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98937d93 | 1 | #ifndef ALITRACKPOINTARRAY_H |
2 | #define ALITRACKPOINTARRAY_H | |
3 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
4 | * See cxx source for full Copyright notice */ | |
5 | ||
6 | ////////////////////////////////////////////////////////////////////////////// | |
7 | // Class AliTrackPoint // | |
8 | // This class represent a single track space-point. // | |
9 | // It is used to access the points array defined in AliTrackPointArray. // | |
10 | // Note that the space point coordinates are given in the global frame. // | |
11 | // // | |
12 | // cvetan.cheshkov@cern.ch 3/11/2005 // | |
13 | ////////////////////////////////////////////////////////////////////////////// | |
14 | ||
15 | #include <TObject.h> | |
ec9e17f9 | 16 | #include <TMatrixDSym.h> |
98937d93 | 17 | |
18 | class AliTrackPoint : public TObject { | |
19 | ||
20 | public: | |
21 | AliTrackPoint(); | |
22 | AliTrackPoint(Float_t x, Float_t y, Float_t z, const Float_t *cov, UShort_t volid); | |
23 | AliTrackPoint(const Float_t *xyz, const Float_t *cov, UShort_t volid); | |
24 | AliTrackPoint(const AliTrackPoint &p); | |
25 | AliTrackPoint& operator= (const AliTrackPoint& p); | |
26 | virtual ~AliTrackPoint() {} | |
27 | ||
28 | // Multiplication with TGeoMatrix and distance between points (chi2) to be implemented | |
29 | ||
30 | void SetXYZ(Float_t x, Float_t y, Float_t z, const Float_t *cov = 0); | |
31 | void SetXYZ(const Float_t *xyz, const Float_t *cov = 0); | |
32 | void SetVolumeID(UShort_t volid) { fVolumeID = volid; } | |
33 | ||
34 | Float_t GetX() const { return fX; } | |
35 | Float_t GetY() const { return fY; } | |
36 | Float_t GetZ() const { return fZ; } | |
37 | void GetXYZ(Float_t *xyz, Float_t *cov = 0) const; | |
38 | const Float_t *GetCov() const { return &fCov[0]; } | |
39 | UShort_t GetVolumeID() const { return fVolumeID; } | |
40 | ||
46ae650f | 41 | Float_t GetResidual(const AliTrackPoint &p, Bool_t weighted = kFALSE) const; |
4dcdc747 | 42 | Bool_t GetPCA(const AliTrackPoint &p, AliTrackPoint &out) const; |
46ae650f | 43 | |
44 | Float_t GetAngle() const; | |
ec9e17f9 | 45 | void SetAlignCovMatrix(const TMatrixDSym alignparmtrx); |
46 | ||
46ae650f | 47 | AliTrackPoint& Rotate(Float_t alpha) const; |
48 | AliTrackPoint& MasterToLocal() const; | |
49 | ||
50 | void Print(Option_t *) const; | |
51 | ||
98937d93 | 52 | private: |
53 | ||
54 | Float_t fX; // X coordinate | |
55 | Float_t fY; // Y coordinate | |
56 | Float_t fZ; // Z coordinate | |
57 | Float_t fCov[6]; // Cov matrix | |
58 | UShort_t fVolumeID; // Volume ID | |
59 | ||
60 | ClassDef(AliTrackPoint,1) | |
61 | }; | |
62 | ||
63 | ////////////////////////////////////////////////////////////////////////////// | |
64 | // Class AliTrackPointArray // | |
65 | // This class contains the ESD track space-points which are used during // | |
66 | // the alignment procedures. Each space-point consist of 3 coordinates // | |
67 | // (and their errors) and the index of the sub-detector which contains // | |
68 | // the space-point. // | |
69 | // cvetan.cheshkov@cern.ch 3/11/2005 // | |
70 | ////////////////////////////////////////////////////////////////////////////// | |
71 | ||
72 | class AliTrackPointArray : public TObject { | |
73 | ||
74 | public: | |
75 | ||
76 | AliTrackPointArray(); | |
77 | AliTrackPointArray(Int_t npoints); | |
78 | AliTrackPointArray(const AliTrackPointArray &array); | |
79 | AliTrackPointArray& operator= (const AliTrackPointArray& array); | |
80 | virtual ~AliTrackPointArray(); | |
81 | ||
82 | // Bool_t AddPoint(Int_t i, AliCluster *cl, UShort_t volid); | |
83 | Bool_t AddPoint(Int_t i, const AliTrackPoint *p); | |
84 | ||
85 | Int_t GetNPoints() const { return fNPoints; } | |
86 | Int_t GetCovSize() const { return fSize; } | |
87 | Bool_t GetPoint(AliTrackPoint &p, Int_t i) const; | |
88 | // Getters for fast access to the coordinate arrays | |
89 | const Float_t* GetX() const { return &fX[0]; } | |
90 | const Float_t* GetY() const { return &fY[0]; } | |
91 | const Float_t* GetZ() const { return &fZ[0]; } | |
92 | const Float_t* GetCov() const { return &fCov[0]; } | |
93 | const UShort_t* GetVolumeID() const { return &fVolumeID[0]; } | |
94 | ||
95 | Bool_t HasVolumeID(UShort_t volid) const; | |
46ae650f | 96 | |
bead9796 | 97 | void Sort(Bool_t down=kTRUE); |
98 | ||
98937d93 | 99 | private: |
bead9796 | 100 | Bool_t fSorted; // Sorted flag |
98937d93 | 101 | |
102 | Int_t fNPoints; // Number of space points | |
103 | Float_t *fX; //[fNPoints] Array with space point X coordinates | |
104 | Float_t *fY; //[fNPoints] Array with space point Y coordinates | |
105 | Float_t *fZ; //[fNPoints] Array with space point Z coordinates | |
106 | Int_t fSize; // Size of array with cov matrices = 6*N of points | |
107 | Float_t *fCov; //[fSize] Array with space point coordinates cov matrix | |
108 | UShort_t *fVolumeID; //[fNPoints] Array of space point volume IDs | |
109 | ||
bead9796 | 110 | ClassDef(AliTrackPointArray,2) |
98937d93 | 111 | }; |
112 | ||
113 | #endif |