The raw reader has to be reset before the processing (C.Cheshkov)
[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"
ff1e7e2f 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 ;
87cdc3be 49 fMaxParent = 0;
50 fMulParent = 0;
70a93198 51 fAmp = 0. ;
52 fCoreEnergy = 0 ;
53 fEnergyList = 0 ;
87cdc3be 54 fParentsList = 0;
70a93198 55 fTime = 0. ;
56 fLocPos.SetX(0.) ; //Local position should be evaluated
57 fCoreRadius = 10; //HG Check this
ab48128d 58}
59
60//____________________________________________________________________________
61AliEMCALRecPoint::AliEMCALRecPoint(const char * opt) : AliRecPoint(opt)
62{
63 // ctor
ff1e7e2f 64 fMaxTrack = 1000 ;
65 fMaxParent = 1000;
87cdc3be 66 fMulDigit = 0 ;
67 fMulParent = 0;
70a93198 68 fAmp = 0. ;
69 fCoreEnergy = 0 ;
70 fEnergyList = 0 ;
87cdc3be 71 fParentsList = new Int_t[fMaxParent];
70a93198 72 fTime = -1. ;
73 fLocPos.SetX(1000000.) ; //Local position should be evaluated
74 fCoreRadius = 10; //HG Check this
75}
76//____________________________________________________________________________
77AliEMCALRecPoint::~AliEMCALRecPoint()
78{
79 // dtor
80 if ( fEnergyList )
81 delete[] fEnergyList ;
87cdc3be 82 if ( fParentsList)
83 delete[] fParentsList;
70a93198 84}
85
86//____________________________________________________________________________
87void AliEMCALRecPoint::AddDigit(AliEMCALDigit & digit, Float_t Energy)
88{
89 // Adds a digit to the RecPoint
90 // and accumulates the total amplitude and the multiplicity
91
92 if(fEnergyList == 0)
93 fEnergyList = new Float_t[fMaxDigit];
94
95 if ( fMulDigit >= fMaxDigit ) { // increase the size of the lists
96 fMaxDigit*=2 ;
a64a06d6 97 Int_t * tempo = new Int_t[fMaxDigit];
98 Float_t * tempoE = new Float_t[fMaxDigit];
70a93198 99
100 Int_t index ;
101 for ( index = 0 ; index < fMulDigit ; index++ ){
102 tempo[index] = fDigitsList[index] ;
103 tempoE[index] = fEnergyList[index] ;
104 }
105
106 delete [] fDigitsList ;
a64a06d6 107 fDigitsList = new Int_t[fMaxDigit];
70a93198 108
109 delete [] fEnergyList ;
a64a06d6 110 fEnergyList = new Float_t[fMaxDigit];
70a93198 111
112 for ( index = 0 ; index < fMulDigit ; index++ ){
113 fDigitsList[index] = tempo[index] ;
114 fEnergyList[index] = tempoE[index] ;
115 }
116
117 delete [] tempo ;
118 delete [] tempoE ;
119 } // if
120
121 fDigitsList[fMulDigit] = digit.GetIndexInList() ;
122 fEnergyList[fMulDigit] = Energy ;
123 fMulDigit++ ;
124 fAmp += Energy ;
125
126}
127//____________________________________________________________________________
128Bool_t AliEMCALRecPoint::AreNeighbours(AliEMCALDigit * digit1, AliEMCALDigit * digit2 ) const
129{
130 // Tells if (true) or not (false) two digits are neighbours
131 // A neighbour is defined as being two digits which share a corner
132
133 Bool_t areNeighbours = kFALSE ;
134
135 AliEMCALGeometry * geom = (AliEMCALGetter::Instance())->EMCALGeometry();
136
137 Int_t relid1[2] ;
138 geom->AbsToRelNumbering(digit1->GetId(), relid1) ;
139
140 Int_t relid2[2] ;
141 geom->AbsToRelNumbering(digit2->GetId(), relid2) ;
142
143 Int_t rowdiff = TMath::Abs( relid1[0] - relid2[0] ) ;
144 Int_t coldiff = TMath::Abs( relid1[1] - relid2[1] ) ;
145
146 if (( coldiff <= 1 ) && ( rowdiff <= 1 ) && (coldiff + rowdiff > 0))
147 areNeighbours = kTRUE ;
ab48128d 148
70a93198 149 return areNeighbours;
150}
151
152//____________________________________________________________________________
153Int_t AliEMCALRecPoint::Compare(const TObject * obj) const
154{
155 // Compares two RecPoints according to their position in the EMCAL modules
156
157 Float_t delta = 1 ; //Width of "Sorting row". If you change this
158 //value (what is senseless) change as well delta in
159 //AliEMCALTrackSegmentMakerv* and other RecPoints...
160 Int_t rv ;
161
162 AliEMCALRecPoint * clu = (AliEMCALRecPoint *)obj ;
163
164 TVector3 locpos1;
165 GetLocalPosition(locpos1);
166 TVector3 locpos2;
167 clu->GetLocalPosition(locpos2);
168
169 Int_t rowdif = (Int_t)TMath::Ceil(locpos1.X()/delta)-(Int_t)TMath::Ceil(locpos2.X()/delta) ;
170 if (rowdif> 0)
171 rv = 1 ;
172 else if(rowdif < 0)
173 rv = -1 ;
174 else if(locpos1.Y()>locpos2.Y())
175 rv = -1 ;
176 else
177 rv = 1 ;
178
179 return rv ;
ab48128d 180}
181
182//____________________________________________________________________________
183Int_t AliEMCALRecPoint::DistancetoPrimitive(Int_t px, Int_t py)
184{
185 // Compute distance from point px,py to a AliEMCALRecPoint considered as a Tmarker
186 // Compute the closest distance of approach from point px,py to this marker.
187 // The distance is computed in pixels units.
70a93198 188 // HG Still need to update -> Not sure what this should achieve
ab48128d 189
190 TVector3 pos(0.,0.,0.) ;
70a93198 191 GetLocalPosition(pos) ;
ab48128d 192 Float_t x = pos.X() ;
70a93198 193 Float_t y = pos.Y() ;
ab48128d 194 const Int_t kMaxDiff = 10;
195 Int_t pxm = gPad->XtoAbsPixel(x);
196 Int_t pym = gPad->YtoAbsPixel(y);
197 Int_t dist = (px-pxm)*(px-pxm) + (py-pym)*(py-pym);
198
199 if (dist > kMaxDiff) return 9999;
200 return dist;
201}
202
203//___________________________________________________________________________
204 void AliEMCALRecPoint::Draw(Option_t *option)
205 {
206 // Draw this AliEMCALRecPoint with its current attributes
207
208 AppendPad(option);
209 }
210
211//______________________________________________________________________________
70a93198 212void AliEMCALRecPoint::ExecuteEvent(Int_t /*event*/, Int_t, Int_t)
ab48128d 213{
214 // Execute action corresponding to one event
215 // This member function is called when a AliEMCALRecPoint is clicked with the locator
216 //
217 // If Left button is clicked on AliEMCALRecPoint, the digits are switched on
218 // and switched off when the mouse button is released.
219
220 // static Int_t pxold, pyold;
221
70a93198 222 /* static TGraph * digitgraph = 0 ;
ab48128d 223 static TPaveText* clustertext = 0 ;
224
225 if (!gPad->IsEditable()) return;
226
227 switch (event) {
228
229
230 case kButton1Down:{
231 AliEMCALDigit * digit ;
88cb7938 232 AliEMCALGeometry * emcalgeom = (AliEMCALGetter::Instance())->EMCALGeometry() ;
ab48128d 233
234 Int_t iDigit;
70a93198 235 Int_t relid[2] ;
ab48128d 236
237 const Int_t kMulDigit=AliEMCALRecPoint::GetDigitsMultiplicity() ;
238 Float_t * xi = new Float_t [kMulDigit] ;
239 Float_t * zi = new Float_t [kMulDigit] ;
240
241 for(iDigit = 0; iDigit < kMulDigit; iDigit++) {
242 Fatal("AliEMCALRecPoint::ExecuteEvent", " -> Something wrong with the code");
243 digit = 0 ; //dynamic_cast<AliEMCALDigit *>((fDigitsList)[iDigit]);
244 emcalgeom->AbsToRelNumbering(digit->GetId(), relid) ;
245 emcalgeom->PosInAlice(relid, xi[iDigit], zi[iDigit]) ;
246 }
247
248 if (!digitgraph) {
249 digitgraph = new TGraph(fMulDigit,xi,zi);
250 digitgraph-> SetMarkerStyle(5) ;
251 digitgraph-> SetMarkerSize(1.) ;
252 digitgraph-> SetMarkerColor(1) ;
253 digitgraph-> Draw("P") ;
254 }
255 if (!clustertext) {
256
257 TVector3 pos(0.,0.,0.) ;
258 GetLocalPosition(pos) ;
259 clustertext = new TPaveText(pos.X()-10,pos.Z()+10,pos.X()+50,pos.Z()+35,"") ;
260 Text_t line1[40] ;
261 Text_t line2[40] ;
262 sprintf(line1,"Energy=%1.2f GeV",GetEnergy()) ;
263 sprintf(line2,"%d Digits",GetDigitsMultiplicity()) ;
264 clustertext ->AddText(line1) ;
265 clustertext ->AddText(line2) ;
266 clustertext ->Draw("");
267 }
268 gPad->Update() ;
9e5d2067 269 Print("") ;
ab48128d 270 delete[] xi ;
271 delete[] zi ;
272 }
273
274break;
275
276 case kButton1Up:
277 if (digitgraph) {
278 delete digitgraph ;
279 digitgraph = 0 ;
280 }
281 if (clustertext) {
282 delete clustertext ;
283 clustertext = 0 ;
284 }
285
286 break;
287
70a93198 288 }*/
289}
290//____________________________________________________________________________
291void AliEMCALRecPoint::EvalAll(Float_t logWeight,TClonesArray * digits)
292{
293 // Evaluates all shower parameters
294
295 EvalLocalPosition(logWeight, digits) ;
296 EvalElipsAxis(logWeight, digits) ;
297 EvalDispersion(logWeight, digits) ;
298 EvalCoreEnergy(logWeight, digits);
299 EvalTime(digits) ;
300
87cdc3be 301 EvalPrimaries(digits) ;
302 EvalParents(digits);
70a93198 303}
304
305//____________________________________________________________________________
306void AliEMCALRecPoint::EvalDispersion(Float_t logWeight, TClonesArray * digits)
307{
308 // Calculates the dispersion of the shower at the origin of the RecPoint
309
310 Float_t d = 0. ;
311 Float_t wtot = 0. ;
312
313 AliEMCALDigit * digit ;
314
315 AliEMCALGeometry * geom = (AliEMCALGetter::Instance())->EMCALGeometry();
316
317 // Calculates the centre of gravity in the local EMCAL-module coordinates
318 Int_t iDigit;
319
320 if (!fLocPos.X() || !fLocPos.Y())
321 EvalLocalPosition(logWeight, digits) ;
322
323 const Float_t kDeg2Rad = TMath::DegToRad() ;
324
325 Float_t cluEta = fLocPos.X() ;
326 Float_t cluPhi = fLocPos.Y() ;
327 Float_t cluR = fLocPos.Z() ;
328
329 if (gDebug == 2)
330 printf("EvalDispersion: eta,phi,r = %f,%f,%f", cluEta, cluPhi, cluR) ;
331
332 // Calculates the dispersion in coordinates
333 wtot = 0.;
334 for(iDigit=0; iDigit < fMulDigit; iDigit++) {
335 digit = (AliEMCALDigit *) digits->At(fDigitsList[iDigit]) ;
336 Float_t etai = 0.;
337 Float_t phii = 0.;
338 geom->EtaPhiFromIndex(digit->GetId(), etai, phii);
339 phii = phii * kDeg2Rad;
340 if (gDebug == 2)
341 printf("EvalDispersion: id = %d, etai,phii = %f,%f", digit->GetId(), etai, phii) ;
342
343 Float_t w = TMath::Max(0.,logWeight+TMath::Log(fEnergyList[iDigit]/fAmp ) ) ;
344 d += w * ( (etai-cluEta)*(etai-cluEta) + (phii-cluPhi)*(phii-cluPhi) ) ;
345 wtot+=w ;
ab48128d 346 }
70a93198 347
348 if ( wtot > 0 )
349 d /= wtot ;
350 else
351 d = 0. ;
352
353 fDispersion = TMath::Sqrt(d) ;
354
ab48128d 355}
70a93198 356
ab48128d 357//____________________________________________________________________________
70a93198 358void AliEMCALRecPoint::EvalLocalPosition(Float_t logWeight, TClonesArray * digits)
88cb7938 359{
70a93198 360 // Calculates the center of gravity in the local EMCAL-module coordinates
361 Float_t wtot = 0. ;
362
363 // Int_t relid[3] ;
364
365 AliEMCALDigit * digit ;
366 AliEMCALGeometry * geom = (AliEMCALGetter::Instance())->EMCALGeometry();
367 Int_t iDigit;
368 Float_t cluEta = 0;
369 Float_t cluPhi = 0;
370 const Float_t kDeg2Rad = TMath::DegToRad();
371
372 for(iDigit=0; iDigit<fMulDigit; iDigit++) {
373 digit = dynamic_cast<AliEMCALDigit *>(digits->At(fDigitsList[iDigit])) ;
374
375 Float_t etai ;
376 Float_t phii ;
377 geom->EtaPhiFromIndex(digit->GetId(), etai, phii);
378 phii = phii * kDeg2Rad;
379 Float_t w = TMath::Max( 0., logWeight + TMath::Log( fEnergyList[iDigit] / fAmp ) ) ;
380 cluEta += (etai * w) ;
381 cluPhi += (phii * w );
382 wtot += w ;
383 }
ab48128d 384
70a93198 385 if ( wtot > 0 ) {
386 cluEta /= wtot ;
387 cluPhi /= wtot ;
388 } else {
389 cluEta = -1 ;
390 cluPhi = -1.;
391 }
392
393 fLocPos.SetX(cluEta);
394 fLocPos.SetY(cluPhi);
395 fLocPos.SetZ(geom->GetIP2ECASection());
396
397 if (gDebug==2)
398 printf("EvalLocalPosition: eta,phi,r = %f,%f,%f", fLocPos.X(), fLocPos.Y(), fLocPos.Z()) ;
399 fLocPosM = 0 ;
ab48128d 400}
401
70a93198 402//______________________________________________________________________________
403void AliEMCALRecPoint::EvalCoreEnergy(Float_t logWeight, TClonesArray * digits)
404{
405 // This function calculates energy in the core,
406 // i.e. within a radius rad = 3cm around the center. Beyond this radius
407 // in accordance with shower profile the energy deposition
408 // should be less than 2%
409
410 AliEMCALDigit * digit ;
411 const Float_t kDeg2Rad = TMath::DegToRad() ;
412 AliEMCALGeometry * geom = (AliEMCALGetter::Instance())->EMCALGeometry();
413 Int_t iDigit;
414
415 if (!fLocPos.X() || !fLocPos.Y() ) {
416 EvalLocalPosition(logWeight, digits);
417 }
418
419 for(iDigit=0; iDigit < fMulDigit; iDigit++) {
420 digit = (AliEMCALDigit *) ( digits->At(fDigitsList[iDigit]) ) ;
421 Float_t etai = 0. ;
422 Float_t phii = 0. ;
423 geom->PosInAlice(digit->GetId(), etai, phii);
424 phii = phii * kDeg2Rad;
425
426 Float_t distance = TMath::Sqrt((etai-fLocPos.X())*(etai-fLocPos.X())+(phii-fLocPos.Y())*(phii-fLocPos.Y())) ;
427 if(distance < fCoreRadius)
428 fCoreEnergy += fEnergyList[iDigit] ;
429 }
430
431}
ab48128d 432//____________________________________________________________________________
70a93198 433void AliEMCALRecPoint::EvalElipsAxis(Float_t logWeight,TClonesArray * digits)
ab48128d 434{
70a93198 435 // Calculates the axis of the shower ellipsoid in eta and phi
ab48128d 436
70a93198 437 Double_t wtot = 0. ;
438 Double_t x = 0.;
439 Double_t z = 0.;
440 Double_t dxx = 0.;
441 Double_t dzz = 0.;
442 Double_t dxz = 0.;
ab48128d 443
ff1e7e2f 444 const Float_t kDeg2Rad = TMath::DegToRad();
70a93198 445 AliEMCALDigit * digit ;
446
447 AliEMCALGeometry * geom = (AliEMCALGetter::Instance())->EMCALGeometry();
448
449 Int_t iDigit;
ab48128d 450
70a93198 451 for(iDigit=0; iDigit<fMulDigit; iDigit++) {
452 digit = (AliEMCALDigit *) digits->At(fDigitsList[iDigit]) ;
453 Float_t etai = 0. ;
454 Float_t phii = 0. ;
455 geom->EtaPhiFromIndex(digit->GetId(), etai, phii);
ff1e7e2f 456 phii = phii * kDeg2Rad;
70a93198 457 Double_t w = TMath::Max(0.,logWeight+TMath::Log(fEnergyList[iDigit]/fAmp ) ) ;
ff1e7e2f 458
70a93198 459 dxx += w * etai * etai ;
460 x += w * etai ;
461 dzz += w * phii * phii ;
462 z += w * phii ;
ff1e7e2f 463 dxz += w * etai * phii ;
70a93198 464 wtot += w ;
465 }
ff1e7e2f 466
70a93198 467 if ( wtot > 0 ) {
468 dxx /= wtot ;
469 x /= wtot ;
470 dxx -= x * x ;
471 dzz /= wtot ;
472 z /= wtot ;
473 dzz -= z * z ;
474 dxz /= wtot ;
475 dxz -= x * z ;
ab48128d 476
70a93198 477 fLambda[0] = 0.5 * (dxx + dzz) + TMath::Sqrt( 0.25 * (dxx - dzz) * (dxx - dzz) + dxz * dxz ) ;
478 if(fLambda[0] > 0)
479 fLambda[0] = TMath::Sqrt(fLambda[0]) ;
480 else
481 fLambda[0] = 0;
482
483 fLambda[1] = 0.5 * (dxx + dzz) - TMath::Sqrt( 0.25 * (dxx - dzz) * (dxx - dzz) + dxz * dxz ) ;
ff1e7e2f 484
70a93198 485 if(fLambda[1] > 0) //To avoid exception if numerical errors lead to negative lambda.
486 fLambda[1] = TMath::Sqrt(fLambda[1]) ;
487 else
488 fLambda[1]= 0. ;
489 } else {
490 fLambda[0]= 0. ;
491 fLambda[1]= 0. ;
ab48128d 492 }
ff1e7e2f 493
494
ab48128d 495}
496
497//______________________________________________________________________________
498void AliEMCALRecPoint::EvalPrimaries(TClonesArray * digits)
499{
500 // Constructs the list of primary particles (tracks) which have contributed to this RecPoint
501
502 AliEMCALDigit * digit ;
503 Int_t * tempo = new Int_t[fMaxTrack] ;
504
505 Int_t index ;
506 for ( index = 0 ; index < GetDigitsMultiplicity() ; index++ ) { // all digits
507 digit = dynamic_cast<AliEMCALDigit *>(digits->At( fDigitsList[index] )) ;
508 Int_t nprimaries = digit->GetNprimary() ;
5c0368b8 509 if ( nprimaries == 0 ) continue ;
ab48128d 510 Int_t * newprimaryarray = new Int_t[nprimaries] ;
511 Int_t ii ;
512 for ( ii = 0 ; ii < nprimaries ; ii++)
513 newprimaryarray[ii] = digit->GetPrimary(ii+1) ;
514
515 Int_t jndex ;
516 for ( jndex = 0 ; jndex < nprimaries ; jndex++ ) { // all primaries in digit
517 if ( fMulTrack > fMaxTrack ) {
f792c312 518 fMulTrack = fMaxTrack ;
9859bfc0 519 Error("GetNprimaries", "increase fMaxTrack ") ;
ab48128d 520 break ;
521 }
522 Int_t newprimary = newprimaryarray[jndex] ;
523 Int_t kndex ;
524 Bool_t already = kFALSE ;
525 for ( kndex = 0 ; kndex < fMulTrack ; kndex++ ) { //check if not already stored
526 if ( newprimary == tempo[kndex] ){
527 already = kTRUE ;
528 break ;
529 }
530 } // end of check
5c0368b8 531 if ( !already && (fMulTrack < fMaxTrack)) { // store it
ab48128d 532 tempo[fMulTrack] = newprimary ;
533 fMulTrack++ ;
534 } // store it
535 } // all primaries in digit
f792c312 536 delete [] newprimaryarray ;
ab48128d 537 } // all digits
538
539
540 fTracksList = new Int_t[fMulTrack] ;
541 for(index = 0; index < fMulTrack; index++)
542 fTracksList[index] = tempo[index] ;
543
f792c312 544 delete [] tempo ;
ab48128d 545
546}
7ee5c5be 547
87cdc3be 548//______________________________________________________________________________
549void AliEMCALRecPoint::EvalParents(TClonesArray * digits)
550{
551 // Constructs the list of parent particles (tracks) which have contributed to this RecPoint
552
553 AliEMCALDigit * digit ;
554 Int_t * tempo = new Int_t[fMaxParent] ;
555
556 Int_t index ;
557 for ( index = 0 ; index < GetDigitsMultiplicity() ; index++ ) { // all digits
558 digit = dynamic_cast<AliEMCALDigit *>(digits->At( fDigitsList[index] )) ;
559 Int_t nparents = digit->GetNiparent() ;
5c0368b8 560 if ( nparents == 0 ) continue ;
87cdc3be 561 Int_t * newparentarray = new Int_t[nparents] ;
562 Int_t ii ;
563 for ( ii = 0 ; ii < nparents ; ii++)
564 newparentarray[ii] = digit->GetIparent(ii+1) ;
565
566 Int_t jndex ;
567 for ( jndex = 0 ; jndex < nparents ; jndex++ ) { // all primaries in digit
568 if ( fMulParent > fMaxParent ) {
569 fMulTrack = - 1 ;
570 Error("GetNiparent", "increase fMaxParent") ;
571 break ;
572 }
573 Int_t newparent = newparentarray[jndex] ;
574 Int_t kndex ;
575 Bool_t already = kFALSE ;
f1d429fd 576 for ( kndex = 0 ; kndex < fMulParent ; kndex++ ) { //check if not already stored
87cdc3be 577 if ( newparent == tempo[kndex] ){
578 already = kTRUE ;
579 break ;
580 }
581 } // end of check
5c0368b8 582 if ( !already && (fMulTrack < fMaxTrack)) { // store it
87cdc3be 583 tempo[fMulParent] = newparent ;
584 fMulParent++ ;
585 } // store it
586 } // all parents in digit
27e2a47c 587 delete [] newparentarray ;
87cdc3be 588 } // all digits
589
27e2a47c 590 if (fMulParent>0) {
591 fParentsList = new Int_t[fMulParent] ;
592 for(index = 0; index < fMulParent; index++)
593 fParentsList[index] = tempo[index] ;
594 }
87cdc3be 595
27e2a47c 596 delete [] tempo ;
87cdc3be 597
598}
599
ab48128d 600//____________________________________________________________________________
70a93198 601void AliEMCALRecPoint::GetLocalPosition(TVector3 & lpos) const
602{
603 // returns the position of the cluster in the local reference system of ALICE
604 // X = eta, Y = phi, Z = r (a constant for the EMCAL)
605
606 lpos.SetX(fLocPos.X()) ;
607 lpos.SetY(fLocPos.Y()) ;
608 lpos.SetZ(fLocPos.Z()) ;
609}
610
611//____________________________________________________________________________
ab48128d 612void AliEMCALRecPoint::GetGlobalPosition(TVector3 & gpos) const
613{
614 // returns the position of the cluster in the global reference system of ALICE
70a93198 615 // These are now the Cartesian X, Y and Z
616
617 AliEMCALGeometry * geom = (AliEMCALGetter::Instance())->EMCALGeometry();
618 Int_t absid = geom->TowerIndexFromEtaPhi(fLocPos.X(), TMath::RadToDeg()*fLocPos.Y());
619 geom->XYZFromIndex(absid, gpos);
620}
621
622//____________________________________________________________________________
623Float_t AliEMCALRecPoint::GetMaximalEnergy(void) const
624{
625 // Finds the maximum energy in the cluster
ab48128d 626
70a93198 627 Float_t menergy = 0. ;
628
629 Int_t iDigit;
630
631 for(iDigit=0; iDigit<fMulDigit; iDigit++) {
632
633 if(fEnergyList[iDigit] > menergy)
634 menergy = fEnergyList[iDigit] ;
635 }
636 return menergy ;
ab48128d 637}
638
aad8e277 639//____________________________________________________________________________
70a93198 640Int_t AliEMCALRecPoint::GetMultiplicityAtLevel(Float_t H) const
aad8e277 641{
70a93198 642 // Calculates the multiplicity of digits with energy larger than H*energy
643
644 Int_t multipl = 0 ;
645 Int_t iDigit ;
646 for(iDigit=0; iDigit<fMulDigit; iDigit++) {
647
648 if(fEnergyList[iDigit] > H * fAmp)
649 multipl++ ;
650 }
651 return multipl ;
652}
653
654//____________________________________________________________________________
655Int_t AliEMCALRecPoint::GetNumberOfLocalMax(AliEMCALDigit ** maxAt, Float_t * maxAtEnergy,
656 Float_t locMaxCut,TClonesArray * digits) const
657{
658 // Calculates the number of local maxima in the cluster using fLocalMaxCut as the minimum
659 // energy difference between two local maxima
660
661 AliEMCALDigit * digit ;
662 AliEMCALDigit * digitN ;
663
664 Int_t iDigitN ;
665 Int_t iDigit ;
666
667 for(iDigit = 0; iDigit < fMulDigit; iDigit++)
668 maxAt[iDigit] = (AliEMCALDigit*) digits->At(fDigitsList[iDigit]) ;
669
670 for(iDigit = 0 ; iDigit < fMulDigit; iDigit++) {
671 if(maxAt[iDigit]) {
672 digit = maxAt[iDigit] ;
673
674 for(iDigitN = 0; iDigitN < fMulDigit; iDigitN++) {
675 digitN = (AliEMCALDigit *) digits->At(fDigitsList[iDigitN]) ;
676
677 if ( AreNeighbours(digit, digitN) ) {
678 if (fEnergyList[iDigit] > fEnergyList[iDigitN] ) {
679 maxAt[iDigitN] = 0 ;
680 // but may be digit too is not local max ?
681 if(fEnergyList[iDigit] < fEnergyList[iDigitN] + locMaxCut)
682 maxAt[iDigit] = 0 ;
683 }
684 else {
685 maxAt[iDigit] = 0 ;
686 // but may be digitN too is not local max ?
687 if(fEnergyList[iDigit] > fEnergyList[iDigitN] - locMaxCut)
688 maxAt[iDigitN] = 0 ;
689 }
690 } // if Areneighbours
691 } // while digitN
692 } // slot not empty
693 } // while digit
694
695 iDigitN = 0 ;
696 for(iDigit = 0; iDigit < fMulDigit; iDigit++) {
697 if(maxAt[iDigit] ){
698 maxAt[iDigitN] = maxAt[iDigit] ;
699 maxAtEnergy[iDigitN] = fEnergyList[iDigit] ;
700 iDigitN++ ;
701 }
702 }
703 return iDigitN ;
704}
705//____________________________________________________________________________
706void AliEMCALRecPoint::EvalTime(TClonesArray * digits){
707 // time is set to the time of the digit with the maximum energy
708
709 Float_t maxE = 0;
710 Int_t maxAt = 0;
711 for(Int_t idig=0; idig < fMulDigit; idig++){
712 if(fEnergyList[idig] > maxE){
713 maxE = fEnergyList[idig] ;
714 maxAt = idig;
715 }
716 }
717 fTime = ((AliEMCALDigit*) digits->At(fDigitsList[maxAt]))->GetTime() ;
aad8e277 718
aad8e277 719}
ab48128d 720
721//______________________________________________________________________________
722void AliEMCALRecPoint::Paint(Option_t *)
723{
724 // Paint this ALiRecPoint as a TMarker with its current attributes
725
726 TVector3 pos(0.,0.,0.) ;
727 GetLocalPosition(pos) ;
728 Coord_t x = pos.X() ;
729 Coord_t y = pos.Z() ;
730 Color_t markercolor = 1 ;
731 Size_t markersize = 1. ;
732 Style_t markerstyle = 5 ;
733
734 if (!gPad->IsBatch()) {
735 gVirtualX->SetMarkerColor(markercolor) ;
736 gVirtualX->SetMarkerSize (markersize) ;
737 gVirtualX->SetMarkerStyle(markerstyle) ;
738 }
739 gPad->SetAttMarkerPS(markercolor,markerstyle,markersize) ;
740 gPad->PaintPolyMarker(1,&x,&y,"") ;
741}
70a93198 742
743//______________________________________________________________________________
744Float_t AliEMCALRecPoint::EtaToTheta(Float_t arg) const
745{
746 //Converts Theta (Radians) to Eta(Radians)
747 return (2.*TMath::ATan(TMath::Exp(-arg)));
748}
749
750//______________________________________________________________________________
751Float_t AliEMCALRecPoint::ThetaToEta(Float_t arg) const
752{
753 //Converts Eta (Radians) to Theta(Radians)
754 return (-1 * TMath::Log(TMath::Tan(0.5 * arg)));
755}
261b1065 756
757//____________________________________________________________________________
758void AliEMCALRecPoint::Print(Option_t *) const
759{
760 // Print the list of digits belonging to the cluster
761
762 TString message ;
763 message = "AliPHOSEmcRecPoint:\n" ;
764 message += " digits # = " ;
765 Info("Print", message.Data()) ;
766
767 Int_t iDigit;
768 for(iDigit=0; iDigit<fMulDigit; iDigit++)
769 printf(" %d ", fDigitsList[iDigit] ) ;
770
771 Info("Print", " Energies = ") ;
772 for(iDigit=0; iDigit<fMulDigit; iDigit++)
773 printf(" %f ", fEnergyList[iDigit] ) ;
774 printf("\n") ;
775 Info("Print", " Primaries ") ;
776 for(iDigit = 0;iDigit < fMulTrack; iDigit++)
777 printf(" %d ", fTracksList[iDigit]) ;
778 printf("\n") ;
779 message = " Multiplicity = %d" ;
780 message += " Cluster Energy = %f" ;
781 message += " Core energy = %f" ;
782 message += " Core radius = %f" ;
783 message += " Number of primaries %d" ;
784 message += " Stored at position %d" ;
785
786 Info("Print", message.Data(), fMulDigit, fAmp, fCoreEnergy, fCoreRadius, fMulTrack, GetIndexInList() ) ;
787}