Geant4  10.03.p02
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G4RDLogLogInterpolation.cc
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26 //
27 // $Id$
28 // GEANT4 tag $Name: geant4-09-01-ref-00 $
29 //
30 // Author: Maria Grazia Pia (Maria.Grazia.Pia@cern.ch)
31 //
32 // History:
33 // -----------
34 // 31 Jul 2001 MGP Created
35 //
36 // -------------------------------------------------------------------
37 
39 
40 // Constructor
41 
43 { }
44 
45 // Destructor
46 
48 { }
49 
51 { return new G4RDLogLogInterpolation; }
52 
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 = (std::log10(d1)*std::log10(e2/x) + std::log10(d2)*std::log10(x/e1)) / std::log10(e2/e1);
71  value = std::pow(10.,value);
72  }
73  else
74  {
75  value = data[nBins];
76  }
77 
78  return value;
79 }
virtual G4RDVDataSetAlgorithm * Clone() const
tuple bin
Definition: plottest35.py:22
static const G4double d2
tuple x
Definition: test.py:50
int G4int
Definition: G4Types.hh:78
const XML_Char const XML_Char * data
Definition: expat.h:268
const XML_Char int const XML_Char * value
Definition: expat.h:331
static const G4double d1
G4double Calculate(G4double point, G4int bin, const G4DataVector &energies, const G4DataVector &data) const
double G4double
Definition: G4Types.hh:76