[u/mrichter/AliRoot.git] / PWG1 / TPC / AliPerformanceDEdx.cxx

//------------------------------------------------------------------------------
// Implementation of AliPerformanceDEdx class. It keeps information from 
// comparison of reconstructed and MC particle tracks. In addtion, 
// it keeps selection cuts used during comparison. The comparison 
// information is stored in the ROOT histograms. Analysis of these 
// histograms can be done by using Analyse() class function. The result of 
// the analysis (histograms/graphs) are stored in the folder which is 
// a data of AliPerformanceDEdx.
//  
// Author: J.Otwinowski 04/02/2008 
// Changes by M.Knichel 24/09/2010
//------------------------------------------------------------------------------

/*
 
  // after running comparison task, read the file, and get component
  gROOT->LoadMacro("$ALICE_ROOT/PWG1/Macros/LoadMyLibs.C");
  LoadMyLibs();
  TFile f("Output.root");
  //AliPerformanceDEdx * compObj = (AliPerformanceDEdx*)f.Get("AliPerformanceDEdx");
  AliPerformanceDEdx * compObj = (AliPerformanceDEdx*)coutput->FindObject("AliPerformanceDEdx");

  // Analyse comparison data
  compObj->Analyse();

  // the output histograms/graphs will be stored in the folder "folderDEdx" 
  compObj->GetAnalysisFolder()->ls("*");

  // user can save whole comparison object (or only folder with anlysed histograms) 
  // in the seperate output file (e.g.)
  TFile fout("Analysed_DEdx.root","recreate");
  //compObj->Write(); // compObj->GetAnalysisFolder()->Write();
  compObj->GetAnalysisFolder()->Write();
  fout.Close();

*/

#include <TDirectory.h>
#include <TAxis.h>
#include <TCanvas.h>
#include <TH1.h>
#include <TH2.h>
#include <TF1.h>

#include "AliPerformanceDEdx.h" 
#include "AliESDEvent.h"
#include "AliTracker.h"
#include "AliMCEvent.h"
#include "AliESDtrack.h"
#include "AliStack.h"
#include "AliLog.h" 
#include "AliMCInfoCuts.h" 
#include "AliMathBase.h"
#include "AliRecInfoCuts.h" 
#include "AliTreeDraw.h"
#include "AliHeader.h"
#include "AliGenEventHeader.h"

using namespace std;

ClassImp(AliPerformanceDEdx)

Bool_t AliPerformanceDEdx::fgMergeTHnSparse = kFALSE;

//_____________________________________________________________________________
AliPerformanceDEdx::AliPerformanceDEdx():
  AliPerformanceObject("AliPerformanceDEdx"),

  // dEdx 
  fDeDxHisto(0),
  fFolderObj(0),
  
  // Cuts 
  fCutsRC(0), 
  fCutsMC(0),

  // histogram folder 
  fAnalysisFolder(0)
{
  // default constructor	
  Init();
}

//_____________________________________________________________________________
AliPerformanceDEdx::AliPerformanceDEdx(Char_t* name="AliPerformanceDEdx", Char_t* title="AliPerformanceDEdx",Int_t analysisMode=0, Bool_t hptGenerator=kFALSE):
  AliPerformanceObject(name,title),

  // dEdx 
  fDeDxHisto(0),
  fFolderObj(0),
  
  // Cuts 
  fCutsRC(0), 
  fCutsMC(0),

  // histogram folder 
  fAnalysisFolder(0)
{
  // named constructor

  SetAnalysisMode(analysisMode);
  SetHptGenerator(hptGenerator);
  Init();
}


//_____________________________________________________________________________
AliPerformanceDEdx::~AliPerformanceDEdx()
{
  // destructor
  if(fDeDxHisto)  delete fDeDxHisto; fDeDxHisto=0; 
  if(fAnalysisFolder) delete fAnalysisFolder; fAnalysisFolder=0;
}

//_____________________________________________________________________________
void AliPerformanceDEdx::Init()
{
  // Init histograms
  
  // TPC dEdx
  // set pt bins
  Int_t nPBins = 50;
  Double_t pMin = 1.e-2, pMax = 10.;

  Double_t *binsP = 0;
  if (IsHptGenerator())  { 
    nPBins = 100; pMax = 100.;
    binsP = CreateLogAxis(nPBins,pMin,pMax);
  } else {
    binsP = CreateLogAxis(nPBins,pMin,pMax);
  }


  /*
  Int_t nPBins = 31;
    Double_t binsP[32] = {0.,0.05,0.1,0.15,0.2,0.25,0.3,0.35,0.4,0.45,0.5,0.55,0.6,0.7,0.8,0.9,1.0,1.2,1.4,1.6,1.8,2.0,2.25,2.5,2.75,3.,3.5,4.,5.,6.,8.,10.};
    Double_t pMin = 0., pMax = 10.;

    if(IsHptGenerator() == kTRUE) {
      nPBins = 100;
      pMin = 0.; pMax = 100.;
    }
   */

   //dedx:alpha:y:z:snp:tgl:ncls:p
   //dedx:phi:y:z:snp:tgl:ncls:p
   //Int_t binsQA[8]    = {300, 50, 50,  50, 50, 50, 80, nPBins};
   //Double_t xminQA[8] = {0, -4,-20,-250, -1, -2, 0, pMin};
   //Double_t xmaxQA[8] = {300, 4, 20, 250,  1,  2, 160, pMax};
   Int_t binsQA[8]    = {300, 144, 50,  50, 50, 50, 80, nPBins};
   Double_t xminQA[8] = {0, -TMath::Pi(),-20,-250, -1, -2, 0, pMin};
   Double_t xmaxQA[8] = {300, TMath::Pi(), 20, 250,  1,  2, 160, pMax};

   //fDeDxHisto = new THnSparseF("fDeDxHisto","dedx:alpha:y:z:snp:tgl:ncls:momentum",8,binsQA,xminQA,xmaxQA);
   fDeDxHisto = new THnSparseF("fDeDxHisto","dedx:phi:y:z:snp:tgl:ncls:momentum",8,binsQA,xminQA,xmaxQA);
   fDeDxHisto->SetBinEdges(7,binsP);

   fDeDxHisto->GetAxis(0)->SetTitle("dedx (a.u.)");
   fDeDxHisto->GetAxis(1)->SetTitle("#phi (rad)");
   fDeDxHisto->GetAxis(2)->SetTitle("y (cm)");
   fDeDxHisto->GetAxis(3)->SetTitle("z (cm)");
   fDeDxHisto->GetAxis(4)->SetTitle("sin#phi");
   fDeDxHisto->GetAxis(5)->SetTitle("tan#lambda");
   fDeDxHisto->GetAxis(6)->SetTitle("ncls");
   fDeDxHisto->GetAxis(7)->SetTitle("p (GeV/c)");
   //fDeDxHisto->Sumw2();

   // Init cuts
   if(!fCutsMC) 
     AliDebug(AliLog::kError, "ERROR: Cannot find AliMCInfoCuts object");
   if(!fCutsRC) 
     AliDebug(AliLog::kError, "ERROR: Cannot find AliRecInfoCuts object");

   // init folder
   fAnalysisFolder = CreateFolder("folderDEdx","Analysis de/dx Folder");
}

//_____________________________________________________________________________
void AliPerformanceDEdx::ProcessTPC(AliStack* const /*stack*/, AliESDtrack *const /*esdTrack*/)
{
  // Fill dE/dx  comparison information
  AliDebug(AliLog::kWarning, "Warning: Not implemented");
}

//_____________________________________________________________________________
void AliPerformanceDEdx::ProcessInnerTPC(AliStack* const stack, AliESDtrack *const esdTrack, AliESDEvent* const esdEvent)
{
 //
 // Fill TPC track information at inner TPC wall
 // 
  if(!esdEvent) return;
  if(!esdTrack) return;

  if( IsUseTrackVertex() ) 
  { 
    // Relate TPC inner params to prim. vertex
    const AliESDVertex *vtxESD = esdEvent->GetPrimaryVertexTracks();
    Double_t x[3]; esdTrack->GetXYZ(x);
    Double_t b[3]; AliTracker::GetBxByBz(x,b);
    Bool_t isOK = esdTrack->RelateToVertexTPCBxByBz(vtxESD, b, kVeryBig);
    if(!isOK) return;

    /*
      // JMT -- recaluclate DCA for HLT if not present
      if ( dca[0] == 0. && dca[1] == 0. ) {
        track->GetDZ( vtxESD->GetX(), vtxESD->GetY(), vtxESD->GetZ(), esdEvent->GetMagneticField(), dca );
      }
    */
  }

  // get external param. at inner TPC wall
  const AliExternalTrackParam *innerParam =  esdTrack->GetInnerParam();
  if(!innerParam) return;

  Float_t dca[2], cov[3]; // dca_xy, dca_z, sigma_xy, sigma_xy_z, sigma_z
  esdTrack->GetImpactParametersTPC(dca,cov);

  if((esdTrack->GetStatus()&AliESDtrack::kTPCrefit)==0) return; // TPC refit

  //
  // select primaries
  //
  Double_t dcaToVertex = -1;
  if( fCutsRC->GetDCAToVertex2D() ) 
  {
      dcaToVertex = TMath::Sqrt(dca[0]*dca[0]/fCutsRC->GetMaxDCAToVertexXY()/fCutsRC->GetMaxDCAToVertexXY()                    + dca[1]*dca[1]/fCutsRC->GetMaxDCAToVertexZ()/fCutsRC->GetMaxDCAToVertexZ()); 
  }
  if(fCutsRC->GetDCAToVertex2D() && dcaToVertex > 1) return;
  if(!fCutsRC->GetDCAToVertex2D() && TMath::Abs(dca[0]) > fCutsRC->GetMaxDCAToVertexXY()) return;
  if(!fCutsRC->GetDCAToVertex2D() && TMath::Abs(dca[1]) > fCutsRC->GetMaxDCAToVertexZ()) return;

  Float_t dedx = esdTrack->GetTPCsignal();
  Int_t ncls = esdTrack->GetTPCNcls();

  Double_t pt = innerParam->Pt();
  Double_t lam = TMath::ATan2(innerParam->Pz(),innerParam->Pt());
  Double_t p = pt/TMath::Cos(lam);
  //Double_t alpha = innerParam->GetAlpha();
  Double_t phi = TMath::ATan2(innerParam->Py(),innerParam->Px());
  //if(phi<0.) phi += 2.*TMath::Phi();
  Double_t y = innerParam->GetY();
  Double_t z = innerParam->GetZ();
  Double_t snp = innerParam->GetSnp();
  Double_t tgl = innerParam->GetTgl();

  //Double_t vDeDxHisto[8] = {dedx,alpha,y,z,snp,tgl,ncls,p};
  Double_t vDeDxHisto[8] = {dedx,phi,y,z,snp,tgl,ncls,p};
  fDeDxHisto->Fill(vDeDxHisto); 

  if(!stack) return;
}

//_____________________________________________________________________________
void AliPerformanceDEdx::ProcessTPCITS(AliStack* const /*stack*/, AliESDtrack *const /*esdTrack*/)
{
  // Fill dE/dx  comparison information
  
   AliDebug(AliLog::kWarning, "Warning: Not implemented");
}

//_____________________________________________________________________________
void AliPerformanceDEdx::ProcessConstrained(AliStack* const /*stack*/, AliESDtrack *const /*esdTrack*/)
{
  // Fill dE/dx  comparison information
  
   AliDebug(AliLog::kWarning, "Warning: Not implemented");
}

//_____________________________________________________________________________
Long64_t AliPerformanceDEdx::Merge(TCollection* const list) 
{
  // Merge list of objects (needed by PROOF)

  if (!list)
  return 0;

  if (list->IsEmpty())
  return 1;

  TIterator* iter = list->MakeIterator();
  TObject* obj = 0;
  TObjArray* objArrayList = 0;
  objArrayList = new TObjArray();

  // collection of generated histograms
  Int_t count=0;
  while((obj = iter->Next()) != 0) 
  {
    AliPerformanceDEdx* entry = dynamic_cast<AliPerformanceDEdx*>(obj);
    if (entry == 0) continue; 
    if (fgMergeTHnSparse) {
        if ((fDeDxHisto) && (entry->fDeDxHisto)) { fDeDxHisto->Add(entry->fDeDxHisto); }        
    }
    // the analysisfolder is only merged if present
    if (entry->fFolderObj) { objArrayList->Add(entry->fFolderObj); }

    count++;
  }
  if (fFolderObj) { fFolderObj->Merge(objArrayList); } 
  // to signal that track histos were not merged: reset
  if (!fgMergeTHnSparse) { fDeDxHisto->Reset(); }
  // delete
  if (objArrayList)  delete objArrayList;  objArrayList=0;  

return count;
}

//_____________________________________________________________________________
void AliPerformanceDEdx::Exec(AliMCEvent* const mcEvent, AliESDEvent *const esdEvent, AliESDfriend *const esdFriend, const Bool_t bUseMC, const Bool_t bUseESDfriend)
{
  // Process comparison information 
  //
  if(!esdEvent) 
  {
      AliDebug(AliLog::kError, "esdEvent not available");
      return;
  }
  AliHeader* header = 0;
  AliGenEventHeader* genHeader = 0;
  AliStack* stack = 0;
  TArrayF vtxMC(3);
  
  if(bUseMC)
  {
    if(!mcEvent) {
      AliDebug(AliLog::kError, "mcEvent not available");
      return;
    }

    // get MC event header
    header = mcEvent->Header();
    if (!header) {
      AliDebug(AliLog::kError, "Header not available");
      return;
    }
    // MC particle stack
    stack = mcEvent->Stack();
    if (!stack) {
      AliDebug(AliLog::kError, "Stack not available");
      return;
    }

    // get MC vertex
    genHeader = header->GenEventHeader();
    if (!genHeader) {
      AliDebug(AliLog::kError, "Could not retrieve genHeader from Header");
      return;
    }
    genHeader->PrimaryVertex(vtxMC);

  } // end bUseMC

  // use ESD friends
  if(bUseESDfriend) {
    if(!esdFriend) {
      AliDebug(AliLog::kError, "esdFriend not available");
      return;
    }
  }

  // trigger
  if(!bUseMC && GetTriggerClass()) {
    Bool_t isEventTriggered = esdEvent->IsTriggerClassFired(GetTriggerClass());
    if(!isEventTriggered) return; 
  }

  // get event vertex
  const AliESDVertex *vtxESD = NULL;
  if( IsUseTrackVertex() ) 
  { 
    // track vertex
    vtxESD = esdEvent->GetPrimaryVertexTracks();
  }
  else {
    // TPC track vertex
    vtxESD = esdEvent->GetPrimaryVertexTPC();
  }
  if(vtxESD && (vtxESD->GetStatus()<=0)) return;

  //  Process events
  for (Int_t iTrack = 0; iTrack < esdEvent->GetNumberOfTracks(); iTrack++) 
  { 
    AliESDtrack *track = esdEvent->GetTrack(iTrack);
    if(!track) continue;

    if(GetAnalysisMode() == 0) ProcessTPC(stack,track);
    else if(GetAnalysisMode() == 1) ProcessTPCITS(stack,track);
    else if(GetAnalysisMode() == 2) ProcessConstrained(stack,track);
    else if(GetAnalysisMode() == 3) ProcessInnerTPC(stack,track,esdEvent);
    else {
      printf("ERROR: AnalysisMode %d \n",fAnalysisMode);
      return;
    }
  }
}

//_____________________________________________________________________________
void AliPerformanceDEdx::Analyse()
{
  // Analyze comparison information and store output histograms
  // in the folder "folderDEdx"
  //
  TH1::AddDirectory(kFALSE);
  TH1::SetDefaultSumw2(kFALSE);
  TH1F *h1D=0;
  TH2F *h2D=0;
  TObjArray *aFolderObj = new TObjArray;
  TString selString;

  char name[256];
  char title[256];

  for(Int_t i=1; i<8; i++) { 
    AddProjection(aFolderObj, "dedx", fDeDxHisto, 0, i);
  }

  // resolution histograms for mips
  //dedx:phi:y:z:snp:tgl:ncls:p
  fDeDxHisto->GetAxis(2)->SetRangeUser(-15.,14.999);
  fDeDxHisto->GetAxis(3)->SetRangeUser(-120.,119.999);
  fDeDxHisto->GetAxis(4)->SetRangeUser(-0.4, 0.399);
  fDeDxHisto->GetAxis(5)->SetRangeUser(-0.9,0.89);
  fDeDxHisto->GetAxis(6)->SetRangeUser(60.,160.);
  fDeDxHisto->GetAxis(7)->SetRangeUser(0.4,0.499);
  
  
  selString = "mipsres";
  AddProjection(aFolderObj, "dedx", fDeDxHisto, 0, &selString);

  //
  TObjArray *arr[7] = {0};
  TF1 *f1[7] = {0};
  
  for(Int_t i=1; i<8; i++) 
  { 
    arr[i] = new TObjArray;
    f1[i] = new TF1("gaus","gaus");
    //printf("i %d \n",i);

    h2D = (TH2F*)fDeDxHisto->Projection(0,i);

    f1[i]->SetRange(40,60); // should be pion peak
    h2D->FitSlicesY(f1[i],0,-1,10,"QNR",arr[i]); // gaus fit of pion peak

    h1D = (TH1F*)arr[i]->At(1);
    sprintf(name,"mean_dedx_mips_vs_%d",i);
    h1D->SetName(name);
    sprintf(title,"%s vs %s","mean_dedx_mips (a.u.)",fDeDxHisto->GetAxis(i)->GetTitle());
    h1D->SetTitle(title);
    h1D->GetXaxis()->SetTitle(fDeDxHisto->GetAxis(i)->GetTitle());
    h1D->GetYaxis()->SetTitle("mean_dedx_mips (a.u.)");
    //h1D->SetMinimum(40);
    //h1D->SetMaximum(60);

    aFolderObj->Add(h1D);

    h1D = (TH1F*)arr[i]->At(2);
    sprintf(name,"res_dedx_mips_vs_%d",i);
    h1D->SetName(name);
    sprintf(title,"%s vs %s","res_dedx_mips (a.u)",fDeDxHisto->GetAxis(i)->GetTitle());
    h1D->SetTitle(title);
    h1D->GetXaxis()->SetTitle(fDeDxHisto->GetAxis(i)->GetTitle());
    h1D->GetYaxis()->SetTitle("res_dedx_mips (a.u.)");
    //h1D->SetMinimum(0);
    //h1D->SetMaximum(6);

    aFolderObj->Add(h1D);
  }
    // select MIPs (version from AliTPCPerfomanceSummary)
    fDeDxHisto->GetAxis(0)->SetRangeUser(35,60);
    fDeDxHisto->GetAxis(2)->SetRangeUser(-20,20);
    fDeDxHisto->GetAxis(3)->SetRangeUser(-250,250);
    fDeDxHisto->GetAxis(4)->SetRangeUser(-1, 1);
    fDeDxHisto->GetAxis(5)->SetRangeUser(-1,1);
    fDeDxHisto->GetAxis(6)->SetRangeUser(80,160);
    fDeDxHisto->GetAxis(7)->SetRangeUser(0.4,0.55);
    
    selString = "mips";
    AddProjection(aFolderObj, "dedx", fDeDxHisto, 0, &selString);
    
    selString = "mips_C";
    fDeDxHisto->GetAxis(5)->SetRangeUser(-3,0);
    AddProjection(aFolderObj, "dedx", fDeDxHisto, 0, 5, &selString);
    AddProjection(aFolderObj, "dedx", fDeDxHisto, 0, 1, &selString);
    
    selString = "mips_A";
    fDeDxHisto->GetAxis(5)->SetRangeUser(0,3);
    AddProjection(aFolderObj, "dedx", fDeDxHisto, 0, 5, &selString);    
    AddProjection(aFolderObj, "dedx", fDeDxHisto, 0, 1, &selString);
    
    //restore cuts
    fDeDxHisto->GetAxis(0)->SetRangeUser(0,300);
    fDeDxHisto->GetAxis(2)->SetRangeUser(-20,20);
    fDeDxHisto->GetAxis(3)->SetRangeUser(-250,250);
    fDeDxHisto->GetAxis(4)->SetRangeUser(-1, 1);
    fDeDxHisto->GetAxis(5)->SetRangeUser(-3,3);
    fDeDxHisto->GetAxis(6)->SetRangeUser(0,160);
    fDeDxHisto->GetAxis(7)->SetRangeUser(1e-2,10);    
  
    printf("exportToFolder\n");
    // export objects to analysis folder
    fAnalysisFolder = ExportToFolder(aFolderObj);
    if (fFolderObj) delete fFolderObj;
    fFolderObj = aFolderObj;
    aFolderObj=0;
}

//_____________________________________________________________________________
TFolder* AliPerformanceDEdx::ExportToFolder(TObjArray * array) 
{
  // recreate folder avery time and export objects to new one
  //
  AliPerformanceDEdx * comp=this;
  TFolder *folder = comp->GetAnalysisFolder();

  TString name, title;
  TFolder *newFolder = 0;
  Int_t i = 0;
  Int_t size = array->GetSize();

  if(folder) { 
     // get name and title from old folder
     name = folder->GetName();  
     title = folder->GetTitle();  

	 // delete old one
     delete folder;

	 // create new one
     newFolder = CreateFolder(name.Data(),title.Data());
     newFolder->SetOwner();

	 // add objects to folder
     while(i < size) {
	   newFolder->Add(array->At(i));
	   i++;
	 }
  }

return newFolder;
}


//_____________________________________________________________________________
TFolder* AliPerformanceDEdx::CreateFolder(TString name,TString title) { 
// create folder for analysed histograms
TFolder *folder = 0;
  folder = new TFolder(name.Data(),title.Data());

  return folder;
}
Commit	Line	Data
7cc34f08	1	//------------------------------------------------------------------------------
	2	// Implementation of AliPerformanceDEdx class. It keeps information from
	3	// comparison of reconstructed and MC particle tracks. In addtion,
	4	// it keeps selection cuts used during comparison. The comparison
	5	// information is stored in the ROOT histograms. Analysis of these
	6	// histograms can be done by using Analyse() class function. The result of
	7	// the analysis (histograms/graphs) are stored in the folder which is
	8	// a data of AliPerformanceDEdx.
	9	//
	10	// Author: J.Otwinowski 04/02/2008
28bb9d1f	11	// Changes by M.Knichel 24/09/2010
7cc34f08	12	//------------------------------------------------------------------------------
	13
	14	/*
	15
	16	// after running comparison task, read the file, and get component
	17	gROOT->LoadMacro("$ALICE_ROOT/PWG1/Macros/LoadMyLibs.C");
	18	LoadMyLibs();
	19	TFile f("Output.root");
	20	//AliPerformanceDEdx * compObj = (AliPerformanceDEdx*)f.Get("AliPerformanceDEdx");
	21	AliPerformanceDEdx * compObj = (AliPerformanceDEdx*)coutput->FindObject("AliPerformanceDEdx");
	22
	23	// Analyse comparison data
	24	compObj->Analyse();
	25
	26	// the output histograms/graphs will be stored in the folder "folderDEdx"
	27	compObj->GetAnalysisFolder()->ls("*");
	28
	29	// user can save whole comparison object (or only folder with anlysed histograms)
	30	// in the seperate output file (e.g.)
faa3b211	31	TFile fout("Analysed_DEdx.root","recreate");
	32	//compObj->Write(); // compObj->GetAnalysisFolder()->Write();
	33	compObj->GetAnalysisFolder()->Write();
7cc34f08	34	fout.Close();
	35
	36	*/
	37
	38	#include <TDirectory.h>
	39	#include <TAxis.h>
	40	#include <TCanvas.h>
	41	#include <TH1.h>
	42	#include <TH2.h>
	43	#include <TF1.h>
	44
	45	#include "AliPerformanceDEdx.h"
	46	#include "AliESDEvent.h"
758320f7	47	#include "AliTracker.h"
7cc34f08	48	#include "AliMCEvent.h"
	49	#include "AliESDtrack.h"
	50	#include "AliStack.h"
	51	#include "AliLog.h"
	52	#include "AliMCInfoCuts.h"
	53	#include "AliMathBase.h"
	54	#include "AliRecInfoCuts.h"
	55	#include "AliTreeDraw.h"
	56	#include "AliHeader.h"
	57	#include "AliGenEventHeader.h"
	58
	59	using namespace std;
	60
	61	ClassImp(AliPerformanceDEdx)
	62
28bb9d1f	63	Bool_t AliPerformanceDEdx::fgMergeTHnSparse = kFALSE;
28bb9d1f	64
7cc34f08	65	//_____________________________________________________________________________
	66	AliPerformanceDEdx::AliPerformanceDEdx():
	67	AliPerformanceObject("AliPerformanceDEdx"),
	68
	69	// dEdx
	70	fDeDxHisto(0),
28bb9d1f	71	fFolderObj(0),
7cc34f08	72
	73	// Cuts
	74	fCutsRC(0),
	75	fCutsMC(0),
	76
	77	// histogram folder
	78	fAnalysisFolder(0)
	79	{
	80	// default constructor
	81	Init();
	82	}
	83
	84	//_____________________________________________________________________________
	85	AliPerformanceDEdx::AliPerformanceDEdx(Char_t* name="AliPerformanceDEdx", Char_t* title="AliPerformanceDEdx",Int_t analysisMode=0, Bool_t hptGenerator=kFALSE):
	86	AliPerformanceObject(name,title),
	87
	88	// dEdx
	89	fDeDxHisto(0),
28bb9d1f	90	fFolderObj(0),
7cc34f08	91
	92	// Cuts
	93	fCutsRC(0),
	94	fCutsMC(0),
	95
	96	// histogram folder
	97	fAnalysisFolder(0)
	98	{
	99	// named constructor
	100
	101	SetAnalysisMode(analysisMode);
	102	SetHptGenerator(hptGenerator);
	103	Init();
	104	}
	105
	106
	107	//_____________________________________________________________________________
	108	AliPerformanceDEdx::~AliPerformanceDEdx()
	109	{
	110	// destructor
	111	if(fDeDxHisto) delete fDeDxHisto; fDeDxHisto=0;
	112	if(fAnalysisFolder) delete fAnalysisFolder; fAnalysisFolder=0;
	113	}
	114
	115	//_____________________________________________________________________________
	116	void AliPerformanceDEdx::Init()
	117	{
	118	// Init histograms
	119
	120	// TPC dEdx
	121	// set pt bins
	122	Int_t nPBins = 50;
	123	Double_t pMin = 1.e-2, pMax = 10.;
	124
	125	Double_t *binsP = 0;
	126	if (IsHptGenerator()) {
	127	nPBins = 100; pMax = 100.;
	128	binsP = CreateLogAxis(nPBins,pMin,pMax);
	129	} else {
	130	binsP = CreateLogAxis(nPBins,pMin,pMax);
	131	}
	132
	133
	134	/*
	135	Int_t nPBins = 31;
	136	Double_t binsP[32] = {0.,0.05,0.1,0.15,0.2,0.25,0.3,0.35,0.4,0.45,0.5,0.55,0.6,0.7,0.8,0.9,1.0,1.2,1.4,1.6,1.8,2.0,2.25,2.5,2.75,3.,3.5,4.,5.,6.,8.,10.};
	137	Double_t pMin = 0., pMax = 10.;
	138
	139	if(IsHptGenerator() == kTRUE) {
	140	nPBins = 100;
	141	pMin = 0.; pMax = 100.;
	142	}
	143	*/
	144
	145	//dedx:alpha:y:z:snp:tgl:ncls:p
	146	//dedx:phi:y:z:snp:tgl:ncls:p
	147	//Int_t binsQA[8] = {300, 50, 50, 50, 50, 50, 80, nPBins};
	148	//Double_t xminQA[8] = {0, -4,-20,-250, -1, -2, 0, pMin};
	149	//Double_t xmaxQA[8] = {300, 4, 20, 250, 1, 2, 160, pMax};
e6a60a90	150	Int_t binsQA[8] = {300, 144, 50, 50, 50, 50, 80, nPBins};
7cc34f08	151	Double_t xminQA[8] = {0, -TMath::Pi(),-20,-250, -1, -2, 0, pMin};
	152	Double_t xmaxQA[8] = {300, TMath::Pi(), 20, 250, 1, 2, 160, pMax};
	153
	154	//fDeDxHisto = new THnSparseF("fDeDxHisto","dedx:alpha:y:z:snp:tgl:ncls:momentum",8,binsQA,xminQA,xmaxQA);
	155	fDeDxHisto = new THnSparseF("fDeDxHisto","dedx:phi:y:z:snp:tgl:ncls:momentum",8,binsQA,xminQA,xmaxQA);
	156	fDeDxHisto->SetBinEdges(7,binsP);
	157
	158	fDeDxHisto->GetAxis(0)->SetTitle("dedx (a.u.)");
	159	fDeDxHisto->GetAxis(1)->SetTitle("#phi (rad)");
	160	fDeDxHisto->GetAxis(2)->SetTitle("y (cm)");
	161	fDeDxHisto->GetAxis(3)->SetTitle("z (cm)");
	162	fDeDxHisto->GetAxis(4)->SetTitle("sin#phi");
	163	fDeDxHisto->GetAxis(5)->SetTitle("tan#lambda");
	164	fDeDxHisto->GetAxis(6)->SetTitle("ncls");
	165	fDeDxHisto->GetAxis(7)->SetTitle("p (GeV/c)");
28bb9d1f	166	//fDeDxHisto->Sumw2();
7cc34f08	167
	168	// Init cuts
	169	if(!fCutsMC)
	170	AliDebug(AliLog::kError, "ERROR: Cannot find AliMCInfoCuts object");
	171	if(!fCutsRC)
	172	AliDebug(AliLog::kError, "ERROR: Cannot find AliRecInfoCuts object");
	173
	174	// init folder
	175	fAnalysisFolder = CreateFolder("folderDEdx","Analysis de/dx Folder");
	176	}
	177
	178	//_____________________________________________________________________________
	179	void AliPerformanceDEdx::ProcessTPC(AliStack* const /stack/, AliESDtrack const /esdTrack*/)
	180	{
	181	// Fill dE/dx comparison information
	182	AliDebug(AliLog::kWarning, "Warning: Not implemented");
	183	}
	184
	185	//_____________________________________________________________________________
758320f7	186	void AliPerformanceDEdx::ProcessInnerTPC(AliStack* const stack, AliESDtrack const esdTrack, AliESDEvent const esdEvent)
7cc34f08	187	{
758320f7	188	//
	189	// Fill TPC track information at inner TPC wall
	190	//
	191	if(!esdEvent) return;
7cc34f08	192	if(!esdTrack) return;
7cc34f08	193
758320f7	194	if( IsUseTrackVertex() )
	195	{
	196	// Relate TPC inner params to prim. vertex
	197	const AliESDVertex *vtxESD = esdEvent->GetPrimaryVertexTracks();
	198	Double_t x[3]; esdTrack->GetXYZ(x);
	199	Double_t b[3]; AliTracker::GetBxByBz(x,b);
	200	Bool_t isOK = esdTrack->RelateToVertexTPCBxByBz(vtxESD, b, kVeryBig);
	201	if(!isOK) return;
	202
	203	/*
	204	// JMT -- recaluclate DCA for HLT if not present
	205	if ( dca[0] == 0. && dca[1] == 0. ) {
	206	track->GetDZ( vtxESD->GetX(), vtxESD->GetY(), vtxESD->GetZ(), esdEvent->GetMagneticField(), dca );
	207	}
	208	*/
	209	}
	210
	211	// get external param. at inner TPC wall
7cc34f08	212	const AliExternalTrackParam *innerParam = esdTrack->GetInnerParam();
	213	if(!innerParam) return;
	214
	215	Float_t dca[2], cov[3]; // dca_xy, dca_z, sigma_xy, sigma_xy_z, sigma_z
	216	esdTrack->GetImpactParametersTPC(dca,cov);
	217
	218	if((esdTrack->GetStatus()&AliESDtrack::kTPCrefit)==0) return; // TPC refit
a13f4653	219
	220	//
	221	// select primaries
	222	//
	223	Double_t dcaToVertex = -1;
	224	if( fCutsRC->GetDCAToVertex2D() )
	225	{
	226	dcaToVertex = TMath::Sqrt(dca[0]dca[0]/fCutsRC->GetMaxDCAToVertexXY()/fCutsRC->GetMaxDCAToVertexXY() + dca[1]dca[1]/fCutsRC->GetMaxDCAToVertexZ()/fCutsRC->GetMaxDCAToVertexZ());
7cc34f08	227	}
a13f4653	228	if(fCutsRC->GetDCAToVertex2D() && dcaToVertex > 1) return;
	229	if(!fCutsRC->GetDCAToVertex2D() && TMath::Abs(dca[0]) > fCutsRC->GetMaxDCAToVertexXY()) return;
	230	if(!fCutsRC->GetDCAToVertex2D() && TMath::Abs(dca[1]) > fCutsRC->GetMaxDCAToVertexZ()) return;
	231
	232	Float_t dedx = esdTrack->GetTPCsignal();
	233	Int_t ncls = esdTrack->GetTPCNcls();
	234
	235	Double_t pt = innerParam->Pt();
	236	Double_t lam = TMath::ATan2(innerParam->Pz(),innerParam->Pt());
	237	Double_t p = pt/TMath::Cos(lam);
	238	//Double_t alpha = innerParam->GetAlpha();
	239	Double_t phi = TMath::ATan2(innerParam->Py(),innerParam->Px());
	240	//if(phi<0.) phi += 2.*TMath::Phi();
	241	Double_t y = innerParam->GetY();
	242	Double_t z = innerParam->GetZ();
	243	Double_t snp = innerParam->GetSnp();
	244	Double_t tgl = innerParam->GetTgl();
	245
	246	//Double_t vDeDxHisto[8] = {dedx,alpha,y,z,snp,tgl,ncls,p};
	247	Double_t vDeDxHisto[8] = {dedx,phi,y,z,snp,tgl,ncls,p};
	248	fDeDxHisto->Fill(vDeDxHisto);
7cc34f08	249
	250	if(!stack) return;
	251	}
	252
	253	//_____________________________________________________________________________
	254	void AliPerformanceDEdx::ProcessTPCITS(AliStack* const /stack/, AliESDtrack const /esdTrack*/)
	255	{
	256	// Fill dE/dx comparison information
	257
	258	AliDebug(AliLog::kWarning, "Warning: Not implemented");
	259	}
	260
	261	//_____________________________________________________________________________
	262	void AliPerformanceDEdx::ProcessConstrained(AliStack* const /stack/, AliESDtrack const /esdTrack*/)
	263	{
	264	// Fill dE/dx comparison information
	265
	266	AliDebug(AliLog::kWarning, "Warning: Not implemented");
	267	}
	268
	269	//_____________________________________________________________________________
	270	Long64_t AliPerformanceDEdx::Merge(TCollection* const list)
	271	{
	272	// Merge list of objects (needed by PROOF)
	273
	274	if (!list)
	275	return 0;
	276
	277	if (list->IsEmpty())
	278	return 1;
	279
	280	TIterator* iter = list->MakeIterator();
	281	TObject* obj = 0;
28bb9d1f	282	TObjArray* objArrayList = 0;
28bb9d1f	283	objArrayList = new TObjArray();
7cc34f08	284
	285	// collection of generated histograms
	286	Int_t count=0;
	287	while((obj = iter->Next()) != 0)
	288	{
	289	AliPerformanceDEdx* entry = dynamic_cast<AliPerformanceDEdx*>(obj);
28bb9d1f	290	if (entry == 0) continue;
	291	if (fgMergeTHnSparse) {
	292	if ((fDeDxHisto) && (entry->fDeDxHisto)) { fDeDxHisto->Add(entry->fDeDxHisto); }
	293	}
	294	// the analysisfolder is only merged if present
	295	if (entry->fFolderObj) { objArrayList->Add(entry->fFolderObj); }
7cc34f08	296
7cc34f08	297	count++;
7cc34f08	298	}
28bb9d1f	299	if (fFolderObj) { fFolderObj->Merge(objArrayList); }
	300	// to signal that track histos were not merged: reset
	301	if (!fgMergeTHnSparse) { fDeDxHisto->Reset(); }
	302	// delete
	303	if (objArrayList) delete objArrayList; objArrayList=0;
7cc34f08	304
	305	return count;
	306	}
	307
	308	//_____________________________________________________________________________
	309	void AliPerformanceDEdx::Exec(AliMCEvent* const mcEvent, AliESDEvent const esdEvent, AliESDfriend const esdFriend, const Bool_t bUseMC, const Bool_t bUseESDfriend)
	310	{
	311	// Process comparison information
	312	//
	313	if(!esdEvent)
	314	{
	315	AliDebug(AliLog::kError, "esdEvent not available");
	316	return;
	317	}
	318	AliHeader* header = 0;
	319	AliGenEventHeader* genHeader = 0;
	320	AliStack* stack = 0;
	321	TArrayF vtxMC(3);
	322
	323	if(bUseMC)
	324	{
	325	if(!mcEvent) {
	326	AliDebug(AliLog::kError, "mcEvent not available");
	327	return;
	328	}
	329
	330	// get MC event header
	331	header = mcEvent->Header();
	332	if (!header) {
	333	AliDebug(AliLog::kError, "Header not available");
	334	return;
	335	}
	336	// MC particle stack
	337	stack = mcEvent->Stack();
	338	if (!stack) {
	339	AliDebug(AliLog::kError, "Stack not available");
	340	return;
	341	}
	342
	343	// get MC vertex
	344	genHeader = header->GenEventHeader();
	345	if (!genHeader) {
	346	AliDebug(AliLog::kError, "Could not retrieve genHeader from Header");
	347	return;
	348	}
	349	genHeader->PrimaryVertex(vtxMC);
	350
	351	} // end bUseMC
	352
	353	// use ESD friends
	354	if(bUseESDfriend) {
	355	if(!esdFriend) {
	356	AliDebug(AliLog::kError, "esdFriend not available");
	357	return;
	358	}
	359	}
	360
e6a60a90	361	// trigger
046b4280	362	if(!bUseMC && GetTriggerClass()) {
4bb5f8a9	363	Bool_t isEventTriggered = esdEvent->IsTriggerClassFired(GetTriggerClass());
	364	if(!isEventTriggered) return;
	365	}
7cc34f08	366
758320f7	367	// get event vertex
	368	const AliESDVertex *vtxESD = NULL;
	369	if( IsUseTrackVertex() )
	370	{
	371	// track vertex
	372	vtxESD = esdEvent->GetPrimaryVertexTracks();
	373	}
	374	else {
	375	// TPC track vertex
	376	vtxESD = esdEvent->GetPrimaryVertexTPC();
	377	}
e6a60a90	378	if(vtxESD && (vtxESD->GetStatus()<=0)) return;
7cc34f08	379
	380	// Process events
	381	for (Int_t iTrack = 0; iTrack < esdEvent->GetNumberOfTracks(); iTrack++)
	382	{
	383	AliESDtrack *track = esdEvent->GetTrack(iTrack);
	384	if(!track) continue;
	385
	386	if(GetAnalysisMode() == 0) ProcessTPC(stack,track);
	387	else if(GetAnalysisMode() == 1) ProcessTPCITS(stack,track);
	388	else if(GetAnalysisMode() == 2) ProcessConstrained(stack,track);
758320f7	389	else if(GetAnalysisMode() == 3) ProcessInnerTPC(stack,track,esdEvent);
7cc34f08	390	else {
	391	printf("ERROR: AnalysisMode %d \n",fAnalysisMode);
	392	return;
	393	}
	394	}
	395	}
	396
	397	//_____________________________________________________________________________
	398	void AliPerformanceDEdx::Analyse()
	399	{
	400	// Analyze comparison information and store output histograms
	401	// in the folder "folderDEdx"
	402	//
	403	TH1::AddDirectory(kFALSE);
28bb9d1f	404	TH1::SetDefaultSumw2(kFALSE);
7cc34f08	405	TH1F *h1D=0;
	406	TH2F *h2D=0;
	407	TObjArray *aFolderObj = new TObjArray;
28bb9d1f	408	TString selString;
7cc34f08	409
	410	char name[256];
	411	char title[256];
	412
	413	for(Int_t i=1; i<8; i++) {
28bb9d1f	414	AddProjection(aFolderObj, "dedx", fDeDxHisto, 0, i);
7cc34f08	415	}
	416
	417	// resolution histograms for mips
a13f4653	418	//dedx:phi:y:z:snp:tgl:ncls:p
7cc34f08	419	fDeDxHisto->GetAxis(2)->SetRangeUser(-15.,14.999);
	420	fDeDxHisto->GetAxis(3)->SetRangeUser(-120.,119.999);
	421	fDeDxHisto->GetAxis(4)->SetRangeUser(-0.4, 0.399);
a13f4653	422	fDeDxHisto->GetAxis(5)->SetRangeUser(-0.9,0.89);
a13f4653	423	fDeDxHisto->GetAxis(6)->SetRangeUser(60.,160.);
7cc34f08	424	fDeDxHisto->GetAxis(7)->SetRangeUser(0.4,0.499);
28bb9d1f	425
	426
	427	selString = "mipsres";
	428	AddProjection(aFolderObj, "dedx", fDeDxHisto, 0, &selString);
7cc34f08	429
	430	//
	431	TObjArray *arr[7] = {0};
	432	TF1 *f1[7] = {0};
	433
	434	for(Int_t i=1; i<8; i++)
	435	{
	436	arr[i] = new TObjArray;
	437	f1[i] = new TF1("gaus","gaus");
	438	//printf("i %d \n",i);
	439
	440	h2D = (TH2F*)fDeDxHisto->Projection(0,i);
	441
	442	f1[i]->SetRange(40,60); // should be pion peak
	443	h2D->FitSlicesY(f1[i],0,-1,10,"QNR",arr[i]); // gaus fit of pion peak
	444
	445	h1D = (TH1F*)arr[i]->At(1);
	446	sprintf(name,"mean_dedx_mips_vs_%d",i);
	447	h1D->SetName(name);
	448	sprintf(title,"%s vs %s","mean_dedx_mips (a.u.)",fDeDxHisto->GetAxis(i)->GetTitle());
	449	h1D->SetTitle(title);
	450	h1D->GetXaxis()->SetTitle(fDeDxHisto->GetAxis(i)->GetTitle());
	451	h1D->GetYaxis()->SetTitle("mean_dedx_mips (a.u.)");
	452	//h1D->SetMinimum(40);
	453	//h1D->SetMaximum(60);
	454
	455	aFolderObj->Add(h1D);
	456
	457	h1D = (TH1F*)arr[i]->At(2);
	458	sprintf(name,"res_dedx_mips_vs_%d",i);
	459	h1D->SetName(name);
	460	sprintf(title,"%s vs %s","res_dedx_mips (a.u)",fDeDxHisto->GetAxis(i)->GetTitle());
	461	h1D->SetTitle(title);
	462	h1D->GetXaxis()->SetTitle(fDeDxHisto->GetAxis(i)->GetTitle());
	463	h1D->GetYaxis()->SetTitle("res_dedx_mips (a.u.)");
	464	//h1D->SetMinimum(0);
	465	//h1D->SetMaximum(6);
	466
	467	aFolderObj->Add(h1D);
	468	}
28bb9d1f	469	// select MIPs (version from AliTPCPerfomanceSummary)
	470	fDeDxHisto->GetAxis(0)->SetRangeUser(35,60);
	471	fDeDxHisto->GetAxis(2)->SetRangeUser(-20,20);
	472	fDeDxHisto->GetAxis(3)->SetRangeUser(-250,250);
	473	fDeDxHisto->GetAxis(4)->SetRangeUser(-1, 1);
	474	fDeDxHisto->GetAxis(5)->SetRangeUser(-1,1);
	475	fDeDxHisto->GetAxis(6)->SetRangeUser(80,160);
	476	fDeDxHisto->GetAxis(7)->SetRangeUser(0.4,0.55);
	477
	478	selString = "mips";
	479	AddProjection(aFolderObj, "dedx", fDeDxHisto, 0, &selString);
	480
	481	selString = "mips_C";
	482	fDeDxHisto->GetAxis(5)->SetRangeUser(-3,0);
	483	AddProjection(aFolderObj, "dedx", fDeDxHisto, 0, 5, &selString);
	484	AddProjection(aFolderObj, "dedx", fDeDxHisto, 0, 1, &selString);
	485
	486	selString = "mips_A";
	487	fDeDxHisto->GetAxis(5)->SetRangeUser(0,3);
	488	AddProjection(aFolderObj, "dedx", fDeDxHisto, 0, 5, &selString);
	489	AddProjection(aFolderObj, "dedx", fDeDxHisto, 0, 1, &selString);
	490
	491	//restore cuts
	492	fDeDxHisto->GetAxis(0)->SetRangeUser(0,300);
	493	fDeDxHisto->GetAxis(2)->SetRangeUser(-20,20);
	494	fDeDxHisto->GetAxis(3)->SetRangeUser(-250,250);
	495	fDeDxHisto->GetAxis(4)->SetRangeUser(-1, 1);
	496	fDeDxHisto->GetAxis(5)->SetRangeUser(-3,3);
	497	fDeDxHisto->GetAxis(6)->SetRangeUser(0,160);
	498	fDeDxHisto->GetAxis(7)->SetRangeUser(1e-2,10);
	499
	500	printf("exportToFolder\n");
	501	// export objects to analysis folder
	502	fAnalysisFolder = ExportToFolder(aFolderObj);
	503	if (fFolderObj) delete fFolderObj;
	504	fFolderObj = aFolderObj;
	505	aFolderObj=0;
7cc34f08	506	}
	507
	508	//_____________________________________________________________________________
	509	TFolder* AliPerformanceDEdx::ExportToFolder(TObjArray * array)
	510	{
	511	// recreate folder avery time and export objects to new one
	512	//
	513	AliPerformanceDEdx * comp=this;
	514	TFolder *folder = comp->GetAnalysisFolder();
	515
	516	TString name, title;
	517	TFolder *newFolder = 0;
	518	Int_t i = 0;
	519	Int_t size = array->GetSize();
	520
	521	if(folder) {
	522	// get name and title from old folder
	523	name = folder->GetName();
	524	title = folder->GetTitle();
	525
	526	// delete old one
	527	delete folder;
	528
	529	// create new one
	530	newFolder = CreateFolder(name.Data(),title.Data());
	531	newFolder->SetOwner();
	532
	533	// add objects to folder
	534	while(i < size) {
	535	newFolder->Add(array->At(i));
	536	i++;
	537	}
	538	}
	539
	540	return newFolder;
	541	}
	542
	543
	544	//_____________________________________________________________________________
	545	TFolder* AliPerformanceDEdx::CreateFolder(TString name,TString title) {
	546	// create folder for analysed histograms
	547	TFolder *folder = 0;
	548	folder = new TFolder(name.Data(),title.Data());
	549
	550	return folder;
	551	}
	552