common/src/DetectorConstruction0.cc

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0026 //
0027 /// \file common/src/DetectorConstruction0.cc
0028 /// \brief Implementation of the Common::DetectorConstruction0 class
0029
0030 #include "DetectorConstruction0.hh"
0031
0032 #include "G4Box.hh"
0033 #include "G4GenericMessenger.hh"
0034 #include "G4LogicalVolume.hh"
0035 #include "G4Material.hh"
0036 #include "G4NistManager.hh"
0037 #include "G4PVPlacement.hh"
0038
0039 namespace Common
0040 {
0041
0042 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0043
0044 DetectorConstruction0::DetectorConstruction0(const G4String& materialName, G4double hx, G4double hy,
0045                                              G4double hz)
0046   : fMaterialName(materialName), fDimensions(hx, hy, hz)
0047 {
0048   DefineCommands();
0049 }
0050
0051 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0052
0053 DetectorConstruction0::~DetectorConstruction0()
0054 {
0055   delete fMessenger;
0056 }
0057
0058 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0059
0060 G4VPhysicalVolume* DetectorConstruction0::Construct()
0061 {
0062   // Define materials via NIST manager
0063   //
0064   auto nistManager = G4NistManager::Instance();
0065
0066   auto material = nistManager->FindOrBuildMaterial(fMaterialName);
0067
0068   // World
0069   //
0070   auto sWorld = new G4Box("World",  // name
0071                           fDimensions.x(),  // dimensions (half-lentghs)
0072                           fDimensions.y(), fDimensions.z());
0073
0074   fWorldVolume = new G4LogicalVolume(sWorld,  // shape
0075                                      material,  // material
0076                                      "World");  // name
0077
0078   auto pWorld = new G4PVPlacement(0,  // no rotation
0079                                   G4ThreeVector(),  // at (0,0,0)
0080                                   fWorldVolume,  // logical volume
0081                                   "World",  // name
0082                                   0,  // mother  volume
0083                                   false,  // no boolean operation
0084                                   0);  // copy number
0085
0086   // always return the root volume
0087   //
0088   return pWorld;
0089 }
0090
0091 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0092
0093 void DetectorConstruction0::SetMaterial(const G4String& materialName)
0094 {
0095   auto nistManager = G4NistManager::Instance();
0096
0097   auto newMaterial = nistManager->FindOrBuildMaterial(materialName);
0098   if (!newMaterial) {
0099     G4cerr << "Material " << materialName << " not found." << G4endl;
0100     G4cerr << "The box material was not changed." << G4endl;
0101     return;
0102   }
0103
0104   if (fWorldVolume) fWorldVolume->SetMaterial(newMaterial);
0105   G4cout << "Material of box changed to " << materialName << G4endl;
0106 }
0107
0108 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0109
0110 void DetectorConstruction0::SetDimensions(G4ThreeVector dimensions)
0111 {
0112   /// Set world dimension (in half lengths).
0113   /// This setting has effect only if called in PreInit> phase
0114
0115   fDimensions = dimensions;
0116 }
0117
0118 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0119
0120 void DetectorConstruction0::DefineCommands()
0121 {
0122   // Define /B5/detector command directory using generic messenger class
0123   fMessenger = new G4GenericMessenger(this, "/detector/", "Detector control");
0124
0125   // setMaterial command
0126   auto& setMaterialCmd = fMessenger->DeclareMethod(
0127     "setMaterial", &DetectorConstruction0::SetMaterial, "Set world material name.");
0128   setMaterialCmd.SetParameterName("materialName", false);
0129   setMaterialCmd.SetDefaultValue("G4_AIR");
0130   setMaterialCmd.SetStates(G4State_PreInit);
0131
0132   // setDimensions command
0133   auto& setDimensionsCmd =
0134     fMessenger->DeclareMethodWithUnit("setDimensions", "mm", &DetectorConstruction0::SetDimensions,
0135                                       "Set world dimensions (in half lentgh).");
0136   setDimensionsCmd.SetParameterName("dimensions", false);
0137   setDimensionsCmd.SetStates(G4State_PreInit);
0138 }
0139
0140 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0141
0142 }  // namespace Common