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root/cvsroot/UserCode/MitAna/DataTree/interface/Vertex.h
Revision: 1.12
Committed: Fri Dec 11 13:55:46 2009 UTC (15 years, 4 months ago) by loizides
Content type: text/plain
Branch: MAIN
Changes since 1.11: +7 -6 lines
Log Message:
IsSortable.

File Contents

# User Rev Content
1 loizides 1.1 //--------------------------------------------------------------------------------------------------
2 loizides 1.12 // $Id: Vertex.h,v 1.11 2009/11/26 21:42:30 loizides Exp $
3 loizides 1.1 //
4     // Vertex
5     //
6 loizides 1.10 // Vertex class derived from BaseVertex holding additional fit information.
7 loizides 1.1 //
8     // Authors: J.Bendavid
9     //--------------------------------------------------------------------------------------------------
10    
11 loizides 1.5 #ifndef MITANA_DATATREE_VERTEX_H
12     #define MITANA_DATATREE_VERTEX_H
13 loizides 1.1
14 bendavid 1.4 #include <TMath.h>
15 bendavid 1.6 #include "MitAna/DataTree/interface/BaseVertex.h"
16 loizides 1.1
17     namespace mithep
18     {
19 bendavid 1.6 class Vertex : public BaseVertex
20 loizides 1.1 {
21     public:
22 loizides 1.9 Vertex() : fChi2(0), fNdof(0), fNTracks(0) {}
23 loizides 1.5 Vertex(Double_t x, Double_t y, Double_t z) :
24 loizides 1.7 BaseVertex(x,y,z), fChi2(0), fNdof(0), fNTracks(0) {}
25 bendavid 1.4 Vertex(Double_t x, Double_t y, Double_t z, Double_t xErr, Double_t yErr, Double_t zErr) :
26 loizides 1.9 BaseVertex(x,y,z,xErr,yErr,zErr), fChi2(0), fNdof(0), fNTracks(0) {}
27 loizides 1.8 Vertex(const ThreeVector &pos) :
28 loizides 1.7 BaseVertex(pos), fChi2(0), fNdof(0), fNTracks(0) {}
29 loizides 1.1
30 loizides 1.12 Double_t Chi2() const { return fChi2; }
31 loizides 1.11 Int_t Compare(const TObject *o) const;
32 loizides 1.12 Bool_t IsSortable() const { return kTRUE; }
33     UShort_t Ndof() const { return fNdof; }
34     UInt_t NTracks() const { return fNTracks; }
35     EObjType ObjType() const { return kVertex; }
36     Double_t Prob() const { return TMath::Prob(fChi2,fNdof); }
37 loizides 1.7 void SetChi2(Double_t chi2) { fChi2 = chi2; }
38 loizides 1.9 void SetNdof(UShort_t nDof) { fNdof = nDof; }
39     void SetNTracks(UShort_t ntrks) { fNTracks = ntrks; }
40 loizides 1.1
41     protected:
42 loizides 1.9 Double32_t fChi2; //[0,0,12]chi squared of conversion vertex fit
43     UShort_t fNdof; //number of degrees of freedom of conversion vertex fit
44     UShort_t fNTracks; //number of tracks used for the fit
45 loizides 1.1
46     ClassDef(Vertex, 1) // Vertex class
47     };
48     }
49 loizides 1.11
50     //--------------------------------------------------------------------------------------------------
51     inline Int_t mithep::Vertex::Compare(const TObject *o) const
52     {
53     // Default compare function for sorting according to transverse momentum.
54     // Returns -1 if this object is smaller than given object, 0 if objects are
55     // equal and 1 if this is larger than given object.
56    
57     const mithep::Vertex *v = dynamic_cast<const mithep::Vertex *>(o);
58     if (!v)
59     return 1;
60    
61     Int_t myn = NTracks();
62     Int_t n = v->NTracks();
63     if (myn>n)
64     return -1;
65     else if (n>myn)
66     return +1;
67    
68     Double_t myd = Chi2();
69     Double_t d = v->Chi2();
70     if (myd<d)
71     return -1;
72     else if (d<myd)
73     return +1;
74    
75     return 0;
76     }
77 loizides 1.1 #endif