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963d4d30 | 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 | //_________________________________________________________________________ | |
17 | // This is a TTask that constructs SDigits out of Hits | |
18 | // A Summable Digits is the sum of all hits in a cell | |
19 | // A threshold is applied | |
20 | // | |
21 | //-- Author: Alla Maevskaia(INR) | |
22 | ////////////////////////////////////////////////////////////////////////////// | |
23 | ||
24 | // --- ROOT system --- | |
25 | #include "TTask.h" | |
26 | #include "TTree.h" | |
27 | #include "TSystem.h" | |
28 | #include "TFile.h" | |
29 | // --- Standard library --- | |
30 | ||
31 | // --- AliRoot header files --- | |
32 | ||
33 | #include "AliFMDdigit.h" | |
34 | #include "AliFMDhit.h" | |
35 | #include "AliFMD.h" | |
36 | #include "AliFMDv1.h" | |
37 | #include "AliFMDSDigitizer.h" | |
38 | #include "AliRun.h" | |
39 | #include "AliDetector.h" | |
963d4d30 | 40 | |
37c55dc0 | 41 | #include "TFile.h" |
42 | #include "TTask.h" | |
43 | #include "TTree.h" | |
44 | #include "TSystem.h" | |
963d4d30 | 45 | #include "TROOT.h" |
46 | #include "TFolder.h" | |
47 | #include <stdlib.h> | |
93bdec82 | 48 | #include <Riostream.h> |
963d4d30 | 49 | |
50 | ClassImp(AliFMDSDigitizer) | |
51 | ||
963d4d30 | 52 | //____________________________________________________________________________ |
53 | AliFMDSDigitizer::AliFMDSDigitizer():TTask("AliFMDSDigitizer","") | |
54 | { | |
37c55dc0 | 55 | // ctor |
56 | fNevents = 0 ; | |
57 | fSDigits = 0 ; | |
58 | fHits = 0 ; | |
59 | ||
963d4d30 | 60 | } |
37c55dc0 | 61 | |
963d4d30 | 62 | //____________________________________________________________________________ |
37c55dc0 | 63 | AliFMDSDigitizer::AliFMDSDigitizer(char* HeaderFile,char *SdigitsFile ):TTask("AliFMDSDigitizer","") |
963d4d30 | 64 | { |
37c55dc0 | 65 | fNevents = 0 ; // Number of events to digitize, 0 means all evens in current file |
66 | // add Task to //root/Tasks folder | |
963d4d30 | 67 | TTask * roottasks = (TTask*)gROOT->GetRootFolder()->FindObject("Tasks") ; |
68 | roottasks->Add(this) ; | |
963d4d30 | 69 | } |
70 | ||
71 | //____________________________________________________________________________ | |
72 | AliFMDSDigitizer::~AliFMDSDigitizer() | |
73 | { | |
74 | // dtor | |
75 | } | |
76 | ||
37c55dc0 | 77 | //--------------------------------------------------------------------- |
78 | void AliFMDSDigitizer::SetRingsSi1(Int_t ringsSi1) | |
79 | { | |
80 | fRingsSi1=ringsSi1; | |
81 | } | |
82 | void AliFMDSDigitizer::SetSectorsSi1(Int_t sectorsSi1) | |
83 | { | |
84 | fSectorsSi1=sectorsSi1; | |
85 | } | |
86 | void AliFMDSDigitizer::SetRingsSi2(Int_t ringsSi2) | |
87 | { | |
88 | fRingsSi2=ringsSi2; | |
89 | } | |
90 | void AliFMDSDigitizer::SetSectorsSi2(Int_t sectorsSi2) | |
91 | { | |
92 | fSectorsSi2=sectorsSi2; | |
93 | } | |
963d4d30 | 94 | |
95 | //____________________________________________________________________________ | |
96 | void AliFMDSDigitizer::Exec(Option_t *option) { | |
963d4d30 | 97 | |
963d4d30 | 98 | |
963d4d30 | 99 | |
37c55dc0 | 100 | |
101 | Int_t NumberOfRings[5]= | |
102 | {fRingsSi1,fRingsSi2,fRingsSi1,fRingsSi2,fRingsSi1}; | |
103 | Int_t NumberOfSectors[5]= | |
104 | {fSectorsSi1,fSectorsSi2,fSectorsSi1,fSectorsSi2,fSectorsSi1}; | |
105 | ||
106 | // Initialise Hit array | |
107 | fHits = new TClonesArray ("AliFMDhit", 1000); | |
108 | fSDigits = new TClonesArray ("AliFMDdigit", 1000); | |
109 | ||
110 | AliFMD *FMD = (AliFMD *) gAlice->GetDetector ("FMD"); | |
111 | ||
112 | if (fNevents == 0) | |
113 | fNevents = (Int_t) gAlice->TreeE ()->GetEntries (); | |
114 | ||
115 | for (Int_t ievent = 0; ievent < fNevents; ievent++) | |
116 | { | |
117 | gAlice->GetEvent (ievent); | |
118 | if (gAlice->TreeH () == 0) | |
119 | return; | |
120 | if (gAlice->TreeS () == 0) | |
121 | gAlice->MakeTree ("S"); | |
122 | ||
123 | ||
124 | ||
963d4d30 | 125 | |
37c55dc0 | 126 | //Make branches |
127 | char branchname[20]; | |
128 | sprintf (branchname, "%s", FMD->GetName ()); | |
129 | //Make branch for digits | |
130 | FMD->MakeBranch ("S"); | |
131 | ||
132 | //Now made SDigits from hits, for PHOS it is the same | |
133 | Int_t volume, sector, ring, charge; | |
134 | Float_t e; | |
135 | Float_t de[10][50][150]; | |
136 | Int_t ivol, isec, iring; | |
137 | Int_t hit, nbytes; | |
138 | TParticle *particle; | |
139 | AliFMDhit *fmdHit; | |
140 | TClonesArray *FMDhits = FMD->Hits (); | |
141 | ||
142 | // Event ------------------------- LOOP | |
143 | ||
144 | for (ivol = 0; ivol < 10; ivol++) | |
145 | for (isec = 0; isec < 50; isec++) | |
146 | for (iring = 0; iring < 150; iring++) | |
147 | de[ivol][isec][iring] = 0; | |
148 | ||
149 | if (FMD) | |
150 | { | |
151 | FMDhits = FMD->Hits (); | |
152 | TTree *TH = gAlice->TreeH (); | |
153 | Stat_t ntracks = TH->GetEntries (); | |
154 | for (Int_t track = 0; track < ntracks; track++) | |
155 | { | |
156 | gAlice->ResetHits (); | |
157 | nbytes += TH->GetEvent (track); | |
158 | particle = gAlice->Particle (track); | |
159 | Int_t nhits = FMDhits->GetEntriesFast (); | |
160 | ||
161 | for (hit = 0; hit < nhits; hit++) | |
162 | { | |
163 | fmdHit = (AliFMDhit *) FMDhits->UncheckedAt (hit); | |
164 | ||
165 | volume = fmdHit->Volume (); | |
166 | sector = fmdHit->NumberOfSector (); | |
167 | ring = fmdHit->NumberOfRing (); | |
168 | e = fmdHit->Edep (); | |
169 | de[volume][sector][ring] += e; | |
170 | } //hit loop | |
171 | } //track loop | |
172 | } //if FMD | |
173 | ||
174 | ||
175 | Int_t digit[5]; | |
176 | Float_t I = 1.664 * 0.04 * 2.33 / 22400; // = 0.69e-6; | |
177 | for (ivol = 1; ivol < 6; ivol++) | |
178 | { | |
179 | for (isec = 1; isec <= NumberOfSectors[ivol-1]; isec++) | |
180 | { | |
181 | for (iring = 1; iring <= NumberOfRings[ivol-1]; iring++) | |
182 | { | |
183 | digit[0] = ivol; | |
184 | digit[1] = isec; | |
185 | digit[2] = iring; | |
186 | charge = Int_t (de[ivol][isec][iring] / I); | |
187 | ||
188 | digit[3] = charge; | |
189 | //dinamic diapason from MIP(0.155MeV) to 30MIP(4.65MeV) | |
190 | //1024 ADC channels | |
191 | Float_t channelWidth = (22400 * 30) / 1024; | |
192 | ||
193 | digit[4] = Int_t (digit[3] / channelWidth); | |
194 | FMD->AddSDigit(digit); | |
195 | ||
196 | } // iring loop | |
197 | } //sector loop | |
198 | } // volume loop | |
199 | ||
200 | gAlice->TreeS()->Reset(); | |
201 | gAlice->TreeS()->Fill(); | |
202 | gAlice->TreeS()->Write(0,TObject::kOverwrite) ; | |
203 | } //event loop | |
204 | ||
963d4d30 | 205 | |
206 | } | |
37c55dc0 | 207 | |
963d4d30 | 208 | //__________________________________________________________________ |
209 | void AliFMDSDigitizer::SetSDigitsFile(char * file ){ | |
210 | if(!fSDigitsFile.IsNull()) | |
211 | cout << "Changing SDigits file from " <<(char *)fSDigitsFile.Data() << " to " << file << endl ; | |
212 | fSDigitsFile=file ; | |
213 | } | |
214 | //__________________________________________________________________ | |
37c55dc0 | 215 | void AliFMDSDigitizer::Print(Option_t* option)const |
216 | { | |
963d4d30 | 217 | cout << "------------------- "<< GetName() << " -------------" << endl ; |
218 | if(fSDigitsFile.IsNull()) | |
219 | cout << " Writing SDigitis to file galice.root "<< endl ; | |
220 | else | |
221 | cout << " Writing SDigitis to file " << (char*) fSDigitsFile.Data() << endl ; | |
222 | ||
223 | } |