[233] | 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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