* about the suitability of this software for any purpose. It is *
* provided "as is" without express or implied warranty. *
**************************************************************************/
-
+/* $Id$ */
//_________________________________________________________________________
-// A brief description of the class
-//*-- Author : Yves Schutz SUBATECH
-//////////////////////////////////////////////////////////////////////////////
+// Implementation version 1 of algorithm class to construct PHOS track segments
+// Track segment for PHOS is list of
+// EMC RecPoint + (possibly) CPV RecPoint + (possibly) PPSD RecPoint
+// To find TrackSegments we do the following:
+// for each EMC RecPoints we look at
+// CPV/PPSD RecPoints in the radious fRcpv.
+// If there is such a CPV RecPoint,
+// we make "Link" it is just indexes of EMC and CPV/PPSD RecPoint and distance
+// between them in the PHOS plane.
+// Then we sort "Links" and starting from the
+// least "Link" pointing to the unassined EMC and CPV RecPoints assing them to
+// new TrackSegment.
+// If there is no CPV/PPSD RecPoint we make TrackSegment
+// consisting from EMC alone. There is no TrackSegments without EMC RecPoint.
+//// In principle this class should be called from AliPHOSReconstructioner, but
+// one can use it as well in standalone mode.
+// Use case:
+// root [0] AliPHOSTrackSegmentMakerv1 * t = new AliPHOSTrackSegmentMaker("galice.root", "tracksegmentsname", "recpointsname")
+// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
+// // reads gAlice from header file "galice.root", uses recpoints stored in the branch names "recpointsname" (default = "Default")
+// // and saves recpoints in branch named "tracksegmentsname" (default = "recpointsname")
+// root [1] t->ExecuteTask()
+// root [2] t->SetMaxEmcPpsdDistance(5)
+// root [3] t->SetTrackSegmentsBranch("max distance 5 cm")
+// root [4] t->ExecuteTask("deb all time")
+//
+//*-- Author: Dmitri Peressounko (RRC Ki & SUBATECH) & Yves Schutz (SUBATECH)
+//
// --- ROOT system ---
-
-#include "TObjArray.h"
-#include "TClonesArray.h"
-#include "TMinuit.h"
+#include "TROOT.h"
+#include "TFile.h"
+#include "TFolder.h"
+#include "TTree.h"
+#include "TSystem.h"
+#include "TBenchmark.h"
// --- Standard library ---
-#include "iostream.h"
-
// --- AliRoot header files ---
#include "AliPHOSTrackSegmentMakerv1.h"
+#include "AliPHOSClusterizerv1.h"
#include "AliPHOSTrackSegment.h"
+#include "AliPHOSCpvRecPoint.h"
#include "AliPHOSLink.h"
-#include "AliPHOSv0.h"
-#include "AliRun.h"
+#include "AliPHOSGetter.h"
+#include "AliPHOS.h"
ClassImp( AliPHOSTrackSegmentMakerv1)
//____________________________________________________________________________
- AliPHOSTrackSegmentMakerv1:: AliPHOSTrackSegmentMakerv1() // ctor
+ AliPHOSTrackSegmentMakerv1::AliPHOSTrackSegmentMakerv1() : AliPHOSTrackSegmentMaker()
{
- fR0 = 4. ;
- AliPHOSGeometry * geom = AliPHOSGeometry::GetInstance() ;
- //clusters are sorted in "rows" and "columns" of width geom->GetCrystalSize(0),
- fDelta = fR0 + geom->GetCrystalSize(0) ;
+ // default ctor (to be used mainly by Streamer)
+
+ InitParameters() ;
+ fDefaultInit = kTRUE ;
}
//____________________________________________________________________________
-Bool_t AliPHOSTrackSegmentMakerv1::FindFit(AliPHOSEmcRecPoint * emcRP, int * maxAt, Float_t * maxAtEnergy,
- Int_t NPar, Float_t * FitParametres)
-{ //Calls TMinuit for fitting cluster with several maxima
-
- AliPHOSGeometry * geom = AliPHOSGeometry::GetInstance() ;
- TMinuit *gMinuit = new TMinuit(NPar); //initialize TMinuit with a maximum of 5 params
- gMinuit->SetPrintLevel(-1) ; //No PRIntout
- gMinuit->SetFCN(UnfoldingChiSquare ); //To set the address of the minimization function
- gMinuit->SetObjectFit(emcRP) ; //To tranfer pointer to UnfoldingChiSquare
-
- //filling initial values for fit parameters
- AliPHOSDigit * digit ;
- Int_t ierflg = 0;
- Int_t index = 0 ;
- Int_t NDigits = (Int_t) NPar / 3 ;
- Int_t iDigit ;
- for(iDigit = 0 ; iDigit < NDigits ; iDigit ++){
- digit = (AliPHOSDigit *) maxAt[iDigit];
-
- Int_t RelId[4] ;
- Float_t x ;
- Float_t z ;
- geom->AbsToRelNumbering(digit->GetId(),RelId) ;
- geom->RelPosInModule(RelId,x,z) ;
-
- Float_t Energy = maxAtEnergy[iDigit] ;
-
- gMinuit->mnparm(index++, " ", x, 0.1, 0, 0, ierflg) ;
- if(ierflg != 0){
- cout << "PHOS Unfolding> Unable to set initial value for fit procedure : x = " << x << endl ;
- return kFALSE;
- }
- gMinuit->mnparm(index++, " ", z, 0.1, 0, 0, ierflg) ;
- if(ierflg != 0){
- cout << "PHOS Unfolding> Unable to set initial value for fit procedure : z = " << z << endl ;
- return kFALSE;
- }
- gMinuit->mnparm(index++, " ", Energy , 0.05*Energy, 0., 4.*Energy, ierflg) ;
- if(ierflg != 0){
- cout << "PHOS Unfolding> Unable to set initial value for fit procedure : Energy = " << Energy << endl ;
- return kFALSE;
+ AliPHOSTrackSegmentMakerv1::AliPHOSTrackSegmentMakerv1(const TString alirunFileName, const TString eventFolderName)
+ :AliPHOSTrackSegmentMaker(alirunFileName, eventFolderName)
+{
+ // ctor
+
+ InitParameters() ;
+ Init() ;
+ fDefaultInit = kFALSE ;
}
- }
- Double_t p0=0.1; //"Tolerance" Evaluation stops when EDM = 0.0001*p0 ; The number of function call slightly
- //depends on it.
- Double_t p1 = 1.;
-
- gMinuit->mnexcm("SET STR", 0, 0, ierflg) ; //force TMinuit to reduce function calls
- gMinuit->mnexcm("SET GRA", &p1, 1, ierflg) ; //force TMinuit to use my gradient
- gMinuit->SetMaxIterations(5);
- gMinuit->mnexcm("SET NOW", 0 , 0, ierflg) ; //No Warnings
- gMinuit->mnexcm("MIGRAD", &p0, 0, ierflg); // minimize
- if(ierflg == 4){ //Minimum not found
- cout << "PHOS Unfolding> Fit not converged, cluster abondoned "<< endl ;
- return kFALSE ;
- }
- for(index = 0; index < NPar; index++){
- Double_t err ;
- Double_t val ;
- gMinuit->GetParameter(index, val, err) ; //Returns value and error of parameter index
- FitParametres[index] = val ;
- }
- gMinuit->Delete() ;
- return kTRUE;
+//____________________________________________________________________________
+ AliPHOSTrackSegmentMakerv1::~AliPHOSTrackSegmentMakerv1()
+{
+ // dtor
+ // fDefaultInit = kTRUE if TrackSegmentMaker created by default ctor (to get just the parameters)
+ if (!fDefaultInit)
+ delete fLinkUpArray ;
}
+
+
//____________________________________________________________________________
-void AliPHOSTrackSegmentMakerv1::FillOneModule(DigitsList * Dl, RecPointsList * emcIn, TObjArray * emcOut,
- RecPointsList * ppsdIn, TObjArray * ppsdOutUp,
- TObjArray * ppsdOutLow, Int_t &PHOSMod, Int_t & emcStopedAt,
- Int_t & ppsdStopedAt)
-{// Unfold clusters and fill xxxOut arrais with clusters from ome PHOS modeule
- AliPHOSEmcRecPoint * emcRecPoint ;
- AliPHOSPpsdRecPoint * ppsdRecPoint ;
- Int_t index ;
-
- Int_t NemcUnfolded = emcIn->GetEntries() ;
- for(index = emcStopedAt; index < NemcUnfolded; index++){
-
- emcRecPoint = (AliPHOSEmcRecPoint *) (*emcIn)[index] ;
-
- if(emcRecPoint->GetPHOSMod() != PHOSMod )
- break ;
-
- Int_t NMultipl = emcRecPoint->GetMultiplicity() ;
- int maxAt[NMultipl] ;
- Float_t maxAtEnergy[NMultipl] ;
- Int_t Nmax = emcRecPoint->GetNumberOfLocalMax(maxAt,maxAtEnergy) ;
-
- if(Nmax<=1) // if cluster is very flat, so that no prononsed maximum, then Nmax = 0
- emcOut->Add(emcRecPoint) ;
- else {
- UnfoldClusters(Dl, emcIn, emcRecPoint, Nmax, maxAt, maxAtEnergy, emcOut) ;
- emcIn->Remove(emcRecPoint);
- emcIn->Compress() ;
- NemcUnfolded-- ;
- index-- ;
- }
- }
- emcStopedAt = index ;
-
- for(index = ppsdStopedAt; index < ppsdIn->GetEntries(); index++){
- ppsdRecPoint = (AliPHOSPpsdRecPoint *) (*ppsdIn)[index] ;
- if(ppsdRecPoint->GetPHOSMod() != PHOSMod ) break ;
- if(ppsdRecPoint->GetUp() )
- ppsdOutUp->Add(ppsdRecPoint) ;
- else
- ppsdOutLow->Add(ppsdRecPoint) ;
- }
- ppsdStopedAt = index ;
-
- PHOSMod ++ ;
+const TString AliPHOSTrackSegmentMakerv1::BranchName() const
+{
+
+ return GetName() ;
+}
+
+//____________________________________________________________________________
+void AliPHOSTrackSegmentMakerv1::FillOneModule()
+{
+ // Finds first and last indexes between which
+ // clusters from one PHOS module are
+
+ AliPHOSGetter * gime = AliPHOSGetter::Instance() ;
- emcOut->Sort() ;
- ppsdOutUp->Sort() ;
- ppsdOutLow->Sort() ;
+ TObjArray * emcRecPoints = gime->EmcRecPoints() ;
+ TObjArray * cpvRecPoints = gime->CpvRecPoints() ;
+
+ //First EMC clusters
+ Int_t totalEmc = emcRecPoints->GetEntriesFast() ;
+ for(fEmcFirst = fEmcLast; (fEmcLast < totalEmc) &&
+ ((dynamic_cast<AliPHOSRecPoint *>(emcRecPoints->At(fEmcLast)))->GetPHOSMod() == fModule );
+ fEmcLast ++) ;
+ //Now CPV clusters
+ Int_t totalCpv = cpvRecPoints->GetEntriesFast() ;
+
+ for(fCpvFirst = fCpvLast; (fCpvLast < totalCpv) &&
+ ((dynamic_cast<AliPHOSRecPoint *>(cpvRecPoints->At(fCpvLast)))->GetPHOSMod() == fModule );
+ fCpvLast ++) ;
+
}
+
//____________________________________________________________________________
-Float_t AliPHOSTrackSegmentMakerv1::GetDistanceInPHOSPlane(AliPHOSEmcRecPoint * EmcClu,AliPHOSPpsdRecPoint * PpsdClu, Bool_t &TooFar)
+Float_t AliPHOSTrackSegmentMakerv1::GetDistanceInPHOSPlane(AliPHOSEmcRecPoint * emcClu,AliPHOSRecPoint * cpvClu, Bool_t &toofar)const
{
- Float_t R = fR0 ;
+ // Calculates the distance between the EMC RecPoint and the PPSD RecPoint
+ // Clusters are sorted in "rows" and "columns" of width 1 cm
+
+ Float_t delta = 1 ; // Width of the rows in sorting of RecPoints (in cm)
+ // if you change this value, change it as well in xxxRecPoint::Compare()
+ Float_t r = fRcpv ;
TVector3 vecEmc ;
- TVector3 vecPpsd ;
+ TVector3 vecCpv ;
- EmcClu->GetLocalPosition(vecEmc) ;
- PpsdClu->GetLocalPosition(vecPpsd) ;
- 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() ;
- } // if zPpsd >= zEmc - fDelta
- TooFar = kFALSE ;
- } // if xPpsd >= xEmc - fDelta
+ emcClu->GetLocalPosition(vecEmc) ;
+ cpvClu->GetLocalPosition(vecCpv) ;
+
+ if(emcClu->GetPHOSMod() == cpvClu->GetPHOSMod()){
+ if(vecCpv.X() <= vecEmc.X() + fRcpv + 2*delta ){
+
+ vecCpv = vecCpv - vecEmc ;
+ r = vecCpv.Mag() ;
+ toofar = kFALSE ;
+
+ } // if xPpsd >= xEmc + ...
else
- TooFar = kTRUE ;
+ toofar = kTRUE ;
}
else
- TooFar = kTRUE ;
+ toofar = kTRUE ;
+
+ //toofar = kFALSE ;
+
- return R ;
+ return r ;
}
//____________________________________________________________________________
-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) ;
- Int_t iEmcClu = 0 ;
+void AliPHOSTrackSegmentMakerv1::Init()
+{
+ // Make all memory allocations that are not possible in default constructor
- AliPHOSPpsdRecPoint * PpsdLow ;
- AliPHOSPpsdRecPoint * PpsdUp ;
- AliPHOSEmcRecPoint * EmcClu ;
+ AliPHOSGetter* gime = AliPHOSGetter::Instance(GetTitle(), fEventFolderName.Data());
- Int_t iLinkLow = 0 ;
+ fLinkUpArray = new TClonesArray("AliPHOSLink", 1000);
+ if ( !gime->TrackSegmentMaker() ) {
+ gime->PostTrackSegmentMaker(this);
+ }
+}
+
+//____________________________________________________________________________
+void AliPHOSTrackSegmentMakerv1::InitParameters()
+{
+ fRcpv = 10. ;
+ fEmcFirst = 0 ;
+ fEmcLast = 0 ;
+ fCpvFirst = 0 ;
+ fCpvLast = 0 ;
+ fLinkUpArray = 0 ;
+ fTrackSegmentsInRun = 0 ;
+}
+
+
+//____________________________________________________________________________
+void AliPHOSTrackSegmentMakerv1::MakeLinks()const
+{
+ // Finds distances (links) between all EMC and PPSD clusters,
+ // which are not further apart from each other than fRcpv
+ // and sort them in accordance with this distance
+
+ AliPHOSGetter * gime = AliPHOSGetter::Instance() ;
+ TObjArray * emcRecPoints = gime->EmcRecPoints() ;
+ TObjArray * cpvRecPoints = gime->CpvRecPoints() ;
+
+ fLinkUpArray->Clear() ;
+
+ AliPHOSRecPoint * cpv ;
+ AliPHOSEmcRecPoint * emcclu ;
+
Int_t iLinkUp = 0 ;
- 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) ;
-
- if(TooFar)
- break ;
- if(R < fR0)
- new( (*LinkLowArray)[iLinkLow++]) AliPHOSLink(R, iEmcClu, iPpsdLow) ;
-
- iPpsdLow++ ;
-
- }
-
- TIter nextPpsdUp(PpsdRecPointsUp ) ;
- Int_t iPpsdUp = 0 ;
-
- while( (PpsdUp = (AliPHOSPpsdRecPoint*)nextPpsdUp() ) ) {
- Float_t R = GetDistanceInPHOSPlane(EmcClu, PpsdUp, TooFar) ;
-
- if(TooFar)
- break ;
- if(R < fR0)
- new( (*LinkUpArray)[iLinkUp++]) AliPHOSLink(R, iEmcClu, iPpsdUp) ;
+ Int_t iEmcRP;
+ for(iEmcRP = fEmcFirst; iEmcRP < fEmcLast; iEmcRP++ ) {
+ emcclu = dynamic_cast<AliPHOSEmcRecPoint *>(emcRecPoints->At(iEmcRP)) ;
+
+ Bool_t toofar ;
+ Int_t iCpv = 0 ;
+ for(iCpv = fCpvFirst; iCpv < fCpvLast;iCpv++ ) {
- iPpsdUp++ ;
+ cpv = dynamic_cast<AliPHOSRecPoint *>(cpvRecPoints->At(iCpv)) ;
+ Float_t r = GetDistanceInPHOSPlane(emcclu, cpv, toofar) ;
+ if(toofar)
+ break ;
+ if(r < fRcpv) {
+ new ((*fLinkUpArray)[iLinkUp++]) AliPHOSLink(r, iEmcRP, iCpv) ;
+ }
}
-
- iEmcClu++ ;
-
- } // while nextEmC
+ }
- LinkLowArray->Sort() ; //first links with smallest distances
- LinkUpArray->Sort() ;
+ fLinkUpArray->Sort() ; //first links with smallest distances
}
-
+
//____________________________________________________________________________
-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) ;
-
- AliPHOSLink * linkLow ;
- AliPHOSLink * linkUp ;
+void AliPHOSTrackSegmentMakerv1::MakePairs()
+{
+ // Using the previously made list of "links", we found the smallest link - i.e.
+ // link with the least distance between EMC and CPV and pointing to still
+ // unassigned RecParticles. We assign these RecPoints to TrackSegment and
+ // remove them from the list of "unassigned".
- AliPHOSEmcRecPoint * emc ;
- AliPHOSPpsdRecPoint * ppsdLow ;
- AliPHOSPpsdRecPoint * ppsdUp ;
-
- while ( (linkLow = (AliPHOSLink *)nextLow() ) ){
- 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()) ;
- break ;
- }
-
- } // while nextUp
-
- nextUp.Reset();
- AliPHOSTrackSegment * subtr = new AliPHOSTrackSegment(emc, ppsdUp, ppsdLow ) ;
- trsl->Add(subtr) ;
- EmcRecPoints->RemoveAt(linkLow->GetEmc()) ;
- PpsdRecPointsLow->RemoveAt(linkLow->GetPpsd()) ;
-
- if(ppsdUp)
- PpsdRecPointsUp->RemoveAt(linkUp->GetPpsd()) ;
-
- } // if NLocMax
- }
-
- TIter nextEmc(EmcRecPoints) ;
- nextEmc.Reset() ;
+ AliPHOSGetter * gime = AliPHOSGetter::Instance() ;
- while( (emc = (AliPHOSEmcRecPoint*)nextEmc()) ){ //to create pairs if no PpsdLow
- ppsdLow = NULL ;
- ppsdUp = NULL ;
+ TObjArray * emcRecPoints = gime->EmcRecPoints() ;
+ TObjArray * cpvRecPoints = gime->CpvRecPoints() ;
+ TClonesArray * trackSegments = gime->TrackSegments();
- while ( (linkUp = (AliPHOSLink *)nextUp() ) ){
-
- if(EmcRecPoints->IndexOf(emc) == linkUp->GetEmc() ){
- ppsdUp = (AliPHOSPpsdRecPoint *) PpsdRecPointsUp->At(linkUp->GetPpsd()) ;
- break ;
- }
-
+ //Make arrays to mark clusters already chosen
+ Int_t * emcExist = 0;
+ if(fEmcLast > fEmcFirst)
+ emcExist = new Int_t[fEmcLast-fEmcFirst] ;
+
+ Int_t index;
+ for(index = 0; index <fEmcLast-fEmcFirst; index ++)
+ emcExist[index] = 1 ;
+
+ Bool_t * cpvExist = 0;
+ if(fCpvLast > fCpvFirst)
+ cpvExist = new Bool_t[fCpvLast-fCpvFirst] ;
+ for(index = 0; index <fCpvLast-fCpvFirst; index ++)
+ cpvExist[index] = kTRUE ;
+
+
+ // Finds the smallest links and makes pairs of CPV and EMC clusters with smallest distance
+ TIter nextUp(fLinkUpArray) ;
+
+ AliPHOSLink * linkUp ;
+
+ AliPHOSRecPoint * nullpointer = 0 ;
+
+ while ( (linkUp = static_cast<AliPHOSLink *>(nextUp()) ) ){
+
+ if(emcExist[linkUp->GetEmc()-fEmcFirst] != -1){ //without ppsd Up yet
+
+ if(cpvExist[linkUp->GetPpsd()-fCpvFirst]){ //CPV still exist
+
+ new ((* trackSegments)[fNTrackSegments])
+ AliPHOSTrackSegment(dynamic_cast<AliPHOSEmcRecPoint *>(emcRecPoints->At(linkUp->GetEmc())) ,
+ dynamic_cast<AliPHOSRecPoint *>(cpvRecPoints->At(linkUp->GetPpsd()))) ;
+ (dynamic_cast<AliPHOSTrackSegment *>(trackSegments->At(fNTrackSegments)))->SetIndexInList(fNTrackSegments);
+ fNTrackSegments++ ;
+
+ emcExist[linkUp->GetEmc()-fEmcFirst] = -1 ; //Mark emc that Cpv was found
+ //mark CPV recpoint as already used
+ cpvExist[linkUp->GetPpsd()-fCpvFirst] = kFALSE ;
+ } //if ppsdUp still exist
+ }
+ }
+
+ //look through emc recPoints left without CPV/PPSD
+ if(emcExist){ //if there is emc rec point
+ Int_t iEmcRP ;
+ for(iEmcRP = 0; iEmcRP < fEmcLast-fEmcFirst ; iEmcRP++ ){
+ if(emcExist[iEmcRP] > 0 ){
+ new ((*trackSegments)[fNTrackSegments])
+ AliPHOSTrackSegment(dynamic_cast<AliPHOSEmcRecPoint *>(emcRecPoints->At(iEmcRP+fEmcFirst)),
+ nullpointer) ;
+ (dynamic_cast<AliPHOSTrackSegment *>(trackSegments->At(fNTrackSegments)))->SetIndexInList(fNTrackSegments);
+ fNTrackSegments++;
+ }
}
- AliPHOSTrackSegment * subtr = new AliPHOSTrackSegment(emc, ppsdUp, ppsdLow ) ;
- trsl->Add(subtr) ;
-
- if(ppsdUp)
- PpsdRecPointsUp->RemoveAt(linkUp->GetPpsd()) ;
-
}
-
+ delete [] emcExist ;
+ delete [] cpvExist ;
}
//____________________________________________________________________________
-void AliPHOSTrackSegmentMakerv1::MakeTrackSegments(DigitsList * DL, RecPointsList * emcl,
- RecPointsList * ppsdl, TrackSegmentsList * trsl)
+void AliPHOSTrackSegmentMakerv1::Exec(Option_t * option)
{
- //main function, does the job
-
- Int_t PHOSMod = 1 ;
- Int_t emcStopedAt = 0 ;
- Int_t ppsdStopedAt = 0 ;
-
- TObjArray * EmcRecPoints = new TObjArray(100) ; //these arrays keeps pointers
- TObjArray * PpsdRecPointsUp = new TObjArray(100) ; //on RecPoints, which are
- TObjArray * PpsdRecPointsLow = new TObjArray(100) ; //kept in TClonesArray's emcl and ppsdl
-
+ // STEERing method
- TClonesArray * LinkLowArray = new TClonesArray("AliPHOSLink", 100);
- TClonesArray * LinkUpArray = new TClonesArray("AliPHOSLink", 100);
+ if(strstr(option,"tim"))
+ gBenchmark->Start("PHOSTSMaker");
+
+ if(strstr(option,"print")) {
+ Print() ;
+ return ;
+ }
- AliPHOSGeometry * geom = AliPHOSGeometry::GetInstance() ;
+ AliPHOSGetter * gime = AliPHOSGetter::Instance() ;
- while(PHOSMod <= geom->GetNModules() ){
+ const AliPHOSGeometry * geom = gime->PHOSGeometry() ;
+
+ Int_t nevents = gime->MaxEvent() ;
+ Int_t ievent ;
+
+ for(ievent = 0; ievent < nevents; ievent++) {
+ gime->Event(ievent,"R") ;
+ //Make some initializations
+ fNTrackSegments = 0 ;
+ fEmcFirst = 0 ;
+ fEmcLast = 0 ;
+ fCpvFirst = 0 ;
+ fCpvLast = 0 ;
- FillOneModule(DL, emcl, EmcRecPoints, ppsdl, PpsdRecPointsUp, PpsdRecPointsLow, PHOSMod , emcStopedAt, ppsdStopedAt) ;
-
- MakeLinks(EmcRecPoints,PpsdRecPointsUp, PpsdRecPointsLow, LinkLowArray, LinkUpArray) ;
+ gime->TrackSegments()->Clear();
+
+ // if(!ReadRecPoints(ievent)) continue; //reads RecPoints for event ievent
+
+ for(fModule = 1; fModule <= geom->GetNModules() ; fModule++ ) {
+ FillOneModule() ;
+ MakeLinks() ;
+ MakePairs() ;
+ }
+
+ WriteTrackSegments() ;
+
+ if(strstr(option,"deb"))
+ PrintTrackSegments(option);
+
+ //increment the total number of track segments per run
+ fTrackSegmentsInRun += gime->TrackSegments()->GetEntriesFast() ;
- MakePairs(EmcRecPoints,PpsdRecPointsUp, PpsdRecPointsLow, LinkLowArray, LinkUpArray, trsl) ;
-
- EmcRecPoints->Clear() ;
- PpsdRecPointsUp->Clear() ;
- PpsdRecPointsLow->Clear() ;
- LinkUpArray->Delete();
- LinkLowArray->Delete();
}
+
+ if(strstr(option,"tim")){
+ gBenchmark->Stop("PHOSTSMaker");
+ Info("Exec", "took %f seconds for making TS %f seconds per event",
+ gBenchmark->GetCpuTime("PHOSTSMaker"),
+ gBenchmark->GetCpuTime("PHOSTSMaker")/nevents) ;
+ }
+ Unload();
}
//____________________________________________________________________________
-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) ;
- Double_t shape = TMath::Exp( -r4 * (1. / (2.32 + 0.26 * r4) + 0.0316 / (1 + 0.0652 * r295) ) ) ;
- return shape ;
+void AliPHOSTrackSegmentMakerv1::Unload()
+{
+ AliPHOSGetter * gime = AliPHOSGetter::Instance() ;
+ gime->PhosLoader()->UnloadRecPoints() ;
+ gime->PhosLoader()->UnloadTracks() ;
}
//____________________________________________________________________________
-void AliPHOSTrackSegmentMakerv1::UnfoldClusters(DigitsList * DL, 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] ;
- AliPHOSGeometry * geom = AliPHOSGeometry::GetInstance() ;
-
- if( !FindFit(iniEmc, maxAt, maxAtEnergy, NPar, FitParameters) ) //Fit failed, return and remove cluster
- return ;
-
- Float_t xDigit ;
- Float_t zDigit ;
- Int_t RelId[4] ;
-
- Int_t Ndigits = iniEmc->GetMultiplicity() ;
- Float_t xpar ;
- Float_t zpar ;
- Float_t Epar ;
- Float_t Distance ;
- Float_t Ratio ;
- Float_t Efit[Ndigits] ;
- Int_t iparam ;
- Int_t iDigit ;
-
- AliPHOSDigit * digit ;
- AliPHOSEmcRecPoint * emcRP ;
- int * emcDigits = iniEmc->GetDigitsList() ;
- Float_t * emcEnergies = iniEmc->GetEnergiesList() ;
-
- Int_t iRecPoint = emcIn->GetEntries() ;
-
- for(iDigit = 0 ; iDigit < Ndigits ; iDigit ++){
- digit = (AliPHOSDigit *) emcDigits[iDigit];
- 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] ;
- iparam += 3 ;
- Distance = (xDigit - xpar) * (xDigit - xpar) + (zDigit - zpar) * (zDigit - zpar) ;
- Distance = TMath::Sqrt(Distance) ;
- Efit[iDigit] += Epar * ShowerShape(Distance) ;
- }
-
+void AliPHOSTrackSegmentMakerv1::Print()const
+{
+ // Print TrackSegmentMaker parameters
+
+ TString message("") ;
+ if( strcmp(GetName(), "") != 0 ) {
+ message = "\n======== AliPHOSTrackSegmentMakerv1 ========\n" ;
+ message += "Making Track segments\n" ;
+ message += "with parameters:\n" ;
+ message += " Maximal EMC - CPV (PPSD) distance (cm) %f\n" ;
+ message += "============================================\n" ;
+ Info("Print", message.Data(),fRcpv) ;
}
+ else
+ Info("Print", "AliPHOSTrackSegmentMakerv1 not initialized ") ;
+}
- iparam = 0 ;
- Float_t eDigit ;
-
- 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 ++){
- 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 ;
- emcRP->AddDigit( *digit,eDigit ) ;
- }
+//____________________________________________________________________________
+void AliPHOSTrackSegmentMakerv1::WriteTrackSegments()
+{
+ // Writes found TrackSegments to TreeR. Creates branches
+ // "PHOSTS" and "AliPHOSTrackSegmentMaker" with the same title.
+ // In the former branch found TrackSegments are stored, while
+ // in the latter all parameters, with which TS were made.
+ // ROOT does not allow overwriting existing branches, therefore
+ // first we check, if branches with the same title already exist.
+ // If yes - exits without writing.
- emcList->Add(emcRP) ;
+ AliPHOSGetter *gime = AliPHOSGetter::Instance() ;
- }
+ TClonesArray * trackSegments = gime->TrackSegments() ;
+ trackSegments->Expand(trackSegments->GetEntriesFast()) ;
+
+ TTree * treeT = gime->TreeT();
+
+ //First TS
+ Int_t bufferSize = 32000 ;
+ TBranch * tsBranch = treeT->Branch("PHOSTS",&trackSegments,bufferSize);
+ tsBranch->Fill() ;
+
+ gime->WriteTracks("OVERWRITE");
+ gime->WriteTrackSegmentMaker("OVERWRITE");
}
-//______________________________________________________________________________
-void AliPHOSTrackSegmentMakerv1::UnfoldingChiSquare(Int_t &NPar, Double_t *Grad, Double_t & fret, Double_t *x, Int_t iflag)
+
+
+//____________________________________________________________________________
+void AliPHOSTrackSegmentMakerv1::PrintTrackSegments(Option_t * option)
{
-// NUmber of paramters, Gradient , Chi squared, parameters, what to do
- AliPHOSGeometry * geom = AliPHOSGeometry::GetInstance() ;
- AliPHOSTrackSegmentMakerv1 TrS ;
-
- AliPHOSEmcRecPoint * emcRP = (AliPHOSEmcRecPoint *) gMinuit->GetObjectFit() ; //EmcRecPoint to fit
- int * emcDigits = emcRP->GetDigitsList() ;
- Float_t * emcEnergies = emcRP->GetEnergiesList() ;
- fret = 0. ;
- Int_t iparam ;
-
- if(iflag==2)
- for(iparam = 0 ; iparam < NPar ; iparam ++)
- Grad[iparam] = 0 ; //Will evaluate gradient
-
- Double_t Efit ;
-
- AliPHOSDigit * digit ;
- Int_t iDigit = 0 ;
- while ( (digit = (AliPHOSDigit *)emcDigits[iDigit] )){
- Int_t RelId[4] ;
- Float_t xDigit ;
- Float_t 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 = TMath::Sqrt( (xDigit - x[iParam]) * (xDigit - x[iParam]) +
- (zDigit - x[++iParam]) * (zDigit - x[iParam]) ) ;
- Efit += x[++iParam] * TrS.ShowerShape(Distance) ;
- iParam++ ;
- }
- Double_t sum = 2. * (Efit - emcEnergies[iDigit]) / emcEnergies[iDigit] ; //Here we assume, that sigma = sqrt(E)
- iParam = 0 ;
- while(iParam < NPar ){
- Double_t xpar = x[iParam] ;
- Double_t zpar = x[iParam+1] ;
- Double_t Epar = x[iParam+2] ;
- Double_t dr = TMath::Sqrt( (xDigit - xpar) * (xDigit - xpar) + (zDigit - zpar) * (zDigit - zpar) );
- Double_t shape = sum * TrS.ShowerShape(dr) ;
- Double_t r4 = dr*dr*dr*dr ;
- Double_t r295 = TMath::Power(dr,2.95) ;
- 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 * (zpar - zDigit) ; // Derivative over z
- Grad[iParam++] += shape ; // Derivative over energy
- }
- }
- Efit = 0;
- iparam = 0 ;
- while(iparam < NPar ){
- Double_t xpar = x[iparam] ;
- Double_t zpar = x[iparam+1] ;
- 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 * TrS.ShowerShape(Distance) ;
- }
- fret += (Efit-emcEnergies[iDigit])*(Efit-emcEnergies[iDigit])/emcEnergies[iDigit] ;
- //Here we assume, that sigma = sqrt(E)
- iDigit++ ;
+ // option deb - prints # of found TrackSegments
+ // option deb all - prints as well indexed of found RecParticles assigned to the TS
+
+ TClonesArray * trackSegments = AliPHOSGetter::Instance()->TrackSegments() ;
+
+ Info("PrintTrackSegments", "Results from TrackSegmentMaker:") ;
+ printf("nevent: %d\n", gAlice->GetEvNumber()) ;
+ printf(" Found %d TrackSegments\n", trackSegments->GetEntriesFast() );
+
+ if(strstr(option,"all")) { // printing found TS
+ printf("TrackSegment # EMC RP# CPV RP#\n") ;
+ Int_t index;
+ for (index = 0 ; index <trackSegments->GetEntriesFast() ; index++) {
+ AliPHOSTrackSegment * ts = (AliPHOSTrackSegment * )trackSegments->At(index) ;
+ printf(" %d %d %d \n", ts->GetIndexInList(), ts->GetEmcIndex(), ts->GetCpvIndex() ) ;
+ }
}
}