#include <TBrowser.h>
#include <TClass.h>
#include <TH2.h>
#include <THnSparse.h>
#include <TString.h>
#include "AliAODTrack.h"
#include "AliESDtrack.h"
#include "AliLog.h"
#include "AliPID.h"
#include "AliPIDResponse.h"
#include "AliHFEcollection.h"
#include "AliHFEpidBase.h"
#include "AliHFEpidQAmanager.h"
#include "AliHFEpidITS.h"
#include "AliHFEtools.h"
#include "AliHFEitsPIDqa.h"
ClassImp(AliHFEitsPIDqa)
AliHFEitsPIDqa::AliHFEitsPIDqa():
AliHFEdetPIDqa()
, fHistos(NULL)
, fBrowseCentrality(-1)
{
}
AliHFEitsPIDqa::AliHFEitsPIDqa(const char* name):
AliHFEdetPIDqa(name, "QA for ITS")
, fHistos(NULL)
, fBrowseCentrality(-1)
{
}
AliHFEitsPIDqa::AliHFEitsPIDqa(const AliHFEitsPIDqa &o):
AliHFEdetPIDqa(o)
, fHistos(NULL)
, fBrowseCentrality(o.fBrowseCentrality)
{
o.Copy(*this);
}
AliHFEitsPIDqa &AliHFEitsPIDqa::operator=(const AliHFEitsPIDqa &o){
AliHFEdetPIDqa::operator=(o);
if(&o != this) o.Copy(*this);
return *this;
}
AliHFEitsPIDqa::~AliHFEitsPIDqa(){
if(fHistos) delete fHistos;
}
void AliHFEitsPIDqa::Copy(TObject &o) const {
AliHFEitsPIDqa &target = dynamic_cast<AliHFEitsPIDqa &>(o);
if(target.fHistos){
delete target.fHistos;
target.fHistos = NULL;
}
if(fHistos) target.fHistos = new AliHFEcollection(*fHistos);
target.fBrowseCentrality = fBrowseCentrality;
}
Long64_t AliHFEitsPIDqa::Merge(TCollection *coll){
if(!coll) return 0;
if(coll->IsEmpty()) return 1;
TIter it(coll);
AliHFEitsPIDqa *refQA = NULL;
TObject *o = NULL;
Long64_t count = 0;
TList listHistos;
while((o = it())){
refQA = dynamic_cast<AliHFEitsPIDqa *>(o);
if(!refQA) continue;
listHistos.Add(refQA->fHistos);
count++;
}
fHistos->Merge(&listHistos);
return count + 1;
}
void AliHFEitsPIDqa::Browse(TBrowser *b){
if(b){
if(fHistos){
b->Add(fHistos, fHistos->GetName());
TString specnames[AliPID::kSPECIES+1] = {"All", "Electrons", "Muon", "Pions", "Kaon", "Protons"};
Int_t specind[AliPID::kSPECIES+1] = {-1, AliPID::kElectron, AliPID::kMuon, AliPID::kPion, AliPID::kKaon, AliPID::kProton};
TList *listNsigma = new TList;
listNsigma->SetOwner();
TH2 *hptr = NULL;
for(Int_t ispec = 0; ispec < AliPID::kSPECIES+1; ispec++){
for(Int_t istep = 0; istep < 2; istep++){
hptr = MakeSpectrumNSigma(static_cast<AliHFEdetPIDqa::EStep_t>(istep), specind[ispec], fBrowseCentrality);
hptr->SetName(Form("hITSnsigma%s%s%s", specnames[ispec].Data(), istep == 0 ? "Before" : "After", fBrowseCentrality == -1 ? "MinBias" : Form("Cent%d", fBrowseCentrality)));
listNsigma->Add(hptr);
}
}
b->Add(listNsigma, "Projections NSigma");
}
}
}
void AliHFEitsPIDqa::Initialize(){
fHistos = new AliHFEcollection("itsqahistos", "Collection of ITS QA histograms");
const Int_t kNdim = 5;
const Int_t kPIDbins = AliPID::kSPECIES + 1;
const Int_t kSteps = 2;
const Int_t kCentralityBins = 11;
const Double_t kMinPID = -1;
const Double_t kMinP = 0.;
const Double_t kMaxPID = (Double_t)AliPID::kSPECIES;
const Double_t kMaxP = 2.;
Int_t kPbins = fQAmanager->HasHighResolutionHistos() ? 100 : 10;
Int_t kSigmaBins = fQAmanager->HasHighResolutionHistos() ? 1400 : 240;
Int_t nBinsSigma[kNdim] = {kPIDbins, kPbins, kSigmaBins, kSteps, kCentralityBins};
Double_t minSigma[kNdim] = {kMinPID, kMinP, -12., 0., 0.};
Double_t maxSigma[kNdim] = {kMaxPID, kMaxP, 12., 2., 11.};
fHistos->CreateTHnSparse("itsnSigma", "ITS signal; species; p [GeV/c]; ITS signal [a.u.]; Selection Step; Centrality; Eta", kNdim, nBinsSigma, minSigma, maxSigma);
}
void AliHFEitsPIDqa::ProcessTrack(const AliHFEpidObject *track, AliHFEdetPIDqa::EStep_t step){
AliDebug(1, Form("QA started for ITS PID for step %d", (Int_t)step));
Float_t centrality = track->GetCentrality();
Int_t species = track->GetAbInitioPID();
if(species >= AliPID::kSPECIES) species = -1;
AliHFEpidITS *itspid = dynamic_cast<AliHFEpidITS *>(fQAmanager->GetDetectorPID(AliHFEpid::kITSpid));
Double_t contentSignal[5];
contentSignal[0] = species;
contentSignal[1] = track->GetRecTrack()->P();
contentSignal[2] = itspid ? itspid->GetITSNsigmaCorrected(track->GetRecTrack()) : -100.;
contentSignal[3] = step;
contentSignal[4] = centrality;
fHistos->Fill("itsnSigma", contentSignal);
}
TH2 *AliHFEitsPIDqa::MakeSpectrumNSigma(AliHFEdetPIDqa::EStep_t istep, Int_t species, Int_t centralityClass){
THnSparseF *hSignal = dynamic_cast<THnSparseF *>(fHistos->Get("itsnSigma"));
if(!hSignal) return NULL;
hSignal->GetAxis(3)->SetRange(istep + 1, istep + 1);
if(species >= 0 && species < AliPID::kSPECIES)
hSignal->GetAxis(0)->SetRange(2 + species, 2 + species);
TString hname = Form("hITSsigma%s", istep == AliHFEdetPIDqa::kBeforePID ? "before" : "after"),
htitle = Form("ITS dE/dx Spectrum[#sigma] %s selection", istep == AliHFEdetPIDqa::kBeforePID ? "before" : "after");
if(species > -1){
hname += AliPID::ParticleName(species);
htitle += Form(" for %ss", AliPID::ParticleName(species));
}
TString centname, centtitle;
Bool_t hasCentralityInfo = kTRUE;
if(centralityClass > -1){
if(hSignal->GetNdimensions() < 5){
AliError("Centrality Information not available");
centname = centtitle = "MinBias";
hasCentralityInfo= kFALSE;
} else {
hSignal->GetAxis(4)->SetRange(centralityClass+1, centralityClass+1);
centname = Form("Cent%d", centralityClass);
centtitle = Form(" Centrality %d", centralityClass);
}
} else {
centname = centtitle = "MinBias";
hasCentralityInfo= kFALSE;
}
hname += centtitle;
htitle += centtitle;
TH2 *hTmp = hSignal->Projection(2,1);
hTmp->SetName(hname.Data());
hTmp->SetTitle(htitle.Data());
hTmp->SetStats(kFALSE);
hTmp->GetXaxis()->SetTitle("p [GeV/c]");
hTmp->GetYaxis()->SetTitle("ITS dE/dx - <dE/dx>|_{el} [#sigma]");
hSignal->GetAxis(3)->SetRange(0, hSignal->GetAxis(3)->GetNbins());
hSignal->GetAxis(0)->SetRange(0, hSignal->GetAxis(0)->GetNbins());
if(hasCentralityInfo) hSignal->GetAxis(4)->SetRange(0, hSignal->GetAxis(4)->GetNbins());
return hTmp;
}