G4BoundingSphereScene.hh

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// $Id: G4BoundingSphereScene.hh 81056 2014-05-20 09:02:16Z gcosmo $
//
// 
// 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