#include <G4LinInterpolation.hh>

Inheritance diagram for G4LinInterpolation:

Collaboration diagram for G4LinInterpolation:

Public Member Functions
	G4LinInterpolation ()

	~G4LinInterpolation ()

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

G4VDataSetAlgorithm *	Clone () const

Public Member Functions inherited from G4VDataSetAlgorithm
	G4VDataSetAlgorithm ()

virtual	~G4VDataSetAlgorithm ()

Detailed Description

Definition at line 52 of file G4LinInterpolation.hh.

Constructor & Destructor Documentation

◆ G4LinInterpolation()

G4LinInterpolation::G4LinInterpolation ( )

Definition at line 43 of file G4LinInterpolation.cc.

44 { }

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◆ ~G4LinInterpolation()

G4LinInterpolation::~G4LinInterpolation ( )

Definition at line 48 of file G4LinInterpolation.cc.

49 { }

Member Function Documentation

◆ Calculate() [1/2]

G4double G4LinInterpolation::Calculate	(	G4double	point,
		G4int	bin,
		const G4DataVector &	energies,
		const G4DataVector &	data
	)		const

virtual

Implements G4VDataSetAlgorithm.

Definition at line 55 of file G4LinInterpolation.cc.

 {
   //G4cout << "G4LinInterpolation is performed (2 arguments)" << G4endl;
   G4int nBins = data.size() - 1;
   G4double value = 0.;
   if (x < points[0])
     {
       value = 0.;
     }
   else if (bin < nBins)
     {
       G4double e1 = points[bin];
       G4double e2 = points[bin+1];
       G4double d1 = data[bin];
       G4double d2 = data[bin+1];
       value = d1 + (d2 - d1)*(x - e1)/(e2 - e1);
     }
   else
     {
       value = data[nBins];
     }
   return value;
 }

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◆ Calculate() [2/2]

G4double G4LinInterpolation::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 85 of file G4LinInterpolation.cc.

 {
 //Linear Interpolation is performed on loagarithmic data set
 //Equivalent to log-log interpolation on non-loagarithmic data set
   //G4cout << "G4LinInterpolation is performed - (4 arguments)" << G4endl;
   G4int nBins = data.size() - 1;
   G4double value = 0.;
   G4double log_x = std::log10(x);
   if (x < points[0])
     {
       value = 0.;
     }
   else if (bin < nBins)
     {
       G4double log_e1 = log_points[bin];
       G4double log_e2 = log_points[bin+1];
       G4double log_d1 = log_data[bin];
       G4double log_d2 = log_data[bin+1];
 
 // Values e1, e2, d1 and d2 are the log values of the corresponding
 // original energy and data values. Simple linear interpolation performed
 // on loagarithmic data should be equivalent to log-log interpolation
       value = log_d1 + (log_d2 - log_d1)*(log_x - log_e1)/(log_e2 - log_e1);
 
 // Delogarithmize to obtain interpolated value
       value = std::pow(10.,value);
    }
  else
    {
      value = data[nBins];
    }
   return value;
 }