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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
d15a28e7 18//_________________________________________________________________________
b2a60966 19// RecPoint implementation for PHOS-EMC
20// An EmcRecPoint is a cluster of digits
baef0810 21//*--
b2a60966 22//*-- Author: Dmitri Peressounko (RRC KI & SUBATECH)
23
d15a28e7 24
25// --- ROOT system ---
9f616d61 26#include "TPad.h"
27#include "TH2.h"
d15a28e7 28#include "TMath.h"
9f616d61 29#include "TCanvas.h"
d15a28e7 30
31// --- Standard library ---
32
de9ec31b 33#include <iostream.h>
d15a28e7 34
35// --- AliRoot header files ---
36
a6eedfad 37 #include "AliGenerator.h"
d15a28e7 38#include "AliPHOSGeometry.h"
39#include "AliPHOSEmcRecPoint.h"
40#include "AliRun.h"
7b7c1533 41#include "AliPHOSGetter.h"
d15a28e7 42
43ClassImp(AliPHOSEmcRecPoint)
44
45//____________________________________________________________________________
7932f811 46AliPHOSEmcRecPoint::AliPHOSEmcRecPoint() : AliPHOSRecPoint()
d15a28e7 47{
48 // ctor
49
50 fMulDigit = 0 ;
51 fAmp = 0. ;
7932f811 52 fCoreEnergy = 0 ;
53 fEnergyList = 0 ;
9688c1dd 54 fTime = -1. ;
a6eedfad 55 fLocPos.SetX(1000000.) ; //Local position should be evaluated
7b7c1533 56
83974468 57}
58
59//____________________________________________________________________________
60AliPHOSEmcRecPoint::~AliPHOSEmcRecPoint()
61{
88714635 62 // dtor
a4e98857 63
83974468 64 if ( fEnergyList )
65 delete[] fEnergyList ;
d15a28e7 66}
67
d15a28e7 68//____________________________________________________________________________
83974468 69void AliPHOSEmcRecPoint::AddDigit(AliPHOSDigit & digit, Float_t Energy)
d15a28e7 70{
b2a60966 71 // Adds a digit to the RecPoint
a4e98857 72 // and accumulates the total amplitude and the multiplicity
d15a28e7 73
7932f811 74 if(fEnergyList == 0)
75 fEnergyList = new Float_t[fMaxDigit];
76
d15a28e7 77 if ( fMulDigit >= fMaxDigit ) { // increase the size of the lists
9f616d61 78 fMaxDigit*=2 ;
83974468 79 Int_t * tempo = new ( Int_t[fMaxDigit] ) ;
9f616d61 80 Float_t * tempoE = new ( Float_t[fMaxDigit] ) ;
81
82 Int_t index ;
d15a28e7 83 for ( index = 0 ; index < fMulDigit ; index++ ){
83974468 84 tempo[index] = fDigitsList[index] ;
d15a28e7 85 tempoE[index] = fEnergyList[index] ;
86 }
87
9f616d61 88 delete [] fDigitsList ;
83974468 89 fDigitsList = new ( Int_t[fMaxDigit] ) ;
9f616d61 90
91 delete [] fEnergyList ;
92 fEnergyList = new ( Float_t[fMaxDigit] ) ;
93
94 for ( index = 0 ; index < fMulDigit ; index++ ){
95 fDigitsList[index] = tempo[index] ;
96 fEnergyList[index] = tempoE[index] ;
97 }
98
99 delete [] tempo ;
100 delete [] tempoE ;
101 } // if
d15a28e7 102
83974468 103 fDigitsList[fMulDigit] = digit.GetIndexInList() ;
104 fEnergyList[fMulDigit] = Energy ;
105 fMulDigit++ ;
d15a28e7 106 fAmp += Energy ;
7932f811 107
108 EvalPHOSMod(&digit) ;
d15a28e7 109}
110
111//____________________________________________________________________________
ad8cfaf4 112Bool_t AliPHOSEmcRecPoint::AreNeighbours(AliPHOSDigit * digit1, AliPHOSDigit * digit2 ) const
d15a28e7 113{
a4e98857 114 // Tells if (true) or not (false) two digits are neighbors
d15a28e7 115
116 Bool_t aren = kFALSE ;
117
7b7c1533 118 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
119 AliPHOSGeometry * phosgeom = (AliPHOSGeometry*)gime->PHOSGeometry();
120
d15a28e7 121 Int_t relid1[4] ;
92862013 122 phosgeom->AbsToRelNumbering(digit1->GetId(), relid1) ;
d15a28e7 123
124 Int_t relid2[4] ;
92862013 125 phosgeom->AbsToRelNumbering(digit2->GetId(), relid2) ;
d15a28e7 126
92862013 127 Int_t rowdiff = TMath::Abs( relid1[2] - relid2[2] ) ;
128 Int_t coldiff = TMath::Abs( relid1[3] - relid2[3] ) ;
d15a28e7 129
92862013 130 if (( coldiff <= 1 ) && ( rowdiff <= 1 ) && (coldiff + rowdiff > 0))
d15a28e7 131 aren = kTRUE ;
132
133 return aren ;
134}
135
136//____________________________________________________________________________
2a941f4e 137Int_t AliPHOSEmcRecPoint::Compare(const TObject * obj) const
d15a28e7 138{
b2a60966 139 // Compares two RecPoints according to their position in the PHOS modules
140
7932f811 141 Float_t delta = 1 ; //Width of "Sorting row". If you changibg this
142 //value (what is senseless) change as vell delta in
143 //AliPHOSTrackSegmentMakerv* and other RecPoints...
d15a28e7 144 Int_t rv ;
145
146 AliPHOSEmcRecPoint * clu = (AliPHOSEmcRecPoint *)obj ;
147
148
ad8cfaf4 149 Int_t phosmod1 = GetPHOSMod() ;
92862013 150 Int_t phosmod2 = clu->GetPHOSMod() ;
d15a28e7 151
92862013 152 TVector3 locpos1;
7932f811 153 GetLocalPosition(locpos1) ;
92862013 154 TVector3 locpos2;
155 clu->GetLocalPosition(locpos2) ;
d15a28e7 156
92862013 157 if(phosmod1 == phosmod2 ) {
7932f811 158 Int_t rowdif = (Int_t)TMath::Ceil(locpos1.X()/delta)-(Int_t)TMath::Ceil(locpos2.X()/delta) ;
d15a28e7 159 if (rowdif> 0)
7932f811 160 rv = 1 ;
d15a28e7 161 else if(rowdif < 0)
7932f811 162 rv = -1 ;
92862013 163 else if(locpos1.Z()>locpos2.Z())
d15a28e7 164 rv = -1 ;
165 else
166 rv = 1 ;
167 }
168
169 else {
92862013 170 if(phosmod1 < phosmod2 )
d15a28e7 171 rv = -1 ;
172 else
173 rv = 1 ;
174 }
175
176 return rv ;
177}
9f616d61 178//______________________________________________________________________________
baef0810 179void AliPHOSEmcRecPoint::ExecuteEvent(Int_t event, Int_t px, Int_t py) const
9f616d61 180{
9f616d61 181
9688c1dd 182 // Execute action corresponding to one event
183 // This member function is called when a AliPHOSRecPoint is clicked with the locator
184 //
185 // If Left button is clicked on AliPHOSRecPoint, the digits are switched on
186 // and switched off when the mouse button is released.
187
188
189 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
190 if(!gime) return ;
191 AliPHOSGeometry * phosgeom = (AliPHOSGeometry*)gime->PHOSGeometry();
83974468 192
9688c1dd 193 static TGraph * digitgraph = 0 ;
83974468 194
9688c1dd 195 if (!gPad->IsEditable()) return;
83974468 196
9688c1dd 197 TH2F * histo = 0 ;
198 TCanvas * histocanvas ;
199
200 TClonesArray * digits = gime->Digits() ;
201
202 switch (event) {
83974468 203
9688c1dd 204 case kButton1Down: {
205 AliPHOSDigit * digit ;
206 Int_t iDigit;
207 Int_t relid[4] ;
83974468 208
9688c1dd 209 const Int_t kMulDigit = AliPHOSEmcRecPoint::GetDigitsMultiplicity() ;
210 Float_t * xi = new Float_t[kMulDigit] ;
211 Float_t * zi = new Float_t[kMulDigit] ;
83974468 212
9688c1dd 213 // create the histogram for the single cluster
214 // 1. gets histogram boundaries
215 Float_t ximax = -999. ;
216 Float_t zimax = -999. ;
217 Float_t ximin = 999. ;
218 Float_t zimin = 999. ;
83974468 219
9688c1dd 220 for(iDigit=0; iDigit<kMulDigit; iDigit++) {
221 digit = (AliPHOSDigit *) digits->At(fDigitsList[iDigit]) ;
222 phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
223 phosgeom->RelPosInModule(relid, xi[iDigit], zi[iDigit]);
224 if ( xi[iDigit] > ximax )
225 ximax = xi[iDigit] ;
226 if ( xi[iDigit] < ximin )
227 ximin = xi[iDigit] ;
228 if ( zi[iDigit] > zimax )
229 zimax = zi[iDigit] ;
230 if ( zi[iDigit] < zimin )
231 zimin = zi[iDigit] ;
232 }
233 ximax += phosgeom->GetCrystalSize(0) / 2. ;
234 zimax += phosgeom->GetCrystalSize(2) / 2. ;
235 ximin -= phosgeom->GetCrystalSize(0) / 2. ;
236 zimin -= phosgeom->GetCrystalSize(2) / 2. ;
237 Int_t xdim = (int)( (ximax - ximin ) / phosgeom->GetCrystalSize(0) + 0.5 ) ;
238 Int_t zdim = (int)( (zimax - zimin ) / phosgeom->GetCrystalSize(2) + 0.5 ) ;
83974468 239
9688c1dd 240 // 2. gets the histogram title
83974468 241
9688c1dd 242 Text_t title[100] ;
243 sprintf(title,"Energy=%1.2f GeV ; Digits ; %d ", GetEnergy(), GetDigitsMultiplicity()) ;
83974468 244
9688c1dd 245 if (!histo) {
246 delete histo ;
247 histo = 0 ;
248 }
249 histo = new TH2F("cluster3D", title, xdim, ximin, ximax, zdim, zimin, zimax) ;
83974468 250
9688c1dd 251 Float_t x, z ;
252 for(iDigit=0; iDigit<kMulDigit; iDigit++) {
253 digit = (AliPHOSDigit *) digits->At(fDigitsList[iDigit]) ;
254 phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
255 phosgeom->RelPosInModule(relid, x, z);
256 histo->Fill(x, z, fEnergyList[iDigit] ) ;
257 }
83974468 258
9688c1dd 259 if (!digitgraph) {
260 digitgraph = new TGraph(kMulDigit,xi,zi);
261 digitgraph-> SetMarkerStyle(5) ;
262 digitgraph-> SetMarkerSize(1.) ;
263 digitgraph-> SetMarkerColor(1) ;
264 digitgraph-> Paint("P") ;
265 }
83974468 266
9688c1dd 267 // Print() ;
268 histocanvas = new TCanvas("cluster", "a single cluster", 600, 500) ;
269 histocanvas->Draw() ;
270 histo->Draw("lego1") ;
83974468 271
9688c1dd 272 delete[] xi ;
273 delete[] zi ;
83974468 274
9688c1dd 275 break;
276 }
83974468 277
9688c1dd 278 case kButton1Up:
279 if (digitgraph) {
280 delete digitgraph ;
281 digitgraph = 0 ;
282 }
283 break;
9f616d61 284
9688c1dd 285 }
9f616d61 286}
287
d15a28e7 288//____________________________________________________________________________
7932f811 289void AliPHOSEmcRecPoint::EvalDispersion(Float_t logWeight,TClonesArray * digits)
d15a28e7 290{
b2a60966 291 // Calculates the dispersion of the shower at the origine of the RecPoint
292
e5b16749 293 Float_t d = 0. ;
294 Float_t wtot = 0. ;
d15a28e7 295
d084d50d 296 Float_t x = 0.;
297 Float_t z = 0.;
d15a28e7 298
299 AliPHOSDigit * digit ;
7b7c1533 300
301 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
302 AliPHOSGeometry * phosgeom = (AliPHOSGeometry*)gime->PHOSGeometry();
d15a28e7 303
e5b16749 304
305 // Calculates the center of gravity in the local PHOS-module coordinates
306
d15a28e7 307 Int_t iDigit;
e5b16749 308
309 for(iDigit=0; iDigit<fMulDigit; iDigit++) {
310 digit = (AliPHOSDigit *) digits->At(fDigitsList[iDigit]) ;
311 Int_t relid[4] ;
312 Float_t xi ;
313 Float_t zi ;
314 phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
315 phosgeom->RelPosInModule(relid, xi, zi);
316 Float_t w = TMath::Max( 0., logWeight + TMath::Log( fEnergyList[iDigit] / fAmp ) ) ;
317 x += xi * w ;
318 z += zi * w ;
319 wtot += w ;
320 }
321 x /= wtot ;
322 z /= wtot ;
323
324
325// Calculates the dispersion in coordinates
326 wtot = 0.;
88714635 327 for(iDigit=0; iDigit < fMulDigit; iDigit++) {
7932f811 328 digit = (AliPHOSDigit *) digits->At(fDigitsList[iDigit]) ;
d15a28e7 329 Int_t relid[4] ;
330 Float_t xi ;
331 Float_t zi ;
92862013 332 phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
333 phosgeom->RelPosInModule(relid, xi, zi);
7932f811 334 Float_t w = TMath::Max(0.,logWeight+TMath::Log(fEnergyList[iDigit]/fAmp ) ) ;
92862013 335 d += w*((xi-x)*(xi-x) + (zi-z)*(zi-z) ) ;
d15a28e7 336 wtot+=w ;
d084d50d 337
338
d15a28e7 339 }
e5b16749 340
7932f811 341
92862013 342 d /= wtot ;
d15a28e7 343
7932f811 344 fDispersion = TMath::Sqrt(d) ;
c63c49e9 345
d15a28e7 346}
fad3e5b9 347//______________________________________________________________________________
e5b16749 348void AliPHOSEmcRecPoint::EvalCoreEnergy(Float_t logWeight, TClonesArray * digits)
fad3e5b9 349{
a4e98857 350 // This function calculates energy in the core,
351 // i.e. within a radius rad = 3cm around the center. Beyond this radius
352 // in accordance with shower profile the energy deposition
fad3e5b9 353 // should be less than 2%
354
fad3e5b9 355 Float_t coreRadius = 3 ;
356
e5b16749 357 Float_t x = 0 ;
358 Float_t z = 0 ;
fad3e5b9 359
360 AliPHOSDigit * digit ;
7b7c1533 361
362 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
363 AliPHOSGeometry * phosgeom = (AliPHOSGeometry*)gime->PHOSGeometry();
364
fad3e5b9 365 Int_t iDigit;
e5b16749 366
367// Calculates the center of gravity in the local PHOS-module coordinates
368 Float_t wtot = 0;
369 for(iDigit=0; iDigit<fMulDigit; iDigit++) {
370 digit = (AliPHOSDigit *) digits->At(fDigitsList[iDigit]) ;
371 Int_t relid[4] ;
372 Float_t xi ;
373 Float_t zi ;
374 phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
375 phosgeom->RelPosInModule(relid, xi, zi);
376 Float_t w = TMath::Max( 0., logWeight + TMath::Log( fEnergyList[iDigit] / fAmp ) ) ;
377 x += xi * w ;
378 z += zi * w ;
379 wtot += w ;
380 }
381 x /= wtot ;
382 z /= wtot ;
383
384
fad3e5b9 385 for(iDigit=0; iDigit < fMulDigit; iDigit++) {
7932f811 386 digit = (AliPHOSDigit *) ( digits->At(fDigitsList[iDigit]) ) ;
fad3e5b9 387 Int_t relid[4] ;
388 Float_t xi ;
389 Float_t zi ;
390 phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
391 phosgeom->RelPosInModule(relid, xi, zi);
392 Float_t distance = TMath::Sqrt((xi-x)*(xi-x)+(zi-z)*(zi-z)) ;
393 if(distance < coreRadius)
7932f811 394 fCoreEnergy += fEnergyList[iDigit] ;
fad3e5b9 395 }
396
fad3e5b9 397}
d15a28e7 398
399//____________________________________________________________________________
7932f811 400void AliPHOSEmcRecPoint::EvalElipsAxis(Float_t logWeight,TClonesArray * digits)
d15a28e7 401{
b2a60966 402 // Calculates the axis of the shower ellipsoid
83974468 403
e8dbb96e 404 Double_t wtot = 0. ;
405 Double_t x = 0.;
406 Double_t z = 0.;
407 Double_t dxx = 0.;
408 Double_t dzz = 0.;
409 Double_t dxz = 0.;
d15a28e7 410
411 AliPHOSDigit * digit ;
7b7c1533 412
413 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
414 AliPHOSGeometry * phosgeom = (AliPHOSGeometry*)gime->PHOSGeometry();
415
d15a28e7 416 Int_t iDigit;
417
e5b16749 418
d15a28e7 419 for(iDigit=0; iDigit<fMulDigit; iDigit++) {
7932f811 420 digit = (AliPHOSDigit *) digits->At(fDigitsList[iDigit]) ;
d15a28e7 421 Int_t relid[4] ;
422 Float_t xi ;
423 Float_t zi ;
92862013 424 phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
425 phosgeom->RelPosInModule(relid, xi, zi);
7932f811 426 Double_t w = TMath::Max(0.,logWeight+TMath::Log(fEnergyList[iDigit]/fAmp ) ) ;
92862013 427 dxx += w * xi * xi ;
d15a28e7 428 x += w * xi ;
92862013 429 dzz += w * zi * zi ;
d15a28e7 430 z += w * zi ;
92862013 431 dxz += w * xi * zi ;
d15a28e7 432 wtot += w ;
433 }
92862013 434 dxx /= wtot ;
d15a28e7 435 x /= wtot ;
92862013 436 dxx -= x * x ;
437 dzz /= wtot ;
d15a28e7 438 z /= wtot ;
92862013 439 dzz -= z * z ;
440 dxz /= wtot ;
441 dxz -= x * z ;
d15a28e7 442
69183710 443// //Apply correction due to non-perpendicular incidence
444// Double_t CosX ;
445// Double_t CosZ ;
7b7c1533 446// AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
447// AliPHOSGeometry * phosgeom = (AliPHOSGeometry*)gime->PHOSGeometry();
448 // Double_t DistanceToIP= (Double_t ) phosgeom->GetIPtoCrystalSurface() ;
69183710 449
450// CosX = DistanceToIP/TMath::Sqrt(DistanceToIP*DistanceToIP+x*x) ;
451// CosZ = DistanceToIP/TMath::Sqrt(DistanceToIP*DistanceToIP+z*z) ;
452
453// dxx = dxx/(CosX*CosX) ;
454// dzz = dzz/(CosZ*CosZ) ;
455// dxz = dxz/(CosX*CosZ) ;
456
457
7932f811 458 fLambda[0] = 0.5 * (dxx + dzz) + TMath::Sqrt( 0.25 * (dxx - dzz) * (dxx - dzz) + dxz * dxz ) ;
459 if(fLambda[0] > 0)
460 fLambda[0] = TMath::Sqrt(fLambda[0]) ;
e8dbb96e 461
7932f811 462 fLambda[1] = 0.5 * (dxx + dzz) - TMath::Sqrt( 0.25 * (dxx - dzz) * (dxx - dzz) + dxz * dxz ) ;
463 if(fLambda[1] > 0) //To avoid exception if numerical errors lead to negative lambda.
464 fLambda[1] = TMath::Sqrt(fLambda[1]) ;
e8dbb96e 465 else
7932f811 466 fLambda[1]= 0. ;
d15a28e7 467}
468
b2a60966 469//____________________________________________________________________________
7932f811 470void AliPHOSEmcRecPoint::EvalAll(Float_t logWeight, TClonesArray * digits )
ad8cfaf4 471{
baef0810 472 // Evaluates all shower parameters
473
7932f811 474 AliPHOSRecPoint::EvalAll(logWeight,digits) ;
475 EvalLocalPosition(logWeight, digits) ;
476 EvalElipsAxis(logWeight, digits) ;
477 EvalDispersion(logWeight, digits) ;
e5b16749 478 EvalCoreEnergy(logWeight, digits);
a6eedfad 479 EvalTime(digits) ;
ad8cfaf4 480}
481//____________________________________________________________________________
7932f811 482void AliPHOSEmcRecPoint::EvalLocalPosition(Float_t logWeight, TClonesArray * digits)
b2a60966 483{
484 // Calculates the center of gravity in the local PHOS-module coordinates
b2a60966 485 Float_t wtot = 0. ;
486
487 Int_t relid[4] ;
488
489 Float_t x = 0. ;
490 Float_t z = 0. ;
491
492 AliPHOSDigit * digit ;
493
7b7c1533 494 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
495 AliPHOSGeometry * phosgeom = (AliPHOSGeometry*)gime->PHOSGeometry();
b2a60966 496
497 Int_t iDigit;
498
b2a60966 499 for(iDigit=0; iDigit<fMulDigit; iDigit++) {
7932f811 500 digit = (AliPHOSDigit *) digits->At(fDigitsList[iDigit]) ;
b2a60966 501
502 Float_t xi ;
503 Float_t zi ;
504 phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
505 phosgeom->RelPosInModule(relid, xi, zi);
7932f811 506 Float_t w = TMath::Max( 0., logWeight + TMath::Log( fEnergyList[iDigit] / fAmp ) ) ;
b2a60966 507 x += xi * w ;
508 z += zi * w ;
509 wtot += w ;
b2a60966 510
9ce1a8d9 511 }
69183710 512
513 x /= wtot ;
514 z /= wtot ;
ad8cfaf4 515
516 // Correction for the depth of the shower starting point (TDR p 127)
517 Float_t para = 0.925 ;
518 Float_t parb = 6.52 ;
519
1b799736 520 Float_t xo,yo,zo ; //Coordinates of the origin
521 gAlice->Generator()->GetOrigin(xo,yo,zo) ;
522
5830e1d9 523 Float_t phi = phosgeom->GetPHOSAngle(relid[0]) ;
1b799736 524
525 //Transform to the local ref.frame
526 Float_t xoL,yoL ;
527 xoL = xo*TMath::Cos(phi)-yo*TMath::Sin(phi) ;
528 yoL = xo*TMath::Sin(phi)+yo*TMath::Cos(phi) ;
529
530 Float_t radius = TMath::Sqrt((xoL-x)*(xoL-x)+
5830e1d9 531 (phosgeom->GetIPtoCrystalSurface()-yoL)*(phosgeom->GetIPtoCrystalSurface()-yoL)+
532 (zo-z)*(zo-z));
1b799736 533
534 Float_t incidencephi = TMath::ATan((x-xoL ) / radius) ;
535 Float_t incidencetheta = TMath::ATan((z-zo) / radius) ;
ad8cfaf4 536
537 Float_t depthx = ( para * TMath::Log(fAmp) + parb ) * TMath::Sin(incidencephi) ;
538 Float_t depthz = ( para * TMath::Log(fAmp) + parb ) * TMath::Sin(incidencetheta) ;
539
540
541 fLocPos.SetX(x - depthx) ;
b2a60966 542 fLocPos.SetY(0.) ;
ad8cfaf4 543 fLocPos.SetZ(z - depthz) ;
b2a60966 544
a6eedfad 545 fLocPosM = 0 ;
b2a60966 546}
547
d15a28e7 548//____________________________________________________________________________
ad8cfaf4 549Float_t AliPHOSEmcRecPoint::GetMaximalEnergy(void) const
d15a28e7 550{
b2a60966 551 // Finds the maximum energy in the cluster
552
d15a28e7 553 Float_t menergy = 0. ;
554
555 Int_t iDigit;
556
557 for(iDigit=0; iDigit<fMulDigit; iDigit++) {
558
559 if(fEnergyList[iDigit] > menergy)
560 menergy = fEnergyList[iDigit] ;
561 }
562 return menergy ;
563}
564
565//____________________________________________________________________________
ad8cfaf4 566Int_t AliPHOSEmcRecPoint::GetMultiplicityAtLevel(const Float_t H) const
d15a28e7 567{
b2a60966 568 // Calculates the multiplicity of digits with energy larger than H*energy
569
d15a28e7 570 Int_t multipl = 0 ;
571 Int_t iDigit ;
572 for(iDigit=0; iDigit<fMulDigit; iDigit++) {
573
574 if(fEnergyList[iDigit] > H * fAmp)
575 multipl++ ;
576 }
577 return multipl ;
578}
579
580//____________________________________________________________________________
7932f811 581Int_t AliPHOSEmcRecPoint::GetNumberOfLocalMax(Int_t * maxAt, Float_t * maxAtEnergy,
582 Float_t locMaxCut,TClonesArray * digits) const
d15a28e7 583{
b2a60966 584 // Calculates the number of local maxima in the cluster using fLocalMaxCut as the minimum
a4e98857 585 // energy difference between two local maxima
b2a60966 586
d15a28e7 587 AliPHOSDigit * digit ;
588 AliPHOSDigit * digitN ;
589
590
591 Int_t iDigitN ;
592 Int_t iDigit ;
593
7932f811 594 for(iDigit = 0; iDigit < fMulDigit; iDigit++)
595 maxAt[iDigit] = (Int_t) digits->At(fDigitsList[iDigit]) ;
596
d15a28e7 597
6ad0bfa0 598 for(iDigit = 0 ; iDigit < fMulDigit; iDigit++) {
9f616d61 599 if(maxAt[iDigit] != -1) {
600 digit = (AliPHOSDigit *) maxAt[iDigit] ;
83974468 601
6ad0bfa0 602 for(iDigitN = 0; iDigitN < fMulDigit; iDigitN++) {
7932f811 603 digitN = (AliPHOSDigit *) digits->At(fDigitsList[iDigitN]) ;
d15a28e7 604
9f616d61 605 if ( AreNeighbours(digit, digitN) ) {
d15a28e7 606 if (fEnergyList[iDigit] > fEnergyList[iDigitN] ) {
607 maxAt[iDigitN] = -1 ;
6ad0bfa0 608 // but may be digit too is not local max ?
7932f811 609 if(fEnergyList[iDigit] < fEnergyList[iDigitN] + locMaxCut)
d15a28e7 610 maxAt[iDigit] = -1 ;
611 }
612 else {
613 maxAt[iDigit] = -1 ;
6ad0bfa0 614 // but may be digitN too is not local max ?
7932f811 615 if(fEnergyList[iDigit] > fEnergyList[iDigitN] - locMaxCut)
d15a28e7 616 maxAt[iDigitN] = -1 ;
617 }
618 } // if Areneighbours
619 } // while digitN
620 } // slot not empty
621 } // while digit
622
623 iDigitN = 0 ;
6ad0bfa0 624 for(iDigit = 0; iDigit < fMulDigit; iDigit++) {
d15a28e7 625 if(maxAt[iDigit] != -1){
626 maxAt[iDigitN] = maxAt[iDigit] ;
9f616d61 627 maxAtEnergy[iDigitN] = fEnergyList[iDigit] ;
628 iDigitN++ ;
d15a28e7 629 }
630 }
631 return iDigitN ;
632}
9688c1dd 633//____________________________________________________________________________
634void AliPHOSEmcRecPoint::EvalTime(TClonesArray * digits){
635
636 Float_t maxE = 0;
637 Int_t maxAt = 0;
638 for(Int_t idig=0; idig < fMulDigit; idig++){
639 if(fEnergyList[idig] > maxE){
640 maxE = fEnergyList[idig] ;
641 maxAt = idig;
642 }
643 }
644 fTime = ((AliPHOSDigit*) digits->At(fDigitsList[maxAt]))->GetTime() ;
645
646}
d15a28e7 647//____________________________________________________________________________
648void AliPHOSEmcRecPoint::Print(Option_t * option)
649{
b2a60966 650 // Print the list of digits belonging to the cluster
651
d15a28e7 652 cout << "AliPHOSEmcRecPoint: " << endl ;
653
d15a28e7 654 Int_t iDigit;
7932f811 655 cout << " digits # = " ;
656 for(iDigit=0; iDigit<fMulDigit; iDigit++)
657 cout << fDigitsList[iDigit] << " " ;
658 cout << endl ;
659
660 cout << " Energies = " ;
661 for(iDigit=0; iDigit<fMulDigit; iDigit++)
662 cout << fEnergyList[iDigit] << " ";
663 cout << endl ;
83974468 664
bc68d12c 665 cout << " Primaries " ;
666 for(iDigit = 0;iDigit < fMulTrack; iDigit++)
667 cout << fTracksList[iDigit] << " " << endl ;
668
d15a28e7 669 cout << " Multiplicity = " << fMulDigit << endl ;
670 cout << " Cluster Energy = " << fAmp << endl ;
bc68d12c 671 cout << " Number of primaries " << fMulTrack << endl ;
83974468 672 cout << " Stored at position " << GetIndexInList() << endl ;
673
d15a28e7 674}
88714635 675
7932f811 676