Method DescribeYourselfTo

source/visualization/modeling/src/G4GPSModel.cc:73–185

}

void G4GPSModel::DescribeYourselfTo (G4VGraphicsScene& sceneHandler)
// The main task of a model is to describe itself to the graphics scene
// handler (a object which inherits G4VSceneHandler, which inherits
// G4VGraphicsScene).
{
  G4GeneralParticleSourceData* pGPSData = G4GeneralParticleSourceData::Instance();
  // Note: As far as I can see, if this is the first time Instance has been
  // called, it will, nevertheless, instantiate a default source, Type:"Point",
  // Shaep: "NULL", which will be drawn as a small circle at the origin of
  // coordinates whether you have set up GPS or not.  Sorry, can't think of a
  // way to avoid that.  Mostly, of course, you will only invoke this function,
  // if you have - or are about to - set up GPS, in which case all will be well.
  if (!pGPSData) return;

  G4int nSources = pGPSData->GetSourceVectorSize();
  for (G4int iSource = 0; iSource < nSources; ++iSource) {

    const G4SingleParticleSource* pCurrentSingleSource = pGPSData->GetCurrentSource(iSource);
    if (!pCurrentSingleSource) return;

    const G4SPSPosDistribution* pSPSPosDistribution = pCurrentSingleSource->GetPosDist();
    if (!pSPSPosDistribution) return;

    G4String Type = pSPSPosDistribution->GetPosDisType();
    G4String Shape = pSPSPosDistribution->GetPosDisShape();
    // Type can be: Point, Plane, Surface or Volume
    // Shape can be: Square, Circle, Ellipse, Rectangle,
    //    Sphere, Ellipsoid, Cylinder, Parallelepiped
//    G4cout
//    << "G4GPSModel::DescribeYourselfTo"
//    << ": PosDisType: " << Type
//    << ", Shape: " << Shape
//    << G4endl;

    const G4double& halfx = pSPSPosDistribution->GetHalfX();
    const G4double& halfy = pSPSPosDistribution->GetHalfY();
    const G4double& halfz = pSPSPosDistribution->GetHalfZ();
    const G4double& Radius  = pSPSPosDistribution->GetRadius();
    const G4double& Radius0 = pSPSPosDistribution->GetRadius0();
    const G4double& ParAlpha = pSPSPosDistribution->GetParAlpha();
    const G4double& ParTheta = pSPSPosDistribution->GetParTheta();
    const G4double& ParPhi   = pSPSPosDistribution->GetParPhi();

    const G4ThreeVector& Rotx = pSPSPosDistribution->GetRotx();
    const G4ThreeVector& Roty = pSPSPosDistribution->GetRoty();
    const G4ThreeVector& Rotz = pSPSPosDistribution->GetRotz();

    const G4ThreeVector& position = pSPSPosDistribution->GetCentreCoords();
    G4Transform3D transform(CLHEP::HepXHat,CLHEP::HepYHat,CLHEP::HepZHat,Rotx,Roty,Rotz);
    transform = G4Translate3D(position) * transform;

    G4double surfaceTolerance = G4GeometryTolerance::GetInstance()->GetSurfaceTolerance();
    G4double smallHalfThickness = 10.*surfaceTolerance;

    G4VisAttributes gpsAtts;
    gpsAtts.SetColour(fColour);
    gpsAtts.SetForceSolid();