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: G4NormalNavigation.cc,v 1.9 2007/05/11 13:43:59 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 | // class G4NormalNavigation Implementation |
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32 | // |
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33 | // Author: P.Kent, 1996 |
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34 | // |
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35 | // -------------------------------------------------------------------- |
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36 | |
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37 | #include "G4NormalNavigation.hh" |
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38 | #include "G4AffineTransform.hh" |
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39 | |
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40 | #include <iomanip> |
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41 | |
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42 | // ******************************************************************** |
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43 | // Constructor |
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44 | // ******************************************************************** |
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45 | // |
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46 | G4NormalNavigation::G4NormalNavigation() |
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47 | : fCheck(false), fVerbose(0) |
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48 | { |
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49 | } |
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50 | |
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51 | // ******************************************************************** |
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52 | // Destructor |
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53 | // ******************************************************************** |
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54 | // |
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55 | G4NormalNavigation::~G4NormalNavigation() |
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56 | {;} |
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57 | |
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58 | // ******************************************************************** |
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59 | // ComputeStep |
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60 | // ******************************************************************** |
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61 | // |
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62 | G4double |
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63 | G4NormalNavigation::ComputeStep(const G4ThreeVector &localPoint, |
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64 | const G4ThreeVector &localDirection, |
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65 | const G4double currentProposedStepLength, |
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66 | G4double &newSafety, |
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67 | G4NavigationHistory &history, |
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68 | G4bool &validExitNormal, |
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69 | G4ThreeVector &exitNormal, |
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70 | G4bool &exiting, |
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71 | G4bool &entering, |
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72 | G4VPhysicalVolume *(*pBlockedPhysical), |
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73 | G4int &blockedReplicaNo) |
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74 | { |
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75 | G4VPhysicalVolume *motherPhysical, *samplePhysical, *blockedExitedVol=0; |
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76 | G4LogicalVolume *motherLogical; |
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77 | G4VSolid *motherSolid; |
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78 | G4ThreeVector sampleDirection; |
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79 | G4double ourStep=currentProposedStepLength, motherSafety, ourSafety; |
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80 | G4int localNoDaughters, sampleNo; |
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81 | |
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82 | motherPhysical = history.GetTopVolume(); |
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83 | motherLogical = motherPhysical->GetLogicalVolume(); |
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84 | motherSolid = motherLogical->GetSolid(); |
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85 | |
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86 | // Compute mother safety |
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87 | // |
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88 | motherSafety = motherSolid->DistanceToOut(localPoint); |
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89 | ourSafety = motherSafety; // Working isotropic safety |
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90 | |
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91 | #ifdef G4VERBOSE |
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92 | static G4int precVerf= 20; // Precision |
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93 | if ( fCheck ) |
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94 | { |
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95 | if( fVerbose == 1 ) |
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96 | { |
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97 | G4cout << "*** G4NormalNavigation::ComputeStep(): ***" << G4endl |
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98 | << " Invoked DistanceToOut(p) for mother solid: " |
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99 | << motherSolid->GetName() |
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100 | << ". Solid replied: " << motherSafety << G4endl |
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101 | << " For local point p: " << localPoint << G4endl |
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102 | << " To be considered as 'mother safety'." << G4endl; |
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103 | } |
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104 | if ( motherSafety < 0.0 ) |
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105 | { |
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106 | G4cerr << "ERROR - G4NormalNavigation::ComputeStep()" << G4endl |
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107 | << " Current solid " << motherSolid->GetName() |
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108 | << " gave negative safety: " << motherSafety << G4endl |
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109 | << " for the current (local) point " << localPoint |
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110 | << G4endl; |
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111 | motherSolid->DumpInfo(); |
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112 | G4Exception("G4NormalNavigation::ComputeStep()", |
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113 | "NegativeSafetyMotherVol", FatalException, |
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114 | "Negative Safety In Voxel Navigation !" ); |
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115 | } |
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116 | if( motherSolid->Inside(localPoint)==kOutside ) |
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117 | { |
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118 | G4cout << "WARNING - G4NormalNavigation::ComputeStep()" << G4endl |
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119 | << " Point " << localPoint |
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120 | << " is outside current volume " << motherPhysical->GetName() |
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121 | << G4endl; |
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122 | G4double estDistToSolid= motherSolid->DistanceToIn(localPoint); |
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123 | G4cout << " Estimated isotropic distance to solid (distToIn)= " |
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124 | << estDistToSolid << G4endl; |
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125 | if( estDistToSolid > 100.0 * motherSolid->GetTolerance() ) |
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126 | { |
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127 | motherSolid->DumpInfo(); |
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128 | G4Exception("G4NormalNavigation::ComputeStep()", |
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129 | "FarOutsideCurrentVolume", FatalException, |
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130 | "Point is far outside Current Volume !" ); |
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131 | } |
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132 | else |
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133 | G4Exception("G4NormalNavigation::ComputeStep()", "OutsideCurrentVolume", |
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134 | JustWarning, "Point is a little outside Current Volume."); |
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135 | } |
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136 | |
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137 | // Verification / verbosity |
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138 | // |
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139 | if ( fVerbose > 1 ) |
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140 | { |
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141 | G4int oldprec = G4cout.precision(precVerf); |
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142 | G4cout << " G4NormalNavigation::ComputeStep()" |
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143 | << " - Information on mother / key daughters ..." << G4endl; |
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144 | G4cout << " Type " << std::setw(12) << "Solid-Name" << " " |
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145 | << std::setw(3*(6+precVerf)) << " local point" << " " |
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146 | << std::setw(4+precVerf) << "solid-Safety" << " " |
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147 | << std::setw(4+precVerf) << "solid-Step" << " " |
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148 | << std::setw(17) << "distance Method " |
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149 | << std::setw(3*(6+precVerf)) << " local direction" << " " |
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150 | << G4endl; |
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151 | G4cout << " Mother " << std::setw(12) << motherSolid->GetName() << " " |
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152 | << std::setw(4+precVerf) << localPoint << " " |
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153 | << std::setw(4+precVerf) << motherSafety << " " |
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154 | << G4endl; |
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155 | G4cout.precision(oldprec); |
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156 | } |
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157 | |
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158 | } |
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159 | #endif |
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160 | |
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161 | // |
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162 | // Compute daughter safeties & intersections |
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163 | // |
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164 | |
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165 | // Exiting normal optimisation |
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166 | // |
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167 | if ( exiting&&validExitNormal ) |
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168 | { |
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169 | if ( localDirection.dot(exitNormal)>=kMinExitingNormalCosine ) |
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170 | { |
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171 | // Block exited daughter volume |
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172 | // |
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173 | blockedExitedVol =* pBlockedPhysical; |
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174 | ourSafety = 0; |
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175 | } |
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176 | } |
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177 | exiting = false; |
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178 | entering = false; |
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179 | |
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180 | localNoDaughters = motherLogical->GetNoDaughters(); |
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181 | for ( sampleNo=localNoDaughters-1; sampleNo>=0; sampleNo--) |
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182 | { |
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183 | samplePhysical = motherLogical->GetDaughter(sampleNo); |
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184 | if ( samplePhysical!=blockedExitedVol ) |
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185 | { |
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186 | G4AffineTransform sampleTf(samplePhysical->GetRotation(), |
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187 | samplePhysical->GetTranslation()); |
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188 | sampleTf.Invert(); |
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189 | const G4ThreeVector samplePoint = |
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190 | sampleTf.TransformPoint(localPoint); |
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191 | const G4VSolid *sampleSolid = |
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192 | samplePhysical->GetLogicalVolume()->GetSolid(); |
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193 | const G4double sampleSafety = |
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194 | sampleSolid->DistanceToIn(samplePoint); |
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195 | if ( sampleSafety<ourSafety ) |
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196 | { |
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197 | ourSafety=sampleSafety; |
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198 | } |
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199 | if ( sampleSafety<=ourStep ) |
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200 | { |
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201 | sampleDirection = sampleTf.TransformAxis(localDirection); |
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202 | const G4double sampleStep = |
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203 | sampleSolid->DistanceToIn(samplePoint,sampleDirection); |
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204 | #ifdef G4VERBOSE |
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205 | if(( fCheck ) && ( fVerbose == 1 )) |
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206 | { |
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207 | G4cout << "*** G4NormalNavigation::ComputeStep(): ***" << G4endl |
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208 | << " Invoked DistanceToIn(p,v) for daughter solid: " |
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209 | << sampleSolid->GetName() |
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210 | << ". Solid replied: " << sampleStep << G4endl |
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211 | << " For local point p: " << samplePoint << G4endl |
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212 | << " Direction v: " << sampleDirection |
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213 | << ", to be considered as 'daughter step'." << G4endl; |
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214 | } |
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215 | #endif |
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216 | if ( sampleStep<=ourStep ) |
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217 | { |
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218 | ourStep = sampleStep; |
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219 | entering = true; |
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220 | exiting = false; |
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221 | *pBlockedPhysical = samplePhysical; |
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222 | blockedReplicaNo = -1; |
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223 | |
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224 | #ifdef G4VERBOSE |
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225 | // Check to see that the resulting point is indeed in/on volume. |
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226 | // This check could eventually be made only for successful candidate. |
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227 | |
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228 | if ( ( fCheck ) && ( sampleStep < kInfinity ) ) |
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229 | { |
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230 | G4ThreeVector intersectionPoint; |
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231 | intersectionPoint= samplePoint + sampleStep * sampleDirection; |
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232 | EInside insideIntPt= sampleSolid->Inside(intersectionPoint); |
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233 | G4String solidResponse = "-kInside-"; |
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234 | if (insideIntPt == kOutside) |
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235 | solidResponse = "-kOutside-"; |
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236 | else if (insideIntPt == kSurface) |
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237 | solidResponse = "-kSurface-"; |
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238 | if( fVerbose == 1 ) |
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239 | { |
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240 | G4cout << "*** G4NormalNavigation::ComputeStep(): ***" << G4endl |
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241 | << " Invoked Inside() for solid: " |
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242 | << sampleSolid->GetName() |
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243 | << ". Solid replied: " << solidResponse << G4endl |
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244 | << " For point p: " << intersectionPoint |
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245 | << ", considered as 'intersection' point." << G4endl; |
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246 | } |
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247 | if ( insideIntPt != kSurface ) |
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248 | { |
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249 | G4int oldcoutPrec = G4cout.precision(16); |
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250 | G4cout << "WARNING - G4NormalNavigation::ComputeStep()" << G4endl |
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251 | << " Inaccurate DistanceToIn for solid " |
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252 | << sampleSolid->GetName() << G4endl; |
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253 | G4cout << " Solid gave DistanceToIn = " << sampleStep |
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254 | << " yet returns " << solidResponse |
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255 | << " for this point !" << G4endl; |
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256 | G4cout << " Point = " << intersectionPoint << G4endl; |
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257 | if ( insideIntPt != kInside ) |
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258 | G4cout << " DistanceToIn(p) = " |
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259 | << sampleSolid->DistanceToIn(intersectionPoint) |
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260 | << G4endl; |
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261 | if ( insideIntPt != kOutside ) |
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262 | G4cout << " DistanceToOut(p) = " |
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263 | << sampleSolid->DistanceToOut(intersectionPoint) |
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264 | << G4endl; |
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265 | G4Exception("G4NormalNavigation::ComputeStep()", |
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266 | "InaccurateDistanceToIn", JustWarning, |
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267 | "Navigator gets conflicting response from Solid."); |
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268 | G4cout.precision(oldcoutPrec); |
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269 | } |
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270 | } |
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271 | |
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272 | // Verification / verbosity |
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273 | // |
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274 | if ( fVerbose > 1 ) |
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275 | { |
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276 | G4int oldprec = G4cout.precision(precVerf); |
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277 | G4cout << " Daught " |
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278 | << std::setw(12) << sampleSolid->GetName() << " " |
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279 | << std::setw(4+precVerf) << samplePoint << " " |
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280 | << std::setw(4+precVerf) << sampleSafety << " " |
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281 | << std::setw(4+precVerf) << sampleStep << " " |
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282 | << std::setw(16) << "distanceToIn" << " " |
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283 | << std::setw(4+precVerf) << localDirection << " " |
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284 | << G4endl; |
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285 | G4cout.precision(oldprec); |
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286 | } |
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287 | #endif |
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288 | } |
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289 | } |
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290 | } |
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291 | } |
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292 | if ( currentProposedStepLength<ourSafety ) |
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293 | { |
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294 | // Guaranteed physics limited |
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295 | // |
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296 | entering = false; |
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297 | exiting = false; |
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298 | *pBlockedPhysical = 0; |
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299 | ourStep = kInfinity; |
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300 | } |
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301 | else |
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302 | { |
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303 | // Compute mother intersection if required |
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304 | // |
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305 | if ( motherSafety<=ourStep ) |
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306 | { |
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307 | G4double motherStep = motherSolid->DistanceToOut(localPoint, |
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308 | localDirection, |
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309 | true, |
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310 | &validExitNormal, |
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311 | &exitNormal); |
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312 | #ifdef G4VERBOSE |
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313 | if ( fCheck ) |
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314 | { |
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315 | if( fVerbose == 1 ) |
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316 | { |
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317 | G4cout << "*** G4NormalNavigation::ComputeStep(): ***" << G4endl |
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318 | << " Invoked DistanceToOut(p,v,...) for mother solid: " |
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319 | << motherSolid->GetName() |
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320 | << ". Solid replied: " << motherStep << G4endl |
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321 | << " For local point p: " << localPoint << G4endl |
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322 | << " Direction v: " << localDirection |
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323 | << ", to be considered as 'mother step'." << G4endl; |
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324 | } |
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325 | if( ( motherStep < 0.0 ) || ( motherStep >= kInfinity) ) |
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326 | { |
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327 | G4cerr << "ERROR - G4NormalNavigation::ComputeStep()" << G4endl |
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328 | << " Problem in Navigation" << G4endl |
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329 | << " Point (local coordinates): " |
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330 | << localPoint << G4endl |
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331 | << " Local Direction: " << localDirection << G4endl |
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332 | << " Solid: " << motherSolid->GetName() << G4endl; |
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333 | motherSolid->DumpInfo(); |
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334 | G4Exception("G4NormalNavigation::ComputeStep()", |
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335 | "PointDistOutInvalid", FatalException, |
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336 | "Current point is outside the current solid !"); |
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337 | } |
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338 | } |
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339 | if ( fVerbose > 1 ) |
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340 | { |
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341 | G4int oldprec = G4cout.precision(precVerf); |
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342 | G4cout << " Mother " << std::setw(12) << motherSolid->GetName() << " " |
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343 | << std::setw(4+precVerf) << localPoint << " " |
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344 | << std::setw(4+precVerf) << motherSafety << " " |
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345 | << std::setw(4+precVerf) << motherStep << " " |
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346 | << std::setw(16) << "distanceToOut" << " " |
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347 | << std::setw(4+precVerf) << localDirection << " " |
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348 | << G4endl; |
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349 | G4cout.precision(oldprec); |
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350 | } |
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351 | #endif |
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352 | |
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353 | if ( motherStep<=ourStep ) |
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354 | { |
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355 | ourStep = motherStep; |
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356 | exiting = true; |
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357 | entering = false; |
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358 | if ( validExitNormal ) |
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359 | { |
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360 | const G4RotationMatrix *rot = motherPhysical->GetRotation(); |
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361 | if (rot) |
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362 | { |
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363 | exitNormal *= rot->inverse(); |
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364 | } |
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365 | } |
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366 | } |
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367 | else |
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368 | { |
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369 | validExitNormal = false; |
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370 | } |
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371 | } |
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372 | } |
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373 | newSafety = ourSafety; |
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374 | return ourStep; |
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375 | } |
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376 | |
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377 | // ******************************************************************** |
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378 | // ComputeSafety |
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379 | // ******************************************************************** |
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380 | // |
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381 | G4double G4NormalNavigation::ComputeSafety(const G4ThreeVector &localPoint, |
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382 | const G4NavigationHistory &history, |
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383 | const G4double) |
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384 | { |
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385 | G4VPhysicalVolume *motherPhysical, *samplePhysical; |
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386 | G4LogicalVolume *motherLogical; |
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387 | G4VSolid *motherSolid; |
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388 | G4double motherSafety, ourSafety; |
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389 | G4int localNoDaughters, sampleNo; |
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390 | |
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391 | motherPhysical = history.GetTopVolume(); |
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392 | motherLogical = motherPhysical->GetLogicalVolume(); |
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393 | motherSolid = motherLogical->GetSolid(); |
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394 | |
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395 | // Compute mother safety |
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396 | // |
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397 | motherSafety = motherSolid->DistanceToOut(localPoint); |
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398 | ourSafety = motherSafety; // Working isotropic safety |
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399 | |
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400 | #ifdef G4VERBOSE |
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401 | if(( fCheck ) && ( fVerbose == 1 )) |
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402 | { |
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403 | G4cout << "*** G4NormalNavigation::ComputeSafety(): ***" << G4endl |
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404 | << " Invoked DistanceToOut(p) for mother solid: " |
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405 | << motherSolid->GetName() |
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406 | << ". Solid replied: " << motherSafety << G4endl |
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407 | << " For local point p: " << localPoint |
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408 | << ", to be considered as 'mother safety'." << G4endl; |
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409 | } |
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410 | #endif |
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411 | |
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412 | // Compute daughter safeties |
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413 | // |
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414 | localNoDaughters = motherLogical->GetNoDaughters(); |
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415 | for ( sampleNo=localNoDaughters-1; sampleNo>=0; sampleNo-- ) |
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416 | { |
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417 | samplePhysical = motherLogical->GetDaughter(sampleNo); |
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418 | G4AffineTransform sampleTf(samplePhysical->GetRotation(), |
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419 | samplePhysical->GetTranslation()); |
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420 | sampleTf.Invert(); |
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421 | const G4ThreeVector samplePoint = |
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422 | sampleTf.TransformPoint(localPoint); |
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423 | const G4VSolid *sampleSolid = |
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424 | samplePhysical->GetLogicalVolume()->GetSolid(); |
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425 | const G4double sampleSafety = |
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426 | sampleSolid->DistanceToIn(samplePoint); |
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427 | if ( sampleSafety<ourSafety ) |
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428 | { |
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429 | ourSafety = sampleSafety; |
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430 | } |
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431 | #ifdef G4VERBOSE |
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432 | if(( fCheck ) && ( fVerbose == 1 )) |
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433 | { |
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434 | G4cout << "*** G4NormalNavigation::ComputeSafety(): ***" << G4endl |
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435 | << " Invoked DistanceToIn(p) for daughter solid: " |
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436 | << sampleSolid->GetName() |
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437 | << ". Solid replied: " << sampleSafety << G4endl |
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438 | << " For local point p: " << samplePoint |
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439 | << ", to be considered as 'daughter safety'." << G4endl; |
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440 | } |
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441 | #endif |
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442 | } |
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443 | return ourSafety; |
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444 | } |
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