[u/mrichter/AliRoot.git] / PWGLF / FORWARD / analysis2 / AliCentralMCCorrectionsTask.cxx

// 
// Calculate the corrections in the central regions
// 
// Inputs: 
//   - AliESDEvent 
//
// Outputs: 
//   - AliAODCentralMult 
// 
// Histograms 
//   
// Corrections used 
// 
#include "AliCentralMCCorrectionsTask.h"
#include "AliTriggerAnalysis.h"
#include "AliPhysicsSelection.h"
#include "AliLog.h"
#include "AliHeader.h"
#include "AliGenEventHeader.h"
#include "AliESDEvent.h"
#include "AliAODHandler.h"
#include "AliMultiplicity.h"
#include "AliInputEventHandler.h"
#include "AliStack.h"
#include "AliMCEvent.h"
#include "AliAODForwardMult.h"
#include "AliCentralCorrSecondaryMap.h"
#include "AliForwardUtil.h"
#include <TH1.h>
#include <TH2D.h>
#include <TDirectory.h>
#include <TList.h>
#include <TROOT.h>
#include <iostream>

//====================================================================
namespace {
  const char* GetEventName(Bool_t tr, Bool_t vtx) 
  {
    return Form("nEvents%s%s", (tr ? "Tr" : ""), (vtx ? "Vtx" : ""));
  }
  /*const char* GetHitsName(UShort_t d, Char_t r) 
  {
    return Form("hitsSPD%d%c", d, r);
  }
  const char* GetStripsName(UShort_t d, Char_t r)
  {
    return Form("stripsSPD%d%c", d, r);
  }
  const char* GetPrimaryName(Char_t r, Bool_t trVtx)
  {
    return Form("primaries%s%s", 
		((r == 'I' || r == 'i') ? "Inner" : "Outer"), 
		(trVtx ? "TrVtx" : "All"));
		}
  */
}

//====================================================================
AliCentralMCCorrectionsTask::AliCentralMCCorrectionsTask()
  : AliAnalysisTaskSE(),
    fInspector(),
    fTrackDensity(),
    fVtxBins(0),
    fFirstEvent(true),
    fHEvents(0), 
    fHEventsTr(0), 
    fHEventsTrVtx(0),
    fVtxAxis(),
    fEtaAxis(),
    fList(),
    fNPhiBins(20)    
{
  // 
  // Constructor 
  // 
  // Parameters:
  //    name Name of task 
  //
  DGUARD(fDebug,0,"Default construction of AliCentralMCCorrectionsTask");
}

//____________________________________________________________________
AliCentralMCCorrectionsTask::AliCentralMCCorrectionsTask(const char* name)
  : AliAnalysisTaskSE(name),
    fInspector("eventInspector"), 
    fTrackDensity("trackDensity"),
    fVtxBins(0),
    fFirstEvent(true),
    fHEvents(0), 
    fHEventsTr(0), 
    fHEventsTrVtx(0),
    fVtxAxis(10,-10,10), 
    fEtaAxis(200,-4,6),
    fList(),
    fNPhiBins(20)    
{
  // 
  // Constructor 
  // 
  // Parameters:
  //    name Name of task 
  //
  DGUARD(fDebug,0,"Named construction of AliCentralMCCorrectionsTask: %s",name);
  DefineOutput(1, TList::Class());
  DefineOutput(2, TList::Class());
}

//____________________________________________________________________
AliCentralMCCorrectionsTask::AliCentralMCCorrectionsTask(const AliCentralMCCorrectionsTask& o)
  : AliAnalysisTaskSE(o),
    fInspector(o.fInspector),
    fTrackDensity(),
    fVtxBins(0),
    fFirstEvent(o.fFirstEvent),
    fHEvents(o.fHEvents), 
    fHEventsTr(o.fHEventsTr), 
    fHEventsTrVtx(o.fHEventsTrVtx),
    fVtxAxis(10,-10,10), 
    fEtaAxis(200,-4,6),
    fList(o.fList),
    fNPhiBins(o.fNPhiBins)    
{
  // 
  // Copy constructor 
  // 
  // Parameters:
  //    o Object to copy from 
  //
  DGUARD(fDebug,0,"Copy construction of AliCentralMCCorrectionsTask");
}

//____________________________________________________________________
AliCentralMCCorrectionsTask&
AliCentralMCCorrectionsTask::operator=(const AliCentralMCCorrectionsTask& o)
{
  // 
  // Assignment operator 
  // 
  // Parameters:
  //    o Object to assign from 
  // 
  // Return:
  //    Reference to this object 
  //
  DGUARD(fDebug,3,"Assignment of AliCentralMCCorrectionsTask");
  if (&o == this) return *this; 
  fInspector         = o.fInspector;
  fTrackDensity      = o.fTrackDensity;
  fVtxBins           = o.fVtxBins;
  fFirstEvent        = o.fFirstEvent;
  fHEvents           = o.fHEvents;
  fHEventsTr         = o.fHEventsTr;
  fHEventsTrVtx      = o.fHEventsTrVtx;
  SetVertexAxis(o.fVtxAxis);
  SetEtaAxis(o.fEtaAxis);
  fNPhiBins          = o.fNPhiBins;

  return *this;
}

//____________________________________________________________________
void
AliCentralMCCorrectionsTask::Init()
{
  // 
  // Initialize the task 
  // 
  //
  DGUARD(fDebug,1,"Initialize AliCentralMCCorrectionsTask");
}

//____________________________________________________________________
void
AliCentralMCCorrectionsTask::SetVertexAxis(Int_t nBin, Double_t min, 
					   Double_t max)
{
  // 
  // Set the vertex axis to use
  // 
  // Parameters:
  //    nBins Number of bins
  //    vzMin Least @f$z@f$ coordinate of interation point
  //    vzMax Largest @f$z@f$ coordinate of interation point
  //
  DGUARD(fDebug,3,"Set vertex axis AliCentralMCCorrectionsTask [%d,%f,%f]",
	 nBin, min, max);
  if (max < min) { 
    Double_t tmp = min;
    min          = max;
    max          = tmp;
  }
  if (min < -10) 
    AliWarning(Form("Minimum vertex %f < -10, make sure you want this",min));
  if (max > +10) 
    AliWarning(Form("Minimum vertex %f > +10, make sure you want this",max));
  fVtxAxis.Set(nBin, min, max);
}
//____________________________________________________________________
void
AliCentralMCCorrectionsTask::SetVertexAxis(const TAxis& axis)
{
  // 
  // Set the vertex axis to use
  // 
  // Parameters:
  //    axis Axis
  //
  SetVertexAxis(axis.GetNbins(),axis.GetXmin(),axis.GetXmax());
}

//____________________________________________________________________
void
AliCentralMCCorrectionsTask::SetEtaAxis(Int_t nBin, Double_t min, Double_t max)
{
  // 
  // Set the eta axis to use
  // 
  // Parameters:
  //    nBins Number of bins
  //    vzMin Least @f$\eta@f$ 
  //    vzMax Largest @f$\eta@f$ 
  //
  DGUARD(fDebug,3,"Set eta axis AliCentralMCCorrectionsTask [%d,%f,%f]",
	 nBin, min, max);
  if (max < min) { 
    Double_t tmp = min;
    min          = max;
    max          = tmp;
  }
  if (min < -4) 
    AliWarning(Form("Minimum eta %f < -4, make sure you want this",min));
  if (max > +6) 
    AliWarning(Form("Minimum eta %f > +6, make sure you want this",max));
  fEtaAxis.Set(nBin, min, max);
}
//____________________________________________________________________
void
AliCentralMCCorrectionsTask::SetEtaAxis(const TAxis& axis)
{
  // 
  // Set the eta axis to use
  // 
  // Parameters:
  //    axis Axis
  //
  SetEtaAxis(axis.GetNbins(),axis.GetXmin(),axis.GetXmax());
}

//____________________________________________________________________
void
AliCentralMCCorrectionsTask::DefineBins(TList* l)
{
  DGUARD(fDebug,1,"Define bins in AliCentralMCCorrectionsTask");
  if (!fVtxBins) fVtxBins = new TObjArray(fVtxAxis.GetNbins(), 1);
  if (fVtxBins->GetEntries() > 0) return;

  fVtxBins->SetOwner();
  for (Int_t i = 1; i <= fVtxAxis.GetNbins(); i++) { 
    Double_t low  = fVtxAxis.GetBinLowEdge(i);
    Double_t high = fVtxAxis.GetBinUpEdge(i);
    VtxBin*  bin  = new VtxBin(low, high, fEtaAxis, fNPhiBins);
    fVtxBins->AddAt(bin, i);
    bin->DefineOutput(l);
  }
}

//____________________________________________________________________
void
AliCentralMCCorrectionsTask::UserCreateOutputObjects()
{
  // 
  // Create output objects 
  // 
  //
  DGUARD(fDebug,1,"Create user output for AliCentralMCCorrectionsTask");
  fList = new TList;
  fList->SetOwner();
  fList->SetName(Form("%sSums", GetName()));

  DefineBins(fList);

  fHEvents = new TH1I(GetEventName(false,false),
		      "Number of all events", 
		      fVtxAxis.GetNbins(), 
		      fVtxAxis.GetXmin(), 
		      fVtxAxis.GetXmax());
  fHEvents->SetXTitle("v_{z} [cm]");
  fHEvents->SetYTitle("# of events");
  fHEvents->SetFillColor(kBlue+1);
  fHEvents->SetFillStyle(3001);
  fHEvents->SetDirectory(0);
  fList->Add(fHEvents);

  fHEventsTr = new TH1I(GetEventName(true, false), 
			"Number of triggered events",
			fVtxAxis.GetNbins(), 
			fVtxAxis.GetXmin(), 
			fVtxAxis.GetXmax());
  fHEventsTr->SetXTitle("v_{z} [cm]");
  fHEventsTr->SetYTitle("# of events");
  fHEventsTr->SetFillColor(kRed+1);
  fHEventsTr->SetFillStyle(3001);
  fHEventsTr->SetDirectory(0);
  fList->Add(fHEventsTr);

  fHEventsTrVtx = new TH1I(GetEventName(true,true),
			   "Number of events w/trigger and vertex", 
			   fVtxAxis.GetNbins(), 
			   fVtxAxis.GetXmin(), 
			   fVtxAxis.GetXmax());
  fHEventsTrVtx->SetXTitle("v_{z} [cm]");
  fHEventsTrVtx->SetYTitle("# of events");
  fHEventsTrVtx->SetFillColor(kBlue+1);
  fHEventsTrVtx->SetFillStyle(3001);
  fHEventsTrVtx->SetDirectory(0);
  fList->Add(fHEventsTrVtx);

  // Copy axis objects to output 
  TH1* vtxAxis = new TH1D("vtxAxis", "Vertex axis", 
			  fVtxAxis.GetNbins(), 
			  fVtxAxis.GetXmin(), 
			  fVtxAxis.GetXmax());
  TH1* etaAxis = new TH1D("etaAxis", "Eta axis", 
			  fEtaAxis.GetNbins(), 
			  fEtaAxis.GetXmin(), 
			  fEtaAxis.GetXmax());
  fList->Add(vtxAxis);
  fList->Add(etaAxis);

  AliInfo(Form("Initialising sub-routines: %p, %p", 
	       &fInspector, &fTrackDensity));
  fInspector.DefineOutput(fList);
  fInspector.Init(fVtxAxis);
  fTrackDensity.DefineOutput(fList);

  PostData(1, fList);
}
//____________________________________________________________________
void
AliCentralMCCorrectionsTask::UserExec(Option_t*)
{
  // 
  // Process each event 
  // 
  // Parameters:
  //    option Not used
  //  

  DGUARD(fDebug,1,"AliCentralMCCorrectionsTask process an event");
  // Get the input data - MC event
  AliMCEvent*  mcEvent = MCEvent();
  if (!mcEvent) { 
    AliWarning("No MC event found");
    return;
  }

  // Get the input data - ESD event
  AliESDEvent* esd = dynamic_cast<AliESDEvent*>(InputEvent());
  if (!esd) { 
    AliWarning("No ESD event found for input event");
    return;
  }

  //--- Read run information -----------------------------------------
  if (fFirstEvent && esd->GetESDRun()) {
    fInspector.ReadRunDetails(esd);
    
    AliInfo(Form("Initializing with parameters from the ESD:\n"
		 "         AliESDEvent::GetBeamEnergy()   ->%f\n"
		 "         AliESDEvent::GetBeamType()     ->%s\n"
		 "         AliESDEvent::GetCurrentL3()    ->%f\n"
		 "         AliESDEvent::GetMagneticField()->%f\n"
		 "         AliESDEvent::GetRunNumber()    ->%d\n",
		 esd->GetBeamEnergy(),
		 esd->GetBeamType(),
		 esd->GetCurrentL3(),
		 esd->GetMagneticField(),
		 esd->GetRunNumber()));

    Print();
    fFirstEvent = false;
  }

  // Some variables 
  UInt_t   triggers; // Trigger bits
  Bool_t   lowFlux;  // Low flux flag
  UShort_t iVz;      // Vertex bin from ESD
  Double_t vZ;       // Z coordinate from ESD
  Double_t cent;     // Centrality 
  UShort_t iVzMc;    // Vertex bin from MC
  Double_t vZMc;     // Z coordinate of IP vertex from MC
  Double_t b;        // Impact parameter
  Int_t    nPart;    // Number of participants 
  Int_t    nBin;     // Number of binary collisions 
  Double_t phiR;     // Reaction plane from MC
  UShort_t nClusters;// Number of SPD clusters 
  // Process the data 
  UInt_t retESD = fInspector.Process(esd, triggers, lowFlux, iVz, vZ, 
				     cent, nClusters);
  fInspector.ProcessMC(mcEvent, triggers, iVzMc, vZMc, 
		       b, nPart, nBin, phiR);

  Bool_t isInel   = triggers & AliAODForwardMult::kInel;
  Bool_t hasVtx   = retESD == AliFMDMCEventInspector::kOk;

  // Fill the event count histograms 
  if (isInel)           fHEventsTr->Fill(vZMc);
  if (isInel && hasVtx) fHEventsTrVtx->Fill(vZMc);
  fHEvents->Fill(vZMc);

  // Now find our vertex bin object 
  VtxBin* bin = 0;
  if (iVzMc > 0 && iVzMc <= fVtxAxis.GetNbins()) 
    bin = static_cast<VtxBin*>(fVtxBins->At(iVzMc));
  if (!bin) { 
    // AliError(Form("No vertex bin object @ %d (%f)", iVzMc, vZMc));
    return;
  }

  // Now process our input data and store in own ESD object 
  fTrackDensity.Calculate(*mcEvent, vZMc, *bin->fHits, bin->fPrimary);
  bin->fCounts->Fill(0.5);
  
  PostData(1, fList);
}

//____________________________________________________________________
void
AliCentralMCCorrectionsTask::Terminate(Option_t*)
{
  // 
  // End of job
  // 
  // Parameters:
  //    option Not used 
  //
  DGUARD(fDebug,1,"AliCentralMCCorrectionsTask analyse merged output");

  fList = dynamic_cast<TList*>(GetOutputData(1));
  if (!fList) {
    AliError("No output list defined");
    return;
  }

  DefineBins(fList);

  // Output list 
  TList* output = new TList;
  output->SetOwner();
  output->SetName(Form("%sResults", GetName()));

  // --- Fill correction object --------------------------------------
  AliCentralCorrSecondaryMap* corr = new AliCentralCorrSecondaryMap;
  corr->SetVertexAxis(fVtxAxis);
  // corr->SetEtaAxis(fEtaAxis);

  TIter     next(fVtxBins);
  VtxBin*   bin = 0;
  UShort_t  iVz = 1;
  while ((bin = static_cast<VtxBin*>(next()))) 
    bin->Finish(fList, output, iVz++, corr);

  output->Add(corr);

  PostData(2, output);
}

//____________________________________________________________________
void
AliCentralMCCorrectionsTask::Print(Option_t* option) const
{
  std::cout << ClassName() << "\n"
	    << "  Vertex bins:      " << fVtxAxis.GetNbins() << '\n'
	    << "  Vertex range:     [" << fVtxAxis.GetXmin() 
	    << "," << fVtxAxis.GetXmax() << "]\n"
	    << "  Eta bins:         " << fEtaAxis.GetNbins() << '\n'
	    << "  Eta range:        [" << fEtaAxis.GetXmin() 
	    << "," << fEtaAxis.GetXmax() << "]\n"
	    << "  # of phi bins:    " << fNPhiBins 
	    << std::endl;
  gROOT->IncreaseDirLevel();
  fInspector.Print(option);
  fTrackDensity.Print(option);
  gROOT->DecreaseDirLevel();
}

//====================================================================
const char*
AliCentralMCCorrectionsTask::VtxBin::BinName(Double_t low, 
					     Double_t high) 
{
  static TString buf;
  buf = Form("vtx%+05.1f_%+05.1f", low, high);
  buf.ReplaceAll("+", "p");
  buf.ReplaceAll("-", "m");
  buf.ReplaceAll(".", "d");
  return buf.Data();
}


//____________________________________________________________________
AliCentralMCCorrectionsTask::VtxBin::VtxBin()
  : fHits(0), 
    fPrimary(0),
    fCounts(0)
{
}
//____________________________________________________________________
AliCentralMCCorrectionsTask::VtxBin::VtxBin(Double_t     low, 
					    Double_t     high, 
					    const TAxis& axis,
					    UShort_t     nPhi)
  : TNamed(BinName(low, high), 
	   Form("%+5.1fcm<v_{z}<%+5.1fcm", low, high)),
    fHits(0), 
    fPrimary(0),
    fCounts(0)
{
  fPrimary = new TH2D("primary", "Primaries", 
		      axis.GetNbins(), axis.GetXmin(), axis.GetXmax(), 
		      nPhi, 0, 2*TMath::Pi());
  fPrimary->SetXTitle("#eta");
  fPrimary->SetYTitle("#varphi [radians]");
  fPrimary->Sumw2();
  fPrimary->SetDirectory(0);

  fHits = static_cast<TH2D*>(fPrimary->Clone("hits"));
  fHits->SetTitle("Hits");
  fHits->SetDirectory(0);

  fCounts = new TH1D("counts", "Counts", 1, 0, 1);
  fCounts->SetXTitle("Events");
  fCounts->SetYTitle("# of Events");
  fCounts->SetDirectory(0);
}

//____________________________________________________________________
AliCentralMCCorrectionsTask::VtxBin::VtxBin(const VtxBin& o)
  : TNamed(o),
    fHits(0),
    fPrimary(0), 
    fCounts(0)
{
  if (o.fHits) {
    fHits = static_cast<TH2D*>(o.fHits->Clone());
    fHits->SetDirectory(0);
  }
  if (o.fPrimary) {
    fPrimary = static_cast<TH2D*>(o.fPrimary->Clone());
    fPrimary->SetDirectory(0);
  }
  if (o.fCounts) {
    fCounts = static_cast<TH1D*>(o.fCounts->Clone());
    fCounts->SetDirectory(0);
  }
}

//____________________________________________________________________
AliCentralMCCorrectionsTask::VtxBin&
AliCentralMCCorrectionsTask::VtxBin::operator=(const VtxBin& o)
{
  if (&o == this) return *this; 
  TNamed::operator=(o);
  fHits    = 0;
  fPrimary = 0;
  fCounts  = 0;
  if (o.fHits) {
    fHits = static_cast<TH2D*>(o.fHits->Clone());
    fHits->SetDirectory(0);
  }
  if (o.fPrimary) {
    fPrimary = static_cast<TH2D*>(o.fPrimary->Clone());
    fPrimary->SetDirectory(0);
  }
  if (o.fCounts) {
    fCounts = static_cast<TH1D*>(o.fCounts->Clone());
    fCounts->SetDirectory(0);
  }
  return *this;
}

//____________________________________________________________________
void
AliCentralMCCorrectionsTask::VtxBin::DefineOutput(TList* l)
{
  TList* d = new TList;
  d->SetName(GetName());
  d->SetOwner();
  l->Add(d);

  d->Add(fHits);
  d->Add(fPrimary);
  d->Add(fCounts);
}
//____________________________________________________________________
void
AliCentralMCCorrectionsTask::VtxBin::Finish(const TList* input, 
					    TList* output, 
					    UShort_t iVz, 
					    AliCentralCorrSecondaryMap* map)
{
  TList* out = new TList;
  out->SetName(GetName());
  out->SetOwner();
  output->Add(out);
  
  TList* l = static_cast<TList*>(input->FindObject(GetName()));
  if (!l) { 
    AliError(Form("List %s not found in %s", GetName(), input->GetName()));
    return;
  }


  TH2D*   hits  = static_cast<TH2D*>(l->FindObject("hits"));
  TH2D*   prim  = static_cast<TH2D*>(l->FindObject("primary"));
  if (!hits || !prim) {
    AliError(Form("Missing histograms: %p, %p", hits, prim));
    return;
  }

  TH2D* h = static_cast<TH2D*>(hits->Clone("bgCorr"));
  h->SetDirectory(0);
  h->Divide(prim);

  map->SetCorrection(iVz, h);

  out->Add(h);
}

//
// EOF
//
Commit	Line	Data
600b313f	1	//
	2	// Calculate the corrections in the central regions
	3	//
	4	// Inputs:
	5	// - AliESDEvent
	6	//
	7	// Outputs:
	8	// - AliAODCentralMult
	9	//
	10	// Histograms
	11	//
	12	// Corrections used
	13	//
	14	#include "AliCentralMCCorrectionsTask.h"
	15	#include "AliTriggerAnalysis.h"
	16	#include "AliPhysicsSelection.h"
	17	#include "AliLog.h"
	18	#include "AliHeader.h"
	19	#include "AliGenEventHeader.h"
	20	#include "AliESDEvent.h"
	21	#include "AliAODHandler.h"
	22	#include "AliMultiplicity.h"
	23	#include "AliInputEventHandler.h"
	24	#include "AliStack.h"
	25	#include "AliMCEvent.h"
	26	#include "AliAODForwardMult.h"
	27	#include "AliCentralCorrSecondaryMap.h"
f53fb4f6	28	#include "AliForwardUtil.h"
600b313f	29	#include <TH1.h>
	30	#include <TH2D.h>
	31	#include <TDirectory.h>
	32	#include <TList.h>
	33	#include <TROOT.h>
	34	#include <iostream>
	35
	36	//====================================================================
	37	namespace {
	38	const char* GetEventName(Bool_t tr, Bool_t vtx)
	39	{
	40	return Form("nEvents%s%s", (tr ? "Tr" : ""), (vtx ? "Vtx" : ""));
	41	}
2f498ec2	42	/const char GetHitsName(UShort_t d, Char_t r)
600b313f	43	{
	44	return Form("hitsSPD%d%c", d, r);
	45	}
	46	const char* GetStripsName(UShort_t d, Char_t r)
	47	{
	48	return Form("stripsSPD%d%c", d, r);
	49	}
	50	const char* GetPrimaryName(Char_t r, Bool_t trVtx)
	51	{
	52	return Form("primaries%s%s",
	53	((r == 'I' \|\| r == 'i') ? "Inner" : "Outer"),
	54	(trVtx ? "TrVtx" : "All"));
2f498ec2	55	}
2f498ec2	56	*/
600b313f	57	}
	58
	59	//====================================================================
	60	AliCentralMCCorrectionsTask::AliCentralMCCorrectionsTask()
	61	: AliAnalysisTaskSE(),
	62	fInspector(),
	63	fTrackDensity(),
	64	fVtxBins(0),
	65	fFirstEvent(true),
	66	fHEvents(0),
	67	fHEventsTr(0),
	68	fHEventsTrVtx(0),
	69	fVtxAxis(),
	70	fEtaAxis(),
	71	fList(),
4a9f6ae6	72	fNPhiBins(20)
600b313f	73	{
	74	//
	75	// Constructor
	76	//
	77	// Parameters:
	78	// name Name of task
	79	//
f53fb4f6	80	DGUARD(fDebug,0,"Default construction of AliCentralMCCorrectionsTask");
600b313f	81	}
	82
	83	//____________________________________________________________________
	84	AliCentralMCCorrectionsTask::AliCentralMCCorrectionsTask(const char* name)
	85	: AliAnalysisTaskSE(name),
	86	fInspector("eventInspector"),
	87	fTrackDensity("trackDensity"),
	88	fVtxBins(0),
	89	fFirstEvent(true),
	90	fHEvents(0),
	91	fHEventsTr(0),
	92	fHEventsTrVtx(0),
	93	fVtxAxis(10,-10,10),
	94	fEtaAxis(200,-4,6),
	95	fList(),
4a9f6ae6	96	fNPhiBins(20)
600b313f	97	{
	98	//
	99	// Constructor
	100	//
	101	// Parameters:
	102	// name Name of task
	103	//
f53fb4f6	104	DGUARD(fDebug,0,"Named construction of AliCentralMCCorrectionsTask: %s",name);
600b313f	105	DefineOutput(1, TList::Class());
	106	DefineOutput(2, TList::Class());
	107	}
	108
	109	//____________________________________________________________________
	110	AliCentralMCCorrectionsTask::AliCentralMCCorrectionsTask(const AliCentralMCCorrectionsTask& o)
	111	: AliAnalysisTaskSE(o),
	112	fInspector(o.fInspector),
	113	fTrackDensity(),
	114	fVtxBins(0),
	115	fFirstEvent(o.fFirstEvent),
	116	fHEvents(o.fHEvents),
	117	fHEventsTr(o.fHEventsTr),
	118	fHEventsTrVtx(o.fHEventsTrVtx),
	119	fVtxAxis(10,-10,10),
	120	fEtaAxis(200,-4,6),
	121	fList(o.fList),
	122	fNPhiBins(o.fNPhiBins)
	123	{
	124	//
	125	// Copy constructor
	126	//
	127	// Parameters:
	128	// o Object to copy from
	129	//
f53fb4f6	130	DGUARD(fDebug,0,"Copy construction of AliCentralMCCorrectionsTask");
600b313f	131	}
	132
	133	//____________________________________________________________________
	134	AliCentralMCCorrectionsTask&
	135	AliCentralMCCorrectionsTask::operator=(const AliCentralMCCorrectionsTask& o)
	136	{
	137	//
	138	// Assignment operator
	139	//
	140	// Parameters:
	141	// o Object to assign from
	142	//
	143	// Return:
	144	// Reference to this object
	145	//
f53fb4f6	146	DGUARD(fDebug,3,"Assignment of AliCentralMCCorrectionsTask");
d015ecfe	147	if (&o == this) return *this;
600b313f	148	fInspector = o.fInspector;
	149	fTrackDensity = o.fTrackDensity;
	150	fVtxBins = o.fVtxBins;
	151	fFirstEvent = o.fFirstEvent;
	152	fHEvents = o.fHEvents;
	153	fHEventsTr = o.fHEventsTr;
	154	fHEventsTrVtx = o.fHEventsTrVtx;
	155	SetVertexAxis(o.fVtxAxis);
	156	SetEtaAxis(o.fEtaAxis);
	157	fNPhiBins = o.fNPhiBins;
	158
	159	return *this;
	160	}
	161
	162	//____________________________________________________________________
	163	void
	164	AliCentralMCCorrectionsTask::Init()
	165	{
	166	//
	167	// Initialize the task
	168	//
	169	//
f53fb4f6	170	DGUARD(fDebug,1,"Initialize AliCentralMCCorrectionsTask");
600b313f	171	}
	172
	173	//____________________________________________________________________
	174	void
	175	AliCentralMCCorrectionsTask::SetVertexAxis(Int_t nBin, Double_t min,
	176	Double_t max)
	177	{
	178	//
	179	// Set the vertex axis to use
	180	//
	181	// Parameters:
	182	// nBins Number of bins
	183	// vzMin Least @f$z@f$ coordinate of interation point
	184	// vzMax Largest @f$z@f$ coordinate of interation point
	185	//
f53fb4f6	186	DGUARD(fDebug,3,"Set vertex axis AliCentralMCCorrectionsTask [%d,%f,%f]",
f53fb4f6	187	nBin, min, max);
bcd522ff	188	if (max < min) {
600b313f	189	Double_t tmp = min;
	190	min = max;
	191	max = tmp;
	192	}
	193	if (min < -10)
	194	AliWarning(Form("Minimum vertex %f < -10, make sure you want this",min));
	195	if (max > +10)
	196	AliWarning(Form("Minimum vertex %f > +10, make sure you want this",max));
	197	fVtxAxis.Set(nBin, min, max);
	198	}
	199	//____________________________________________________________________
	200	void
	201	AliCentralMCCorrectionsTask::SetVertexAxis(const TAxis& axis)
	202	{
	203	//
	204	// Set the vertex axis to use
	205	//
	206	// Parameters:
	207	// axis Axis
	208	//
	209	SetVertexAxis(axis.GetNbins(),axis.GetXmin(),axis.GetXmax());
	210	}
	211
	212	//____________________________________________________________________
	213	void
	214	AliCentralMCCorrectionsTask::SetEtaAxis(Int_t nBin, Double_t min, Double_t max)
	215	{
	216	//
	217	// Set the eta axis to use
	218	//
	219	// Parameters:
	220	// nBins Number of bins
	221	// vzMin Least @f$\eta@f$
	222	// vzMax Largest @f$\eta@f$
	223	//
f53fb4f6	224	DGUARD(fDebug,3,"Set eta axis AliCentralMCCorrectionsTask [%d,%f,%f]",
f53fb4f6	225	nBin, min, max);
bcd522ff	226	if (max < min) {
600b313f	227	Double_t tmp = min;
	228	min = max;
	229	max = tmp;
	230	}
	231	if (min < -4)
	232	AliWarning(Form("Minimum eta %f < -4, make sure you want this",min));
	233	if (max > +6)
	234	AliWarning(Form("Minimum eta %f > +6, make sure you want this",max));
bcd522ff	235	fEtaAxis.Set(nBin, min, max);
600b313f	236	}
	237	//____________________________________________________________________
	238	void
	239	AliCentralMCCorrectionsTask::SetEtaAxis(const TAxis& axis)
	240	{
	241	//
	242	// Set the eta axis to use
	243	//
	244	// Parameters:
	245	// axis Axis
	246	//
	247	SetEtaAxis(axis.GetNbins(),axis.GetXmin(),axis.GetXmax());
	248	}
	249
	250	//____________________________________________________________________
	251	void
	252	AliCentralMCCorrectionsTask::DefineBins(TList* l)
	253	{
f53fb4f6	254	DGUARD(fDebug,1,"Define bins in AliCentralMCCorrectionsTask");
600b313f	255	if (!fVtxBins) fVtxBins = new TObjArray(fVtxAxis.GetNbins(), 1);
	256	if (fVtxBins->GetEntries() > 0) return;
	257
	258	fVtxBins->SetOwner();
	259	for (Int_t i = 1; i <= fVtxAxis.GetNbins(); i++) {
	260	Double_t low = fVtxAxis.GetBinLowEdge(i);
	261	Double_t high = fVtxAxis.GetBinUpEdge(i);
	262	VtxBin* bin = new VtxBin(low, high, fEtaAxis, fNPhiBins);
	263	fVtxBins->AddAt(bin, i);
	264	bin->DefineOutput(l);
	265	}
	266	}
	267
	268	//____________________________________________________________________
	269	void
	270	AliCentralMCCorrectionsTask::UserCreateOutputObjects()
	271	{
	272	//
	273	// Create output objects
	274	//
	275	//
f53fb4f6	276	DGUARD(fDebug,1,"Create user output for AliCentralMCCorrectionsTask");
600b313f	277	fList = new TList;
	278	fList->SetOwner();
	279	fList->SetName(Form("%sSums", GetName()));
	280
	281	DefineBins(fList);
	282
	283	fHEvents = new TH1I(GetEventName(false,false),
	284	"Number of all events",
	285	fVtxAxis.GetNbins(),
	286	fVtxAxis.GetXmin(),
	287	fVtxAxis.GetXmax());
	288	fHEvents->SetXTitle("v_{z} [cm]");
	289	fHEvents->SetYTitle("# of events");
	290	fHEvents->SetFillColor(kBlue+1);
	291	fHEvents->SetFillStyle(3001);
	292	fHEvents->SetDirectory(0);
	293	fList->Add(fHEvents);
	294
	295	fHEventsTr = new TH1I(GetEventName(true, false),
	296	"Number of triggered events",
	297	fVtxAxis.GetNbins(),
	298	fVtxAxis.GetXmin(),
	299	fVtxAxis.GetXmax());
	300	fHEventsTr->SetXTitle("v_{z} [cm]");
	301	fHEventsTr->SetYTitle("# of events");
	302	fHEventsTr->SetFillColor(kRed+1);
	303	fHEventsTr->SetFillStyle(3001);
	304	fHEventsTr->SetDirectory(0);
	305	fList->Add(fHEventsTr);
	306
	307	fHEventsTrVtx = new TH1I(GetEventName(true,true),
	308	"Number of events w/trigger and vertex",
	309	fVtxAxis.GetNbins(),
	310	fVtxAxis.GetXmin(),
	311	fVtxAxis.GetXmax());
	312	fHEventsTrVtx->SetXTitle("v_{z} [cm]");
	313	fHEventsTrVtx->SetYTitle("# of events");
	314	fHEventsTrVtx->SetFillColor(kBlue+1);
	315	fHEventsTrVtx->SetFillStyle(3001);
	316	fHEventsTrVtx->SetDirectory(0);
	317	fList->Add(fHEventsTrVtx);
	318
	319	// Copy axis objects to output
	320	TH1* vtxAxis = new TH1D("vtxAxis", "Vertex axis",
	321	fVtxAxis.GetNbins(),
	322	fVtxAxis.GetXmin(),
	323	fVtxAxis.GetXmax());
	324	TH1* etaAxis = new TH1D("etaAxis", "Eta axis",
	325	fEtaAxis.GetNbins(),
	326	fEtaAxis.GetXmin(),
	327	fEtaAxis.GetXmax());
	328	fList->Add(vtxAxis);
	329	fList->Add(etaAxis);
	330
	331	AliInfo(Form("Initialising sub-routines: %p, %p",
	332	&fInspector, &fTrackDensity));
	333	fInspector.DefineOutput(fList);
	334	fInspector.Init(fVtxAxis);
	335	fTrackDensity.DefineOutput(fList);
	336
	337	PostData(1, fList);
	338	}
	339	//____________________________________________________________________
	340	void
341	AliCentralMCCorrectionsTask::UserExec(Option_t*)
342	{
343	//
344	// Process each event
345	//
346	// Parameters:
347	// option Not used
348	//
349
f53fb4f6	350	DGUARD(fDebug,1,"AliCentralMCCorrectionsTask process an event");
600b313f	351	// Get the input data - MC event
	352	AliMCEvent* mcEvent = MCEvent();
	353	if (!mcEvent) {
	354	AliWarning("No MC event found");
	355	return;
	356	}
	357
	358	// Get the input data - ESD event
	359	AliESDEvent* esd = dynamic_cast<AliESDEvent*>(InputEvent());
	360	if (!esd) {
	361	AliWarning("No ESD event found for input event");
	362	return;
	363	}
	364
	365	//--- Read run information -----------------------------------------
	366	if (fFirstEvent && esd->GetESDRun()) {
	367	fInspector.ReadRunDetails(esd);
	368
	369	AliInfo(Form("Initializing with parameters from the ESD:\n"
	370	" AliESDEvent::GetBeamEnergy() ->%f\n"
	371	" AliESDEvent::GetBeamType() ->%s\n"
	372	" AliESDEvent::GetCurrentL3() ->%f\n"
	373	" AliESDEvent::GetMagneticField()->%f\n"
	374	" AliESDEvent::GetRunNumber() ->%d\n",
	375	esd->GetBeamEnergy(),
	376	esd->GetBeamType(),
	377	esd->GetCurrentL3(),
	378	esd->GetMagneticField(),
	379	esd->GetRunNumber()));
	380
	381	Print();
	382	fFirstEvent = false;
	383	}
	384
	385	// Some variables
	386	UInt_t triggers; // Trigger bits
	387	Bool_t lowFlux; // Low flux flag
	388	UShort_t iVz; // Vertex bin from ESD
	389	Double_t vZ; // Z coordinate from ESD
	390	Double_t cent; // Centrality
	391	UShort_t iVzMc; // Vertex bin from MC
	392	Double_t vZMc; // Z coordinate of IP vertex from MC
	393	Double_t b; // Impact parameter
	394	Int_t nPart; // Number of participants
	395	Int_t nBin; // Number of binary collisions
	396	Double_t phiR; // Reaction plane from MC
	397	UShort_t nClusters;// Number of SPD clusters
	398	// Process the data
	399	UInt_t retESD = fInspector.Process(esd, triggers, lowFlux, iVz, vZ,
	400	cent, nClusters);
	401	fInspector.ProcessMC(mcEvent, triggers, iVzMc, vZMc,
	402	b, nPart, nBin, phiR);
	403
	404	Bool_t isInel = triggers & AliAODForwardMult::kInel;
	405	Bool_t hasVtx = retESD == AliFMDMCEventInspector::kOk;
	406
	407	// Fill the event count histograms
	408	if (isInel) fHEventsTr->Fill(vZMc);
	409	if (isInel && hasVtx) fHEventsTrVtx->Fill(vZMc);
	410	fHEvents->Fill(vZMc);
	411
	412	// Now find our vertex bin object
	413	VtxBin* bin = 0;
	414	if (iVzMc > 0 && iVzMc <= fVtxAxis.GetNbins())
415	bin = static_cast<VtxBin*>(fVtxBins->At(iVzMc));
416	if (!bin) {
417	// AliError(Form("No vertex bin object @ %d (%f)", iVzMc, vZMc));
418	return;
419	}
420
421	// Now process our input data and store in own ESD object
422	fTrackDensity.Calculate(mcEvent, vZMc, bin->fHits, bin->fPrimary);
423	bin->fCounts->Fill(0.5);
bcd522ff	424
bcd522ff	425	PostData(1, fList);
600b313f	426	}
	427
	428	//____________________________________________________________________
	429	void
	430	AliCentralMCCorrectionsTask::Terminate(Option_t*)
	431	{
	432	//
	433	// End of job
	434	//
	435	// Parameters:
	436	// option Not used
	437	//
f53fb4f6	438	DGUARD(fDebug,1,"AliCentralMCCorrectionsTask analyse merged output");
600b313f	439
	440	fList = dynamic_cast<TList*>(GetOutputData(1));
	441	if (!fList) {
	442	AliError("No output list defined");
	443	return;
	444	}
	445
bcd522ff	446	DefineBins(fList);
bcd522ff	447
600b313f	448	// Output list
	449	TList* output = new TList;
	450	output->SetOwner();
	451	output->SetName(Form("%sResults", GetName()));
	452
	453	// --- Fill correction object --------------------------------------
	454	AliCentralCorrSecondaryMap* corr = new AliCentralCorrSecondaryMap;
	455	corr->SetVertexAxis(fVtxAxis);
	456	// corr->SetEtaAxis(fEtaAxis);
	457
	458	TIter next(fVtxBins);
	459	VtxBin* bin = 0;
	460	UShort_t iVz = 1;
	461	while ((bin = static_cast<VtxBin*>(next())))
	462	bin->Finish(fList, output, iVz++, corr);
	463
	464	output->Add(corr);
	465
	466	PostData(2, output);
	467	}
	468
	469	//____________________________________________________________________
	470	void
	471	AliCentralMCCorrectionsTask::Print(Option_t* option) const
	472	{
	473	std::cout << ClassName() << "\n"
	474	<< " Vertex bins: " << fVtxAxis.GetNbins() << '\n'
	475	<< " Vertex range: [" << fVtxAxis.GetXmin()
	476	<< "," << fVtxAxis.GetXmax() << "]\n"
	477	<< " Eta bins: " << fEtaAxis.GetNbins() << '\n'
	478	<< " Eta range: [" << fEtaAxis.GetXmin()
	479	<< "," << fEtaAxis.GetXmax() << "]\n"
	480	<< " # of phi bins: " << fNPhiBins
	481	<< std::endl;
	482	gROOT->IncreaseDirLevel();
	483	fInspector.Print(option);
	484	fTrackDensity.Print(option);
	485	gROOT->DecreaseDirLevel();
	486	}
	487
	488	//====================================================================
	489	const char*
	490	AliCentralMCCorrectionsTask::VtxBin::BinName(Double_t low,
	491	Double_t high)
	492	{
	493	static TString buf;
	494	buf = Form("vtx%+05.1f_%+05.1f", low, high);
	495	buf.ReplaceAll("+", "p");
	496	buf.ReplaceAll("-", "m");
	497	buf.ReplaceAll(".", "d");
	498	return buf.Data();
	499	}
	500
	501
	502	//____________________________________________________________________
	503	AliCentralMCCorrectionsTask::VtxBin::VtxBin()
	504	: fHits(0),
	505	fPrimary(0),
	506	fCounts(0)
	507	{
	508	}
	509	//____________________________________________________________________
	510	AliCentralMCCorrectionsTask::VtxBin::VtxBin(Double_t low,
	511	Double_t high,
512	const TAxis& axis,
513	UShort_t nPhi)
514	: TNamed(BinName(low, high),
515	Form("%+5.1fcm<v_{z}<%+5.1fcm", low, high)),
516	fHits(0),
517	fPrimary(0),
518	fCounts(0)
519	{
520	fPrimary = new TH2D("primary", "Primaries",
521	axis.GetNbins(), axis.GetXmin(), axis.GetXmax(),
522	nPhi, 0, 2*TMath::Pi());
523	fPrimary->SetXTitle("#eta");
524	fPrimary->SetYTitle("#varphi [radians]");
525	fPrimary->Sumw2();
526	fPrimary->SetDirectory(0);
527
528	fHits = static_cast<TH2D*>(fPrimary->Clone("hits"));
529	fHits->SetTitle("Hits");
530	fHits->SetDirectory(0);
531
532	fCounts = new TH1D("counts", "Counts", 1, 0, 1);
533	fCounts->SetXTitle("Events");
534	fCounts->SetYTitle("# of Events");
535	fCounts->SetDirectory(0);
536	}
537
538	//____________________________________________________________________
539	AliCentralMCCorrectionsTask::VtxBin::VtxBin(const VtxBin& o)
540	: TNamed(o),
541	fHits(0),
542	fPrimary(0),
543	fCounts(0)
544	{
545	if (o.fHits) {
546	fHits = static_cast<TH2D*>(o.fHits->Clone());
547	fHits->SetDirectory(0);
548	}
549	if (o.fPrimary) {
550	fPrimary = static_cast<TH2D*>(o.fPrimary->Clone());
551	fPrimary->SetDirectory(0);
552	}
553	if (o.fCounts) {
554	fCounts = static_cast<TH1D*>(o.fCounts->Clone());
555	fCounts->SetDirectory(0);
556	}
557	}
558
559	//____________________________________________________________________
560	AliCentralMCCorrectionsTask::VtxBin&
561	AliCentralMCCorrectionsTask::VtxBin::operator=(const VtxBin& o)
562	{
d015ecfe	563	if (&o == this) return *this;
600b313f	564	TNamed::operator=(o);
	565	fHits = 0;
	566	fPrimary = 0;
	567	fCounts = 0;
	568	if (o.fHits) {
	569	fHits = static_cast<TH2D*>(o.fHits->Clone());
	570	fHits->SetDirectory(0);
	571	}
	572	if (o.fPrimary) {
	573	fPrimary = static_cast<TH2D*>(o.fPrimary->Clone());
	574	fPrimary->SetDirectory(0);
	575	}
	576	if (o.fCounts) {
	577	fCounts = static_cast<TH1D*>(o.fCounts->Clone());
	578	fCounts->SetDirectory(0);
	579	}
	580	return *this;
	581	}
	582
	583	//____________________________________________________________________
	584	void
	585	AliCentralMCCorrectionsTask::VtxBin::DefineOutput(TList* l)
	586	{
	587	TList* d = new TList;
	588	d->SetName(GetName());
	589	d->SetOwner();
	590	l->Add(d);
	591
	592	d->Add(fHits);
	593	d->Add(fPrimary);
	594	d->Add(fCounts);
	595	}
	596	//____________________________________________________________________
	597	void
	598	AliCentralMCCorrectionsTask::VtxBin::Finish(const TList* input,
	599	TList* output,
	600	UShort_t iVz,
	601	AliCentralCorrSecondaryMap* map)
	602	{
	603	TList* out = new TList;
	604	out->SetName(GetName());
	605	out->SetOwner();
	606	output->Add(out);
	607
	608	TList* l = static_cast<TList*>(input->FindObject(GetName()));
	609	if (!l) {
	610	AliError(Form("List %s not found in %s", GetName(), input->GetName()));
	611	return;
	612	}
	613
	614
	615	TH2D* hits = static_cast<TH2D*>(l->FindObject("hits"));
	616	TH2D* prim = static_cast<TH2D*>(l->FindObject("primary"));
	617	if (!hits \|\| !prim) {
	618	AliError(Form("Missing histograms: %p, %p", hits, prim));
	619	return;
	620	}
	621
	622	TH2D* h = static_cast<TH2D*>(hits->Clone("bgCorr"));
	623	h->SetDirectory(0);
984a7263	624	h->Divide(prim);
600b313f	625
	626	map->SetCorrection(iVz, h);
	627
	628	out->Add(h);
	629	}
	630
	631	//
	632	// EOF
	633	//