| Geant4 Cross Reference |
1 // 1
2 // *******************************************
3 // * License and Disclaimer
4 // *
5 // * The Geant4 software is copyright of th
6 // * the Geant4 Collaboration. It is provided
7 // * conditions of the Geant4 Software License
8 // * LICENSE and available at http://cern.ch/
9 // * include a list of copyright holders.
10 // *
11 // * Neither the authors of this software syst
12 // * institutes,nor the agencies providing fin
13 // * work make any representation or warran
14 // * regarding this software system or assum
15 // * use. Please see the license in the file
16 // * for the full disclaimer and the limitatio
17 // *
18 // * This code implementation is the result
19 // * technical work of the GEANT4 collaboratio
20 // * By using, copying, modifying or distri
21 // * any work based on the software) you ag
22 // * use in resulting scientific publicati
23 // * acceptance of all terms of the Geant4 Sof
24 // *******************************************
25 //
26 //
27 //
28 // Author: Vladimir Ivanchenko (Vladimir.Ivan
29 //
30 // History:
31 // -----------
32 // 27 May 2002 VI Created
33 //
34 // -------------------------------------------
35
36 #include "G4LinLogInterpolation.hh"
37 #include "G4Exp.hh"
38
39 //....oooOO0OOooo........oooOO0OOooo........oo
40 // Constructor
41 G4LinLogInterpolation::G4LinLogInterpolation()
42 { }
43
44 //....oooOO0OOooo........oooOO0OOooo........oo
45 // Destructor
46 G4LinLogInterpolation::~G4LinLogInterpolation(
47 { }
48
49 //....oooOO0OOooo........oooOO0OOooo........oo
50 G4double G4LinLogInterpolation::Calculate(G4do
51 const G4DataVector& points,
52 const G4DataVector& data) const
53 {
54 //G4cout << "G4LinLogInterpolation is perfor
55 G4int nBins = G4int(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 = G4Exp(d1 + (d2 - d1)*(x - e1)/ (
68 }
69 else
70 {
71 value = data[nBins];
72 }
73 return value;
74 }
75
76 //....oooOO0OOooo........oooOO0OOooo........oo
77
78 G4double G4LinLogInterpolation::Calculate(G4do
79 const G4DataVector& points,
80 cons
81 cons
82 const G4DataVector& log_data) cons
83 {
84 //G4cout << "G4LinLogInterpolation is perfor
85 G4int nBins = G4int(data.size() - 1);
86 G4double value = 0.;
87 //G4double log_x = std::log10(x);
88 if (x < points[0])
89 {
90 value = 0.;
91 }
92 else if (bin < nBins)
93 {
94 G4double e1 = points[bin];
95 G4double e2 = points[bin+1];
96 G4double d1 = data[bin];
97 G4double d2 = data[bin+1];
98 //G4double log_e1 = log_points[bin];
99 //G4double log_e2 = log_points[bin+1];
100 G4double log_d1 = log_data[bin];
101 G4double log_d2 = log_data[bin+1];
102 if (d1 > 0.0 && d2 > 0.0)
103 {
104 // Values e1, e2, d1 and d2 are the log va
105 // original energy and data values.
106 // Simple linear interpolation performed
107 // on logarithmic data should be equivalen
108 //value = log_d1 + (log_d2 - log_d1)
109 value = G4Exp(log_d1 + (log_d2 - log
110 }
111 else
112 {
113 if (d1 == 0.0) log_d1 = -300;
114 if (d2 == 0.0) log_d2 = -300;
115 value = G4Exp(log_d1 + (log_d2 - log
116 }
117 }
118 else
119 {
120 value = data[nBins];
121 }
122 return value;
123 }
124