]> git.uio.no Git - u/mrichter/AliRoot.git/blobdiff - TPC/AliTPCcalibDB.cxx
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[u/mrichter/AliRoot.git] / TPC / AliTPCcalibDB.cxx
index 10f3689b95e28c10dedd53987d13b20fb8c52140..831830ec6901e37ca695b939733e0d4323264cdb 100644 (file)
 //                                                                           //
 // Request an instance with AliTPCcalibDB::Instance()                        //
 // If a new event is processed set the event number with SetRun              //
-// Then request the calibration data                                         // 
-//                                                                           //
+// Then request the calibration data                                         ////
+//
+//
+// Calibration data:
+// 0.)  Altro mapping
+//          Simulation      - not yet 
+//          Reconstruction  - AliTPCclustererMI::Digits2Clusters(AliRawReader* rawReader)
+//
+// 1.)  pad by pad calibration -  AliTPCCalPad
+//      
+//      a.) fPadGainFactor
+//          Simulation: AliTPCDigitizer::ExecFast - Multiply by gain
+//          Reconstruction : AliTPCclustererMI::Digits2Clusters - Divide by gain  
+//
+//      b.) fPadNoise -
+//          Simulation:        AliTPCDigitizer::ExecFast
+//          Reconstruction:    AliTPCclustererMI::FindClusters(AliTPCCalROC * noiseROC)
+//                             Noise depending cut on clusters charge (n sigma)
+//      c.) fPedestal:
+//          Simulation:     Not used yet - To be impleneted - Rounding to the nearest integer
+//          Reconstruction: Used in AliTPCclustererMI::Digits2Clusters(AliRawReader* rawReader) 
+//                          if data taken without zero suppression  
+//                          Currently switch in  fRecoParam->GetCalcPedestal();
+//      
+//      d.) fPadTime0
+//          Simulation:      applied in the AliTPC::MakeSector - adding offset
+//          Reconstruction:  AliTPCTransform::Transform() - remove offset
+//                           AliTPCTransform::Transform() - to be called
+//                           in AliTPCtracker::Transform()      
+//
+// 
+// 2.)  Space points transformation:
+//
+//      a.) General coordinate tranformation - AliTPCtransform (see $ALICE_ROOT/TPC/AliTPCtransform.cxx)
+//          Created on fly - use the other calibration components
+//                 Unisochronity  - (substract time0 - pad by pad)
+//                 Drift velocity - Currently common drift velocity - functionality of AliTPCParam
+//                 ExB effect    
+//          Simulation     - Not used directly (the effects are applied one by one (see AliTPC::MakeSector)
+//          Reconstruction - 
+//                           AliTPCclustererMI::AddCluster
+//                           AliTPCtrackerMI::Transform
+//      b.) ExB effect calibration - 
+//             classes (base class AliTPCExB, implementation- AliTPCExBExact.h  AliTPCExBFirst.h)
+//             a.a) Simulation:   applied in the AliTPC::MakeSector - 
+//                                calib->GetExB()->CorrectInverse(dxyz0,dxyz1);
+//             a.b) Reconstruction -  
+//                  
+//                  in AliTPCtransform::Correct() - called calib->GetExB()->Correct(dxyz0,dxyz1)
+//
+//  3.)   cluster error, shape and Q parameterization
+//
+//
+//
 ///////////////////////////////////////////////////////////////////////////////
 
+#include <iostream>
+#include <fstream>
+
 
 #include <AliCDBManager.h>
-#include <AliCDBStorage.h>
 #include <AliCDBEntry.h>
+#include <AliCDBId.h>
 #include <AliLog.h>
+#include <AliMagF.h>
+#include <AliSplineFit.h>
+#include <AliCTPTimeParams.h>
 
 #include "AliTPCcalibDB.h"
+#include "AliTPCdataQA.h"
+#include "AliTPCcalibDButil.h"
+#include "AliTPCAltroMapping.h"
+#include "AliTPCExB.h"
 
 #include "AliTPCCalROC.h"
 #include "AliTPCCalPad.h"
-#include "AliTPCCalDet.h"
+#include "AliTPCSensorTempArray.h"
+#include "AliGRPObject.h"
+#include "AliTPCTransform.h"
+#include "AliTPCmapper.h"
+
+class AliCDBStorage;
+class AliTPCCalDet;
+//
+//
+
+#include "TFile.h"
+#include "TKey.h"
+#include "TGraphErrors.h"
+
+#include "TObjArray.h"
+#include "TObjString.h"
+#include "TString.h"
+#include "TDirectory.h"
+#include "TArrayI.h"
+#include "AliTPCCalPad.h"
+#include "AliTPCCalibPulser.h"
+#include "AliTPCCalibPedestal.h"
+#include "AliTPCCalibCE.h"
+#include "AliTPCExBFirst.h"
+#include "AliTPCTempMap.h"
+#include "AliTPCCalibVdrift.h"
+#include "AliTPCCalibRaw.h"
+#include "AliTPCParam.h"
+#include "AliTPCCorrection.h"
+#include "AliTPCPreprocessorOnline.h"
+
 
 ClassImp(AliTPCcalibDB)
 
 AliTPCcalibDB* AliTPCcalibDB::fgInstance = 0;
 Bool_t AliTPCcalibDB::fgTerminated = kFALSE;
+TObjArray    AliTPCcalibDB::fgExBArray;    // array of ExB corrections
 
 
 //_ singleton implementation __________________________________________________
@@ -77,23 +170,101 @@ void AliTPCcalibDB::Terminate()
 }
 
 //_____________________________________________________________________________
-AliTPCcalibDB::AliTPCcalibDB()
-              :TObject(),
-              fRun(-1),
-              fPadGainFactor(0),
-              fPadTime0(0),
-              fPadPRFWidth(0),
-              fPadNoise(0),
-              fPedestals(0),
-              fParam(0)
+AliTPCcalibDB::AliTPCcalibDB():
+  TObject(),
+  fRun(-1),
+  fTransform(0),
+  fExB(0),
+  fPadGainFactor(0),
+  fDedxGainFactor(0),
+  fPadTime0(0),
+  fDistortionMap(0),
+  fComposedCorrection(0),
+  fComposedCorrectionArray(0),
+  fPadNoise(0),
+  fPedestals(0),
+  fCalibRaw(0),
+  fDataQA(0),
+  fALTROConfigData(0),
+  fPulserData(0),
+  fCEData(0),
+  fTemperature(0),
+  fMapping(0),
+  fParam(0),
+  fClusterParam(0),
+  fTimeGainSplines(0),
+  fTimeGainSplinesArray(100000),
+  fGRPArray(100000),            //! array of GRPs  -  per run  - JUST for calibration studies
+  fGRPMaps(100000),            //! array of GRPs  -  per run  - JUST for calibration studies
+  fGoofieArray(100000),         //! array of GOOFIE values -per run - Just for calibration studies
+  fVoltageArray(100000),
+  fTemperatureArray(100000),    //! array of temperature sensors - per run - Just for calibration studies
+  fVdriftArray(100000),                 //! array of v drift interfaces
+  fDriftCorrectionArray(100000),  //! array of drift correction
+  fRunList(100000),              //! run list - indicates try to get the run param 
+  fDButil(0),
+  fCTPTimeParams(0)
 {
   //
   // constructor
   //  
-
+  //
+  fgInstance=this;
   Update();    // temporary
 }
 
+AliTPCcalibDB::AliTPCcalibDB(const AliTPCcalibDB& ):
+  TObject(),
+  fRun(-1),
+  fTransform(0),
+  fExB(0),
+  fPadGainFactor(0),
+  fDedxGainFactor(0),
+  fPadTime0(0),
+  fDistortionMap(0),
+  fComposedCorrection(0),
+  fComposedCorrectionArray(0),
+  fPadNoise(0),
+  fPedestals(0),
+  fCalibRaw(0),
+  fDataQA(0),
+  fALTROConfigData(0),
+  fPulserData(0),
+  fCEData(0),
+  fTemperature(0),
+  fMapping(0),
+  fParam(0),
+  fClusterParam(0),
+  fTimeGainSplines(0),
+  fTimeGainSplinesArray(100000),
+  fGRPArray(0),          //! array of GRPs  -  per run  - JUST for calibration studies
+  fGRPMaps(0),          //! array of GRPs  -  per run  - JUST for calibration studies
+  fGoofieArray(0),        //! array of GOOFIE values -per run - Just for calibration studies
+  fVoltageArray(0),
+  fTemperatureArray(0),   //! array of temperature sensors - per run - Just for calibration studies
+  fVdriftArray(0),         //! array of v drift interfaces
+  fDriftCorrectionArray(0), //! array of v drift corrections
+  fRunList(0),              //! run list - indicates try to get the run param 
+  fDButil(0),
+  fCTPTimeParams(0)
+{
+  //
+  // Copy constructor invalid -- singleton implementation
+  //
+   Error("copy constructor","invalid -- singleton implementation");
+}
+
+AliTPCcalibDB& AliTPCcalibDB::operator= (const AliTPCcalibDB& )
+{
+//
+// Singleton implementation - no assignment operator
+//
+  Error("operator =", "assignment operator not implemented");
+  return *this;
+}
+
+
+
 //_____________________________________________________________________________
 AliTPCcalibDB::~AliTPCcalibDB() 
 {
@@ -101,13 +272,13 @@ AliTPCcalibDB::~AliTPCcalibDB()
   // destructor
   //
   
-  // don't delete anything, CDB cache is active!
-  //if (fPadGainFactor) delete fPadGainFactor;
-  //if (fPadTime0) delete fPadTime0;
-  //if (fPadPRFWidth) delete fPadPRFWidth;
-  //if (fPadNoise) delete fPadNoise;
 }
-
+AliTPCCalPad* AliTPCcalibDB::GetDistortionMap(Int_t i) const {
+  //
+  // get distortion map - due E field distortions
+  //
+  return (fDistortionMap) ? (AliTPCCalPad*)fDistortionMap->At(i):0;
+}
 
 //_____________________________________________________________________________
 AliCDBEntry* AliTPCcalibDB::GetCDBEntry(const char* cdbPath)
@@ -136,25 +307,47 @@ void AliTPCcalibDB::SetRun(Long64_t run)
   //  
   if (fRun == run)
     return;  
-  fRun = run;
+       fRun = run;
   Update();
 }
   
 
 
 void AliTPCcalibDB::Update(){
+  //
+  // cache the OCDB entries for simulation, reconstruction, calibration
+  //  
   //
   AliCDBEntry * entry=0;
-  
   Bool_t cdbCache = AliCDBManager::Instance()->GetCacheFlag(); // save cache status
   AliCDBManager::Instance()->SetCacheFlag(kTRUE); // activate CDB cache
-  
+  fDButil = new AliTPCcalibDButil;   
   //
+
   entry          = GetCDBEntry("TPC/Calib/PadGainFactor");
   if (entry){
     //if (fPadGainFactor) delete fPadGainFactor;
     entry->SetOwner(kTRUE);
     fPadGainFactor = (AliTPCCalPad*)entry->GetObject();
+  }else{
+    AliFatal("TPC - Missing calibration entry TPC/Calib/PadGainFactor")
+  }
+  //
+  entry          = GetCDBEntry("TPC/Calib/TimeGain");
+  if (entry){
+    //if (fTimeGainSplines) delete fTimeGainSplines;
+    entry->SetOwner(kTRUE);
+    fTimeGainSplines = (TObjArray*)entry->GetObject();
+  }else{
+    AliFatal("TPC - Missing calibration entry TPC/Calib/Timegain")
+  }
+  //
+  entry          = GetCDBEntry("TPC/Calib/GainFactorDedx");
+  if (entry){
+    entry->SetOwner(kTRUE);
+    fDedxGainFactor = (AliTPCCalPad*)entry->GetObject();
+  }else{
+    AliFatal("TPC - Missing calibration entry TPC/Calib/gainFactordEdx")
   }
   //
   entry          = GetCDBEntry("TPC/Calib/PadTime0");
@@ -162,20 +355,29 @@ void AliTPCcalibDB::Update(){
     //if (fPadTime0) delete fPadTime0;
     entry->SetOwner(kTRUE);
     fPadTime0 = (AliTPCCalPad*)entry->GetObject();
+  }else{
+    AliFatal("TPC - Missing calibration entry")
   }
-  //
-  entry          = GetCDBEntry("TPC/Calib/PadPRF");
+
+  entry          = GetCDBEntry("TPC/Calib/Distortion");
   if (entry){
-    //if (fPadPRFWidth) delete fPadPRFWidth;
+    //if (fPadTime0) delete fPadTime0;
     entry->SetOwner(kTRUE);
-    fPadPRFWidth = (AliTPCCalPad*)entry->GetObject();
+    fDistortionMap =dynamic_cast<TObjArray*>(entry->GetObject());
+  }else{
+    //AliFatal("TPC - Missing calibration entry")
   }
+
+
+  //
   //
   entry          = GetCDBEntry("TPC/Calib/PadNoise");
   if (entry){
     //if (fPadNoise) delete fPadNoise;
     entry->SetOwner(kTRUE);
     fPadNoise = (AliTPCCalPad*)entry->GetObject();
+  }else{
+    AliFatal("TPC - Missing calibration entry")
   }
 
   entry          = GetCDBEntry("TPC/Calib/Pedestals");
@@ -185,15 +387,1601 @@ void AliTPCcalibDB::Update(){
     fPedestals = (AliTPCCalPad*)entry->GetObject();
   }
 
+  entry          = GetCDBEntry("TPC/Calib/Temperature");
+  if (entry){
+    //if (fTemperature) delete fTemperature;
+    entry->SetOwner(kTRUE);
+    fTemperature = (AliTPCSensorTempArray*)entry->GetObject();
+  }
+
   entry          = GetCDBEntry("TPC/Calib/Parameters");
   if (entry){
     //if (fPadNoise) delete fPadNoise;
     entry->SetOwner(kTRUE);
     fParam = (AliTPCParam*)(entry->GetObject()->Clone());
+  }else{
+    AliFatal("TPC - Missing calibration entry TPC/Calib/Parameters")
+  }
+
+  entry          = GetCDBEntry("TPC/Calib/ClusterParam");
+  if (entry){
+    entry->SetOwner(kTRUE);
+    fClusterParam = (AliTPCClusterParam*)(entry->GetObject()->Clone());
+  }else{
+    AliFatal("TPC - Missing calibration entry")
+  }
+
+  //ALTRO configuration data
+  entry          = GetCDBEntry("TPC/Calib/AltroConfig");
+  if (entry){
+    entry->SetOwner(kTRUE);
+    fALTROConfigData=(TObjArray*)(entry->GetObject());
+  }else{
+    AliFatal("TPC - Missing calibration entry")
+  }
+  
+  //Calibration Pulser data
+  entry          = GetCDBEntry("TPC/Calib/Pulser");
+  if (entry){
+    entry->SetOwner(kTRUE);
+    fPulserData=(TObjArray*)(entry->GetObject());
+  }
+  
+  //CE data
+  entry          = GetCDBEntry("TPC/Calib/CE");
+  if (entry){
+    entry->SetOwner(kTRUE);
+    fCEData=(TObjArray*)(entry->GetObject());
+  }
+  //RAW calibration data
+ //  entry          = GetCDBEntry("TPC/Calib/Raw");
+  
+  entry          = GetCDBEntry("TPC/Calib/Mapping");
+  if (entry){
+    //if (fPadNoise) delete fPadNoise;
+    entry->SetOwner(kTRUE);
+    TObjArray * array = dynamic_cast<TObjArray*>(entry->GetObject());
+    if (array && array->GetEntriesFast()==6){
+      fMapping = new AliTPCAltroMapping*[6];
+      for (Int_t i=0; i<6; i++){
+        fMapping[i] =  dynamic_cast<AliTPCAltroMapping*>(array->At(i));
+      }
+    }
   }
 
+  //CTP calibration data
+  entry          = GetCDBEntry("GRP/CTP/CTPtiming");
+  if (entry){
+    //entry->SetOwner(kTRUE);
+    fCTPTimeParams=dynamic_cast<AliCTPTimeParams*>(entry->GetObject());
+  }else{
+    AliError("TPC - Missing calibration entry")
+  }  
+  //TPC space point correction data
+  entry          = GetCDBEntry("TPC/Calib/Correction");
+  if (entry){
+    //entry->SetOwner(kTRUE);
+    fComposedCorrection=dynamic_cast<AliTPCCorrection*>(entry->GetObject());
+    if (fComposedCorrection) fComposedCorrection->Init();
+    fComposedCorrectionArray=dynamic_cast<TObjArray*>(entry->GetObject());
+    if (fComposedCorrectionArray){
+      for (Int_t i=0; i<fComposedCorrectionArray->GetEntries(); i++){
+       AliTPCCorrection* composedCorrection= dynamic_cast<AliTPCCorrection*>(fComposedCorrectionArray->At(i));
+       if (composedCorrection) composedCorrection->Init();
+      }
+    }
+  }else{
+    AliError("TPC - Missing calibration entry-  TPC/Calib/Correction")
+  }  
+
+  //
+  if (!fTransform) {
+    fTransform=new AliTPCTransform(); 
+    fTransform->SetCurrentRun(AliCDBManager::Instance()->GetRun());
+  }
 
   //
   AliCDBManager::Instance()->SetCacheFlag(cdbCache); // reset original CDB cache
+}
+
+void AliTPCcalibDB::UpdateNonRec(){
+  //
+  // Update/Load the parameters which are important for QA studies
+  // and not used yet for the reconstruction
+  //
+   //RAW calibration data
+  AliCDBEntry * entry=0;
+  entry          = GetCDBEntry("TPC/Calib/Raw");
+  if (entry){
+    entry->SetOwner(kTRUE);
+    TObjArray *arr=(TObjArray*)(entry->GetObject());
+    if (arr) fCalibRaw=(AliTPCCalibRaw*)arr->At(0);
+  }
+  //QA calibration data
+  entry          = GetCDBEntry("TPC/Calib/QA");
+  if (entry){
+    entry->SetOwner(kTRUE);
+    fDataQA=dynamic_cast<AliTPCdataQA*>(entry->GetObject());
+  }
+  // High voltage
+  if (fRun>=0){
+    entry = AliCDBManager::Instance()->Get("TPC/Calib/HighVoltage",fRun);
+    if (entry)  {
+      fVoltageArray.AddAt(entry->GetObject(),fRun);
+    }
+  }
+
+}
+
+
+
+void AliTPCcalibDB::CreateObjectList(const Char_t *filename, TObjArray *calibObjects)
+{
+//
+// Create calibration objects and read contents from OCDB
+//
+   if ( calibObjects == 0x0 ) return;
+   ifstream in;
+   in.open(filename);
+   if ( !in.is_open() ){
+      fprintf(stderr,"Error: cannot open list file '%s'", filename);
+      return;
+   }
+   
+   AliTPCCalPad *calPad=0x0;
+   
+   TString sFile;
+   sFile.ReadFile(in);
+   in.close();
+   
+   TObjArray *arrFileLine = sFile.Tokenize("\n");
+   
+   TIter nextLine(arrFileLine);
+   
+   TObjString *sObjLine=0x0;
+   while ( (sObjLine = (TObjString*)nextLine()) ){
+      TString sLine(sObjLine->GetString());
+      
+      TObjArray *arrNextCol = sLine.Tokenize("\t");
+      
+      TObjString *sObjType     = (TObjString*)(arrNextCol->At(0));
+      TObjString *sObjFileName = (TObjString*)(arrNextCol->At(1));
+      
+      if ( !sObjType || ! sObjFileName ) continue;
+      TString sType(sObjType->GetString());
+      TString sFileName(sObjFileName->GetString());
+      printf("%s\t%s\n",sType.Data(),sFileName.Data());
+      
+      TFile *fIn = TFile::Open(sFileName);
+      if ( !fIn ){
+         fprintf(stderr,"File not found: '%s'", sFileName.Data());
+         continue;
+      }
+      
+      if ( sType == "CE" ){
+         AliTPCCalibCE *ce = (AliTPCCalibCE*)fIn->Get("AliTPCCalibCE");
+         
+         calPad = new AliTPCCalPad((TObjArray*)ce->GetCalPadT0());         
+         calPad->SetNameTitle("CETmean","CETmean");
+         calibObjects->Add(calPad);
+         
+         calPad = new AliTPCCalPad((TObjArray*)ce->GetCalPadQ());         
+         calPad->SetNameTitle("CEQmean","CEQmean");
+         calibObjects->Add(calPad);        
+         
+         calPad = new AliTPCCalPad((TObjArray*)ce->GetCalPadRMS());
+         calPad->SetNameTitle("CETrms","CETrms");
+         calibObjects->Add(calPad);         
+                  
+      } else if ( sType == "Pulser") {
+         AliTPCCalibPulser *sig = (AliTPCCalibPulser*)fIn->Get("AliTPCCalibPulser");
+         
+         calPad = new AliTPCCalPad((TObjArray*)sig->GetCalPadT0());         
+         calPad->SetNameTitle("PulserTmean","PulserTmean");
+         calibObjects->Add(calPad);
+         
+         calPad = new AliTPCCalPad((TObjArray*)sig->GetCalPadQ());         
+         calPad->SetNameTitle("PulserQmean","PulserQmean");
+         calibObjects->Add(calPad);        
+         
+         calPad = new AliTPCCalPad((TObjArray*)sig->GetCalPadRMS());
+         calPad->SetNameTitle("PulserTrms","PulserTrms");
+         calibObjects->Add(calPad);         
+      
+      } else if ( sType == "Pedestals") {
+         AliTPCCalibPedestal *ped = (AliTPCCalibPedestal*)fIn->Get("AliTPCCalibPedestal");
+         
+         calPad = new AliTPCCalPad((TObjArray*)ped->GetCalPadPedestal());         
+         calPad->SetNameTitle("Pedestals","Pedestals");
+         calibObjects->Add(calPad);
+         
+         calPad = new AliTPCCalPad((TObjArray*)ped->GetCalPadRMS());         
+         calPad->SetNameTitle("Noise","Noise");
+         calibObjects->Add(calPad);        
+     
+      } else {
+         fprintf(stderr,"Undefined Type: '%s'",sType.Data());
+         
+      }
+      delete fIn;
+   }
+}
+
+
+
+void AliTPCcalibDB::MakeTree(const char * fileName, TObjArray * array, const char * mapFileName, AliTPCCalPad* outlierPad, Float_t ltmFraction) {
+  //
+  // Write a tree with all available information
+  // if mapFileName is specified, the Map information are also written to the tree
+  // pads specified in outlierPad are not used for calculating statistics
+  //  - the same function as AliTPCCalPad::MakeTree - 
+  //
+   AliTPCROC* tpcROCinstance = AliTPCROC::Instance();
+
+   TObjArray* mapIROCs = 0;
+   TObjArray* mapOROCs = 0;
+   TVectorF *mapIROCArray = 0;
+   TVectorF *mapOROCArray = 0;
+   Int_t mapEntries = 0;
+   TString* mapNames = 0;
+   
+   if (mapFileName) {
+      TFile mapFile(mapFileName, "read");
+      
+      TList* listOfROCs = mapFile.GetListOfKeys();
+      mapEntries = listOfROCs->GetEntries()/2;
+      mapIROCs = new TObjArray(mapEntries*2);
+      mapOROCs = new TObjArray(mapEntries*2);
+      mapIROCArray = new TVectorF[mapEntries];
+      mapOROCArray = new TVectorF[mapEntries];
+      
+      mapNames = new TString[mapEntries];
+      for (Int_t ivalue = 0; ivalue < mapEntries; ivalue++) {
+       TString nameROC(((TKey*)(listOfROCs->At(ivalue*2)))->GetName());
+         nameROC.Remove(nameROC.Length()-4, 4);
+         mapIROCs->AddAt((AliTPCCalROC*)mapFile.Get((nameROC + "IROC").Data()), ivalue);
+         mapOROCs->AddAt((AliTPCCalROC*)mapFile.Get((nameROC + "OROC").Data()), ivalue);
+         mapNames[ivalue].Append(nameROC);
+      }
+      
+      for (Int_t ivalue = 0; ivalue < mapEntries; ivalue++) {
+         mapIROCArray[ivalue].ResizeTo(tpcROCinstance->GetNChannels(0));
+         mapOROCArray[ivalue].ResizeTo(tpcROCinstance->GetNChannels(36));
+      
+         for (UInt_t ichannel = 0; ichannel < tpcROCinstance->GetNChannels(0); ichannel++)
+            (mapIROCArray[ivalue])[ichannel] = ((AliTPCCalROC*)(mapIROCs->At(ivalue)))->GetValue(ichannel);
+         for (UInt_t ichannel = 0; ichannel < tpcROCinstance->GetNChannels(36); ichannel++)
+            (mapOROCArray[ivalue])[ichannel] = ((AliTPCCalROC*)(mapOROCs->At(ivalue)))->GetValue(ichannel);
+      }
+
+   } //  if (mapFileName)
   
+   TTreeSRedirector cstream(fileName);
+   Int_t arrayEntries = array->GetEntries();
+   
+   TString* names = new TString[arrayEntries];
+   for (Int_t ivalue = 0; ivalue < arrayEntries; ivalue++)
+      names[ivalue].Append(((AliTPCCalPad*)array->At(ivalue))->GetName());
+
+   for (UInt_t isector = 0; isector < tpcROCinstance->GetNSectors(); isector++) {
+      //
+      // get statistic for given sector
+      //
+      TVectorF median(arrayEntries);
+      TVectorF mean(arrayEntries);
+      TVectorF rms(arrayEntries);
+      TVectorF ltm(arrayEntries);
+      TVectorF ltmrms(arrayEntries);
+      TVectorF medianWithOut(arrayEntries);
+      TVectorF meanWithOut(arrayEntries);
+      TVectorF rmsWithOut(arrayEntries);
+      TVectorF ltmWithOut(arrayEntries);
+      TVectorF ltmrmsWithOut(arrayEntries);
+      
+      TVectorF *vectorArray = new TVectorF[arrayEntries];
+      for (Int_t ivalue = 0; ivalue < arrayEntries; ivalue++)
+         vectorArray[ivalue].ResizeTo(tpcROCinstance->GetNChannels(isector));
+      
+      for (Int_t ivalue = 0; ivalue < arrayEntries; ivalue++) {
+         AliTPCCalPad* calPad = (AliTPCCalPad*) array->At(ivalue);
+         AliTPCCalROC* calROC = calPad->GetCalROC(isector);
+         AliTPCCalROC* outlierROC = 0;
+         if (outlierPad) outlierROC = outlierPad->GetCalROC(isector);
+         if (calROC) {
+            median[ivalue] = calROC->GetMedian();
+            mean[ivalue] = calROC->GetMean();
+            rms[ivalue] = calROC->GetRMS();
+            Double_t ltmrmsValue = 0;
+            ltm[ivalue] = calROC->GetLTM(&ltmrmsValue, ltmFraction);
+            ltmrms[ivalue] = ltmrmsValue;
+            if (outlierROC) {
+               medianWithOut[ivalue] = calROC->GetMedian(outlierROC);
+               meanWithOut[ivalue] = calROC->GetMean(outlierROC);
+               rmsWithOut[ivalue] = calROC->GetRMS(outlierROC);
+               ltmrmsValue = 0;
+               ltmWithOut[ivalue] = calROC->GetLTM(&ltmrmsValue, ltmFraction, outlierROC);
+               ltmrmsWithOut[ivalue] = ltmrmsValue;
+            }
+         }
+         else {
+            median[ivalue] = 0.;
+            mean[ivalue] = 0.;
+            rms[ivalue] = 0.;
+            ltm[ivalue] = 0.;
+            ltmrms[ivalue] = 0.;
+            medianWithOut[ivalue] = 0.;
+            meanWithOut[ivalue] = 0.;
+            rmsWithOut[ivalue] = 0.;
+            ltmWithOut[ivalue] = 0.;
+            ltmrmsWithOut[ivalue] = 0.;
+         }
+      }
+      
+      //
+      // fill vectors of variable per pad
+      //
+      TVectorF *posArray = new TVectorF[8];
+      for (Int_t ivalue = 0; ivalue < 8; ivalue++)
+         posArray[ivalue].ResizeTo(tpcROCinstance->GetNChannels(isector));
+
+      Float_t posG[3] = {0};
+      Float_t posL[3] = {0};
+      Int_t ichannel = 0;
+      for (UInt_t irow = 0; irow < tpcROCinstance->GetNRows(isector); irow++) {
+         for (UInt_t ipad = 0; ipad < tpcROCinstance->GetNPads(isector, irow); ipad++) {
+            tpcROCinstance->GetPositionLocal(isector, irow, ipad, posL);
+            tpcROCinstance->GetPositionGlobal(isector, irow, ipad, posG);
+            posArray[0][ichannel] = irow;
+            posArray[1][ichannel] = ipad;
+            posArray[2][ichannel] = posL[0];
+            posArray[3][ichannel] = posL[1];
+            posArray[4][ichannel] = posG[0];
+            posArray[5][ichannel] = posG[1];
+            posArray[6][ichannel] = (Int_t)(ipad - (Double_t)(tpcROCinstance->GetNPads(isector, irow))/2);
+            posArray[7][ichannel] = ichannel;
+            
+            // loop over array containing AliTPCCalPads
+            for (Int_t ivalue = 0; ivalue < arrayEntries; ivalue++) {
+               AliTPCCalPad* calPad = (AliTPCCalPad*) array->At(ivalue);
+               AliTPCCalROC* calROC = calPad->GetCalROC(isector);
+               if (calROC)
+                  (vectorArray[ivalue])[ichannel] = calROC->GetValue(irow, ipad);
+               else
+                  (vectorArray[ivalue])[ichannel] = 0;
+            }
+            ichannel++;
+         }
+      }
+      
+      cstream << "calPads" <<
+         "sector=" << isector;
+      
+      for  (Int_t ivalue = 0; ivalue < arrayEntries; ivalue++) {
+         cstream << "calPads" <<
+            (Char_t*)((names[ivalue] + "_Median=").Data()) << median[ivalue] <<
+            (Char_t*)((names[ivalue] + "_Mean=").Data()) << mean[ivalue] <<
+            (Char_t*)((names[ivalue] + "_RMS=").Data()) << rms[ivalue] <<
+            (Char_t*)((names[ivalue] + "_LTM=").Data()) << ltm[ivalue] <<
+            (Char_t*)((names[ivalue] + "_RMS_LTM=").Data()) << ltmrms[ivalue];
+         if (outlierPad) {
+            cstream << "calPads" <<
+               (Char_t*)((names[ivalue] + "_Median_OutlierCutted=").Data()) << medianWithOut[ivalue] <<
+               (Char_t*)((names[ivalue] + "_Mean_OutlierCutted=").Data()) << meanWithOut[ivalue] <<
+               (Char_t*)((names[ivalue] + "_RMS_OutlierCutted=").Data()) << rmsWithOut[ivalue] <<
+               (Char_t*)((names[ivalue] + "_LTM_OutlierCutted=").Data()) << ltmWithOut[ivalue] <<
+               (Char_t*)((names[ivalue] + "_RMS_LTM_OutlierCutted=").Data()) << ltmrmsWithOut[ivalue];
+         }
+      }
+
+      for  (Int_t ivalue = 0; ivalue < arrayEntries; ivalue++) {
+         cstream << "calPads" <<
+            (Char_t*)((names[ivalue] + ".=").Data()) << &vectorArray[ivalue];
+      }
+
+      if (mapFileName) {
+         for  (Int_t ivalue = 0; ivalue < mapEntries; ivalue++) {
+            if (isector < 36)
+               cstream << "calPads" <<
+                  (Char_t*)((mapNames[ivalue] + ".=").Data()) << &mapIROCArray[ivalue];
+            else
+               cstream << "calPads" <<
+                  (Char_t*)((mapNames[ivalue] + ".=").Data()) << &mapOROCArray[ivalue];
+         }
+      }
+
+      cstream << "calPads" <<
+         "row.=" << &posArray[0] <<
+         "pad.=" << &posArray[1] <<
+         "lx.=" << &posArray[2] <<
+         "ly.=" << &posArray[3] <<
+         "gx.=" << &posArray[4] <<
+         "gy.=" << &posArray[5] <<
+         "rpad.=" << &posArray[6] <<
+         "channel.=" << &posArray[7];
+         
+      cstream << "calPads" <<
+         "\n";
+
+      delete[] posArray;
+      delete[] vectorArray;
+   }
+   
+
+   delete[] names;
+   if (mapFileName) {
+      delete mapIROCs;
+      delete mapOROCs;
+      delete[] mapIROCArray;
+      delete[] mapOROCArray;
+      delete[] mapNames;
+   }
 }
+
+Int_t AliTPCcalibDB::GetRCUTriggerConfig() const
+{
+  //
+  // return the RCU trigger configuration register
+  //
+  TMap *map=GetRCUconfig();
+  if (!map) return -1;
+  TVectorF *v=(TVectorF*)map->GetValue("TRGCONF_TRG_MODE");
+  Float_t mode=-1;
+  for (Int_t i=0; i<v->GetNrows(); ++i){
+    Float_t newmode=v->GetMatrixArray()[i];
+    if (newmode>-1){
+      if (mode>-1&&newmode!=mode) AliWarning("Found different RCU trigger configurations!!!");
+      mode=newmode;
+    }
+  }
+  return (Int_t)mode;
+}
+
+Bool_t AliTPCcalibDB::IsTrgL0() 
+{
+  //
+  // return if the FEE readout was triggered on L0
+  //
+  Int_t mode=GetRCUTriggerConfig();
+  if (mode<0) return kFALSE;
+  return (mode==1);
+}
+
+Bool_t AliTPCcalibDB::IsTrgL1()
+{
+  //
+  // return if the FEE readout was triggered on L1
+  //
+  Int_t mode=GetRCUTriggerConfig();
+  if (mode<0) return kFALSE;
+  return (mode==0);
+}
+
+void AliTPCcalibDB::RegisterExB(Int_t index, Float_t bz, Bool_t bdelete){
+  //
+  // Register static ExB correction map
+  // index - registration index - used for visualization
+  // bz    - bz field in kGaus
+
+  //  Float_t factor =  bz/(-5.);  // default b filed in Cheb with minus sign
+  Float_t factor =  bz/(5.);  // default b filed in Cheb with minus sign
+                              // was chenged in the Revision ???? (Ruben can you add here number)
+  
+  AliMagF*   bmap = new AliMagF("MapsExB","MapsExB", factor,TMath::Sign(1.f,factor),AliMagF::k5kG);
+  
+  AliTPCExBFirst *exb  = new  AliTPCExBFirst(bmap,0.88*2.6400e+04,50,50,50);
+  AliTPCExB::SetInstance(exb);
+  
+  if (bdelete){
+    delete bmap;
+  }else{
+    AliTPCExB::RegisterField(index,bmap);
+  }
+  if (index>=fgExBArray.GetEntries()) fgExBArray.Expand((index+1)*2+11);
+  fgExBArray.AddAt(exb,index);
+}
+
+
+AliTPCExB*    AliTPCcalibDB::GetExB(Float_t bz, Bool_t deleteB) {
+  //
+  // bz filed in KGaus not in tesla
+  // Get ExB correction map
+  // if doesn't exist - create it
+  //
+  Int_t index = TMath::Nint(5+bz);
+  if (index>fgExBArray.GetEntries()) fgExBArray.Expand((index+1)*2+11);
+  if (!fgExBArray.At(index)) AliTPCcalibDB::RegisterExB(index,bz,deleteB);
+  return (AliTPCExB*)fgExBArray.At(index);
+}
+
+
+void  AliTPCcalibDB::SetExBField(Float_t bz){
+  //
+  // Set magnetic filed for ExB correction
+  //
+  fExB = GetExB(bz,kFALSE);
+}
+
+void  AliTPCcalibDB::SetExBField(const AliMagF*   bmap){
+  //
+  // Set magnetic field for ExB correction
+  //
+  AliTPCExBFirst *exb  = new  AliTPCExBFirst(bmap,0.88*2.6400e+04,50,50,50);
+  AliTPCExB::SetInstance(exb);
+  fExB=exb;
+}
+
+
+
+
+
+void AliTPCcalibDB::UpdateRunInformations( Int_t run, Bool_t force){
+  //
+  // - > Don't use it for reconstruction - Only for Calibration studies
+  //
+  if (run<=0) return;
+  fRun=run;
+  AliCDBEntry * entry = 0;
+  if (run>= fRunList.fN){
+    fRunList.Set(run*2+1);
+    fGRPArray.Expand(run*2+1);
+    fGRPMaps.Expand(run*2+1);
+    fGoofieArray.Expand(run*2+1);
+    fVoltageArray.Expand(run*2+1); 
+    fTemperatureArray.Expand(run*2+1);
+    fVdriftArray.Expand(run*2+1);
+    fDriftCorrectionArray.Expand(run*2+1);
+    fTimeGainSplinesArray.Expand(run*2+1);
+    //
+    //
+    fALTROConfigData->Expand(run*2+1);    // ALTRO configuration data
+    fPulserData->Expand(run*2+1);         // Calibration Pulser data
+    fCEData->Expand(run*2+1);             // CE data
+    if (!fTimeGainSplines) fTimeGainSplines = new TObjArray(run*2+1);
+    fTimeGainSplines->Expand(run*2+1); // Array of AliSplineFits: at 0 MIP position in
+  }
+  if (fRunList[run]>0 &&force==kFALSE) return;
+
+  fRunList[run]=1;  // sign as used
+
+  //
+  entry = AliCDBManager::Instance()->Get("GRP/GRP/Data",run);
+  if (entry)  {
+    AliGRPObject * grpRun = dynamic_cast<AliGRPObject*>(entry->GetObject());
+    if (!grpRun){
+      TMap* map = dynamic_cast<TMap*>(entry->GetObject());
+      if (map){
+       //grpRun = new AliGRPObject; 
+       //grpRun->ReadValuesFromMap(map);
+       grpRun =  MakeGRPObjectFromMap(map);
+
+       fGRPMaps.AddAt(map,run);
+      }
+    }
+    fGRPArray.AddAt(grpRun,run);
+  }
+  entry = AliCDBManager::Instance()->Get("TPC/Calib/Goofie",run);
+  if (entry){
+    fGoofieArray.AddAt(entry->GetObject(),run);
+  }
+  //
+  
+  //
+  entry = AliCDBManager::Instance()->Get("TPC/Calib/TimeGain",run);
+  if (entry)  {
+    fTimeGainSplinesArray.AddAt(entry->GetObject(),run);
+  }else{
+    AliFatal("TPC - Missing calibration entry TimeGain")
+  }
+  //
+  entry = AliCDBManager::Instance()->Get("TPC/Calib/TimeDrift",run);
+  if (entry)  {
+    fDriftCorrectionArray.AddAt(entry->GetObject(),run);
+  }else{
+    AliFatal("TPC - Missing calibration entry TimeDrift")
+  }
+  //
+  entry = AliCDBManager::Instance()->Get("TPC/Calib/Temperature",run);
+  if (entry)  {
+    fTemperatureArray.AddAt(entry->GetObject(),run);
+  }
+  //apply fDButil filters
+
+  fDButil->UpdateFromCalibDB();
+  if (fTemperature) fDButil->FilterTemperature(fTemperature);
+
+  AliDCSSensor * press = GetPressureSensor(run,0);
+  AliTPCSensorTempArray * temp = GetTemperatureSensor(run);
+  Bool_t accept=kTRUE;
+  if (temp) {
+    accept = fDButil->FilterTemperature(temp)>0.1;
+  }
+  if (press) {
+    const Double_t kMinP=900.;
+    const Double_t kMaxP=1050.;
+    const Double_t kMaxdP=10.;
+    const Double_t kSigmaCut=4.;
+    fDButil->FilterSensor(press,kMinP,kMaxP,kMaxdP,kSigmaCut);
+    if (press->GetFit()==0) accept=kFALSE;
+  }
+
+  if (press && temp &&accept){
+    AliTPCCalibVdrift * vdrift = new AliTPCCalibVdrift(temp, press,0);
+    fVdriftArray.AddAt(vdrift,run);
+  }
+
+  fDButil->FilterCE(120., 3., 4.,0);
+  fDButil->FilterTracks(run, 10.,0);
+
+}
+
+
+Float_t AliTPCcalibDB::GetGain(Int_t sector, Int_t row, Int_t pad){
+  //
+  // Get Gain factor for given pad
+  //
+  AliTPCCalPad *calPad = Instance()->fDedxGainFactor;;
+  if (!calPad) return 0;
+  return calPad->GetCalROC(sector)->GetValue(row,pad);
+}
+
+AliSplineFit* AliTPCcalibDB::GetVdriftSplineFit(const char* name, Int_t run){
+  //
+  // GetDrift velocity spline fit
+  //
+  TObjArray *arr=GetTimeVdriftSplineRun(run);
+  if (!arr) return 0;
+  return dynamic_cast<AliSplineFit*>(arr->FindObject(name));
+}
+
+AliSplineFit* AliTPCcalibDB::CreateVdriftSplineFit(const char* graphName, Int_t run){
+  //
+  // create spline fit from the drift time graph in TimeDrift
+  //
+  TObjArray *arr=GetTimeVdriftSplineRun(run);
+  if (!arr) return 0;
+  TGraph *graph=dynamic_cast<TGraph*>(arr->FindObject(graphName));
+  if (!graph) return 0;
+  AliSplineFit *fit = new AliSplineFit();
+  fit->SetGraph(graph);
+  fit->SetMinPoints(graph->GetN()+1);
+  fit->InitKnots(graph,2,0,0.001);
+  fit->SplineFit(0);
+  return fit;
+}
+
+AliGRPObject *AliTPCcalibDB::GetGRP(Int_t run){
+  //
+  // Get GRP object for given run 
+  //
+  if (run>= ((Instance()->fGRPArray)).GetEntriesFast()){
+    Instance()->UpdateRunInformations(run);    
+  }
+  AliGRPObject * grpRun = dynamic_cast<AliGRPObject *>((Instance()->fGRPArray).At(run));
+  if (!grpRun) {
+    Instance()->UpdateRunInformations(run);
+    grpRun = dynamic_cast<AliGRPObject *>(Instance()->fGRPArray.At(run));
+    if (!grpRun) return 0; 
+  }
+  return grpRun;
+}
+
+TMap *  AliTPCcalibDB::GetGRPMap(Int_t run){
+  //
+  // Get GRP map for given run
+  //
+  TMap * grpRun = dynamic_cast<TMap *>((Instance()->fGRPMaps).At(run));
+  if (!grpRun) {
+    Instance()->UpdateRunInformations(run);
+    grpRun = dynamic_cast<TMap *>(Instance()->fGRPMaps.At(run));
+    if (!grpRun) return 0; 
+  }
+  return grpRun;
+}
+
+
+AliDCSSensor * AliTPCcalibDB::GetPressureSensor(Int_t run, Int_t type){
+  //
+  // Get Pressure sensor
+  // run  = run number
+  // type = 0 - Cavern pressure
+  //        1 - Suface pressure
+  // First try to get if trom map - if existing  (Old format of data storing)
+  //
+
+
+  TMap *map = GetGRPMap(run);  
+  if (map){
+    AliDCSSensor * sensor = 0;
+    TObject *osensor=0;
+    if (type==0) osensor = ((*map)("fCavernPressure"));
+    if (type==1) osensor = ((*map)("fP2Pressure"));
+    sensor =dynamic_cast<AliDCSSensor *>(osensor); 
+    if (sensor) return sensor;
+  }
+  //
+  // If not map try to get it from the GRPObject
+  //
+  AliGRPObject * grpRun = dynamic_cast<AliGRPObject *>(fGRPArray.At(run)); 
+  if (!grpRun) {
+    UpdateRunInformations(run);
+    grpRun = dynamic_cast<AliGRPObject *>(fGRPArray.At(run));
+    if (!grpRun) return 0; 
+  }
+  AliDCSSensor * sensor = grpRun->GetCavernAtmosPressure();
+  if (type==1) sensor = grpRun->GetSurfaceAtmosPressure();
+  return sensor; 
+}
+
+AliTPCSensorTempArray * AliTPCcalibDB::GetTemperatureSensor(Int_t run){
+  //
+  // Get temperature sensor array
+  //
+  AliTPCSensorTempArray * tempArray = (AliTPCSensorTempArray *)fTemperatureArray.At(run);
+  if (!tempArray) {
+    UpdateRunInformations(run);
+    tempArray = (AliTPCSensorTempArray *)fTemperatureArray.At(run);
+  }
+  return tempArray;
+}
+
+
+TObjArray * AliTPCcalibDB::GetTimeGainSplinesRun(Int_t run){
+  //
+  // Get temperature sensor array
+  //
+  TObjArray * gainSplines = (TObjArray *)fTimeGainSplinesArray.At(run);
+  if (!gainSplines) {
+    UpdateRunInformations(run);
+    gainSplines = (TObjArray *)fTimeGainSplinesArray.At(run);
+  }
+  return gainSplines;
+}
+
+TObjArray * AliTPCcalibDB::GetTimeVdriftSplineRun(Int_t run){
+  //
+  // Get drift spline array
+  //
+  TObjArray * driftSplines = (TObjArray *)fDriftCorrectionArray.At(run);
+  if (!driftSplines) {
+    UpdateRunInformations(run);
+    driftSplines = (TObjArray *)fDriftCorrectionArray.At(run);
+  }
+  return driftSplines;
+}
+
+AliDCSSensorArray * AliTPCcalibDB::GetVoltageSensors(Int_t run){
+  //
+  // Get temperature sensor array
+  //
+  AliDCSSensorArray * voltageArray = (AliDCSSensorArray *)fVoltageArray.At(run);
+  if (!voltageArray) {
+    UpdateRunInformations(run);
+    voltageArray = (AliDCSSensorArray *)fVoltageArray.At(run);
+  }
+  return voltageArray;
+}
+
+AliDCSSensorArray * AliTPCcalibDB::GetGoofieSensors(Int_t run){
+  //
+  // Get temperature sensor array
+  //
+  AliDCSSensorArray * goofieArray = (AliDCSSensorArray *)fGoofieArray.At(run);
+  if (!goofieArray) {
+    UpdateRunInformations(run);
+    goofieArray = (AliDCSSensorArray *)fGoofieArray.At(run);
+  }
+  return goofieArray;
+}
+
+
+
+AliTPCCalibVdrift *     AliTPCcalibDB::GetVdrift(Int_t run){
+  //
+  // Get the interface to the the vdrift 
+  //
+  if (run>=fVdriftArray.GetEntriesFast())  UpdateRunInformations(run);
+  AliTPCCalibVdrift  * vdrift = (AliTPCCalibVdrift*)fVdriftArray.At(run);
+  if (!vdrift) {
+    UpdateRunInformations(run);
+    vdrift= (AliTPCCalibVdrift*)fVdriftArray.At(run);
+  }
+  return vdrift;
+}
+
+Float_t AliTPCcalibDB::GetCEdriftTime(Int_t run, Int_t sector, Double_t timeStamp, Int_t *entries)
+{
+  //
+  // GetCE drift time information for 'sector'
+  // sector 72 is the mean drift time of the A-Side
+  // sector 73 is the mean drift time of the C-Side
+  // it timestamp==-1 return mean value
+  //
+  AliTPCcalibDB::Instance()->SetRun(run);
+  TGraph *gr=AliTPCcalibDB::Instance()->GetCErocTgraph(sector);
+  if (!gr||sector<0||sector>73) {
+    if (entries) *entries=0;
+    return 0.;
+  }
+  Float_t val=0.;
+  if (timeStamp==-1.){
+    val=gr->GetMean(2);
+  }else{
+    for (Int_t ipoint=0;ipoint<gr->GetN();++ipoint){
+      Double_t x,y;
+      gr->GetPoint(ipoint,x,y);
+      if (x<timeStamp) continue;
+      val=y;
+      break;
+    }
+  }
+  return val;
+}
+  
+Float_t AliTPCcalibDB::GetCEchargeTime(Int_t run, Int_t sector, Double_t timeStamp, Int_t *entries)
+{
+  //
+  // GetCE mean charge for 'sector'
+  // it timestamp==-1 return mean value
+  //
+  AliTPCcalibDB::Instance()->SetRun(run);
+  TGraph *gr=AliTPCcalibDB::Instance()->GetCErocQgraph(sector);
+  if (!gr||sector<0||sector>71) {
+    if (entries) *entries=0;
+    return 0.;
+  }
+  Float_t val=0.;
+  if (timeStamp==-1.){
+    val=gr->GetMean(2);
+  }else{
+    for (Int_t ipoint=0;ipoint<gr->GetN();++ipoint){
+      Double_t x,y;
+      gr->GetPoint(ipoint,x,y);
+      if (x<timeStamp) continue;
+      val=y;
+      break;
+    }
+  }
+  return val;
+}
+
+Float_t AliTPCcalibDB::GetDCSSensorValue(AliDCSSensorArray *arr, Int_t timeStamp, const char * sensorName, Int_t sigDigits)
+{
+  //
+  // Get Value for a DCS sensor 'sensorName', run 'run' at time 'timeStamp'
+  //
+  Float_t val=0;
+  const TString sensorNameString(sensorName);
+  AliDCSSensor *sensor = arr->GetSensor(sensorNameString);
+  if (!sensor) return val;
+  //use the dcs graph if possible
+  TGraph *gr=sensor->GetGraph();
+  if (gr){
+    for (Int_t ipoint=0;ipoint<gr->GetN();++ipoint){
+      Double_t x,y;
+      gr->GetPoint(ipoint,x,y);
+      Int_t time=TMath::Nint(sensor->GetStartTime()+x*3600); //time in graph is hours
+      if (time<timeStamp) continue;
+      val=y;
+      break;
+    }
+    //if val is still 0, test if if the requested time if within 5min of the first/last
+    //data point. If this is the case return the firs/last entry
+    //the timestamps might not be syncronised for all calibration types, sometimes a 'pre'
+    //and 'pos' period is requested. Especially to the HV this is not the case!
+    //first point
+    if (val==0 ){
+      Double_t x,y;
+      gr->GetPoint(0,x,y);
+      Int_t time=TMath::Nint(sensor->GetStartTime()+x*3600); //time in graph is hours
+      if ((time-timeStamp)<5*60) val=y;
+    }
+    //last point
+    if (val==0 ){
+      Double_t x,y;
+      gr->GetPoint(gr->GetN()-1,x,y);
+      Int_t time=TMath::Nint(sensor->GetStartTime()+x*3600); //time in graph is hours
+      if ((timeStamp-time)<5*60) val=y;
+    }
+  } else {
+    val=sensor->GetValue(timeStamp);
+  }
+  if (sigDigits>=0){
+    val=(Float_t)TMath::Floor(val * TMath::Power(10., sigDigits) + .5) / TMath::Power(10., sigDigits);
+  }
+  return val;
+}
+
+Float_t AliTPCcalibDB::GetDCSSensorMeanValue(AliDCSSensorArray *arr, const char * sensorName, Int_t sigDigits)
+{
+  //
+  // Get mean Value for a DCS sensor 'sensorName' during run 'run'
+  //
+  Float_t val=0;
+  const TString sensorNameString(sensorName);
+  AliDCSSensor *sensor = arr->GetSensor(sensorNameString);
+  if (!sensor) return val;
+
+  //use dcs graph if it exists
+  TGraph *gr=sensor->GetGraph();
+  if (gr){
+    val=gr->GetMean(2);
+  } else {
+    //if we don't have the dcs graph, try to get some meaningful information
+    if (!sensor->GetFit()) return val;
+    Int_t nKnots=sensor->GetFit()->GetKnots();
+    Double_t tMid=(sensor->GetEndTime()-sensor->GetStartTime())/2.;
+    for (Int_t iKnot=0;iKnot<nKnots;++iKnot){
+      if (sensor->GetFit()->GetX()[iKnot]>tMid/3600.) break;
+      val=(Float_t)sensor->GetFit()->GetY0()[iKnot];
+    }
+  }
+  if (sigDigits>=0){
+    // val/=10;
+    val=(Float_t)TMath::Floor(val * TMath::Power(10., sigDigits) + .5) / TMath::Power(10., sigDigits);
+    //    val*=10;
+  }
+  return val;
+}
+
+Float_t AliTPCcalibDB::GetChamberHighVoltage(Int_t run, Int_t sector, Int_t timeStamp, Int_t sigDigits, Bool_t current) {
+  //
+  // return the chamber HV for given run and time: 0-35 IROC, 36-72 OROC
+  // if timeStamp==-1 return mean value
+  //
+  Float_t val=0;
+  TString sensorName="";
+  TTimeStamp stamp(timeStamp);
+  AliDCSSensorArray* voltageArray = AliTPCcalibDB::Instance()->GetVoltageSensors(run);
+  if (!voltageArray || (sector<0) || (sector>71)) return val;
+  Char_t sideName='A';
+  if ((sector/18)%2==1) sideName='C';
+  if (sector<36){
+    //IROC
+    sensorName=Form("TPC_ANODE_I_%c%02d_VMEAS",sideName,sector%18);
+  }else{
+    //OROC
+    sensorName=Form("TPC_ANODE_O_%c%02d_0_VMEAS",sideName,sector%18);
+  }
+  if (current){
+    if (sector<36){
+      //IROC
+      sensorName=Form("TPC_ANODE_I_%c%02d_IMEAS",sideName,sector%18);
+  }else{
+      //OROC
+      sensorName=Form("TPC_ANODE_O_%c%02d_0_IMEAS",sideName,sector%18);
+    }
+
+  }
+  if (timeStamp==-1){
+    val=AliTPCcalibDB::GetDCSSensorMeanValue(voltageArray, sensorName.Data(),sigDigits);
+  } else {
+    val=AliTPCcalibDB::GetDCSSensorValue(voltageArray, timeStamp, sensorName.Data(),sigDigits);
+  }
+  return val;
+}
+Float_t AliTPCcalibDB::GetSkirtVoltage(Int_t run, Int_t sector, Int_t timeStamp, Int_t sigDigits)
+{
+  //
+  // Get the skirt voltage for 'run' at 'timeStamp' and 'sector': 0-35 IROC, 36-72 OROC
+  // type corresponds to the following: 0 - IROC A-Side; 1 - IROC C-Side; 2 - OROC A-Side; 3 - OROC C-Side
+  // if timeStamp==-1 return the mean value for the run
+  //
+  Float_t val=0;
+  TString sensorName="";
+  TTimeStamp stamp(timeStamp);
+  AliDCSSensorArray* voltageArray = AliTPCcalibDB::Instance()->GetVoltageSensors(run);
+  if (!voltageArray || (sector<0) || (sector>71)) return val;
+  Char_t sideName='A';
+  if ((sector/18)%2==1) sideName='C';
+  sensorName=Form("TPC_SKIRT_%c_VMEAS",sideName);
+  if (timeStamp==-1){
+    val=AliTPCcalibDB::GetDCSSensorMeanValue(voltageArray, sensorName.Data(),sigDigits);
+  } else {
+    val=AliTPCcalibDB::GetDCSSensorValue(voltageArray, timeStamp, sensorName.Data(),sigDigits);
+  }
+  return val;
+}
+
+Float_t AliTPCcalibDB::GetCoverVoltage(Int_t run, Int_t sector, Int_t timeStamp, Int_t sigDigits)
+{
+  //
+  // Get the cover voltage for run 'run' at time 'timeStamp'
+  // type corresponds to the following: 0 - IROC A-Side; 1 - IROC C-Side; 2 - OROC A-Side; 3 - OROC C-Side
+  // if timeStamp==-1 return the mean value for the run
+  //
+  Float_t val=0;
+  TString sensorName="";
+  TTimeStamp stamp(timeStamp);
+  AliDCSSensorArray* voltageArray = AliTPCcalibDB::Instance()->GetVoltageSensors(run);
+  if (!voltageArray || (sector<0) || (sector>71)) return val;
+  Char_t sideName='A';
+  if ((sector/18)%2==1) sideName='C';
+  if (sector<36){
+    //IROC
+    sensorName=Form("TPC_COVER_I_%c_VMEAS",sideName);
+  }else{
+    //OROC
+    sensorName=Form("TPC_COVER_O_%c_VMEAS",sideName);
+  }
+  if (timeStamp==-1){
+    val=AliTPCcalibDB::GetDCSSensorMeanValue(voltageArray, sensorName.Data(),sigDigits);
+  } else {
+    val=AliTPCcalibDB::GetDCSSensorValue(voltageArray, timeStamp, sensorName.Data(),sigDigits);
+  }
+  return val;
+}
+
+Float_t AliTPCcalibDB::GetGGoffsetVoltage(Int_t run, Int_t sector, Int_t timeStamp, Int_t sigDigits)
+{
+  //
+  // Get the GG offset voltage for run 'run' at time 'timeStamp'
+  // type corresponds to the following: 0 - IROC A-Side; 1 - IROC C-Side; 2 - OROC A-Side; 3 - OROC C-Side
+  // if timeStamp==-1 return the mean value for the run
+  //
+  Float_t val=0;
+  TString sensorName="";
+  TTimeStamp stamp(timeStamp);
+  AliDCSSensorArray* voltageArray = AliTPCcalibDB::Instance()->GetVoltageSensors(run);
+  if (!voltageArray || (sector<0) || (sector>71)) return val;
+  Char_t sideName='A';
+  if ((sector/18)%2==1) sideName='C';
+  if (sector<36){
+    //IROC
+    sensorName=Form("TPC_GATE_I_%c_OFF_VMEAS",sideName);
+  }else{
+    //OROC
+    sensorName=Form("TPC_GATE_O_%c_OFF_VMEAS",sideName);
+  }
+  if (timeStamp==-1){
+    val=AliTPCcalibDB::GetDCSSensorMeanValue(voltageArray, sensorName.Data(),sigDigits);
+  } else {
+    val=AliTPCcalibDB::GetDCSSensorValue(voltageArray, timeStamp, sensorName.Data(),sigDigits);
+  }
+  return val;
+}
+
+Float_t AliTPCcalibDB::GetGGnegVoltage(Int_t run, Int_t sector, Int_t timeStamp, Int_t sigDigits)
+{
+  //
+  // Get the GG offset voltage for run 'run' at time 'timeStamp'
+  // type corresponds to the following: 0 - IROC A-Side; 1 - IROC C-Side; 2 - OROC A-Side; 3 - OROC C-Side
+  // if timeStamp==-1 return the mean value for the run
+  //
+  Float_t val=0;
+  TString sensorName="";
+  TTimeStamp stamp(timeStamp);
+  AliDCSSensorArray* voltageArray = AliTPCcalibDB::Instance()->GetVoltageSensors(run);
+  if (!voltageArray || (sector<0) || (sector>71)) return val;
+  Char_t sideName='A';
+  if ((sector/18)%2==1) sideName='C';
+  if (sector<36){
+    //IROC
+    sensorName=Form("TPC_GATE_I_%c_NEG_VMEAS",sideName);
+  }else{
+    //OROC
+    sensorName=Form("TPC_GATE_O_%c_NEG_VMEAS",sideName);
+  }
+  if (timeStamp==-1){
+    val=AliTPCcalibDB::GetDCSSensorMeanValue(voltageArray, sensorName.Data(),sigDigits);
+  } else {
+    val=AliTPCcalibDB::GetDCSSensorValue(voltageArray, timeStamp, sensorName.Data(),sigDigits);
+  }
+  return val;
+}
+
+Float_t AliTPCcalibDB::GetGGposVoltage(Int_t run, Int_t sector, Int_t timeStamp, Int_t sigDigits)
+{
+  //
+  // Get the GG offset voltage for run 'run' at time 'timeStamp'
+  // type corresponds to the following: 0 - IROC A-Side; 1 - IROC C-Side; 2 - OROC A-Side; 3 - OROC C-Side
+  // if timeStamp==-1 return the mean value for the run
+  //
+  Float_t val=0;
+  TString sensorName="";
+  TTimeStamp stamp(timeStamp);
+  AliDCSSensorArray* voltageArray = AliTPCcalibDB::Instance()->GetVoltageSensors(run);
+  if (!voltageArray || (sector<0) || (sector>71)) return val;
+  Char_t sideName='A';
+  if ((sector/18)%2==1) sideName='C';
+  if (sector<36){
+    //IROC
+    sensorName=Form("TPC_GATE_I_%c_POS_VMEAS",sideName);
+  }else{
+    //OROC
+    sensorName=Form("TPC_GATE_O_%c_POS_VMEAS",sideName);
+  }
+  if (timeStamp==-1){
+    val=AliTPCcalibDB::GetDCSSensorMeanValue(voltageArray, sensorName.Data(),sigDigits);
+  } else {
+    val=AliTPCcalibDB::GetDCSSensorValue(voltageArray, timeStamp, sensorName.Data(),sigDigits);
+  }
+  return val;
+}
+
+Float_t AliTPCcalibDB::GetPressure(Int_t timeStamp, Int_t run, Int_t type){
+  //
+  // GetPressure for given time stamp and runt
+  //
+  TTimeStamp stamp(timeStamp);
+  AliDCSSensor * sensor = Instance()->GetPressureSensor(run,type);
+  if (!sensor) return 0;
+  return sensor->GetValue(stamp);
+}
+
+Float_t AliTPCcalibDB::GetL3Current(Int_t run, Int_t statType){
+  //
+  // return L3 current
+  // stat type is: AliGRPObject::Stats: kMean = 0, kTruncMean = 1, kMedian = 2, kSDMean = 3, kSDMedian = 4
+  //
+  Float_t current=-1;
+  AliGRPObject *grp=AliTPCcalibDB::GetGRP(run);
+  if (grp) current=grp->GetL3Current((AliGRPObject::Stats)statType);
+  return current;
+}
+
+Float_t AliTPCcalibDB::GetBz(Int_t run){
+  //
+  // calculate BZ in T from L3 current
+  //
+  Float_t bz=-1;
+  Float_t current=AliTPCcalibDB::GetL3Current(run);
+  if (current>-1) bz=5*current/30000.*.1;
+  return bz;
+}
+
+Char_t  AliTPCcalibDB::GetL3Polarity(Int_t run) {
+  //
+  // get l3 polarity from GRP
+  //
+  Char_t pol=-100;
+  AliGRPObject *grp=AliTPCcalibDB::GetGRP(run);
+  if (grp) pol=grp->GetL3Polarity();
+  return pol;
+}
+
+TString AliTPCcalibDB::GetRunType(Int_t run){
+  //
+  // return run type from grp
+  //
+
+//   TString type("UNKNOWN");
+  AliGRPObject *grp=AliTPCcalibDB::GetGRP(run);
+  if (grp) return grp->GetRunType();
+  return "UNKNOWN";
+}
+
+Float_t AliTPCcalibDB::GetValueGoofie(Int_t timeStamp, Int_t run, Int_t type){
+  //
+  // GetPressure for given time stamp and runt
+  //
+  TTimeStamp stamp(timeStamp);
+  AliDCSSensorArray* goofieArray = AliTPCcalibDB::Instance()->GetGoofieSensors(run);
+  if (!goofieArray) return 0;
+  AliDCSSensor *sensor = goofieArray->GetSensor(type);
+  return sensor->GetValue(stamp);
+}
+
+
+
+
+
+
+Bool_t  AliTPCcalibDB::GetTemperatureFit(Int_t timeStamp, Int_t run, Int_t side,TVectorD& fit){
+  //
+  // GetTmeparature fit at parameter for given time stamp
+  //
+  TTimeStamp tstamp(timeStamp);
+  AliTPCSensorTempArray* tempArray  = Instance()->GetTemperatureSensor(run);
+  if (! tempArray) return kFALSE;
+  AliTPCTempMap * tempMap = new AliTPCTempMap(tempArray);
+  TLinearFitter * fitter = tempMap->GetLinearFitter(3,side,tstamp);
+  if (fitter){
+    fitter->Eval(); 
+    fitter->GetParameters(fit);
+  }
+  delete fitter;
+  delete tempMap;
+  if (!fitter) return kFALSE;
+  return kTRUE;
+}
+
+Float_t AliTPCcalibDB::GetTemperature(Int_t timeStamp, Int_t run, Int_t side){
+  //
+  // Get mean temperature
+  // 
+  TVectorD vec(5);
+  if (side==0) {
+    GetTemperatureFit(timeStamp,run,0,vec);
+    return vec[0];
+  }
+  if (side==1){
+    GetTemperatureFit(timeStamp,run,0,vec);
+    return vec[0];
+  }
+  return 0;
+}
+
+
+Double_t AliTPCcalibDB::GetPTRelative(UInt_t timeSec, Int_t run, Int_t side){
+  //
+  // Get relative P/T 
+  // time - absolute time
+  // run  - run number
+  // side - 0 - A side   1-C side
+  AliTPCCalibVdrift * vdrift =  Instance()->GetVdrift(run);
+  if (!vdrift) return 0;
+  return vdrift->GetPTRelative(timeSec,side);
+}
+
+AliGRPObject * AliTPCcalibDB::MakeGRPObjectFromMap(TMap *map){
+  //
+  // Function to covert old GRP run information from TMap to GRPObject
+  //
+  //  TMap * map = AliTPCcalibDB::GetGRPMap(52406);
+  if (!map) return 0;
+  AliDCSSensor * sensor = 0;
+  TObject *osensor=0;
+  osensor = ((*map)("fP2Pressure"));
+  sensor  =dynamic_cast<AliDCSSensor *>(osensor); 
+  //
+  if (!sensor) return 0;
+  //
+  AliDCSSensor * sensor2 = new AliDCSSensor(*sensor);
+  osensor = ((*map)("fCavernPressure"));
+  TGraph * gr = new TGraph(2);
+  gr->GetX()[0]= -100000.;
+  gr->GetX()[1]= 1000000.;
+  gr->GetY()[0]= atof(osensor->GetName());
+  gr->GetY()[1]= atof(osensor->GetName());
+  sensor2->SetGraph(gr);
+  sensor2->SetFit(0);
+  
+
+  AliGRPObject *grpRun = new AliGRPObject; 
+  grpRun->ReadValuesFromMap(map);
+  grpRun->SetCavernAtmosPressure(sensor2);
+  grpRun->SetCavernAtmosPressure(sensor2);
+  grpRun->SetSurfaceAtmosPressure(sensor);
+  return grpRun;
+}
+
+Bool_t AliTPCcalibDB::CreateGUITree(Int_t run, const char* filename)
+{
+  //
+  // Create a gui tree for run number 'run'
+  //
+
+  if (!AliCDBManager::Instance()->GetDefaultStorage()){
+    AliLog::Message(AliLog::kError, "Default Storage not set. Cannot create Calibration Tree!",
+                    MODULENAME(), "AliTPCcalibDB", FUNCTIONNAME(), __FILE__, __LINE__);
+    return kFALSE;
+  }
+  //db instance
+  AliTPCcalibDB *db=AliTPCcalibDB::Instance();
+  // retrieve cal pad objects
+  db->SetRun(run);
+  db->CreateGUITree(filename);
+  return kTRUE;
+}
+
+Bool_t AliTPCcalibDB::CreateGUITree(const char* filename){
+  //
+  //
+  //
+  if (!AliCDBManager::Instance()->GetDefaultStorage()){
+    AliError("Default Storage not set. Cannot create calibration Tree!");
+    return kFALSE;
+  }
+  UpdateNonRec();  // load all infromation now
+
+  AliTPCPreprocessorOnline prep;
+  //noise and pedestals
+  if (GetPedestals()) prep.AddComponent(new AliTPCCalPad(*(GetPedestals())));
+  if (GetPadNoise() ) prep.AddComponent(new AliTPCCalPad(*(GetPadNoise())));
+  //pulser data
+  if (GetPulserTmean()) prep.AddComponent(new AliTPCCalPad(*(GetPulserTmean())));
+  if (GetPulserTrms() ) prep.AddComponent(new AliTPCCalPad(*(GetPulserTrms())));
+  if (GetPulserQmean()) prep.AddComponent(new AliTPCCalPad(*(GetPulserQmean())));
+  //CE data
+  if (GetCETmean()) prep.AddComponent(new AliTPCCalPad(*(GetCETmean())));
+  if (GetCETrms() ) prep.AddComponent(new AliTPCCalPad(*(GetCETrms())));
+  if (GetCEQmean()) prep.AddComponent(new AliTPCCalPad(*(GetCEQmean())));
+  //Altro data
+  if (GetALTROAcqStart() ) prep.AddComponent(new AliTPCCalPad(*(GetALTROAcqStart() )));
+  if (GetALTROZsThr()    ) prep.AddComponent(new AliTPCCalPad(*(GetALTROZsThr()    )));
+  if (GetALTROFPED()     ) prep.AddComponent(new AliTPCCalPad(*(GetALTROFPED()     )));
+  if (GetALTROAcqStop()  ) prep.AddComponent(new AliTPCCalPad(*(GetALTROAcqStop()  )));
+  if (GetALTROMasked()   ) prep.AddComponent(new AliTPCCalPad(*(GetALTROMasked()   )));
+  //QA
+  AliTPCdataQA *dataQA=GetDataQA();
+  if (dataQA) {
+    if (dataQA->GetNLocalMaxima())
+      prep.AddComponent(new AliTPCCalPad(*(dataQA->GetNLocalMaxima())));
+    if (dataQA->GetMaxCharge())
+      prep.AddComponent(new AliTPCCalPad(*(dataQA->GetMaxCharge())));
+    if (dataQA->GetMeanCharge())
+      prep.AddComponent(new AliTPCCalPad(*(dataQA->GetMeanCharge())));
+    if (dataQA->GetNoThreshold())
+      prep.AddComponent(new AliTPCCalPad(*(dataQA->GetNoThreshold())));
+    if (dataQA->GetNTimeBins())
+      prep.AddComponent(new AliTPCCalPad(*(dataQA->GetNTimeBins())));
+    if (dataQA->GetNPads())
+      prep.AddComponent(new AliTPCCalPad(*(dataQA->GetNPads())));
+    if (dataQA->GetTimePosition())
+      prep.AddComponent(new AliTPCCalPad(*(dataQA->GetTimePosition())));
+  }
+  
+  //
+  TString file(filename);
+  if (file.IsNull()) file=Form("guiTreeRun_%lld.root",fRun);
+  prep.DumpToFile(file.Data());
+  return kTRUE;
+}
+
+Bool_t AliTPCcalibDB::CreateRefFile(Int_t run, const char* filename)
+{
+  //
+  // Create a gui tree for run number 'run'
+  //
+  
+  if (!AliCDBManager::Instance()->GetDefaultStorage()){
+    AliLog::Message(AliLog::kError, "Default Storage not set. Cannot create Calibration Tree!",
+                    MODULENAME(), "AliTPCcalibDB", FUNCTIONNAME(), __FILE__, __LINE__);
+    return kFALSE;
+  }
+  TString file(filename);
+  if (file.IsNull()) file=Form("RefCalPads_%d.root",run);
+  TDirectory *currDir=gDirectory;
+  //db instance
+  AliTPCcalibDB *db=AliTPCcalibDB::Instance();
+  // retrieve cal pad objects
+  db->SetRun(run);
+  //open file
+  TFile f(file.Data(),"recreate");
+  //noise and pedestals
+  db->GetPedestals()->Write("Pedestals");
+  db->GetPadNoise()->Write("PadNoise");
+  //pulser data
+  db->GetPulserTmean()->Write("PulserTmean");
+  db->GetPulserTrms()->Write("PulserTrms");
+  db->GetPulserQmean()->Write("PulserQmean");
+  //CE data
+  db->GetCETmean()->Write("CETmean");
+  db->GetCETrms()->Write("CETrms");
+  db->GetCEQmean()->Write("CEQmean");
+  //Altro data
+  db->GetALTROAcqStart() ->Write("ALTROAcqStart");
+  db->GetALTROZsThr()    ->Write("ALTROZsThr");
+  db->GetALTROFPED()     ->Write("ALTROFPED");
+  db->GetALTROAcqStop()  ->Write("ALTROAcqStop");
+  db->GetALTROMasked()   ->Write("ALTROMasked");
+  //
+  f.Close();
+  currDir->cd();
+  return kTRUE;
+}
+
+
+
+Double_t AliTPCcalibDB::GetVDriftCorrectionTime(Int_t timeStamp, Int_t run, Int_t /*side*/, Int_t mode){
+  //
+  // Get time dependent drift velocity correction
+  // multiplication factor        vd = vdnom *(1+vdriftcorr)
+  // Arguments:
+  // mode determines the algorith how to combine the Laser Track, LaserCE and physics tracks
+  // timestamp - timestamp
+  // run       - run number
+  // side      - the drift velocity per side (possible for laser and CE)
+  //
+  // Notice - Extrapolation outside of calibration range  - using constant function
+  //
+  Double_t result=0;
+  // mode 1  automatic mode - according to the distance to the valid calibration
+  //                        -  
+  Double_t deltaP=0,  driftP=0,      wP  = 0.;
+  Double_t deltaITS=0,driftITS=0,    wITS= 0.;
+  Double_t deltaLT=0, driftLT=0,     wLT = 0.;
+  Double_t deltaCE=0, driftCE=0,     wCE = 0.;
+  driftP  = fDButil->GetVDriftTPC(deltaP,run,timeStamp); 
+  driftITS= fDButil->GetVDriftTPCITS(deltaITS,run,timeStamp);
+  driftCE = fDButil->GetVDriftTPCCE(deltaCE, run,timeStamp,36000,2);
+  driftLT = fDButil->GetVDriftTPCLaserTracks(deltaLT,run,timeStamp,36000,2);
+  deltaITS = TMath::Abs(deltaITS);
+  deltaP   = TMath::Abs(deltaP);
+  deltaLT  = TMath::Abs(deltaLT);
+  deltaCE  = TMath::Abs(deltaCE);
+  if (mode==1) {
+    const Double_t kEpsilon=0.00000000001;
+    const Double_t kdeltaT=360.; // 10 minutes
+    if(TMath::Abs(deltaITS) < 12*kdeltaT) {
+      result = driftITS;
+    } else {
+    wITS  = 64.*kdeltaT/(deltaITS +kdeltaT);
+    wLT   = 16.*kdeltaT/(deltaLT  +kdeltaT);
+    wP    = 0. *kdeltaT/(deltaP   +kdeltaT);
+    wCE   = 1. *kdeltaT/(deltaCE  +kdeltaT);
+    //
+    //
+    if (TMath::Abs(driftP)<kEpsilon)  wP=0;  // invalid calibration
+    if (TMath::Abs(driftITS)<kEpsilon)wITS=0;  // invalid calibration
+    if (TMath::Abs(driftLT)<kEpsilon) wLT=0;  // invalid calibration
+    if (TMath::Abs(driftCE)<kEpsilon) wCE=0;  // invalid calibration
+    if (wP+wITS+wLT+wCE<kEpsilon) return 0;
+    result = (driftP*wP+driftITS*wITS+driftLT*wLT+driftCE*wCE)/(wP+wITS+wLT+wCE);
+   }
+   
+
+  }
+
+  return result;
+}
+
+Double_t AliTPCcalibDB::GetTime0CorrectionTime(Int_t timeStamp, Int_t run, Int_t /*side*/, Int_t mode){
+  //
+  // Get time dependent time 0 (trigger delay in cm) correction
+  // additive correction        time0 = time0+ GetTime0CorrectionTime
+  // Value etracted combining the vdrift correction using laser tracks and CE and the physics track matchin
+  // Arguments:
+  // mode determines the algorith how to combine the Laser Track and physics tracks
+  // timestamp - timestamp
+  // run       - run number
+  // side      - the drift velocity per side (possible for laser and CE)
+  //
+  // Notice - Extrapolation outside of calibration range  - using constant function
+  //
+  Double_t result=0;
+  if (mode==2) {
+    // TPC-TPC mode
+    result=fDButil->GetTriggerOffsetTPC(run,timeStamp);    
+    result  *=fParam->GetZLength();
+  }
+  if (mode==1){
+    // TPC-ITS mode
+    Double_t dist=0;
+    result= -fDButil->GetTime0TPCITS(dist, run, timeStamp)*fParam->GetDriftV()/1000000.;
+  }
+  return result;
+
+}
+
+
+
+
+Double_t AliTPCcalibDB::GetVDriftCorrectionGy(Int_t timeStamp, Int_t run, Int_t side, Int_t /*mode*/){
+  //
+  // Get global y correction drift velocity correction factor
+  // additive factor        vd = vdnom*(1+GetVDriftCorrectionGy *gy)
+  // Value etracted combining the vdrift correction using laser tracks and CE or TPC-ITS
+  // Arguments:
+  // mode determines the algorith how to combine the Laser Track, LaserCE or TPC-ITS
+  // timestamp - timestamp
+  // run       - run number
+  // side      - the drift velocity gy correction per side (CE and Laser tracks)
+  //
+  // Notice - Extrapolation outside of calibration range  - using constant function
+  // 
+  if (run<=0 && fTransform) run = fTransform->GetCurrentRunNumber();
+  UpdateRunInformations(run,kFALSE);
+  TObjArray *array =AliTPCcalibDB::Instance()->GetTimeVdriftSplineRun(run);
+  if (!array) return 0;
+  Double_t result=0;
+
+  // use TPC-ITS if present
+  TGraphErrors *gr= (TGraphErrors*)array->FindObject("ALIGN_ITSB_TPC_VDGY");
+  if(gr) { 
+    result = AliTPCcalibDButil::EvalGraphConst(gr,timeStamp);
+
+    // transform from [(cm/mus)/ m] to [1/cm]
+    result /= (fParam->GetDriftV()/1000000.);
+    result /= 100.;
+
+    //printf("result %e \n", result);
+    return result; 
+  }
+
+  // use laser if ITS-TPC not present
+  TGraphErrors *laserA= (TGraphErrors*)array->FindObject("GRAPH_MEAN_GLOBALYGRADIENT_LASER_ALL_A");
+  TGraphErrors *laserC= (TGraphErrors*)array->FindObject("GRAPH_MEAN_GLOBALYGRADIENT_LASER_ALL_C");
+  
+  if (laserA && laserC){
+   result= (laserA->Eval(timeStamp)+laserC->Eval(timeStamp))*0.5;
+  }
+  if (laserA && side==0){
+    result = (laserA->Eval(timeStamp));
+  }
+  if (laserC &&side==1){
+    result = (laserC->Eval(timeStamp));
+  }
+  //printf("laser result %e \n", -result/250.);
+
+  return -result/250.; //normalized before
+}
+
+AliTPCCalPad* AliTPCcalibDB::MakeDeadMap(Double_t notInMap, const char* nameMappingFile) {
+//
+//   Read list of active DDLs from OCDB entry
+//   Generate and return AliTPCCalPad containing 1 for all pads in active DDLs,
+//   0 for all pads in non-active DDLs. 
+//   For DDLs with missing status information (no DCS input point to Shuttle),
+//     the value of the AliTPCCalPad entry is determined by the parameter
+//     notInMap (default value 1)
+//
+  char chinfo[1000];
+   
+  TFile *fileMapping = new TFile(nameMappingFile, "read");
+  AliTPCmapper *mapping = (AliTPCmapper*) fileMapping->Get("tpcMapping");
+  if (!mapping) {
+    sprintf(chinfo,"Failed to get mapping object from %s.  ...\n", nameMappingFile);
+    AliError (chinfo);
+    return 0;
+  }
+  
+  AliTPCCalPad *deadMap = new AliTPCCalPad("deadMap","deadMap");
+  if (!deadMap) {
+     AliError("Failed to allocate dead map AliTPCCalPad");
+     return 0;
+  }  
+  
+  /// get list of active DDLs from OCDB entry
+  Int_t idDDL=0;
+  if (!fALTROConfigData ) {
+     AliError("No ALTRO config OCDB entry available");
+     return 0; 
+  }
+  TMap *activeDDL = (TMap*)fALTROConfigData->FindObject("DDLArray");
+  TObjString *ddlArray=0;
+  if (activeDDL) {
+    ddlArray = (TObjString*)activeDDL->GetValue("DDLArray");
+    if (!ddlArray) {
+      AliError("Empty list of active DDLs in OCDB entry");
+      return 0;
+    }
+  } else { 
+    AliError("List of active DDLs not available in OCDB entry");
+    return 0;
+  }
+  TString arrDDL=ddlArray->GetString();
+  Int_t offset = mapping->GetTpcDdlOffset();
+  Double_t active;
+  for (Int_t i=0; i<mapping->GetNumDdl(); i++) {
+    idDDL= i+offset;
+    Int_t patch = mapping->GetPatchFromEquipmentID(idDDL);   
+    Int_t roc=mapping->GetRocFromEquipmentID(idDDL);
+    AliTPCCalROC *calRoc=deadMap->GetCalROC(roc);
+    if (calRoc) {
+     for ( Int_t branch = 0; branch < 2; branch++ ) {
+      for ( Int_t fec = 0; fec < mapping->GetNfec(patch, branch); fec++ ) {
+        for ( Int_t altro = 0; altro < 8; altro++ ) {
+         for ( Int_t channel = 0; channel < 16; channel++ ) {
+           Int_t hwadd     = mapping->CodeHWAddress(branch, fec, altro, channel);
+           Int_t row       = mapping->GetPadRow(patch, hwadd);        // row in a ROC (IROC or OROC)
+//              Int_t globalrow = mapping.GetGlobalPadRow(patch, hwadd);  // row in full sector (IROC plus OROC)
+           Int_t pad       = mapping->GetPad(patch, hwadd);
+           if (!TString(arrDDL[i]).IsDigit()) {
+             active = notInMap;
+           } else { 
+              active=TString(arrDDL[i]).Atof();
+          }
+           calRoc->SetValue(row,pad,active);
+         } // end channel for loop
+        } // end altro for loop
+      } // end fec for loop
+     } // end branch for loop
+    } // valid calROC 
+   } // end loop on active DDLs
+   return deadMap;
+}
+
+
+
+AliTPCCorrection * AliTPCcalibDB::GetTPCComposedCorrection(Float_t field) const{
+  //
+  // GetComposed correction for given field setting
+  //
+  if (!fComposedCorrectionArray) return 0;
+  if (field>0.1) return (AliTPCCorrection *)fComposedCorrectionArray->At(1);
+  if (field<-0.1) return (AliTPCCorrection *)fComposedCorrectionArray->At(2);
+  return (AliTPCCorrection *)fComposedCorrectionArray->At(0);
+  
+}
+