Corrections to comply with coding convention
[u/mrichter/AliRoot.git] / PHOS / AliPHOSDigit.cxx
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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//_________________________________________________________________________
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
28
29// --- ROOT system ---
30
31// --- Standard library ---
32
33#include <iostream.h>
34
35// --- AliRoot header files ---
36
37#include "AliPHOSDigit.h"
38
39
40ClassImp(AliPHOSDigit)
41
42//____________________________________________________________________________
43 AliPHOSDigit::AliPHOSDigit()
44{
45 // default ctor
46
47 fIndexInList = -1 ;
48 fNprimary = 0 ;
49 fPrimary1 = -1 ;
50 fPrimary2 = -1 ;
51 fPrimary3 = -1 ;
52}
53
54//____________________________________________________________________________
55AliPHOSDigit::AliPHOSDigit(Int_t primary, Int_t id, Int_t DigEnergy, Int_t index)
56{
57 // ctor with all data
58
59 fAmp = DigEnergy ;
60 fId = id ;
61 fIndexInList = index ;
62 fPrimary1 = primary ;
63 fNprimary = 1 ;
64 fPrimary2 = -1 ;
65 fPrimary3 = -1 ;
66}
67
68//____________________________________________________________________________
69AliPHOSDigit::AliPHOSDigit(const AliPHOSDigit & digit)
70{
71 // copy ctor
72
73 fAmp = digit.fAmp ;
74 fId = digit.fId;
75 fIndexInList = digit.fIndexInList ;
76 fNprimary = digit.fNprimary ;
77 fPrimary1 = digit.fPrimary1 ;
78 fPrimary2 = digit.fPrimary2 ;
79 fPrimary3 = digit.fPrimary3 ;
80}
81
82//____________________________________________________________________________
83Int_t AliPHOSDigit::Compare(TObject * obj)
84{
85 // Compares two digits with respect to its Id
86 // to sort according increasing Id
87
88 Int_t rv ;
89
90 AliPHOSDigit * digit = (AliPHOSDigit *)obj ;
91
92 Int_t iddiff = fId - digit->GetId() ;
93
94 if ( iddiff > 0 )
95 rv = 1 ;
96 else if ( iddiff < 0 )
97 rv = -1 ;
98 else
99 rv = 0 ;
100
101 return rv ;
102
103}
104
105//____________________________________________________________________________
106Int_t AliPHOSDigit::GetPrimary(Int_t index) const
107{
108 // Returns the primary particle id index =1,2,3
109
110 Int_t rv = -1 ;
111 if ( index > 3 )
112 cout << "AliPHOSDigit ERROR > only 3 primaries allowed" << endl ;
113 else {
114 switch (index) {
115 case 1 :
116 rv = fPrimary1 ;
117 break ;
118 case 2 :
119 rv = fPrimary2 ;
120 break ;
121 case 3 :
122 rv = fPrimary3 ;
123 break ;
124 }
125 }
126
127 return rv ;
128
129}
130
131//____________________________________________________________________________
132Bool_t AliPHOSDigit::operator==(AliPHOSDigit const & digit) const
133{
134 // Two digits are equal if they have the same Id
135
136 if ( fId == digit.fId )
137 return kTRUE ;
138 else
139 return kFALSE ;
140}
141
142//____________________________________________________________________________
143AliPHOSDigit& AliPHOSDigit::operator+(AliPHOSDigit const & digit)
144{
145 // Adds the amplitude of digits and completes the list of primary particles
146
147 fAmp += digit.fAmp ;
148
149 // Here comes something crummy ... but I do not know how to stream pointers
150 // because AliPHOSDigit is in a TCLonesArray
151
152 Int_t tempo1[3] ;
153 tempo1[0] = fPrimary1 ;
154 tempo1[1] = fPrimary2 ;
155 tempo1[2] = fPrimary3 ;
156
157 Int_t tempo2[3] ;
158 tempo2[0] = digit.fPrimary1 ;
159 tempo2[1] = digit.fPrimary2 ;
160 tempo2[2] = digit.fPrimary3 ;
161
162 Int_t max1 = fNprimary ;
163 Int_t max2 = digit.fNprimary ;
164
165 if ( fNprimary >= 3 ) {
166 cout << "AliPHOSDigit + operator ERROR > too many primaries, modify AliPHOSDigit" << endl ;
167 }
168 else {
169 fNprimary += digit.fNprimary ;
170 if ( fNprimary > 3 ) {
171 cout << "AliPHOSDigit + operator ERROR > too many primaries, modify AliPHOSDigit" << endl ;
172 fNprimary = 3 ;
173 }
174
175 Int_t tempo3[3] ;
176 Int_t index ;
177 for (index = 0 ; index < 3 ; index++)
178 tempo3[index] = 0 ;
179
180 for (index = 0 ; index < max1 ; index++)
181 tempo3[index] = tempo1[index] ;
182
183 for (index = 0 ; index < max2 ; index++)
184 tempo3[index+max1] = tempo2[index] ;
185
186 fPrimary1 = tempo3[0] ;
187 fPrimary2 = tempo3[1] ;
188 fPrimary3 = tempo3[2] ;
189
190 }
191 // end of crummy stuff
192
193 return *this ;
194}
195
196//____________________________________________________________________________
197ostream& operator << ( ostream& out , const AliPHOSDigit & digit)
198{
199 // Prints the data of the digit
200
201 out << "ID " << digit.fId << " Energy = " << digit.fAmp << endl
202 << "Primary 1 = " << digit.fPrimary1 << endl
203 << "Primary 2 = " << digit.fPrimary2 << endl
204 << "Primary 3 = " << digit.fPrimary3 << endl
205 << "Position in list = " << digit.fIndexInList << endl ;
206 return out ;
207}
208
209