#ifndef ALITRACKFITTERRIEMAN_H
#define ALITRACKFITTERRIEMAN_H
#include "AliTrackFitter.h"
#include "AliRieman.h"
class TTreeSRedirector;
class AliRieman;
class AliTrackFitterRieman : public AliTrackFitter{
public:
AliTrackFitterRieman();
AliTrackFitterRieman(AliTrackPointArray *array, Bool_t owner = kTRUE);
AliTrackFitterRieman(const AliTrackFitterRieman &rieman);
AliTrackFitterRieman &operator =(const AliTrackFitterRieman& rieman);
virtual ~AliTrackFitterRieman();
Bool_t Fit(const TArrayI *volIds,const TArrayI *volIdsFit = 0x0,
AliGeomManager::ELayerID layerRangeMin = AliGeomManager::kFirstLayer,
AliGeomManager::ELayerID layerRangeMax = AliGeomManager::kLastLayer);
Bool_t GetPCA(const AliTrackPoint &p, AliTrackPoint &p2) const;
void SetMaxDelta(Float_t maxDelta) { fMaxDelta = maxDelta;}
Float_t GetMaxDelta() const { return fMaxDelta;}
void SetCorrection(Bool_t correction){ fBCorrection=correction;}
Bool_t GetCorrection() const {return fBCorrection ;}
void Reset();
void AddPoint(Float_t x, Float_t y, Float_t z, Float_t sy, Float_t sz);
Bool_t Update();
Double_t GetC() const {return fRieman->GetC();}
Double_t GetYat(Double_t x) const;
Double_t GetZat(Double_t x) const;
Double_t GetDYat(Double_t x) const {return fRieman->GetDYat(x);}
Double_t GetDZat(Double_t x) const {return fRieman->GetDZat(x);}
Double_t GetErrY2at(Double_t x) const;
Double_t GetErrZ2at(Double_t x) const;
Bool_t GetXYZat(Double_t r, Float_t *xyz) const {return fRieman->GetXYZat(r, fAlpha,xyz);}
AliRieman *GetRieman() const {return fRieman;}
Double_t GetAlpha() const { return fAlpha; }
void SetParam(Int_t i, Double_t par);
void SetMinPointRadius(Double_t radius) { fMinPointRadius = radius; }
void SetMaxPointRadius(Double_t radius) { fMaxPointRadius = radius; }
Double_t GetMinPointRadius() const { return fMinPointRadius; }
Double_t GetMaxPointRadius() const { return fMaxPointRadius; }
protected:
Bool_t fBCorrection;
Double_t fAlpha;
Int_t fNUsed;
Bool_t fConv;
Float_t fMaxDelta;
AliRieman *fRieman;
Double_t fCorrY[4];
Double_t fCorrZ[4];
Double_t fMinPointRadius;
Double_t fMaxPointRadius;
private:
Bool_t Begin(Int_t, Int_t) {Reset(); return kTRUE;}
Bool_t AddPoint(const AliTrackPoint *) {return kTRUE;}
TTreeSRedirector *fDebugStream;
ClassDef(AliTrackFitterRieman,3)
};
#endif
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