Bug in title-name corrected
[u/mrichter/AliRoot.git] / EMCAL / AliEMCALDigit.cxx
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61e0abb5 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
18//_________________________________________________________________________
19// EMCAL digit: Id
20// energy
21// 3 identifiers for the primary particle(s) at the origine of the digit
22// The digits are made in FinishEvent() by summing all the hits in a single EMCAL crystal or PPSD gas cell
23// It would be nice to replace the 3 identifiers by an array, but, because digits are kept in a TClonesQArray,
24// it is not possible to stream such an array... (beyond my understqnding!)
25//
26//*-- Author: Laurent Aphecetche & Yves Schutz (SUBATECH)
27
28
29// --- ROOT system ---
30
31// --- Standard library ---
32
33#include <iostream.h>
34
35// --- AliRoot header files ---
36
37#include "AliEMCALDigit.h"
38
39
40ClassImp(AliEMCALDigit)
41
42//____________________________________________________________________________
43 AliEMCALDigit::AliEMCALDigit()
44{
45 // default ctor
46
47 fIndexInList = -1 ;
48 fNprimary = 0 ;
49 fNMaxPrimary = 5 ;
50 fNiparent = 0 ;
51 fNMaxiparent = fNMaxPrimary*10;
52}
53
54//____________________________________________________________________________
55AliEMCALDigit::AliEMCALDigit(Int_t primary, Int_t iparent, Int_t id, Int_t DigEnergy, Int_t index)
56{
57 // ctor with all data
58
59 fNMaxPrimary = 5 ;
60 fNMaxiparent = fNMaxPrimary*10;
61 fAmp = DigEnergy ;
62 fId = id ;
63 fIndexInList = index ;
64 if( primary != -1){
65 fNprimary = 1 ;
66 fPrimary[0] = primary ;
67 fNiparent = 1 ;
68 fIparent[0] = iparent ;
69
70 }
71 else{ //If the contribution of this primary smaller than fDigitThreshold (AliEMCALv1)
72 fNprimary = 0 ;
73 fPrimary[0] = -1 ;
74 fNiparent = 0 ;
75 fIparent[0] = -1 ;
76
77 }
78 Int_t i ;
79 for ( i = 1; i < fNMaxPrimary ; i++)
80 fPrimary[i] = -1 ;
81
82 for ( Int_t j =1; j< fNMaxiparent ; j++)
83 fIparent[j] = -1 ;
84}
85
86//____________________________________________________________________________
87AliEMCALDigit::AliEMCALDigit(const AliEMCALDigit & digit)
88{
89 // copy ctor
90
91
92 fNMaxPrimary = digit.fNMaxPrimary ;
93 fNMaxiparent = digit.fNMaxiparent ;
94 Int_t i ;
95 for ( i = 0; i < fNMaxPrimary ; i++)
96 fPrimary[i] = digit.fPrimary[i] ;
97 Int_t j ;
98 for (j = 0; j< fNMaxiparent ; j++)
99 fIparent[j] = digit.fIparent[j] ;
100 fAmp = digit.fAmp ;
101 fId = digit.fId;
102 fIndexInList = digit.fIndexInList ;
103 fNprimary = digit.fNprimary ;
104 fNiparent = digit.fNiparent ;
105}
106
107//____________________________________________________________________________
108AliEMCALDigit::~AliEMCALDigit()
109{
110 // Delete array of primiries if any
111
112}
113
114//____________________________________________________________________________
115Int_t AliEMCALDigit::Compare(const TObject * obj) const
116{
117 // Compares two digits with respect to its Id
118 // to sort according increasing Id
119
120 Int_t rv ;
121
122 AliEMCALDigit * digit = (AliEMCALDigit *)obj ;
123
124 Int_t iddiff = fId - digit->GetId() ;
125
126 if ( iddiff > 0 )
127 rv = 1 ;
128 else if ( iddiff < 0 )
129 rv = -1 ;
130 else
131 rv = 0 ;
132
133 return rv ;
134
135}
136
137//____________________________________________________________________________
138Int_t AliEMCALDigit::GetPrimary(Int_t index) const
139{
140 // retrieves the primary particle number given its index in the list
141 Int_t rv = -1 ;
142 if ( index <= fNprimary ){
143 rv = fPrimary[index-1] ;
144 }
145
146 return rv ;
147
148}
149
150//____________________________________________________________________________
151Int_t AliEMCALDigit::GetIparent(Int_t index) const
152{
153 // retrieves the primary particle number given its index in the list
154 Int_t rv = -1 ;
155 if ( index <= fNiparent ){
156 rv = fIparent[index-1] ;
157 }
158
159 return rv ;
160
161}
162
163
164//____________________________________________________________________________
165void AliEMCALDigit::ShiftPrimary(Int_t shift){
166 //shifts primary nimber to BIG offset, to separate primary in different TreeK
167 Int_t index ;
168 for(index = 0; index <fNprimary; index++ ){
169 fPrimary[index] = fPrimary[index]+ shift * 10000000 ;}
170 for(index =0; index <fNiparent; index++){
171 fIparent[index] = fIparent[index] + shift * 10000000 ;}
172}
173//____________________________________________________________________________
174Bool_t AliEMCALDigit::operator==(AliEMCALDigit const & digit) const
175{
176 // Two digits are equal if they have the same Id
177
178 if ( fId == digit.fId )
179 return kTRUE ;
180 else
181 return kFALSE ;
182}
183
184//____________________________________________________________________________
185AliEMCALDigit& AliEMCALDigit::operator+(AliEMCALDigit const & digit)
186{
187 // Adds the amplitude of digits and completes the list of primary particles
188 // if amplitude is larger than
189
190 fAmp += digit.fAmp ;
191
192 Int_t max1 = fNprimary ;
193 Int_t max2 = fNiparent ;
194 Int_t index ;
195 for (index = 0 ; index < digit.fNprimary ; index++){
196 Bool_t deja = kTRUE ;
197 Int_t old ;
198 for ( old = 0 ; (old < max1) && deja; old++) { //already have this primary?
199 if(fPrimary[old] == (digit.fPrimary)[index])
200 deja = kFALSE;
201 }
202 if(deja){
203 fPrimary[fNprimary] = (digit.fPrimary)[index] ;
204 fNprimary++ ;
205 if(fNprimary>fNMaxPrimary) {
206 cout << "AliEMCALDigit >> Increase NMaxPrimary "<< endl ;
207 return *this ;
208 }
209 }
210 }
211
212 for (index = 0 ; index < digit.fNiparent ; index++){
213 Bool_t dejavu = kTRUE ;
214 Int_t old ;
215 for ( old = 0 ; (old < max2) && dejavu; old++) { //already have this primary?
216 if(fIparent[old] == (digit.fIparent)[index])
217 dejavu = kFALSE;
218 }
219 if(dejavu){
220 fIparent[fNiparent] = (digit.fIparent)[index] ;
221 fNiparent++ ;
222 if(fNiparent>fNMaxiparent) {
223 cout << "AliEMCALDigit >> Increase NMaxiparent "<< endl ;
224 return *this ;
225 }
226 }
227 }
228
229 return *this ;
230}
231
232//____________________________________________________________________________
233ostream& operator << ( ostream& out , const AliEMCALDigit & digit)
234{
235 // Prints the data of the digit
236
237 out << "ID " << digit.fId << " Energy = " << digit.fAmp << endl ;
238 Int_t i,j ;
239 for(i=0;i<digit.fNprimary;i++)
240 out << "Primary " << i+1 << " = " << digit.fPrimary[i] << endl ;
241
242 for(j=0;j<digit.fNiparent;j++)
243 out << "Iparent " << j+1 << " = " << digit.fIparent[j] << endl ;
244 out << "Position in list = " << digit.fIndexInList << endl ;
245 return out ;
246}
247
248