1 /**************************************************************************
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4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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14 **************************************************************************/
16 //_________________________________________________________________________
17 // Reconstructed Points for the EMCAL
18 // A RecPoint is a cluster of digits
19 //*-- Author: Yves Schutz (SUBATECH)
20 //*-- Author: Dmitri Peressounko (RRC KI & SUBATECH)
21 //*-- Author: Heather Gray (LBL) merged AliEMCALRecPoint and AliEMCALTowerRecPoint 02/04
23 // --- ROOT system ---
28 #include <TClonesArray.h>
31 // --- Standard library ---
33 // --- AliRoot header files ---
34 //#include "AliGenerator.h"
36 #include "AliRunLoader.h"
39 #include "AliEMCALLoader.h"
40 #include "AliEMCALGeometry.h"
41 #include "AliEMCALHit.h"
42 #include "AliEMCALDigit.h"
43 #include "AliEMCALRecPoint.h"
45 ClassImp(AliEMCALRecPoint)
47 //____________________________________________________________________________
48 AliEMCALRecPoint::AliEMCALRecPoint()
58 fCoreRadius(10), //HG check this
68 // fLocPos.SetX(1.e+6) ; //Local position should be evaluated
70 AliRunLoader *rl = AliRunLoader::GetRunLoader();
71 fGeomPtr = dynamic_cast<AliEMCAL*>(rl->GetAliRun()->GetDetector("EMCAL"))->GetGeometry();
72 //fGeomPtr = AliEMCALGeometry::GetInstance();
73 fGeomPtr->GetTransformationForSM(); // Global <-> Local
76 //____________________________________________________________________________
77 AliEMCALRecPoint::AliEMCALRecPoint(const char * opt)
87 fCoreRadius(10), //HG check this
97 fParentsList = new Int_t[fMaxParent];
99 //fLocPos.SetX(1.e+6) ; //Local position should be evaluated
100 //fGeomPtr = AliEMCALGeometry::GetInstance();
101 AliRunLoader *rl = AliRunLoader::GetRunLoader();
102 fGeomPtr = dynamic_cast<AliEMCAL*>(rl->GetAliRun()->GetDetector("EMCAL"))->GetGeometry();
103 fGeomPtr->GetTransformationForSM(); // Global <-> Local
106 //____________________________________________________________________________
107 AliEMCALRecPoint::AliEMCALRecPoint(const AliEMCALRecPoint & rp)
109 fGeomPtr(rp.fGeomPtr),
110 fClusterType(rp.fClusterType),
111 fCoreEnergy(rp.fCoreEnergy),
112 fDispersion(rp.fDispersion),
117 fCoreRadius(rp.fCoreRadius),
118 fMulParent(rp.fMulParent),
119 fMaxParent(rp.fMaxParent),
121 fSuperModuleNumber(rp.fSuperModuleNumber)
124 fLambda[0] = rp.fLambda[0];
125 fLambda[1] = rp.fLambda[1];
127 fEnergyList = new Float_t[rp.fMulDigit];
128 fTimeList = new Float_t[rp.fMulDigit];
129 fAbsIdList = new Int_t[rp.fMulDigit];
130 for(Int_t i = 0; i < rp.fMulDigit; i++) {
131 fEnergyList[i] = rp.fEnergyList[i];
132 fTimeList[i] = rp.fTimeList[i];
133 fAbsIdList[i] = rp.fAbsIdList[i];
135 fParentsList = new Int_t[rp.fMulParent];
136 for(Int_t i = 0; i < rp.fMulParent; i++) fParentsList[i] = rp.fParentsList[i];
139 //____________________________________________________________________________
140 AliEMCALRecPoint::~AliEMCALRecPoint()
144 delete[] fEnergyList ;
148 delete[] fAbsIdList ;
150 delete[] fParentsList;
153 //____________________________________________________________________________
154 void AliEMCALRecPoint::AddDigit(AliEMCALDigit & digit, Float_t Energy)
156 // Adds a digit to the RecPoint
157 // and accumulates the total amplitude and the multiplicity
160 fEnergyList = new Float_t[fMaxDigit];
162 fTimeList = new Float_t[fMaxDigit];
163 if(fAbsIdList == 0) {
164 fAbsIdList = new Int_t[fMaxDigit];
165 fSuperModuleNumber = fGeomPtr->GetSuperModuleNumber(digit.GetId());
168 if ( fMulDigit >= fMaxDigit ) { // increase the size of the lists
170 Int_t * tempo = new Int_t[fMaxDigit];
171 Float_t * tempoE = new Float_t[fMaxDigit];
172 Float_t * tempoT = new Float_t[fMaxDigit];
173 Int_t * tempoId = new Int_t[fMaxDigit];
176 for ( index = 0 ; index < fMulDigit ; index++ ){
177 tempo[index] = fDigitsList[index] ;
178 tempoE[index] = fEnergyList[index] ;
179 tempoT[index] = fTimeList[index] ;
180 tempoId[index] = fAbsIdList[index] ;
183 delete [] fDigitsList ;
184 fDigitsList = new Int_t[fMaxDigit];
186 delete [] fEnergyList ;
187 fEnergyList = new Float_t[fMaxDigit];
189 delete [] fTimeList ;
190 fTimeList = new Float_t[fMaxDigit];
192 delete [] fAbsIdList ;
193 fAbsIdList = new Int_t[fMaxDigit];
195 for ( index = 0 ; index < fMulDigit ; index++ ){
196 fDigitsList[index] = tempo[index] ;
197 fEnergyList[index] = tempoE[index] ;
198 fTimeList[index] = tempoT[index] ;
199 fAbsIdList[index] = tempoId[index] ;
208 fDigitsList[fMulDigit] = digit.GetIndexInList() ;
209 fEnergyList[fMulDigit] = Energy ;
210 fTimeList[fMulDigit] = digit.GetTime() ;
211 fAbsIdList[fMulDigit] = digit.GetId();
216 //____________________________________________________________________________
217 Bool_t AliEMCALRecPoint::AreNeighbours(AliEMCALDigit * digit1, AliEMCALDigit * digit2 ) const
219 // Tells if (true) or not (false) two digits are neighbours
220 // A neighbour is defined as being two digits which share a corner
222 static Bool_t areNeighbours = kFALSE ;
223 static Int_t nSupMod=0, nTower=0, nIphi=0, nIeta=0;
224 static int nSupMod1=0, nTower1=0, nIphi1=0, nIeta1=0;
225 static Int_t relid1[2] , relid2[2] ; // ieta, iphi
226 static Int_t rowdiff=0, coldiff=0;
228 areNeighbours = kFALSE ;
230 fGeomPtr->GetCellIndex(digit1->GetId(), nSupMod,nTower,nIphi,nIeta);
231 fGeomPtr->GetCellPhiEtaIndexInSModule(nSupMod,nTower,nIphi,nIeta, relid1[0],relid1[1]);
233 fGeomPtr->GetCellIndex(digit2->GetId(), nSupMod1,nTower1,nIphi1,nIeta1);
234 fGeomPtr->GetCellPhiEtaIndexInSModule(nSupMod1,nTower1,nIphi1,nIeta1, relid2[0],relid2[1]);
236 rowdiff = TMath::Abs( relid1[0] - relid2[0] ) ;
237 coldiff = TMath::Abs( relid1[1] - relid2[1] ) ;
239 if (( coldiff <= 1 ) && ( rowdiff <= 1 ) && (coldiff + rowdiff > 0))
240 areNeighbours = kTRUE ;
242 return areNeighbours;
245 //____________________________________________________________________________
246 Int_t AliEMCALRecPoint::Compare(const TObject * obj) const
248 // Compares two RecPoints according to their position in the EMCAL modules
250 Float_t delta = 1 ; //Width of "Sorting row". If you change this
251 //value (what is senseless) change as well delta in
252 //AliEMCALTrackSegmentMakerv* and other RecPoints...
255 AliEMCALRecPoint * clu = (AliEMCALRecPoint *)obj ;
258 GetLocalPosition(locpos1);
260 clu->GetLocalPosition(locpos2);
262 Int_t rowdif = (Int_t)(TMath::Ceil(locpos1.X()/delta)-TMath::Ceil(locpos2.X()/delta)) ;
267 else if(locpos1.Y()>locpos2.Y())
275 //____________________________________________________________________________
276 Int_t AliEMCALRecPoint::DistancetoPrimitive(Int_t px, Int_t py)
278 // Compute distance from point px,py to a AliEMCALRecPoint considered as a Tmarker
279 // Compute the closest distance of approach from point px,py to this marker.
280 // The distance is computed in pixels units.
281 // HG Still need to update -> Not sure what this should achieve
283 TVector3 pos(0.,0.,0.) ;
284 GetLocalPosition(pos) ;
285 Float_t x = pos.X() ;
286 Float_t y = pos.Y() ;
287 const Int_t kMaxDiff = 10;
288 Int_t pxm = gPad->XtoAbsPixel(x);
289 Int_t pym = gPad->YtoAbsPixel(y);
290 Int_t dist = (px-pxm)*(px-pxm) + (py-pym)*(py-pym);
292 if (dist > kMaxDiff) return 9999;
296 //___________________________________________________________________________
297 void AliEMCALRecPoint::Draw(Option_t *option)
299 // Draw this AliEMCALRecPoint with its current attributes
304 //______________________________________________________________________________
305 void AliEMCALRecPoint::ExecuteEvent(Int_t /*event*/, Int_t, Int_t)
307 // Execute action corresponding to one event
308 // This member function is called when a AliEMCALRecPoint is clicked with the locator
310 // If Left button is clicked on AliEMCALRecPoint, the digits are switched on
311 // and switched off when the mouse button is released.
313 // static Int_t pxold, pyold;
315 /* static TGraph * digitgraph = 0 ;
316 static TPaveText* clustertext = 0 ;
318 if (!gPad->IsEditable()) return;
324 AliEMCALDigit * digit ;
325 AliEMCALGeometry * emcalgeom = (AliEMCALGetter::Instance())->EMCALGeometry() ;
330 const Int_t kMulDigit=AliEMCALRecPoint::GetDigitsMultiplicity() ;
331 Float_t * xi = new Float_t [kMulDigit] ;
332 Float_t * zi = new Float_t [kMulDigit] ;
334 for(iDigit = 0; iDigit < kMulDigit; iDigit++) {
335 Fatal("AliEMCALRecPoint::ExecuteEvent", " -> Something wrong with the code");
336 digit = 0 ; //dynamic_cast<AliEMCALDigit *>((fDigitsList)[iDigit]);
337 emcalgeom->AbsToRelNumbering(digit->GetId(), relid) ;
338 emcalgeom->PosInAlice(relid, xi[iDigit], zi[iDigit]) ;
342 digitgraph = new TGraph(fMulDigit,xi,zi);
343 digitgraph-> SetMarkerStyle(5) ;
344 digitgraph-> SetMarkerSize(1.) ;
345 digitgraph-> SetMarkerColor(1) ;
346 digitgraph-> Draw("P") ;
350 TVector3 pos(0.,0.,0.) ;
351 GetLocalPosition(pos) ;
352 clustertext = new TPaveText(pos.X()-10,pos.Z()+10,pos.X()+50,pos.Z()+35,"") ;
355 sprintf(line1,"Energy=%1.2f GeV",GetEnergy()) ;
356 sprintf(line2,"%d Digits",GetDigitsMultiplicity()) ;
357 clustertext ->AddText(line1) ;
358 clustertext ->AddText(line2) ;
359 clustertext ->Draw("");
383 //____________________________________________________________________________
384 void AliEMCALRecPoint::EvalAll(Float_t logWeight,TClonesArray * digits)
386 // Evaluates all shower parameters
388 EvalLocalPosition(logWeight, digits) ;
389 // printf("eval position done\n");
390 EvalElipsAxis(logWeight, digits) ;
391 // printf("eval axis done\n");
392 EvalDispersion(logWeight, digits) ;
393 // printf("eval dispersion done\n");
394 //EvalCoreEnergy(logWeight, digits);
395 // printf("eval energy done\n");
397 // printf("eval time done\n");
399 EvalPrimaries(digits) ;
400 // printf("eval pri done\n");
402 // printf("eval parent done\n");
405 //____________________________________________________________________________
406 void AliEMCALRecPoint::EvalDispersion(Float_t logWeight, TClonesArray * digits)
408 // Calculates the dispersion of the shower at the origin of the RecPoint
410 Double_t d = 0., wtot = 0., w = 0., xyzi[3], diff=0.;
411 Int_t iDigit=0, nstat=0, i=0;
412 AliEMCALDigit * digit ;
414 // Calculates the centre of gravity in the local EMCAL-module coordinates
416 EvalLocalPosition(logWeight, digits) ;
418 // Calculates the dispersion in coordinates
419 for(iDigit=0; iDigit < fMulDigit; iDigit++) {
420 digit = (AliEMCALDigit *) digits->At(fDigitsList[iDigit]) ;
422 fGeomPtr->RelPosCellInSModule(digit->GetId(), xyzi[0], xyzi[1], xyzi[2]);
423 w = TMath::Max(0.,logWeight+TMath::Log(fEnergyList[iDigit]/fAmp ) ) ;
428 for(i=0; i<3; i++ ) {
429 diff = xyzi[i] - double(fLocPos[i]);
435 if ( wtot > 0 && nstat>1) d /= wtot ;
438 fDispersion = TMath::Sqrt(d) ;
441 //____________________________________________________________________________
442 void AliEMCALRecPoint::EvalLocalPosition(Float_t logWeight, TClonesArray * digits)
444 // Calculates the center of gravity in the local EMCAL-module coordinates
445 // Info("Print", " logWeight %f : cluster energy %f ", logWeight, fAmp); // for testing
447 AliEMCALDigit * digit;
449 Double_t clXYZ[3]={0.,0.,0.}, clRmsXYZ[3]={0.,0.,0.}, xyzi[3], wtot=0., w=0.;
451 for(Int_t iDigit=0; iDigit<fMulDigit; iDigit++) {
452 digit = dynamic_cast<AliEMCALDigit *>(digits->At(fDigitsList[iDigit])) ;
454 fGeomPtr->RelPosCellInSModule(digit->GetId(), xyzi[0], xyzi[1], xyzi[2]);
455 // printf(" Id %i : Local x,y,z %f %f %f \n", digit->GetId(), xyzi[0], xyzi[1], xyzi[2]);
457 if(logWeight > 0.0) w = TMath::Max( 0., logWeight + TMath::Log( fEnergyList[iDigit] / fAmp ));
458 else w = fEnergyList[iDigit]; // just energy
463 for(i=0; i<3; i++ ) {
464 clXYZ[i] += (w*xyzi[i]);
465 clRmsXYZ[i] += (w*xyzi[i]*xyzi[i]);
469 // cout << " wtot " << wtot << endl;
471 // xRMS = TMath::Sqrt(x2m - xMean*xMean);
472 for(i=0; i<3; i++ ) {
475 clRmsXYZ[i] /= (wtot*wtot);
476 clRmsXYZ[i] = clRmsXYZ[i] - clXYZ[i]*clXYZ[i];
477 if(clRmsXYZ[i] > 0.0) {
478 clRmsXYZ[i] = TMath::Sqrt(clRmsXYZ[i]);
479 } else clRmsXYZ[i] = 0;
480 } else clRmsXYZ[i] = 0;
483 for(i=0; i<3; i++ ) {
484 clXYZ[i] = clRmsXYZ[i] = -1.;
488 fLocPos.SetX(clXYZ[0]);
489 fLocPos.SetY(clXYZ[1]);
490 fLocPos.SetZ(clXYZ[2]);
493 // printf("EvalLocalPosition: eta,phi,r = %f,%f,%f", fLocPos.X(), fLocPos.Y(), fLocPos.Z()) ;
494 fLocPosM = 0 ; // covariance matrix
497 //void AliEMCALRecPoint::EvalLocalPositionSimple()
498 //{ // Weight is proportional of cell energy
501 //______________________________________________________________________________
502 void AliEMCALRecPoint::EvalCoreEnergy(Float_t logWeight, TClonesArray * digits)
504 // This function calculates energy in the core,
505 // i.e. within a radius rad = fCoreEnergy around the center. Beyond this radius
506 // in accordance with shower profile the energy deposition
507 // should be less than 2%
509 AliEMCALDigit * digit ;
510 const Float_t kDeg2Rad = TMath::DegToRad() ;
514 if (!fLocPos.Mag()) {
515 EvalLocalPosition(logWeight, digits);
518 for(iDigit=0; iDigit < fMulDigit; iDigit++) {
519 digit = (AliEMCALDigit *) ( digits->At(fDigitsList[iDigit]) ) ;
523 //fGeomPtr->PosInAlice(digit->GetId(), ieta, iphi);
524 fGeomPtr->EtaPhiFromIndex(digit->GetId(),ieta, iphi) ;
525 iphi = iphi * kDeg2Rad;
527 Float_t distance = TMath::Sqrt((ieta-fLocPos.X())*(ieta-fLocPos.X())+(iphi-fLocPos.Y())*(iphi-fLocPos.Y())) ;
528 if(distance < fCoreRadius)
529 fCoreEnergy += fEnergyList[iDigit] ;
533 //____________________________________________________________________________
534 void AliEMCALRecPoint::EvalElipsAxis(Float_t logWeight,TClonesArray * digits)
536 // Calculates the axis of the shower ellipsoid in eta and phi
545 const Float_t kDeg2Rad = TMath::DegToRad();
546 AliEMCALDigit * digit ;
548 TString gn(fGeomPtr->GetName());
552 for(iDigit=0; iDigit<fMulDigit; iDigit++) {
553 digit = (AliEMCALDigit *) digits->At(fDigitsList[iDigit]) ;
556 if(gn.Contains("SHISH")) { // have to be change - Feb 28, 2006
557 //copied for shish-kebab geometry, ieta,iphi is cast as float as eta,phi conversion
558 // for this geometry does not exist
559 int nSupMod=0, nTower=0, nIphi=0, nIeta=0;
561 fGeomPtr->GetCellIndex(digit->GetId(), nSupMod,nTower,nIphi,nIeta);
562 fGeomPtr->GetCellPhiEtaIndexInSModule(nSupMod,nTower,nIphi,nIeta, iphi,ieta);
566 fGeomPtr->EtaPhiFromIndex(digit->GetId(), etai, phii);
567 phii = phii * kDeg2Rad;
570 Double_t w = TMath::Max(0.,logWeight+TMath::Log(fEnergyList[iDigit]/fAmp ) ) ;
572 dxx += w * etai * etai ;
574 dzz += w * phii * phii ;
577 dxz += w * etai * phii ;
592 fLambda[0] = 0.5 * (dxx + dzz) + TMath::Sqrt( 0.25 * (dxx - dzz) * (dxx - dzz) + dxz * dxz ) ;
594 fLambda[0] = TMath::Sqrt(fLambda[0]) ;
598 fLambda[1] = 0.5 * (dxx + dzz) - TMath::Sqrt( 0.25 * (dxx - dzz) * (dxx - dzz) + dxz * dxz ) ;
600 if(fLambda[1] > 0) //To avoid exception if numerical errors lead to negative lambda.
601 fLambda[1] = TMath::Sqrt(fLambda[1]) ;
609 // printf("Evalaxis: lambdas = %f,%f", fLambda[0],fLambda[1]) ;
613 //______________________________________________________________________________
614 void AliEMCALRecPoint::EvalPrimaries(TClonesArray * digits)
616 // Constructs the list of primary particles (tracks) which have contributed to this RecPoint
618 AliEMCALDigit * digit ;
619 Int_t * tempo = new Int_t[fMaxTrack] ;
622 for ( index = 0 ; index < GetDigitsMultiplicity() ; index++ ) { // all digits
623 digit = dynamic_cast<AliEMCALDigit *>(digits->At( fDigitsList[index] )) ;
624 Int_t nprimaries = digit->GetNprimary() ;
625 if ( nprimaries == 0 ) continue ;
626 Int_t * newprimaryarray = new Int_t[nprimaries] ;
628 for ( ii = 0 ; ii < nprimaries ; ii++)
629 newprimaryarray[ii] = digit->GetPrimary(ii+1) ;
632 for ( jndex = 0 ; jndex < nprimaries ; jndex++ ) { // all primaries in digit
633 if ( fMulTrack > fMaxTrack ) {
634 fMulTrack = fMaxTrack ;
635 Error("GetNprimaries", "increase fMaxTrack ") ;
638 Int_t newprimary = newprimaryarray[jndex] ;
640 Bool_t already = kFALSE ;
641 for ( kndex = 0 ; kndex < fMulTrack ; kndex++ ) { //check if not already stored
642 if ( newprimary == tempo[kndex] ){
647 if ( !already && (fMulTrack < fMaxTrack)) { // store it
648 tempo[fMulTrack] = newprimary ;
651 } // all primaries in digit
652 delete [] newprimaryarray ;
656 fTracksList = new Int_t[fMulTrack] ;
657 for(index = 0; index < fMulTrack; index++)
658 fTracksList[index] = tempo[index] ;
664 //______________________________________________________________________________
665 void AliEMCALRecPoint::EvalParents(TClonesArray * digits)
667 // Constructs the list of parent particles (tracks) which have contributed to this RecPoint
669 AliEMCALDigit * digit ;
670 Int_t * tempo = new Int_t[fMaxParent] ;
673 for ( index = 0 ; index < GetDigitsMultiplicity() ; index++ ) { // all digits
674 digit = dynamic_cast<AliEMCALDigit *>(digits->At( fDigitsList[index] )) ;
675 Int_t nparents = digit->GetNiparent() ;
676 if ( nparents == 0 ) continue ;
677 Int_t * newparentarray = new Int_t[nparents] ;
679 for ( ii = 0 ; ii < nparents ; ii++)
680 newparentarray[ii] = digit->GetIparent(ii+1) ;
683 for ( jndex = 0 ; jndex < nparents ; jndex++ ) { // all primaries in digit
684 if ( fMulParent > fMaxParent ) {
686 Error("GetNiparent", "increase fMaxParent") ;
689 Int_t newparent = newparentarray[jndex] ;
691 Bool_t already = kFALSE ;
692 for ( kndex = 0 ; kndex < fMulParent ; kndex++ ) { //check if not already stored
693 if ( newparent == tempo[kndex] ){
698 if ( !already && (fMulTrack < fMaxTrack)) { // store it
699 tempo[fMulParent] = newparent ;
702 } // all parents in digit
703 delete [] newparentarray ;
707 fParentsList = new Int_t[fMulParent] ;
708 for(index = 0; index < fMulParent; index++)
709 fParentsList[index] = tempo[index] ;
716 //____________________________________________________________________________
717 void AliEMCALRecPoint::GetLocalPosition(TVector3 & lpos) const
719 // returns the position of the cluster in the local reference system of ALICE
721 lpos.SetX(fLocPos.X()) ;
722 lpos.SetY(fLocPos.Y()) ;
723 lpos.SetZ(fLocPos.Z()) ;
726 //____________________________________________________________________________
727 void AliEMCALRecPoint::GetGlobalPosition(TVector3 & gpos) const
729 // returns the position of the cluster in the global reference system of ALICE
730 // These are now the Cartesian X, Y and Z
731 // cout<<" geom "<<geom<<endl;
732 fGeomPtr->GetGlobal(fLocPos, gpos, fSuperModuleNumber);
735 //____________________________________________________________________________
736 Float_t AliEMCALRecPoint::GetMaximalEnergy(void) const
738 // Finds the maximum energy in the cluster
740 Float_t menergy = 0. ;
744 for(iDigit=0; iDigit<fMulDigit; iDigit++) {
746 if(fEnergyList[iDigit] > menergy)
747 menergy = fEnergyList[iDigit] ;
752 //____________________________________________________________________________
753 Int_t AliEMCALRecPoint::GetMultiplicityAtLevel(Float_t H) const
755 // Calculates the multiplicity of digits with energy larger than H*energy
759 for(iDigit=0; iDigit<fMulDigit; iDigit++) {
761 if(fEnergyList[iDigit] > H * fAmp)
767 //____________________________________________________________________________
768 Int_t AliEMCALRecPoint::GetNumberOfLocalMax(AliEMCALDigit ** maxAt, Float_t * maxAtEnergy,
769 Float_t locMaxCut,TClonesArray * digits) const
771 // Calculates the number of local maxima in the cluster using fLocalMaxCut as the minimum
772 // energy difference between two local maxima
774 AliEMCALDigit * digit ;
775 AliEMCALDigit * digitN ;
780 for(iDigit = 0; iDigit < fMulDigit; iDigit++)
781 maxAt[iDigit] = (AliEMCALDigit*) digits->At(fDigitsList[iDigit]) ;
783 for(iDigit = 0 ; iDigit < fMulDigit; iDigit++) {
785 digit = maxAt[iDigit] ;
787 for(iDigitN = 0; iDigitN < fMulDigit; iDigitN++) {
788 digitN = (AliEMCALDigit *) digits->At(fDigitsList[iDigitN]) ;
790 if ( AreNeighbours(digit, digitN) ) {
791 if (fEnergyList[iDigit] > fEnergyList[iDigitN] ) {
793 // but may be digit too is not local max ?
794 if(fEnergyList[iDigit] < fEnergyList[iDigitN] + locMaxCut)
799 // but may be digitN too is not local max ?
800 if(fEnergyList[iDigit] > fEnergyList[iDigitN] - locMaxCut)
803 } // if Areneighbours
809 for(iDigit = 0; iDigit < fMulDigit; iDigit++) {
811 maxAt[iDigitN] = maxAt[iDigit] ;
812 maxAtEnergy[iDigitN] = fEnergyList[iDigit] ;
819 //____________________________________________________________________________
820 Int_t AliEMCALRecPoint::GetPrimaryIndex() const
822 // Get the primary track index in TreeK which deposits the most energy
823 // in Digits which forms RecPoint. Kinematics, Hits and Digits must be
824 // loaded before the call of the method.
826 AliRunLoader *rl = AliRunLoader::GetRunLoader();
828 AliError(Form(" No Runloader ")) ;
830 AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>
831 (rl->GetDetectorLoader("EMCAL"));
833 // Get the list of digits forming this RecPoint
834 Int_t nDigits = fMulDigit ;
835 Int_t *digitList = fDigitsList ;
837 // Find the digit with maximum amplitude
838 AliEMCALDigit *digit = 0;
839 TClonesArray *digits = emcalLoader->Digits();
841 Int_t bestDigitIndex = -1;
842 for (Int_t iDigit=0; iDigit<nDigits; iDigit++) {
843 digit = static_cast<AliEMCALDigit *>(digits->At(digitList[iDigit]));
844 if (digit->GetAmp() > maxAmp) {
845 maxAmp = digit->GetAmp();
846 bestDigitIndex = iDigit;
850 digit = static_cast<AliEMCALDigit *>(digits->At(digitList[bestDigitIndex]));
852 // Get the list of hits producing this digit,
853 // find which hit has deposited more energy
854 // and find the primary track.
856 AliEMCALHit *hit = 0;
857 TClonesArray *hits = emcalLoader->Hits();
859 Double_t maxedep = 0;
861 Int_t nHits = hits ->GetEntries();
862 Int_t id = digit->GetId();
863 for (Int_t iHit=0; iHit<nHits; iHit++) {
864 hit = static_cast<AliEMCALHit*> (hits->At(iHit)) ;
865 if(hit->GetId() == id){
866 Double_t edep = hit->GetEnergy();
867 Int_t track = hit->GetIparent();//Primary();
874 if (maxtrack != -1) return maxtrack;
875 return -12345; // no track found :(
878 //____________________________________________________________________________
879 void AliEMCALRecPoint::EvalTime(TClonesArray * digits){
880 // time is set to the time of the digit with the maximum energy
884 for(Int_t idig=0; idig < fMulDigit; idig++){
885 if(fEnergyList[idig] > maxE){
886 maxE = fEnergyList[idig] ;
890 fTime = ((AliEMCALDigit*) digits->At(fDigitsList[maxAt]))->GetTime() ;
894 //______________________________________________________________________________
895 void AliEMCALRecPoint::Paint(Option_t *)
897 // Paint this ALiRecPoint as a TMarker with its current attributes
899 TVector3 pos(0.,0.,0.) ;
900 GetLocalPosition(pos) ;
901 Coord_t x = pos.X() ;
902 Coord_t y = pos.Z() ;
903 Color_t markercolor = 1 ;
904 Size_t markersize = 1. ;
905 Style_t markerstyle = 5 ;
907 if (!gPad->IsBatch()) {
908 gVirtualX->SetMarkerColor(markercolor) ;
909 gVirtualX->SetMarkerSize (markersize) ;
910 gVirtualX->SetMarkerStyle(markerstyle) ;
912 gPad->SetAttMarkerPS(markercolor,markerstyle,markersize) ;
913 gPad->PaintPolyMarker(1,&x,&y,"") ;
916 //______________________________________________________________________________
917 Float_t AliEMCALRecPoint::EtaToTheta(Float_t arg) const
919 //Converts Theta (Radians) to Eta(Radians)
920 return (2.*TMath::ATan(TMath::Exp(-arg)));
923 //______________________________________________________________________________
924 Float_t AliEMCALRecPoint::ThetaToEta(Float_t arg) const
926 //Converts Eta (Radians) to Theta(Radians)
927 return (-1 * TMath::Log(TMath::Tan(0.5 * arg)));
930 //____________________________________________________________________________
931 void AliEMCALRecPoint::Print(Option_t *) const
933 // Print the list of digits belonging to the cluster
936 message = "AliEMCALRecPoint:\n" ;
937 message += " digits # = " ;
938 Info("Print", message.Data()) ;
941 for(iDigit=0; iDigit<fMulDigit; iDigit++)
942 printf(" %d ", fDigitsList[iDigit] ) ;
945 Info("Print", " Energies = ") ;
946 for(iDigit=0; iDigit<fMulDigit; iDigit++)
947 printf(" %f ", fEnergyList[iDigit] ) ;
950 Info("Print", "\n Abs Ids = ") ;
951 for(iDigit=0; iDigit<fMulDigit; iDigit++)
952 printf(" %i ", fAbsIdList[iDigit] ) ;
955 Info("Print", " Primaries ") ;
956 for(iDigit = 0;iDigit < fMulTrack; iDigit++)
957 printf(" %d ", fTracksList[iDigit]) ;
959 printf("\n Local x %6.2f y %7.2f z %7.1f \n", fLocPos[0], fLocPos[1], fLocPos[2]);
961 message = " ClusterType = %d" ;
962 message += " Multiplicity = %d" ;
963 message += " Cluster Energy = %f" ;
964 message += " Core energy = %f" ;
965 message += " Core radius = %f" ;
966 message += " Number of primaries %d" ;
967 message += " Stored at position %d" ;
968 Info("Print", message.Data(), fClusterType, fMulDigit, fAmp, fCoreEnergy, fCoreRadius, fMulTrack, GetIndexInList() ) ;