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df9db588 | 1 | #ifndef AliAODVertex_H |
2 | #define AliAODVertex_H | |
3 | /* Copyright(c) 1998-2007, ALICE Experiment at CERN, All rights reserved. * | |
4 | * See cxx source for full Copyright notice */ | |
5 | ||
6 | /* $Id$ */ | |
7 | ||
8 | //------------------------------------------------------------------------- | |
9 | // AOD vertex base class | |
10 | // Author: Markus Oldenburg, CERN | |
11 | //------------------------------------------------------------------------- | |
12 | ||
13 | #include <TNamed.h> | |
14 | #include <TRef.h> | |
15 | #include <TRefArray.h> | |
16 | #include <TMath.h> | |
17 | ||
5d62ce04 | 18 | #include "AliAODRedCov.h" |
19 | ||
df9db588 | 20 | class AliAODVertex : public TObject { |
21 | ||
22 | public : | |
23 | ||
24 | enum AODVtx_t {kUndef=-1, kPrimary, kKink, kV0, kCascade, kMulti}; | |
25 | ||
26 | AliAODVertex(); | |
27 | AliAODVertex(const Double_t *position, | |
28 | const Double_t *covMatrix=0x0, | |
29 | Double_t chi2 = -999., | |
30 | TObject *parent = 0x0, | |
31 | Char_t vtype=kUndef); | |
32 | AliAODVertex(const Float_t *position, | |
33 | const Float_t *covMatrix=0x0, | |
34 | Double_t chi2 = -999., | |
35 | TObject *parent = 0x0, | |
36 | Char_t vtype=kUndef); | |
37 | AliAODVertex(const Double_t *position, | |
38 | Double_t chi2, | |
39 | Char_t vtype=kUndef); | |
40 | AliAODVertex(const Float_t *position, | |
41 | Double_t chi2, | |
42 | Char_t vtype=kUndef); | |
43 | ||
44 | virtual ~AliAODVertex(); | |
45 | AliAODVertex(const AliAODVertex& vtx); | |
46 | AliAODVertex& operator=(const AliAODVertex& vtx); | |
47 | ||
48 | void SetX(Double_t x) { fPosition[0] = x; } | |
49 | void SetY(Double_t y) { fPosition[1] = y; } | |
50 | void SetZ(Double_t z) { fPosition[2] = z; } | |
51 | void SetPosition(Double_t x, Double_t y, Double_t z) { fPosition[0] = x; fPosition[1] = y; fPosition[2] = z; } | |
52 | template <class T> void SetPosition(T *pos) | |
53 | { fPosition[0] = pos[0]; fPosition[1] = pos[1]; fPosition[2] = pos[2]; } | |
54 | ||
55 | void SetChi2(Double_t chi2) { fChi2 = chi2; } | |
56 | ||
57 | void SetParent(TObject *parent) { fParent = parent; } | |
58 | ||
59 | Double_t GetX() const { return fPosition[0]; } | |
60 | Double_t GetY() const { return fPosition[1]; } | |
61 | Double_t GetZ() const { return fPosition[2]; } | |
9f7c531f | 62 | template <class T> void GetPosition(T *pos) const |
63 | {pos[0]=fPosition[0]; pos[1]=fPosition[1]; pos[2]=fPosition[2];} | |
df9db588 | 64 | |
65 | template <class T> void SetCovMatrix(const T *covMatrix) { | |
5d62ce04 | 66 | if(!fCovMatrix) fCovMatrix=new AliAODRedCov<3>(); |
df9db588 | 67 | fCovMatrix->SetCovMatrix(covMatrix);} |
68 | ||
69 | template <class T> Bool_t GetCovMatrix(T *covMatrix) const { | |
70 | if(!fCovMatrix) return kFALSE; | |
71 | fCovMatrix->GetCovMatrix(covMatrix); return kTRUE;} | |
72 | ||
73 | void RemoveCovMatrix() {delete fCovMatrix; fCovMatrix=NULL;} | |
74 | ||
75 | template <class T> void GetSigmaXYZ(T *sigma) const; | |
76 | ||
77 | Double_t GetChi2() const { return fChi2; } | |
9f7c531f | 78 | Double_t GetChi2perNDF() const |
79 | { return fChi2/(2.*fDaughters.GetEntriesFast()-3.); } | |
df9db588 | 80 | |
83000620 | 81 | Char_t GetType() const { return fType; } |
82 | void SetType(AODVtx_t vtype) { fType=vtype; } | |
df9db588 | 83 | |
84 | TObject* GetParent() const { return fParent.GetObject(); } | |
85 | Bool_t HasParent(TObject *parent) const { return (fParent.GetObject() == parent) ? kTRUE : kFALSE; } | |
86 | ||
87 | void AddDaughter(TObject *daughter) { fDaughters.Add(daughter);} | |
88 | void RemoveDaughter(TObject *daughter) { fDaughters.Remove(daughter); } | |
1a3f462b | 89 | TObject* GetDaughter(Int_t i) { return fDaughters.At(i); } |
df9db588 | 90 | Bool_t HasDaughter(TObject *daughter) const; |
5c2fdfa2 | 91 | Int_t GetNDaughters() const { return fDaughters.GetEntriesFast(); } |
df9db588 | 92 | |
93 | // covariance matrix elements after rotation by phi around z-axis | |
94 | // and, then, by theta around new y-axis | |
95 | Double_t RotatedCovMatrixXX(Double_t phi = 0., Double_t theta = 0.) const; | |
96 | Double_t RotatedCovMatrixXY(Double_t phi = 0., Double_t theta = 0.) const; | |
97 | Double_t RotatedCovMatrixYY(Double_t phi = 0.) const; | |
98 | Double_t RotatedCovMatrixXZ(Double_t phi = 0., Double_t theta = 0.) const; | |
99 | Double_t RotatedCovMatrixYZ(Double_t phi = 0., Double_t theta = 0.) const; | |
100 | Double_t RotatedCovMatrixZZ(Double_t phi = 0., Double_t theta = 0.) const; | |
101 | ||
102 | template <class T, class P> void PhiAndThetaToVertex(AliAODVertex *vtx, P &phi, T &theta) const; | |
103 | Double_t DistanceToVertex(AliAODVertex *vtx) const; | |
104 | Double_t ErrorDistanceToVertex(AliAODVertex *vtx) const; | |
105 | Double_t DistanceXYToVertex(AliAODVertex *vtx) const; | |
106 | Double_t ErrorDistanceXYToVertex(AliAODVertex *vtx) const; | |
107 | ||
108 | void PrintIndices() const; | |
109 | void Print(Option_t* option = "") const; | |
110 | ||
df9db588 | 111 | private : |
112 | ||
9f7c531f | 113 | Double32_t fPosition[3]; // vertex position |
114 | Double32_t fChi2; // chi2 of vertex fit | |
5d62ce04 | 115 | AliAODRedCov<3> *fCovMatrix; // vertex covariance matrix; values of and below the diagonal |
9f7c531f | 116 | TRef fParent; // reference to the parent particle |
117 | TRefArray fDaughters; // references to the daughter particles | |
118 | Char_t fType; // Vertex type | |
df9db588 | 119 | |
120 | ClassDef(AliAODVertex,1); | |
121 | }; | |
122 | ||
df9db588 | 123 | #endif |