TRD/AliTRDtracklet.h

   1 #ifndef ALITRDTRACKLET_H
   2 #define ALITRDTRACKLET_H
   3
   4 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   5  * See cxx source for full Copyright notice                               */
   6
   7 #include <TObject.h>
   8
   9 class AliTRDtracklet : public TObject {
  10
  11   //friend class AliTRDtrack;
  12
  13  public:
  14
  15   AliTRDtracklet();
  16
  17   void       Set(Float_t x, Float_t y, Float_t z, Float_t alpha, Float_t error2)
  18                                                     { fX=x; fY=y; fZ=z; fAlpha=alpha; fSigma2= error2; }
  19   void       SetP0(Float_t p0)                      { fP0             = p0;     }
  20   void       SetP1(Float_t p1)                      { fP1             = p1;     }
  21   void       SetN(Int_t n)                          { fNFound         = n;      }
  22   void       SetNCross(Int_t nc)                    { fNCross         = nc;     }
  23   void       SetPlane(Int_t plane)                  { fPlane          = plane;  }
  24   void       SetSigma2(Float_t sigma2)              { fExpectedSigma2 = sigma2; }
  25   void       SetChi2(Float_t chi2)                  { fChi2           = chi2;   }
  26   void       SetTilt(Float_t tilt)                  { fTilt           = tilt;   }
  27   void       SetMaxPos(Short_t pos, Short_t pos4, Short_t pos5)
  28                                                     { fMaxPos = pos; fMaxPos4 = pos4; fMaxPos5 = pos5; }
  29
  30   Float_t    GetX() const                           { return fX;                }
  31   Float_t    GetY() const                           { return fY;                }
  32   Float_t    GetZ() const                           { return fZ;                }
  33   Float_t    GetAlpha() const                       { return fAlpha;            }
  34   Float_t    GetTrackletSigma2() const              { return fSigma2;           }
  35   Float_t    GetP0() const                          { return fP0;               }
  36   Float_t    GetP1() const                          { return fP1;               }
  37   Int_t      GetN() const                           { return fNFound;           }
  38   Int_t      GetNCross() const                      { return fNCross;           }
  39   Int_t      GetPlane() const                       { return fPlane;            }
  40   Float_t    GetClusterSigma2() const               { return fExpectedSigma2;   }
  41   Float_t    GetChi2() const                        { return fChi2;             }
  42   Float_t    GetTilt() const                        { return fTilt;             }
  43
  44  protected:
  45
  46   Float_t    fY;                  // y position
  47   Float_t    fZ;                  // z position
  48   Float_t    fX;                  // x position
  49   Float_t    fAlpha;              // rotation angle
  50   Float_t    fSigma2;             // expected error of tracklet position
  51   Float_t    fP0;                 // offset in y
  52   Float_t    fP1;                 // offset in tangent
  53   Int_t      fNFound;             // number of found clusters
  54   Int_t      fNCross;             // number of crosses
  55   Int_t      fPlane;              // plane number
  56   Float_t    fExpectedSigma2;     // expected sigma of residual distribution of clusters
  57   Float_t    fChi2;               // chi2 of the tracklet
  58   Float_t    fTilt;               // tilt factor
  59   Short_t    fMaxPos;             // time bin with max charge
  60   Short_t    fMaxPos4;            // time bin with max charge
  61   Short_t    fMaxPos5;            // time bin with max charge
  62
  63   ClassDef(AliTRDtracklet,2)      // The TRD tracklet in one ROC
  64
  65 };
  66
  67 #endif