4 //* This file is property of and copyright by the ALICE HLT Project *
5 //* ALICE Experiment at CERN, All rights reserved. *
6 //* See cxx source for full Copyright notice *
8 #ifndef ALIHLTTPCCAPARAM_H
9 #define ALIHLTTPCCAPARAM_H
14 * @class ALIHLTTPCCAParam
15 * parameters of the AliHLTTPCCATracker, including geometry information
16 * and some reconstructon constants.
18 * The class is under construction.
21 class AliHLTTPCCAParam
26 virtual ~AliHLTTPCCAParam(){;}
28 void Initialize( Int_t iSlice, Int_t nRows, Double_t rowX[],
29 Double_t alpha, Double_t dAlpha,
30 Double_t rMin, Double_t rMax, Double_t zMin, Double_t zMax,
31 Double_t padPitch, Double_t zSigma, Double_t bz );
34 void Slice2Global( Double_t x, Double_t y, Double_t z,
35 Double_t *X, Double_t *Y, Double_t *Z ) const;
36 void Global2Slice( Double_t x, Double_t y, Double_t z,
37 Double_t *X, Double_t *Y, Double_t *Z ) const;
38 Int_t &ISlice(){ return fISlice;}
39 Int_t &NRows(){ return fNRows;}
41 Double_t &RowX( Int_t iRow ){ return fRowX[iRow]; }
43 Double_t &Alpha(){ return fAlpha;}
44 Double_t &DAlpha(){ return fDAlpha;}
45 Double_t &CosAlpha(){ return fCosAlpha;}
46 Double_t &SinAlpha(){ return fSinAlpha;}
47 Double_t &AngleMin(){ return fAngleMin;}
48 Double_t &AngleMax(){ return fAngleMax;}
49 Double_t &RMin(){ return fRMin;}
50 Double_t &RMax(){ return fRMax;}
51 Double_t &ZMin(){ return fZMin;}
52 Double_t &ZMax(){ return fZMax;}
53 Double_t &ErrZ(){ return fErrZ;}
54 Double_t &ErrX(){ return fErrX;}
55 Double_t &ErrY(){ return fErrY;}
56 Double_t &Bz(){ return fBz;}
58 Double_t &TrackConnectionFactor(){ return fTrackConnectionFactor; }
59 Double_t &TrackChiCut() { return fTrackChiCut; }
60 Double_t &TrackChi2Cut(){ return fTrackChi2Cut; }
61 Int_t &MaxTrackMatchDRow(){ return fMaxTrackMatchDRow; }
62 Double_t &YErrorCorrection(){ return fYErrorCorrection; }
63 Double_t &ZErrorCorrection(){ return fZErrorCorrection; }
64 Double_t &CellConnectionAngleXY(){ return fCellConnectionAngleXY; }
65 Double_t &CellConnectionAngleXZ(){ return fCellConnectionAngleXZ; }
69 Int_t fISlice; // slice number
70 Int_t fNRows; // number of rows
72 Double_t fAlpha, fDAlpha; // slice angle and angular size
73 Double_t fCosAlpha, fSinAlpha;// sign and cosine of the slice angle
74 Double_t fAngleMin, fAngleMax; // minimal and maximal angle
75 Double_t fRMin, fRMax;// slice R range
76 Double_t fZMin, fZMax;// slice Z range
77 Double_t fErrX, fErrY, fErrZ;// default cluster errors
78 Double_t fPadPitch; // pad pitch
79 Double_t fBz; // magnetic field value (only constant field can be used)
81 Double_t fYErrorCorrection;// correction factor for Y error of input clusters
82 Double_t fZErrorCorrection;// correction factor for Z error of input clusters
84 Double_t fCellConnectionAngleXY; // max phi angle between connected cells
85 Double_t fCellConnectionAngleXZ; // max psi angle between connected cells
86 Int_t fMaxTrackMatchDRow;// maximal jump in TPC row for connecting track segments
87 Double_t fTrackConnectionFactor; // allowed distance in Chi^2/3.5 for neighbouring tracks
88 Double_t fTrackChiCut; // cut for track Sqrt(Chi2/NDF);
89 Double_t fTrackChi2Cut;// cut for track Chi^2/NDF
91 Double_t fRowX[200];// X-coordinate of rows
93 ClassDef(AliHLTTPCCAParam,1);