Syntax fixes for the xlc compiler on MacOSX
[u/mrichter/AliRoot.git] / EMCAL / AliEMCALRecPoint.cxx
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ab48128d 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/* $Id$ */
16//_________________________________________________________________________
70a93198 17// Reconstructed Points for the EMCAL
18// A RecPoint is a cluster of digits
d64c959b 19//*-- Author: Yves Schutz (SUBATECH)
70a93198 20//*-- Author: Dmitri Peressounko (RRC KI & SUBATECH)
21//*-- Author: Heather Gray (LBL) merged AliEMCALRecPoint and AliEMCALTowerRecPoint 02/04
ab48128d 22
23// --- ROOT system ---
24#include "TPad.h"
d64c959b 25#include "TGraph.h"
26#include "TPaveText.h"
ab48128d 27#include "TClonesArray.h"
70a93198 28#include "TMath.h"
ab48128d 29
30// --- Standard library ---
ab48128d 31
32// --- AliRoot header files ---
70a93198 33#include "AliGenerator.h"
ab48128d 34#include "AliEMCALGeometry.h"
35#include "AliEMCALDigit.h"
36#include "AliEMCALRecPoint.h"
37#include "AliEMCALGetter.h"
38
39ClassImp(AliEMCALRecPoint)
40
41
42//____________________________________________________________________________
43AliEMCALRecPoint::AliEMCALRecPoint()
44 : AliRecPoint()
45{
46 // ctor
692088ae 47 fMaxTrack = 0 ;
70a93198 48 fMulDigit = 0 ;
49 fAmp = 0. ;
50 fCoreEnergy = 0 ;
51 fEnergyList = 0 ;
52 fTime = 0. ;
53 fLocPos.SetX(0.) ; //Local position should be evaluated
54 fCoreRadius = 10; //HG Check this
ab48128d 55}
56
57//____________________________________________________________________________
58AliEMCALRecPoint::AliEMCALRecPoint(const char * opt) : AliRecPoint(opt)
59{
60 // ctor
ab48128d 61 fMaxTrack = 200 ;
70a93198 62 fMulDigit = 0 ;
63 fAmp = 0. ;
64 fCoreEnergy = 0 ;
65 fEnergyList = 0 ;
66 fTime = -1. ;
67 fLocPos.SetX(1000000.) ; //Local position should be evaluated
68 fCoreRadius = 10; //HG Check this
69}
70//____________________________________________________________________________
71AliEMCALRecPoint::~AliEMCALRecPoint()
72{
73 // dtor
74 if ( fEnergyList )
75 delete[] fEnergyList ;
76}
77
78//____________________________________________________________________________
79void AliEMCALRecPoint::AddDigit(AliEMCALDigit & digit, Float_t Energy)
80{
81 // Adds a digit to the RecPoint
82 // and accumulates the total amplitude and the multiplicity
83
84 if(fEnergyList == 0)
85 fEnergyList = new Float_t[fMaxDigit];
86
87 if ( fMulDigit >= fMaxDigit ) { // increase the size of the lists
88 fMaxDigit*=2 ;
89 Int_t * tempo = new ( Int_t[fMaxDigit] ) ;
90 Float_t * tempoE = new ( Float_t[fMaxDigit] ) ;
91
92 Int_t index ;
93 for ( index = 0 ; index < fMulDigit ; index++ ){
94 tempo[index] = fDigitsList[index] ;
95 tempoE[index] = fEnergyList[index] ;
96 }
97
98 delete [] fDigitsList ;
99 fDigitsList = new ( Int_t[fMaxDigit] ) ;
100
101 delete [] fEnergyList ;
102 fEnergyList = new ( Float_t[fMaxDigit] ) ;
103
104 for ( index = 0 ; index < fMulDigit ; index++ ){
105 fDigitsList[index] = tempo[index] ;
106 fEnergyList[index] = tempoE[index] ;
107 }
108
109 delete [] tempo ;
110 delete [] tempoE ;
111 } // if
112
113 fDigitsList[fMulDigit] = digit.GetIndexInList() ;
114 fEnergyList[fMulDigit] = Energy ;
115 fMulDigit++ ;
116 fAmp += Energy ;
117
118}
119//____________________________________________________________________________
120Bool_t AliEMCALRecPoint::AreNeighbours(AliEMCALDigit * digit1, AliEMCALDigit * digit2 ) const
121{
122 // Tells if (true) or not (false) two digits are neighbours
123 // A neighbour is defined as being two digits which share a corner
124
125 Bool_t areNeighbours = kFALSE ;
126
127 AliEMCALGeometry * geom = (AliEMCALGetter::Instance())->EMCALGeometry();
128
129 Int_t relid1[2] ;
130 geom->AbsToRelNumbering(digit1->GetId(), relid1) ;
131
132 Int_t relid2[2] ;
133 geom->AbsToRelNumbering(digit2->GetId(), relid2) ;
134
135 Int_t rowdiff = TMath::Abs( relid1[0] - relid2[0] ) ;
136 Int_t coldiff = TMath::Abs( relid1[1] - relid2[1] ) ;
137
138 if (( coldiff <= 1 ) && ( rowdiff <= 1 ) && (coldiff + rowdiff > 0))
139 areNeighbours = kTRUE ;
ab48128d 140
70a93198 141 return areNeighbours;
142}
143
144//____________________________________________________________________________
145Int_t AliEMCALRecPoint::Compare(const TObject * obj) const
146{
147 // Compares two RecPoints according to their position in the EMCAL modules
148
149 Float_t delta = 1 ; //Width of "Sorting row". If you change this
150 //value (what is senseless) change as well delta in
151 //AliEMCALTrackSegmentMakerv* and other RecPoints...
152 Int_t rv ;
153
154 AliEMCALRecPoint * clu = (AliEMCALRecPoint *)obj ;
155
156 TVector3 locpos1;
157 GetLocalPosition(locpos1);
158 TVector3 locpos2;
159 clu->GetLocalPosition(locpos2);
160
161 Int_t rowdif = (Int_t)TMath::Ceil(locpos1.X()/delta)-(Int_t)TMath::Ceil(locpos2.X()/delta) ;
162 if (rowdif> 0)
163 rv = 1 ;
164 else if(rowdif < 0)
165 rv = -1 ;
166 else if(locpos1.Y()>locpos2.Y())
167 rv = -1 ;
168 else
169 rv = 1 ;
170
171 return rv ;
ab48128d 172}
173
174//____________________________________________________________________________
175Int_t AliEMCALRecPoint::DistancetoPrimitive(Int_t px, Int_t py)
176{
177 // Compute distance from point px,py to a AliEMCALRecPoint considered as a Tmarker
178 // Compute the closest distance of approach from point px,py to this marker.
179 // The distance is computed in pixels units.
70a93198 180 // HG Still need to update -> Not sure what this should achieve
ab48128d 181
182 TVector3 pos(0.,0.,0.) ;
70a93198 183 GetLocalPosition(pos) ;
ab48128d 184 Float_t x = pos.X() ;
70a93198 185 Float_t y = pos.Y() ;
ab48128d 186 const Int_t kMaxDiff = 10;
187 Int_t pxm = gPad->XtoAbsPixel(x);
188 Int_t pym = gPad->YtoAbsPixel(y);
189 Int_t dist = (px-pxm)*(px-pxm) + (py-pym)*(py-pym);
190
191 if (dist > kMaxDiff) return 9999;
192 return dist;
193}
194
195//___________________________________________________________________________
196 void AliEMCALRecPoint::Draw(Option_t *option)
197 {
198 // Draw this AliEMCALRecPoint with its current attributes
199
200 AppendPad(option);
201 }
202
203//______________________________________________________________________________
70a93198 204void AliEMCALRecPoint::ExecuteEvent(Int_t /*event*/, Int_t, Int_t)
ab48128d 205{
206 // Execute action corresponding to one event
207 // This member function is called when a AliEMCALRecPoint is clicked with the locator
208 //
209 // If Left button is clicked on AliEMCALRecPoint, the digits are switched on
210 // and switched off when the mouse button is released.
211
212 // static Int_t pxold, pyold;
213
70a93198 214 /* static TGraph * digitgraph = 0 ;
ab48128d 215 static TPaveText* clustertext = 0 ;
216
217 if (!gPad->IsEditable()) return;
218
219 switch (event) {
220
221
222 case kButton1Down:{
223 AliEMCALDigit * digit ;
88cb7938 224 AliEMCALGeometry * emcalgeom = (AliEMCALGetter::Instance())->EMCALGeometry() ;
ab48128d 225
226 Int_t iDigit;
70a93198 227 Int_t relid[2] ;
ab48128d 228
229 const Int_t kMulDigit=AliEMCALRecPoint::GetDigitsMultiplicity() ;
230 Float_t * xi = new Float_t [kMulDigit] ;
231 Float_t * zi = new Float_t [kMulDigit] ;
232
233 for(iDigit = 0; iDigit < kMulDigit; iDigit++) {
234 Fatal("AliEMCALRecPoint::ExecuteEvent", " -> Something wrong with the code");
235 digit = 0 ; //dynamic_cast<AliEMCALDigit *>((fDigitsList)[iDigit]);
236 emcalgeom->AbsToRelNumbering(digit->GetId(), relid) ;
237 emcalgeom->PosInAlice(relid, xi[iDigit], zi[iDigit]) ;
238 }
239
240 if (!digitgraph) {
241 digitgraph = new TGraph(fMulDigit,xi,zi);
242 digitgraph-> SetMarkerStyle(5) ;
243 digitgraph-> SetMarkerSize(1.) ;
244 digitgraph-> SetMarkerColor(1) ;
245 digitgraph-> Draw("P") ;
246 }
247 if (!clustertext) {
248
249 TVector3 pos(0.,0.,0.) ;
250 GetLocalPosition(pos) ;
251 clustertext = new TPaveText(pos.X()-10,pos.Z()+10,pos.X()+50,pos.Z()+35,"") ;
252 Text_t line1[40] ;
253 Text_t line2[40] ;
254 sprintf(line1,"Energy=%1.2f GeV",GetEnergy()) ;
255 sprintf(line2,"%d Digits",GetDigitsMultiplicity()) ;
256 clustertext ->AddText(line1) ;
257 clustertext ->AddText(line2) ;
258 clustertext ->Draw("");
259 }
260 gPad->Update() ;
9e5d2067 261 Print("") ;
ab48128d 262 delete[] xi ;
263 delete[] zi ;
264 }
265
266break;
267
268 case kButton1Up:
269 if (digitgraph) {
270 delete digitgraph ;
271 digitgraph = 0 ;
272 }
273 if (clustertext) {
274 delete clustertext ;
275 clustertext = 0 ;
276 }
277
278 break;
279
70a93198 280 }*/
281}
282//____________________________________________________________________________
283void AliEMCALRecPoint::EvalAll(Float_t logWeight,TClonesArray * digits)
284{
285 // Evaluates all shower parameters
286
287 EvalLocalPosition(logWeight, digits) ;
288 EvalElipsAxis(logWeight, digits) ;
289 EvalDispersion(logWeight, digits) ;
290 EvalCoreEnergy(logWeight, digits);
291 EvalTime(digits) ;
292
293 //EvalPrimaries(digits) ;
294}
295
296//____________________________________________________________________________
297void AliEMCALRecPoint::EvalDispersion(Float_t logWeight, TClonesArray * digits)
298{
299 // Calculates the dispersion of the shower at the origin of the RecPoint
300
301 Float_t d = 0. ;
302 Float_t wtot = 0. ;
303
304 AliEMCALDigit * digit ;
305
306 AliEMCALGeometry * geom = (AliEMCALGetter::Instance())->EMCALGeometry();
307
308 // Calculates the centre of gravity in the local EMCAL-module coordinates
309 Int_t iDigit;
310
311 if (!fLocPos.X() || !fLocPos.Y())
312 EvalLocalPosition(logWeight, digits) ;
313
314 const Float_t kDeg2Rad = TMath::DegToRad() ;
315
316 Float_t cluEta = fLocPos.X() ;
317 Float_t cluPhi = fLocPos.Y() ;
318 Float_t cluR = fLocPos.Z() ;
319
320 if (gDebug == 2)
321 printf("EvalDispersion: eta,phi,r = %f,%f,%f", cluEta, cluPhi, cluR) ;
322
323 // Calculates the dispersion in coordinates
324 wtot = 0.;
325 for(iDigit=0; iDigit < fMulDigit; iDigit++) {
326 digit = (AliEMCALDigit *) digits->At(fDigitsList[iDigit]) ;
327 Float_t etai = 0.;
328 Float_t phii = 0.;
329 geom->EtaPhiFromIndex(digit->GetId(), etai, phii);
330 phii = phii * kDeg2Rad;
331 if (gDebug == 2)
332 printf("EvalDispersion: id = %d, etai,phii = %f,%f", digit->GetId(), etai, phii) ;
333
334 Float_t w = TMath::Max(0.,logWeight+TMath::Log(fEnergyList[iDigit]/fAmp ) ) ;
335 d += w * ( (etai-cluEta)*(etai-cluEta) + (phii-cluPhi)*(phii-cluPhi) ) ;
336 wtot+=w ;
ab48128d 337 }
70a93198 338
339 if ( wtot > 0 )
340 d /= wtot ;
341 else
342 d = 0. ;
343
344 fDispersion = TMath::Sqrt(d) ;
345
ab48128d 346}
70a93198 347
ab48128d 348//____________________________________________________________________________
70a93198 349void AliEMCALRecPoint::EvalLocalPosition(Float_t logWeight, TClonesArray * digits)
88cb7938 350{
70a93198 351 // Calculates the center of gravity in the local EMCAL-module coordinates
352 Float_t wtot = 0. ;
353
354 // Int_t relid[3] ;
355
356 AliEMCALDigit * digit ;
357 AliEMCALGeometry * geom = (AliEMCALGetter::Instance())->EMCALGeometry();
358 Int_t iDigit;
359 Float_t cluEta = 0;
360 Float_t cluPhi = 0;
361 const Float_t kDeg2Rad = TMath::DegToRad();
362
363 for(iDigit=0; iDigit<fMulDigit; iDigit++) {
364 digit = dynamic_cast<AliEMCALDigit *>(digits->At(fDigitsList[iDigit])) ;
365
366 Float_t etai ;
367 Float_t phii ;
368 geom->EtaPhiFromIndex(digit->GetId(), etai, phii);
369 phii = phii * kDeg2Rad;
370 Float_t w = TMath::Max( 0., logWeight + TMath::Log( fEnergyList[iDigit] / fAmp ) ) ;
371 cluEta += (etai * w) ;
372 cluPhi += (phii * w );
373 wtot += w ;
374 }
ab48128d 375
70a93198 376 if ( wtot > 0 ) {
377 cluEta /= wtot ;
378 cluPhi /= wtot ;
379 } else {
380 cluEta = -1 ;
381 cluPhi = -1.;
382 }
383
384 fLocPos.SetX(cluEta);
385 fLocPos.SetY(cluPhi);
386 fLocPos.SetZ(geom->GetIP2ECASection());
387
388 if (gDebug==2)
389 printf("EvalLocalPosition: eta,phi,r = %f,%f,%f", fLocPos.X(), fLocPos.Y(), fLocPos.Z()) ;
390 fLocPosM = 0 ;
ab48128d 391}
392
70a93198 393//______________________________________________________________________________
394void AliEMCALRecPoint::EvalCoreEnergy(Float_t logWeight, TClonesArray * digits)
395{
396 // This function calculates energy in the core,
397 // i.e. within a radius rad = 3cm around the center. Beyond this radius
398 // in accordance with shower profile the energy deposition
399 // should be less than 2%
400
401 AliEMCALDigit * digit ;
402 const Float_t kDeg2Rad = TMath::DegToRad() ;
403 AliEMCALGeometry * geom = (AliEMCALGetter::Instance())->EMCALGeometry();
404 Int_t iDigit;
405
406 if (!fLocPos.X() || !fLocPos.Y() ) {
407 EvalLocalPosition(logWeight, digits);
408 }
409
410 for(iDigit=0; iDigit < fMulDigit; iDigit++) {
411 digit = (AliEMCALDigit *) ( digits->At(fDigitsList[iDigit]) ) ;
412 Float_t etai = 0. ;
413 Float_t phii = 0. ;
414 geom->PosInAlice(digit->GetId(), etai, phii);
415 phii = phii * kDeg2Rad;
416
417 Float_t distance = TMath::Sqrt((etai-fLocPos.X())*(etai-fLocPos.X())+(phii-fLocPos.Y())*(phii-fLocPos.Y())) ;
418 if(distance < fCoreRadius)
419 fCoreEnergy += fEnergyList[iDigit] ;
420 }
421
422}
ab48128d 423//____________________________________________________________________________
70a93198 424void AliEMCALRecPoint::EvalElipsAxis(Float_t logWeight,TClonesArray * digits)
ab48128d 425{
70a93198 426 // Calculates the axis of the shower ellipsoid in eta and phi
ab48128d 427
70a93198 428 Double_t wtot = 0. ;
429 Double_t x = 0.;
430 Double_t z = 0.;
431 Double_t dxx = 0.;
432 Double_t dzz = 0.;
433 Double_t dxz = 0.;
ab48128d 434
70a93198 435 AliEMCALDigit * digit ;
436
437 AliEMCALGeometry * geom = (AliEMCALGetter::Instance())->EMCALGeometry();
438
439 Int_t iDigit;
ab48128d 440
70a93198 441 for(iDigit=0; iDigit<fMulDigit; iDigit++) {
442 digit = (AliEMCALDigit *) digits->At(fDigitsList[iDigit]) ;
443 Float_t etai = 0. ;
444 Float_t phii = 0. ;
445 geom->EtaPhiFromIndex(digit->GetId(), etai, phii);
446 Double_t w = TMath::Max(0.,logWeight+TMath::Log(fEnergyList[iDigit]/fAmp ) ) ;
447 dxx += w * etai * etai ;
448 x += w * etai ;
449 dzz += w * phii * phii ;
450 z += w * phii ;
451 dxz += w * etai * etai ;
452 wtot += w ;
453 }
454 if ( wtot > 0 ) {
455 dxx /= wtot ;
456 x /= wtot ;
457 dxx -= x * x ;
458 dzz /= wtot ;
459 z /= wtot ;
460 dzz -= z * z ;
461 dxz /= wtot ;
462 dxz -= x * z ;
ab48128d 463
70a93198 464 fLambda[0] = 0.5 * (dxx + dzz) + TMath::Sqrt( 0.25 * (dxx - dzz) * (dxx - dzz) + dxz * dxz ) ;
465 if(fLambda[0] > 0)
466 fLambda[0] = TMath::Sqrt(fLambda[0]) ;
467 else
468 fLambda[0] = 0;
469
470 fLambda[1] = 0.5 * (dxx + dzz) - TMath::Sqrt( 0.25 * (dxx - dzz) * (dxx - dzz) + dxz * dxz ) ;
471 if(fLambda[1] > 0) //To avoid exception if numerical errors lead to negative lambda.
472 fLambda[1] = TMath::Sqrt(fLambda[1]) ;
473 else
474 fLambda[1]= 0. ;
475 } else {
476 fLambda[0]= 0. ;
477 fLambda[1]= 0. ;
ab48128d 478 }
479}
480
481//______________________________________________________________________________
482void AliEMCALRecPoint::EvalPrimaries(TClonesArray * digits)
483{
484 // Constructs the list of primary particles (tracks) which have contributed to this RecPoint
485
486 AliEMCALDigit * digit ;
487 Int_t * tempo = new Int_t[fMaxTrack] ;
488
489 Int_t index ;
490 for ( index = 0 ; index < GetDigitsMultiplicity() ; index++ ) { // all digits
491 digit = dynamic_cast<AliEMCALDigit *>(digits->At( fDigitsList[index] )) ;
492 Int_t nprimaries = digit->GetNprimary() ;
493 Int_t * newprimaryarray = new Int_t[nprimaries] ;
494 Int_t ii ;
495 for ( ii = 0 ; ii < nprimaries ; ii++)
496 newprimaryarray[ii] = digit->GetPrimary(ii+1) ;
497
498 Int_t jndex ;
499 for ( jndex = 0 ; jndex < nprimaries ; jndex++ ) { // all primaries in digit
500 if ( fMulTrack > fMaxTrack ) {
501 fMulTrack = - 1 ;
9859bfc0 502 Error("GetNprimaries", "increase fMaxTrack ") ;
ab48128d 503 break ;
504 }
505 Int_t newprimary = newprimaryarray[jndex] ;
506 Int_t kndex ;
507 Bool_t already = kFALSE ;
508 for ( kndex = 0 ; kndex < fMulTrack ; kndex++ ) { //check if not already stored
509 if ( newprimary == tempo[kndex] ){
510 already = kTRUE ;
511 break ;
512 }
513 } // end of check
514 if ( !already) { // store it
515 tempo[fMulTrack] = newprimary ;
516 fMulTrack++ ;
517 } // store it
518 } // all primaries in digit
519 delete newprimaryarray ;
520 } // all digits
521
522
523 fTracksList = new Int_t[fMulTrack] ;
524 for(index = 0; index < fMulTrack; index++)
525 fTracksList[index] = tempo[index] ;
526
527 delete tempo ;
528
529}
7ee5c5be 530
ab48128d 531//____________________________________________________________________________
70a93198 532void AliEMCALRecPoint::GetLocalPosition(TVector3 & lpos) const
533{
534 // returns the position of the cluster in the local reference system of ALICE
535 // X = eta, Y = phi, Z = r (a constant for the EMCAL)
536
537 lpos.SetX(fLocPos.X()) ;
538 lpos.SetY(fLocPos.Y()) ;
539 lpos.SetZ(fLocPos.Z()) ;
540}
541
542//____________________________________________________________________________
ab48128d 543void AliEMCALRecPoint::GetGlobalPosition(TVector3 & gpos) const
544{
545 // returns the position of the cluster in the global reference system of ALICE
70a93198 546 // These are now the Cartesian X, Y and Z
547
548 AliEMCALGeometry * geom = (AliEMCALGetter::Instance())->EMCALGeometry();
549 Int_t absid = geom->TowerIndexFromEtaPhi(fLocPos.X(), TMath::RadToDeg()*fLocPos.Y());
550 geom->XYZFromIndex(absid, gpos);
551}
552
553//____________________________________________________________________________
554Float_t AliEMCALRecPoint::GetMaximalEnergy(void) const
555{
556 // Finds the maximum energy in the cluster
ab48128d 557
70a93198 558 Float_t menergy = 0. ;
559
560 Int_t iDigit;
561
562 for(iDigit=0; iDigit<fMulDigit; iDigit++) {
563
564 if(fEnergyList[iDigit] > menergy)
565 menergy = fEnergyList[iDigit] ;
566 }
567 return menergy ;
ab48128d 568}
569
aad8e277 570//____________________________________________________________________________
70a93198 571Int_t AliEMCALRecPoint::GetMultiplicityAtLevel(Float_t H) const
aad8e277 572{
70a93198 573 // Calculates the multiplicity of digits with energy larger than H*energy
574
575 Int_t multipl = 0 ;
576 Int_t iDigit ;
577 for(iDigit=0; iDigit<fMulDigit; iDigit++) {
578
579 if(fEnergyList[iDigit] > H * fAmp)
580 multipl++ ;
581 }
582 return multipl ;
583}
584
585//____________________________________________________________________________
586Int_t AliEMCALRecPoint::GetNumberOfLocalMax(AliEMCALDigit ** maxAt, Float_t * maxAtEnergy,
587 Float_t locMaxCut,TClonesArray * digits) const
588{
589 // Calculates the number of local maxima in the cluster using fLocalMaxCut as the minimum
590 // energy difference between two local maxima
591
592 AliEMCALDigit * digit ;
593 AliEMCALDigit * digitN ;
594
595 Int_t iDigitN ;
596 Int_t iDigit ;
597
598 for(iDigit = 0; iDigit < fMulDigit; iDigit++)
599 maxAt[iDigit] = (AliEMCALDigit*) digits->At(fDigitsList[iDigit]) ;
600
601 for(iDigit = 0 ; iDigit < fMulDigit; iDigit++) {
602 if(maxAt[iDigit]) {
603 digit = maxAt[iDigit] ;
604
605 for(iDigitN = 0; iDigitN < fMulDigit; iDigitN++) {
606 digitN = (AliEMCALDigit *) digits->At(fDigitsList[iDigitN]) ;
607
608 if ( AreNeighbours(digit, digitN) ) {
609 if (fEnergyList[iDigit] > fEnergyList[iDigitN] ) {
610 maxAt[iDigitN] = 0 ;
611 // but may be digit too is not local max ?
612 if(fEnergyList[iDigit] < fEnergyList[iDigitN] + locMaxCut)
613 maxAt[iDigit] = 0 ;
614 }
615 else {
616 maxAt[iDigit] = 0 ;
617 // but may be digitN too is not local max ?
618 if(fEnergyList[iDigit] > fEnergyList[iDigitN] - locMaxCut)
619 maxAt[iDigitN] = 0 ;
620 }
621 } // if Areneighbours
622 } // while digitN
623 } // slot not empty
624 } // while digit
625
626 iDigitN = 0 ;
627 for(iDigit = 0; iDigit < fMulDigit; iDigit++) {
628 if(maxAt[iDigit] ){
629 maxAt[iDigitN] = maxAt[iDigit] ;
630 maxAtEnergy[iDigitN] = fEnergyList[iDigit] ;
631 iDigitN++ ;
632 }
633 }
634 return iDigitN ;
635}
636//____________________________________________________________________________
637void AliEMCALRecPoint::EvalTime(TClonesArray * digits){
638 // time is set to the time of the digit with the maximum energy
639
640 Float_t maxE = 0;
641 Int_t maxAt = 0;
642 for(Int_t idig=0; idig < fMulDigit; idig++){
643 if(fEnergyList[idig] > maxE){
644 maxE = fEnergyList[idig] ;
645 maxAt = idig;
646 }
647 }
648 fTime = ((AliEMCALDigit*) digits->At(fDigitsList[maxAt]))->GetTime() ;
aad8e277 649
aad8e277 650}
ab48128d 651
652//______________________________________________________________________________
653void AliEMCALRecPoint::Paint(Option_t *)
654{
655 // Paint this ALiRecPoint as a TMarker with its current attributes
656
657 TVector3 pos(0.,0.,0.) ;
658 GetLocalPosition(pos) ;
659 Coord_t x = pos.X() ;
660 Coord_t y = pos.Z() ;
661 Color_t markercolor = 1 ;
662 Size_t markersize = 1. ;
663 Style_t markerstyle = 5 ;
664
665 if (!gPad->IsBatch()) {
666 gVirtualX->SetMarkerColor(markercolor) ;
667 gVirtualX->SetMarkerSize (markersize) ;
668 gVirtualX->SetMarkerStyle(markerstyle) ;
669 }
670 gPad->SetAttMarkerPS(markercolor,markerstyle,markersize) ;
671 gPad->PaintPolyMarker(1,&x,&y,"") ;
672}
70a93198 673
674//______________________________________________________________________________
675Float_t AliEMCALRecPoint::EtaToTheta(Float_t arg) const
676{
677 //Converts Theta (Radians) to Eta(Radians)
678 return (2.*TMath::ATan(TMath::Exp(-arg)));
679}
680
681//______________________________________________________________________________
682Float_t AliEMCALRecPoint::ThetaToEta(Float_t arg) const
683{
684 //Converts Eta (Radians) to Theta(Radians)
685 return (-1 * TMath::Log(TMath::Tan(0.5 * arg)));
686}