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Mostly minor style modifications to be ready for cloning with EMCAL
[u/mrichter/AliRoot.git] / EMCAL / AliEMCALSDigitizer.cxx
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ffa6d63b 1/*************************************************************************
61e0abb5 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
ffa6d63b 21// from one in one tower of the EMCAL
61e0abb5 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//
ffa6d63b 44//*-- Author : Sahal Yacoob (LBL)
45// based on : AliPHOSSDigitzer
61e0abb5 46//////////////////////////////////////////////////////////////////////////////
47
48
49// --- ROOT system ---
50#include "TFile.h"
51#include "TTask.h"
52#include "TTree.h"
53#include "TSystem.h"
54#include "TROOT.h"
55#include "TFolder.h"
106fc2fa 56#include "TGeometry.h"
61e0abb5 57#include "TBenchmark.h"
58// --- Standard library ---
59#include <iomanip.h>
60
61// --- AliRoot header files ---
62#include "AliRun.h"
106fc2fa 63#include "AliHeader.h"
61e0abb5 64#include "AliEMCALDigit.h"
65#include "AliEMCALHit.h"
66#include "AliEMCALSDigitizer.h"
67#include "AliEMCALGeometry.h"
68#include "AliEMCALv1.h"
814ad4bf 69#include "AliEMCALGetter.h"
61e0abb5 70
71ClassImp(AliEMCALSDigitizer)
72
73
74//____________________________________________________________________________
75 AliEMCALSDigitizer::AliEMCALSDigitizer():TTask("AliEMCALSDigitizer","")
76{
77 // ctor
839828a6 78 InitParameters() ;
92f521a9 79 fDefaultInit = kTRUE ;
61e0abb5 80}
81
82//____________________________________________________________________________
814ad4bf 83AliEMCALSDigitizer::AliEMCALSDigitizer(const char* headerFile, const char *sDigitsTitle):TTask(sDigitsTitle, headerFile)
61e0abb5 84{
85 // ctor
839828a6 86 InitParameters() ;
814ad4bf 87 Init();
92f521a9 88 fDefaultInit = kFALSE ;
61e0abb5 89}
90
91//____________________________________________________________________________
92AliEMCALSDigitizer::~AliEMCALSDigitizer()
93{
94 // dtor
92f521a9 95 // fDefaultInit = kTRUE if SDigitizer created by default ctor (to get just the parameters)
96
97 if (!fDefaultInit) {
98 AliEMCALGetter * gime = AliEMCALGetter::GetInstance() ;
99
839828a6 100 // remove the task from the folder list
101 gime->RemoveTask("S",GetName()) ;
102
103 TString name(GetName()) ;
104 if (! name.IsNull() )
105 if (name.Index(":") > 0)
106 name.Remove(name.Index(":")) ;
107
108 // remove the Hits from the folder list
109 gime->RemoveObjects("H",name) ;
110
111 // remove the SDigits from the folder list
112 gime->RemoveObjects("S", name) ;
113
114 // Close the root file
115 gime->CloseFile() ;
116
117 }
118 fSplitFile = 0 ;
61e0abb5 119}
36657114 120
61e0abb5 121//____________________________________________________________________________
122void AliEMCALSDigitizer::Init(){
61e0abb5 123
814ad4bf 124 // Initialization: open root-file, allocate arrays for hits and sdigits,
36657114 125 // attach task SDigitizer to the list of EMCAL tasks
814ad4bf 126 //
127 // Initialization can not be done in the default constructor
128 //============================================================= YS
129 // The initialisation is now done by the getter
61e0abb5 130
36657114 131 if( strcmp(GetTitle(), "") == 0 )
814ad4bf 132 SetTitle("galice.root") ;
36657114 133
814ad4bf 134 AliEMCALGetter * gime = AliEMCALGetter::GetInstance(GetTitle(), GetName(), "update") ;
135 if ( gime == 0 ) {
136 cerr << "ERROR: AliEMCALSDigitizer::Init -> Could not obtain the Getter object !" << endl ;
137 return ;
138 }
139
140 gime->PostSDigits( GetName(), GetTitle() ) ;
61e0abb5 141
814ad4bf 142 TString sdname(GetName() );
143 sdname.Append(":") ;
144 sdname.Append(GetTitle() ) ;
97f3344e 145 SetName(sdname.Data()) ;
814ad4bf 146 gime->PostSDigitizer(this) ;
147
814ad4bf 148
839828a6 149}
150
151//____________________________________________________________________________
152void AliEMCALSDigitizer::InitParameters(){
153 fA = 0;
154 fB = 10000000.;
155 fTowerPrimThreshold = 0.01 ;
156 fPreShowerPrimThreshold = 0.0001 ;
157 fNevents = 0 ;
158 fPhotonElectronFactor = 5000. ; // photoelectrons per GeV
159 fSplitFile = 0 ;
160
161}
162
61e0abb5 163//____________________________________________________________________________
164void AliEMCALSDigitizer::Exec(Option_t *option) {
61e0abb5 165
814ad4bf 166// Collects all hits in the same active volume into digit
167
168 if( strcmp(GetName(), "") == 0 )
169 Init() ;
61e0abb5 170
814ad4bf 171 if (strstr(option, "print") ) {
172 Print("") ;
173 return ;
174 }
61e0abb5 175
814ad4bf 176 if(strstr(option,"tim"))
177 gBenchmark->Start("EMCALSDigitizer");
97f3344e 178
179
814ad4bf 180 //Check, if this branch already exits
181 gAlice->GetEvent(0) ;
97f3344e 182
183 TString sdname(GetName()) ;
184 sdname.Remove(sdname.Index(GetTitle())-1) ;
185
814ad4bf 186 if(gAlice->TreeS() ) {
187 TObjArray * lob = static_cast<TObjArray*>(gAlice->TreeS()->GetListOfBranches()) ;
188 TIter next(lob) ;
189 TBranch * branch = 0 ;
190 Bool_t emcalfound = kFALSE, sdigitizerfound = kFALSE ;
61e0abb5 191
97f3344e 192 while ( (branch = (static_cast<TBranch*>(next()))) && (!emcalfound || !sdigitizerfound) ) {
36657114 193 TString thisName( GetName() ) ;
194 TString branchName( branch->GetTitle() ) ;
195 branchName.Append(":") ;
196 if ( (strcmp(branch->GetName(), "EMCAL")==0) && thisName.BeginsWith(branchName) )
814ad4bf 197 emcalfound = kTRUE ;
198
36657114 199 else if ( (strcmp(branch->GetName(), "AliEMCALSDigitizer")==0) && thisName.BeginsWith(branchName) )
814ad4bf 200 sdigitizerfound = kTRUE ;
61e0abb5 201 }
202
814ad4bf 203 if ( emcalfound || sdigitizerfound ) {
204 cerr << "WARNING: AliEMCALSDigitizer::Exec -> SDigits and/or SDigitizer branch with name " << GetName()
205 << " already exits" << endl ;
206 return ;
207 }
208 }
97f3344e 209
814ad4bf 210 AliEMCALGetter * gime = AliEMCALGetter::GetInstance() ;
814ad4bf 211 Int_t nevents = (Int_t) gAlice->TreeE()->GetEntries() ;
212
213 Int_t ievent ;
214 for(ievent = 0; ievent < nevents; ievent++){
215 gime->Event(ievent,"H") ;
216 const TClonesArray * fHits = gime->Hits() ;
217 TClonesArray * sdigits = gime->SDigits(sdname.Data()) ;
218 sdigits->Clear();
61e0abb5 219 Int_t nSdigits = 0 ;
814ad4bf 220
221 //Collects all hits in the same active volume into digit
222
223
61e0abb5 224
225
226 //Now made SDigits from hits, for EMCAL it is the same, so just copy
814ad4bf 227 // Int_t itrack ;
228 // for (itrack=0; itrack < gAlice->GetNtrack(); itrack++){
229 //gime->Track(itrack);
61e0abb5 230 //=========== Get the EMCAL branch from Hits Tree for the Primary track itrack
89e103bd 231
61e0abb5 232 Int_t i;
e1f60236 233 for ( i = 0 ; i < fHits->GetEntries() ; i++ ) { // loop over all hits (hit = deposited energy/layer/entering particle)
234 AliEMCALHit * hit = dynamic_cast<AliEMCALHit*>(fHits->At(i)) ;
235 AliEMCALDigit * curSDigit = 0 ;
236 AliEMCALDigit * sdigit = 0 ;
ffa6d63b 237 Bool_t newsdigit = kTRUE;
e1f60236 238
89e103bd 239
240
e1f60236 241 // Assign primary number only if deposited energy is significant
242
89e103bd 243 if( (!hit->IsInPreShower() && hit->GetEnergy() > fTowerPrimThreshold) ||
244 (hit->IsInPreShower() && hit->GetEnergy() > fPreShowerPrimThreshold)) {
245 curSDigit = new AliEMCALDigit( hit->GetPrimary(),
e1f60236 246 hit->GetIparent(),Layer2TowerID(hit->GetId(),hit->IsInPreShower()),
89e103bd 247 Digitize(hit->GetEnergy()),
814ad4bf 248 hit->GetTime()) ;
89e103bd 249 } else {
814ad4bf 250 curSDigit = new AliEMCALDigit( -1 ,
251 -1 ,
e1f60236 252 Layer2TowerID(hit->GetId(),hit->IsInPreShower()),
89e103bd 253 Digitize(hit->GetEnergy()),
e1f60236 254 hit->GetTime() ) ;
89e103bd 255 }
e1f60236 256 Int_t check = 0 ;
257 for(check= 0; check < nSdigits ; check++) {
814ad4bf 258 sdigit = (AliEMCALDigit *)sdigits->At(check);
e1f60236 259 if( sdigit->GetId() == curSDigit->GetId()) { // Are we in the same tower or the same preshower ?
260 *sdigit = *sdigit + *curSDigit;
261
262 newsdigit = kFALSE;
263 }
814ad4bf 264 }
e1f60236 265 if (newsdigit) {
266 new((*sdigits)[nSdigits]) AliEMCALDigit(*curSDigit);
ffa6d63b 267 nSdigits++ ;
e1f60236 268 }
269 } // loop over all hits (hit = deposited energy/layer/entering particle)
814ad4bf 270 // } // loop over tracks
e1f60236 271
814ad4bf 272 sdigits->Sort() ;
61e0abb5 273
814ad4bf 274 nSdigits = sdigits->GetEntriesFast() ;
106fc2fa 275 if (nSdigits > 0) {
276 sdigits->Expand(nSdigits) ;
277
278 // Int_t i ;
279 const AliEMCALGeometry * geom = gime->EMCALGeometry() ;
280
281 Int_t lastPreShowerIndex = nSdigits - 1 ;
282 if (!(dynamic_cast<AliEMCALDigit *>(sdigits->At(lastPreShowerIndex))->IsInPreShower()))
283 lastPreShowerIndex = -2;
284 Int_t firstPreShowerIndex = 100000 ;
285 Int_t index ;
286 AliEMCALDigit * sdigit = 0 ;
287 for ( index = 0; index < nSdigits ; index++) {
288 sdigit = dynamic_cast<AliEMCALDigit *>(sdigits->At(index) ) ;
289 if (sdigit->IsInPreShower() ){
290 firstPreShowerIndex = index ;
291 break ;
292 }
293 }
294
295 AliEMCALDigit * preshower ;
296 AliEMCALDigit * tower ;
297 Int_t lastIndex = lastPreShowerIndex +1 ;
298
299
300 for (index = firstPreShowerIndex ; index <= lastPreShowerIndex; index++) {
301 preshower = dynamic_cast<AliEMCALDigit *>(sdigits->At(index) );
302 Bool_t towerFound = kFALSE ;
303 Int_t jndex ;
304 for (jndex = 0; jndex < firstPreShowerIndex; jndex++) {
305 tower = dynamic_cast<AliEMCALDigit *>(sdigits->At(jndex) );
306 if ( (preshower->GetId() - (geom->GetNZ() * geom->GetNPhi()) ) == tower->GetId() ) {
307 Float_t towerEnergy = static_cast<Float_t>(tower->GetAmp()) ;
308 Float_t preshoEnergy = static_cast<Float_t>(preshower->GetAmp()) ;
309 towerEnergy +=preshoEnergy ;
310 *tower = *tower + *preshower ; // and add preshower multiplied by layer ratio to tower
311 tower->SetAmp(static_cast<Int_t>(TMath::Ceil(towerEnergy))) ;
312 towerFound = kTRUE ;
313 }
314 }
315 if ( !towerFound ) {
316
317 new((*sdigits)[lastIndex]) AliEMCALDigit(*preshower);
318 AliEMCALDigit * temp = dynamic_cast<AliEMCALDigit *>(sdigits->At(lastIndex)) ;
319 temp->SetId(temp->GetId() - (geom->GetNZ() * geom->GetNPhi()) ) ;
320 lastIndex++ ;
321 }
322 }
323
324 sdigits->Sort() ;
325 Int_t NPrimarymax = -1 ;
326 for (i = 0 ; i < sdigits->GetEntriesFast() ; i++) {
327 sdigit = dynamic_cast<AliEMCALDigit *>(sdigits->At(i)) ;
328 sdigit->SetIndexInList(i) ;
329 }
330
331 for (i = 0 ; i < sdigits->GetEntriesFast() ; i++) {
332 if (((dynamic_cast<AliEMCALDigit *>(sdigits->At(i)))->GetNprimary()) > NPrimarymax)
333 NPrimarymax = ((dynamic_cast<AliEMCALDigit *>(sdigits->At(i)))->GetNprimary()) ;
e1f60236 334 }
335 }
106fc2fa 336 if(gAlice->TreeS() == 0)
36657114 337 gAlice->MakeTree("S",fSplitFile);
338
814ad4bf 339 //First list of sdigits
340 Int_t bufferSize = 32000 ;
341 TBranch * sdigitsBranch = gAlice->TreeS()->Branch("EMCAL",&sdigits,bufferSize);
342 sdigitsBranch->SetTitle(sdname);
814ad4bf 343
814ad4bf 344 //second - SDigitizer
345 Int_t splitlevel = 0 ;
346 AliEMCALSDigitizer * sd = this ;
347 TBranch * sdigitizerBranch = gAlice->TreeS()->Branch("AliEMCALSDigitizer","AliEMCALSDigitizer",
348 &sd,bufferSize,splitlevel);
349 sdigitizerBranch->SetTitle(sdname);
814ad4bf 350
36657114 351 sdigitsBranch->Fill() ;
352 sdigitizerBranch->Fill() ;
106fc2fa 353 gAlice->TreeS()->AutoSave() ;
36657114 354
814ad4bf 355 if(strstr(option,"deb"))
356 PrintSDigits(option) ;
357
61e0abb5 358 }
359
360 if(strstr(option,"tim")){
361 gBenchmark->Stop("EMCALSDigitizer");
362 cout << "AliEMCALSDigitizer:" << endl ;
363 cout << " took " << gBenchmark->GetCpuTime("EMCALSDigitizer") << " seconds for SDigitizing "
364 << gBenchmark->GetCpuTime("EMCALSDigitizer")/fNevents << " seconds per event " << endl ;
365 cout << endl ;
366 }
367
368
369}
370//__________________________________________________________________
371void AliEMCALSDigitizer::SetSDigitsBranch(const char * title ){
814ad4bf 372
373 // Setting title to branch SDigits
374
375 TString stitle(title) ;
376
377 // check if branch with title already exists
378 TBranch * sdigitsBranch =
379 static_cast<TBranch*>(gAlice->TreeS()->GetListOfBranches()->FindObject("EMCAL")) ;
380 TBranch * sdigitizerBranch =
381 static_cast<TBranch*>(gAlice->TreeS()->GetListOfBranches()->FindObject("AliEMCALSDigitizer")) ;
382 const char * sdigitsTitle = sdigitsBranch ->GetTitle() ;
383 const char * sdigitizerTitle = sdigitizerBranch ->GetTitle() ;
384 if ( stitle.CompareTo(sdigitsTitle)==0 || stitle.CompareTo(sdigitizerTitle)==0 ){
385 cerr << "ERROR: AliEMCALSdigitizer::SetSDigitsBranch -> Cannot overwrite existing branch with title " << title << endl ;
386 return ;
387 }
388
389 cout << "AliEMCALSdigitizer::SetSDigitsBranch -> Changing SDigits file from " << GetName() << " to " << title << endl ;
390
391 SetName(title) ;
392
393 // Post to the WhiteBoard
394 AliEMCALGetter * gime = AliEMCALGetter::GetInstance() ;
395 gime->PostSDigits( title, GetTitle()) ;
396
397
61e0abb5 398}
106fc2fa 399
400//__________________________________________________________________
36657114 401void AliEMCALSDigitizer::SetSplitFile(const TString splitFileName)
106fc2fa 402{
403 // Diverts the SDigits in a file separate from the hits file
404
405 TDirectory * cwd = gDirectory ;
36657114 406
407 if ( !(gAlice->GetTreeSFileName() == splitFileName) ) {
408 if (gAlice->GetTreeSFile() )
409 gAlice->GetTreeSFile()->Close() ;
410 }
411
412 fSplitFile = gAlice->InitTreeFile("S",splitFileName.Data());
413 fSplitFile->cd() ;
839828a6 414 gAlice->Write(0, TObject::kOverwrite);
415
106fc2fa 416 TTree *treeE = gAlice->TreeE();
417 if (!treeE) {
36657114 418 cerr << "ERROR: AliEMCALSDigitizer::SetSPlitFile -> No TreeE found "<<endl;
419 abort() ;
106fc2fa 420 }
421
422 // copy TreeE
839828a6 423
424 AliHeader *header = new AliHeader();
425 treeE->SetBranchAddress("Header", &header);
426 treeE->SetBranchStatus("*",1);
427 TTree *treeENew = treeE->CloneTree();
428 treeENew->Write(0, TObject::kOverwrite);
106fc2fa 429
430 // copy AliceGeom
839828a6 431 TGeometry *AliceGeom = static_cast<TGeometry*>(cwd->Get("AliceGeom"));
432 if (!AliceGeom) {
433 cerr << "ERROR: AliEMCALSDigitizer::SetSPlitFile -> AliceGeom was not found in the input file "<<endl;
434 abort() ;
106fc2fa 435 }
839828a6 436 AliceGeom->Write(0, TObject::kOverwrite) ;
36657114 437
438 gAlice->MakeTree("S",fSplitFile);
106fc2fa 439 cwd->cd() ;
36657114 440 cout << "INFO: AliEMCALSDigitizer::SetSPlitFile -> SDigits will be stored in " << splitFileName.Data() << endl ;
106fc2fa 441}
442
61e0abb5 443//__________________________________________________________________
444void AliEMCALSDigitizer::Print(Option_t* option)const{
445 cout << "------------------- "<< GetName() << " -------------" << endl ;
814ad4bf 446 cout << " Writing SDigitis to branch with title " << GetName() << endl ;
89e103bd 447 cout << " with digitization parameters A = " << fA << endl ;
448 cout << " B = " << fB << endl ;
449 cout << " Threshold for Primary assignment in Tower = " << fTowerPrimThreshold << endl ;
450 cout << " Threshold for Primary assignment in PreShower = " << fPreShowerPrimThreshold << endl ;
61e0abb5 451 cout << "---------------------------------------------------"<<endl ;
452
453}
454//__________________________________________________________________
455Bool_t AliEMCALSDigitizer::operator==( AliEMCALSDigitizer const &sd )const{
89e103bd 456 if( (fA==sd.fA)&&(fB==sd.fB)&&
457 (fTowerPrimThreshold==sd.fTowerPrimThreshold) &&
458 (fPreShowerPrimThreshold==sd.fPreShowerPrimThreshold))
61e0abb5 459 return kTRUE ;
460 else
461 return kFALSE ;
462}
463//__________________________________________________________________
464void AliEMCALSDigitizer::PrintSDigits(Option_t * option){
465 //Prints list of digits produced at the current pass of AliEMCALDigitizer
466
814ad4bf 467 AliEMCALGetter * gime = AliEMCALGetter::GetInstance() ;
468 TString sdname(GetName()) ;
469 sdname.Remove(sdname.Index(GetTitle())-1) ;
470 const TClonesArray * sdigits = gime->SDigits(sdname.Data()) ;
61e0abb5 471
814ad4bf 472 cout << "AliEMCALSDigitiser: event " << gAlice->GetEvNumber() << endl ;
473 cout << " Number of entries in SDigits list " << sdigits->GetEntriesFast() << endl ;
474 cout << endl ;
475 if(strstr(option,"all")||strstr(option,"EMC")){
476
61e0abb5 477 //loop over digits
478 AliEMCALDigit * digit;
e1f60236 479 cout << "SDigit Id " << " Amplitude " << " Time " << " Index " << " Nprim " << " Primaries list " << endl;
61e0abb5 480 Int_t index ;
814ad4bf 481 for (index = 0 ; index < sdigits->GetEntries() ; index++) {
482 digit = (AliEMCALDigit * ) sdigits->At(index) ;
483 cout << setw(6) << digit->GetId() << " " << setw(10) << digit->GetAmp() << " " << digit->GetTime()
484 << setw(6) << digit->GetIndexInList() << " "
485 << setw(5) << digit->GetNprimary() <<" ";
61e0abb5 486
487 Int_t iprimary;
488 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
814ad4bf 489 cout << " " << digit->GetPrimary(iprimary+1) << " ";
61e0abb5 490 cout << endl;
491 }
814ad4bf 492 cout <<endl;
61e0abb5 493 }
494}
814ad4bf 495//________________________________________________________________________
229f77c4 496Int_t AliEMCALSDigitizer::Layer2TowerID(Int_t ihit, Bool_t preshower){
497 // Method to Transform from Hit Id to Digit Id
498 // This function should be one to one
814ad4bf 499 AliEMCALGetter * gime = AliEMCALGetter::GetInstance() ;
500 const AliEMCALGeometry * geom = gime->EMCALGeometry();
f063936c 501 Int_t ieta = ((ihit-1)/geom->GetNPhi())%geom->GetNZ(); // eta Tower Index
229f77c4 502 Int_t iphi = (ihit-1)%(geom->GetNPhi())+1; //phi Tower Index
503 Int_t it = -10;
504 Int_t ipre = 0;
814ad4bf 505
229f77c4 506 if (preshower)ipre = 1;
507 if (iphi > 0 && ieta >= 0){
508 it = iphi+ieta*geom->GetNPhi() + ipre*geom->GetNPhi()*geom->GetNZ();
509 return it;
510 }else{
511 cerr << " AliEMCALSDigitizer::Layer2TowerID() -- there is an error "<< endl << "Eta number = "
512 << ieta << "Phi number = " << iphi << endl ;
513 return it;
514 } // end if iphi>0 && ieta>0
814ad4bf 515}
229f77c4 516//_______________________________________________________________________________________
89e103bd 517// void AliEMCALSDigitizer::TestTowerID(void)
518// {
519// Int_t j;
229f77c4 520
89e103bd 521// Bool_t preshower = kFALSE;
522// for (j = 0 ; j < 10 ; j++){ // loop over hit id
523// Int_t i;
524// for (i = 0 ; i <= 2 ; i++){ // loop over
525// Int_t k = i*96*144+j*144+1;
526// cout << " Hit Index = " << k << " " << j*10 << " TOWERID = " << Layer2TowerID(k, preshower) << endl ;
527// }
528// }
529// }