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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 | ||
17 | /* $Id$ */ | |
18 | ||
19 | //_________________________________________________________________________ | |
20 | // This is a TTask that makes SDigits out of Hits | |
21 | // The name of the TTask is also the title of the branch that will contain | |
22 | // the created SDigits | |
23 | // The title of the TTAsk is the name of the file that contains the hits from | |
24 | // which the SDigits are created | |
25 | // A Summable Digits is the sum of all hits originating | |
26 | // from one primary in one active cell | |
27 | // A threshold for assignment of the primary to SDigit is applied | |
28 | // SDigits are written to TreeS, branch "PHOS" | |
29 | // AliPHOSSDigitizer with all current parameters is written | |
30 | // to TreeS branch "AliPHOSSDigitizer". | |
31 | // Both branches have the same title. If necessary one can produce | |
32 | // another set of SDigits with different parameters. Two versions | |
33 | // can be distunguished using titles of the branches. | |
34 | // User case: | |
35 | // root [0] AliPHOSSDigitizer * s = new AliPHOSSDigitizer("galice.root") | |
36 | // Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated | |
37 | // root [1] s->ExecuteTask() | |
38 | // // Makes SDigitis for all events stored in galice.root | |
39 | // root [2] s->SetPedestalParameter(0.001) | |
40 | // // One can change parameters of digitization | |
41 | // root [3] s->SetSDigitsBranch("Pedestal 0.001") | |
42 | // // and write them into the new branch | |
43 | // root [4] s->ExecuteTask("deb all tim") | |
44 | // // available parameters: | |
45 | // deb - print # of produced SDigitis | |
46 | // deb all - print # and list of produced SDigits | |
47 | // tim - print benchmarking information | |
48 | // | |
49 | //*-- Author : Dmitri Peressounko (SUBATECH & KI) | |
50 | ////////////////////////////////////////////////////////////////////////////// | |
51 | ||
52 | ||
53 | // --- ROOT system --- | |
54 | #include "TBenchmark.h" | |
55 | #include "TRandom.h" | |
56 | ||
57 | // --- Standard library --- | |
58 | ||
59 | // --- AliRoot header files --- | |
60 | #include "AliPHOSGeometry.h" | |
61 | #include "AliPHOSDigit.h" | |
62 | #include "AliPHOSGetter.h" | |
63 | #include "AliPHOSHit.h" | |
64 | #include "AliPHOSSDigitizer.h" | |
65 | ||
66 | ClassImp(AliPHOSSDigitizer) | |
67 | ||
68 | ||
69 | //____________________________________________________________________________ | |
70 | AliPHOSSDigitizer::AliPHOSSDigitizer():TTask("","") | |
71 | { | |
72 | // ctor | |
73 | fFirstEvent = fLastEvent = 0 ; | |
74 | fDefaultInit = kTRUE ; | |
75 | } | |
76 | ||
77 | //____________________________________________________________________________ | |
78 | AliPHOSSDigitizer::AliPHOSSDigitizer(const char * alirunFileName, | |
79 | const char * eventFolderName): | |
80 | TTask("PHOS"+AliConfig::Instance()->GetSDigitizerTaskName(), alirunFileName), | |
81 | fEventFolderName(eventFolderName) | |
82 | { | |
83 | ||
84 | // ctor | |
85 | fFirstEvent = fLastEvent = 0 ; // runs one event by defaut | |
86 | InitParameters() ; | |
87 | Init(); | |
88 | fDefaultInit = kFALSE ; | |
89 | } | |
90 | ||
91 | //____________________________________________________________________________ | |
92 | AliPHOSSDigitizer::AliPHOSSDigitizer(const AliPHOSSDigitizer & sd) | |
93 | : TTask(sd) | |
94 | { | |
95 | //cpy ctor | |
96 | ||
97 | fFirstEvent = sd.fFirstEvent ; | |
98 | fLastEvent = sd.fLastEvent ; | |
99 | fA = sd.fA ; | |
100 | fB = sd.fB ; | |
101 | fPrimThreshold = sd.fPrimThreshold ; | |
102 | fSDigitsInRun = sd.fSDigitsInRun ; | |
103 | SetName(sd.GetName()) ; | |
104 | SetTitle(sd.GetTitle()) ; | |
105 | fEventFolderName = sd.fEventFolderName; | |
106 | } | |
107 | ||
108 | ||
109 | //____________________________________________________________________________ | |
110 | AliPHOSSDigitizer::~AliPHOSSDigitizer() { | |
111 | //dtor | |
112 | AliPHOSGetter * gime = | |
113 | AliPHOSGetter::Instance(GetTitle(),fEventFolderName.Data()); | |
114 | gime->PhosLoader()->CleanSDigitizer(); | |
115 | } | |
116 | //____________________________________________________________________________ | |
117 | void AliPHOSSDigitizer::Init() | |
118 | { | |
119 | // Uses the getter to access the required files | |
120 | ||
121 | fInit = kTRUE ; | |
122 | ||
123 | AliPHOSGetter * gime = AliPHOSGetter::Instance(GetTitle(), fEventFolderName.Data()); | |
124 | if ( gime == 0 ) { | |
125 | Fatal("Init" ,"Could not obtain the Getter object for file %s and event %s !", GetTitle(), fEventFolderName.Data()) ; | |
126 | return ; | |
127 | } | |
128 | ||
129 | TString opt("SDigits") ; | |
130 | if(gime->VersionExists(opt) ) { | |
131 | Error( "Init", "Give a version name different from %s", fEventFolderName.Data() ) ; | |
132 | fInit = kFALSE ; | |
133 | } | |
134 | ||
135 | gime->PostSDigitizer(this); | |
136 | gime->PhosLoader()->GetSDigitsDataLoader()->GetBaseTaskLoader()->SetDoNotReload(kTRUE); | |
137 | ||
138 | } | |
139 | ||
140 | //____________________________________________________________________________ | |
141 | void AliPHOSSDigitizer::InitParameters() | |
142 | { | |
143 | // initializes the parameters for digitization | |
144 | fA = 0; | |
145 | fB = 10000000.; | |
146 | fPrimThreshold = 0.01 ; | |
147 | fSDigitsInRun = 0 ; | |
148 | } | |
149 | ||
150 | //____________________________________________________________________________ | |
151 | void AliPHOSSDigitizer::Exec(Option_t *option) | |
152 | { | |
153 | // Steering method to produce summable digits for events | |
154 | // in the range from fFirstEvent to fLastEvent. | |
155 | // This range is optionally set by SetEventRange(). | |
156 | // if fLastEvent=-1 (by default), then process events until the end. | |
157 | // | |
158 | // Summable digit is a sum of all hits in the same active | |
159 | // volume into digit | |
160 | ||
161 | if (strstr(option, "print") ) { | |
162 | Print() ; | |
163 | return ; | |
164 | } | |
165 | ||
166 | if(strstr(option,"tim")) | |
167 | gBenchmark->Start("PHOSSDigitizer"); | |
168 | ||
169 | AliPHOSGetter * gime = AliPHOSGetter::Instance(GetTitle()) ; | |
170 | ||
171 | //switch off reloading of this task while getting event | |
172 | if (!fInit) { // to prevent overwrite existing file | |
173 | Error( "Exec", "Give a version name different from %s", fEventFolderName.Data() ) ; | |
174 | return ; | |
175 | } | |
176 | ||
177 | if (fLastEvent == -1) | |
178 | fLastEvent = gime->MaxEvent() - 1 ; | |
179 | else | |
180 | fLastEvent = TMath::Min(fFirstEvent, gime->MaxEvent()); // only ine event at the time | |
181 | Int_t nEvents = fLastEvent - fFirstEvent + 1; | |
182 | ||
183 | Int_t ievent ; | |
184 | for (ievent = fFirstEvent; ievent <= fLastEvent; ievent++) { | |
185 | gime->Event(ievent,"H") ; | |
186 | TTree * treeS = gime->TreeS(); | |
187 | TClonesArray * hits = gime->Hits() ; | |
188 | TClonesArray * sdigits = gime->SDigits() ; | |
189 | sdigits->Clear(); | |
190 | Int_t nSdigits = 0 ; | |
191 | //Now make SDigits from hits, for PHOS it is the same, so just copy | |
192 | Int_t nPrim = static_cast<Int_t>((gime->TreeH())->GetEntries()) ; | |
193 | // Attention nPrim is the number of primaries tracked by Geant | |
194 | // and this number could be different to the number of Primaries in TreeK; | |
195 | Int_t iprim ; | |
196 | ||
197 | for (iprim = 0 ; iprim < nPrim ; iprim ++) { | |
198 | //=========== Get the PHOS branch from Hits Tree for the Primary iprim | |
199 | gime->Track(iprim) ; | |
200 | Int_t i; | |
201 | for ( i = 0 ; i < hits->GetEntries() ; i++ ) { | |
202 | AliPHOSHit * hit = dynamic_cast<AliPHOSHit *>(hits->At(i)) ; | |
203 | // Assign primary number only if contribution is significant | |
204 | ||
205 | if( hit->GetEnergy() > fPrimThreshold) | |
206 | new((*sdigits)[nSdigits]) AliPHOSDigit(hit->GetPrimary(),hit->GetId(), | |
207 | Digitize(hit->GetEnergy()), hit->GetTime()) ; | |
208 | else | |
209 | new((*sdigits)[nSdigits]) AliPHOSDigit( -1 , hit->GetId(), | |
210 | Digitize(hit->GetEnergy()), hit->GetTime()) ; | |
211 | nSdigits++ ; | |
212 | ||
213 | } | |
214 | ||
215 | } // loop over iprim | |
216 | ||
217 | sdigits->Sort() ; | |
218 | ||
219 | nSdigits = sdigits->GetEntriesFast() ; | |
220 | ||
221 | fSDigitsInRun += nSdigits ; | |
222 | sdigits->Expand(nSdigits) ; | |
223 | ||
224 | Int_t i ; | |
225 | for (i = 0 ; i < nSdigits ; i++) { | |
226 | AliPHOSDigit * digit = dynamic_cast<AliPHOSDigit *>(sdigits->At(i)) ; | |
227 | digit->SetIndexInList(i) ; | |
228 | } | |
229 | ||
230 | //Now write SDigits | |
231 | ||
232 | ||
233 | //First list of sdigits | |
234 | ||
235 | Int_t bufferSize = 32000 ; | |
236 | TBranch * sdigitsBranch = treeS->Branch("PHOS",&sdigits,bufferSize); | |
237 | ||
238 | sdigitsBranch->Fill() ; | |
239 | ||
240 | gime->WriteSDigits("OVERWRITE"); | |
241 | ||
242 | //Next - SDigitizer | |
243 | ||
244 | gime->WriteSDigitizer("OVERWRITE"); | |
245 | ||
246 | if(strstr(option,"deb")) | |
247 | PrintSDigits(option) ; | |
248 | } | |
249 | ||
250 | Unload(); | |
251 | ||
252 | gime->PhosLoader()->GetSDigitsDataLoader()->GetBaseTaskLoader()->SetDoNotReload(kTRUE); | |
253 | ||
254 | if(strstr(option,"tim")){ | |
255 | gBenchmark->Stop("PHOSSDigitizer"); | |
256 | Info("Exec"," took %f seconds for SDigitizing %f seconds per event", | |
257 | gBenchmark->GetCpuTime("PHOSSDigitizer"), gBenchmark->GetCpuTime("PHOSSDigitizer")/nEvents) ; | |
258 | } | |
259 | } | |
260 | ||
261 | //__________________________________________________________________ | |
262 | void AliPHOSSDigitizer::Print()const | |
263 | { | |
264 | // Prints parameters of SDigitizer | |
265 | Info("Print", "\n------------------- %s -------------", GetName() ) ; | |
266 | printf(" Writing SDigits to branch with title %s\n", fEventFolderName.Data()) ; | |
267 | printf(" with digitization parameters A = %f\n", fA) ; | |
268 | printf(" B = %f\n", fB) ; | |
269 | printf(" Threshold for Primary assignment= %f\n", fPrimThreshold) ; | |
270 | printf("---------------------------------------------------\n") ; | |
271 | ||
272 | } | |
273 | ||
274 | //__________________________________________________________________ | |
275 | Bool_t AliPHOSSDigitizer::operator==( AliPHOSSDigitizer const &sd )const | |
276 | { | |
277 | // Equal operator. | |
278 | // SDititizers are equal if their pedestal, slope and threshold are equal | |
279 | ||
280 | if( (fA==sd.fA)&&(fB==sd.fB)&&(fPrimThreshold==sd.fPrimThreshold)) | |
281 | return kTRUE ; | |
282 | else | |
283 | return kFALSE ; | |
284 | } | |
285 | ||
286 | //__________________________________________________________________ | |
287 | void AliPHOSSDigitizer::PrintSDigits(Option_t * option) | |
288 | { | |
289 | // Prints list of digits produced in the current pass of AliPHOSDigitizer | |
290 | ||
291 | ||
292 | AliPHOSGetter * gime = AliPHOSGetter::Instance() ; | |
293 | const TClonesArray * sdigits = gime->SDigits() ; | |
294 | ||
295 | Info( "\nPrintSDigits", "event # %d %d sdigits", gAlice->GetEvNumber(), sdigits->GetEntriesFast() ) ; | |
296 | ||
297 | if(strstr(option,"all")||strstr(option,"EMC")){ | |
298 | ||
299 | //loop over digits | |
300 | AliPHOSDigit * digit; | |
301 | printf("\nEMC sdigits\n") ; | |
302 | Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ; | |
303 | Int_t index ; | |
304 | for (index = 0 ; (index < sdigits->GetEntriesFast()) && | |
305 | ((dynamic_cast<AliPHOSDigit *> (sdigits->At(index)))->GetId() <= maxEmc) ; index++) { | |
306 | digit = dynamic_cast<AliPHOSDigit *>( sdigits->At(index) ) ; | |
307 | // if(digit->GetNprimary() == 0) | |
308 | // continue; | |
309 | printf("%6d %8d %6.5e %4d %2d :\n", | |
310 | digit->GetId(), digit->GetAmp(), digit->GetTime(), digit->GetIndexInList(), digit->GetNprimary()) ; | |
311 | Int_t iprimary; | |
312 | for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++) { | |
313 | printf("%d ",digit->GetPrimary(iprimary+1) ) ; | |
314 | } | |
315 | } | |
316 | } | |
317 | ||
318 | if(strstr(option,"all")||strstr(option,"CPV")){ | |
319 | ||
320 | //loop over CPV digits | |
321 | AliPHOSDigit * digit; | |
322 | printf("\nCPV sdigits\n") ; | |
323 | Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ; | |
324 | Int_t index ; | |
325 | for (index = 0 ; index < sdigits->GetEntriesFast(); index++) { | |
326 | digit = dynamic_cast<AliPHOSDigit *>( sdigits->At(index) ) ; | |
327 | if(digit->GetId() > maxEmc){ | |
328 | printf("\n%6d %8d %4d %2d :", | |
329 | digit->GetId(), digit->GetAmp(), digit->GetIndexInList(), digit->GetNprimary()) ; | |
330 | Int_t iprimary; | |
331 | for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++) { | |
332 | printf("%d ",digit->GetPrimary(iprimary+1) ) ; | |
333 | } | |
334 | } | |
335 | } | |
336 | } | |
337 | } | |
338 | ||
339 | //____________________________________________________________________________ | |
340 | void AliPHOSSDigitizer::Unload() const | |
341 | { | |
342 | // Unloads the objects from the folder | |
343 | AliPHOSGetter * gime = AliPHOSGetter::Instance() ; | |
344 | AliPHOSLoader * loader = gime->PhosLoader() ; | |
345 | loader->UnloadHits() ; | |
346 | loader->UnloadSDigits() ; | |
347 | } |