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 **************************************************************************/
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.
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
49 //*-- Author : Dmitri Peressounko (SUBATECH & KI)
50 //////////////////////////////////////////////////////////////////////////////
53 // --- ROOT system ---
60 #include "TBenchmark.h"
61 #include "TGeometry.h"
63 // --- Standard library ---
66 // --- AliRoot header files ---
68 #include "AliHeader.h"
69 #include "AliPHOSDigit.h"
70 #include "AliPHOSGeometry.h"
71 #include "AliPHOSGetter.h"
72 #include "AliPHOSHit.h"
73 #include "AliPHOSSDigitizer.h"
76 ClassImp(AliPHOSSDigitizer)
79 //____________________________________________________________________________
80 AliPHOSSDigitizer::AliPHOSSDigitizer():TTask("","")
85 fPrimThreshold = 0.01 ;
90 //____________________________________________________________________________
91 AliPHOSSDigitizer::AliPHOSSDigitizer(const char * headerFile, const char * sDigitsTitle):TTask(sDigitsTitle, headerFile)
96 fPrimThreshold = 0.01 ;
102 //____________________________________________________________________________
103 AliPHOSSDigitizer::~AliPHOSSDigitizer()
106 if ( fSplitFile->IsOpen() )
107 fSplitFile->Close() ;
108 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
112 //____________________________________________________________________________
113 void AliPHOSSDigitizer::Init()
115 // Initialization: open root-file, allocate arrays for hits and sdigits,
116 // attach task SDigitizer to the list of PHOS tasks
118 // Initialization can not be done in the default constructor
119 //============================================================= YS
120 // The initialisation is now done by AliPHOSGetter
122 if( strcmp(GetTitle(), "") == 0 )
123 SetTitle("galice.root") ;
125 AliPHOSGetter * gime = AliPHOSGetter::GetInstance(GetTitle(), GetName()) ;
127 cerr << "ERROR: AliPHOSSDigitizer::Init -> Could not obtain the Getter object !" << endl ;
131 gime->PostSDigits( GetName(), GetTitle() ) ;
133 TString sdname(GetName() );
135 sdname.Append(GetTitle() ) ;
137 gime->PostSDigitizer(this) ;
140 //____________________________________________________________________________
141 void AliPHOSSDigitizer::Exec(Option_t *option)
143 // Collects all hits in the same active volume into digit
144 if( strcmp(GetName(), "") == 0 )
147 if (strstr(option, "print") ) {
152 if(strstr(option,"tim"))
153 gBenchmark->Start("PHOSSDigitizer");
155 //Check, if this branch already exits
156 gAlice->GetEvent(0) ;
158 TString sdname(GetName()) ;
159 sdname.Remove(sdname.Index(GetTitle())-1) ;
161 if(gAlice->TreeS() ) {
162 TObjArray * lob = static_cast<TObjArray*>(gAlice->TreeS()->GetListOfBranches()) ;
164 TBranch * branch = 0 ;
165 Bool_t phosfound = kFALSE, sdigitizerfound = kFALSE ;
167 while ( (branch = (static_cast<TBranch*>(next()))) && (!phosfound || !sdigitizerfound) ) {
168 TString thisName( GetName() ) ;
169 TString branchName( branch->GetTitle() ) ;
170 branchName.Append(":") ;
171 if ( (strcmp(branch->GetName(), "PHOS")==0) && thisName.BeginsWith(branchName) )
173 else if ( (strcmp(branch->GetName(), "AliPHOSSDigitizer")==0) && thisName.BeginsWith(branchName) )
174 sdigitizerfound = kTRUE ;
177 if ( phosfound || sdigitizerfound ) {
178 cerr << "WARNING: AliPHOSSDigitizer::Exec -> SDigits and/or SDigitizer branch with name " << GetName()
179 << " already exits" << endl ;
184 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
186 Int_t nevents = (Int_t) gAlice->TreeE()->GetEntries() ;
189 for(ievent = 0; ievent < nevents; ievent++){
190 gime->Event(ievent,"H") ;
191 const TClonesArray * hits = gime->Hits() ;
192 TClonesArray * sdigits = gime->SDigits(sdname.Data()) ;
197 //Now make SDigits from hits, for PHOS it is the same, so just copy
199 Int_t Nprim = (Int_t) (gAlice->TreeH())->GetEntries();
200 // Attention Nprim is the number of primaries tracked by Geant and this number could be different to the number of Primaries in TreeK;
202 for (iprim=0; iprim<Nprim; iprim++) {
203 //=========== Get the PHOS branch from Hits Tree for the Primary iprim
206 for ( i = 0 ; i < hits->GetEntries() ; i++ ) {
207 AliPHOSHit * hit = dynamic_cast<AliPHOSHit *>(hits->At(i)) ;
208 // Assign primary number only if contribution is significant
210 if( hit->GetEnergy() > fPrimThreshold)
211 new((*sdigits)[nSdigits]) AliPHOSDigit(hit->GetPrimary(),hit->GetId(),
212 Digitize(hit->GetEnergy()), hit->GetTime()) ;
214 new((*sdigits)[nSdigits]) AliPHOSDigit( -1 , hit->GetId(),
215 Digitize(hit->GetEnergy()), hit->GetTime()) ;
224 nSdigits = sdigits->GetEntriesFast() ;
225 fSDigitsInRun += nSdigits ;
226 sdigits->Expand(nSdigits) ;
229 for (i = 0 ; i < nSdigits ; i++) {
230 AliPHOSDigit * digit = dynamic_cast<AliPHOSDigit *>(sdigits->At(i)) ;
231 digit->SetIndexInList(i) ;
234 if(gAlice->TreeS() == 0)
235 gAlice->MakeTree("S", fSplitFile);
237 //First list of sdigits
238 Int_t bufferSize = 32000 ;
239 TBranch * sdigitsBranch = gAlice->TreeS()->Branch("PHOS",&sdigits,bufferSize);
240 sdigitsBranch->SetTitle(sdname);
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);
249 sdigitsBranch->Fill() ;
250 sdigitizerBranch->Fill() ;
251 gAlice->TreeS()->AutoSave() ;
253 if(strstr(option,"deb"))
254 PrintSDigits(option) ;
259 if ( fSplitFile->IsOpen() )
260 fSplitFile->Close() ;
263 if(strstr(option,"tim")){
264 gBenchmark->Stop("PHOSSDigitizer");
265 cout << "AliPHOSSDigitizer:" << endl ;
266 cout << " took " << gBenchmark->GetCpuTime("PHOSSDigitizer") << " seconds for SDigitizing "
267 << gBenchmark->GetCpuTime("PHOSSDigitizer")/nevents << " seconds per event " << endl ;
274 //__________________________________________________________________
275 void AliPHOSSDigitizer::SetSDigitsBranch(const char * title )
277 // Setting title to branch SDigits
279 TString stitle(title) ;
281 // check if branch with title already exists
282 TBranch * sdigitsBranch =
283 static_cast<TBranch*>(gAlice->TreeS()->GetListOfBranches()->FindObject("PHOS")) ;
284 TBranch * sdigitizerBranch =
285 static_cast<TBranch*>(gAlice->TreeS()->GetListOfBranches()->FindObject("AliPHOSSDigitizer")) ;
286 const char * sdigitsTitle = sdigitsBranch ->GetTitle() ;
287 const char * sdigitizerTitle = sdigitizerBranch ->GetTitle() ;
288 if ( stitle.CompareTo(sdigitsTitle)==0 || stitle.CompareTo(sdigitizerTitle)==0 ){
289 cerr << "ERROR: AliPHOSSdigitizer::SetSDigitsBranch -> Cannot overwrite existing branch with title " << title << endl ;
293 cout << "AliPHOSSdigitizer::SetSDigitsBranch -> Changing SDigits file from " << GetName() << " to " << title << endl ;
297 // Post to the WhiteBoard
298 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
299 gime->PostSDigits( title, GetTitle()) ;
302 //__________________________________________________________________
303 void AliPHOSSDigitizer::SetSplitFile(const TString splitFileName)
305 // Diverts the SDigits in a file separate from the hits file
307 TDirectory * cwd = gDirectory ;
309 if ( !(gAlice->GetTreeSFileName() == splitFileName) ) {
310 if (gAlice->GetTreeSFile() )
311 gAlice->GetTreeSFile()->Close() ;
314 fSplitFile = gAlice->InitTreeFile("S",splitFileName.Data());
316 if ( !fSplitFile->Get("gAlice") )
319 TTree *treeE = gAlice->TreeE();
321 cerr << "ERROR: AliPHOSSDigitizer::SetSPlitFile -> No TreeE found "<<endl;
326 if ( !fSplitFile->Get("TreeE") ) {
327 AliHeader *header = new AliHeader();
328 treeE->SetBranchAddress("Header", &header);
329 treeE->SetBranchStatus("*",1);
330 TTree *treeENew = treeE->CloneTree();
335 if ( !fSplitFile->Get("AliceGeom") ) {
336 TGeometry *AliceGeom = static_cast<TGeometry*>(cwd->Get("AliceGeom"));
338 cerr << "ERROR: AliPHOSSDigitizer::SetSPlitFile -> AliceGeom was not found in the input file "<<endl;
344 gAlice->MakeTree("S",fSplitFile);
348 //__________________________________________________________________
349 void AliPHOSSDigitizer::Print(Option_t* option)const
351 // Prints parameters of SDigitizer
352 cout << "------------------- "<< GetName() << " -------------" << endl ;
353 cout << " Writing SDigits to branch with title " << GetName() << endl ;
354 cout << " with digitization parameters A = " << fA << endl ;
355 cout << " B = " << fB << endl ;
356 cout << " Threshold for Primary assignment= " << fPrimThreshold << endl ;
357 cout << "---------------------------------------------------"<<endl ;
360 //__________________________________________________________________
361 Bool_t AliPHOSSDigitizer::operator==( AliPHOSSDigitizer const &sd )const
364 // SDititizers are equal if their pedestal, slope and threshold are equal
366 if( (fA==sd.fA)&&(fB==sd.fB)&&(fPrimThreshold==sd.fPrimThreshold))
371 //__________________________________________________________________
372 //__________________________________________________________________
373 void AliPHOSSDigitizer::PrintSDigits(Option_t * option)
375 // Prints list of digits produced in the current pass of AliPHOSDigitizer
378 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
379 TString sdname(GetName()) ;
380 sdname.Remove(sdname.Index(GetTitle())-1) ;
381 const TClonesArray * sdigits = gime->SDigits(sdname.Data()) ;
383 cout << "AliPHOSSDigitiser: event " << gAlice->GetEvNumber() << endl ;
384 cout << " Number of entries in SDigits list " << sdigits->GetEntriesFast() << endl ;
386 if(strstr(option,"all")||strstr(option,"EMC")){
389 AliPHOSDigit * digit;
390 cout << "EMC sdigits " << endl ;
391 cout << "Digit Id Amplitude Index Nprim Primaries list " << endl;
392 Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
394 for (index = 0 ; (index < sdigits->GetEntriesFast()) &&
395 (((AliPHOSDigit * ) sdigits->At(index))->GetId() <= maxEmc) ; index++) {
396 digit = (AliPHOSDigit * ) sdigits->At(index) ;
397 if(digit->GetNprimary() == 0) continue;
398 cout << setw(6) << digit->GetId() << " " << setw(10) << digit->GetAmp() << " "
399 << setw(6) << digit->GetIndexInList() << " "
400 << setw(5) << digit->GetNprimary() <<" ";
403 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
404 cout << setw(5) << digit->GetPrimary(iprimary+1) << " ";
410 if(strstr(option,"all")||strstr(option,"CPV")){
412 //loop over CPV digits
413 AliPHOSDigit * digit;
414 cout << "CPV sdigits " << endl ;
415 cout << "Digit Id Amplitude Index Nprim Primaries list " << endl;
416 Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
418 for (index = 0 ; index < sdigits->GetEntriesFast(); index++) {
419 digit = (AliPHOSDigit * ) sdigits->At(index) ;
420 if(digit->GetId() > maxEmc){
421 cout << setw(6) << digit->GetId() << " " << setw(10) << digit->GetAmp() << " "
422 << setw(6) << digit->GetIndexInList() << " "
423 << setw(5) << digit->GetNprimary() <<" ";
426 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
427 cout << setw(5) << digit->GetPrimary(iprimary+1) << " ";
435 //____________________________________________________________________________
436 void AliPHOSSDigitizer::UseHitsFrom(const char * filename)