Geant4  10.01.p01
G4LinInterpolator.cc
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27 // $Id: G4LinInterpolator.cc 70904 2013-06-07 10:34:25Z gcosmo $
28 //
29 // Author: Maria Grazia Pia (Maria.Grazia.Pia@cern.ch)
30 //
31 // History:
32 // -----------
33 // 31 Jul 2001 MGP Created
34 // 31 Jul 2008 MGP Revised and renamed to G4LinInterpolator
35 //
36 // -------------------------------------------------------------------
37 
38 #include "G4LinInterpolator.hh"
39 
40 // Constructor
41 
43 { }
44 
45 // Destructor
46 
48 { }
49 
50 
52 { return new G4LinInterpolator; }
53 
55  const G4DataVector& points,
56  const G4DataVector& data) const
57 {
58  G4int nBins = data.size() - 1;
59  G4double value = 0.;
60  if (x < points[0])
61  {
62  value = 0.;
63  }
64  else if (bin < nBins)
65  {
66  G4double e1 = points[bin];
67  G4double e2 = points[bin+1];
68  G4double d1 = data[bin];
69  G4double d2 = data[bin+1];
70  value = d1 + (d2 - d1)*(x - e1)/(e2 - e1);
71  }
72  else
73  {
74  value = data[nBins];
75  }
76  return value;
77 }
static const G4double d1
static const G4double e2
int G4int
Definition: G4Types.hh:78
static const G4double e1
double G4double
Definition: G4Types.hh:76
static const G4double d2
G4IInterpolator * Clone() const
G4double Calculate(G4double point, G4int bin, const G4DataVector &energies, const G4DataVector &data) const