source: GTP/trunk/Lib/Vis/Preprocessing/src/SceneGraph.h @ 1958

#ifndef _SceneGraph_H__
#define _SceneGraph_H__

#include <string>
using namespace std;

#include "Containers.h"
#include "AxisAlignedBox3.h"

namespace GtpVisibilityPreprocessor {
  
/** Basic scene graph node, we are interested only in bounding boxes and topology
    of the scene graph 
        */
class SceneGraphNode {
public:
  ObjectContainer mGeometry;
  SceneGraphNodeContainer mChildren;
  AxisAlignedBox3 mBox;
  ~SceneGraphNode();
  void UpdateBox();
};


/** Scene graph class */
class SceneGraph {

public:

        SceneGraph();
        ~SceneGraph();
        
        bool Export(const string filename);
  
        int CollectObjects(ObjectContainer *instances);
  
        int AssignObjectIds();
  
        void GetStatistics(int &intersectables, int &faces) const;

        AxisAlignedBox3 GetBox() const { return mRoot->mBox; }
  
        /** Exports binary version of the scene.
        */
        void ExportScene(const string filename);

        /** Loads binary version of the scene.
        */
        void LoadScene(const string filename);

        SceneGraphNode *GetRoot();

        void SetRoot(SceneGraphNode *sgNnode);


protected:

         SceneGraphNode *mRoot;
};


}

#endif