Geant4_10
G4RDLinLogInterpolation.cc
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25 //
26 //
27 //
28 // Author: Vladimir Ivanchenko (Vladimir.Ivantchenko@cern.ch)
29 //
30 // History:
31 // -----------
32 // 27 May 2002 VI Created
33 //
34 // -------------------------------------------------------------------
35 
37 
38 // Constructor
39 
41 { }
42 
43 
44 // Destructor
45 
47 { }
48 
49 
51  const G4DataVector& points,
52  const G4DataVector& data) const
53 {
54  G4int nBins = data.size() - 1;
55  G4double value = 0.;
56  if (x < points[0])
57  {
58  value = 0.;
59  }
60  else if (bin < nBins)
61  {
62  G4double e1 = points[bin];
63  G4double e2 = points[bin+1];
64  G4double d1 = std::log(data[bin]);
65  G4double d2 = std::log(data[bin+1]);
66  value = std::exp(d1 + (d2 - d1)*(x - e1)/ (e2 - e1));
67  }
68  else
69  {
70  value = data[nBins];
71  }
72  return value;
73 }
float bin[41]
Definition: plottest35.C:14
tuple x
Definition: test.py:50
int G4int
Definition: G4Types.hh:78
const XML_Char int const XML_Char * value
Definition: expat.h:331
double G4double
Definition: G4Types.hh:76
const XML_Char const XML_Char * data
Definition: expat.h:268
G4double Calculate(G4double point, G4int bin, const G4DataVector &energies, const G4DataVector &data) const