static G4VPhysicalVolume * world
static void Resize(G4double dx, G4double dy, G4double dz)
static void SetVisibility(G4bool qvis)
static void SetMaterial(G4Material *amaterial)
static G4VPhysicalVolume * CreateWorld(G4double dx=1.*m, G4double dy=1.*m, G4double dz=1.*m)
static G4VPhysicalVolume * GetWorldVolume()
static void Reset(G4double dx, G4double dy, G4double dz)