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 **************************************************************************/
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
25 //-----------------------------------------------------------------
27 #include <TLorentzVector.h>
28 #include "AliESDCaloCluster.h"
30 ClassImp(AliESDCaloCluster)
32 //_______________________________________________________________________
33 AliESDCaloCluster::AliESDCaloCluster() :
39 fCellsAmpFraction(0x0),
40 fDigitAmplitude(0x0),//not in use
41 fDigitTime(0x0),//not in use
42 fDigitIndex(0x0),//not in use
48 fEmcCpvDistance(1024),
49 fDistToBadChannel(1024),
52 fClusterType(kUndef), fTOF(0.)
55 // The default ESD constructor
57 fGlobalPos[0] = fGlobalPos[1] = fGlobalPos[2] = 0.;
58 for(Int_t i=0; i<AliPID::kSPECIESN; i++) fPID[i] = 0.;
61 //_______________________________________________________________________
62 AliESDCaloCluster::AliESDCaloCluster(const AliESDCaloCluster& clus) :
64 fTracksMatched(clus.fTracksMatched?new TArrayI(*clus.fTracksMatched):0x0),
65 fLabels(clus.fLabels?new TArrayI(*clus.fLabels):0x0),
66 fNCells(clus.fNCells),
69 fDigitAmplitude(clus.fDigitAmplitude?new TArrayS(*clus.fDigitAmplitude):0x0),//not in use
70 fDigitTime(clus.fDigitTime?new TArrayS(*clus.fDigitTime):0x0),//not in use
71 fDigitIndex(clus.fDigitIndex?new TArrayS(*clus.fDigitIndex):0x0),//not in use
72 fEnergy(clus.fEnergy),
73 fDispersion(clus.fDispersion),
77 fEmcCpvDistance(clus.fEmcCpvDistance),
78 fDistToBadChannel(clus.fDistToBadChannel),
80 fNExMax(clus.fNExMax),
81 fClusterType(clus.fClusterType),
85 // The copy constructor
87 fGlobalPos[0] = clus.fGlobalPos[0];
88 fGlobalPos[1] = clus.fGlobalPos[1];
89 fGlobalPos[2] = clus.fGlobalPos[2];
91 for(Int_t i=0; i<AliPID::kSPECIESN; i++) fPID[i] = clus.fPID[i];
93 if (clus.fNCells > 0) {
96 fCellsAbsId = new UShort_t[clus.fNCells];
97 for (Int_t i=0; i<clus.fNCells; i++)
98 fCellsAbsId[i]=clus.fCellsAbsId[i];
101 if(clus.fCellsAmpFraction){
102 fCellsAmpFraction = new Double32_t[clus.fNCells];
103 for (Int_t i=0; i<clus.fNCells; i++)
104 fCellsAmpFraction[i]=clus.fCellsAmpFraction[i];
111 //_______________________________________________________________________
112 AliESDCaloCluster &AliESDCaloCluster::operator=(const AliESDCaloCluster& source)
114 // assignment operator
116 if(&source == this) return *this;
117 TObject::operator=(source);
119 fGlobalPos[0] = source.fGlobalPos[0];
120 fGlobalPos[1] = source.fGlobalPos[1];
121 fGlobalPos[2] = source.fGlobalPos[2];
124 fEnergy = source.fEnergy;
125 fDispersion = source.fDispersion;
126 fChi2 = source.fChi2;
129 fEmcCpvDistance = source.fEmcCpvDistance;
130 fDistToBadChannel = source.fDistToBadChannel ;
131 for(Int_t i=0; i<AliPID::kSPECIESN; i++) fPID[i] = source.fPID[i];
134 fNCells= source.fNCells;
136 if (source.fNCells > 0) {
137 if(source.fCellsAbsId){
138 if(fNCells != source.fNCells){
139 delete [] fCellsAbsId;
140 fCellsAbsId = new UShort_t[source.fNCells];
142 for (Int_t i=0; i<source.fNCells; i++)
143 fCellsAbsId[i]=source.fCellsAbsId[i];
146 if(source.fCellsAmpFraction){
147 if(fNCells != source.fNCells){
148 delete [] fCellsAmpFraction;
149 fCellsAmpFraction = new Double32_t[source.fNCells];
151 for (Int_t i=0; i<source.fNCells; i++)
152 fCellsAmpFraction[i]=source.fCellsAmpFraction[i];
156 fNExMax = source.fNExMax;
157 fClusterType = source.fClusterType;
161 if(source.fTracksMatched){
162 // assign or copy construct
163 if(fTracksMatched) *fTracksMatched = *source.fTracksMatched;
164 else fTracksMatched = new TArrayI(*source.fTracksMatched);
167 delete fTracksMatched;
172 // assign or copy construct
173 if(fLabels) *fLabels = *source.fLabels;
174 else fLabels = new TArrayI(*source.fLabels);
182 if(source.fDigitAmplitude){
183 // assign or copy construct
184 if(fDigitAmplitude) *fDigitAmplitude = *source.fDigitAmplitude;
185 else fDigitAmplitude = new TArrayS(*source.fDigitAmplitude);
188 delete fDigitAmplitude;
194 if(source.fDigitTime){
195 // assign or copy construct
196 if(fDigitTime) *fDigitTime = *source.fDigitTime;
197 else fDigitTime = new TArrayS(*source.fDigitTime);
206 if(source.fDigitIndex){
207 // assign or copy construct
208 if(fDigitIndex) *fDigitIndex = *source.fDigitIndex;
209 else fDigitIndex = new TArrayS(*source.fDigitIndex);
220 void AliESDCaloCluster::Copy(TObject &obj) const {
222 // this overwrites the virtual TOBject::Copy()
223 // to allow run time copying without casting
226 if(this==&obj)return;
227 AliESDCaloCluster *robj = dynamic_cast<AliESDCaloCluster*>(&obj);
228 if(!robj)return; // not an AliESDCluster
233 //_______________________________________________________________________
234 AliESDCaloCluster::~AliESDCaloCluster(){
236 // This is destructor according Coding Conventions
238 delete fTracksMatched;
240 delete fDigitAmplitude; //not in use
241 delete fDigitTime; //not in use
242 delete fDigitIndex; //not in use
243 if(fCellsAmpFraction) delete[] fCellsAmpFraction; fCellsAmpFraction=0;
244 if(fCellsAbsId) delete[] fCellsAbsId; fCellsAbsId = 0;
247 //_______________________________________________________________________
248 void AliESDCaloCluster::SetPid(const Float_t *p) {
249 // Sets the probability of each particle type
250 // Copied from AliESDtrack SetPIDValues
251 // This function copies "n" PID weights from "scr" to "dest"
252 // and normalizes their sum to 1 thus producing conditional
254 // The negative weights are set to 0.
255 // In case all the weights are non-positive they are replaced by
256 // uniform probabilities
258 Int_t n = AliPID::kSPECIESN;
260 Float_t uniform = 1./(Float_t)n;
263 for (Int_t i=0; i<n; i++)
273 for (Int_t i=0; i<n; i++) fPID[i] /= sum;
275 for (Int_t i=0; i<n; i++) fPID[i] = uniform;
279 //_______________________________________________________________________
280 void AliESDCaloCluster::GetMomentum(TLorentzVector& p, Double_t *vertex ) {
281 // Returns TLorentzVector with momentum of the cluster. Only valid for clusters
282 // identified as photons or pi0 (overlapped gamma) produced on the vertex
283 //Vertex can be recovered with esd pointer doing:
284 //" Double_t vertex[3] ; esd->GetVertex()->GetXYZ(vertex) ; "
286 if(vertex){//calculate direction from vertex
287 fGlobalPos[0]-=vertex[0];
288 fGlobalPos[1]-=vertex[1];
289 fGlobalPos[2]-=vertex[2];
292 Double_t r = TMath::Sqrt(fGlobalPos[0]*fGlobalPos[0]+
293 fGlobalPos[1]*fGlobalPos[1]+
294 fGlobalPos[2]*fGlobalPos[2] ) ;
296 p.SetPxPyPzE( fEnergy*fGlobalPos[0]/r, fEnergy*fGlobalPos[1]/r, fEnergy*fGlobalPos[2]/r, fEnergy) ;
300 //_______________________________________________________________________
301 void AliESDCaloCluster::SetCellsAbsId(UShort_t *array)
303 // Set the array of cell absId numbers
305 fCellsAbsId = new UShort_t[fNCells];
306 for (Int_t i = 0; i < fNCells; i++) fCellsAbsId[i] = array[i];
310 //_______________________________________________________________________
311 void AliESDCaloCluster::SetCellsAmplitudeFraction(Double32_t *array)
313 // Set the array of cell amplitude fraction
315 fCellsAmpFraction = new Double32_t[fNCells];
316 for (Int_t i = 0; i < fNCells; i++) fCellsAmpFraction[i] = array[i];