Geant4_10
G4LogLogInterpolator.cc
Go to the documentation of this file.
1 //
2 // ********************************************************************
3 // * License and Disclaimer *
4 // * *
5 // * The Geant4 software is copyright of the Copyright Holders of *
6 // * the Geant4 Collaboration. It is provided under the terms and *
7 // * conditions of the Geant4 Software License, included in the file *
8 // * LICENSE and available at http://cern.ch/geant4/license . These *
9 // * include a list of copyright holders. *
10 // * *
11 // * Neither the authors of this software system, nor their employing *
12 // * institutes,nor the agencies providing financial support for this *
13 // * work make any representation or warranty, express or implied, *
14 // * regarding this software system or assume any liability for its *
15 // * use. Please see the license in the file LICENSE and URL above *
16 // * for the full disclaimer and the limitation of liability. *
17 // * *
18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboration. *
20 // * By using, copying, modifying or distributing the software (or *
21 // * any work based on the software) you agree to acknowledge its *
22 // * use in resulting scientific publications, and indicate your *
23 // * acceptance of all terms of the Geant4 Software license. *
24 // ********************************************************************
25 //
26 //
27 // $Id: G4LogLogInterpolator.cc 70904 2013-06-07 10:34:25Z gcosmo $
28 //
29 // Author: Maria Grazia Pia (Maria.Grazia.Pia@cern.ch)
30 //
31 // History:
32 // -----------
33 // 31 Jul 2001 MGP Created
34 // 31 Jul 2008 MGP Revised and renamed to G4LogLogInterpolator
35 //
36 // -------------------------------------------------------------------
37 
38 #include "G4LogLogInterpolator.hh"
39 
40 // Constructor
41 
43 { }
44 
45 // Destructor
46 
48 { }
49 
51 { return new G4LogLogInterpolator; }
52 
53 
55  const G4DataVector& points,
56  const G4DataVector& data) const
57 {
58  G4int nBins = data.size() - 1;
59  // ---- MGP ---- To be verified; value = 0. is redundant here
60  G4double value = 0.;
61  if (x < points[0] || x == 0.)
62  {
63  value = 0;
64  }
65  else if (bin < nBins)
66  {
67  G4double e1 = points[bin];
68  G4double e2 = points[bin+1];
69  G4double d1 = data[bin];
70  G4double d2 = data[bin+1];
71 
72  if (d1 != 0. && d2 != 0.)
73  {
74  value = (std::log10(d1)*std::log10(e2/x) + std::log10(d2)*std::log10(x/e1)) / std::log10(e2/e1);
75  value = std::pow(10.,value);
76  }
77  else
78  {
79  value = 0.;
80  }
81  }
82  else
83  {
84  value = data[nBins];
85  }
86 
87  return value;
88 }
float bin[41]
Definition: plottest35.C:14
tuple x
Definition: test.py:50
int G4int
Definition: G4Types.hh:78
virtual G4IInterpolator * Clone() const
G4double Calculate(G4double point, G4int bin, const G4DataVector &energies, const G4DataVector &data) const
const XML_Char int const XML_Char * value
Definition: expat.h:331
double G4double
Definition: G4Types.hh:76
const XML_Char const XML_Char * data
Definition: expat.h:268