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G4EzWorld.cc
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25 //
26 // ====================================================================
27 // G4EzWorld.cc
28 //
29 // 2005 Q
30 // ====================================================================
31 #include "G4EzWorld.hh"
32 #include "G4Element.hh"
33 #include "G4Material.hh"
34 #include "G4Box.hh"
35 #include "G4LogicalVolume.hh"
36 #include "G4PVPlacement.hh"
37 #include "G4VisAttributes.hh"
38 #include "G4RunManager.hh"
39 #include "G4PhysicalConstants.hh"
40 
42 
43 // ====================================================================
44 //
45 // class description
46 //
47 // ====================================================================
48 
52 {
53 }
54 
58 {
59  world= 0;
60 }
61 
62 
67 {
68  // default matetial is "vacuum"
69  G4Material* vacuum= G4Material::GetMaterial("_Vacuum", false);
70 
71  if(vacuum==0) {
72  G4Element* elN= new G4Element("_N", "", 7., 14.00674*g/mole);
73  G4Element* elO= new G4Element("_O", "", 8., 15.9994*g/mole);
74 
75  vacuum= new G4Material("_Vacuum", universe_mean_density, 2);
76  vacuum-> AddElement(elN, 0.7);
77  vacuum-> AddElement(elO, 0.3);
78  }
79 
80  G4Box* sdworld= new G4Box("world", dx/2., dy/2., dz/2.);
81  G4LogicalVolume* lvworld= new G4LogicalVolume(sdworld, vacuum, "word");
82  G4PVPlacement* aworld= new G4PVPlacement(0, G4ThreeVector(), "world",
83  lvworld, 0, false, 0);
84 
85  // vis. attributes
86  G4VisAttributes* vaworld= new G4VisAttributes(G4Color(1.,1.,1.));
87  vaworld-> SetForceWireframe(true);
88  lvworld-> SetVisAttributes(vaworld);
89 
90  return aworld;
91 
92 }
93 
94 
98 {
99  delete world;
100  world= CreateWorld(dx, dy, dz);
101 
103  runManager-> DefineWorldVolume(world);
104 }
105 
106 
110 {
111  G4Box* box= dynamic_cast<G4Box*>(world-> GetLogicalVolume()-> GetSolid());
112  box-> SetXHalfLength(dx/2.);
113  box-> SetYHalfLength(dy/2.);
114  box-> SetZHalfLength(dz/2.);
115 
117  runManager-> GeometryHasBeenModified();
118 }
119 
120 
124 {
125  world-> GetLogicalVolume()-> SetMaterial(amaterial);
126 }
127 
128 
132 {
133  G4VisAttributes* vaworld= const_cast<G4VisAttributes*>(
134  world-> GetLogicalVolume()-> GetVisAttributes());
135  vaworld-> SetVisibility(qvis);
136 }
137