Added methods for finding a given module in the DDL map (F. Prino)
[u/mrichter/AliRoot.git] / STEER / AliTrackPointArray.h
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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
18class 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
72class 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