parameters have been redistributed; Hits2SDigits etc ... introduce
[u/mrichter/AliRoot.git] / PHOS / AliPHOSDigit.cxx
CommitLineData
d15a28e7 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
b2a60966 16/* $Id$ */
17
d15a28e7 18//_________________________________________________________________________
b2a60966 19// PHOS 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 PHOS 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
d15a28e7 28
29// --- ROOT system ---
30
31// --- Standard library ---
32
de9ec31b 33#include <iostream.h>
d15a28e7 34
35// --- AliRoot header files ---
36
37#include "AliPHOSDigit.h"
38
39
40ClassImp(AliPHOSDigit)
41
cf239357 42//____________________________________________________________________________
f741ce93 43 AliPHOSDigit::AliPHOSDigit()
cf239357 44{
b2a60966 45 // default ctor
46
83974468 47 fIndexInList = -1 ;
48 fNprimary = 0 ;
366c5d6f 49 fNMaxPrimary = 5 ;
cf239357 50}
51
d15a28e7 52//____________________________________________________________________________
83974468 53AliPHOSDigit::AliPHOSDigit(Int_t primary, Int_t id, Int_t DigEnergy, Int_t index)
d15a28e7 54{
b2a60966 55 // ctor with all data
56
2e5c3041 57 fNMaxPrimary = 5 ;
83974468 58 fAmp = DigEnergy ;
59 fId = id ;
60 fIndexInList = index ;
4a2ca5e9 61 if( primary != -1){
62 fNprimary = 1 ;
366c5d6f 63 fPrimary[0] = primary ;
4a2ca5e9 64 }
65 else{ //If the contribution of this primary smaller than fDigitThreshold (AliPHOSv1)
66 fNprimary = 0 ;
366c5d6f 67 fPrimary[0] = -1 ;
4a2ca5e9 68 }
366c5d6f 69 Int_t i ;
70 for ( i = 1; i < fNMaxPrimary ; i++)
71 fPrimary[i] = -1 ;
cf239357 72}
73
74//____________________________________________________________________________
75AliPHOSDigit::AliPHOSDigit(const AliPHOSDigit & digit)
b2a60966 76{
77 // copy ctor
78
36d93c12 79
80 fNMaxPrimary = digit.fNMaxPrimary ;
81 Int_t i ;
82 for ( i = 0; i < fNMaxPrimary ; i++)
83 fPrimary[i] = digit.fPrimary[i] ;
83974468 84 fAmp = digit.fAmp ;
85 fId = digit.fId;
86 fIndexInList = digit.fIndexInList ;
87 fNprimary = digit.fNprimary ;
ff4c968a 88}
89
2e5c3041 90//____________________________________________________________________________
36d93c12 91AliPHOSDigit::~AliPHOSDigit()
2e5c3041 92{
93 // Delete array of primiries if any
36d93c12 94
2e5c3041 95}
96
d15a28e7 97//____________________________________________________________________________
037cc66d 98Int_t AliPHOSDigit::Compare(const TObject * obj) const
d15a28e7 99{
b2a60966 100 // Compares two digits with respect to its Id
101 // to sort according increasing Id
102
88714635 103 Int_t rv ;
cf239357 104
105 AliPHOSDigit * digit = (AliPHOSDigit *)obj ;
106
107 Int_t iddiff = fId - digit->GetId() ;
108
109 if ( iddiff > 0 )
110 rv = 1 ;
111 else if ( iddiff < 0 )
112 rv = -1 ;
113 else
114 rv = 0 ;
115
116 return rv ;
117
118}
26d4b141 119
120//____________________________________________________________________________
121Int_t AliPHOSDigit::GetPrimary(Int_t index) const
122{
2f04ed65 123 // retrieves the primary particle number given its index in the list
36d93c12 124 Int_t rv = -1 ;
125 if ( index <= fNprimary ){
126 rv = fPrimary[index-1] ;
127 }
26d4b141 128
129 return rv ;
366c5d6f 130
26d4b141 131}
132
cf239357 133//____________________________________________________________________________
134Bool_t AliPHOSDigit::operator==(AliPHOSDigit const & digit) const
135{
b2a60966 136 // Two digits are equal if they have the same Id
137
cf239357 138 if ( fId == digit.fId )
d15a28e7 139 return kTRUE ;
140 else
141 return kFALSE ;
142}
cf239357 143
d15a28e7 144//____________________________________________________________________________
cf239357 145AliPHOSDigit& AliPHOSDigit::operator+(AliPHOSDigit const & digit)
d15a28e7 146{
b2a60966 147 // Adds the amplitude of digits and completes the list of primary particles
4a2ca5e9 148 // if amplitude is larger than
36d93c12 149
cf239357 150 fAmp += digit.fAmp ;
36d93c12 151
f741ce93 152 Int_t max1 = fNprimary ;
153 Int_t max2 = digit.fNprimary ;
36d93c12 154
155 if ( fNprimary + digit.fNprimary < fNMaxPrimary ) {
f741ce93 156 fNprimary += digit.fNprimary ;
36d93c12 157
f741ce93 158 Int_t index ;
f741ce93 159 for (index = 0 ; index < max2 ; index++)
366c5d6f 160 fPrimary[index+max1] = (digit.fPrimary)[index] ;
f741ce93 161 }
36d93c12 162 else{
163 cout << "AliPHOSDigit >> Increase NMaxPrimary"<< endl ;
164 Int_t index ;
165 for (index = max1; index < fNMaxPrimary ; index++)
166 fPrimary[index] = (digit.fPrimary)[index-max1] ;
167 fNprimary = fNMaxPrimary ;
168 }
d15a28e7 169 return *this ;
170}
171
172//____________________________________________________________________________
cf239357 173ostream& operator << ( ostream& out , const AliPHOSDigit & digit)
d15a28e7 174{
b2a60966 175 // Prints the data of the digit
176
36d93c12 177 out << "ID " << digit.fId << " Energy = " << digit.fAmp << endl ;
178 Int_t i ;
179 for(i=0;i<digit.fNprimary;i++)
180 out << "Primary " << i+1 << " = " << digit.fPrimary[i] << endl ;
181 out << "Position in list = " << digit.fIndexInList << endl ;
d15a28e7 182 return out ;
183}
184
cf239357 185