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25 //
26 /// \file runAndEvent/RE02/src/RE02NestedPhantomParameterisation.cc
27 /// \brief Implementation of the RE02NestedPhantomParameterisation class
28 //
29 //
30 ///////////////////////////////////////////////////////////////////////////////
31 #include "RE02NestedPhantomParameterisation.hh"
32
33 #include "G4Box.hh"
34 #include "G4LogicalVolume.hh"
35 #include "G4Material.hh"
36 #include "G4ThreeVector.hh"
37 #include "G4VPhysicalVolume.hh"
38 #include "G4VTouchable.hh"
39
40 //=======================================================================
41 // (RE02NestedPhantomParameterisation)
42 //
43 // (Description)
44 // Class for nested parameterisation.
45 // This parameterisation handles material and transfomation of voxles.
46 //
47 // T.Aso Created. Nov.2007.
48 //
49 ////////////////////////////////////////////////////////////////////
50
51 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
52 RE02NestedPhantomParameterisation ::RE02NestedPhantomParameterisation(
53 const G4ThreeVector& voxelSize, G4int nz, std::vector<G4Material*>& mat)
54 : G4VNestedParameterisation(),
55 fdX(voxelSize.x()),
56 fdY(voxelSize.y()),
57 fdZ(voxelSize.z()),
58 fNz(nz),
59 fMat(mat)
60 {
61 // Position of voxels.
62 // x and y positions are already defined in DetectorConstruction
63 // by using replicated volume. Here only we need to define is z positions
64 // of voxles.
65 fpZ.clear();
66 G4double zp;
67 for (G4int iz = 0; iz < fNz; iz++) {
68 zp = (-fNz + 1 + 2 * iz) * fdZ;
69 fpZ.push_back(zp);
70 }
71 }
72
73 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
74 RE02NestedPhantomParameterisation::~RE02NestedPhantomParameterisation()
75 {
76 fpZ.clear();
77 }
78
79 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
80 //
81 // Material assignment to geometry.
82 //
83 G4Material* RE02NestedPhantomParameterisation ::ComputeMaterial(G4VPhysicalVolume* /*currentVol*/,
84 const G4int copyNo,
85 const G4VTouchable* parentTouch)
86 {
87 if (parentTouch == 0)
88 return fMat[0]; // protection for initialization and
89 // vis at idle state
90 // Copy number of voxels.
91 // Copy number of X and Y are obtained from replication number.
92 // Copy nymber of Z is the copy number of current voxel.
93 G4int ix = parentTouch->GetReplicaNumber(0);
94 G4int iy = parentTouch->GetReplicaNumber(1);
95 G4int iz = copyNo;
96 // For demonstration purpose,a couple of materials are chosen alternately.
97 G4Material* mat = 0;
98 if (ix % 2 == 0 && iy % 2 == 0 && iz % 2 == 0)
99 mat = fMat[0];
100 else
101 mat = fMat[1];
102
103 return mat;
104 }
105
106 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
107 //
108 // Number of Materials
109 // Material scanner is required for preparing physics tables and so on before
110 // stating simulation, so that G4 has to know number of materials.
111 G4int RE02NestedPhantomParameterisation::GetNumberOfMaterials() const
112 {
113 return fMat.size();
114 }
115
116 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
117 //
118 // GetMaterial
119 // This is needed for material scanner and realizing geometry.
120 //
121 G4Material* RE02NestedPhantomParameterisation::GetMaterial(G4int i) const
122 {
123 return fMat[i];
124 }
125
126 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
127 //
128 // Transformation of voxels.
129 //
130 void RE02NestedPhantomParameterisation ::ComputeTransformation(const G4int copyNo,
131 G4VPhysicalVolume* physVol) const
132 {
133 G4ThreeVector position(0., 0., fpZ[copyNo]);
134 physVol->SetTranslation(position);
135 }
136
137 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
138 //
139 // Dimensions are always same in this RE02 example.
140 //
141 void RE02NestedPhantomParameterisation ::ComputeDimensions(G4Box& box, const G4int,
142 const G4VPhysicalVolume*) const
143 {
144 box.SetXHalfLength(fdX);
145 box.SetYHalfLength(fdY);
146 box.SetZHalfLength(fdZ);
147 }
148