BVExplorer.h

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/* $Id:$ */

#ifndef __BOUNDING_VOLUMES_EXPLORER_H
#define __BOUNDING_VOLUMES_EXPLORER_H

#include <esg/explorer/Explorer.h>

/*
 * Explorer returning bounding volumes from given depth of BV hierarchy.
 */

namespace esg {

class OGSCENE_EXPORT BVExplorer : public Explorer {
protected:
    List<Geometry> _boundingVolumes;
    unsigned       _depth;

protected:
    virtual bool _iterate                   (SceneGraphObject&);
    virtual bool _process_leaf              (SceneGraphObject&) {return false;}
    virtual void _accept_new_transformation (const Matrix4&)    {}

public:
    BVExplorer (unsigned depth) : _depth(depth) {}
    virtual ~BVExplorer () { _boundingVolumes.deleteAll(); }

    Geometry* result (void) {
        return _boundingVolumes.remove(_boundingVolumes.firstItem());
    }
};
    
}; // namespace

#endif // __BOUNDING_VOLUMES_EXPLORER_H

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