#include <G4LinInterpolation.hh>
Inheritance 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 |
Definition at line 52 of file G4LinInterpolation.hh.
| G4LinInterpolation::G4LinInterpolation | ( | ) |
| G4LinInterpolation::~G4LinInterpolation | ( | ) |
| 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.
00090 { 00091 //Linear Interpolation is performed on loagarithmic data set 00092 //Equivalent to log-log interpolation on non-loagarithmic data set 00093 //G4cout << "G4LinInterpolation is performed - (4 arguments)" << G4endl; 00094 G4int nBins = data.size() - 1; 00095 G4double value = 0.; 00096 G4double log_x = std::log10(x); 00097 if (x < points[0]) 00098 { 00099 value = 0.; 00100 } 00101 else if (bin < nBins) 00102 { 00103 G4double log_e1 = log_points[bin]; 00104 G4double log_e2 = log_points[bin+1]; 00105 G4double log_d1 = log_data[bin]; 00106 G4double log_d2 = log_data[bin+1]; 00107 00108 // Values e1, e2, d1 and d2 are the log values of the corresponding 00109 // original energy and data values. Simple linear interpolation performed 00110 // on loagarithmic data should be equivalent to log-log interpolation 00111 value = log_d1 + (log_d2 - log_d1)*(log_x - log_e1)/(log_e2 - log_e1); 00112 00113 // Delogarithmize to obtain interpolated value 00114 value = std::pow(10.,value); 00115 } 00116 else 00117 { 00118 value = data[nBins]; 00119 } 00120 return value; 00121 }
| 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.
Referenced by G4EMDataSet::RandomSelect(), and G4DataSet::RandomSelect().
00058 { 00059 //G4cout << "G4LinInterpolation is performed (2 arguments)" << G4endl; 00060 G4int nBins = data.size() - 1; 00061 G4double value = 0.; 00062 if (x < points[0]) 00063 { 00064 value = 0.; 00065 } 00066 else if (bin < nBins) 00067 { 00068 G4double e1 = points[bin]; 00069 G4double e2 = points[bin+1]; 00070 G4double d1 = data[bin]; 00071 G4double d2 = data[bin+1]; 00072 value = d1 + (d2 - d1)*(x - e1)/(e2 - e1); 00073 } 00074 else 00075 { 00076 value = data[nBins]; 00077 } 00078 return value; 00079 }
| G4VDataSetAlgorithm * G4LinInterpolation::Clone | ( | ) | const [virtual] |
Implements G4VDataSetAlgorithm.
Definition at line 52 of file G4LinInterpolation.cc.
00053 { return new G4LinInterpolation; }
1.4.7