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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27 | // $Id: G4PhysicsOrderedFreeVector.cc,v 1.12 2008/09/22 14:49:57 gcosmo Exp $ |
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28 | // GEANT4 tag $Name: geant4-09-02-ref-02 $ |
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29 | // |
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30 | //////////////////////////////////////////////////////////////////////// |
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31 | // PhysicsOrderedFreeVector Class Implementation |
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32 | //////////////////////////////////////////////////////////////////////// |
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33 | // |
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34 | // File: G4PhysicsOrderedFreeVector.cc |
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35 | // Version: 2.0 |
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36 | // Created: 1996-08-13 |
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37 | // Author: Juliet Armstrong |
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38 | // Updated: 1997-03-25 by Peter Gumplinger |
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39 | // > cosmetics (only) |
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40 | // 1998-11-11 by Peter Gumplinger |
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41 | // > initialize all data members of the base class in |
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42 | // derived class constructors |
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43 | // 2000-11-11 by H.Kurashige |
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44 | // > use STL vector for dataVector and binVector |
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45 | // mail: gum@triumf.ca |
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46 | // |
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47 | // |
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48 | //////////////////////////////////////////////////////////////////////// |
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49 | |
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50 | #include "G4PhysicsOrderedFreeVector.hh" |
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51 | |
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52 | ///////////////////////// |
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53 | // Class Implementation |
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54 | ///////////////////////// |
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55 | |
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56 | ///////////////// |
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57 | // Constructors |
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58 | ///////////////// |
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59 | |
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60 | G4PhysicsOrderedFreeVector::G4PhysicsOrderedFreeVector(G4double *Energies, |
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61 | G4double *Values, |
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62 | size_t VectorLength) |
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63 | : G4PhysicsVector() |
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64 | { |
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65 | type = T_G4PhysicsOrderedFreeVector; |
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66 | |
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67 | dataVector.reserve(VectorLength+1); |
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68 | binVector.reserve(VectorLength+1); |
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69 | numberOfBin = VectorLength; |
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70 | |
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71 | for (size_t i = 0 ; i < VectorLength ; i++) |
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72 | { |
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73 | binVector.push_back(Energies[i]); |
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74 | dataVector.push_back(Values[i]); |
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75 | } |
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76 | edgeMin = binVector.front(); |
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77 | edgeMax = binVector.back(); |
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78 | binVector.push_back ( binVector[numberOfBin-1] + 1.0 ); |
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79 | dataVector.push_back( dataVector[numberOfBin-1] ); |
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80 | } |
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81 | |
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82 | G4PhysicsOrderedFreeVector::G4PhysicsOrderedFreeVector() |
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83 | : G4PhysicsVector() |
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84 | { |
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85 | type = T_G4PhysicsOrderedFreeVector; |
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86 | } |
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87 | |
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88 | //////////////// |
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89 | // Destructors |
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90 | //////////////// |
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91 | |
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92 | G4PhysicsOrderedFreeVector::~G4PhysicsOrderedFreeVector() {} |
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93 | |
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94 | //////////// |
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95 | // Methods |
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96 | //////////// |
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97 | |
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98 | void |
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99 | G4PhysicsOrderedFreeVector::InsertValues(G4double energy, G4double value) |
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100 | { |
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101 | binVector.push_back(energy); |
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102 | dataVector.push_back(value); |
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103 | numberOfBin++; |
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104 | edgeMin = binVector.front(); |
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105 | edgeMax = binVector.back(); |
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106 | |
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107 | } |
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108 | |
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109 | G4double |
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110 | G4PhysicsOrderedFreeVector::GetLowEdgeEnergy(size_t binNumber) const |
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111 | { |
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112 | return binVector[binNumber]; |
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113 | } |
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114 | |
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115 | G4double |
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116 | G4PhysicsOrderedFreeVector::GetEnergy(G4double aValue) |
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117 | { |
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118 | |
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119 | if (aValue <= GetMinValue()) { |
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120 | return GetMinLowEdgeEnergy(); |
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121 | } else if (aValue >= GetMaxValue()) { |
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122 | return GetMaxLowEdgeEnergy(); |
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123 | } else { |
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124 | size_t closestBin = FindValueBinLocation(aValue); |
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125 | G4double theEnergy = LinearInterpolationOfEnergy(aValue, closestBin); |
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126 | |
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127 | return theEnergy; |
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128 | } |
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129 | } |
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130 | |
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131 | size_t |
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132 | G4PhysicsOrderedFreeVector::FindValueBinLocation(G4double aValue) |
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133 | { |
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134 | G4int n1 = 0; |
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135 | G4int n2 = numberOfBin/2; |
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136 | G4int n3 = numberOfBin - 1; |
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137 | while (n1 != n3 - 1) { |
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138 | if (aValue > dataVector[n2]) |
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139 | { n1 = n2; } |
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140 | else |
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141 | { n3 = n2; } |
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142 | n2 = n1 + (n3 - n1 + 1)/2; |
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143 | } |
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144 | return (size_t)n1; |
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145 | } |
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146 | |
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147 | G4double |
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148 | G4PhysicsOrderedFreeVector::LinearInterpolationOfEnergy(G4double aValue, |
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149 | size_t theLocBin) |
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150 | { |
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151 | G4double intplFactor = (aValue-dataVector[theLocBin]) |
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152 | / (dataVector[theLocBin+1]-dataVector[theLocBin]); // Interpolation factor |
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153 | |
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154 | return binVector[theLocBin] + |
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155 | ( binVector[theLocBin+1]-binVector[theLocBin] ) * intplFactor; |
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156 | } |
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