Gabriele Cosmo
80 lines
2.6 KiB
C++
80 lines
2.6 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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// P. Arce, June-2014 Conversion neutron_hp to particle_hp
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//
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#ifndef G4ParticleHPPolynomExpansion_h
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#define G4ParticleHPPolynomExpansion_h 1
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#include "G4ios.hh"
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#include "globals.hh"
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#include <CLHEP/Units/SystemOfUnits.h>
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#include <fstream>
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class G4ParticleHPPolynomExpansion
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{
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public:
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G4ParticleHPPolynomExpansion()
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{
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theCoeff = nullptr;
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nPoly = 0;
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}
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~G4ParticleHPPolynomExpansion() { delete[] theCoeff; }
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inline void Init(std::istream& theData)
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{
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theData >> nPoly;
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theCoeff = new G4double[nPoly];
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G4int i;
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for (i = 0; i < nPoly; i++) {
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theData >> theCoeff[i];
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}
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}
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inline G4double GetValue(G4double anEnergy) const
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{
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G4int i;
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G4double result = 0;
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G4double base = anEnergy / CLHEP::eV;
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G4double running = 1;
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for (i = 0; i < nPoly; i++) {
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result += theCoeff[i] * running;
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running *= base;
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}
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return result;
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}
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private:
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G4int nPoly;
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G4double* theCoeff;
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};
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#endif
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