////////////////////////////////////////////////////////////////////////////
// //
-// The TRD offline tracklet //
+// \class AliTRDseedV1
+// \brief The TRD offline tracklet
+// \author Alexandru Bercuci
// //
////////////////////////////////////////////////////////////////////////////
#include "AliPID.h"
#endif
-#ifndef ALIRIEMAN_H
-#include "AliRieman.h"
-#endif
#ifndef ALITRDCLUSTER_H
#include "AliTRDcluster.h"
#endif
-#include "AliTRDReconstructor.h"
class TTreeSRedirector;
class TLinearFitter;
class AliRieman;
+class AliTRDReconstructor;
class AliTRDtrackingChamber;
class AliTRDtrackV1;
class AliTRDpadPlane;
class AliTRDseedV1 : public AliTRDtrackletBase
{
+ friend class AliHLTTRDTracklet; // wrapper for HLT
+
public:
enum ETRDtrackletBuffers {
- kNtb = 31 // max clusters/pad row
+ kNbits = 6 // bits to store number of clusters
+ ,kMask = 0x3f // bit mask
+ ,kNtb = 31 // max clusters/pad row
,kNclusters = 2*kNtb // max number of clusters/tracklet
,kNslices = 10 // max dEdx slices
};
,kCalib = BIT(17) // calibrated tracklet
,kKink = BIT(18) // kink prolongation tracklet
,kStandAlone = BIT(19) // tracklet build during stand alone track finding
+ ,kPrimary = BIT(20) // tracklet from a primary track candidate
+ };
+
+ enum ETRDtrackletError { // up to 8 bits
+ kAttachClFound = 0 // not enough clusters found
+ ,kAttachRowGap = 1 // found gap attached rows
+ ,kAttachRow = 2 // found 3 rows
+ ,kAttachMultipleCl= 3// multiple clusters attached to time bin
+ ,kAttachClAttach= 4 // not enough clusters attached
+ ,kFitCl = 5 // not enough clusters for fit
+ ,kFitFailedY = 6 // fit failed in XY plane failed
+ ,kFitFailedZ = 7 // fit in the QZ plane failed
};
AliTRDseedV1(Int_t det = -1);
AliTRDseedV1(const AliTRDseedV1 &ref);
AliTRDseedV1& operator=(const AliTRDseedV1 &ref);
- Bool_t AttachClusters(AliTRDtrackingChamber *chamber, Bool_t tilt = kFALSE);
+ Bool_t AttachClusters(AliTRDtrackingChamber *const chamber, Bool_t tilt = kFALSE);
void Bootstrap(const AliTRDReconstructor *rec);
void Calibrate();
void CookdEdx(Int_t nslices);
void CookLabels();
Bool_t CookPID();
- Bool_t Fit(Bool_t tilt=kFALSE, Bool_t zcorr=kFALSE);
+ Bool_t Fit(UChar_t opt=0);
Bool_t Init(AliTRDtrackV1 *track);
- inline void Init(const AliRieman *fit);
+ void Init(const AliRieman *fit);
Bool_t IsEqual(const TObject *inTracklet) const;
Bool_t IsCalibrated() const { return TestBit(kCalib);}
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;}
Bool_t IsRowCross() const { return TestBit(kRowCross);}
Bool_t IsUsable(Int_t i) const { return fClusters[i] && !fClusters[i]->IsUsed();}
Bool_t IsStandAlone() const { return TestBit(kStandAlone);}
- Float_t GetC() const { return fC; }
+ 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 GetChi2() const { return fChi2; }
inline Float_t GetChi2Z() const;
inline Float_t GetChi2Y() const;
void GetCovAt(Double_t x, Double_t *cov) const;
void GetCovXY(Double_t *cov) const { memcpy(cov, &fCov[0], 3*sizeof(Double_t));}
void GetCovRef(Double_t *cov) const { memcpy(cov, &fRefCov, 7*sizeof(Double_t));}
- static Double_t GetCovSqrt(Double_t *c, Double_t *d);
- static Double_t GetCovInv(Double_t *c, Double_t *d);
+ static Int_t GetCovSqrt(const Double_t * const c, Double_t *d);
+ static Double_t GetCovInv(const Double_t * const c, Double_t *d);
+ UChar_t GetErrorMsg() const { return fErrorMsg;}
Float_t GetdX() const { return fdX;}
- Float_t* GetdEdx() { return &fdEdx[0];}
- Float_t GetdQdl(Int_t ic, Float_t *dx=0x0) const;
- Float_t GetdYdX() const { return fYfit[1]; }
- Float_t GetdZdX() const { return fZref[1]; }
+ const Float_t* GetdEdx() const { return &fdEdx[0];}
+ 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;}
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 ? 0x0 : fClusters[i];}
- static TLinearFitter* GetFitterY();
- static TLinearFitter* GetFitterZ();
+ 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 GetMomentum(Float_t *err = 0x0) const;
- Int_t GetN() const { return (Int_t)fN&0x1f;}
+ 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>>5)&0x1f);}
- Int_t GetNShared() const { return Int_t((fN>>10)&0x1f);}
+ 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;
Float_t GetQuality(Bool_t kZcorr) const;
Float_t GetPadLength() const { return fPad[0];}
Float_t GetPadWidth() const { return fPad[1];}
inline AliTRDcluster* PrevCluster();
void Print(Option_t *o = "") const;
inline void ResetClusterIter(Bool_t forward = kTRUE);
- void Reset();
+ void Reset(Option_t *opt="");
- void SetC(Float_t c) { fC = c;}
+ void SetC(Float_t c, Int_t typ=0) { fC[typ] = c;}
void SetChi2(Float_t chi2) { fChi2 = chi2;}
inline void SetCovRef(const Double_t *cov);
+ void SetErrorMsg(ETRDtrackletError err) { SETBIT(fErrorMsg, err);}
void SetIndexes(Int_t i, Int_t idx) { fIndexes[i] = idx; }
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 SetPadPlane(AliTRDpadPlane *p);
+ void SetPadPlane(AliTRDpadPlane * const p);
void SetPadLength(Float_t l) { fPad[0] = l;}
void SetPadWidth(Float_t w) { fPad[1] = w;}
void SetTilt(Float_t tilt) { fPad[2] = tilt; }
void SetDetector(Int_t d) { fDet = d; }
void SetDX(Float_t inDX) { fdX = inDX;}
- void SetReconstructor(const AliTRDReconstructor *rec) {fReconstructor = rec;}
+ 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;}
inline void SetN(Int_t n);
inline void SetNUsed(Int_t n);
inline void SetNShared(Int_t n);
+ inline void Swap(Int_t &n1, Int_t &n2) const;
+ inline void Swap(Double_t &d1, Double_t &d2) const;
- const AliTRDReconstructor *fReconstructor;//! local reconstructor
+ const AliTRDReconstructor *fkReconstructor;//! local reconstructor
AliTRDcluster **fClusterIter; //! clusters iterator
Int_t fIndexes[kNclusters]; //! Indexes
- Float_t fExB; //! tg(a_L) @ tracklet location
- Float_t fVD; //! drift velocity @ tracklet location
- Float_t fT0; //! time 0 @ tracklet location
- Float_t fS2PRF; //! sigma^2 PRF for xd->0 and phi=a_L
- Float_t fDiffL; //! longitudinal diffusion coefficient
- Float_t fDiffT; //! transversal diffusion coefficient
+ Float_t fExB; // tg(a_L) @ tracklet location
+ Float_t fVD; // drift velocity @ tracklet location
+ Float_t fT0; // time 0 @ tracklet location
+ Float_t fS2PRF; // sigma^2 PRF for xd->0 and phi=a_L
+ Float_t fDiffL; // longitudinal diffusion coefficient
+ Float_t fDiffT; // transversal diffusion coefficient
Char_t fClusterIdx; //! clusters iterator
- UShort_t fN; // number of clusters attached/used/shared
+ UChar_t fErrorMsg; // processing error
+ UInt_t fN; // number of clusters attached/used/shared
Short_t fDet; // TRD detector
AliTRDcluster *fClusters[kNclusters]; // Clusters
- Float_t fPad[3]; // local pad definition : length/width/tilt
+ 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 fZ; // z position of the tracklet
Float_t fS2Y; // estimated resolution in the r-phi direction
Float_t fS2Z; // estimated resolution in the z direction
- Float_t fC; // Curvature
+ 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 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
- static TLinearFitter *fgFitterY;
- static TLinearFitter *fgFitterZ;
- ClassDef(AliTRDseedV1, 7) // The offline TRD tracklet
+ ClassDef(AliTRDseedV1, 11) // The offline TRD tracklet
};
//____________________________________________________________
return 0.;
}
-//____________________________________________________________
-inline void AliTRDseedV1::Init(const AliRieman *rieman)
-{
- fZref[0] = rieman->GetZat(fX0);
- fZref[1] = rieman->GetDZat(fX0);
- fYref[0] = rieman->GetYat(fX0);
- fYref[1] = rieman->GetDYat(fX0);
- if(fReconstructor && fReconstructor->IsHLT()){
- fRefCov[0] = 1;
- fRefCov[2] = 10;
- }else{
- fRefCov[0] = rieman->GetErrY(fX0);
- fRefCov[2] = rieman->GetErrZ(fX0);
- }
- fC = rieman->GetC();
- fChi2 = rieman->GetChi2();
-}
-
//____________________________________________________________
inline AliTRDcluster* AliTRDseedV1::NextCluster()
{
}
return *fClusterIter;
}
- return 0x0;
+ return NULL;
}
//____________________________________________________________
}
return *fClusterIter;
}
- return 0x0;
+ return NULL;
}
//____________________________________________________________
//____________________________________________________________
inline void AliTRDseedV1::SetN(Int_t n)
{
- if(n<0 || n>= (1<<5)) return;
- fN &= ~0x1f;
- fN |= n;
+ if(n<0 || n>kNclusters) return;
+ fN &= ~kMask;
+ fN |= (n&kMask);
}
//____________________________________________________________
inline void AliTRDseedV1::SetNUsed(Int_t n)
{
- if(n<0 || n>= (1<<5)) return;
- fN &= ~(0x1f<<5);
- n <<= 5; fN |= n;
+ if(n<0 || n>kNclusters) return;
+ UInt_t mask(kMask<<kNbits);
+ fN &= ~mask;
+ n=n<<kNbits; fN |= (n&mask);
}
//____________________________________________________________
inline void AliTRDseedV1::SetNShared(Int_t n)
{
- if(n<0 || n>= (1<<5)) return;
- fN &= ~(0x1f<<10);
- n <<= 10; fN |= n;
+ if(n<0 || n>kNclusters) return;
+ UInt_t mask((kMask<<kNbits)<<kNbits);
+ fN &= ~mask;
+ n = (n<<kNbits)<<kNbits; fN|=(n&mask);
+}
+
+//____________________________________________________________
+inline void AliTRDseedV1::Swap(Int_t &n1, Int_t &n2) const
+{
+// swap values of n1 with n2
+ Int_t tmp(n1);
+ n1=n2; n2=tmp;
+}
+
+//____________________________________________________________
+inline void AliTRDseedV1::Swap(Double_t &d1, Double_t &d2) const
+{
+// swap values of d1 with d2
+ Double_t tmp(d1);
+ d1=d2; d2=tmp;
}