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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 | **************************************************************************/ | |
52ff852a | 15 | |
16 | /* $Id$ */ | |
99e5fe42 | 17 | |
18 | //--------------------------------------------------------------------- | |
19 | // Jet class | |
20 | // Stores the output of a jet algorithm | |
21 | // Author: jgcn@mda.cinvestav.mx | |
22 | //--------------------------------------------------------------------- | |
23 | ||
24 | #include <Riostream.h> | |
25 | #include <TClonesArray.h> | |
26 | #include <TLorentzVector.h> | |
27 | ||
28 | #include "AliJet.h" | |
29 | ClassImp(AliJet) | |
1b7d5d7e | 30 | |
31 | AliJet::AliJet(): | |
32 | fNInput(0), | |
33 | fNJets(0), | |
34 | fEtAvg(0), | |
35 | fInJet(0), | |
36 | fMultiplicities(0), | |
37 | fNCells(0), | |
38 | fPtFromSignal(0), | |
39 | fJets(0), | |
40 | fEtaIn(0), | |
41 | fPhiIn(0), | |
42 | fPtIn(0) | |
99e5fe42 | 43 | { |
1b7d5d7e | 44 | // Default constructor |
99e5fe42 | 45 | fJets = new TClonesArray("TLorentzVector",1000); |
1b7d5d7e | 46 | fInJet = TArrayI(); |
47 | fPtIn = TArrayF(); | |
48 | fEtaIn = TArrayF(); | |
49 | fPhiIn = TArrayF(); | |
50 | fPtFromSignal = TArrayF(); | |
51 | fMultiplicities = TArrayI(); | |
52 | fNCells = TArrayI(); | |
99e5fe42 | 53 | } |
54 | ||
55 | //////////////////////////////////////////////////////////////////////// | |
56 | ||
57 | AliJet::~AliJet() | |
58 | { | |
59 | // destructor | |
60 | if (fJets) { | |
61 | fJets->Delete(); | |
62 | delete fJets; | |
63 | } | |
64 | } | |
65 | ||
66 | //////////////////////////////////////////////////////////////////////// | |
67 | ||
68 | Bool_t AliJet::OutOfRange(Int_t i, const char *s) const | |
69 | { | |
83a444b1 | 70 | // checks if i is a valid index. s = name of calling method |
99e5fe42 | 71 | if (i >= fNJets || i < 0) { |
72 | cout << s << " Index " << i << " out of range" << endl; | |
73 | return kTRUE; | |
74 | } | |
75 | return kFALSE; | |
76 | } | |
77 | ||
78 | //////////////////////////////////////////////////////////////////////// | |
79 | ||
80 | TLorentzVector* AliJet::GetJet(Int_t i) | |
81 | { | |
82 | // returns i-jet | |
83 | if (OutOfRange(i, "AliJet::GetJet:")) return 0; | |
99e5fe42 | 84 | TLorentzVector *lv = (TLorentzVector*) fJets->At(i); |
85 | return lv; | |
86 | } | |
87 | ||
88 | //////////////////////////////////////////////////////////////////////// | |
89 | ||
83a444b1 | 90 | Int_t AliJet::GetMultiplicity(Int_t i) const |
99e5fe42 | 91 | { |
92 | // gets multiplicity of i-jet | |
93 | if (OutOfRange(i, "AliJet::GetMultiplicity:")) return 0; | |
94 | return fMultiplicities[i]; | |
95 | } | |
96 | ||
97 | //////////////////////////////////////////////////////////////////////// | |
98 | ||
83a444b1 | 99 | Int_t AliJet::GetNCell(Int_t i) const |
100 | { | |
101 | // gets number of cell of i-jet | |
102 | if (OutOfRange(i, "AliJet::GetNCell:")) return 0; | |
103 | return fNCells[i]; | |
104 | } | |
105 | ||
106 | //////////////////////////////////////////////////////////////////////// | |
107 | ||
99e5fe42 | 108 | Double_t AliJet::GetPx(Int_t i) |
109 | { | |
110 | // Get Px component of jet i | |
111 | if (OutOfRange(i, "AliJet::GetPx:")) return -1e30; | |
99e5fe42 | 112 | TLorentzVector *lv = (TLorentzVector*) fJets->At(i); |
113 | return lv->Px(); | |
114 | } | |
115 | ||
116 | //////////////////////////////////////////////////////////////////////// | |
117 | ||
118 | Double_t AliJet::GetPy(Int_t i) | |
119 | { | |
120 | // Get Py component of jet i | |
121 | if (OutOfRange(i, "AliJet::GetPy:")) return -1e30; | |
99e5fe42 | 122 | TLorentzVector *lv = (TLorentzVector*) fJets->At(i); |
123 | return lv->Py(); | |
124 | } | |
125 | ||
126 | //////////////////////////////////////////////////////////////////////// | |
127 | ||
128 | Double_t AliJet::GetPz(Int_t i) | |
129 | { | |
130 | // Get Pz component of jet i | |
131 | if (OutOfRange(i, "AliJet::GetPz:")) return -1e30; | |
99e5fe42 | 132 | TLorentzVector *lv = (TLorentzVector*) fJets->At(i); |
133 | return lv->Pz(); | |
134 | } | |
135 | ||
136 | //////////////////////////////////////////////////////////////////////// | |
137 | ||
138 | Double_t AliJet::GetP(Int_t i) | |
139 | { | |
140 | // Get momentum of jet i | |
141 | if (OutOfRange(i, "AliJet::GetP:")) return -1e30; | |
99e5fe42 | 142 | TLorentzVector *lv = (TLorentzVector*) fJets->At(i); |
143 | return lv->P(); | |
144 | } | |
145 | ||
146 | //////////////////////////////////////////////////////////////////////// | |
147 | ||
148 | Double_t AliJet::GetE(Int_t i) | |
149 | { | |
150 | // Get energy of jet i | |
151 | if (OutOfRange(i, "AliJet::GetE:")) return -1e30; | |
99e5fe42 | 152 | TLorentzVector *lv = (TLorentzVector*) fJets->At(i); |
153 | return lv->E(); | |
154 | } | |
155 | ||
156 | //////////////////////////////////////////////////////////////////////// | |
157 | ||
158 | Double_t AliJet::GetPt(Int_t i) | |
159 | { | |
160 | // Get transverse momentum of jet i | |
161 | if (OutOfRange(i, "AliJet::GetPt:")) return -1e30; | |
99e5fe42 | 162 | TLorentzVector *lv = (TLorentzVector*) fJets->At(i); |
163 | return lv->Pt(); | |
164 | } | |
165 | ||
166 | //////////////////////////////////////////////////////////////////////// | |
167 | ||
168 | Double_t AliJet::GetEta(Int_t i) | |
169 | { | |
170 | // Get eta of jet i | |
171 | if (OutOfRange(i, "AliJet::GetEta:")) return -1e30; | |
99e5fe42 | 172 | TLorentzVector *lv = (TLorentzVector*) fJets->At(i); |
173 | return lv->Eta(); | |
174 | } | |
175 | ||
176 | //////////////////////////////////////////////////////////////////////// | |
177 | ||
178 | Double_t AliJet::GetPhi(Int_t i) | |
179 | { | |
180 | // Get phi of jet i | |
181 | if (OutOfRange(i, "AliJet::GetPhi:")) return -1e30; | |
99e5fe42 | 182 | TLorentzVector *lv = (TLorentzVector*) fJets->At(i); |
183 | return ( (lv->Phi() < 0) ? (lv->Phi()) + 2. * TMath::Pi() : lv->Phi()); | |
184 | } | |
185 | ||
186 | //////////////////////////////////////////////////////////////////////// | |
187 | ||
188 | Double_t AliJet::GetTheta(Int_t i) | |
189 | { | |
190 | // Get theta of jet i | |
191 | if (OutOfRange(i, "AliJet::GetTheta:")) return -1e30; | |
99e5fe42 | 192 | TLorentzVector *lv = (TLorentzVector*) fJets->At(i); |
193 | return lv->Theta(); | |
194 | } | |
195 | ||
196 | //////////////////////////////////////////////////////////////////////// | |
197 | ||
198 | Double_t AliJet::GetMass(Int_t i) | |
199 | { | |
200 | // Get invariant mass of jet i | |
201 | if (OutOfRange(i, "AliJet::GetMass:")) return -1e30; | |
99e5fe42 | 202 | TLorentzVector *lv = (TLorentzVector*) fJets->At(i); |
203 | return lv->M(); | |
204 | } | |
205 | ||
206 | //////////////////////////////////////////////////////////////////////// | |
207 | ||
208 | ||
209 | void AliJet::AddJet(Double_t px, Double_t py, Double_t pz, Double_t e) | |
210 | { | |
211 | // Add new jet to the list | |
212 | new ((*fJets)[fNJets++]) TLorentzVector(px,py,pz,e); | |
213 | } | |
214 | ||
215 | //////////////////////////////////////////////////////////////////////// | |
216 | ||
217 | void AliJet::SetInJet(Int_t* j) | |
218 | { | |
219 | // set information of which input object belongs | |
83a444b1 | 220 | // to each jet. If zero, object was not assigned to |
221 | // a jet, if n,positive, it was assiged to jet n | |
222 | // if n, negative, it is within cone of jet n, but | |
223 | // it did not passed the user cuts. filled in by AliJetFinder | |
99e5fe42 | 224 | if (fNInput>0) fInJet.Set(fNInput, j); |
225 | } | |
226 | ||
227 | //////////////////////////////////////////////////////////////////////// | |
228 | ||
83a444b1 | 229 | void AliJet::SetEtaIn(Float_t* r) |
230 | { | |
231 | if (fNInput>0) fEtaIn.Set(fNInput, r); | |
232 | } | |
233 | ||
234 | //////////////////////////////////////////////////////////////////////// | |
235 | ||
236 | void AliJet::SetPtIn(Float_t* pt) | |
237 | { | |
238 | if (fNInput>0) fPtIn.Set(fNInput, pt); | |
239 | } | |
240 | ||
241 | //////////////////////////////////////////////////////////////////////// | |
242 | ||
243 | void AliJet::SetPhiIn(Float_t* x) | |
244 | { | |
245 | if (fNInput>0) fPhiIn.Set(fNInput, x); | |
246 | } | |
247 | ||
248 | //////////////////////////////////////////////////////////////////////// | |
249 | ||
365b766d | 250 | void AliJet::SetPtFromSignal(Float_t* p) |
251 | { | |
252 | // set information of percentage of pt of jets | |
253 | // coming from signal (ie Pythia) | |
254 | if (fNJets>0) fPtFromSignal.Set(fNJets, p); | |
255 | } | |
256 | ||
257 | //////////////////////////////////////////////////////////////////////// | |
258 | ||
99e5fe42 | 259 | void AliJet::SetMultiplicities(Int_t* m) |
260 | { | |
261 | // set information of jet multiplicities | |
262 | // filled in by AliJetFinder | |
263 | if (fNJets>0) fMultiplicities.Set(fNJets, m); | |
264 | } | |
265 | ||
266 | //////////////////////////////////////////////////////////////////////// | |
267 | ||
83a444b1 | 268 | void AliJet::SetNCells(Int_t* n) |
269 | { | |
270 | if (fNJets>0) fNCells.Set(fNJets, n); | |
271 | } | |
272 | ||
273 | //////////////////////////////////////////////////////////////////////// | |
274 | ||
99e5fe42 | 275 | void AliJet::ClearJets(Option_t *option) |
276 | { | |
277 | // reset all values | |
278 | fJets->Clear(option); | |
279 | fNInput=0; | |
280 | fNJets=0; | |
281 | fMultiplicities.Set(0); | |
282 | fInJet.Set(0); | |
83a444b1 | 283 | fPtFromSignal.Set(0); |
284 | fPhiIn.Set(0); | |
285 | fEtaIn.Set(0); | |
286 | fPtIn.Set(0); | |
287 | fNCells.Set(0); | |
99e5fe42 | 288 | } |
289 | ||
290 | //////////////////////////////////////////////////////////////////////// | |
291 | ||
292 | void AliJet::PrintJets() | |
293 | { | |
294 | // Print jet information | |
295 | if (fNJets == 0) { | |
296 | cout << " AliJet::PrintJets: There are no jets in this event " << endl; | |
297 | return; | |
298 | } | |
299 | cout << " AliJet::PrintJets: There are " << fNJets | |
300 | << " jets in this event" << endl; | |
301 | for(Int_t i=0;i<fNJets;i++) { | |
302 | cout << " Jet " << i << " (px,py,pz,en)=(" << GetPx(i) | |
303 | << "," << GetPy(i) | |
304 | << "," << GetPz(i) | |
305 | << "," << GetE(i) | |
306 | << ")" << endl; | |
307 | cout << " (pt,eta,phi)=(" << GetPt(i) | |
308 | << "," << GetEta(i) | |
309 | << "," << GetPhi(i) << ")" << endl; | |
310 | cout << " # of tracks =" << GetMultiplicity(i) << endl; | |
311 | } | |
312 | } |