Geant4 Cross Reference

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Geant4/processes/electromagnetic/lowenergy/src/G4LinLogLogInterpolation.cc

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Diff markup

Differences between /processes/electromagnetic/lowenergy/src/G4LinLogLogInterpolation.cc (Version 11.3.0) and /processes/electromagnetic/lowenergy/src/G4LinLogLogInterpolation.cc (Version 4.0.p1)


  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 // Author:  Vladimir Ivanchenko (Vladimir.Ivan    
 28 //                                                
 29 // History:                                       
 30 // -----------                                    
 31 // 29 May 2002   VI        Created                
 32 //                                                
 33 // -------------------------------------------    
 34                                                   
 35 #include "G4LinLogLogInterpolation.hh"            
 36                                                   
 37 // Constructor                                    
 38                                                   
 39 G4LinLogLogInterpolation::G4LinLogLogInterpola    
 40 { }                                               
 41                                                   
 42 // Destructor                                     
 43                                                   
 44 G4LinLogLogInterpolation::~G4LinLogLogInterpol    
 45 { }                                               
 46                                                   
 47 G4VDataSetAlgorithm* G4LinLogLogInterpolation:    
 48 { return new G4LinLogLogInterpolation; }          
 49                                                   
 50                                                   
 51 G4double G4LinLogLogInterpolation::Calculate(G    
 52             const G4DataVector& points,           
 53             const G4DataVector& data) const       
 54 {                                                 
 55   //G4cout << "G4LinLogLogInterpolation is per    
 56   G4int nBins = G4int(data.size() - 1);           
 57   G4double value = 0.;                            
 58   if (x < points[0])                              
 59     {                                             
 60       value = 0.;                                 
 61     }                                             
 62   else if (bin < nBins)                           
 63     {                                             
 64       G4double e1 = points[bin];                  
 65       G4double e2 = points[bin+1];                
 66       G4double d1 = data[bin];                    
 67       G4double d2 = data[bin+1];                  
 68       if(d1 > 0.0 && d2 > 0.0) {                  
 69         value = (std::log10(d1)*std::log10(e2/    
 70         value = std::pow(10.,value);              
 71       } else {                                    
 72         value = (d1*std::log10(e2/x) + d2*std:    
 73       }                                           
 74     }                                             
 75   else                                            
 76     {                                             
 77       value = data[nBins];                        
 78     }                                             
 79                                                   
 80   return value;                                   
 81 }                                                 
 82                                                   
 83 G4double G4LinLogLogInterpolation::Calculate(G    
 84             const G4DataVector& points,           
 85                                           cons    
 86                                           cons    
 87             const G4DataVector& log_data) cons    
 88 {                                                 
 89   //G4cout << "G4LinLogLogInterpolation is per    
 90   G4int nBins = G4int(data.size() - 1);           
 91   G4double value = 0.;                            
 92   G4double log_x = std::log10(x);                 
 93   if (x < points[0])                              
 94     {                                             
 95       value = 0.;                                 
 96     }                                             
 97   else if (bin < nBins)                           
 98     {                                             
 99       G4double e1 = points[bin];                  
100       G4double e2 = points[bin+1];                
101       G4double d1 = data[bin];                    
102       G4double d2 = data[bin+1];                  
103       G4double log_e1 = log_points[bin];          
104       G4double log_e2 = log_points[bin+1];        
105       G4double log_d1 = log_data[bin];            
106       G4double log_d2 = log_data[bin+1];          
107       //G4cout << "x = " << x << " , log_x = "    
108       //G4cout << "e1 = " << e1 << " , d1 = "     
109       //G4cout << "e2 = " << e2 << " , d2 = "     
110       //G4cout << "log_e1 = " << log_e1 << " ,    
111       //G4cout << "log_e2 = " << log_e2 << " ,    
112       if (d1 > 0.0 && d2 > 0.0)                   
113        {                                          
114          // Values e1, e2, d1 and d2 are the l    
115          // original energy and data values. S    
116          // on loagarithmic data should be equ    
117          value = log_d1 + (log_d2 - log_d1)*(l    
118                                                   
119          //G4cout << "Case of normal log-log i    
120          //G4cout << "Temp log interpolated va    
121                                                   
122          // Delogarithmize to obtain interpola    
123          value = std::pow(10.,value);             
124                                                   
125          //G4cout << "Final Interpolated value    
126        }                                          
127      else                                         
128        {                                          
129         // Case of semi log-log interpolation     
130         //G4cout << "G4LinLogLogInterpolation     
131         if (e1 == 0.0) e1 = 1e-300;               
132         if (e2 == 0.0) e2 = 1e-300;               
133         value = d1 + (d2 - d1)*(log_x - log_e1    
134         //G4cout << "LinLogInterpolation: Fina    
135        }                                          
136     }                                             
137   else                                            
138     {                                             
139       value = data[nBins];                        
140     }                                             
141   return value;                                   
142 }                                                 
143