TRD/AliTRDseed.h

   1 #ifndef ALITRDSEED_H
   2 #define ALITRDSEED_H
   3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   4  * See cxx source for full Copyright notice                               */
   5
   6 /* $Id$ */
   7
   8 ////////////////////////////////////////////////////////////////////////////
   9 //                                                                        //
  10 //  The TRD track seed                                                    //
  11 //                                                                        //
  12 ////////////////////////////////////////////////////////////////////////////
  13
  14 #include "TObject.h"
  15
  16 class AliTRDcluster;
  17
  18 class AliTRDseed : public TObject {
  19 public:
  20         enum {
  21     knTimebins = 70 // maximum number of clusters/tracklet
  22     ,kNtb = 35       // maximum clusters/pad row
  23   };
  24
  25   AliTRDseed();
  26   AliTRDseed(const AliTRDseed &s);
  27   virtual ~AliTRDseed() {};
  28
  29   AliTRDseed      &operator=(const AliTRDseed &s);
  30
  31   static  Float_t  FitRiemanTilt(AliTRDseed *seed, Bool_t error);
  32           void     UseClusters();
  33           void     Update();
  34           void     CookLabels();
  35           void     UpdateUsed();
  36           void     Reset();
  37
  38           Bool_t   IsOK() const                             { return fN2 > 4;        }
  39           Bool_t   IsUsable(Int_t i) const                  { return fUsable[i];     }
  40
  41           Float_t  GetTilt() const                          { return fTilt;          }
  42           Float_t  GetPadLength() const                     { return fPadLength;     }
  43           Float_t  GetX0() const                            { return fX0;            }
  44           Float_t  GetY0() const                            { return fYfit[0];       }
  45           Float_t  GetZ0() const                            { return fZfit[0];       }
  46           Float_t  GetX(Int_t i) const                      { return fX[i];          }
  47           Float_t  GetY(Int_t i) const                      { return fY[i];          }
  48           Float_t  GetZ(Int_t i) const                      { return fZ[i];          }
  49           Int_t    GetIndexes(Int_t i) const                { return fIndexes[i];    }
  50   AliTRDcluster   *GetClusters(Int_t i) const               { return fClusters[i];   }
  51           Float_t  GetYref(Int_t i) const                   { return fYref[i];       }
  52           Float_t  GetZref(Int_t i) const                   { return fZref[i];       }
  53           Float_t  GetYfit(Int_t i) const                   { return fYfit[i];       }
  54           Float_t  GetYfitR(Int_t i) const                  { return fYfitR[i];      }
  55           Float_t  GetZfit(Int_t i) const                   { return fZfit[i];       }
  56           Float_t  GetZfitR(Int_t i) const                  { return fZfitR[i];      }
  57           Float_t  GetSigmaY() const                        { return fSigmaY;        }
  58           Float_t  GetSigmaY2() const                       { return fSigmaY2;       }
  59           Float_t  GetMeanz() const                         { return fMeanz;         }
  60           Float_t  GetZProb() const                         { return fZProb;         }
  61           Int_t    GetLabels(Int_t i) const                 { return fLabels[i];     }
  62                 Float_t  GetMPads() const                         { return fMPads;         }
  63                 Int_t    GetNbClusters() const                    { return fN;             }
  64           Int_t    GetN2() const                            { return fN2;            }
  65           Int_t    GetNChange() const                       { return fNChange;       }
  66           Int_t    GetNUsed() const                         { return fNUsed;         }
  67           Int_t    GetFreq() const                          { return fFreq;          }
  68           Float_t  GetC() const                             { return fC;             }
  69           Float_t  GetCC() const                            { return fCC;            }
  70           Float_t  GetChi2() const                          { return fChi2;          }
  71           Float_t  GetChi2Z() const                         { return fChi2Z;         }
  72
  73
  74           void     SetTilt(Float_t tilt)                    { fTilt        = tilt;   }
  75           void     SetPadLength(Float_t len)                { fPadLength   = len;    }
  76           void     SetX0(Float_t x0)                        { fX0          = x0;     }
  77           void     SetX(Int_t i, Float_t x)                 { fX[i]        = x;      }
  78           void     SetY(Int_t i, Float_t y)                 { fY[i]        = y;      }
  79           void     SetZ(Int_t i, Float_t z)                 { fZ[i]        = z;      }
  80           void     SetIndexes(Int_t i, Int_t idx)           { fIndexes[i]  = idx;    }
  81           void     SetClusters(Int_t i, AliTRDcluster * const c)   { fClusters[i] = c;      }
  82           void     SetUsable(Int_t i, Bool_t usable)        { fUsable[i]   = usable; }
  83           void     SetYref(Int_t i, Float_t yref)           { fYref[i]     = yref;   }
  84           void     SetZref(Int_t i, Float_t zref)           { fZref[i]     = zref;   }
  85           void     SetYfit(Int_t i, Float_t yfit)           { fYfit[i]     = yfit;   }
  86           void     SetYfitR(Int_t i, Float_t yfitr)         { fYfitR[i]    = yfitr;  }
  87           void     SetZfit(Int_t i, Float_t zfit)           { fZfit[i]     = zfit;   }
  88           void     SetZfitR(Int_t i, Float_t zfitr)         { fZfitR[i]    = zfitr;  }
  89           void     SetSigmaY(Float_t sigmay)                { fSigmaY      = sigmay; }
  90           void     SetSigmaY2(Float_t sigmay)               { fSigmaY2     = sigmay; }
  91           void     SetMeanz(Float_t meanz)                  { fMeanz       = meanz;  }
  92           void     SetZProb(Float_t zprob)                  { fZProb       = zprob;  }
  93           void     SetLabels(Int_t i, Int_t label)          { fLabels[i]   = label;  }
  94           void     SetMPads(Float_t mPads)                  { fMPads       = mPads;  }
  95           void     SetN(Int_t n)                            { fN           = n;      }
  96           void     SetNChange(Int_t n)                      { fNChange     = n;      }
  97           void     SetN2(Int_t n2)                          { fN2          = n2;     }
  98           void     SetNUsed(Int_t nused)                    { fNUsed       = nused;  }
  99           void     SetFreq(Int_t freq)                      { fFreq        = freq;   }
 100           void     SetC(Float_t c)                          { fC           = c;      }
 101           void     SetCC(Float_t cc)                        { fCC          = cc;     }
 102           void     SetChi2(Float_t chi2)                    { fChi2        = chi2;   }
 103           void     SetChi2Z(Float_t chi2z)                  { fChi2Z       = chi2z;  }
 104
 105  protected:
 106
 107           void     Copy(TObject &o) const;
 108
 109           Float_t        fTilt;                 //  Tilting angle
 110           Float_t        fPadLength;            //  Pad length
 111           Float_t        fX0;                   //  X0 position
 112           Float_t        fX[knTimebins];        //! X position
 113           Float_t        fY[knTimebins];        //! Y position
 114           Float_t        fZ[knTimebins];        //! Z position
 115           Int_t          fIndexes[knTimebins];  //! Indexes
 116           AliTRDcluster *fClusters[knTimebins]; // Clusters
 117           Bool_t         fUsable[knTimebins];   //  Indication  - usable cluster
 118           Float_t        fYref[2];              //  Reference y
 119           Float_t        fZref[2];              //  Reference z
 120           Float_t        fYfit[2];              //  Y fit position +derivation
 121           Float_t        fYfitR[2];             //  Y fit position +derivation
 122           Float_t        fZfit[2];              //  Z fit position
 123           Float_t        fZfitR[2];             //  Z fit position
 124           Float_t        fSigmaY;               //  "Robust" sigma in Y - constant fit
 125           Float_t        fSigmaY2;              //  "Robust" sigma in Y - line fit
 126           Float_t        fMeanz;                //  Mean vaue of z
 127           Float_t        fZProb;                //  Max probbable z
 128           Int_t          fLabels[2];            //  Labels
 129           Int_t          fN;                    //  Number of associated clusters
 130           Int_t          fN2;                   //  Number of not crossed
 131           Int_t          fNUsed;                //  Number of used clusters
 132           Int_t          fFreq;                 //  Frequency
 133           Int_t          fNChange;              //  Change z counter
 134           Float_t        fMPads;                //  Mean number of pads per cluster
 135
 136           Float_t        fC;                    //  Curvature
 137           Float_t        fCC;                   //  Curvature with constrain
 138           Float_t        fChi2;                 //  Global chi2
 139           Float_t        fChi2Z;                //  Global chi2
 140
 141   ClassDef(AliTRDseed,1)                        //  Seed for a local TRD track
 142
 143 };
 144
 145 #endif