Gabriele Cosmo
92 lines
3.2 KiB
C++
92 lines
3.2 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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// $Id$
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//
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// Author: Luciano Pandola
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//
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// History:
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// -----------
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// 09 Dec 2009 L. Pandola 1st implementation.
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//
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// -------------------------------------------------------------------
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//
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// Class description:
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// This is a container of data that are used for sampling algorithm
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// of Penelope08 Rayleigh scattering
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// -------------------------------------------------------------------
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#ifndef G4PENELOPESAMPLINGDATA_HH
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#define G4PENELOPESAMPLINGDATA_HH 1
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#include "globals.hh"
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#include "G4DataVector.hh"
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//
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//This is a container of data that are used for sampling algoritm
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//
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class G4PenelopeSamplingData
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{
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public:
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G4PenelopeSamplingData(G4int npoints=150);
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~G4PenelopeSamplingData();
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void AddPoint(G4double x0,G4double pac0,G4double a0,G4double b0,size_t ITTL0,
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size_t ITTU0);
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size_t GetNumberOfStoredPoints();
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void Clear();
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void DumpTable();
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G4double GetX(size_t index);
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G4double GetPAC(size_t index);
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G4double GetA(size_t index);
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G4double GetB(size_t index);
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G4double SampleValue(G4double rndm);
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private:
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G4PenelopeSamplingData & operator=(const G4PenelopeSamplingData &right);
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G4PenelopeSamplingData(const G4PenelopeSamplingData&);
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//G4double xlow;
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//G4double xhigh;
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G4DataVector* x; //grid points, in increasing order
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G4DataVector* pac; //value of the cumulative pdf at x_i
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G4DataVector* a; // rational inverse cumulative inverse distribution parameters
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G4DataVector* b;
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std::vector<size_t> *ITTL; //largest j for which pac(j) < (i-1)/(np-1)
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std::vector<size_t> *ITTU; //smallest k for which pac(k) > i/(np-1)
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G4int np; //number of grid points
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};
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#endif
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