[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 "AliTPCcalibDB.h"
#include "AliTPCTransform.h"
#include "AliTPCRecoParam.h"
#include "AliTPCclusterMI.h"
#include "AliTPCseed.h"
#include "AliTPCPointCorrection.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 = ESDfriend->GetTrack(i);
 
    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
  //
  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());
    // if(fApplyPositionCorrection) {
    //x[1]-=dy;
    //x[2]-=dz;
    // }
    //
    // Apply sector alignment
    //
    Double_t dxq = AliTPCPointCorrection::SGetCorrectionSector(0,cluster->GetDetector()%36,cluster->GetX(),
							       cluster->GetY(),cluster->GetZ());
    Double_t dyq = AliTPCPointCorrection::SGetCorrectionSector(1,cluster->GetDetector()%36,cluster->GetX(),
							       cluster->GetY(),cluster->GetZ());
    Double_t dzq = AliTPCPointCorrection::SGetCorrectionSector(2,cluster->GetDetector()%36,cluster->GetX(),
							       cluster->GetY(),cluster->GetZ());
    if (fApplySectorAlignment){
      x[0]-=dxq;
      x[1]-=dyq;
      x[2]-=dzq;
    }
    //
    // Apply r-phi correction  - To be done on track level- knowing the track angle !!!
    //
    Double_t corrclY =  
      corr->RPhiCOGCorrection(cluster->GetDetector(),cluster->GetRow(), cluster->GetPad(),
				  cluster->GetY(),cluster->GetY(), cluster->GetZ(), 0., cluster->GetMax(),2.5);
    // R correction
    Double_t corrR   = corr->CorrectionOutR0(kFALSE,kFALSE,cluster->GetX(),cluster->GetY(),cluster->GetZ(),cluster->GetDetector());

    if (fApplyRPhiCorrection){
      if (cluster->GetY()>0) x[1]+=corrclY;  // rphi correction
      if (cluster->GetY()<0) x[1]-=corrclY;  // rphi correction
    }
    if (fApplyRCorrection){      
      x[0]+=corrR;                           // radial correction
    }

    //
    //
    //
    cluster->SetX(x[0]);
    cluster->SetY(x[1]);
    cluster->SetZ(x[2]);
    
    //
    // Apply alignemnt
    //
    
//     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){
      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<<
	  "cY="<<corrclY<<
	  "cR="<<corrR<<
	  "dxq="<<dxq<<
	  "dyq="<<dyq<<
	  "dzq="<<dzq<<
	  "\n";
      }
    }
  }
  //
  //
  //
  Int_t ncl = seed->GetNumberOfClusters();
  Double_t covar[15];
  for (Int_t i=0;i<15;i++) covar[i]=0;
  covar[0]=10.*10.;
  covar[2]=10.*10.;
  covar[5]=10.*10./(64.*64.);
  covar[9]=10.*10./(64.*64.);
  covar[14]=0.3*0.3;
  if (TMath::Abs(magesd)<0.05) {
     covar[14]=0.025*0.025;
  }
  // 
  // And now do refit
  //
  AliExternalTrackParam * trackInOld  = (AliExternalTrackParam*)track->GetInnerParam();
  AliExternalTrackParam * trackOutOld = (AliExternalTrackParam*)track->GetOuterParam();


  AliExternalTrackParam trackIn  = *trackOutOld;
  if (TMath::Abs(magesd)<0.05) {
    ((Double_t&)(trackIn.GetParameter()[4]))=0.000000001;
  }  
  trackIn.ResetCovariance(20.);
  trackIn.AddCovariance(covar);
  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 (RejectCluster(cl,&trackIn)) continue;
    nclIn++;
    trackIn.Update(&r[1],cov);    
  }
  //
  AliExternalTrackParam trackOut = trackIn;
  if (TMath::Abs(magesd)<0.05) {
    ((Double_t&)(trackOut.GetParameter()[4]))=0.000000001;
  }
  trackOut.ResetCovariance(20.);
  trackOut.AddCovariance(covar);
  //
  // 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 (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(10.);
  //
  // 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 (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){
    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;
  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"
9dcfce73	58
	59	#include "AliTPCcalibDB.h"
	60	#include "AliTPCTransform.h"
7af539c6	61	#include "AliTPCRecoParam.h"
9dcfce73	62	#include "AliTPCclusterMI.h"
9dcfce73	63	#include "AliTPCseed.h"
15e48021	64	#include "AliTPCPointCorrection.h"
9dcfce73	65
	66	ClassImp(AliTPCcalibCalib)
	67
	68	AliTPCcalibCalib::AliTPCcalibCalib():
7af539c6	69	AliTPCcalibBase(),
	70	fApplyExBCorrection(1), // apply ExB correction
	71	fApplyTOFCorrection(1), // apply TOF correction
	72	fApplyPositionCorrection(1), // apply position correction
	73	fApplySectorAlignment(1), // apply sector alignment
	74	fApplyRPhiCorrection(1), // apply R-Phi correction
	75	fApplyRCorrection(1) // apply Radial correction
	76
9dcfce73	77	{
	78	//
	79	// Constructor
	80	//
	81	}
	82
	83
	84	AliTPCcalibCalib::AliTPCcalibCalib(const Text_t name, const Text_t title)
7af539c6	85	:AliTPCcalibBase(),
	86	fApplyExBCorrection(1), // apply ExB correction
	87	fApplyTOFCorrection(1), // apply TOF correction
	88	fApplyPositionCorrection(1), // apply position correction
	89	fApplySectorAlignment(1), // apply sector alignment
	90	fApplyRPhiCorrection(1), // apply R-Phi correction
	91	fApplyRCorrection(1) // apply Radial correction
9dcfce73	92	{
	93	SetName(name);
	94	SetTitle(title);
	95	}
	96
	97
	98	AliTPCcalibCalib::AliTPCcalibCalib(const AliTPCcalibCalib&calib):
7af539c6	99	AliTPCcalibBase(calib),
	100	fApplyExBCorrection(calib.GetApplyExBCorrection()),
	101	fApplyTOFCorrection(calib.GetApplyTOFCorrection()),
	102	fApplyPositionCorrection(calib.GetApplyPositionCorrection()),
	103	fApplySectorAlignment(calib.GetApplySectorAlignment()),
	104	fApplyRPhiCorrection(calib.GetApplyRPhiCorrection()),
	105	fApplyRCorrection(calib.GetApplyRCorrection())
	106
9dcfce73	107	{
	108	//
	109	// copy constructor
	110	//
	111	}
	112
	113	AliTPCcalibCalib &AliTPCcalibCalib::operator=(const AliTPCcalibCalib&calib){
	114	//
	115	//
	116	//
	117	((AliTPCcalibBase *)this)->operator=(calib);
	118	return *this;
	119	}
	120
	121
	122	AliTPCcalibCalib::~AliTPCcalibCalib() {
	123	//
	124	// destructor
	125	//
	126	}
	127
	128
	129	void AliTPCcalibCalib::Process(AliESDEvent *event){
	130	//
	131	//
	132	//
	133	if (!event) {
	134	return;
	135	}
	136	AliESDfriend ESDfriend=static_cast<AliESDfriend>(event->FindListObject("AliESDfriend"));
	137	if (!ESDfriend) {
	138	return;
	139	}
	140
	141	if (GetDebugLevel()>20) printf("Hallo world: Im here\n");
	142	Int_t ntracks=event->GetNumberOfTracks();
91350f5b	143	//AliTPCcalibDB::Instance()->SetExBField(fMagF);
5c3e0d17	144
9dcfce73	145	//
	146	//
	147	//
	148
	149	for (Int_t i=0;i<ntracks;++i) {
3e55050f	150	AliESDtrack *track = event->GetTrack(i);
	151	AliESDfriendTrack *friendTrack = ESDfriend->GetTrack(i);
	152
	153	const AliExternalTrackParam * trackIn = track->GetInnerParam();
9dcfce73	154	const AliExternalTrackParam * trackOut = track->GetOuterParam();
3e55050f	155	AliExternalTrackParam * tpcOut = (AliExternalTrackParam *)friendTrack->GetTPCOut();
9dcfce73	156	if (!trackIn) continue;
9dcfce73	157	if (!trackOut) continue;
3e55050f	158	if (!tpcOut) continue;
9dcfce73	159	TObject *calibObject;
	160	AliTPCseed *seed = 0;
	161	for (Int_t l=0;(calibObject=friendTrack->GetCalibObject(l));++l) {
	162	if ((seed=dynamic_cast<AliTPCseed*>(calibObject))) break;
	163	}
	164	if (!seed) continue;
38b1a1ca	165	RefitTrack(track, seed,event->GetMagneticField());
3e55050f	166	(tpcOut)=(track->GetOuterParam());
9dcfce73	167	}
	168	return;
	169	}
	170
38b1a1ca	171	Bool_t AliTPCcalibCalib::RefitTrack(AliESDtrack * track, AliTPCseed *seed, Float_t magesd){
9dcfce73	172	//
9dcfce73	173	// Refit track
38b1a1ca	174	// if magesd==0 forget the curvature
9dcfce73	175
15e48021	176	//
	177	// 0 - Setup transform object
	178	//
	179	AliTPCTransform *transform = AliTPCcalibDB::Instance()->GetTransform() ;
b96c3aef	180	AliTPCParam *param = AliTPCcalibDB::Instance()->GetParameters();
15e48021	181	transform->SetCurrentRun(fRun);
15e48021	182	transform->SetCurrentTimeStamp((UInt_t)fTime);
7af539c6	183	if(!fApplyExBCorrection) { // disable ExB correction in transform
	184	if(transform->GetCurrentRecoParam())
	185	transform->GetCurrentRecoParamNonConst()->SetUseExBCorrection(0);
	186	}
	187	if(!fApplyTOFCorrection) { // disable TOF correction in transform
	188	if(transform->GetCurrentRecoParam())
	189	transform->GetCurrentRecoParamNonConst()->SetUseTOFCorrection(kFALSE);
	190	}
	191
9dcfce73	192	//
	193	// First apply calibration
	194	//
15e48021	195	AliTPCPointCorrection * corr = AliTPCPointCorrection::Instance();
9dcfce73	196	for (Int_t irow=0;irow<159;irow++) {
	197	AliTPCclusterMI *cluster=seed->GetClusterPointer(irow);
	198	if (!cluster) continue;
	199	AliTPCclusterMI cl0(*cluster);
	200	Double_t x[3]={cluster->GetRow(),cluster->GetPad(),cluster->GetTimeBin()};
	201	Int_t i[1]={cluster->GetDetector()};
7af539c6	202
9dcfce73	203	transform->Transform(x,i,0,1);
11c7a854	204	//
	205	// get position correction
	206	//
	207	Int_t ipad=0;
	208	if (cluster->GetDetector()>35) ipad=1;
f26def9e	209	Float_t dy =0;//AliTPCClusterParam::SPosCorrection(0,ipad,cluster->GetPad(),cluster->GetTimeBin(),cluster->GetZ(),cluster->GetSigmaY2(),cluster->GetSigmaZ2(),cluster->GetMax());
f26def9e	210	Float_t dz =0;//AliTPCClusterParam::SPosCorrection(1,ipad,cluster->GetPad(),cluster->GetTimeBin(),cluster->GetZ(),cluster->GetSigmaY2(),cluster->GetSigmaZ2(),cluster->GetMax());
7af539c6	211	// if(fApplyPositionCorrection) {
11c7a854	212	//x[1]-=dy;
11c7a854	213	//x[2]-=dz;
7af539c6	214	// }
15e48021	215	//
	216	// Apply sector alignment
	217	//
	218	Double_t dxq = AliTPCPointCorrection::SGetCorrectionSector(0,cluster->GetDetector()%36,cluster->GetX(),
	219	cluster->GetY(),cluster->GetZ());
	220	Double_t dyq = AliTPCPointCorrection::SGetCorrectionSector(1,cluster->GetDetector()%36,cluster->GetX(),
	221	cluster->GetY(),cluster->GetZ());
	222	Double_t dzq = AliTPCPointCorrection::SGetCorrectionSector(2,cluster->GetDetector()%36,cluster->GetX(),
	223	cluster->GetY(),cluster->GetZ());
7af539c6	224	if (fApplySectorAlignment){
15e48021	225	x[0]-=dxq;
	226	x[1]-=dyq;
	227	x[2]-=dzq;
	228	}
	229	//
	230	// Apply r-phi correction - To be done on track level- knowing the track angle !!!
	231	//
	232	Double_t corrclY =
	233	corr->RPhiCOGCorrection(cluster->GetDetector(),cluster->GetRow(), cluster->GetPad(),
	234	cluster->GetY(),cluster->GetY(), cluster->GetZ(), 0., cluster->GetMax(),2.5);
	235	// R correction
	236	Double_t corrR = corr->CorrectionOutR0(kFALSE,kFALSE,cluster->GetX(),cluster->GetY(),cluster->GetZ(),cluster->GetDetector());
	237
7af539c6	238	if (fApplyRPhiCorrection){
15e48021	239	if (cluster->GetY()>0) x[1]+=corrclY; // rphi correction
15e48021	240	if (cluster->GetY()<0) x[1]-=corrclY; // rphi correction
7af539c6	241	}
7af539c6	242	if (fApplyRCorrection){
15e48021	243	x[0]+=corrR; // radial correction
15e48021	244	}
11c7a854	245
15e48021	246	//
15e48021	247	//
9dcfce73	248	//
	249	cluster->SetX(x[0]);
	250	cluster->SetY(x[1]);
	251	cluster->SetZ(x[2]);
b96c3aef	252
	253	//
	254	// Apply alignemnt
	255	//
	256
	257	// if (!param->IsGeoRead()) param->ReadGeoMatrices();
	258	// TGeoHMatrix *mat = param->GetClusterMatrix(cluster->GetDetector());
	259	// //TGeoHMatrix mat;
	260	// Double_t pos[3]= {cluster->GetX(),cluster->GetY(),cluster->GetZ()};
	261	// Double_t posC[3]={cluster->GetX(),cluster->GetY(),cluster->GetZ()};
	262	// if (mat) mat->LocalToMaster(pos,posC);
	263	// else{
	264	// // chack Loading of Geo matrices from GeoManager - TEMPORARY FIX
	265	// }
	266	// cluster->SetX(posC[0]);
	267	// cluster->SetY(posC[1]);
	268	// cluster->SetZ(posC[2]);
	269
	270
	271
	272
9dcfce73	273	if (fStreamLevel>2){
	274	TTreeSRedirector *cstream = GetDebugStreamer();
	275	if (cstream){
	276	(*cstream)<<"Clusters"<<
108953e9	277	"run="<<fRun<< // run number
	278	"event="<<fEvent<< // event number
	279	"time="<<fTime<< // time stamp of event
	280	"trigger="<<fTrigger<< // trigger
15e48021	281	"triggerClass="<<&fTriggerClass<< // trigger
108953e9	282	"mag="<<fMagF<< // magnetic field
9dcfce73	283	"cl0.="<<&cl0<<
9dcfce73	284	"cl.="<<cluster<<
11c7a854	285	"cy="<<dy<<
11c7a854	286	"cz="<<dz<<
fe8454d9	287	"cY="<<corrclY<<
15e48021	288	"cR="<<corrR<<
	289	"dxq="<<dxq<<
	290	"dyq="<<dyq<<
	291	"dzq="<<dzq<<
9dcfce73	292	"\n";
	293	}
	294	}
	295	}
15e48021	296	//
	297	//
	298	//
11c7a854	299	Int_t ncl = seed->GetNumberOfClusters();
	300	Double_t covar[15];
	301	for (Int_t i=0;i<15;i++) covar[i]=0;
	302	covar[0]=10.*10.;
	303	covar[2]=10.*10.;
	304	covar[5]=10.10./(64.64.);
	305	covar[9]=10.10./(64.64.);
38b1a1ca	306	covar[14]=0.3*0.3;
	307	if (TMath::Abs(magesd)<0.05) {
	308	covar[14]=0.025*0.025;
	309	}
9dcfce73	310	//
	311	// And now do refit
	312	//
11c7a854	313	AliExternalTrackParam * trackInOld = (AliExternalTrackParam*)track->GetInnerParam();
9dcfce73	314	AliExternalTrackParam * trackOutOld = (AliExternalTrackParam*)track->GetOuterParam();
9dcfce73	315
3e55050f	316
9dcfce73	317	AliExternalTrackParam trackIn = *trackOutOld;
38b1a1ca	318	if (TMath::Abs(magesd)<0.05) {
	319	((Double_t&)(trackIn.GetParameter()[4]))=0.000000001;
	320	}
	321	trackIn.ResetCovariance(20.);
11c7a854	322	trackIn.AddCovariance(covar);
9dcfce73	323	Double_t xyz[3];
	324	Int_t nclIn=0,nclOut=0;
	325	//
15e48021	326	// Refit in
	327	//
	328
	329	for (Int_t irow=159; irow>0; irow--){
	330	AliTPCclusterMI *cl=seed->GetClusterPointer(irow);
	331	if (!cl) continue;
	332	if (cl->GetX()<80) continue;
	333	Int_t sector = cl->GetDetector();
	334	Float_t dalpha = TMath::DegToRad()(sector%1820.+10.)-trackIn.GetAlpha();
91f8fa1d	335	if (TMath::Abs(dalpha)>0.01){
	336	if (!trackIn.Rotate(TMath::DegToRad()(sector%1820.+10.))) break;
	337	}
15e48021	338	Double_t r[3]={cl->GetX(),cl->GetY(),cl->GetZ()};
	339	Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation
	340	AliTPCseed::GetError(cl, &trackIn,cov[0],cov[2]);
	341	cov[0]*=cov[0];
	342	cov[2]*=cov[2];
	343	trackIn.GetXYZ(xyz);
	344	Double_t bz = AliTracker::GetBz(xyz);
	345
	346	if (!trackIn.PropagateTo(r[0],bz)) continue;
	347	if (RejectCluster(cl,&trackIn)) continue;
	348	nclIn++;
	349	trackIn.Update(&r[1],cov);
	350	}
	351	//
	352	AliExternalTrackParam trackOut = trackIn;
38b1a1ca	353	if (TMath::Abs(magesd)<0.05) {
	354	((Double_t&)(trackOut.GetParameter()[4]))=0.000000001;
	355	}
	356	trackOut.ResetCovariance(20.);
15e48021	357	trackOut.AddCovariance(covar);
15e48021	358	//
9dcfce73	359	// Refit out
9dcfce73	360	//
15e48021	361	//Bool_t lastEdge=kFALSE;
9dcfce73	362	for (Int_t irow=0; irow<160; irow++){
	363	AliTPCclusterMI *cl=seed->GetClusterPointer(irow);
	364	if (!cl) continue;
	365	if (cl->GetX()<80) continue;
	366	Int_t sector = cl->GetDetector();
	367	Float_t dalpha = TMath::DegToRad()(sector%1820.+10.)-trackOut.GetAlpha();
	368
91f8fa1d	369	if (TMath::Abs(dalpha)>0.01){
	370	if (!trackOut.Rotate(TMath::DegToRad()(sector%1820.+10.))) break;
	371	}
9dcfce73	372	Double_t r[3]={cl->GetX(),cl->GetY(),cl->GetZ()};
91350f5b	373
	374	Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation
	375	AliTPCseed::GetError(cl, &trackOut,cov[0],cov[2]);
	376	cov[0]*=cov[0];
	377	cov[2]*=cov[2];
9dcfce73	378	trackOut.GetXYZ(xyz);
9dcfce73	379	Double_t bz = AliTracker::GetBz(xyz);
15e48021	380	if (!trackOut.PropagateTo(r[0],bz)) continue;
42b40d07	381	if (RejectCluster(cl,&trackOut)) continue;
15e48021	382	nclOut++;
	383	trackOut.Update(&r[1],cov);
	384	//if (cl->GetType()<0) lastEdge=kTRUE;
	385	//if (cl->GetType()>=0) lastEdge=kFALSE;
9dcfce73	386	}
9dcfce73	387	//
9dcfce73	388	//
15e48021	389	//
	390	nclIn=0;
	391	trackIn = trackOut;
	392	trackIn.ResetCovariance(10.);
	393	//
	394	// Refit in one more time
	395	//
9dcfce73	396	for (Int_t irow=159; irow>0; irow--){
	397	AliTPCclusterMI *cl=seed->GetClusterPointer(irow);
	398	if (!cl) continue;
	399	if (cl->GetX()<80) continue;
	400	Int_t sector = cl->GetDetector();
	401	Float_t dalpha = TMath::DegToRad()(sector%1820.+10.)-trackIn.GetAlpha();
91f8fa1d	402	if (TMath::Abs(dalpha)>0.01){
	403	if (!trackIn.Rotate(TMath::DegToRad()(sector%1820.+10.))) break;
	404	}
9dcfce73	405	Double_t r[3]={cl->GetX(),cl->GetY(),cl->GetZ()};
9dcfce73	406	Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation
91350f5b	407	AliTPCseed::GetError(cl, &trackIn,cov[0],cov[2]);
	408	cov[0]*=cov[0];
	409	cov[2]*=cov[2];
	410	trackIn.GetXYZ(xyz);
9dcfce73	411	Double_t bz = AliTracker::GetBz(xyz);
9dcfce73	412
15e48021	413	if (!trackIn.PropagateTo(r[0],bz)) continue;
42b40d07	414	if (RejectCluster(cl,&trackIn)) continue;
15e48021	415	nclIn++;
9dcfce73	416	trackIn.Update(&r[1],cov);
9dcfce73	417	}
15e48021	418
15e48021	419
3bf5c7a6	420	trackIn.Rotate(trackInOld->GetAlpha());
	421	trackOut.Rotate(trackOutOld->GetAlpha());
	422	//
	423	trackInOld->GetXYZ(xyz);
	424	Double_t bz = AliTracker::GetBz(xyz);
	425	trackIn.PropagateTo(trackInOld->GetX(),bz);
	426	//
	427	trackOutOld->GetXYZ(xyz);
	428	bz = AliTracker::GetBz(xyz);
	429	trackOut.PropagateTo(trackOutOld->GetX(),bz);
	430
9dcfce73	431
	432	if (fStreamLevel>0){
	433	TTreeSRedirector *cstream = GetDebugStreamer();
	434	if (cstream){
	435	(*cstream)<<"Tracks"<<
108953e9	436	"run="<<fRun<< // run number
	437	"event="<<fEvent<< // event number
	438	"time="<<fTime<< // time stamp of event
	439	"trigger="<<fTrigger<< // trigger
15e48021	440	"triggerClass="<<&fTriggerClass<< // trigger
108953e9	441	"mag="<<fMagF<< // magnetic field
9dcfce73	442	"nclIn="<<nclIn<<
	443	"nclOut="<<nclOut<<
	444	"ncl="<<ncl<<
	445	"TrIn0.="<<trackInOld<<
	446	"TrOut0.="<<trackOutOld<<
	447	"TrIn1.="<<&trackIn<<
	448	"TrOut1.="<<&trackOut<<
	449	"\n";
	450	}
	451	}
3bf5c7a6	452	//
981e9de5	453	// And now rewrite ESDtrack and TPC seed
3bf5c7a6	454	//
	455
	456	(*trackInOld) = trackIn;
	457	(*trackOutOld) = trackOut;
	458	AliExternalTrackParam *t = &trackIn;
	459	track->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance());
981e9de5	460	seed->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance());
fe8454d9	461	seed->SetNumberOfClusters((nclIn+nclOut)/2);
2cfb8d90	462	return kTRUE;
9dcfce73	463	}
	464
	465
	466
	467	Bool_t AliTPCcalibCalib::RejectCluster(AliTPCclusterMI* cl, AliExternalTrackParam * param){
	468	//
	469	// check the acceptance of cluster
	470	// Cut on edge effects
	471	//
15e48021	472	Float_t kEdgeCut=2.5;
	473	Float_t kSigmaCut=6;
	474
9dcfce73	475	Bool_t isReject = kFALSE;
	476	Float_t edgeY = cl->GetX()*TMath::Tan(TMath::Pi()/18);
	477	Float_t dist = edgeY - TMath::Abs(cl->GetY());
	478	if (param) dist = TMath::Abs(edgeY - TMath::Abs(param->GetY()));
15e48021	479	if (dist<kEdgeCut) isReject=kTRUE;
	480
	481	Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation
	482	AliTPCseed::GetError(cl, param,cov[0],cov[2]);
91f8fa1d	483	if (param->GetSigmaY2()<0 \|\| param->GetSigmaZ2()<0){
d3ce44cb	484	AliError("Wrong parameters");
	485	return kFALSE;
	486	}
15e48021	487	Double_t py = (cl->GetY()-param->GetY())/TMath::Sqrt(cov[0]*cov[0]+param->GetSigmaY2());
	488	Double_t pz = (cl->GetZ()-param->GetZ())/TMath::Sqrt(cov[2]*cov[2]+param->GetSigmaZ2());
	489	//
	490	if ((pypy+pzpz)>kSigmaCut*kSigmaCut) isReject=kTRUE;
	491
9dcfce73	492	return isReject;
	493	}
	494
	495
91350f5b	496