2   = 0.0004/padlength;
-      nel       = 0.3*amp;
-      nprim     = 0.133*amp;
-      ggg2[i]      = fParam->GetDiffT()*fParam->GetDiffT()*(2+0.0008*nel/(padlength*padlength))/nel;
-      glandau2[i]  = (2.+0.12*nprim)*0.5*(2.+nprim*nprim*0.001/(padlength*padlength))/nprim;
-      if (glandau2[i]>1) glandau2[i]=1;
-      glandau2[i]*=padlength*padlength/12.;
-      //
-      //
-      // outer long
-      padlength =1.5;
-      gnoise3   = 0.0004/padlength;
-      nel       = 0.3*amp;
-      nprim     = 0.133*amp;
-      ggg3[i]      = fParam->GetDiffT()*fParam->GetDiffT()*(2+0.0008*nel/(padlength*padlength))/nel;
-      glandau3[i]  = (2.+0.12*nprim)*0.5*(2.+nprim*nprim*0.001/(padlength*padlength))/nprim;
-      if (glandau3[i]>1) glandau3[i]=1;
-      glandau3[i]*=padlength*padlength/12.;
-      //
-    }
-    ginit = kTRUE;
-  }
-  //
-  //
-  //
-  Int_t amp = int(TMath::Abs(cl->GetQ()));  
-  if (amp>9999) {
-    seed->SetErrorY2(1.);
-    return 1.;
-  }
-  Float_t snoise2;
   Float_t z = TMath::Abs(fParam->GetZLength(0)-TMath::Abs(seed->GetZ()));
   Int_t ctype = cl->GetType();  
-  Float_t padlength= GetPadPitchLength(seed->GetRow());
+  Int_t    type = (cl->GetRow()<63) ? 0: (cl->GetRow()>126) ? 1:2;
   //
   Double_t angle2 = seed->GetSnp()*seed->GetSnp();
-  //  if (angle2<0.6) angle2 = 0.6;
   angle2 = seed->GetTgl()*seed->GetTgl()*(1+angle2/(1-angle2)); 
-  //
-  //cluster "quality"
-  Int_t rsigmaz = int(100.*cl->GetSigmaZ2()/(seed->GetCurrentSigmaZ2()));
-  Float_t res;
-  //
-  if (fSectors==fInnerSec){
-    snoise2 = gnoise1;
-    res     = ggg1[amp]*z+glandau1[amp]*angle2;     
-    if (ctype==0) res *= gcor01[rsigmaz];
-    if ((ctype>0)){
-      res+=0.002;
-      res*= gcorp[rsigmaz];
-    }
+  Double_t angle = TMath::Sqrt(TMath::Abs(angle2));
+  Double_t errz2 = clparam->GetError0Par(1,type, z,angle);
+  if (ctype<0) {
+    errz2+=0.5;  // edge cluster
   }
-  else {
-    if (padlength<1.1){
-      snoise2 = gnoise2;
-      res     = ggg2[amp]*z+glandau2[amp]*angle2; 
-      if (ctype==0) res *= gcor02[rsigmaz];      
-      if ((ctype>0)){
-       res+=0.002;
-       res*= gcorp[rsigmaz];
-      }
-    }
-    else{
-      snoise2 = gnoise3;      
-      res     = ggg3[amp]*z+glandau3[amp]*angle2; 
-      if (ctype==0) res *= gcor02[rsigmaz];
-      if ((ctype>0)){
-       res+=0.002;
-       res*= gcorp[rsigmaz];
-      }
-    }
-  }  
-
-  if (ctype<0){
-    res+=0.002;
-    res*=1.3;
-  }
-  if ((ctype<0) &&amp<70){
-    res+=0.002;
-    res*=1.3;  
-  }
-  res += snoise2;
-  if (res<2*snoise2)
-     res = 2*snoise2;
-  if (res>3) res =3;
-  seed->SetErrorZ2(res);
-  return res;
-}
-
-
-
-/*
-Double_t AliTPCtrackerMI::ErrZ2(AliTPCseed* seed, AliTPCclusterMI * cl){
-  //
-  //
-  //seed->SetErrorZ2(0.1);
-  //return 0.1;
-
-  Float_t snoise2;
-  Float_t z = TMath::Abs(fParam->GetZLength(0)-TMath::Abs(seed->GetZ()));
-  //
-  Float_t rsigmaz = cl->GetSigmaZ2()/(seed->fCurrentSigmaZ2);
-  Int_t ctype = cl->GetType();
-  Float_t amp = TMath::Abs(cl->GetQ());
-  
-  Float_t nel;
-  Float_t nprim;
-  //
-  Float_t landau=2 ;    //landau fluctuation part
-  Float_t gg=2;         // gg fluctuation part
-  Float_t padlength= GetPadPitchLength(seed->GetX());
-  if (fSectors==fInnerSec){
-    snoise2 = 0.0004/padlength;
-    nel     = 0.268*amp;
-    nprim   = 0.155*amp;
-    gg      = (2+0.001*nel/(padlength*padlength))/nel;
-    landau  = (2.+0.12*nprim)*0.5*(2.+nprim*nprim*0.001/(padlength*padlength))/nprim;
-    if (landau>1) landau=1;
-  }
-  else {
-    snoise2 = 0.0004/padlength;
-    nel     = 0.3*amp;
-    nprim   = 0.133*amp;
-    gg      = (2+0.0008*nel/(padlength*padlength))/nel;
-    landau  = (2.+0.12*nprim)*0.5*(2.+nprim*nprim*0.001/(padlength*padlength))/nprim;
-    if (landau>1) landau=1;
-  }
-  Float_t sdiff = gg*fParam->GetDiffT()*fParam->GetDiffT()*z;
-
+  errz2*=errz2;
+  seed->SetErrorZ2(errz2);
   //
-  Float_t angle2 = seed->GetSnp()*seed->GetSnp();
-  angle2 = TMath::Sqrt((1-angle2));
-  if (angle2<0.6) angle2 = 0.6;
-  //angle2 = 1;
+  return errz2;
 
-  Float_t angle = seed->GetTgl()/angle2;
-  Float_t angular = landau*angle*angle*padlength*padlength/12.;
-  Float_t res = sdiff + angular;
 
-  
-  if ((ctype==0) && (fSectors ==fOuterSec))
-    res *= 0.81 +TMath::Exp(6.8*(rsigmaz-1.2));
 
-  if ((ctype==0) && (fSectors ==fInnerSec))
-    res *= 0.72 +TMath::Exp(2.04*(rsigmaz-1.2));
-  
-  if ((ctype>0)){
-    res+=0.005;
-    res*= TMath::Power(rsigmaz+0.5,1.5);  //0.31+0.147*ctype;
-  }
-  if (ctype<0){
-    res+=0.002;
-    res*=1.3;
-  }
-  if ((ctype<0) &&amp<70){
-    res+=0.002;
-    res*=1.3;  
-  }
-  res += snoise2;
-  if (res<2*snoise2)
-     res = 2*snoise2;
+//   //seed->SetErrorY2(0.1);
+//   //return 0.1;
+//   //calculate look-up table at the beginning
+//   static Bool_t  ginit = kFALSE;
+//   static Float_t gnoise1,gnoise2,gnoise3;
+//   static Float_t ggg1[10000];
+//   static Float_t ggg2[10000];
+//   static Float_t ggg3[10000];
+//   static Float_t glandau1[10000];
+//   static Float_t glandau2[10000];
+//   static Float_t glandau3[10000];
+//   //
+//   static Float_t gcor01[1000];
+//   static Float_t gcor02[1000];
+//   static Float_t gcorp[1000];
+//   //
 
-  seed->SetErrorZ2(res);
-  return res;
+//   //
+//   if (ginit==kFALSE){
+//     for (Int_t i=1;i<1000;i++){
+//       Float_t rsigma = float(i)/100.;
+//       gcor02[i] = TMath::Max(0.81 +TMath::Exp(6.8*(rsigma-1.2)),0.6);
+//       gcor01[i] = TMath::Max(0.72 +TMath::Exp(2.04*(rsigma-1.2)),0.6);
+//       gcorp[i]  = TMath::Max(TMath::Power((rsigma+0.5),1.5),1.2);
+//     }
+
+//     //
+//     for (Int_t i=3;i<10000;i++){
+//       //
+//       //
+//       // inner sector
+//       Float_t amp = float(i);
+//       Float_t padlength =0.75;
+//       gnoise1 = 0.0004/padlength;
+//       Float_t nel     = 0.268*amp;
+//       Float_t nprim   = 0.155*amp;
+//       ggg1[i]          = fParam->GetDiffT()*fParam->GetDiffT()*(2+0.001*nel/(padlength*padlength))/nel;
+//       glandau1[i]      = (2.+0.12*nprim)*0.5* (2.+nprim*nprim*0.001/(padlength*padlength))/nprim;
+//       if (glandau1[i]>1) glandau1[i]=1;
+//       glandau1[i]*=padlength*padlength/12.;      
+//       //
+//       // outer short
+//       padlength =1.;
+//       gnoise2   = 0.0004/padlength;
+//       nel       = 0.3*amp;
+//       nprim     = 0.133*amp;
+//       ggg2[i]      = fParam->GetDiffT()*fParam->GetDiffT()*(2+0.0008*nel/(padlength*padlength))/nel;
+//       glandau2[i]  = (2.+0.12*nprim)*0.5*(2.+nprim*nprim*0.001/(padlength*padlength))/nprim;
+//       if (glandau2[i]>1) glandau2[i]=1;
+//       glandau2[i]*=padlength*padlength/12.;
+//       //
+//       //
+//       // outer long
+//       padlength =1.5;
+//       gnoise3   = 0.0004/padlength;
+//       nel       = 0.3*amp;
+//       nprim     = 0.133*amp;
+//       ggg3[i]      = fParam->GetDiffT()*fParam->GetDiffT()*(2+0.0008*nel/(padlength*padlength))/nel;
+//       glandau3[i]  = (2.+0.12*nprim)*0.5*(2.+nprim*nprim*0.001/(padlength*padlength))/nprim;
+//       if (glandau3[i]>1) glandau3[i]=1;
+//       glandau3[i]*=padlength*padlength/12.;
+//       //
+//     }
+//     ginit = kTRUE;
+//   }
+//   //
+//   //
+//   //
+//   Int_t amp = int(TMath::Abs(cl->GetQ()));  
+//   if (amp>9999) {
+//     seed->SetErrorY2(1.);
+//     return 1.;
+//   }
+//   Float_t snoise2;
+//   Float_t z = TMath::Abs(fParam->GetZLength(0)-TMath::Abs(seed->GetZ()));
+//   Int_t ctype = cl->GetType();  
+//   Float_t padlength= GetPadPitchLength(seed->GetRow());
+//   //
+//   Double_t angle2 = seed->GetSnp()*seed->GetSnp();
+//   //  if (angle2<0.6) angle2 = 0.6;
+//   angle2 = seed->GetTgl()*seed->GetTgl()*(1+angle2/(1-angle2)); 
+//   //
+//   //cluster "quality"
+//   Int_t rsigmaz = int(100.*cl->GetSigmaZ2()/(seed->GetCurrentSigmaZ2()));
+//   Float_t res;
+//   //
+//   if (fSectors==fInnerSec){
+//     snoise2 = gnoise1;
+//     res     = ggg1[amp]*z+glandau1[amp]*angle2;     
+//     if (ctype==0) res *= gcor01[rsigmaz];
+//     if ((ctype>0)){
+//       res+=0.002;
+//       res*= gcorp[rsigmaz];
+//     }
+//   }
+//   else {
+//     if (padlength<1.1){
+//       snoise2 = gnoise2;
+//       res     = ggg2[amp]*z+glandau2[amp]*angle2; 
+//       if (ctype==0) res *= gcor02[rsigmaz];      
+//       if ((ctype>0)){
+//     res+=0.002;
+//     res*= gcorp[rsigmaz];
+//       }
+//     }
+//     else{
+//       snoise2 = gnoise3;      
+//       res     = ggg3[amp]*z+glandau3[amp]*angle2; 
+//       if (ctype==0) res *= gcor02[rsigmaz];
+//       if ((ctype>0)){
+//     res+=0.002;
+//     res*= gcorp[rsigmaz];
+//       }
+//     }
+//   }  
+
+//   if (ctype<0){
+//     res+=0.002;
+//     res*=1.3;
+//   }
+//   if ((ctype<0) &&amp<70){
+//     res+=0.002;
+//     res*=1.3;  
+//   }
+//   res += snoise2;
+//   if (res<2*snoise2)
+//      res = 2*snoise2;
+//   if (res>3) res =3;
+//   seed->SetErrorZ2(res);
+//   return res;
 }
-*/
+
 
 
 
@@ -1301,19 +1141,34 @@ void   AliTPCtrackerMI::Transform(AliTPCclusterMI * cluster){
   //
   //
   //
-//   AliTPCTransform trafo;
-
-//   Double_t x[3]={cluster->GetX(),cluster->GetY(),cluster->GetZ()};
-//   Int_t i[1]={cluster->GetDetector()};
-
-//   trafo.Transform(x,i,0,1);
-
-//   cluster->SetX(x[0]);
-//   cluster->SetY(x[1]);
-//   cluster->SetZ(x[2]);
-
-//   return;
+  AliTPCTransform *transform = AliTPCcalibDB::Instance()->GetTransform() ;
+  if (!transform) {
+    AliFatal("Tranformations not in calibDB");
+  }
+  Double_t x[3]={cluster->GetRow(),cluster->GetPad(),cluster->GetTimeBin()};
+  Int_t i[1]={cluster->GetDetector()};
+  transform->Transform(x,i,0,1);  
+  if (!AliTPCReconstructor::GetRecoParam()->GetBYMirror()){
+    if (cluster->GetDetector()%36>17){
+      x[1]*=-1;
+    }
+  }
 
+  //
+  // in debug mode  check the transformation
+  //
+  if (AliTPCReconstructor::StreamLevel()>1) {
+    TTreeSRedirector &cstream = *fDebugStreamer;
+    cstream<<"Transform"<<
+      "x0="<<x[0]<<
+      "x1="<<x[1]<<
+      "x2="<<x[2]<<
+      "Cl.="<<cluster<<
+      "\n"; 
+  }
+  cluster->SetX(x[0]);
+  cluster->SetY(x[1]);
+  cluster->SetZ(x[2]);
   // The old stuff:
 
   //
@@ -1328,9 +1183,9 @@ void   AliTPCtrackerMI::Transform(AliTPCclusterMI * cluster){
   else{
     // chack Loading of Geo matrices from GeoManager - TEMPORARY FIX
   }
-  //cluster->SetX(posC[0]);
-  //cluster->SetY(posC[1]);
-  //cluster->SetZ(posC[2]);
+  cluster->SetX(posC[0]);
+  cluster->SetY(posC[1]);
+  cluster->SetZ(posC[2]);
 }
 
 //_____________________________________________________________________________
@@ -1521,7 +1376,7 @@ Int_t AliTPCtrackerMI::FollowToNext(AliTPCseed& t, Int_t nr) {
       //
       t.SetCurrentCluster(cl); 
       t.SetRow(nr);
-      Int_t accept = AcceptCluster(&t,t.GetCurrentCluster(),1.);
+      Int_t accept = AcceptCluster(&t,t.GetCurrentCluster());
       if ((tpcindex&0x8000)==0) accept =0;
       if (accept<3) { 
        //if founded cluster is acceptible
@@ -1606,7 +1461,7 @@ Int_t AliTPCtrackerMI::FollowToNext(AliTPCseed& t, Int_t nr) {
     t.SetCurrentCluster(cl); 
     t.SetRow(nr);
     if (fIteration==2&&cl->IsUsed(10)) return 0; 
-    Int_t accept = AcceptCluster(&t,t.GetCurrentCluster(),1.);
+    Int_t accept = AcceptCluster(&t,t.GetCurrentCluster());
     if (fIteration==2&&cl->IsUsed(11)) {
       t.SetErrorY2(t.GetErrorY2()+0.03);
       t.SetErrorZ2(t.GetErrorZ2()+0.03); 
@@ -1664,8 +1519,8 @@ Int_t AliTPCtrackerMI::FollowToNextFast(AliTPCseed& t, Int_t nr) {
     t.GetProlongation(x,y,z);
   }
   //
-  // update current shape info every 3 pad-row
-  if ( (nr%6==0) || t.GetNumberOfClusters()<2 || (t.GetCurrentSigmaY2()<0.0001) ){
+  // update current shape info every 2 pad-row
+  if ( (nr%2==0) || t.GetNumberOfClusters()<2 || (t.GetCurrentSigmaY2()<0.0001) ){
     //    t.fCurrentSigmaY = GetSigmaY(&t);
     //t.fCurrentSigmaZ = GetSigmaZ(&t);
     GetShape(&t,nr);
@@ -1702,7 +1557,7 @@ Int_t AliTPCtrackerMI::FollowToNextFast(AliTPCseed& t, Int_t nr) {
 
   if (cl) {
     t.SetCurrentCluster(cl); 
-    //    Int_t accept = AcceptCluster(&t,t.fCurrentCluster,1.);        
+    //    Int_t accept = AcceptCluster(&t,t.fCurrentCluster);        
     //if (accept<3){
       t.SetClusterIndex2(row,index);
       t.SetClusterPointer(row, cl);
@@ -1833,7 +1688,7 @@ Int_t AliTPCtrackerMI::UpdateClusters(AliTPCseed& t,  Int_t nr) {
     }
 
   // update current
-  if ( (nr%6==0) || t.GetNumberOfClusters()<2){
+  if ( (nr%2==0) || t.GetNumberOfClusters()<2){
     //    t.fCurrentSigmaY = GetSigmaY(&t);
     //t.fCurrentSigmaZ = GetSigmaZ(&t);
     GetShape(&t,nr);
@@ -1883,7 +1738,7 @@ Int_t AliTPCtrackerMI::FollowToNextCluster(AliTPCseed & t, Int_t nr) {
 
   if (t.GetCurrentCluster()) {
     t.SetRow(nr); 
-    Int_t accept = AcceptCluster(&t,t.GetCurrentCluster(),1.);
+    Int_t accept = AcceptCluster(&t,t.GetCurrentCluster());
     
     if (t.GetCurrentCluster()->IsUsed(10)){
       //
@@ -2644,7 +2499,6 @@ Int_t AliTPCtrackerMI::RefitInward(AliESDEvent *event)
   //FindKinks(fSeeds,event);
   Info("RefitInward","Number of refitted tracks %d",ntracks);
   fEvent =0;
-  //WriteTracks();
   return 0;
 }
 
@@ -2696,7 +2550,6 @@ Int_t AliTPCtrackerMI::PropagateBack(AliESDEvent *event)
   //FindKinks(fSeeds,event);
   Info("PropagateBack","Number of back propagated tracks %d",ntracks);
   fEvent =0;
-  //WriteTracks();
   
   return 0;
 }
@@ -4425,7 +4278,7 @@ void  AliTPCtrackerMI::FindSplitted(TObjArray * array, AliESDEvent */*esd*/, Int
 
 
 
-void  AliTPCtrackerMI::FindCurling(TObjArray * array, AliESDEvent *esd, Int_t iter)
+void  AliTPCtrackerMI::FindCurling(TObjArray * array, AliESDEvent */*esd*/, Int_t iter)
 {
   //
   //  find Curling tracks
@@ -6672,7 +6525,6 @@ Int_t AliTPCtrackerMI::PropagateForward()
   ParallelTracking(fSeeds,fOuterSec->GetNRows()+fInnerSec->GetNRows()-1,fInnerSec->GetNRows());
   fSectors = fInnerSec;
   ParallelTracking(fSeeds,fInnerSec->GetNRows()-1,0);
-  //WriteTracks();
   return 1;
 }
 
@@ -6716,19 +6568,27 @@ Int_t AliTPCtrackerMI::PropagateBack(AliTPCseed * pt, Int_t row0, Int_t row1)
 void  AliTPCtrackerMI::GetShape(AliTPCseed * seed, Int_t row)
 {
   //
-  //
-  Float_t sd2 = TMath::Abs((fParam->GetZLength(0)-TMath::Abs(seed->GetZ())))*fParam->GetDiffL()*fParam->GetDiffL();
-  //  Float_t padlength =  fParam->GetPadPitchLength(seed->fSector);
-  Float_t padlength =  GetPadPitchLength(row);
-  //
-  Float_t sresy = (seed->GetSector() < fParam->GetNSector()/2) ? 0.2 :0.3;
+  // 
+  AliTPCClusterParam * clparam = AliTPCcalibDB::Instance()->GetClusterParam();
+  Float_t zdrift = TMath::Abs((fParam->GetZLength(0)-TMath::Abs(seed->GetZ())));
+  Int_t type = (seed->GetSector() < fParam->GetNSector()/2) ? 0: (row>126) ? 1:2;
   Double_t angulary  = seed->GetSnp();
-  angulary = angulary*angulary/(1-angulary*angulary);
-  seed->SetCurrentSigmaY2(sd2+padlength*padlength*angulary/12.+sresy*sresy);  
-  //
-  Float_t sresz = fParam->GetZSigma();
-  Float_t angularz  = seed->GetTgl();
-  seed->SetCurrentSigmaZ2(sd2+padlength*padlength*angularz*angularz*(1+angulary)/12.+sresz*sresz);
+  angulary = angulary*angulary/(1.-angulary*angulary);
+  Double_t angularz  = seed->GetTgl()*seed->GetTgl()*(1.+angulary);
+  
+  Double_t sigmay =  clparam->GetRMS0(0,type,zdrift,TMath::Sqrt(TMath::Abs(angulary)));
+  Double_t sigmaz =  clparam->GetRMS0(1,type,zdrift,TMath::Sqrt(TMath::Abs(angularz)));
+  seed->SetCurrentSigmaY2(sigmay*sigmay);
+  seed->SetCurrentSigmaZ2(sigmaz*sigmaz);
+  // Float_t sd2 = TMath::Abs((fParam->GetZLength(0)-TMath::Abs(seed->GetZ())))*fParam->GetDiffL()*fParam->GetDiffL();
+//   //  Float_t padlength =  fParam->GetPadPitchLength(seed->fSector);
+//   Float_t padlength =  GetPadPitchLength(row);
+//   //
+//   Float_t sresy = (seed->GetSector() < fParam->GetNSector()/2) ? 0.2 :0.3;
+//   seed->SetCurrentSigmaY2(sd2+padlength*padlength*angulary/12.+sresy*sresy);  
+//   //
+//   Float_t sresz = fParam->GetZSigma();
+//   seed->SetCurrentSigmaZ2(sd2+padlength*padlength*angularz*angularz*(1+angulary)/12.+sresz*sresz);
   /*
   Float_t wy = GetSigmaY(seed);
   Float_t wz = GetSigmaZ(seed);
@@ -6741,32 +6601,6 @@ void  AliTPCtrackerMI::GetShape(AliTPCseed * seed, Int_t row)
 }
 
 
-Float_t  AliTPCtrackerMI::GetSigmaY(AliTPCseed * seed)
-{
-  //
-  //  
-  Float_t sd2 = TMath::Abs((fParam->GetZLength(0)-TMath::Abs(seed->GetZ())))*fParam->GetDiffL()*fParam->GetDiffL();
-  Float_t padlength =  fParam->GetPadPitchLength(seed->GetSector());
-  Float_t sres = (seed->GetSector() < fParam->GetNSector()/2) ? 0.2 :0.3;
-  Float_t angular  = seed->GetSnp();
-  angular = angular*angular/(1-angular*angular);
-  //  angular*=angular;
-  //angular  = TMath::Sqrt(angular/(1-angular));
-  Float_t res = TMath::Sqrt(sd2+padlength*padlength*angular/12.+sres*sres);
-  return res;
-}
-Float_t  AliTPCtrackerMI::GetSigmaZ(AliTPCseed * seed)
-{
-  //
-  //
-  Float_t sd2 = TMath::Abs((fParam->GetZLength(0)-TMath::Abs(seed->GetZ())))*fParam->GetDiffL()*fParam->GetDiffL();
-  Float_t padlength =  fParam->GetPadPitchLength(seed->GetSector());
-  Float_t sres = fParam->GetZSigma();
-  Float_t angular  = seed->GetTgl();
-  Float_t res = TMath::Sqrt(sd2+padlength*padlength*angular*angular/12.+sres*sres);
-  return res;
-}
-
 
 //__________________________________________________________________________
 void AliTPCtrackerMI::CookLabel(AliKalmanTrack *tk, Float_t wrong) const {
@@ -7043,8 +6877,13 @@ AliTPCtrackerMI::AliTPCRow::InsertCluster(const AliTPCclusterMI* c, UInt_t index
   // Insert a cluster into this pad row in accordence with its y-coordinate
   //-----------------------------------------------------------------------
   if (fN==kMaxClusterPerRow) {
-    cerr<<"AliTPCRow::InsertCluster(): Too many clusters !\n"; return;
+    //AliInfo("AliTPCRow::InsertCluster(): Too many clusters"); 
+    return;
   }
+  if (fN>=fN1+fN2) {
+    //AliInfo("AliTPCRow::InsertCluster(): Too many clusters !");
+  }
+
   if (fN==0) {fIndex[0]=index; fClusters[fN++]=c; return;}
   Int_t i=Find(c->GetZ());
   memmove(fClusters+i+1 ,fClusters+i,(fN-i)*sizeof(AliTPCclusterMI*));
@@ -7147,6 +6986,16 @@ AliTPCclusterMI * AliTPCtrackerMI::AliTPCRow::FindNearest2(Double_t y, Double_t
 }
 
 
+void AliTPCtrackerMI::AliTPCRow::SetFastCluster(Int_t i, Short_t cl){
+  //
+  // Set cluster info for fast navigation
+  //
+  if (i>510|| i<0){
+  }else{
+    fFastCluster[i]=cl;
+  }
+}
+