kParam_4000_Ecal added
[u/mrichter/AliRoot.git] / EMCAL / AliEMCALDigit.cxx
CommitLineData
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
ffa6d63b 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 ---
30
31// --- Standard library ---
32
33#include <iostream.h>
34
35// --- AliRoot header files ---
36
37#include "AliEMCALDigit.h"
814ad4bf 38#include "AliEMCALGeometry.h"
88d764f0 39#include "AliEMCALGetter.h"
61e0abb5 40
41
42ClassImp(AliEMCALDigit)
43
44//____________________________________________________________________________
45 AliEMCALDigit::AliEMCALDigit()
46{
47 // default ctor
48
49 fIndexInList = -1 ;
50 fNprimary = 0 ;
7b62cd84 51 fNMaxPrimary = 20 ;
61e0abb5 52 fNiparent = 0 ;
53 fNMaxiparent = fNMaxPrimary*10;
88d764f0 54 fPrimary = new Int_t[fNMaxPrimary] ;
55 fIparent = new Int_t[fNMaxiparent] ;
61e0abb5 56}
57
58//____________________________________________________________________________
814ad4bf 59AliEMCALDigit::AliEMCALDigit(Int_t primary, Int_t iparent, Int_t id, Int_t DigEnergy, Float_t time, Int_t index)
61e0abb5 60{
61 // ctor with all data
62
7b62cd84 63 fNMaxPrimary = 20 ;
61e0abb5 64 fNMaxiparent = fNMaxPrimary*10;
88d764f0 65 fPrimary = new Int_t[fNMaxPrimary] ;
66 fIparent = new Int_t[fNMaxiparent] ;
61e0abb5 67 fAmp = DigEnergy ;
814ad4bf 68 fTime = time ;
61e0abb5 69 fId = id ;
70 fIndexInList = index ;
71 if( primary != -1){
72 fNprimary = 1 ;
7b62cd84 73 fPrimary[0] = primary ;
61e0abb5 74 fNiparent = 1 ;
75 fIparent[0] = iparent ;
7b62cd84 76}
61e0abb5 77 else{ //If the contribution of this primary smaller than fDigitThreshold (AliEMCALv1)
78 fNprimary = 0 ;
79 fPrimary[0] = -1 ;
80 fNiparent = 0 ;
81 fIparent[0] = -1 ;
82
83 }
84 Int_t i ;
85 for ( i = 1; i < fNMaxPrimary ; i++)
86 fPrimary[i] = -1 ;
87
88 for ( Int_t j =1; j< fNMaxiparent ; j++)
89 fIparent[j] = -1 ;
90}
91
92//____________________________________________________________________________
93AliEMCALDigit::AliEMCALDigit(const AliEMCALDigit & digit)
94{
95 // copy ctor
96
97
98 fNMaxPrimary = digit.fNMaxPrimary ;
99 fNMaxiparent = digit.fNMaxiparent ;
88d764f0 100 fPrimary = new Int_t[fNMaxPrimary] ;
101 fIparent = new Int_t[fNMaxiparent] ;
61e0abb5 102 Int_t i ;
103 for ( i = 0; i < fNMaxPrimary ; i++)
104 fPrimary[i] = digit.fPrimary[i] ;
105 Int_t j ;
106 for (j = 0; j< fNMaxiparent ; j++)
107 fIparent[j] = digit.fIparent[j] ;
108 fAmp = digit.fAmp ;
814ad4bf 109 fTime = digit.fTime ;
61e0abb5 110 fId = digit.fId;
111 fIndexInList = digit.fIndexInList ;
112 fNprimary = digit.fNprimary ;
113 fNiparent = digit.fNiparent ;
114}
115
116//____________________________________________________________________________
117AliEMCALDigit::~AliEMCALDigit()
118{
119 // Delete array of primiries if any
88d764f0 120 delete [] fPrimary ;
121 delete [] fIparent ;
61e0abb5 122}
123
124//____________________________________________________________________________
125Int_t AliEMCALDigit::Compare(const TObject * obj) const
126{
127 // Compares two digits with respect to its Id
128 // to sort according increasing Id
129
130 Int_t rv ;
131
132 AliEMCALDigit * digit = (AliEMCALDigit *)obj ;
133
134 Int_t iddiff = fId - digit->GetId() ;
135
136 if ( iddiff > 0 )
137 rv = 1 ;
138 else if ( iddiff < 0 )
139 rv = -1 ;
140 else
141 rv = 0 ;
142
143 return rv ;
144
145}
146
147//____________________________________________________________________________
814ad4bf 148const Float_t AliEMCALDigit::GetEta() const
149{
150 Float_t eta=-10., phi=-10.;
151 AliEMCALGeometry::GetInstance()->EtaPhiFromIndex(fId,eta,phi);
152 return eta ;
153}
154
155//____________________________________________________________________________
156const Float_t AliEMCALDigit::GetPhi() const
157{
158 Float_t eta=-10., phi=-10.;
159 AliEMCALGeometry::GetInstance()->EtaPhiFromIndex(fId,eta,phi);
160 return phi ;
161}
162
163//____________________________________________________________________________
61e0abb5 164Int_t AliEMCALDigit::GetPrimary(Int_t index) const
165{
166 // retrieves the primary particle number given its index in the list
167 Int_t rv = -1 ;
814ad4bf 168 if ( index <= fNprimary && index > 0){
61e0abb5 169 rv = fPrimary[index-1] ;
170 }
171
172 return rv ;
173
174}
175
176//____________________________________________________________________________
177Int_t AliEMCALDigit::GetIparent(Int_t index) const
178{
179 // retrieves the primary particle number given its index in the list
180 Int_t rv = -1 ;
181 if ( index <= fNiparent ){
182 rv = fIparent[index-1] ;
183 }
184
185 return rv ;
186
187}
188
88d764f0 189//______________________________________________________________________
190const Bool_t AliEMCALDigit::IsInPreShower() const
191{
192 Bool_t rv = kFALSE ;
193 const AliEMCALGeometry * geom = AliEMCALGetter::GetInstance()->EMCALGeometry() ;
194 if( GetId() > (geom->GetNZ() * geom->GetNPhi() ))
195 rv = kTRUE;
196 return rv;
197}
61e0abb5 198
199//____________________________________________________________________________
200void AliEMCALDigit::ShiftPrimary(Int_t shift){
201 //shifts primary nimber to BIG offset, to separate primary in different TreeK
202 Int_t index ;
203 for(index = 0; index <fNprimary; index++ ){
204 fPrimary[index] = fPrimary[index]+ shift * 10000000 ;}
205 for(index =0; index <fNiparent; index++){
206 fIparent[index] = fIparent[index] + shift * 10000000 ;}
207}
208//____________________________________________________________________________
209Bool_t AliEMCALDigit::operator==(AliEMCALDigit const & digit) const
210{
211 // Two digits are equal if they have the same Id
212
213 if ( fId == digit.fId )
214 return kTRUE ;
215 else
216 return kFALSE ;
217}
218
219//____________________________________________________________________________
220AliEMCALDigit& AliEMCALDigit::operator+(AliEMCALDigit const & digit)
221{
222 // Adds the amplitude of digits and completes the list of primary particles
223 // if amplitude is larger than
224
225 fAmp += digit.fAmp ;
814ad4bf 226 if(fTime > digit.fTime)
227 fTime = digit.fTime ;
7b62cd84 228
61e0abb5 229 Int_t max1 = fNprimary ;
230 Int_t max2 = fNiparent ;
231 Int_t index ;
7b62cd84 232 for (index = 0 ; index < digit.fNprimary ; index++){
61e0abb5 233 Bool_t deja = kTRUE ;
234 Int_t old ;
235 for ( old = 0 ; (old < max1) && deja; old++) { //already have this primary?
7b62cd84 236 if(fPrimary[old] == digit.fPrimary[index])
61e0abb5 237 deja = kFALSE;
238 }
239 if(deja){
7b62cd84 240 if(max1<fNMaxPrimary){ fPrimary[max1] = digit.fPrimary[index] ;
61e0abb5 241 fNprimary++ ;
7b62cd84 242 max1++;}
243 if(fNprimary==fNMaxPrimary) {
244 Int_t printindex ;
245 for (printindex = 0 ; printindex < max1 ; printindex++)
246 cout << "printindex = " << printindex << " primary = " << fPrimary[printindex];
247 cout <<endl;
248 cout << "AliEMCALDigit >> Increase NMaxPrimary "<< endl ;
249// return *this ;
61e0abb5 250 }
251 }
252 }
253
254 for (index = 0 ; index < digit.fNiparent ; index++){
255 Bool_t dejavu = kTRUE ;
256 Int_t old ;
257 for ( old = 0 ; (old < max2) && dejavu; old++) { //already have this primary?
7b62cd84 258 if(fIparent[old] == digit.fIparent[index])
61e0abb5 259 dejavu = kFALSE;
260 }
261 if(dejavu){
7b62cd84 262 if(max2<fNMaxiparent){ fIparent[max2] = digit.fIparent[index] ;
61e0abb5 263 fNiparent++ ;
7b62cd84 264 max2++;}
265 if(fNiparent==fNMaxiparent) {
266 Int_t printindex ;
267 for (printindex = 0 ; printindex < max1 ; printindex++)
268 cout << "printindex = " << printindex << " primary = " << fPrimary[printindex];
269 cout <<endl;
61e0abb5 270 cout << "AliEMCALDigit >> Increase NMaxiparent "<< endl ;
271 return *this ;
272 }
273 }
274 }
275
276 return *this ;
277}
278
279//____________________________________________________________________________
280ostream& operator << ( ostream& out , const AliEMCALDigit & digit)
281{
282 // Prints the data of the digit
283
814ad4bf 284 out << "ID " << digit.fId << " Energy = " << digit.fAmp << " Time = " << digit.fTime << endl ;
61e0abb5 285 Int_t i,j ;
286 for(i=0;i<digit.fNprimary;i++)
287 out << "Primary " << i+1 << " = " << digit.fPrimary[i] << endl ;
288
289 for(j=0;j<digit.fNiparent;j++)
290 out << "Iparent " << j+1 << " = " << digit.fIparent[j] << endl ;
291 out << "Position in list = " << digit.fIndexInList << endl ;
292 return out ;
293}
294
295