/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
* See cxx source for full Copyright notice */
-/* $Id$ */
+/* $Id: AliTRDseedV1.h 60233 2013-01-10 09:04:08Z abercuci $ */
////////////////////////////////////////////////////////////////////////////
// //
class TTreeSRedirector;
class TLinearFitter;
-
+class TGeoHMatrix;
class AliRieman;
class AliTRDReconstructor;
,kMask = 0x3f // bit mask
,kNtb = 31 // max clusters/pad row
,kNclusters = 2*kNtb // max number of clusters/tracklet
- ,kNslices = 10 // max dEdx slices
+ ,kNdEdxSlices= 8 // dEdx slices allocated in reconstruction
};
// bits from 0-13 are reserved by ROOT (see TObject.h)
enum ETRDtrackletStatus {
kOwner = BIT(14) // owner of its clusters
,kRowCross = BIT(15) // pad row cross tracklet
- ,kPID = BIT(16) // PID contributor
+ ,kChmbGood = BIT(16) // status of the detector from calibration view point
,kCalib = BIT(17) // calibrated tracklet
,kKink = BIT(18) // kink prolongation tracklet
,kStandAlone = BIT(19) // tracklet build during stand alone track finding
AliTRDseedV1(const AliTRDseedV1 &ref);
AliTRDseedV1& operator=(const AliTRDseedV1 &ref);
- Bool_t AttachClusters(AliTRDtrackingChamber *const chamber, Bool_t tilt = kFALSE);
+ Bool_t AttachClusters(AliTRDtrackingChamber *const chamber, Bool_t tilt = kFALSE, Bool_t ChgPlus=kTRUE, Int_t ev=-1);
void Bootstrap(const AliTRDReconstructor *rec);
void Calibrate();
void CookdEdx(Int_t nslices);
void CookLabels();
Bool_t CookPID();
- Bool_t Fit(UChar_t opt=0);
- Bool_t Init(AliTRDtrackV1 *track);
+ Bool_t Fit(UChar_t opt=0); // OBSOLETE
+ Bool_t FitRobust(AliTRDpadPlane *pp, Bool_t sgn, Int_t chg, Int_t opt=0);
+ Double_t EstimatedCrossPoint(AliTRDpadPlane *pp);
+ Bool_t Init(const AliTRDtrackV1 *track);
void Init(const AliRieman *fit);
Bool_t IsEqual(const TObject *inTracklet) const;
Bool_t IsCalibrated() const { return TestBit(kCalib);}
+ Bool_t IsChmbGood() const { return TestBit(kChmbGood);}
Bool_t IsOwner() const { return TestBit(kOwner);}
Bool_t IsKink() const { return TestBit(kKink);}
Bool_t IsPrimary() const { return TestBit(kPrimary);}
- Bool_t HasPID() const { return TestBit(kPID);}
Bool_t HasError(ETRDtrackletError err) const
{ return TESTBIT(fErrorMsg, err);}
Bool_t IsOK() const { return GetN() > 4 && GetNUsed() < 4;}
Float_t GetAnodeWireOffset(Float_t zt);
Float_t GetC(Int_t typ=0) const { return fC[typ]; }
- Float_t GetCharge(Bool_t useOutliers=kFALSE);
+ Float_t GetCharge(Bool_t useOutliers=kFALSE) const;
Float_t GetChi2() const { return fChi2; }
inline Float_t GetChi2Z() const;
inline Float_t GetChi2Y() const;
UChar_t GetErrorMsg() const { return fErrorMsg;}
Float_t GetdX() const { return fdX;}
const Float_t* GetdEdx() const { return &fdEdx[0];}
+ Float_t GetQperTB(Int_t tb) const;
+ Float_t GetdQdl() const;
Float_t GetdQdl(Int_t ic, Float_t *dx=NULL) const;
Float_t GetdYdX() const { return fYfit[1];}
Float_t GetdZdX() const { return fZfit[1];}
Int_t GetdY() const { return Int_t(GetY()/0.014);}
Int_t GetDetector() const { return fDet;}
+ Int_t GetChargeGaps(Float_t sz[kNtb], Float_t pos[kNtb], Int_t ntb[kNtb]) const;
void GetCalibParam(Float_t &exb, Float_t &vd, Float_t &t0, Float_t &s2, Float_t &dl, Float_t &dt) const {
exb = fExB; vd = fVD; t0 = fT0; s2 = fS2PRF; dl = fDiffL; dt = fDiffT;}
AliTRDcluster* GetClusters(Int_t i) const { return i<0 || i>=kNclusters ? NULL: fClusters[i];}
- Bool_t GetEstimatedCrossPoint(Float_t &x, Float_t &z) const;
Int_t GetIndexes(Int_t i) const{ return i<0 || i>=kNclusters ? -1 : fIndexes[i];}
Int_t GetLabels(Int_t i) const { return fLabels[i];}
+ Float_t GetLocalZ() const { return fZfit[0] - fZfit[1] * fX;}
+ Float_t GetLocalY() const { return fYfit[0] - fYfit[1] * fX;}
Float_t GetMomentum(Float_t *err = NULL) const;
Int_t GetN() const { return (Int_t)fN&kMask;}
Int_t GetN2() const { return GetN();}
Int_t GetNUsed() const { return Int_t((fN>>kNbits)&kMask);}
Int_t GetNShared() const { return Int_t(((fN>>kNbits)>>kNbits)&kMask);}
- Float_t GetOccupancyTB() const;
+ Int_t GetTBoccupancy() const;
+ Int_t GetTBcross() const;
Float_t GetQuality(Bool_t kZcorr) const;
Float_t GetPadLength() const { return fPad[0];}
Float_t GetPadWidth() const { return fPad[1];}
Float_t* GetProbability(Bool_t force=kFALSE);
Float_t GetPt() const { return fPt; }
inline Double_t GetPID(Int_t is=-1) const;
- Float_t GetS2Y() const { return fS2Y;}
+ Float_t GetS2Y() const { return fCov[0];}
Float_t GetS2Z() const { return fS2Z;}
+ Double_t GetS2DYDX(Float_t) const { return fCov[2];}
+ inline Double_t GetS2DZDX(Float_t) const;
+ inline Double_t GetS2XcrossDZDX(Double_t absdzdx) const;
Float_t GetSigmaY() const { return fS2Y > 0. ? TMath::Sqrt(fS2Y) : 0.2;}
Float_t GetSnp() const { return fYref[1]/TMath::Sqrt(1+fYref[1]*fYref[1]);}
Float_t GetTgl() const { return fZref[1]/TMath::Sqrt(1+fYref[1]*fYref[1]);}
UShort_t GetVolumeId() const;
Float_t GetX0() const { return fX0;}
Float_t GetX() const { return fX0 - fX;}
- Float_t GetY() const { return fYfit[0] - fYfit[1] * fX;}
- Double_t GetYat(Double_t x) const { return fYfit[0] - fYfit[1] * (fX0-x);}
+ Float_t GetXcross() const { return fS2Y;}
+ Float_t GetY() const { return TMath::Abs(fY)<1.e-15?GetLocalY():fY;/*fYfit[0] - fYfit[1] * fX;*/}
+ Double_t GetYat(Double_t x) const { return fY/*fit[0]*/ - fYfit[1] * (fX0-x);}
Float_t GetYfit(Int_t id) const { return fYfit[id];}
Float_t GetYref(Int_t id) const { return fYref[id];}
- Float_t GetZ() const { return fZfit[0] - fZfit[1] * fX;}
- Double_t GetZat(Double_t x) const { return fZfit[0] - fZfit[1] * (fX0-x);}
+ Float_t GetYref() const { return fYref[0] - fYref[1] *fX;}
+ Float_t GetZ() const { return TMath::Abs(fZ)<1.e-15?GetLocalZ():fZ;/*fZfit[0] - fZfit[1] * fX;*/}
+ Double_t GetZat(Double_t x) const { return fZ/*fit[0]*/ - fZfit[1] * (fX0-x);}
Float_t GetZfit(Int_t id) const { return fZfit[id];}
Float_t GetZref(Int_t id) const { return fZref[id];}
+ Float_t GetZref() const { return fZref[0] - fZref[1] *fX;}
Int_t GetYbin() const { return Int_t(GetY()/0.016);}
Int_t GetZbin() const { return Int_t(GetZ()/fPad[0]);}
void Reset(Option_t *opt="");
void SetC(Float_t c, Int_t typ=0) { fC[typ] = c;}
+ void SetChmbGood(Bool_t k = kTRUE){ SetBit(kChmbGood, k);}
void SetChi2(Float_t chi2) { fChi2 = chi2;}
inline void SetCovRef(const Double_t *cov);
void SetErrorMsg(ETRDtrackletError err) { SETBIT(fErrorMsg, err);}
void SetLabels(Int_t *lbls) { memcpy(fLabels, lbls, 3*sizeof(Int_t)); }
void SetKink(Bool_t k = kTRUE){ SetBit(kKink, k);}
void SetPrimary(Bool_t k = kTRUE){ SetBit(kPrimary, k);}
- void SetPID(Bool_t k = kTRUE) { SetBit(kPID, k);}
void SetStandAlone(Bool_t st) { SetBit(kStandAlone, st); }
void SetPt(Double_t pt) { fPt = pt;}
void SetOwner();
void SetDX(Float_t inDX) { fdX = inDX;}
void SetReconstructor(const AliTRDReconstructor *rec) {fkReconstructor = rec;}
void SetX0(Float_t x0) { fX0 = x0; }
- void SetYref(Int_t i, Float_t y) { fYref[i] = y;}
- void SetZref(Int_t i, Float_t z) { fZref[i] = z;}
+ void SetXYZ(TGeoHMatrix *mDet);
+ void SetYref(Int_t i, Float_t y) { if(i==0||i==1) fYref[i] = y;}
+ void SetZref(Int_t i, Float_t z) { if(i==0||i==1) fZref[i] = z;}
// void SetUsabilityMap(Long_t um) { fUsable = um; }
void Update(const AliTRDtrackV1* trk);
void UpdateUsed();
void UseClusters();
protected:
- void Copy(TObject &ref) const;
+ void Copy(TObject &ref) const;
+ void UnbiasDZDX(Bool_t rc);
+ Double_t UnbiasY(Bool_t rc, Bool_t sgn, Int_t chg);
private:
inline void SetN(Int_t n);
Float_t fPad[4]; // local pad definition : length/width/tilt/anode wire offset
Float_t fYref[2]; // Reference y, dydx
Float_t fZref[2]; // Reference z, dz/dx
- Float_t fYfit[2]; // Fit y, dy/dx
- Float_t fZfit[2]; // Fit z
+ Float_t fYfit[2]; // Fit :: chamber local y, dy/dx
+ Float_t fZfit[2]; // Fit :: chamber local z, dz/dx
Float_t fPt; // Pt estimate @ tracklet [GeV/c]
Float_t fdX; // length of time bin
- Float_t fX0; // anode wire position
- Float_t fX; // radial position of the tracklet
- Float_t fY; // r-phi position of the tracklet
- Float_t fZ; // z position of the tracklet
- Float_t fS2Y; // estimated resolution in the r-phi direction
+ Float_t fX0; // anode wire position in TrackingCoordinates (alignment included)
+ Float_t fX; // local radial offset from anode wire where tracklet position is estimated
+ Float_t fY; // r-phi position of the tracklet in TrackingCoordinates (alignment included)
+ Float_t fZ; // z position of the tracklet in TrackingCoordinates (alignment included)
+ Float_t fS2Y; // estimated radial cross point (chmb. coord.) in case of RC tracklets
Float_t fS2Z; // estimated resolution in the z direction
Float_t fC[2]; // Curvature for standalone [0] rieman [1] vertex constrained
Float_t fChi2; // Global chi2
- Float_t fdEdx[kNslices]; // dE/dx measurements for tracklet
+ Float_t fdEdx[kNdEdxSlices]; // dE/dx measurements for tracklet
Float_t fProb[AliPID::kSPECIES]; // PID probabilities
Int_t fLabels[3]; // most frequent MC labels and total number of different labels
Double_t fRefCov[7]; // covariance matrix of the track in the yz plane + the rest of the diagonal elements
Double_t fCov[3]; // covariance matrix of the tracklet in the xy plane
- ClassDef(AliTRDseedV1, 11) // The offline TRD tracklet
+ ClassDef(AliTRDseedV1, 13) // The offline TRD tracklet
};
//____________________________________________________________
}
//____________________________________________________________
+Double_t AliTRDseedV1::GetS2XcrossDZDX(Double_t absdzdx) const
+{
+ // correct sigma(x_cross) for the width of the crossing area
+ if(absdzdx>0.05) return TMath::Exp(-1.58839-absdzdx*3.24116);
+ else return 0.957043-absdzdx*12.4597;
+}
+
+//____________________________________________________________
+Double_t AliTRDseedV1::GetS2DZDX(Float_t dzdx) const
+{
+// Double_t p0[] = {0.03925, 0.03178},
+// p1[] = {0.06316, 0.06669};
+ Double_t p0[] = {0.02835, 0.03925},
+ p1[] = {0.04746, 0.06316};
+
+ Double_t s2(p0[IsRowCross()]+p1[IsRowCross()]*dzdx*dzdx);
+ s2*=s2;
+ return s2;
+}
+
+ //____________________________________________________________
inline AliTRDcluster* AliTRDseedV1::NextCluster()
{
// Mimic the usage of STL iterators.
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff