SphereTree.h

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/* $Id:$ */

#ifndef __SPEHERE_TREE_H
#define __SPEHERE_TREE_H

#include <esg/spacesorting/BVH.h>

/*
 * Bounding volumes hierarchy employing spheres as volumes.
 */

namespace esg {

class OGSCENE_EXPORT SphereTree : public BVH {
protected:
    virtual bool      _enlarge_bv  (Geometry**, Geometry&);
    virtual Geometry* _create_bv   (List<SceneGraphObject>&);
    virtual Geometry* _create_bv   (Geometry&, Geometry&);
    virtual Geometry* _create_bv   (SceneGraphObject&);
    virtual BVList*   _create_list ();
    
    virtual void _duplicate_attributes (const SDS&);

    SphereTree () {}

public:
    SphereTree (unsigned ll /* leaf limit     */,
                unsigned dl /* depth limit    */,
                bool     dc /* delay creation */,
                BVList::SplitStrategy ss)
        : BVH(ll, dl, dc, ss) {}
    
    virtual SDS* clone () const;
};
    
}; // namespace

#endif //__SPEHERE_TREE_H

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