1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
18 //---------------------------------------------------------------------
19 // Jet finder base class
20 // manages the search for jets
21 // Authors: jgcn@mda.cinvestav.mx
22 // andreas.morsch@cern.ch
23 //---------------------------------------------------------------------
25 #include <Riostream.h>
27 #include "AliJetFinder.h"
29 #include "AliJetReader.h"
30 #include "AliJetReaderHeader.h"
31 #include "AliJetControlPlots.h"
32 #include "AliLeading.h"
34 ClassImp(AliJetFinder)
36 AliJetFinder::AliJetFinder():
50 fGenJets = new AliJet();
51 fLeading = new AliLeading();
54 ////////////////////////////////////////////////////////////////////////
56 AliJetFinder::~AliJetFinder()
59 // here reset and delete jets
62 fGenJets->ClearJets();
70 // reset and delete control plots
71 if (fPlots) delete fPlots;
74 ////////////////////////////////////////////////////////////////////////
76 void AliJetFinder::SetOutputFile(const char */*name*/)
79 // fOut = new TFile(name,"recreate");
82 ////////////////////////////////////////////////////////////////////////
84 void AliJetFinder::PrintJets()
86 // Print jet information
87 cout << " Jets found with jet algorithm:" << endl;
89 cout << " Jets found by pythia:" << endl;
90 fGenJets->PrintJets();
93 ////////////////////////////////////////////////////////////////////////
95 void AliJetFinder::SetPlotMode(Bool_t b)
97 // Sets the plotting mode
99 if (b && !fPlots) fPlots = new AliJetControlPlots();
102 ////////////////////////////////////////////////////////////////////////
103 TTree* AliJetFinder::MakeTreeJ(char* name)
105 // Create the tree for reconstructed jets
106 fTreeJ = new TTree(name, "AliJet");
107 fTreeJ->Branch("FoundJet", &fJets, 1000);
108 fTreeJ->Branch("GenJet", &fGenJets,1000);
109 fTreeJ->Branch("LeadingPart",&fLeading,1000);
113 ////////////////////////////////////////////////////////////////////////
115 void AliJetFinder::WriteRHeaderToFile()
117 // write reader header
118 AliJetReaderHeader *rh = fReader->GetReaderHeader();
122 ////////////////////////////////////////////////////////////////////////
125 void AliJetFinder::Run()
127 // Do some initialization
130 fReader->OpenInputFiles();
135 Int_t nFirst, nLast, option, debug, arrayInitialised;
136 nFirst = fReader->GetReaderHeader()->GetFirstEvent();
137 nLast = fReader->GetReaderHeader()->GetLastEvent();
139 option = fReader->GetReaderHeader()->GetDetector();
140 debug = fReader->GetReaderHeader()->GetDebug();
141 arrayInitialised = fReader->GetArrayInitialised();
144 for (Int_t i=nFirst;i<nLast;i++) {
145 fReader->FillMomentumArray(i);
146 fLeading->FindLeading(fReader);
147 fReader->GetGenJets(fGenJets);
149 if (option == 0) { // TPC with fMomentumArray
151 printf("In FindJetsTPC() routine: find jets with fMomentumArray !!!\n");
154 if(debug > 1) printf("In FindJets() routine: find jets with fUnitArray !!!\n");
162 if (fPlots) fPlots->FillHistos(fJets);
164 fGenJets->ClearJets();
171 fPlots->PlotHistos();
182 // The following methods have been added to allow for event steering from the outside
185 void AliJetFinder::ConnectTree(TTree* tree, TObject* data)
187 // Connect the input file
188 fReader->ConnectTree(tree, data);
191 void AliJetFinder::WriteHeaders()
194 TFile* f = new TFile("jets_local.root", "recreate");
195 WriteRHeaderToFile();
196 WriteJHeaderToFile();
201 Bool_t AliJetFinder::ProcessEvent(Long64_t entry)
206 Int_t debug = fReader->GetReaderHeader()->GetDebug();
207 if (debug > 0) printf("<<<<< Processing Event %5d >>>>> \n", (Int_t) entry);
209 Bool_t ok = fReader->FillMomentumArray(entry);
210 if (!ok) return kFALSE;
213 fLeading->FindLeading(fReader);
219 if (fPlots) fPlots->FillHistos(fJets);
221 fGenJets->ClearJets();
226 void AliJetFinder::FinishRun()
231 fPlots->PlotHistos();