| 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: G4CascadeSampler.hh,v 1.4 2010/08/03 23:09:36 mkelsey Exp $ |
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| 27 | // GEANT4 tag: $Name: hadr-casc-V09-03-85 $ |
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| 28 | // |
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| 29 | // 20100506 M. Kelsey -- Move functionality of G4CascadeChannel here, |
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| 30 | // use as base class to G4CascadeFunctions<T>. |
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| 31 | // 20100512 M. Kelsey -- Make this templated on energy and multiplicity |
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| 32 | // binning, as base to new sampler. |
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| 33 | // 20100803 M. Kelsey -- Add print function for debugging. |
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| 34 | |
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| 35 | #ifndef G4_CASCADE_SAMPLER_HH |
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| 36 | #define G4_CASCADE_SAMPLER_HH |
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| 37 | |
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| 38 | #include <vector> |
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| 39 | #include "globals.hh" |
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| 40 | #include "G4CascadeInterpolator.hh" |
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| 41 | |
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| 42 | template <int NBINS, int NMULT> |
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| 43 | class G4CascadeSampler { |
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| 44 | public: |
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| 45 | enum { energyBins=NBINS, multBins=NMULT }; // For use in function arguments |
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| 46 | |
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| 47 | G4CascadeSampler(const G4double (&ebins)[energyBins]) |
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| 48 | : interpolator(ebins), energyScale(ebins) {} |
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| 49 | |
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| 50 | virtual ~G4CascadeSampler() {} |
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| 51 | |
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| 52 | virtual G4double |
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| 53 | findCrossSection(double ke, const G4double (&xsec)[energyBins]) const; |
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| 54 | |
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| 55 | virtual G4int |
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| 56 | findMultiplicity(G4double ke, const G4double xmult[][energyBins]) const; |
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| 57 | |
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| 58 | virtual G4int |
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| 59 | findFinalStateIndex(G4int mult, G4double ke, const G4int index[], |
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| 60 | const G4double xsec[][energyBins]) const; |
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| 61 | |
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| 62 | virtual void print() const; |
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| 63 | |
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| 64 | private: |
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| 65 | // Optional start/stop arguments default to inclusive arrays |
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| 66 | void fillSigmaBuffer(G4double ke, const G4double x[][energyBins], |
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| 67 | G4int startBin=0, G4int stopBin=multBins) const; |
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| 68 | |
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| 69 | G4int sampleFlat() const; |
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| 70 | |
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| 71 | G4CascadeInterpolator<NBINS> interpolator; |
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| 72 | mutable std::vector<G4double> sigmaBuf; |
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| 73 | const G4double (&energyScale)[energyBins]; |
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| 74 | }; |
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| 75 | |
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| 76 | #include "G4CascadeSampler.icc" |
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| 77 | |
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| 78 | #endif /* G4_CASCADE_SAMPLER_HH */ |
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