G4RTPrimaryGeneratorAction Class Reference

#include <G4RTPrimaryGeneratorAction.hh>

Inheritance diagram for G4RTPrimaryGeneratorAction:

Public Member Functions
	G4RTPrimaryGeneratorAction ()
virtual void	GeneratePrimaries (G4Event *anEvent)
void	SetUp ()
virtual	~G4RTPrimaryGeneratorAction ()

Private Attributes
G4bool	distortionOn
G4ThreeVector	eyeDirection
G4ThreeVector	eyePosition
G4double	headAngle
G4int	nColumn
G4int	nRow
G4ParticleDefinition *	particle_definition
G4double	particle_energy
G4ThreeVector	particle_polarization
G4double	particle_time
G4VPhysicalVolume *	pWorld
G4double	stepAngle
G4ThreeVector	up
G4double	viewSpan
G4double	viewSpanX
G4double	viewSpanY
EInside	whereisit

Detailed Description

Definition at line 40 of file G4RTPrimaryGeneratorAction.hh.

Constructor & Destructor Documentation

G4RTPrimaryGeneratorAction()

G4RTPrimaryGeneratorAction::G4RTPrimaryGeneratorAction

(

)

Definition at line 41 of file G4RTPrimaryGeneratorAction.cc.

{
  G4ThreeVector zero;
  particle_definition = 0;
  particle_energy = 1.0*CLHEP::GeV;
  particle_time = 0.0;
  particle_polarization = zero;
 
  pWorld = 0;
  whereisit = kInside;
 
  nRow = 0;
  nColumn = 0;
  
  eyePosition = zero;
  eyeDirection = zero;
  up = G4ThreeVector(0,1,0);
  headAngle = 0.0;
  viewSpan = 0.0;
  stepAngle = 0.0;
  viewSpanX = 0.0;
  viewSpanY = 0.0;
 
  distortionOn = false;
}

References distortionOn, eyeDirection, eyePosition, CLHEP::GeV, headAngle, kInside, nColumn, nRow, particle_definition, particle_energy, particle_polarization, particle_time, pWorld, stepAngle, up, viewSpan, viewSpanX, viewSpanY, whereisit, and anonymous_namespace{G4CascadeDeexciteBase.cc}::zero.

~G4RTPrimaryGeneratorAction()

G4RTPrimaryGeneratorAction::~G4RTPrimaryGeneratorAction ( )

virtual

Definition at line 67 of file G4RTPrimaryGeneratorAction.cc.

{;}

Member Function Documentation

GeneratePrimaries()

void G4RTPrimaryGeneratorAction::GeneratePrimaries ( G4Event *  anEvent )

virtual

Implements G4VUserPrimaryGeneratorAction.

Definition at line 70 of file G4RTPrimaryGeneratorAction.cc.

{
  // Note: We don't use G4ParticleGun here, as instantiating a G4ParticleGun
  //  object causes creation of UI commands and corresponding UI messenger
  //  that interfare with normal G4ParticleGun UI commands.
 
  // evId = iRow * nColumn + iColumn
  G4int evId = anEvent->GetEventID(); 
  G4int iRow = evId / nColumn;
  G4int iColumn = evId % nColumn;
  G4double angleX = -(viewSpanX/2. - G4double(iColumn)*stepAngle);
  G4double angleY = viewSpanY/2. - G4double(iRow)*stepAngle;
  G4ThreeVector rayDirection;
  if(distortionOn)
  { rayDirection = G4ThreeVector(-std::tan(angleX)/std::cos(angleY),std::tan(angleY)/std::cos(angleX),1.0); }
  else
  { rayDirection = G4ThreeVector(-std::tan(angleX),std::tan(angleY),1.0); }
  G4double cp = std::cos(eyeDirection.phi());
  G4double sp = std::sqrt(1.-cp*cp);
  G4double ct = std::cos(eyeDirection.theta());
  G4double st = std::sqrt(1.-ct*ct);
  G4double gam = std::atan2(ct*cp*up.x()+ct*sp*up.y()-st*up.z(), -sp*up.x()+cp*up.y());
  rayDirection.rotateZ(-gam);
  rayDirection.rotateZ(headAngle);
  rayDirection.rotateUz(eyeDirection);
 
  G4ThreeVector rayPosition(eyePosition);
  if (whereisit != kInside) {
    // Eye position is outside the world, so move it inside.
    G4double outsideDistance = pWorld->GetLogicalVolume()->GetSolid()->
       DistanceToIn(rayPosition,rayDirection);
    if(outsideDistance != kInfinity)
    { rayPosition = rayPosition + (outsideDistance+0.001)*rayDirection; }
    else
    {
      // Ray does not intercept world at all.
      // Return without primary particle.
      return;
    }
  }
  
  // create a new vertex
  G4PrimaryVertex* vertex = new G4PrimaryVertex(rayPosition,particle_time);
 
  // create new primaries and set them to the vertex
  G4double mass = particle_definition->GetPDGMass();
  G4PrimaryParticle* particle = new G4PrimaryParticle(particle_definition);
  particle->SetKineticEnergy( particle_energy );
  particle->SetMass( mass );
  particle->SetMomentumDirection( rayDirection.unit() );
  particle->SetPolarization(particle_polarization.x(),
                            particle_polarization.y(),
                            particle_polarization.z());
  vertex->SetPrimary( particle );
 
  anEvent->AddPrimaryVertex( vertex );
}

References G4Event::AddPrimaryVertex(), cp, distortionOn, eyeDirection, eyePosition, G4InuclParticleNames::gam, G4Event::GetEventID(), G4VPhysicalVolume::GetLogicalVolume(), G4ParticleDefinition::GetPDGMass(), G4LogicalVolume::GetSolid(), headAngle, kInfinity, kInside, nColumn, particle_definition, particle_energy, particle_polarization, particle_time, CLHEP::Hep3Vector::phi(), pWorld, CLHEP::Hep3Vector::rotateUz(), CLHEP::Hep3Vector::rotateZ(), G4PrimaryParticle::SetKineticEnergy(), G4PrimaryParticle::SetMass(), G4PrimaryParticle::SetMomentumDirection(), G4PrimaryParticle::SetPolarization(), G4PrimaryVertex::SetPrimary(), G4InuclParticleNames::sp, stepAngle, CLHEP::Hep3Vector::theta(), CLHEP::Hep3Vector::unit(), up, viewSpanX, viewSpanY, whereisit, CLHEP::Hep3Vector::x(), CLHEP::Hep3Vector::y(), and CLHEP::Hep3Vector::z().

SetUp()

void G4RTPrimaryGeneratorAction::SetUp

(

)

Definition at line 128 of file G4RTPrimaryGeneratorAction.cc.

{
  G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable();
  particle_definition = particleTable->FindParticle("geantino");
  if(!particle_definition)
  {
    G4String msg;
    msg =  " G4RayTracer uses geantino to trace the ray, but your physics list does not\n";
    msg += "define G4Geantino. Please add G4Geantino in your physics list.";
    G4Exception("G4RTPrimaryGeneratorAction::SetUp","VisRayTracer00101",FatalException,msg);
  }
 
  G4TheMTRayTracer* rt = G4TheMTRayTracer::theInstance;
  nRow = rt->nRow;
  nColumn = rt->nColumn;
  eyePosition = rt->eyePosition;
  eyeDirection = rt->eyeDirection;
  viewSpan = rt->viewSpan;
  stepAngle = viewSpan/100.;
  viewSpanX = stepAngle*nColumn;
  viewSpanY = stepAngle*nRow;
  distortionOn = rt->distortionOn;
 
  pWorld = G4TransportationManager::GetTransportationManager()->
        GetNavigatorForTracking()->GetWorldVolume();
  whereisit = pWorld->GetLogicalVolume()->GetSolid()->Inside(eyePosition);
}

References distortionOn, G4TheRayTracer::distortionOn, eyeDirection, G4TheRayTracer::eyeDirection, eyePosition, G4TheRayTracer::eyePosition, FatalException, G4ParticleTable::FindParticle(), G4Exception(), G4VPhysicalVolume::GetLogicalVolume(), G4ParticleTable::GetParticleTable(), G4LogicalVolume::GetSolid(), G4TransportationManager::GetTransportationManager(), G4VSolid::Inside(), nColumn, G4TheRayTracer::nColumn, nRow, G4TheRayTracer::nRow, particle_definition, pWorld, stepAngle, G4TheMTRayTracer::theInstance, viewSpan, G4TheRayTracer::viewSpan, viewSpanX, viewSpanY, and whereisit.

Referenced by G4RTWorkerInitialization::WorkerRunStart().

Field Documentation

distortionOn

G4bool G4RTPrimaryGeneratorAction::distortionOn

private

Definition at line 71 of file G4RTPrimaryGeneratorAction.hh.

Referenced by G4RTPrimaryGeneratorAction(), GeneratePrimaries(), and SetUp().

eyeDirection

G4ThreeVector G4RTPrimaryGeneratorAction::eyeDirection

private

Definition at line 63 of file G4RTPrimaryGeneratorAction.hh.

Referenced by G4RTPrimaryGeneratorAction(), GeneratePrimaries(), and SetUp().

eyePosition

G4ThreeVector G4RTPrimaryGeneratorAction::eyePosition

private

Definition at line 62 of file G4RTPrimaryGeneratorAction.hh.

Referenced by G4RTPrimaryGeneratorAction(), GeneratePrimaries(), and SetUp().

headAngle

G4double G4RTPrimaryGeneratorAction::headAngle

private

Definition at line 65 of file G4RTPrimaryGeneratorAction.hh.

Referenced by G4RTPrimaryGeneratorAction(), and GeneratePrimaries().

nColumn

G4int G4RTPrimaryGeneratorAction::nColumn

private

Definition at line 59 of file G4RTPrimaryGeneratorAction.hh.

Referenced by G4RTPrimaryGeneratorAction(), GeneratePrimaries(), and SetUp().

nRow

G4int G4RTPrimaryGeneratorAction::nRow

private

Definition at line 60 of file G4RTPrimaryGeneratorAction.hh.

Referenced by G4RTPrimaryGeneratorAction(), and SetUp().

particle_definition

G4ParticleDefinition* G4RTPrimaryGeneratorAction::particle_definition

private

Definition at line 51 of file G4RTPrimaryGeneratorAction.hh.

Referenced by G4RTPrimaryGeneratorAction(), GeneratePrimaries(), and SetUp().

particle_energy

G4double G4RTPrimaryGeneratorAction::particle_energy

private

Definition at line 52 of file G4RTPrimaryGeneratorAction.hh.

Referenced by G4RTPrimaryGeneratorAction(), and GeneratePrimaries().

particle_polarization

G4ThreeVector G4RTPrimaryGeneratorAction::particle_polarization

private

Definition at line 54 of file G4RTPrimaryGeneratorAction.hh.

Referenced by G4RTPrimaryGeneratorAction(), and GeneratePrimaries().

particle_time

G4double G4RTPrimaryGeneratorAction::particle_time

private

Definition at line 53 of file G4RTPrimaryGeneratorAction.hh.

Referenced by G4RTPrimaryGeneratorAction(), and GeneratePrimaries().

pWorld

G4VPhysicalVolume* G4RTPrimaryGeneratorAction::pWorld

private

Definition at line 56 of file G4RTPrimaryGeneratorAction.hh.

Referenced by G4RTPrimaryGeneratorAction(), GeneratePrimaries(), and SetUp().

stepAngle

G4double G4RTPrimaryGeneratorAction::stepAngle

private

Definition at line 67 of file G4RTPrimaryGeneratorAction.hh.

Referenced by G4RTPrimaryGeneratorAction(), GeneratePrimaries(), and SetUp().

up

G4ThreeVector G4RTPrimaryGeneratorAction::up

private

Definition at line 64 of file G4RTPrimaryGeneratorAction.hh.

Referenced by G4RTPrimaryGeneratorAction(), and GeneratePrimaries().

viewSpan

G4double G4RTPrimaryGeneratorAction::viewSpan

private

Definition at line 66 of file G4RTPrimaryGeneratorAction.hh.

Referenced by G4RTPrimaryGeneratorAction(), and SetUp().

viewSpanX

G4double G4RTPrimaryGeneratorAction::viewSpanX

private

Definition at line 68 of file G4RTPrimaryGeneratorAction.hh.

Referenced by G4RTPrimaryGeneratorAction(), GeneratePrimaries(), and SetUp().

viewSpanY

G4double G4RTPrimaryGeneratorAction::viewSpanY

private

Definition at line 69 of file G4RTPrimaryGeneratorAction.hh.

Referenced by G4RTPrimaryGeneratorAction(), GeneratePrimaries(), and SetUp().

whereisit

EInside G4RTPrimaryGeneratorAction::whereisit

private

Definition at line 57 of file G4RTPrimaryGeneratorAction.hh.

Referenced by G4RTPrimaryGeneratorAction(), GeneratePrimaries(), and SetUp().

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

• source/visualization/RayTracer/include/G4RTPrimaryGeneratorAction.hh
• source/visualization/RayTracer/src/G4RTPrimaryGeneratorAction.cc