[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 "AliTPCclusterMI.h"
#include "AliTPCseed.h"
#include "AliTPCPointCorrection.h"

ClassImp(AliTPCcalibCalib)

AliTPCcalibCalib::AliTPCcalibCalib():
    AliTPCcalibBase()
{
  //
  // Constructor
  //
}


AliTPCcalibCalib::AliTPCcalibCalib(const Text_t *name, const Text_t *title) 
  :AliTPCcalibBase()
{  
  SetName(name);
  SetTitle(title);
}


AliTPCcalibCalib::AliTPCcalibCalib(const AliTPCcalibCalib&calib):
  AliTPCcalibBase(calib)
{
  //
  // 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);  
    const AliExternalTrackParam * trackIn = track->GetInnerParam();
    const AliExternalTrackParam * trackOut = track->GetOuterParam();
    if (!trackIn) continue;
    if (!trackOut) continue;
   
    AliESDfriendTrack *friendTrack = ESDfriend->GetTrack(i);
    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);
  }
  return;
}

Bool_t  AliTPCcalibCalib::RefitTrack(AliESDtrack * track, AliTPCseed *seed){
  //
  // Refit track
  //

  //
  // 0 - Setup transform object
  //
  AliTPCTransform *transform = AliTPCcalibDB::Instance()->GetTransform() ;
  transform->SetCurrentRun(fRun);
  transform->SetCurrentTimeStamp((UInt_t)fTime);
  //
  // 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 =AliTPCClusterParam::SPosCorrection(0,ipad,cluster->GetPad(),cluster->GetTimeBin(),cluster->GetZ(),cluster->GetSigmaY2(),cluster->GetSigmaZ2(),cluster->GetMax());
    Float_t dz =AliTPCClusterParam::SPosCorrection(1,ipad,cluster->GetPad(),cluster->GetTimeBin(),cluster->GetZ(),cluster->GetSigmaY2(),cluster->GetSigmaZ2(),cluster->GetMax());
    //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 (kTRUE){
      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 (kTRUE){
      if (cluster->GetY()>0) x[1]+=corrclY;  // rphi correction
      if (cluster->GetY()<0) x[1]-=corrclY;  // rphi correction
      x[0]+=corrR;                           // radial correction
    }

    //
    //
    //
    cluster->SetX(x[0]);
    cluster->SetY(x[1]);
    cluster->SetZ(x[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]=1*1;

  // 
  // And now do refit
  //
  AliExternalTrackParam * trackInOld  = (AliExternalTrackParam*)track->GetInnerParam();
  AliExternalTrackParam * trackOutOld = (AliExternalTrackParam*)track->GetOuterParam();

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