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: G4PropagatorInField.icc,v 1.13 2008/10/29 14:31:55 gcosmo Exp $ |
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28 | // GEANT4 tag $Name: geant4-09-02-cand-01 $ |
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29 | // |
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30 | // |
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31 | // ------------------------------------------------------------------------ |
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32 | // GEANT 4 inline implementation |
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33 | // |
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34 | // ------------------------------------------------------------------------ |
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35 | // |
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36 | // 25.10.96 John Apostolakis, design and implementation |
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37 | // 25.03.97 John Apostolakis, adaptation for G4Transportation and cleanup |
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38 | // |
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39 | // To create an object of this type, must have: |
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40 | // - an object that calculates the Curved paths |
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41 | // - the navigator to find (linear) intersections |
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42 | // - and ?? also must know the value of the maximum displacement allowed |
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43 | // ------------------------------------------------------------------------ |
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44 | |
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45 | inline |
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46 | G4ChordFinder* G4PropagatorInField::GetChordFinder() |
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47 | { |
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48 | // The "Chord Finder" of the current Field Mgr is used |
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49 | // -- this could be of the global field manager |
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50 | // or that of another, from the current volume |
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51 | return fCurrentFieldMgr->GetChordFinder(); |
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52 | } |
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53 | |
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54 | inline |
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55 | void G4PropagatorInField::SetChargeMomentumMass( |
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56 | G4double Charge, // in e+ units |
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57 | G4double Momentum, // in GeV/c |
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58 | G4double Mass) // in ? units |
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59 | { |
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60 | // GetChordFinder()->SetChargeMomentumMass(Charge, Momentum, Mass); |
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61 | // --> Not needed anymore, as it is done in ComputeStep for the |
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62 | // ChordFinder of the current step (which is known only then). |
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63 | fCharge = Charge; |
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64 | fInitialMomentumModulus = Momentum; |
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65 | fMass = Mass; |
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66 | } |
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67 | |
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68 | // Obtain the final space-point and velocity (normal) at the end of the Step |
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69 | // |
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70 | inline |
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71 | G4ThreeVector G4PropagatorInField::EndPosition() const |
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72 | { |
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73 | return End_PointAndTangent.GetPosition(); |
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74 | } |
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75 | |
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76 | inline |
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77 | G4ThreeVector G4PropagatorInField::EndMomentumDir() const |
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78 | { |
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79 | return End_PointAndTangent.GetMomentumDir(); |
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80 | } |
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81 | |
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82 | inline |
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83 | G4double G4PropagatorInField::GetEpsilonStep() const |
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84 | { |
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85 | return fEpsilonStep; |
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86 | } |
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87 | |
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88 | inline |
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89 | void G4PropagatorInField::SetEpsilonStep( G4double newEps ) |
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90 | { |
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91 | fEpsilonStep=newEps; |
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92 | } |
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93 | |
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94 | inline |
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95 | G4bool G4PropagatorInField::IsParticleLooping() const |
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96 | { |
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97 | return fParticleIsLooping; |
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98 | } |
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99 | |
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100 | inline |
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101 | G4int G4PropagatorInField::GetMaxLoopCount() const |
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102 | { |
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103 | return fMax_loop_count; |
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104 | } |
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105 | |
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106 | inline |
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107 | void G4PropagatorInField::SetMaxLoopCount( G4int new_max ) |
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108 | { |
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109 | fMax_loop_count = new_max; |
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110 | } |
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111 | |
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112 | inline |
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113 | G4double G4PropagatorInField::GetDeltaIntersection() const |
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114 | { |
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115 | return fCurrentFieldMgr->GetDeltaIntersection(); |
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116 | } |
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117 | |
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118 | inline |
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119 | G4double G4PropagatorInField::GetDeltaOneStep() const |
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120 | { |
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121 | return fCurrentFieldMgr->GetDeltaOneStep(); |
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122 | } |
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123 | |
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124 | inline |
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125 | void |
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126 | G4PropagatorInField::SetAccuraciesWithDeltaOneStep( G4double valDeltaOneStep ) |
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127 | { |
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128 | fDetectorFieldMgr->SetAccuraciesWithDeltaOneStep(valDeltaOneStep); |
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129 | } |
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130 | |
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131 | inline |
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132 | void G4PropagatorInField::SetDeltaOneStep( G4double valDeltaOneStep ) |
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133 | { |
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134 | fDetectorFieldMgr->SetDeltaOneStep(valDeltaOneStep); |
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135 | } |
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136 | |
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137 | inline |
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138 | void G4PropagatorInField::SetDeltaIntersection( G4double valDeltaIntersection ) |
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139 | { |
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140 | fDetectorFieldMgr->SetDeltaIntersection(valDeltaIntersection); |
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141 | } |
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142 | |
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143 | inline |
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144 | G4int G4PropagatorInField::GetVerboseLevel() const |
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145 | { |
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146 | return fVerboseLevel; |
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147 | } |
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148 | inline |
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149 | G4int G4PropagatorInField::Verbose() const // Obsolete |
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150 | { |
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151 | return GetVerboseLevel(); |
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152 | } |
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153 | |
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154 | inline |
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155 | G4FieldTrack G4PropagatorInField::GetEndState() const |
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156 | { |
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157 | return End_PointAndTangent; |
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158 | } |
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159 | |
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160 | // Minimum for Relative accuracy of a Step in volumes of global field |
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161 | inline |
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162 | G4double G4PropagatorInField::GetMinimumEpsilonStep() const |
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163 | { |
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164 | return fDetectorFieldMgr->GetMinimumEpsilonStep(); |
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165 | } |
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166 | |
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167 | inline |
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168 | void G4PropagatorInField::SetMinimumEpsilonStep( G4double newEpsMin ) |
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169 | { |
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170 | fDetectorFieldMgr->SetMinimumEpsilonStep(newEpsMin); |
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171 | } |
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172 | |
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173 | // Maximum for Relative accuracy of any Step |
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174 | inline |
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175 | G4double G4PropagatorInField::GetMaximumEpsilonStep() const |
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176 | { |
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177 | return fDetectorFieldMgr->GetMaximumEpsilonStep(); |
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178 | } |
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179 | |
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180 | inline |
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181 | void G4PropagatorInField::SetMaximumEpsilonStep( G4double newEpsMax ) |
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182 | { |
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183 | fDetectorFieldMgr->SetMaximumEpsilonStep( newEpsMax ); |
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184 | } |
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185 | |
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186 | inline |
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187 | void G4PropagatorInField::SetLargestAcceptableStep( G4double newBigDist ) |
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188 | { |
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189 | if( fLargestAcceptableStep>0.0 ) |
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190 | { |
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191 | fLargestAcceptableStep = newBigDist; |
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192 | } |
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193 | } |
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194 | |
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195 | inline |
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196 | G4double G4PropagatorInField::GetLargestAcceptableStep() |
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197 | { |
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198 | return fLargestAcceptableStep; |
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199 | } |
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200 | |
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201 | inline |
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202 | G4FieldManager* G4PropagatorInField::GetCurrentFieldManager() |
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203 | { |
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204 | return fCurrentFieldMgr; |
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205 | } |
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206 | |
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207 | inline |
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208 | void G4PropagatorInField::SetThresholdNoZeroStep( G4int noAct, |
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209 | G4int noHarsh, |
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210 | G4int noAbandon ) |
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211 | { |
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212 | if( noAct>0 ) |
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213 | fActionThreshold_NoZeroSteps = noAct; |
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214 | |
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215 | if( noHarsh > fActionThreshold_NoZeroSteps ) |
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216 | fSevereActionThreshold_NoZeroSteps = noHarsh; |
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217 | else |
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218 | fSevereActionThreshold_NoZeroSteps = 2*(fActionThreshold_NoZeroSteps+1); |
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219 | |
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220 | if( noAbandon > fSevereActionThreshold_NoZeroSteps+5 ) |
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221 | fAbandonThreshold_NoZeroSteps = noAbandon; |
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222 | else |
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223 | fAbandonThreshold_NoZeroSteps = 2*(fSevereActionThreshold_NoZeroSteps+3); |
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224 | } |
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225 | |
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226 | inline |
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227 | G4int G4PropagatorInField::GetThresholdNoZeroSteps( G4int i ) |
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228 | { |
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229 | G4int t=0; |
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230 | if( i==0 ) { t = 3; } // No of parameters |
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231 | else if (i==1) { t = fActionThreshold_NoZeroSteps; } |
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232 | else if (i==2) { t = fSevereActionThreshold_NoZeroSteps; } |
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233 | else if (i==3) { t = fAbandonThreshold_NoZeroSteps; } |
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234 | |
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235 | return t; |
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236 | } |
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237 | |
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238 | inline |
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239 | void G4PropagatorInField::SetDetectorFieldManager(G4FieldManager* newDetectorFieldManager) |
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240 | { |
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241 | fDetectorFieldMgr = newDetectorFieldManager; |
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242 | } |
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243 | |
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244 | |
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245 | inline |
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246 | void G4PropagatorInField:: SetUseSafetyForOptimization( G4bool value ) |
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247 | { |
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248 | fUseSafetyForOptimisation= value; |
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249 | } |
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250 | |
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251 | inline |
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252 | G4bool G4PropagatorInField::GetUseSafetyForOptimization() |
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253 | { |
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254 | return fUseSafetyForOptimisation; |
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255 | } |
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256 | |
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257 | inline |
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258 | void G4PropagatorInField:: |
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259 | SetNavigatorForPropagating( G4Navigator *SimpleOrMultiNavigator ) |
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260 | { |
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261 | if(SimpleOrMultiNavigator) { fNavigator= SimpleOrMultiNavigator; } |
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262 | } |
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263 | |
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264 | inline |
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265 | G4Navigator* G4PropagatorInField::GetNavigatorForPropagating() |
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266 | { |
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267 | return fNavigator; |
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268 | } |
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269 | |
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270 | inline |
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271 | void G4PropagatorInField:: |
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272 | SetIntersectionLocator( G4VIntersectionLocator *pIntLoc ) |
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273 | { |
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274 | if(pIntLoc) { fIntersectionLocator= pIntLoc; } |
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275 | } |
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276 | |
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277 | inline |
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278 | G4VIntersectionLocator* G4PropagatorInField::GetIntersectionLocator() |
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279 | { |
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280 | return fIntersectionLocator; |
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281 | } |
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282 | |
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283 | inline |
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284 | G4bool G4PropagatorInField::IntersectChord( G4ThreeVector StartPointA, |
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285 | G4ThreeVector EndPointB, |
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286 | G4double &NewSafety, |
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287 | G4double &LinearStepLength, |
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288 | G4ThreeVector &IntersectionPoint ) |
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289 | { |
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290 | // Calculate the direction and length of the chord AB |
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291 | // |
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292 | return fIntersectionLocator |
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293 | ->IntersectChord(StartPointA,EndPointB,NewSafety, |
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294 | fPreviousSafety,fPreviousSftOrigin, |
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295 | LinearStepLength,IntersectionPoint); |
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296 | } |
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