ExTGDetectorConstructionWithCpp Class Reference

Detector construction class using text geometry file and C++ code. More...

#include <ExTGDetectorConstructionWithCpp.hh>

Inheritance diagram for ExTGDetectorConstructionWithCpp:

Public Member Functions
	ExTGDetectorConstructionWithCpp ()
	~ExTGDetectorConstructionWithCpp ()
G4VPhysicalVolume *	Construct ()
Public Member Functions inherited from G4VUserDetectorConstruction
	G4VUserDetectorConstruction ()
virtual	~G4VUserDetectorConstruction ()
virtual void	ConstructSDandField ()
virtual void	CloneSD ()
virtual void	CloneF ()
void	RegisterParallelWorld (G4VUserParallelWorld *)
G4int	ConstructParallelGeometries ()
void	ConstructParallelSD ()
G4int	GetNumberOfParallelWorld () const
G4VUserParallelWorld *	GetParallelWorld (G4int i) const

Additional Inherited Members
Protected Member Functions inherited from G4VUserDetectorConstruction
void	SetSensitiveDetector (const G4String &logVolName, G4VSensitiveDetector *aSD, G4bool multi=false)
void	SetSensitiveDetector (G4LogicalVolume *logVol, G4VSensitiveDetector *aSD)

Detailed Description

Detector construction class using text geometry file and C++ code.

Definition at line 41 of file ExTGDetectorConstructionWithCpp.hh.

Constructor & Destructor Documentation

ExTGDetectorConstructionWithCpp::ExTGDetectorConstructionWithCpp

(

)

Definition at line 40 of file ExTGDetectorConstructionWithCpp.cc.

{
  fMessenger = new G4tgrMessenger;
}

ExTGDetectorConstructionWithCpp::~ExTGDetectorConstructionWithCpp

(

)

Definition at line 46 of file ExTGDetectorConstructionWithCpp.cc.

{
  delete fMessenger;
}

Member Function Documentation

G4VPhysicalVolume * ExTGDetectorConstructionWithCpp::Construct ( void  )

virtual

Implements G4VUserDetectorConstruction.

Definition at line 52 of file ExTGDetectorConstructionWithCpp.cc.

References G4tgbVolumeMgr::AddTextFile(), G4tgbVolumeMgr::FindG4LogVol(), G4NistManager::FindOrBuildMaterial(), G4tgbVolumeMgr::GetInstance(), G4VPhysicalVolume::GetLogicalVolume(), G4NistManager::Instance(), and G4tgbVolumeMgr::ReadAndConstructDetector().

{
  //------------------------------------------------ 
  // Define one or several text files containing the geometry description
  //------------------------------------------------ 
  G4String filename = "g4geom_simple.txt";
  G4tgbVolumeMgr* volmgr = G4tgbVolumeMgr::GetInstance();
  volmgr->AddTextFile(filename);

  //------------------------------------------------ 
  // Read the text files and construct the GEANT4 geometry
  //------------------------------------------------ 
  G4VPhysicalVolume* physiWorld = volmgr->ReadAndConstructDetector();

  //------------------------------------------------ 
  // Build another volume and place it in the text geometry
  //------------------------------------------------ 
  G4Box* solid = new G4Box("mybox",2.,2.,3.);
  
  G4Material* water = G4NistManager::Instance()->FindOrBuildMaterial("G4_Fe");

  G4LogicalVolume* logicVol = new G4LogicalVolume(solid,water,"mybox",0,0,0);

  //----- Place the volume in the world of the text geometry
  G4LogicalVolume* textWorldVol = physiWorld->GetLogicalVolume();

  // NOTE: if you want to place your full text geometry in the C++ geometry,
  //       you should use this G4LogicalVolume and place it in a C++ logical
  //       volume
  new G4PVPlacement(0,               // no rotation
                    G4ThreeVector(0.,-20.,0),  // at (x,y,z)
                    logicVol,        // its logical volume    
                    "myBox1",        // its name
                    textWorldVol,    // its mother  volume
                    false,           // no boolean operations
                    0);              // copy number 
  
  //----- Place the volume inside a volume of the text geometry
  G4LogicalVolume* textSphereVol =
    G4tgbVolumeMgr::GetInstance()->FindG4LogVol("sphere",1);
    new G4PVPlacement(0,             // no rotation
                    G4ThreeVector(0.,0.,0),  // at (x,y,z)
                    logicVol,        // its logical volume    
                    "myBox2",        // its name
                    textSphereVol,   // its mother  volume
                    false,           // no boolean operations
                    1);              // copy number 
  
  return physiWorld;
}

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The documentation for this class was generated from the following files:

• ExTGDetectorConstructionWithCpp.hh
• ExTGDetectorConstructionWithCpp.cc