// //
///////////////////////////////////////////////////////////////////
+#include "AliLog.h"
class AliStrLine : public TObject {
- public:
+public:
AliStrLine(); // default constructor
- AliStrLine(Double_t *point, Double_t *cd, Bool_t twopoints=kFALSE); // standard constructor
- AliStrLine(Float_t *pointf, Float_t *cdf, Bool_t twopoints=kFALSE);
+ AliStrLine(const Double_t *const point, const Double_t *const cd, Bool_t twopoints=kFALSE, UShort_t id1=65535, UShort_t id2=65535); // standard constructor
+ AliStrLine(const Double_t *const point, const Double_t *const sig2point, const Double_t *const cd, Bool_t twopoints=kFALSE, UShort_t id1=65535, UShort_t id2=65535);
+ AliStrLine(const Double_t *const point, const Double_t *const sig2point, const Double_t *const wmat, const Double_t *const cd, Bool_t twopoints=kFALSE, UShort_t id1=65535, UShort_t id2=65535);
+
+ AliStrLine(const AliStrLine& source);
+ AliStrLine& operator=(const AliStrLine& source);
virtual ~AliStrLine(); // destructor
+ virtual void Clear(Option_t*){if(fWMatrix)delete[] fWMatrix; fWMatrix = 0;}
void PrintStatus() const;
- void SetP0(Double_t *point) {for(Int_t i=0;i<3;i++)fP0[i]=point[i];}
- void SetCd(Double_t *cd) {for(Int_t i=0;i<3;i++)fCd[i]=cd[i];}
- void SetDebug(Int_t dbfl = 0){fDebug = dbfl; }
+ void SetP0(const Double_t *point) {for(Int_t i=0;i<3;i++)fP0[i]=point[i];}
+ void SetSigma2P0(const Double_t *sigsq) {for(Int_t i=0;i<3;i++)fSigma2P0[i]=sigsq[i];}
+ void SetWMatrix(const Double_t *wmat);
+ void SetCd(const Double_t *cd) {for(Int_t i=0;i<3;i++)fCd[i]=cd[i];}
+ void SetIdPoints(UShort_t id1, UShort_t id2){
+ fIdPoint[0]=id1;
+ fIdPoint[1]=id2;
+ }
+
void GetP0(Double_t *point) const {for(Int_t i=0;i<3;i++)point[i]=fP0[i];}
+ void GetSigma2P0(Double_t *sigsq) const {for(Int_t i=0;i<3;i++)sigsq[i]=fSigma2P0[i];}
+ void GetWMatrix(Double_t *wmat) const;
void GetCd(Double_t *cd) const {for(Int_t i=0;i<3;i++)cd[i]=fCd[i];}
void GetCurrentPoint(Double_t *point) const;
- Int_t IsParallelTo(AliStrLine *line) const;
- Int_t Crossrphi(AliStrLine *line);
+ UShort_t GetIdPoint(Int_t i) const {
+ if(i<2) return fIdPoint[i];
+ AliError("Wrong element: only 2 points are stored in AliStrLine");
+ return 65535;
+ }
+ Int_t IsParallelTo(const AliStrLine *line) const;
+ Int_t Crossrphi(const AliStrLine *line);
Int_t CrossPoints(AliStrLine *line, Double_t *point1, Double_t *point2);
Int_t Cross(AliStrLine *line, Double_t *point);
- Double_t GetDCA(AliStrLine *line) const;
- Double_t GetDistFromPoint(Double_t *point) const;
+ Double_t GetDCA(const AliStrLine *line) const;
+ Double_t GetDistFromPoint(const Double_t *point) const;
protected:
- void InitDirection(Double_t *point, Double_t *cd);
- void InitTwoPoints(Double_t *pA, Double_t *pB);
+ void InitDirection(const Double_t *const point, const Double_t *const cd);
+ void InitTwoPoints(const Double_t *const pA, const Double_t *const pB);
Double_t fP0[3]; // given point
- Double_t fCd[3]; // direction cosines
- Double_t fTpar; //! parameter
- Int_t fDebug; //! debug flag - verbose printing if >0
+ Double_t fSigma2P0[3]; // errors on coordinates of given point
+ Double_t *fWMatrix; //[6] weighting matrix
+ /* fWMatrix is a symmetric matrix internally stored as
+ 0 --> row = 0, col = 0
+ 1 --> 0,1
+ 2 --> 0,2
+ 3 --> 1,1
+ 4 --> 1,2
+ 5 --> 2,2
+ The external interface (constructor, getter and setter) is:
+ 0 --> row = 0, col = 0
+ 1 --> 0,1
+ 2 --> 0,2
+ 3 --> 1,0
+ 4 --> 1,1
+ 5 --> 1,2
+ 6 --> 2,0
+ 7 --> 2,1
+ 8 --> 2,2 */
+ Double_t fCd[3]; // direction cosines
+ Double_t fTpar; //! parameter
+ UShort_t fIdPoint[2]; // Identifiers of RecPoints defining the line
+
private:
- void SetPar(Double_t par){fTpar = par;}
+ void SetPar(const Double_t par){fTpar = par;}
- ClassDef(AliStrLine,1);
+ ClassDef(AliStrLine,5);
};
#endif