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2 | // ******************************************************************** |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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24 | // ******************************************************************** |
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25 | // |
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26 | // |
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27 | // $Id: G4PhysicsVector.icc,v 1.9 2006/06/29 19:02:40 gunter Exp $ |
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28 | // GEANT4 tag $Name: geant4-09-01-patch-02 $ |
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29 | // |
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30 | // |
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31 | //--------------------------------------------------------------- |
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32 | // GEANT 4 class source file |
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33 | // |
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34 | // G4PhysicsVector.icc |
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35 | // |
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36 | // Description: |
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37 | // A physics vector which has values of energy-loss, cross-section, |
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38 | // and other physics values of a particle in matter in a given |
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39 | // range of the energy, momentum, etc. |
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40 | // This class serves as the base class for a vector having various |
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41 | // energy scale, for example like 'log', 'linear', 'free', etc. |
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42 | // |
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43 | //--------------------------------------------------------------- |
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44 | |
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45 | |
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46 | inline |
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47 | G4double G4PhysicsVector::operator[](const size_t binNumber) const |
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48 | { |
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49 | return dataVector[binNumber]; |
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50 | } |
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51 | |
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52 | |
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53 | inline |
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54 | G4double G4PhysicsVector::operator()(const size_t binNumber) const |
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55 | { |
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56 | return dataVector[binNumber]; |
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57 | } |
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58 | |
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59 | |
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60 | inline |
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61 | size_t G4PhysicsVector::GetVectorLength() const |
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62 | { |
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63 | return numberOfBin; |
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64 | } |
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65 | |
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66 | |
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67 | |
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68 | inline |
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69 | G4double G4PhysicsVector::LinearInterpolation(G4double theEnergy, |
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70 | size_t theLocBin) |
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71 | { |
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72 | |
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73 | // Linear interpolation is used to get the value. If the give energy |
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74 | // is in the highest bin, no interpolation will be Done. Because |
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75 | // there is an extra bin hidden from a user at locBin=numberOfBin, |
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76 | // the following interpolation is valid even the current locBin= |
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77 | // numberOfBin-1. |
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78 | |
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79 | G4double intplFactor = (theEnergy-binVector[theLocBin]) |
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80 | / (binVector[theLocBin+1]-binVector[theLocBin]); // Interpolation factor |
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81 | |
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82 | return dataVector[theLocBin] + |
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83 | ( dataVector[theLocBin+1]-dataVector[theLocBin] ) * intplFactor; |
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84 | } |
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85 | |
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86 | |
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87 | inline |
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88 | G4double G4PhysicsVector::GetValue(G4double theEnergy, |
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89 | G4bool& isOutRange) |
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90 | { |
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91 | |
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92 | // Use cache for speed up - check if the value 'theEnergy' is same as the |
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93 | // last call. If it is same, then use the last bin location. Also the |
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94 | // value 'theEnergy' lies between the last energy and low edge of of the |
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95 | // bin of last call, then the last bin location is used. |
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96 | |
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97 | isOutRange = false; // No range check. |
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98 | |
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99 | size_t locBin = 0; |
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100 | |
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101 | if( !(theEnergy != lastEnergy) ) { |
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102 | return lastValue; |
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103 | |
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104 | } else if( (theEnergy < lastEnergy) |
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105 | && (theEnergy >= binVector[lastBin]) ) { |
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106 | locBin = lastBin; |
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107 | |
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108 | lastEnergy = theEnergy; |
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109 | lastValue = LinearInterpolation(theEnergy, locBin); |
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110 | return lastValue; |
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111 | |
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112 | } else if( theEnergy < edgeMin ){ |
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113 | lastBin = 0; |
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114 | lastEnergy = theEnergy; |
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115 | lastValue = dataVector[0]; |
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116 | return lastValue; |
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117 | |
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118 | } else if( theEnergy >= edgeMax ){ |
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119 | lastBin = numberOfBin-1; |
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120 | lastEnergy = theEnergy; |
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121 | lastValue = dataVector[ numberOfBin-1 ]; |
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122 | return lastValue; |
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123 | |
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124 | } else { |
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125 | locBin = FindBinLocation(theEnergy); |
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126 | |
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127 | lastBin = locBin; |
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128 | lastEnergy = theEnergy; |
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129 | lastValue = LinearInterpolation(theEnergy, locBin); |
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130 | return lastValue; |
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131 | } |
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132 | |
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133 | } |
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134 | |
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135 | inline |
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136 | void G4PhysicsVector::PutValue(size_t binNumber, G4double theValue) |
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137 | { |
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138 | dataVector[binNumber] = theValue; |
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139 | |
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140 | // Fill the bin which is hidden to user with theValue. This is to |
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141 | // handle correctly when Energy=theEmax in getValue. |
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142 | if(binNumber==numberOfBin-1) { |
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143 | dataVector[binNumber+1] = theValue; |
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144 | } |
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145 | } |
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146 | |
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147 | inline |
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148 | G4bool G4PhysicsVector::IsFilledVectorExist() const |
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149 | { |
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150 | G4bool status=false; |
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151 | |
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152 | if(numberOfBin > 0) { status=true; } |
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153 | return status; |
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154 | } |
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155 | |
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156 | |
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157 | inline |
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158 | void G4PhysicsVector::PutComment(const G4String& theComment) |
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159 | { |
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160 | comment = theComment; |
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161 | } |
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162 | |
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163 | inline |
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164 | const G4String& G4PhysicsVector::GetComment() const |
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165 | { |
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166 | return comment; |
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167 | } |
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168 | |
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169 | inline |
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170 | G4PhysicsVectorType G4PhysicsVector::GetType() const |
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171 | { |
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172 | return type; |
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173 | } |
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