G4SemiLogInterpolation Class Reference

#include <G4SemiLogInterpolation.hh>

Inheritance diagram for G4SemiLogInterpolation:

G4VDataSetAlgorithm

Public Member Functions

 G4SemiLogInterpolation ()
 ~G4SemiLogInterpolation ()
G4double Calculate (G4double point, G4int bin, const G4DataVector &energies, const G4DataVector &data) const
G4double Calculate (G4double point, G4int bin, const G4DataVector &energies, const G4DataVector &data, const G4DataVector &log_energies, const G4DataVector &log_data) const
virtual G4VDataSetAlgorithmClone () const

Detailed Description

Definition at line 53 of file G4SemiLogInterpolation.hh.


Constructor & Destructor Documentation

G4SemiLogInterpolation::G4SemiLogInterpolation (  ) 

Definition at line 41 of file G4SemiLogInterpolation.cc.

00042 { }

G4SemiLogInterpolation::~G4SemiLogInterpolation (  ) 

Definition at line 47 of file G4SemiLogInterpolation.cc.

00048 { }


Member Function Documentation

G4double G4SemiLogInterpolation::Calculate ( G4double  point,
G4int  bin,
const G4DataVector energies,
const G4DataVector data,
const G4DataVector log_energies,
const G4DataVector log_data 
) const [virtual]

Implements G4VDataSetAlgorithm.

Definition at line 80 of file G4SemiLogInterpolation.cc.

00085 {
00086 //A combination of logarithmic interpolation on energy set and 
00087 //linear Interpolation on data set
00088   //G4cout << "G4SemiLogInterpolation is performed (4 arguments)" << G4endl;
00089   G4int nBins = data.size() - 1;
00090   G4double value = 0.;
00091   G4double log_x = std::log10(x);
00092   if (x < points[0])
00093     {
00094       value = 0.;
00095     }
00096   else if (bin < nBins)
00097     {
00098       G4double e1 = points[bin];
00099       G4double e2 = points[bin+1];
00100       G4double d1 = data[bin];
00101       G4double d2 = data[bin+1];      
00102       G4double log_e1 = log_points[bin];
00103       G4double log_e2 = log_points[bin+1];
00104       //G4double log_d1 = log_data[bin];
00105       //G4double log_d2 = log_data[bin+1];
00106       //G4cout << "x = " << x << " , log_x = " << log_x << " , bin = " << bin << G4endl;
00107       //G4cout << "e1 = " << e1 << " , d1 = " << d1 << G4endl;
00108       //G4cout << "e2 = " << e2 << " , d2 = " << d2 << G4endl;
00109 // Values log_e1 and log_e2 are the log values of the corresponding
00110 // original energy actual values. Original d1 and d2 values are used.
00111 // Simple linear interpolation performed on loagarithmic data 
00112 // should be equivalent to semi log-log interpolation
00113       if (e1 == 0.0) log_e1 = -300;
00114       if (e2 == 0.0) log_e2 = -300;
00115       value = d1 + (d2 - d1)*(log_x - log_e1)/(log_e2 - log_e1);
00116       //G4cout << "G4SemiLogInterpolation - Final Interpolated Value: " << value << G4endl << G4endl;
00117    }
00118  else
00119    {
00120      value = data[nBins];
00121    }
00122   return value;
00123 }

G4double G4SemiLogInterpolation::Calculate ( G4double  point,
G4int  bin,
const G4DataVector energies,
const G4DataVector data 
) const [virtual]

Implements G4VDataSetAlgorithm.

Definition at line 54 of file G4SemiLogInterpolation.cc.

00057 {
00058   //G4cout << "G4SemiLogInterpolation is performed(2 arguments) " << G4endl;
00059   G4int nBins = data.size() - 1;
00060   G4double value = 0.;
00061   if (x < points[0])
00062     {
00063       value = 0.;
00064     }
00065   else if (bin < nBins)
00066     {
00067       G4double e1 = points[bin];
00068       G4double e2 = points[bin+1];
00069       G4double d1 = data[bin];
00070       G4double d2 = data[bin+1];
00071       value = (d1*std::log10(e2/x) + d2*std::log10(x/e1)) / std::log10(e2/e1);
00072     }
00073   else
00074     {
00075       value = data[nBins];
00076     }
00077   return value;
00078 }

G4VDataSetAlgorithm * G4SemiLogInterpolation::Clone (  )  const [virtual]

Implements G4VDataSetAlgorithm.

Definition at line 50 of file G4SemiLogInterpolation.cc.

00051 { return new G4SemiLogInterpolation; }


The documentation for this class was generated from the following files:
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