Geant4  10.02.p01
G4LineSection.hh
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27 // $Id: G4LineSection.hh 85845 2014-11-05 15:43:58Z gcosmo $
28 //
29 //
30 // class G4LineSection
31 //
32 // Class description:
33 //
34 // A utility class that calculates the distance of a point from a
35 // line section.
36 
37 // History:
38 // - Created. J. Apostolakis.
39 // --------------------------------------------------------------------
40 
41 #ifndef G4LineSection_hh
42 #define G4LineSection_hh
43 
44 #include "G4Types.hh"
45 #include "G4ThreeVector.hh"
46 
48 {
49  public: // with description
50 
51  inline G4LineSection( const G4ThreeVector& PntA, const G4ThreeVector& PntB );
52 
53  G4double Dist( G4ThreeVector OtherPnt ) const;
54 
55  inline G4double GetABdistanceSq() const;
56 
57  inline static G4double Distline( const G4ThreeVector& OtherPnt,
58  const G4ThreeVector& LinePntA,
59  const G4ThreeVector& LinePntB );
60  private:
61 
65 };
66 
67 // Inline methods implementations
68 
69 inline
71  const G4ThreeVector& PntB )
72  : EndpointA(PntA), VecAtoB(PntB-PntA)
73 {
74  fABdistanceSq = VecAtoB.mag2();
75 }
76 
77 inline
79 {
80  return fABdistanceSq;
81 }
82 
83 inline
85  const G4ThreeVector& LinePntA,
86  const G4ThreeVector& LinePntB )
87 {
88  G4LineSection LineAB( LinePntA, LinePntB ); // Line from A to B
89  return LineAB.Dist( OtherPnt );
90 }
91 
92 #endif
G4double Dist(G4ThreeVector OtherPnt) const
CLHEP::Hep3Vector G4ThreeVector
static G4double Distline(const G4ThreeVector &OtherPnt, const G4ThreeVector &LinePntA, const G4ThreeVector &LinePntB)
G4double GetABdistanceSq() const
G4LineSection(const G4ThreeVector &PntA, const G4ThreeVector &PntB)
G4double fABdistanceSq
G4ThreeVector VecAtoB
double G4double
Definition: G4Types.hh:76
G4ThreeVector EndpointA