[u/mrichter/AliRoot.git] / PHOS / AliPHOSDigit.cxx

/**************************************************************************
 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 *                                                                        *
 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
 *                                                                        *
 * Permission to use, copy, modify and distribute this software and its   *
 * documentation strictly for non-commercial purposes is hereby granted   *
 * without fee, provided that the above copyright notice appears in all   *
 * copies and that both the copyright notice and this permission notice   *
 * appear in the supporting documentation. The authors make no claims     *
 * about the suitability of this software for any purpose. It is          *
 * provided "as is" without express or implied warranty.                  *
 **************************************************************************/

/* $Id$ */

/* History of cvs commits:
 *
 * $Log$
 * Revision 1.39  2006/04/22 15:04:24  hristov
 * Effective C++ initialization of data members in the default constructor
 *
 * Revision 1.38  2006/04/22 10:30:17  hristov
 * Add fEnergy to AliPHOSDigit and operate with EMC amplitude in energy units (Yu.Kharlov)
 *
 * Revision 1.37  2005/05/28 14:19:04  schutz
 * Compilation warnings fixed by T.P.
 *
 */

//_________________________________________________________________________
//  PHOS digit: Id
//              energy
//              3 identifiers for the primary particle(s) at the origine of the digit
//  The digits are made in FinishEvent() by summing all the hits in a single PHOS crystal or PPSD gas cell
//
//*-- Author: Laurent Aphecetche & Yves Schutz (SUBATECH) & Dmitri Peressounko (RRC KI & SUBATECH)


// --- ROOT system ---

#include "TMath.h"

// --- Standard library ---

// --- AliRoot header files ---

#include "AliPHOSDigit.h"
#include "AliLog.h"


ClassImp(AliPHOSDigit)

//____________________________________________________________________________
AliPHOSDigit::AliPHOSDigit() :
  AliDigitNew(),
  fIsLG(0),
  fNprimary(0),  
  fPrimary(0x0),
  fEnergy(0.),
  fTime(0.),
  fTimeR(0.),
  fNSamplesHG(0),
  fNSamplesLG(0),
  fSamplesHG(0),
  fSamplesLG(0)
{
  // default ctor 
}

//____________________________________________________________________________
AliPHOSDigit::AliPHOSDigit(Int_t primary, Int_t id, Int_t digEnergy, Float_t time, Int_t index) :
  fIsLG(0),
  fNprimary(0),
  fPrimary(0),
  fEnergy(0.f),
  fTime(0.f),
  fTimeR(0.f),
  fNSamplesHG(0),
  fNSamplesLG(0),
  fSamplesHG(0),
  fSamplesLG(0)
{  
  // ctor with all data 

  fAmp         = digEnergy ;
  fEnergy      = 0 ;
  fTime        = time ;
  fTimeR       = fTime ;
  fId          = id ;
  fIndexInList = index ; 

  if( primary != -1){
    fNprimary    = 1 ; 
    fPrimary = new Int_t[fNprimary] ;
    fPrimary[0]  = primary ;
  }
  else{  //If the contribution of this primary smaller than fDigitThreshold (AliPHOSv1)
    fNprimary = 0 ; 
    fPrimary  = 0 ;
  }
}

//____________________________________________________________________________
AliPHOSDigit::AliPHOSDigit(Int_t primary, Int_t id, Float_t energy, Float_t time, Int_t index) :
  fIsLG(0),
  fNprimary(0),
  fPrimary(0),
  fEnergy(0.f),
  fTime(0.f),
  fTimeR(0.f),
  fNSamplesHG(0),
  fNSamplesLG(0),
  fSamplesHG(0),
  fSamplesLG(0)
{  
  // ctor with all data 

  fAmp         = 0 ;
  fEnergy      = energy ;
  fTime        = time ;
  fTimeR       = fTime ;
  fId          = id ;
  fIndexInList = index ; 
  if( primary != -1){
    fNprimary    = 1 ; 
    fPrimary = new Int_t[fNprimary] ;
    fPrimary[0]  = primary ;
  }
  else{  //If the contribution of this primary smaller than fDigitThreshold (AliPHOSv1)
    fNprimary = 0 ; 
    fPrimary  = 0 ;
  }
}

//____________________________________________________________________________
AliPHOSDigit::AliPHOSDigit(const AliPHOSDigit & digit) : 
  AliDigitNew(digit),
  fNprimary(digit.fNprimary),
  fIsLG(digit.fIsLG),
  fPrimary(0),
  fEnergy(digit.fEnergy),
  fTime(digit.fTime),
  fTimeR(digit.fTimeR),
  fNSamplesHG(0),
  fNSamplesLG(0),
  fSamplesHG(0),
  fSamplesLG(0)
{
  // copy ctor
  if(fNprimary){
    fPrimary = new Int_t[fNprimary] ;
    for (Int_t i = 0; i < fNprimary ; i++)
       fPrimary[i]  = digit.fPrimary[i] ;
  }
  else
    fPrimary = 0 ;
  fAmp         = digit.fAmp ;
  fId          = digit.fId;
  fIndexInList = digit.fIndexInList ; 
}

//____________________________________________________________________________
AliPHOSDigit & AliPHOSDigit::operator = (const AliPHOSDigit &)
{
  Fatal("operator =", "not implemented");
  return *this;
}
//____________________________________________________________________________
AliPHOSDigit::~AliPHOSDigit() 
{
  // Delete array of primaries if any
  if (fPrimary)   delete [] fPrimary  ;
  // Delete arrays of ALTRO samples if any
  if (fSamplesHG) delete [] fSamplesHG;
  if (fSamplesLG) delete [] fSamplesLG;
}

//____________________________________________________________________________
Int_t AliPHOSDigit::Compare(const TObject * obj) const
{
  // Compares two digits with respect to its Id
  // to sort according increasing Id

  Int_t rv ;

  AliPHOSDigit * digit = (AliPHOSDigit *)obj ; 

  Int_t iddiff = fId - digit->GetId() ; 

  if ( iddiff > 0 ) 
    rv = 1 ;
  else if ( iddiff < 0 )
    rv = -1 ; 
  else
    rv = 0 ;
  
  return rv ; 

}

//____________________________________________________________________________
Int_t AliPHOSDigit::GetPrimary(Int_t index) const
{
  // retrieves the primary particle number given its index in the list 
  Int_t rv = -1 ;
  if ( index <= fNprimary && index > 0){
    rv = fPrimary[index-1] ;
  } 

  return rv ; 
  
}

//____________________________________________________________________________
void AliPHOSDigit::SetALTROSamplesHG(Int_t nSamplesHG, Int_t *samplesHG)
{
  fNSamplesHG = nSamplesHG;
  if (fSamplesHG) delete [] fSamplesHG;
  fSamplesHG = new UShort_t[fNSamplesHG];
  UShort_t i;
  for (i=0; i<fNSamplesHG; i++) {
    fSamplesHG[i] = samplesHG[i];
  }
}
//____________________________________________________________________________
void AliPHOSDigit::SetALTROSamplesLG(Int_t nSamplesLG, Int_t *samplesLG)
{
  fNSamplesLG = nSamplesLG;
  if (fSamplesLG) delete [] fSamplesLG;
  fSamplesLG = new UShort_t[fNSamplesLG];
  UShort_t i;
  for (i=0; i<fNSamplesLG; i++) {
    fSamplesLG[i] = samplesLG[i];
  }
}
//____________________________________________________________________________
void AliPHOSDigit::Print(const Option_t *) const
{
  // Print the digit together with list of primaries
  TString line = Form("PHOS digit: E=%.3f, Id=%d, Time=%.3e, TimeR=%.3e, NPrim=%d, nHG=%d, nLG=%d \n",
		      fEnergy,fId,fTime,fTimeR,fNprimary,fNSamplesHG,fNSamplesLG);
  line += "\tList of primaries: ";
  for (Int_t index = 0; index <fNprimary; index ++ )
    line += Form(" %d ",fPrimary[index]); 
  line += "\n";
  line += "\tSamples HG: ";
  for (Int_t i = 0; i <fNSamplesHG; i++)
    line += Form(" %d ",fSamplesHG[i]); 
  line += "\n";
  line += "\tSamples LG: ";
  for (Int_t i = 0; i <fNSamplesLG; i++)
    line += Form(" %d ",fSamplesLG[i]); 
  line += "\n";
  AliDebug(2,line);
}
//____________________________________________________________________________
void AliPHOSDigit::ShiftPrimary(Int_t shift)
{
  //shifts primary number to BIG offset, to separate primary in different TreeK
  for(Int_t index = 0; index <fNprimary; index ++ ){
    fPrimary[index]+= shift ;
  } 
}
//____________________________________________________________________________
Bool_t AliPHOSDigit::operator==(AliPHOSDigit const & digit) const 
{
  // Two digits are equal if they have the same Id
  
  if ( fId == digit.fId ) 
    return kTRUE ;
  else 
    return kFALSE ;
}
 
//____________________________________________________________________________
AliPHOSDigit& AliPHOSDigit::operator+=(AliPHOSDigit const & digit) 
{

  // Adds the amplitude of digits and completes the list of primary particles
  if(digit.fNprimary>0){
     Int_t *tmp = new Int_t[fNprimary+digit.fNprimary] ;
     if(fAmp < digit.fAmp || fEnergy < digit.fEnergy){//most energetic primary in second digit => first primaries in list from second digit
        for (Int_t index = 0 ; index < digit.fNprimary ; index++)
           tmp[index]=(digit.fPrimary)[index] ;
        for (Int_t index = 0 ; index < fNprimary ; index++)
           tmp[index+digit.fNprimary]=fPrimary[index] ;
     }
     else{ //add new primaries to the end
        for (Int_t index = 0 ; index < fNprimary ; index++)
           tmp[index]=fPrimary[index] ;
        for (Int_t index = 0 ; index < digit.fNprimary ; index++)
           tmp[index+fNprimary]=(digit.fPrimary)[index] ;
     }
     if(fPrimary)
       delete []fPrimary ;
     fPrimary = tmp ;
   }
   fNprimary+=digit.fNprimary ;
   fAmp     += digit.fAmp ;
   fEnergy  += digit.fEnergy ;
   if(fTime > digit.fTime)
      fTime = digit.fTime ;
   fTimeR = fTime ; 

   // Add high-gain ALTRO samples
   UShort_t i;
   if (digit.fNSamplesHG > fNSamplesHG) {
     UShort_t newNSamplesHG = digit.fNSamplesHG;
     UShort_t *newSamplesHG = new UShort_t[newNSamplesHG];
     for (i=0; i<newNSamplesHG; i++) {
       if (i<fNSamplesHG)
	 newSamplesHG[i] = TMath::Max(1023,fSamplesHG[i] + (digit.fSamplesHG)[i]);
       else
	 newSamplesHG[i] = (digit.fSamplesHG)[i];
     }
     delete [] fSamplesHG;
     fSamplesHG = new UShort_t[newNSamplesHG];
     for (i=0; i<newNSamplesHG; i++) {
       fSamplesHG[i] = newSamplesHG[i];
     }
     delete [] newSamplesHG;
   }
   else {
     for (i=0; i<fNSamplesHG; i++)
       fSamplesHG[i] = TMath::Max(1023,fSamplesHG[i] + (digit.fSamplesHG)[i]);
   }

   // Add low-gain ALTRO samples
   if (digit.fNSamplesLG > fNSamplesLG) {
     UShort_t newNSamplesLG = digit.fNSamplesLG;
     UShort_t *newSamplesLG = new UShort_t[newNSamplesLG];
     for (i=0; i<newNSamplesLG; i++) {
       if (i<fNSamplesLG)
	 newSamplesLG[i] = TMath::Max(1023,fSamplesLG[i] + (digit.fSamplesLG)[i]);
       else
	 newSamplesLG[i] = (digit.fSamplesLG)[i];
     }
     delete [] fSamplesLG;
     fSamplesLG = new UShort_t[newNSamplesLG];
     for (i=0; i<newNSamplesLG; i++) {
       fSamplesLG[i] = newSamplesLG[i];
     }
     delete [] newSamplesLG;
   }
   else {
     for (i=0; i<fNSamplesLG; i++)
       fSamplesLG[i] = TMath::Max(1023,fSamplesLG[i] + (digit.fSamplesLG)[i]);
   }
   
   //If at least one digit in LG, then sum also
   fIsLG=fIsLG||digit.fIsLG ;

   return *this ;
}
//____________________________________________________________________________
AliPHOSDigit& AliPHOSDigit::operator *= (Float_t factor) 
{
  // Multiplies the amplitude by a factor
  
  Float_t tempo = static_cast<Float_t>(fAmp) ; 
  tempo *= factor ; 
  fAmp = static_cast<Int_t>(TMath::Ceil(tempo)) ; 
  return *this ;
}

//____________________________________________________________________________
ostream& operator << ( ostream& out , const AliPHOSDigit & digit)
{
  // Prints the data of the digit
  
//   out << "ID " << digit.fId << " Energy = " << digit.fAmp << " Time = " << digit.fTime << endl ; 
//   Int_t i ;
//   for(i=0;i<digit.fNprimary;i++)
//     out << "Primary " << i+1 << " = " << digit.fPrimary[i] << endl ;
//   out << "Position in list = " << digit.fIndexInList << endl ; 
  digit.Warning("operator <<", "Implement differently") ; 
  return out ;
}
Commit	Line	Data
	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	/* History of cvs commits:
	19	*
	20	* $Log$
	21	* Revision 1.39 2006/04/22 15:04:24 hristov
	22	* Effective C++ initialization of data members in the default constructor
	23	*
	24	* Revision 1.38 2006/04/22 10:30:17 hristov
	25	* Add fEnergy to AliPHOSDigit and operate with EMC amplitude in energy units (Yu.Kharlov)
	26	*
	27	* Revision 1.37 2005/05/28 14:19:04 schutz
	28	* Compilation warnings fixed by T.P.
	29	*
	30	*/
	31
	32	//_________________________________________________________________________
	33	// PHOS digit: Id
	34	// energy
	35	// 3 identifiers for the primary particle(s) at the origine of the digit
	36	// The digits are made in FinishEvent() by summing all the hits in a single PHOS crystal or PPSD gas cell
	37	//
	38	//*-- Author: Laurent Aphecetche & Yves Schutz (SUBATECH) & Dmitri Peressounko (RRC KI & SUBATECH)
	39
	40
	41	// --- ROOT system ---
	42
	43	#include "TMath.h"
	44
	45	// --- Standard library ---
	46
	47	// --- AliRoot header files ---
	48
	49	#include "AliPHOSDigit.h"
	50	#include "AliLog.h"
	51
	52
	53
	54	ClassImp(AliPHOSDigit)
	55
	56	//____________________________________________________________________________
	57	AliPHOSDigit::AliPHOSDigit() :
	58	AliDigitNew(),
	59	fIsLG(0),
	60	fNprimary(0),
	61	fPrimary(0x0),
	62	fEnergy(0.),
	63	fTime(0.),
	64	fTimeR(0.),
	65	fNSamplesHG(0),
	66	fNSamplesLG(0),
	67	fSamplesHG(0),
	68	fSamplesLG(0)
	69	{
	70	// default ctor
	71	}
	72
	73	//____________________________________________________________________________
	74	AliPHOSDigit::AliPHOSDigit(Int_t primary, Int_t id, Int_t digEnergy, Float_t time, Int_t index) :
	75	fIsLG(0),
	76	fNprimary(0),
	77	fPrimary(0),
	78	fEnergy(0.f),
	79	fTime(0.f),
	80	fTimeR(0.f),
	81	fNSamplesHG(0),
	82	fNSamplesLG(0),
	83	fSamplesHG(0),
	84	fSamplesLG(0)
	85	{
	86	// ctor with all data
	87
	88	fAmp = digEnergy ;
	89	fEnergy = 0 ;
	90	fTime = time ;
	91	fTimeR = fTime ;
	92	fId = id ;
	93	fIndexInList = index ;
	94
	95	if( primary != -1){
	96	fNprimary = 1 ;
	97	fPrimary = new Int_t[fNprimary] ;
	98	fPrimary[0] = primary ;
	99	}
	100	else{ //If the contribution of this primary smaller than fDigitThreshold (AliPHOSv1)
	101	fNprimary = 0 ;
	102	fPrimary = 0 ;
	103	}
	104	}
	105
	106	//____________________________________________________________________________
	107	AliPHOSDigit::AliPHOSDigit(Int_t primary, Int_t id, Float_t energy, Float_t time, Int_t index) :
	108	fIsLG(0),
	109	fNprimary(0),
	110	fPrimary(0),
	111	fEnergy(0.f),
	112	fTime(0.f),
	113	fTimeR(0.f),
	114	fNSamplesHG(0),
	115	fNSamplesLG(0),
	116	fSamplesHG(0),
	117	fSamplesLG(0)
	118	{
	119	// ctor with all data
	120
	121	fAmp = 0 ;
	122	fEnergy = energy ;
	123	fTime = time ;
	124	fTimeR = fTime ;
	125	fId = id ;
	126	fIndexInList = index ;
	127	if( primary != -1){
	128	fNprimary = 1 ;
	129	fPrimary = new Int_t[fNprimary] ;
	130	fPrimary[0] = primary ;
	131	}
	132	else{ //If the contribution of this primary smaller than fDigitThreshold (AliPHOSv1)
	133	fNprimary = 0 ;
	134	fPrimary = 0 ;
	135	}
	136	}
	137
	138	//____________________________________________________________________________
	139	AliPHOSDigit::AliPHOSDigit(const AliPHOSDigit & digit) :
	140	AliDigitNew(digit),
	141	fNprimary(digit.fNprimary),
	142	fIsLG(digit.fIsLG),
	143	fPrimary(0),
	144	fEnergy(digit.fEnergy),
	145	fTime(digit.fTime),
	146	fTimeR(digit.fTimeR),
	147	fNSamplesHG(0),
	148	fNSamplesLG(0),
	149	fSamplesHG(0),
	150	fSamplesLG(0)
	151	{
	152	// copy ctor
	153	if(fNprimary){
	154	fPrimary = new Int_t[fNprimary] ;
	155	for (Int_t i = 0; i < fNprimary ; i++)
	156	fPrimary[i] = digit.fPrimary[i] ;
	157	}
	158	else
	159	fPrimary = 0 ;
	160	fAmp = digit.fAmp ;
	161	fId = digit.fId;
	162	fIndexInList = digit.fIndexInList ;
	163	}
	164
	165	//____________________________________________________________________________
	166	AliPHOSDigit & AliPHOSDigit::operator = (const AliPHOSDigit &)
	167	{
	168	Fatal("operator =", "not implemented");
	169	return *this;
	170	}
	171	//____________________________________________________________________________
	172	AliPHOSDigit::~AliPHOSDigit()
	173	{
	174	// Delete array of primaries if any
	175	if (fPrimary) delete [] fPrimary ;
	176	// Delete arrays of ALTRO samples if any
	177	if (fSamplesHG) delete [] fSamplesHG;
	178	if (fSamplesLG) delete [] fSamplesLG;
	179	}
	180
	181	//____________________________________________________________________________
	182	Int_t AliPHOSDigit::Compare(const TObject * obj) const
	183	{
	184	// Compares two digits with respect to its Id
	185	// to sort according increasing Id
	186
	187	Int_t rv ;
	188
	189	AliPHOSDigit * digit = (AliPHOSDigit *)obj ;
	190
	191	Int_t iddiff = fId - digit->GetId() ;
	192
	193	if ( iddiff > 0 )
	194	rv = 1 ;
	195	else if ( iddiff < 0 )
	196	rv = -1 ;
	197	else
	198	rv = 0 ;
	199
	200	return rv ;
	201
	202	}
	203
	204	//____________________________________________________________________________
	205	Int_t AliPHOSDigit::GetPrimary(Int_t index) const
	206	{
	207	// retrieves the primary particle number given its index in the list
	208	Int_t rv = -1 ;
	209	if ( index <= fNprimary && index > 0){
	210	rv = fPrimary[index-1] ;
	211	}
	212
	213	return rv ;
	214
	215	}
	216
	217	//____________________________________________________________________________
	218	void AliPHOSDigit::SetALTROSamplesHG(Int_t nSamplesHG, Int_t *samplesHG)
	219	{
	220	fNSamplesHG = nSamplesHG;
	221	if (fSamplesHG) delete [] fSamplesHG;
	222	fSamplesHG = new UShort_t[fNSamplesHG];
	223	UShort_t i;
	224	for (i=0; i<fNSamplesHG; i++) {
	225	fSamplesHG[i] = samplesHG[i];
	226	}
	227	}
	228	//____________________________________________________________________________
	229	void AliPHOSDigit::SetALTROSamplesLG(Int_t nSamplesLG, Int_t *samplesLG)
	230	{
	231	fNSamplesLG = nSamplesLG;
	232	if (fSamplesLG) delete [] fSamplesLG;
	233	fSamplesLG = new UShort_t[fNSamplesLG];
	234	UShort_t i;
	235	for (i=0; i<fNSamplesLG; i++) {
	236	fSamplesLG[i] = samplesLG[i];
	237	}
	238	}
	239	//____________________________________________________________________________
	240	void AliPHOSDigit::Print(const Option_t *) const
	241	{
	242	// Print the digit together with list of primaries
	243	TString line = Form("PHOS digit: E=%.3f, Id=%d, Time=%.3e, TimeR=%.3e, NPrim=%d, nHG=%d, nLG=%d \n",
	244	fEnergy,fId,fTime,fTimeR,fNprimary,fNSamplesHG,fNSamplesLG);
	245	line += "\tList of primaries: ";
	246	for (Int_t index = 0; index <fNprimary; index ++ )
	247	line += Form(" %d ",fPrimary[index]);
	248	line += "\n";
	249	line += "\tSamples HG: ";
	250	for (Int_t i = 0; i <fNSamplesHG; i++)
	251	line += Form(" %d ",fSamplesHG[i]);
	252	line += "\n";
	253	line += "\tSamples LG: ";
	254	for (Int_t i = 0; i <fNSamplesLG; i++)
	255	line += Form(" %d ",fSamplesLG[i]);
	256	line += "\n";
	257	AliDebug(2,line);
	258	}
	259	//____________________________________________________________________________
	260	void AliPHOSDigit::ShiftPrimary(Int_t shift)
	261	{
	262	//shifts primary number to BIG offset, to separate primary in different TreeK
	263	for(Int_t index = 0; index <fNprimary; index ++ ){
	264	fPrimary[index]+= shift ;
	265	}
	266	}
	267	//____________________________________________________________________________
	268	Bool_t AliPHOSDigit::operator==(AliPHOSDigit const & digit) const
	269	{
	270	// Two digits are equal if they have the same Id
	271
	272	if ( fId == digit.fId )
	273	return kTRUE ;
	274	else
	275	return kFALSE ;
	276	}
	277
	278	//____________________________________________________________________________
	279	AliPHOSDigit& AliPHOSDigit::operator+=(AliPHOSDigit const & digit)
	280	{
	281
	282	// Adds the amplitude of digits and completes the list of primary particles
	283	if(digit.fNprimary>0){
	284	Int_t *tmp = new Int_t[fNprimary+digit.fNprimary] ;
	285	if(fAmp < digit.fAmp \|\| fEnergy < digit.fEnergy){//most energetic primary in second digit => first primaries in list from second digit
	286	for (Int_t index = 0 ; index < digit.fNprimary ; index++)
	287	tmp[index]=(digit.fPrimary)[index] ;
	288	for (Int_t index = 0 ; index < fNprimary ; index++)
	289	tmp[index+digit.fNprimary]=fPrimary[index] ;
	290	}
	291	else{ //add new primaries to the end
	292	for (Int_t index = 0 ; index < fNprimary ; index++)
	293	tmp[index]=fPrimary[index] ;
	294	for (Int_t index = 0 ; index < digit.fNprimary ; index++)
	295	tmp[index+fNprimary]=(digit.fPrimary)[index] ;
	296	}
	297	if(fPrimary)
	298	delete []fPrimary ;
	299	fPrimary = tmp ;
	300	}
	301	fNprimary+=digit.fNprimary ;
	302	fAmp += digit.fAmp ;
	303	fEnergy += digit.fEnergy ;
	304	if(fTime > digit.fTime)
	305	fTime = digit.fTime ;
	306	fTimeR = fTime ;
	307
	308	// Add high-gain ALTRO samples
	309	UShort_t i;
	310	if (digit.fNSamplesHG > fNSamplesHG) {
	311	UShort_t newNSamplesHG = digit.fNSamplesHG;
	312	UShort_t *newSamplesHG = new UShort_t[newNSamplesHG];
	313	for (i=0; i<newNSamplesHG; i++) {
	314	if (i<fNSamplesHG)
	315	newSamplesHG[i] = TMath::Max(1023,fSamplesHG[i] + (digit.fSamplesHG)[i]);
	316	else
	317	newSamplesHG[i] = (digit.fSamplesHG)[i];
	318	}
	319	delete [] fSamplesHG;
	320	fSamplesHG = new UShort_t[newNSamplesHG];
	321	for (i=0; i<newNSamplesHG; i++) {
	322	fSamplesHG[i] = newSamplesHG[i];
	323	}
	324	delete [] newSamplesHG;
	325	}
	326	else {
	327	for (i=0; i<fNSamplesHG; i++)
	328	fSamplesHG[i] = TMath::Max(1023,fSamplesHG[i] + (digit.fSamplesHG)[i]);
	329	}
	330
	331	// Add low-gain ALTRO samples
	332	if (digit.fNSamplesLG > fNSamplesLG) {
	333	UShort_t newNSamplesLG = digit.fNSamplesLG;
	334	UShort_t *newSamplesLG = new UShort_t[newNSamplesLG];
	335	for (i=0; i<newNSamplesLG; i++) {
	336	if (i<fNSamplesLG)
	337	newSamplesLG[i] = TMath::Max(1023,fSamplesLG[i] + (digit.fSamplesLG)[i]);
	338	else
	339	newSamplesLG[i] = (digit.fSamplesLG)[i];
	340	}
	341	delete [] fSamplesLG;
	342	fSamplesLG = new UShort_t[newNSamplesLG];
	343	for (i=0; i<newNSamplesLG; i++) {
	344	fSamplesLG[i] = newSamplesLG[i];
	345	}
	346	delete [] newSamplesLG;
	347	}
	348	else {
	349	for (i=0; i<fNSamplesLG; i++)
	350	fSamplesLG[i] = TMath::Max(1023,fSamplesLG[i] + (digit.fSamplesLG)[i]);
	351	}
	352
	353	//If at least one digit in LG, then sum also
	354	fIsLG=fIsLG\|\|digit.fIsLG ;
	355
	356	return *this ;
	357	}
	358	//____________________________________________________________________________
	359	AliPHOSDigit& AliPHOSDigit::operator *= (Float_t factor)
	360	{
	361	// Multiplies the amplitude by a factor
	362
	363	Float_t tempo = static_cast<Float_t>(fAmp) ;
	364	tempo *= factor ;
	365	fAmp = static_cast<Int_t>(TMath::Ceil(tempo)) ;
	366	return *this ;
	367	}
	368
	369	//____________________________________________________________________________
	370	ostream& operator << ( ostream& out , const AliPHOSDigit & digit)
	371	{
	372	// Prints the data of the digit
	373
	374	// out << "ID " << digit.fId << " Energy = " << digit.fAmp << " Time = " << digit.fTime << endl ;
	375	// Int_t i ;
	376	// for(i=0;i<digit.fNprimary;i++)
	377	// out << "Primary " << i+1 << " = " << digit.fPrimary[i] << endl ;
	378	// out << "Position in list = " << digit.fIndexInList << endl ;
	379	digit.Warning("operator <<", "Implement differently") ;
	380	return out ;
	381	}
	382
	383