G4BoundingSphereScene.hh

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// John Allison  7th June 1997
// An artificial scene to reuse G4VScene code to calculate a bounding sphere.
 
#ifndef G4BOUNDINGSPHERESCENE_HH
#define G4BOUNDINGSPHERESCENE_HH
 
#include "G4PseudoScene.hh"
#include "G4VisExtent.hh"
 
class G4VModel;
 
class G4BoundingSphereScene: public G4PseudoScene {
 
public:
 
  G4BoundingSphereScene (G4VModel* pModel = 0);
 
  virtual ~G4BoundingSphereScene ();
 
  G4VisExtent GetBoundingSphereExtent ();
 
  const G4Point3D& GetCentre() const {return fCentre;}
 
  G4double GetRadius() const {return fRadius;}
 
  void SetCentre(const G4Point3D& centre) {fCentre = centre;}
 
  // The following 2 functions can be used by any code which wishes to
  // accrue a bounding sphere.  Just instantiate a
  // G4BoundingSphereScene and use AccrueBoundingSphere.
 
  void ResetBoundingSphere ();
  void AccrueBoundingSphere (const G4Point3D& centre,
                 G4double radius);
 
private:
 
  void ProcessVolume (const G4VSolid& solid);
 
  G4VModel* fpModel;  // Instantiating code may optionally set this.
  G4Point3D fCentre;
  G4double fRadius;
};
 
#endif