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: G4ParameterisedNavigation.cc,v 1.13 2010/07/13 15:59:42 gcosmo Exp $ |
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28 | // GEANT4 tag $Name: geant4-09-04-ref-00 $ |
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29 | // |
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30 | // |
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31 | // class G4ParameterisedNavigation Implementation |
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32 | // |
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33 | // Initial Author: P.Kent, 1996 |
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34 | // Revisions: |
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35 | // J. Apostolakis 24 Nov 2005, Revised/fixed treatment of nested params |
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36 | // J. Apostolakis 4 Feb 2005, Reintroducting multi-level parameterisation |
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37 | // for materials only - see note 1 below |
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38 | // G. Cosmo 11 Mar 2004, Added Check mode |
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39 | // G. Cosmo 15 May 2002, Extended to 3-d voxelisation, made subclass |
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40 | // J. Apostolakis 5 Mar 1998, Enabled parameterisation of mat & solid type |
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41 | // -------------------------------------------------------------------- |
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42 | |
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43 | // Note 1: Design/implementation note for extensions - JAp, March 1st, 2005 |
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44 | // We cannot make the solid, dimensions and transformation dependent on |
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45 | // parent because the voxelisation will not have access to this. |
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46 | // So the following can NOT be done: |
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47 | // sampleSolid = curParam->ComputeSolid(num, curPhysical, pParentTouch); |
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48 | // sampleSolid->ComputeDimensions(curParam, num, curPhysical, pParentTouch); |
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49 | // curParam->ComputeTransformation(num, curPhysical, pParentTouch); |
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50 | |
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51 | #include "G4ParameterisedNavigation.hh" |
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52 | #include "G4TouchableHistory.hh" |
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53 | #include "G4VNestedParameterisation.hh" |
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54 | |
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55 | // ******************************************************************** |
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56 | // Constructor |
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57 | // ******************************************************************** |
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58 | // |
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59 | G4ParameterisedNavigation::G4ParameterisedNavigation() |
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60 | : fVoxelAxis(kUndefined), fVoxelNoSlices(0), fVoxelSliceWidth(0.), |
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61 | fVoxelNodeNo(0), fVoxelHeader(0) |
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62 | { |
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63 | } |
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64 | |
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65 | // *************************************************************************** |
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66 | // Destructor |
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67 | // *************************************************************************** |
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68 | // |
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69 | G4ParameterisedNavigation::~G4ParameterisedNavigation() |
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70 | { |
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71 | } |
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72 | |
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73 | // *************************************************************************** |
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74 | // ComputeStep |
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75 | // *************************************************************************** |
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76 | // |
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77 | G4double G4ParameterisedNavigation:: |
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78 | ComputeStep(const G4ThreeVector& localPoint, |
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79 | const G4ThreeVector& localDirection, |
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80 | const G4double currentProposedStepLength, |
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81 | G4double& newSafety, |
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82 | G4NavigationHistory& history, |
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83 | G4bool& validExitNormal, |
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84 | G4ThreeVector& exitNormal, |
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85 | G4bool& exiting, |
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86 | G4bool& entering, |
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87 | G4VPhysicalVolume *(*pBlockedPhysical), |
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88 | G4int& blockedReplicaNo) |
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89 | { |
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90 | G4VPhysicalVolume *motherPhysical, *samplePhysical; |
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91 | G4VPVParameterisation *sampleParam; |
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92 | G4LogicalVolume *motherLogical; |
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93 | G4VSolid *motherSolid, *sampleSolid; |
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94 | G4ThreeVector sampleDirection; |
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95 | G4double ourStep=currentProposedStepLength, motherSafety, ourSafety; |
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96 | G4int sampleNo; |
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97 | |
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98 | G4bool initialNode, noStep; |
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99 | G4SmartVoxelNode *curVoxelNode; |
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100 | G4int curNoVolumes, contentNo; |
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101 | G4double voxelSafety; |
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102 | |
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103 | // Replication data |
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104 | // |
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105 | EAxis axis; |
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106 | G4int nReplicas; |
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107 | G4double width, offset; |
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108 | G4bool consuming; |
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109 | |
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110 | motherPhysical = history.GetTopVolume(); |
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111 | motherLogical = motherPhysical->GetLogicalVolume(); |
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112 | motherSolid = motherLogical->GetSolid(); |
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113 | |
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114 | // |
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115 | // Compute mother safety |
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116 | // |
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117 | |
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118 | motherSafety = motherSolid->DistanceToOut(localPoint); |
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119 | ourSafety = motherSafety; // Working isotropic safety |
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120 | |
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121 | #ifdef G4VERBOSE |
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122 | if ( fCheck ) |
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123 | { |
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124 | if( motherSafety < 0.0 ) |
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125 | { |
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126 | G4cout << "ERROR - G4ParameterisedNavigation::ComputeStep()" << G4endl |
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127 | << " Current solid " << motherSolid->GetName() |
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128 | << " gave negative safety: " << motherSafety << G4endl |
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129 | << " for the current (local) point " << localPoint |
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130 | << G4endl; |
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131 | motherSolid->DumpInfo(); |
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132 | G4Exception("G4ParameterisedNavigation::ComputeStep()", |
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133 | "NegativeSafetyMotherVol", FatalException, |
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134 | "Negative Safety In Voxel Navigation !" ); |
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135 | } |
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136 | if( motherSolid->Inside(localPoint)==kOutside ) |
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137 | { |
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138 | G4cout << "WARNING - G4ParameterisedNavigation::ComputeStep()" << G4endl |
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139 | << " Point " << localPoint |
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140 | << " is outside current volume " << motherPhysical->GetName() |
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141 | << G4endl; |
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142 | G4double estDistToSolid= motherSolid->DistanceToIn(localPoint); |
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143 | G4cout << " Estimated isotropic distance to solid (distToIn)= " |
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144 | << estDistToSolid << G4endl; |
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145 | if( estDistToSolid > 100.0 * motherSolid->GetTolerance() ) |
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146 | { |
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147 | motherSolid->DumpInfo(); |
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148 | G4Exception("G4ParameterisedNavigation::ComputeStep()", |
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149 | "FarOutsideCurrentVolume", FatalException, |
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150 | "Point is far outside Current Volume !"); |
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151 | } |
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152 | else |
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153 | G4Exception("G4ParameterisedNavigation::ComputeStep()", |
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154 | "OutsideCurrentVolume", JustWarning, |
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155 | "Point is a little outside Current Volume."); |
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156 | } |
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157 | } |
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158 | #endif |
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159 | |
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160 | // |
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161 | // Compute daughter safeties & intersections |
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162 | // |
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163 | |
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164 | initialNode = true; |
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165 | noStep = true; |
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166 | |
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167 | // By definition, parameterised volumes exist as first |
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168 | // daughter of the mother volume |
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169 | // |
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170 | samplePhysical = motherLogical->GetDaughter(0); |
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171 | samplePhysical->GetReplicationData(axis,nReplicas,width,offset,consuming); |
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172 | fBList.Enlarge(nReplicas); |
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173 | fBList.Reset(); |
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174 | |
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175 | // Exiting normal optimisation |
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176 | // |
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177 | if (exiting && (*pBlockedPhysical==samplePhysical) && validExitNormal) |
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178 | { |
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179 | if (localDirection.dot(exitNormal)>=kMinExitingNormalCosine) |
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180 | { |
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181 | assert( (0 <= blockedReplicaNo)&&(blockedReplicaNo<nReplicas) ); |
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182 | |
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183 | // Block exited daughter replica; Must be on boundary => zero safety |
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184 | // |
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185 | fBList.BlockVolume(blockedReplicaNo); |
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186 | ourSafety = 0; |
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187 | } |
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188 | } |
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189 | exiting = false; |
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190 | entering = false; |
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191 | |
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192 | sampleParam = samplePhysical->GetParameterisation(); |
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193 | |
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194 | do |
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195 | { |
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196 | curVoxelNode = fVoxelNode; |
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197 | curNoVolumes = curVoxelNode->GetNoContained(); |
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198 | |
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199 | for ( contentNo=curNoVolumes-1; contentNo>=0; contentNo-- ) |
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200 | { |
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201 | sampleNo = curVoxelNode->GetVolume(contentNo); |
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202 | if ( !fBList.IsBlocked(sampleNo) ) |
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203 | { |
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204 | fBList.BlockVolume(sampleNo); |
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205 | |
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206 | // Call virtual methods, and copy information if needed |
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207 | // |
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208 | sampleSolid = IdentifyAndPlaceSolid( sampleNo, samplePhysical, |
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209 | sampleParam ); |
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210 | |
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211 | G4AffineTransform sampleTf(samplePhysical->GetRotation(), |
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212 | samplePhysical->GetTranslation()); |
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213 | sampleTf.Invert(); |
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214 | const G4ThreeVector samplePoint = sampleTf.TransformPoint(localPoint); |
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215 | const G4double sampleSafety = sampleSolid->DistanceToIn(samplePoint); |
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216 | if ( sampleSafety<ourSafety ) |
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217 | { |
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218 | ourSafety = sampleSafety; |
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219 | } |
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220 | if ( sampleSafety<=ourStep ) |
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221 | { |
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222 | sampleDirection = sampleTf.TransformAxis(localDirection); |
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223 | G4double sampleStep = |
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224 | sampleSolid->DistanceToIn(samplePoint, sampleDirection); |
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225 | if ( sampleStep<=ourStep ) |
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226 | { |
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227 | ourStep = sampleStep; |
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228 | entering = true; |
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229 | exiting = false; |
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230 | *pBlockedPhysical = samplePhysical; |
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231 | blockedReplicaNo = sampleNo; |
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232 | #ifdef G4VERBOSE |
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233 | // Check to see that the resulting point is indeed in/on volume. |
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234 | // This check could eventually be made only for successful |
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235 | // candidate. |
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236 | |
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237 | if ( ( fCheck ) && ( sampleStep < kInfinity ) ) |
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238 | { |
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239 | G4ThreeVector intersectionPoint; |
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240 | intersectionPoint= samplePoint + sampleStep * sampleDirection; |
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241 | EInside insideIntPt= sampleSolid->Inside(intersectionPoint); |
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242 | if( insideIntPt != kSurface ) |
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243 | { |
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244 | G4int oldcoutPrec = G4cout.precision(16); |
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245 | G4cout << "WARNING - G4ParameterisedNavigation::ComputeStep()" |
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246 | << G4endl |
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247 | << " Inaccurate solid DistanceToIn" |
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248 | << " for solid " << sampleSolid->GetName() << G4endl; |
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249 | G4cout << " Solid gave DistanceToIn = " |
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250 | << sampleStep << " yet returns " ; |
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251 | if( insideIntPt == kInside ) |
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252 | G4cout << "-kInside-"; |
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253 | else if( insideIntPt == kOutside ) |
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254 | G4cout << "-kOutside-"; |
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255 | else |
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256 | G4cout << "-kSurface-"; |
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257 | G4cout << " for this point !" << G4endl; |
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258 | G4cout << " Point = " << intersectionPoint << G4endl; |
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259 | if ( insideIntPt != kInside ) |
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260 | G4cout << " DistanceToIn(p) = " |
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261 | << sampleSolid->DistanceToIn(intersectionPoint) |
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262 | << G4endl; |
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263 | if ( insideIntPt != kOutside ) |
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264 | G4cout << " DistanceToOut(p) = " |
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265 | << sampleSolid->DistanceToOut(intersectionPoint) |
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266 | << G4endl; |
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267 | G4Exception("G4ParameterisedNavigation::ComputeStep()", |
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268 | "InaccurateDistanceToIn", JustWarning, |
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269 | "Navigator gets conflicting response from Solid."); |
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270 | G4cout.precision(oldcoutPrec); |
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271 | } |
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272 | } |
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273 | #endif |
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274 | } |
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275 | } |
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276 | } |
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277 | } |
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278 | |
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279 | if ( initialNode ) |
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280 | { |
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281 | initialNode = false; |
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282 | voxelSafety = ComputeVoxelSafety(localPoint,axis); |
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283 | if ( voxelSafety<ourSafety ) |
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284 | { |
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285 | ourSafety = voxelSafety; |
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286 | } |
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287 | if ( currentProposedStepLength<ourSafety ) |
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288 | { |
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289 | // Guaranteed physics limited |
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290 | // |
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291 | noStep = false; |
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292 | entering = false; |
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293 | exiting = false; |
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294 | *pBlockedPhysical = 0; |
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295 | ourStep = kInfinity; |
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296 | } |
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297 | else |
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298 | { |
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299 | // |
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300 | // Compute mother intersection if required |
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301 | // |
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302 | if ( motherSafety<=ourStep ) |
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303 | { |
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304 | G4double motherStep = motherSolid->DistanceToOut(localPoint, |
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305 | localDirection, |
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306 | true, |
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307 | &validExitNormal, |
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308 | &exitNormal); |
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309 | #ifdef G4VERBOSE |
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310 | if ( fCheck ) |
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311 | if( ( motherStep < 0.0 ) || ( motherStep >= kInfinity) ) |
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312 | { |
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313 | G4int oldPrOut= G4cout.precision(16); |
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314 | G4int oldPrErr= G4cerr.precision(16); |
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315 | G4cerr << "ERROR - G4ParameterisedNavigation::ComputeStep()" |
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316 | << G4endl |
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317 | << " Problem in Navigation" << G4endl |
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318 | << " Point (local coordinates): " |
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319 | << localPoint << G4endl |
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320 | << " Local Direction: " |
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321 | << localDirection << G4endl |
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322 | << " Solid: " << motherSolid->GetName() << G4endl; |
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323 | motherSolid->DumpInfo(); |
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324 | G4Exception("G4ParameterisedNavigation::ComputeStep()", |
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325 | "PointOutsideCurrentVolume", FatalException, |
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326 | "Current point is outside the current solid !"); |
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327 | G4cout.precision(oldPrOut); |
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328 | G4cerr.precision(oldPrErr); |
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329 | } |
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330 | #endif |
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331 | if ( motherStep<=ourStep ) |
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332 | { |
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333 | ourStep = motherStep; |
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334 | exiting = true; |
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335 | entering = false; |
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336 | if ( validExitNormal ) |
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337 | { |
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338 | const G4RotationMatrix *rot = motherPhysical->GetRotation(); |
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339 | if (rot) |
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340 | { |
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341 | exitNormal *= rot->inverse(); |
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342 | } |
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343 | } |
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344 | } |
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345 | else |
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346 | { |
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347 | validExitNormal = false; |
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348 | } |
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349 | } |
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350 | } |
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351 | newSafety=ourSafety; |
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352 | } |
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353 | if (noStep) |
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354 | { |
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355 | noStep = LocateNextVoxel(localPoint, localDirection, ourStep, axis); |
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356 | } |
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357 | } while (noStep); |
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358 | |
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359 | return ourStep; |
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360 | } |
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361 | |
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362 | // *************************************************************************** |
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363 | // ComputeSafety |
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364 | // *************************************************************************** |
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365 | // |
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366 | G4double |
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367 | G4ParameterisedNavigation::ComputeSafety(const G4ThreeVector& localPoint, |
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368 | const G4NavigationHistory& history, |
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369 | const G4double ) |
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370 | { |
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371 | G4VPhysicalVolume *motherPhysical, *samplePhysical; |
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372 | G4VPVParameterisation *sampleParam; |
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373 | G4LogicalVolume *motherLogical; |
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374 | G4VSolid *motherSolid, *sampleSolid; |
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375 | G4double motherSafety, ourSafety; |
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376 | G4int sampleNo, curVoxelNodeNo; |
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377 | |
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378 | G4SmartVoxelNode *curVoxelNode; |
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379 | G4int curNoVolumes, contentNo; |
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380 | G4double voxelSafety; |
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381 | |
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382 | // Replication data |
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383 | // |
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384 | EAxis axis; |
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385 | G4int nReplicas; |
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386 | G4double width, offset; |
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387 | G4bool consuming; |
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388 | |
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389 | motherPhysical = history.GetTopVolume(); |
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390 | motherLogical = motherPhysical->GetLogicalVolume(); |
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391 | motherSolid = motherLogical->GetSolid(); |
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392 | |
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393 | // |
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394 | // Compute mother safety |
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395 | // |
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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 | // |
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401 | // Compute daughter safeties |
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402 | // |
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403 | |
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404 | // By definition, parameterised volumes exist as first |
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405 | // daughter of the mother volume |
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406 | // |
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407 | samplePhysical = motherLogical->GetDaughter(0); |
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408 | samplePhysical->GetReplicationData(axis, nReplicas, |
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409 | width, offset, consuming); |
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410 | sampleParam = samplePhysical->GetParameterisation(); |
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411 | |
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412 | // Look inside the current Voxel only at the current point |
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413 | // |
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414 | if ( axis==kUndefined ) // 3D case: current voxel node is retrieved |
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415 | { // from G4VoxelNavigation. |
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416 | curVoxelNode = fVoxelNode; |
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417 | } |
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418 | else // 1D case: current voxel node is computed here. |
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419 | { |
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420 | curVoxelNodeNo = G4int((localPoint(fVoxelAxis) |
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421 | -fVoxelHeader->GetMinExtent()) / fVoxelSliceWidth ); |
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422 | curVoxelNode = fVoxelHeader->GetSlice(curVoxelNodeNo)->GetNode(); |
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423 | fVoxelNodeNo = curVoxelNodeNo; |
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424 | fVoxelNode = curVoxelNode; |
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425 | } |
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426 | curNoVolumes = curVoxelNode->GetNoContained(); |
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427 | |
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428 | for ( contentNo=curNoVolumes-1; contentNo>=0; contentNo-- ) |
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429 | { |
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430 | sampleNo = curVoxelNode->GetVolume(contentNo); |
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431 | |
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432 | // Call virtual methods, and copy information if needed |
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433 | // |
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434 | sampleSolid= IdentifyAndPlaceSolid( sampleNo,samplePhysical,sampleParam ); |
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435 | |
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436 | G4AffineTransform sampleTf(samplePhysical->GetRotation(), |
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437 | samplePhysical->GetTranslation()); |
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438 | sampleTf.Invert(); |
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439 | const G4ThreeVector samplePoint = sampleTf.TransformPoint(localPoint); |
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440 | G4double sampleSafety = sampleSolid->DistanceToIn(samplePoint); |
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441 | if ( sampleSafety<ourSafety ) |
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442 | { |
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443 | ourSafety = sampleSafety; |
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444 | } |
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445 | } |
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446 | |
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447 | voxelSafety = ComputeVoxelSafety(localPoint,axis); |
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448 | if ( voxelSafety<ourSafety ) |
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449 | { |
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450 | ourSafety=voxelSafety; |
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451 | } |
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452 | |
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453 | return ourSafety; |
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454 | } |
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455 | |
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456 | // ******************************************************************** |
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457 | // ComputeVoxelSafety |
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458 | // |
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459 | // Computes safety from specified point to collected voxel boundaries |
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460 | // using already located point. |
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461 | // ******************************************************************** |
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462 | // |
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463 | G4double G4ParameterisedNavigation:: |
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464 | ComputeVoxelSafety(const G4ThreeVector& localPoint, |
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465 | const EAxis pAxis) const |
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466 | { |
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467 | // If no best axis is specified, adopt default |
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468 | // strategy as for placements |
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469 | // |
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470 | if ( pAxis==kUndefined ) |
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471 | { |
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472 | return G4VoxelNavigation::ComputeVoxelSafety(localPoint); |
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473 | } |
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474 | |
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475 | G4double voxelSafety, plusVoxelSafety, minusVoxelSafety; |
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476 | G4double curNodeOffset, minCurCommonDelta, maxCurCommonDelta; |
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477 | G4int minCurNodeNoDelta, maxCurNodeNoDelta; |
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478 | |
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479 | // Compute linear intersection distance to boundaries of max/min |
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480 | // to collected nodes at current level |
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481 | // |
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482 | curNodeOffset = fVoxelNodeNo*fVoxelSliceWidth; |
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483 | minCurCommonDelta = localPoint(fVoxelAxis) |
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484 | - fVoxelHeader->GetMinExtent()-curNodeOffset; |
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485 | maxCurNodeNoDelta = fVoxelNode->GetMaxEquivalentSliceNo()-fVoxelNodeNo; |
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486 | minCurNodeNoDelta = fVoxelNodeNo-fVoxelNode->GetMinEquivalentSliceNo(); |
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487 | maxCurCommonDelta = fVoxelSliceWidth-minCurCommonDelta; |
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488 | plusVoxelSafety = minCurNodeNoDelta*fVoxelSliceWidth+minCurCommonDelta; |
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489 | minusVoxelSafety = maxCurNodeNoDelta*fVoxelSliceWidth+maxCurCommonDelta; |
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490 | voxelSafety = std::min(plusVoxelSafety,minusVoxelSafety); |
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491 | |
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492 | if ( voxelSafety<0 ) |
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493 | { |
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494 | voxelSafety = 0; |
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495 | } |
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496 | |
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497 | return voxelSafety; |
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498 | } |
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499 | |
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500 | // ******************************************************************** |
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501 | // LocateNextVoxel |
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502 | // |
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503 | // Finds the next voxel from the current voxel and point |
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504 | // in the specified direction. |
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505 | // |
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506 | // Returns false if all voxels considered |
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507 | // true otherwise |
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508 | // [current Step ends inside same voxel or leaves all voxels] |
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509 | // ******************************************************************** |
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510 | // |
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511 | G4bool G4ParameterisedNavigation:: |
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512 | LocateNextVoxel( const G4ThreeVector& localPoint, |
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513 | const G4ThreeVector& localDirection, |
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514 | const G4double currentStep, |
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515 | const EAxis pAxis) |
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516 | { |
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517 | // If no best axis is specified, adopt default |
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518 | // location strategy as for placements |
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519 | // |
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520 | if ( pAxis==kUndefined ) |
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521 | { |
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522 | return G4VoxelNavigation::LocateNextVoxel(localPoint, |
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523 | localDirection, |
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524 | currentStep); |
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525 | } |
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526 | |
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527 | G4bool isNewVoxel; |
---|
528 | G4int newNodeNo; |
---|
529 | G4double minVal, maxVal, curMinExtent, curCoord; |
---|
530 | |
---|
531 | curMinExtent = fVoxelHeader->GetMinExtent(); |
---|
532 | curCoord = localPoint(fVoxelAxis)+currentStep*localDirection(fVoxelAxis); |
---|
533 | minVal = curMinExtent+fVoxelNode->GetMinEquivalentSliceNo()*fVoxelSliceWidth; |
---|
534 | isNewVoxel = false; |
---|
535 | |
---|
536 | if ( minVal<=curCoord ) |
---|
537 | { |
---|
538 | maxVal = curMinExtent |
---|
539 | + (fVoxelNode->GetMaxEquivalentSliceNo()+1)*fVoxelSliceWidth; |
---|
540 | if ( maxVal<curCoord ) |
---|
541 | { |
---|
542 | newNodeNo = fVoxelNode->GetMaxEquivalentSliceNo()+1; |
---|
543 | if ( newNodeNo<fVoxelHeader->GetNoSlices() ) |
---|
544 | { |
---|
545 | fVoxelNodeNo = newNodeNo; |
---|
546 | fVoxelNode = fVoxelHeader->GetSlice(newNodeNo)->GetNode(); |
---|
547 | isNewVoxel = true; |
---|
548 | } |
---|
549 | } |
---|
550 | } |
---|
551 | else |
---|
552 | { |
---|
553 | newNodeNo = fVoxelNode->GetMinEquivalentSliceNo()-1; |
---|
554 | |
---|
555 | // Must locate from newNodeNo no and down to setup stack and fVoxelNode |
---|
556 | // Repeat or earlier code... |
---|
557 | // |
---|
558 | if ( newNodeNo>=0 ) |
---|
559 | { |
---|
560 | fVoxelNodeNo = newNodeNo; |
---|
561 | fVoxelNode = fVoxelHeader->GetSlice(newNodeNo)->GetNode(); |
---|
562 | isNewVoxel = true; |
---|
563 | } |
---|
564 | } |
---|
565 | return isNewVoxel; |
---|
566 | } |
---|
567 | |
---|
568 | // ******************************************************************** |
---|
569 | // LevelLocate |
---|
570 | // ******************************************************************** |
---|
571 | // |
---|
572 | G4bool |
---|
573 | G4ParameterisedNavigation::LevelLocate( G4NavigationHistory& history, |
---|
574 | const G4VPhysicalVolume* blockedVol, |
---|
575 | const G4int blockedNum, |
---|
576 | const G4ThreeVector& globalPoint, |
---|
577 | const G4ThreeVector* globalDirection, |
---|
578 | const G4bool pLocatedOnEdge, |
---|
579 | G4ThreeVector& localPoint ) |
---|
580 | { |
---|
581 | G4SmartVoxelHeader *motherVoxelHeader; |
---|
582 | G4SmartVoxelNode *motherVoxelNode; |
---|
583 | G4VPhysicalVolume *motherPhysical, *pPhysical; |
---|
584 | G4VPVParameterisation *pParam; |
---|
585 | G4LogicalVolume *motherLogical; |
---|
586 | G4VSolid *pSolid; |
---|
587 | G4ThreeVector samplePoint; |
---|
588 | G4int voxelNoDaughters, replicaNo; |
---|
589 | |
---|
590 | motherPhysical = history.GetTopVolume(); |
---|
591 | motherLogical = motherPhysical->GetLogicalVolume(); |
---|
592 | motherVoxelHeader = motherLogical->GetVoxelHeader(); |
---|
593 | |
---|
594 | // Find the voxel containing the point |
---|
595 | // |
---|
596 | motherVoxelNode = ParamVoxelLocate(motherVoxelHeader,localPoint); |
---|
597 | |
---|
598 | voxelNoDaughters = motherVoxelNode->GetNoContained(); |
---|
599 | if ( voxelNoDaughters==0 ) { return false; } |
---|
600 | |
---|
601 | pPhysical = motherLogical->GetDaughter(0); |
---|
602 | pParam = pPhysical->GetParameterisation(); |
---|
603 | |
---|
604 | // Save parent history in touchable history |
---|
605 | // ... for use as parent t-h in ComputeMaterial method of param |
---|
606 | // |
---|
607 | G4TouchableHistory parentTouchable( history ); |
---|
608 | |
---|
609 | // Search replicated daughter volume |
---|
610 | // |
---|
611 | for ( register int sampleNo=voxelNoDaughters-1; sampleNo>=0; sampleNo-- ) |
---|
612 | { |
---|
613 | replicaNo = motherVoxelNode->GetVolume(sampleNo); |
---|
614 | if ( (replicaNo!=blockedNum) || (pPhysical!=blockedVol) ) |
---|
615 | { |
---|
616 | // Obtain solid (as it can vary) and obtain its parameters |
---|
617 | // |
---|
618 | pSolid = IdentifyAndPlaceSolid( replicaNo, pPhysical, pParam ); |
---|
619 | |
---|
620 | // Setup history |
---|
621 | // |
---|
622 | history.NewLevel(pPhysical, kParameterised, replicaNo); |
---|
623 | samplePoint = history.GetTopTransform().TransformPoint(globalPoint); |
---|
624 | if ( !G4AuxiliaryNavServices::CheckPointOnSurface( pSolid, samplePoint, |
---|
625 | globalDirection, history.GetTopTransform(), pLocatedOnEdge) ) |
---|
626 | { |
---|
627 | history.BackLevel(); |
---|
628 | } |
---|
629 | else |
---|
630 | { |
---|
631 | // Enter this daughter |
---|
632 | // |
---|
633 | localPoint = samplePoint; |
---|
634 | |
---|
635 | // Set the correct copy number in physical |
---|
636 | // |
---|
637 | pPhysical->SetCopyNo(replicaNo); |
---|
638 | |
---|
639 | // Set the correct solid and material in Logical Volume |
---|
640 | // |
---|
641 | G4LogicalVolume *pLogical = pPhysical->GetLogicalVolume(); |
---|
642 | pLogical->SetSolid(pSolid); |
---|
643 | pLogical->UpdateMaterial(pParam->ComputeMaterial(replicaNo, |
---|
644 | pPhysical, &parentTouchable) ); |
---|
645 | return true; |
---|
646 | } |
---|
647 | } |
---|
648 | } |
---|
649 | return false; |
---|
650 | } |
---|