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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> | |
16 | #include <TMatrixDSym.h> | |
17 | ||
18 | class TGeoRotation; | |
19 | ||
20 | class AliTrackPoint : public TObject { | |
21 | ||
22 | public: | |
23 | AliTrackPoint(); | |
24 | AliTrackPoint(Float_t x, Float_t y, Float_t z, const Float_t *cov, UShort_t volid, Float_t charge = 0, Float_t drifttime = 0,Float_t chargeratio = 0); | |
25 | AliTrackPoint(const Float_t *xyz, const Float_t *cov, UShort_t volid, Float_t charge = 0, Float_t drifttime = 0,Float_t chargeratio = 0); | |
26 | AliTrackPoint(const AliTrackPoint &p); | |
27 | AliTrackPoint& operator= (const AliTrackPoint& p); | |
28 | virtual ~AliTrackPoint() {} | |
29 | ||
30 | // Multiplication with TGeoMatrix and distance between points (chi2) to be implemented | |
31 | ||
32 | void SetXYZ(Float_t x, Float_t y, Float_t z, const Float_t *cov = 0); | |
33 | void SetXYZ(const Float_t *xyz, const Float_t *cov = 0); | |
34 | void SetVolumeID(UShort_t volid) { fVolumeID = volid; } | |
35 | void SetCharge(Float_t charge) { fCharge = charge; } | |
36 | void SetDriftTime(Float_t time) { fDriftTime = time; } | |
37 | void SetChargeRatio(Float_t ratio) { fChargeRatio= ratio; } | |
38 | void SetExtra(Bool_t flag=kTRUE) { fIsExtra = flag; } | |
39 | ||
40 | Float_t GetX() const { return fX; } | |
41 | Float_t GetY() const { return fY; } | |
42 | Float_t GetZ() const { return fZ; } | |
43 | void GetXYZ(Float_t *xyz, Float_t *cov = 0) const; | |
44 | const Float_t *GetCov() const { return &fCov[0]; } | |
45 | UShort_t GetVolumeID() const { return fVolumeID; } | |
46 | Float_t GetCharge() const { return fCharge; } | |
47 | Float_t GetDriftTime() const { return fDriftTime;} | |
48 | Float_t GetChargeRatio() const { return fChargeRatio;} | |
49 | Bool_t IsExtra() const { return fIsExtra;} | |
50 | ||
51 | Float_t GetResidual(const AliTrackPoint &p, Bool_t weighted = kFALSE) const; | |
52 | Bool_t GetPCA(const AliTrackPoint &p, AliTrackPoint &out) const; | |
53 | ||
54 | Float_t GetAngle() const; | |
55 | Bool_t GetRotMatrix(TGeoRotation& rot) const; | |
56 | void SetAlignCovMatrix(const TMatrixDSym alignparmtrx); | |
57 | ||
58 | AliTrackPoint& Rotate(Float_t alpha) const; | |
59 | AliTrackPoint& MasterToLocal() const; | |
60 | ||
61 | void Print(Option_t *) const; | |
62 | ||
63 | private: | |
64 | ||
65 | Float_t fX; // X coordinate | |
66 | Float_t fY; // Y coordinate | |
67 | Float_t fZ; // Z coordinate | |
68 | Float_t fCharge; // Cluster charge in arbitrary units | |
69 | Float_t fDriftTime;// Drift time in SDD (in ns) | |
70 | Float_t fChargeRatio; // Charge ratio in SSD | |
71 | Float_t fCov[6]; // Cov matrix | |
72 | Bool_t fIsExtra; // attached by tracker but not used in fit | |
73 | UShort_t fVolumeID; // Volume ID | |
74 | ||
75 | ClassDef(AliTrackPoint,6) | |
76 | }; | |
77 | ||
78 | ////////////////////////////////////////////////////////////////////////////// | |
79 | // Class AliTrackPointArray // | |
80 | // This class contains the ESD track space-points which are used during // | |
81 | // the alignment procedures. Each space-point consist of 3 coordinates // | |
82 | // (and their errors) and the index of the sub-detector which contains // | |
83 | // the space-point. // | |
84 | // cvetan.cheshkov@cern.ch 3/11/2005 // | |
85 | ////////////////////////////////////////////////////////////////////////////// | |
86 | ||
87 | class AliTrackPointArray : public TObject { | |
88 | ||
89 | public: | |
90 | ||
91 | AliTrackPointArray(); | |
92 | AliTrackPointArray(Int_t npoints); | |
93 | AliTrackPointArray(const AliTrackPointArray &array); | |
94 | AliTrackPointArray& operator= (const AliTrackPointArray& array); | |
95 | virtual ~AliTrackPointArray(); | |
96 | ||
97 | // Bool_t AddPoint(Int_t i, AliCluster *cl, UShort_t volid); | |
98 | Bool_t AddPoint(Int_t i, const AliTrackPoint *p); | |
99 | ||
100 | Int_t GetNPoints() const { return fNPoints; } | |
101 | Int_t GetCovSize() const { return fSize; } | |
102 | Bool_t GetPoint(AliTrackPoint &p, Int_t i) const; | |
103 | // Getters for fast access to the coordinate arrays | |
104 | const Float_t* GetX() const { return &fX[0]; } | |
105 | const Float_t* GetY() const { return &fY[0]; } | |
106 | const Float_t* GetZ() const { return &fZ[0]; } | |
107 | const Float_t* GetCharge() const { return &fCharge[0]; } | |
108 | const Float_t* GetDriftTime() const { return &fDriftTime[0]; } | |
109 | const Float_t* GetChargeRatio() const { return &fChargeRatio[0]; } | |
110 | const Bool_t* GetExtra() const { return &fIsExtra[0]; } | |
111 | const Float_t* GetCov() const { return &fCov[0]; } | |
112 | const UShort_t* GetVolumeID() const { return &fVolumeID[0]; } | |
113 | ||
114 | Bool_t HasVolumeID(UShort_t volid) const; | |
115 | ||
116 | void Sort(Bool_t down=kTRUE); | |
117 | ||
118 | private: | |
119 | Bool_t fSorted; // Sorted flag | |
120 | ||
121 | Int_t fNPoints; // Number of space points | |
122 | Float_t *fX; //[fNPoints] Array with space point X coordinates | |
123 | Float_t *fY; //[fNPoints] Array with space point Y coordinates | |
124 | Float_t *fZ; //[fNPoints] Array with space point Z coordinates | |
125 | Float_t *fCharge; //[fNPoints] Array with clusters charge | |
126 | Float_t *fDriftTime; //[fNPoints] Array with drift times | |
127 | Float_t *fChargeRatio; //[fNPoints] Array with charge ratio | |
128 | Bool_t *fIsExtra; //[fNPoints] Array with extra flags | |
129 | Int_t fSize; // Size of array with cov matrices = 6*N of points | |
130 | Float_t *fCov; //[fSize] Array with space point coordinates cov matrix | |
131 | UShort_t *fVolumeID; //[fNPoints] Array of space point volume IDs | |
132 | ||
133 | ClassDef(AliTrackPointArray,6) | |
134 | }; | |
135 | ||
136 | #endif | |
137 |