Make separate, specialized geometries for RPhi and RhoZ views.
[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
702ab87e 18/* History of cvs commits:
19 *
a28333c5 20 * $Log: AliPHOSClusterizerv1.cxx,v $
21 * Revision 1.118 2007/12/11 21:23:26 kharlov
22 * Added possibility to swith off unfolding
23 *
a42611a9 24 * Revision 1.117 2007/10/18 08:42:05 kharlov
25 * Bad channels cleaned before clusterization
26 *
454c62a4 27 * Revision 1.116 2007/10/01 20:24:08 kharlov
28 * Memory leaks fixed
29 *
e68222ce 30 * Revision 1.115 2007/09/26 14:22:17 cvetan
31 * Important changes to the reconstructor classes. Complete elimination of the run-loaders, which are now steered only from AliReconstruction. Removal of the corresponding Reconstruct() and FillESD() methods.
32 *
d76c31f4 33 * Revision 1.114 2007/09/06 16:06:44 kharlov
34 * Absence of sorting results in loose of all unfolded clusters
35 *
6d0a5c2e 36 * Revision 1.113 2007/08/28 12:55:07 policheh
37 * Loaders removed from the reconstruction code (C.Cheshkov)
38 *
9a2cdbdf 39 * Revision 1.112 2007/08/22 09:20:50 hristov
40 * Updated QA classes (Yves)
41 *
a5fa6165 42 * Revision 1.111 2007/08/08 12:11:28 kharlov
43 * Protection against uninitialized fQADM
44 *
7ae07b77 45 * Revision 1.110 2007/08/07 14:16:00 kharlov
46 * Quality assurance added (Yves Schutz)
47 *
ddd1a39c 48 * Revision 1.109 2007/07/24 17:20:35 policheh
49 * Usage of RecoParam objects instead of hardcoded parameters in reconstruction.
50 * (See $ALICE_ROOT/PHOS/macros/BeamTest2006/RawReconstruction.C).
51 *
3799bcb5 52 * Revision 1.108 2007/06/18 07:00:51 kharlov
53 * Bug fix for attempt to use AliPHOSEmcRecPoint after its deletion
54 *
cd79ec76 55 * Revision 1.107 2007/05/25 14:12:26 policheh
56 * Local to tracking CS transformation added for CPV rec. points
57 *
76e42795 58 * Revision 1.106 2007/05/24 13:01:22 policheh
59 * Local to tracking CS transformation invoked for each EMC rec.point
60 *
788ab371 61 * Revision 1.105 2007/05/02 13:41:22 kharlov
62 * Mode protection against absence of calib.data from AliPHOSCalibData to AliPHOSClusterizerv1::GetCalibrationParameters()
63 *
f36dfa9a 64 * Revision 1.104 2007/04/27 16:55:53 kharlov
65 * Calibration stops if PHOS CDB objects do not exist
66 *
76d78b7a 67 * Revision 1.103 2007/04/11 11:55:45 policheh
68 * SetDistancesToBadChannels() added.
69 *
af0b0570 70 * Revision 1.102 2007/03/28 19:18:15 kharlov
71 * RecPoints recalculation in TSM removed
72 *
8c1fb709 73 * Revision 1.101 2007/03/06 06:51:27 kharlov
74 * Calculation of cluster properties dep. on vertex posponed to TrackSegmentMaker
75 *
a978bcea 76 * Revision 1.100 2007/01/10 11:07:26 kharlov
77 * Raw digits writing to file (B.Polichtchouk)
78 *
cbddd97f 79 * Revision 1.99 2006/11/07 16:49:51 kharlov
80 * Corrections for next event switch in case of raw data (B.Polichtchouk)
81 *
e1c29d81 82 * Revision 1.98 2006/10/27 17:14:27 kharlov
83 * Introduce AliDebug and AliLog (B.Polichtchouk)
84 *
e1afea68 85 * Revision 1.97 2006/08/29 11:41:19 kharlov
86 * Missing implementation of ctors and = operator are added
87 *
f1133801 88 * Revision 1.96 2006/08/25 16:56:30 kharlov
89 * Compliance with Effective C++
90 *
0378398c 91 * Revision 1.95 2006/08/11 12:36:26 cvetan
92 * Update of the PHOS code needed in order to read and reconstruct the beam test raw data (i.e. without an existing galice.root)
93 *
52c5f046 94 * Revision 1.94 2006/08/07 12:27:49 hristov
95 * Removing obsolete code which affected the event numbering scheme
96 *
4d4750bd 97 * Revision 1.93 2006/08/01 12:20:17 cvetan
98 * 1. Adding a possibility to read and reconstruct an old rcu formatted raw data. This is controlled by an option of AliReconstruction and AliPHOSReconstructor. 2. In case of raw data processing (without galice.root) create the default AliPHOSGeometry object. Most likely this should be moved to the CDB
99 *
f5eaa851 100 * Revision 1.92 2006/04/29 20:26:46 hristov
101 * Separate EMC and CPV calibration (Yu.Kharlov)
102 *
e95226ae 103 * Revision 1.91 2006/04/22 10:30:17 hristov
104 * Add fEnergy to AliPHOSDigit and operate with EMC amplitude in energy units (Yu.Kharlov)
105 *
27a73a5d 106 * Revision 1.90 2006/04/11 15:22:59 hristov
107 * run number in query set to -1: forces AliCDBManager to use its run number (A.Colla)
108 *
28871337 109 * Revision 1.89 2006/03/13 14:05:42 kharlov
110 * Calibration objects for EMC and CPV
111 *
fc6706cb 112 * Revision 1.88 2006/01/11 08:54:52 hristov
113 * Additional protection in case no calibration entry was found
114 *
e521c5a0 115 * Revision 1.87 2005/11/22 08:46:43 kharlov
116 * Updated to new CDB (Boris Polichtchouk)
117 *
ef629623 118 * Revision 1.86 2005/11/14 21:52:43 hristov
119 * Coding conventions
120 *
fdf65bb5 121 * Revision 1.85 2005/09/27 16:08:08 hristov
122 * New version of CDB storage framework (A.Colla)
123 *
9e1ceb13 124 * Revision 1.84 2005/09/21 10:02:47 kharlov
125 * Reading calibration from CDB (Boris Polichtchouk)
126 *
8d6d4fb5 127 * Revision 1.82 2005/09/02 15:43:13 kharlov
128 * Add comments in GetCalibrationParameters and Calibrate
129 *
5c149aeb 130 * Revision 1.81 2005/09/02 14:32:07 kharlov
131 * Calibration of raw data
132 *
44ae287e 133 * Revision 1.80 2005/08/24 15:31:36 kharlov
134 * Setting raw digits flag
135 *
9735c615 136 * Revision 1.79 2005/07/25 15:53:53 kharlov
137 * Read raw data
138 *
3cf4f75f 139 * Revision 1.78 2005/05/28 14:19:04 schutz
140 * Compilation warnings fixed by T.P.
141 *
702ab87e 142 */
143
9a1398dd 144//*-- Author: Yves Schutz (SUBATECH) & Dmitri Peressounko (SUBATECH & Kurchatov Institute)
d15a28e7 145//////////////////////////////////////////////////////////////////////////////
9a1398dd 146// Clusterization class. Performs clusterization (collects neighbouring active cells) and
a4e98857 147// unfolds the clusters having several local maxima.
148// Results are stored in TreeR#, branches PHOSEmcRP (EMC recPoints),
9a1398dd 149// PHOSCpvRP (CPV RecPoints) and AliPHOSClusterizer (Clusterizer with all
f035f6ce 150// parameters including input digits branch title, thresholds etc.)
a4e98857 151// This TTask is normally called from Reconstructioner, but can as well be used in
152// standalone mode.
153// Use Case:
9a2cdbdf 154// root [0] AliPHOSClusterizerv1 * cl = new AliPHOSClusterizerv1(<pointer_to_phos_geometry_onject>)
155// root [1] cl->Digits2Clusters(digitsTree,clusterTree)
156// //finds RecPoints in the current event
a4e98857 157// root [2] cl->SetDigitsBranch("digits2")
f035f6ce 158// //sets another title for Digitis (input) branch
a4e98857 159// root [3] cl->SetRecPointsBranch("recp2")
f035f6ce 160// //sets another title four output branches
a4e98857 161// root [4] cl->SetEmcLocalMaxCut(0.03)
9a1398dd 162// //set clusterization parameters
ed4205d8 163
d15a28e7 164// --- ROOT system ---
165
166#include "TMath.h"
9a1398dd 167#include "TMinuit.h"
168#include "TTree.h"
9a1398dd 169#include "TBenchmark.h"
9a2cdbdf 170#include "TClonesArray.h"
d15a28e7 171
172// --- Standard library ---
173
d15a28e7 174// --- AliRoot header files ---
351dd634 175#include "AliLog.h"
9a2cdbdf 176#include "AliConfig.h"
e957fea8 177#include "AliPHOSGeometry.h"
d15a28e7 178#include "AliPHOSClusterizerv1.h"
88cb7938 179#include "AliPHOSEmcRecPoint.h"
9a1398dd 180#include "AliPHOSCpvRecPoint.h"
d15a28e7 181#include "AliPHOSDigit.h"
9a1398dd 182#include "AliPHOSDigitizer.h"
ba898748 183#include "AliPHOSCalibrationDB.h"
9e1ceb13 184#include "AliCDBManager.h"
eaa5012b 185#include "AliCDBStorage.h"
fdf65bb5 186#include "AliCDBEntry.h"
3799bcb5 187#include "AliPHOSRecoParam.h"
9a2cdbdf 188#include "AliPHOSReconstructor.h"
a28333c5 189#include "AliPHOSCalibData.h"
d15a28e7 190
191ClassImp(AliPHOSClusterizerv1)
f035f6ce 192
d15a28e7 193//____________________________________________________________________________
0378398c 194AliPHOSClusterizerv1::AliPHOSClusterizerv1() :
195 AliPHOSClusterizer(),
196 fDefaultInit(0), fEmcCrystals(0), fToUnfold(0),
d07a44a8 197 fWrite(0),
198 fNumberOfEmcClusters(0), fNumberOfCpvClusters(0),
a28333c5 199 fEmcClusteringThreshold(0), fCpvClusteringThreshold(0),
0378398c 200 fEmcLocMaxCut(0), fW0(0), fCpvLocMaxCut(0),
d55c9739 201 fW0CPV(0), fEmcTimeGate(0), fEcoreRadius(0)
d15a28e7 202{
f035f6ce 203 // default ctor (to be used mainly by Streamer)
f035f6ce 204
92f521a9 205 fDefaultInit = kTRUE ;
9a1398dd 206}
7b7c1533 207
9a1398dd 208//____________________________________________________________________________
9a2cdbdf 209AliPHOSClusterizerv1::AliPHOSClusterizerv1(AliPHOSGeometry *geom) :
210 AliPHOSClusterizer(geom),
0378398c 211 fDefaultInit(0), fEmcCrystals(0), fToUnfold(0),
d07a44a8 212 fWrite(0),
213 fNumberOfEmcClusters(0), fNumberOfCpvClusters(0),
a28333c5 214 fEmcClusteringThreshold(0), fCpvClusteringThreshold(0),
0378398c 215 fEmcLocMaxCut(0), fW0(0), fCpvLocMaxCut(0),
d55c9739 216 fW0CPV(0), fEmcTimeGate(0), fEcoreRadius(0)
9a1398dd 217{
a4e98857 218 // ctor with the indication of the file where header Tree and digits Tree are stored
9a1398dd 219
2bd5457f 220 Init() ;
92f521a9 221 fDefaultInit = kFALSE ;
9a1398dd 222}
fc12304f 223
9688c1dd 224//____________________________________________________________________________
225 AliPHOSClusterizerv1::~AliPHOSClusterizerv1()
226{
0bc3b8ed 227 // dtor
228
9688c1dd 229}
3758d9fc 230//____________________________________________________________________________
9a2cdbdf 231void AliPHOSClusterizerv1::Digits2Clusters(Option_t *option)
a4e98857 232{
9a2cdbdf 233 // Steering method to perform clusterization for one event
234 // The input is the tree with digits.
235 // The output is the tree with clusters.
9a1398dd 236
237 if(strstr(option,"tim"))
7d493c2c 238 gBenchmark->Start("PHOSClusterizer");
9a1398dd 239
eabde521 240 if(strstr(option,"print")) {
88cb7938 241 Print() ;
eabde521 242 return ;
243 }
bed9e3fb 244
9a2cdbdf 245 MakeClusters() ;
9a1398dd 246
9a2cdbdf 247 AliDebug(2,Form(" ---- Printing clusters (%d)\n",
248 fEMCRecPoints->GetEntries()));
249 if(AliLog::GetGlobalDebugLevel()>1)
250 fEMCRecPoints->Print();
88cb7938 251
9a2cdbdf 252 if(fToUnfold)
253 MakeUnfolding();
ddd1a39c 254
9a2cdbdf 255 WriteRecPoints();
7b7c1533 256
9a2cdbdf 257 if(strstr(option,"deb"))
258 PrintRecPoints(option) ;
94de8339 259
9a1398dd 260 if(strstr(option,"tim")){
261 gBenchmark->Stop("PHOSClusterizer");
9a2cdbdf 262 AliInfo(Form("took %f seconds for Clusterizing\n",
263 gBenchmark->GetCpuTime("PHOSClusterizer")));
8d8258f6 264 }
6483babc 265 fEMCRecPoints->Delete();
266 fCPVRecPoints->Delete();
9a1398dd 267}
268
269//____________________________________________________________________________
a0636361 270Bool_t AliPHOSClusterizerv1::FindFit(AliPHOSEmcRecPoint * emcRP, AliPHOSDigit ** maxAt, Float_t * maxAtEnergy,
d1de15f5 271 Int_t nPar, Float_t * fitparameters) const
9a1398dd 272{
273 // Calls TMinuit to fit the energy distribution of a cluster with several maxima
a4e98857 274 // The initial values for fitting procedure are set equal to the positions of local maxima.
f035f6ce 275 // Cluster will be fitted as a superposition of nPar/3 electromagnetic showers
9a1398dd 276
88cb7938 277
9a1398dd 278 gMinuit->mncler(); // Reset Minuit's list of paramters
279 gMinuit->SetPrintLevel(-1) ; // No Printout
280 gMinuit->SetFCN(AliPHOSClusterizerv1::UnfoldingChiSquare) ;
281 // To set the address of the minimization function
282
283 TList * toMinuit = new TList();
284 toMinuit->AddAt(emcRP,0) ;
9a2cdbdf 285 toMinuit->AddAt(fDigitsArr,1) ;
286 toMinuit->AddAt(fGeom,2) ;
9a1398dd 287
288 gMinuit->SetObjectFit(toMinuit) ; // To tranfer pointer to UnfoldingChiSquare
289
290 // filling initial values for fit parameters
291 AliPHOSDigit * digit ;
292
293 Int_t ierflg = 0;
294 Int_t index = 0 ;
295 Int_t nDigits = (Int_t) nPar / 3 ;
296
297 Int_t iDigit ;
298
9a1398dd 299 for(iDigit = 0; iDigit < nDigits; iDigit++){
a0636361 300 digit = maxAt[iDigit];
9a1398dd 301
302 Int_t relid[4] ;
7b7c1533 303 Float_t x = 0.;
304 Float_t z = 0.;
9a2cdbdf 305 fGeom->AbsToRelNumbering(digit->GetId(), relid) ;
306 fGeom->RelPosInModule(relid, x, z) ;
9a1398dd 307
308 Float_t energy = maxAtEnergy[iDigit] ;
309
310 gMinuit->mnparm(index, "x", x, 0.1, 0, 0, ierflg) ;
311 index++ ;
312 if(ierflg != 0){
21cd0c07 313 Warning("FindFit", "PHOS Unfolding unable to set initial value for fit procedure : x = %f\n", x ) ;
9a1398dd 314 return kFALSE;
315 }
316 gMinuit->mnparm(index, "z", z, 0.1, 0, 0, ierflg) ;
317 index++ ;
318 if(ierflg != 0){
21cd0c07 319 Warning("FindFit", "PHOS Unfolding unable to set initial value for fit procedure : z =%f\n", z ) ;
9a1398dd 320 return kFALSE;
321 }
322 gMinuit->mnparm(index, "Energy", energy , 0.05*energy, 0., 4.*energy, ierflg) ;
323 index++ ;
324 if(ierflg != 0){
21cd0c07 325 Warning("FindFit", "PHOS Unfolding unable to set initial value for fit procedure : energy = %f\n", energy ) ;
9a1398dd 326 return kFALSE;
327 }
328 }
329
330 Double_t p0 = 0.1 ; // "Tolerance" Evaluation stops when EDM = 0.0001*p0 ; The number of function call slightly
331 // depends on it.
332 Double_t p1 = 1.0 ;
333 Double_t p2 = 0.0 ;
334
335 gMinuit->mnexcm("SET STR", &p2, 0, ierflg) ; // force TMinuit to reduce function calls
336 gMinuit->mnexcm("SET GRA", &p1, 1, ierflg) ; // force TMinuit to use my gradient
337 gMinuit->SetMaxIterations(5);
338 gMinuit->mnexcm("SET NOW", &p2 , 0, ierflg) ; // No Warnings
339
340 gMinuit->mnexcm("MIGRAD", &p0, 0, ierflg) ; // minimize
341
342 if(ierflg == 4){ // Minimum not found
21cd0c07 343 Warning("FindFit", "PHOS Unfolding fit not converged, cluster abandoned\n" );
9a1398dd 344 return kFALSE ;
345 }
346 for(index = 0; index < nPar; index++){
347 Double_t err ;
348 Double_t val ;
349 gMinuit->GetParameter(index, val, err) ; // Returns value and error of parameter index
350 fitparameters[index] = val ;
351 }
352
353 delete toMinuit ;
354 return kTRUE;
c3c187e5 355
d15a28e7 356}
357
548f0134 358
3758d9fc 359//____________________________________________________________________________
a4e98857 360void AliPHOSClusterizerv1::Init()
361{
2bd5457f 362 // Make all memory allocations which can not be done in default constructor.
363 // Attach the Clusterizer task to the list of PHOS tasks
ba898748 364
9a2cdbdf 365 fEmcCrystals = fGeom->GetNModules() * fGeom->GetNCristalsInModule() ;
3758d9fc 366
7b7c1533 367 if(!gMinuit)
88cb7938 368 gMinuit = new TMinuit(100);
fbf811ec 369
a28333c5 370 if (!fgCalibData)
371 fgCalibData = new AliPHOSCalibData(-1); //use AliCDBManager's run number
372 if (fgCalibData->GetCalibDataEmc() == 0)
373 AliFatal("Calibration parameters for PHOS EMC not found. Stop reconstruction.\n");
e68222ce 374
9a1398dd 375}
7b7c1533 376
9a1398dd 377//____________________________________________________________________________
8d0f3f77 378void AliPHOSClusterizerv1::InitParameters()
379{
380
381 fNumberOfCpvClusters = 0 ;
382 fNumberOfEmcClusters = 0 ;
3799bcb5 383
7e88424f 384 const AliPHOSRecoParam* recoParam = AliPHOSReconstructor::GetRecoParam();
385 if(!recoParam) AliFatal("Reconstruction parameters are not set!");
3799bcb5 386
7e88424f 387 fCpvClusteringThreshold = recoParam->GetEMCClusteringThreshold();
388 fEmcClusteringThreshold = recoParam->GetCPVClusteringThreshold();
8d0f3f77 389
7e88424f 390 fEmcLocMaxCut = recoParam->GetEMCLocalMaxCut();
391 fCpvLocMaxCut = recoParam->GetCPVLocalMaxCut();
ba898748 392
7e88424f 393 fW0 = recoParam->GetEMCLogWeight();
394 fW0CPV = recoParam->GetCPVLogWeight();
8d0f3f77 395
454c62a4 396 fEmcTimeGate = 1.e-6 ;
7e88424f 397 fEcoreRadius = recoParam->GetEMCEcoreRadius();
8d0f3f77 398
7e88424f 399 fToUnfold = recoParam->EMCToUnfold() ;
88cb7938 400
ba898748 401 fWrite = kTRUE ;
8d0f3f77 402}
403
404//____________________________________________________________________________
9a1398dd 405Int_t AliPHOSClusterizerv1::AreNeighbours(AliPHOSDigit * d1, AliPHOSDigit * d2)const
d15a28e7 406{
b2a60966 407 // Gives the neighbourness of two digits = 0 are not neighbour but continue searching
408 // = 1 are neighbour
409 // = 2 are not neighbour but do not continue searching
d07a44a8 410 // =-1 are not neighbour, continue searching, but do not look before d2 next time
a4e98857 411 // neighbours are defined as digits having at least a common vertex
b2a60966 412 // The order of d1 and d2 is important: first (d1) should be a digit already in a cluster
413 // which is compared to a digit (d2) not yet in a cluster
414
d15a28e7 415 Int_t relid1[4] ;
9a2cdbdf 416 fGeom->AbsToRelNumbering(d1->GetId(), relid1) ;
d15a28e7 417
418 Int_t relid2[4] ;
9a2cdbdf 419 fGeom->AbsToRelNumbering(d2->GetId(), relid2) ;
d15a28e7 420
9688c1dd 421 if ( (relid1[0] == relid2[0]) && (relid1[1]==relid2[1]) ) { // inside the same PHOS module
92862013 422 Int_t rowdiff = TMath::Abs( relid1[2] - relid2[2] ) ;
423 Int_t coldiff = TMath::Abs( relid1[3] - relid2[3] ) ;
d15a28e7 424
454c62a4 425 if (( coldiff <= 1 ) && ( rowdiff <= 1 )){ //At least common vertex
426 // if (( relid1[2]==relid2[2] && coldiff <= 1 ) || ( relid1[3]==relid2[3] && rowdiff <= 1 )){ //common side
9688c1dd 427 if((relid1[1] != 0) || (TMath::Abs(d1->GetTime() - d2->GetTime() ) < fEmcTimeGate))
d07a44a8 428 return 1 ;
d15a28e7 429 }
430 else {
431 if((relid2[2] > relid1[2]) && (relid2[3] > relid1[3]+1))
d07a44a8 432 return 2; // Difference in row numbers is too large to look further
d15a28e7 433 }
d07a44a8 434 return 0 ;
d15a28e7 435
436 }
437 else {
d07a44a8 438 if(relid1[0] > relid2[0] && relid1[1]==relid2[1] ) //we switched to the next module
439 return -1 ;
440 if(relid1[1] < relid2[1]) //we switched from EMC(0) to CPV(-1)
441 return -1 ;
d15a28e7 442
d07a44a8 443 return 2 ;
d15a28e7 444
445 }
d72dfbc3 446
d07a44a8 447 return 0 ;
d15a28e7 448}
ba898748 449//____________________________________________________________________________
9a1398dd 450Bool_t AliPHOSClusterizerv1::IsInEmc(AliPHOSDigit * digit) const
d15a28e7 451{
b2a60966 452 // Tells if (true) or not (false) the digit is in a PHOS-EMC module
453
9f616d61 454 Bool_t rv = kFALSE ;
d15a28e7 455
9a2cdbdf 456 Int_t nEMC = fGeom->GetNModules()*fGeom->GetNPhi()*fGeom->GetNZ();
d15a28e7 457
2b629790 458 if(digit->GetId() <= nEMC ) rv = kTRUE;
ed4205d8 459
460 return rv ;
461}
462
463//____________________________________________________________________________
9a1398dd 464Bool_t AliPHOSClusterizerv1::IsInCpv(AliPHOSDigit * digit) const
ed4205d8 465{
fad3e5b9 466 // Tells if (true) or not (false) the digit is in a PHOS-CPV module
ed4205d8 467
468 Bool_t rv = kFALSE ;
88cb7938 469
9a2cdbdf 470 Int_t nEMC = fGeom->GetNModules()*fGeom->GetNPhi()*fGeom->GetNZ();
ed4205d8 471
2b629790 472 if(digit->GetId() > nEMC ) rv = kTRUE;
d15a28e7 473
474 return rv ;
475}
9a1398dd 476
477//____________________________________________________________________________
88cb7938 478void AliPHOSClusterizerv1::WriteRecPoints()
a4e98857 479{
7b7c1533 480
481 // Creates new branches with given title
a4e98857 482 // fills and writes into TreeR.
88cb7938 483
9a1398dd 484 Int_t index ;
ba898748 485 //Evaluate position, dispersion and other RecPoint properties..
9a2cdbdf 486 Int_t nEmc = fEMCRecPoints->GetEntriesFast();
7e88424f 487 Float_t emcMinE= AliPHOSReconstructor::GetRecoParam()->GetEMCMinE(); //Minimal digit energy
e347da7b 488 TVector3 fakeVtx(0.,0.,0.) ;
ba898748 489 for(index = 0; index < nEmc; index++){
cd79ec76 490 AliPHOSEmcRecPoint * rp =
9a2cdbdf 491 dynamic_cast<AliPHOSEmcRecPoint *>( fEMCRecPoints->At(index) );
a28333c5 492 rp->Purify(emcMinE) ;
a978bcea 493 if(rp->GetMultiplicity()==0){
9a2cdbdf 494 fEMCRecPoints->RemoveAt(index) ;
ba898748 495 delete rp ;
cd79ec76 496 continue;
ba898748 497 }
a978bcea 498
cd79ec76 499 // No vertex is available now, calculate corrections in PID
e347da7b 500 rp->EvalAll(fDigitsArr) ;
d55c9739 501 rp->EvalCoreEnergy(fW0,fEcoreRadius,fDigitsArr) ;
9a2cdbdf 502 rp->EvalAll(fW0,fakeVtx,fDigitsArr) ;
cd79ec76 503 rp->EvalLocal2TrackingCSTransform();
ba898748 504 }
9a2cdbdf 505 fEMCRecPoints->Compress() ;
6d0a5c2e 506 fEMCRecPoints->Sort() ;
9a2cdbdf 507 // fEMCRecPoints->Expand(fEMCRecPoints->GetEntriesFast()) ;
508 for(index = 0; index < fEMCRecPoints->GetEntries(); index++){
509 dynamic_cast<AliPHOSEmcRecPoint *>( fEMCRecPoints->At(index) )->SetIndexInList(index) ;
ba898748 510 }
fbf811ec 511
af0b0570 512 //For each rec.point set the distance to the nearest bad crystal (BVP)
513 SetDistancesToBadChannels();
514
9a1398dd 515 //Now the same for CPV
9a2cdbdf 516 for(index = 0; index < fCPVRecPoints->GetEntries(); index++){
517 AliPHOSCpvRecPoint * rp = dynamic_cast<AliPHOSCpvRecPoint *>( fCPVRecPoints->At(index) );
e347da7b 518 rp->EvalAll(fDigitsArr) ;
519 rp->EvalAll(fW0CPV,fakeVtx,fDigitsArr) ;
76e42795 520 rp->EvalLocal2TrackingCSTransform();
ba898748 521 }
6d0a5c2e 522 fCPVRecPoints->Sort() ;
fbf811ec 523
9a2cdbdf 524 for(index = 0; index < fCPVRecPoints->GetEntries(); index++)
525 dynamic_cast<AliPHOSCpvRecPoint *>( fCPVRecPoints->At(index) )->SetIndexInList(index) ;
fbf811ec 526
9a2cdbdf 527 fCPVRecPoints->Expand(fCPVRecPoints->GetEntriesFast()) ;
9a1398dd 528
ba898748 529 if(fWrite){ //We write TreeR
9a2cdbdf 530 fTreeR->Fill();
ba898748 531 }
9a1398dd 532}
533
534//____________________________________________________________________________
535void AliPHOSClusterizerv1::MakeClusters()
536{
537 // Steering method to construct the clusters stored in a list of Reconstructed Points
538 // A cluster is defined as a list of neighbour digits
d15a28e7 539
8d8258f6 540 fNumberOfCpvClusters = 0 ;
541 fNumberOfEmcClusters = 0 ;
542
d07a44a8 543 //Mark all digits as unused yet
78b28884 544 const Int_t maxNDigits = 1500;
d07a44a8 545 Int_t nDigits=fDigitsArr->GetEntriesFast() ;
78b28884 546 if (nDigits > maxNDigits) {
547 AliWarning(Form("Skip event with too high digit occupancy: nDigits=%d",nDigits));
548 return;
549 }
550
d07a44a8 551 for(Int_t i=0; i<nDigits; i++){
552 fDigitsUsed[i]=0 ;
553 }
554 Int_t iFirst = 0 ; //first index of digit which potentially can be a part of cluster
555 //e.g. first digit in this module, first CPV digit etc.
d15a28e7 556 AliPHOSDigit * digit ;
78b28884 557 TArrayI clusterdigitslist(maxNDigits) ;
d07a44a8 558 AliPHOSRecPoint * clu = 0 ;
559 for(Int_t i=0; i<nDigits; i++){
560 if(fDigitsUsed[i])
561 continue ;
6ad0bfa0 562
d07a44a8 563 digit=static_cast<AliPHOSDigit*>(fDigitsArr->At(i)) ;
88cb7938 564
d07a44a8 565 clu=0 ;
c161df70 566
d15a28e7 567 Int_t index ;
f2bc1b87 568
d07a44a8 569 //is this digit so energetic that start cluster?
a28333c5 570 if (( IsInEmc(digit) && digit->GetEnergy() > fEmcClusteringThreshold ) ||
571 ( IsInCpv(digit) && digit->GetEnergy() > fCpvClusteringThreshold ) ) {
d15a28e7 572 Int_t iDigitInCluster = 0 ;
7b7c1533 573
6ad0bfa0 574 if ( IsInEmc(digit) ) {
88cb7938 575 // start a new EMC RecPoint
9a2cdbdf 576 if(fNumberOfEmcClusters >= fEMCRecPoints->GetSize())
577 fEMCRecPoints->Expand(2*fNumberOfEmcClusters+1) ;
88cb7938 578
9a2cdbdf 579 fEMCRecPoints->AddAt(new AliPHOSEmcRecPoint(""), fNumberOfEmcClusters) ;
d07a44a8 580 clu = static_cast<AliPHOSEmcRecPoint *>( fEMCRecPoints->At(fNumberOfEmcClusters) ) ;
e95226ae 581 fNumberOfEmcClusters++ ;
a28333c5 582 clu->AddDigit(*digit, digit->GetEnergy()) ;
e95226ae 583 clusterdigitslist[iDigitInCluster] = digit->GetIndexInList() ;
584 iDigitInCluster++ ;
d07a44a8 585 fDigitsUsed[i]=kTRUE ;
d72dfbc3 586 } else {
88cb7938 587 // start a new CPV cluster
9a2cdbdf 588 if(fNumberOfCpvClusters >= fCPVRecPoints->GetSize())
589 fCPVRecPoints->Expand(2*fNumberOfCpvClusters+1);
88cb7938 590
9a2cdbdf 591 fCPVRecPoints->AddAt(new AliPHOSCpvRecPoint(""), fNumberOfCpvClusters) ;
d07a44a8 592 clu = static_cast<AliPHOSCpvRecPoint *>( fCPVRecPoints->At(fNumberOfCpvClusters) ) ;
88cb7938 593 fNumberOfCpvClusters++ ;
a28333c5 594 clu->AddDigit(*digit, digit->GetEnergy()) ;
88cb7938 595 clusterdigitslist[iDigitInCluster] = digit->GetIndexInList() ;
596 iDigitInCluster++ ;
d07a44a8 597 fDigitsUsed[i]=kTRUE ;
d15a28e7 598 } // else
599
d07a44a8 600 //Now scan remaining digits in list to find neigbours of our seed
601
d15a28e7 602 AliPHOSDigit * digitN ;
603 index = 0 ;
9f616d61 604 while (index < iDigitInCluster){ // scan over digits already in cluster
d07a44a8 605 digit = static_cast<AliPHOSDigit*>( fDigitsArr->At(clusterdigitslist[index]) ) ;
88cb7938 606 index++ ;
d07a44a8 607 for(Int_t j=iFirst; j<nDigits; j++){
608 if(fDigitsUsed[j])
609 continue ; //look through remaining digits
610 digitN = static_cast<AliPHOSDigit*>( fDigitsArr->At(j) ) ;
88cb7938 611 Int_t ineb = AreNeighbours(digit, digitN); // call (digit,digitN) in THAT oder !!!!!
d15a28e7 612 switch (ineb ) {
d07a44a8 613 case -1: //too early (e.g. previous module), do not look before j at subsequent passes
614 iFirst=j ;
615 break ;
9f616d61 616 case 0 : // not a neighbour
88cb7938 617 break ;
618 case 1 : // are neighbours
a28333c5 619 clu->AddDigit(*digitN, digitN->GetEnergy());
d07a44a8 620 clusterdigitslist[iDigitInCluster] = j ;
88cb7938 621 iDigitInCluster++ ;
d07a44a8 622 fDigitsUsed[j]=kTRUE ;
88cb7938 623 break ;
9f616d61 624 case 2 : // too far from each other
88cb7938 625 goto endofloop;
626 } // switch
627
d07a44a8 628 }
88cb7938 629
d07a44a8 630 endofloop: ; //scanned all possible neighbours for this digit
88cb7938 631
d15a28e7 632 } // loop over cluster
ad8cfaf4 633 } // energy theshold
d07a44a8 634 }
9688c1dd 635
9a1398dd 636}
637
638//____________________________________________________________________________
a4e98857 639void AliPHOSClusterizerv1::MakeUnfolding()
640{
641 // Unfolds clusters using the shape of an ElectroMagnetic shower
9688c1dd 642 // Performs unfolding of all EMC/CPV clusters
9a1398dd 643
a4e98857 644 // Unfold first EMC clusters
9a1398dd 645 if(fNumberOfEmcClusters > 0){
646
9a2cdbdf 647 Int_t nModulesToUnfold = fGeom->GetNModules() ;
9a1398dd 648
649 Int_t numberofNotUnfolded = fNumberOfEmcClusters ;
650 Int_t index ;
651 for(index = 0 ; index < numberofNotUnfolded ; index++){
652
9a2cdbdf 653 AliPHOSEmcRecPoint * emcRecPoint = dynamic_cast<AliPHOSEmcRecPoint *>( fEMCRecPoints->At(index) ) ;
9a1398dd 654 if(emcRecPoint->GetPHOSMod()> nModulesToUnfold)
88cb7938 655 break ;
9a1398dd 656
657 Int_t nMultipl = emcRecPoint->GetMultiplicity() ;
a0636361 658 AliPHOSDigit ** maxAt = new AliPHOSDigit*[nMultipl] ;
9a1398dd 659 Float_t * maxAtEnergy = new Float_t[nMultipl] ;
9a2cdbdf 660 Int_t nMax = emcRecPoint->GetNumberOfLocalMax(maxAt, maxAtEnergy,fEmcLocMaxCut,fDigitsArr) ;
9a1398dd 661
662 if( nMax > 1 ) { // if cluster is very flat (no pronounced maximum) then nMax = 0
88cb7938 663 UnfoldCluster(emcRecPoint, nMax, maxAt, maxAtEnergy) ;
a28333c5 664
9a2cdbdf 665 fEMCRecPoints->Remove(emcRecPoint);
666 fEMCRecPoints->Compress() ;
88cb7938 667 index-- ;
668 fNumberOfEmcClusters -- ;
669 numberofNotUnfolded-- ;
9a1398dd 670 }
c6bf27f2 671 else{
672 emcRecPoint->SetNExMax(1) ; //Only one local maximum
673 }
9a1398dd 674
675 delete[] maxAt ;
676 delete[] maxAtEnergy ;
677 }
678 }
a4e98857 679 // Unfolding of EMC clusters finished
9a1398dd 680
681
a4e98857 682 // Unfold now CPV clusters
9a1398dd 683 if(fNumberOfCpvClusters > 0){
684
9a2cdbdf 685 Int_t nModulesToUnfold = fGeom->GetNModules() ;
9a1398dd 686
687 Int_t numberofCpvNotUnfolded = fNumberOfCpvClusters ;
688 Int_t index ;
689 for(index = 0 ; index < numberofCpvNotUnfolded ; index++){
690
9a2cdbdf 691 AliPHOSRecPoint * recPoint = dynamic_cast<AliPHOSRecPoint *>( fCPVRecPoints->At(index) ) ;
9a1398dd 692
693 if(recPoint->GetPHOSMod()> nModulesToUnfold)
88cb7938 694 break ;
9a1398dd 695
88cb7938 696 AliPHOSEmcRecPoint * emcRecPoint = dynamic_cast<AliPHOSEmcRecPoint*>(recPoint) ;
9a1398dd 697
698 Int_t nMultipl = emcRecPoint->GetMultiplicity() ;
a0636361 699 AliPHOSDigit ** maxAt = new AliPHOSDigit*[nMultipl] ;
9a1398dd 700 Float_t * maxAtEnergy = new Float_t[nMultipl] ;
9a2cdbdf 701 Int_t nMax = emcRecPoint->GetNumberOfLocalMax(maxAt, maxAtEnergy,fCpvLocMaxCut,fDigitsArr) ;
9a1398dd 702
703 if( nMax > 1 ) { // if cluster is very flat (no pronounced maximum) then nMax = 0
88cb7938 704 UnfoldCluster(emcRecPoint, nMax, maxAt, maxAtEnergy) ;
9a2cdbdf 705 fCPVRecPoints->Remove(emcRecPoint);
706 fCPVRecPoints->Compress() ;
88cb7938 707 index-- ;
708 numberofCpvNotUnfolded-- ;
709 fNumberOfCpvClusters-- ;
9a1398dd 710 }
711
712 delete[] maxAt ;
713 delete[] maxAtEnergy ;
714 }
715 }
716 //Unfolding of Cpv clusters finished
717
718}
719
720//____________________________________________________________________________
a978bcea 721Double_t AliPHOSClusterizerv1::ShowerShape(Double_t x, Double_t z)
9a1398dd 722{
723 // Shape of the shower (see PHOS TDR)
a4e98857 724 // If you change this function, change also the gradient evaluation in ChiSquare()
9a1398dd 725
a978bcea 726 //for the moment we neglect dependence on the incident angle.
727
728 Double_t r2 = x*x + z*z ;
729 Double_t r4 = r2*r2 ;
730 Double_t r295 = TMath::Power(r2, 2.95/2.) ;
9a1398dd 731 Double_t shape = TMath::Exp( -r4 * (1. / (2.32 + 0.26 * r4) + 0.0316 / (1 + 0.0652 * r295) ) ) ;
732 return shape ;
733}
734
735//____________________________________________________________________________
736void AliPHOSClusterizerv1::UnfoldCluster(AliPHOSEmcRecPoint * iniEmc,
88cb7938 737 Int_t nMax,
738 AliPHOSDigit ** maxAt,
739 Float_t * maxAtEnergy)
9a1398dd 740{
741 // Performs the unfolding of a cluster with nMax overlapping showers
742
743 Int_t nPar = 3 * nMax ;
744 Float_t * fitparameters = new Float_t[nPar] ;
745
746 Bool_t rv = FindFit(iniEmc, maxAt, maxAtEnergy, nPar, fitparameters) ;
a28333c5 747
9a1398dd 748 if( !rv ) {
88cb7938 749 // Fit failed, return and remove cluster
c6bf27f2 750 iniEmc->SetNExMax(-1) ;
9a1398dd 751 delete[] fitparameters ;
752 return ;
753 }
754
755 // create ufolded rec points and fill them with new energy lists
756 // First calculate energy deposited in each sell in accordance with fit (without fluctuations): efit[]
757 // and later correct this number in acordance with actual energy deposition
758
759 Int_t nDigits = iniEmc->GetMultiplicity() ;
760 Float_t * efit = new Float_t[nDigits] ;
a978bcea 761 Float_t xDigit=0.,zDigit=0. ;
7b7c1533 762 Float_t xpar=0.,zpar=0.,epar=0. ;
9a1398dd 763 Int_t relid[4] ;
7b7c1533 764 AliPHOSDigit * digit = 0 ;
9a1398dd 765 Int_t * emcDigits = iniEmc->GetDigitsList() ;
766
a978bcea 767 TVector3 vIncid ;
768
9a1398dd 769 Int_t iparam ;
770 Int_t iDigit ;
771 for(iDigit = 0 ; iDigit < nDigits ; iDigit ++){
9a2cdbdf 772 digit = dynamic_cast<AliPHOSDigit*>( fDigitsArr->At(emcDigits[iDigit] ) ) ;
773 fGeom->AbsToRelNumbering(digit->GetId(), relid) ;
774 fGeom->RelPosInModule(relid, xDigit, zDigit) ;
9a1398dd 775 efit[iDigit] = 0;
776
777 iparam = 0 ;
778 while(iparam < nPar ){
779 xpar = fitparameters[iparam] ;
780 zpar = fitparameters[iparam+1] ;
781 epar = fitparameters[iparam+2] ;
782 iparam += 3 ;
9a2cdbdf 783// fGeom->GetIncidentVector(fVtx,relid[0],xpar,zpar,vIncid) ;
a978bcea 784// efit[iDigit] += epar * ShowerShape(xDigit - xpar,zDigit - zpar,vIncid) ;
785 efit[iDigit] += epar * ShowerShape(xDigit - xpar,zDigit - zpar) ;
9a1398dd 786 }
787 }
788
9a1398dd 789 // Now create new RecPoints and fill energy lists with efit corrected to fluctuations
790 // so that energy deposited in each cell is distributed betwin new clusters proportionally
791 // to its contribution to efit
792
793 Float_t * emcEnergies = iniEmc->GetEnergiesList() ;
794 Float_t ratio ;
795
796 iparam = 0 ;
797 while(iparam < nPar ){
798 xpar = fitparameters[iparam] ;
799 zpar = fitparameters[iparam+1] ;
800 epar = fitparameters[iparam+2] ;
801 iparam += 3 ;
9a2cdbdf 802// fGeom->GetIncidentVector(fVtx,iniEmc->GetPHOSMod(),xpar,zpar,vIncid) ;
a28333c5 803
7b7c1533 804 AliPHOSEmcRecPoint * emcRP = 0 ;
9a1398dd 805
9a2cdbdf 806 if(iniEmc->IsEmc()){ //create new entries in fEMCRecPoints...
9a1398dd 807
9a2cdbdf 808 if(fNumberOfEmcClusters >= fEMCRecPoints->GetSize())
809 fEMCRecPoints->Expand(2*fNumberOfEmcClusters) ;
9a1398dd 810
9a2cdbdf 811 (*fEMCRecPoints)[fNumberOfEmcClusters] = new AliPHOSEmcRecPoint("") ;
812 emcRP = dynamic_cast<AliPHOSEmcRecPoint *>( fEMCRecPoints->At(fNumberOfEmcClusters) ) ;
9a1398dd 813 fNumberOfEmcClusters++ ;
c6bf27f2 814 emcRP->SetNExMax((Int_t)nPar/3) ;
9a1398dd 815 }
9a2cdbdf 816 else{//create new entries in fCPVRecPoints
817 if(fNumberOfCpvClusters >= fCPVRecPoints->GetSize())
818 fCPVRecPoints->Expand(2*fNumberOfCpvClusters) ;
9a1398dd 819
9a2cdbdf 820 (*fCPVRecPoints)[fNumberOfCpvClusters] = new AliPHOSCpvRecPoint("") ;
821 emcRP = dynamic_cast<AliPHOSEmcRecPoint *>( fCPVRecPoints->At(fNumberOfCpvClusters) ) ;
9a1398dd 822 fNumberOfCpvClusters++ ;
823 }
824
825 Float_t eDigit ;
826 for(iDigit = 0 ; iDigit < nDigits ; iDigit ++){
9a2cdbdf 827 digit = dynamic_cast<AliPHOSDigit*>( fDigitsArr->At( emcDigits[iDigit] ) ) ;
828 fGeom->AbsToRelNumbering(digit->GetId(), relid) ;
829 fGeom->RelPosInModule(relid, xDigit, zDigit) ;
a978bcea 830// ratio = epar * ShowerShape(xDigit - xpar,zDigit - zpar,vIncid) / efit[iDigit] ;
831 ratio = epar * ShowerShape(xDigit - xpar,zDigit - zpar) / efit[iDigit] ;
9a1398dd 832 eDigit = emcEnergies[iDigit] * ratio ;
833 emcRP->AddDigit( *digit, eDigit ) ;
88cb7938 834 }
9a1398dd 835 }
836
837 delete[] fitparameters ;
838 delete[] efit ;
839
840}
841
842//_____________________________________________________________________________
843void AliPHOSClusterizerv1::UnfoldingChiSquare(Int_t & nPar, Double_t * Grad, Double_t & fret, Double_t * x, Int_t iflag)
844{
a4e98857 845 // Calculates the Chi square for the cluster unfolding minimization
9a1398dd 846 // Number of parameters, Gradient, Chi squared, parameters, what to do
847
88cb7938 848 TList * toMinuit = dynamic_cast<TList*>( gMinuit->GetObjectFit() ) ;
9a1398dd 849
88cb7938 850 AliPHOSEmcRecPoint * emcRP = dynamic_cast<AliPHOSEmcRecPoint*>( toMinuit->At(0) ) ;
851 TClonesArray * digits = dynamic_cast<TClonesArray*>( toMinuit->At(1) ) ;
9a2cdbdf 852 // A bit buggy way to get an access to the geometry
853 // To be revised!
854 AliPHOSGeometry *geom = dynamic_cast<AliPHOSGeometry *>(toMinuit->At(2));
855
856// TVector3 * vtx = dynamic_cast<TVector3*>(toMinuit->At(3)) ; //Vertex position
9a1398dd 857
88cb7938 858 // AliPHOSEmcRecPoint * emcRP = dynamic_cast<AliPHOSEmcRecPoint *>( gMinuit->GetObjectFit() ) ; // EmcRecPoint to fit
9a1398dd 859
860 Int_t * emcDigits = emcRP->GetDigitsList() ;
861
7b7c1533 862 Int_t nOdigits = emcRP->GetDigitsMultiplicity() ;
9a1398dd 863
864 Float_t * emcEnergies = emcRP->GetEnergiesList() ;
88cb7938 865
a978bcea 866// TVector3 vInc ;
9a1398dd 867 fret = 0. ;
868 Int_t iparam ;
869
870 if(iflag == 2)
871 for(iparam = 0 ; iparam < nPar ; iparam++)
872 Grad[iparam] = 0 ; // Will evaluate gradient
873
874 Double_t efit ;
875
876 AliPHOSDigit * digit ;
877 Int_t iDigit ;
878
7b7c1533 879 for( iDigit = 0 ; iDigit < nOdigits ; iDigit++) {
9a1398dd 880
88cb7938 881 digit = dynamic_cast<AliPHOSDigit*>( digits->At( emcDigits[iDigit] ) );
9a1398dd 882
883 Int_t relid[4] ;
884 Float_t xDigit ;
885 Float_t zDigit ;
886
887 geom->AbsToRelNumbering(digit->GetId(), relid) ;
888
889 geom->RelPosInModule(relid, xDigit, zDigit) ;
890
891 if(iflag == 2){ // calculate gradient
892 Int_t iParam = 0 ;
893 efit = 0 ;
894 while(iParam < nPar ){
a978bcea 895 Double_t dx = (xDigit - x[iParam]) ;
88cb7938 896 iParam++ ;
a978bcea 897 Double_t dz = (zDigit - x[iParam]) ;
88cb7938 898 iParam++ ;
9a2cdbdf 899// fGeom->GetIncidentVector(*vtx,emcRP->GetPHOSMod(),x[iParam-2],x[iParam-1],vInc) ;
a978bcea 900// efit += x[iParam] * ShowerShape(dx,dz,vInc) ;
901 efit += x[iParam] * ShowerShape(dx,dz) ;
88cb7938 902 iParam++ ;
9a1398dd 903 }
88cb7938 904 Double_t sum = 2. * (efit - emcEnergies[iDigit]) / emcEnergies[iDigit] ; // Here we assume, that sigma = sqrt(E)
9a1398dd 905 iParam = 0 ;
906 while(iParam < nPar ){
88cb7938 907 Double_t xpar = x[iParam] ;
908 Double_t zpar = x[iParam+1] ;
909 Double_t epar = x[iParam+2] ;
9a2cdbdf 910// fGeom->GetIncidentVector(*vtx,emcRP->GetPHOSMod(),xpar,zpar,vInc) ;
88cb7938 911 Double_t dr = TMath::Sqrt( (xDigit - xpar) * (xDigit - xpar) + (zDigit - zpar) * (zDigit - zpar) );
a978bcea 912// Double_t shape = sum * ShowerShape(xDigit - xpar,zDigit - zpar,vInc) ;
913 Double_t shape = sum * ShowerShape(xDigit - xpar,zDigit - zpar) ;
914//DP: No incident angle dependence in gradient yet!!!!!!
88cb7938 915 Double_t r4 = dr*dr*dr*dr ;
916 Double_t r295 = TMath::Power(dr,2.95) ;
917 Double_t deriv =-4. * dr*dr * ( 2.32 / ( (2.32 + 0.26 * r4) * (2.32 + 0.26 * r4) ) +
918 0.0316 * (1. + 0.0171 * r295) / ( ( 1. + 0.0652 * r295) * (1. + 0.0652 * r295) ) ) ;
919
920 Grad[iParam] += epar * shape * deriv * (xpar - xDigit) ; // Derivative over x
921 iParam++ ;
922 Grad[iParam] += epar * shape * deriv * (zpar - zDigit) ; // Derivative over z
923 iParam++ ;
924 Grad[iParam] += shape ; // Derivative over energy
925 iParam++ ;
9a1398dd 926 }
927 }
928 efit = 0;
929 iparam = 0 ;
930
931 while(iparam < nPar ){
932 Double_t xpar = x[iparam] ;
933 Double_t zpar = x[iparam+1] ;
934 Double_t epar = x[iparam+2] ;
935 iparam += 3 ;
9a2cdbdf 936// fGeom->GetIncidentVector(*vtx,emcRP->GetPHOSMod(),xpar,zpar,vInc) ;
a978bcea 937// efit += epar * ShowerShape(xDigit - xpar,zDigit - zpar,vInc) ;
938 efit += epar * ShowerShape(xDigit - xpar,zDigit - zpar) ;
9a1398dd 939 }
940
88cb7938 941 fret += (efit-emcEnergies[iDigit])*(efit-emcEnergies[iDigit])/emcEnergies[iDigit] ;
9a1398dd 942 // Here we assume, that sigma = sqrt(E)
943 }
83974468 944
d15a28e7 945}
946
947//____________________________________________________________________________
702ab87e 948void AliPHOSClusterizerv1::Print(const Option_t *)const
d15a28e7 949{
d1de15f5 950 // Print clusterizer parameters
951
21cd0c07 952 TString message ;
953 TString taskName(GetName()) ;
954 taskName.ReplaceAll(Version(), "") ;
955
956 if( strcmp(GetName(), "") !=0 ) {
9a1398dd 957 // Print parameters
21cd0c07 958 message = "\n--------------- %s %s -----------\n" ;
959 message += "Clusterizing digits from the file: %s\n" ;
960 message += " Branch: %s\n" ;
961 message += " EMC Clustering threshold = %f\n" ;
962 message += " EMC Local Maximum cut = %f\n" ;
963 message += " EMC Logarothmic weight = %f\n" ;
964 message += " CPV Clustering threshold = %f\n" ;
965 message += " CPV Local Maximum cut = %f\n" ;
966 message += " CPV Logarothmic weight = %f\n" ;
9a1398dd 967 if(fToUnfold)
21cd0c07 968 message += " Unfolding on\n" ;
9a1398dd 969 else
21cd0c07 970 message += " Unfolding off\n" ;
9a1398dd 971
21cd0c07 972 message += "------------------------------------------------------------------" ;
9a1398dd 973 }
21cd0c07 974 else
975 message = " AliPHOSClusterizerv1 not initialized " ;
976
351dd634 977 AliInfo(Form("%s, %s %s %s %s %s %s %s %s %s %s", message.Data(),
21cd0c07 978 taskName.Data(),
979 GetTitle(),
980 taskName.Data(),
981 GetName(),
982 fEmcClusteringThreshold,
983 fEmcLocMaxCut,
984 fW0,
985 fCpvClusteringThreshold,
986 fCpvLocMaxCut,
351dd634 987 fW0CPV )) ;
9a1398dd 988}
a978bcea 989//____________________________________________________________________________
a4e98857 990void AliPHOSClusterizerv1::PrintRecPoints(Option_t * option)
991{
992 // Prints list of RecPoints produced at the current pass of AliPHOSClusterizer
9a1398dd 993
9a2cdbdf 994 AliInfo(Form("\nFound %d EMC RecPoints and %d CPV RecPoints",
995 fEMCRecPoints->GetEntriesFast(),
996 fCPVRecPoints->GetEntriesFast() )) ;
88cb7938 997
9a1398dd 998 if(strstr(option,"all")) {
709e117a 999 printf("\n EMC clusters \n") ;
1000 printf("Index Ene(MeV) Multi Module X Y Z Lambdas_1 Lambda_2 # of prim Primaries list\n") ;
9a1398dd 1001 Int_t index ;
9a2cdbdf 1002 for (index = 0 ; index < fEMCRecPoints->GetEntries() ; index++) {
1003 AliPHOSEmcRecPoint * rp = (AliPHOSEmcRecPoint * )fEMCRecPoints->At(index) ;
9a1398dd 1004 TVector3 locpos;
1005 rp->GetLocalPosition(locpos);
9a1398dd 1006 Float_t lambda[2];
1007 rp->GetElipsAxis(lambda);
9a1398dd 1008 Int_t * primaries;
1009 Int_t nprimaries;
1010 primaries = rp->GetPrimaries(nprimaries);
709e117a 1011 printf("\n%6d %8.2f %3d %2d %4.1f %4.1f %4.1f %4f %4f %2d : ",
11f9c5ff 1012 rp->GetIndexInList(), rp->GetEnergy(), rp->GetMultiplicity(), rp->GetPHOSMod(),
1013 locpos.X(), locpos.Y(), locpos.Z(), lambda[0], lambda[1], nprimaries) ;
3bf72d32 1014
21cd0c07 1015 for (Int_t iprimary=0; iprimary<nprimaries; iprimary++) {
709e117a 1016 printf("%d ", primaries[iprimary] ) ;
21cd0c07 1017 }
709e117a 1018 printf("\n") ;
1019 }
1020
1021 //Now plot CPV recPoints
1022 printf("\n CPV clusters \n") ;
1023 printf("Index Ene(MeV) Module X Y Z \n") ;
9a2cdbdf 1024 for (index = 0 ; index < fCPVRecPoints->GetEntries() ; index++) {
1025 AliPHOSCpvRecPoint * rp = (AliPHOSCpvRecPoint * )fCPVRecPoints->At(index) ;
2bb500e5 1026
1027 TVector3 locpos;
1028 rp->GetLocalPosition(locpos);
1029
1030 printf("\n%6d %8.2f %2d %4.1f %4.1f %4.1f \n",
1031 rp->GetIndexInList(), rp->GetEnergy(), rp->GetPHOSMod(),
1032 locpos.X(), locpos.Y(), locpos.Z()) ;
88cb7938 1033 }
9a1398dd 1034 }
d15a28e7 1035}
9a1398dd 1036
af0b0570 1037
1038//____________________________________________________________________________
1039void AliPHOSClusterizerv1::SetDistancesToBadChannels()
1040{
1041 //For each EMC rec. point set the distance to the nearest bad crystal.
1042 //Author: Boris Polichtchouk
1043
e68222ce 1044 if(!fgCalibData->GetNumOfEmcBadChannels()) return;
1045 AliInfo(Form("%d bad channel(s) found.\n",fgCalibData->GetNumOfEmcBadChannels()));
af0b0570 1046
af0b0570 1047 Int_t badIds[8000];
e68222ce 1048 fgCalibData->EmcBadChannelIds(badIds);
af0b0570 1049
1050 AliPHOSEmcRecPoint* rp;
1051
1052 TMatrixF gmat;
1053 TVector3 gposRecPoint; // global (in ALICE frame) position of rec. point
1054 TVector3 gposBadChannel; // global position of bad crystal
1055 TVector3 dR;
1056
1057 Float_t dist,minDist;
79987dcd 1058 Int_t relid[4]={0,0,0,0} ;
1059 TVector3 lpos ;
9a2cdbdf 1060 for(Int_t iRP=0; iRP<fEMCRecPoints->GetEntries(); iRP++){
1061 rp = (AliPHOSEmcRecPoint*)fEMCRecPoints->At(iRP);
79987dcd 1062 //evaluate distance to border
1063 relid[0]=rp->GetPHOSMod() ;
1064 relid[2]=1 ;
1065 relid[3]=1 ;
1066 Float_t xcorner,zcorner;
1067 fGeom->RelPosInModule(relid,xcorner,zcorner) ; //coordinate of the corner cell
1068 rp->GetLocalPosition(lpos) ;
1069 minDist = 2.2+TMath::Min(-xcorner-TMath::Abs(lpos.X()),-zcorner-TMath::Abs(lpos.Z())); //2.2 - crystal size
e68222ce 1070 for(Int_t iBad=0; iBad<fgCalibData->GetNumOfEmcBadChannels(); iBad++) {
e250de8f 1071 fGeom->AbsToRelNumbering(badIds[iBad],relid) ;
79987dcd 1072 if(relid[0]!=rp->GetPHOSMod()) //We can not evaluate global position directly since
1073 continue ; //bad channels can be in the module which does not exist in simulations.
af0b0570 1074 rp->GetGlobalPosition(gposRecPoint,gmat);
9a2cdbdf 1075 fGeom->RelPosInAlice(badIds[iBad],gposBadChannel);
af0b0570 1076 AliDebug(2,Form("BC position:[%.3f,%.3f,%.3f], RP position:[%.3f,%.3f,%.3f]. E=%.3f\n",
1077 gposBadChannel.X(),gposBadChannel.Y(),gposBadChannel.Z(),
1078 gposRecPoint.X(),gposRecPoint.Y(),gposRecPoint.Z(),rp->GetEnergy()));
1079 dR = gposBadChannel-gposRecPoint;
1080 dist = dR.Mag();
1081 if(dist<minDist) minDist = dist;
1082 }
1083
1084 rp->SetDistanceToBadCrystal(minDist);
1085 }
1086
1087}