include/gdb/ssGdbNodeIntersector.h

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/*********************************************************************
** Copyright (c) 2005 MAK Technologies, Inc.
** All rights reserved.
*********************************************************************/
/*********************************************************************
** $RCSfile: ssGdbNodeIntersector.h,v $ $Revision: 1.7 $ $State: Exp $
*********************************************************************/
#ifndef ssGdbNodeIntersector_H_
#define ssGdbNodeIntersector_H_

#include "gdb/gdbDefines.h"
#include <vlutil/vlConfig.h> 
#include "geometry/spatialSubdivision.h"
#include "geometry/ssFunctor.h"


class DtGdbNode;

//
// The DtSsGdbNodeIntersector class is responsible for knowing how to 
// intersect DtGdbNodes and DtSpatialSubdivisions.
// 
class DT_DLL_gdb DtSsGdbNodeIntersector
{
public:
   // Constructor
   DtSsGdbNodeIntersector();

   // Destructor
   virtual ~DtSsGdbNodeIntersector();

protected:
   // Copy constructor & Assignment operator  - not implemented
   DtSsGdbNodeIntersector(const DtSsGdbNodeIntersector& orig);
   DtSsGdbNodeIntersector& operator=(const DtSsGdbNodeIntersector& orig);

public:

   // Intersects the gdbNode and spatial subdivision.  If the node is of type
   // DtGroup, then it recursively intersects all the nodes children with the
   // spatial subdivision until they are either not a DtGroup node, or are 
   // contained in a single cell.  At that point, the functor is called with the
   // appropriate cells.
   // 
   // @returns a boolean indicating whether or not any intersection occurs.
   virtual bool intersect(DtGdbNode* gdbNode, 
                          DtSpatialSubdivision<DtGdbNode*>& spatialSubdivision,
                          DtSsFunctor<DtGdbNode*, DtSpatialSubdivision<DtGdbNode*>::DtSpatialSubCellType>& functor) const;


};



#endif