[u/mrichter/AliRoot.git] / TPC / AliTPCcalibCalib.cxx

/**************************************************************************
 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 *                                                                        *
 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
 *                                                                        *
 * Permission to use, copy, modify and distribute this software and its   *
 * documentation strictly for non-commercial purposes is hereby granted   *
 * without fee, provided that the above copyright notice appears in all   *
 * copies and that both the copyright notice and this permission notice   *
 * appear in the supporting documentation. The authors make no claims     *
 * about the suitability of this software for any purpose. It is          *
 * provided "as is" without express or implied warranty.                  *
 **************************************************************************/


///////////////////////////////////////////////////////////////////////////////
//                                                                           //
//   Component for redoing the reconstruction from the clusters and tracks
//      
//   The new calibration data used 
//
//   In reality it overwrites the content of the ESD 
//    

/*

  gSystem->Load("libANALYSIS");
  gSystem->Load("libTPCcalib");
  //
  gSystem->AddIncludePath("-I$ALICE_ROOT/TPC/macros");
  gROOT->LoadMacro("$ALICE_ROOT/TPC/macros/AliXRDPROOFtoolkit.cxx+")
  AliXRDPROOFtoolkit tool; 
  TChain * chainCl = tool.MakeChain("calib.txt","Clusters",0,1);
  chainCl->Lookup();
  TChain * chainTr = tool.MakeChain("calib.txt","Tracks",0,1);
  chainTr->Lookup();


*/


//  marian.ivanov@cern.ch
// 
#include "AliTPCcalibCalib.h"
#include "TSystem.h"
#include "TFile.h"
#include "TTreeStream.h"
#include "AliLog.h"
#include "TTimeStamp.h"
#include "AliESDEvent.h"
#include "AliESDfriend.h"
#include "AliESDtrack.h"
#include "AliTracker.h"
#include "AliTPCClusterParam.h"
#include "AliTPCParam.h"

#include "AliTPCcalibDB.h"
#include "AliTPCTransform.h"
#include "AliTPCRecoParam.h"
#include "AliTPCclusterMI.h"
#include "AliTPCseed.h"
#include "AliTPCPointCorrection.h"
#include <TGeoManager.h>
#include <TGeoPhysicalNode.h>
#include "TDatabasePDG.h"
ClassImp(AliTPCcalibCalib)

AliTPCcalibCalib::AliTPCcalibCalib():
AliTPCcalibBase(),
  fApplyExBCorrection(1),      // apply ExB correction
  fApplyTOFCorrection(1),      // apply TOF correction
  fApplyPositionCorrection(1), // apply position correction
  fApplySectorAlignment(1),    // apply sector alignment
  fApplyRPhiCorrection(1),     // apply R-Phi correction
  fApplyRCorrection(1)         // apply Radial correction

{
  //
  // Constructor
  //
}


AliTPCcalibCalib::AliTPCcalibCalib(const Text_t *name, const Text_t *title) 
  :AliTPCcalibBase(),
  fApplyExBCorrection(1),      // apply ExB correction
  fApplyTOFCorrection(1),      // apply TOF correction
  fApplyPositionCorrection(1), // apply position correction
  fApplySectorAlignment(1),    // apply sector alignment
  fApplyRPhiCorrection(1),     // apply R-Phi correction
  fApplyRCorrection(1)         // apply Radial correction
{  
  SetName(name);
  SetTitle(title);
}


AliTPCcalibCalib::AliTPCcalibCalib(const AliTPCcalibCalib&calib):
  AliTPCcalibBase(calib),
  fApplyExBCorrection(calib.GetApplyExBCorrection()),
  fApplyTOFCorrection(calib.GetApplyTOFCorrection()),
  fApplyPositionCorrection(calib.GetApplyPositionCorrection()),
  fApplySectorAlignment(calib.GetApplySectorAlignment()),
  fApplyRPhiCorrection(calib.GetApplyRPhiCorrection()),
  fApplyRCorrection(calib.GetApplyRCorrection())

{
  //
  // copy constructor
  //
}

AliTPCcalibCalib &AliTPCcalibCalib::operator=(const AliTPCcalibCalib&calib){
  //
  //
  //
  ((AliTPCcalibBase *)this)->operator=(calib);
  return *this;
}


AliTPCcalibCalib::~AliTPCcalibCalib() {
  //
  // destructor
  //
}


void     AliTPCcalibCalib::Process(AliESDEvent *event){
  //
  // 
  //
  if (!event) {
    return;
  }  
  AliESDfriend *ESDfriend=static_cast<AliESDfriend*>(event->FindListObject("AliESDfriend"));
  if (!ESDfriend) {
   return;
  }
  
  if (GetDebugLevel()>20) printf("Hallo world: Im here\n");
  Int_t ntracks=event->GetNumberOfTracks();   
  //AliTPCcalibDB::Instance()->SetExBField(fMagF);

  //
  //
  //

  for (Int_t i=0;i<ntracks;++i) {
    AliESDtrack *track = event->GetTrack(i);     
    AliESDfriendTrack *friendTrack = (AliESDfriendTrack*) ESDfriend->GetTrack(i);
    if (!friendTrack) continue;
    //track->SetFriendTrack(friendTrack);
    fCurrentFriendTrack=friendTrack;
    const AliExternalTrackParam * trackIn  = track->GetInnerParam();
    const AliExternalTrackParam * trackOut = track->GetOuterParam();
    AliExternalTrackParam * tpcOut   = (AliExternalTrackParam *)friendTrack->GetTPCOut();
    if (!trackIn) continue;
    if (!trackOut) continue;
    if (!tpcOut) continue;   
    TObject *calibObject;
    AliTPCseed *seed = 0;
    for (Int_t l=0;(calibObject=friendTrack->GetCalibObject(l));++l) {
      if ((seed=dynamic_cast<AliTPCseed*>(calibObject))) break;
    }
    if (!seed) continue;
    RefitTrack(track, seed, event->GetMagneticField());
    (*tpcOut)=*(track->GetOuterParam());  
  }
  return;
}

Bool_t  AliTPCcalibCalib::RefitTrack(AliESDtrack * track, AliTPCseed *seed, Float_t magesd){
  //
  // Refit track
  // if magesd==0 forget the curvature

  //
  // 0 - Setup transform object
  //
  static Int_t streamCounter=0;
  streamCounter++;
  AliESDfriendTrack *friendTrack = fCurrentFriendTrack;

  AliTPCTransform *transform = AliTPCcalibDB::Instance()->GetTransform() ;
  AliTPCParam     *param     = AliTPCcalibDB::Instance()->GetParameters();
  transform->SetCurrentRun(fRun);
  transform->SetCurrentTimeStamp((UInt_t)fTime);
  if(!fApplyExBCorrection) { // disable ExB correction in transform
    if(transform->GetCurrentRecoParam())
      transform->GetCurrentRecoParamNonConst()->SetUseExBCorrection(0);
  }
  if(!fApplyTOFCorrection) { // disable TOF correction in transform
    if(transform->GetCurrentRecoParam())
      transform->GetCurrentRecoParamNonConst()->SetUseTOFCorrection(kFALSE);
  }

  //
  // First apply calibration
  //
  //  AliTPCPointCorrection * corr =  AliTPCPointCorrection::Instance();
  for (Int_t irow=0;irow<159;irow++) {
    AliTPCclusterMI *cluster=seed->GetClusterPointer(irow);
    if (!cluster) continue; 
    AliTPCclusterMI cl0(*cluster);
    Double_t x[3]={cluster->GetRow(),cluster->GetPad(),cluster->GetTimeBin()};
    Int_t i[1]={cluster->GetDetector()};

    transform->Transform(x,i,0,1);
    //
    // get position correction
    //
    Int_t ipad=0;
    if (cluster->GetDetector()>35) ipad=1;
    Float_t dy =0;//AliTPCClusterParam::SPosCorrection(0,ipad,cluster->GetPad(),cluster->GetTimeBin(),cluster->GetZ(),cluster->GetSigmaY2(),cluster->GetSigmaZ2(),cluster->GetMax());
    Float_t dz =0;//AliTPCClusterParam::SPosCorrection(1,ipad,cluster->GetPad(),cluster->GetTimeBin(),cluster->GetZ(),cluster->GetSigmaY2(),cluster->GetSigmaZ2(),cluster->GetMax());
    //
    cluster->SetX(x[0]);
    cluster->SetY(x[1]);
    cluster->SetZ(x[2]);
    
    //
    // Apply alignemnt
    //
    if (transform->GetCurrentRecoParam()->GetUseSectorAlignment()){
      if (!param->IsGeoRead()) param->ReadGeoMatrices();
      TGeoHMatrix  *mat = param->GetClusterMatrix(cluster->GetDetector());
      //TGeoHMatrix  mat;
      Double_t pos[3]= {cluster->GetX(),cluster->GetY(),cluster->GetZ()};
      Double_t posC[3]={cluster->GetX(),cluster->GetY(),cluster->GetZ()};
      if (mat) mat->LocalToMaster(pos,posC);
      else{
	// chack Loading of Geo matrices from GeoManager - TEMPORARY FIX
      }
      cluster->SetX(posC[0]);
      cluster->SetY(posC[1]);
      cluster->SetZ(posC[2]);
    }


    if (fStreamLevel>2 && streamCounter<20*fStreamLevel ){
      // dump debug info if required
      TTreeSRedirector *cstream = GetDebugStreamer();
      if (cstream){
	(*cstream)<<"Clusters"<<
	  "run="<<fRun<<              //  run number
	  "event="<<fEvent<<          //  event number
	  "time="<<fTime<<            //  time stamp of event
	  "trigger="<<fTrigger<<      //  trigger
	  "triggerClass="<<&fTriggerClass<<      //  trigger	  
	  "mag="<<fMagF<<             //  magnetic field
	  "cl0.="<<&cl0<<
	  "cl.="<<cluster<<
	  "cy="<<dy<<
	  "cz="<<dz<<
	  "\n";
      }
    }
  }
  //
  //
  //
  Int_t ncl = seed->GetNumberOfClusters();
  const Double_t kResetCov=4.;
  const Double_t kSigma=5.;
  Double_t covar[15];
  for (Int_t i=0;i<15;i++) covar[i]=0;
  covar[0]=kSigma*kSigma;
  covar[2]=kSigma*kSigma;
  covar[5]=kSigma*kSigma/Float_t(ncl*ncl);
  covar[9]=kSigma*kSigma/Float_t(ncl*ncl);
  covar[14]=0.2*0.2;
  if (TMath::Abs(magesd)<0.05) {
     covar[14]=0.025*0.025;
  }
  // 
  // And now do refit
  //
  AliExternalTrackParam * trackInOld  = (AliExternalTrackParam*)track->GetInnerParam();
  AliExternalTrackParam * trackOuter = (AliExternalTrackParam*)track->GetOuterParam();
  AliExternalTrackParam * trackOutOld   = (AliExternalTrackParam *)friendTrack->GetTPCOut();
  Double_t mass =    TDatabasePDG::Instance()->GetParticle("pi+")->Mass();

    
  AliExternalTrackParam trackIn  = *trackOutOld;
  trackIn.ResetCovariance(kResetCov);
  trackIn.AddCovariance(covar);
  if (TMath::Abs(magesd)<0.05) {
    ((Double_t&)(trackIn.GetParameter()[4]))=0.000000001;
    ((Double_t&)(trackIn.GetCovariance()[14]))=covar[14];  // fix the line
  }  

  Double_t xyz[3];
  Int_t nclIn=0,nclOut=0;
  //
  // Refit in
  //
  for (Int_t irow=159; irow>0; irow--){
    AliTPCclusterMI *cl=seed->GetClusterPointer(irow);
    if (!cl) continue;
    if (cl->GetX()<80) continue;
    Int_t sector = cl->GetDetector();
    Float_t dalpha = TMath::DegToRad()*(sector%18*20.+10.)-trackIn.GetAlpha();
    if (TMath::Abs(dalpha)>0.01){
      if (!trackIn.Rotate(TMath::DegToRad()*(sector%18*20.+10.))) break;
    }
    Double_t r[3]={cl->GetX(),cl->GetY(),cl->GetZ()};
    Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation
    AliTPCseed::GetError(cl, &trackIn,cov[0],cov[2]);
    cov[0]*=cov[0];
    cov[2]*=cov[2];
    trackIn.GetXYZ(xyz);
    //    Double_t bz = AliTracker::GetBz(xyz);

    //    if (!trackIn.PropagateTo(r[0],bz)) continue;
    if (!AliTracker::PropagateTrackToBxByBz(&trackIn, r[0],mass,1.,kFALSE)) continue;

    if (RejectCluster(cl,&trackIn)) continue;
    nclIn++;
    trackIn.Update(&r[1],cov);    
  }
  //
  AliExternalTrackParam trackOut = trackIn;
  trackOut.ResetCovariance(kResetCov);
  trackOut.AddCovariance(covar);
  if (TMath::Abs(magesd)<0.05) {
    ((Double_t&)(trackOut.GetParameter()[4]))=0.000000001;
    ((Double_t&)(trackOut.GetCovariance()[14]))=covar[14];  // fix the line
  }

  //
  // Refit out
  //
  //Bool_t lastEdge=kFALSE;
  for (Int_t irow=0; irow<160; irow++){
    AliTPCclusterMI *cl=seed->GetClusterPointer(irow);
    if (!cl) continue;
    if (cl->GetX()<80) continue;
    Int_t sector = cl->GetDetector();
    Float_t dalpha = TMath::DegToRad()*(sector%18*20.+10.)-trackOut.GetAlpha();

    if (TMath::Abs(dalpha)>0.01){
      if (!trackOut.Rotate(TMath::DegToRad()*(sector%18*20.+10.))) break;
    }
    Double_t r[3]={cl->GetX(),cl->GetY(),cl->GetZ()};

    Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation    
    AliTPCseed::GetError(cl, &trackOut,cov[0],cov[2]);
    cov[0]*=cov[0];
    cov[2]*=cov[2];
    trackOut.GetXYZ(xyz);
    //Double_t bz = AliTracker::GetBz(xyz);
    //    if (!trackOut.PropagateTo(r[0],bz)) continue;
    if (!AliTracker::PropagateTrackToBxByBz(&trackOut, r[0],mass,1.,kFALSE)) continue;

    if (RejectCluster(cl,&trackOut)) continue;
    nclOut++;
    trackOut.Update(&r[1],cov);    	
    //if (cl->GetType()<0) lastEdge=kTRUE;
    //if (cl->GetType()>=0) lastEdge=kFALSE;    
  }
  //
  //
  //
  nclIn=0;
  trackIn  = trackOut;
  trackIn.ResetCovariance(kResetCov);
  if (TMath::Abs(magesd)<0.05) {
    ((Double_t&)(trackIn.GetParameter()[4]))=0.000000001;
    ((Double_t&)(trackIn.GetCovariance()[14]))=covar[14];  // fix the line
  }
  //
  // Refit in one more time
  //
  for (Int_t irow=159; irow>0; irow--){
    AliTPCclusterMI *cl=seed->GetClusterPointer(irow);
    if (!cl) continue;
    if (cl->GetX()<80) continue;
    Int_t sector = cl->GetDetector();
    Float_t dalpha = TMath::DegToRad()*(sector%18*20.+10.)-trackIn.GetAlpha();
    if (TMath::Abs(dalpha)>0.01){
      if (!trackIn.Rotate(TMath::DegToRad()*(sector%18*20.+10.))) break;
    }
    Double_t r[3]={cl->GetX(),cl->GetY(),cl->GetZ()};
    Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation
    AliTPCseed::GetError(cl, &trackIn,cov[0],cov[2]);
    cov[0]*=cov[0];
    cov[2]*=cov[2];
    trackIn.GetXYZ(xyz);
    //Double_t bz = AliTracker::GetBz(xyz);

    //    if (!trackIn.PropagateTo(r[0],bz)) continue;
    if (!AliTracker::PropagateTrackToBxByBz(&trackIn, r[0],mass,1,kFALSE)) continue;

    if (RejectCluster(cl,&trackIn)) continue;
    nclIn++;
    trackIn.Update(&r[1],cov);    
  }


  trackIn.Rotate(trackInOld->GetAlpha());
  trackOut.Rotate(trackOutOld->GetAlpha());
  //
  trackInOld->GetXYZ(xyz);
  Double_t bz = AliTracker::GetBz(xyz);
  trackIn.PropagateTo(trackInOld->GetX(),bz);
  //
  trackOutOld->GetXYZ(xyz);
  bz = AliTracker::GetBz(xyz);  
  trackOut.PropagateTo(trackOutOld->GetX(),bz);
  

  if (fStreamLevel>0 && streamCounter<100*fStreamLevel){
    TTreeSRedirector *cstream = GetDebugStreamer();
    if (cstream){
      (*cstream)<<"Tracks"<<
	"run="<<fRun<<              //  run number
	"event="<<fEvent<<          //  event number
	"time="<<fTime<<            //  time stamp of event
	"trigger="<<fTrigger<<      //  trigger
	"triggerClass="<<&fTriggerClass<<      //  trigger
	"mag="<<fMagF<<             //  magnetic field
	"nclIn="<<nclIn<<
	"nclOut="<<nclOut<<
	"ncl="<<ncl<<
	"TrIn0.="<<trackInOld<<
	"TrOut0.="<<trackOutOld<<
	"TrIn1.="<<&trackIn<<
	"TrOut1.="<<&trackOut<<
	"\n";
    }
  }
  //
  // And now rewrite ESDtrack and TPC seed
  //
 
  (*trackInOld)  = trackIn;
  (*trackOutOld) = trackOut;
  (*trackOuter) = trackOut;
  AliExternalTrackParam *t = &trackIn;
  //track->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance());
  seed->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance());
  seed->SetNumberOfClusters((nclIn+nclOut)/2);
  return kTRUE;
}


Bool_t AliTPCcalibCalib::RejectCluster(AliTPCclusterMI* cl, AliExternalTrackParam * param){
  //
  // check the acceptance of cluster
  // Cut on edge effects
  //
  Float_t kEdgeCut=2.5;
  Float_t kSigmaCut=6;

  Bool_t isReject = kFALSE;
  Float_t edgeY = cl->GetX()*TMath::Tan(TMath::Pi()/18);
  Float_t dist  = edgeY - TMath::Abs(cl->GetY());
  if (param)  dist  = TMath::Abs(edgeY - TMath::Abs(param->GetY()));
  if (dist<kEdgeCut) isReject=kTRUE;

  Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation    
  AliTPCseed::GetError(cl, param,cov[0],cov[2]);
  if (param->GetSigmaY2()<0 || param->GetSigmaZ2()<0){
    AliError("Wrong parameters");
    return kFALSE;
  }
  Double_t py = (cl->GetY()-param->GetY())/TMath::Sqrt(cov[0]*cov[0]+param->GetSigmaY2());
  Double_t pz = (cl->GetZ()-param->GetZ())/TMath::Sqrt(cov[2]*cov[2]+param->GetSigmaZ2());
  //
  if ((py*py+pz*pz)>kSigmaCut*kSigmaCut) isReject=kTRUE;
  
  return isReject;
}
Commit	Line	Data
9dcfce73	1	/**************************************************************************
	2	* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
	3	* *
	4	* Author: The ALICE Off-line Project. *
	5	* Contributors are mentioned in the code where appropriate. *
	6	* *
	7	* Permission to use, copy, modify and distribute this software and its *
	8	* documentation strictly for non-commercial purposes is hereby granted *
	9	* without fee, provided that the above copyright notice appears in all *
	10	* copies and that both the copyright notice and this permission notice *
	11	* appear in the supporting documentation. The authors make no claims *
	12	* about the suitability of this software for any purpose. It is *
	13	* provided "as is" without express or implied warranty. *
	14	**************************************************************************/
	15
	16
	17	///////////////////////////////////////////////////////////////////////////////
	18	// //
	19	// Component for redoing the reconstruction from the clusters and tracks
	20	//
	21	// The new calibration data used
	22	//
	23	// In reality it overwrites the content of the ESD
	24	//
	25
3bf5c7a6	26	/*
	27
	28	gSystem->Load("libANALYSIS");
	29	gSystem->Load("libTPCcalib");
	30	//
	31	gSystem->AddIncludePath("-I$ALICE_ROOT/TPC/macros");
	32	gROOT->LoadMacro("$ALICE_ROOT/TPC/macros/AliXRDPROOFtoolkit.cxx+")
	33	AliXRDPROOFtoolkit tool;
11c7a854	34	TChain * chainCl = tool.MakeChain("calib.txt","Clusters",0,1);
	35	chainCl->Lookup();
	36	TChain * chainTr = tool.MakeChain("calib.txt","Tracks",0,1);
	37	chainTr->Lookup();
3bf5c7a6	38
	39
	40
	41	*/
	42
	43
	44
9dcfce73	45	// marian.ivanov@cern.ch
	46	//
	47	#include "AliTPCcalibCalib.h"
	48	#include "TSystem.h"
	49	#include "TFile.h"
	50	#include "TTreeStream.h"
	51	#include "AliLog.h"
	52	#include "TTimeStamp.h"
	53	#include "AliESDEvent.h"
	54	#include "AliESDfriend.h"
	55	#include "AliESDtrack.h"
	56	#include "AliTracker.h"
11c7a854	57	#include "AliTPCClusterParam.h"
b5738316	58	#include "AliTPCParam.h"
9dcfce73	59
	60	#include "AliTPCcalibDB.h"
	61	#include "AliTPCTransform.h"
7af539c6	62	#include "AliTPCRecoParam.h"
9dcfce73	63	#include "AliTPCclusterMI.h"
9dcfce73	64	#include "AliTPCseed.h"
15e48021	65	#include "AliTPCPointCorrection.h"
b5738316	66	#include <TGeoManager.h>
b5738316	67	#include <TGeoPhysicalNode.h>
be67055b	68	#include "TDatabasePDG.h"
9dcfce73	69	ClassImp(AliTPCcalibCalib)
	70
	71	AliTPCcalibCalib::AliTPCcalibCalib():
7af539c6	72	AliTPCcalibBase(),
	73	fApplyExBCorrection(1), // apply ExB correction
	74	fApplyTOFCorrection(1), // apply TOF correction
	75	fApplyPositionCorrection(1), // apply position correction
	76	fApplySectorAlignment(1), // apply sector alignment
	77	fApplyRPhiCorrection(1), // apply R-Phi correction
	78	fApplyRCorrection(1) // apply Radial correction
	79
9dcfce73	80	{
	81	//
	82	// Constructor
	83	//
	84	}
	85
	86
	87	AliTPCcalibCalib::AliTPCcalibCalib(const Text_t name, const Text_t title)
7af539c6	88	:AliTPCcalibBase(),
	89	fApplyExBCorrection(1), // apply ExB correction
	90	fApplyTOFCorrection(1), // apply TOF correction
	91	fApplyPositionCorrection(1), // apply position correction
	92	fApplySectorAlignment(1), // apply sector alignment
	93	fApplyRPhiCorrection(1), // apply R-Phi correction
	94	fApplyRCorrection(1) // apply Radial correction
9dcfce73	95	{
	96	SetName(name);
	97	SetTitle(title);
	98	}
	99
	100
	101	AliTPCcalibCalib::AliTPCcalibCalib(const AliTPCcalibCalib&calib):
7af539c6	102	AliTPCcalibBase(calib),
	103	fApplyExBCorrection(calib.GetApplyExBCorrection()),
	104	fApplyTOFCorrection(calib.GetApplyTOFCorrection()),
	105	fApplyPositionCorrection(calib.GetApplyPositionCorrection()),
	106	fApplySectorAlignment(calib.GetApplySectorAlignment()),
	107	fApplyRPhiCorrection(calib.GetApplyRPhiCorrection()),
	108	fApplyRCorrection(calib.GetApplyRCorrection())
	109
9dcfce73	110	{
	111	//
	112	// copy constructor
	113	//
	114	}
	115
	116	AliTPCcalibCalib &AliTPCcalibCalib::operator=(const AliTPCcalibCalib&calib){
	117	//
	118	//
	119	//
	120	((AliTPCcalibBase *)this)->operator=(calib);
	121	return *this;
	122	}
	123
	124
	125	AliTPCcalibCalib::~AliTPCcalibCalib() {
	126	//
	127	// destructor
	128	//
	129	}
	130
	131
	132	void AliTPCcalibCalib::Process(AliESDEvent *event){
	133	//
	134	//
	135	//
	136	if (!event) {
	137	return;
	138	}
	139	AliESDfriend ESDfriend=static_cast<AliESDfriend>(event->FindListObject("AliESDfriend"));
	140	if (!ESDfriend) {
	141	return;
	142	}
	143
	144	if (GetDebugLevel()>20) printf("Hallo world: Im here\n");
	145	Int_t ntracks=event->GetNumberOfTracks();
91350f5b	146	//AliTPCcalibDB::Instance()->SetExBField(fMagF);
5c3e0d17	147
9dcfce73	148	//
	149	//
	150	//
	151
	152	for (Int_t i=0;i<ntracks;++i) {
3e55050f	153	AliESDtrack *track = event->GetTrack(i);
e527a1b9	154	AliESDfriendTrack friendTrack = (AliESDfriendTrack) ESDfriend->GetTrack(i);
e527a1b9	155	if (!friendTrack) continue;
4486a91f	156	//track->SetFriendTrack(friendTrack);
4486a91f	157	fCurrentFriendTrack=friendTrack;
3e55050f	158	const AliExternalTrackParam * trackIn = track->GetInnerParam();
9dcfce73	159	const AliExternalTrackParam * trackOut = track->GetOuterParam();
3e55050f	160	AliExternalTrackParam * tpcOut = (AliExternalTrackParam *)friendTrack->GetTPCOut();
9dcfce73	161	if (!trackIn) continue;
9dcfce73	162	if (!trackOut) continue;
3e55050f	163	if (!tpcOut) continue;
9dcfce73	164	TObject *calibObject;
	165	AliTPCseed *seed = 0;
	166	for (Int_t l=0;(calibObject=friendTrack->GetCalibObject(l));++l) {
	167	if ((seed=dynamic_cast<AliTPCseed*>(calibObject))) break;
	168	}
	169	if (!seed) continue;
e527a1b9	170	RefitTrack(track, seed, event->GetMagneticField());
3e55050f	171	(tpcOut)=(track->GetOuterParam());
9dcfce73	172	}
	173	return;
	174	}
	175
38b1a1ca	176	Bool_t AliTPCcalibCalib::RefitTrack(AliESDtrack * track, AliTPCseed *seed, Float_t magesd){
9dcfce73	177	//
9dcfce73	178	// Refit track
38b1a1ca	179	// if magesd==0 forget the curvature
9dcfce73	180
15e48021	181	//
	182	// 0 - Setup transform object
	183	//
4486a91f	184	static Int_t streamCounter=0;
	185	streamCounter++;
	186	AliESDfriendTrack *friendTrack = fCurrentFriendTrack;
e527a1b9	187
15e48021	188	AliTPCTransform *transform = AliTPCcalibDB::Instance()->GetTransform() ;
b96c3aef	189	AliTPCParam *param = AliTPCcalibDB::Instance()->GetParameters();
15e48021	190	transform->SetCurrentRun(fRun);
15e48021	191	transform->SetCurrentTimeStamp((UInt_t)fTime);
7af539c6	192	if(!fApplyExBCorrection) { // disable ExB correction in transform
	193	if(transform->GetCurrentRecoParam())
	194	transform->GetCurrentRecoParamNonConst()->SetUseExBCorrection(0);
	195	}
	196	if(!fApplyTOFCorrection) { // disable TOF correction in transform
	197	if(transform->GetCurrentRecoParam())
	198	transform->GetCurrentRecoParamNonConst()->SetUseTOFCorrection(kFALSE);
	199	}
	200
9dcfce73	201	//
	202	// First apply calibration
	203	//
064244d8	204	// AliTPCPointCorrection * corr = AliTPCPointCorrection::Instance();
9dcfce73	205	for (Int_t irow=0;irow<159;irow++) {
	206	AliTPCclusterMI *cluster=seed->GetClusterPointer(irow);
	207	if (!cluster) continue;
	208	AliTPCclusterMI cl0(*cluster);
	209	Double_t x[3]={cluster->GetRow(),cluster->GetPad(),cluster->GetTimeBin()};
	210	Int_t i[1]={cluster->GetDetector()};
7af539c6	211
9dcfce73	212	transform->Transform(x,i,0,1);
11c7a854	213	//
	214	// get position correction
	215	//
	216	Int_t ipad=0;
	217	if (cluster->GetDetector()>35) ipad=1;
f26def9e	218	Float_t dy =0;//AliTPCClusterParam::SPosCorrection(0,ipad,cluster->GetPad(),cluster->GetTimeBin(),cluster->GetZ(),cluster->GetSigmaY2(),cluster->GetSigmaZ2(),cluster->GetMax());
f26def9e	219	Float_t dz =0;//AliTPCClusterParam::SPosCorrection(1,ipad,cluster->GetPad(),cluster->GetTimeBin(),cluster->GetZ(),cluster->GetSigmaY2(),cluster->GetSigmaZ2(),cluster->GetMax());
9dcfce73	220	//
	221	cluster->SetX(x[0]);
	222	cluster->SetY(x[1]);
	223	cluster->SetZ(x[2]);
b96c3aef	224
	225	//
	226	// Apply alignemnt
	227	//
b322e06a	228	if (transform->GetCurrentRecoParam()->GetUseSectorAlignment()){
b5738316	229	if (!param->IsGeoRead()) param->ReadGeoMatrices();
	230	TGeoHMatrix *mat = param->GetClusterMatrix(cluster->GetDetector());
	231	//TGeoHMatrix mat;
	232	Double_t pos[3]= {cluster->GetX(),cluster->GetY(),cluster->GetZ()};
	233	Double_t posC[3]={cluster->GetX(),cluster->GetY(),cluster->GetZ()};
	234	if (mat) mat->LocalToMaster(pos,posC);
	235	else{
	236	// chack Loading of Geo matrices from GeoManager - TEMPORARY FIX
	237	}
	238	cluster->SetX(posC[0]);
	239	cluster->SetY(posC[1]);
	240	cluster->SetZ(posC[2]);
	241	}
b96c3aef	242
	243
	244
4486a91f	245	if (fStreamLevel>2 && streamCounter<20*fStreamLevel ){
4486a91f	246	// dump debug info if required
9dcfce73	247	TTreeSRedirector *cstream = GetDebugStreamer();
	248	if (cstream){
	249	(*cstream)<<"Clusters"<<
108953e9	250	"run="<<fRun<< // run number
	251	"event="<<fEvent<< // event number
	252	"time="<<fTime<< // time stamp of event
	253	"trigger="<<fTrigger<< // trigger
15e48021	254	"triggerClass="<<&fTriggerClass<< // trigger
108953e9	255	"mag="<<fMagF<< // magnetic field
9dcfce73	256	"cl0.="<<&cl0<<
9dcfce73	257	"cl.="<<cluster<<
11c7a854	258	"cy="<<dy<<
11c7a854	259	"cz="<<dz<<
9dcfce73	260	"\n";
	261	}
	262	}
	263	}
15e48021	264	//
	265	//
	266	//
11c7a854	267	Int_t ncl = seed->GetNumberOfClusters();
b5738316	268	const Double_t kResetCov=4.;
b5738316	269	const Double_t kSigma=5.;
11c7a854	270	Double_t covar[15];
11c7a854	271	for (Int_t i=0;i<15;i++) covar[i]=0;
b5738316	272	covar[0]=kSigma*kSigma;
	273	covar[2]=kSigma*kSigma;
	274	covar[5]=kSigmakSigma/Float_t(nclncl);
	275	covar[9]=kSigmakSigma/Float_t(nclncl);
	276	covar[14]=0.2*0.2;
38b1a1ca	277	if (TMath::Abs(magesd)<0.05) {
	278	covar[14]=0.025*0.025;
	279	}
9dcfce73	280	//
	281	// And now do refit
	282	//
11c7a854	283	AliExternalTrackParam * trackInOld = (AliExternalTrackParam*)track->GetInnerParam();
e527a1b9	284	AliExternalTrackParam * trackOuter = (AliExternalTrackParam*)track->GetOuterParam();
e527a1b9	285	AliExternalTrackParam * trackOutOld = (AliExternalTrackParam *)friendTrack->GetTPCOut();
be67055b	286	Double_t mass = TDatabasePDG::Instance()->GetParticle("pi+")->Mass();
be67055b	287
e527a1b9	288
3e55050f	289
9dcfce73	290	AliExternalTrackParam trackIn = *trackOutOld;
b5738316	291	trackIn.ResetCovariance(kResetCov);
b5738316	292	trackIn.AddCovariance(covar);
38b1a1ca	293	if (TMath::Abs(magesd)<0.05) {
38b1a1ca	294	((Double_t&)(trackIn.GetParameter()[4]))=0.000000001;
b5738316	295	((Double_t&)(trackIn.GetCovariance()[14]))=covar[14]; // fix the line
38b1a1ca	296	}
b5738316	297
9dcfce73	298	Double_t xyz[3];
	299	Int_t nclIn=0,nclOut=0;
	300	//
15e48021	301	// Refit in
15e48021	302	//
15e48021	303	for (Int_t irow=159; irow>0; irow--){
	304	AliTPCclusterMI *cl=seed->GetClusterPointer(irow);
	305	if (!cl) continue;
	306	if (cl->GetX()<80) continue;
	307	Int_t sector = cl->GetDetector();
	308	Float_t dalpha = TMath::DegToRad()(sector%1820.+10.)-trackIn.GetAlpha();
91f8fa1d	309	if (TMath::Abs(dalpha)>0.01){
	310	if (!trackIn.Rotate(TMath::DegToRad()(sector%1820.+10.))) break;
	311	}
15e48021	312	Double_t r[3]={cl->GetX(),cl->GetY(),cl->GetZ()};
	313	Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation
	314	AliTPCseed::GetError(cl, &trackIn,cov[0],cov[2]);
	315	cov[0]*=cov[0];
	316	cov[2]*=cov[2];
	317	trackIn.GetXYZ(xyz);
be67055b	318	// Double_t bz = AliTracker::GetBz(xyz);
	319
	320	// if (!trackIn.PropagateTo(r[0],bz)) continue;
b322e06a	321	if (!AliTracker::PropagateTrackToBxByBz(&trackIn, r[0],mass,1.,kFALSE)) continue;
15e48021	322
15e48021	323	if (RejectCluster(cl,&trackIn)) continue;
	324	nclIn++;
	325	trackIn.Update(&r[1],cov);
	326	}
	327	//
	328	AliExternalTrackParam trackOut = trackIn;
b5738316	329	trackOut.ResetCovariance(kResetCov);
b5738316	330	trackOut.AddCovariance(covar);
38b1a1ca	331	if (TMath::Abs(magesd)<0.05) {
38b1a1ca	332	((Double_t&)(trackOut.GetParameter()[4]))=0.000000001;
b5738316	333	((Double_t&)(trackOut.GetCovariance()[14]))=covar[14]; // fix the line
38b1a1ca	334	}
b5738316	335
15e48021	336	//
9dcfce73	337	// Refit out
9dcfce73	338	//
15e48021	339	//Bool_t lastEdge=kFALSE;
9dcfce73	340	for (Int_t irow=0; irow<160; irow++){
	341	AliTPCclusterMI *cl=seed->GetClusterPointer(irow);
	342	if (!cl) continue;
	343	if (cl->GetX()<80) continue;
	344	Int_t sector = cl->GetDetector();
	345	Float_t dalpha = TMath::DegToRad()(sector%1820.+10.)-trackOut.GetAlpha();
	346
91f8fa1d	347	if (TMath::Abs(dalpha)>0.01){
	348	if (!trackOut.Rotate(TMath::DegToRad()(sector%1820.+10.))) break;
	349	}
9dcfce73	350	Double_t r[3]={cl->GetX(),cl->GetY(),cl->GetZ()};
91350f5b	351
	352	Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation
	353	AliTPCseed::GetError(cl, &trackOut,cov[0],cov[2]);
	354	cov[0]*=cov[0];
	355	cov[2]*=cov[2];
9dcfce73	356	trackOut.GetXYZ(xyz);
be67055b	357	//Double_t bz = AliTracker::GetBz(xyz);
be67055b	358	// if (!trackOut.PropagateTo(r[0],bz)) continue;
b322e06a	359	if (!AliTracker::PropagateTrackToBxByBz(&trackOut, r[0],mass,1.,kFALSE)) continue;
be67055b	360
42b40d07	361	if (RejectCluster(cl,&trackOut)) continue;
15e48021	362	nclOut++;
	363	trackOut.Update(&r[1],cov);
	364	//if (cl->GetType()<0) lastEdge=kTRUE;
	365	//if (cl->GetType()>=0) lastEdge=kFALSE;
9dcfce73	366	}
9dcfce73	367	//
9dcfce73	368	//
15e48021	369	//
	370	nclIn=0;
	371	trackIn = trackOut;
b5738316	372	trackIn.ResetCovariance(kResetCov);
	373	if (TMath::Abs(magesd)<0.05) {
	374	((Double_t&)(trackIn.GetParameter()[4]))=0.000000001;
	375	((Double_t&)(trackIn.GetCovariance()[14]))=covar[14]; // fix the line
	376	}
15e48021	377	//
	378	// Refit in one more time
	379	//
9dcfce73	380	for (Int_t irow=159; irow>0; irow--){
	381	AliTPCclusterMI *cl=seed->GetClusterPointer(irow);
	382	if (!cl) continue;
	383	if (cl->GetX()<80) continue;
	384	Int_t sector = cl->GetDetector();
	385	Float_t dalpha = TMath::DegToRad()(sector%1820.+10.)-trackIn.GetAlpha();
91f8fa1d	386	if (TMath::Abs(dalpha)>0.01){
	387	if (!trackIn.Rotate(TMath::DegToRad()(sector%1820.+10.))) break;
	388	}
9dcfce73	389	Double_t r[3]={cl->GetX(),cl->GetY(),cl->GetZ()};
9dcfce73	390	Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation
91350f5b	391	AliTPCseed::GetError(cl, &trackIn,cov[0],cov[2]);
	392	cov[0]*=cov[0];
	393	cov[2]*=cov[2];
	394	trackIn.GetXYZ(xyz);
be67055b	395	//Double_t bz = AliTracker::GetBz(xyz);
	396
	397	// if (!trackIn.PropagateTo(r[0],bz)) continue;
b322e06a	398	if (!AliTracker::PropagateTrackToBxByBz(&trackIn, r[0],mass,1,kFALSE)) continue;
9dcfce73	399
42b40d07	400	if (RejectCluster(cl,&trackIn)) continue;
15e48021	401	nclIn++;
9dcfce73	402	trackIn.Update(&r[1],cov);
9dcfce73	403	}
15e48021	404
15e48021	405
3bf5c7a6	406	trackIn.Rotate(trackInOld->GetAlpha());
	407	trackOut.Rotate(trackOutOld->GetAlpha());
	408	//
	409	trackInOld->GetXYZ(xyz);
	410	Double_t bz = AliTracker::GetBz(xyz);
	411	trackIn.PropagateTo(trackInOld->GetX(),bz);
	412	//
	413	trackOutOld->GetXYZ(xyz);
	414	bz = AliTracker::GetBz(xyz);
	415	trackOut.PropagateTo(trackOutOld->GetX(),bz);
	416
9dcfce73	417
4486a91f	418	if (fStreamLevel>0 && streamCounter<100*fStreamLevel){
9dcfce73	419	TTreeSRedirector *cstream = GetDebugStreamer();
	420	if (cstream){
	421	(*cstream)<<"Tracks"<<
108953e9	422	"run="<<fRun<< // run number
	423	"event="<<fEvent<< // event number
	424	"time="<<fTime<< // time stamp of event
	425	"trigger="<<fTrigger<< // trigger
15e48021	426	"triggerClass="<<&fTriggerClass<< // trigger
108953e9	427	"mag="<<fMagF<< // magnetic field
9dcfce73	428	"nclIn="<<nclIn<<
	429	"nclOut="<<nclOut<<
	430	"ncl="<<ncl<<
	431	"TrIn0.="<<trackInOld<<
	432	"TrOut0.="<<trackOutOld<<
	433	"TrIn1.="<<&trackIn<<
	434	"TrOut1.="<<&trackOut<<
	435	"\n";
	436	}
	437	}
3bf5c7a6	438	//
981e9de5	439	// And now rewrite ESDtrack and TPC seed
3bf5c7a6	440	//
	441
	442	(*trackInOld) = trackIn;
	443	(*trackOutOld) = trackOut;
e527a1b9	444	(*trackOuter) = trackOut;
3bf5c7a6	445	AliExternalTrackParam *t = &trackIn;
b322e06a	446	//track->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance());
981e9de5	447	seed->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance());
fe8454d9	448	seed->SetNumberOfClusters((nclIn+nclOut)/2);
2cfb8d90	449	return kTRUE;
9dcfce73	450	}
	451
	452
	453
	454	Bool_t AliTPCcalibCalib::RejectCluster(AliTPCclusterMI* cl, AliExternalTrackParam * param){
	455	//
	456	// check the acceptance of cluster
	457	// Cut on edge effects
	458	//
15e48021	459	Float_t kEdgeCut=2.5;
	460	Float_t kSigmaCut=6;
	461
9dcfce73	462	Bool_t isReject = kFALSE;
	463	Float_t edgeY = cl->GetX()*TMath::Tan(TMath::Pi()/18);
	464	Float_t dist = edgeY - TMath::Abs(cl->GetY());
	465	if (param) dist = TMath::Abs(edgeY - TMath::Abs(param->GetY()));
15e48021	466	if (dist<kEdgeCut) isReject=kTRUE;
	467
	468	Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation
	469	AliTPCseed::GetError(cl, param,cov[0],cov[2]);
91f8fa1d	470	if (param->GetSigmaY2()<0 \|\| param->GetSigmaZ2()<0){
d3ce44cb	471	AliError("Wrong parameters");
	472	return kFALSE;
	473	}
15e48021	474	Double_t py = (cl->GetY()-param->GetY())/TMath::Sqrt(cov[0]*cov[0]+param->GetSigmaY2());
	475	Double_t pz = (cl->GetZ()-param->GetZ())/TMath::Sqrt(cov[2]*cov[2]+param->GetSigmaZ2());
	476	//
	477	if ((pypy+pzpz)>kSigmaCut*kSigmaCut) isReject=kTRUE;
	478
9dcfce73	479	return isReject;
	480	}
	481
	482
91350f5b	483