FDHTree.h

Go to the documentation of this file.

/* $Id: FDHTree.h,v 1.2 2002/11/05 14:31:15 anonymous Exp $ */

#ifndef __FDH_TREE_H
#define __FDH_TREE_H

#include <esg/Definitions.h>
#include <esg/SceneGraphObject.h>
#include <esg/spacesorting/BVH.h>
#include <esg/geometry/FDH.h>
#include <esg/geometry/BVList.h>

namespace esg {

class OGSCENE_EXPORT FDHTree : 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 Geometry*  _create_bv   (const float*, unsigned);
    virtual BVList*    _create_list ();

    // Attributes _dirs and _fdhMat are not duplicated there because they
    // are constant.
    // Protected constructor is used instead for such purpose.
    virtual void _duplicate_attributes (const SDS&);
    
    const unsigned _dirs;          // Number of directions
    const float    (*_fdhMat)[3];  // FDH matrix
    
    FDHTree (unsigned d, const float (*m)[3]) : _dirs(d), _fdhMat(m) {}
    
public:
    FDHTree (unsigned,            // leaf limit
             unsigned,            // depth limit
             const float(*)[3],   // FDH matrix
             const unsigned,      // number of directions
             bool,                // delay creation
             BVList::SplitStrategy
             );
    
    virtual SDS* clone () const;
};

}; // namespace

#endif // __FDH_TREE_H

---