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Commit | Line | Data |
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edc97986 | 1 | #ifndef ALISTRLINE_H |
2 | #define ALISTRLINE_H | |
3 | /* Copyright(c) 1998-2003, ALICE Experiment at CERN, All rights reserved. * | |
4 | * See cxx source for full Copyright notice */ | |
5 | ||
6 | /////////////////////////////////////////////////////////////////// | |
7 | // // | |
8 | // A straight line is coded as a point (3 Double_t) and // | |
9 | // 3 direction cosines // | |
10 | // // | |
11 | /////////////////////////////////////////////////////////////////// | |
12 | ||
13 | ||
14 | class AliStrLine : public TObject { | |
15 | ||
16 | public: | |
17 | AliStrLine(); // default constructor | |
24a0c65f | 18 | AliStrLine(Double_t *point, Double_t *cd, Bool_t twopoints=kFALSE); // standard constructor |
2c9641ee | 19 | AliStrLine(Float_t *pointf, Float_t *cdf, Bool_t twopoints=kFALSE); |
edc97986 | 20 | virtual ~AliStrLine(); // destructor |
21 | void PrintStatus() const; | |
22 | void SetP0(Double_t *point) {for(Int_t i=0;i<3;i++)fP0[i]=point[i];} | |
23 | void SetCd(Double_t *cd) {for(Int_t i=0;i<3;i++)fCd[i]=cd[i];} | |
24 | void SetDebug(Int_t dbfl = 0){fDebug = dbfl; } | |
25 | void GetP0(Double_t *point) const {for(Int_t i=0;i<3;i++)point[i]=fP0[i];} | |
26 | void GetCd(Double_t *cd) const {for(Int_t i=0;i<3;i++)cd[i]=fCd[i];} | |
27 | void GetCurrentPoint(Double_t *point) const; | |
28 | Int_t IsParallelTo(AliStrLine *line) const; | |
29 | Int_t Crossrphi(AliStrLine *line); | |
30 | Int_t CrossPoints(AliStrLine *line, Double_t *point1, Double_t *point2); | |
31 | Int_t Cross(AliStrLine *line, Double_t *point); | |
2c9641ee | 32 | Double_t GetDCA(AliStrLine *line) const; |
33 | Double_t GetDistFromPoint(Double_t *point) const; | |
edc97986 | 34 | protected: |
24a0c65f | 35 | void InitDirection(Double_t *point, Double_t *cd); |
36 | void InitTwoPoints(Double_t *pA, Double_t *pB); | |
edc97986 | 37 | Double_t fP0[3]; // given point |
38 | Double_t fCd[3]; // direction cosines | |
39 | Double_t fTpar; //! parameter | |
40 | Int_t fDebug; //! debug flag - verbose printing if >0 | |
41 | private: | |
42 | void SetPar(Double_t par){fTpar = par;} | |
43 | ||
44 | ClassDef(AliStrLine,1); | |
45 | }; | |
46 | ||
47 | #endif |