[833] | 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 | // |
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[850] | 27 | // $Id: G4PhysicsVector.cc,v 1.22 2008/09/05 18:04:45 vnivanch Exp $ |
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| 28 | // GEANT4 tag $Name: HEAD $ |
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[833] | 29 | // |
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| 30 | // |
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| 31 | // -------------------------------------------------------------- |
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| 32 | // GEANT 4 class implementation file |
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| 33 | // |
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| 34 | // G4PhysicsVector.cc |
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| 35 | // |
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| 36 | // History: |
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| 37 | // 02 Dec. 1995, G.Cosmo : Structure created based on object model |
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| 38 | // 03 Mar. 1996, K.Amako : Implemented the 1st version |
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| 39 | // 01 Jul. 1996, K.Amako : Hidden bin from the user introduced |
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| 40 | // 12 Nov. 1998, K.Amako : A bug in GetVectorLength() fixed |
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| 41 | // 11 Nov. 2000, H.Kurashige : use STL vector for dataVector and binVector |
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| 42 | // 18 Jan. 2001, H.Kurashige : removed ptrNextTable |
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| 43 | // 09 Mar. 2001, H.Kurashige : added G4PhysicsVector type |
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[850] | 44 | // 05 Sep. 2008, V.Ivanchenko : added protections for zero-length vector |
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[833] | 45 | // -------------------------------------------------------------- |
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| 46 | |
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| 47 | #include "G4PhysicsVector.hh" |
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| 48 | #include <iomanip> |
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| 49 | |
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[850] | 50 | // -------------------------------------------------------------- |
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| 51 | |
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| 52 | G4PhysicsVector::G4PhysicsVector(G4bool spline) |
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[833] | 53 | : type(T_G4PhysicsVector), |
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[850] | 54 | edgeMin(DBL_MAX), edgeMax(0.), numberOfBin(0), |
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| 55 | lastEnergy(0.), lastValue(0.), lastBin(0), |
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| 56 | secDerivative(0), useSpline(spline) |
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[833] | 57 | { |
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[850] | 58 | binVector.push_back(edgeMin); |
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| 59 | dataVector.push_back(0.0); |
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[833] | 60 | } |
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| 61 | |
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[850] | 62 | // -------------------------------------------------------------- |
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| 63 | |
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[833] | 64 | G4PhysicsVector::~G4PhysicsVector() |
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| 65 | { |
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[850] | 66 | delete [] secDerivative; |
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[833] | 67 | } |
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| 68 | |
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[850] | 69 | // -------------------------------------------------------------- |
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| 70 | |
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[833] | 71 | G4PhysicsVector::G4PhysicsVector(const G4PhysicsVector& right) |
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| 72 | { |
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| 73 | *this=right; |
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| 74 | } |
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| 75 | |
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[850] | 76 | // -------------------------------------------------------------- |
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| 77 | |
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[833] | 78 | G4PhysicsVector& G4PhysicsVector::operator=(const G4PhysicsVector& right) |
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| 79 | { |
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| 80 | if (&right==this) { return *this; } |
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| 81 | if (type != right.type) { return *this; } |
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| 82 | |
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| 83 | type = right.type; |
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| 84 | edgeMin = right.edgeMin; |
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| 85 | edgeMax = right.edgeMax; |
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| 86 | numberOfBin = right.numberOfBin; |
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| 87 | lastEnergy = right.lastEnergy; |
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| 88 | lastValue = right.lastValue; |
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| 89 | lastBin = right.lastBin; |
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| 90 | dataVector = right.dataVector; |
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| 91 | binVector = right.binVector; |
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[850] | 92 | secDerivative = right.secDerivative; |
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| 93 | useSpline = right.useSpline; |
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[833] | 94 | comment = right.comment; |
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| 95 | return *this; |
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| 96 | } |
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| 97 | |
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[850] | 98 | // -------------------------------------------------------------- |
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| 99 | |
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[833] | 100 | G4int G4PhysicsVector::operator==(const G4PhysicsVector &right) const |
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| 101 | { |
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| 102 | return (this == &right); |
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| 103 | } |
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| 104 | |
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[850] | 105 | // -------------------------------------------------------------- |
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| 106 | |
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[833] | 107 | G4int G4PhysicsVector::operator!=(const G4PhysicsVector &right) const |
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| 108 | { |
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| 109 | return (this != &right); |
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| 110 | } |
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| 111 | |
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[850] | 112 | // -------------------------------------------------------------- |
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| 113 | |
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[833] | 114 | G4double G4PhysicsVector::GetLowEdgeEnergy(size_t binNumber) const |
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| 115 | { |
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| 116 | return binVector[binNumber]; |
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| 117 | } |
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| 118 | |
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[850] | 119 | // -------------------------------------------------------------- |
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| 120 | |
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[833] | 121 | G4bool G4PhysicsVector::Store(std::ofstream& fOut, G4bool ascii) |
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| 122 | { |
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| 123 | // Ascii mode |
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| 124 | if (ascii) |
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| 125 | { |
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| 126 | fOut << *this; |
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| 127 | return true; |
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| 128 | } |
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| 129 | // Binary Mode |
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| 130 | |
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| 131 | // binning |
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| 132 | fOut.write((char*)(&edgeMin), sizeof edgeMin); |
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| 133 | fOut.write((char*)(&edgeMax), sizeof edgeMax); |
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| 134 | fOut.write((char*)(&numberOfBin), sizeof numberOfBin); |
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| 135 | |
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| 136 | // contents |
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| 137 | size_t size = dataVector.size(); |
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| 138 | fOut.write((char*)(&size), sizeof size); |
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| 139 | |
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| 140 | G4double* value = new G4double[2*size]; |
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| 141 | for(size_t i = 0; i < size; i++) |
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| 142 | { |
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| 143 | value[2*i] = binVector[i]; |
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| 144 | value[2*i+1]= dataVector[i]; |
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| 145 | } |
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| 146 | fOut.write((char*)(value), 2*size*(sizeof (G4double))); |
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| 147 | delete [] value; |
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| 148 | |
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| 149 | return true; |
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| 150 | } |
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| 151 | |
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[850] | 152 | // -------------------------------------------------------------- |
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| 153 | |
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[833] | 154 | G4bool G4PhysicsVector::Retrieve(std::ifstream& fIn, G4bool ascii) |
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| 155 | { |
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| 156 | // clear properties; |
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| 157 | lastEnergy=0.; |
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| 158 | lastValue =0.; |
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| 159 | lastBin =0; |
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| 160 | dataVector.clear(); |
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| 161 | binVector.clear(); |
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| 162 | comment = ""; |
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| 163 | |
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| 164 | // retrieve in ascii mode |
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| 165 | if (ascii) |
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| 166 | { |
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| 167 | // binning |
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| 168 | fIn >> edgeMin >> edgeMax >> numberOfBin; |
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| 169 | if (fIn.fail()) { return false; } |
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| 170 | // contents |
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| 171 | size_t size=0; |
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| 172 | fIn >> size; |
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| 173 | if (fIn.fail()) { return false; } |
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| 174 | |
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| 175 | binVector.reserve(size); |
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| 176 | dataVector.reserve(size); |
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[850] | 177 | G4double vBin, vData; |
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| 178 | |
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[833] | 179 | for(size_t i = 0; i < size ; i++) |
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| 180 | { |
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[850] | 181 | vBin = 0.; |
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| 182 | vData= 0.; |
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[833] | 183 | fIn >> vBin >> vData; |
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| 184 | if (fIn.fail()) { return false; } |
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| 185 | binVector.push_back(vBin); |
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| 186 | dataVector.push_back(vData); |
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| 187 | } |
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| 188 | return true ; |
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| 189 | } |
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| 190 | |
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| 191 | // retrieve in binary mode |
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| 192 | // binning |
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| 193 | fIn.read((char*)(&edgeMin), sizeof edgeMin); |
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| 194 | fIn.read((char*)(&edgeMax), sizeof edgeMax); |
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| 195 | fIn.read((char*)(&numberOfBin), sizeof numberOfBin ); |
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| 196 | |
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| 197 | // contents |
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| 198 | size_t size; |
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| 199 | fIn.read((char*)(&size), sizeof size); |
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| 200 | |
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| 201 | G4double* value = new G4double[2*size]; |
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| 202 | fIn.read((char*)(value), 2*size*(sizeof(G4double)) ); |
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[850] | 203 | if (G4int(fIn.gcount()) != G4int(2*size*(sizeof(G4double))) ) |
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| 204 | { |
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[833] | 205 | delete [] value; |
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| 206 | return false; |
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| 207 | } |
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| 208 | |
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| 209 | binVector.reserve(size); |
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| 210 | dataVector.reserve(size); |
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[850] | 211 | for(size_t i = 0; i < size; i++) |
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| 212 | { |
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[833] | 213 | binVector.push_back(value[2*i]); |
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| 214 | dataVector.push_back(value[2*i+1]); |
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| 215 | } |
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| 216 | delete [] value; |
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| 217 | return true; |
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| 218 | } |
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[850] | 219 | |
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| 220 | // -------------------------------------------------------------- |
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| 221 | |
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| 222 | void G4PhysicsVector::FillSecondDerivatives() |
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| 223 | { |
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| 224 | secDerivative = new G4double [numberOfBin]; |
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| 225 | |
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| 226 | secDerivative[0] = 0.0 ; |
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| 227 | |
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| 228 | // cannot compute derivatives for less than 3 points |
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| 229 | if(3 > numberOfBin) { |
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| 230 | secDerivative[numberOfBin-1] = 0.0 ; |
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| 231 | return; |
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| 232 | } |
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| 233 | |
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| 234 | G4double* u = new G4double [numberOfBin]; |
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| 235 | u[0] = 0.0 ; |
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| 236 | |
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| 237 | // Decomposition loop for tridiagonal algorithm. secDerivative[i] |
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| 238 | // and u[i] are used for temporary storage of the decomposed factors. |
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| 239 | |
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| 240 | for(size_t i=1; i<numberOfBin-1; i++) |
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| 241 | { |
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| 242 | G4double sig = (binVector[i]-binVector[i-1]) |
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| 243 | / (binVector[i+1]-binVector[i-1]) ; |
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| 244 | G4double p = sig*secDerivative[i-1] + 2.0 ; |
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| 245 | secDerivative[i] = (sig - 1.0)/p ; |
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| 246 | u[i] = (dataVector[i+1]-dataVector[i])/(binVector[i+1]-binVector[i]) |
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| 247 | - (dataVector[i]-dataVector[i-1])/(binVector[i]-binVector[i-1]) ; |
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| 248 | u[i] =(6.0*u[i]/(binVector[i+1]-binVector[i-1]) - sig*u[i-1])/p ; |
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| 249 | } |
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| 250 | |
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| 251 | G4double qn = 0.0 ; |
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| 252 | G4double un = 0.0 ; |
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| 253 | |
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| 254 | secDerivative[numberOfBin-1] = (un - qn*u[numberOfBin-2]) |
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| 255 | / (qn*secDerivative[numberOfBin-2] + 1.0) ; |
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| 256 | |
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| 257 | // The back-substitution loop for the triagonal algorithm of solving |
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| 258 | // a linear system of equations. |
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| 259 | |
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| 260 | for(G4int k=numberOfBin-2; k>=0; k--) |
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| 261 | { |
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| 262 | secDerivative[k] = secDerivative[k]*secDerivative[k+1] + u[k]; |
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| 263 | } |
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| 264 | delete [] u; |
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| 265 | } |
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| 266 | |
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| 267 | // -------------------------------------------------------------- |
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| 268 | |
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[833] | 269 | std::ostream& operator<<(std::ostream& out, const G4PhysicsVector& pv) |
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| 270 | { |
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| 271 | // binning |
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| 272 | out << std::setprecision(12) << pv.edgeMin; |
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| 273 | out <<" " << pv.edgeMax <<" " << pv.numberOfBin << G4endl; |
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| 274 | |
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| 275 | // contents |
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| 276 | out << pv.dataVector.size() << G4endl; |
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| 277 | for(size_t i = 0; i < pv.dataVector.size(); i++) |
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| 278 | { |
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| 279 | out << std::setprecision(12) << pv.binVector[i] << " " |
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| 280 | << pv.dataVector[i] << G4endl; |
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| 281 | } |
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| 282 | return out; |
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| 283 | } |
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