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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 | **************************************************************************/ | |
15 | ||
16 | ||
17 | //--------------------------------------------------------------------- | |
18 | // Jet finder base class | |
19 | // manages the search for jets | |
20 | // Author: jgcn@mda.cinvestav.mx | |
21 | //--------------------------------------------------------------------- | |
22 | ||
23 | #include <Riostream.h> | |
24 | #include <TFile.h> | |
25 | #include "AliGenPythiaEventHeader.h" | |
26 | #include "AliJetFinder.h" | |
27 | #include "AliJet.h" | |
28 | #include "AliJetReader.h" | |
29 | #include "AliJetReaderHeader.h" | |
30 | #include "AliJetControlPlots.h" | |
31 | #include "AliLeading.h" | |
32 | #include "AliHeader.h" | |
33 | ||
34 | ||
35 | ClassImp(AliJetFinder) | |
36 | ||
37 | //////////////////////////////////////////////////////////////////////// | |
38 | ||
39 | AliJetFinder::AliJetFinder() | |
40 | { | |
41 | // | |
42 | // Constructor | |
43 | // | |
655dbb2b | 44 | fOut = 0x0; |
45 | fJets = new AliJet(); | |
99e5fe42 | 46 | fGenJets = new AliJet(); |
47 | fLeading = new AliLeading(); | |
655dbb2b | 48 | fReader = 0x0; |
49 | fPlots = 0x0; | |
99e5fe42 | 50 | SetPlotMode(kFALSE); |
51 | } | |
52 | ||
53 | ||
54 | //////////////////////////////////////////////////////////////////////// | |
55 | ||
56 | AliJetFinder::~AliJetFinder() | |
57 | { | |
58 | // | |
59 | // destructor | |
60 | // | |
61 | ||
62 | // here reset and delete jets | |
63 | fJets->ClearJets(); | |
64 | delete fJets; | |
65 | fGenJets->ClearJets(); | |
66 | delete fGenJets; | |
67 | // close file | |
68 | if (fOut) { | |
69 | fOut->Close(); | |
70 | fOut->Delete(); | |
71 | } | |
72 | delete fOut; | |
73 | // reset and delete control plots | |
74 | if (fPlots) delete fPlots; | |
ae8bbe84 | 75 | // delete fLeading; |
99e5fe42 | 76 | } |
77 | ||
78 | ||
79 | //////////////////////////////////////////////////////////////////////// | |
80 | ||
81 | void AliJetFinder::SetOutputFile(const char *name) | |
82 | { | |
83 | // opens output file | |
84 | fOut = new TFile(name,"recreate"); | |
85 | } | |
86 | ||
87 | ||
88 | //////////////////////////////////////////////////////////////////////// | |
89 | ||
90 | void AliJetFinder::PrintJets() | |
91 | { | |
92 | // | |
93 | // Print jet information | |
94 | cout << " Jets found with jet algorithm:" << endl; | |
95 | fJets->PrintJets(); | |
96 | cout << " Jets found by pythia:" << endl; | |
97 | fGenJets->PrintJets(); | |
98 | } | |
99 | ||
100 | ||
101 | //////////////////////////////////////////////////////////////////////// | |
102 | ||
103 | void AliJetFinder::SetPlotMode(Bool_t b) | |
104 | { | |
105 | // Sets the plotting mode | |
106 | fPlotMode=b; | |
107 | if (b && !fPlots) fPlots = new AliJetControlPlots(); | |
108 | } | |
109 | ||
110 | //////////////////////////////////////////////////////////////////////// | |
111 | ||
112 | void AliJetFinder::WriteJetsToFile(Int_t i) | |
113 | { | |
114 | // Writes the jets to file | |
115 | fOut->cd(); | |
116 | char hname[30]; | |
117 | sprintf(hname,"TreeJ%d",i); | |
118 | TTree* jetT = new TTree(hname,"AliJet"); | |
119 | jetT->Branch("FoundJet",&fJets,1000); | |
120 | jetT->Branch("GenJet",&fGenJets,1000); | |
121 | jetT->Branch("LeadingPart",&fLeading,1000); | |
122 | jetT->Fill(); | |
123 | jetT->Write(hname); | |
124 | delete jetT; | |
125 | } | |
126 | ||
127 | //////////////////////////////////////////////////////////////////////// | |
128 | ||
129 | void AliJetFinder::WriteRHeaderToFile() | |
130 | { | |
131 | // write reader header | |
132 | fOut->cd(); | |
133 | AliJetReaderHeader *rh = fReader->GetReaderHeader(); | |
134 | rh->Write(); | |
135 | } | |
136 | ||
137 | ||
138 | //////////////////////////////////////////////////////////////////////// | |
139 | ||
140 | void AliJetFinder::GetGenJets() | |
141 | { | |
142 | // Get the generated jet information from mc header | |
99e5fe42 | 143 | AliHeader* alih = fReader->GetAliHeader(); |
144 | if (alih == 0) return; | |
145 | AliGenEventHeader * genh = alih->GenEventHeader(); | |
146 | if (genh == 0) return; | |
147 | Int_t nj =((AliGenPythiaEventHeader*)genh)->NTriggerJets(); | |
148 | Int_t* m = new Int_t[nj]; | |
149 | Int_t* k = new Int_t[nj]; | |
150 | for (Int_t i=0; i< nj; i++) { | |
151 | Float_t p[4]; | |
152 | ((AliGenPythiaEventHeader*)genh)->TriggerJet(i,p); | |
153 | fGenJets->AddJet(p[0],p[1],p[2],p[3]); | |
154 | m[i]=1; | |
155 | k[i]=i; | |
156 | } | |
655dbb2b | 157 | fGenJets->SetNinput(nj); |
99e5fe42 | 158 | fGenJets->SetMultiplicities(m); |
159 | fGenJets->SetInJet(k); | |
160 | } | |
161 | ||
162 | //////////////////////////////////////////////////////////////////////// | |
163 | ||
164 | void AliJetFinder::Run() | |
165 | { | |
166 | // do some initialization | |
167 | Init(); | |
168 | ||
169 | // connect files | |
170 | fReader->OpenInputFiles(); | |
171 | ||
172 | // write headers | |
173 | if (fOut) { | |
174 | fOut->cd(); | |
175 | WriteRHeaderToFile(); | |
176 | WriteJHeaderToFile(); | |
177 | } | |
178 | ||
179 | // loop over events | |
180 | Int_t nFirst,nLast; | |
181 | nFirst = fReader->GetReaderHeader()->GetFirstEvent(); | |
182 | nLast = fReader->GetReaderHeader()->GetLastEvent(); | |
183 | // loop over events | |
184 | for (Int_t i=nFirst;i<nLast;i++) { | |
185 | fReader->FillMomentumArray(i); | |
186 | fLeading->FindLeading(fReader); | |
187 | GetGenJets(); | |
188 | FindJets(); | |
189 | if (fOut) WriteJetsToFile(i); | |
190 | if (fPlots) fPlots->FillHistos(fJets,fReader); | |
191 | fLeading->Reset(); | |
192 | fGenJets->ClearJets(); | |
193 | Reset(); | |
194 | } | |
195 | // write out | |
196 | if (fPlots) { | |
197 | fPlots->Normalize(); | |
198 | fPlots->PlotHistos(); | |
199 | } | |
200 | if (fOut) { | |
201 | fOut->cd(); | |
202 | fPlots->Write(); | |
203 | fOut->Close(); | |
204 | } | |
205 | } | |
206 |