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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 | // This is a TTask that makes SDigits out of Hits | |
20 | // The name of the TTask is also the title of the branch that will contain | |
21 | // the created SDigits | |
22 | // The title of the TTAsk is the name of the file that contains the hits from | |
23 | // which the SDigits are created | |
24 | // A Summable Digits is the sum of all hits originating | |
25 | // from one primary in one active cell | |
26 | // A threshold for assignment of the primary to SDigit is applied | |
27 | // SDigits are written to TreeS, branch "PHOS" | |
28 | // AliPHOSSDigitizer with all current parameters is written | |
29 | // to TreeS branch "AliPHOSSDigitizer". | |
30 | // Both branches have the same title. If necessary one can produce | |
31 | // another set of SDigits with different parameters. Two versions | |
32 | // can be distunguished using titles of the branches. | |
33 | // User case: | |
34 | // root [0] AliPHOSSDigitizer * s = new AliPHOSSDigitizer("galice.root") | |
35 | // Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated | |
36 | // root [1] s->ExecuteTask() | |
37 | // // Makes SDigitis for all events stored in galice.root | |
38 | // root [2] s->SetPedestalParameter(0.001) | |
39 | // // One can change parameters of digitization | |
40 | // root [3] s->SetSDigitsBranch("Pedestal 0.001") | |
41 | // // and write them into the new branch | |
42 | // root [4] s->ExecuteTask("deb all tim") | |
43 | // // available parameters: | |
44 | // deb - print # of produced SDigitis | |
45 | // deb all - print # and list of produced SDigits | |
46 | // tim - print benchmarking information | |
47 | // | |
48 | //*-- Author : Dmitri Peressounko (SUBATECH & KI) | |
49 | ////////////////////////////////////////////////////////////////////////////// | |
50 | ||
51 | ||
52 | // --- ROOT system --- | |
53 | #include "TFile.h" | |
54 | #include "TTask.h" | |
55 | #include "TTree.h" | |
56 | #include "TSystem.h" | |
57 | #include "TROOT.h" | |
58 | #include "TFolder.h" | |
59 | #include "TBenchmark.h" | |
60 | // --- Standard library --- | |
61 | #include <iomanip.h> | |
62 | ||
63 | // --- AliRoot header files --- | |
64 | #include "AliRun.h" | |
65 | #include "AliPHOSDigit.h" | |
66 | #include "AliPHOSGeometry.h" | |
67 | #include "AliPHOSGetter.h" | |
68 | #include "AliPHOSHit.h" | |
69 | #include "AliPHOSSDigitizer.h" | |
70 | ||
71 | ||
72 | ClassImp(AliPHOSSDigitizer) | |
73 | ||
74 | ||
75 | //____________________________________________________________________________ | |
76 | AliPHOSSDigitizer::AliPHOSSDigitizer():TTask("","") | |
77 | { | |
78 | // ctor | |
79 | fA = 0; | |
80 | fB = 10000000.; | |
81 | fPrimThreshold = 0.01 ; | |
82 | fSDigitsInRun = 0 ; | |
83 | } | |
84 | ||
85 | //____________________________________________________________________________ | |
86 | AliPHOSSDigitizer::AliPHOSSDigitizer(const char * headerFile, const char * sDigitsTitle):TTask(sDigitsTitle, headerFile) | |
87 | { | |
88 | // ctor | |
89 | fA = 0; | |
90 | fB = 10000000.; | |
91 | fPrimThreshold = 0.01 ; | |
92 | fSDigitsInRun = 0 ; | |
93 | Init(); | |
94 | } | |
95 | ||
96 | ||
97 | //____________________________________________________________________________ | |
98 | void AliPHOSSDigitizer::Init() | |
99 | { | |
100 | // Initialization: open root-file, allocate arrays for hits and sdigits, | |
101 | // attach task SDigitizer to the list of PHOS tasks | |
102 | // | |
103 | // Initialization can not be done in the default constructor | |
104 | //============================================================= YS | |
105 | // The initialisation is now done by AliPHOSGetter | |
106 | ||
107 | if( strcmp(GetTitle(), "") == 0 ) | |
108 | SetTitle("galice.root") ; | |
109 | ||
110 | AliPHOSGetter * gime = AliPHOSGetter::GetInstance(GetTitle(), GetName()) ; | |
111 | if ( gime == 0 ) { | |
112 | cerr << "ERROR: AliPHOSSDigitizer::Init -> Could not obtain the Getter object !" << endl ; | |
113 | return ; | |
114 | } | |
115 | ||
116 | gime->PostSDigits( GetName(), GetTitle() ) ; | |
117 | ||
118 | TString sdname(GetName() ); | |
119 | sdname.Append(":") ; | |
120 | sdname.Append(GetTitle() ) ; | |
121 | SetName(sdname) ; | |
122 | gime->PostSDigitizer(this) ; | |
123 | ||
124 | } | |
125 | ||
126 | //____________________________________________________________________________ | |
127 | void AliPHOSSDigitizer::Exec(Option_t *option) | |
128 | { | |
129 | // Collects all hits in the same active volume into digit | |
130 | if( strcmp(GetName(), "") == 0 ) | |
131 | Init() ; | |
132 | ||
133 | if (strstr(option, "print") ) { | |
134 | Print("") ; | |
135 | return ; | |
136 | } | |
137 | ||
138 | if(strstr(option,"tim")) | |
139 | gBenchmark->Start("PHOSSDigitizer"); | |
140 | ||
141 | //Check, if this branch already exits | |
142 | gAlice->GetEvent(0) ; | |
143 | ||
144 | TString sdname(GetName()) ; | |
145 | sdname.Remove(sdname.Index(GetTitle())-1) ; | |
146 | ||
147 | if(gAlice->TreeS() ) { | |
148 | TObjArray * lob = static_cast<TObjArray*>(gAlice->TreeS()->GetListOfBranches()) ; | |
149 | TIter next(lob) ; | |
150 | TBranch * branch = 0 ; | |
151 | Bool_t phosfound = kFALSE, sdigitizerfound = kFALSE ; | |
152 | ||
153 | while ( (branch = (static_cast<TBranch*>(next()))) && (!phosfound || !sdigitizerfound) ) { | |
154 | if ( (strcmp(branch->GetName(), "PHOS")==0) && (strcmp(branch->GetTitle(), GetName())==0) ) | |
155 | phosfound = kTRUE ; | |
156 | ||
157 | else if ( (strcmp(branch->GetName(), "AliPHOSSDigitizer")==0) && (strcmp(branch->GetTitle(), GetName())==0) ) | |
158 | sdigitizerfound = kTRUE ; | |
159 | } | |
160 | ||
161 | if ( phosfound || sdigitizerfound ) { | |
162 | cerr << "WARNING: AliPHOSSDigitizer::Exec -> SDigits and/or SDigitizer branch with name " << GetName() | |
163 | << " already exits" << endl ; | |
164 | return ; | |
165 | } | |
166 | } | |
167 | ||
168 | AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ; | |
169 | ||
170 | Int_t nevents = (Int_t) gAlice->TreeE()->GetEntries() ; | |
171 | ||
172 | Int_t ievent ; | |
173 | for(ievent = 0; ievent < nevents; ievent++){ | |
174 | gime->Event(ievent,"H") ; | |
175 | const TClonesArray * hits = gime->Hits() ; | |
176 | TClonesArray * sdigits = gime->SDigits(sdname.Data()) ; | |
177 | sdigits->Clear(); | |
178 | Int_t nSdigits = 0 ; | |
179 | ||
180 | ||
181 | //Now make SDigits from hits, for PHOS it is the same, so just copy | |
182 | ||
183 | //******************** CHECK HERE | |
184 | //YS DOES NOT UNDERSTAND THE NEED FOR THE FOLLOWING LOOP | |
185 | // Int_t itrack ; | |
186 | // for (itrack=0; itrack < gAlice->GetNtrack(); itrack++){ | |
187 | // //=========== Get the PHOS branch from Hits Tree for the Primary track itrack | |
188 | // gime->Track(itrack) ; | |
189 | Int_t i; | |
190 | for ( i = 0 ; i < hits->GetEntries() ; i++ ) { | |
191 | AliPHOSHit * hit = dynamic_cast<AliPHOSHit *>(hits->At(i)) ; | |
192 | // Assign primary number only if contribution is significant | |
193 | ||
194 | if( hit->GetEnergy() > fPrimThreshold) | |
195 | new((*sdigits)[nSdigits]) AliPHOSDigit(hit->GetPrimary(),hit->GetId(), | |
196 | Digitize(hit->GetEnergy()), hit->GetTime()) ; | |
197 | else | |
198 | new((*sdigits)[nSdigits]) AliPHOSDigit( -1 , hit->GetId(), | |
199 | Digitize(hit->GetEnergy()), hit->GetTime()) ; | |
200 | nSdigits++ ; | |
201 | ||
202 | } | |
203 | // } // loop over tracks | |
204 | ||
205 | sdigits->Sort() ; | |
206 | ||
207 | nSdigits = sdigits->GetEntriesFast() ; | |
208 | fSDigitsInRun += nSdigits ; | |
209 | sdigits->Expand(nSdigits) ; | |
210 | // Int_t i ; | |
211 | for (i = 0 ; i < nSdigits ; i++) { | |
212 | AliPHOSDigit * digit = dynamic_cast<AliPHOSDigit *>(sdigits->At(i)) ; | |
213 | digit->SetIndexInList(i) ; | |
214 | } | |
215 | ||
216 | if(gAlice->TreeS() == 0) | |
217 | gAlice->MakeTree("S") ; | |
218 | ||
219 | //Make (if necessary) branches | |
220 | char * file =0; | |
221 | if(gSystem->Getenv("CONFIG_SPLIT_FILE")){ //generating file name | |
222 | file = new char[strlen(gAlice->GetBaseFile())+20] ; | |
223 | sprintf(file,"%s/PHOS.SDigits.root",gAlice->GetBaseFile()) ; | |
224 | } | |
225 | ||
226 | TDirectory *cwd = gDirectory; | |
227 | ||
228 | //First list of sdigits | |
229 | Int_t bufferSize = 32000 ; | |
230 | TBranch * sdigitsBranch = gAlice->TreeS()->Branch("PHOS",&sdigits,bufferSize); | |
231 | sdigitsBranch->SetTitle(sdname); | |
232 | if (file) { | |
233 | sdigitsBranch->SetFile(file); | |
234 | TIter next( sdigitsBranch->GetListOfBranches()); | |
235 | TBranch * subbr; | |
236 | while ((subbr=static_cast<TBranch*>(next()))) { | |
237 | subbr->SetFile(file); | |
238 | } | |
239 | cwd->cd(); | |
240 | } | |
241 | ||
242 | //Next - SDigitizer | |
243 | Int_t splitlevel = 0 ; | |
244 | AliPHOSSDigitizer * sd = this ; | |
245 | TBranch * sdigitizerBranch = gAlice->TreeS()->Branch("AliPHOSSDigitizer","AliPHOSSDigitizer", | |
246 | &sd,bufferSize,splitlevel); | |
247 | sdigitizerBranch->SetTitle(sdname); | |
248 | if (file) { | |
249 | sdigitizerBranch->SetFile(file); | |
250 | TIter next( sdigitizerBranch->GetListOfBranches()); | |
251 | TBranch * subbr ; | |
252 | while ((subbr=static_cast<TBranch*>(next()))) { | |
253 | subbr->SetFile(file); | |
254 | } | |
255 | cwd->cd(); | |
256 | delete [] file; | |
257 | } | |
258 | ||
259 | sdigitsBranch->Fill() ; | |
260 | gAlice->TreeS()->AutoSave() ; | |
261 | ||
262 | if(strstr(option,"deb")) | |
263 | PrintSDigits(option) ; | |
264 | ||
265 | } | |
266 | ||
267 | if(strstr(option,"tim")){ | |
268 | gBenchmark->Stop("PHOSSDigitizer"); | |
269 | cout << "AliPHOSSDigitizer:" << endl ; | |
270 | cout << " took " << gBenchmark->GetCpuTime("PHOSSDigitizer") << " seconds for SDigitizing " | |
271 | << gBenchmark->GetCpuTime("PHOSSDigitizer")/nevents << " seconds per event " << endl ; | |
272 | cout << endl ; | |
273 | } | |
274 | ||
275 | ||
276 | } | |
277 | //__________________________________________________________________ | |
278 | void AliPHOSSDigitizer::SetSDigitsBranch(const char * title ) | |
279 | { | |
280 | // Setting title to branch SDigits | |
281 | ||
282 | TString stitle(title) ; | |
283 | ||
284 | // check if branch with title already exists | |
285 | TBranch * sdigitsBranch = | |
286 | static_cast<TBranch*>(gAlice->TreeS()->GetListOfBranches()->FindObject("PHOS")) ; | |
287 | TBranch * sdigitizerBranch = | |
288 | static_cast<TBranch*>(gAlice->TreeS()->GetListOfBranches()->FindObject("AliPHOSSDigitizer")) ; | |
289 | const char * sdigitsTitle = sdigitsBranch ->GetTitle() ; | |
290 | const char * sdigitizerTitle = sdigitizerBranch ->GetTitle() ; | |
291 | if ( stitle.CompareTo(sdigitsTitle)==0 || stitle.CompareTo(sdigitizerTitle)==0 ){ | |
292 | cerr << "ERROR: AliPHOSSdigitizer::SetSDigitsBranch -> Cannot overwrite existing branch with title " << title << endl ; | |
293 | return ; | |
294 | } | |
295 | ||
296 | cout << "AliPHOSSdigitizer::SetSDigitsBranch -> Changing SDigits file from " << GetName() << " to " << title << endl ; | |
297 | ||
298 | SetName(title) ; | |
299 | ||
300 | // Post to the WhiteBoard | |
301 | AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ; | |
302 | gime->PostSDigits( title, GetTitle()) ; | |
303 | } | |
304 | ||
305 | //__________________________________________________________________ | |
306 | void AliPHOSSDigitizer::Print(Option_t* option)const | |
307 | { | |
308 | // Prints parameters of SDigitizer | |
309 | cout << "------------------- "<< GetName() << " -------------" << endl ; | |
310 | cout << " Writing SDigits to branch with title " << GetName() << endl ; | |
311 | cout << " with digitization parameters A = " << fA << endl ; | |
312 | cout << " B = " << fB << endl ; | |
313 | cout << " Threshold for Primary assignment= " << fPrimThreshold << endl ; | |
314 | cout << "---------------------------------------------------"<<endl ; | |
315 | ||
316 | } | |
317 | //__________________________________________________________________ | |
318 | Bool_t AliPHOSSDigitizer::operator==( AliPHOSSDigitizer const &sd )const | |
319 | { | |
320 | // Equal operator. | |
321 | // SDititizers are equal if their pedestal, slope and threshold are equal | |
322 | ||
323 | if( (fA==sd.fA)&&(fB==sd.fB)&&(fPrimThreshold==sd.fPrimThreshold)) | |
324 | return kTRUE ; | |
325 | else | |
326 | return kFALSE ; | |
327 | } | |
328 | //__________________________________________________________________ | |
329 | //__________________________________________________________________ | |
330 | void AliPHOSSDigitizer::PrintSDigits(Option_t * option) | |
331 | { | |
332 | // Prints list of digits produced in the current pass of AliPHOSDigitizer | |
333 | ||
334 | ||
335 | AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ; | |
336 | TString sdname(GetName()) ; | |
337 | sdname.Remove(sdname.Index(GetTitle())-1) ; | |
338 | const TClonesArray * sdigits = gime->SDigits(sdname.Data()) ; | |
339 | ||
340 | cout << "AliPHOSSDigitiser: event " << gAlice->GetEvNumber() << endl ; | |
341 | cout << " Number of entries in SDigits list " << sdigits->GetEntriesFast() << endl ; | |
342 | cout << endl ; | |
343 | if(strstr(option,"all")||strstr(option,"EMC")){ | |
344 | ||
345 | //loop over digits | |
346 | AliPHOSDigit * digit; | |
347 | cout << "EMC sdigits " << endl ; | |
348 | cout << "Digit Id Amplitude Index Nprim Primaries list " << endl; | |
349 | Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ; | |
350 | Int_t index ; | |
351 | for (index = 0 ; (index < sdigits->GetEntriesFast()) && | |
352 | (((AliPHOSDigit * ) sdigits->At(index))->GetId() <= maxEmc) ; index++) { | |
353 | digit = (AliPHOSDigit * ) sdigits->At(index) ; | |
354 | if(digit->GetNprimary() == 0) continue; | |
355 | cout << setw(6) << digit->GetId() << " " << setw(10) << digit->GetAmp() << " " | |
356 | << setw(6) << digit->GetIndexInList() << " " | |
357 | << setw(5) << digit->GetNprimary() <<" "; | |
358 | ||
359 | Int_t iprimary; | |
360 | for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++) | |
361 | cout << setw(5) << digit->GetPrimary(iprimary+1) << " "; | |
362 | cout << endl; | |
363 | } | |
364 | cout << endl; | |
365 | } | |
366 | ||
367 | if(strstr(option,"all")||strstr(option,"CPV")){ | |
368 | ||
369 | //loop over CPV digits | |
370 | AliPHOSDigit * digit; | |
371 | cout << "CPV sdigits " << endl ; | |
372 | cout << "Digit Id Amplitude Index Nprim Primaries list " << endl; | |
373 | Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ; | |
374 | Int_t index ; | |
375 | for (index = 0 ; index < sdigits->GetEntriesFast(); index++) { | |
376 | digit = (AliPHOSDigit * ) sdigits->At(index) ; | |
377 | if(digit->GetId() > maxEmc){ | |
378 | cout << setw(6) << digit->GetId() << " " << setw(10) << digit->GetAmp() << " " | |
379 | << setw(6) << digit->GetIndexInList() << " " | |
380 | << setw(5) << digit->GetNprimary() <<" "; | |
381 | ||
382 | Int_t iprimary; | |
383 | for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++) | |
384 | cout << setw(5) << digit->GetPrimary(iprimary+1) << " "; | |
385 | cout << endl; | |
386 | } | |
387 | } | |
388 | } | |
389 | ||
390 | } | |
391 | ||
392 | //____________________________________________________________________________ | |
393 | void AliPHOSSDigitizer::UseHitsFrom(const char * filename) | |
394 | { | |
395 | SetTitle(filename) ; | |
396 | Init() ; | |
397 | } |