1 | // From Geant4/source/visualization/modeling/G4PhysicalVolumeModel. |
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2 | |
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3 | // this : |
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4 | #include <G4Lab/GeometryVisitor.h> |
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5 | |
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6 | // Geant4 : |
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7 | #include <G4VPhysicalVolume.hh> |
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8 | #include <G4LogicalVolume.hh> |
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9 | #include <G4VPVParameterisation.hh> |
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10 | #include <G4VSolid.hh> |
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11 | #include <G4Material.hh> |
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12 | |
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13 | ////////////////////////////////////////////////////////////////////////////// |
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14 | G4Lab::GeometryVisitor::GeometryVisitor( |
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15 | ) |
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16 | :fIndex(0) |
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17 | ////////////////////////////////////////////////////////////////////////////// |
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18 | //!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!// |
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19 | { |
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20 | } |
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21 | ////////////////////////////////////////////////////////////////////////////// |
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22 | G4Lab::GeometryVisitor::~GeometryVisitor( |
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23 | ) |
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24 | ////////////////////////////////////////////////////////////////////////////// |
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25 | //!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!// |
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26 | { |
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27 | } |
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28 | ////////////////////////////////////////////////////////////////////////////// |
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29 | bool G4Lab::GeometryVisitor::visit( |
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30 | G4VPhysicalVolume* aPV |
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31 | ,int aDepth |
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32 | ,const G4Transform3D& aTransform |
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33 | ,IVisitedVolume* aVisitedVolume |
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34 | ) |
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35 | ////////////////////////////////////////////////////////////////////////////// |
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36 | // Visits geometry structure to a given depth (aDepth), starting |
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37 | // at given physical volume with given starting transformation and |
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38 | // describes volumes to the scene handler. |
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39 | // aDepth < 0 (default) implies full visit. |
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40 | // aTransform is the Accumulated Transformation. |
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41 | // |
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42 | // Do not hold unnecessary variables on the stack during traversal. |
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43 | //!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!// |
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44 | { |
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45 | if (aPV -> IsReplicated()) { |
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46 | if(aPV->GetParameterisation()) { // Parametrised volume. |
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47 | G4VPVParameterisation* params = aPV->GetParameterisation(); |
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48 | G4int nReplicas; // Only this one is used latter. |
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49 | {EAxis axis; |
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50 | G4double width; |
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51 | G4double offset; |
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52 | G4bool consuming; |
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53 | aPV->GetReplicationData(axis,nReplicas,width,offset,consuming);} |
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54 | for (int n = 0; n < nReplicas; n++) { |
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55 | G4VSolid* solid = params -> ComputeSolid (n, aPV); |
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56 | G4Material* material = params -> ComputeMaterial (n, aPV); |
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57 | params -> ComputeTransformation (n, aPV); |
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58 | solid -> ComputeDimensions (params, n, aPV); |
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59 | aPV -> SetCopyNo (n); |
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60 | if(!descend(aPV,aDepth,solid,material,aTransform,aVisitedVolume)) |
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61 | return false; |
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62 | } |
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63 | } else { |
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64 | // Plain replicated volume. From geometry_guide.txt... |
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65 | // The replica's positions are claculated by means of a linear formula. |
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66 | // Replication may occur along: |
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67 | // |
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68 | // o Cartesian axes (kXAxis,kYAxis,kZAxis) |
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69 | // |
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70 | // The replications, of specified width have coordinates of |
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71 | // form (-width*(nReplicas-1)*0.5+n*width,0,0) where n=0.. nReplicas-1 |
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72 | // for the case of kXAxis, and are unrotated. |
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73 | // |
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74 | // o Radial axis (cylindrical polar) (kRho) |
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75 | // |
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76 | // The replications are cons/tubs sections, centred on the origin |
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77 | // and are unrotated. |
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78 | // They have radii of width*n+offset to width*(n+1)+offset |
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79 | // where n=0..nReplicas-1 |
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80 | // |
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81 | // o Phi axis (cylindrical polar) (kPhi) |
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82 | // The replications are `phi sections' or wedges, and of cons/tubs form |
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83 | // They have phi of offset+n*width to offset+(n+1)*width where |
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84 | // n=0..nReplicas-1 |
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85 | // |
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86 | EAxis axis; |
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87 | G4int nReplicas; |
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88 | G4double width; |
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89 | G4double offset; |
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90 | G4bool consuming; |
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91 | aPV->GetReplicationData(axis,nReplicas,width,offset,consuming); |
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92 | for (int n = 0; n < nReplicas; n++) { |
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93 | switch(axis) { |
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94 | default: |
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95 | case kXAxis: |
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96 | aPV->SetTranslation(G4ThreeVector |
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97 | (-width*(nReplicas-1)*0.5+n*width,0,0)); |
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98 | aPV->SetRotation(0); |
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99 | aPV->SetCopyNo(n); |
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100 | if(!descend(aPV,aDepth, |
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101 | aPV->GetLogicalVolume()->GetSolid(), |
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102 | aPV->GetLogicalVolume()->GetMaterial(), |
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103 | aTransform,aVisitedVolume)) return false; |
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104 | break; |
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105 | case kYAxis: |
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106 | aPV->SetTranslation(G4ThreeVector |
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107 | (0,-width*(nReplicas-1)*0.5+n*width,0)); |
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108 | aPV->SetRotation(0); |
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109 | aPV->SetCopyNo(n); |
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110 | if(!descend(aPV,aDepth, |
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111 | aPV->GetLogicalVolume()->GetSolid(), |
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112 | aPV->GetLogicalVolume()->GetMaterial(), |
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113 | aTransform,aVisitedVolume)) return false; |
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114 | break; |
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115 | case kZAxis: |
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116 | aPV->SetTranslation(G4ThreeVector |
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117 | (0,0,-width*(nReplicas-1)*0.5+n*width)); |
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118 | aPV->SetRotation(0); |
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119 | aPV->SetCopyNo(n); |
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120 | if(!descend(aPV,aDepth, |
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121 | aPV->GetLogicalVolume()->GetSolid(), |
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122 | aPV->GetLogicalVolume()->GetMaterial(), |
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123 | aTransform,aVisitedVolume)) return false; |
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124 | break; |
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125 | case kRho: |
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126 | //Lib::Out::putL("GeometryVisitor::visit: WARNING:"); |
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127 | //Lib::Out::putL(" built-in replicated volumes replicated"); |
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128 | //Lib::Out::putL(" in radius are not yet properly visualizable."); |
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129 | aPV->SetTranslation(G4ThreeVector(0,0,0)); |
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130 | aPV->SetRotation(0); |
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131 | aPV->SetCopyNo(n); |
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132 | if(!descend(aPV,aDepth, |
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133 | aPV->GetLogicalVolume()->GetSolid(), |
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134 | aPV->GetLogicalVolume()->GetMaterial(), |
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135 | aTransform,aVisitedVolume)) return false; |
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136 | break; |
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137 | case kPhi: |
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138 | {G4RotationMatrix rotation; |
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139 | rotation.rotateZ(-(offset+n*width)); |
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140 | // Minus Sign because for the physical volume we need the |
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141 | // coordinate system rotation. |
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142 | aPV->SetTranslation(G4ThreeVector(0,0,0)); |
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143 | aPV->SetRotation(&rotation); |
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144 | aPV->SetCopyNo(n); |
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145 | if(!descend(aPV,aDepth, |
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146 | aPV->GetLogicalVolume()->GetSolid(), |
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147 | aPV->GetLogicalVolume()->GetMaterial(), |
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148 | aTransform,aVisitedVolume)) return false; |
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149 | }break; |
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150 | } |
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151 | } |
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152 | } |
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153 | } else { |
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154 | if(!descend(aPV,aDepth, |
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155 | aPV->GetLogicalVolume()->GetSolid(), |
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156 | aPV->GetLogicalVolume()->GetMaterial(), |
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157 | aTransform,aVisitedVolume)) return false; |
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158 | } |
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159 | return true; |
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160 | } |
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161 | ////////////////////////////////////////////////////////////////////////////// |
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162 | bool G4Lab::GeometryVisitor::descend( |
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163 | G4VPhysicalVolume* aPV |
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164 | ,int aDepth |
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165 | ,G4VSolid* aSolid |
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166 | ,G4Material* aMaterial |
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167 | ,const G4Transform3D& aTransform |
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168 | ,IVisitedVolume* aVisitedVolume |
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169 | ) |
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170 | ////////////////////////////////////////////////////////////////////////////// |
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171 | // Do not hold unnecessary variables on the stack during traversal. |
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172 | //!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!// |
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173 | { |
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174 | G4Transform3D* transform = |
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175 | new G4Transform3D(*(aPV->GetObjectRotation()),aPV->GetTranslation()); |
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176 | G4Transform3D newTransform = aTransform * (*transform); |
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177 | delete transform; |
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178 | |
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179 | IVisitedVolume::Status status = |
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180 | aVisitedVolume->beginVolume(aPV,aSolid,aMaterial,newTransform,fIndex); |
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181 | |
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182 | bool retval = true; |
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183 | |
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184 | if(status==IVisitedVolume::STOP) { |
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185 | retval = false; |
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186 | } else { |
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187 | if(status==IVisitedVolume::SIBLING) { |
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188 | } else { //DAUGHTERS |
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189 | if (aDepth) { // Descent daughters : |
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190 | fIndex ++; |
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191 | int nDaughters = aPV->GetLogicalVolume()->GetNoDaughters(); |
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192 | aVisitedVolume->beginDaughters(aPV,nDaughters); |
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193 | for (int iDaughter = 0; iDaughter < nDaughters; iDaughter++) { |
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194 | if(!visit(aPV->GetLogicalVolume()->GetDaughter(iDaughter), |
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195 | aDepth-1,newTransform,aVisitedVolume)) { |
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196 | retval = false; |
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197 | break; |
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198 | } |
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199 | } |
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200 | aVisitedVolume->endDaughters(aPV,nDaughters); |
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201 | fIndex --; |
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202 | } |
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203 | } |
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204 | } |
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205 | |
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206 | aVisitedVolume->endVolume(aPV); |
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207 | return retval; |
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208 | } |
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209 | |
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