* provided "as is" without express or implied warranty. *
**************************************************************************/
+/* $Id$ */
+
//_________________________________________________________________________
-// Algorithm class to construct track segments connection RecPoints in
-// EMCA and Ppsd. Unfolds also the clusters in EMCA.
-//*-- Author : D. Peressounko SUBATECH
-//////////////////////////////////////////////////////////////////////////////
+// Implementation version 1 of algorithm class to construct PHOS track segments
+// Associates EMC and PPSD clusters
+// Unfolds the EMC cluster
+//
+//*-- Author: Dmitri Peressounko (RRC Ki & SUBATECH)
+//
// --- ROOT system ---
// --- Standard library ---
-#include <iostream>
-#include <cassert>
+#include <iostream.h>
// --- AliRoot header files ---
#include "AliPHOSv0.h"
#include "AliRun.h"
-extern void UnfoldingChiSquare(Int_t &NPar, Double_t *Grad, Double_t & fret, Double_t *x, Int_t iflag) ;
+extern void UnfoldingChiSquare(Int_t &nPar, Double_t *Grad, Double_t & fret, Double_t *x, Int_t iflag) ;
ClassImp( AliPHOSTrackSegmentMakerv1)
//____________________________________________________________________________
- AliPHOSTrackSegmentMakerv1::AliPHOSTrackSegmentMakerv1()
+ AliPHOSTrackSegmentMakerv1::AliPHOSTrackSegmentMakerv1() : AliPHOSTrackSegmentMaker()
{
// ctor
+
fR0 = 4. ;
AliPHOSGeometry * geom = AliPHOSGeometry::GetInstance() ;
//clusters are sorted in "rows" and "columns" of width geom->GetCrystalSize(0),
fDelta = fR0 + geom->GetCrystalSize(0) ;
- fMinuit = new TMinuit(100) ;
+ fMinuit = new TMinuit(100) ;
+ fUnfoldFlag = kTRUE ;
}
//____________________________________________________________________________
AliPHOSTrackSegmentMakerv1::~AliPHOSTrackSegmentMakerv1()
{
// dtor
- delete fMinuit ;
+
+ delete fMinuit ;
}
+
//____________________________________________________________________________
Bool_t AliPHOSTrackSegmentMakerv1::FindFit(AliPHOSEmcRecPoint * emcRP, int * maxAt, Float_t * maxAtEnergy,
- Int_t NPar, Float_t * FitParameters)
+ Int_t nPar, Float_t * fitparameters)
{
- // gObjectTable->Print() ;
- // Calls TMinuit for fitting cluster with several maxima
+ // Calls TMinuit to fit the energy distribution of a cluster with several maxima
+
AliPHOSGeometry * geom = AliPHOSGeometry::GetInstance() ;
- assert( NPar < 100 ) ;
gMinuit->SetPrintLevel(-1) ; // No Printout
gMinuit->SetFCN(UnfoldingChiSquare) ; // To set the address of the minimization function
Int_t ierflg = 0;
Int_t index = 0 ;
- Int_t NDigits = (Int_t) NPar / 3 ;
+ Int_t nDigits = (Int_t) nPar / 3 ;
Int_t iDigit ;
- for(iDigit = 0 ; iDigit < NDigits ; iDigit++){
+ for(iDigit = 0; iDigit < nDigits; iDigit++){
digit = (AliPHOSDigit *) maxAt[iDigit];
- Int_t RelId[4] ;
+ Int_t relid[4] ;
Float_t x ;
Float_t z ;
- geom->AbsToRelNumbering(digit->GetId(), RelId) ;
- geom->RelPosInModule(RelId, x, z) ;
+ geom->AbsToRelNumbering(digit->GetId(), relid) ;
+ geom->RelPosInModule(relid, x, z) ;
- Float_t Energy = maxAtEnergy[iDigit] ;
+ Float_t energy = maxAtEnergy[iDigit] ;
gMinuit->mnparm(index, "x", x, 0.1, 0, 0, ierflg) ;
index++ ;
cout << "PHOS Unfolding> Unable to set initial value for fit procedure : z = " << z << endl ;
return kFALSE;
}
- gMinuit->mnparm(index, "Energy", Energy , 0.05*Energy, 0., 4.*Energy, ierflg) ;
+ gMinuit->mnparm(index, "Energy", energy , 0.05*energy, 0., 4.*energy, ierflg) ;
index++ ;
if(ierflg != 0){
- cout << "PHOS Unfolding> Unable to set initial value for fit procedure : Energy = " << Energy << endl ;
+ cout << "PHOS Unfolding> Unable to set initial value for fit procedure : energy = " << energy << endl ;
return kFALSE;
-}
+ }
}
Double_t p0 = 0.1 ; // "Tolerance" Evaluation stops when EDM = 0.0001*p0 ; The number of function call slightly
cout << "PHOS Unfolding> Fit not converged, cluster abandoned "<< endl ;
return kFALSE ;
}
- for(index = 0; index < NPar; index++){
+ for(index = 0; index < nPar; index++){
Double_t err ;
Double_t val ;
gMinuit->GetParameter(index, val, err) ; // Returns value and error of parameter index
- FitParameters[index] = val ;
+ fitparameters[index] = val ;
}
return kTRUE;
}
//____________________________________________________________________________
-void AliPHOSTrackSegmentMakerv1::FillOneModule(DigitsList * Dl, RecPointsList * emcIn, TObjArray * emcOut,
- RecPointsList * ppsdIn, TObjArray * ppsdOutUp,
- TObjArray * ppsdOutLow, Int_t & PHOSMod, Int_t & emcStopedAt,
- Int_t & ppsdStopedAt)
+void AliPHOSTrackSegmentMakerv1::FillOneModule(DigitsList * dl,
+ AliPHOSRecPoint::RecPointsList * emcIn,
+ TObjArray * emcOut,
+ AliPHOSRecPoint::RecPointsList * ppsdIn,
+ TObjArray * ppsdOutUp,
+ TObjArray * ppsdOutLow,
+ Int_t & phosmod,
+ Int_t & emcStopedAt,
+ Int_t & ppsdStopedAt)
{
// Unfold clusters and fill xxxOut arrays with clusters from one PHOS module
AliPHOSEmcRecPoint * emcRecPoint ;
AliPHOSPpsdRecPoint * ppsdRecPoint ;
Int_t index ;
- cout << "Fill 1" << endl ;
- Int_t NemcUnfolded = emcIn->GetEntries() ;
- for(index = emcStopedAt; index < NemcUnfolded; index++){
- emcRecPoint = (AliPHOSEmcRecPoint *) (*emcIn)[index] ;
- cout << "Fill 2" << endl ;
-
- if(emcRecPoint->GetPHOSMod() != PHOSMod )
- break ;
-
-
- Int_t NMultipl = emcRecPoint->GetMultiplicity() ;
- int maxAt[NMultipl] ;
- Float_t maxAtEnergy[NMultipl] ;
- Int_t Nmax = emcRecPoint->GetNumberOfLocalMax(maxAt, maxAtEnergy) ;
+
+ Int_t nEmcUnfolded = emcIn->GetEntries() ;
+ for(index = emcStopedAt; index < nEmcUnfolded; index++){
+ emcRecPoint = (AliPHOSEmcRecPoint *) emcIn->At(index) ;
+ if(emcRecPoint->GetPHOSMod() != phosmod )
+ break ;
+ Int_t nMultipl = emcRecPoint->GetMultiplicity() ;
+ Int_t * maxAt = new Int_t[nMultipl] ;
+ Float_t * maxAtEnergy = new Float_t[nMultipl] ;
+ Int_t nMax = emcRecPoint->GetNumberOfLocalMax(maxAt, maxAtEnergy) ;
- if(Nmax <= 1) // if cluster is very flat, so that no prononsed maximum, then Nmax = 0
+ if(nMax <= 1 ) // if cluster is very flat (no pronounced maximum) then nMax = 0
emcOut->Add(emcRecPoint) ;
- else {
- UnfoldClusters(Dl, emcIn, emcRecPoint, Nmax, maxAt, maxAtEnergy, emcOut) ;
+ else if (fUnfoldFlag) {
+ UnfoldClusters(dl, emcIn, emcRecPoint, nMax, maxAt, maxAtEnergy, emcOut) ;
emcIn->Remove(emcRecPoint);
- cout << "Fill 3" << endl ;
emcIn->Compress() ;
- NemcUnfolded-- ;
+ nEmcUnfolded-- ;
index-- ;
}
+
+ delete[] maxAt ;
+ delete[] maxAtEnergy ;
}
emcStopedAt = index ;
for(index = ppsdStopedAt; index < ppsdIn->GetEntries(); index++){
- ppsdRecPoint = (AliPHOSPpsdRecPoint *) (*ppsdIn)[index] ;
- if(ppsdRecPoint->GetPHOSMod() != PHOSMod )
+ ppsdRecPoint = (AliPHOSPpsdRecPoint *) ppsdIn->At(index) ;
+ if(ppsdRecPoint->GetPHOSMod() != phosmod )
break ;
if(ppsdRecPoint->GetUp() )
ppsdOutUp->Add(ppsdRecPoint) ;
ppsdOutLow->Add(ppsdRecPoint) ;
}
ppsdStopedAt = index ;
-
- PHOSMod ++ ;
-
+
emcOut->Sort() ;
ppsdOutUp->Sort() ;
- ppsdOutLow->Sort() ;
-
+ ppsdOutLow->Sort() ;
}
//____________________________________________________________________________
-Float_t AliPHOSTrackSegmentMakerv1::GetDistanceInPHOSPlane(AliPHOSEmcRecPoint * EmcClu,AliPHOSPpsdRecPoint * PpsdClu, Bool_t &TooFar)
+Float_t AliPHOSTrackSegmentMakerv1::GetDistanceInPHOSPlane(AliPHOSEmcRecPoint * emcclu,AliPHOSPpsdRecPoint * PpsdClu, Bool_t &toofar)
{
- Float_t R = fR0 ;
+ // Calculates the distance between the EMC RecPoint and the PPSD RecPoint
+
+ Float_t r = fR0 ;
TVector3 vecEmc ;
TVector3 vecPpsd ;
- EmcClu->GetLocalPosition(vecEmc) ;
+ emcclu->GetLocalPosition(vecEmc) ;
PpsdClu->GetLocalPosition(vecPpsd) ;
- if(EmcClu->GetPHOSMod() == PpsdClu->GetPHOSMod()){
+ if(emcclu->GetPHOSMod() == PpsdClu->GetPHOSMod()){
if(vecPpsd.X() >= vecEmc.X() - fDelta ){
if(vecPpsd.Z() >= vecEmc.Z() - fDelta ){
AliPHOSGeometry * geom = AliPHOSGeometry::GetInstance() ;
- //Correct to difference in CPV and EMC position due to different distance to center.
- //we assume, that particle moves from center
- Float_t DCPV = geom->GetIPtoOuterCoverDistance();
- Float_t DEMC = geom->GetIPtoCrystalSurface() ;
- DEMC = DEMC / DCPV ;
- vecPpsd = DEMC * vecPpsd - vecEmc ;
- R = vecPpsd.Mag() ;
+ // Correct to difference in CPV and EMC position due to different distance to center.
+ // we assume, that particle moves from center
+ Float_t dCPV = geom->GetIPtoOuterCoverDistance();
+ Float_t dEMC = geom->GetIPtoCrystalSurface() ;
+ dEMC = dEMC / dCPV ;
+ vecPpsd = dEMC * vecPpsd - vecEmc ;
+ r = vecPpsd.Mag() ;
} // if zPpsd >= zEmc - fDelta
- TooFar = kFALSE ;
+ toofar = kFALSE ;
} // if xPpsd >= xEmc - fDelta
else
- TooFar = kTRUE ;
+ toofar = kTRUE ;
}
else
- TooFar = kTRUE ;
+ toofar = kTRUE ;
- return R ;
+ return r ;
}
//____________________________________________________________________________
-void AliPHOSTrackSegmentMakerv1::MakeLinks(TObjArray * EmcRecPoints, TObjArray * PpsdRecPointsUp,
- TObjArray * PpsdRecPointsLow, TClonesArray * LinkLowArray,
- TClonesArray *LinkUpArray)
+void AliPHOSTrackSegmentMakerv1::MakeLinks(TObjArray * emcRecPoints, TObjArray * ppsdRecPointsUp,
+ TObjArray * ppsdRecPointsLow, TClonesArray * linklowArray,
+ TClonesArray *linkupArray)
{
- //Finds distanses (links) between all EMC and PPSD clusters, which are not further from each other than fR0
-
- TIter nextEmc(EmcRecPoints) ;
+ // Finds distances (links) between all EMC and PPSD clusters, which are not further apart from each other than fR0
+
+ TIter nextEmc(emcRecPoints) ;
Int_t iEmcClu = 0 ;
- AliPHOSPpsdRecPoint * PpsdLow ;
- AliPHOSPpsdRecPoint * PpsdUp ;
- AliPHOSEmcRecPoint * EmcClu ;
+ AliPHOSPpsdRecPoint * ppsdlow ;
+ AliPHOSPpsdRecPoint * ppsdup ;
+ AliPHOSEmcRecPoint * emcclu ;
Int_t iLinkLow = 0 ;
Int_t iLinkUp = 0 ;
- while( (EmcClu = (AliPHOSEmcRecPoint*)nextEmc() ) ) {
- Bool_t TooFar ;
- TIter nextPpsdLow(PpsdRecPointsLow ) ;
+ while( (emcclu = (AliPHOSEmcRecPoint*)nextEmc() ) ) {
+ Bool_t toofar ;
+ TIter nextPpsdLow(ppsdRecPointsLow ) ;
Int_t iPpsdLow = 0 ;
- while( (PpsdLow = (AliPHOSPpsdRecPoint*)nextPpsdLow() ) ) {
- Float_t R = GetDistanceInPHOSPlane(EmcClu, PpsdLow, TooFar) ;
+ while( (ppsdlow = (AliPHOSPpsdRecPoint*)nextPpsdLow() ) ) {
+ Float_t r = GetDistanceInPHOSPlane(emcclu, ppsdlow, toofar) ;
- if(TooFar)
+ if(toofar)
break ;
- if(R < fR0)
- new( (*LinkLowArray)[iLinkLow++]) AliPHOSLink(R, iEmcClu, iPpsdLow) ;
-
+ if(r < fR0){
+ new( (*linklowArray)[iLinkLow++]) AliPHOSLink(r, iEmcClu, iPpsdLow) ;
+ }
iPpsdLow++ ;
}
- TIter nextPpsdUp(PpsdRecPointsUp ) ;
+ TIter nextPpsdUp(ppsdRecPointsUp ) ;
Int_t iPpsdUp = 0 ;
- while( (PpsdUp = (AliPHOSPpsdRecPoint*)nextPpsdUp() ) ) {
- Float_t R = GetDistanceInPHOSPlane(EmcClu, PpsdUp, TooFar) ;
+ while( (ppsdup = (AliPHOSPpsdRecPoint*)nextPpsdUp() ) ) {
+ Float_t r = GetDistanceInPHOSPlane(emcclu, ppsdup, toofar) ;
- if(TooFar)
+ if(toofar)
break ;
- if(R < fR0)
- new( (*LinkUpArray)[iLinkUp++]) AliPHOSLink(R, iEmcClu, iPpsdUp) ;
-
+ if(r < fR0) {
+ new( (*linkupArray)[iLinkUp++]) AliPHOSLink(r, iEmcClu, iPpsdUp) ;
+ }
iPpsdUp++ ;
}
} // while nextEmC
- LinkLowArray->Sort() ; //first links with smallest distances
- LinkUpArray->Sort() ;
+ linklowArray->Sort() ; //first links with smallest distances
+ linkupArray->Sort() ;
}
//____________________________________________________________________________
-void AliPHOSTrackSegmentMakerv1::MakePairs(TObjArray * EmcRecPoints, TObjArray * PpsdRecPointsUp,
- TObjArray * PpsdRecPointsLow, TClonesArray * LinkLowArray,
- TClonesArray * LinkUpArray, TrackSegmentsList * trsl)
-{ // Finds the smallest links and makes pairs of PPSD and EMC clusters with smallest distance
- TIter nextLow(LinkLowArray) ;
- TIter nextUp(LinkUpArray) ;
+void AliPHOSTrackSegmentMakerv1::MakePairs(TObjArray * emcRecPoints,
+ TObjArray * ppsdRecPointsUp,
+ TObjArray * ppsdRecPointsLow,
+ TClonesArray * linklowArray,
+ TClonesArray * linkupArray,
+ AliPHOSTrackSegment::TrackSegmentsList * trsl)
+{
+
+ // Finds the smallest links and makes pairs of PPSD and EMC clusters with smallest distance
+
+ TIter nextLow(linklowArray) ;
+ TIter nextUp(linkupArray) ;
AliPHOSLink * linkLow ;
AliPHOSLink * linkUp ;
AliPHOSPpsdRecPoint * ppsdLow ;
AliPHOSPpsdRecPoint * ppsdUp ;
- AliPHOSRecPoint * NullPointer = 0 ;
+ AliPHOSRecPoint * nullpointer = 0 ;
while ( (linkLow = (AliPHOSLink *)nextLow() ) ){
- emc = (AliPHOSEmcRecPoint *) EmcRecPoints->At(linkLow->GetEmc()) ;
- ppsdLow = (AliPHOSPpsdRecPoint *) PpsdRecPointsLow->At(linkLow->GetPpsd()) ;
- if((emc)&&(ppsdLow)){ // RecPoints not removed yet
+ emc = (AliPHOSEmcRecPoint *) emcRecPoints->At(linkLow->GetEmc()) ;
+ ppsdLow = (AliPHOSPpsdRecPoint *) ppsdRecPointsLow->At(linkLow->GetPpsd()) ;
+ if( (emc) && (ppsdLow) ){ // RecPoints not removed yet
ppsdUp = 0 ;
while ( (linkUp = (AliPHOSLink *)nextUp() ) ){
if(linkLow->GetEmc() == linkUp->GetEmc() ){
- ppsdUp = (AliPHOSPpsdRecPoint *) PpsdRecPointsUp->At(linkUp->GetPpsd()) ;
+ ppsdUp = (AliPHOSPpsdRecPoint *) ppsdRecPointsUp->At(linkUp->GetPpsd()) ;
break ;
}
} // while nextUp
nextUp.Reset();
- AliPHOSTrackSegment * subtr = new AliPHOSTrackSegment(emc, ppsdUp, ppsdLow ) ;
- trsl->Add(subtr) ;
- EmcRecPoints->AddAt(NullPointer,linkLow->GetEmc()) ;
- PpsdRecPointsLow->AddAt(NullPointer,linkLow->GetPpsd()) ;
+// AliPHOSTrackSegment * subtr = new AliPHOSTrackSegment(emc, ppsdUp, ppsdLow ) ;
+// trsl->Add(subtr) ;
+ new( (*trsl)[fNTrackSegments] ) AliPHOSTrackSegment(emc, ppsdUp, ppsdLow ) ;
+ fNTrackSegments++ ;
+ emcRecPoints->AddAt(nullpointer,linkLow->GetEmc()) ;
+ ppsdRecPointsLow->AddAt(nullpointer,linkLow->GetPpsd()) ;
if(ppsdUp)
- PpsdRecPointsUp->AddAt(NullPointer,linkUp->GetPpsd()) ;
+ ppsdRecPointsUp->AddAt(nullpointer,linkUp->GetPpsd()) ;
- } // if NLocMax
+ }
}
- TIter nextEmc(EmcRecPoints) ;
+ TIter nextEmc(emcRecPoints) ;
nextEmc.Reset() ;
- while( (emc = (AliPHOSEmcRecPoint*)nextEmc()) ){ //to create pairs if no PpsdLow
+ while( (emc = (AliPHOSEmcRecPoint*)nextEmc()) ){ //to create pairs if no ppsdlow
ppsdLow = 0 ;
ppsdUp = 0 ;
while ( (linkUp = (AliPHOSLink *)nextUp() ) ){
- if(EmcRecPoints->IndexOf(emc) == linkUp->GetEmc() ){
- ppsdUp = (AliPHOSPpsdRecPoint *) PpsdRecPointsUp->At(linkUp->GetPpsd()) ;
+ if(emcRecPoints->IndexOf(emc) == linkUp->GetEmc() ){
+ ppsdUp = (AliPHOSPpsdRecPoint *) ppsdRecPointsUp->At(linkUp->GetPpsd()) ;
break ;
}
}
- AliPHOSTrackSegment * subtr = new AliPHOSTrackSegment(emc, ppsdUp, ppsdLow ) ;
- trsl->Add(subtr) ;
-
+// AliPHOSTrackSegment * subtr = new AliPHOSTrackSegment(emc, ppsdUp, ppsdLow ) ;
+// trsl->Add(subtr) ;
+ new( (*trsl)[fNTrackSegments] ) AliPHOSTrackSegment(emc, ppsdUp, ppsdLow ) ;
+ fNTrackSegments++ ;
+
+
if(ppsdUp)
- PpsdRecPointsUp->AddAt(NullPointer,linkUp->GetPpsd()) ;
+ ppsdRecPointsUp->AddAt(nullpointer,linkUp->GetPpsd()) ;
}
}
//____________________________________________________________________________
-void AliPHOSTrackSegmentMakerv1::MakeTrackSegments(DigitsList * DL, RecPointsList * emcl,
- RecPointsList * ppsdl, TrackSegmentsList * trsl)
+void AliPHOSTrackSegmentMakerv1::MakeTrackSegments(DigitsList * dl,
+ AliPHOSRecPoint::RecPointsList * emcl,
+ AliPHOSRecPoint::RecPointsList * ppsdl,
+ AliPHOSTrackSegment::TrackSegmentsList * trsl)
{
- // main function, does the job
+ // Makes the track segments out of the list of EMC and PPSD Recpoints and stores them in a list
- Int_t PHOSMod = 1 ;
+ Int_t phosmod = 1 ;
Int_t emcStopedAt = 0 ;
Int_t ppsdStopedAt = 0 ;
- TObjArray * EmcRecPoints = new TObjArray(100) ; // these arrays keep pointers
- TObjArray * PpsdRecPointsUp = new TObjArray(100) ; // to RecPoints, which are
- TObjArray * PpsdRecPointsLow = new TObjArray(100) ; // kept in TClonesArray's emcl and ppsdl
+ TObjArray * emcRecPoints = new TObjArray(100) ; // these arrays keep pointers
+ TObjArray * ppsdRecPointsUp = new TObjArray(100) ; // to RecPoints, which are
+ TObjArray * ppsdRecPointsLow = new TObjArray(100) ; // kept in TClonesArray's emcl and ppsdl
- TClonesArray * LinkLowArray = new TClonesArray("AliPHOSLink", 100);
- TClonesArray * LinkUpArray = new TClonesArray("AliPHOSLink", 100);
+ TClonesArray * linklowArray = new TClonesArray("AliPHOSLink", 100);
+ TClonesArray * linkupArray = new TClonesArray("AliPHOSLink", 100);
AliPHOSGeometry * geom = AliPHOSGeometry::GetInstance() ;
- while(PHOSMod <= geom->GetNModules() ){
-
- cout << PHOSMod << " Track1 " << endl ;
+ while(phosmod <= geom->GetNModules() ){
- FillOneModule(DL, emcl, EmcRecPoints, ppsdl, PpsdRecPointsUp, PpsdRecPointsLow, PHOSMod , emcStopedAt, ppsdStopedAt) ;
- cout << PHOSMod << " Track2 " << endl ;
- MakeLinks(EmcRecPoints, PpsdRecPointsUp, PpsdRecPointsLow, LinkLowArray, LinkUpArray) ;
+ FillOneModule(dl, emcl, emcRecPoints, ppsdl, ppsdRecPointsUp, ppsdRecPointsLow, phosmod, emcStopedAt, ppsdStopedAt) ;
- cout << PHOSMod << " Track3 " << endl ;
- MakePairs(EmcRecPoints, PpsdRecPointsUp, PpsdRecPointsLow, LinkLowArray, LinkUpArray, trsl) ;
+ MakeLinks(emcRecPoints, ppsdRecPointsUp, ppsdRecPointsLow, linklowArray, linkupArray) ;
+
+ MakePairs(emcRecPoints, ppsdRecPointsUp, ppsdRecPointsLow, linklowArray, linkupArray, trsl) ;
- EmcRecPoints->Clear() ;
+ emcRecPoints->Clear() ;
- PpsdRecPointsUp->Clear() ;
+ ppsdRecPointsUp->Clear() ;
- PpsdRecPointsLow->Clear() ;
+ ppsdRecPointsLow->Clear() ;
- LinkUpArray->Clear();
+ linkupArray->Clear() ;
- LinkLowArray->Clear();
+ linklowArray->Clear() ;
+ phosmod++ ;
}
- delete EmcRecPoints ;
- EmcRecPoints = 0 ;
+ delete emcRecPoints ;
+ emcRecPoints = 0 ;
- delete PpsdRecPointsUp ;
- PpsdRecPointsUp = 0 ;
+ delete ppsdRecPointsUp ;
+ ppsdRecPointsUp = 0 ;
- delete PpsdRecPointsLow ;
- PpsdRecPointsLow = 0 ;
+ delete ppsdRecPointsLow ;
+ ppsdRecPointsLow = 0 ;
- delete LinkUpArray ;
- LinkUpArray = 0 ;
+ delete linkupArray ;
+ linkupArray = 0 ;
- delete LinkLowArray ;
- LinkLowArray = 0 ;
+ delete linklowArray ;
+ linklowArray = 0 ;
}
//____________________________________________________________________________
Double_t AliPHOSTrackSegmentMakerv1::ShowerShape(Double_t r)
{
-// If you change this function, change also gradiend evaluation in ChiSquare()
- Double_t r4 = r*r*r*r ;
- Double_t r295 = TMath::Power(r, 2.95) ;
+ // Shape of the shower (see PHOS TDR)
+ // If you change this function, change also the gradien evaluation in ChiSquare()
+
+ Double_t r4 = r*r*r*r ;
+ Double_t r295 = TMath::Power(r, 2.95) ;
Double_t shape = TMath::Exp( -r4 * (1. / (2.32 + 0.26 * r4) + 0.0316 / (1 + 0.0652 * r295) ) ) ;
return shape ;
}
//____________________________________________________________________________
-void AliPHOSTrackSegmentMakerv1::UnfoldClusters(DigitsList * DL, RecPointsList * emcIn, AliPHOSEmcRecPoint * iniEmc,
- Int_t Nmax, int * maxAt, Float_t * maxAtEnergy, TObjArray * emcList)
+void AliPHOSTrackSegmentMakerv1::UnfoldClusters(DigitsList * dl,
+ AliPHOSRecPoint::RecPointsList * emcIn,
+ AliPHOSEmcRecPoint * iniEmc,
+ Int_t nMax,
+ int * maxAt,
+ Float_t * maxAtEnergy,
+ TObjArray * emcList)
{
- // fits cluster with Nmax overlapping showers
-
- Int_t NPar = 3 * Nmax ;
- Float_t FitParameters[NPar] ;
+ // Performs the unfolding of a cluster with nMax overlapping showers
+ // This is time consuming (use the (Un)SetUnfolFlag() )
+
+ Int_t nPar = 3 * nMax ;
+ Float_t * fitparameters = new Float_t[nPar] ;
AliPHOSGeometry * geom = AliPHOSGeometry::GetInstance() ;
- Bool_t rv = FindFit(iniEmc, maxAt, maxAtEnergy, NPar, FitParameters) ;
- if( !rv ) // Fit failed, return and remove cluster
+ Bool_t rv = FindFit(iniEmc, maxAt, maxAtEnergy, nPar, fitparameters) ;
+ if( !rv ) {
+ // Fit failed, return and remove cluster
+ delete[] fitparameters ;
return ;
+ }
Float_t xDigit ;
Float_t zDigit ;
- Int_t RelId[4] ;
+ Int_t relid[4] ;
- Int_t Ndigits = iniEmc->GetMultiplicity() ;
+ Int_t nDigits = iniEmc->GetMultiplicity() ;
Float_t xpar ;
Float_t zpar ;
- Float_t Epar ;
- Float_t Distance ;
- Float_t Ratio ;
- Float_t Efit[Ndigits] ;
+ Float_t epar ;
+ Float_t distance ;
+ Float_t ratio ;
+ Float_t * efit = new Float_t[nDigits] ;
Int_t iparam ;
Int_t iDigit ;
AliPHOSDigit * digit ;
AliPHOSEmcRecPoint * emcRP ;
- int * emcDigits = iniEmc->GetDigitsList() ;
+ Int_t * emcDigits = iniEmc->GetDigitsList() ;
Float_t * emcEnergies = iniEmc->GetEnergiesList() ;
Int_t iRecPoint = emcIn->GetEntries() ;
- for(iDigit = 0 ; iDigit < Ndigits ; iDigit ++){
+ for(iDigit = 0 ; iDigit < nDigits ; iDigit ++){
digit = (AliPHOSDigit *) emcDigits[iDigit];
- geom->AbsToRelNumbering(digit->GetId(), RelId) ;
- geom->RelPosInModule(RelId, xDigit, zDigit) ;
- Efit[iDigit] = 0;
+ geom->AbsToRelNumbering(digit->GetId(), relid) ;
+ geom->RelPosInModule(relid, xDigit, zDigit) ;
+ efit[iDigit] = 0;
iparam = 0 ;
- while(iparam < NPar ){
- xpar = FitParameters[iparam] ;
- zpar = FitParameters[iparam+1] ;
- Epar = FitParameters[iparam+2] ;
+ while(iparam < nPar ){
+ xpar = fitparameters[iparam] ;
+ zpar = fitparameters[iparam+1] ;
+ epar = fitparameters[iparam+2] ;
iparam += 3 ;
- Distance = (xDigit - xpar) * (xDigit - xpar) + (zDigit - zpar) * (zDigit - zpar) ;
- Distance = TMath::Sqrt(Distance) ;
- Efit[iDigit] += Epar * ShowerShape(Distance) ;
+ distance = (xDigit - xpar) * (xDigit - xpar) + (zDigit - zpar) * (zDigit - zpar) ;
+ distance = TMath::Sqrt(distance) ;
+ efit[iDigit] += epar * AliPHOSTrackSegmentMakerv1::ShowerShape(distance) ;
}
-
}
iparam = 0 ;
Float_t eDigit ;
- while(iparam < NPar ){
- xpar = FitParameters[iparam] ;
- zpar = FitParameters[iparam+1] ;
- Epar = FitParameters[iparam+2] ;
+ while(iparam < nPar ){
+ xpar = fitparameters[iparam] ;
+ zpar = fitparameters[iparam+1] ;
+ epar = fitparameters[iparam+2] ;
iparam += 3 ;
new ((*emcIn)[iRecPoint]) AliPHOSEmcRecPoint( iniEmc->GetLogWeightCut(), iniEmc->GetLocMaxCut() ) ;
emcRP = (AliPHOSEmcRecPoint *) emcIn->At(iRecPoint++);
- for(iDigit = 0 ; iDigit < Ndigits ; iDigit ++){
+ for(iDigit = 0 ; iDigit < nDigits ; iDigit ++){
digit = (AliPHOSDigit *) emcDigits[iDigit];
- geom->AbsToRelNumbering(digit->GetId(), RelId) ;
- geom->RelPosInModule(RelId, xDigit, zDigit) ;
- Distance = (xDigit - xpar) * (xDigit - xpar) + (zDigit - zpar) * (zDigit - zpar) ;
- Distance = TMath::Sqrt(Distance) ;
- Ratio = Epar * ShowerShape(Distance) / Efit[iDigit] ;
- eDigit = emcEnergies[iDigit] * Ratio ;
+ geom->AbsToRelNumbering(digit->GetId(), relid) ;
+ geom->RelPosInModule(relid, xDigit, zDigit) ;
+ distance = (xDigit - xpar) * (xDigit - xpar) + (zDigit - zpar) * (zDigit - zpar) ;
+ distance = TMath::Sqrt(distance) ;
+ ratio = epar * AliPHOSTrackSegmentMakerv1::ShowerShape(distance) / efit[iDigit] ;
+ eDigit = emcEnergies[iDigit] * ratio ;
emcRP->AddDigit( *digit, eDigit ) ;
}
emcList->Add(emcRP) ;
}
+
+ delete[] fitparameters ;
+ delete[] efit ;
+
}
+
//______________________________________________________________________________
-void UnfoldingChiSquare(Int_t &NPar, Double_t *Grad, Double_t & fret, Double_t *x, Int_t iflag)
+void UnfoldingChiSquare(Int_t & nPar, Double_t * Grad, Double_t & fret, Double_t * x, Int_t iflag)
{
-
-// Number of paramters, Gradient , Chi squared, parameters, what to do
+ // Calculates th Chi square for the cluster unfolding minimization
+ // Number of parameters, Gradient, Chi squared, parameters, what to do
AliPHOSGeometry * geom = AliPHOSGeometry::GetInstance() ;
AliPHOSEmcRecPoint * emcRP = (AliPHOSEmcRecPoint *) gMinuit->GetObjectFit() ; // EmcRecPoint to fit
- int * emcDigits = emcRP->GetDigitsList() ;
+ Int_t * emcDigits = emcRP->GetDigitsList() ;
Float_t * emcEnergies = emcRP->GetEnergiesList() ;
fret = 0. ;
Int_t iparam ;
if(iflag == 2)
- for(iparam = 0 ; iparam < NPar ; iparam++)
+ for(iparam = 0 ; iparam < nPar ; iparam++)
Grad[iparam] = 0 ; // Will evaluate gradient
- Double_t Efit ;
+ Double_t efit ;
AliPHOSDigit * digit ;
Int_t iDigit = 0 ;
while ( (digit = (AliPHOSDigit *)emcDigits[iDigit] )){
- Int_t RelId[4] ;
+ Int_t relid[4] ;
Float_t xDigit ;
Float_t zDigit ;
- geom->AbsToRelNumbering(digit->GetId(), RelId) ;
- geom->RelPosInModule(RelId, xDigit, zDigit) ;
+ geom->AbsToRelNumbering(digit->GetId(), relid) ;
+ geom->RelPosInModule(relid, xDigit, zDigit) ;
if(iflag == 2){ // calculate gradient
Int_t iParam = 0 ;
- Efit = 0 ;
- while(iParam < NPar ){
- Double_t Distance = (xDigit - x[iParam]) * (xDigit - x[iParam]) ;
+ efit = 0 ;
+ while(iParam < nPar ){
+ Double_t distance = (xDigit - x[iParam]) * (xDigit - x[iParam]) ;
iParam++ ;
- Distance += (zDigit - x[iParam]) * (zDigit - x[iParam]) ;
- Distance = TMath::Sqrt( Distance ) ;
+ distance += (zDigit - x[iParam]) * (zDigit - x[iParam]) ;
+ distance = TMath::Sqrt( distance ) ;
iParam++ ;
- Efit += x[iParam] * AliPHOSTrackSegmentMakerv1::ShowerShape(Distance) ;
+ efit += x[iParam] * AliPHOSTrackSegmentMakerv1::ShowerShape(distance) ;
iParam++ ;
}
- Double_t sum = 2. * (Efit - emcEnergies[iDigit]) / emcEnergies[iDigit] ; // Here we assume, that sigma = sqrt(E)
+ Double_t sum = 2. * (efit - emcEnergies[iDigit]) / emcEnergies[iDigit] ; // Here we assume, that sigma = sqrt(E)
iParam = 0 ;
- while(iParam < NPar ){
+ while(iParam < nPar ){
Double_t xpar = x[iParam] ;
Double_t zpar = x[iParam+1] ;
- Double_t Epar = x[iParam+2] ;
+ Double_t epar = x[iParam+2] ;
Double_t dr = TMath::Sqrt( (xDigit - xpar) * (xDigit - xpar) + (zDigit - zpar) * (zDigit - zpar) );
Double_t shape = sum * AliPHOSTrackSegmentMakerv1::ShowerShape(dr) ;
Double_t r4 = dr*dr*dr*dr ;
Double_t deriv =-4. * dr*dr * ( 2.32 / ( (2.32 + 0.26 * r4) * (2.32 + 0.26 * r4) ) +
0.0316 * (1. + 0.0171 * r295) / ( ( 1. + 0.0652 * r295) * (1. + 0.0652 * r295) ) ) ;
- Grad[iParam] += Epar * shape * deriv * (xpar - xDigit) ; // Derivative over x
+ Grad[iParam] += epar * shape * deriv * (xpar - xDigit) ; // Derivative over x
iParam++ ;
- Grad[iParam] += Epar * shape * deriv * (zpar - zDigit) ; // Derivative over z
+ Grad[iParam] += epar * shape * deriv * (zpar - zDigit) ; // Derivative over z
iParam++ ;
Grad[iParam] += shape ; // Derivative over energy
iParam++ ;
}
}
- Efit = 0;
+ efit = 0;
iparam = 0 ;
- while(iparam < NPar ){
+ while(iparam < nPar ){
Double_t xpar = x[iparam] ;
Double_t zpar = x[iparam+1] ;
- Double_t Epar = x[iparam+2] ;
+ Double_t epar = x[iparam+2] ;
iparam += 3 ;
- Double_t Distance = (xDigit - xpar) * (xDigit - xpar) + (zDigit - zpar) * (zDigit - zpar) ;
- Distance = TMath::Sqrt(Distance) ;
- Efit += Epar * AliPHOSTrackSegmentMakerv1::ShowerShape(Distance) ;
+ Double_t distance = (xDigit - xpar) * (xDigit - xpar) + (zDigit - zpar) * (zDigit - zpar) ;
+ distance = TMath::Sqrt(distance) ;
+ efit += epar * AliPHOSTrackSegmentMakerv1::ShowerShape(distance) ;
}
- fret += (Efit-emcEnergies[iDigit])*(Efit-emcEnergies[iDigit])/emcEnergies[iDigit] ;
+ fret += (efit-emcEnergies[iDigit])*(efit-emcEnergies[iDigit])/emcEnergies[iDigit] ;
// Here we assume, that sigma = sqrt(E)
iDigit++ ;
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff