Gabriele Cosmo
230 lines
7.4 KiB
C++
230 lines
7.4 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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// 080809 Change interpolation scheme of "histogram", now using LinearLinear
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// For multidimensional interpolations By T. Koi
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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 G4ParticleHPInterpolator_h
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#define G4ParticleHPInterpolator_h 1
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#include "globals.hh"
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#include "G4InterpolationScheme.hh"
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#include "Randomize.hh"
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#include "G4ios.hh"
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#include "G4Exp.hh"
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#include "G4Log.hh"
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#include "G4HadronicException.hh"
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class G4ParticleHPInterpolator
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{
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public:
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G4ParticleHPInterpolator(){}
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~G4ParticleHPInterpolator()
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{
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// G4cout <<"deleted the interpolator"<<G4endl;
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}
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inline G4double Lin(G4double x,G4double x1,G4double x2,G4double y1,G4double y2)
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{
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G4double slope=0, off=0;
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if(x2-x1==0) return (y2+y1)/2.;
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slope = (y2-y1)/(x2-x1);
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off = y2-x2*slope;
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G4double y = x*slope+off;
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return y;
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}
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inline G4double Interpolate(G4InterpolationScheme aScheme,
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G4double x, G4double x1, G4double x2,
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G4double y1, G4double y2) const;
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inline G4double Interpolate2(G4InterpolationScheme aScheme,
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G4double x, G4double x1, G4double x2,
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G4double y1, G4double y2) const;
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G4double
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GetBinIntegral(const G4InterpolationScheme & aScheme,
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const G4double x1,const G4double x2,const G4double y1,const G4double y2);
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G4double
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GetWeightedBinIntegral(const G4InterpolationScheme & aScheme,
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const G4double x1,const G4double x2,const G4double y1,const G4double y2);
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private:
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inline G4double Histogram(G4double x, G4double x1, G4double x2, G4double y1, G4double y2) const;
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inline G4double LinearLinear(G4double x, G4double x1, G4double x2, G4double y1, G4double y2) const;
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inline G4double LinearLogarithmic(G4double x, G4double x1, G4double x2, G4double y1, G4double y2) const;
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inline G4double LogarithmicLinear(G4double x, G4double x1, G4double x2, G4double y1, G4double y2) const;
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inline G4double LogarithmicLogarithmic(G4double x, G4double x1, G4double x2, G4double y1, G4double y2) const;
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inline G4double Random(G4double x, G4double x1, G4double x2, G4double y1, G4double y2) const;
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};
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inline G4double G4ParticleHPInterpolator::
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Interpolate(G4InterpolationScheme aScheme,
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G4double x, G4double x1, G4double x2, G4double y1, G4double y2) const
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{
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G4double result(0);
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G4int theScheme = aScheme;
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theScheme = theScheme%CSTART_;
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switch(theScheme)
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{
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case 1:
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//080809
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//result = Histogram(x, x1, x2, y1, y2);
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result = LinearLinear(x, x1, x2, y1, y2);
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break;
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case 2:
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result = LinearLinear(x, x1, x2, y1, y2);
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break;
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case 3:
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result = LinearLogarithmic(x, x1, x2, y1, y2);
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break;
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case 4:
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result = LogarithmicLinear(x, x1, x2, y1, y2);
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break;
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case 5:
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result = LogarithmicLogarithmic(x, x1, x2, y1, y2);
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break;
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case 6:
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result = Random(x, x1, x2, y1, y2);
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break;
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default:
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G4cout << "theScheme = "<<theScheme<<G4endl;
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throw G4HadronicException(__FILE__, __LINE__, "G4ParticleHPInterpolator::Carthesian Invalid InterpolationScheme");
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break;
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}
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return result;
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}
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inline G4double G4ParticleHPInterpolator::
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Interpolate2(G4InterpolationScheme aScheme,
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G4double x, G4double x1, G4double x2, G4double y1, G4double y2) const
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{
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G4double result(0);
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G4int theScheme = aScheme;
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theScheme = theScheme%CSTART_;
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switch(theScheme)
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{
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case 1:
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result = Histogram(x, x1, x2, y1, y2);
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break;
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case 2:
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result = LinearLinear(x, x1, x2, y1, y2);
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break;
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case 3:
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result = LinearLogarithmic(x, x1, x2, y1, y2);
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break;
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case 4:
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result = LogarithmicLinear(x, x1, x2, y1, y2);
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break;
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case 5:
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result = LogarithmicLogarithmic(x, x1, x2, y1, y2);
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break;
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case 6:
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result = Random(x, x1, x2, y1, y2);
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break;
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default:
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G4cout << "theScheme = "<<theScheme<<G4endl;
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throw G4HadronicException(__FILE__, __LINE__, "G4ParticleHPInterpolator::Carthesian Invalid InterpolationScheme");
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break;
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}
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return result;
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}
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inline G4double G4ParticleHPInterpolator::
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Histogram(G4double , G4double , G4double , G4double y1, G4double ) const
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{
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G4double result;
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result = y1;
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return result;
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}
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inline G4double G4ParticleHPInterpolator::
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LinearLinear(G4double x, G4double x1, G4double x2, G4double y1, G4double y2) const
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{
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G4double slope=0, off=0;
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if(x2-x1==0) return (y2+y1)/2.;
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slope = (y2-y1)/(x2-x1);
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off = y2-x2*slope;
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G4double y = x*slope+off;
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return y;
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}
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inline G4double G4ParticleHPInterpolator::
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LinearLogarithmic(G4double x, G4double x1, G4double x2, G4double y1, G4double y2) const
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{
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G4double result;
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if(x==0) result = y1+y2/2.;
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else if(x1==0) result = y1;
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else if(x2==0) result = y2;
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else result = LinearLinear(G4Log(x), G4Log(x1), G4Log(x2), y1, y2);
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return result;
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}
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inline G4double G4ParticleHPInterpolator::
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LogarithmicLinear(G4double x, G4double x1, G4double x2, G4double y1, G4double y2) const
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{
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G4double result;
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if(y1==0||y2==0) result = 0;
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else
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{
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result = LinearLinear(x, x1, x2, G4Log(y1), G4Log(y2));
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result = G4Exp(result);
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}
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return result;
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}
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inline G4double G4ParticleHPInterpolator::
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LogarithmicLogarithmic(G4double x, G4double x1, G4double x2, G4double y1, G4double y2) const
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{
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if(x==0) return y1+y2/2.;
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else if(x1==0) return y1;
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else if(x2==0) return y2;
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G4double result;
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if(y1==0||y2==0) result = 0;
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else
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{
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result = LinearLinear(G4Log(x), G4Log(x1), G4Log(x2), G4Log(y1), G4Log(y2));
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result = G4Exp(result);
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}
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return result;
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}
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inline G4double G4ParticleHPInterpolator::
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Random(G4double , G4double , G4double , G4double y1, G4double y2) const
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{
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G4double result;
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result = y1+G4UniformRand()*(y2-y1);
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return result;
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}
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#endif
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