[1316] | 1 | // |
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| 2 | // ******************************************************************** |
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| 3 | // * License and Disclaimer * |
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| 4 | // * * |
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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| 7 | // * conditions of the Geant4 Software License, included in the file * |
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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| 9 | // * include a list of copyright holders. * |
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| 10 | // * * |
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| 11 | // * Neither the authors of this software system, nor their employing * |
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| 12 | // * institutes,nor the agencies providing financial support for this * |
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| 13 | // * work make any representation or warranty, express or implied, * |
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| 14 | // * regarding this software system or assume any liability for its * |
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| 15 | // * use. Please see the license in the file LICENSE and URL above * |
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| 16 | // * for the full disclaimer and the limitation of liability. * |
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| 17 | // * * |
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| 18 | // * This code implementation is the result of the scientific and * |
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| 19 | // * technical work of the GEANT4 collaboration. * |
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| 20 | // * By using, copying, modifying or distributing the software (or * |
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| 21 | // * any work based on the software) you agree to acknowledge its * |
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| 22 | // * use in resulting scientific publications, and indicate your * |
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| 23 | // * acceptance of all terms of the Geant4 Software license. * |
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| 24 | // ******************************************************************** |
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| 25 | // |
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| 26 | // $Id: G4PenelopeSamplingData.hh,v 1.1 2010/03/17 14:19:04 pandola Exp $ |
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| 27 | // GEANT4 tag $Name: geant4-09-04-beta-cand-01 $ |
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| 28 | // |
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| 29 | // Author: Luciano Pandola |
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| 30 | // |
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| 31 | // History: |
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| 32 | // ----------- |
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| 33 | // 09 Dec 2009 L. Pandola 1st implementation. |
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| 34 | // |
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| 35 | // ------------------------------------------------------------------- |
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| 36 | // |
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| 37 | // Class description: |
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| 38 | // This is a container of data that are used for sampling algorithm |
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| 39 | // of Penelope08 Rayleigh scattering |
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| 40 | // ------------------------------------------------------------------- |
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| 41 | |
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| 42 | #ifndef G4PENELOPESAMPLINGDATA_HH |
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| 43 | #define G4PENELOPESAMPLINGDATA_HH 1 |
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| 44 | |
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| 45 | #include "globals.hh" |
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| 46 | #include "G4DataVector.hh" |
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| 47 | // |
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| 48 | //This is a container of data that are used for sampling algoritm |
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| 49 | // |
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| 50 | class G4PenelopeSamplingData |
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| 51 | { |
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| 52 | |
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| 53 | public: |
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| 54 | G4PenelopeSamplingData(G4int npoints=150); |
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| 55 | ~G4PenelopeSamplingData(); |
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| 56 | |
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| 57 | void AddPoint(G4double x0,G4double pac0,G4double a0,G4double b0,size_t ITTL0, |
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| 58 | size_t ITTU0); |
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| 59 | size_t GetNumberOfStoredPoints(); |
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| 60 | void Clear(); |
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| 61 | void DumpTable(); |
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| 62 | |
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| 63 | G4double GetX(size_t index); |
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| 64 | G4double GetPAC(size_t index); |
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| 65 | G4double GetA(size_t index); |
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| 66 | G4double GetB(size_t index); |
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| 67 | |
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| 68 | G4double SampleValue(G4double rndm); |
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| 69 | |
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| 70 | private: |
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| 71 | G4PenelopeSamplingData & operator=(const G4PenelopeSamplingData &right); |
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| 72 | G4PenelopeSamplingData(const G4PenelopeSamplingData&); |
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| 73 | |
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| 74 | //G4double xlow; |
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| 75 | //G4double xhigh; |
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| 76 | |
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| 77 | G4DataVector* x; //grid points, in increasing order |
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| 78 | G4DataVector* pac; //value of the cumulative pdf at x_i |
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| 79 | G4DataVector* a; // rational inverse cumulative inverse distribution parameters |
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| 80 | G4DataVector* b; |
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| 81 | |
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| 82 | std::vector<size_t> *ITTL; //largest j for which pac(j) < (i-1)/(np-1) |
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| 83 | std::vector<size_t> *ITTU; //smallest k for which pac(k) > i/(np-1) |
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| 84 | |
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| 85 | G4int np; //number of grid points |
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| 86 | |
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| 87 | |
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| 88 | |
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| 89 | }; |
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| 90 | |
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| 91 | #endif |
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| 92 | |
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