Made the typedef public
[u/mrichter/AliRoot.git] / PHOS / AliPHOSv1.cxx
CommitLineData
7587f5a5 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/* $Id$ */
7587f5a5 17//_________________________________________________________________________
bea63bea 18// Version of AliPHOSv0 which allows for keeping all hits in TreeH
b2a60966 19//
bea63bea 20//*-- Author: Gines MARTINEZ (SUBATECH)
b2a60966 21
7587f5a5 22
23// --- ROOT system ---
bea63bea 24
25#include "TBRIK.h"
26#include "TNode.h"
7587f5a5 27#include "TRandom.h"
28
29// --- Standard library ---
30
de9ec31b 31#include <stdio.h>
32#include <string.h>
33#include <stdlib.h>
34#include <strstream.h>
7587f5a5 35
36// --- AliRoot header files ---
37
38#include "AliPHOSv1.h"
39#include "AliPHOSHit.h"
40#include "AliPHOSDigit.h"
bea63bea 41#include "AliPHOSReconstructioner.h"
7587f5a5 42#include "AliRun.h"
43#include "AliConst.h"
44
45ClassImp(AliPHOSv1)
46
bea63bea 47//____________________________________________________________________________
48AliPHOSv1::AliPHOSv1()
49{
50 // default ctor
51 fNTmpHits = 0 ;
52 fTmpHits = 0 ;
53}
54
7587f5a5 55//____________________________________________________________________________
56AliPHOSv1::AliPHOSv1(const char *name, const char *title):
57 AliPHOSv0(name,title)
58{
bea63bea 59 // ctor
60 fHits= new TClonesArray("AliPHOSHit",1000) ;
7587f5a5 61}
b2a60966 62
7587f5a5 63//____________________________________________________________________________
bea63bea 64AliPHOSv1::~AliPHOSv1()
b2a60966 65{
bea63bea 66 // dtor
8dfa469d 67 if ( fTmpHits) {
68 fTmpHits->Delete() ;
69 delete fTmpHits ;
70 fTmpHits = 0 ;
71 }
72
73 if ( fEmcRecPoints ) {
74 fEmcRecPoints->Delete() ;
75 delete fEmcRecPoints ;
76 fEmcRecPoints = 0 ;
77 }
78
79 if ( fPpsdRecPoints ) {
80 fPpsdRecPoints->Delete() ;
81 delete fPpsdRecPoints ;
82 fPpsdRecPoints = 0 ;
83 }
bea63bea 84
8dfa469d 85 if ( fTrackSegments ) {
86 fTrackSegments->Delete() ;
87 delete fTrackSegments ;
88 fTrackSegments = 0 ;
89 }
7587f5a5 90}
91
7587f5a5 92//____________________________________________________________________________
bea63bea 93void AliPHOSv1::AddHit(Int_t shunt, Int_t primary, Int_t tracknumber, Int_t Id, Float_t * hits)
94{
95 // Add a hit to the hit list.
96 // In this version of AliPHOSv0, a PHOS hit is real geant
97 // hits in a single crystal or in a single PPSD gas cell
98
99 // cout << "Primary is " << primary << endl;
100 //cout << "Tracknumber is " << tracknumber << endl;
101 //cout << "Vol Id is " << Id << endl;
102 //cout << "hits is " << hits[0] << " " << hits[1] << " " << hits[2] << " " << hits[3] <<endl;
103
104 // cout << " Adding a hit number " << fNhits << endl ;
105
106 TClonesArray &ltmphits = *fHits ;
107 AliPHOSHit *newHit ;
108
109 // fHits->Print("");
110
111 newHit = new AliPHOSHit(shunt, primary, tracknumber, Id, hits) ;
112
113 // We DO want to save in TreeH the raw hits
114 // TClonesArray &lhits = *fHits;
115 // cout << " Adding a hit to fHits TCloneArray number " << fNhits << endl ;
116 new(ltmphits[fNhits]) AliPHOSHit(*newHit) ;
117 fNhits++ ;
118
119 // cout << " Added a hit to fHits TCloneArray number " << fNhits << endl ;
120 // We do not want to save in TreeH the raw hits
121 // new(lhits[fNhits]) AliPHOSHit(*newHit) ;
122 // fNhits++ ;
123
124 // Please note that the fTmpHits array must survive up to the
125 // end of the events, so it does not appear e.g. in ResetHits() (
126 // which is called at the end of each primary).
127
128 delete newHit;
129
130}
131
132
133
134
135//___________________________________________________________________________
136void AliPHOSv1::FinishEvent()
137{
138 // Makes the digits from the sum of summed hit in a single crystal or PPSD gas cell
139 // Adds to the energy the electronic noise
140 // Keeps digits with energy above fDigitThreshold
141
142 // Save the cumulated hits instead of raw hits (need to create the branch myself)
143 // It is put in the Digit Tree because the TreeH is filled after each primary
144 // and the TreeD at the end of the event.
145
146 Int_t i ;
147 Int_t relid[4];
148 Int_t j ;
149 TClonesArray &lDigits = *fDigits ;
150 AliPHOSHit * hit ;
151 AliPHOSDigit * newdigit ;
152 AliPHOSDigit * curdigit ;
153 Bool_t deja = kFALSE ;
154
155 for ( i = 0 ; i < fNhits ; i++ ) {
156 hit = (AliPHOSHit*)fHits->At(i) ;
157 newdigit = new AliPHOSDigit( hit->GetPrimary(), hit->GetId(), Digitize( hit->GetEnergy() ) ) ;
158 deja =kFALSE ;
159 for ( j = 0 ; j < fNdigits ; j++) {
160 curdigit = (AliPHOSDigit*) lDigits[j] ;
161 if ( *curdigit == *newdigit) {
162 *curdigit = *curdigit + *newdigit ;
163 deja = kTRUE ;
164 }
165 }
166 if ( !deja ) {
167 new(lDigits[fNdigits]) AliPHOSDigit(* newdigit) ;
168 fNdigits++ ;
169 }
170
171 delete newdigit ;
172 }
173
174 // Noise induced by the PIN diode of the PbWO crystals
175
176 Float_t energyandnoise ;
177 for ( i = 0 ; i < fNdigits ; i++ ) {
178 newdigit = (AliPHOSDigit * ) fDigits->At(i) ;
179 fGeom->AbsToRelNumbering(newdigit->GetId(), relid) ;
180
181 if (relid[1]==0){ // Digits belong to EMC (PbW0_4 crystals)
182 energyandnoise = newdigit->GetAmp() + Digitize(gRandom->Gaus(0., fPinElectronicNoise)) ;
183
184 if (energyandnoise < 0 )
185 energyandnoise = 0 ;
186
187 if ( newdigit->GetAmp() < fDigitThreshold ) // if threshold not surpassed, remove digit from list
188 fDigits->RemoveAt(i) ;
189 }
190 }
191
192 fDigits->Compress() ;
193
194 fNdigits = fDigits->GetEntries() ;
195 for (i = 0 ; i < fNdigits ; i++) {
196 newdigit = (AliPHOSDigit *) fDigits->At(i) ;
197 newdigit->SetIndexInList(i) ;
198 }
199
200}
201
7587f5a5 202void AliPHOSv1::StepManager(void)
203{
b2a60966 204 // Accumulates hits as long as the track stays in a single crystal or PPSD gas Cell
b2a60966 205
7587f5a5 206 Int_t relid[4] ; // (box, layer, row, column) indices
207 Float_t xyze[4] ; // position wrt MRS and energy deposited
208 TLorentzVector pos ;
bea63bea 209 Int_t copy ;
7587f5a5 210
bea63bea 211 Int_t tracknumber = gAlice->CurrentTrack() ;
212 Int_t primary = gAlice->GetPrimary( gAlice->CurrentTrack() );
457ebb6e 213
bea63bea 214 TString name = fGeom->GetName() ;
7587f5a5 215 if ( name == "GPS2" ) { // the CPV is a PPSD
b2a60966 216 if( gMC->CurrentVolID(copy) == gMC->VolId("GCEL") ) // We are inside a gas cell
7587f5a5 217 {
218 gMC->TrackPosition(pos) ;
219 xyze[0] = pos[0] ;
220 xyze[1] = pos[1] ;
221 xyze[2] = pos[2] ;
bea63bea 222 xyze[3] = gMC->Edep() ;
7587f5a5 223
224 if ( xyze[3] != 0 ) { // there is deposited energy
225 gMC->CurrentVolOffID(5, relid[0]) ; // get the PHOS Module number
226 gMC->CurrentVolOffID(3, relid[1]) ; // get the Micromegas Module number
227 // 1-> Geom->GetNumberOfModulesPhi() * fGeom->GetNumberOfModulesZ() upper
228 // > fGeom->GetNumberOfModulesPhi() * fGeom->GetNumberOfModulesZ() lower
229 gMC->CurrentVolOffID(1, relid[2]) ; // get the row number of the cell
230 gMC->CurrentVolID(relid[3]) ; // get the column number
231
232 // get the absolute Id number
233
234 Int_t absid ;
bea63bea 235 fGeom->RelToAbsNumbering(relid, absid) ;
7587f5a5 236
bea63bea 237 // add current hit to the hit list
238 AddHit(fIshunt, primary, tracknumber, absid, xyze);
7587f5a5 239
240 } // there is deposited energy
241 } // We are inside the gas of the CPV
242 } // GPS2 configuration
243
bea63bea 244 if(gMC->CurrentVolID(copy) == gMC->VolId("PXTL") ) // We are inside a PBWO crystal
7587f5a5 245 {
246 gMC->TrackPosition(pos) ;
247 xyze[0] = pos[0] ;
248 xyze[1] = pos[1] ;
249 xyze[2] = pos[2] ;
a333c916 250 xyze[3] = gMC->Edep() ;
7587f5a5 251
7587f5a5 252 if ( xyze[3] != 0 ) {
253 gMC->CurrentVolOffID(10, relid[0]) ; // get the PHOS module number ;
bea63bea 254 relid[1] = 0 ; // means PBW04
7587f5a5 255 gMC->CurrentVolOffID(4, relid[2]) ; // get the row number inside the module
256 gMC->CurrentVolOffID(3, relid[3]) ; // get the cell number inside the module
257
258 // get the absolute Id number
259
260 Int_t absid ;
bea63bea 261 fGeom->RelToAbsNumbering(relid, absid) ;
262
263 // add current hit to the hit list
264
265 AddHit(fIshunt, primary,tracknumber, absid, xyze);
7587f5a5 266
267 } // there is deposited energy
268 } // we are inside a PHOS Xtal
269}
270