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Geant4/processes/electromagnetic/lowenergy/src/G4LogLogInterpolation.cc

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Diff markup

Differences between /processes/electromagnetic/lowenergy/src/G4LogLogInterpolation.cc (Version 11.3.0) and /processes/electromagnetic/lowenergy/src/G4LogLogInterpolation.cc (Version 4.1.p1)


  1 //                                                  1 //
  2 // *******************************************      2 // ********************************************************************
  3 // * License and Disclaimer                    <<   3 // * DISCLAIMER                                                       *
  4 // *                                                4 // *                                                                  *
  5 // * The  Geant4 software  is  copyright of th <<   5 // * The following disclaimer summarizes all the specific disclaimers *
  6 // * the Geant4 Collaboration.  It is provided <<   6 // * of contributors to this software. The specific disclaimers,which *
  7 // * conditions of the Geant4 Software License <<   7 // * govern, are listed with their locations in:                      *
  8 // * LICENSE and available at  http://cern.ch/ <<   8 // *   http://cern.ch/geant4/license                                  *
  9 // * include a list of copyright holders.      << 
 10 // *                                                9 // *                                                                  *
 11 // * Neither the authors of this software syst     10 // * Neither the authors of this software system, nor their employing *
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 13 // * work  make  any representation or  warran     12 // * work  make  any representation or  warranty, express or implied, *
 14 // * regarding  this  software system or assum     13 // * regarding  this  software system or assume any liability for its *
 15 // * use.  Please see the license in the file  <<  14 // * use.                                                             *
 16 // * for the full disclaimer and the limitatio << 
 17 // *                                               15 // *                                                                  *
 18 // * This  code  implementation is the result  <<  16 // * This  code  implementation is the  intellectual property  of the *
 19 // * technical work of the GEANT4 collaboratio <<  17 // * GEANT4 collaboration.                                            *
 20 // * By using,  copying,  modifying or  distri <<  18 // * By copying,  distributing  or modifying the Program (or any work *
 21 // * any work based  on the software)  you  ag <<  19 // * based  on  the Program)  you indicate  your  acceptance of  this *
 22 // * use  in  resulting  scientific  publicati <<  20 // * statement, and all its terms.                                    *
 23 // * acceptance of all terms of the Geant4 Sof << 
 24 // *******************************************     21 // ********************************************************************
 25 //                                                 22 //
 26 //                                                 23 //
                                                   >>  24 // $Id: G4LogLogInterpolation.cc,v 1.4 2002/05/28 09:20:19 pia Exp $
                                                   >>  25 // GEANT4 tag $Name: geant4-04-01 $
 27 //                                                 26 //
 28 // Author: Maria Grazia Pia (Maria.Grazia.Pia@     27 // Author: Maria Grazia Pia (Maria.Grazia.Pia@cern.ch)
 29 //         Sebastian Incerti (incerti@cenbg.in <<  28 //
 30 //         Nicolas A. Karakatsanis (knicolas@m << 
 31 // History:                                        29 // History:
 32 // -----------                                     30 // -----------
 33 // 31 Jul 2001   MGP        Created                31 // 31 Jul 2001   MGP        Created
 34 // 27 Jun 2008   SI         Add check to avoid <<  32 //
 35 // 08 Dec 2008   NAK        Log-Log interpolat << 
 36 //                            self-test functi << 
 37 // 14 Jun 2008   NAK        New implementation << 
 38 //                           after directly lo << 
 39 //                           logarithmic value << 
 40 // -------------------------------------------     33 // -------------------------------------------------------------------
 41                                                    34 
 42 #include "G4LogLogInterpolation.hh"                35 #include "G4LogLogInterpolation.hh"
 43                                                    36 
 44 //....oooOO0OOooo........oooOO0OOooo........oo << 
 45 // Constructor                                     37 // Constructor
                                                   >>  38 
 46 G4LogLogInterpolation::G4LogLogInterpolation()     39 G4LogLogInterpolation::G4LogLogInterpolation()
 47 { }                                                40 { }
 48                                                    41 
 49 //....oooOO0OOooo........oooOO0OOooo........oo << 
 50 // Destructor                                      42 // Destructor
                                                   >>  43 
 51 G4LogLogInterpolation::~G4LogLogInterpolation(     44 G4LogLogInterpolation::~G4LogLogInterpolation()
 52 { }                                                45 { }
 53                                                    46 
 54 //....oooOO0OOooo........oooOO0OOooo........oo << 
 55 G4VDataSetAlgorithm* G4LogLogInterpolation::Cl     47 G4VDataSetAlgorithm* G4LogLogInterpolation::Clone() const 
 56 { return new G4LogLogInterpolation; }              48 { return new G4LogLogInterpolation; }
 57                                                    49 
 58 //....oooOO0OOooo........oooOO0OOooo........oo <<  50 
 59 G4double G4LogLogInterpolation::Calculate(G4do     51 G4double G4LogLogInterpolation::Calculate(G4double x, G4int bin, 
 60             const G4DataVector& points,            52             const G4DataVector& points, 
 61             const G4DataVector& data) const        53             const G4DataVector& data) const
 62 {                                                  54 {
 63   G4int nBins = G4int(data.size() - 1);        <<  55   G4int nBins = data.size() - 1;
 64   G4double value = 0.;                             56   G4double value = 0.;
 65   if (x < points[0])                               57   if (x < points[0])
 66     {                                              58     {
 67       value = 0.;                                  59       value = 0.;
 68     }                                              60     }
 69   else if (bin < nBins)                            61   else if (bin < nBins)
 70     {                                              62     {
 71       G4double e1 = points[bin];                   63       G4double e1 = points[bin];
 72       G4double e2 = points[bin+1];                 64       G4double e2 = points[bin+1];
 73       G4double d1 = data[bin];                     65       G4double d1 = data[bin];
 74       G4double d2 = data[bin+1];                   66       G4double d2 = data[bin+1];
 75       // Check of e1, e2, d1 and d2 values to  <<  67       value = (log10(d1)*log10(e2/x) + log10(d2)*log10(x/e1)) / log10(e2/e1);
 76       // interpolated value below              <<  68       value = pow(10,value);
 77       if ((d1 > 0.) && (d2 > 0.) && (e1 > 0.)  << 
 78         {                                      << 
 79                                                << 
 80     value = std::log10(d1)+(std::log10(d2/d1)/ << 
 81     value = std::pow(10.,value);               << 
 82         }                                      << 
 83       else value = 0.;                         << 
 84     }                                              69     }
 85   else                                             70   else
 86     {                                              71     {
 87       value = data[nBins];                         72       value = data[nBins];
 88     }                                              73     }
 89   return value;                                << 
 90 }                                              << 
 91                                                    74 
 92 //....oooOO0OOooo........oooOO0OOooo........oo << 
 93 // Nicolas A. Karakatsanis: New implementation << 
 94 //                          logarithmic values << 
 95 G4double G4LogLogInterpolation::Calculate(G4do << 
 96             const G4DataVector& points,        << 
 97                                           cons << 
 98                                           cons << 
 99             const G4DataVector& log_data) cons << 
100 {                                              << 
101   G4int nBins = G4int(data.size() - 1);        << 
102   G4double value = 0.;                         << 
103   G4double log_x = std::log10(x);              << 
104   if (x < points[0])                           << 
105     {                                          << 
106       value = 0.;                              << 
107     }                                          << 
108   else if (bin < nBins)                        << 
109     {                                          << 
110       G4double log_e1 = log_points[bin];       << 
111       G4double log_e2 = log_points[bin+1];     << 
112       G4double log_d1 = log_data[bin];         << 
113       G4double log_d2 = log_data[bin+1];       << 
114                                                << 
115       // Values e1, e2, d1 and d2 are the log  << 
116       // original energy and data values. Simp << 
117       // on loagarithmic data should be equiva << 
118       value = log_d1 + (log_d2 - log_d1)*(log_ << 
119                                                << 
120       // Delogarithmize to obtain interpolated << 
121       value = std::pow(10.,value);             << 
122    }                                           << 
123   else                                         << 
124     {                                          << 
125       value = data[nBins];                     << 
126     }                                          << 
127   return value;                                    75   return value;
128 }                                                  76 }
129                                                    77