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[u/mrichter/AliRoot.git] / PHOS / AliPHOSClusterizerv1.cxx
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d15a28e7 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
b2a60966 16/* $Id$ */
17
d72dfbc3 18/* $Log:
19 1 October 2000. Yuri Kharlov:
20 AreNeighbours()
21 PPSD upper layer is considered if number of layers>1
22
23 18 October 2000. Yuri Kharlov:
24 AliPHOSClusterizerv1()
25 CPV clusterizing parameters added
26
27 MakeClusters()
28 After first PPSD digit remove EMC digits only once
29*/
9a1398dd 30//*-- Author: Yves Schutz (SUBATECH) & Dmitri Peressounko (SUBATECH & Kurchatov Institute)
d15a28e7 31//////////////////////////////////////////////////////////////////////////////
9a1398dd 32// Clusterization class. Performs clusterization (collects neighbouring active cells) and
a4e98857 33// unfolds the clusters having several local maxima.
34// Results are stored in TreeR#, branches PHOSEmcRP (EMC recPoints),
9a1398dd 35// PHOSCpvRP (CPV RecPoints) and AliPHOSClusterizer (Clusterizer with all
f035f6ce 36// parameters including input digits branch title, thresholds etc.)
a4e98857 37// This TTask is normally called from Reconstructioner, but can as well be used in
38// standalone mode.
39// Use Case:
fc12304f 40// root [0] AliPHOSClusterizerv1 * cl = new AliPHOSClusterizerv1("galice.root", "recpointsname", "digitsname")
a4e98857 41// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
fc12304f 42// // reads gAlice from header file "galice.root", uses digits stored in the branch names "digitsname" (default = "Default")
43// // and saves recpoints in branch named "recpointsname" (default = "digitsname")
a4e98857 44// root [1] cl->ExecuteTask()
9a1398dd 45// //finds RecPoints in all events stored in galice.root
a4e98857 46// root [2] cl->SetDigitsBranch("digits2")
f035f6ce 47// //sets another title for Digitis (input) branch
a4e98857 48// root [3] cl->SetRecPointsBranch("recp2")
f035f6ce 49// //sets another title four output branches
a4e98857 50// root [4] cl->SetEmcLocalMaxCut(0.03)
9a1398dd 51// //set clusterization parameters
a4e98857 52// root [5] cl->ExecuteTask("deb all time")
9a1398dd 53// //once more finds RecPoints options are
54// // deb - print number of found rec points
55// // deb all - print number of found RecPoints and some their characteristics
56// // time - print benchmarking results
ed4205d8 57
d15a28e7 58// --- ROOT system ---
59
9a1398dd 60#include "TROOT.h"
61#include "TFile.h"
62#include "TFolder.h"
d15a28e7 63#include "TMath.h"
9a1398dd 64#include "TMinuit.h"
65#include "TTree.h"
66#include "TSystem.h"
67#include "TBenchmark.h"
d15a28e7 68
69// --- Standard library ---
70
d15a28e7 71// --- AliRoot header files ---
d15a28e7 72#include "AliPHOSClusterizerv1.h"
9a1398dd 73#include "AliPHOSCpvRecPoint.h"
d15a28e7 74#include "AliPHOSDigit.h"
9a1398dd 75#include "AliPHOSDigitizer.h"
d15a28e7 76#include "AliPHOSEmcRecPoint.h"
9a1398dd 77#include "AliPHOS.h"
7b7c1533 78#include "AliPHOSGetter.h"
9a1398dd 79#include "AliRun.h"
bed9e3fb 80#include "AliPHOSCalibrManager.h"
81#include "AliPHOSCalibrationData.h"
d15a28e7 82
83ClassImp(AliPHOSClusterizerv1)
f035f6ce 84
d15a28e7 85//____________________________________________________________________________
7b7c1533 86 AliPHOSClusterizerv1::AliPHOSClusterizerv1() : AliPHOSClusterizer()
d15a28e7 87{
f035f6ce 88 // default ctor (to be used mainly by Streamer)
f035f6ce 89
8d0f3f77 90 InitParameters() ;
92f521a9 91 fDefaultInit = kTRUE ;
9a1398dd 92}
7b7c1533 93
9a1398dd 94//____________________________________________________________________________
fbf811ec 95AliPHOSClusterizerv1::AliPHOSClusterizerv1(const char* headerFile,const char* name, const Bool_t toSplit)
96:AliPHOSClusterizer(headerFile, name, toSplit)
9a1398dd 97{
a4e98857 98 // ctor with the indication of the file where header Tree and digits Tree are stored
9a1398dd 99
8d0f3f77 100 InitParameters() ;
2bd5457f 101 Init() ;
92f521a9 102 fDefaultInit = kFALSE ;
9a1398dd 103
104}
fc12304f 105
9688c1dd 106//____________________________________________________________________________
107 AliPHOSClusterizerv1::~AliPHOSClusterizerv1()
108{
0bc3b8ed 109 // dtor
110
bed9e3fb 111 delete fPedestals ;
112 delete fGains ;
113
548f0134 114 fSplitFile = 0 ;
8d0f3f77 115
9688c1dd 116}
fc12304f 117
118//____________________________________________________________________________
119const TString AliPHOSClusterizerv1::BranchName() const
120{
0bc3b8ed 121 // Returns branch name of the AliPHOSClusterizer
122
fc12304f 123 TString branchName(GetName() ) ;
124 branchName.Remove(branchName.Index(Version())-1) ;
125 return branchName ;
126}
127
9a1398dd 128//____________________________________________________________________________
3758d9fc 129Float_t AliPHOSClusterizerv1::Calibrate(Int_t amp, Int_t absId) const
bed9e3fb 130{
0bc3b8ed 131 // Returns energy value in the cell absId with the digit amplitude amp
132
bed9e3fb 133 if(fPedestals || fGains ){ //use calibration data
134 if(!fPedestals || !fGains ){
135 Error("Calibrate","Either Pedestals of Gains not set!") ;
136 return 0 ;
137 }
138 Float_t en=(amp - fPedestals->Data(absId))*fGains->Data(absId) ;
139 if(en>0)
140 return en ;
141 else
142 return 0. ;
143 }
c2cd5471 144 else{ //simulation
145 if(absId <= fEmcCrystals) //calibrate as EMC
146 return fADCpedestalEmc + amp*fADCchanelEmc ;
147 else //calibrate as CPV
148 return fADCpedestalCpv+ amp*fADCchanelCpv ;
149 }
3758d9fc 150}
548f0134 151
3758d9fc 152//____________________________________________________________________________
a4e98857 153void AliPHOSClusterizerv1::Exec(Option_t * option)
154{
7b7c1533 155 // Steering method
7b7c1533 156 if( strcmp(GetName(), "")== 0 )
157 Init() ;
9a1398dd 158
159 if(strstr(option,"tim"))
7d493c2c 160 gBenchmark->Start("PHOSClusterizer");
9a1398dd 161
7b7c1533 162 if(strstr(option,"print"))
163 Print("") ;
164
127e12ac 165 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
fbf811ec 166 if(gime->BranchExists("RecPoints"))
167 return ;
bed9e3fb 168
169 //test, if this is real data:
170 TBranch * eh = gAlice->TreeE()->GetBranch("AliPHOSBeamTestEvent") ;
171 if(eh){ //Read CalibrationData
172 AliPHOSCalibrManager * cmngr=AliPHOSCalibrManager::GetInstance() ;
173 if(!cmngr){ //not defined yet
174 cmngr=AliPHOSCalibrManager::GetInstance("PHOSBTCalibration.root") ;
175 }
176 if(fPedestals)
177 delete fPedestals ;
178 fPedestals = new AliPHOSCalibrationData("Pedestals",fCalibrVersion) ;
179 cmngr->ReadFromRoot(*fPedestals,fCalibrRun) ;
180 if(fGains)
181 delete fGains ;
182 fGains = new AliPHOSCalibrationData("Gains",fCalibrVersion) ;
183 cmngr->ReadFromRoot(*fGains,fCalibrRun) ;
184 }
185
fbf811ec 186 Int_t nevents = gime->MaxEvent() ;
7b7c1533 187 Int_t ievent ;
fbf811ec 188
7b7c1533 189 for(ievent = 0; ievent < nevents; ievent++){
fbf811ec 190 gime->Event(ievent,"D") ;
bed9e3fb 191 Int_t pattern = gime->EventPattern() ;
192 if(pattern){
193 printf("pattern %d \n",pattern) ;
194 if(!fPatterns){
195 Error("Exec","Patterns for reconstruction of events are not set, use SetPatterns() ") ;
196 return ;
197 }
198 Bool_t skip = kTRUE ;
199 Int_t npat = fPatterns->GetSize() ;
200 for(Int_t i = 0; i<npat;i++)
201 if(pattern==fPatterns->At(i)){
202 skip = kFALSE ;
203 break ;
204 }
205 if(skip)
206 continue ;
207 }
208
fbf811ec 209 if(ievent == 0)
210 GetCalibrationParameters() ;
211
548f0134 212 fNumberOfEmcClusters = fNumberOfCpvClusters = 0 ;
213
9a1398dd 214 MakeClusters() ;
215
fc12304f 216 if(fToUnfold)
217 MakeUnfolding() ;
7b7c1533 218
219 WriteRecPoints(ievent) ;
220
94de8339 221 if(strstr(option,"deb"))
222 PrintRecPoints(option) ;
223
224 //increment the total number of digits per run
fbf811ec 225 fRecPointsInRun += gime->EmcRecPoints()->GetEntriesFast() ;
226 fRecPointsInRun += gime->CpvRecPoints()->GetEntriesFast() ;
94de8339 227 }
9a1398dd 228
229 if(strstr(option,"tim")){
230 gBenchmark->Stop("PHOSClusterizer");
21cd0c07 231 Info("Exec", " took %f seconds for Clusterizing %f seconds per event \n",
232 gBenchmark->GetCpuTime("PHOSClusterizer"),
233 gBenchmark->GetCpuTime("PHOSClusterizer")/nevents ) ;
9a1398dd 234 }
9a1398dd 235}
236
237//____________________________________________________________________________
a0636361 238Bool_t AliPHOSClusterizerv1::FindFit(AliPHOSEmcRecPoint * emcRP, AliPHOSDigit ** maxAt, Float_t * maxAtEnergy,
d1de15f5 239 Int_t nPar, Float_t * fitparameters) const
9a1398dd 240{
241 // Calls TMinuit to fit the energy distribution of a cluster with several maxima
a4e98857 242 // The initial values for fitting procedure are set equal to the positions of local maxima.
f035f6ce 243 // Cluster will be fitted as a superposition of nPar/3 electromagnetic showers
9a1398dd 244
7b7c1533 245 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
fbf811ec 246 TClonesArray * digits = gime->Digits() ;
7b7c1533 247
248
9a1398dd 249 gMinuit->mncler(); // Reset Minuit's list of paramters
250 gMinuit->SetPrintLevel(-1) ; // No Printout
251 gMinuit->SetFCN(AliPHOSClusterizerv1::UnfoldingChiSquare) ;
252 // To set the address of the minimization function
253
254 TList * toMinuit = new TList();
255 toMinuit->AddAt(emcRP,0) ;
7b7c1533 256 toMinuit->AddAt(digits,1) ;
9a1398dd 257
258 gMinuit->SetObjectFit(toMinuit) ; // To tranfer pointer to UnfoldingChiSquare
259
260 // filling initial values for fit parameters
261 AliPHOSDigit * digit ;
262
263 Int_t ierflg = 0;
264 Int_t index = 0 ;
265 Int_t nDigits = (Int_t) nPar / 3 ;
266
267 Int_t iDigit ;
268
7b7c1533 269 const AliPHOSGeometry * geom = gime->PHOSGeometry() ;
9a1398dd 270
271 for(iDigit = 0; iDigit < nDigits; iDigit++){
a0636361 272 digit = maxAt[iDigit];
9a1398dd 273
274 Int_t relid[4] ;
7b7c1533 275 Float_t x = 0.;
276 Float_t z = 0.;
277 geom->AbsToRelNumbering(digit->GetId(), relid) ;
278 geom->RelPosInModule(relid, x, z) ;
9a1398dd 279
280 Float_t energy = maxAtEnergy[iDigit] ;
281
282 gMinuit->mnparm(index, "x", x, 0.1, 0, 0, ierflg) ;
283 index++ ;
284 if(ierflg != 0){
21cd0c07 285 Warning("FindFit", "PHOS Unfolding unable to set initial value for fit procedure : x = %f\n", x ) ;
9a1398dd 286 return kFALSE;
287 }
288 gMinuit->mnparm(index, "z", z, 0.1, 0, 0, ierflg) ;
289 index++ ;
290 if(ierflg != 0){
21cd0c07 291 Warning("FindFit", "PHOS Unfolding unable to set initial value for fit procedure : z =%f\n", z ) ;
9a1398dd 292 return kFALSE;
293 }
294 gMinuit->mnparm(index, "Energy", energy , 0.05*energy, 0., 4.*energy, ierflg) ;
295 index++ ;
296 if(ierflg != 0){
21cd0c07 297 Warning("FindFit", "PHOS Unfolding unable to set initial value for fit procedure : energy = %f\n", energy ) ;
9a1398dd 298 return kFALSE;
299 }
300 }
301
302 Double_t p0 = 0.1 ; // "Tolerance" Evaluation stops when EDM = 0.0001*p0 ; The number of function call slightly
303 // depends on it.
304 Double_t p1 = 1.0 ;
305 Double_t p2 = 0.0 ;
306
307 gMinuit->mnexcm("SET STR", &p2, 0, ierflg) ; // force TMinuit to reduce function calls
308 gMinuit->mnexcm("SET GRA", &p1, 1, ierflg) ; // force TMinuit to use my gradient
309 gMinuit->SetMaxIterations(5);
310 gMinuit->mnexcm("SET NOW", &p2 , 0, ierflg) ; // No Warnings
311
312 gMinuit->mnexcm("MIGRAD", &p0, 0, ierflg) ; // minimize
313
314 if(ierflg == 4){ // Minimum not found
21cd0c07 315 Warning("FindFit", "PHOS Unfolding fit not converged, cluster abandoned\n" );
9a1398dd 316 return kFALSE ;
317 }
318 for(index = 0; index < nPar; index++){
319 Double_t err ;
320 Double_t val ;
321 gMinuit->GetParameter(index, val, err) ; // Returns value and error of parameter index
322 fitparameters[index] = val ;
323 }
324
325 delete toMinuit ;
326 return kTRUE;
c3c187e5 327
d15a28e7 328}
329
3758d9fc 330//____________________________________________________________________________
331void AliPHOSClusterizerv1::GetCalibrationParameters()
332{
0bc3b8ed 333 // Get calibration parameters from AliPHOSDigitizer
334
3758d9fc 335 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
fbf811ec 336
c2cd5471 337 const TTask * task = gime->Digitizer(BranchName()) ;
338 if(strcmp(task->IsA()->GetName(),"AliPHOSDigitizer")==0){
339 const AliPHOSDigitizer * dig = static_cast<const AliPHOSDigitizer *>(task) ;
340
341 fADCchanelEmc = dig->GetEMCchannel() ;
342 fADCpedestalEmc = dig->GetEMCpedestal();
343
344 fADCchanelCpv = dig->GetCPVchannel() ;
345 fADCpedestalCpv = dig->GetCPVpedestal() ;
346 }
347 else{
bed9e3fb 348 ;
349// fCalibrationDB = gime->CalibrationDB();
c2cd5471 350 }
3758d9fc 351}
548f0134 352
d15a28e7 353//____________________________________________________________________________
a4e98857 354void AliPHOSClusterizerv1::Init()
355{
2bd5457f 356 // Make all memory allocations which can not be done in default constructor.
357 // Attach the Clusterizer task to the list of PHOS tasks
7b7c1533 358
359 if ( strcmp(GetTitle(), "") == 0 )
360 SetTitle("galice.root") ;
2bd5457f 361
9688c1dd 362 TString branchname = GetName() ;
363 branchname.Remove(branchname.Index(Version())-1) ;
9a1398dd 364
fbf811ec 365 AliPHOSGetter * gime = AliPHOSGetter::GetInstance(GetTitle(),branchname.Data(), fToSplit ) ;
7b7c1533 366 if ( gime == 0 ) {
21cd0c07 367 Error("Init", "Could not obtain the Getter object !") ;
7b7c1533 368 return ;
369 }
fbf811ec 370
371 fSplitFile = 0 ;
372 if(fToSplit){
373 // construct the name of the file as /path/EMCAL.SDigits.root
374 //First - extract full path if necessary
375 TString fileName(GetTitle()) ;
376 Ssiz_t islash = fileName.Last('/') ;
377 if(islash<fileName.Length())
378 fileName.Remove(islash+1,fileName.Length()) ;
379 else
380 fileName="" ;
381 // Next - append the file name
382 fileName+="PHOS.RecData." ;
383 if((strcmp(branchname.Data(),"Default")!=0)&&(strcmp(branchname.Data(),"")!=0)){
384 fileName+=branchname ;
385 fileName+="." ;
386 }
387 fileName+="root" ;
388 // Finally - check if the file already opened or open the file
389 fSplitFile = static_cast<TFile*>(gROOT->GetFile(fileName.Data()));
390 if(!fSplitFile)
391 fSplitFile = TFile::Open(fileName.Data(),"update") ;
392 }
393
394
7b7c1533 395
3758d9fc 396 const AliPHOSGeometry * geom = gime->PHOSGeometry() ;
397 fEmcCrystals = geom->GetNModules() * geom->GetNCristalsInModule() ;
398
7b7c1533 399 if(!gMinuit)
400 gMinuit = new TMinuit(100) ;
fbf811ec 401
127e12ac 402 gime->PostClusterizer(this) ;
fc12304f 403 gime->PostRecPoints(branchname) ;
7b7c1533 404
9a1398dd 405}
7b7c1533 406
8d0f3f77 407//____________________________________________________________________________
408void AliPHOSClusterizerv1::InitParameters()
409{
0bc3b8ed 410 // Set initial parameters for clusterization
8d0f3f77 411
412 fNumberOfCpvClusters = 0 ;
413 fNumberOfEmcClusters = 0 ;
414
415 fCpvClusteringThreshold = 0.0;
416 fEmcClusteringThreshold = 0.2;
417
418 fEmcLocMaxCut = 0.03 ;
419 fCpvLocMaxCut = 0.03 ;
420
421 fW0 = 4.5 ;
422 fW0CPV = 4.0 ;
423
424 fEmcTimeGate = 1.e-8 ;
425
426 fToUnfold = kTRUE ;
092b50ba 427
428 fPurifyThreshold = 0.012 ;
429
bed9e3fb 430 fPedestals = 0 ;
431 fGains = 0 ;
432 fCalibrVersion= "v1" ;
433 fCalibrRun = 1 ;
434 fPatterns = 0 ;
435
8d0f3f77 436 TString clusterizerName( GetName()) ;
437 if (clusterizerName.IsNull() )
438 clusterizerName = "Default" ;
439 clusterizerName.Append(":") ;
440 clusterizerName.Append(Version()) ;
441 SetName(clusterizerName) ;
442 fRecPointsInRun = 0 ;
c2cd5471 443
8d0f3f77 444
445}
446
9a1398dd 447//____________________________________________________________________________
448Int_t AliPHOSClusterizerv1::AreNeighbours(AliPHOSDigit * d1, AliPHOSDigit * d2)const
d15a28e7 449{
b2a60966 450 // Gives the neighbourness of two digits = 0 are not neighbour but continue searching
451 // = 1 are neighbour
452 // = 2 are not neighbour but do not continue searching
a4e98857 453 // neighbours are defined as digits having at least a common vertex
b2a60966 454 // The order of d1 and d2 is important: first (d1) should be a digit already in a cluster
455 // which is compared to a digit (d2) not yet in a cluster
456
7b7c1533 457 const AliPHOSGeometry * geom = AliPHOSGetter::GetInstance()->PHOSGeometry() ;
458
d15a28e7 459 Int_t rv = 0 ;
460
d15a28e7 461 Int_t relid1[4] ;
7b7c1533 462 geom->AbsToRelNumbering(d1->GetId(), relid1) ;
d15a28e7 463
464 Int_t relid2[4] ;
7b7c1533 465 geom->AbsToRelNumbering(d2->GetId(), relid2) ;
d15a28e7 466
9688c1dd 467 if ( (relid1[0] == relid2[0]) && (relid1[1]==relid2[1]) ) { // inside the same PHOS module
92862013 468 Int_t rowdiff = TMath::Abs( relid1[2] - relid2[2] ) ;
469 Int_t coldiff = TMath::Abs( relid1[3] - relid2[3] ) ;
d15a28e7 470
92862013 471 if (( coldiff <= 1 ) && ( rowdiff <= 1 )){
9688c1dd 472 if((relid1[1] != 0) || (TMath::Abs(d1->GetTime() - d2->GetTime() ) < fEmcTimeGate))
d15a28e7 473 rv = 1 ;
474 }
475 else {
476 if((relid2[2] > relid1[2]) && (relid2[3] > relid1[3]+1))
477 rv = 2; // Difference in row numbers is too large to look further
478 }
479
480 }
481 else {
482
9688c1dd 483 if( (relid1[0] < relid2[0]) || (relid1[1] != relid2[1]) )
d15a28e7 484 rv=2 ;
485
486 }
d72dfbc3 487
d15a28e7 488 return rv ;
489}
490
d15a28e7 491
492//____________________________________________________________________________
9a1398dd 493Bool_t AliPHOSClusterizerv1::IsInEmc(AliPHOSDigit * digit) const
d15a28e7 494{
b2a60966 495 // Tells if (true) or not (false) the digit is in a PHOS-EMC module
496
9f616d61 497 Bool_t rv = kFALSE ;
7b7c1533 498 const AliPHOSGeometry * geom = AliPHOSGetter::GetInstance()->PHOSGeometry() ;
d15a28e7 499
2b629790 500 Int_t nEMC = geom->GetNModules()*geom->GetNPhi()*geom->GetNZ();
d15a28e7 501
2b629790 502 if(digit->GetId() <= nEMC ) rv = kTRUE;
ed4205d8 503
504 return rv ;
505}
506
ed4205d8 507//____________________________________________________________________________
9a1398dd 508Bool_t AliPHOSClusterizerv1::IsInCpv(AliPHOSDigit * digit) const
ed4205d8 509{
fad3e5b9 510 // Tells if (true) or not (false) the digit is in a PHOS-CPV module
ed4205d8 511
512 Bool_t rv = kFALSE ;
7b7c1533 513 const AliPHOSGeometry * geom = AliPHOSGetter::GetInstance()->PHOSGeometry() ;
ed4205d8 514
2b629790 515 Int_t nEMC = geom->GetNModules()*geom->GetNPhi()*geom->GetNZ();
ed4205d8 516
2b629790 517 if(digit->GetId() > nEMC ) rv = kTRUE;
d15a28e7 518
519 return rv ;
520}
9a1398dd 521
522//____________________________________________________________________________
7b7c1533 523void AliPHOSClusterizerv1::WriteRecPoints(Int_t event)
a4e98857 524{
7b7c1533 525
526 // Creates new branches with given title
a4e98857 527 // fills and writes into TreeR.
fbf811ec 528
529
7b7c1533 530 AliPHOSGetter *gime = AliPHOSGetter::GetInstance() ;
fbf811ec 531 TObjArray * emcRecPoints = gime->EmcRecPoints() ;
532 TObjArray * cpvRecPoints = gime->CpvRecPoints() ;
533 TClonesArray * digits = gime->Digits() ;
534 TTree * treeR ;
535
536 if(fToSplit){
537 if(!fSplitFile)
538 return ;
539 fSplitFile->cd() ;
540 TString name("TreeR") ;
541 name += event ;
542 treeR = dynamic_cast<TTree*>(fSplitFile->Get(name));
543 }
544 else{
545 treeR = gAlice->TreeR();
546 }
547
548 if(!treeR){
c2cd5471 549 if(fSplitFile)
550 gAlice->MakeTree("R", fSplitFile);
551 else
552 gAlice->MakeTree("R", gROOT->GetFile(GetTitle()));
fbf811ec 553 treeR = gAlice->TreeR() ;
554 }
555
9a1398dd 556 Int_t index ;
01a599c9 557 //Evaluate position, dispersion and other RecPoint properties...
092b50ba 558 for(index = 0; index < emcRecPoints->GetEntries(); index++){
559 AliPHOSEmcRecPoint * emcrp = static_cast<AliPHOSEmcRecPoint *>(emcRecPoints->At(index)) ;
560 emcrp->Purify(fPurifyThreshold) ;
561 if(emcrp->GetMultiplicity())
562 emcrp->EvalAll(fW0,digits) ;
563 else
564 emcRecPoints->Remove(emcrp) ;
565 }
566
567 emcRecPoints->Compress() ;
7b7c1533 568 emcRecPoints->Sort() ;
7b7c1533 569 for(index = 0; index < emcRecPoints->GetEntries(); index++)
570 ((AliPHOSEmcRecPoint *)emcRecPoints->At(index))->SetIndexInList(index) ;
fbf811ec 571
7b7c1533 572 emcRecPoints->Expand(emcRecPoints->GetEntriesFast()) ;
fbf811ec 573
9a1398dd 574 //Now the same for CPV
7b7c1533 575 for(index = 0; index < cpvRecPoints->GetEntries(); index++)
576 ((AliPHOSRecPoint *)cpvRecPoints->At(index))->EvalAll(fW0CPV,digits) ;
fbf811ec 577
7b7c1533 578 cpvRecPoints->Sort() ;
fbf811ec 579
7b7c1533 580 for(index = 0; index < cpvRecPoints->GetEntries(); index++)
581 ((AliPHOSRecPoint *)cpvRecPoints->At(index))->SetIndexInList(index) ;
fbf811ec 582
7b7c1533 583 cpvRecPoints->Expand(cpvRecPoints->GetEntriesFast()) ;
9a1398dd 584
9a1398dd 585 Int_t bufferSize = 32000 ;
586 Int_t splitlevel = 0 ;
8d0f3f77 587
01a599c9 588 //First EMC
8d0f3f77 589 TBranch * emcBranch = treeR->Branch("PHOSEmcRP","TObjArray",&emcRecPoints,bufferSize,splitlevel);
fc12304f 590 emcBranch->SetTitle(BranchName());
9a1398dd 591
592 //Now CPV branch
8d0f3f77 593 TBranch * cpvBranch = treeR->Branch("PHOSCpvRP","TObjArray",&cpvRecPoints,bufferSize,splitlevel);
fc12304f 594 cpvBranch->SetTitle(BranchName());
9a1398dd 595
596 //And Finally clusterizer branch
8581019b 597 AliPHOSClusterizerv1 * cl = this ;
8d0f3f77 598 TBranch * clusterizerBranch = treeR->Branch("AliPHOSClusterizer","AliPHOSClusterizerv1",
9a1398dd 599 &cl,bufferSize,splitlevel);
fc12304f 600 clusterizerBranch->SetTitle(BranchName());
8d0f3f77 601
01a599c9 602 emcBranch ->Fill() ;
603 cpvBranch ->Fill() ;
761e34c0 604 clusterizerBranch->Fill() ;
eec3ac52 605
548f0134 606 treeR->AutoSave() ;
fbf811ec 607 if(gAlice->TreeR()!=treeR)
608 treeR->Delete();
9a1398dd 609}
610
611//____________________________________________________________________________
612void AliPHOSClusterizerv1::MakeClusters()
613{
614 // Steering method to construct the clusters stored in a list of Reconstructed Points
615 // A cluster is defined as a list of neighbour digits
d15a28e7 616
7b7c1533 617 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
618
fc12304f 619 TObjArray * emcRecPoints = gime->EmcRecPoints(BranchName()) ;
620 TObjArray * cpvRecPoints = gime->CpvRecPoints(BranchName()) ;
7d493c2c 621 emcRecPoints->Delete() ;
622 cpvRecPoints->Delete() ;
7b7c1533 623
fbf811ec 624 TClonesArray * digits = gime->Digits() ;
fc12304f 625 if ( !digits ) {
f1611b7c 626 Fatal("MakeClusters", "Digits with name %s not found !", BranchName().Data() ) ;
fc12304f 627 }
7b7c1533 628 TClonesArray * digitsC = (TClonesArray*)digits->Clone() ;
629
630
d15a28e7 631 // Clusterization starts
9a1398dd 632
7b7c1533 633 TIter nextdigit(digitsC) ;
d15a28e7 634 AliPHOSDigit * digit ;
92862013 635 Bool_t notremoved = kTRUE ;
6ad0bfa0 636
7b7c1533 637 while ( (digit = (AliPHOSDigit *)nextdigit()) ) { // scan over the list of digitsC
9a1398dd 638 AliPHOSRecPoint * clu = 0 ;
c161df70 639
d1de15f5 640 TArrayI clusterdigitslist(1500) ;
d15a28e7 641 Int_t index ;
bed9e3fb 642 // cout << "digit " << digit << " " << Calibrate(digit->GetAmp(),digit->GetId()) << endl ;
f2bc1b87 643
3758d9fc 644 if (( IsInEmc (digit) && Calibrate(digit->GetAmp(),digit->GetId()) > fEmcClusteringThreshold ) ||
645 ( IsInCpv (digit) && Calibrate(digit->GetAmp(),digit->GetId()) > fCpvClusteringThreshold ) ) {
d15a28e7 646 Int_t iDigitInCluster = 0 ;
7b7c1533 647
6ad0bfa0 648 if ( IsInEmc(digit) ) {
83974468 649 // start a new EMC RecPoint
7b7c1533 650 if(fNumberOfEmcClusters >= emcRecPoints->GetSize())
651 emcRecPoints->Expand(2*fNumberOfEmcClusters+1) ;
652
73a68ccb 653 emcRecPoints->AddAt(new AliPHOSEmcRecPoint(""), fNumberOfEmcClusters) ;
7b7c1533 654 clu = (AliPHOSEmcRecPoint *) emcRecPoints->At(fNumberOfEmcClusters) ;
7f5d510c 655 fNumberOfEmcClusters++ ;
3758d9fc 656 clu->AddDigit(*digit, Calibrate(digit->GetAmp(),digit->GetId())) ;
9a1398dd 657 clusterdigitslist[iDigitInCluster] = digit->GetIndexInList() ;
9f616d61 658 iDigitInCluster++ ;
7b7c1533 659 digitsC->Remove(digit) ;
ca77b032 660
d72dfbc3 661 } else {
83974468 662
9688c1dd 663 // start a new CPV cluster
7b7c1533 664 if(fNumberOfCpvClusters >= cpvRecPoints->GetSize())
665 cpvRecPoints->Expand(2*fNumberOfCpvClusters+1);
666
73a68ccb 667 cpvRecPoints->AddAt(new AliPHOSCpvRecPoint(""), fNumberOfCpvClusters) ;
fad3e5b9 668
9688c1dd 669 clu = (AliPHOSCpvRecPoint *) cpvRecPoints->At(fNumberOfCpvClusters) ;
7b7c1533 670 fNumberOfCpvClusters++ ;
3758d9fc 671 clu->AddDigit(*digit, Calibrate(digit->GetAmp(),digit->GetId()) ) ;
9a1398dd 672 clusterdigitslist[iDigitInCluster] = digit->GetIndexInList() ;
9f616d61 673 iDigitInCluster++ ;
7b7c1533 674 digitsC->Remove(digit) ;
d15a28e7 675 nextdigit.Reset() ;
676
7b7c1533 677 // Here we remove remaining EMC digits, which cannot make a cluster
fad3e5b9 678
92862013 679 if( notremoved ) {
9f616d61 680 while( ( digit = (AliPHOSDigit *)nextdigit() ) ) {
9f616d61 681 if( IsInEmc(digit) )
7b7c1533 682 digitsC->Remove(digit) ;
d15a28e7 683 else
684 break ;
d72dfbc3 685 }
686 notremoved = kFALSE ;
687 }
d15a28e7 688
689 } // else
690
691 nextdigit.Reset() ;
fad3e5b9 692
d15a28e7 693 AliPHOSDigit * digitN ;
694 index = 0 ;
9f616d61 695 while (index < iDigitInCluster){ // scan over digits already in cluster
7b7c1533 696 digit = (AliPHOSDigit*)digits->At(clusterdigitslist[index]) ;
9f616d61 697 index++ ;
d15a28e7 698 while ( (digitN = (AliPHOSDigit *)nextdigit()) ) { // scan over the reduced list of digits
d72dfbc3 699 Int_t ineb = AreNeighbours(digit, digitN); // call (digit,digitN) in THAT oder !!!!!
d15a28e7 700 switch (ineb ) {
9f616d61 701 case 0 : // not a neighbour
d72dfbc3 702 break ;
9f616d61 703 case 1 : // are neighbours
3758d9fc 704 clu->AddDigit(*digitN, Calibrate( digitN->GetAmp(), digitN->GetId() ) ) ;
9a1398dd 705 clusterdigitslist[iDigitInCluster] = digitN->GetIndexInList() ;
9f616d61 706 iDigitInCluster++ ;
7b7c1533 707 digitsC->Remove(digitN) ;
d15a28e7 708 break ;
9f616d61 709 case 2 : // too far from each other
d15a28e7 710 goto endofloop;
711 } // switch
712
713 } // while digitN
fad3e5b9 714
d15a28e7 715 endofloop: ;
716 nextdigit.Reset() ;
717
718 } // loop over cluster
ad8cfaf4 719
ad8cfaf4 720 } // energy theshold
ad8cfaf4 721
31aa6d6c 722
d15a28e7 723 } // while digit
724
7b7c1533 725 delete digitsC ;
9688c1dd 726
9a1398dd 727}
728
729//____________________________________________________________________________
a4e98857 730void AliPHOSClusterizerv1::MakeUnfolding()
731{
732 // Unfolds clusters using the shape of an ElectroMagnetic shower
9688c1dd 733 // Performs unfolding of all EMC/CPV clusters
9a1398dd 734
7b7c1533 735 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
736
fc12304f 737
7b7c1533 738 const AliPHOSGeometry * geom = gime->PHOSGeometry() ;
fc12304f 739 TObjArray * emcRecPoints = gime->EmcRecPoints(BranchName()) ;
740 TObjArray * cpvRecPoints = gime->CpvRecPoints(BranchName()) ;
fbf811ec 741 TClonesArray * digits = gime->Digits() ;
7b7c1533 742
a4e98857 743 // Unfold first EMC clusters
9a1398dd 744 if(fNumberOfEmcClusters > 0){
745
7b7c1533 746 Int_t nModulesToUnfold = geom->GetNModules() ;
9a1398dd 747
748 Int_t numberofNotUnfolded = fNumberOfEmcClusters ;
749 Int_t index ;
750 for(index = 0 ; index < numberofNotUnfolded ; index++){
751
7b7c1533 752 AliPHOSEmcRecPoint * emcRecPoint = (AliPHOSEmcRecPoint *) emcRecPoints->At(index) ;
9a1398dd 753 if(emcRecPoint->GetPHOSMod()> nModulesToUnfold)
754 break ;
755
756 Int_t nMultipl = emcRecPoint->GetMultiplicity() ;
a0636361 757 AliPHOSDigit ** maxAt = new AliPHOSDigit*[nMultipl] ;
9a1398dd 758 Float_t * maxAtEnergy = new Float_t[nMultipl] ;
7b7c1533 759 Int_t nMax = emcRecPoint->GetNumberOfLocalMax(maxAt, maxAtEnergy,fEmcLocMaxCut,digits) ;
9a1398dd 760
761 if( nMax > 1 ) { // if cluster is very flat (no pronounced maximum) then nMax = 0
762 UnfoldCluster(emcRecPoint, nMax, maxAt, maxAtEnergy) ;
bed9e3fb 763 if(emcRecPoint->GetNExMax()!=-1){ //Do not remove clusters which failed to unfold
764 emcRecPoints->Remove(emcRecPoint);
765 emcRecPoints->Compress() ;
766 index-- ;
767 fNumberOfEmcClusters -- ;
768 numberofNotUnfolded-- ;
769 }
9a1398dd 770 }
bed9e3fb 771 else
772 emcRecPoint->SetNExMax(1) ; //Only one local maximum
9a1398dd 773
774 delete[] maxAt ;
775 delete[] maxAtEnergy ;
776 }
777 }
a4e98857 778 // Unfolding of EMC clusters finished
9a1398dd 779
780
a4e98857 781 // Unfold now CPV clusters
9a1398dd 782 if(fNumberOfCpvClusters > 0){
783
9688c1dd 784 Int_t nModulesToUnfold = geom->GetNModules() ;
9a1398dd 785
786 Int_t numberofCpvNotUnfolded = fNumberOfCpvClusters ;
787 Int_t index ;
788 for(index = 0 ; index < numberofCpvNotUnfolded ; index++){
789
7b7c1533 790 AliPHOSRecPoint * recPoint = (AliPHOSRecPoint *) cpvRecPoints->At(index) ;
9a1398dd 791
792 if(recPoint->GetPHOSMod()> nModulesToUnfold)
793 break ;
794
795 AliPHOSEmcRecPoint * emcRecPoint = (AliPHOSEmcRecPoint*) recPoint ;
796
797 Int_t nMultipl = emcRecPoint->GetMultiplicity() ;
a0636361 798 AliPHOSDigit ** maxAt = new AliPHOSDigit*[nMultipl] ;
9a1398dd 799 Float_t * maxAtEnergy = new Float_t[nMultipl] ;
7b7c1533 800 Int_t nMax = emcRecPoint->GetNumberOfLocalMax(maxAt, maxAtEnergy,fCpvLocMaxCut,digits) ;
9a1398dd 801
802 if( nMax > 1 ) { // if cluster is very flat (no pronounced maximum) then nMax = 0
803 UnfoldCluster(emcRecPoint, nMax, maxAt, maxAtEnergy) ;
7b7c1533 804 cpvRecPoints->Remove(emcRecPoint);
805 cpvRecPoints->Compress() ;
9a1398dd 806 index-- ;
807 numberofCpvNotUnfolded-- ;
808 fNumberOfCpvClusters-- ;
809 }
810
811 delete[] maxAt ;
812 delete[] maxAtEnergy ;
813 }
814 }
815 //Unfolding of Cpv clusters finished
816
817}
818
9a1398dd 819//____________________________________________________________________________
820Double_t AliPHOSClusterizerv1::ShowerShape(Double_t r)
821{
822 // Shape of the shower (see PHOS TDR)
a4e98857 823 // If you change this function, change also the gradient evaluation in ChiSquare()
9a1398dd 824
825 Double_t r4 = r*r*r*r ;
826 Double_t r295 = TMath::Power(r, 2.95) ;
827 Double_t shape = TMath::Exp( -r4 * (1. / (2.32 + 0.26 * r4) + 0.0316 / (1 + 0.0652 * r295) ) ) ;
828 return shape ;
829}
830
831//____________________________________________________________________________
832void AliPHOSClusterizerv1::UnfoldCluster(AliPHOSEmcRecPoint * iniEmc,
833 Int_t nMax,
a0636361 834 AliPHOSDigit ** maxAt,
9a1398dd 835 Float_t * maxAtEnergy)
836{
837 // Performs the unfolding of a cluster with nMax overlapping showers
838
7b7c1533 839 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
fc12304f 840
7b7c1533 841 const AliPHOSGeometry * geom = gime->PHOSGeometry() ;
fbf811ec 842 const TClonesArray * digits = gime->Digits() ;
843 TObjArray * emcRecPoints = gime->EmcRecPoints() ;
844 TObjArray * cpvRecPoints = gime->CpvRecPoints() ;
7b7c1533 845
9a1398dd 846 Int_t nPar = 3 * nMax ;
847 Float_t * fitparameters = new Float_t[nPar] ;
848
849 Bool_t rv = FindFit(iniEmc, maxAt, maxAtEnergy, nPar, fitparameters) ;
850 if( !rv ) {
bed9e3fb 851 // Fit failed, return
852 iniEmc->SetNExMax(-1) ;
9a1398dd 853 delete[] fitparameters ;
854 return ;
855 }
856
857 // create ufolded rec points and fill them with new energy lists
858 // First calculate energy deposited in each sell in accordance with fit (without fluctuations): efit[]
859 // and later correct this number in acordance with actual energy deposition
860
861 Int_t nDigits = iniEmc->GetMultiplicity() ;
862 Float_t * efit = new Float_t[nDigits] ;
7b7c1533 863 Float_t xDigit=0.,zDigit=0.,distance=0. ;
864 Float_t xpar=0.,zpar=0.,epar=0. ;
9a1398dd 865 Int_t relid[4] ;
7b7c1533 866 AliPHOSDigit * digit = 0 ;
9a1398dd 867 Int_t * emcDigits = iniEmc->GetDigitsList() ;
868
869 Int_t iparam ;
870 Int_t iDigit ;
871 for(iDigit = 0 ; iDigit < nDigits ; iDigit ++){
7b7c1533 872 digit = (AliPHOSDigit*) digits->At(emcDigits[iDigit] ) ;
873 geom->AbsToRelNumbering(digit->GetId(), relid) ;
874 geom->RelPosInModule(relid, xDigit, zDigit) ;
9a1398dd 875 efit[iDigit] = 0;
876
877 iparam = 0 ;
878 while(iparam < nPar ){
879 xpar = fitparameters[iparam] ;
880 zpar = fitparameters[iparam+1] ;
881 epar = fitparameters[iparam+2] ;
882 iparam += 3 ;
883 distance = (xDigit - xpar) * (xDigit - xpar) + (zDigit - zpar) * (zDigit - zpar) ;
884 distance = TMath::Sqrt(distance) ;
885 efit[iDigit] += epar * ShowerShape(distance) ;
886 }
887 }
888
889
890 // Now create new RecPoints and fill energy lists with efit corrected to fluctuations
891 // so that energy deposited in each cell is distributed betwin new clusters proportionally
892 // to its contribution to efit
893
894 Float_t * emcEnergies = iniEmc->GetEnergiesList() ;
895 Float_t ratio ;
896
897 iparam = 0 ;
898 while(iparam < nPar ){
899 xpar = fitparameters[iparam] ;
900 zpar = fitparameters[iparam+1] ;
901 epar = fitparameters[iparam+2] ;
902 iparam += 3 ;
903
7b7c1533 904 AliPHOSEmcRecPoint * emcRP = 0 ;
9a1398dd 905
906 if(iniEmc->IsEmc()){ //create new entries in fEmcRecPoints...
907
7b7c1533 908 if(fNumberOfEmcClusters >= emcRecPoints->GetSize())
909 emcRecPoints->Expand(2*fNumberOfEmcClusters) ;
9a1398dd 910
73a68ccb 911 (*emcRecPoints)[fNumberOfEmcClusters] = new AliPHOSEmcRecPoint("") ;
7b7c1533 912 emcRP = (AliPHOSEmcRecPoint *) emcRecPoints->At(fNumberOfEmcClusters);
9a1398dd 913 fNumberOfEmcClusters++ ;
bed9e3fb 914 emcRP->SetNExMax((Int_t)nPar/3) ;
9a1398dd 915 }
916 else{//create new entries in fCpvRecPoints
7b7c1533 917 if(fNumberOfCpvClusters >= cpvRecPoints->GetSize())
918 cpvRecPoints->Expand(2*fNumberOfCpvClusters) ;
9a1398dd 919
73a68ccb 920 (*cpvRecPoints)[fNumberOfCpvClusters] = new AliPHOSCpvRecPoint("") ;
7b7c1533 921 emcRP = (AliPHOSEmcRecPoint *) cpvRecPoints->At(fNumberOfCpvClusters);
9a1398dd 922 fNumberOfCpvClusters++ ;
923 }
924
925 Float_t eDigit ;
926 for(iDigit = 0 ; iDigit < nDigits ; iDigit ++){
7b7c1533 927 digit = (AliPHOSDigit*) digits->At( emcDigits[iDigit] ) ;
928 geom->AbsToRelNumbering(digit->GetId(), relid) ;
929 geom->RelPosInModule(relid, xDigit, zDigit) ;
9a1398dd 930 distance = (xDigit - xpar) * (xDigit - xpar) + (zDigit - zpar) * (zDigit - zpar) ;
931 distance = TMath::Sqrt(distance) ;
932 ratio = epar * ShowerShape(distance) / efit[iDigit] ;
933 eDigit = emcEnergies[iDigit] * ratio ;
934 emcRP->AddDigit( *digit, eDigit ) ;
935 }
936 }
937
938 delete[] fitparameters ;
939 delete[] efit ;
940
941}
942
943//_____________________________________________________________________________
944void AliPHOSClusterizerv1::UnfoldingChiSquare(Int_t & nPar, Double_t * Grad, Double_t & fret, Double_t * x, Int_t iflag)
945{
a4e98857 946 // Calculates the Chi square for the cluster unfolding minimization
9a1398dd 947 // Number of parameters, Gradient, Chi squared, parameters, what to do
948
9a1398dd 949 TList * toMinuit = (TList*) gMinuit->GetObjectFit() ;
950
951 AliPHOSEmcRecPoint * emcRP = (AliPHOSEmcRecPoint*) toMinuit->At(0) ;
952 TClonesArray * digits = (TClonesArray*)toMinuit->At(1) ;
953
954
955
956 // AliPHOSEmcRecPoint * emcRP = (AliPHOSEmcRecPoint *) gMinuit->GetObjectFit() ; // EmcRecPoint to fit
957
958 Int_t * emcDigits = emcRP->GetDigitsList() ;
959
7b7c1533 960 Int_t nOdigits = emcRP->GetDigitsMultiplicity() ;
9a1398dd 961
962 Float_t * emcEnergies = emcRP->GetEnergiesList() ;
963
01a599c9 964 const AliPHOSGeometry * geom = AliPHOSGetter::GetInstance()->PHOSGeometry() ;
9a1398dd 965 fret = 0. ;
966 Int_t iparam ;
967
968 if(iflag == 2)
969 for(iparam = 0 ; iparam < nPar ; iparam++)
970 Grad[iparam] = 0 ; // Will evaluate gradient
971
972 Double_t efit ;
973
974 AliPHOSDigit * digit ;
975 Int_t iDigit ;
976
7b7c1533 977 for( iDigit = 0 ; iDigit < nOdigits ; iDigit++) {
9a1398dd 978
979 digit = (AliPHOSDigit*) digits->At( emcDigits[iDigit] ) ;
980
981 Int_t relid[4] ;
982 Float_t xDigit ;
983 Float_t zDigit ;
984
985 geom->AbsToRelNumbering(digit->GetId(), relid) ;
986
987 geom->RelPosInModule(relid, xDigit, zDigit) ;
988
989 if(iflag == 2){ // calculate gradient
990 Int_t iParam = 0 ;
991 efit = 0 ;
992 while(iParam < nPar ){
993 Double_t distance = (xDigit - x[iParam]) * (xDigit - x[iParam]) ;
994 iParam++ ;
995 distance += (zDigit - x[iParam]) * (zDigit - x[iParam]) ;
996 distance = TMath::Sqrt( distance ) ;
997 iParam++ ;
998 efit += x[iParam] * ShowerShape(distance) ;
999 iParam++ ;
1000 }
bed9e3fb 1001 Double_t sum=0 ;
1002 if(emcEnergies[iDigit] > 0)
1003 sum = 2. * (efit - emcEnergies[iDigit]) / emcEnergies[iDigit] ;
1004 // Here we assume, that sigma = sqrt(E)
9a1398dd 1005 iParam = 0 ;
1006 while(iParam < nPar ){
1007 Double_t xpar = x[iParam] ;
1008 Double_t zpar = x[iParam+1] ;
1009 Double_t epar = x[iParam+2] ;
1010 Double_t dr = TMath::Sqrt( (xDigit - xpar) * (xDigit - xpar) + (zDigit - zpar) * (zDigit - zpar) );
1011 Double_t shape = sum * ShowerShape(dr) ;
1012 Double_t r4 = dr*dr*dr*dr ;
1013 Double_t r295 = TMath::Power(dr,2.95) ;
1014 Double_t deriv =-4. * dr*dr * ( 2.32 / ( (2.32 + 0.26 * r4) * (2.32 + 0.26 * r4) ) +
1015 0.0316 * (1. + 0.0171 * r295) / ( ( 1. + 0.0652 * r295) * (1. + 0.0652 * r295) ) ) ;
1016
1017 Grad[iParam] += epar * shape * deriv * (xpar - xDigit) ; // Derivative over x
1018 iParam++ ;
1019 Grad[iParam] += epar * shape * deriv * (zpar - zDigit) ; // Derivative over z
1020 iParam++ ;
1021 Grad[iParam] += shape ; // Derivative over energy
1022 iParam++ ;
1023 }
1024 }
1025 efit = 0;
1026 iparam = 0 ;
1027
1028 while(iparam < nPar ){
1029 Double_t xpar = x[iparam] ;
1030 Double_t zpar = x[iparam+1] ;
1031 Double_t epar = x[iparam+2] ;
1032 iparam += 3 ;
1033 Double_t distance = (xDigit - xpar) * (xDigit - xpar) + (zDigit - zpar) * (zDigit - zpar) ;
1034 distance = TMath::Sqrt(distance) ;
1035 efit += epar * ShowerShape(distance) ;
1036 }
1037
bed9e3fb 1038 if(emcEnergies[iDigit] > 0) //for the case if rounding error
1039 fret += (efit-emcEnergies[iDigit])*(efit-emcEnergies[iDigit])/
1040 emcEnergies[iDigit] ;
9a1398dd 1041 // Here we assume, that sigma = sqrt(E)
1042 }
83974468 1043
d15a28e7 1044}
1045
1046//____________________________________________________________________________
9a1398dd 1047void AliPHOSClusterizerv1::Print(Option_t * option)const
d15a28e7 1048{
d1de15f5 1049 // Print clusterizer parameters
1050
21cd0c07 1051 TString message ;
1052 TString taskName(GetName()) ;
1053 taskName.ReplaceAll(Version(), "") ;
1054
1055 if( strcmp(GetName(), "") !=0 ) {
9a1398dd 1056 // Print parameters
21cd0c07 1057 message = "\n--------------- %s %s -----------\n" ;
1058 message += "Clusterizing digits from the file: %s\n" ;
1059 message += " Branch: %s\n" ;
1060 message += " EMC Clustering threshold = %f\n" ;
1061 message += " EMC Local Maximum cut = %f\n" ;
1062 message += " EMC Logarothmic weight = %f\n" ;
1063 message += " CPV Clustering threshold = %f\n" ;
1064 message += " CPV Local Maximum cut = %f\n" ;
1065 message += " CPV Logarothmic weight = %f\n" ;
9a1398dd 1066 if(fToUnfold)
21cd0c07 1067 message += " Unfolding on\n" ;
9a1398dd 1068 else
21cd0c07 1069 message += " Unfolding off\n" ;
9a1398dd 1070
21cd0c07 1071 message += "------------------------------------------------------------------" ;
9a1398dd 1072 }
21cd0c07 1073 else
1074 message = " AliPHOSClusterizerv1 not initialized " ;
1075
1076 Info("Print", message.Data(),
1077 taskName.Data(),
1078 GetTitle(),
1079 taskName.Data(),
1080 GetName(),
1081 fEmcClusteringThreshold,
1082 fEmcLocMaxCut,
1083 fW0,
1084 fCpvClusteringThreshold,
1085 fCpvLocMaxCut,
1086 fW0CPV ) ;
9a1398dd 1087}
21cd0c07 1088
1089
9a1398dd 1090//____________________________________________________________________________
a4e98857 1091void AliPHOSClusterizerv1::PrintRecPoints(Option_t * option)
1092{
1093 // Prints list of RecPoints produced at the current pass of AliPHOSClusterizer
9a1398dd 1094
fc12304f 1095 TObjArray * emcRecPoints = AliPHOSGetter::GetInstance()->EmcRecPoints(BranchName()) ;
1096 TObjArray * cpvRecPoints = AliPHOSGetter::GetInstance()->CpvRecPoints(BranchName()) ;
7b7c1533 1097
bed9e3fb 1098 if(strstr(option,"deb")){
1099 printf("event %d, found %d EmcRecPoints and %d CPV RecPoints \n",
1100 gAlice->GetEvNumber(),
1101 emcRecPoints->GetEntriesFast(),
1102 cpvRecPoints->GetEntriesFast()) ;
1103 }
1104
11f9c5ff 1105
9a1398dd 1106 if(strstr(option,"all")) {
bed9e3fb 1107 printf("\nEMC clusters\n" );
1108 printf("Index Ene(MeV) Multi Module X Y Z Lambda 1 Lambda 2 # of prim Primaries list\n" );
9a1398dd 1109 Int_t index ;
7b7c1533 1110 for (index = 0 ; index < emcRecPoints->GetEntries() ; index++) {
1111 AliPHOSEmcRecPoint * rp = (AliPHOSEmcRecPoint * )emcRecPoints->At(index) ;
9a1398dd 1112 TVector3 locpos;
1113 rp->GetLocalPosition(locpos);
9a1398dd 1114 Float_t lambda[2];
1115 rp->GetElipsAxis(lambda);
9a1398dd 1116 Int_t * primaries;
1117 Int_t nprimaries;
1118 primaries = rp->GetPrimaries(nprimaries);
bed9e3fb 1119 printf("\n%6d %8.2f %3d %2d %4.1f %4.1f %4.1f %4f %4f %2d : ",
11f9c5ff 1120 rp->GetIndexInList(), rp->GetEnergy(), rp->GetMultiplicity(), rp->GetPHOSMod(),
1121 locpos.X(), locpos.Y(), locpos.Z(), lambda[0], lambda[1], nprimaries) ;
3bf72d32 1122
21cd0c07 1123 for (Int_t iprimary=0; iprimary<nprimaries; iprimary++) {
bed9e3fb 1124 printf("%d ", primaries[iprimary] ) ;
21cd0c07 1125 }
bed9e3fb 1126 }
1127 //Now plot CPV recPoints
1128 printf("\n CPV RecPoints \n") ;
1129 printf("Index Ene(MeV) Module X Y Z # of prim Primaries list\n") ;
1130 for (index = 0 ; index < cpvRecPoints->GetEntries() ; index++) {
1131 AliPHOSRecPoint * rp = (AliPHOSRecPoint * )cpvRecPoints->At(index) ;
11f9c5ff 1132
1133 TVector3 locpos;
1134 rp->GetLocalPosition(locpos);
1135
1136 Int_t * primaries;
1137 Int_t nprimaries ;
1138 primaries = rp->GetPrimaries(nprimaries);
bed9e3fb 1139 printf("\n%6d %8.2f %2d %4.1f %4.1f %4.1f %2d : ",
11f9c5ff 1140 rp->GetIndexInList(), rp->GetEnergy(), rp->GetPHOSMod(),
1141 locpos.X(), locpos.Y(), locpos.Z(), nprimaries) ;
11f9c5ff 1142 primaries = rp->GetPrimaries(nprimaries);
1143 for (Int_t iprimary=0; iprimary<nprimaries; iprimary++) {
bed9e3fb 1144 printf("%d ", primaries[iprimary] ) ;
11f9c5ff 1145 }
21cd0c07 1146 }
9a1398dd 1147 }
d15a28e7 1148}
9a1398dd 1149