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 **************************************************************************/
18 //_________________________________________________________________________
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
25 //*-- Author: Sahal Yacoob (LBL)
26 // based on : AliPHOSDigit
27 //__________________________________________________________________________
29 // --- ROOT system ---
30 #include <Riostream.h>
33 // --- Standard library ---
35 // --- AliRoot header files ---
37 #include "AliEMCALDigit.h"
38 #include "AliEMCALGeometry.h"
40 ClassImp(AliEMCALDigit)
42 //____________________________________________________________________________
43 AliEMCALDigit::AliEMCALDigit() :
68 // Need to initialise for reading old files
69 fPrimary = new Int_t[fNMaxPrimary] ;
70 fDEPrimary = new Float_t[fNMaxPrimary] ;
71 fIparent = new Int_t[fNMaxiparent] ;
72 fDEParent = new Float_t[fNMaxiparent] ;
73 for ( Int_t i = 0; i < fNMaxPrimary ; i++) {
78 for ( Int_t i = 0; i < fNMaxiparent ; i++) {
84 //____________________________________________________________________________
85 AliEMCALDigit::AliEMCALDigit(Int_t primary, Int_t iparent, Int_t id, Float_t digEnergy, Float_t time, Int_t type, Int_t index, Float_t chi2, Int_t ndf, Float_t dE)
108 // ctor with all data
110 // data memebrs of the base class (AliNewDigit)
113 fIndexInList = index ;
116 fPrimary = new Int_t[fNMaxPrimary] ;
117 fDEPrimary = new Float_t[fNMaxPrimary] ;
118 fIparent = new Int_t[fNMaxiparent] ;
119 fDEParent = new Float_t[fNMaxiparent] ;
122 fPrimary[0] = primary ;
125 fIparent[0] = iparent ;
128 else{ //If the contribution of this primary smaller than fDigitThreshold (AliEMCALv1)
137 for ( i = 1; i < fNMaxPrimary ; i++) {
142 for ( i = 1; i< fNMaxiparent ; i++) {
148 //____________________________________________________________________________
149 AliEMCALDigit::AliEMCALDigit(const AliEMCALDigit & digit)
150 : AliDigitNew(digit),
151 fAmpFloat(digit.fAmpFloat),
152 fNSamples(digit.fNSamples),
154 fNSamplesHG(digit.fNSamplesHG),
156 fNprimary(digit.fNprimary),
157 fNMaxPrimary(digit.fNMaxPrimary),
160 fNiparent(digit.fNiparent),
161 fNMaxiparent(digit.fNMaxiparent),
164 fMaxIter(digit.fMaxIter),
166 fTimeR(digit.fTimeR),
169 fDigitType(digit.fDigitType),
170 fAmpCalib(digit.fAmpCalib)
173 // data memebrs of the base class (AliNewDigit)
176 fIndexInList = digit.fIndexInList ;
179 if (fSamples ) delete [] fSamples ; fSamples = NULL ;
180 if (fSamplesHG ) delete [] fSamplesHG ; fSamplesHG = NULL ;
181 if (fPrimary ) delete [] fPrimary ; fPrimary = NULL ;
182 if (fDEPrimary) delete [] fDEPrimary ; fDEPrimary = NULL ;
183 if (fIparent ) delete [] fIparent ; fIparent = NULL ;
184 if (fDEParent) delete [] fDEParent ; fDEParent = NULL ;
187 fSamples = new Int_t[fNSamples];
188 for (Int_t i=0; i < digit.fNSamples; i++) fSamples[i] = digit.fSamples[i];
192 fSamplesHG = new Int_t[fNSamplesHG];
193 for (Int_t i=0; i < digit.fNSamplesHG; i++) fSamplesHG[i] = digit.fSamplesHG[i];
198 fPrimary = new Int_t [fNMaxPrimary] ;
199 fDEPrimary = new Float_t[fNMaxPrimary] ;
200 for ( Int_t i = 0; i < fNMaxPrimary ; i++) {
201 fPrimary[i] = digit.fPrimary[i] ;
202 fDEPrimary[i] = digit.fDEPrimary[i] ;
207 fIparent = new Int_t [fNMaxiparent] ;
208 fDEParent = new Float_t[fNMaxiparent] ;
209 for (Int_t j = 0; j< fNMaxiparent ; j++) {
210 fIparent[j] = digit.fIparent[j] ;
211 fDEParent[j] = digit.fDEParent[j] ;
217 //____________________________________________________________________________
218 AliEMCALDigit::~AliEMCALDigit()
220 // Delete array of primaries if any
222 if (fSamples ) delete [] fSamples ; fSamples = NULL ;
223 if (fSamplesHG ) delete [] fSamplesHG ; fSamplesHG = NULL ;
224 if (fPrimary ) delete [] fPrimary ; fPrimary = NULL ;
225 if (fDEPrimary) delete [] fDEPrimary ; fDEPrimary = NULL ;
226 if (fIparent ) delete [] fIparent ; fIparent = NULL ;
227 if (fDEParent) delete [] fDEParent ; fDEParent = NULL ;
232 //____________________________________________________________________________
233 void AliEMCALDigit::Clear(const Option_t*)
235 // Delete array of primaries if any
236 if (fSamples ) delete [] fSamples ; fSamples = NULL ;
237 if (fSamplesHG ) delete [] fSamplesHG ; fSamplesHG = NULL ;
238 if (fPrimary ) delete [] fPrimary ; fPrimary = NULL ;
239 if (fDEPrimary) delete [] fDEPrimary ; fDEPrimary = NULL ;
240 if (fIparent ) delete [] fIparent ; fIparent = NULL ;
241 if (fDEParent) delete [] fDEParent ; fDEParent = NULL ;
245 //____________________________________________________________________________
246 Int_t AliEMCALDigit::Compare(const TObject * obj) const
248 // Compares two digits with respect to its Id
249 // to sort according increasing Id
253 AliEMCALDigit * digit = (AliEMCALDigit *)obj ;
255 Int_t iddiff = fId - digit->GetId() ;
259 else if ( iddiff < 0 )
268 //____________________________________________________________________________
269 Float_t AliEMCALDigit::GetEta() const
271 //return pseudorapidity for this digit
272 // should be change in EMCALGeometry - 19-nov-04
273 Float_t eta=-10., phi=-10.;
275 const AliEMCALGeometry *g = AliEMCALGeometry::GetInstance();
276 g->EtaPhiFromIndex(id,eta,phi);
280 //____________________________________________________________________________
281 Float_t AliEMCALDigit::GetPhi() const
283 //return phi coordinate of digit
284 // should be change in EMCALGeometry - 19-nov-04
285 Float_t eta=-10., phi=-10.;
287 const AliEMCALGeometry *g = AliEMCALGeometry::GetInstance();
288 g->EtaPhiFromIndex(id,eta,phi);
292 //____________________________________________________________________________
293 Bool_t AliEMCALDigit::GetFALTROSample(const Int_t iSample, Int_t& timeBin, Int_t& amp) const
295 //Get FALTRO sample in time bin iSample
296 if (iSample >= fNSamples || iSample < 0 || fDigitType==kTrigger) return kFALSE;
298 amp = fSamples[iSample] & 0xFFF;
299 timeBin = (fSamples[iSample] >> 12) & 0xFF;
303 //____________________________________________________________________________
304 Bool_t AliEMCALDigit::GetALTROSampleLG(const Int_t iSample, Int_t& timeBin, Int_t& amp) const
306 //Get Low Gain ALTRO sample in time bin iSample
307 if (iSample >= fNSamples || iSample < 0 || fDigitType==kLG) return kFALSE;
309 amp = fSamples[iSample] & 0xFFF;
310 timeBin = (fSamples[iSample] >> 12) & 0xFF;
315 //____________________________________________________________________________
316 void AliEMCALDigit::SetALTROSamplesLG(const Int_t nSamples, Int_t *samples)
318 //Set array of ALTRO samples, Low Gain or FALTRO
319 fNSamples = nSamples;
320 fSamples = new Int_t[fNSamples];
321 for (Int_t i=0; i < fNSamples; i++) fSamples[i] = samples[i];
324 //____________________________________________________________________________
325 void AliEMCALDigit::SetALTROSamplesHG(const Int_t nSamples, Int_t *samples)
327 //Set array of ALTRO samples, High Gain.
328 fNSamplesHG = nSamples;
329 fSamplesHG = new Int_t[fNSamplesHG];
330 for (Int_t i=0; i < fNSamplesHG; i++) fSamplesHG[i] = samples[i];
334 //____________________________________________________________________________
335 Bool_t AliEMCALDigit::GetALTROSampleHG(const Int_t iSample, Int_t& timeBin, Int_t& amp) const
337 //Get High Gain ALTRO sample in time bin iSample
338 if (iSample >= fNSamplesHG || iSample < 0 || fDigitType==kHG) return kFALSE;
340 amp = fSamplesHG[iSample] & 0xFFF;
341 timeBin = (fSamplesHG[iSample] >> 12) & 0xFF;
347 //____________________________________________________________________________
348 Int_t AliEMCALDigit::GetPrimary(Int_t index) const
350 // retrieves the primary particle number given its index in the list
351 if ( (index <= fNprimary) && (index > 0)){
352 return fPrimary[index-1] ;
358 //____________________________________________________________________________
359 Float_t AliEMCALDigit::GetDEPrimary(Int_t index) const
361 // retrieves the primary particle energy contribution
362 // given its index in the list
363 if ( (index <= fNprimary) && (index > 0)){
364 return fDEPrimary[index-1] ;
371 //____________________________________________________________________________
372 Int_t AliEMCALDigit::GetIparent(Int_t index) const
374 // retrieves the primary particle number given its index in the list
375 if ( index <= fNiparent && index > 0){
376 return fIparent[index-1] ;
383 //____________________________________________________________________________
384 Float_t AliEMCALDigit::GetDEParent(Int_t index) const
386 // retrieves the parent particle energy contribution
387 // given its index in the list
388 if ( (index <= fNiparent) && (index > 0)){
389 return fDEParent[index-1] ;
395 //____________________________________________________________________________
396 void AliEMCALDigit::ShiftPrimary(Int_t shift){
397 //shifts primary number to BIG offset, to separate primary in different TreeK
399 for(index = 0; index <fNprimary; index++ ){
400 fPrimary[index] = fPrimary[index]+ shift * 10000000 ;}
401 for(index =0; index <fNiparent; index++){
402 fIparent[index] = fIparent[index] + shift * 10000000 ;}
404 //____________________________________________________________________________
405 Bool_t AliEMCALDigit::operator==(AliEMCALDigit const & digit) const
407 // Two digits are equal if they have the same Id
409 if ( fId == digit.fId )
415 //____________________________________________________________________________
416 AliEMCALDigit AliEMCALDigit::operator+(const AliEMCALDigit &digit)
418 // Adds the amplitude of digits and completes the list of primary particles
419 // if amplitude is larger than
421 fAmpFloat += digit.fAmpFloat ;
422 for (Int_t i=0; i < fNSamples ; i++) fSamples[i] += digit.fSamples[i];
423 for (Int_t i=0; i < fNSamplesHG; i++) fSamplesHG[i] += digit.fSamplesHG[i];
426 if(fTime > digit.fTime)
427 fTime = digit.fTime ;
428 if (digit.fTimeR < fTimeR)
429 fTimeR = digit.fTimeR ;
431 Int_t max1 = fNprimary ;
432 Int_t max2 = fNiparent ;
434 for (index = 0 ; index < digit.fNprimary ; index++){
435 Bool_t newPrim = kTRUE ;
437 for ( old = 0 ; (old < max1) && newPrim; old++) { //already have this primary?
438 if(fPrimary[old] == digit.fPrimary[index]) {
440 fDEPrimary[old] += digit.fDEPrimary[index];
444 if(max1<fNMaxPrimary){
445 fPrimary[max1] = digit.fPrimary[index] ;
446 fDEPrimary[max1] = digit.fDEPrimary[index] ;
450 if(fNprimary==fNMaxPrimary) {
452 TString mess = " NMaxPrimary = " ;
453 mess += fNMaxPrimary ;
454 mess += " is too small" ;
455 AliFatal(mess.Data()) ;
461 for (index = 0 ; index < digit.fNiparent ; index++){
462 Bool_t newParent = kTRUE ;
464 for ( old = 0 ; (old < max2) && newParent; old++) { //already have this primary?
465 if(fIparent[old] == digit.fIparent[index]) {
467 fDEParent[old] += digit.fDEParent[index];
471 if(max2<fNMaxiparent) {
472 fIparent[max2] = digit.fIparent[index] ;
473 fDEParent[max2] = digit.fDEParent[index] ;
477 if(fNiparent==fNMaxiparent) {
479 TString mess = " NMaxiparent = " ;
480 mess += fNMaxiparent ;
481 mess += " is too small" ;
482 AliFatal(mess.Data()) ;
491 //____________________________________________________________________________
492 AliEMCALDigit AliEMCALDigit::operator*(Float_t factor)
494 // Multiplies the amplitude by a factor
496 //Float_t tempo = static_cast<Float_t>(fAmp) ;
498 //fAmp = static_cast<Int_t>(TMath::Floor(tempo)) ;
501 for (Int_t i=0; i < fNSamples ; i++) fSamples[i] = Int_t(factor*fSamples[i]);
502 for (Int_t i=0; i < fNSamplesHG; i++) fSamplesHG[i] = Int_t(factor*fSamplesHG[i]);
504 for(Int_t i=0; i < fNprimary; i++)
505 fDEPrimary[i] *= factor;
506 for(Int_t i=0; i < fNiparent; i++)
507 fDEParent[i] *= factor;
512 //____________________________________________________________________________
513 ostream& operator << ( ostream& out , const AliEMCALDigit & digit)
515 // Prints the data of the digit
517 out << "ID " << digit.fId << " Energy = " << digit.fAmp << " Time = " << digit.fTime << endl ;
518 for(Int_t i=0;i<digit.fNprimary;i++)
519 out << "Primary " << i+1 << " = " << digit.fPrimary[i]
520 << " : DE " << digit.fDEPrimary[i] << endl ;
522 for(Int_t j=0;j<digit.fNiparent;j++)
523 out << "Iparent " << j+1 << " = " << digit.fIparent[j]
524 << " : DE " << digit.fDEParent[j] << endl ;
525 out << "Position in list = " << digit.fIndexInList << endl ;
529 //____________________________________________________________________________
530 void AliEMCALDigit::Print(const Option_t* /*opt*/) const
533 printf("===\nDigit id: %4d / Energy %2.3f ; Time %e ; Time samples %d ; Chi2 %2.3f, NDF %d, Type? %d \n",
534 fId, fAmpFloat,fTime, fNSamples, fChi2, fNDF, fDigitType);
535 if(fDigitType==kTrigger){
537 for (Int_t i=0; i < GetNFALTROSamples(); i++)
540 GetFALTROSample(i, timeBin, amp);
541 printf(" (%d,%d) ",timeBin,amp);
546 printf("ALTRO, Low Gain: ");
547 for (Int_t i=0; i < GetNALTROSamplesLG(); i++)
550 GetALTROSampleLG(i, timeBin, amp);
551 printf(" (%d,%d) ",timeBin,amp);
554 printf("ALTRO, High Gain: ");
555 for (Int_t i=0; i < GetNALTROSamplesHG(); i++)
558 GetALTROSampleHG(i, timeBin, amp);
559 printf(" (%d,%d) ",timeBin,amp);