Geant4 9.6.0
Toolkit for the simulation of the passage of particles through matter
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G4LinLogInterpolation Class Reference

#include <G4LinLogInterpolation.hh>

+ Inheritance diagram for G4LinLogInterpolation:

Public Member Functions

 G4LinLogInterpolation ()
 
 ~G4LinLogInterpolation ()
 
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
 
- Public Member Functions inherited from G4VDataSetAlgorithm
 G4VDataSetAlgorithm ()
 
virtual ~G4VDataSetAlgorithm ()
 
virtual G4double Calculate (G4double point, G4int bin, const G4DataVector &energies, const G4DataVector &data) const =0
 
virtual G4double Calculate (G4double point, G4int bin, const G4DataVector &energies, const G4DataVector &data, const G4DataVector &log_energies, const G4DataVector &log_data) const =0
 
virtual G4VDataSetAlgorithmClone () const =0
 

Detailed Description

Definition at line 50 of file G4LinLogInterpolation.hh.

Constructor & Destructor Documentation

◆ G4LinLogInterpolation()

G4LinLogInterpolation::G4LinLogInterpolation ( )

Definition at line 40 of file G4LinLogInterpolation.cc.

41{ }

Referenced by Clone().

◆ ~G4LinLogInterpolation()

G4LinLogInterpolation::~G4LinLogInterpolation ( )

Definition at line 46 of file G4LinLogInterpolation.cc.

47{ }

Member Function Documentation

◆ Calculate() [1/2]

G4double G4LinLogInterpolation::Calculate ( G4double  point,
G4int  bin,
const G4DataVector energies,
const G4DataVector data 
) const
virtual

Implements G4VDataSetAlgorithm.

Definition at line 50 of file G4LinLogInterpolation.cc.

53{
54 //G4cout << "G4LinLogInterpolation is performed on dataset (2 arguments) " << G4endl;
55 G4int nBins = data.size() - 1;
56 G4double value = 0.;
57 if (x < points[0])
58 {
59 value = 0.;
60 }
61 else if (bin < nBins)
62 {
63 G4double e1 = points[bin];
64 G4double e2 = points[bin+1];
65 G4double d1 = std::log(data[bin]);
66 G4double d2 = std::log(data[bin+1]);
67 value = std::exp(d1 + (d2 - d1)*(x - e1)/ (e2 - e1));
68 }
69 else
70 {
71 value = data[nBins];
72 }
73 return value;
74}
double G4double
Definition: G4Types.hh:64
int G4int
Definition: G4Types.hh:66

◆ Calculate() [2/2]

G4double G4LinLogInterpolation::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 76 of file G4LinLogInterpolation.cc.

81{
82 //G4cout << "G4LinLogInterpolation is performed on dataset (4 arguments) " << G4endl;
83 G4int nBins = data.size() - 1;
84 G4double value = 0.;
85 //G4double log_x = std::log10(x);
86 if (x < points[0])
87 {
88 value = 0.;
89 }
90 else if (bin < nBins)
91 {
92 G4double e1 = points[bin];
93 G4double e2 = points[bin+1];
94 G4double d1 = data[bin];
95 G4double d2 = data[bin+1];
96 //G4double log_e1 = log_points[bin];
97 //G4double log_e2 = log_points[bin+1];
98 G4double log_d1 = log_data[bin];
99 G4double log_d2 = log_data[bin+1];
100 if (d1 > 0.0 && d2 > 0.0)
101 {
102// Values e1, e2, d1 and d2 are the log values of the corresponding
103// original energy and data values. Simple linear interpolation performed
104// on loagarithmic data should be equivalent to log-log interpolation
105 //value = log_d1 + (log_d2 - log_d1)*(log_x - log_e1)/(log_e2 - log_e1);
106 value = std::exp(log_d1 + (log_d2 - log_d1)*(x - e1)/(e2 - e1));
107 }
108 else
109 {
110 if (d1 == 0.0) log_d1 = -300;
111 if (d2 == 0.0) log_d2 = -300;
112 value = std::exp(log_d1 + (log_d2 - log_d1)*(x - e1)/(e2 - e1));
113 }
114 }
115 else
116 {
117 value = data[nBins];
118 }
119 return value;
120}

◆ Clone()

virtual G4VDataSetAlgorithm * G4LinLogInterpolation::Clone ( ) const
inlinevirtual

Implements G4VDataSetAlgorithm.

Definition at line 68 of file G4LinLogInterpolation.hh.


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