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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 | // A Summable Digits is the sum of all hits originating |
21 | // from one primary in one active cell |
22 | // A threshold for assignment of the primary to SDigit is applied |
23 | // SDigits are written to TreeS, branch "EMCAL" |
24 | // AliEMCALSDigitizer with all current parameters is written |
25 | // to TreeS branch "AliEMCALSDigitizer". |
26 | // Both branches have the same title. If necessary one can produce |
27 | // another set of SDigits with different parameters. Two versions |
28 | // can be distunguished using titles of the branches. |
29 | // User case: |
30 | // root [0] AliEMCALSDigitizer * s = new AliEMCALSDigitizer("galice.root") |
31 | // Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated |
32 | // root [1] s->ExecuteTask() |
33 | // // Makes SDigitis for all events stored in galice.root |
34 | // root [2] s->SetPedestalParameter(0.001) |
35 | // // One can change parameters of digitization |
36 | // root [3] s->SetSDigitsBranch("Redestal 0.001") |
37 | // // and write them into the new branch |
38 | // root [4] s->ExeciteTask("deb all tim") |
39 | // // available parameters: |
40 | // deb - print # of produced SDigitis |
41 | // deb all - print # and list of produced SDigits |
42 | // tim - print benchmarking information |
43 | // |
44 | //*-- Author : Dmitri Peressounko (SUBATECH & KI) |
45 | ////////////////////////////////////////////////////////////////////////////// |
46 | |
47 | |
48 | // --- ROOT system --- |
49 | #include "TFile.h" |
50 | #include "TTask.h" |
51 | #include "TTree.h" |
52 | #include "TSystem.h" |
53 | #include "TROOT.h" |
54 | #include "TFolder.h" |
55 | #include "TBenchmark.h" |
56 | // --- Standard library --- |
57 | #include <iomanip.h> |
58 | |
59 | // --- AliRoot header files --- |
60 | #include "AliRun.h" |
61 | #include "AliEMCALDigit.h" |
62 | #include "AliEMCALHit.h" |
63 | #include "AliEMCALSDigitizer.h" |
64 | #include "AliEMCALGeometry.h" |
65 | #include "AliEMCALv1.h" |
66 | |
67 | ClassImp(AliEMCALSDigitizer) |
68 | |
69 | |
70 | //____________________________________________________________________________ |
71 | AliEMCALSDigitizer::AliEMCALSDigitizer():TTask("AliEMCALSDigitizer","") |
72 | { |
73 | // ctor |
74 | fA = 0; |
75 | fB = 10000000. ; |
76 | fPrimThreshold = 0.001 ; |
77 | fNevents = 0 ; |
78 | fSDigits = 0 ; |
79 | fHits = 0 ; |
80 | fIsInitialized = kFALSE ; |
81 | |
82 | } |
83 | |
84 | //____________________________________________________________________________ |
85 | AliEMCALSDigitizer::AliEMCALSDigitizer(const char* headerFile, const char *sDigitsTitle):TTask("AliEMCALSDigitizer","") |
86 | { |
87 | // ctor |
88 | fA = 0; |
89 | fB = 10000000.; |
90 | fPrimThreshold = 0.001 ; |
91 | fNevents = 0 ; |
92 | fSDigitsTitle = sDigitsTitle ; |
93 | fHeadersFile = headerFile ; |
94 | fSDigits = new TClonesArray("AliEMCALDigit",1000); |
95 | fHits = new TClonesArray("AliEMCALHit",1000); |
96 | |
97 | TFile * file = (TFile*) gROOT->GetFile(fHeadersFile.Data() ) ; |
98 | |
99 | //File was not opened yet |
100 | if(file == 0){ |
101 | if(fHeadersFile.Contains("rfio")) |
102 | file = TFile::Open(fHeadersFile,"update") ; |
103 | else |
104 | file = new TFile(fHeadersFile.Data(),"update") ; |
105 | gAlice = (AliRun *) file->Get("gAlice") ; |
106 | } |
107 | |
108 | //add Task to //root/Tasks folder |
109 | TTask * roottasks = (TTask*)gROOT->GetRootFolder()->FindObject("Tasks") ; |
110 | roottasks->Add(this) ; |
111 | |
112 | fIsInitialized = kTRUE ; |
113 | } |
114 | |
115 | //____________________________________________________________________________ |
116 | AliEMCALSDigitizer::~AliEMCALSDigitizer() |
117 | { |
118 | // dtor |
119 | if(fSDigits) |
120 | delete fSDigits ; |
121 | if(fHits) |
122 | delete fHits ; |
123 | } |
124 | //____________________________________________________________________________ |
125 | void AliEMCALSDigitizer::Init(){ |
126 | //Initialization can not be done in the default constructor |
127 | |
128 | if(!fIsInitialized){ |
129 | |
130 | if(fHeadersFile.IsNull()) |
131 | fHeadersFile="galice.root" ; |
132 | |
133 | TFile * file = (TFile*) gROOT->GetFile(fHeadersFile.Data() ) ; |
134 | |
135 | //if file was not opened yet, read gAlice |
136 | if(file == 0){ |
137 | file = new TFile(fHeadersFile.Data(),"update") ; |
138 | gAlice = (AliRun *) file->Get("gAlice") ; |
139 | } |
140 | |
141 | fHits = new TClonesArray("AliEMCALHit",1000); |
142 | fSDigits = new TClonesArray("AliEMCALDigit",1000); |
143 | |
144 | // add Task to //root/Tasks folder |
145 | TTask * roottasks = (TTask*)gROOT->GetRootFolder()->FindObject("Tasks") ; |
146 | roottasks->Add(this) ; |
147 | |
148 | fIsInitialized = kTRUE ; |
149 | } |
150 | } |
151 | //____________________________________________________________________________ |
152 | void AliEMCALSDigitizer::Exec(Option_t *option) { |
153 | //Collects all hits in the same active volume into digit |
154 | |
155 | if(!fIsInitialized) |
156 | Init() ; |
157 | |
158 | if(strstr(option,"tim")) |
159 | gBenchmark->Start("EMCALSDigitizer"); |
160 | |
161 | fNevents = (Int_t) gAlice->TreeE()->GetEntries() ; |
162 | |
163 | Int_t ievent ; |
164 | for(ievent = 0; ievent < fNevents; ievent++){ |
165 | gAlice->GetEvent(ievent) ; |
166 | gAlice->SetEvent(ievent) ; |
167 | |
168 | if(gAlice->TreeH()==0){ |
169 | cout << "AliEMCALSDigitizer: There is no Hit Tree" << endl; |
170 | return ; |
171 | } |
172 | |
173 | //set address of the hits |
174 | TBranch * branch = gAlice->TreeH()->GetBranch("EMCAL"); |
175 | if (branch) |
176 | branch->SetAddress(&fHits); |
177 | else{ |
178 | cout << "ERROR in AliEMCALSDigitizer: "<< endl ; |
179 | cout << " no branch EMCAL in TreeH"<< endl ; |
180 | cout << " do nothing " << endl ; |
181 | return ; |
182 | } |
183 | |
184 | fSDigits->Clear(); |
185 | Int_t nSdigits = 0 ; |
186 | |
187 | |
188 | //Now made SDigits from hits, for EMCAL it is the same, so just copy |
189 | Int_t itrack ; |
190 | for (itrack=0; itrack < gAlice->GetNtrack(); itrack++){ |
191 | |
192 | //=========== Get the EMCAL branch from Hits Tree for the Primary track itrack |
193 | branch->GetEntry(itrack,0); |
194 | AliEMCAL * EMCAL = (AliEMCAL *) gAlice->GetDetector("EMCAL") ; |
195 | AliEMCALGeometry *geom = AliEMCALGeometry::GetInstance( EMCAL->GetGeometry()->GetName(), EMCAL->GetGeometry()->GetTitle() ); |
196 | |
197 | Int_t i; |
198 | for ( i = 0 ; i < fHits->GetEntries() ; i++ ) { |
199 | AliEMCALHit * hit = (AliEMCALHit*)fHits->At(i) ; |
200 | AliEMCALDigit curSDigit = AliEMCALDigit(1,1,1,1); |
201 | AliEMCALDigit *sdigit ; |
202 | |
203 | // Assign primary number only if contribution is significant |
204 | |
205 | if( hit->GetEnergy() > fPrimThreshold) |
206 | curSDigit = AliEMCALDigit( hit->GetPrimary(), hit->GetIparent(), (((hit->GetId()/geom->GetNPhi())%geom->GetNZ()+1) * (hit->GetId()%(geom->GetNPhi()+1))), Digitize( hit->GetEnergy() ) ) ; |
207 | else |
208 | curSDigit = AliEMCALDigit( -1 , -1 ,(((hit->GetId()/geom->GetNPhi())%geom->GetNZ()+1) * (hit->GetId()%(geom->GetNPhi()+1))), Digitize( hit->GetEnergy() ) ) ; |
209 | |
210 | for(Int_t check= 0; check < nSdigits; check++) { |
211 | sdigit = (AliEMCALDigit *)fSDigits->At(check); |
212 | if( (((hit->GetId()/geom->GetNPhi())%geom->GetNZ()) == ((sdigit->GetId()/geom->GetNPhi())%geom->GetNZ())) && ((hit->GetId()%geom->GetNPhi()) == (sdigit->GetId()%geom->GetNPhi()))) |
213 | { |
214 | *sdigit = *sdigit + curSDigit ; |
215 | } |
216 | else |
217 | { new((*fSDigits)[nSdigits]) AliEMCALDigit(curSDigit); |
218 | nSdigits++ ; } |
219 | } |
220 | |
221 | |
222 | if( hit->GetEnergy() > fPrimThreshold) |
223 | curSDigit = AliEMCALDigit( hit->GetPrimary(), hit->GetIparent(), ((geom->GetNZ() * geom->GetNPhi()) + ((hit->GetId()/geom->GetNPhi())%geom->GetNZ()+1) * (hit->GetId()%(geom->GetNPhi()+1))), Digitize( hit->GetEnergy() ) ) ; |
224 | else |
225 | curSDigit = AliEMCALDigit( -1 , -1 ,((geom->GetNZ() * geom->GetNPhi()) + ((hit->GetId()/geom->GetNPhi())%geom->GetNZ()+1) * (hit->GetId()%(geom->GetNPhi()+1))), Digitize( hit->GetEnergy() ) ) ; |
226 | |
227 | if((hit->GetId()/geom->GetNPhi()) < (2*geom->GetNZ())) |
228 | { |
229 | for(Int_t check= 0; check < nSdigits; check++) { |
230 | sdigit = (AliEMCALDigit *)fSDigits->At(check); |
231 | if( (((hit->GetId()/geom->GetNPhi())%geom->GetNZ()) == ((sdigit->GetId()/geom->GetNPhi())%geom->GetNZ())) && ((hit->GetId()%geom->GetNPhi()) == (sdigit->GetId()%geom->GetNPhi()))) |
232 | { |
233 | *sdigit = *sdigit + curSDigit ; |
234 | } |
235 | else |
236 | { new((*fSDigits)[nSdigits]) AliEMCALDigit(curSDigit); |
237 | nSdigits++ ; } |
238 | } |
239 | } |
240 | } |
241 | } // loop over tracks |
242 | |
243 | fSDigits->Sort() ; |
244 | |
245 | nSdigits = fSDigits->GetEntriesFast() ; |
246 | fSDigits->Expand(nSdigits) ; |
247 | |
248 | Int_t i ; |
249 | for (i = 0 ; i < nSdigits ; i++) { |
250 | AliEMCALDigit * digit = (AliEMCALDigit *) fSDigits->At(i) ; |
251 | digit->SetIndexInList(i) ; |
252 | } |
253 | |
254 | if(gAlice->TreeS() == 0) |
255 | gAlice->MakeTree("S") ; |
256 | |
257 | //check, if this branch already exits? |
258 | TBranch * sdigitsBranch = 0; |
259 | TBranch * sdigitizerBranch = 0; |
260 | |
261 | TObjArray * branches = gAlice->TreeS()->GetListOfBranches() ; |
262 | Int_t ibranch; |
263 | Bool_t emcalNotFound = kTRUE ; |
264 | Bool_t sdigitizerNotFound = kTRUE ; |
265 | |
266 | for(ibranch = 0;ibranch <branches->GetEntries();ibranch++){ |
267 | |
268 | if(emcalNotFound){ |
269 | sdigitsBranch=(TBranch *) branches->At(ibranch) ; |
270 | if( (strcmp("EMCAL",sdigitsBranch->GetName())==0 ) && |
271 | (fSDigitsTitle.CompareTo(sdigitsBranch->GetTitle()) == 0) ) |
272 | emcalNotFound = kFALSE ; |
273 | } |
274 | if(sdigitizerNotFound){ |
275 | sdigitizerBranch = (TBranch *) branches->At(ibranch) ; |
276 | if( (strcmp(sdigitizerBranch->GetName(),"AliEMCALSDigitizer") == 0)&& |
277 | (fSDigitsTitle.CompareTo(sdigitizerBranch->GetTitle()) == 0) ) |
278 | sdigitizerNotFound = kFALSE ; |
279 | } |
280 | } |
281 | |
282 | if(!(sdigitizerNotFound && emcalNotFound)){ |
283 | cout << "AliEMCALSdigitizer error:" << endl ; |
284 | cout << "Can not overwrite existing branches: do not write" << endl ; |
285 | return ; |
286 | } |
287 | |
288 | //Make (if necessary) branches |
289 | char * file =0; |
290 | if(gSystem->Getenv("CONFIG_SPLIT_FILE")){ //generating file name |
291 | file = new char[strlen(gAlice->GetBaseFile())+20] ; |
292 | sprintf(file,"%s/EMCAL.SDigits.root",gAlice->GetBaseFile()) ; |
293 | } |
294 | |
295 | TDirectory *cwd = gDirectory; |
296 | |
297 | //First list of sdigits |
298 | Int_t bufferSize = 32000 ; |
299 | sdigitsBranch = gAlice->TreeS()->Branch("EMCAL",&fSDigits,bufferSize); |
300 | sdigitsBranch->SetTitle(fSDigitsTitle.Data()); |
301 | if (file) { |
302 | sdigitsBranch->SetFile(file); |
303 | TIter next( sdigitsBranch->GetListOfBranches()); |
304 | TBranch * subbr; |
305 | while ((subbr=(TBranch*)next())) { |
306 | subbr->SetFile(file); |
307 | } |
308 | cwd->cd(); |
309 | } |
310 | |
311 | //second - SDigitizer |
312 | Int_t splitlevel = 0 ; |
313 | AliEMCALSDigitizer * sd = this ; |
314 | sdigitizerBranch = gAlice->TreeS()->Branch("AliEMCALSDigitizer","AliEMCALSDigitizer", |
315 | &sd,bufferSize,splitlevel); |
316 | sdigitizerBranch->SetTitle(fSDigitsTitle.Data()); |
317 | if (file) { |
318 | sdigitizerBranch->SetFile(file); |
319 | TIter next( sdigitizerBranch->GetListOfBranches()); |
320 | TBranch * subbr ; |
321 | while ((subbr=(TBranch*)next())) { |
322 | subbr->SetFile(file); |
323 | } |
324 | cwd->cd(); |
325 | delete file; |
326 | } |
327 | |
328 | sdigitsBranch->Fill() ; |
329 | sdigitizerBranch->Fill() ; |
330 | gAlice->TreeS()->Write(0,TObject::kOverwrite) ; |
331 | |
332 | if(strstr(option,"deb")) |
333 | PrintSDigits(option) ; |
334 | |
335 | } |
336 | |
337 | if(strstr(option,"tim")){ |
338 | gBenchmark->Stop("EMCALSDigitizer"); |
339 | cout << "AliEMCALSDigitizer:" << endl ; |
340 | cout << " took " << gBenchmark->GetCpuTime("EMCALSDigitizer") << " seconds for SDigitizing " |
341 | << gBenchmark->GetCpuTime("EMCALSDigitizer")/fNevents << " seconds per event " << endl ; |
342 | cout << endl ; |
343 | } |
344 | |
345 | |
346 | } |
347 | //__________________________________________________________________ |
348 | void AliEMCALSDigitizer::SetSDigitsBranch(const char * title ){ |
349 | //Seting title to branch SDigits |
350 | if(!fSDigitsTitle.IsNull()) |
351 | cout << "AliEMCALSdigitizer: changing SDigits file from " <<fSDigitsTitle.Data() << " to " << title << endl ; |
352 | fSDigitsTitle=title ; |
353 | } |
354 | //__________________________________________________________________ |
355 | void AliEMCALSDigitizer::Print(Option_t* option)const{ |
356 | cout << "------------------- "<< GetName() << " -------------" << endl ; |
357 | cout << " Writing SDigitis to branch with title " << fSDigitsTitle.Data() << endl ; |
358 | cout << " with digitization parameters A = " << fA << endl ; |
359 | cout << " B = " << fB << endl ; |
360 | cout << " Threshold for Primary assignment= " << fPrimThreshold << endl ; |
361 | cout << "---------------------------------------------------"<<endl ; |
362 | |
363 | } |
364 | //__________________________________________________________________ |
365 | Bool_t AliEMCALSDigitizer::operator==( AliEMCALSDigitizer const &sd )const{ |
366 | if( (fA==sd.fA)&&(fB==sd.fB)&&(fPrimThreshold==sd.fPrimThreshold)) |
367 | return kTRUE ; |
368 | else |
369 | return kFALSE ; |
370 | } |
371 | //__________________________________________________________________ |
372 | void AliEMCALSDigitizer::PrintSDigits(Option_t * option){ |
373 | //Prints list of digits produced at the current pass of AliEMCALDigitizer |
374 | |
375 | cout << "AliEMCALSDigitizer: " << endl ; |
376 | cout << " Number of entries in SDigits list " << fSDigits->GetEntriesFast() << endl ; |
377 | cout << endl ; |
378 | |
379 | if(strstr(option,"all")){// print all digits |
380 | |
381 | //loop over digits |
382 | AliEMCALDigit * digit; |
383 | cout << "SDigit Id " << " Amplitude " << " Index " << " Nprim " << " Primaries list " << endl; |
384 | Int_t index ; |
385 | for (index = 0 ; index < fSDigits->GetEntries() ; index++) { |
386 | digit = (AliEMCALDigit * ) fSDigits->At(index) ; |
387 | cout << setw(8) << digit->GetId() << " " << setw(3) << digit->GetAmp() << " " |
388 | << setw(6) << digit->GetIndexInList() << " " |
389 | << setw(5) << digit->GetNprimary() <<" "; |
390 | |
391 | Int_t iprimary; |
392 | for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++) |
393 | cout << setw(5) << digit->GetPrimary(iprimary+1) << " "; |
394 | cout << endl; |
395 | } |
396 | |
397 | } |
398 | } |