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 //_________________________________________________________________________
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!)
26 //*-- Author: Laurent Aphecetche & Yves Schutz (SUBATECH)
29 // --- ROOT system ---
31 // --- Standard library ---
35 // --- AliRoot header files ---
37 #include "AliPHOSDigit.h"
40 ClassImp(AliPHOSDigit)
42 //____________________________________________________________________________
43 AliPHOSDigit::AliPHOSDigit()
54 //____________________________________________________________________________
55 AliPHOSDigit::AliPHOSDigit(Int_t primary, Int_t id, Int_t DigEnergy, Int_t index)
61 fIndexInList = index ;
66 //____________________________________________________________________________
67 AliPHOSDigit::AliPHOSDigit(const AliPHOSDigit & digit)
73 fIndexInList = digit.fIndexInList ;
74 fNprimary = digit.fNprimary ;
75 fPrimary1 = digit.fPrimary1 ;
76 fPrimary2 = digit.fPrimary2 ;
77 fPrimary3 = digit.fPrimary3 ;
80 //____________________________________________________________________________
81 Int_t AliPHOSDigit::Compare(TObject * obj)
83 // Compares two digits with respect to its Id
84 // to sort according increasing Id
88 AliPHOSDigit * digit = (AliPHOSDigit *)obj ;
90 Int_t iddiff = fId - digit->GetId() ;
94 else if ( iddiff < 0 )
103 //____________________________________________________________________________
104 Int_t AliPHOSDigit::GetPrimary(Int_t index) const
106 // Returns the primary particle id index =1,2,3
110 cout << "AliPHOSDigit ERROR > only 3 primaries allowed" << endl ;
129 //____________________________________________________________________________
130 Bool_t AliPHOSDigit::operator==(AliPHOSDigit const & digit) const
132 // Two digits are equal if they have the same Id
134 if ( fId == digit.fId )
140 //____________________________________________________________________________
141 AliPHOSDigit& AliPHOSDigit::operator+(AliPHOSDigit const & digit)
143 // Adds the amplitude of digits and completes the list of primary particles
147 // Here comes something crummy ... but I do not know how to stream pointers
148 // because AliPHOSDigit is in a TCLonesArray
151 tempo1[0] = fPrimary1 ;
152 tempo1[1] = fPrimary2 ;
153 tempo1[2] = fPrimary3 ;
156 tempo2[0] = digit.fPrimary1 ;
157 tempo2[1] = digit.fPrimary2 ;
158 tempo2[2] = digit.fPrimary3 ;
160 Int_t max1 = fNprimary ;
161 Int_t max2 = digit.fNprimary ;
163 if ( fNprimary >= 3 ) {
164 cout << "AliPHOSDigit + operator ERROR > too many primaries, modify AliPHOSDigit" << endl ;
167 fNprimary += digit.fNprimary ;
168 if ( fNprimary > 3 ) {
169 cout << "AliPHOSDigit + operator ERROR > too many primaries, modify AliPHOSDigit" << endl ;
175 for (index = 0 ; index < 3 ; index++)
178 for (index = 0 ; index < max1 ; index++)
179 tempo3[index] = tempo1[index] ;
181 for (index = 0 ; index < max2 ; index++)
182 tempo3[index+max1] = tempo2[index] ;
184 fPrimary1 = tempo3[0] ;
185 fPrimary2 = tempo3[1] ;
186 fPrimary3 = tempo3[2] ;
189 // end of crummy stuff
194 //____________________________________________________________________________
195 ostream& operator << ( ostream& out , const AliPHOSDigit & digit)
197 // Prints the data of the digit
199 out << "ID " << digit.fId << " Energy = " << digit.fAmp << endl
200 << "Primary 1 = " << digit.fPrimary1 << endl
201 << "Primary 2 = " << digit.fPrimary2 << endl
202 << "Primary 3 = " << digit.fPrimary3 << endl
203 << "Position in list = " << digit.fIndexInList << endl ;