Method GetCameraDistance

source/visualization/management/src/G4ViewParameters.cc:131–140

// see, for example, G4OpenGLView::SetView ().)

G4double G4ViewParameters::GetCameraDistance (G4double radius) const {
  G4double cameraDistance;
  if (fFieldHalfAngle == 0.) {
    cameraDistance = radius;
  }
  else {
    cameraDistance = radius / std::sin (fFieldHalfAngle) - fDolly;
  }
  return cameraDistance;
}

G4double G4ViewParameters::GetNearDistance (G4double cameraDistance,
					    G4double radius) const {