STEER/AliTrackFitter.h

   1 #ifndef ALITRACKFITTER_H
   2 #define ALITRACKFITTER_H
   3
   4 /*************************************************************************
   5  * AliTrackFitter: base class for the fast track fitters                 *
   6  *                                                                       *
   7  *                                                                       *
   8  *                                                                       *
   9  *************************************************************************/
  10
  11 #include "TObject.h"
  12
  13 #include "AliTrackPointArray.h"
  14 #include "AliAlignObj.h"
  15
  16 class TMatrixDSym;
  17
  18 class AliTrackFitter : public TObject {
  19
  20  public:
  21
  22   AliTrackFitter();
  23   AliTrackFitter(AliTrackPointArray *array, Bool_t owner = kTRUE);
  24   AliTrackFitter(const AliTrackFitter &fitter);
  25   AliTrackFitter& operator= (const AliTrackFitter& fitter);
  26   virtual ~AliTrackFitter();
  27
  28   virtual void   Reset();
  29   virtual void   SetTrackPointArray(AliTrackPointArray *array, Bool_t owner = kTRUE);
  30   virtual Bool_t Fit(UShort_t volId,
  31                      AliTrackPointArray *pVolId, AliTrackPointArray *pTrack,
  32                      AliAlignObj::ELayerID layerRangeMin = AliAlignObj::kFirstLayer,
  33                      AliAlignObj::ELayerID layerRangeMax = AliAlignObj::kLastLayer) = 0;
  34   virtual Bool_t GetPCA(const AliTrackPoint &pIn, AliTrackPoint &pOut) const = 0;
  35
  36   const Float_t* GetX() const {return fPoints->GetX();}
  37   const Float_t* GetY() const {return fPoints->GetY();}
  38   const Float_t* GetZ() const {return fPoints->GetZ();}
  39   const Double_t* GetParam() const {return &fParams[0];}
  40   const TMatrixDSym &  GetCovariance() const {return *fCov;}
  41
  42  protected:
  43
  44   Double_t      fParams[6];    // Track parameters
  45   TMatrixDSym   *fCov;         // Track cov matrix
  46   AliTrackPointArray *fPoints; // Pointer to the array with track space points
  47   Bool_t  fIsOwner;            // Is the object owner of the space points array
  48
  49  private:
  50
  51   ClassDef(AliTrackFitter,1) // Abstract class of fast track fitters
  52
  53 };
  54
  55 #endif