+/**************************************************************************
+ * 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. *
+ **************************************************************************/
+
+//_________________________________________________________________________
+// This is a TTask that constructs ReconstParticles (reconstructed particles)
+// out of Digits
+//
+//-- Authors: Evgeny Karpechev(INR) and Alla Maevsksia
+//////////////////////////////////////////////////////////////////////////////
+
// --- ROOT system ---
#include "TTask.h"
#include "TTree.h"
#include "TSystem.h"
#include "TFile.h"
+#include "TROOT.h"
+#include "TFolder.h"
+#include "TH2F.h"
+
// --- Standard library ---
+#include <stdlib.h>
+#include <Riostream.h>
// --- AliRoot header files ---
+#include "AliRunLoader.h"
+#include "AliLoader.h"
+
#include "AliFMDdigit.h"
+#include "AliFMDhit.h"
#include "AliFMDReconstParticles.h"
#include "AliFMD.h"
#include "AliFMDv1.h"
#include "AliFMDReconstruction.h"
#include "AliRun.h"
-#include "AliDetector.h"
-
-#include "TROOT.h"
-#include "TFolder.h"
-#include <stdlib.h>
-#include <iostream.h>
-#include <fstream.h>
+#include "AliConfig.h"
+#include "AliHeader.h"
+#include "AliGenEventHeader.h"
ClassImp(AliFMDReconstruction)
AliFMDReconstruction::AliFMDReconstruction():TTask("AliFMDReconstruction","")
{
fNevents = 0 ; // Number of events to rreconnstraction, 0 means all events in current file
- // add Task to //root/Tasks folder
- TTask * roottasks = (TTask*)gROOT->GetRootFolder()->FindObject("Tasks") ;
- roottasks->Add(this) ;
+ fRunLoader = 0x0;
+
}
//____________________________________________________________________________
-AliFMDReconstruction::AliFMDReconstruction(char* HeaderFile, char *ReconstParticlesFile):TTask("AliFMDReconstruction","")
+AliFMDReconstruction::AliFMDReconstruction(AliRunLoader* rl):TTask("AliFMDReconstruction","")
{
+
+ if (rl == 0x0)
+ {
+ Fatal("AliFMDReconstruction","Argument AliRunLoader* is null!");
+ return;
+ }
+
fNevents = 0 ; // Number of events to rreconnstraction, 0 means all events in current file
- fReconstParticlesFile=ReconstParticlesFile ;
- fHeadersFile=HeaderFile ;
+
+ fRunLoader = rl;
+ AliLoader* plFMD = fRunLoader->GetLoader("FMDLoader");
+ if (plFMD == 0x0)
+ {
+ Fatal("AliFMDReconstruction","Can not find FMD (loader) in specified event");
+ return;//never reached
+ }
//add Task to //root/Tasks folder
- TTask * roottasks = (TTask*)gROOT->GetRootFolder()->FindObject("Tasks") ;
- roottasks->Add(this) ;
+// gime->PostReconstructioner(this);
}
//____________________________________________________________________________
AliFMDReconstruction::~AliFMDReconstruction()
{
-
+ AliLoader* plFMD = fRunLoader->GetLoader("FMDLoader");
+ plFMD->CleanReconstructioner();
}
//____________________________________________________________________________
-void AliFMDReconstruction::Exec(TClonesArray *fReconParticles,Option_t *option)
+void AliFMDReconstruction::Exec()
{
//Collects all digits in the same active volume into number of particles
+ /*
+ Reconstruct number of particles
+ in given group of pads for given FMDvolume
+ determine by numberOfVolume ,
+ numberOfMinSector,numberOfMaxSector,
+ numberOfMinRing, numberOgMaxRing
+ Reconstruction method choose dependence on number of empty pads
+ */
+
- AliFMD * FMD = (AliFMD *) gAlice->GetDetector("FMD");
- if(fNevents == 0) fNevents=(Int_t)gAlice->TreeD()->GetEntries();
- for(Int_t ievent=0;ievent<fNevents;ievent++)
+#ifdef DEBUG
+ Info("Exec ","Start");
+#endif
+
+ Int_t const knumVolumes=5;
+ Int_t padADC;
+ Float_t eta, etain,etaout,rad,theta;
+ Int_t ivol, iSector, iRing;
+ Float_t rin[5]={4.2,15.4,4.2,15.4,4.2};
+ Float_t rout[5]={17.4,28.4,17.4,28.4,17.4};
+ Float_t z[5]={-62.8, -75.2, 83.4, 75.2, 340.};
+ Int_t numberOfRings[5]={512,256,512,256,512};
+ Int_t numberOfSectors[5]= {20,40,20,40,20};
+ Int_t numberOfEtaIntervals[5];
+ // number of ring for boundary 0.1 eta
+
+
+ if (fRunLoader == 0x0)
+ {
+ Error("Exec","Run Loader loader is NULL - Session not opened");
+ return;
+ }
+
+ AliLoader* plFMD = fRunLoader->GetLoader("FMDLoader");
+ if (plFMD == 0x0)
+ {
+ Fatal("AliFMDReconstruction","Can not find FMD (loader) in specified event");
+ return;//never reached
+ }
+
+ if (!fRunLoader->GetAliRun()) fRunLoader->LoadgAlice();
+ if (!fRunLoader->TreeE()) fRunLoader->LoadHeader();
+
+ TDirectory* cwd = gDirectory;
+ gDirectory = 0x0;
+ Text_t buf1[20];
+ TH2F* hTotal[10];
+ for (Int_t j=1; j<=5; j++){
+ sprintf(buf1,"hTotal%d",j);
+
+ hTotal[j] = new TH2F(buf1," Number of primary particles ",
+ numberOfSectors[j-1],1,numberOfSectors[j-1],
+ numberOfRings[j-1],1,numberOfRings[j-1]);
+ }
+ gDirectory = cwd;
+
+ Int_t retval=0;
+ if(fNevents == 0) fNevents=Int_t (fRunLoader->TreeE()->GetEntries());
+#ifdef DEBUG
+ cout<<" fNevents "<<fNevents<<endl;
+#endif
+ for(Int_t ievent=0;ievent<fNevents;ievent++)
{
- gAlice->GetEvent(ievent) ;
- if(gAlice->TreeH()==0) return;
- if(gAlice->TreeR()==0) gAlice->MakeTree("R");
+#ifdef DEBUG
+ cout<<" *** event "<<ievent<<endl;
+#endif
+ fRunLoader->GetEvent(ievent) ;
+ //event z-vertex for correction eta-rad dependence
+ AliHeader *header = fRunLoader->GetHeader();
+ AliGenEventHeader* genHeader = header->GenEventHeader();
+ TArrayF *o = new TArrayF(3);
+ genHeader->PrimaryVertex(*o);
+ Float_t zVertex=o->At(2);
+
+ for (Int_t i=0; i<5; i++)
+ hTotal[i+1]->Reset();
+
+ retval = plFMD->LoadDigits("READ");
+ if (retval)
+ {
+ Error("Exec","Error occured while loading digits. Exiting.");
+ return;
+ }
+
+ AliFMD * fFMD = (AliFMD *)gAlice->GetDetector("FMD");
+ TClonesArray *fReconParticles=fFMD->ReconParticles();
+ TClonesArray *fDigits=fFMD->Digits();
+
+ TTree* treeD = plFMD->TreeD();
+ if (treeD == 0x0)
+ {
+ Error("Exec","Can not get Tree with Digits. Nothing to reconstruct - Exiting");
+ return;
+ }
+
+ TBranch *brDigits=0;
+
+ brDigits=treeD->GetBranch("FMD");
+
+ if (brDigits) {
+ brDigits->SetAddress(&fDigits);
+ }else{
+ cerr<<"EXEC Branch FMD digits not found"<<endl;
+ return;
+ }
+
+ if(plFMD->TreeR()==0) plFMD->MakeTree("R");
+
//Make branches
- FMD->MakeBranch("R");
- Int_t threshold[]={ 0, 18, 37, 56, 76,
- 96, 119, 138, 165, 172,
- 218, 231, 238, 277, 304,
- 330, 357, 423, 449, 476,
- 522, 542, 555, 568, 581,
- 614, 624, 657, 674, 687,
- 700, 713, 720, 727, 733,
- 740, 759, 778, 797, 816,
- 834, 853, 872, 891, 910,
- 929, 948, 967, 986, 1024};
-
+ fFMD->MakeBranch("R");
+
- int threshold_array_size=sizeof(threshold)/sizeof(threshold[0]);
+ Int_t zeroADC=6;
+ // read Digits
AliFMDdigit *fmdDigit;
-
- if (FMD)
+ if (fFMD)
{
- gAlice->TreeD()->GetEvent(0);
- TClonesArray *FMDdigits=FMD->Digits();
- Int_t nDigits=FMDdigits->GetEntries();
- Int_t RecParticles[4];
- Int_t nRecPart=0 ;
- for (Int_t digit=0;digit<nDigits;digit++)
- {
- fmdDigit=(AliFMDdigit*)FMDdigits->UncheckedAt(digit);
- RecParticles[0] = fmdDigit->Volume();
- RecParticles[1] = fmdDigit->NumberOfSector();
- RecParticles[2] = fmdDigit->NumberOfRing();
- Int_t ADC=fmdDigit->ADCsignal();
- RecParticles[3]=0; //case when fmdDigit->ADCsignal()==0
- for (int i=0;i<threshold_array_size-1;i++)
- {
- if(ADC>threshold[i]&&ADC<=threshold[i+1])
- RecParticles[3]=i;
- }
- new((*fReconParticles)[nRecPart++]) AliFMDReconstParticles(RecParticles);
- } //digit loop
- }//if FMD
- gAlice->TreeR()->Reset();
- gAlice->TreeR()->Fill();
- gAlice->TreeR()->Write(0,TObject::kOverwrite);
- } //event loop
- cout<<"\nAliFMDReconstruction::Exec(TClonesArray *fReconParticles,Option_t *option) finished"<<endl;
-}
-//__________________________________________________________________
+ plFMD->TreeD()->GetEvent(0);
+
+ Int_t nDigits=fDigits->GetEntries();
+ Int_t recParticles[6];
+ Int_t nRecPart=0 ;
+ Int_t zeroPads=0;
+ Int_t numberOfPads=0;
+ Int_t pedestal;
+ Float_t channelWidth=(22400*50)/1024;
+ for (Int_t digit=0;digit<nDigits;digit++)
+ {
+ fmdDigit=(AliFMDdigit*)fDigits->UncheckedAt(digit);
+ ivol=fmdDigit->Volume();
+ iSector=fmdDigit->NumberOfSector();
+ iRing=fmdDigit->NumberOfRing();
+ pedestal=Int_t(gRandom->Gaus(500,250));
+ padADC= fmdDigit->ADCsignal()
+ -Int_t(Float_t(pedestal)/channelWidth);
+ if (padADC<0) padADC=0;
+ hTotal[ivol]->Fill(iSector,iRing,padADC);
+ } //digit loop
-void AliFMDReconstruction::SetReconstParticlesFile(char * file )
-{
- if (!fReconstParticlesFile.IsNull())
- cout<<"\nChanging reconstructed particles file from "<<
- (char *) fReconstParticlesFile.Data()<< " to "<<file<<endl;
- fReconstParticlesFile=file;
-}
-//__________________________________________________________________
-void AliFMDReconstruction::Print(Option_t* option)const
-{
- cout<<"------------------- "<<GetName() <<" -------------"<< endl ;
- if(fReconstParticlesFile.IsNull())
- cout<<"\nWriting reconstructed particles to file"<<endl ;
- else
- cout<<"\nWriting reconstructed particles to file "<<
- (char*) fReconstParticlesFile.Data() << endl ;
-}
+ //reconstruct multiplicity in 0.1 eta according Poisson distribution
+ Int_t rmin=0; Int_t rmax=0;
+ Int_t smin=0; Int_t smax=0;
+ for (ivol=0; ivol<knumVolumes; ivol++)
+ {
+ Float_t ring2number=Float_t (numberOfRings[ivol])/
+ (rout[ivol]-rin[ivol]);
+ Float_t realZ=zVertex+z[ivol];
+ theta=TMath::ATan(rout[ivol]/TMath::Abs(realZ));
+ etain = - TMath::Log( TMath::Tan(theta/2.));
+ theta=TMath::ATan(rin[ivol]/TMath::Abs(realZ));
+ etaout=- TMath::Log( TMath::Tan(theta/2.));
+ numberOfEtaIntervals[ivol]=Int_t((etaout-etain)*10)-1;
+ eta=etain;
+ for (Int_t e1=0;e1<=numberOfEtaIntervals[ivol];e1++)
+ {
+ theta = 2.*TMath::ATan (TMath::Exp (-eta));
+ Float_t radmin = TMath::Abs(realZ) * (TMath::Tan (theta));
+ rmax= Int_t ( (radmin-rin[ivol])*ring2number+0.5);
+ eta=eta+0.1;
+ theta = 2.*TMath::ATan (TMath::Exp (-eta));
+ rad = TMath::Abs(realZ) * (TMath::Tan (theta));
+ rmin=Int_t( (rad-rin[ivol])*ring2number+0.5);
+
+ zeroPads=0;
+ smin=0;
+ smax=numberOfSectors[ivol];
+ numberOfPads=(rmax-rmin)*(smax-smin);
+ for (Int_t iring=rmin; iring<rmax; iring++)
+ {
+ for
+ (Int_t isector=0;
+ isector<numberOfSectors[ivol];
+ isector++)
+ {
+ if(hTotal[ivol+1]->GetBinContent(isector+1,iring+1)
+ <zeroADC) zeroPads++;}
+
+ } //ring
+ Float_t numberOfPads=Float_t(smax-smin)*Float_t(rmax-rmin);
+ Double_t lambda=-TMath::Log(Double_t(zeroPads)/numberOfPads);
+ Int_t fRecon=Int_t (lambda*numberOfPads+0.5);
+ recParticles[0]=ivol+1;
+ recParticles[1]=smin;
+ recParticles[2]=smax;
+ recParticles[3]=rmin;
+ recParticles[4]=rmax;
+ recParticles[5]= fRecon;
+ new((*fReconParticles)[nRecPart++]) AliFMDReconstParticles(recParticles);
+
+ } // eta
+ } // volume
+
+ }//if FMD
+ plFMD->TreeR()->Reset();
+ plFMD->TreeR()->Fill();
+ plFMD->WriteRecPoints("OVERWRITE");
+ plFMD->UnloadDigits();
+ } //event loop
+#ifdef DEBUG
+ Info(" Exec"," finished");
+#endif
+ // delete hTotal[10];
+}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff