1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
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.
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
48 //*-- Author : Dmitri Peressounko (SUBATECH & KI)
49 //////////////////////////////////////////////////////////////////////////////
52 // --- ROOT system ---
59 #include "TBenchmark.h"
60 #include "TGeometry.h"
62 // --- Standard library ---
65 // --- AliRoot header files ---
67 #include "AliHeader.h"
68 #include "AliPHOSDigit.h"
69 #include "AliPHOSGeometry.h"
70 #include "AliPHOSGetter.h"
71 #include "AliPHOSHit.h"
72 #include "AliPHOSSDigitizer.h"
75 ClassImp(AliPHOSSDigitizer)
78 //____________________________________________________________________________
79 AliPHOSSDigitizer::AliPHOSSDigitizer():TTask("","")
84 fPrimThreshold = 0.01 ;
88 //____________________________________________________________________________
89 AliPHOSSDigitizer::AliPHOSSDigitizer(const char * headerFile, const char * sDigitsTitle):TTask(sDigitsTitle, headerFile)
94 fPrimThreshold = 0.01 ;
100 //____________________________________________________________________________
101 void AliPHOSSDigitizer::Init()
103 // Initialization: open root-file, allocate arrays for hits and sdigits,
104 // attach task SDigitizer to the list of PHOS tasks
106 // Initialization can not be done in the default constructor
107 //============================================================= YS
108 // The initialisation is now done by AliPHOSGetter
110 if( strcmp(GetTitle(), "") == 0 )
111 SetTitle("galice.root") ;
113 AliPHOSGetter * gime = AliPHOSGetter::GetInstance(GetTitle(), GetName()) ;
115 cerr << "ERROR: AliPHOSSDigitizer::Init -> Could not obtain the Getter object !" << endl ;
119 gime->PostSDigits( GetName(), GetTitle() ) ;
121 TString sdname(GetName() );
123 sdname.Append(GetTitle() ) ;
125 gime->PostSDigitizer(this) ;
128 //____________________________________________________________________________
129 void AliPHOSSDigitizer::Exec(Option_t *option)
131 // Collects all hits in the same active volume into digit
132 if( strcmp(GetName(), "") == 0 )
135 if (strstr(option, "print") ) {
140 if(strstr(option,"tim"))
141 gBenchmark->Start("PHOSSDigitizer");
143 //Check, if this branch already exits
144 gAlice->GetEvent(0) ;
146 TString sdname(GetName()) ;
147 sdname.Remove(sdname.Index(GetTitle())-1) ;
149 if(gAlice->TreeS() ) {
150 TObjArray * lob = static_cast<TObjArray*>(gAlice->TreeS()->GetListOfBranches()) ;
152 TBranch * branch = 0 ;
153 Bool_t phosfound = kFALSE, sdigitizerfound = kFALSE ;
155 while ( (branch = (static_cast<TBranch*>(next()))) && (!phosfound || !sdigitizerfound) ) {
156 if ( (strcmp(branch->GetName(), "PHOS")==0) && (strcmp(branch->GetTitle(), GetName())==0) )
159 else if ( (strcmp(branch->GetName(), "AliPHOSSDigitizer")==0) && (strcmp(branch->GetTitle(), GetName())==0) )
160 sdigitizerfound = kTRUE ;
163 if ( phosfound || sdigitizerfound ) {
164 cerr << "WARNING: AliPHOSSDigitizer::Exec -> SDigits and/or SDigitizer branch with name " << GetName()
165 << " already exits" << endl ;
170 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
172 Int_t nevents = (Int_t) gAlice->TreeE()->GetEntries() ;
175 for(ievent = 0; ievent < nevents; ievent++){
176 gime->Event(ievent,"H") ;
177 const TClonesArray * hits = gime->Hits() ;
178 TClonesArray * sdigits = gime->SDigits(sdname.Data()) ;
183 //Now make SDigits from hits, for PHOS it is the same, so just copy
185 //******************** CHECK HERE
186 //YS DOES NOT UNDERSTAND THE NEED FOR THE FOLLOWING LOOP
188 // for (itrack=0; itrack < gAlice->GetNtrack(); itrack++){
189 // //=========== Get the PHOS branch from Hits Tree for the Primary track itrack
190 // gime->Track(itrack) ;
192 for ( i = 0 ; i < hits->GetEntries() ; i++ ) {
193 AliPHOSHit * hit = dynamic_cast<AliPHOSHit *>(hits->At(i)) ;
194 // Assign primary number only if contribution is significant
196 if( hit->GetEnergy() > fPrimThreshold)
197 new((*sdigits)[nSdigits]) AliPHOSDigit(hit->GetPrimary(),hit->GetId(),
198 Digitize(hit->GetEnergy()), hit->GetTime()) ;
200 new((*sdigits)[nSdigits]) AliPHOSDigit( -1 , hit->GetId(),
201 Digitize(hit->GetEnergy()), hit->GetTime()) ;
205 // } // loop over tracks
209 nSdigits = sdigits->GetEntriesFast() ;
210 fSDigitsInRun += nSdigits ;
211 sdigits->Expand(nSdigits) ;
213 for (i = 0 ; i < nSdigits ; i++) {
214 AliPHOSDigit * digit = dynamic_cast<AliPHOSDigit *>(sdigits->At(i)) ;
215 digit->SetIndexInList(i) ;
218 if(gAlice->TreeS() == 0)
219 gAlice->MakeTree("S") ;
221 //First list of sdigits
222 Int_t bufferSize = 32000 ;
223 TBranch * sdigitsBranch = gAlice->TreeS()->Branch("PHOS",&sdigits,bufferSize);
224 sdigitsBranch->SetTitle(sdname);
227 Int_t splitlevel = 0 ;
228 AliPHOSSDigitizer * sd = this ;
229 TBranch * sdigitizerBranch = gAlice->TreeS()->Branch("AliPHOSSDigitizer","AliPHOSSDigitizer",
230 &sd,bufferSize,splitlevel);
231 sdigitizerBranch->SetTitle(sdname);
232 sdigitsBranch->Fill() ;
234 gAlice->TreeS()->AutoSave() ;
236 if(strstr(option,"deb"))
237 PrintSDigits(option) ;
241 if(strstr(option,"tim")){
242 gBenchmark->Stop("PHOSSDigitizer");
243 cout << "AliPHOSSDigitizer:" << endl ;
244 cout << " took " << gBenchmark->GetCpuTime("PHOSSDigitizer") << " seconds for SDigitizing "
245 << gBenchmark->GetCpuTime("PHOSSDigitizer")/nevents << " seconds per event " << endl ;
252 //__________________________________________________________________
253 void AliPHOSSDigitizer::SetSDigitsBranch(const char * title )
255 // Setting title to branch SDigits
257 TString stitle(title) ;
259 // check if branch with title already exists
260 TBranch * sdigitsBranch =
261 static_cast<TBranch*>(gAlice->TreeS()->GetListOfBranches()->FindObject("PHOS")) ;
262 TBranch * sdigitizerBranch =
263 static_cast<TBranch*>(gAlice->TreeS()->GetListOfBranches()->FindObject("AliPHOSSDigitizer")) ;
264 const char * sdigitsTitle = sdigitsBranch ->GetTitle() ;
265 const char * sdigitizerTitle = sdigitizerBranch ->GetTitle() ;
266 if ( stitle.CompareTo(sdigitsTitle)==0 || stitle.CompareTo(sdigitizerTitle)==0 ){
267 cerr << "ERROR: AliPHOSSdigitizer::SetSDigitsBranch -> Cannot overwrite existing branch with title " << title << endl ;
271 cout << "AliPHOSSdigitizer::SetSDigitsBranch -> Changing SDigits file from " << GetName() << " to " << title << endl ;
275 // Post to the WhiteBoard
276 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
277 gime->PostSDigits( title, GetTitle()) ;
280 //__________________________________________________________________
281 void AliPHOSSDigitizer::SetSplitFile(const TString splitFileName) const
283 // Diverts the SDigits in a file separate from the hits file
285 TDirectory * cwd = gDirectory ;
286 TFile * splitFile = gAlice->InitTreeFile("S",splitFileName.Data());
290 TTree *treeE = gAlice->TreeE();
292 cerr<<"No TreeE found "<<endl;
297 AliHeader *header = new AliHeader();
298 treeE->SetBranchAddress("Header", &header);
299 treeE->SetBranchStatus("*",1);
300 TTree *treeENew = treeE->CloneTree();
304 TGeometry *AliceGeom = static_cast<TGeometry*>(cwd->Get("AliceGeom"));
306 cerr<<"AliceGeom was not found in the input file "<<endl;
311 gAlice->MakeTree("S",splitFile);
312 cout << "INFO: AliPHOSSDigitizer::SetSPlitMode -> SDigits will be stored in " << splitFileName.Data() << endl ;
315 //__________________________________________________________________
316 void AliPHOSSDigitizer::Print(Option_t* option)const
318 // Prints parameters of SDigitizer
319 cout << "------------------- "<< GetName() << " -------------" << endl ;
320 cout << " Writing SDigits to branch with title " << GetName() << endl ;
321 cout << " with digitization parameters A = " << fA << endl ;
322 cout << " B = " << fB << endl ;
323 cout << " Threshold for Primary assignment= " << fPrimThreshold << endl ;
324 cout << "---------------------------------------------------"<<endl ;
327 //__________________________________________________________________
328 Bool_t AliPHOSSDigitizer::operator==( AliPHOSSDigitizer const &sd )const
331 // SDititizers are equal if their pedestal, slope and threshold are equal
333 if( (fA==sd.fA)&&(fB==sd.fB)&&(fPrimThreshold==sd.fPrimThreshold))
338 //__________________________________________________________________
339 //__________________________________________________________________
340 void AliPHOSSDigitizer::PrintSDigits(Option_t * option)
342 // Prints list of digits produced in the current pass of AliPHOSDigitizer
345 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
346 TString sdname(GetName()) ;
347 sdname.Remove(sdname.Index(GetTitle())-1) ;
348 const TClonesArray * sdigits = gime->SDigits(sdname.Data()) ;
350 cout << "AliPHOSSDigitiser: event " << gAlice->GetEvNumber() << endl ;
351 cout << " Number of entries in SDigits list " << sdigits->GetEntriesFast() << endl ;
353 if(strstr(option,"all")||strstr(option,"EMC")){
356 AliPHOSDigit * digit;
357 cout << "EMC sdigits " << endl ;
358 cout << "Digit Id Amplitude Index Nprim Primaries list " << endl;
359 Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
361 for (index = 0 ; (index < sdigits->GetEntriesFast()) &&
362 (((AliPHOSDigit * ) sdigits->At(index))->GetId() <= maxEmc) ; index++) {
363 digit = (AliPHOSDigit * ) sdigits->At(index) ;
364 if(digit->GetNprimary() == 0) continue;
365 cout << setw(6) << digit->GetId() << " " << setw(10) << digit->GetAmp() << " "
366 << setw(6) << digit->GetIndexInList() << " "
367 << setw(5) << digit->GetNprimary() <<" ";
370 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
371 cout << setw(5) << digit->GetPrimary(iprimary+1) << " ";
377 if(strstr(option,"all")||strstr(option,"CPV")){
379 //loop over CPV digits
380 AliPHOSDigit * digit;
381 cout << "CPV sdigits " << endl ;
382 cout << "Digit Id Amplitude Index Nprim Primaries list " << endl;
383 Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
385 for (index = 0 ; index < sdigits->GetEntriesFast(); index++) {
386 digit = (AliPHOSDigit * ) sdigits->At(index) ;
387 if(digit->GetId() > maxEmc){
388 cout << setw(6) << digit->GetId() << " " << setw(10) << digit->GetAmp() << " "
389 << setw(6) << digit->GetIndexInList() << " "
390 << setw(5) << digit->GetNprimary() <<" ";
393 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
394 cout << setw(5) << digit->GetPrimary(iprimary+1) << " ";
402 //____________________________________________________________________________
403 void AliPHOSSDigitizer::UseHitsFrom(const char * filename)