Gabriele Cosmo
156 lines
5.1 KiB
C++
156 lines
5.1 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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// INCL++ intra-nuclear cascade model
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// Pekka Kaitaniemi, CEA and Helsinki Institute of Physics
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// Davide Mancusi, CEA
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// Alain Boudard, CEA
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// Sylvie Leray, CEA
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// Joseph Cugnon, University of Liege
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//
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// INCL++ revision: v5.1.8
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//
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#define INCLXX_IN_GEANT4_MODE 1
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#include "globals.hh"
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/** \file G4INCLInverseInterpolationTable.hh
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* \brief Simple interpolation table for the inverse of a IFunction1D functor
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*
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* \date 16 July 2012
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* \author Davide Mancusi
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*/
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#ifndef G4INCLINVERSEINTERPOLATIONTABLE_HH_
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#define G4INCLINVERSEINTERPOLATIONTABLE_HH_
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#include "G4INCLIFunction1D.hh"
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#include <algorithm>
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#include <functional>
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#include <sstream>
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namespace G4INCL {
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// Forward declaration
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class InverseInterpolationTable;
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/// \brief Interpolation node
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class InterpolationNode {
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public:
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InterpolationNode(const G4double x0, const G4double y0, const G4double yPrime0) :
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x(x0),
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y(y0),
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yPrime(yPrime0)
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{}
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virtual ~InterpolationNode() {}
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G4bool operator<(const InterpolationNode &rhs) const {
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return (x < rhs.x);
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}
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G4bool operator<=(const InterpolationNode &rhs) const {
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return (x <= rhs.x);
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}
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G4bool operator>(const InterpolationNode &rhs) const {
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return (x > rhs.x);
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}
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G4bool operator>=(const InterpolationNode &rhs) const {
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return (x >= rhs.x);
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}
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/// \brief Overloaded comparison operator for STL algorithms
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friend G4bool operator<(const InterpolationNode &lhs, const G4double rhs) {
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return lhs.x < rhs;
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}
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G4double getX() const { return x; }
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G4double getY() const { return y; }
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G4double getYPrime() const { return yPrime; }
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void setX(const G4double x0) { x=x0; }
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void setY(const G4double y0) { y=y0; }
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void setYPrime(const G4double yPrime0) { yPrime=yPrime0; }
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std::string print() const {
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std::stringstream message;
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message << "x, y, yPrime: " << x << '\t' << y << '\t' << yPrime << std::endl;
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return message.str();
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}
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protected:
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/// \brief abscissa
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G4double x;
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/// \brief function value
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G4double y;
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/// \brief function derivative
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G4double yPrime;
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};
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/// \brief Class for interpolating the inverse of a 1-dimensional function
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class InverseInterpolationTable : public IFunction1D {
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public:
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InverseInterpolationTable(IFunction1D const &f, const unsigned int nNodes=30);
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InverseInterpolationTable(std::vector<G4double> const &x, std::vector<G4double> const &y);
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virtual ~InverseInterpolationTable() {}
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unsigned int getNumberOfNodes() const { return nodes.size(); }
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std::vector<G4double> getNodeAbscissae() const {
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std::vector<G4double> x(nodes.size());
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std::transform(nodes.begin(), nodes.end(), x.begin(),
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std::mem_fun_ref(&InterpolationNode::getX));
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return x;
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}
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std::vector<G4double> getNodeValues() const {
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std::vector<G4double> y(nodes.size());
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std::transform(nodes.begin(), nodes.end(), y.begin(),
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std::mem_fun_ref(&InterpolationNode::getY));
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return y;
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}
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G4double operator()(const G4double x) const;
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std::string print() const;
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private:
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/// \brief Initialise the values of the node derivatives
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void initDerivatives();
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/// \brief Set the function domain
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void setFunctionDomain();
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/// \brief Interpolating nodes
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std::vector<InterpolationNode> nodes;
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};
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}
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#endif // G4INCLINVERSEINTERPOLATIONTABLE_HH_
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