02-aug-2005 NvE Support for explicit (de)calibration functions introduced in AliAttrib.
[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
ab48128d 41//____________________________________________________________________________
42AliEMCALRecPoint::AliEMCALRecPoint()
43 : AliRecPoint()
44{
45 // ctor
692088ae 46 fMaxTrack = 0 ;
70a93198 47 fMulDigit = 0 ;
87cdc3be 48 fMaxParent = 0;
49 fMulParent = 0;
70a93198 50 fAmp = 0. ;
51 fCoreEnergy = 0 ;
52 fEnergyList = 0 ;
87cdc3be 53 fParentsList = 0;
70a93198 54 fTime = 0. ;
55 fLocPos.SetX(0.) ; //Local position should be evaluated
56 fCoreRadius = 10; //HG Check this
ab48128d 57}
58
59//____________________________________________________________________________
60AliEMCALRecPoint::AliEMCALRecPoint(const char * opt) : AliRecPoint(opt)
61{
62 // ctor
ff1e7e2f 63 fMaxTrack = 1000 ;
64 fMaxParent = 1000;
87cdc3be 65 fMulDigit = 0 ;
66 fMulParent = 0;
70a93198 67 fAmp = 0. ;
68 fCoreEnergy = 0 ;
69 fEnergyList = 0 ;
87cdc3be 70 fParentsList = new Int_t[fMaxParent];
70a93198 71 fTime = -1. ;
72 fLocPos.SetX(1000000.) ; //Local position should be evaluated
73 fCoreRadius = 10; //HG Check this
74}
75//____________________________________________________________________________
76AliEMCALRecPoint::~AliEMCALRecPoint()
77{
78 // dtor
79 if ( fEnergyList )
80 delete[] fEnergyList ;
87cdc3be 81 if ( fParentsList)
82 delete[] fParentsList;
70a93198 83}
84
85//____________________________________________________________________________
86void AliEMCALRecPoint::AddDigit(AliEMCALDigit & digit, Float_t Energy)
87{
88 // Adds a digit to the RecPoint
89 // and accumulates the total amplitude and the multiplicity
90
91 if(fEnergyList == 0)
92 fEnergyList = new Float_t[fMaxDigit];
93
94 if ( fMulDigit >= fMaxDigit ) { // increase the size of the lists
95 fMaxDigit*=2 ;
a64a06d6 96 Int_t * tempo = new Int_t[fMaxDigit];
97 Float_t * tempoE = new Float_t[fMaxDigit];
70a93198 98
99 Int_t index ;
100 for ( index = 0 ; index < fMulDigit ; index++ ){
101 tempo[index] = fDigitsList[index] ;
102 tempoE[index] = fEnergyList[index] ;
103 }
104
105 delete [] fDigitsList ;
a64a06d6 106 fDigitsList = new Int_t[fMaxDigit];
70a93198 107
108 delete [] fEnergyList ;
a64a06d6 109 fEnergyList = new Float_t[fMaxDigit];
70a93198 110
111 for ( index = 0 ; index < fMulDigit ; index++ ){
112 fDigitsList[index] = tempo[index] ;
113 fEnergyList[index] = tempoE[index] ;
114 }
115
116 delete [] tempo ;
117 delete [] tempoE ;
118 } // if
119
120 fDigitsList[fMulDigit] = digit.GetIndexInList() ;
121 fEnergyList[fMulDigit] = Energy ;
122 fMulDigit++ ;
123 fAmp += Energy ;
124
125}
126//____________________________________________________________________________
127Bool_t AliEMCALRecPoint::AreNeighbours(AliEMCALDigit * digit1, AliEMCALDigit * digit2 ) const
128{
129 // Tells if (true) or not (false) two digits are neighbours
130 // A neighbour is defined as being two digits which share a corner
131
132 Bool_t areNeighbours = kFALSE ;
133
134 AliEMCALGeometry * geom = (AliEMCALGetter::Instance())->EMCALGeometry();
135
136 Int_t relid1[2] ;
1963b290 137 //copied for shish-kebab geometry, ieta,iphi is cast as float as eta,phi conversion
138 // for this geometry does not exist
139 int nSupMod=0, nTower=0, nIphi=0, nIeta=0;
140 int iphi=0, ieta=0;
141 geom->GetCellIndex(digit1->GetId(), nSupMod,nTower,nIphi,nIeta);
142 geom->GetCellPhiEtaIndexInSModule(nTower,nIphi,nIeta, iphi,ieta);
143 relid1[0]=ieta;
144 relid1[1]=iphi;
145// geom->AbsToRelNumbering(digit1->GetId(), relid1) ;
70a93198 146
147 Int_t relid2[2] ;
1963b290 148 //copied for shish-kebab geometry, ieta,iphi is cast as float as eta,phi conversion
149 // for this geometry does not exist
150 int nSupMod1=0, nTower1=0, nIphi1=0, nIeta1=0;
151 int iphi1=0, ieta1=0;
152 geom->GetCellIndex(digit2->GetId(), nSupMod1,nTower1,nIphi1,nIeta1);
153 geom->GetCellPhiEtaIndexInSModule(nTower1,nIphi1,nIeta1, iphi1,ieta1);
154 relid2[0]=ieta1;
155 relid2[1]=iphi1;
156// geom->AbsToRelNumbering(digit2->GetId(), relid2) ;
70a93198 157
158 Int_t rowdiff = TMath::Abs( relid1[0] - relid2[0] ) ;
159 Int_t coldiff = TMath::Abs( relid1[1] - relid2[1] ) ;
160
161 if (( coldiff <= 1 ) && ( rowdiff <= 1 ) && (coldiff + rowdiff > 0))
162 areNeighbours = kTRUE ;
ab48128d 163
70a93198 164 return areNeighbours;
165}
166
167//____________________________________________________________________________
168Int_t AliEMCALRecPoint::Compare(const TObject * obj) const
169{
170 // Compares two RecPoints according to their position in the EMCAL modules
171
172 Float_t delta = 1 ; //Width of "Sorting row". If you change this
173 //value (what is senseless) change as well delta in
174 //AliEMCALTrackSegmentMakerv* and other RecPoints...
175 Int_t rv ;
176
177 AliEMCALRecPoint * clu = (AliEMCALRecPoint *)obj ;
178
179 TVector3 locpos1;
180 GetLocalPosition(locpos1);
181 TVector3 locpos2;
182 clu->GetLocalPosition(locpos2);
183
184 Int_t rowdif = (Int_t)TMath::Ceil(locpos1.X()/delta)-(Int_t)TMath::Ceil(locpos2.X()/delta) ;
185 if (rowdif> 0)
186 rv = 1 ;
187 else if(rowdif < 0)
188 rv = -1 ;
189 else if(locpos1.Y()>locpos2.Y())
190 rv = -1 ;
191 else
192 rv = 1 ;
193
194 return rv ;
ab48128d 195}
196
197//____________________________________________________________________________
198Int_t AliEMCALRecPoint::DistancetoPrimitive(Int_t px, Int_t py)
199{
200 // Compute distance from point px,py to a AliEMCALRecPoint considered as a Tmarker
201 // Compute the closest distance of approach from point px,py to this marker.
202 // The distance is computed in pixels units.
70a93198 203 // HG Still need to update -> Not sure what this should achieve
ab48128d 204
205 TVector3 pos(0.,0.,0.) ;
70a93198 206 GetLocalPosition(pos) ;
ab48128d 207 Float_t x = pos.X() ;
70a93198 208 Float_t y = pos.Y() ;
ab48128d 209 const Int_t kMaxDiff = 10;
210 Int_t pxm = gPad->XtoAbsPixel(x);
211 Int_t pym = gPad->YtoAbsPixel(y);
212 Int_t dist = (px-pxm)*(px-pxm) + (py-pym)*(py-pym);
213
214 if (dist > kMaxDiff) return 9999;
215 return dist;
216}
217
218//___________________________________________________________________________
219 void AliEMCALRecPoint::Draw(Option_t *option)
220 {
221 // Draw this AliEMCALRecPoint with its current attributes
222
223 AppendPad(option);
224 }
225
226//______________________________________________________________________________
70a93198 227void AliEMCALRecPoint::ExecuteEvent(Int_t /*event*/, Int_t, Int_t)
ab48128d 228{
229 // Execute action corresponding to one event
230 // This member function is called when a AliEMCALRecPoint is clicked with the locator
231 //
232 // If Left button is clicked on AliEMCALRecPoint, the digits are switched on
233 // and switched off when the mouse button is released.
234
235 // static Int_t pxold, pyold;
236
70a93198 237 /* static TGraph * digitgraph = 0 ;
ab48128d 238 static TPaveText* clustertext = 0 ;
239
240 if (!gPad->IsEditable()) return;
241
242 switch (event) {
243
244
245 case kButton1Down:{
246 AliEMCALDigit * digit ;
88cb7938 247 AliEMCALGeometry * emcalgeom = (AliEMCALGetter::Instance())->EMCALGeometry() ;
ab48128d 248
249 Int_t iDigit;
70a93198 250 Int_t relid[2] ;
ab48128d 251
252 const Int_t kMulDigit=AliEMCALRecPoint::GetDigitsMultiplicity() ;
253 Float_t * xi = new Float_t [kMulDigit] ;
254 Float_t * zi = new Float_t [kMulDigit] ;
255
256 for(iDigit = 0; iDigit < kMulDigit; iDigit++) {
257 Fatal("AliEMCALRecPoint::ExecuteEvent", " -> Something wrong with the code");
258 digit = 0 ; //dynamic_cast<AliEMCALDigit *>((fDigitsList)[iDigit]);
259 emcalgeom->AbsToRelNumbering(digit->GetId(), relid) ;
260 emcalgeom->PosInAlice(relid, xi[iDigit], zi[iDigit]) ;
261 }
262
263 if (!digitgraph) {
264 digitgraph = new TGraph(fMulDigit,xi,zi);
265 digitgraph-> SetMarkerStyle(5) ;
266 digitgraph-> SetMarkerSize(1.) ;
267 digitgraph-> SetMarkerColor(1) ;
268 digitgraph-> Draw("P") ;
269 }
270 if (!clustertext) {
271
272 TVector3 pos(0.,0.,0.) ;
273 GetLocalPosition(pos) ;
274 clustertext = new TPaveText(pos.X()-10,pos.Z()+10,pos.X()+50,pos.Z()+35,"") ;
275 Text_t line1[40] ;
276 Text_t line2[40] ;
277 sprintf(line1,"Energy=%1.2f GeV",GetEnergy()) ;
278 sprintf(line2,"%d Digits",GetDigitsMultiplicity()) ;
279 clustertext ->AddText(line1) ;
280 clustertext ->AddText(line2) ;
281 clustertext ->Draw("");
282 }
283 gPad->Update() ;
9e5d2067 284 Print("") ;
ab48128d 285 delete[] xi ;
286 delete[] zi ;
287 }
288
289break;
290
291 case kButton1Up:
292 if (digitgraph) {
293 delete digitgraph ;
294 digitgraph = 0 ;
295 }
296 if (clustertext) {
297 delete clustertext ;
298 clustertext = 0 ;
299 }
300
301 break;
302
70a93198 303 }*/
304}
305//____________________________________________________________________________
306void AliEMCALRecPoint::EvalAll(Float_t logWeight,TClonesArray * digits)
307{
308 // Evaluates all shower parameters
309
310 EvalLocalPosition(logWeight, digits) ;
1963b290 311 printf("eval position done\n");
70a93198 312 EvalElipsAxis(logWeight, digits) ;
1963b290 313 printf("eval axis done\n");
70a93198 314 EvalDispersion(logWeight, digits) ;
1963b290 315 printf("eval dispersion done\n");
316 // EvalCoreEnergy(logWeight, digits);
317 // printf("eval energy done\n");
70a93198 318 EvalTime(digits) ;
1963b290 319 printf("eval time done\n");
70a93198 320
87cdc3be 321 EvalPrimaries(digits) ;
1963b290 322 printf("eval pri done\n");
87cdc3be 323 EvalParents(digits);
1963b290 324 printf("eval parent done\n");
70a93198 325}
326
327//____________________________________________________________________________
328void AliEMCALRecPoint::EvalDispersion(Float_t logWeight, TClonesArray * digits)
329{
330 // Calculates the dispersion of the shower at the origin of the RecPoint
331
332 Float_t d = 0. ;
333 Float_t wtot = 0. ;
334
335 AliEMCALDigit * digit ;
336
337 AliEMCALGeometry * geom = (AliEMCALGetter::Instance())->EMCALGeometry();
338
339 // Calculates the centre of gravity in the local EMCAL-module coordinates
340 Int_t iDigit;
341
342 if (!fLocPos.X() || !fLocPos.Y())
343 EvalLocalPosition(logWeight, digits) ;
344
1963b290 345 //Sub const Float_t kDeg2Rad = TMath::DegToRad() ;
70a93198 346
347 Float_t cluEta = fLocPos.X() ;
348 Float_t cluPhi = fLocPos.Y() ;
349 Float_t cluR = fLocPos.Z() ;
350
351 if (gDebug == 2)
352 printf("EvalDispersion: eta,phi,r = %f,%f,%f", cluEta, cluPhi, cluR) ;
353
354 // Calculates the dispersion in coordinates
355 wtot = 0.;
356 for(iDigit=0; iDigit < fMulDigit; iDigit++) {
357 digit = (AliEMCALDigit *) digits->At(fDigitsList[iDigit]) ;
358 Float_t etai = 0.;
359 Float_t phii = 0.;
1963b290 360 //copied for shish-kebab geometry, ieta,iphi is cast as float as eta,phi conversion
361 // for this geometry does not exist
362 int nSupMod=0, nTower=0, nIphi=0, nIeta=0;
363 int iphi=0, ieta=0;
364 geom->GetCellIndex(digit->GetId(), nSupMod,nTower,nIphi,nIeta);
365 geom->GetCellPhiEtaIndexInSModule(nTower,nIphi,nIeta, iphi,ieta);
366 etai=(Float_t)ieta;
367 phii=(Float_t)iphi;
368 printf("%f,%d,%d \n", fAmp, ieta, iphi) ;
369
370/* Sub
371 geom->EtaPhiFromIndex(digit->GetId(), etai, phii);
70a93198 372 phii = phii * kDeg2Rad;
1963b290 373*/
374///////////////////////////
375 if(fAmp>0)printf("%f %d %f", fAmp,iDigit,fEnergyList[iDigit]) ;
376/////////////////////////
377
70a93198 378 if (gDebug == 2)
379 printf("EvalDispersion: id = %d, etai,phii = %f,%f", digit->GetId(), etai, phii) ;
380
381 Float_t w = TMath::Max(0.,logWeight+TMath::Log(fEnergyList[iDigit]/fAmp ) ) ;
382 d += w * ( (etai-cluEta)*(etai-cluEta) + (phii-cluPhi)*(phii-cluPhi) ) ;
383 wtot+=w ;
ab48128d 384 }
70a93198 385
386 if ( wtot > 0 )
387 d /= wtot ;
388 else
389 d = 0. ;
390
391 fDispersion = TMath::Sqrt(d) ;
1963b290 392 printf("Dispersion: = %f", fDispersion) ;
ab48128d 393}
70a93198 394
ab48128d 395//____________________________________________________________________________
70a93198 396void AliEMCALRecPoint::EvalLocalPosition(Float_t logWeight, TClonesArray * digits)
88cb7938 397{
70a93198 398 // Calculates the center of gravity in the local EMCAL-module coordinates
399 Float_t wtot = 0. ;
400
401 // Int_t relid[3] ;
402
403 AliEMCALDigit * digit ;
404 AliEMCALGeometry * geom = (AliEMCALGetter::Instance())->EMCALGeometry();
405 Int_t iDigit;
406 Float_t cluEta = 0;
407 Float_t cluPhi = 0;
1963b290 408 //Sub const Float_t kDeg2Rad = TMath::DegToRad();
70a93198 409
410 for(iDigit=0; iDigit<fMulDigit; iDigit++) {
411 digit = dynamic_cast<AliEMCALDigit *>(digits->At(fDigitsList[iDigit])) ;
412
413 Float_t etai ;
414 Float_t phii ;
1963b290 415 //copied for shish-kebab geometry, ieta,iphi is cast as float as eta,phi conversion
416 // for this geometry does not exist
417 int nSupMod=0, nTower=0, nIphi=0, nIeta=0;
418 int iphi=0, ieta=0;
419 geom->GetCellIndex(digit->GetId(), nSupMod,nTower,nIphi,nIeta);
420 geom->GetCellPhiEtaIndexInSModule(nTower,nIphi,nIeta, iphi,ieta);
421 etai=(Float_t)ieta;
422 phii=(Float_t)iphi;
423//Sub geom->EtaPhiFromIndex(digit->GetId(), etai, phii);
424//Sub phii = phii * kDeg2Rad;
70a93198 425 Float_t w = TMath::Max( 0., logWeight + TMath::Log( fEnergyList[iDigit] / fAmp ) ) ;
426 cluEta += (etai * w) ;
427 cluPhi += (phii * w );
428 wtot += w ;
429 }
ab48128d 430
70a93198 431 if ( wtot > 0 ) {
432 cluEta /= wtot ;
433 cluPhi /= wtot ;
434 } else {
435 cluEta = -1 ;
436 cluPhi = -1.;
437 }
438
439 fLocPos.SetX(cluEta);
440 fLocPos.SetY(cluPhi);
441 fLocPos.SetZ(geom->GetIP2ECASection());
442
1963b290 443// if (gDebug==2)
70a93198 444 printf("EvalLocalPosition: eta,phi,r = %f,%f,%f", fLocPos.X(), fLocPos.Y(), fLocPos.Z()) ;
445 fLocPosM = 0 ;
ab48128d 446}
447
70a93198 448//______________________________________________________________________________
449void AliEMCALRecPoint::EvalCoreEnergy(Float_t logWeight, TClonesArray * digits)
450{
451 // This function calculates energy in the core,
452 // i.e. within a radius rad = 3cm around the center. Beyond this radius
453 // in accordance with shower profile the energy deposition
454 // should be less than 2%
455
456 AliEMCALDigit * digit ;
457 const Float_t kDeg2Rad = TMath::DegToRad() ;
458 AliEMCALGeometry * geom = (AliEMCALGetter::Instance())->EMCALGeometry();
459 Int_t iDigit;
460
461 if (!fLocPos.X() || !fLocPos.Y() ) {
462 EvalLocalPosition(logWeight, digits);
463 }
464
465 for(iDigit=0; iDigit < fMulDigit; iDigit++) {
466 digit = (AliEMCALDigit *) ( digits->At(fDigitsList[iDigit]) ) ;
467 Float_t etai = 0. ;
468 Float_t phii = 0. ;
469 geom->PosInAlice(digit->GetId(), etai, phii);
470 phii = phii * kDeg2Rad;
471
472 Float_t distance = TMath::Sqrt((etai-fLocPos.X())*(etai-fLocPos.X())+(phii-fLocPos.Y())*(phii-fLocPos.Y())) ;
473 if(distance < fCoreRadius)
474 fCoreEnergy += fEnergyList[iDigit] ;
475 }
476
477}
ab48128d 478//____________________________________________________________________________
70a93198 479void AliEMCALRecPoint::EvalElipsAxis(Float_t logWeight,TClonesArray * digits)
ab48128d 480{
70a93198 481 // Calculates the axis of the shower ellipsoid in eta and phi
ab48128d 482
70a93198 483 Double_t wtot = 0. ;
484 Double_t x = 0.;
485 Double_t z = 0.;
486 Double_t dxx = 0.;
487 Double_t dzz = 0.;
488 Double_t dxz = 0.;
ab48128d 489
ff1e7e2f 490 const Float_t kDeg2Rad = TMath::DegToRad();
70a93198 491 AliEMCALDigit * digit ;
492
493 AliEMCALGeometry * geom = (AliEMCALGetter::Instance())->EMCALGeometry();
1963b290 494 TString gn(geom->GetName());
70a93198 495
496 Int_t iDigit;
ab48128d 497
70a93198 498 for(iDigit=0; iDigit<fMulDigit; iDigit++) {
499 digit = (AliEMCALDigit *) digits->At(fDigitsList[iDigit]) ;
500 Float_t etai = 0. ;
501 Float_t phii = 0. ;
1963b290 502 if(gn.Contains("SHISH")) {
503 //copied for shish-kebab geometry, ieta,iphi is cast as float as eta,phi conversion
504 // for this geometry does not exist
505 int nSupMod=0, nTower=0, nIphi=0, nIeta=0;
506 int iphi=0, ieta=0;
507 geom->GetCellIndex(digit->GetId(), nSupMod,nTower,nIphi,nIeta);
508 geom->GetCellPhiEtaIndexInSModule(nTower,nIphi,nIeta, iphi,ieta);
509 etai=(Float_t)ieta;
510 phii=(Float_t)iphi;
511 } else {
512 geom->EtaPhiFromIndex(digit->GetId(), etai, phii);
513 phii = phii * kDeg2Rad;
514 }
515
70a93198 516 Double_t w = TMath::Max(0.,logWeight+TMath::Log(fEnergyList[iDigit]/fAmp ) ) ;
ff1e7e2f 517
70a93198 518 dxx += w * etai * etai ;
519 x += w * etai ;
520 dzz += w * phii * phii ;
521 z += w * phii ;
1963b290 522
ff1e7e2f 523 dxz += w * etai * phii ;
1963b290 524
70a93198 525 wtot += w ;
526 }
ff1e7e2f 527
70a93198 528 if ( wtot > 0 ) {
529 dxx /= wtot ;
530 x /= wtot ;
531 dxx -= x * x ;
532 dzz /= wtot ;
533 z /= wtot ;
534 dzz -= z * z ;
535 dxz /= wtot ;
536 dxz -= x * z ;
ab48128d 537
70a93198 538 fLambda[0] = 0.5 * (dxx + dzz) + TMath::Sqrt( 0.25 * (dxx - dzz) * (dxx - dzz) + dxz * dxz ) ;
539 if(fLambda[0] > 0)
540 fLambda[0] = TMath::Sqrt(fLambda[0]) ;
541 else
542 fLambda[0] = 0;
543
544 fLambda[1] = 0.5 * (dxx + dzz) - TMath::Sqrt( 0.25 * (dxx - dzz) * (dxx - dzz) + dxz * dxz ) ;
ff1e7e2f 545
70a93198 546 if(fLambda[1] > 0) //To avoid exception if numerical errors lead to negative lambda.
547 fLambda[1] = TMath::Sqrt(fLambda[1]) ;
548 else
549 fLambda[1]= 0. ;
550 } else {
551 fLambda[0]= 0. ;
552 fLambda[1]= 0. ;
ab48128d 553 }
ff1e7e2f 554
1963b290 555 // printf("Evalaxis: lambdas = %f,%f", fLambda[0],fLambda[1]) ;
ff1e7e2f 556
ab48128d 557}
558
559//______________________________________________________________________________
560void AliEMCALRecPoint::EvalPrimaries(TClonesArray * digits)
561{
562 // Constructs the list of primary particles (tracks) which have contributed to this RecPoint
563
564 AliEMCALDigit * digit ;
565 Int_t * tempo = new Int_t[fMaxTrack] ;
566
567 Int_t index ;
568 for ( index = 0 ; index < GetDigitsMultiplicity() ; index++ ) { // all digits
569 digit = dynamic_cast<AliEMCALDigit *>(digits->At( fDigitsList[index] )) ;
570 Int_t nprimaries = digit->GetNprimary() ;
5c0368b8 571 if ( nprimaries == 0 ) continue ;
ab48128d 572 Int_t * newprimaryarray = new Int_t[nprimaries] ;
573 Int_t ii ;
574 for ( ii = 0 ; ii < nprimaries ; ii++)
575 newprimaryarray[ii] = digit->GetPrimary(ii+1) ;
576
577 Int_t jndex ;
578 for ( jndex = 0 ; jndex < nprimaries ; jndex++ ) { // all primaries in digit
579 if ( fMulTrack > fMaxTrack ) {
f792c312 580 fMulTrack = fMaxTrack ;
9859bfc0 581 Error("GetNprimaries", "increase fMaxTrack ") ;
ab48128d 582 break ;
583 }
584 Int_t newprimary = newprimaryarray[jndex] ;
585 Int_t kndex ;
586 Bool_t already = kFALSE ;
587 for ( kndex = 0 ; kndex < fMulTrack ; kndex++ ) { //check if not already stored
588 if ( newprimary == tempo[kndex] ){
589 already = kTRUE ;
590 break ;
591 }
592 } // end of check
5c0368b8 593 if ( !already && (fMulTrack < fMaxTrack)) { // store it
ab48128d 594 tempo[fMulTrack] = newprimary ;
595 fMulTrack++ ;
596 } // store it
597 } // all primaries in digit
f792c312 598 delete [] newprimaryarray ;
ab48128d 599 } // all digits
600
601
602 fTracksList = new Int_t[fMulTrack] ;
603 for(index = 0; index < fMulTrack; index++)
604 fTracksList[index] = tempo[index] ;
605
f792c312 606 delete [] tempo ;
ab48128d 607
608}
7ee5c5be 609
87cdc3be 610//______________________________________________________________________________
611void AliEMCALRecPoint::EvalParents(TClonesArray * digits)
612{
613 // Constructs the list of parent particles (tracks) which have contributed to this RecPoint
614
615 AliEMCALDigit * digit ;
616 Int_t * tempo = new Int_t[fMaxParent] ;
617
618 Int_t index ;
619 for ( index = 0 ; index < GetDigitsMultiplicity() ; index++ ) { // all digits
620 digit = dynamic_cast<AliEMCALDigit *>(digits->At( fDigitsList[index] )) ;
621 Int_t nparents = digit->GetNiparent() ;
5c0368b8 622 if ( nparents == 0 ) continue ;
87cdc3be 623 Int_t * newparentarray = new Int_t[nparents] ;
624 Int_t ii ;
625 for ( ii = 0 ; ii < nparents ; ii++)
626 newparentarray[ii] = digit->GetIparent(ii+1) ;
627
628 Int_t jndex ;
629 for ( jndex = 0 ; jndex < nparents ; jndex++ ) { // all primaries in digit
630 if ( fMulParent > fMaxParent ) {
631 fMulTrack = - 1 ;
632 Error("GetNiparent", "increase fMaxParent") ;
633 break ;
634 }
635 Int_t newparent = newparentarray[jndex] ;
636 Int_t kndex ;
637 Bool_t already = kFALSE ;
f1d429fd 638 for ( kndex = 0 ; kndex < fMulParent ; kndex++ ) { //check if not already stored
87cdc3be 639 if ( newparent == tempo[kndex] ){
640 already = kTRUE ;
641 break ;
642 }
643 } // end of check
5c0368b8 644 if ( !already && (fMulTrack < fMaxTrack)) { // store it
87cdc3be 645 tempo[fMulParent] = newparent ;
646 fMulParent++ ;
647 } // store it
648 } // all parents in digit
27e2a47c 649 delete [] newparentarray ;
87cdc3be 650 } // all digits
651
27e2a47c 652 if (fMulParent>0) {
653 fParentsList = new Int_t[fMulParent] ;
654 for(index = 0; index < fMulParent; index++)
655 fParentsList[index] = tempo[index] ;
656 }
87cdc3be 657
27e2a47c 658 delete [] tempo ;
87cdc3be 659
660}
661
ab48128d 662//____________________________________________________________________________
70a93198 663void AliEMCALRecPoint::GetLocalPosition(TVector3 & lpos) const
664{
665 // returns the position of the cluster in the local reference system of ALICE
666 // X = eta, Y = phi, Z = r (a constant for the EMCAL)
667
668 lpos.SetX(fLocPos.X()) ;
669 lpos.SetY(fLocPos.Y()) ;
670 lpos.SetZ(fLocPos.Z()) ;
671}
672
673//____________________________________________________________________________
ab48128d 674void AliEMCALRecPoint::GetGlobalPosition(TVector3 & gpos) const
675{
676 // returns the position of the cluster in the global reference system of ALICE
70a93198 677 // These are now the Cartesian X, Y and Z
678
679 AliEMCALGeometry * geom = (AliEMCALGetter::Instance())->EMCALGeometry();
680 Int_t absid = geom->TowerIndexFromEtaPhi(fLocPos.X(), TMath::RadToDeg()*fLocPos.Y());
681 geom->XYZFromIndex(absid, gpos);
682}
683
684//____________________________________________________________________________
685Float_t AliEMCALRecPoint::GetMaximalEnergy(void) const
686{
687 // Finds the maximum energy in the cluster
ab48128d 688
70a93198 689 Float_t menergy = 0. ;
690
691 Int_t iDigit;
692
693 for(iDigit=0; iDigit<fMulDigit; iDigit++) {
694
695 if(fEnergyList[iDigit] > menergy)
696 menergy = fEnergyList[iDigit] ;
697 }
698 return menergy ;
ab48128d 699}
700
aad8e277 701//____________________________________________________________________________
70a93198 702Int_t AliEMCALRecPoint::GetMultiplicityAtLevel(Float_t H) const
aad8e277 703{
70a93198 704 // Calculates the multiplicity of digits with energy larger than H*energy
705
706 Int_t multipl = 0 ;
707 Int_t iDigit ;
708 for(iDigit=0; iDigit<fMulDigit; iDigit++) {
709
710 if(fEnergyList[iDigit] > H * fAmp)
711 multipl++ ;
712 }
713 return multipl ;
714}
715
716//____________________________________________________________________________
717Int_t AliEMCALRecPoint::GetNumberOfLocalMax(AliEMCALDigit ** maxAt, Float_t * maxAtEnergy,
718 Float_t locMaxCut,TClonesArray * digits) const
719{
720 // Calculates the number of local maxima in the cluster using fLocalMaxCut as the minimum
721 // energy difference between two local maxima
722
723 AliEMCALDigit * digit ;
724 AliEMCALDigit * digitN ;
725
726 Int_t iDigitN ;
727 Int_t iDigit ;
728
729 for(iDigit = 0; iDigit < fMulDigit; iDigit++)
730 maxAt[iDigit] = (AliEMCALDigit*) digits->At(fDigitsList[iDigit]) ;
731
732 for(iDigit = 0 ; iDigit < fMulDigit; iDigit++) {
733 if(maxAt[iDigit]) {
734 digit = maxAt[iDigit] ;
735
736 for(iDigitN = 0; iDigitN < fMulDigit; iDigitN++) {
737 digitN = (AliEMCALDigit *) digits->At(fDigitsList[iDigitN]) ;
738
739 if ( AreNeighbours(digit, digitN) ) {
740 if (fEnergyList[iDigit] > fEnergyList[iDigitN] ) {
741 maxAt[iDigitN] = 0 ;
742 // but may be digit too is not local max ?
743 if(fEnergyList[iDigit] < fEnergyList[iDigitN] + locMaxCut)
744 maxAt[iDigit] = 0 ;
745 }
746 else {
747 maxAt[iDigit] = 0 ;
748 // but may be digitN too is not local max ?
749 if(fEnergyList[iDigit] > fEnergyList[iDigitN] - locMaxCut)
750 maxAt[iDigitN] = 0 ;
751 }
752 } // if Areneighbours
753 } // while digitN
754 } // slot not empty
755 } // while digit
756
757 iDigitN = 0 ;
758 for(iDigit = 0; iDigit < fMulDigit; iDigit++) {
759 if(maxAt[iDigit] ){
760 maxAt[iDigitN] = maxAt[iDigit] ;
761 maxAtEnergy[iDigitN] = fEnergyList[iDigit] ;
762 iDigitN++ ;
763 }
764 }
765 return iDigitN ;
766}
767//____________________________________________________________________________
768void AliEMCALRecPoint::EvalTime(TClonesArray * digits){
769 // time is set to the time of the digit with the maximum energy
770
771 Float_t maxE = 0;
772 Int_t maxAt = 0;
773 for(Int_t idig=0; idig < fMulDigit; idig++){
774 if(fEnergyList[idig] > maxE){
775 maxE = fEnergyList[idig] ;
776 maxAt = idig;
777 }
778 }
779 fTime = ((AliEMCALDigit*) digits->At(fDigitsList[maxAt]))->GetTime() ;
aad8e277 780
aad8e277 781}
ab48128d 782
783//______________________________________________________________________________
784void AliEMCALRecPoint::Paint(Option_t *)
785{
786 // Paint this ALiRecPoint as a TMarker with its current attributes
787
788 TVector3 pos(0.,0.,0.) ;
789 GetLocalPosition(pos) ;
790 Coord_t x = pos.X() ;
791 Coord_t y = pos.Z() ;
792 Color_t markercolor = 1 ;
793 Size_t markersize = 1. ;
794 Style_t markerstyle = 5 ;
795
796 if (!gPad->IsBatch()) {
797 gVirtualX->SetMarkerColor(markercolor) ;
798 gVirtualX->SetMarkerSize (markersize) ;
799 gVirtualX->SetMarkerStyle(markerstyle) ;
800 }
801 gPad->SetAttMarkerPS(markercolor,markerstyle,markersize) ;
802 gPad->PaintPolyMarker(1,&x,&y,"") ;
803}
70a93198 804
805//______________________________________________________________________________
806Float_t AliEMCALRecPoint::EtaToTheta(Float_t arg) const
807{
808 //Converts Theta (Radians) to Eta(Radians)
809 return (2.*TMath::ATan(TMath::Exp(-arg)));
810}
811
812//______________________________________________________________________________
813Float_t AliEMCALRecPoint::ThetaToEta(Float_t arg) const
814{
815 //Converts Eta (Radians) to Theta(Radians)
816 return (-1 * TMath::Log(TMath::Tan(0.5 * arg)));
817}
261b1065 818
819//____________________________________________________________________________
820void AliEMCALRecPoint::Print(Option_t *) const
821{
822 // Print the list of digits belonging to the cluster
823
824 TString message ;
825 message = "AliPHOSEmcRecPoint:\n" ;
826 message += " digits # = " ;
827 Info("Print", message.Data()) ;
828
829 Int_t iDigit;
830 for(iDigit=0; iDigit<fMulDigit; iDigit++)
831 printf(" %d ", fDigitsList[iDigit] ) ;
832
833 Info("Print", " Energies = ") ;
834 for(iDigit=0; iDigit<fMulDigit; iDigit++)
835 printf(" %f ", fEnergyList[iDigit] ) ;
836 printf("\n") ;
837 Info("Print", " Primaries ") ;
838 for(iDigit = 0;iDigit < fMulTrack; iDigit++)
839 printf(" %d ", fTracksList[iDigit]) ;
840 printf("\n") ;
841 message = " Multiplicity = %d" ;
842 message += " Cluster Energy = %f" ;
843 message += " Core energy = %f" ;
844 message += " Core radius = %f" ;
845 message += " Number of primaries %d" ;
846 message += " Stored at position %d" ;
847
848 Info("Print", message.Data(), fMulDigit, fAmp, fCoreEnergy, fCoreRadius, fMulTrack, GetIndexInList() ) ;
849}