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85c60a8e | 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 | /* $Id$ */ | |
17 | /* $Log $ */ | |
18 | ||
19 | //----------------------------------------------------------------- | |
20 | // Implementation of the ESD Calorimeter cluster class | |
21 | // ESD = Event Summary Data | |
22 | // This is the class to deal with during the phisics analysis of data | |
23 | // | |
24 | // J.L. Klay (LLNL) | |
25 | //----------------------------------------------------------------- | |
26 | ||
bab0b5f0 | 27 | #include <TLorentzVector.h> |
85c60a8e | 28 | #include "AliESDCaloCluster.h" |
29 | ||
30 | ClassImp(AliESDCaloCluster) | |
31 | ||
32 | //_______________________________________________________________________ | |
33 | AliESDCaloCluster::AliESDCaloCluster() : | |
8ada0ffe | 34 | TObject(), |
5efdec54 | 35 | fTracksMatched(0x0), |
36 | fLabels(0x0), | |
e649177a | 37 | fNCells(0), |
38 | fCellsAbsId(0x0), | |
39 | fCellsAmpFraction(0x0), | |
40 | fDigitAmplitude(0x0),//not in use | |
41 | fDigitTime(0x0),//not in use | |
42 | fDigitIndex(0x0),//not in use | |
8ada0ffe | 43 | fEnergy(0), |
44 | fDispersion(0), | |
45 | fChi2(0), | |
46 | fM20(0), | |
47 | fM02(0), | |
48 | fM11(0), | |
49 | fEmcCpvDistance(1024), | |
50 | fDistToBadChannel(1024), | |
51 | fID(0), | |
52 | fNExMax(0), | |
53 | fClusterType(kUndef) | |
85c60a8e | 54 | { |
55 | // | |
56 | // The default ESD constructor | |
57 | // | |
58 | fGlobalPos[0] = fGlobalPos[1] = fGlobalPos[2] = 0.; | |
59 | for(Int_t i=0; i<AliPID::kSPECIESN; i++) fPID[i] = 0.; | |
60 | } | |
61 | ||
62 | //_______________________________________________________________________ | |
63 | AliESDCaloCluster::AliESDCaloCluster(const AliESDCaloCluster& clus) : | |
64 | TObject(clus), | |
4dd59c4a | 65 | fTracksMatched(clus.fTracksMatched?new TArrayI(*clus.fTracksMatched):0x0), |
66 | fLabels(clus.fLabels?new TArrayI(*clus.fLabels):0x0), | |
e649177a | 67 | fNCells(clus.fNCells), |
68 | fCellsAbsId(), | |
69 | fCellsAmpFraction(), | |
70 | fDigitAmplitude(clus.fDigitAmplitude?new TArrayS(*clus.fDigitAmplitude):0x0),//not in use | |
71 | fDigitTime(clus.fDigitTime?new TArrayS(*clus.fDigitTime):0x0),//not in use | |
72 | fDigitIndex(clus.fDigitIndex?new TArrayS(*clus.fDigitIndex):0x0),//not in use | |
85c60a8e | 73 | fEnergy(clus.fEnergy), |
74 | fDispersion(clus.fDispersion), | |
75 | fChi2(clus.fChi2), | |
e3e93796 | 76 | fM20(clus.fM20), |
77 | fM02(clus.fM02), | |
e0af7ed2 | 78 | fM11(clus.fM11), |
e3e93796 | 79 | fEmcCpvDistance(clus.fEmcCpvDistance), |
45636e1b | 80 | fDistToBadChannel(clus.fDistToBadChannel), |
8ada0ffe | 81 | fID(clus.fID), |
82 | fNExMax(clus.fNExMax), | |
83 | fClusterType(clus.fClusterType) | |
85c60a8e | 84 | { |
85 | // | |
86 | // The copy constructor | |
87 | // | |
88 | fGlobalPos[0] = clus.fGlobalPos[0]; | |
89 | fGlobalPos[1] = clus.fGlobalPos[1]; | |
90 | fGlobalPos[2] = clus.fGlobalPos[2]; | |
91 | ||
92 | for(Int_t i=0; i<AliPID::kSPECIESN; i++) fPID[i] = clus.fPID[i]; | |
93 | ||
e649177a | 94 | if (clus.fNCells > 0) { |
95 | ||
96 | if(clus.fCellsAbsId){ | |
97 | fCellsAbsId = new UShort_t[clus.fNCells]; | |
98 | for (Int_t i=0; i<clus.fNCells; i++) | |
99 | fCellsAbsId[i]=clus.fCellsAbsId[i]; | |
100 | } | |
101 | ||
102 | if(clus.fCellsAmpFraction){ | |
103 | fCellsAmpFraction = new Double32_t[clus.fNCells]; | |
104 | for (Int_t i=0; i<clus.fNCells; i++) | |
105 | fCellsAmpFraction[i]=clus.fCellsAmpFraction[i]; | |
106 | } | |
107 | ||
108 | } | |
109 | ||
85c60a8e | 110 | } |
111 | ||
fe12e09c | 112 | //_______________________________________________________________________ |
113 | AliESDCaloCluster &AliESDCaloCluster::operator=(const AliESDCaloCluster& source) | |
114 | { | |
115 | // assignment operator | |
116 | ||
117 | if(&source == this) return *this; | |
8ada0ffe | 118 | TObject::operator=(source); |
119 | ||
120 | fGlobalPos[0] = source.fGlobalPos[0]; | |
121 | fGlobalPos[1] = source.fGlobalPos[1]; | |
122 | fGlobalPos[2] = source.fGlobalPos[2]; | |
123 | ||
fe12e09c | 124 | |
fe12e09c | 125 | fEnergy = source.fEnergy; |
126 | fDispersion = source.fDispersion; | |
127 | fChi2 = source.fChi2; | |
fe12e09c | 128 | fM20 = source.fM20; |
129 | fM02 = source.fM02; | |
130 | fM11 = source.fM11; | |
fe12e09c | 131 | fEmcCpvDistance = source.fEmcCpvDistance; |
45636e1b | 132 | fDistToBadChannel = source.fDistToBadChannel ; |
fe12e09c | 133 | for(Int_t i=0; i<AliPID::kSPECIESN; i++) fPID[i] = source.fPID[i]; |
8ada0ffe | 134 | fID = source.fID; |
fe12e09c | 135 | |
732a24fe | 136 | fNCells= source.fNCells; |
137 | ||
e649177a | 138 | if (source.fNCells > 0) { |
e649177a | 139 | if(source.fCellsAbsId){ |
732a24fe | 140 | if(fNCells != source.fNCells){ |
141 | delete [] fCellsAbsId; | |
142 | fCellsAbsId = new UShort_t[source.fNCells]; | |
143 | } | |
e649177a | 144 | for (Int_t i=0; i<source.fNCells; i++) |
145 | fCellsAbsId[i]=source.fCellsAbsId[i]; | |
146 | } | |
147 | ||
148 | if(source.fCellsAmpFraction){ | |
732a24fe | 149 | if(fNCells != source.fNCells){ |
150 | delete [] fCellsAmpFraction; | |
151 | fCellsAmpFraction = new Double32_t[source.fNCells]; | |
152 | } | |
e649177a | 153 | for (Int_t i=0; i<source.fNCells; i++) |
154 | fCellsAmpFraction[i]=source.fCellsAmpFraction[i]; | |
732a24fe | 155 | } |
e649177a | 156 | } |
157 | ||
158 | fNExMax = source.fNExMax; | |
159 | fClusterType = source.fClusterType; | |
160 | ||
161 | //not in use | |
732a24fe | 162 | if(source.fTracksMatched){ |
163 | // assign or copy construct | |
164 | if(fTracksMatched) *fTracksMatched = *source.fTracksMatched; | |
165 | else fTracksMatched = new TArrayI(*source.fTracksMatched); | |
166 | } | |
167 | else{ | |
168 | delete fTracksMatched; | |
169 | fTracksMatched = 0; | |
170 | } | |
171 | ||
172 | if(source.fLabels){ | |
173 | // assign or copy construct | |
174 | if(fLabels) *fLabels = *source.fLabels; | |
175 | else fLabels = new TArrayI(*source.fLabels); | |
176 | } | |
177 | else{ | |
178 | delete fLabels; | |
179 | fLabels = 0; | |
180 | } | |
181 | ||
182 | ||
183 | if(source.fDigitAmplitude){ | |
184 | // assign or copy construct | |
185 | if(fDigitAmplitude) *fDigitAmplitude = *source.fDigitAmplitude; | |
186 | else fDigitAmplitude = new TArrayS(*source.fDigitAmplitude); | |
187 | } | |
188 | else{ | |
189 | delete fDigitAmplitude; | |
190 | fDigitAmplitude = 0; | |
191 | } | |
192 | ||
193 | ||
194 | ||
195 | if(source.fDigitTime){ | |
196 | // assign or copy construct | |
197 | if(fDigitTime) *fDigitTime = *source.fDigitTime; | |
198 | else fDigitTime = new TArrayS(*source.fDigitTime); | |
199 | } | |
200 | else{ | |
201 | delete fDigitTime; | |
202 | fDigitTime = 0; | |
203 | } | |
204 | ||
205 | ||
206 | ||
207 | if(source.fDigitIndex){ | |
208 | // assign or copy construct | |
209 | if(fDigitIndex) *fDigitIndex = *source.fDigitIndex; | |
210 | else fDigitIndex = new TArrayS(*source.fDigitIndex); | |
211 | } | |
212 | else{ | |
213 | delete fDigitIndex; | |
214 | fDigitIndex = 0; | |
215 | } | |
e649177a | 216 | |
fe12e09c | 217 | return *this; |
218 | ||
219 | } | |
220 | ||
732a24fe | 221 | void AliESDCaloCluster::Copy(TObject &obj) const { |
222 | ||
223 | // this overwrites the virtual TOBject::Copy() | |
224 | // to allow run time copying without casting | |
225 | // in AliESDEvent | |
226 | ||
227 | if(this==&obj)return; | |
228 | AliESDCaloCluster *robj = dynamic_cast<AliESDCaloCluster*>(&obj); | |
229 | if(!robj)return; // not an AliESDCluster | |
230 | *robj = *this; | |
231 | ||
232 | } | |
85c60a8e | 233 | |
234 | //_______________________________________________________________________ | |
235 | AliESDCaloCluster::~AliESDCaloCluster(){ | |
236 | // | |
5efdec54 | 237 | // This is destructor according Coding Conventions |
85c60a8e | 238 | // |
5efdec54 | 239 | delete fTracksMatched; |
240 | delete fLabels; | |
e649177a | 241 | delete fDigitAmplitude; //not in use |
242 | delete fDigitTime; //not in use | |
243 | delete fDigitIndex; //not in use | |
244 | if(fCellsAmpFraction) delete[] fCellsAmpFraction; fCellsAmpFraction=0; | |
245 | if(fCellsAbsId) delete[] fCellsAbsId; fCellsAbsId = 0; | |
85c60a8e | 246 | } |
247 | ||
248 | //_______________________________________________________________________ | |
249 | void AliESDCaloCluster::SetPid(const Float_t *p) { | |
250 | // Sets the probability of each particle type | |
251 | // Copied from AliESDtrack SetPIDValues | |
252 | // This function copies "n" PID weights from "scr" to "dest" | |
253 | // and normalizes their sum to 1 thus producing conditional | |
254 | // probabilities. | |
255 | // The negative weights are set to 0. | |
256 | // In case all the weights are non-positive they are replaced by | |
257 | // uniform probabilities | |
258 | ||
259 | Int_t n = AliPID::kSPECIESN; | |
260 | ||
261 | Float_t uniform = 1./(Float_t)n; | |
262 | ||
263 | Float_t sum = 0; | |
264 | for (Int_t i=0; i<n; i++) | |
265 | if (p[i]>=0) { | |
266 | sum+=p[i]; | |
267 | fPID[i] = p[i]; | |
268 | } | |
269 | else { | |
270 | fPID[i] = 0; | |
271 | } | |
272 | ||
273 | if(sum>0) | |
274 | for (Int_t i=0; i<n; i++) fPID[i] /= sum; | |
275 | else | |
276 | for (Int_t i=0; i<n; i++) fPID[i] = uniform; | |
277 | ||
278 | } | |
bab0b5f0 | 279 | |
280 | //_______________________________________________________________________ | |
5efdec54 | 281 | void AliESDCaloCluster::GetMomentum(TLorentzVector& p, Double_t *vertex ) { |
bab0b5f0 | 282 | // Returns TLorentzVector with momentum of the cluster. Only valid for clusters |
283 | // identified as photons or pi0 (overlapped gamma) produced on the vertex | |
5efdec54 | 284 | //Vertex can be recovered with esd pointer doing: |
285 | //" Double_t vertex[3] ; esd->GetVertex()->GetXYZ(vertex) ; " | |
286 | ||
287 | if(vertex){//calculate direction from vertex | |
288 | fGlobalPos[0]-=vertex[0]; | |
289 | fGlobalPos[1]-=vertex[1]; | |
290 | fGlobalPos[2]-=vertex[2]; | |
291 | } | |
bab0b5f0 | 292 | |
293 | Double_t r = TMath::Sqrt(fGlobalPos[0]*fGlobalPos[0]+ | |
294 | fGlobalPos[1]*fGlobalPos[1]+ | |
295 | fGlobalPos[2]*fGlobalPos[2] ) ; | |
296 | ||
297 | p.SetPxPyPzE( fEnergy*fGlobalPos[0]/r, fEnergy*fGlobalPos[1]/r, fEnergy*fGlobalPos[2]/r, fEnergy) ; | |
298 | ||
299 | } |