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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 | |
bdd011d6 | 11 | // Inheritance from AliVVertex: A. Dainese |
df9db588 | 12 | //------------------------------------------------------------------------- |
13 | ||
df9db588 | 14 | #include <TRef.h> |
15 | #include <TRefArray.h> | |
16 | #include <TMath.h> | |
17 | ||
bdd011d6 | 18 | #include "AliVVertex.h" |
5d62ce04 | 19 | #include "AliAODRedCov.h" |
bca58dd7 | 20 | #include "AliLog.h" |
5d62ce04 | 21 | |
bdd011d6 | 22 | class AliAODVertex : public AliVVertex { |
df9db588 | 23 | |
24 | public : | |
25 | ||
26 | enum AODVtx_t {kUndef=-1, kPrimary, kKink, kV0, kCascade, kMulti}; | |
27 | ||
28 | AliAODVertex(); | |
29 | AliAODVertex(const Double_t *position, | |
30 | const Double_t *covMatrix=0x0, | |
0657f082 | 31 | Double_t chi2perNDF = -999., |
df9db588 | 32 | TObject *parent = 0x0, |
02153d58 | 33 | Short_t id=-1, |
bca58dd7 | 34 | Char_t vtype=kUndef, |
35 | Int_t nprong = 0); | |
02153d58 | 36 | AliAODVertex(const Float_t *position, |
37 | const Float_t *covMatrix=0x0, | |
38 | Double_t chi2perNDF = -999., | |
39 | TObject *parent = 0x0, | |
40 | Short_t id=-1, | |
bca58dd7 | 41 | Char_t vtype=kUndef, |
42 | Int_t nprong = 0); | |
df9db588 | 43 | AliAODVertex(const Double_t *position, |
0657f082 | 44 | Double_t chi2perNDF, |
bca58dd7 | 45 | Char_t vtype=kUndef, |
46 | Int_t nprong = 0); | |
df9db588 | 47 | AliAODVertex(const Float_t *position, |
0657f082 | 48 | Double_t chi2perNDF, |
bca58dd7 | 49 | Char_t vtype=kUndef, |
50 | Int_t nprong = 0); | |
df9db588 | 51 | |
52 | virtual ~AliAODVertex(); | |
53 | AliAODVertex(const AliAODVertex& vtx); | |
54 | AliAODVertex& operator=(const AliAODVertex& vtx); | |
55 | ||
56 | void SetX(Double_t x) { fPosition[0] = x; } | |
57 | void SetY(Double_t y) { fPosition[1] = y; } | |
58 | void SetZ(Double_t z) { fPosition[2] = z; } | |
59 | void SetPosition(Double_t x, Double_t y, Double_t z) { fPosition[0] = x; fPosition[1] = y; fPosition[2] = z; } | |
60 | template <class T> void SetPosition(T *pos) | |
61 | { fPosition[0] = pos[0]; fPosition[1] = pos[1]; fPosition[2] = pos[2]; } | |
62 | ||
0657f082 | 63 | void SetChi2perNDF(Double_t chi2perNDF) { fChi2perNDF = chi2perNDF; } |
df9db588 | 64 | |
65 | void SetParent(TObject *parent) { fParent = parent; } | |
66 | ||
0b0bfa4e | 67 | Double_t GetX() const { return fPosition[0]; } |
68 | Double_t GetY() const { return fPosition[1]; } | |
69 | Double_t GetZ() const { return fPosition[2]; } | |
bdd011d6 | 70 | void GetXYZ(Double_t position[3]) const |
71 | {position[0]=fPosition[0]; position[1]=fPosition[1]; position[2]=fPosition[2];} | |
9f7c531f | 72 | template <class T> void GetPosition(T *pos) const |
73 | {pos[0]=fPosition[0]; pos[1]=fPosition[1]; pos[2]=fPosition[2];} | |
df9db588 | 74 | |
75 | template <class T> void SetCovMatrix(const T *covMatrix) { | |
5d62ce04 | 76 | if(!fCovMatrix) fCovMatrix=new AliAODRedCov<3>(); |
df9db588 | 77 | fCovMatrix->SetCovMatrix(covMatrix);} |
78 | ||
79 | template <class T> Bool_t GetCovMatrix(T *covMatrix) const { | |
80 | if(!fCovMatrix) return kFALSE; | |
81 | fCovMatrix->GetCovMatrix(covMatrix); return kTRUE;} | |
82 | ||
bdd011d6 | 83 | void GetCovarianceMatrix(Double_t covmatrix[6]) const |
84 | {GetCovMatrix(covmatrix);} | |
df9db588 | 85 | void RemoveCovMatrix() {delete fCovMatrix; fCovMatrix=NULL;} |
86 | ||
87 | template <class T> void GetSigmaXYZ(T *sigma) const; | |
88 | ||
0b0bfa4e | 89 | Double_t GetChi2perNDF() const { return fChi2perNDF; } |
90 | Double_t GetChi2() const { return fChi2perNDF*(Double_t)GetNDF(); } | |
91 | Int_t GetNDF() const { return 2*GetNContributors()-3; } | |
df9db588 | 92 | |
02153d58 | 93 | Short_t GetID() const { return fID; } |
94 | void SetID(Short_t id) { fID=id; } | |
95 | ||
0b0bfa4e | 96 | Char_t GetType() const { return fType; } |
97 | void SetType(AODVtx_t vtype) { fType=vtype; } | |
df9db588 | 98 | |
99 | TObject* GetParent() const { return fParent.GetObject(); } | |
100 | Bool_t HasParent(TObject *parent) const { return (fParent.GetObject() == parent) ? kTRUE : kFALSE; } | |
101 | ||
cfa5b70c | 102 | void AddDaughter(TObject *daughter); |
df9db588 | 103 | void RemoveDaughter(TObject *daughter) { fDaughters.Remove(daughter); } |
1e0b17ae | 104 | void RemoveDaughters() { fDaughters.Clear(); if(fProngs) {delete [] fProngs; fProngs=0; MakeProngs(); fIprong=0;} } |
bca58dd7 | 105 | TObject* GetDaughter(Int_t i); |
df9db588 | 106 | Bool_t HasDaughter(TObject *daughter) const; |
bca58dd7 | 107 | Int_t GetNDaughters() const; |
0657f082 | 108 | Int_t GetNContributors() const; |
19d55689 | 109 | void SetNProngs(Int_t nprong) {fNprong = nprong;} |
df9db588 | 110 | // covariance matrix elements after rotation by phi around z-axis |
111 | // and, then, by theta around new y-axis | |
112 | Double_t RotatedCovMatrixXX(Double_t phi = 0., Double_t theta = 0.) const; | |
113 | Double_t RotatedCovMatrixXY(Double_t phi = 0., Double_t theta = 0.) const; | |
114 | Double_t RotatedCovMatrixYY(Double_t phi = 0.) const; | |
115 | Double_t RotatedCovMatrixXZ(Double_t phi = 0., Double_t theta = 0.) const; | |
116 | Double_t RotatedCovMatrixYZ(Double_t phi = 0., Double_t theta = 0.) const; | |
117 | Double_t RotatedCovMatrixZZ(Double_t phi = 0., Double_t theta = 0.) const; | |
118 | ||
119 | template <class T, class P> void PhiAndThetaToVertex(AliAODVertex *vtx, P &phi, T &theta) const; | |
120 | Double_t DistanceToVertex(AliAODVertex *vtx) const; | |
121 | Double_t ErrorDistanceToVertex(AliAODVertex *vtx) const; | |
122 | Double_t DistanceXYToVertex(AliAODVertex *vtx) const; | |
123 | Double_t ErrorDistanceXYToVertex(AliAODVertex *vtx) const; | |
19d55689 | 124 | |
df9db588 | 125 | void PrintIndices() const; |
126 | void Print(Option_t* option = "") const; | |
bca58dd7 | 127 | private: |
0cccccc3 | 128 | void MakeProngs() {if (fNprong > 0) {fProngs = new TRef[fNprong]; fIprong=0;}} |
bca58dd7 | 129 | |
130 | private: | |
df9db588 | 131 | |
9333290e | 132 | Double32_t fPosition[3]; // vertex position |
133 | Double32_t fChi2perNDF; // chi2/NDF of vertex fit | |
02153d58 | 134 | Short_t fID; // vertex ID; corresponds to the array index of the appropriate ESD container |
135 | Char_t fType; // vertex type | |
bca58dd7 | 136 | Int_t fNprong; // number of prongs |
137 | Int_t fIprong; //!index of prong | |
9333290e | 138 | AliAODRedCov<3> *fCovMatrix; // vertex covariance matrix; values of and below the diagonal |
139 | TRef fParent; // reference to the parent particle | |
140 | TRefArray fDaughters; // references to the daughter particles | |
bca58dd7 | 141 | TRef *fProngs; //[fNprong] alternative daughters for n-prong vertex |
142 | ||
143 | ClassDef(AliAODVertex, 5); | |
df9db588 | 144 | }; |
145 | ||
bca58dd7 | 146 | inline Int_t AliAODVertex::GetNDaughters() const |
147 | { | |
148 | if (!fProngs) { | |
149 | return fDaughters.GetEntriesFast(); | |
150 | } else { | |
151 | return fNprong; | |
152 | } | |
153 | } | |
154 | ||
155 | inline TObject* AliAODVertex::GetDaughter(Int_t i) | |
156 | { | |
157 | if (!fProngs) { | |
158 | return fDaughters.At(i); | |
159 | } else { | |
160 | if (i < fNprong) { | |
161 | return fProngs[i].GetObject(); | |
162 | } else { | |
163 | AliWarning("Daughter index out of range !\n"); | |
164 | return 0; | |
165 | } | |
166 | } | |
167 | } | |
168 | ||
df9db588 | 169 | #endif |