/* $Id$ */
-//__________________________________________________________________________
-//
+// ------------------------
+// Class AliMUONHitForRec
+// ------------------------
// Hit for reconstruction in ALICE dimuon spectrometer
-//__________________________________________________________________________
+// Author: J. Gosset
+#include "AliTrackReference.h"
#include "AliMUONHitForRec.h"
-#include "AliMUONTrackParam.h"
#include "AliMUONRawCluster.h"
#include "AliMUONHit.h"
+#include "AliMUONConstants.h"
+#include "AliLog.h"
+#include "Riostream.h"
+/// \cond CLASSIMP
ClassImp(AliMUONHitForRec) // Class implementation in ROOT context
+/// \endcond
//__________________________________________________________________________
-AliMUONHitForRec::AliMUONHitForRec(AliMUONHit* Ghit)
+AliMUONHitForRec::AliMUONHitForRec()
+ : TObject(),
+ fBendingCoor(0.),
+ fNonBendingCoor(0.),
+ fZ(0.),
+ fBendingReso2(0.),
+ fNonBendingReso2(0.),
+ fChamberNumber(0),
+ fDetElemId(0),
+ fHitNumber(0),
+ fTTRTrack(0),
+ fTrackRefSignal(0),
+ fIndexOfFirstSegment(0),
+ fNSegments(0),
+ fNTrackHits(0)
{
- // Constructor for AliMUONHitForRec from a GEANT hit.
- // Fills the bending, non bending, and Z coordinates,
- // which are taken from the coordinates of the GEANT hit,
- // the track number (GEANT and not TH),
- // and the chamber number (0...).
- fBendingCoor = Ghit->Y();
- fNonBendingCoor = Ghit->X();
- fZ = Ghit->Z();
- // fTrack = Ghit->fTrack; ?????????
- fChamberNumber = Ghit->Chamber() - 1;
+/// Default Constructor
+
+}
+
+ //__________________________________________________________________________
+AliMUONHitForRec::AliMUONHitForRec(AliTrackReference* theGhit)
+ : TObject(),
+ fBendingCoor(theGhit->Y()),
+ fNonBendingCoor(theGhit->X()),
+ fZ(theGhit->Z()),
+ fBendingReso2(0.),
+ fNonBendingReso2(0.),
+ fChamberNumber(0),
+ fDetElemId(0),
+ fHitNumber(0),
+ fTTRTrack(0),
+ fTrackRefSignal(0),
+ fIndexOfFirstSegment(-1),
+ fNSegments(0),
+ fNTrackHits(0)
+{
+/// Constructor for AliMUONHitForRec from a track ref. hit.
+/// Fills the bending, non bending, and Z coordinates,
+/// which are taken from the coordinates of the track ref. hit,
+/// the track number (track ref. and not TH),
+/// and the chamber number (0...).
+
+ // fTrack = theGhit->fTrack; ?????????
+ fDetElemId = theGhit->UserId();
+ if (fDetElemId) fChamberNumber = fDetElemId / 100 - 1;
+ else fChamberNumber = AliMUONConstants::ChamberNumber(fZ);
// other fields will be updated in
- // AliMUONEventReconstructor::NewHitForRecFromGEANT,
- // except the following ones
- fIndexOfFirstSegment = -1;
- fNSegments = 0;
- fFirstTrackHitPtr = fLastTrackHitPtr = NULL;
- fNTrackHits = 0;
+ // AliMUONEventReconstructor::NewHitForRecFromTrackRef
return;
}
// }
//__________________________________________________________________________
-AliMUONHitForRec::AliMUONHitForRec(AliMUONRawCluster* RawCluster)
+AliMUONHitForRec::AliMUONHitForRec(AliMUONRawCluster* theRawCluster)
+ : TObject(),
+ fBendingCoor(theRawCluster->GetY(0)),
+ fNonBendingCoor(theRawCluster->GetX(0)),
+ fZ(0.),
+ fBendingReso2(0.),
+ fNonBendingReso2(0.),
+ fChamberNumber(0),
+ fDetElemId(theRawCluster->GetDetElemId()),
+ fHitNumber(0),
+ fTTRTrack(-1),
+ fTrackRefSignal(-1),
+ fIndexOfFirstSegment(-1),
+ fNSegments(0),
+ fNTrackHits(0)
{
- // Constructor for AliMUONHitForRec from a raw cluster.
- // Fills the bending and non bending coordinates.
- fNonBendingCoor = RawCluster->fX[0];
- fBendingCoor = RawCluster->fY[0];
+/// Constructor for AliMUONHitForRec from a raw cluster.
+/// Fills the bending and non bending coordinates.
+
// other fields will be updated in
// AliMUONEventReconstructor::AddHitsForRecFromRawClusters,
- // except the following ones
- fTHTrack = -1;
- fGeantSignal = -1;
- fIndexOfFirstSegment = -1;
- fNSegments = 0;
- fFirstTrackHitPtr = fLastTrackHitPtr = NULL;
- fNTrackHits = 0;
return;
}
-AliMUONHitForRec::AliMUONHitForRec (const AliMUONHitForRec& MUONHitForRec):TObject(MUONHitForRec)
+ //__________________________________________________________________________
+AliMUONHitForRec::AliMUONHitForRec (const AliMUONHitForRec& theMUONHitForRec)
+ : TObject(theMUONHitForRec),
+ fBendingCoor(theMUONHitForRec.fBendingCoor),
+ fNonBendingCoor(theMUONHitForRec.fNonBendingCoor),
+ fZ(theMUONHitForRec.fZ),
+ fBendingReso2(theMUONHitForRec.fBendingReso2),
+ fNonBendingReso2(theMUONHitForRec.fNonBendingReso2),
+ fChamberNumber(theMUONHitForRec.fChamberNumber),
+ fDetElemId(theMUONHitForRec.fDetElemId),
+ fHitNumber(theMUONHitForRec.fHitNumber),
+ fTTRTrack(theMUONHitForRec.fTTRTrack),
+ fTrackRefSignal(theMUONHitForRec.fTrackRefSignal),
+ fIndexOfFirstSegment(theMUONHitForRec.fIndexOfFirstSegment),
+ fNSegments(theMUONHitForRec.fNSegments),
+ fNTrackHits(theMUONHitForRec.fNTrackHits)
{
-// Dummy copy constructor
+/// Copy constructor
+
}
-AliMUONHitForRec & AliMUONHitForRec::operator=(const AliMUONHitForRec& /*MUONHitForRec*/)
+ //__________________________________________________________________________
+AliMUONHitForRec & AliMUONHitForRec::operator=(const AliMUONHitForRec& theMUONHitForRec)
{
-// Dummy assignment operator
- return *this;
+/// Assignment operator
+
+ fBendingCoor = theMUONHitForRec.fBendingCoor;
+ fNonBendingCoor = theMUONHitForRec.fNonBendingCoor;
+ fZ = theMUONHitForRec.fZ;
+ fBendingReso2 = theMUONHitForRec.fBendingReso2;
+ fNonBendingReso2 = theMUONHitForRec.fNonBendingReso2;
+ fChamberNumber = theMUONHitForRec.fChamberNumber;
+ fDetElemId = theMUONHitForRec.fDetElemId;
+ fHitNumber = theMUONHitForRec.fHitNumber;
+ fTTRTrack = theMUONHitForRec.fTTRTrack;
+ fTrackRefSignal = theMUONHitForRec.fTrackRefSignal;
+ fIndexOfFirstSegment = theMUONHitForRec.fIndexOfFirstSegment;
+ fNSegments = theMUONHitForRec.fNSegments;
+ fNTrackHits = theMUONHitForRec.fNTrackHits;
+ return *this;
}
//__________________________________________________________________________
/*AZ
//__________________________________________________________________________
Int_t AliMUONHitForRec::Compare(const TObject* Hit) const
{
- // "Compare" function to sort with increasing Z-coordinate.
- // Returns -1 (0, +1) if Z-coordinate of current HitForRec
- // is smaller than (equal to, larger than) Z-coordinate of Hit
- if (fZ < ((AliMUONHitForRec*)Hit)->fZ) return(-1);
+/// "Compare" function to sort with decreasing Z-coordinate (spectro. MUON z<0).
+/// Returns 1 (0, -1) if Z-coordinate of current HitForRec
+/// is smaller than (equal to, larger than) Z-coordinate of Hit
+
+ if (fZ < ((AliMUONHitForRec*)Hit)->fZ) return(1);
else if (fZ == ((AliMUONHitForRec*)Hit)->fZ) return( 0);
- else return(+1);
+ else return(-1);
}
//__________________________________________________________________________
-Double_t AliMUONHitForRec::NormalizedChi2WithHitForRec(AliMUONHitForRec* HitForRec, Double_t Sigma2Cut)
+Double_t AliMUONHitForRec::NormalizedChi2WithHitForRec(AliMUONHitForRec* hitForRec, Double_t Sigma2Cut) const
{
- // Calculate the normalized Chi2 between the current HitForRec (this)
- // and the HitForRec pointed to by "HitForRec",
- // i.e. the square deviations between the coordinates,
- // in both the bending and the non bending plane,
- // divided by the variance of the same quantities and by "Sigma2Cut".
- // Returns 3 if none of the 2 quantities is OK,
- // something smaller than or equal to 2 otherwise.
- // Would it be more correct to use a real chi square
- // including the non diagonal term ????
+/// Calculate the normalized Chi2 between the current hitForRec (this)
+/// and the hitForRec pointed to by "hitForRec",
+/// i.e. the square deviations between the coordinates,
+/// in both the bending and the non bending plane,
+/// divided by the variance of the same quantities and by "Sigma2Cut".
+/// Returns 3 if none of the 2 quantities is OK,
+/// something smaller than or equal to 2 otherwise.
+/// Would it be more correct to use a real chi square
+/// including the non diagonal term ????
+
Double_t chi2, chi2Max, diff, normDiff;
chi2 = 0.0;
chi2Max = 3.0;
// coordinate in bending plane
- diff = this->fBendingCoor - HitForRec->fBendingCoor;
+ diff = fBendingCoor - hitForRec->fBendingCoor;
normDiff = diff * diff /
- (this->fBendingReso2 + HitForRec->fBendingReso2) / Sigma2Cut;
+ (fBendingReso2 + hitForRec->fBendingReso2) / Sigma2Cut;
if (normDiff > 1.0) return chi2Max;
chi2 = chi2 + normDiff;
// coordinate in non bending plane
- diff = this->fNonBendingCoor - HitForRec->fNonBendingCoor;
+ diff = fNonBendingCoor - hitForRec->fNonBendingCoor;
normDiff = diff * diff /
- (this->fNonBendingReso2 + HitForRec->fNonBendingReso2) / Sigma2Cut;
+ (fNonBendingReso2 + hitForRec->fNonBendingReso2) / Sigma2Cut;
if (normDiff > 1.0) return chi2Max;
chi2 = chi2 + normDiff;
return chi2;
}
+
+//______________________________________________________________________________
+void
+AliMUONHitForRec::Print(Option_t* /*opt*/) const
+{
+/// Printing
+
+ cout << "<AliMUONHitForRec> Coordinates (B,NB,Z) = ("
+ << setw(8) << setprecision(5) << fBendingCoor
+ << "," << setw(8) << setprecision(5) << fNonBendingCoor << ","
+ << setw(8) << setprecision(5) << fZ << ") "
+ << "Reso (B,NB)=(" << setw(8) << setprecision(5) << TMath::Sqrt(fBendingReso2)
+ << "," << setw(8) << setprecision(5) << TMath::Sqrt(fNonBendingReso2)
+ << ") "
+ << "Number " << setw(3) << fHitNumber
+ << " within chamber " << setw(3) <<fChamberNumber
+ << " DE " << setw(4) << fDetElemId
+ << endl;
+}