]>
Commit | Line | Data |
---|---|---|
46ae650f | 1 | #ifndef ALITRACKRESIDUALSFAST_H |
2 | #define ALITRACKRESIDUALSFAST_H | |
3 | ||
4 | //************************************************************************ | |
5 | // AliTrackResidualsFast: derived class (from AliTrackResiduals) which * | |
6 | // implements a simple linear minimization of the track residuals chi2. * | |
7 | // The minimization relies on the fact that the alignment parameters * | |
8 | // (angles and translations) are small. * | |
9 | // * | |
10 | // * | |
11 | //************************************************************************ | |
12 | ||
13 | #include "TMatrixDSym.h" | |
14 | #include "TMatrixD.h" | |
15 | ||
16 | #include "AliAlignObj.h" | |
17 | #include "AliTrackResiduals.h" | |
18 | ||
19 | class AliTrackResidualsFast : public AliTrackResiduals { | |
20 | ||
21 | public: | |
22 | AliTrackResidualsFast(); | |
23 | AliTrackResidualsFast(Int_t ntracks); | |
24 | AliTrackResidualsFast(const AliTrackResidualsFast &res); | |
25 | AliTrackResidualsFast& operator= (const AliTrackResidualsFast& res); | |
26 | virtual ~AliTrackResidualsFast() { } | |
27 | ||
28 | Bool_t Minimize(); | |
29 | ||
30 | protected: | |
31 | ||
32 | void AddPoints(AliTrackPoint &p, AliTrackPoint &pprime); | |
33 | Bool_t Update(); | |
34 | ||
cc345ce3 | 35 | Double_t fSum[27]; // Sums used during the chi2 minimization |
46ae650f | 36 | Double_t fSumR; // Sum of r squared |
37 | ||
38 | ClassDef(AliTrackResidualsFast,1) | |
39 | ||
40 | }; | |
41 | ||
42 | #endif |