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() ;
110 //____________________________________________________________________________
111 void AliPHOSSDigitizer::Init()
113 // Initialization: open root-file, allocate arrays for hits and sdigits,
114 // attach task SDigitizer to the list of PHOS tasks
116 // Initialization can not be done in the default constructor
117 //============================================================= YS
118 // The initialisation is now done by AliPHOSGetter
120 if( strcmp(GetTitle(), "") == 0 )
121 SetTitle("galice.root") ;
123 AliPHOSGetter * gime = AliPHOSGetter::GetInstance(GetTitle(), GetName()) ;
125 cerr << "ERROR: AliPHOSSDigitizer::Init -> Could not obtain the Getter object !" << endl ;
129 gime->PostSDigits( GetName(), GetTitle() ) ;
131 TString sdname(GetName() );
133 sdname.Append(GetTitle() ) ;
135 gime->PostSDigitizer(this) ;
138 //____________________________________________________________________________
139 void AliPHOSSDigitizer::Exec(Option_t *option)
141 // Collects all hits in the same active volume into digit
142 if( strcmp(GetName(), "") == 0 )
145 if (strstr(option, "print") ) {
150 if(strstr(option,"tim"))
151 gBenchmark->Start("PHOSSDigitizer");
153 //Check, if this branch already exits
154 gAlice->GetEvent(0) ;
156 TString sdname(GetName()) ;
157 sdname.Remove(sdname.Index(GetTitle())-1) ;
159 if(gAlice->TreeS() ) {
160 TObjArray * lob = static_cast<TObjArray*>(gAlice->TreeS()->GetListOfBranches()) ;
162 TBranch * branch = 0 ;
163 Bool_t phosfound = kFALSE, sdigitizerfound = kFALSE ;
165 while ( (branch = (static_cast<TBranch*>(next()))) && (!phosfound || !sdigitizerfound) ) {
166 TString thisName( GetName() ) ;
167 TString branchName( branch->GetTitle() ) ;
168 branchName.Append(":") ;
169 if ( (strcmp(branch->GetName(), "PHOS")==0) && thisName.BeginsWith(branchName) )
171 else if ( (strcmp(branch->GetName(), "AliPHOSSDigitizer")==0) && thisName.BeginsWith(branchName) )
172 sdigitizerfound = kTRUE ;
175 if ( phosfound || sdigitizerfound ) {
176 cerr << "WARNING: AliPHOSSDigitizer::Exec -> SDigits and/or SDigitizer branch with name " << GetName()
177 << " already exits" << endl ;
182 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
184 Int_t nevents = (Int_t) gAlice->TreeE()->GetEntries() ;
187 for(ievent = 0; ievent < nevents; ievent++){
188 gime->Event(ievent,"H") ;
189 const TClonesArray * hits = gime->Hits() ;
190 TClonesArray * sdigits = gime->SDigits(sdname.Data()) ;
195 //Now make SDigits from hits, for PHOS it is the same, so just copy
197 Int_t Nprim = (Int_t) (gAlice->TreeH())->GetEntries();
198 // Attention Nprim is the number of primaries tracked by Geant and this number could be different to the number of Primaries in TreeK;
200 for (iprim=0; iprim<Nprim; iprim++) {
201 //=========== Get the PHOS branch from Hits Tree for the Primary iprim
204 for ( i = 0 ; i < hits->GetEntries() ; i++ ) {
205 AliPHOSHit * hit = dynamic_cast<AliPHOSHit *>(hits->At(i)) ;
206 // Assign primary number only if contribution is significant
208 if( hit->GetEnergy() > fPrimThreshold)
209 new((*sdigits)[nSdigits]) AliPHOSDigit(hit->GetPrimary(),hit->GetId(),
210 Digitize(hit->GetEnergy()), hit->GetTime()) ;
212 new((*sdigits)[nSdigits]) AliPHOSDigit( -1 , hit->GetId(),
213 Digitize(hit->GetEnergy()), hit->GetTime()) ;
222 nSdigits = sdigits->GetEntriesFast() ;
223 fSDigitsInRun += nSdigits ;
224 sdigits->Expand(nSdigits) ;
227 for (i = 0 ; i < nSdigits ; i++) {
228 AliPHOSDigit * digit = dynamic_cast<AliPHOSDigit *>(sdigits->At(i)) ;
229 digit->SetIndexInList(i) ;
232 if(gAlice->TreeS() == 0)
233 gAlice->MakeTree("S",fSplitFile);
235 //First list of sdigits
236 Int_t bufferSize = 32000 ;
237 TBranch * sdigitsBranch = gAlice->TreeS()->Branch("PHOS",&sdigits,bufferSize);
238 sdigitsBranch->SetTitle(sdname);
241 Int_t splitlevel = 0 ;
242 AliPHOSSDigitizer * sd = this ;
243 TBranch * sdigitizerBranch = gAlice->TreeS()->Branch("AliPHOSSDigitizer","AliPHOSSDigitizer",
244 &sd,bufferSize,splitlevel);
245 sdigitizerBranch->SetTitle(sdname);
247 sdigitsBranch->Fill() ;
248 sdigitizerBranch->Fill() ;
249 gAlice->TreeS()->AutoSave() ;
251 if(strstr(option,"deb"))
252 PrintSDigits(option) ;
257 if ( fSplitFile->IsOpen() )
258 fSplitFile->Close() ;
261 if(strstr(option,"tim")){
262 gBenchmark->Stop("PHOSSDigitizer");
263 cout << "AliPHOSSDigitizer:" << endl ;
264 cout << " took " << gBenchmark->GetCpuTime("PHOSSDigitizer") << " seconds for SDigitizing "
265 << gBenchmark->GetCpuTime("PHOSSDigitizer")/nevents << " seconds per event " << endl ;
272 //__________________________________________________________________
273 void AliPHOSSDigitizer::SetSDigitsBranch(const char * title )
275 // Setting title to branch SDigits
277 TString stitle(title) ;
279 // check if branch with title already exists
280 TBranch * sdigitsBranch =
281 static_cast<TBranch*>(gAlice->TreeS()->GetListOfBranches()->FindObject("PHOS")) ;
282 TBranch * sdigitizerBranch =
283 static_cast<TBranch*>(gAlice->TreeS()->GetListOfBranches()->FindObject("AliPHOSSDigitizer")) ;
284 const char * sdigitsTitle = sdigitsBranch ->GetTitle() ;
285 const char * sdigitizerTitle = sdigitizerBranch ->GetTitle() ;
286 if ( stitle.CompareTo(sdigitsTitle)==0 || stitle.CompareTo(sdigitizerTitle)==0 ){
287 cerr << "ERROR: AliPHOSSdigitizer::SetSDigitsBranch -> Cannot overwrite existing branch with title " << title << endl ;
291 cout << "AliPHOSSdigitizer::SetSDigitsBranch -> Changing SDigits file from " << GetName() << " to " << title << endl ;
295 // Post to the WhiteBoard
296 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
297 gime->PostSDigits( title, GetTitle()) ;
300 //__________________________________________________________________
301 void AliPHOSSDigitizer::SetSplitFile(const TString splitFileName)
303 // Diverts the SDigits in a file separate from the hits file
305 TDirectory * cwd = gDirectory ;
307 if ( !(gAlice->GetTreeSFileName() == splitFileName) ) {
308 if (gAlice->GetTreeSFile() )
309 gAlice->GetTreeSFile()->Close() ;
312 fSplitFile = gAlice->InitTreeFile("S",splitFileName.Data());
314 if ( !fSplitFile->Get("gAlice") )
317 TTree *treeE = gAlice->TreeE();
319 cerr << "ERROR: AliPHOSSDigitizer::SetSPlitFile -> No TreeE found "<<endl;
324 if ( !fSplitFile->Get("TreeE") ) {
325 AliHeader *header = new AliHeader();
326 treeE->SetBranchAddress("Header", &header);
327 treeE->SetBranchStatus("*",1);
328 TTree *treeENew = treeE->CloneTree();
333 if ( !fSplitFile->Get("AliceGeom") ) {
334 TGeometry *AliceGeom = static_cast<TGeometry*>(cwd->Get("AliceGeom"));
336 cerr << "ERROR: AliPHOSSDigitizer::SetSPlitFile -> AliceGeom was not found in the input file "<<endl;
343 gAlice->MakeTree("S",fSplitFile);
344 cout << "INFO: AliPHOSSDigitizer::SetSPlitFile -> SDigits will be stored in " << splitFileName.Data() << endl ;
347 //__________________________________________________________________
348 void AliPHOSSDigitizer::Print(Option_t* option)const
350 // Prints parameters of SDigitizer
351 cout << "------------------- "<< GetName() << " -------------" << endl ;
352 cout << " Writing SDigits to branch with title " << GetName() << endl ;
353 cout << " with digitization parameters A = " << fA << endl ;
354 cout << " B = " << fB << endl ;
355 cout << " Threshold for Primary assignment= " << fPrimThreshold << endl ;
356 cout << "---------------------------------------------------"<<endl ;
359 //__________________________________________________________________
360 Bool_t AliPHOSSDigitizer::operator==( AliPHOSSDigitizer const &sd )const
363 // SDititizers are equal if their pedestal, slope and threshold are equal
365 if( (fA==sd.fA)&&(fB==sd.fB)&&(fPrimThreshold==sd.fPrimThreshold))
370 //__________________________________________________________________
371 //__________________________________________________________________
372 void AliPHOSSDigitizer::PrintSDigits(Option_t * option)
374 // Prints list of digits produced in the current pass of AliPHOSDigitizer
377 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
378 TString sdname(GetName()) ;
379 sdname.Remove(sdname.Index(GetTitle())-1) ;
380 const TClonesArray * sdigits = gime->SDigits(sdname.Data()) ;
382 cout << "AliPHOSSDigitiser: event " << gAlice->GetEvNumber() << endl ;
383 cout << " Number of entries in SDigits list " << sdigits->GetEntriesFast() << endl ;
385 if(strstr(option,"all")||strstr(option,"EMC")){
388 AliPHOSDigit * digit;
389 cout << "EMC sdigits " << endl ;
390 cout << "Digit Id Amplitude Index Nprim Primaries list " << endl;
391 Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
393 for (index = 0 ; (index < sdigits->GetEntriesFast()) &&
394 (((AliPHOSDigit * ) sdigits->At(index))->GetId() <= maxEmc) ; index++) {
395 digit = (AliPHOSDigit * ) sdigits->At(index) ;
396 if(digit->GetNprimary() == 0) continue;
397 cout << setw(6) << digit->GetId() << " " << setw(10) << digit->GetAmp() << " "
398 << setw(6) << digit->GetIndexInList() << " "
399 << setw(5) << digit->GetNprimary() <<" ";
402 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
403 cout << setw(5) << digit->GetPrimary(iprimary+1) << " ";
409 if(strstr(option,"all")||strstr(option,"CPV")){
411 //loop over CPV digits
412 AliPHOSDigit * digit;
413 cout << "CPV sdigits " << endl ;
414 cout << "Digit Id Amplitude Index Nprim Primaries list " << endl;
415 Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
417 for (index = 0 ; index < sdigits->GetEntriesFast(); index++) {
418 digit = (AliPHOSDigit * ) sdigits->At(index) ;
419 if(digit->GetId() > maxEmc){
420 cout << setw(6) << digit->GetId() << " " << setw(10) << digit->GetAmp() << " "
421 << setw(6) << digit->GetIndexInList() << " "
422 << setw(5) << digit->GetNprimary() <<" ";
425 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
426 cout << setw(5) << digit->GetPrimary(iprimary+1) << " ";
434 //____________________________________________________________________________
435 void AliPHOSSDigitizer::UseHitsFrom(const char * filename)