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// |
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// Vertex |
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// |
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// Vertex class implemented as holding a 3d vector as a point in space with fit information. |
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// Vertex class derived from BaseVertex holding additional fit information. |
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// |
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// Authors: J.Bendavid |
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//-------------------------------------------------------------------------------------------------- |
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class Vertex : public BaseVertex |
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{ |
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public: |
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Vertex() : |
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fChi2(0.0), fNdof(0), fNTracks(0) {} |
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Vertex() : fChi2(0), fNdof(0), fNTracks(0) {} |
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Vertex(Double_t x, Double_t y, Double_t z) : |
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BaseVertex(x,y,z), fChi2(0), fNdof(0), fNTracks(0) {} |
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Vertex(Double_t x, Double_t y, Double_t z, Double_t xErr, Double_t yErr, Double_t zErr) : |
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BaseVertex(x,y,z,xErr,yErr,zErr), fChi2(0.0), fNdof(0), fNTracks(0) {} |
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Vertex(const ThreeVector &pos) : |
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BaseVertex(x,y,z,xErr,yErr,zErr), fChi2(0), fNdof(0), fNTracks(0) {} |
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Vertex(const ThreeVector &pos) : |
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BaseVertex(pos), fChi2(0), fNdof(0), fNTracks(0) {} |
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~Vertex() {} |
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|
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Double_t Chi2() const { return fChi2; } |
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UInt_t Ndof() const { return fNdof; } |
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UInt_t NTracks() const { return fNTracks; } |
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EObjType ObjType() const { return kVertex; } |
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Double_t Prob() const { return TMath::Prob(fChi2,fNdof); } |
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Double_t Chi2() const { return fChi2; } |
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Int_t Compare(const TObject *o) const; |
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Bool_t IsSortable() const { return kTRUE; } |
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UShort_t Ndof() const { return fNdof; } |
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UInt_t NTracks() const { return fNTracks; } |
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EObjType ObjType() const { return kVertex; } |
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Double_t Prob() const { return TMath::Prob(fChi2,fNdof); } |
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void SetChi2(Double_t chi2) { fChi2 = chi2; } |
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void SetNdof(UInt_t nDof) { fNdof = nDof; } |
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void SetNTracks(UInt_t ntrks) { fNTracks = ntrks; } |
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void SetNdof(UShort_t nDof) { fNdof = nDof; } |
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void SetNTracks(UShort_t ntrks) { fNTracks = ntrks; } |
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|
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protected: |
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Double32_t fChi2; //chi squared of conversion vertex fit |
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UInt_t fNdof; //number of degrees of freedom of conversion vertex fit |
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UInt_t fNTracks; //number of tracks used for the fit |
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Double32_t fChi2; //[0,0,12]chi squared of conversion vertex fit |
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UShort_t fNdof; //number of degrees of freedom of conversion vertex fit |
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UShort_t fNTracks; //number of tracks used for the fit |
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|
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ClassDef(Vertex, 1) // Vertex class |
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}; |
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} |
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//-------------------------------------------------------------------------------------------------- |
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inline Int_t mithep::Vertex::Compare(const TObject *o) const |
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{ |
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// Default compare function for sorting according to transverse momentum. |
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// Returns -1 if this object is smaller than given object, 0 if objects are |
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// equal and 1 if this is larger than given object. |
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|
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const mithep::Vertex *v = dynamic_cast<const mithep::Vertex *>(o); |
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if (!v) |
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return 1; |
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|
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Int_t myn = NTracks(); |
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Int_t n = v->NTracks(); |
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if (myn>n) |
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return -1; |
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else if (n>myn) |
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return +1; |
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|
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Double_t myd = Chi2(); |
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Double_t d = v->Chi2(); |
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if (myd<d) |
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return -1; |
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else if (d<myd) |
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return +1; |
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|
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return 0; |
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} |
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#endif |
