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99e5fe42 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
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 | **************************************************************************/ | |
83a444b1 | 15 | |
99e5fe42 | 16 | //--------------------------------------------------------------------- |
17 | // Jet finder base class | |
18 | // manages the search for jets | |
19 | // Author: jgcn@mda.cinvestav.mx | |
20 | //--------------------------------------------------------------------- | |
21 | ||
22 | #include <Riostream.h> | |
23 | #include <TFile.h> | |
24 | #include "AliGenPythiaEventHeader.h" | |
25 | #include "AliJetFinder.h" | |
26 | #include "AliJet.h" | |
27 | #include "AliJetReader.h" | |
28 | #include "AliJetReaderHeader.h" | |
29 | #include "AliJetControlPlots.h" | |
30 | #include "AliLeading.h" | |
31 | #include "AliHeader.h" | |
32 | ||
99e5fe42 | 33 | ClassImp(AliJetFinder) |
34 | ||
99e5fe42 | 35 | |
1b7d5d7e | 36 | AliJetFinder::AliJetFinder(): |
37 | fPlotMode(kFALSE), | |
38 | fJets(0), | |
39 | fGenJets(0), | |
40 | fLeading(0), | |
41 | fReader(0x0), | |
42 | fPlots(0x0), | |
43 | fOut(0x0) | |
44 | ||
99e5fe42 | 45 | { |
99e5fe42 | 46 | // Constructor |
1b7d5d7e | 47 | //fOut = 0x0; |
655dbb2b | 48 | fJets = new AliJet(); |
99e5fe42 | 49 | fGenJets = new AliJet(); |
50 | fLeading = new AliLeading(); | |
1b7d5d7e | 51 | //fReader = 0x0; |
52 | //fPlots = 0x0; | |
53 | //SetPlotMode(kFALSE); | |
99e5fe42 | 54 | } |
55 | ||
99e5fe42 | 56 | //////////////////////////////////////////////////////////////////////// |
57 | ||
58 | AliJetFinder::~AliJetFinder() | |
59 | { | |
99e5fe42 | 60 | // destructor |
99e5fe42 | 61 | // here reset and delete jets |
62 | fJets->ClearJets(); | |
63 | delete fJets; | |
64 | fGenJets->ClearJets(); | |
65 | delete fGenJets; | |
66 | // close file | |
67 | if (fOut) { | |
68 | fOut->Close(); | |
69 | fOut->Delete(); | |
70 | } | |
71 | delete fOut; | |
72 | // reset and delete control plots | |
73 | if (fPlots) delete fPlots; | |
99e5fe42 | 74 | } |
75 | ||
99e5fe42 | 76 | //////////////////////////////////////////////////////////////////////// |
77 | ||
78 | void AliJetFinder::SetOutputFile(const char *name) | |
79 | { | |
80 | // opens output file | |
81 | fOut = new TFile(name,"recreate"); | |
82 | } | |
83 | ||
99e5fe42 | 84 | //////////////////////////////////////////////////////////////////////// |
85 | ||
86 | void AliJetFinder::PrintJets() | |
87 | { | |
83a444b1 | 88 | // Print jet information |
99e5fe42 | 89 | cout << " Jets found with jet algorithm:" << endl; |
90 | fJets->PrintJets(); | |
91 | cout << " Jets found by pythia:" << endl; | |
92 | fGenJets->PrintJets(); | |
93 | } | |
94 | ||
99e5fe42 | 95 | //////////////////////////////////////////////////////////////////////// |
96 | ||
97 | void AliJetFinder::SetPlotMode(Bool_t b) | |
98 | { | |
83a444b1 | 99 | // Sets the plotting mode |
99e5fe42 | 100 | fPlotMode=b; |
101 | if (b && !fPlots) fPlots = new AliJetControlPlots(); | |
102 | } | |
103 | ||
104 | //////////////////////////////////////////////////////////////////////// | |
105 | ||
106 | void AliJetFinder::WriteJetsToFile(Int_t i) | |
107 | { | |
83a444b1 | 108 | // Writes the jets to file |
99e5fe42 | 109 | fOut->cd(); |
110 | char hname[30]; | |
111 | sprintf(hname,"TreeJ%d",i); | |
112 | TTree* jetT = new TTree(hname,"AliJet"); | |
113 | jetT->Branch("FoundJet",&fJets,1000); | |
114 | jetT->Branch("GenJet",&fGenJets,1000); | |
115 | jetT->Branch("LeadingPart",&fLeading,1000); | |
116 | jetT->Fill(); | |
117 | jetT->Write(hname); | |
118 | delete jetT; | |
119 | } | |
120 | ||
121 | //////////////////////////////////////////////////////////////////////// | |
122 | ||
123 | void AliJetFinder::WriteRHeaderToFile() | |
124 | { | |
125 | // write reader header | |
126 | fOut->cd(); | |
127 | AliJetReaderHeader *rh = fReader->GetReaderHeader(); | |
128 | rh->Write(); | |
129 | } | |
130 | ||
99e5fe42 | 131 | //////////////////////////////////////////////////////////////////////// |
132 | ||
133 | void AliJetFinder::GetGenJets() | |
134 | { | |
83a444b1 | 135 | // Get the generated jet information from mc header |
99e5fe42 | 136 | AliHeader* alih = fReader->GetAliHeader(); |
137 | if (alih == 0) return; | |
138 | AliGenEventHeader * genh = alih->GenEventHeader(); | |
139 | if (genh == 0) return; | |
140 | Int_t nj =((AliGenPythiaEventHeader*)genh)->NTriggerJets(); | |
141 | Int_t* m = new Int_t[nj]; | |
142 | Int_t* k = new Int_t[nj]; | |
143 | for (Int_t i=0; i< nj; i++) { | |
144 | Float_t p[4]; | |
145 | ((AliGenPythiaEventHeader*)genh)->TriggerJet(i,p); | |
146 | fGenJets->AddJet(p[0],p[1],p[2],p[3]); | |
147 | m[i]=1; | |
148 | k[i]=i; | |
149 | } | |
655dbb2b | 150 | fGenJets->SetNinput(nj); |
99e5fe42 | 151 | fGenJets->SetMultiplicities(m); |
152 | fGenJets->SetInJet(k); | |
153 | } | |
154 | ||
155 | //////////////////////////////////////////////////////////////////////// | |
156 | ||
157 | void AliJetFinder::Run() | |
158 | { | |
159 | // do some initialization | |
160 | Init(); | |
161 | ||
162 | // connect files | |
163 | fReader->OpenInputFiles(); | |
164 | ||
165 | // write headers | |
166 | if (fOut) { | |
167 | fOut->cd(); | |
168 | WriteRHeaderToFile(); | |
169 | WriteJHeaderToFile(); | |
170 | } | |
99e5fe42 | 171 | // loop over events |
172 | Int_t nFirst,nLast; | |
173 | nFirst = fReader->GetReaderHeader()->GetFirstEvent(); | |
174 | nLast = fReader->GetReaderHeader()->GetLastEvent(); | |
175 | // loop over events | |
176 | for (Int_t i=nFirst;i<nLast;i++) { | |
177 | fReader->FillMomentumArray(i); | |
178 | fLeading->FindLeading(fReader); | |
179 | GetGenJets(); | |
180 | FindJets(); | |
181 | if (fOut) WriteJetsToFile(i); | |
83a444b1 | 182 | if (fPlots) fPlots->FillHistos(fJets); |
99e5fe42 | 183 | fLeading->Reset(); |
184 | fGenJets->ClearJets(); | |
185 | Reset(); | |
186 | } | |
187 | // write out | |
188 | if (fPlots) { | |
189 | fPlots->Normalize(); | |
190 | fPlots->PlotHistos(); | |
191 | } | |
192 | if (fOut) { | |
193 | fOut->cd(); | |
194 | fPlots->Write(); | |
195 | fOut->Close(); | |
196 | } | |
197 | } |