* about the suitability of this software for any purpose. It is *
* provided "as is" without express or implied warranty. *
**************************************************************************/
-/*
-$Log$
-Revision 1.4 2000/12/21 22:14:38 morsch
-Clean-up of coding rule violations.
-Revision 1.3 2000/10/02 21:28:09 fca
-Removal of useless dependecies via forward declarations
+/* $Id$ */
-Revision 1.2 2000/06/15 07:58:49 morsch
-Code from MUON-dev joined
-
-Revision 1.1.2.7 2000/06/09 22:06:29 morsch
-Some coding rule violations corrected. Will soon be obsolete.
-
-Revision 1.1.2.6 2000/05/02 07:15:29 morsch
-Put back TH1.h and TH2.h includes.
+////////////////////////////////////
+//
+// MUON track reconstructor in ALICE (class renamed from AliMUONEventReconstructor)
+//
+// This class contains as data:
+// * the parameters for the track reconstruction
+// * a pointer to the array of hits to be reconstructed (the event)
+// * a pointer to the array of segments made with these hits inside each station
+// * a pointer to the array of reconstructed tracks
+//
+// It contains as methods, among others:
+// * MakeEventToBeReconstructed to build the array of hits to be reconstructed
+// * MakeSegments to build the segments
+// * MakeTracks to build the tracks
+//
+////////////////////////////////////
-Revision 1.1.2.5 2000/02/17 18:12:43 morsch
-Corrections in trackf_read_spoint causing segmentation violations in previous version (I. Chevrot)
-New histos (I. Chevrot)
+#include <stdlib.h>
+#include <Riostream.h>
+#include <TDirectory.h>
+#include <TFile.h>
+#include <TMatrixD.h>
-Revision 1.1.2.4 2000/02/15 18:01:08 morsch
-Log messages
+#include "AliMUONTrackReconstructor.h"
+#include "AliMUON.h"
+#include "AliMUONConstants.h"
+#include "AliMUONHitForRec.h"
+#include "AliMUONTriggerTrack.h"
+#include "AliMUONTriggerCircuitNew.h"
+#include "AliMUONRawCluster.h"
+#include "AliMUONLocalTrigger.h"
+#include "AliMUONGlobalTrigger.h"
+#include "AliMUONSegment.h"
+#include "AliMUONTrack.h"
+#include "AliMUONTrackHit.h"
+#include "AliMagF.h"
+#include "AliRun.h" // for gAlice
+#include "AliRunLoader.h"
+#include "AliLoader.h"
+#include "AliMUONTrackK.h"
+#include "AliLog.h"
+
+//************* Defaults parameters for reconstruction
+const Double_t AliMUONTrackReconstructor::fgkDefaultMinBendingMomentum = 3.0;
+const Double_t AliMUONTrackReconstructor::fgkDefaultMaxBendingMomentum = 3000.0;
+const Double_t AliMUONTrackReconstructor::fgkDefaultMaxChi2 = 100.0;
+const Double_t AliMUONTrackReconstructor::fgkDefaultMaxSigma2Distance = 16.0;
+const Double_t AliMUONTrackReconstructor::fgkDefaultBendingResolution = 0.01;
+const Double_t AliMUONTrackReconstructor::fgkDefaultNonBendingResolution = 0.144;
+const Double_t AliMUONTrackReconstructor::fgkDefaultChamberThicknessInX0 = 0.03;
+// Simple magnetic field:
+// Value taken from macro MUONtracking.C: 0.7 T, hence 7 kG
+// Length and Position from reco_muon.F, with opposite sign:
+// Length = ZMAGEND-ZCOIL
+// Position = (ZMAGEND+ZCOIL)/2
+// to be ajusted differently from real magnetic field ????
+const Double_t AliMUONTrackReconstructor::fgkDefaultSimpleBValue = 7.0;
+const Double_t AliMUONTrackReconstructor::fgkDefaultSimpleBLength = 428.0;
+const Double_t AliMUONTrackReconstructor::fgkDefaultSimpleBPosition = 1019.0;
+const Double_t AliMUONTrackReconstructor::fgkDefaultEfficiency = 0.95;
+
+ClassImp(AliMUONTrackReconstructor) // Class implementation in ROOT context
+
+//__________________________________________________________________________
+AliMUONTrackReconstructor::AliMUONTrackReconstructor(AliLoader* loader, AliMUONData* data)
+ : TObject(),
+ fTrackMethod(1), //AZ - tracking method (1-default, 2-Kalman)
+ fMinBendingMomentum(fgkDefaultMinBendingMomentum),
+ fMaxBendingMomentum(fgkDefaultMaxBendingMomentum),
+ fMaxChi2(fgkDefaultMaxChi2),
+ fMaxSigma2Distance(fgkDefaultMaxSigma2Distance),
+ fBendingResolution(fgkDefaultBendingResolution),
+ fNonBendingResolution(fgkDefaultNonBendingResolution),
+ fChamberThicknessInX0(fgkDefaultChamberThicknessInX0),
+ fSimpleBValue(fgkDefaultSimpleBValue),
+ fSimpleBLength(fgkDefaultSimpleBLength),
+ fSimpleBPosition(fgkDefaultSimpleBPosition),
+ fEfficiency(fgkDefaultEfficiency),
+ fHitsForRecPtr(0x0),
+ fNHitsForRec(0),
+ fRecTracksPtr(0x0),
+ fNRecTracks(0),
+ fRecTrackHitsPtr(0x0),
+ fNRecTrackHits(0),
+ fMUONData(data),
+ fLoader(loader),
+ fMuons(0),
+ fTriggerTrack(new AliMUONTriggerTrack())
-Revision 1.1.2.3 2000/02/15 17:59:01 morsch
-Log message added
+{
+ // Constructor for class AliMUONTrackReconstructor
+ SetReconstructionParametersToDefaults();
+
+ // Memory allocation for the TClonesArray of hits for reconstruction
+ // Is 10000 the right size ????
+ fHitsForRecPtr = new TClonesArray("AliMUONHitForRec", 10000);
+
+ // Memory allocation for the TClonesArray's of segments in stations
+ // Is 2000 the right size ????
+ for (Int_t st = 0; st < AliMUONConstants::NTrackingCh()/2; st++) {
+ fSegmentsPtr[st] = new TClonesArray("AliMUONSegment", 2000);
+ fNSegments[st] = 0; // really needed or GetEntriesFast sufficient ????
+ }
+ // Memory allocation for the TClonesArray of reconstructed tracks
+ // Is 10 the right size ????
+ fRecTracksPtr = new TClonesArray("AliMUONTrack", 10);
+
+ // Memory allocation for the TClonesArray of hits on reconstructed tracks
+ // Is 100 the right size ????
+ fRecTrackHitsPtr = new TClonesArray("AliMUONTrackHit", 100);
+
+ // Sign of fSimpleBValue according to sign of Bx value at (50,50,-950).
+ Float_t b[3], x[3];
+ x[0] = 50.; x[1] = 50.; x[2] = -950.;
+ gAlice->Field()->Field(x, b);
+ fSimpleBValue = TMath::Sign(fSimpleBValue,(Double_t) b[0]);
+ fSimpleBPosition = TMath::Sign(fSimpleBPosition,(Double_t) x[2]);
+ // See how to get fSimple(BValue, BLength, BPosition)
+ // automatically calculated from the actual magnetic field ????
+
+ AliDebug(1,"AliMUONTrackReconstructor constructed with defaults");
+ if ( AliLog::GetGlobalDebugLevel()>0) Dump();
+ AliDebug(1,"Magnetic field from root file:");
+ if ( AliLog::GetGlobalDebugLevel()>0) gAlice->Field()->Dump();
+
+ // initialize container
+ // fMUONData = new AliMUONData(fLoader,"MUON","MUON");
+ //fMUONData = data;
+
+ return;
+}
-Revision 1.1.2.2 2000/02/15 18:54:56 morsch
-Reference between track contributing to reconstructed hit and particle corrected
-*/
+ //__________________________________________________________________________
+AliMUONTrackReconstructor::~AliMUONTrackReconstructor(void)
+{
+ // Destructor for class AliMUONTrackReconstructor
+ delete fHitsForRecPtr; // Correct destruction of everything ???? or delete [] ????
+ for (Int_t st = 0; st < AliMUONConstants::NTrackingCh()/2; st++)
+ delete fSegmentsPtr[st]; // Correct destruction of everything ????
-#include "AliCallf77.h"
-#include "AliMUONTrackReconstructor.h"
-#include "AliRun.h"
-#include "AliMUON.h"
-#include "AliMC.h"
+ delete fTriggerTrack;
+}
-#include "AliMUONHit.h"
-#include "AliMUONPadHit.h"
-#include "AliMUONDigit.h"
-#include "AliMUONRawCluster.h"
-#include "AliMUONReconstHit.h"
-
-#include "AliPDG.h"
-
-#include <TRandom.h>
-#include <TFile.h>
-#include <TH1.h>
-#include <TH2.h>
-#include <TTree.h>
-#include <TParticle.h>
-#include <TMinuit.h>
-#include <iostream.h>
-
-#ifndef WIN32
-# define reco_init reco_init_
-# define cutpxz cutpxz_
-# define sigmacut sigmacut_
-# define xpreci xpreci_
-# define ypreci ypreci_
-# define reconstmuon reconstmuon_
-# define reconstmuon2 reconstmuon2_
-# define trackf_read_geant trackf_read_geant_
-# define trackf_read_fit trackf_read_fit_
-# define trackf_read_spoint trackf_read_spoint_
-# define chfill chfill_
-# define chfill2 chfill2_
-# define chf1 chf1_
-# define chfnt chfnt_
-# define hist_create hist_create_
-# define hist_closed hist_closed_
-# define rndm rndm_
-# define fcn fcn_
-# define trackf_fit trackf_fit_
-# define prec_fit prec_fit_
-# define fcnfit fcnfit_
-# define reco_term reco_term_
-#else
-# define reco_init RECO_INIT
-# define cutpxz CUTPXZ
-# define sigmacut SIGMACUT
-# define xpreci XPRECI
-# define ypreci YPRECI
-# define reconstmuon RECONSTMUON
-# define reconstmuon2 RECONSTMUON2
-# define trackf_read_geant TRACKF_READ_GEANT
-# define trackf_read_fit TRACKF_READ_FIT
-# define trackf_read_spoint TRACKF_READ_SPOINT
-# define chfill CHFILL
-# define chfill2 CHFILL2
-# define chf1 CHF1
-# define chfnt CHFNT
-# define hist_create HIST_CREATE
-# define hist_closed HIST_CLOSED
-# define rndm RNDM
-# define fcn FCN
-# define trackf_fit TRACKF_FIT
-# define prec_fit PREC_FIT
-# define fcnfit FCNFIT
-# define reco_term RECO_TERM
-#endif
-
-extern "C"
+ //__________________________________________________________________________
+void AliMUONTrackReconstructor::SetReconstructionParametersToDefaults(void)
{
-void type_of_call reco_init(Double_t &, Double_t &, Double_t &);
-void type_of_call reco_term();
-void type_of_call cutpxz(Double_t &);
-void type_of_call sigmacut(Double_t &);
-void type_of_call xpreci(Double_t &);
-void type_of_call ypreci(Double_t &);
-void type_of_call reconstmuon(Int_t &, Int_t &, Int_t &, Int_t &, Int_t &);
-void type_of_call reconstmuon2(Int_t &, Int_t &, Int_t &);
-void type_of_call trackf_read_fit(Int_t &, Int_t &, Int_t &, Int_t *, Double_t *, Double_t *);
-void type_of_call trackf_read_geant(Int_t *, Double_t *, Double_t *, Double_t *, Int_t *, Int_t *, Double_t *, Double_t *, Double_t *, Double_t *,Int_t &, Double_t *, Double_t *, Double_t *, Int_t &, Int_t &, Double_t *, Double_t *, Double_t *, Double_t *);
-void type_of_call trackf_read_spoint(Int_t *, Double_t *, Double_t *, Double_t *, Int_t *, Int_t *, Double_t *, Double_t *, Double_t *, Double_t *,Int_t &, Double_t *, Double_t *, Double_t *, Int_t &, Int_t &, Double_t *, Double_t *, Double_t *, Double_t *);
-void type_of_call chfill(Int_t &, Float_t &, Float_t &, Float_t &);
-void type_of_call chfill2(Int_t &, Float_t &, Float_t &, Float_t &);
-void type_of_call chf1(Int_t &, Float_t &, Float_t &);
-void type_of_call chfnt(Int_t &, Int_t &, Int_t *, Int_t *, Float_t *, Float_t *, Float_t *, Float_t *, Float_t *, Float_t *, Float_t *, Float_t *);
-void type_of_call hist_create();
-void type_of_call hist_closed();
-void type_of_call fcnf(Int_t &, Double_t *, Double_t &, Double_t *, Int_t);
-void type_of_call fcn(Int_t &, Double_t *, Double_t &, Double_t *, Int_t &, Int_t &);
-void type_of_call trackf_fit(Int_t &, Double_t *, Double_t *, Double_t &, Double_t &, Double_t &, Double_t &, Double_t &);
-void type_of_call prec_fit(Double_t &, Double_t &, Double_t &, Double_t &, Double_t&, Double_t &, Double_t &, Double_t &, Double_t &, Double_t &, Double_t &, Double_t &, Double_t &, Double_t &, Double_t &);
-void type_of_call fcnfitf(Int_t &, Double_t *, Double_t &, Double_t *, Int_t);
-void type_of_call fcnfit(Int_t &, Double_t *, Double_t &, Double_t *, Int_t &, Int_t &);
-Float_t type_of_call rndm() {return gRandom->Rndm();}
-void type_of_call fit_trace(Float_t &, Float_t &, Float_t &, Float_t &, Float_t &, Float_t &, Int_t &, Int_t &, Int_t &, Int_t &);
+ // Set reconstruction parameters to default values
+ // Would be much more convenient with a structure (or class) ????
+
+ // ******** Parameters for making HitsForRec
+ // minimum radius,
+ // like in TRACKF_STAT:
+ // 2 degrees for stations 1 and 2, or ch(0...) from 0 to 3;
+ // 30 cm for stations 3 to 5, or ch(0...) from 4 to 9
+ for (Int_t ch = 0; ch < AliMUONConstants::NTrackingCh(); ch++) {
+ if (ch < 4) fRMin[ch] = TMath::Abs(AliMUONConstants::DefaultChamberZ(ch)) *
+ 2.0 * TMath::Pi() / 180.0;
+ else fRMin[ch] = 30.0;
+ // maximum radius at 10 degrees and Z of chamber
+ fRMax[ch] = TMath::Abs(AliMUONConstants::DefaultChamberZ(ch)) *
+ 10.0 * TMath::Pi() / 180.0;
+ }
+
+ // ******** Parameters for making segments
+ // should be parametrized ????
+ // according to interval between chambers in a station ????
+ // Maximum distance in non bending plane
+ // 5 * 0.22 just to remember the way it was made in TRACKF_STAT
+ // SIGCUT*DYMAX(IZ)
+ for (Int_t st = 0; st < AliMUONConstants::NTrackingCh()/2; st++)
+ fSegmentMaxDistNonBending[st] = 5. * 0.22;
+ // Maximum distance in bending plane:
+ // values from TRACKF_STAT, corresponding to (J psi 20cm),
+ // scaled to the real distance between chambers in a station
+ fSegmentMaxDistBending[0] = TMath::Abs( 1.5 *
+ (AliMUONConstants::DefaultChamberZ(1) - AliMUONConstants::DefaultChamberZ(0)) / 20.0);
+ fSegmentMaxDistBending[1] = TMath::Abs( 1.5 *
+ (AliMUONConstants::DefaultChamberZ(3) - AliMUONConstants::DefaultChamberZ(2)) / 20.0);
+ fSegmentMaxDistBending[2] = TMath::Abs( 3.0 *
+ (AliMUONConstants::DefaultChamberZ(5) - AliMUONConstants::DefaultChamberZ(4)) / 20.0);
+ fSegmentMaxDistBending[3] = TMath::Abs( 6.0 *
+ (AliMUONConstants::DefaultChamberZ(7) - AliMUONConstants::DefaultChamberZ(6)) / 20.0);
+ fSegmentMaxDistBending[4] = TMath::Abs( 6.0 *
+ (AliMUONConstants::DefaultChamberZ(9) - AliMUONConstants::DefaultChamberZ(8)) / 20.0);
+
+ return;
}
-static TTree *gAliNtupleGlobal;
-static TFile *gAliFileGlobal;
-static TTree *gAliTreeK1;
-static TTree *gAliTrH1;
-static TClonesArray *gAliHits2; //List of hits for one track only
-static TClonesArray *gAliParticles2; //List of particles in the Kine tree
-
-
-// variables of the tracking ntuple
-struct {
- Int_t ievr; // number of event
- Int_t ntrackr; // number of tracks per event
- Int_t istatr[500]; // 1 = good muon, 2 = ghost, 0 = something else
- Int_t isignr[500]; // sign of the track
- Float_t pxr[500]; // x momentum of the reconstructed track
- Float_t pyr[500]; // y momentum of the reconstructed track
- Float_t pzr[500]; // z momentum of the reconstructed track
- Float_t zvr[500]; // z vertex
- Float_t chi2r[500]; // chi2 of the fit of the track with the field map
- Float_t pxv[500]; // x momentum at vertex
- Float_t pyv[500]; // y momentum at vertex
- Float_t pzv[500]; // z momentum at vertex
-} NtupleSt;
-
-ClassImp(AliMUONTrackReconstructor)
-
-//___________________________________________________
-AliMUONTrackReconstructor::AliMUONTrackReconstructor()
+//__________________________________________________________________________
+Double_t AliMUONTrackReconstructor::GetImpactParamFromBendingMomentum(Double_t BendingMomentum) const
{
-// Constructor
-//
- fSPxzCut = 3.0;
- fSSigmaCut = 4.0;
- fSXPrec = 0.01;
- fSYPrec = 0.144;
- fFileName = 0;
+ // Returns impact parameter at vertex in bending plane (cm),
+ // from the signed bending momentum "BendingMomentum" in bending plane (GeV/c),
+ // using simple values for dipole magnetic field.
+ // The sign of "BendingMomentum" is the sign of the charge.
+ return (-0.0003 * fSimpleBValue * fSimpleBLength * fSimpleBPosition /
+ BendingMomentum);
}
-//_____________________________________________________________________________
-void AliMUONTrackReconstructor::Reconst2(Int_t &ifit, Int_t &idebug, Int_t &nev)
+//__________________________________________________________________________
+Double_t AliMUONTrackReconstructor::GetBendingMomentumFromImpactParam(Double_t ImpactParam) const
{
-//
-//
- reconstmuon2(ifit,idebug,nev);
+ // Returns signed bending momentum in bending plane (GeV/c),
+ // the sign being the sign of the charge for particles moving forward in Z,
+ // from the impact parameter "ImpactParam" at vertex in bending plane (cm),
+ // using simple values for dipole magnetic field.
+ return (-0.0003 * fSimpleBValue * fSimpleBLength * fSimpleBPosition /
+ ImpactParam);
}
-//_____________________________________________________________________________
-void AliMUONTrackReconstructor::Reconst(Int_t &ifit, Int_t &idebug, Int_t bgdEvent, Int_t &nev, Int_t &idres, Int_t &ireadgeant, Option_t *option,Text_t *filename)
+//__________________________________________________________________________
+void AliMUONTrackReconstructor::EventReconstruct(void)
{
- //
- // open kine and hits tree of background file for reconstruction of geant hits
- // call tracking fortran program
- static Bool_t first=kTRUE;
- static TFile *pFile;
- char *addBackground = strstr(option,"Add");
-
- if (addBackground ) { // only in case of background with geant hits
- if(first) {
- fFileName=filename;
- cout<<"filename "<<fFileName<<endl;
- pFile=new TFile(fFileName);
- cout<<"I have opened "<<fFileName<<" file "<<endl;
- gAliHits2 = new TClonesArray("AliMUONHit",1000);
- gAliParticles2 = new TClonesArray("TParticle",1000);
- first=kFALSE;
- }
- pFile->cd();
- if(gAliHits2) gAliHits2->Clear();
- if(gAliParticles2) gAliParticles2->Clear();
- if(gAliTrH1) delete gAliTrH1;
- gAliTrH1=0;
- if(gAliTreeK1) delete gAliTreeK1;
- gAliTreeK1=0;
- // Get Hits Tree header from file
- char treeName[20];
- sprintf(treeName,"TreeH%d",bgdEvent);
- gAliTrH1 = (TTree*)gDirectory->Get(treeName);
- // printf("gAliTrH1 %p of treename %s for event %d \n",gAliTrH1,treeName,bgdEvent);
- if (!gAliTrH1) {
- printf("ERROR: cannot find Hits Tree for event:%d\n",bgdEvent);
- }
- // set branch addresses
- TBranch *branch;
- char branchname[30];
- AliMUON *pMUON = (AliMUON*) gAlice->GetModule("MUON");
- sprintf(branchname,"%s",pMUON->GetName());
- if (gAliTrH1 && gAliHits2) {
- branch = gAliTrH1->GetBranch(branchname);
- if (branch) branch->SetAddress(&gAliHits2);
- }
- gAliTrH1->GetEntries();
- // get the Kine tree
- sprintf(treeName,"TreeK%d",bgdEvent);
- gAliTreeK1 = (TTree*)gDirectory->Get(treeName);
- if (!gAliTreeK1) {
- printf("ERROR: cannot find Kine Tree for event:%d\n",bgdEvent);
- }
- // set branch addresses
- if (gAliTreeK1)
- gAliTreeK1->SetBranchAddress("Particles", &gAliParticles2);
- gAliTreeK1->GetEvent(0);
-
- // get back to the first file
- TTree *treeK = gAlice->TreeK();
- TFile *file1 = 0;
- if (treeK) file1 = treeK->GetCurrentFile();
- file1->cd();
-
- } // end if addBackground
-
- // call tracking fortran program
- reconstmuon(ifit,idebug,nev,idres,ireadgeant);
+ // To reconstruct one event
+ AliDebug(1,"Enter EventReconstruct");
+ ResetTracks(); //AZ
+ ResetTrackHits(); //AZ
+ ResetSegments(); //AZ
+ ResetHitsForRec(); //AZ
+ MakeEventToBeReconstructed();
+ MakeSegments();
+ MakeTracks();
+ if (fMUONData->IsTriggerTrackBranchesInTree())
+ ValidateTracksWithTrigger();
+
+ // Add tracks to MUON data container
+ for(Int_t i=0; i<GetNRecTracks(); i++) {
+ AliMUONTrack * track = (AliMUONTrack*) GetRecTracksPtr()->At(i);
+ fMUONData->AddRecTrack(*track);
+ }
+
+ return;
}
-//________________________________________________________________________________
-void AliMUONTrackReconstructor::Init(Double_t &seff, Double_t &sb0, Double_t &sbl3)
+//__________________________________________________________________________
+void AliMUONTrackReconstructor::EventReconstructTrigger(void)
{
- //
- // introduce in fortran program somme parameters and cuts for tracking
- // create output file "reconst.root" (histos + ntuple)
- cutpxz(fSPxzCut); // Pxz cut (GeV/c) to begin the track finding
- sigmacut(fSSigmaCut); // Number of sigmas delimiting the searching areas
- xpreci(fSXPrec); // Chamber precision in X (cm)
- ypreci(fSYPrec); // Chamber precision in Y (cm)
- reco_init(seff,sb0,sbl3);
+ // To reconstruct one event
+ AliDebug(1,"Enter EventReconstructTrigger");
+ MakeTriggerTracks();
+ return;
}
-//__________________________________________
-void AliMUONTrackReconstructor::FinishEvent()
+ //__________________________________________________________________________
+void AliMUONTrackReconstructor::ResetHitsForRec(void)
{
-// Finish
- TTree *treeK = gAlice->TreeK();
- TFile *file1 = 0;
- if (treeK) file1 = treeK->GetCurrentFile();
- file1->cd();
+ // To reset the array and the number of HitsForRec,
+ // and also the number of HitsForRec
+ // and the index of the first HitForRec per chamber
+ if (fHitsForRecPtr) fHitsForRecPtr->Delete();
+ fNHitsForRec = 0;
+ for (Int_t ch = 0; ch < AliMUONConstants::NTrackingCh(); ch++)
+ fNHitsForRecPerChamber[ch] = fIndexOfFirstHitForRecPerChamber[ch] = 0;
+ return;
}
-//_____________________________________
-void AliMUONTrackReconstructor::Close()
+ //__________________________________________________________________________
+void AliMUONTrackReconstructor::ResetSegments(void)
{
- //
- // write histos and ntuple to "reconst.root" file
- reco_term();
+ // To reset the TClonesArray of segments and the number of Segments
+ // for all stations
+ for (Int_t st = 0; st < AliMUONConstants::NTrackingCh()/2; st++) {
+ if (fSegmentsPtr[st]) fSegmentsPtr[st]->Clear();
+ fNSegments[st] = 0;
+ }
+ return;
}
-//________________________________________________________
-void chfill(Int_t &id, Float_t &x, Float_t &y, Float_t &w)
+ //__________________________________________________________________________
+void AliMUONTrackReconstructor::ResetTracks(void)
{
- //
- // fill histo like hfill in fortran
- char name[5];
- sprintf(name,"h%d",id);
- TH1F *h1 = (TH1F*) gDirectory->Get(name);
- h1->Fill(x);
+ // To reset the TClonesArray of reconstructed tracks
+ if (fRecTracksPtr) fRecTracksPtr->Delete();
+ // Delete in order that the Track destructors are called,
+ // hence the space for the TClonesArray of pointers to TrackHit's is freed
+ fNRecTracks = 0;
+ return;
}
-//_________________________________________________________
-void chfill2(Int_t &id, Float_t &x, Float_t &y, Float_t &w)
+
+ //__________________________________________________________________________
+void AliMUONTrackReconstructor::ResetTrackHits(void)
{
- //
- // fill histo like hfill2 in fortran
- char name[5];
- sprintf(name,"h%d",id);
- TH2F *h2 = (TH2F*) gDirectory->Get(name);
- h2->Fill(x,y,w);
+ // To reset the TClonesArray of hits on reconstructed tracks
+ if (fRecTrackHitsPtr) fRecTrackHitsPtr->Clear();
+ fNRecTrackHits = 0;
+ return;
}
-//__________________________________________
-void chf1(Int_t &id, Float_t &x, Float_t &w)
+ //__________________________________________________________________________
+void AliMUONTrackReconstructor::MakeEventToBeReconstructed(void)
{
- //
- // fill histo like hf1 in fortran
- char name[5];
- sprintf(name,"h%d",id);
- TH1F *h1 = (TH1F*) gDirectory->Get(name);
- h1->Fill(x,w);
+ // To make the list of hits to be reconstructed,
+ // either from the track ref. hits or from the raw clusters
+ // according to the parameter set for the reconstructor
+// TString evfoldname = AliConfig::GetDefaultEventFolderName();//to be interfaced properly
+
+// AliRunLoader* rl = AliRunLoader::GetRunLoader(evfoldname);
+// if (rl == 0x0)
+// {
+// Error("MakeEventToBeReconstructed",
+// "Can not find Run Loader in Event Folder named %s.",
+// evfoldname.Data());
+// return;
+// }
+// AliLoader* gime = rl->GetLoader("MUONLoader");
+// if (gime == 0x0)
+// {
+// Error("MakeEventToBeReconstructed","Can not get MUON Loader from Run Loader.");
+// return;
+// }
+ AliRunLoader *runLoader = fLoader->GetRunLoader();
+
+ AliDebug(1,"Enter MakeEventToBeReconstructed");
+ //AZ ResetHitsForRec();
+
+ // Reconstruction from raw clusters
+ // AliMUON *MUON = (AliMUON*) gAlice->GetModule("MUON"); // necessary ????
+ // Security on MUON ????
+ // TreeR assumed to be be "prepared" in calling function
+ // by "MUON->GetTreeR(nev)" ????
+ TTree *treeR = fLoader->TreeR();
+
+ //AZ? fMUONData->SetTreeAddress("RC");
+ AddHitsForRecFromRawClusters(treeR);
+ // No sorting: it is done automatically in the previous function
+
+
+ AliDebug(1,"End of MakeEventToBeReconstructed");
+ if (AliLog::GetGlobalDebugLevel() > 0) {
+ AliDebug(1, Form("NHitsForRec: %d",fNHitsForRec));
+ for (Int_t ch = 0; ch < AliMUONConstants::NTrackingCh(); ch++) {
+ AliDebug(1, Form("Chamber(0...): %d",ch));
+ AliDebug(1, Form("NHitsForRec: %d", fNHitsForRecPerChamber[ch]));
+ AliDebug(1, Form("Index(first HitForRec): %d", fIndexOfFirstHitForRecPerChamber[ch]));
+ for (Int_t hit = fIndexOfFirstHitForRecPerChamber[ch];
+ hit < fIndexOfFirstHitForRecPerChamber[ch] + fNHitsForRecPerChamber[ch];
+ hit++) {
+ AliDebug(1, Form("HitForRec index(0...): %d",hit));
+ ((*fHitsForRecPtr)[hit])->Dump();
+ }
+ }
+ }
+ return;
}
-//_________________
-void hist_create()
+ //__________________________________________________________________________
+void AliMUONTrackReconstructor::SortHitsForRecWithIncreasingChamber()
{
- //
- // Create an output file ("reconst.root")
- // Create some histograms and an ntuple
-
- gAliFileGlobal = new TFile("reconst.root","RECREATE","Ntuple - reconstruction");
-
- gAliNtupleGlobal = new TTree("ntuple","Reconst ntuple");
- gAliNtupleGlobal->Branch("ievr",&NtupleSt.ievr,"ievr/I");
- gAliNtupleGlobal->Branch("ntrackr",&NtupleSt.ntrackr,"ntrackr/I");
- gAliNtupleGlobal->Branch("istatr",&NtupleSt.istatr[0],"istatr[500]/I");
- gAliNtupleGlobal->Branch("isignr",&NtupleSt.isignr[0],"isignr[500]/I");
- gAliNtupleGlobal->Branch("pxr",&NtupleSt.pxr[0],"pxr[500]/F");
- gAliNtupleGlobal->Branch("pyr",&NtupleSt.pyr[0],"pyr[500]/F");
- gAliNtupleGlobal->Branch("pzr",&NtupleSt.pzr[0],"pzr[500]/F");
- gAliNtupleGlobal->Branch("zvr",&NtupleSt.zvr[0],"zvr[500]/F");
- gAliNtupleGlobal->Branch("chi2r",&NtupleSt.chi2r[0],"chi2r[500]/F");
- gAliNtupleGlobal->Branch("pxv",&NtupleSt.pxv[0],"pxv[500]/F");
- gAliNtupleGlobal->Branch("pyv",&NtupleSt.pyv[0],"pyv[500]/F");
- gAliNtupleGlobal->Branch("pzv",&NtupleSt.pzv[0],"pzv[500]/F");
-
- // test aliroot
-
- new TH1F("h100","particule id du hit geant",20,0.,20.);
- new TH1F("h101","position en x du hit geant",100,-200.,200.);
- new TH1F("h102","position en y du hit geant",100,-200.,200.);
- new TH1F("h103","chambre de tracking concernee",15,0.,14.);
- new TH1F("h104","moment ptot du hit geant",50,0.,100.);
- new TH1F("h105","px au vertex",50,0.,20.);
- new TH1F("h106","py au vertex",50,0.,20.);
- new TH1F("h107","pz au vertex",50,0.,20.);
- new TH1F("h108","position zv",50,-15.,15.);
- new TH1F("h109","position en x du hit reconstruit",100,-300.,300.);
- new TH1F("h110","position en y du hit reconstruit",100,-300.,300.);
- new TH1F("h111","delta x station 1",100,-0.3,0.3);
- new TH1F("h112","delta x station 2",100,-0.3,0.3);
- new TH1F("h113","delta x station 3",100,-0.3,0.3);
- new TH1F("h114","delta x station 4",100,-0.5,0.5);
- new TH1F("h115","delta x station 5",100,-0.5,0.5);
- new TH1F("h116","delta x station 1",100,-2,2);
- new TH1F("h117","delta x station 2",100,-2,2);
- new TH1F("h121","delta y station 1",100,-0.04,0.04);
- new TH1F("h122","delta y station 2",100,-0.04,0.04);
- new TH1F("h123","delta y station 3",100,-0.04,0.04);
- new TH1F("h124","delta y station 4",100,-0.04,0.04);
- new TH1F("h125","delta y station 5",100,-0.04,0.04);
-
- /* char hname[30];
- char hname1[30];
- for (int i=0;i<10;i++) {
- sprintf(hname,"deltax%d",i);
- sprintf(hname1,"h12%d",i);
- new TH1F(hname1,hname ,100,-0.4,0.4);
- sprintf(hname,"deltay%d",i);
- sprintf(hname1,"h13%d",i);
- new TH1F(hname1,hname ,100,-0.4,0.4);
- }
- */
- new TH2F("h2000","VAR X st. 5",30,3.0,183.0,100,0.,25.);
- new TH2F("h2001","VAR Y st. 5",30,3.0,183.0,100,0.,25.);
-
- new TH2F("h2500","P vs X HHIT",30,3.0,183.0,200,0.,200.);
- new TH2F("h2501","P vs X HHIT**2",30,3.0,183.0,200,0.,5000.);
- new TH2F("h2502","P vs X EPH2 st. 5",30,3.0,183.0,100,0.,0.000005);
- new TH2F("h2503","P vs X EAL2 st. 5",30,3.0,183.0,100,0.,0.01);
- //new TH2F("h2504","P vs X EXM2 st. 5",30,3.0,183.0,100,0.,1.5);
- new TH2F("h2504","P vs X EXM2 st. 5",30,3.0,183.0,100,0.,0.1);
- new TH2F("h2505","P vs X EYM2 st. 5",30,3.0,183.0,100,0.,30.);
-
- new TH2F("h2507","P vs X EPH st. 5",30,3.0,183.0,100,0.,0.003);
- new TH2F("h2508","P vs X EAL st. 5",30,3.0,183.0,100,0.,0.3);
- //new TH2F("h2509","P vs X EXM st. 5",30,3.0,183.0,100,0.,1.5);
- new TH2F("h2509","P vs X EXM st. 5",30,3.0,183.0,100,0.,0.4);
- new TH2F("h2510","P vs X EYM st. 5",30,3.0,183.0,100,0.,30.);
-
- new TH2F("h2511","P vs X EPH cut st. 5",30,3.0,183.0,100,0.,0.01);
- new TH2F("h2512","P vs X EAL cut st. 5",30,3.0,183.0,100,0.,0.3);
- //new TH2F("h2513","P vs X EXM cut st. 5",30,3.0,183.0,100,0.,1.5);
- new TH2F("h2513","P vs X EXM cut st. 5",30,3.0,183.0,100,0.,0.4);
- new TH2F("h2514","P vs X EYM cut st. 5",30,3.0,183.0,100,0.,30.);
- // 4
- new TH2F("h2400","P vs X HHIT",30,3.0,183.0,200,0.,200.);
- new TH2F("h2401","P vs X HHIT**2",30,3.0,183.0,200,0.,5000.);
- new TH2F("h2402","P vs X EPH2 st. 4",30,3.0,183.0,100,0.,0.000005);
- new TH2F("h2403","P vs X EAL2 st. 4",30,3.0,183.0,100,0.,0.05);
- //new TH2F("h2404","P vs X EXM2 st. 4",30,3.0,183.0,100,0.,1.5);
- new TH2F("h2404","P vs X EXM2 st. 4",30,3.0,183.0,100,0.,0.1);
- new TH2F("h2405","P vs X EYM2 st. 4",30,3.0,183.0,100,0.,30.);
-
- new TH2F("h2407","P vs X EPH st. 4",30,3.0,183.0,100,0.,0.003);
- new TH2F("h2408","P vs X EAL st. 4",30,3.0,183.0,100,0.,0.3);
- //new TH2F("h2409","P vs X EXM st. 4",30,3.0,183.0,100,0.,1.5);
- new TH2F("h2409","P vs X EXM st. 4",30,3.0,183.0,100,0.,0.1);
- new TH2F("h2410","P vs X EYM st. 4",30,3.0,183.0,100,0.,30.);
-
- new TH2F("h2411","P vs X EPH cut st. 4",30,3.0,183.0,100,0.,0.01);
- new TH2F("h2412","P vs X EAL cut st. 4",30,3.0,183.0,100,0.,0.3);
- //new TH2F("h2413","P vs X EXM cut st. 4",30,3.0,183.0,100,0.,1.5);
- new TH2F("h2413","P vs X EXM cut st. 4",30,3.0,183.0,100,0.,0.1);
- new TH2F("h2414","P vs X EYM cut st. 4",30,3.0,183.0,100,0.,30.);
- // 3
- new TH1F("h2301","P2",30,3.0,183.0);
- new TH2F("h2302","P2 vs X EPH2 st. 3",30,3.0,183.0,100,0.,0.0006);
- new TH2F("h2303","P2 vs X EAL2 st. 3",30,3.0,183.0,100,0.,0.0005);
- //new TH2F("h2304","P2 vs X EXM2 st. 3",30,3.0,183.0,100,0.,1.5);
- new TH2F("h2304","P2 vs X EXM2 st. 3",30,3.0,183.0,100,0.,2.);
- new TH2F("h2305","P2 vs X EYM2 st. 3",30,3.0,183.0,100,0.,3.);
-
- new TH2F("h2307","P vs X EPH2 st. 3",30,3.0,183.0,100,0.,0.0006);
- new TH2F("h2308","P vs X EAL2 st. 3",30,3.0,183.0,100,0.,0.005);
- //new TH2F("h2309","P vs X EXM2 st. 3",30,3.0,183.0,100,0.,1.5);
- new TH2F("h2309","P vs X EXM2 st. 3",30,3.0,183.0,100,0.,2.);
- new TH2F("h2310","P vs X EYM2 st. 3",30,3.0,183.0,100,0.,3.);
-
- new TH2F("h2311","P vs X EPH cut st. 3",30,3.0,183.0,100,0.,0.06);
- new TH2F("h2312","P vs X EAL cut st. 3",30,3.0,183.0,100,0.,0.05);
- //new TH2F("h2313","P vs X EXM cut st. 3",30,3.0,183.0,100,0.,1.5);
- new TH2F("h2313","P vs X EXM cut st. 3",30,3.0,183.0,100,0.,6.);
- new TH2F("h2314","P vs X EYM cut st. 3",30,3.0,183.0,100,0.,7.);
-
- new TH2F("h2315","P2 vs X EPH cut st. 3",30,3.0,183.0,100,0.,0.06);
- new TH2F("h2316","P2 vs X EAL cut st. 3",30,3.0,183.0,100,0.,0.05);
- //new TH2F("h2317","P2 vs X EXM cut st. 3",30,3.0,183.0,100,0.,1.5);
- new TH2F("h2317","P2 vs X EXM cut st. 3",30,3.0,183.0,100,0.,6.);
- new TH2F("h2318","P2 vs X EYM cut st. 3",30,3.0,183.0,100,0.,7.);
-
- // 2
- new TH1F("h2201","P2",30,3.0,183.0);
- new TH2F("h2202","P2 vs X EPH2 st. 2",30,3.0,183.0,100,0.,0.0006);
- new TH2F("h2203","P2 vs X EAL2 st. 2",30,3.0,183.0,100,0.,0.005);
- //new TH2F("h2204","P2 vs X EXM2 st. 2",30,3.0,183.0,100,0.,1.5);
- new TH2F("h2204","P2 vs X EXM2 st. 2",30,3.0,183.0,100,0.,7.);
- new TH2F("h2205","P2 vs X EYM2 st. 2",30,3.0,183.0,100,0.,5.);
-
- new TH2F("h2207","P vs X EPH2 st. 2",30,3.0,183.0,100,0.,0.0006);
- new TH2F("h2208","P vs X EAL2 st. 2",30,3.0,183.0,100,0.,0.005);
- //new TH2F("h2209","P vs X EXM2 st. 2",30,3.0,183.0,100,0.,1.5);
- new TH2F("h2209","P vs X EXM2 st. 2",30,3.0,183.0,100,0.,7.);
- new TH2F("h2210","P vs X EYM2 st. 2",30,3.0,183.0,100,0.,5.);
-
- new TH2F("h2211","P vs X EPH cut st. 2",30,3.0,183.0,100,0.,0.05);
- new TH2F("h2212","P vs X EAL cut st. 2",30,3.0,183.0,100,0.,0.2);
- //new TH2F("h2213","P vs X EXM cut st. 2",30,3.0,183.0,100,0.,1.5);
- new TH2F("h2213","P vs X EXM cut st. 2",30,3.0,183.0,100,0.,11.);
- new TH2F("h2214","P vs X EYM cut st. 2",30,3.0,183.0,100,0.,10.);
-
- new TH2F("h2215","P2 vs X EPH cut st. 2",30,3.0,183.0,100,0.,0.05);
- new TH2F("h2216","P2 vs X EAL cut st. 2",30,3.0,183.0,100,0.,0.2);
- //new TH2F("h2217","P2 vs X EXM cut st. 2",30,3.0,183.0,100,0.,1.5);
- new TH2F("h2217","P2 vs X EXM cut st. 2",30,3.0,183.0,100,0.,11.);
- new TH2F("h2218","P2 vs X EYM cut st. 2",30,3.0,183.0,100,0.,10.);
-
- // 1
- new TH2F("h2102","P2 vs X EPH2 st. 2",30,3.0,183.0,100,0.,0.0006);
- new TH2F("h2103","P2 vs X EAL2 st. 2",30,3.0,183.0,100,0.,0.005);
- //new TH2F("h2104","P2 vs X EXM2 st. 2",30,3.0,183.0,100,0.,1.5);
- new TH2F("h2104","P2 vs X EXM2 st. 2",30,3.0,183.0,100,0.,7.);
- new TH2F("h2105","P2 vs X EYM2 st. 2",30,3.0,183.0,100,0.,7.);
-
- new TH2F("h2107","P vs X EPH2 st. 2",30,3.0,183.0,100,0.,0.0006);
- new TH2F("h2108","P vs X EAL2 st. 2",30,3.0,183.0,100,0.,0.005);
- //new TH2F("h2109","P vs X EXM2 st. 2",30,3.0,183.0,100,0.,1.5);
- new TH2F("h2109","P vs X EXM2 st. 2",30,3.0,183.0,100,0.,7.);
- new TH2F("h2110","P vs X EYM2 st. 2",30,3.0,183.0,100,0.,7.);
-
- new TH2F("h2111","P vs X EPH cut st. 2",30,3.0,183.0,100,0.,0.1);
- new TH2F("h2112","P vs X EAL cut st. 2",30,3.0,183.0,100,0.,0.2);
- //new TH2F("h2113","P vs X EXM cut st. 2",30,3.0,183.0,100,0.,1.5);
- new TH2F("h2113","P vs X EXM cut st. 2",30,3.0,183.0,100,0.,11.);
- new TH2F("h2114","P vs X EYM cut st. 2",30,3.0,183.0,100,0.,11.);
-
- new TH2F("h2115","P2 vs X EPH cut st. 2",30,3.0,183.0,100,0.,0.1);
- new TH2F("h2116","P2 vs X EAL cut st. 2",30,3.0,183.0,100,0.,0.2);
- //new TH2F("h2117","P2 vs X EXM cut st. 2",30,3.0,183.0,100,0.,1.5);
- new TH2F("h2117","P2 vs X EXM cut st. 2",30,3.0,183.0,100,0.,11.);
- new TH2F("h2118","P2 vs X EYM cut st. 2",30,3.0,183.0,100,0.,11.);
-
- // 2,3,4,5
- new TH1F("h2701","P2 fit 2",30,3.0,183.0);
- new TH2F("h2702","P2 vs X EPH2 st. 1 fit 2",30,3.0,183.0,100,0.,0.0006);
- new TH2F("h2703","P2 vs X EAL2 st. 1 fit 2",30,3.0,183.0,100,0.,0.005);
- // new TH2F("h2704","P2 vs X EXM2 st. 1 fit 2",30,3.0,183.0,100,0.,1.5);
- new TH2F("h2704","P2 vs X EXM2 st. 1 fit 2",30,3.0,183.0,100,0.,2.);
- new TH2F("h2705","P2 vs X EYM2 st. 1 fit 2",30,3.0,183.0,100,0.,3.);
-
- new TH2F("h2707","P vs X EPH2 st. 1 fit 2",30,3.0,183.0,100,0.,0.0006);
- new TH2F("h2708","P vs X EAL2 st. 1 fit 2",30,3.0,183.0,100,0.,0.005);
- //new TH2F("h2709","P vs X EXM2 st. 1 fit 2",30,3.0,183.0,100,0.,1.5);
- new TH2F("h2709","P vs X EXM2 st. 1 fit 2",30,3.0,183.0,100,0.,2.);
- new TH2F("h2710","P vs X EYM2 st. 1 fit 2",30,3.0,183.0,100,0.,3.);
-
- new TH2F("h2711","P vs X EPH cut st. 1 fit 2",30,3.0,183.0,100,0.,0.07);
- new TH2F("h2712","P vs X EAL cut st. 1 fit 2",30,3.0,183.0,100,0.,0.2);
- //new TH2F("h2713","P vs X EXM cut st. 1 fit 2",30,3.0,183.0,100,0.,1.5);
- new TH2F("h2713","P vs X EXM cut st. 1 fit 2",30,3.0,183.0,100,0.,6.);
- new TH2F("h2714","P vs X EYM cut st. 1 fit 2",30,3.0,183.0,100,0.,7.);
-
- new TH2F("h2715","P2 vs X EPH cut st. 1 fit 2",30,3.0,183.0,100,0.,0.07);
- new TH2F("h2716","P2 vs X EAL cut st. 1 fit 2",30,3.0,183.0,100,0.,0.2);
- //new TH2F("h2717","P2 vs X EXM cut st. 1 fit 2",30,3.0,183.0,100,0.,1.5);
- new TH2F("h2717","P2 vs X EXM cut st. 1 fit 2",30,3.0,183.0,100,0.,6.);
- new TH2F("h2718","P2 vs X EYM cut st. 1 fit 2",30,3.0,183.0,100,0.,7.);
-
- // 1,3,4,5
- new TH1F("h2801","P2 fit 1",30,3.0,183.0);
- new TH2F("h2802","P2 vs X EPH2 st. 2 fit 1",30,3.0,183.0,100,0.,0.0006);
- new TH2F("h2803","P2 vs X EAL2 st. 2 fit 1",30,3.0,183.0,100,0.,0.005);
- //new TH2F("h2804","P2 vs X EXM2 st. 2 fit 1",30,3.0,183.0,100,0.,1.5);
- new TH2F("h2804","P2 vs X EXM2 st. 2 fit 1",30,3.0,183.0,100,0.,2.);
- new TH2F("h2805","P2 vs X EYM2 st. 2 fit 1",30,3.0,183.0,100,0.,3.);
-
- new TH2F("h2807","P vs X EPH2 st. 2 fit 1",30,3.0,183.0,100,0.,0.0006);
- new TH2F("h2808","P vs X EAL2 st. 2 fit 1",30,3.0,183.0,100,0.,0.005);
- //new TH2F("h2809","P vs X EXM2 st. 2 fit 1",30,3.0,183.0,100,0.,1.5);
- new TH2F("h2809","P vs X EXM2 st. 2 fit 1",30,3.0,183.0,100,0.,2.);
- new TH2F("h2810","P vs X EYM2 st. 2 fit 1",30,3.0,183.0,100,0.,3.);
-
- new TH2F("h2811","P vs X EPH cut st. 2 fit 1",30,3.0,183.0,100,0.,0.05);
- new TH2F("h2812","P vs X EAL cut st. 2 fit 1",30,3.0,183.0,100,0.,0.2);
- //new TH2F("h2813","P vs X EXM cut st. 2 fit 1",30,3.0,183.0,100,0.,1.5);
- new TH2F("h2813","P vs X EXM cut st. 2 fit 1",30,3.0,183.0,100,0.,5.);
- new TH2F("h2814","P vs X EYM cut st. 2 fit 1",30,3.0,183.0,100,0.,7.);
-
- new TH2F("h2815","P2 vs X EPH cut st. 2 fit 1",30,3.0,183.0,100,0.,0.05);
- new TH2F("h2816","P2 vs X EAL cut st. 2 fit 1",30,3.0,183.0,100,0.,0.2);
- //new TH2F("h2817","P2 vs X EXM cut st. 2 fit 1",30,3.0,183.0,100,0.,1.5);
- new TH2F("h2817","P2 vs X EXM cut st. 2 fit 1",30,3.0,183.0,100,0.,5.);
- new TH2F("h2818","P2 vs X EYM cut st. 2 fit 1",30,3.0,183.0,100,0.,7.);
-
-
- new TH2F("h1111","dx vs x station 1",30,-250.,250.,30,-0.5,0.5);
- new TH2F("h1112","dx vs x station 2",30,-250.,250.,30,-0.5,0.5);
- new TH2F("h1113","dx vs x station 3",30,-250.,250.,30,-0.5,0.5);
- new TH2F("h1114","dx vs x station 4",30,-250.,250.,30,-0.5,0.5);
- new TH2F("h1115","dx vs x station 5",30,-250.,250.,30,-0.5,0.5);
- new TH2F("h1121","dy vs y station 1",30,-250.,250.,30,-0.04,0.04);
- new TH2F("h1122","dy vs y station 2",30,-250.,250.,30,-0.04,0.04);
- new TH2F("h1123","dy vs y station 3",30,-250.,250.,30,-0.04,0.04);
- new TH2F("h1124","dy vs y station 4",30,-250.,250.,30,-0.04,0.04);
- new TH2F("h1125","dy vs y station 5",30,-250.,250.,30,-0.04,0.04);
-
- // fin de test
-
- new TH1F("h500","Acceptance en H st. 4",500,0.,500.);
- new TH1F("h600","Acceptance en H st. 5",500,0.,500.);
- new TH1F("h700","X vertex track found",200,-10.,10.);
- new TH1F("h701","Y vertex track found",200,-10.,10.);
- new TH1F("h800","Rap. muon gen.",100,0.,5.);
- new TH1F("h801","Rap. muon gen. recons.",100,0.,5.);
- new TH1F("h802","Rap. muon gen. ghost ",100,0.,5.);
- new TH1F("h900","Pt muon gen.",100,0.,20.);
- new TH1F("h901","Pt muon gen. recons.",100,0.,20.);
- new TH1F("h902","Pt muon gen. ghost",100,0.,20.);
- new TH1F("h910","phi muon gen.",100,-10.,10.);
- new TH1F("h911","phi muon gen. recons.",100,-10.,10.);
- new TH1F("h912","phi muon gen. ghost",100,-10.,10.);
- new TH2F("h1001","Y VS X hit st. 1",300,-300.,300.,300,-300.,300.);
- new TH2F("h1002","Y VS X hit st. 2",300,-300.,300.,300,-300.,300.);
- new TH2F("h1003","Y VS X hit st. 3",300,-300.,300.,300,-300.,300.);
- new TH2F("h1004","Y VS X hit st. 4",300,-300.,300.,300,-300.,300.);
- new TH2F("h1005","Y VS X hit st. 5",300,-300.,300.,300,-300.,300.);
- // Histos variance dans 4
- new TH2F("h11","VAR X st. 4",30,3.0,183.0,100,0.,2.);
- new TH2F("h12","VAR Y st. 4",30,3.0,183.0,100,0.,600.);
- new TH2F("h13","VAR PHI st. 4",30,3.0,183.0,100,0.,0.0001);
- new TH2F("h14","VAR ALM st. 4",30,3.0,183.0,100,0.,0.05);
- new TH1F("h15","P",30,3.0,183.0);
- new TH1F("h411","VAR X st. 4",100,-1.42,1.42);
- new TH1F("h412","VAR Y st. 4",100,-25.,25.);
- new TH1F("h413","VAR PHI st. 4",100,-0.01,0.01);
- new TH1F("h414","VAR ALM st. 4",100,-0.23,0.23);
- // histo2
- new TH2F("h211","histo2-VAR X st. 4",30,3.0,183.0,100,0.,2.);
- new TH2F("h212","histo2-VAR Y st. 4",30,3.0,183.0,100,0.,600.);
- new TH1F("h213","histo2-VAR X st. 4",100,-1.42,1.42);
- new TH1F("h214","histo2-VAR Y st. 4",100,-25.,25.);
- new TH1F("h215","histo2-P",30,3.0,183.0);
-
- // Histos variance dans 2
- new TH2F("h21","VAR X st. 2",30,3.0,183.0,100,0.,3.);
- new TH2F("h22","VAR Y st. 2",30,3.0,183.0,100,0.,7.);
- new TH2F("h23","VAR PHI st. 2",30,3.0,183.0,100,0.,0.006);
- new TH2F("h24","VAR ALM st. 2",30,3.0,183.0,100,0.,0.005);
- new TH1F("h25","P",30,3.0,183.0);
- new TH1F("h421","VAR X st. 2",100,-1.72,1.72);
- new TH1F("h422","VAR Y st. 2",100,-2.7,2.7);
- new TH1F("h423","VAR PHI st. 2",100,-0.08,0.08);
- new TH1F("h424","VAR ALM st. 2",100,-0.072,0.072);
- // histo2
- new TH2F("h221","histo2-VAR X st. 2",30,3.0,183.0,100,0.,3.);
- new TH2F("h222","histo2-VAR Y st. 2",30,3.0,183.0,100,0.,7.);
- new TH1F("h223","histo2-VAR X st. 2",100,-1.72,1.72);
- new TH1F("h224","histo2-VAR Y st. 2",100,-2.7,2.7);
- new TH1F("h225","histo2-P",30,3.0,183.0);
-
- // Histos variance dans 1
- new TH2F("h31","VAR X st. 1",30,3.0,183.0,100,0.,2.);
- new TH2F("h32","VAR Y st. 1",30,3.0,183.0,100,0.,0.5);
- new TH2F("h33","VAR PHI st. 1",30,3.0,183.0,100,0.,0.006);
- new TH2F("h34","VAR ALM st. 1",30,3.0,183.0,100,0.,0.005);
- new TH1F("h35","P",30,3.0,183.0);
- new TH1F("h431","VAR X st. 1",100,-1.42,1.42);
- new TH1F("h432","VAR Y st. 1",100,-0.72,0.72);
- new TH1F("h433","VAR PHI st. 1",100,-0.08,0.08);
- new TH1F("h434","VAR ALM st. 1",100,-0.072,0.072);
- // Histos variance dans 1
- new TH2F("h41","VAR X st. 1 fit 5,4,3,2,V",30,3.0,183.0,100,0.,4.);
- new TH2F("h42","VAR Y st. 1 fit 5,4,3,2,V",30,3.0,183.0,100,0.,20.);
- new TH2F("h43","VAR PHI st. 1 fit 5,4,3,2,V",30,3.0,183.0,100,0.,0.005);
- new TH2F("h44","VAR ALM st. 1 fit 5,4,3,2,V",30,3.0,183.0,100,0.,0.005);
- new TH1F("h45","P",30,3.0,183.0);
- new TH1F("h441","VAR X st. 1 fit 5,4,3,2,V",100,-2.,2.);
- new TH1F("h442","VAR Y st. 1 fit 5,4,3,2,V",100,-4.5,4.5);
- new TH1F("h443","VAR PHI st. 1 fit 5,4,3,2,V",100,-0.072,0.072);
- new TH1F("h444","VAR ALM st. 1 fit 5,4,3,2,V",100,-0.072,0.072);
- // histo2
- new TH2F("h241","histo2-VAR X st. 1 fit 5,4,3,2,V",30,3.0,183.0,100,0.,4.);
- new TH2F("h242","histo2-VAR Y st. 1 fit 5,4,3,2,V",30,3.0,183.0,100,0.,20.);
- new TH1F("h243","histo2-VAR X st. 1 fit 5,4,3,2,V",100,-2.,2.);
- new TH1F("h244","histo2-VAR Y st. 1 fit 5,4,3,2,V",100,-4.5,4.5);
- new TH1F("h245","histo2-P",30,3.0,183.0);
-
- // Histos variance dans 2
- new TH2F("h51","VAR X st. 2 fit 5,4,3,1,V",30,3.0,183.0,100,0.,0.5);
- new TH2F("h52","VAR Y st. 2 fit 5,4,3,1,V",30,3.0,183.0,100,0.,2.);
- new TH2F("h53","VAR PHI st. 2 fit 5,4,3,1,V",30,3.0,183.0,100,0.,0.005);
- new TH2F("h54","VAR ALM st. 2 fit 5,4,3,1,V",30,3.0,183.0,100,0.,0.01);
- new TH1F("h55","P",30,3.0,183.0);
- new TH1F("h451","VAR X st. 2 fit 5,4,3,1,V",100,-0.72,0.72);
- new TH1F("h452","VAR Y st. 2 fit 5,4,3,1,V",100,-1.42,1.42);
- new TH1F("h453","VAR PHI st. 2 fit 5,4,3,1,V",100,-0.072,0.072);
- new TH1F("h454","VAR ALM st. 2 fit 5,4,3,1,V",100,-0.1,0.1);
- new TH1F("h999","PTOT",30,3.0,183.0);
- // histo2
- new TH2F("h251","histo2-VAR X st. 2 fit 5,4,3,1,V",30,3.0,183.0,100,0.,0.5);
- new TH2F("h252","histo2-VAR Y st. 2 fit 5,4,3,1,V",30,3.0,183.0,100,0.,2.);
- new TH1F("h253","histo2-VAR X st. 2 fit 5,4,3,1,V",100,-0.72,0.72);
- new TH1F("h254","histo2-VAR Y st. 2 fit 5,4,3,1,V",100,-1.42,1.42);
- new TH1F("h255","histo2-P",30,3.0,183.0);
- // Histos variance dans 3
- new TH2F("h61","VAR X st. 3 fit 4,5,V",30,3.0,183.0,100,0.,5.);
- new TH2F("h62","VAR Y st. 3 fit 4,5,V",30,3.0,183.0,100,0.,2.);
- new TH2F("h63","VAR PHI st. 3 fit 4,5,V",30,3.0,183.0,100,0.,0.0006);
- new TH2F("h64","VAR ALM st. 3 fit 4,5,V",30,3.0,183.0,100,0.,0.0006);
- new TH1F("h65","P",30,3.0,183.0);
- new TH1F("h461","VAR X st. 3 fit 4,5,V",100,-2.25,2.25);
- new TH1F("h462","VAR Y st. 3 fit 4,5,V",100,-1.42,1.42);
- new TH1F("h463","VAR PHI st. 3 fit 4,5,V",100,-0.024,0.024);
- new TH1F("h464","VAR ALM st. 3 fit 4,5,V",100,-0.024,0.024);
- // histo2
- new TH2F("h261","histo2-VAR X st. 3 fit 4,5,V",30,3.0,183.0,100,0.,5.);
- new TH2F("h262","histo2-VAR Y st. 3 fit 4,5,V",30,3.0,183.0,100,0.,2.);
- new TH1F("h263","histo2-VAR X st. 3 fit 4,5,V",100,-2.25,2.25);
- new TH1F("h264","histo2-VAR Y st. 3 fit 4,5,V",100,-1.42,1.42);
- new TH1F("h265","Phisto2-",30,3.0,183.0);
- // Histos dx,dy distribution between chambers inside stations
- new TH1F("h71","DX in st. ID-70",100,-5.,5.);
- new TH1F("h81","DY in st. ID-80",100,-5.,5.);
- new TH1F("h72","DX in st. ID-70",100,-5.,5.);
- new TH1F("h82","DY in st. ID-80",100,-5.,5.);
- new TH1F("h73","DX in st. ID-70",100,-5.,5.);
- new TH1F("h83","DY in st. ID-80",100,-5.,5.);
- new TH1F("h74","DX in st. ID-70",100,-5.,5.);
- new TH1F("h84","DY in st. ID-80",100,-5.,5.);
- new TH1F("h75","DX in st. ID-70",100,-5.,5.);
- new TH1F("h85","DY in st. ID-80",100,-5.,5.);
+ // Sort HitsForRec's in increasing order with respect to chamber number.
+ // Uses the function "Compare".
+ // Update the information for HitsForRec per chamber too.
+ Int_t ch, nhits, prevch;
+ fHitsForRecPtr->Sort();
+ for (ch = 0; ch < AliMUONConstants::NTrackingCh(); ch++) {
+ fNHitsForRecPerChamber[ch] = 0;
+ fIndexOfFirstHitForRecPerChamber[ch] = 0;
+ }
+ prevch = 0; // previous chamber
+ nhits = 0; // number of hits in current chamber
+ // Loop over HitsForRec
+ for (Int_t hit = 0; hit < fNHitsForRec; hit++) {
+ // chamber number (0...)
+ ch = ((AliMUONHitForRec*) ((*fHitsForRecPtr)[hit]))->GetChamberNumber();
+ // increment number of hits in current chamber
+ (fNHitsForRecPerChamber[ch])++;
+ // update index of first HitForRec in current chamber
+ // if chamber number different from previous one
+ if (ch != prevch) {
+ fIndexOfFirstHitForRecPerChamber[ch] = hit;
+ prevch = ch;
+ }
+ }
+ return;
}
-//_____________________________________________________________________________
-void chfnt(Int_t &ievr, Int_t &ntrackr, Int_t *istatr, Int_t *isignr, Float_t *pxr, Float_t *pyr, Float_t *pzr, Float_t *zvr, Float_t *chi2r, Float_t *pxv, Float_t *pyv, Float_t *pzv)
+ //__________________________________________________________________________
+void AliMUONTrackReconstructor::AddHitsForRecFromRawClusters(TTree* TR)
{
- //
- // fill the ntuple
- NtupleSt.ievr = ievr;
- NtupleSt.ntrackr = ntrackr;
- for (Int_t i=0; i<500; i++) {
- NtupleSt.istatr[i] = istatr[i];
- NtupleSt.isignr[i] = isignr[i];
- NtupleSt.pxr[i] = pxr[i];
- NtupleSt.pyr[i] = pyr[i];
- NtupleSt.pzr[i] = pzr[i];
- NtupleSt.zvr[i] = zvr[i];
- NtupleSt.chi2r[i] = chi2r[i];
- NtupleSt.pxv[i] = pxv[i];
- NtupleSt.pyv[i] = pyv[i];
- NtupleSt.pzv[i] = pzv[i];
+ // To add to the list of hits for reconstruction all the raw clusters
+ // No condition added, like in Fortran TRACKF_STAT,
+ // on the radius between RMin and RMax.
+ AliMUONHitForRec *hitForRec;
+ AliMUONRawCluster *clus;
+ Int_t iclus, nclus, nTRentries;
+ TClonesArray *rawclusters;
+ AliDebug(1,"Enter AddHitsForRecFromRawClusters");
+
+ if (fTrackMethod != 3) { //AZ
+ fMUONData->SetTreeAddress("RC"); //AZ
+ nTRentries = Int_t(TR->GetEntries());
+ if (nTRentries != 1) {
+ AliError(Form("nTRentries = %d not equal to 1 ",nTRentries));
+ exit(0);
}
- gAliNtupleGlobal->Fill();
+ fLoader->TreeR()->GetEvent(0); // only one entry
+ }
+
+ // Loop over tracking chambers
+ for (Int_t ch = 0; ch < AliMUONConstants::NTrackingCh(); ch++) {
+ // number of HitsForRec to 0 for the chamber
+ fNHitsForRecPerChamber[ch] = 0;
+ // index of first HitForRec for the chamber
+ if (ch == 0) fIndexOfFirstHitForRecPerChamber[ch] = 0;
+ else fIndexOfFirstHitForRecPerChamber[ch] = fNHitsForRec;
+ rawclusters =fMUONData->RawClusters(ch);
+// pMUON->ResetRawClusters();
+// TR->GetEvent((Int_t) (TR->GetEntries()) - 1); // to be checked ????
+ nclus = (Int_t) (rawclusters->GetEntries());
+ // Loop over (cathode correlated) raw clusters
+ for (iclus = 0; iclus < nclus; iclus++) {
+ clus = (AliMUONRawCluster*) rawclusters->UncheckedAt(iclus);
+ // new AliMUONHitForRec from raw cluster
+ // and increment number of AliMUONHitForRec's (total and in chamber)
+ hitForRec = new ((*fHitsForRecPtr)[fNHitsForRec]) AliMUONHitForRec(clus);
+ fNHitsForRec++;
+ (fNHitsForRecPerChamber[ch])++;
+ // more information into HitForRec
+ // resolution: info should be already in raw cluster and taken from it ????
+ //hitForRec->SetBendingReso2(fBendingResolution * fBendingResolution);
+ //hitForRec->SetNonBendingReso2(fNonBendingResolution * fNonBendingResolution);
+ hitForRec->SetBendingReso2(clus->GetErrY() * clus->GetErrY());
+ hitForRec->SetNonBendingReso2(clus->GetErrX() * clus->GetErrX());
+ // original raw cluster
+ hitForRec->SetChamberNumber(ch);
+ hitForRec->SetHitNumber(iclus);
+ // Z coordinate of the raw cluster (cm)
+ hitForRec->SetZ(clus->GetZ(0));
+ if (AliLog::GetGlobalDebugLevel() > 1) {
+ cout << "chamber (0...): " << ch <<
+ " raw cluster (0...): " << iclus << endl;
+ clus->Dump();
+ cout << "AliMUONHitForRec number (1...): " << fNHitsForRec << endl;
+ hitForRec->Dump();}
+ } // end of cluster loop
+ } // end of chamber loop
+ SortHitsForRecWithIncreasingChamber();
+ return;
}
-//________________
-void hist_closed()
+ //__________________________________________________________________________
+void AliMUONTrackReconstructor::MakeSegments(void)
{
- //
- // write histos and ntuple to "reconst.root" file
- gAliFileGlobal->Write();
+ // To make the list of segments in all stations,
+ // from the list of hits to be reconstructed
+ AliDebug(1,"Enter MakeSegments");
+ //AZ ResetSegments();
+ // Loop over stations
+ Int_t nb = (fTrackMethod != 1) ? 3 : 0; //AZ
+ for (Int_t st = nb; st < AliMUONConstants::NTrackingCh()/2; st++)
+ MakeSegmentsPerStation(st);
+ if (AliLog::GetGlobalDebugLevel() > 1) {
+ cout << "end of MakeSegments" << endl;
+ for (Int_t st = 0; st < AliMUONConstants::NTrackingCh()/2; st++) {
+ cout << "station(0...): " << st
+ << " Segments: " << fNSegments[st]
+ << endl;
+ for (Int_t seg = 0;
+ seg < fNSegments[st];
+ seg++) {
+ cout << "Segment index(0...): " << seg << endl;
+ ((*fSegmentsPtr[st])[seg])->Dump();
+ }
+ }
+ }
+ return;
}
-//________________________________________________________________________
-void trackf_read_fit(Int_t &ievr, Int_t &nev, Int_t &nhittot1, Int_t *izch, Double_t *xgeant, Double_t *ygeant)
+ //__________________________________________________________________________
+void AliMUONTrackReconstructor::MakeSegmentsPerStation(Int_t Station)
{
+ // To make the list of segments in station number "Station" (0...)
+ // from the list of hits to be reconstructed.
+ // Updates "fNSegments"[Station].
+ // Segments in stations 4 and 5 are sorted
+ // according to increasing absolute value of "impact parameter"
+ AliMUONHitForRec *hit1Ptr, *hit2Ptr;
+ AliMUONSegment *segment;
+ Bool_t last2st;
+ Double_t bendingSlope, distBend, distNonBend, extBendCoor, extNonBendCoor,
+ impactParam = 0., maxImpactParam = 0., minImpactParam = 0.; // =0 to avoid compilation warnings.
+ AliDebug(1,Form("Enter MakeSegmentsPerStation (0...) %d",Station));
+ // first and second chambers (0...) in the station
+ Int_t ch1 = 2 * Station;
+ Int_t ch2 = ch1 + 1;
+ // variable true for stations downstream of the dipole:
+ // Station(0..4) equal to 3 or 4
+ if ((Station == 3) || (Station == 4)) {
+ last2st = kTRUE;
+ // maximum impact parameter (cm) according to fMinBendingMomentum...
+ maxImpactParam =
+ TMath::Abs(GetImpactParamFromBendingMomentum(fMinBendingMomentum));
+ // minimum impact parameter (cm) according to fMaxBendingMomentum...
+ minImpactParam =
+ TMath::Abs(GetImpactParamFromBendingMomentum(fMaxBendingMomentum));
+ }
+ else last2st = kFALSE;
+ // extrapolation factor from Z of first chamber to Z of second chamber
+ // dZ to be changed to take into account fine structure of chambers ????
+ Double_t extrapFact;
+ // index for current segment
+ Int_t segmentIndex = 0;
+ // Loop over HitsForRec in the first chamber of the station
+ for (Int_t hit1 = fIndexOfFirstHitForRecPerChamber[ch1];
+ hit1 < fIndexOfFirstHitForRecPerChamber[ch1] + fNHitsForRecPerChamber[ch1];
+ hit1++) {
+ // pointer to the HitForRec
+ hit1Ptr = (AliMUONHitForRec*) ((*fHitsForRecPtr)[hit1]);
+ // extrapolation,
+ // on the straight line joining the HitForRec to the vertex (0,0,0),
+ // to the Z of the second chamber of the station
+ // Loop over HitsForRec in the second chamber of the station
+ for (Int_t hit2 = fIndexOfFirstHitForRecPerChamber[ch2];
+ hit2 < fIndexOfFirstHitForRecPerChamber[ch2] + fNHitsForRecPerChamber[ch2];
+ hit2++) {
+ // pointer to the HitForRec
+ hit2Ptr = (AliMUONHitForRec*) ((*fHitsForRecPtr)[hit2]);
+ // absolute values of distances, in bending and non bending planes,
+ // between the HitForRec in the second chamber
+ // and the previous extrapolation
+ extrapFact = hit2Ptr->GetZ()/ hit1Ptr->GetZ();
+ extBendCoor = extrapFact * hit1Ptr->GetBendingCoor();
+ extNonBendCoor = extrapFact * hit1Ptr->GetNonBendingCoor();
+ distBend = TMath::Abs(hit2Ptr->GetBendingCoor() - extBendCoor);
+ distNonBend = TMath::Abs(hit2Ptr->GetNonBendingCoor() - extNonBendCoor);
+ if (last2st) {
+ // bending slope
+ if ( hit1Ptr->GetZ() - hit2Ptr->GetZ() != 0.0 ) {
+ bendingSlope = (hit1Ptr->GetBendingCoor() - hit2Ptr->GetBendingCoor()) /
+ (hit1Ptr->GetZ() - hit2Ptr->GetZ());
+ // absolute value of impact parameter
+ impactParam =
+ TMath::Abs(hit1Ptr->GetBendingCoor() - hit1Ptr->GetZ() * bendingSlope);
+ }
+ else {
+ AliWarning("hit1Ptr->GetZ() = hit2Ptr->GetZ(): impactParam set to maxImpactParam");
+ impactParam = maxImpactParam;
+ }
+ }
+ // check for distances not too large,
+ // and impact parameter not too big if stations downstream of the dipole.
+ // Conditions "distBend" and "impactParam" correlated for these stations ????
+ if ((distBend < fSegmentMaxDistBending[Station]) &&
+ (distNonBend < fSegmentMaxDistNonBending[Station]) &&
+ (!last2st || (impactParam < maxImpactParam)) &&
+ (!last2st || (impactParam > minImpactParam))) {
+ // make new segment
+ segment = new ((*fSegmentsPtr[Station])[segmentIndex])
+ AliMUONSegment(hit1Ptr, hit2Ptr);
+ // update "link" to this segment from the hit in the first chamber
+ if (hit1Ptr->GetNSegments() == 0)
+ hit1Ptr->SetIndexOfFirstSegment(segmentIndex);
+ hit1Ptr->SetNSegments(hit1Ptr->GetNSegments() + 1);
+ if (AliLog::GetGlobalDebugLevel() > 1) {
+ cout << "segmentIndex(0...): " << segmentIndex
+ << " distBend: " << distBend
+ << " distNonBend: " << distNonBend
+ << endl;
+ segment->Dump();
+ cout << "HitForRec in first chamber" << endl;
+ hit1Ptr->Dump();
+ cout << "HitForRec in second chamber" << endl;
+ hit2Ptr->Dump();
+ };
+ // increment index for current segment
+ segmentIndex++;
+ }
+ } //for (Int_t hit2
+ } // for (Int_t hit1...
+ fNSegments[Station] = segmentIndex;
+ // Sorting according to "impact parameter" if station(1..5) 4 or 5,
+ // i.e. Station(0..4) 3 or 4, using the function "Compare".
+ // After this sorting, it is impossible to use
+ // the "fNSegments" and "fIndexOfFirstSegment"
+ // of the HitForRec in the first chamber to explore all segments formed with it.
+ // Is this sorting really needed ????
+ if ((Station == 3) || (Station == 4)) (fSegmentsPtr[Station])->Sort();
+ AliDebug(1,Form("Station: %d NSegments: %d ", Station, fNSegments[Station]));
+ return;
+}
- // introduce aliroot variables in fortran common
- // tracking study from geant hits
- //
+ //__________________________________________________________________________
+void AliMUONTrackReconstructor::MakeTracks(void)
+{
+ // To make the tracks,
+ // from the list of segments and points in all stations
+ AliDebug(1,"Enter MakeTracks");
+ // The order may be important for the following Reset's
+ //AZ ResetTracks();
+ //AZ ResetTrackHits();
+ if (fTrackMethod != 1) { //AZ - Kalman filter
+ MakeTrackCandidatesK();
+ if (fRecTracksPtr->GetEntriesFast() == 0) return;
+ // Follow tracks in stations(1..) 3, 2 and 1
+ FollowTracksK();
+ // Remove double tracks
+ RemoveDoubleTracksK();
+ // Propagate tracks to the vertex thru absorber
+ GoToVertex();
+ // Fill AliMUONTrack data members
+ FillMUONTrack();
+ } else {
+ // Look for candidates from at least 3 aligned points in stations(1..) 4 and 5
+ MakeTrackCandidates();
+ // Follow tracks in stations(1..) 3, 2 and 1
+ FollowTracks();
+ // Remove double tracks
+ RemoveDoubleTracks();
+ UpdateTrackParamAtHit();
+ UpdateHitForRecAtHit();
+ }
+ return;
+}
- AliMUON *pMUON = (AliMUON*) gAlice->GetModule("MUON");
- TTree *treeH = gAlice->TreeH();
- Int_t ntracks = (Int_t)treeH->GetEntries();
- cout<<"ntrack="<<ntracks<<endl;
+ //__________________________________________________________________________
+void AliMUONTrackReconstructor::ValidateTracksWithTrigger(void)
+{
+ // Try to match track from tracking system with trigger track
+ AliMUONTrack *track;
+ TClonesArray *recTriggerTracks;
+
+ fMUONData->SetTreeAddress("RL");
+ fMUONData->GetRecTriggerTracks();
+ recTriggerTracks = fMUONData->RecTriggerTracks();
- nhittot1 = 0;
+ track = (AliMUONTrack*) fRecTracksPtr->First();
+ while (track) {
+ track->MatchTriggerTrack(recTriggerTracks);
+ track = (AliMUONTrack*) fRecTracksPtr->After(track);
+ }
-// Loop over tracks
- for (Int_t track=0; track<ntracks;track++) {
- gAlice->ResetHits();
- treeH->GetEvent(track);
-
- if (pMUON) {
-
-// Loop over hits
- for(AliMUONHit* mHit=(AliMUONHit*)pMUON->FirstHit(-1);
- mHit;
- mHit=(AliMUONHit*)pMUON->NextHit())
- {
- if (mHit->fChamber > 10) continue;
- TClonesArray *fPartArray = gAlice->Particles();
- Int_t ftrack = mHit->Track();
- Int_t id = ((TParticle*) fPartArray->UncheckedAt(ftrack))->GetPdgCode();
-
- if (id==kMuonPlus||id==kMuonMinus) {
- xgeant[nhittot1] = mHit->Y();
- ygeant[nhittot1] = mHit->X();
- izch[nhittot1] = mHit->fChamber;
-// printf("id %d ch %d x %f y %f\n",id,izch[nhittot1],xgeant[nhittot1],ygeant[nhittot1]);
- nhittot1++;
- }
- } // hit loop
- } // if pMUON
- } // track loop
-
- ievr=nev;
- gAliFileGlobal->cd();
}
-//______________________________________________________________________________
-void trackf_read_geant(Int_t *itypg, Double_t *xtrg, Double_t *ytrg, Double_t *ptotg, Int_t *idg, Int_t *izch, Double_t *pvert1g, Double_t *pvert2g, Double_t *pvert3g, Double_t *zvertg, Int_t &nhittot1, Double_t *cx, Double_t *cy, Double_t *cz, Int_t &ievr,Int_t &nev,Double_t *xgeant, Double_t *ygeant, Double_t *clsize1, Double_t *clsize2)
+ //__________________________________________________________________________
+Bool_t AliMUONTrackReconstructor::MakeTriggerTracks(void)
{
- //
- // introduce aliroot variables in fortran common
- // tracking study from geant hits
- //
+ // To make the trigger tracks from Local Trigger
+ AliDebug(1, "Enter MakeTriggerTracks");
+
+ Int_t nTRentries;
+ Long_t gloTrigPat;
+ TClonesArray *localTrigger;
+ TClonesArray *globalTrigger;
+ AliMUONLocalTrigger *locTrg;
+ AliMUONGlobalTrigger *gloTrg;
+
+ TTree* treeR = fLoader->TreeR();
+
+ // Loading MUON subsystem
+ AliMUON * pMUON = (AliMUON *) gAlice->GetDetector("MUON");
- AliMUON *pMUON = (AliMUON*) gAlice->GetModule("MUON");
-
- // TTree *treeK = gAlice->TreeK();
- TTree *treeH = gAlice->TreeH();
- Int_t ntracks = (Int_t)treeH->GetEntries();
- cout<<"ntrack="<<ntracks<<endl;
+ nTRentries = Int_t(treeR->GetEntries());
+
+ treeR->GetEvent(0); // only one entry
+
+ if (!(fMUONData->IsTriggerBranchesInTree())) {
+ AliWarning(Form("Trigger information is not avalaible, nTRentries = %d not equal to 1",nTRentries));
+ return kFALSE;
+ }
+
+ fMUONData->SetTreeAddress("TC");
+ fMUONData->GetTrigger();
- Int_t maxidg = 0;
- Int_t nres=0;
+ // global trigger for trigger pattern
+ gloTrigPat = 0;
+ globalTrigger = fMUONData->GlobalTrigger();
+ gloTrg = (AliMUONGlobalTrigger*)globalTrigger->UncheckedAt(0);
+
+ if (gloTrg)
+ gloTrigPat = gloTrg->GetGlobalPattern();
-//
-// Loop over tracks
-//
- for (Int_t track=0; track<ntracks;track++) {
- gAlice->ResetHits();
- treeH->GetEvent(track);
+ // local trigger for tracking
+ localTrigger = fMUONData->LocalTrigger();
+ Int_t nlocals = (Int_t) (localTrigger->GetEntries());
+
+ Float_t z11 = AliMUONConstants::DefaultChamberZ(10);
+ Float_t z21 = AliMUONConstants::DefaultChamberZ(12);
+
+ Float_t y11 = 0.;
+ Int_t stripX21 = 0;
+ Float_t y21 = 0.;
+ Float_t x11 = 0.;
+
+ for (Int_t i=0; i<nlocals; i++) { // loop on Local Trigger
+ locTrg = (AliMUONLocalTrigger*)localTrigger->UncheckedAt(i);
+
+ AliDebug(1, "AliMUONTrackReconstructor::MakeTriggerTrack using NEW trigger \n");
+ AliMUONTriggerCircuitNew * circuit =
+ &(pMUON->TriggerCircuitNew(locTrg->LoCircuit()-1)); // -1 !!!
+ y11 = circuit->GetY11Pos(locTrg->LoStripX());
+ stripX21 = locTrg->LoStripX()+locTrg->LoDev()+1;
+ y21 = circuit->GetY21Pos(stripX21);
+ x11 = circuit->GetX11Pos(locTrg->LoStripY());
- if (pMUON) {
-//
-// Loop over hits
-//
- for(AliMUONHit* mHit=(AliMUONHit*)pMUON->FirstHit(-1);
- mHit;
- mHit=(AliMUONHit*)pMUON->NextHit())
- {
- if (maxidg<=20000) {
-
- if (mHit->fChamber > 10) continue;
- TClonesArray *fPartArray = gAlice->Particles();
- TParticle *particle;
- Int_t ftrack = mHit->Track();
- Int_t id = ((TParticle*) fPartArray->UncheckedAt(ftrack))->GetPdgCode();
-
-// if (id==kMuonPlus||id==kMuonMinus) {
-
- // inversion de x et y car le champ est inverse dans le programme tracking
- xtrg[maxidg] = 0;
- ytrg[maxidg] = 0;
- xgeant[maxidg] = mHit->Y(); // x-pos of hit
- ygeant[maxidg] = mHit->X(); // y-pos of hit
- clsize1[maxidg] = 0; // cluster size on 1-st cathode
- clsize2[maxidg] = 0; // cluster size on 2-nd cathode
- cx[maxidg] = mHit->fCyHit; // Px/P of hit
- cy[maxidg] = mHit->fCxHit; // Py/P of hit
- cz[maxidg] = mHit->fCzHit; // Pz/P of hit
- izch[maxidg] = mHit->fChamber;
- /*
- Int_t pdgtype = Int_t(mHit->fParticle); // particle number
- itypg[maxidg] = gMC->IdFromPDG(pdgtype);
-
- */
- itypg[maxidg] = 0;
- if (id==kMuonPlus) itypg[maxidg] = 5;
- if (id==kMuonMinus) itypg[maxidg] = 6;
-
- //printf("ich, itypg[maxidg] %d %d\n",izch[maxidg],itypg[maxidg]);
-
- ptotg[maxidg] = mHit->fPTot; // P of hit
-
- particle = (TParticle*) fPartArray->UncheckedAt(ftrack);
- Float_t thet = particle->Theta();
- thet = thet*180./3.1416;
-
- //cout<<"chambre "<<izch[maxidg]<<" ptot="<<ptotg[maxidg]<<" theta="<<thet<<" phi="<<mHit->fPhi<<" z="<<zz<<endl;
-
- Int_t iparent = particle->GetFirstMother();
- if (iparent >= 0) {
- Int_t ip;
- while(1) {
- ip=((TParticle*) fPartArray->UncheckedAt(iparent))->GetFirstMother();
- if (ip < 0) {
- break;
- } else {
- iparent = ip;
- }
- }
- }
- //printf("iparent - %d\n",iparent);
- Int_t id1 = ftrack; // numero de la particule generee au vertex
- Int_t idum = track+1;
- Int_t id2 = ((TParticle*) fPartArray->UncheckedAt(iparent))->GetPdgCode();
-
- if (id2==443) id2=114;
- else id2=116;
-
- if (id2==116) {
- nres++;
- }
- //printf("id2 %d\n",id2);
- idg[maxidg] = 30000*id1+10000*idum+id2;
-
- pvert1g[maxidg] = particle->Py(); // Px vertex
- pvert2g[maxidg] = particle->Px(); // Py vertex
- pvert3g[maxidg] = particle->Pz(); // Pz vertex
- zvertg[maxidg] = particle->Vz(); // z vertex
-
- // cout<<"x="<<xgeant[maxidg]<<endl;
- //cout<<"y="<<ygeant[maxidg]<<endl;
- //cout<<"typ="<<itypg[maxidg]<<endl;
-
- maxidg ++;
-
- }
- }
- } // hit loop
-// } // if pMUON
- } // track loop first file
-
- if (gAliTrH1 && gAliHits2 ) { // if background file
- ntracks =(Int_t)gAliTrH1->GetEntries();
- printf("Trackf_read - 2-nd file - ntracks %d\n",ntracks);
-
- // Loop over tracks
- for (Int_t track=0; track<ntracks; track++) {
+ AliDebug(1, Form(" MakeTriggerTrack %d %d %d %d %d %f %f %f \n",i,locTrg->LoCircuit(),
+ locTrg->LoStripX(),locTrg->LoStripX()+locTrg->LoDev()+1,locTrg->LoStripY(),y11, y21, x11));
+
+ Float_t thetax = TMath::ATan2( x11 , z11 );
+ Float_t thetay = TMath::ATan2( (y21-y11) , (z21-z11) );
- if (gAliHits2) gAliHits2->Clear();
- gAliTrH1->GetEvent(track);
-
- // Loop over hits
- AliMUONHit *mHit;
- for (int i=0;i<gAliHits2->GetEntriesFast();i++)
- {
- mHit=(AliMUONHit*) (*gAliHits2)[i];
- if (mHit->fChamber > 10) continue;
- if (maxidg<=20000) {
-
- // inversion de x et y car le champ est inverse dans le programme tracking !!!!
- xtrg[maxidg] = 0; // only for reconstructed point
- ytrg[maxidg] = 0; // only for reconstructed point
- xgeant[maxidg] = mHit->Y(); // x-pos of hit
- ygeant[maxidg] = mHit->X(); // y-pos of hit
- clsize1[maxidg] = 0; // cluster size on 1-st cathode
- clsize2[maxidg] = 0; // cluster size on 2-nd cathode
- cx[maxidg] = mHit->fCyHit; // Px/P of hit
- cy[maxidg] = mHit->fCxHit; // Py/P of hit
- cz[maxidg] = mHit->fCzHit; // Pz/P of hit
- izch[maxidg] = mHit->fChamber; // chamber number
- ptotg[maxidg] = mHit->fPTot; // P of hit
-
- Int_t ftrack = mHit->Track();
- Int_t id1 = ftrack; // track number
- Int_t idum = track+1;
-
- TClonesArray *fPartArray = gAliParticles2;
-// TParticle *Part=NULL;
- Int_t id = ((TParticle*) fPartArray->UncheckedAt(ftrack))->GetPdgCode();
- if (id==kMuonPlus||id==kMuonMinus) {
- if (id==kMuonPlus) itypg[maxidg] = 5;
- else itypg[maxidg] = 6;
- } else itypg[maxidg]=0;
-
- Int_t id2=0; // set parent to 0 for background !!
- idg[maxidg] = 30000*id1+10000*idum+id2;
-
-
- pvert1g[maxidg] = 0; // Px vertex
- pvert2g[maxidg] = 0; // Py vertex
- pvert3g[maxidg] = 0; // Pz vertex
- zvertg[maxidg] = 0; // z vertex
- maxidg ++;
-
- } // check limits (maxidg)
- } // hit loop
- } // track loop
- } // if gAliTrH1
-
- ievr = nev;
- nhittot1 = maxidg ;
- cout<<"nhittot1="<<nhittot1<<endl;
-
- static Int_t nbres=0;
- if (nres>=19) nbres++;
- printf("nres, nbres %d %d \n",nres,nbres);
-
- gAliFileGlobal->cd();
+ fTriggerTrack->SetX11(x11);
+ fTriggerTrack->SetY11(y11);
+ fTriggerTrack->SetThetax(thetax);
+ fTriggerTrack->SetThetay(thetay);
+ fTriggerTrack->SetGTPattern(gloTrigPat);
+
+ fMUONData->AddRecTriggerTrack(*fTriggerTrack);
+ } // end of loop on Local Trigger
+ return kTRUE;
+}
+ //__________________________________________________________________________
+Int_t AliMUONTrackReconstructor::MakeTrackCandidatesWithTwoSegments(AliMUONSegment *BegSegment)
+{
+ // To make track candidates with two segments in stations(1..) 4 and 5,
+ // the first segment being pointed to by "BegSegment".
+ // Returns the number of such track candidates.
+ Int_t endStation, iEndSegment, nbCan2Seg;
+ AliMUONSegment *endSegment;
+ AliMUONSegment *extrapSegment = NULL;
+ AliMUONTrack *recTrack;
+ Double_t mcsFactor;
+ AliDebug(1,"Enter MakeTrackCandidatesWithTwoSegments");
+ // Station for the end segment
+ endStation = 7 - (BegSegment->GetHitForRec1())->GetChamberNumber() / 2;
+ // multiple scattering factor corresponding to one chamber
+ mcsFactor = 0.0136 /
+ GetBendingMomentumFromImpactParam(BegSegment->GetBendingImpact());
+ mcsFactor = fChamberThicknessInX0 * mcsFactor * mcsFactor;
+ // linear extrapolation to end station
+ // number of candidates with 2 segments to 0
+ nbCan2Seg = 0;
+ // Loop over segments in the end station
+ for (iEndSegment = 0; iEndSegment < fNSegments[endStation]; iEndSegment++) {
+ // pointer to segment
+ endSegment = (AliMUONSegment*) ((*fSegmentsPtr[endStation])[iEndSegment]);
+ // test compatibility between current segment and "extrapSegment"
+ // 4 because 4 quantities in chi2
+ extrapSegment =
+ BegSegment->CreateSegmentFromLinearExtrapToStation(endSegment->GetZ(), mcsFactor);
+ if ((endSegment->
+ NormalizedChi2WithSegment(extrapSegment,
+ fMaxSigma2Distance)) <= 4.0) {
+ // both segments compatible:
+ // make track candidate from "begSegment" and "endSegment"
+ AliDebug(2,Form("TrackCandidate with Segment %d in Station(0..) %d", iEndSegment, endStation));
+ // flag for both segments in one track:
+ // to be done in track constructor ????
+ BegSegment->SetInTrack(kTRUE);
+ endSegment->SetInTrack(kTRUE);
+ recTrack = new ((*fRecTracksPtr)[fNRecTracks])
+ AliMUONTrack(BegSegment, endSegment, this);
+ fNRecTracks++;
+ if (AliLog::GetGlobalDebugLevel() > 1) recTrack->RecursiveDump();
+ // increment number of track candidates with 2 segments
+ nbCan2Seg++;
+ }
+ delete extrapSegment; // should not delete HitForRec's it points to !!!!
+ } // for (iEndSegment = 0;...
+ return nbCan2Seg;
}
-//________________________________________________________________________
-void trackf_read_spoint(Int_t *itypg, Double_t *xtrg, Double_t *ytrg, Double_t *ptotg, Int_t *idg, Int_t *izch, Double_t *pvert1g, Double_t *pvert2g, Double_t *pvert3g, Double_t *zvertg, Int_t &nhittot1, Double_t *cx, Double_t *cy, Double_t *cz, Int_t &ievr,Int_t &nev,Double_t *xgeant, Double_t *ygeant,Double_t *clsize1, Double_t *clsize2)
+ //__________________________________________________________________________
+Int_t AliMUONTrackReconstructor::MakeTrackCandidatesWithOneSegmentAndOnePoint(AliMUONSegment *BegSegment)
+{
+ // To make track candidates with one segment and one point
+ // in stations(1..) 4 and 5,
+ // the segment being pointed to by "BegSegment".
+ Int_t ch, ch1, ch2, endStation, iHit, iHitMax, iHitMin, nbCan1Seg1Hit;
+ AliMUONHitForRec *extrapHitForRec= NULL;
+ AliMUONHitForRec *hit;
+ AliMUONTrack *recTrack;
+ Double_t mcsFactor;
+ AliDebug(1,"Enter MakeTrackCandidatesWithOneSegmentAndOnePoint");
+ // station for the end point
+ endStation = 7 - (BegSegment->GetHitForRec1())->GetChamberNumber() / 2;
+ // multiple scattering factor corresponding to one chamber
+ mcsFactor = 0.0136 /
+ GetBendingMomentumFromImpactParam(BegSegment->GetBendingImpact());
+ mcsFactor = fChamberThicknessInX0 * mcsFactor * mcsFactor;
+ // first and second chambers(0..) in the end station
+ ch1 = 2 * endStation;
+ ch2 = ch1 + 1;
+ // number of candidates to 0
+ nbCan1Seg1Hit = 0;
+ // Loop over chambers of the end station
+ for (ch = ch2; ch >= ch1; ch--) {
+ // limits for the hit index in the loop
+ iHitMin = fIndexOfFirstHitForRecPerChamber[ch];
+ iHitMax = iHitMin + fNHitsForRecPerChamber[ch];
+ // Loop over HitForRec's in the chamber
+ for (iHit = iHitMin; iHit < iHitMax; iHit++) {
+ // pointer to HitForRec
+ hit = (AliMUONHitForRec*) ((*fHitsForRecPtr)[iHit]);
+ // test compatibility between current HitForRec and "extrapHitForRec"
+ // 2 because 2 quantities in chi2
+ // linear extrapolation to chamber
+ extrapHitForRec =
+ BegSegment->CreateHitForRecFromLinearExtrapToChamber( hit->GetZ(), mcsFactor);
+ if ((hit->
+ NormalizedChi2WithHitForRec(extrapHitForRec,
+ fMaxSigma2Distance)) <= 2.0) {
+ // both HitForRec's compatible:
+ // make track candidate from begSegment and current HitForRec
+ AliDebug(2, Form("TrackCandidate with HitForRec %d in Chamber(0..) %d", iHit, ch));
+ // flag for beginning segments in one track:
+ // to be done in track constructor ????
+ BegSegment->SetInTrack(kTRUE);
+ recTrack = new ((*fRecTracksPtr)[fNRecTracks])
+ AliMUONTrack(BegSegment, hit, this);
+ // the right place to eliminate "double counting" ???? how ????
+ fNRecTracks++;
+ if (AliLog::GetGlobalDebugLevel() > 1) recTrack->RecursiveDump();
+ // increment number of track candidates
+ nbCan1Seg1Hit++;
+ }
+ delete extrapHitForRec;
+ } // for (iHit = iHitMin;...
+ } // for (ch = ch2;...
+ return nbCan1Seg1Hit;
+}
+ //__________________________________________________________________________
+void AliMUONTrackReconstructor::MakeTrackCandidates(void)
{
- //
- // introduce aliroot variables in fortran common
- // tracking study from reconstructed points
- //
- AliMUON *pMUON = (AliMUON*) gAlice->GetModule("MUON");
-
- cout<<"numero de l'evenement "<<nev<<endl;
-
- TTree *treeR = gAlice->TreeR();
- Int_t nent=(Int_t)treeR->GetEntries();
- if (nev < 10)
- printf("Found %d entries in the tree (must be one per cathode per event! + 1empty)\n",
- nent);
-//
-
- Int_t mult1, mult2;
-
- if (pMUON) {
- Int_t mpoi=0;
- for (Int_t ich=0;ich<10;ich++) {
- printf("chambre %d\n",ich+1);
- TClonesArray *reconstPoints = pMUON->RawClustAddress(ich);
-
- pMUON->ResetRawClusters();
- treeR->GetEvent(nent-1);
- Int_t npoints = (Int_t) reconstPoints->GetEntries();
- if (!npoints) continue;
- printf("\n ch %d npoints = %d\n",ich+1,npoints);
- // Loop over reconstruted points
- for (Int_t ipoi=0; ipoi<npoints; ipoi++) {
- printf(" point %d\n",ipoi);
- AliMUONRawCluster* point =
- (AliMUONRawCluster*) reconstPoints->UncheckedAt(ipoi);
-
- mult1=point->fMultiplicity[0];
- mult2=point->fMultiplicity[1];
- xtrg[mpoi]=(Double_t) point->fY[0];
- ytrg[mpoi]=(Double_t) point->fX[0];
- izch[mpoi]=ich+1;
- Int_t itrack = point->fTracks[1];
- Int_t ihit = point->fTracks[0];
- xgeant[mpoi] = 0;
- ygeant[mpoi] = 0;
- clsize1[mpoi] = mult1;
- clsize2[mpoi] = mult2;
- Int_t id1, id2, idum;
- id1=id2=idum=-1;
- itypg[mpoi]=0;
- ihit = ihit-1;
- if (ihit >=0 && itrack >=0) {
- TClonesArray *fPartArray = gAlice->Particles();
- gAlice->ResetHits();
- gAlice->TreeH()->GetEvent(itrack);
- TClonesArray *pMUONhits = pMUON->Hits();
- AliMUONHit* mHit;
- mHit=(AliMUONHit*) (pMUONhits->UncheckedAt(ihit));
- Int_t id = (Int_t) mHit->fParticle;
- xgeant[mpoi] = mHit->Y();
- ygeant[mpoi] = mHit->X();
- if (id == kMuonPlus) itypg[mpoi]=5;
- if (id == kMuonMinus) itypg[mpoi]=6;
- TParticle *particle;
- particle = (TParticle*)
- (fPartArray->UncheckedAt(mHit->Track()));
- TParticle* particleM=(TParticle*)
- (fPartArray->UncheckedAt(particle->GetFirstMother()));
- Int_t iparent=particleM->GetPdgCode();
- printf("\n Particle Id:%d %d \n", id, iparent);
- if (iparent == 443) id2=114;
- if (iparent == 553) id2=116;
- }
- id1=itrack;
- idum=itrack+1;
- idg[mpoi] = 30000*id1+10000*idum+id2;
- mpoi++;
- } // loop over points
- } // loop over chamber
- ievr = nev;
- cout<<"evenement "<<ievr<<endl;
- nhittot1 = mpoi;
- cout<<"nhittot1="<<nhittot1<<endl;
+ // To make track candidates
+ // with at least 3 aligned points in stations(1..) 4 and 5
+ // (two Segment's or one Segment and one HitForRec)
+ Int_t begStation, iBegSegment, nbCan1Seg1Hit, nbCan2Seg;
+ AliMUONSegment *begSegment;
+ AliDebug(1,"Enter MakeTrackCandidates");
+ // Loop over stations(1..) 5 and 4 for the beginning segment
+ for (begStation = 4; begStation > 2; begStation--) {
+ // Loop over segments in the beginning station
+ for (iBegSegment = 0; iBegSegment < fNSegments[begStation]; iBegSegment++) {
+ // pointer to segment
+ begSegment = (AliMUONSegment*) ((*fSegmentsPtr[begStation])[iBegSegment]);
+ AliDebug(2,Form("Look for TrackCandidate's with Segment %d in Station(0..) %d", iBegSegment, begStation));
+ // Look for track candidates with two segments,
+ // "begSegment" and all compatible segments in other station.
+ // Only for beginning station(1..) 5
+ // because candidates with 2 segments have to looked for only once.
+ if (begStation == 4)
+ nbCan2Seg = MakeTrackCandidatesWithTwoSegments(begSegment);
+ // Look for track candidates with one segment and one point,
+ // "begSegment" and all compatible HitForRec's in other station.
+ // Only if "begSegment" does not belong already to a track candidate.
+ // Is that a too strong condition ????
+ if (!(begSegment->GetInTrack()))
+ nbCan1Seg1Hit = MakeTrackCandidatesWithOneSegmentAndOnePoint(begSegment);
+ } // for (iBegSegment = 0;...
+ } // for (begStation = 4;...
+ return;
+}
+
+ //__________________________________________________________________________
+void AliMUONTrackReconstructor::FollowTracks(void)
+{
+ // Follow tracks in stations(1..) 3, 2 and 1
+ // too long: should be made more modular !!!!
+ AliMUONHitForRec *bestHit, *extrapHit, *hit;
+ AliMUONSegment *bestSegment, *extrapSegment, *segment;
+ AliMUONTrack *track, *nextTrack;
+ AliMUONTrackParam *trackParam1, trackParam[2], trackParamVertex;
+ // -1 to avoid compilation warnings
+ Int_t ch = -1, chInStation, chBestHit = -1, iHit, iSegment, station, trackIndex;
+ Double_t bestChi2, chi2, dZ1, dZ2, dZ3, maxSigma2Distance, mcsFactor;
+ Double_t bendingMomentum, chi2Norm = 0.;
+
+ // local maxSigma2Distance, for easy increase in testing
+ maxSigma2Distance = fMaxSigma2Distance;
+ AliDebug(2,"Enter FollowTracks");
+ // Loop over track candidates
+ track = (AliMUONTrack*) fRecTracksPtr->First();
+ trackIndex = -1;
+ while (track) {
+ // Follow function for each track candidate ????
+ trackIndex++;
+ nextTrack = (AliMUONTrack*) fRecTracksPtr->After(track); // prepare next track
+ AliDebug(2,Form("FollowTracks: track candidate(0..): %d", trackIndex));
+ // Fit track candidate
+ track->SetFitMCS(0); // without multiple Coulomb scattering
+ track->SetFitNParam(3); // with 3 parameters (X = Y = 0)
+ track->SetFitStart(0); // from parameters at vertex
+ track->Fit();
+ if (AliLog::GetGlobalDebugLevel()> 2) {
+ cout << "FollowTracks: track candidate(0..): " << trackIndex
+ << " after fit in stations(0..) 3 and 4" << endl;
+ track->RecursiveDump();
+ }
+ // Loop over stations(1..) 3, 2 and 1
+ // something SPECIAL for stations 2 and 1 for majority 3 coincidence ????
+ // otherwise: majority coincidence 2 !!!!
+ for (station = 2; station >= 0; station--) {
+ // Track parameters at first track hit (smallest Z)
+ trackParam1 = ((AliMUONTrackHit*)
+ (track->GetTrackHitsPtr()->First()))->GetTrackParam();
+ // extrapolation to station
+ trackParam1->ExtrapToStation(station, trackParam);
+ extrapSegment = new AliMUONSegment(); // empty segment
+ // multiple scattering factor corresponding to one chamber
+ // and momentum in bending plane (not total)
+ mcsFactor = 0.0136 * trackParam1->GetInverseBendingMomentum();
+ mcsFactor = fChamberThicknessInX0 * mcsFactor * mcsFactor;
+ // Z difference from previous station
+ dZ1 = AliMUONConstants::DefaultChamberZ(2 * station) -
+ AliMUONConstants::DefaultChamberZ(2 * station + 2);
+ // Z difference between the two previous stations
+ dZ2 = AliMUONConstants::DefaultChamberZ(2 * station + 2) -
+ AliMUONConstants::DefaultChamberZ(2 * station + 4);
+ // Z difference between the two chambers in the previous station
+ dZ3 = AliMUONConstants::DefaultChamberZ(2 * station) -
+ AliMUONConstants::DefaultChamberZ(2 * station + 1);
+ extrapSegment->SetBendingCoorReso2(fBendingResolution * fBendingResolution);
+ extrapSegment->
+ SetNonBendingCoorReso2(fNonBendingResolution * fNonBendingResolution);
+ extrapSegment->UpdateFromStationTrackParam
+ (trackParam, mcsFactor, dZ1, dZ2, dZ3, station,
+ trackParam1->GetInverseBendingMomentum());
+ bestChi2 = 5.0;
+ bestSegment = NULL;
+ if (AliLog::GetGlobalDebugLevel() > 2) {
+ cout << "FollowTracks: track candidate(0..): " << trackIndex
+ << " Look for segment in station(0..): " << station << endl;
+ }
+ // Loop over segments in station
+ for (iSegment = 0; iSegment < fNSegments[station]; iSegment++) {
+ // Look for best compatible Segment in station
+ // should consider all possibilities ????
+ // multiple scattering ????
+ // separation in 2 functions: Segment and HitForRec ????
+ segment = (AliMUONSegment*) ((*fSegmentsPtr[station])[iSegment]);
+ // correction of corrected segment (fBendingCoor and fNonBendingCoor)
+ // according to real Z value of "segment" and slopes of "extrapSegment"
+ (&(trackParam[0]))->ExtrapToZ(segment->GetZ());
+ (&(trackParam[1]))->ExtrapToZ(segment->GetZ());
+ extrapSegment->SetBendingCoor((&(trackParam[0]))->GetBendingCoor());
+ extrapSegment->SetNonBendingCoor((&(trackParam[0]))->GetNonBendingCoor());
+ extrapSegment->SetBendingSlope((&(trackParam[0]))->GetBendingSlope());
+ extrapSegment->SetNonBendingSlope((&(trackParam[0]))->GetNonBendingSlope());
+ chi2 = segment->
+ NormalizedChi2WithSegment(extrapSegment, maxSigma2Distance);
+ if (chi2 < bestChi2) {
+ // update best Chi2 and Segment if better found
+ bestSegment = segment;
+ bestChi2 = chi2;
+ }
+ }
+ if (bestSegment) {
+ // best segment found: add it to track candidate
+ (&(trackParam[0]))->ExtrapToZ(bestSegment->GetZ());
+ (&(trackParam[1]))->ExtrapToZ(bestSegment->GetZ());
+ track->AddSegment(bestSegment);
+ // set track parameters at these two TrakHit's
+ track->SetTrackParamAtHit(track->GetNTrackHits() - 2, &(trackParam[0]));
+ track->SetTrackParamAtHit(track->GetNTrackHits() - 1, &(trackParam[1]));
+ AliDebug(3, Form("FollowTracks: track candidate(0..): %d Added segment in station(0..): %d", trackIndex, station));
+ if (AliLog::GetGlobalDebugLevel()>2) track->RecursiveDump();
+ }
+ else {
+ // No best segment found:
+ // Look for best compatible HitForRec in station:
+ // should consider all possibilities ????
+ // multiple scattering ???? do about like for extrapSegment !!!!
+ extrapHit = new AliMUONHitForRec(); // empty hit
+ bestChi2 = 3.0;
+ bestHit = NULL;
+ AliDebug(3, Form("FollowTracks: track candidate(0..): %d Segment not found, look for hit in station(0..): %d ",
+ trackIndex, station));
- treeR->Reset();
+ // Loop over chambers of the station
+ for (chInStation = 0; chInStation < 2; chInStation++) {
+ ch = 2 * station + chInStation;
+ for (iHit = fIndexOfFirstHitForRecPerChamber[ch];
+ iHit < fIndexOfFirstHitForRecPerChamber[ch] +
+ fNHitsForRecPerChamber[ch];
+ iHit++) {
+ hit = (AliMUONHitForRec*) ((*fHitsForRecPtr)[iHit]);
+ // coordinates of extrapolated hit
+ (&(trackParam[chInStation]))->ExtrapToZ(hit->GetZ());
+ extrapHit->
+ SetBendingCoor((&(trackParam[chInStation]))->GetBendingCoor());
+ extrapHit->
+ SetNonBendingCoor((&(trackParam[chInStation]))->GetNonBendingCoor());
+ // resolutions from "extrapSegment"
+ extrapHit->SetBendingReso2(extrapSegment->GetBendingCoorReso2());
+ extrapHit->SetNonBendingReso2(extrapSegment->GetNonBendingCoorReso2());
+ // Loop over hits in the chamber
+ // condition for hit not already in segment ????
+ chi2 = hit->NormalizedChi2WithHitForRec(extrapHit, maxSigma2Distance);
+ if (chi2 < bestChi2) {
+ // update best Chi2 and HitForRec if better found
+ bestHit = hit;
+ bestChi2 = chi2;
+ chBestHit = chInStation;
+ }
+ }
+ }
+ if (bestHit) {
+ // best hit found: add it to track candidate
+ (&(trackParam[chBestHit]))->ExtrapToZ(bestHit->GetZ());
+ track->AddHitForRec(bestHit);
+ // set track parameters at this TrackHit
+ track->SetTrackParamAtHit(track->GetNTrackHits() - 1,
+ &(trackParam[chBestHit]));
+ if (AliLog::GetGlobalDebugLevel() > 2) {
+ cout << "FollowTracks: track candidate(0..): " << trackIndex
+ << " Added hit in station(0..): " << station << endl;
+ track->RecursiveDump();
+ }
+ }
+ else {
+ // Remove current track candidate
+ // and corresponding TrackHit's, ...
+ track->Remove();
+ delete extrapSegment;
+ delete extrapHit;
+ break; // stop the search for this candidate:
+ // exit from the loop over station
+ }
+ delete extrapHit;
+ }
+ delete extrapSegment;
+ // Sort track hits according to increasing Z
+ track->GetTrackHitsPtr()->Sort();
+ // Update track parameters at first track hit (smallest Z)
+ trackParam1 = ((AliMUONTrackHit*)
+ (track->GetTrackHitsPtr()->First()))->GetTrackParam();
+ bendingMomentum = 0.;
+ if (TMath::Abs(trackParam1->GetInverseBendingMomentum()) > 0.)
+ bendingMomentum = TMath::Abs(1/(trackParam1->GetInverseBendingMomentum()));
+ // Track removed if bendingMomentum not in window [min, max]
+ if ((bendingMomentum < fMinBendingMomentum) || (bendingMomentum > fMaxBendingMomentum)) {
+ track->Remove();
+ break; // stop the search for this candidate:
+ // exit from the loop over station
+ }
+ // Track fit
+ // with multiple Coulomb scattering if all stations
+ if (station == 0) track->SetFitMCS(1);
+ // without multiple Coulomb scattering if not all stations
+ else track->SetFitMCS(0);
+ track->SetFitNParam(5); // with 5 parameters (momentum and position)
+ track->SetFitStart(1); // from parameters at first hit
+ track->Fit();
+ Double_t numberOfDegFree = (2.0 * track->GetNTrackHits() - 5);
+ if (numberOfDegFree > 0) {
+ chi2Norm = track->GetFitFMin() / numberOfDegFree;
+ } else {
+ chi2Norm = 1.e10;
+ }
+ // Track removed if normalized chi2 too high
+ if (chi2Norm > fMaxChi2) {
+ track->Remove();
+ break; // stop the search for this candidate:
+ // exit from the loop over station
+ }
+ if (AliLog::GetGlobalDebugLevel() > 2) {
+ cout << "FollowTracks: track candidate(0..): " << trackIndex
+ << " after fit from station(0..): " << station << " to 4" << endl;
+ track->RecursiveDump();
+ }
+ // Track extrapolation to the vertex through the absorber (Branson)
+ // after going through the first station
+ if (station == 0) {
+ trackParamVertex = *trackParam1;
+ (&trackParamVertex)->ExtrapToVertex(0.,0.,0.);
+ track->SetTrackParamAtVertex(&trackParamVertex);
+ if (AliLog::GetGlobalDebugLevel() > 0) {
+ cout << "FollowTracks: track candidate(0..): " << trackIndex
+ << " after extrapolation to vertex" << endl;
+ track->RecursiveDump();
+ }
+ }
+ } // for (station = 2;...
+ // go really to next track
+ track = nextTrack;
+ } // while (track)
+ // Compression of track array (necessary after Remove ????)
+ fRecTracksPtr->Compress();
+ return;
+}
- gAliFileGlobal->cd();
+ //__________________________________________________________________________
+void AliMUONTrackReconstructor::RemoveDoubleTracks(void)
+{
+ // To remove double tracks.
+ // Tracks are considered identical
+ // if they have at least half of their hits in common.
+ // Among two identical tracks, one keeps the track with the larger number of hits
+ // or, if these numbers are equal, the track with the minimum Chi2.
+ AliMUONTrack *track1, *track2, *trackToRemove;
+ Bool_t identicalTracks;
+ Int_t hitsInCommon, nHits1, nHits2;
+ identicalTracks = kTRUE;
+ while (identicalTracks) {
+ identicalTracks = kFALSE;
+ // Loop over first track of the pair
+ track1 = (AliMUONTrack*) fRecTracksPtr->First();
+ while (track1 && (!identicalTracks)) {
+ nHits1 = track1->GetNTrackHits();
+ // Loop over second track of the pair
+ track2 = (AliMUONTrack*) fRecTracksPtr->After(track1);
+ while (track2 && (!identicalTracks)) {
+ nHits2 = track2->GetNTrackHits();
+ // number of hits in common between two tracks
+ hitsInCommon = track1->HitsInCommon(track2);
+ // check for identical tracks
+ if ((4 * hitsInCommon) >= (nHits1 + nHits2)) {
+ identicalTracks = kTRUE;
+ // decide which track to remove
+ if (nHits1 > nHits2) trackToRemove = track2;
+ else if (nHits1 < nHits2) trackToRemove = track1;
+ else if ((track1->GetFitFMin()) < (track2->GetFitFMin()))
+ trackToRemove = track2;
+ else trackToRemove = track1;
+ // remove it
+ trackToRemove->Remove();
+ }
+ track2 = (AliMUONTrack*) fRecTracksPtr->After(track2);
+ } // track2
+ track1 = (AliMUONTrack*) fRecTracksPtr->After(track1);
+ } // track1
+ }
+ return;
+}
- } // if pMUON
+ //__________________________________________________________________________
+void AliMUONTrackReconstructor::UpdateTrackParamAtHit()
+{
+ // Set track parameters after track fitting. Fill fTrackParamAtHit of AliMUONTrack's
+ AliMUONTrack *track;
+ AliMUONTrackHit *trackHit;
+ AliMUONTrackParam *trackParam;
+ track = (AliMUONTrack*) fRecTracksPtr->First();
+ while (track) {
+ trackHit = (AliMUONTrackHit*) (track->GetTrackHitsPtr())->First();
+ while (trackHit) {
+ trackParam = trackHit->GetTrackParam();
+ track->AddTrackParamAtHit(trackParam);
+ trackHit = (AliMUONTrackHit*) (track->GetTrackHitsPtr())->After(trackHit);
+ } // trackHit
+ track = (AliMUONTrack*) fRecTracksPtr->After(track);
+ } // track
+ return;
}
-//____________________________________________________________________________
-void trackf_fit(Int_t &ivertex, Double_t *pest, Double_t *pstep, Double_t &pxzinv, Double_t &tphi, Double_t &talam, Double_t &xvert, Double_t &yvert)
+ //__________________________________________________________________________
+void AliMUONTrackReconstructor::UpdateHitForRecAtHit()
{
- //
- // Fit a track candidate with the following input parameters:
- // INPUT : IVERTEX : vertex flag, if IVERTEX=1 (XVERT,YVERT) are free paramaters
- // if IVERTEX=1 (XVERT,YVERT)=(0.,0.)
- // PEST(5) : starting value of parameters (minuit)
- // PSTEP(5) : step size for parameters (minuit)
- // OUTPUT : PXZINV,TPHI,TALAM,XVERT,YVERT : fitted value of the parameters
-
- static Double_t arglist[10];
- static Double_t c[5] = {0.4, 0.45, 0.45, 90., 90.};
- static Double_t b1, b2, epxz, efi, exs, exvert, eyvert;
- TString chname;
- Int_t ierflg = 0;
-
- TMinuit *gMinuit = new TMinuit(5);
- gMinuit->mninit(5,10,7);
- gMinuit->SetFCN(fcnf); // constant m.f.
+ // Set cluster parameterss after track fitting. Fill fHitForRecAtHit of AliMUONTrack's
+ AliMUONTrack *track;
+ AliMUONTrackHit *trackHit;
+ AliMUONHitForRec *hitForRec;
+ track = (AliMUONTrack*) fRecTracksPtr->First();
+ while (track) {
+ trackHit = (AliMUONTrackHit*) (track->GetTrackHitsPtr())->First();
+ while (trackHit) {
+ hitForRec = trackHit->GetHitForRecPtr();
+ track->AddHitForRecAtHit(hitForRec);
+ trackHit = (AliMUONTrackHit*) (track->GetTrackHitsPtr())->After(trackHit);
+ } // trackHit
+ track = (AliMUONTrack*) fRecTracksPtr->After(track);
+ } // track
+ return;
+}
- arglist[0] = -1;
-
- gMinuit->mnexcm("SET PRINT", arglist, 1, ierflg);
- // gMinuit->mnseti('track fitting');
-
- gMinuit->mnparm(0, "invmom", pest[0], pstep[0], -c[0], c[0], ierflg);
- gMinuit->mnparm(1, "azimuth", pest[1], pstep[1], -c[1], c[1], ierflg);
- gMinuit->mnparm(2, "deep", pest[2], pstep[2], -c[2], c[2], ierflg);
- if (ivertex==1) {
- gMinuit->mnparm(3, "x ", pest[3], pstep[3], -c[3], c[3], ierflg);
- gMinuit->mnparm(4, "y ", pest[4], pstep[4], -c[4], c[4], ierflg);
- }
-
- gMinuit->mnexcm("SET NOGR", arglist, 0, ierflg);
- gMinuit->mnexcm("MINIMIZE", arglist, 0, ierflg);
- gMinuit->mnexcm("EXIT" , arglist, 0, ierflg);
+ //__________________________________________________________________________
+void AliMUONTrackReconstructor::FillMUONTrack()
+{
+ // Set track parameters at hits for Kalman track. Fill fTrackParamAtHit of AliMUONTrack's
+ AliMUONTrackK *track;
+ track = (AliMUONTrackK*) fRecTracksPtr->First();
+ while (track) {
+ track->FillMUONTrack();
+ track = (AliMUONTrackK*) fRecTracksPtr->After(track);
+ }
+ return;
+}
+
+ //__________________________________________________________________________
+void AliMUONTrackReconstructor::EventDump(void)
+{
+ // Dump reconstructed event (track parameters at vertex and at first hit),
+ // and the particle parameters
+
+ AliMUONTrack *track;
+ AliMUONTrackParam *trackParam, *trackParam1;
+ Double_t bendingSlope, nonBendingSlope, pYZ;
+ Double_t pX, pY, pZ, x, y, z, c;
+ Int_t np, trackIndex, nTrackHits;
+
+ AliDebug(1,"****** enter EventDump ******");
+ AliDebug(1, Form("Number of Reconstructed tracks : %d", fNRecTracks));
- gMinuit->mnpout(0, chname, pxzinv, epxz, b1, b2, ierflg);
- gMinuit->mnpout(1, chname, tphi, efi, b1, b2, ierflg);
- gMinuit->mnpout(2, chname, talam, exs, b1, b2, ierflg);
- if (ivertex==1) {
- gMinuit->mnpout(3, chname, xvert, exvert, b1, b2, ierflg);
- gMinuit->mnpout(4, chname, yvert, eyvert, b1, b2, ierflg);
- }
+ fRecTracksPtr->Compress(); // for simple loop without "Next" since no hole
+ // Loop over reconstructed tracks
+ for (trackIndex = 0; trackIndex < fNRecTracks; trackIndex++) {
+ if (fTrackMethod != 1) continue; //AZ - skip the rest for now
+ AliDebug(1, Form("track number: %d", trackIndex));
+ // function for each track for modularity ????
+ track = (AliMUONTrack*) ((*fRecTracksPtr)[trackIndex]);
+ nTrackHits = track->GetNTrackHits();
+ AliDebug(1, Form("Number of track hits: %d ", nTrackHits));
+ // track parameters at Vertex
+ trackParam = track->GetTrackParamAtVertex();
+ x = trackParam->GetNonBendingCoor();
+ y = trackParam->GetBendingCoor();
+ z = trackParam->GetZ();
+ bendingSlope = trackParam->GetBendingSlope();
+ nonBendingSlope = trackParam->GetNonBendingSlope();
+ pYZ = 1/TMath::Abs(trackParam->GetInverseBendingMomentum());
+ pZ = pYZ/TMath::Sqrt(1+bendingSlope*bendingSlope);
+ pX = pZ * nonBendingSlope;
+ pY = pZ * bendingSlope;
+ c = TMath::Sign(1.0, trackParam->GetInverseBendingMomentum());
+ AliDebug(1, Form("Track parameters at Vertex z= %f: X= %f Y= %f pX= %f pY= %f pZ= %f c= %f\n",
+ z, x, y, pX, pY, pZ, c));
+
+ // track parameters at first hit
+ trackParam1 = ((AliMUONTrackHit*)
+ (track->GetTrackHitsPtr()->First()))->GetTrackParam();
+ x = trackParam1->GetNonBendingCoor();
+ y = trackParam1->GetBendingCoor();
+ z = trackParam1->GetZ();
+ bendingSlope = trackParam1->GetBendingSlope();
+ nonBendingSlope = trackParam1->GetNonBendingSlope();
+ pYZ = 1/TMath::Abs(trackParam1->GetInverseBendingMomentum());
+ pZ = pYZ/TMath::Sqrt(1.0 + bendingSlope * bendingSlope);
+ pX = pZ * nonBendingSlope;
+ pY = pZ * bendingSlope;
+ c = TMath::Sign(1.0, trackParam1->GetInverseBendingMomentum());
+ AliDebug(1, Form("track parameters at z= %f: X= %f Y= %f pX= %f pY= %f pZ= %f c= %f\n",
+ z, x, y, pX, pY, pZ, c));
+ }
+ // informations about generated particles NO !!!!!!!!
- delete gMinuit;
+// for (Int_t iPart = 0; iPart < np; iPart++) {
+// p = gAlice->Particle(iPart);
+// printf(" particle %d: type= %d px= %f py= %f pz= %f pdg= %d\n",
+// iPart, p->GetPdgCode(), p->Px(), p->Py(), p->Pz(), p->GetPdgCode());
+// }
+ return;
}
-
-//________________________________________________________________________________
-void fcnf(Int_t &npar, Double_t *grad, Double_t &fval, Double_t *pest, Int_t iflag)
+
+
+//__________________________________________________________________________
+void AliMUONTrackReconstructor::EventDumpTrigger(void)
{
- //
- // function called by trackf_fit
- Int_t futil = 0;
- fcn(npar,grad,fval,pest,iflag,futil);
+ // Dump reconstructed trigger event
+ // and the particle parameters
+
+ AliMUONTriggerTrack *triggertrack ;
+ Int_t nTriggerTracks = fMUONData->RecTriggerTracks()->GetEntriesFast();
+
+ AliDebug(1, "****** enter EventDumpTrigger ******");
+ AliDebug(1, Form("Number of Reconstructed tracks : %d ", nTriggerTracks));
+
+ // Loop over reconstructed tracks
+ for (Int_t trackIndex = 0; trackIndex < nTriggerTracks; trackIndex++) {
+ triggertrack = (AliMUONTriggerTrack*)fMUONData->RecTriggerTracks()->At(trackIndex);
+ printf(" trigger track number %i x11=%f y11=%f thetax=%f thetay=%f \n",
+ trackIndex,
+ triggertrack->GetX11(),triggertrack->GetY11(),
+ triggertrack->GetThetax(),triggertrack->GetThetay());
+ }
}
-//____________________________________________________________________________
-void prec_fit(Double_t &pxzinv, Double_t &fis, Double_t &alams, Double_t &xvert, Double_t &yvert, Double_t &pxzinvf, Double_t &fif, Double_t &alf, Double_t &xvertf, Double_t &yvertf, Double_t &epxzinv, Double_t &efi, Double_t &exs, Double_t &exvert, Double_t &eyvert)
+//__________________________________________________________________________
+void AliMUONTrackReconstructor::MakeTrackCandidatesK(void)
{
- //
- // minuit fits for tracking finding
-
- static Double_t arglist[10];
- static Double_t c1[5] = {0.001, 0.001, 0.001, 1., 1.};
- static Double_t c2[5] = {0.5, 0.5, 0.5, 120., 120.};
- static Double_t emat[9];
- static Double_t b1, b2;
- Double_t fmin, fedm, errdef;
- Int_t npari, nparx, istat;
-
- TString chname;
- Int_t ierflg = 0;
-
- TMinuit *gMinuit = new TMinuit(5);
- gMinuit->mninit(5,10,7);
- gMinuit->SetFCN(fcnfitf);
+ // To make initial tracks for Kalman filter from the list of segments
+ Int_t istat, iseg;
+ AliMUONSegment *segment;
+ AliMUONTrackK *trackK;
+
+ AliDebug(1,"Enter MakeTrackCandidatesK");
+
+ AliMUONTrackK a(this, fHitsForRecPtr);
+ // Loop over stations(1...) 5 and 4
+ for (istat=4; istat>=3; istat--) {
+ // Loop over segments in the station
+ for (iseg=0; iseg<fNSegments[istat]; iseg++) {
+ // Transform segments to tracks and evaluate covariance matrix
+ segment = (AliMUONSegment*) ((*fSegmentsPtr[istat])[iseg]);
+ trackK = new ((*fRecTracksPtr)[fNRecTracks++]) AliMUONTrackK(segment);
+ } // for (iseg=0;...)
+ } // for (istat=4;...)
+ return;
+}
- arglist[0] = -1.;
- gMinuit->mnexcm("SET PRINT", arglist, 1, ierflg);
-
- // gMinuit->mnseti('track fitting');
-
- gMinuit->mnparm(0,"invmom", pxzinv, c1[0], -c2[0], c2[0], ierflg); // 0.003, 0.5
- gMinuit->mnparm(1,"azimuth ", fis, c1[1], -c2[1], c2[1], ierflg);
- gMinuit->mnparm(2,"deep ", alams, c1[2], -c2[2], c2[2], ierflg);
- gMinuit->mnparm(3,"xvert", xvert, c1[3], -c2[3], c2[3], ierflg);
- gMinuit->mnparm(4,"yvert", yvert, c1[4], -c2[4], c2[4], ierflg);
-
- gMinuit->mnexcm("SET NOGR", arglist, 0, ierflg);
- arglist[0] = 2.;
- gMinuit->mnexcm("MINIMIZE", arglist, 0, ierflg);
- gMinuit->mnexcm("EXIT", arglist, 0, ierflg);
+//__________________________________________________________________________
+void AliMUONTrackReconstructor::FollowTracksK(void)
+{
+ // Follow tracks using Kalman filter
+ Bool_t ok;
+ Int_t icand, ichamBeg = 0, ichamEnd, chamBits;
+ Double_t zDipole1, zDipole2;
+ AliMUONTrackK *trackK;
+ AliMUONHitForRec *hit;
+ AliMUONRawCluster *clus;
+ TClonesArray *rawclusters;
+ clus = 0; rawclusters = 0;
+
+ zDipole1 = GetSimpleBPosition() + GetSimpleBLength()/2;
+ zDipole2 = zDipole1 - GetSimpleBLength();
+
+ // Print hits
+ trackK = (AliMUONTrackK*) ((*fRecTracksPtr)[0]);
+
+ if (trackK->DebugLevel() > 0) {
+ for (Int_t i1=0; i1<fNHitsForRec; i1++) {
+ hit = (AliMUONHitForRec*) ((*fHitsForRecPtr)[i1]);
+ printf(" Hit # %d %10.4f %10.4f %10.4f",
+ hit->GetChamberNumber(), hit->GetBendingCoor(),
+ hit->GetNonBendingCoor(), hit->GetZ());
- gMinuit->mnpout(0, chname, pxzinvf, epxzinv, b1, b2, ierflg);
- gMinuit->mnpout(1, chname, fif, efi, b1, b2, ierflg);
- gMinuit->mnpout(2, chname, alf, exs, b1, b2, ierflg);
- gMinuit->mnpout(3, chname, xvertf, exvert, b1, b2, ierflg);
- gMinuit->mnpout(4, chname, yvertf, eyvert, b1, b2, ierflg);
-
- gMinuit->mnemat(emat, 3);
- gMinuit->mnstat(fmin, fedm, errdef, npari, nparx, istat);
+ // from raw clusters
+ rawclusters = fMUONData->RawClusters(hit->GetChamberNumber());
+ clus = (AliMUONRawCluster*) rawclusters->UncheckedAt(hit->
+ GetHitNumber());
+ printf(" %d", clus->GetTrack(1));
+ if (clus->GetTrack(2) != -1) printf(" %d \n", clus->GetTrack(2));
+ else printf("\n");
+
+ }
+ } // if (trackK->DebugLevel() > 0)
+
+ icand = -1;
+ Int_t nSeeds;
+ nSeeds = fNRecTracks; // starting number of seeds
+ // Loop over track candidates
+ while (icand < fNRecTracks-1) {
+ icand ++;
+ if (trackK->DebugLevel()>0) cout << " *** Kalman track candidate No. " << icand << endl;
+ trackK = (AliMUONTrackK*) ((*fRecTracksPtr)[icand]);
+ if (trackK->GetRecover() < 0) continue; // failed track
+
+ // Discard candidate which will produce the double track
+ /*
+ if (icand > 0) {
+ ok = CheckCandidateK(icand,nSeeds);
+ if (!ok) {
+ trackK->SetRecover(-1); // mark candidate to be removed
+ continue;
+ }
+ }
+ */
+
+ ok = kTRUE;
+ if (trackK->GetRecover() == 0)
+ hit = (AliMUONHitForRec*) trackK->GetTrackHits()->Last(); // last hit
+ else
+ hit = trackK->GetHitLastOk(); // hit where track stopped
+
+ if (hit) ichamBeg = hit->GetChamberNumber();
+ ichamEnd = 0;
+ // Check propagation direction
+ if (!hit) { ichamBeg = ichamEnd; AliFatal(" ??? "); }
+ else if (trackK->GetTrackDir() < 0) {
+ ichamEnd = 9; // forward propagation
+ ok = trackK->KalmanFilter(ichamBeg,ichamEnd,kFALSE,zDipole1,zDipole2);
+ if (ok) {
+ ichamBeg = ichamEnd;
+ ichamEnd = 6; // backward propagation
+ // Change weight matrix and zero fChi2 for backpropagation
+ trackK->StartBack();
+ trackK->SetTrackDir(1);
+ ok = trackK->KalmanFilter(ichamBeg,ichamEnd,kTRUE,zDipole1,zDipole2);
+ ichamBeg = ichamEnd;
+ ichamEnd = 0;
+ }
+ } else {
+ if (trackK->GetBPFlag()) {
+ // backpropagation
+ ichamEnd = 6; // backward propagation
+ // Change weight matrix and zero fChi2 for backpropagation
+ trackK->StartBack();
+ ok = trackK->KalmanFilter(ichamBeg,ichamEnd,kTRUE,zDipole1,zDipole2);
+ ichamBeg = ichamEnd;
+ ichamEnd = 0;
+ }
+ }
+
+ if (ok) {
+ trackK->SetTrackDir(1);
+ trackK->SetBPFlag(kFALSE);
+ ok = trackK->KalmanFilter(ichamBeg,ichamEnd,kFALSE,zDipole1,zDipole2);
+ }
+ if (!ok) { trackK->SetRecover(-1); continue; } // mark candidate to be removed
- delete gMinuit;
+ // Apply smoother
+ if (trackK->GetRecover() >= 0) {
+ ok = trackK->Smooth();
+ if (!ok) trackK->SetRecover(-1); // mark candidate to be removed
+ }
+
+ // Majority 3 of 4 in first 2 stations
+ if (!ok) continue;
+ chamBits = 0;
+ Double_t chi2max = 0;
+ for (Int_t i=0; i<trackK->GetNTrackHits(); i++) {
+ hit = (AliMUONHitForRec*) (*trackK->GetTrackHits())[i];
+ chamBits |= BIT(hit->GetChamberNumber());
+ if (trackK->GetChi2PerPoint(i) > chi2max) chi2max = trackK->GetChi2PerPoint(i);
+ }
+ if (!((chamBits&3)==3 || (chamBits>>2&3)==3) && chi2max > 25) {
+ //trackK->Recover();
+ trackK->SetRecover(-1); //mark candidate to be removed
+ continue;
+ }
+ if (ok) trackK->SetTrackQuality(0); // compute "track quality"
+ } // while
+
+ for (Int_t i=0; i<fNRecTracks; i++) {
+ trackK = (AliMUONTrackK*) ((*fRecTracksPtr)[i]);
+ if (trackK->GetRecover() < 0) fRecTracksPtr->RemoveAt(i);
+ }
+
+ // Compress TClonesArray
+ fRecTracksPtr->Compress();
+ fNRecTracks = fRecTracksPtr->GetEntriesFast();
+ return;
+}
+
+//__________________________________________________________________________
+Bool_t AliMUONTrackReconstructor::CheckCandidateK(Int_t icand, Int_t nSeeds) const
+{
+ // Discards track candidate if it will produce the double track (having
+ // the same seed segment hits as hits of a good track found before)
+ AliMUONTrackK *track1, *track2;
+ AliMUONHitForRec *hit1, *hit2, *hit;
+
+ track1 = (AliMUONTrackK*) ((*fRecTracksPtr)[icand]);
+ hit1 = (AliMUONHitForRec*) (*track1->GetTrackHits())[0]; // 1'st hit
+ hit2 = (AliMUONHitForRec*) (*track1->GetTrackHits())[1]; // 2'nd hit
+
+ for (Int_t i=0; i<icand; i++) {
+ track2 = (AliMUONTrackK*) ((*fRecTracksPtr)[i]);
+ //if (track2->GetRecover() < 0) continue;
+ if (track2->GetRecover() < 0 && icand >= nSeeds) continue;
+
+ if (track1->GetStartSegment() == track2->GetStartSegment()) {
+ return kFALSE;
+ } else {
+ Int_t nSame = 0;
+ for (Int_t j=0; j<track2->GetNTrackHits(); j++) {
+ hit = (AliMUONHitForRec*) (*track2->GetTrackHits())[j];
+ if (hit == hit1 || hit == hit2) {
+ nSame++;
+ if (nSame == 2) return kFALSE;
+ }
+ } // for (Int_t j=0;
+ }
+ } // for (Int_t i=0;
+ return kTRUE;
}
-//____________________________________________________________________
-void fcnfitf(Int_t &npar, Double_t *grad, Double_t &fval, Double_t *xval, Int_t iflag)
+//__________________________________________________________________________
+void AliMUONTrackReconstructor::RemoveDoubleTracksK(void)
{
- //
- // function called by prec_fit
- Int_t futil = 0;
- fcnfit(npar,grad,fval,xval,iflag,futil);
+ // Removes double tracks (sharing more than half of their hits). Keeps
+ // the track with higher quality
+ AliMUONTrackK *track1, *track2, *trackToKill;
+
+ // Sort tracks according to their quality
+ fRecTracksPtr->Sort();
+
+ // Loop over first track of the pair
+ track1 = (AliMUONTrackK*) fRecTracksPtr->First();
+ Int_t debug = track1->DebugLevel();
+ while (track1) {
+ // Loop over second track of the pair
+ track2 = (AliMUONTrackK*) fRecTracksPtr->After(track1);
+ while (track2) {
+ // Check whether or not to keep track2
+ if (!track2->KeepTrack(track1)) {
+ if (debug >= 0) cout << " Killed track: " << 1/(*track2->GetTrackParameters())(4,0) <<
+ " " << track2->GetTrackQuality() << endl;
+ trackToKill = track2;
+ track2 = (AliMUONTrackK*) fRecTracksPtr->After(track2);
+ trackToKill->Kill();
+ fRecTracksPtr->Compress();
+ } else track2 = (AliMUONTrackK*) fRecTracksPtr->After(track2);
+ } // track2
+ track1 = (AliMUONTrackK*) fRecTracksPtr->After(track1);
+ } // track1
+
+ fNRecTracks = fRecTracksPtr->GetEntriesFast();
+ if (debug >= 0) cout << " Number of Kalman tracks: " << fNRecTracks << endl;
+}
+
+//__________________________________________________________________________
+void AliMUONTrackReconstructor::GoToVertex(void)
+{
+ // Propagates track to the vertex thru absorber
+ // (using Branson correction for now)
+
+ Double_t zVertex;
+ zVertex = 0;
+ for (Int_t i=0; i<fNRecTracks; i++) {
+ //((AliMUONTrackK*)(*fRecTracksPtr)[i])->Branson();
+ ((AliMUONTrackK*)(*fRecTracksPtr)[i])->SetTrackQuality(1); // compute Chi2
+ //((AliMUONTrackK*)(*fRecTracksPtr)[i])->GoToZ(zVertex); // w/out absorber
+ ((AliMUONTrackK*)(*fRecTracksPtr)[i])->GoToVertex(1); // with absorber
+ }
+}
+
+//__________________________________________________________________________
+void AliMUONTrackReconstructor::SetTrackMethod(Int_t iTrackMethod)
+{
+ // Set track method and recreate track container if necessary
+
+ fTrackMethod = TMath::Min (iTrackMethod, 3);
+ fTrackMethod = TMath::Max (fTrackMethod, 1);
+ if (fTrackMethod != 1) {
+ if (fRecTracksPtr) delete fRecTracksPtr;
+ fRecTracksPtr = new TClonesArray("AliMUONTrackK", 10);
+ if (fTrackMethod == 2) cout << " *** Tracking with the Kalman filter *** " << endl;
+ else cout << " *** Combined cluster / track finder ***" << endl;
+ } else cout << " *** Original tracking *** " << endl;
+
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff