Example of conversion of fidutial marks to alignment objects (Raffaele)
[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
090026bf 16/* $Id$ */
61e0abb5 17
18//_________________________________________________________________________
ffa6d63b 19// EMCAL digit:
20// A Digit is the sum of the energy lost in an EMCAL Tower
21// It also stores information on Primary, and enterring particle
22// tracknumbers Digits are created using AliEMCALSDigitizer, followed
23// by AliEMCALDigitizer
61e0abb5 24//
ffa6d63b 25//*-- Author: Sahal Yacoob (LBL)
26// based on : AliPHOSDigit
814ad4bf 27//__________________________________________________________________________
61e0abb5 28
29// --- ROOT system ---
090026bf 30#include <Riostream.h>
31#include <TMath.h>
61e0abb5 32
33// --- Standard library ---
34
61e0abb5 35// --- AliRoot header files ---
36
37#include "AliEMCALDigit.h"
814ad4bf 38#include "AliEMCALGeometry.h"
61e0abb5 39
40ClassImp(AliEMCALDigit)
41
42//____________________________________________________________________________
514da33c 43AliEMCALDigit::AliEMCALDigit() :
44 AliDigitNew(),
45 fNprimary(0),
46 fNMaxPrimary(5),
47 fPrimary(0x0),
48 fNiparent(0),
49 fNMaxiparent(5),
50 fIparent(0x0),
51 fMaxIter(0),
52 fTime(0.),
53 fTimeR(0.)
54
61e0abb5 55{
56 // default ctor
57
61e0abb5 58}
59
60//____________________________________________________________________________
814ad4bf 61AliEMCALDigit::AliEMCALDigit(Int_t primary, Int_t iparent, Int_t id, Int_t DigEnergy, Float_t time, Int_t index)
18a21c7c 62 : AliDigitNew(),
63 fNprimary(0),
64 fNMaxPrimary(25),
65 fPrimary(0x0),
66 fNiparent(0),
67 fNMaxiparent(150),
68 fIparent(0x0),
69 fMaxIter(5),
70 fTime(time),
71 fTimeR(time)
61e0abb5 72{
73 // ctor with all data
74
514da33c 75 // data memebrs of the base class (AliNewDigit)
76 fAmp = DigEnergy ;
77 fId = id ;
78 fIndexInList = index ;
79
80 // data members
88d764f0 81 fPrimary = new Int_t[fNMaxPrimary] ;
82 fIparent = new Int_t[fNMaxiparent] ;
61e0abb5 83 if( primary != -1){
84 fNprimary = 1 ;
7b62cd84 85 fPrimary[0] = primary ;
61e0abb5 86 fNiparent = 1 ;
87 fIparent[0] = iparent ;
7b62cd84 88}
61e0abb5 89 else{ //If the contribution of this primary smaller than fDigitThreshold (AliEMCALv1)
90 fNprimary = 0 ;
91 fPrimary[0] = -1 ;
92 fNiparent = 0 ;
93 fIparent[0] = -1 ;
94
95 }
96 Int_t i ;
97 for ( i = 1; i < fNMaxPrimary ; i++)
98 fPrimary[i] = -1 ;
99
f807c3bd 100 for ( i =1; i< fNMaxiparent ; i++)
101 fIparent[i] = -1 ;
61e0abb5 102}
103
104//____________________________________________________________________________
18a21c7c 105AliEMCALDigit::AliEMCALDigit(const AliEMCALDigit & digit)
106 : AliDigitNew(digit),
107 fNprimary(digit.fNprimary),
108 fNMaxPrimary(digit.fNMaxPrimary),
109 fPrimary(0x0),
110 fNiparent(digit.fNiparent),
111 fNMaxiparent(digit.fNMaxiparent),
112 fIparent(0x0),
113 fMaxIter(digit.fMaxIter),
114 fTime(digit.fTime),
115 fTimeR(digit.fTimeR)
61e0abb5 116{
117 // copy ctor
118
514da33c 119 // data memebrs of the base class (AliNewDigit)
120 fAmp = digit.fAmp ;
121 fId = digit.fId;
122 fIndexInList = digit.fIndexInList ;
61e0abb5 123
514da33c 124 // data members
88d764f0 125 fPrimary = new Int_t[fNMaxPrimary] ;
126 fIparent = new Int_t[fNMaxiparent] ;
61e0abb5 127 Int_t i ;
128 for ( i = 0; i < fNMaxPrimary ; i++)
129 fPrimary[i] = digit.fPrimary[i] ;
130 Int_t j ;
131 for (j = 0; j< fNMaxiparent ; j++)
132 fIparent[j] = digit.fIparent[j] ;
61e0abb5 133}
134
135//____________________________________________________________________________
136AliEMCALDigit::~AliEMCALDigit()
137{
138 // Delete array of primiries if any
88d764f0 139 delete [] fPrimary ;
140 delete [] fIparent ;
61e0abb5 141}
142
143//____________________________________________________________________________
144Int_t AliEMCALDigit::Compare(const TObject * obj) const
145{
146 // Compares two digits with respect to its Id
147 // to sort according increasing Id
148
149 Int_t rv ;
150
151 AliEMCALDigit * digit = (AliEMCALDigit *)obj ;
152
153 Int_t iddiff = fId - digit->GetId() ;
154
155 if ( iddiff > 0 )
156 rv = 1 ;
157 else if ( iddiff < 0 )
158 rv = -1 ;
159 else
160 rv = 0 ;
161
162 return rv ;
163
164}
165
166//____________________________________________________________________________
88cb7938 167Float_t AliEMCALDigit::GetEta() const
14ce0a6e 168{
169 //return pseudorapidity for this digit
170 // should be change in EMCALGeometry - 19-nov-04
814ad4bf 171 Float_t eta=-10., phi=-10.;
563aa66c 172 Int_t id = GetId();
5dee926e 173 const AliEMCALGeometry *g = AliEMCALGeometry::GetInstance();
563aa66c 174 g->EtaPhiFromIndex(id,eta,phi);
814ad4bf 175 return eta ;
176}
177
178//____________________________________________________________________________
88cb7938 179Float_t AliEMCALDigit::GetPhi() const
14ce0a6e 180{
181 //return phi coordinate of digit
182 // should be change in EMCALGeometry - 19-nov-04
814ad4bf 183 Float_t eta=-10., phi=-10.;
563aa66c 184 Int_t id = GetId();
5dee926e 185 const AliEMCALGeometry *g = AliEMCALGeometry::GetInstance();
563aa66c 186 g->EtaPhiFromIndex(id,eta,phi);
814ad4bf 187 return phi ;
188}
189
190//____________________________________________________________________________
61e0abb5 191Int_t AliEMCALDigit::GetPrimary(Int_t index) const
192{
193 // retrieves the primary particle number given its index in the list
194 Int_t rv = -1 ;
fdebddeb 195 if ( (index <= fNprimary) && (index > 0)){
61e0abb5 196 rv = fPrimary[index-1] ;
197 }
198
199 return rv ;
200
201}
202
203//____________________________________________________________________________
204Int_t AliEMCALDigit::GetIparent(Int_t index) const
205{
206 // retrieves the primary particle number given its index in the list
207 Int_t rv = -1 ;
208 if ( index <= fNiparent ){
209 rv = fIparent[index-1] ;
210 }
211
212 return rv ;
213
214}
215
61e0abb5 216//____________________________________________________________________________
217void AliEMCALDigit::ShiftPrimary(Int_t shift){
fdebddeb 218 //shifts primary number to BIG offset, to separate primary in different TreeK
61e0abb5 219 Int_t index ;
220 for(index = 0; index <fNprimary; index++ ){
221 fPrimary[index] = fPrimary[index]+ shift * 10000000 ;}
222 for(index =0; index <fNiparent; index++){
223 fIparent[index] = fIparent[index] + shift * 10000000 ;}
224}
225//____________________________________________________________________________
226Bool_t AliEMCALDigit::operator==(AliEMCALDigit const & digit) const
227{
228 // Two digits are equal if they have the same Id
229
230 if ( fId == digit.fId )
231 return kTRUE ;
232 else
233 return kFALSE ;
234}
235
236//____________________________________________________________________________
0a4cb131 237AliEMCALDigit AliEMCALDigit::operator+(const AliEMCALDigit &digit)
61e0abb5 238{
239 // Adds the amplitude of digits and completes the list of primary particles
240 // if amplitude is larger than
241
242 fAmp += digit.fAmp ;
814ad4bf 243 if(fTime > digit.fTime)
244 fTime = digit.fTime ;
04f0bda3 245 fTimeR = fTime ;
7b62cd84 246
61e0abb5 247 Int_t max1 = fNprimary ;
248 Int_t max2 = fNiparent ;
249 Int_t index ;
7b62cd84 250 for (index = 0 ; index < digit.fNprimary ; index++){
61e0abb5 251 Bool_t deja = kTRUE ;
252 Int_t old ;
253 for ( old = 0 ; (old < max1) && deja; old++) { //already have this primary?
7b62cd84 254 if(fPrimary[old] == digit.fPrimary[index])
61e0abb5 255 deja = kFALSE;
256 }
257 if(deja){
7b62cd84 258 if(max1<fNMaxPrimary){ fPrimary[max1] = digit.fPrimary[index] ;
61e0abb5 259 fNprimary++ ;
7b62cd84 260 max1++;}
261 if(fNprimary==fNMaxPrimary) {
8704424d 262
451bc3c5 263 TString mess = " NMaxPrimary = " ;
264 mess += fNMaxPrimary ;
265 mess += " is too small" ;
266 Fatal("AliEMCALDigit::Operator+ -->" , mess.Data()) ;
8704424d 267
61e0abb5 268 }
269 }
270 }
271
272 for (index = 0 ; index < digit.fNiparent ; index++){
273 Bool_t dejavu = kTRUE ;
274 Int_t old ;
275 for ( old = 0 ; (old < max2) && dejavu; old++) { //already have this primary?
7b62cd84 276 if(fIparent[old] == digit.fIparent[index])
61e0abb5 277 dejavu = kFALSE;
278 }
279 if(dejavu){
7b62cd84 280 if(max2<fNMaxiparent){ fIparent[max2] = digit.fIparent[index] ;
61e0abb5 281 fNiparent++ ;
7b62cd84 282 max2++;}
283 if(fNiparent==fNMaxiparent) {
8704424d 284
451bc3c5 285 TString mess = " NMaxiparent = " ;
286 mess += fNMaxiparent ;
287 mess += " is too small" ;
288 Fatal("AliEMCALDigit::Operator+ -->", mess.Data()) ;
8704424d 289
61e0abb5 290 }
291 }
292 }
293
294 return *this ;
295}
296
297//____________________________________________________________________________
0a4cb131 298AliEMCALDigit AliEMCALDigit::operator*(Float_t factor)
563aa66c 299{
300 // Multiplies the amplitude by a factor
301
302 Float_t tempo = static_cast<Float_t>(fAmp) ;
303 tempo *= factor ;
304 fAmp = static_cast<Int_t>(TMath::Ceil(tempo)) ;
305 return *this ;
306}
307
308//____________________________________________________________________________
61e0abb5 309ostream& operator << ( ostream& out , const AliEMCALDigit & digit)
310{
311 // Prints the data of the digit
312
814ad4bf 313 out << "ID " << digit.fId << " Energy = " << digit.fAmp << " Time = " << digit.fTime << endl ;
61e0abb5 314 Int_t i,j ;
315 for(i=0;i<digit.fNprimary;i++)
316 out << "Primary " << i+1 << " = " << digit.fPrimary[i] << endl ;
317
318 for(j=0;j<digit.fNiparent;j++)
319 out << "Iparent " << j+1 << " = " << digit.fIparent[j] << endl ;
320 out << "Position in list = " << digit.fIndexInList << endl ;
321 return out ;
322}
323
324