ECCE @ EIC Software
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Groups Pages
RE02NestedPhantomParameterisation.cc
Go to the documentation of this file. Or view the newest version in sPHENIX GitHub for file RE02NestedPhantomParameterisation.cc
1 //
2 // ********************************************************************
3 // * License and Disclaimer *
4 // * *
5 // * The Geant4 software is copyright of the Copyright Holders of *
6 // * the Geant4 Collaboration. It is provided under the terms and *
7 // * conditions of the Geant4 Software License, included in the file *
8 // * LICENSE and available at http://cern.ch/geant4/license . These *
9 // * include a list of copyright holders. *
10 // * *
11 // * Neither the authors of this software system, nor their employing *
12 // * institutes,nor the agencies providing financial support for this *
13 // * work make any representation or warranty, express or implied, *
14 // * regarding this software system or assume any liability for its *
15 // * use. Please see the license in the file LICENSE and URL above *
16 // * for the full disclaimer and the limitation of liability. *
17 // * *
18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboration. *
20 // * By using, copying, modifying or distributing the software (or *
21 // * any work based on the software) you agree to acknowledge its *
22 // * use in resulting scientific publications, and indicate your *
23 // * acceptance of all terms of the Geant4 Software license. *
24 // ********************************************************************
25 //
28 //
29 //
32 
33 #include "G4VPhysicalVolume.hh"
34 #include "G4VTouchable.hh"
35 #include "G4ThreeVector.hh"
36 #include "G4Box.hh"
37 #include "G4LogicalVolume.hh"
38 #include "G4Material.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 //
50 
51 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
54  G4int nz,
55  std::vector<G4Material*>& mat):
57  fdX(voxelSize.x()),fdY(voxelSize.y()),fdZ(voxelSize.z()),
58  fNz(nz),fMat(mat)
59 {
60  // Position of voxels.
61  // x and y positions are already defined in DetectorConstruction
62  // by using replicated volume. Here only we need to define is z positions
63  // of voxles.
64  fpZ.clear();
65  G4double zp;
66  for ( G4int iz = 0; iz < fNz; iz++){
67  zp = (-fNz+1+2*iz)*fdZ;
68  fpZ.push_back(zp);
69  }
70 
71 }
72 
73 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
75  fpZ.clear();
76 }
77 
78 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
79 //
80 // Material assignment to geometry.
81 //
83 ::ComputeMaterial(G4VPhysicalVolume* /*currentVol*/, const G4int copyNo,
84  const G4VTouchable* parentTouch)
85 {
86  if(parentTouch==0) return fMat[0]; // protection for initialization and
87  // vis at idle state
88  // Copy number of voxels.
89  // Copy number of X and Y are obtained from replication number.
90  // Copy nymber of Z is the copy number of current voxel.
91  G4int ix = parentTouch->GetReplicaNumber(0);
92  G4int iy = parentTouch->GetReplicaNumber(1);
93  G4int iz = copyNo;
94  // For demonstration purpose,a couple of materials are chosen alternately.
95  G4Material* mat=0;
96  if ( ix%2 == 0 && iy%2 == 0 && iz%2 == 0 ) mat = fMat[0];
97  else mat = fMat[1];
98 
99  return mat;
100 }
101 
102 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
103 //
104 // Number of Materials
105 // Material scanner is required for preparing physics tables and so on before
106 // stating simulation, so that G4 has to know number of materials.
108  return fMat.size();
109 }
110 
111 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
112 //
113 // GetMaterial
114 // This is needed for material scanner and realizing geometry.
115 //
117  return fMat[i];
118 }
119 
120 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
121 //
122 // Transformation of voxels.
123 //
125 ::ComputeTransformation(const G4int copyNo, G4VPhysicalVolume* physVol) const{
126  G4ThreeVector position(0.,0.,fpZ[copyNo]);
127  physVol->SetTranslation(position);
128 }
129 
130 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
131 //
132 // Dimensions are always same in this RE02 example.
133 //
136  box.SetXHalfLength(fdX);
137  box.SetYHalfLength(fdY);
138  box.SetZHalfLength(fdZ);
139 }