[u/mrichter/AliRoot.git] / TOF / AliTOFClusterFinder.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.                  *
 **************************************************************************/

/* 

Revision 0.03  2005/07/28 A. De Caro
         Implement public method
	 Raw2Digits(Int_t, AliRawReader *)
	 to convert digits from raw data in MC digits
	 (temporary solution)

Revision 0.02  2005/07/27 A. De Caro
         Implement public method
	 Digits2RecPoint(Int_t)
	 to convert digits in clusters

Revision 0.02  2005/07/26 A. De Caro
         Implement private methods
	 InsertCluster(AliTOFcluster *)
	 FindClusterIndex(Double_t)
	 originally implemented in AliTOFtracker
	 by S. Arcelli and C. Zampolli

Revision 0.01  2005/07/25 A. De Caro
         Implement public methods
	 Digits2RecPoint(AliRawReader *, TTree *)
	 Digits2RecPoint(Int_t, AliRawReader *)
	 to convert raw data in clusters
 */

////////////////////////////////////////////////////////////////
//                                                            //
//         Class for TOF cluster finder                       //
//                                                            //
// Starting from Raw Data, create rec points,                 //
//                         fill TreeR for TOF,                //
//                         write TOF.RecPoints.root file      //
//                                                            //
////////////////////////////////////////////////////////////////

#include <TTree.h>
#include <TObjArray.h>
#include <TClonesArray.h>
#include <TFile.h>

#include "AliLog.h"
#include "AliRunLoader.h"
#include "AliLoader.h"

#include "AliTOFdigit.h"
#include "AliTOFcluster.h"
#include "AliTOFGeometry.h"
#include "AliTOFGeometryV4.h"
#include "AliTOFGeometryV5.h"
#include "AliTOFRawStream.h"
#include "AliTOFcalib.h"
#include "AliTOFCal.h"
#include "AliTOFChannel.h"

#include "AliTOFClusterFinder.h"

ClassImp(AliTOFClusterFinder)

AliTOFClusterFinder::AliTOFClusterFinder():
  fRunLoader(0),
  fTOFLoader(0),
  fTreeD(0),
  fTreeR(0),
  fDigits(new TClonesArray("AliTOFdigit", 4000)),
  fRecPoints(new TClonesArray("AliTOFcluster", 4000)),
  fNumberOfTofClusters(0)
{
//
// Constructor
//

  fTOFGeometry = new AliTOFGeometryV5();
  AliInfo("V5 TOF Geometry is taken as the default");

}
//______________________________________________________________________________

AliTOFClusterFinder::AliTOFClusterFinder(AliRunLoader* runLoader):
  fRunLoader(runLoader),
  fTOFLoader(runLoader->GetLoader("TOFLoader")),
  fTreeD(0),
  fTreeR(0),
  fDigits(new TClonesArray("AliTOFdigit", 4000)),
  fRecPoints(new TClonesArray("AliTOFcluster", 4000)),
  fNumberOfTofClusters(0)
{
//
// Constructor
//

  runLoader->CdGAFile();
  TFile *in=(TFile*)gFile;
  in->cd();
  fTOFGeometry = (AliTOFGeometry*)in->Get("TOFgeometry");

}
//______________________________________________________________________________

AliTOFClusterFinder::~AliTOFClusterFinder()
{

  //
  // Destructor
  //

  if (fDigits)
    {
      fDigits->Delete();
      delete fDigits;
      fDigits=0;
    }
  if (fRecPoints)
    {
      fRecPoints->Delete();
      delete fRecPoints;
      fRecPoints=0;
    }

  delete fTOFGeometry;

}
//______________________________________________________________________________

void AliTOFClusterFinder::Digits2RecPoints(Int_t iEvent)
{
  //
  // Converts digits to recpoints for TOF
  //

  fRunLoader->GetEvent(iEvent);

  fTreeD = fTOFLoader->TreeD();
  if (fTreeD == 0x0)
    {
      AliFatal("AliTOFClusterFinder: Can not get TreeD");
    }

  TBranch *branch = fTreeD->GetBranch("TOF");
  if (!branch) { 
    AliError("can't get the branch with the TOF digits !");
    return;
  }

  TClonesArray dummy("AliTOFdigit",10000), *digits=&dummy;
  branch->SetAddress(&digits);

  ResetRecpoint();

  fTreeR = fTOFLoader->TreeR();
  if (fTreeR == 0x0)
    {
      fTOFLoader->MakeTree("R");
      fTreeR = fTOFLoader->TreeR();
    }

  Int_t bufsize = 32000;
  fTreeR->Branch("TOF", &fRecPoints, bufsize);

  fTreeD->GetEvent(0);
  Int_t nDigits = digits->GetEntriesFast();
  AliDebug(2,Form("Number of TOF digits: %d",nDigits));

  Int_t ii, jj;
  Int_t dig[5];
  Float_t g[3];
  Double_t h[5];
  Float_t ToT;
  Double_t TdcND;
  for (ii=0; ii<nDigits; ii++) {
    AliTOFdigit *d = (AliTOFdigit*)digits->UncheckedAt(ii);
    dig[0]=d->GetSector();
    dig[1]=d->GetPlate();
    dig[2]=d->GetStrip();
    dig[3]=d->GetPadz();
    dig[4]=d->GetPadx();

    for (jj=0; jj<3; jj++) g[jj] = 0.;
    fTOFGeometry->GetPos(dig,g);

    h[0] = TMath::Sqrt(g[0]*g[0]+g[1]*g[1]);
    h[1] = TMath::ATan2(g[1],g[0]);
    h[2] = g[2];
    h[3] = d->GetTdc();
    h[4] = d->GetAdc();
    ToT = d->GetToT();
    TdcND = d->GetTdcND();

    AliTOFcluster *tofCluster = new AliTOFcluster(h,d->GetTracks(),dig,ii,ToT, TdcND);
    InsertCluster(tofCluster);

  }

  AliInfo(Form("Number of found clusters: %i", fNumberOfTofClusters));

  CalibrateRecPoint();
  FillRecPoint();

  fTreeR->Fill();
  ResetRecpoint();

  fTOFLoader = fRunLoader->GetLoader("TOFLoader");  
  fTOFLoader->WriteRecPoints("OVERWRITE");

}
//______________________________________________________________________________

void AliTOFClusterFinder::Digits2RecPoints(AliRawReader *rawReader,
					   TTree *clustersTree)
{
  //
  // Converts RAW data to recpoints for TOF
  //

  const Int_t kDDL = fTOFGeometry->NDDL()*fTOFGeometry->NSectors();

  ResetRecpoint();

  Int_t bufsize = 32000;
  clustersTree->Branch("TOF", &fRecPoints, bufsize);

  Int_t ii = 0;
  Int_t indexDDL = 0;

  Int_t detectorIndex[5];
  Float_t position[3];
  Double_t cylindricalPosition[5];
  Float_t ToT;
  Double_t TdcND;

  for (indexDDL = 0; indexDDL < kDDL; indexDDL++) {

    rawReader->Reset();
    AliTOFRawStream tofInput(rawReader);
    rawReader->Select(5, indexDDL, indexDDL);

    while(tofInput.Next()) {

      detectorIndex[0] = tofInput.GetSector();
      detectorIndex[1] = tofInput.GetPlate();
      detectorIndex[2] = tofInput.GetStrip();
      detectorIndex[3] = tofInput.GetPadZ();
      detectorIndex[4] = tofInput.GetPadX();
      
      for (ii=0; ii<3; ii++) position[ii] =  0.;

      fTOFGeometry->GetPos(detectorIndex, position);

      cylindricalPosition[0] = TMath::Sqrt(position[0]*position[0] + position[1]*position[1]);
      cylindricalPosition[1] = TMath::ATan2(position[1], position[0]);
      cylindricalPosition[2] = position[2];
      cylindricalPosition[3] = tofInput.GetTofBin();
      cylindricalPosition[4] = tofInput.GetADCbin();
      ToT = tofInput.GetADCbin();
      TdcND = -1.;
      AliTOFcluster *tofCluster = new AliTOFcluster(cylindricalPosition, detectorIndex);
      tofCluster->SetToT(ToT);
      tofCluster->SetTDCND(TdcND);
      InsertCluster(tofCluster);

    } // while loop

  } // loop on DDL files

  AliInfo(Form("Number of found clusters: %i", fNumberOfTofClusters));

  CalibrateRecPoint();
  FillRecPoint();

  clustersTree->Fill();

  ResetRecpoint();

}
//______________________________________________________________________________

void AliTOFClusterFinder::Digits2RecPoints(Int_t iEvent, AliRawReader *rawReader)
{
  //
  // Converts RAW data to recpoints for TOF
  //

  const Int_t kDDL = fTOFGeometry->NDDL()*fTOFGeometry->NSectors();

  fRunLoader->GetEvent(iEvent);

  AliDebug(2,Form(" Event number %2i ", iEvent));

  fTreeR = fTOFLoader->TreeR();

  if (fTreeR == 0x0){
    fTOFLoader->MakeTree("R");
    fTreeR = fTOFLoader->TreeR();
  }

  Int_t bufsize = 32000;
  fTreeR->Branch("TOF", &fRecPoints, bufsize);

  Int_t ii = 0;
  Int_t indexDDL = 0;

  Int_t detectorIndex[5];
  Float_t position[3];
  Double_t cylindricalPosition[5];
  Float_t ToT;
  Double_t TdcND;

  for (indexDDL = 0; indexDDL < kDDL; indexDDL++) {

    rawReader->Reset();
    AliTOFRawStream tofInput(rawReader);
    rawReader->Select(5, indexDDL, indexDDL);

    while(tofInput.Next()) {

      detectorIndex[0] = (Int_t)tofInput.GetSector();
      detectorIndex[1] = (Int_t)tofInput.GetPlate();
      detectorIndex[2] = (Int_t)tofInput.GetStrip();
      detectorIndex[3] = (Int_t)tofInput.GetPadZ();
      detectorIndex[4] = (Int_t)tofInput.GetPadX();

      for (ii=0; ii<3; ii++) position[ii] =  0.;

      fTOFGeometry->GetPos(detectorIndex, position);
      
      cylindricalPosition[0] = (Double_t)TMath::Sqrt(position[0]*position[0] + position[1]*position[1]);
      cylindricalPosition[1] = (Double_t)TMath::ATan2(position[1], position[0]);
      cylindricalPosition[2] = (Double_t)position[2];
      cylindricalPosition[3] = (Double_t)tofInput.GetTofBin();
      cylindricalPosition[4] = (Double_t)tofInput.GetADCbin();
      ToT = tofInput.GetADCbin();
      TdcND = -1.;
    
      AliTOFcluster *tofCluster = new AliTOFcluster(cylindricalPosition, detectorIndex);
      tofCluster->SetToT(ToT);
      tofCluster->SetTDCND(TdcND);
      InsertCluster(tofCluster);

    } // while loop

  } // DDL Loop

  AliInfo(Form("Number of found clusters: %i", fNumberOfTofClusters));

  CalibrateRecPoint();
  FillRecPoint();

  fTreeR->Fill();
  ResetRecpoint();

  fTOFLoader = fRunLoader->GetLoader("TOFLoader");
  fTOFLoader->WriteRecPoints("OVERWRITE");
  
}
//______________________________________________________________________________

void AliTOFClusterFinder::Raw2Digits(Int_t iEvent, AliRawReader *rawReader)
{
  //
  // Converts RAW data to MC digits for TOF
  //
  //             (temporary solution)
  //

  fRunLoader->GetEvent(iEvent);

  fTreeD = fTOFLoader->TreeD();
  if (fTreeD)
    {
    AliInfo("AliTOFClusterFinder: TreeD re-creation");
    fTreeD = 0x0;
    fTOFLoader->MakeTree("D");
    fTreeD = fTOFLoader->TreeD();
    }


  fTreeR = fTOFLoader->TreeD();
  if (fTreeD == 0x0)
    {
      fTOFLoader->MakeTree("D");
      fTreeD = fTOFLoader->TreeD();
    }

  TClonesArray dummy("AliTOFdigit",10000), *tofDigits=&dummy;
  Int_t bufsize = 32000;
  fTreeD->Branch("TOF", &tofDigits, bufsize);


  const Int_t kDDL = fTOFGeometry->NDDL()*fTOFGeometry->NSectors();

  fRunLoader->GetEvent(iEvent);

  AliDebug(2,Form(" Event number %2i ", iEvent));

  Int_t indexDDL = 0;

  Int_t detectorIndex[5];
  Float_t digit[2];

  for (indexDDL = 0; indexDDL < kDDL; indexDDL++) {

    rawReader->Reset();
    AliTOFRawStream tofInput(rawReader);
    rawReader->Select(5, indexDDL, indexDDL);

    while(tofInput.Next()) {

      detectorIndex[0] = tofInput.GetSector();
      detectorIndex[1] = tofInput.GetPlate();
      detectorIndex[2] = tofInput.GetStrip();
      detectorIndex[3] = tofInput.GetPadX();
      detectorIndex[4] = tofInput.GetPadZ();
      
      digit[0] = (Float_t)tofInput.GetTofBin();
      digit[1] = (Float_t)tofInput.GetADCbin();

      Int_t tracknum[3]={-1,-1,-1};

      TClonesArray &aDigits = *tofDigits;
      Int_t last=tofDigits->GetEntriesFast();
      new (aDigits[last]) AliTOFdigit(tracknum, detectorIndex, digit);

    } // while loop

  } // DDL Loop

  fTreeD->Fill();

  fTOFLoader = fRunLoader->GetLoader("TOFLoader");
  fTOFLoader->WriteDigits("OVERWRITE");
  
}
//______________________________________________________________________________

Int_t AliTOFClusterFinder::InsertCluster(AliTOFcluster *tofCluster) {
  //---------------------------------------------------------------------------//
  // This function adds a TOF cluster to the array of TOF clusters sorted in Z //
  //---------------------------------------------------------------------------//
  if (fNumberOfTofClusters==kTofMaxCluster) {
    AliError("Too many clusters !");
    return 1;
  }

  if (fNumberOfTofClusters==0) {
    fTofClusters[fNumberOfTofClusters++] = tofCluster;
    return 0;
  }

  Int_t ii = FindClusterIndex(tofCluster->GetZ());
  memmove(fTofClusters+ii+1 ,fTofClusters+ii,(fNumberOfTofClusters-ii)*sizeof(AliTOFcluster*));
  fTofClusters[ii] = tofCluster;
  fNumberOfTofClusters++;
  
  return 0;

}
//_________________________________________________________________________

Int_t AliTOFClusterFinder::FindClusterIndex(Double_t z) const {
  //--------------------------------------------------------------------
  // This function returns the index of the nearest cluster 
  //--------------------------------------------------------------------
  if (fNumberOfTofClusters==0) return 0;
  if (z <= fTofClusters[0]->GetZ()) return 0;
  if (z > fTofClusters[fNumberOfTofClusters-1]->GetZ()) return fNumberOfTofClusters;
  Int_t b = 0, e = fNumberOfTofClusters-1, m = (b+e)/2;
  for (; b<e; m=(b+e)/2) {
    if (z > fTofClusters[m]->GetZ()) b=m+1;
    else e=m;
  }

  return m;

}
//_________________________________________________________________________

void AliTOFClusterFinder::FillRecPoint()
{
  //
  // Copy the global array of AliTOFcluster, i.e. fTofClusters (sorted
  // in Z) in the global TClonesArray of AliTOFcluster,
  // i.e. fRecPoints.
  //

  Int_t ii, jj;

  Int_t detectorIndex[5];
  Double_t cylindricalPosition[5];
  Int_t trackLabels[3];
  Int_t digitIndex = -1;
  Float_t ToT;
  Double_t TdcND;

  TClonesArray &lRecPoints = *fRecPoints;
  
  for (ii=0; ii<fNumberOfTofClusters; ii++) {

    digitIndex = fTofClusters[ii]->GetIndex();
    for(jj=0; jj<5; jj++) detectorIndex[jj] = fTofClusters[ii]->GetDetInd(jj);
    for(jj=0; jj<3; jj++) trackLabels[jj] = fTofClusters[ii]->GetLabel(jj);
    cylindricalPosition[0] = fTofClusters[ii]->GetR();
    cylindricalPosition[1] = fTofClusters[ii]->GetPhi();
    cylindricalPosition[2] = fTofClusters[ii]->GetZ();
    cylindricalPosition[3] = fTofClusters[ii]->GetTDC();
    cylindricalPosition[4] = fTofClusters[ii]->GetADC();
    ToT = fTofClusters[ii]->GetToT();
    TdcND = fTofClusters[ii]->GetTDCND();

    new(lRecPoints[ii]) AliTOFcluster(cylindricalPosition, trackLabels, detectorIndex, digitIndex, ToT, TdcND);

    //AliInfo(Form("%3i  %3i  %f %f %f %f %f  %2i %2i %2i %1i %2i",ii,digitIndex, cylindricalPosition[2],cylindricalPosition[0],cylindricalPosition[1],cylindricalPosition[3],cylindricalPosition[4],detectorIndex[0],detectorIndex[1],detectorIndex[2],detectorIndex[3],detectorIndex[4]));

  } // loop on clusters

}

//_________________________________________________________________________
void AliTOFClusterFinder::CalibrateRecPoint()
{
  //
  // Copy the global array of AliTOFcluster, i.e. fTofClusters (sorted
  // in Z) in the global TClonesArray of AliTOFcluster,
  // i.e. fRecPoints.
  //

  Int_t ii, jj;

  Int_t detectorIndex[5];
  Int_t digitIndex = -1;
  Float_t ToT;
  Float_t TdcCorr;
  AliInfo(" Calibrating TOF Clusters: ")
  AliTOFcalib *calib = new AliTOFcalib(fTOFGeometry);
  calib->ReadParFromCDB("TOF/CDB",1);
  AliTOFCal *TOFCalArray = calib->GetTOFCalArray();  

  for (ii=0; ii<fNumberOfTofClusters; ii++) {
    digitIndex = fTofClusters[ii]->GetIndex();
    for(jj=0; jj<5; jj++) detectorIndex[jj] = fTofClusters[ii]->GetDetInd(jj);

    Int_t index = calib->GetIndex(detectorIndex);
     
    AliTOFChannel * CalChannel = TOFCalArray->GetChannel(index);
    Float_t par[6];
    for (Int_t j = 0; j<6; j++){
      par[j]=CalChannel->GetSlewPar(j);
    }
    ToT = fTofClusters[ii]->GetToT();
    Float_t TimeCorr=par[0]+par[1]*ToT+par[2]*ToT*ToT+par[3]*ToT*ToT*ToT+par[4]*ToT*ToT*ToT*ToT+par[5]*ToT*ToT*ToT*ToT*ToT;
    TdcCorr=(fTofClusters[ii]->GetTDC()*AliTOFGeometry::TdcBinWidth()+32)*1.E-3-TimeCorr;
    TdcCorr=(TdcCorr*1E3-32)/AliTOFGeometry::TdcBinWidth();
    fTofClusters[ii]->SetTDC(TdcCorr);

  } // loop on clusters

  delete calib;
}
//______________________________________________________________________________

void AliTOFClusterFinder::ResetRecpoint()
{
  //
  // Clear the list of reconstructed points
  //

  fNumberOfTofClusters = 0;
  if (fRecPoints) fRecPoints->Clear();

}
//______________________________________________________________________________

void AliTOFClusterFinder::Load()
{
  //
  // Load TOF.Digits.root and TOF.RecPoints.root files
  //

  fTOFLoader->LoadDigits("READ");
  fTOFLoader->LoadRecPoints("recreate");

}
//______________________________________________________________________________

void AliTOFClusterFinder::LoadClusters()
{
  //
  // Load TOF.RecPoints.root file
  //

  fTOFLoader->LoadRecPoints("recreate");

}
//______________________________________________________________________________

void AliTOFClusterFinder::UnLoad()
{
  //
  // Unload TOF.Digits.root and TOF.RecPoints.root files
  //

  fTOFLoader->UnloadDigits();
  fTOFLoader->UnloadRecPoints();

}
//______________________________________________________________________________

void AliTOFClusterFinder::UnLoadClusters()
{
  //
  // Unload TOF.RecPoints.root file
  //

  fTOFLoader->UnloadRecPoints();

}
//______________________________________________________________________________
Commit	Line	Data
d08a92dd	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	Revision 0.03 2005/07/28 A. De Caro
	19	Implement public method
	20	Raw2Digits(Int_t, AliRawReader *)
	21	to convert digits from raw data in MC digits
	22	(temporary solution)
	23
	24	Revision 0.02 2005/07/27 A. De Caro
	25	Implement public method
	26	Digits2RecPoint(Int_t)
	27	to convert digits in clusters
	28
	29	Revision 0.02 2005/07/26 A. De Caro
	30	Implement private methods
	31	InsertCluster(AliTOFcluster *)
	32	FindClusterIndex(Double_t)
	33	originally implemented in AliTOFtracker
	34	by S. Arcelli and C. Zampolli
	35
	36	Revision 0.01 2005/07/25 A. De Caro
	37	Implement public methods
	38	Digits2RecPoint(AliRawReader , TTree )
	39	Digits2RecPoint(Int_t, AliRawReader *)
	40	to convert raw data in clusters
	41	*/
	42
	43	////////////////////////////////////////////////////////////////
	44	// //
	45	// Class for TOF cluster finder //
	46	// //
	47	// Starting from Raw Data, create rec points, //
	48	// fill TreeR for TOF, //
	49	// write TOF.RecPoints.root file //
	50	// //
	51	////////////////////////////////////////////////////////////////
	52
d08a92dd	53	#include <TTree.h>
	54	#include <TObjArray.h>
	55	#include <TClonesArray.h>
bfbd5665	56	#include <TFile.h>
d08a92dd	57
	58	#include "AliLog.h"
	59	#include "AliRunLoader.h"
	60	#include "AliLoader.h"
	61
	62	#include "AliTOFdigit.h"
	63	#include "AliTOFcluster.h"
	64	#include "AliTOFGeometry.h"
d3c7bfac	65	#include "AliTOFGeometryV4.h"
d3c7bfac	66	#include "AliTOFGeometryV5.h"
d08a92dd	67	#include "AliTOFRawStream.h"
37879eed	68	#include "AliTOFcalib.h"
	69	#include "AliTOFCal.h"
	70	#include "AliTOFChannel.h"
d08a92dd	71
	72	#include "AliTOFClusterFinder.h"
	73
	74	ClassImp(AliTOFClusterFinder)
	75
	76	AliTOFClusterFinder::AliTOFClusterFinder():
	77	fRunLoader(0),
	78	fTOFLoader(0),
	79	fTreeD(0),
	80	fTreeR(0),
	81	fDigits(new TClonesArray("AliTOFdigit", 4000)),
	82	fRecPoints(new TClonesArray("AliTOFcluster", 4000)),
	83	fNumberOfTofClusters(0)
	84	{
	85	//
	86	// Constructor
	87	//
	88
3bbdf45d	89	fTOFGeometry = new AliTOFGeometryV5();
3bbdf45d	90	AliInfo("V5 TOF Geometry is taken as the default");
37879eed	91
d08a92dd	92	}
	93	//______________________________________________________________________________
	94
	95	AliTOFClusterFinder::AliTOFClusterFinder(AliRunLoader* runLoader):
	96	fRunLoader(runLoader),
	97	fTOFLoader(runLoader->GetLoader("TOFLoader")),
	98	fTreeD(0),
	99	fTreeR(0),
	100	fDigits(new TClonesArray("AliTOFdigit", 4000)),
	101	fRecPoints(new TClonesArray("AliTOFcluster", 4000)),
	102	fNumberOfTofClusters(0)
	103	{
	104	//
	105	// Constructor
	106	//
	107
d3c7bfac	108	runLoader->CdGAFile();
	109	TFile in=(TFile)gFile;
	110	in->cd();
	111	fTOFGeometry = (AliTOFGeometry*)in->Get("TOFgeometry");
d08a92dd	112
	113	}
	114	//______________________________________________________________________________
	115
	116	AliTOFClusterFinder::~AliTOFClusterFinder()
	117	{
	118
	119	//
	120	// Destructor
	121	//
	122
	123	if (fDigits)
	124	{
	125	fDigits->Delete();
	126	delete fDigits;
	127	fDigits=0;
	128	}
	129	if (fRecPoints)
	130	{
	131	fRecPoints->Delete();
	132	delete fRecPoints;
	133	fRecPoints=0;
	134	}
	135
	136	delete fTOFGeometry;
	137
	138	}
	139	//______________________________________________________________________________
	140
	141	void AliTOFClusterFinder::Digits2RecPoints(Int_t iEvent)
	142	{
	143	//
	144	// Converts digits to recpoints for TOF
	145	//
	146
	147	fRunLoader->GetEvent(iEvent);
	148
	149	fTreeD = fTOFLoader->TreeD();
	150	if (fTreeD == 0x0)
	151	{
	152	AliFatal("AliTOFClusterFinder: Can not get TreeD");
	153	}
	154
	155	TBranch *branch = fTreeD->GetBranch("TOF");
	156	if (!branch) {
	157	AliError("can't get the branch with the TOF digits !");
	158	return;
	159	}
	160
	161	TClonesArray dummy("AliTOFdigit",10000), *digits=&dummy;
	162	branch->SetAddress(&digits);
	163
	164	ResetRecpoint();
	165
	166	fTreeR = fTOFLoader->TreeR();
	167	if (fTreeR == 0x0)
	168	{
	169	fTOFLoader->MakeTree("R");
	170	fTreeR = fTOFLoader->TreeR();
	171	}
	172
	173	Int_t bufsize = 32000;
	174	fTreeR->Branch("TOF", &fRecPoints, bufsize);
	175
176	fTreeD->GetEvent(0);
177	Int_t nDigits = digits->GetEntriesFast();
178	AliDebug(2,Form("Number of TOF digits: %d",nDigits));
179
180	Int_t ii, jj;
181	Int_t dig[5];
182	Float_t g[3];
183	Double_t h[5];
6dc9348d	184	Float_t ToT;
6dc9348d	185	Double_t TdcND;
d08a92dd	186	for (ii=0; ii<nDigits; ii++) {
	187	AliTOFdigit d = (AliTOFdigit)digits->UncheckedAt(ii);
	188	dig[0]=d->GetSector();
	189	dig[1]=d->GetPlate();
	190	dig[2]=d->GetStrip();
	191	dig[3]=d->GetPadz();
	192	dig[4]=d->GetPadx();
	193
	194	for (jj=0; jj<3; jj++) g[jj] = 0.;
	195	fTOFGeometry->GetPos(dig,g);
	196
	197	h[0] = TMath::Sqrt(g[0]g[0]+g[1]g[1]);
	198	h[1] = TMath::ATan2(g[1],g[0]);
	199	h[2] = g[2];
	200	h[3] = d->GetTdc();
	201	h[4] = d->GetAdc();
6dc9348d	202	ToT = d->GetToT();
6dc9348d	203	TdcND = d->GetTdcND();
d08a92dd	204
6dc9348d	205	AliTOFcluster *tofCluster = new AliTOFcluster(h,d->GetTracks(),dig,ii,ToT, TdcND);
d08a92dd	206	InsertCluster(tofCluster);
	207
	208	}
	209
	210	AliInfo(Form("Number of found clusters: %i", fNumberOfTofClusters));
	211
37879eed	212	CalibrateRecPoint();
d08a92dd	213	FillRecPoint();
	214
	215	fTreeR->Fill();
	216	ResetRecpoint();
	217
	218	fTOFLoader = fRunLoader->GetLoader("TOFLoader");
	219	fTOFLoader->WriteRecPoints("OVERWRITE");
	220
	221	}
	222	//______________________________________________________________________________
	223
	224	void AliTOFClusterFinder::Digits2RecPoints(AliRawReader *rawReader,
	225	TTree *clustersTree)
	226	{
	227	//
	228	// Converts RAW data to recpoints for TOF
	229	//
	230
	231	const Int_t kDDL = fTOFGeometry->NDDL()*fTOFGeometry->NSectors();
	232
	233	ResetRecpoint();
	234
	235	Int_t bufsize = 32000;
	236	clustersTree->Branch("TOF", &fRecPoints, bufsize);
	237
	238	Int_t ii = 0;
	239	Int_t indexDDL = 0;
	240
	241	Int_t detectorIndex[5];
	242	Float_t position[3];
	243	Double_t cylindricalPosition[5];
37879eed	244	Float_t ToT;
37879eed	245	Double_t TdcND;
d08a92dd	246
	247	for (indexDDL = 0; indexDDL < kDDL; indexDDL++) {
	248
	249	rawReader->Reset();
	250	AliTOFRawStream tofInput(rawReader);
	251	rawReader->Select(5, indexDDL, indexDDL);
	252
	253	while(tofInput.Next()) {
	254
	255	detectorIndex[0] = tofInput.GetSector();
	256	detectorIndex[1] = tofInput.GetPlate();
	257	detectorIndex[2] = tofInput.GetStrip();
	258	detectorIndex[3] = tofInput.GetPadZ();
	259	detectorIndex[4] = tofInput.GetPadX();
	260
	261	for (ii=0; ii<3; ii++) position[ii] = 0.;
	262
	263	fTOFGeometry->GetPos(detectorIndex, position);
	264
	265	cylindricalPosition[0] = TMath::Sqrt(position[0]position[0] + position[1]position[1]);
	266	cylindricalPosition[1] = TMath::ATan2(position[1], position[0]);
	267	cylindricalPosition[2] = position[2];
	268	cylindricalPosition[3] = tofInput.GetTofBin();
	269	cylindricalPosition[4] = tofInput.GetADCbin();
37879eed	270	ToT = tofInput.GetADCbin();
37879eed	271	TdcND = -1.;
d08a92dd	272	AliTOFcluster *tofCluster = new AliTOFcluster(cylindricalPosition, detectorIndex);
37879eed	273	tofCluster->SetToT(ToT);
37879eed	274	tofCluster->SetTDCND(TdcND);
d08a92dd	275	InsertCluster(tofCluster);
	276
	277	} // while loop
	278
	279	} // loop on DDL files
	280
	281	AliInfo(Form("Number of found clusters: %i", fNumberOfTofClusters));
	282
37879eed	283	CalibrateRecPoint();
d08a92dd	284	FillRecPoint();
	285
	286	clustersTree->Fill();
37879eed	287
d08a92dd	288	ResetRecpoint();
	289
	290	}
	291	//______________________________________________________________________________
	292
	293	void AliTOFClusterFinder::Digits2RecPoints(Int_t iEvent, AliRawReader *rawReader)
	294	{
	295	//
	296	// Converts RAW data to recpoints for TOF
	297	//
	298
	299	const Int_t kDDL = fTOFGeometry->NDDL()*fTOFGeometry->NSectors();
	300
	301	fRunLoader->GetEvent(iEvent);
	302
	303	AliDebug(2,Form(" Event number %2i ", iEvent));
	304
	305	fTreeR = fTOFLoader->TreeR();
	306
	307	if (fTreeR == 0x0){
	308	fTOFLoader->MakeTree("R");
	309	fTreeR = fTOFLoader->TreeR();
	310	}
	311
	312	Int_t bufsize = 32000;
	313	fTreeR->Branch("TOF", &fRecPoints, bufsize);
	314
	315	Int_t ii = 0;
	316	Int_t indexDDL = 0;
	317
	318	Int_t detectorIndex[5];
	319	Float_t position[3];
	320	Double_t cylindricalPosition[5];
37879eed	321	Float_t ToT;
37879eed	322	Double_t TdcND;
d08a92dd	323
	324	for (indexDDL = 0; indexDDL < kDDL; indexDDL++) {
	325
	326	rawReader->Reset();
	327	AliTOFRawStream tofInput(rawReader);
	328	rawReader->Select(5, indexDDL, indexDDL);
	329
	330	while(tofInput.Next()) {
	331
	332	detectorIndex[0] = (Int_t)tofInput.GetSector();
	333	detectorIndex[1] = (Int_t)tofInput.GetPlate();
	334	detectorIndex[2] = (Int_t)tofInput.GetStrip();
	335	detectorIndex[3] = (Int_t)tofInput.GetPadZ();
	336	detectorIndex[4] = (Int_t)tofInput.GetPadX();
	337
	338	for (ii=0; ii<3; ii++) position[ii] = 0.;
	339
	340	fTOFGeometry->GetPos(detectorIndex, position);
	341
	342	cylindricalPosition[0] = (Double_t)TMath::Sqrt(position[0]position[0] + position[1]position[1]);
	343	cylindricalPosition[1] = (Double_t)TMath::ATan2(position[1], position[0]);
	344	cylindricalPosition[2] = (Double_t)position[2];
	345	cylindricalPosition[3] = (Double_t)tofInput.GetTofBin();
	346	cylindricalPosition[4] = (Double_t)tofInput.GetADCbin();
37879eed	347	ToT = tofInput.GetADCbin();
	348	TdcND = -1.;
	349
d08a92dd	350	AliTOFcluster *tofCluster = new AliTOFcluster(cylindricalPosition, detectorIndex);
37879eed	351	tofCluster->SetToT(ToT);
37879eed	352	tofCluster->SetTDCND(TdcND);
d08a92dd	353	InsertCluster(tofCluster);
	354
	355	} // while loop
	356
	357	} // DDL Loop
	358
	359	AliInfo(Form("Number of found clusters: %i", fNumberOfTofClusters));
	360
37879eed	361	CalibrateRecPoint();
d08a92dd	362	FillRecPoint();
	363
	364	fTreeR->Fill();
	365	ResetRecpoint();
	366
	367	fTOFLoader = fRunLoader->GetLoader("TOFLoader");
	368	fTOFLoader->WriteRecPoints("OVERWRITE");
	369
	370	}
	371	//______________________________________________________________________________
	372
	373	void AliTOFClusterFinder::Raw2Digits(Int_t iEvent, AliRawReader *rawReader)
	374	{
	375	//
	376	// Converts RAW data to MC digits for TOF
	377	//
	378	// (temporary solution)
	379	//
	380
	381	fRunLoader->GetEvent(iEvent);
	382
	383	fTreeD = fTOFLoader->TreeD();
	384	if (fTreeD)
	385	{
	386	AliInfo("AliTOFClusterFinder: TreeD re-creation");
	387	fTreeD = 0x0;
	388	fTOFLoader->MakeTree("D");
	389	fTreeD = fTOFLoader->TreeD();
	390	}
	391
	392
	393	fTreeR = fTOFLoader->TreeD();
	394	if (fTreeD == 0x0)
	395	{
	396	fTOFLoader->MakeTree("D");
	397	fTreeD = fTOFLoader->TreeD();
	398	}
	399
	400	TClonesArray dummy("AliTOFdigit",10000), *tofDigits=&dummy;
	401	Int_t bufsize = 32000;
	402	fTreeD->Branch("TOF", &tofDigits, bufsize);
	403
	404
	405	const Int_t kDDL = fTOFGeometry->NDDL()*fTOFGeometry->NSectors();
	406
	407	fRunLoader->GetEvent(iEvent);
	408
	409	AliDebug(2,Form(" Event number %2i ", iEvent));
	410
	411	Int_t indexDDL = 0;
	412
	413	Int_t detectorIndex[5];
	414	Float_t digit[2];
	415
	416	for (indexDDL = 0; indexDDL < kDDL; indexDDL++) {
	417
	418	rawReader->Reset();
	419	AliTOFRawStream tofInput(rawReader);
	420	rawReader->Select(5, indexDDL, indexDDL);
	421
	422	while(tofInput.Next()) {
	423
	424	detectorIndex[0] = tofInput.GetSector();
	425	detectorIndex[1] = tofInput.GetPlate();
426	detectorIndex[2] = tofInput.GetStrip();
427	detectorIndex[3] = tofInput.GetPadX();
428	detectorIndex[4] = tofInput.GetPadZ();
429
430	digit[0] = (Float_t)tofInput.GetTofBin();
431	digit[1] = (Float_t)tofInput.GetADCbin();
432
433	Int_t tracknum[3]={-1,-1,-1};
434
435	TClonesArray &aDigits = *tofDigits;
436	Int_t last=tofDigits->GetEntriesFast();
437	new (aDigits[last]) AliTOFdigit(tracknum, detectorIndex, digit);
438
439	} // while loop
440
441	} // DDL Loop
442
443	fTreeD->Fill();
444
445	fTOFLoader = fRunLoader->GetLoader("TOFLoader");
446	fTOFLoader->WriteDigits("OVERWRITE");
447
448	}
449	//______________________________________________________________________________
450
451	Int_t AliTOFClusterFinder::InsertCluster(AliTOFcluster *tofCluster) {
452	//---------------------------------------------------------------------------//
453	// This function adds a TOF cluster to the array of TOF clusters sorted in Z //
454	//---------------------------------------------------------------------------//
455	if (fNumberOfTofClusters==kTofMaxCluster) {
456	AliError("Too many clusters !");
457	return 1;
458	}
459
460	if (fNumberOfTofClusters==0) {
461	fTofClusters[fNumberOfTofClusters++] = tofCluster;
462	return 0;
463	}
464
465	Int_t ii = FindClusterIndex(tofCluster->GetZ());
466	memmove(fTofClusters+ii+1 ,fTofClusters+ii,(fNumberOfTofClusters-ii)sizeof(AliTOFcluster));
467	fTofClusters[ii] = tofCluster;
468	fNumberOfTofClusters++;
469
470	return 0;
471
472	}
473	//_________________________________________________________________________
474
475	Int_t AliTOFClusterFinder::FindClusterIndex(Double_t z) const {
476	//--------------------------------------------------------------------
477	// This function returns the index of the nearest cluster
478	//--------------------------------------------------------------------
479	if (fNumberOfTofClusters==0) return 0;
480	if (z <= fTofClusters[0]->GetZ()) return 0;
481	if (z > fTofClusters[fNumberOfTofClusters-1]->GetZ()) return fNumberOfTofClusters;
482	Int_t b = 0, e = fNumberOfTofClusters-1, m = (b+e)/2;
483	for (; b<e; m=(b+e)/2) {
484	if (z > fTofClusters[m]->GetZ()) b=m+1;
485	else e=m;
486	}
487
488	return m;
489
490	}
491	//_________________________________________________________________________
492
493	void AliTOFClusterFinder::FillRecPoint()
494	{
495	//
496	// Copy the global array of AliTOFcluster, i.e. fTofClusters (sorted
497	// in Z) in the global TClonesArray of AliTOFcluster,
498	// i.e. fRecPoints.
499	//
500
501	Int_t ii, jj;
502
503	Int_t detectorIndex[5];
504	Double_t cylindricalPosition[5];
505	Int_t trackLabels[3];
506	Int_t digitIndex = -1;
6dc9348d	507	Float_t ToT;
6dc9348d	508	Double_t TdcND;
d08a92dd	509
	510	TClonesArray &lRecPoints = *fRecPoints;
	511
	512	for (ii=0; ii<fNumberOfTofClusters; ii++) {
	513
	514	digitIndex = fTofClusters[ii]->GetIndex();
	515	for(jj=0; jj<5; jj++) detectorIndex[jj] = fTofClusters[ii]->GetDetInd(jj);
	516	for(jj=0; jj<3; jj++) trackLabels[jj] = fTofClusters[ii]->GetLabel(jj);
	517	cylindricalPosition[0] = fTofClusters[ii]->GetR();
	518	cylindricalPosition[1] = fTofClusters[ii]->GetPhi();
	519	cylindricalPosition[2] = fTofClusters[ii]->GetZ();
	520	cylindricalPosition[3] = fTofClusters[ii]->GetTDC();
	521	cylindricalPosition[4] = fTofClusters[ii]->GetADC();
6dc9348d	522	ToT = fTofClusters[ii]->GetToT();
6dc9348d	523	TdcND = fTofClusters[ii]->GetTDCND();
d08a92dd	524
6dc9348d	525	new(lRecPoints[ii]) AliTOFcluster(cylindricalPosition, trackLabels, detectorIndex, digitIndex, ToT, TdcND);
d08a92dd	526
	527	//AliInfo(Form("%3i %3i %f %f %f %f %f %2i %2i %2i %1i %2i",ii,digitIndex, cylindricalPosition[2],cylindricalPosition[0],cylindricalPosition[1],cylindricalPosition[3],cylindricalPosition[4],detectorIndex[0],detectorIndex[1],detectorIndex[2],detectorIndex[3],detectorIndex[4]));
	528
	529	} // loop on clusters
	530
	531	}
37879eed	532
	533	//_________________________________________________________________________
	534	void AliTOFClusterFinder::CalibrateRecPoint()
	535	{
	536	//
	537	// Copy the global array of AliTOFcluster, i.e. fTofClusters (sorted
	538	// in Z) in the global TClonesArray of AliTOFcluster,
	539	// i.e. fRecPoints.
	540	//
	541
	542	Int_t ii, jj;
	543
	544	Int_t detectorIndex[5];
	545	Int_t digitIndex = -1;
	546	Float_t ToT;
	547	Float_t TdcCorr;
	548	AliInfo(" Calibrating TOF Clusters: ")
	549	AliTOFcalib *calib = new AliTOFcalib(fTOFGeometry);
	550	calib->ReadParFromCDB("TOF/CDB",1);
	551	AliTOFCal *TOFCalArray = calib->GetTOFCalArray();
	552
	553	for (ii=0; ii<fNumberOfTofClusters; ii++) {
	554	digitIndex = fTofClusters[ii]->GetIndex();
	555	for(jj=0; jj<5; jj++) detectorIndex[jj] = fTofClusters[ii]->GetDetInd(jj);
	556
	557	Int_t index = calib->GetIndex(detectorIndex);
	558
	559	AliTOFChannel * CalChannel = TOFCalArray->GetChannel(index);
	560	Float_t par[6];
	561	for (Int_t j = 0; j<6; j++){
	562	par[j]=CalChannel->GetSlewPar(j);
	563	}
	564	ToT = fTofClusters[ii]->GetToT();
	565	Float_t TimeCorr=par[0]+par[1]ToT+par[2]ToTToT+par[3]ToTToTToT+par[4]ToTToTToTToT+par[5]ToTToTToTToT*ToT;
	566	TdcCorr=(fTofClusters[ii]->GetTDC()AliTOFGeometry::TdcBinWidth()+32)1.E-3-TimeCorr;
	567	TdcCorr=(TdcCorr*1E3-32)/AliTOFGeometry::TdcBinWidth();
	568	fTofClusters[ii]->SetTDC(TdcCorr);
	569
	570	} // loop on clusters
	571
	572	delete calib;
	573	}
d08a92dd	574	//______________________________________________________________________________
	575
	576	void AliTOFClusterFinder::ResetRecpoint()
	577	{
	578	//
	579	// Clear the list of reconstructed points
	580	//
	581
	582	fNumberOfTofClusters = 0;
	583	if (fRecPoints) fRecPoints->Clear();
	584
	585	}
	586	//______________________________________________________________________________
	587
	588	void AliTOFClusterFinder::Load()
	589	{
	590	//
	591	// Load TOF.Digits.root and TOF.RecPoints.root files
	592	//
	593
	594	fTOFLoader->LoadDigits("READ");
	595	fTOFLoader->LoadRecPoints("recreate");
	596
	597	}
	598	//______________________________________________________________________________
	599
	600	void AliTOFClusterFinder::LoadClusters()
	601	{
	602	//
	603	// Load TOF.RecPoints.root file
	604	//
	605
	606	fTOFLoader->LoadRecPoints("recreate");
	607
	608	}
	609	//______________________________________________________________________________
	610
	611	void AliTOFClusterFinder::UnLoad()
	612	{
	613	//
	614	// Unload TOF.Digits.root and TOF.RecPoints.root files
	615	//
	616
	617	fTOFLoader->UnloadDigits();
	618	fTOFLoader->UnloadRecPoints();
	619
	620	}
	621	//______________________________________________________________________________
	622
	623	void AliTOFClusterFinder::UnLoadClusters()
	624	{
	625	//
	626	// Unload TOF.RecPoints.root file
	627	//
	628
	629	fTOFLoader->UnloadRecPoints();
	630
	631	}
	632	//______________________________________________________________________________