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Please see the license in the file LICENSE and URL above * 16 // * for the full disclaimer and the limitatio 16 // * for the full disclaimer and the limitation of liability. * 17 // * 17 // * * 18 // * This code implementation is the result 18 // * This code implementation is the result of the scientific and * 19 // * technical work of the GEANT4 collaboratio 19 // * technical work of the GEANT4 collaboration. * 20 // * By using, copying, modifying or distri 20 // * By using, copying, modifying or distributing the software (or * 21 // * any work based on the software) you ag 21 // * any work based on the software) you agree to acknowledge its * 22 // * use in resulting scientific publicati 22 // * use in resulting scientific publications, and indicate your * 23 // * acceptance of all terms of the Geant4 Sof 23 // * acceptance of all terms of the Geant4 Software license. * 24 // ******************************************* 24 // ******************************************************************** 25 // 25 // 26 // INCL++ intra-nuclear cascade model 26 // INCL++ intra-nuclear cascade model 27 // Alain Boudard, CEA-Saclay, France 27 // Alain Boudard, CEA-Saclay, France 28 // Joseph Cugnon, University of Liege, Belgium 28 // Joseph Cugnon, University of Liege, Belgium 29 // Jean-Christophe David, CEA-Saclay, France 29 // Jean-Christophe David, CEA-Saclay, France 30 // Pekka Kaitaniemi, CEA-Saclay, France, and H 30 // Pekka Kaitaniemi, CEA-Saclay, France, and Helsinki Institute of Physics, Finland 31 // Sylvie Leray, CEA-Saclay, France 31 // Sylvie Leray, CEA-Saclay, France 32 // Davide Mancusi, CEA-Saclay, France 32 // Davide Mancusi, CEA-Saclay, France 33 // 33 // 34 #define INCLXX_IN_GEANT4_MODE 1 34 #define INCLXX_IN_GEANT4_MODE 1 35 35 36 #include "globals.hh" 36 #include "globals.hh" 37 37 38 /** \file G4INCLIFunction1D.cc 38 /** \file G4INCLIFunction1D.cc 39 * \brief Functor for 1-dimensional mathematic 39 * \brief Functor for 1-dimensional mathematical functions 40 * 40 * 41 * \date 16 July 2011 41 * \date 16 July 2011 42 * \author Davide Mancusi 42 * \author Davide Mancusi 43 */ 43 */ 44 44 45 #include <algorithm> 45 #include <algorithm> 46 #include <cmath> 46 #include <cmath> 47 #include <cstdlib> 47 #include <cstdlib> 48 #include "G4INCLIFunction1D.hh" 48 #include "G4INCLIFunction1D.hh" 49 #include "G4INCLLogger.hh" 49 #include "G4INCLLogger.hh" 50 #include "G4INCLInvFInterpolationTable.hh" 50 #include "G4INCLInvFInterpolationTable.hh" 51 51 52 namespace G4INCL { 52 namespace G4INCL { 53 53 54 const G4double IFunction1D::integrationCoeff 54 const G4double IFunction1D::integrationCoefficients[] = { 55 2.*95.0/288.0, 55 2.*95.0/288.0, 56 317.0/240.0, 56 317.0/240.0, 57 23.0/30.0, 57 23.0/30.0, 58 793.0/720.0, 58 793.0/720.0, 59 157.0/160.0, 59 157.0/160.0, 60 157.0/160.0, 60 157.0/160.0, 61 793.0/720.0, 61 793.0/720.0, 62 23.0/30.0, 62 23.0/30.0, 63 317.0/240.0, 63 317.0/240.0, 64 }; 64 }; 65 65 66 G4double IFunction1D::integrate(const G4doub 66 G4double IFunction1D::integrate(const G4double x0, const G4double x1, const G4double step) const { 67 G4double xi = std::max(x0, xMin); 67 G4double xi = std::max(x0, xMin); 68 G4double xa = std::min(x1, xMax); 68 G4double xa = std::min(x1, xMax); 69 G4double sign; 69 G4double sign; 70 70 71 if(x1 <= x0) { 71 if(x1 <= x0) { 72 sign = -1.0; 72 sign = -1.0; 73 std::swap(xi, xa); 73 std::swap(xi, xa); 74 } else 74 } else 75 sign = 1.0; 75 sign = 1.0; 76 76 77 const G4double interval = xa - xi; 77 const G4double interval = xa - xi; 78 78 79 G4int nIntervals; 79 G4int nIntervals; 80 if(step<0.) { 80 if(step<0.) { 81 nIntervals = 45; 81 nIntervals = 45; 82 } else { 82 } else { 83 nIntervals = G4int(interval/step); 83 nIntervals = G4int(interval/step); 84 84 85 // Round up nIntervals to the closest mu 85 // Round up nIntervals to the closest multiple of 9 86 G4int remainder = nIntervals % 9; 86 G4int remainder = nIntervals % 9; 87 if (remainder != 0) 87 if (remainder != 0) 88 nIntervals += 9 - remainder; 88 nIntervals += 9 - remainder; 89 89 90 nIntervals = std::max(nIntervals, 9); 90 nIntervals = std::max(nIntervals, 9); 91 } 91 } 92 92 93 const G4double dx = interval/nIntervals; 93 const G4double dx = interval/nIntervals; 94 G4double result = (operator()(xi) + operat 94 G4double result = (operator()(xi) + operator()(xa)) * integrationCoefficients[0]/2; 95 for(G4int j = 1; j<nIntervals; ++j) { 95 for(G4int j = 1; j<nIntervals; ++j) { 96 const G4double x = xi + interval*G4doubl 96 const G4double x = xi + interval*G4double(j)/G4double(nIntervals); 97 const unsigned index = j%9; 97 const unsigned index = j%9; 98 result += operator()(x) * integrationCoe 98 result += operator()(x) * integrationCoefficients[index]; 99 } 99 } 100 100 101 return result*dx*sign; 101 return result*dx*sign; 102 102 103 } 103 } 104 104 105 IFunction1D *IFunction1D::primitive() const 105 IFunction1D *IFunction1D::primitive() const { 106 class Primitive : public IFunction1D { 106 class Primitive : public IFunction1D { 107 public: 107 public: 108 Primitive(IFunction1D const * const f) 108 Primitive(IFunction1D const * const f) : 109 IFunction1D(f->getXMinimum(), f->get 109 IFunction1D(f->getXMinimum(), f->getXMaximum()), 110 theFunction(f) 110 theFunction(f) 111 {} 111 {} 112 112 113 G4double operator()(const G4double x) 113 G4double operator()(const G4double x) const { 114 return theFunction->integrate(xMin,x 114 return theFunction->integrate(xMin,x); 115 } 115 } 116 private: 116 private: 117 IFunction1D const * const theFunction; 117 IFunction1D const * const theFunction; 118 } *thePrimitive = new Primitive(this); 118 } *thePrimitive = new Primitive(this); 119 119 120 return thePrimitive; 120 return thePrimitive; 121 } 121 } 122 122 123 InterpolationTable *IFunction1D::inverseCDFT 123 InterpolationTable *IFunction1D::inverseCDFTable(IFunction1D::ManipulatorFunc fWrap, const G4int nNodes) const { 124 class InverseCDF : public IFunction1D { 124 class InverseCDF : public IFunction1D { 125 public: 125 public: 126 InverseCDF(IFunction1D const * const f 126 InverseCDF(IFunction1D const * const f, ManipulatorFunc fw) : 127 IFunction1D(f->getXMinimum(), f->get 127 IFunction1D(f->getXMinimum(), f->getXMaximum()), 128 theFunction(f), 128 theFunction(f), 129 normalisation(1./theFunction->integr 129 normalisation(1./theFunction->integrate(xMin,xMax)), 130 fWrap(fw) 130 fWrap(fw) 131 {} 131 {} 132 132 133 G4double operator()(const G4double x) 133 G4double operator()(const G4double x) const { 134 if(fWrap) 134 if(fWrap) 135 return fWrap(std::min(1., normalis 135 return fWrap(std::min(1., normalisation * theFunction->integrate(xMin,x))); 136 else 136 else 137 return std::min(1., normalisation 137 return std::min(1., normalisation * theFunction->integrate(xMin,x)); 138 } 138 } 139 private: 139 private: 140 IFunction1D const * const theFunction; 140 IFunction1D const * const theFunction; 141 const G4double normalisation; 141 const G4double normalisation; 142 ManipulatorFunc fWrap; 142 ManipulatorFunc fWrap; 143 } *theInverseCDF = new InverseCDF(this, fW 143 } *theInverseCDF = new InverseCDF(this, fWrap); 144 144 145 InterpolationTable *theTable = new InvFInt 145 InterpolationTable *theTable = new InvFInterpolationTable(*theInverseCDF, nNodes); 146 delete theInverseCDF; 146 delete theInverseCDF; 147 return theTable; 147 return theTable; 148 } 148 } 149 } 149 } 150 150 151 151