* provided "as is" without express or implied warranty. *
**************************************************************************/
-/*
-$Log$
-Revision 1.14 2001/08/30 09:52:12 hristov
-The operator[] is replaced by At() or AddAt() in case of TObjArray.
-
-Revision 1.13 2001/05/03 08:11:31 hristov
-stdlib.h included to define exit()
-
-Revision 1.12 2001/04/25 14:50:42 gosset
-Corrections to violations of coding conventions
-
-Revision 1.11 2001/04/23 12:33:17 hristov
-Arrays with variable size created by new and deleted at the end
-
-Revision 1.10 2001/04/09 12:25:09 gosset
-Inversion of covariance matrices with local copy of TMinuit::mnvert,
-for symmetric positive definite matrices, instead of TMatrixD::Invert
-
-Revision 1.9 2001/01/17 20:59:24 hristov
-chPrev initialised
-
-Revision 1.8 2001/01/08 11:01:02 gosset
-Modifications used for addendum to Dimuon TDR (JP Cussonneau):
-*. MaxBendingMomentum to make both a segment and a track (default 500)
-*. MaxChi2 per degree of freedom to make a track (default 100)
-*. MinBendingMomentum used also to make a track
- and not only a segment (default 3)
-*. wider roads for track search in stations 1 to 3
-*. extrapolation to actual Z instead of Z(chamber) in FollowTracks
-*. in track fit:
- - limits on parameters X and Y (+/-500)
- - covariance matrices in double precision
- - normalization of covariance matrices before inversion
- - suppression of Minuit printouts
-*. correction against memory leak (delete extrapHit) in FollowTracks
-*. RMax to 10 degrees with Z(chamber) instead of fixed values;
- RMin and Rmax cuts suppressed in NewHitForRecFromGEANT,
- because useless with realistic geometry
-
-Revision 1.7 2000/09/19 15:50:46 gosset
-TrackChi2MCS function: covariance matrix better calculated,
-taking into account missing planes...
-
-Revision 1.6 2000/07/20 12:45:27 gosset
-New "EventReconstructor..." structure,
- hopefully more adapted to tree/streamer.
-"AliMUONEventReconstructor::RemoveDoubleTracks"
- to keep only one track among similar ones.
-
-Revision 1.5 2000/07/18 16:04:06 gosset
-AliMUONEventReconstructor package:
-* a few minor modifications and more comments
-* a few corrections
- * right sign for Z of raw clusters
- * right loop over chambers inside station
- * symmetrized covariance matrix for measurements (TrackChi2MCS)
- * right sign of charge in extrapolation (ExtrapToZ)
- * right zEndAbsorber for Branson correction below 3 degrees
-* use of TVirtualFitter instead of TMinuit for AliMUONTrack::Fit
-* no parameter for AliMUONTrack::Fit() but more fit parameters in Track object
-
-Revision 1.4 2000/06/30 10:15:48 gosset
-Changes to EventReconstructor...:
-precision fit with multiple Coulomb scattering;
-extrapolation to vertex with Branson correction in absorber (JPC)
-
-Revision 1.3 2000/06/25 13:23:28 hristov
-stdlib.h needed for non-Linux compilation
-
-Revision 1.2 2000/06/15 07:58:48 morsch
-Code from MUON-dev joined
-
-Revision 1.1.2.3 2000/06/12 10:11:34 morsch
-Dummy copy constructor and assignment operator added
-
-Revision 1.1.2.2 2000/06/09 12:58:05 gosset
-Removed comment beginnings in Log sections of .cxx files
-Suppressed most violations of coding rules
-
-Revision 1.1.2.1 2000/06/07 14:44:53 gosset
-Addition of files for track reconstruction in C++
-*/
+/* $Id$ */
///////////////////////////////////////////////////
//
//
///////////////////////////////////////////////////
-#include <Riostream.h> // for cout
#include <stdlib.h> // for exit()
-#include <TClonesArray.h>
+#include <Riostream.h> // for cout
#include <TMath.h>
#include <TMatrixD.h>
#include <TObjArray.h>
#include "AliMUONSegment.h"
#include "AliMUONTrack.h"
#include "AliMUONTrackHit.h"
+#include "AliMUONTriggerTrack.h"
+#include "AliMUONConstants.h"
// Functions to be minimized with Minuit
void TrackChi2(Int_t &NParam, Double_t *Gradient, Double_t &Chi2, Double_t *Param, Int_t Flag);
TVirtualFitter* AliMUONTrack::fgFitter = NULL;
+ //__________________________________________________________________________
+AliMUONTrack::AliMUONTrack()
+ : TObject()
+{
+ // Default constructor
+ fgFitter = 0;
+ fEventReconstructor = 0;
+ fTrackHitsPtr = 0;
+ fTrackParamAtHit = new TClonesArray("AliMUONTrackParam",10);
+}
+
//__________________________________________________________________________
AliMUONTrack::AliMUONTrack(AliMUONSegment* BegSegment, AliMUONSegment* EndSegment, AliMUONEventReconstructor* EventReconstructor)
+ : TObject()
{
// Constructor from two Segment's
fEventReconstructor = EventReconstructor; // link back to EventReconstructor
AddSegment(EndSegment); // add hits from EndSegment
fTrackHitsPtr->Sort(); // sort TrackHits according to increasing Z
SetTrackParamAtVertex(); // set track parameters at vertex
+ fTrackParamAtHit = new TClonesArray("AliMUONTrackParam",10);
// set fit conditions...
fFitMCS = 0;
fFitNParam = 3;
fFitStart = 1;
fFitFMin = -1.0;
+ fMatchTrigger = kFALSE;
+ fChi2MatchTrigger = 0;
return;
}
//__________________________________________________________________________
AliMUONTrack::AliMUONTrack(AliMUONSegment* Segment, AliMUONHitForRec* HitForRec, AliMUONEventReconstructor* EventReconstructor)
+ : TObject()
{
// Constructor from one Segment and one HitForRec
fEventReconstructor = EventReconstructor; // link back to EventReconstructor
AddHitForRec(HitForRec); // add HitForRec
fTrackHitsPtr->Sort(); // sort TrackHits according to increasing Z
SetTrackParamAtVertex(); // set track parameters at vertex
+ fTrackParamAtHit = new TClonesArray("AliMUONTrackParam",10);
// set fit conditions...
fFitMCS = 0;
fFitNParam = 3;
fFitStart = 1;
fFitFMin = -1.0;
+ fMatchTrigger = kFALSE;
+ fChi2MatchTrigger = 0;
return;
}
delete fTrackHitsPtr; // delete the TObjArray of pointers to TrackHit's
fTrackHitsPtr = NULL;
}
+
+ if (fTrackParamAtHit) {
+ // delete the TClonesArray of pointers to TrackParam
+ delete fTrackParamAtHit;
+ fTrackParamAtHit = NULL;
+ }
}
//__________________________________________________________________________
-AliMUONTrack::AliMUONTrack (const AliMUONTrack& MUONTrack)
+AliMUONTrack::AliMUONTrack (const AliMUONTrack& theMUONTrack)
+ : TObject(theMUONTrack)
{
-// Dummy copy constructor
+ //fEventReconstructor = new AliMUONEventReconstructor(*MUONTrack.fEventReconstructor);
+ // is it right ?
+ // NO, because it would use dummy copy constructor
+ // and AliMUONTrack is not the owner of its EventReconstructor
+ fEventReconstructor = theMUONTrack.fEventReconstructor;
+ fTrackParamAtVertex = theMUONTrack.fTrackParamAtVertex;
+ fTrackHitsPtr = new TObjArray(*theMUONTrack.fTrackHitsPtr); // is it right ?
+ fTrackParamAtHit = new TClonesArray(*theMUONTrack.fTrackParamAtHit);
+ fNTrackHits = theMUONTrack.fNTrackHits;
+ fFitMCS = theMUONTrack.fFitMCS;
+ fFitNParam = theMUONTrack.fFitNParam;
+ fFitFMin = theMUONTrack.fFitFMin;
+ fFitStart = theMUONTrack.fFitStart;
+ fMatchTrigger = theMUONTrack.fMatchTrigger;
+ fChi2MatchTrigger = theMUONTrack.fChi2MatchTrigger;
}
//__________________________________________________________________________
-AliMUONTrack & AliMUONTrack::operator=(const AliMUONTrack& MUONTrack)
+AliMUONTrack & AliMUONTrack::operator=(const AliMUONTrack& theMUONTrack)
{
-// Dummy assignment operator
+
+ // check assignement to self
+ if (this == &theMUONTrack)
return *this;
+
+ // base class assignement
+ TObject::operator=(theMUONTrack);
+
+ // fEventReconstructor = new AliMUONEventReconstructor(*MUONTrack.fEventReconstructor); // is it right ?
+ // is it right ? NO because it would use dummy copy constructor
+ fEventReconstructor = theMUONTrack.fEventReconstructor;
+ fTrackParamAtVertex = theMUONTrack.fTrackParamAtVertex;
+ fTrackHitsPtr = new TObjArray(*theMUONTrack.fTrackHitsPtr); // is it right ?
+ fTrackParamAtHit = new TClonesArray(*theMUONTrack.fTrackParamAtHit);
+ fNTrackHits = theMUONTrack.fNTrackHits;
+ fFitMCS = theMUONTrack.fFitMCS;
+ fFitNParam = theMUONTrack.fFitNParam;
+ fFitFMin = theMUONTrack.fFitFMin;
+ fFitStart = theMUONTrack.fFitStart;
+ fMatchTrigger = theMUONTrack.fMatchTrigger;
+ fChi2MatchTrigger = theMUONTrack.fChi2MatchTrigger;
+
+ return *this;
}
//__________________________________________________________________________
}
//__________________________________________________________________________
-Int_t AliMUONTrack::HitsInCommon(AliMUONTrack* Track)
+Int_t AliMUONTrack::HitsInCommon(AliMUONTrack* Track) const
{
// Returns the number of hits in common
// between the current track ("this")
return hitsInCommon;
}
+ //__________________________________________________________________________
+void AliMUONTrack::MatchTriggerTrack(TClonesArray *triggerTrackArray)
+{
+ // Match this track with one trigger track if possible
+ AliMUONTrackParam *trackParam;
+ AliMUONTriggerTrack *triggerTrack;
+ Double_t xTrack, yTrack, ySlopeTrack, dTrigTrackMin2, dTrigTrack2;
+ Double_t nSigmaCut2;
+
+ Double_t distSigma[3]={1,1,0.02}; // sigma of distributions (trigger-track) X,Y,slopeY
+ Double_t distTriggerTrack[3] = {0,0,0};
+
+ fMatchTrigger = kFALSE;
+ fChi2MatchTrigger = 0;
+
+ trackParam = (AliMUONTrackParam*) fTrackParamAtHit->Last();
+ trackParam->ExtrapToZ(AliMUONConstants::DefaultChamberZ(10)); // extrap to 1st trigger chamber
+
+ nSigmaCut2 = fEventReconstructor->GetMaxSigma2Distance(); // nb of sigma**2 for cut
+ xTrack = trackParam->GetNonBendingCoor();
+ yTrack = trackParam->GetBendingCoor();
+ ySlopeTrack = trackParam->GetBendingSlope();
+ dTrigTrackMin2 = 999;
+
+ triggerTrack = (AliMUONTriggerTrack*) triggerTrackArray->First();
+ while(triggerTrack){
+ distTriggerTrack[0] = (triggerTrack->GetX11()-xTrack)/distSigma[0];
+ distTriggerTrack[1] = (triggerTrack->GetY11()-yTrack)/distSigma[1];
+ distTriggerTrack[2] = (TMath::Tan(triggerTrack->GetThetay())-ySlopeTrack)/distSigma[2];
+ dTrigTrack2 = 0;
+ for (Int_t iVar = 0; iVar < 3; iVar++)
+ dTrigTrack2 += distTriggerTrack[iVar]*distTriggerTrack[iVar];
+ if (dTrigTrack2 < dTrigTrackMin2 && dTrigTrack2 < nSigmaCut2) {
+ dTrigTrackMin2 = dTrigTrack2;
+ fMatchTrigger = kTRUE;
+ fChi2MatchTrigger = dTrigTrack2/3.; // Normalized Chi2, 3 variables (X,Y,slopeY)
+ }
+ triggerTrack = (AliMUONTriggerTrack*) triggerTrackArray->After(triggerTrack);
+ }
+
+}
//__________________________________________________________________________
void AliMUONTrack::Fit()
{
// choice of function to be minimized according to fFitMCS
if (fFitMCS == 0) fgFitter->SetFCN(TrackChi2);
else fgFitter->SetFCN(TrackChi2MCS);
+ // Switch off printout
arg[0] = -1;
fgFitter->ExecuteCommand("SET PRINT", arg, 1); // More printing !!!!
+ // No warnings
+ fgFitter->ExecuteCommand("SET NOW", arg, 0);
// Parameters according to "fFitStart"
// (should be a function to be used at every place where needed ????)
if (fFitStart == 0) trackParam = &fTrackParamAtVertex;
// minimization
fgFitter->ExecuteCommand("MINIMIZE", arg, 0);
// exit from Minuit
- fgFitter->ExecuteCommand("EXIT", arg, 0); // necessary ????
+ // fgFitter->ExecuteCommand("EXIT", arg, 0); // necessary ????
// get results into "invBenP", "benC", "nonBenC" ("x", "y")
fgFitter->GetParameter(0, parName, invBenP, errorParam, lower, upper);
fgFitter->GetParameter(1, parName, benC, errorParam, lower, upper);
}
//__________________________________________________________________________
-void TrackChi2(Int_t &NParam, Double_t *Gradient, Double_t &Chi2, Double_t *Param, Int_t Flag)
+void TrackChi2(Int_t &NParam, Double_t * /*Gradient*/, Double_t &Chi2, Double_t *Param, Int_t /*Flag*/)
{
// Return the "Chi2" to be minimized with Minuit for track fitting,
// with "NParam" parameters
}
//__________________________________________________________________________
-void TrackChi2MCS(Int_t &NParam, Double_t *Gradient, Double_t &Chi2, Double_t *Param, Int_t Flag)
+void TrackChi2MCS(Int_t &NParam, Double_t * /*Gradient*/, Double_t &Chi2, Double_t *Param, Int_t /*Flag*/)
{
// Return the "Chi2" to be minimized with Minuit for track fitting,
// with "NParam" parameters
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff