Gabriele Cosmo
78 lines
2.7 KiB
C++
78 lines
2.7 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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//
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//
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// Author: Maria Grazia Pia (Maria.Grazia.Pia@cern.ch)
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//
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// History:
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// -----------
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// 31 Jul 2001 MGP Created
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//
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// -------------------------------------------------------------------
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#include "G4RDLogLogInterpolation.hh"
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// Constructor
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G4RDLogLogInterpolation::G4RDLogLogInterpolation()
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{ }
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// Destructor
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G4RDLogLogInterpolation::~G4RDLogLogInterpolation()
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{ }
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G4RDVDataSetAlgorithm* G4RDLogLogInterpolation::Clone() const
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{ return new G4RDLogLogInterpolation; }
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G4double G4RDLogLogInterpolation::Calculate(G4double x, G4int bin,
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const G4DataVector& points,
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const G4DataVector& data) const
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{
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G4int nBins = data.size() - 1;
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G4double value = 0.;
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if (x < points[0])
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{
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value = 0.;
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}
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else if (bin < nBins)
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{
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G4double e1 = points[bin];
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G4double e2 = points[bin+1];
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G4double d1 = data[bin];
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G4double d2 = data[bin+1];
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value = (std::log10(d1)*std::log10(e2/x) + std::log10(d2)*std::log10(x/e1)) / std::log10(e2/e1);
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value = std::pow(10.,value);
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}
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else
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{
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value = data[nBins];
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}
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return value;
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}
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