////////////////////////////////////////////////////////////////////////////
// //
-// The TRD offline tracklet //
+// \class AliTRDseedV1
+// \brief The TRD offline tracklet
+// \author Alexandru Bercuci
// //
////////////////////////////////////////////////////////////////////////////
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
};
,kKink = BIT(18) // kink prolongation tracklet
,kStandAlone = BIT(19) // tracklet build during stand alone track finding
};
+ enum ETRDtrackletError {
+ kAttachClFound = 1 // not enough clusters found
+ ,kAttachRowGap // found gap attached rows
+ ,kAttachRow // found 3 rows
+ ,kAttachMultipleCl // multiple clusters attached to time bin
+ ,kAttachClAttach // not enough clusters attached
+ ,kFitFailed // fit failed det=0
+ ,kFitOutside // ref radial position outside chamber - wrong covariance
+ };
AliTRDseedV1(Int_t det = -1);
~AliTRDseedV1();
void GetCovRef(Double_t *cov) const { memcpy(cov, &fRefCov, 7*sizeof(Double_t));}
static Double_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;}
const Float_t* GetdEdx() const { return &fdEdx[0];}
Float_t GetdQdl(Int_t ic, Float_t *dx=NULL) 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];}
- static TLinearFitter* GetFitterY();
- static TLinearFitter* GetFitterZ();
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 = NULL) const;
- Int_t GetN() const { return (Int_t)fN&0x1f;}
+ 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 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 SetChi2(Float_t chi2) { fChi2 = chi2;}
inline void SetCovRef(const Double_t *cov);
+ void SetErrorMsg(Int_t err) { 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);}
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);
+ inline void Swap(Double_t &d1, Double_t &d2);
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
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; // Linear Fitter for tracklet fit in xy-plane
- static TLinearFitter *fgFitterZ; // Linear Fitter for tracklet fit in xz-plane
- ClassDef(AliTRDseedV1, 7) // The offline TRD tracklet
+ ClassDef(AliTRDseedV1, 10) // The offline TRD tracklet
};
//____________________________________________________________
//____________________________________________________________
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)
+{
+// swap values of n1 with n2
+ Int_t tmp(n1);
+ n1=n2; n2=tmp;
+}
+
+//____________________________________________________________
+inline void AliTRDseedV1::Swap(Double_t &d1, Double_t &d2)
+{
+// swap values of d1 with d2
+ Double_t tmp(d1);
+ d1=d2; d2=tmp;
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff