Line data Source code
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 : #include "Rtypes.h"
18 :
19 : class TGeoRotation;
20 :
21 : class AliTrackPoint : public TObject {
22 :
23 : public:
24 :
25 : AliTrackPoint();
26 : 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, Int_t clutype = 0);
27 : AliTrackPoint(const Float_t *xyz, const Float_t *cov, UShort_t volid, Float_t charge = 0, Float_t drifttime = 0,Float_t chargeratio = 0, Int_t clutype=0);
28 : AliTrackPoint(const AliTrackPoint &p);
29 : AliTrackPoint& operator= (const AliTrackPoint& p);
30 880 : virtual ~AliTrackPoint() {}
31 :
32 : // Multiplication with TGeoMatrix and distance between points (chi2) to be implemented
33 :
34 : void SetXYZ(Float_t x, Float_t y, Float_t z, const Float_t *cov = 0);
35 : void SetXYZ(const Float_t *xyz, const Float_t *cov = 0);
36 : void SetCov(const Float_t *cov);
37 17760 : void SetVolumeID(UShort_t volid) { fVolumeID = volid; }
38 606 : void SetCharge(Float_t charge) { fCharge = charge; }
39 606 : void SetDriftTime(Float_t time) { fDriftTime = time; }
40 606 : void SetChargeRatio(Float_t ratio) { fChargeRatio= ratio; }
41 606 : void SetClusterType(Int_t clutype) { fClusterType= clutype; }
42 34 : void SetExtra(Bool_t flag=kTRUE) { fIsExtra = flag; }
43 :
44 17696 : Float_t GetX() const { return fX; }
45 17696 : Float_t GetY() const { return fY; }
46 17696 : Float_t GetZ() const { return fZ; }
47 : void GetXYZ(Float_t *xyz, Float_t *cov = 0) const;
48 17744 : const Float_t *GetCov() const { return &fCov[0]; }
49 17688 : UShort_t GetVolumeID() const { return fVolumeID; }
50 17664 : Float_t GetCharge() const { return fCharge; }
51 17664 : Float_t GetDriftTime() const { return fDriftTime;}
52 17664 : Float_t GetChargeRatio() const { return fChargeRatio;}
53 17664 : Int_t GetClusterType() const { return fClusterType;}
54 17664 : Bool_t IsExtra() const { return fIsExtra;}
55 :
56 : Float_t GetResidual(const AliTrackPoint &p, Bool_t weighted = kFALSE) const;
57 : Bool_t GetPCA(const AliTrackPoint &p, AliTrackPoint &out) const;
58 :
59 : Float_t GetAngle() const;
60 : Bool_t GetRotMatrix(TGeoRotation& rot) const;
61 : void SetAlignCovMatrix(const TMatrixDSym& alignparmtrx);
62 :
63 : AliTrackPoint& Rotate(Float_t alpha) const;
64 : AliTrackPoint& MasterToLocal() const;
65 :
66 : void Print(Option_t *) const;
67 :
68 : private:
69 :
70 : Float_t fX; // X coordinate
71 : Float_t fY; // Y coordinate
72 : Float_t fZ; // Z coordinate
73 : Float_t fCharge; // Cluster charge in arbitrary units
74 : Float_t fDriftTime;// Drift time in SDD (in ns)
75 : Float_t fChargeRatio; // Charge ratio in SSD
76 : Int_t fClusterType; // Cluster Type (encoded info on size and shape)
77 : Float_t fCov[6]; // Cov matrix
78 : Bool_t fIsExtra; // attached by tracker but not used in fit
79 : UShort_t fVolumeID; // Volume ID
80 :
81 172 : ClassDef(AliTrackPoint,7)
82 : };
83 :
84 : //////////////////////////////////////////////////////////////////////////////
85 : // Class AliTrackPointArray //
86 : // This class contains the ESD track space-points which are used during //
87 : // the alignment procedures. Each space-point consist of 3 coordinates //
88 : // (and their errors) and the index of the sub-detector which contains //
89 : // the space-point. //
90 : // cvetan.cheshkov@cern.ch 3/11/2005 //
91 : //////////////////////////////////////////////////////////////////////////////
92 :
93 : class AliTrackPointArray : public TObject {
94 :
95 : public:
96 :
97 : enum {kTOFBugFixed=BIT(14)};
98 :
99 : AliTrackPointArray();
100 : AliTrackPointArray(Int_t npoints);
101 : AliTrackPointArray(const AliTrackPointArray &array);
102 : AliTrackPointArray& operator= (const AliTrackPointArray& array);
103 : virtual ~AliTrackPointArray();
104 :
105 : // Bool_t AddPoint(Int_t i, AliCluster *cl, UShort_t volid);
106 : Bool_t AddPoint(Int_t i, const AliTrackPoint *p);
107 :
108 0 : Int_t GetNPoints() const { return fNPoints; }
109 0 : Int_t GetCovSize() const { return fSize; }
110 : Bool_t GetPoint(AliTrackPoint &p, Int_t i) const;
111 : // Getters for fast access to the coordinate arrays
112 0 : const Float_t* GetX() const { return &fX[0]; }
113 0 : const Float_t* GetY() const { return &fY[0]; }
114 0 : const Float_t* GetZ() const { return &fZ[0]; }
115 0 : const Float_t* GetCharge() const { return &fCharge[0]; }
116 0 : const Float_t* GetDriftTime() const { return &fDriftTime[0]; }
117 0 : const Float_t* GetChargeRatio() const { return &fChargeRatio[0]; }
118 0 : const Int_t* GetClusterType() const { return &fClusterType[0]; }
119 0 : const Bool_t* GetExtra() const { return &fIsExtra[0]; }
120 0 : const Float_t* GetCov() const { return &fCov[0]; }
121 0 : const UShort_t* GetVolumeID() const { return &fVolumeID[0]; }
122 :
123 : Bool_t HasVolumeID(UShort_t volid) const;
124 : void Print(Option_t *) const;
125 :
126 : void Sort(Bool_t down=kTRUE);
127 :
128 : private:
129 : Bool_t fSorted; // Sorted flag
130 :
131 : Int_t fNPoints; // Number of space points
132 : Float_t *fX; //[fNPoints] Array with space point X coordinates
133 : Float_t *fY; //[fNPoints] Array with space point Y coordinates
134 : Float_t *fZ; //[fNPoints] Array with space point Z coordinates
135 : Float_t *fCharge; //[fNPoints] Array with clusters charge
136 : Float_t *fDriftTime; //[fNPoints] Array with drift times
137 : Float_t *fChargeRatio; //[fNPoints] Array with charge ratio
138 : Int_t *fClusterType; //[fNPoints] Array with cluster type
139 : Bool_t *fIsExtra; //[fNPoints] Array with extra flags
140 : Int_t fSize; // Size of array with cov matrices = 6*N of points
141 : Float_t *fCov; //[fSize] Array with space point coordinates cov matrix
142 : UShort_t *fVolumeID; //[fNPoints] Array of space point volume IDs
143 :
144 460 : ClassDef(AliTrackPointArray,7)
145 : };
146 :
147 : #endif
148 :
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