| 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 | // Author: Vladimir Ivanchenko (Vladimir.Ivantchenko@cern.ch) |
|---|
| 28 | // |
|---|
| 29 | // History: |
|---|
| 30 | // ----------- |
|---|
| 31 | // 29 May 2002 VI Created |
|---|
| 32 | // |
|---|
| 33 | // ------------------------------------------------------------------- |
|---|
| 34 | |
|---|
| 35 | #include "G4LinLogLogInterpolation.hh" |
|---|
| 36 | |
|---|
| 37 | // Constructor |
|---|
| 38 | |
|---|
| 39 | G4LinLogLogInterpolation::G4LinLogLogInterpolation() |
|---|
| 40 | { } |
|---|
| 41 | |
|---|
| 42 | // Destructor |
|---|
| 43 | |
|---|
| 44 | G4LinLogLogInterpolation::~G4LinLogLogInterpolation() |
|---|
| 45 | { } |
|---|
| 46 | |
|---|
| 47 | G4VDataSetAlgorithm* G4LinLogLogInterpolation::Clone() const |
|---|
| 48 | { return new G4LinLogLogInterpolation; } |
|---|
| 49 | |
|---|
| 50 | |
|---|
| 51 | G4double G4LinLogLogInterpolation::Calculate(G4double x, G4int bin, |
|---|
| 52 | const G4DataVector& points, |
|---|
| 53 | const G4DataVector& data) const |
|---|
| 54 | { |
|---|
| 55 | G4int nBins = 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 = data[bin]; |
|---|
| 66 | G4double d2 = data[bin+1]; |
|---|
| 67 | if(d1 > 0.0 && d2 > 0.0) { |
|---|
| 68 | value = (std::log10(d1)*std::log10(e2/x) + std::log10(d2)*std::log10(x/e1)) / std::log10(e2/e1); |
|---|
| 69 | value = std::pow(10.,value); |
|---|
| 70 | } else { |
|---|
| 71 | value = (d1*std::log10(e2/x) + d2*std::log10(x/e1)) / std::log10(e2/e1); |
|---|
| 72 | } |
|---|
| 73 | } |
|---|
| 74 | else |
|---|
| 75 | { |
|---|
| 76 | value = data[nBins]; |
|---|
| 77 | } |
|---|
| 78 | |
|---|
| 79 | return value; |
|---|
| 80 | } |
|---|
