metaflightTerrainSourcePager.h

Go to the documentation of this file.

/*******************************************************************************
** Copyright (c) 2013 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/


#pragma once

#include <vantageTerrainImplementation/boundingVolumeTerrainSourcePager.h>
#include <vantageTerrainImplementation/boundingVolumeTerrainSourceTracker.h>
#include <vantageTerrainImplementation/pageInVisitor.h>
#include <vantageTerrainImplementation/surfaceCharacteristicsMap.h>
#include <vantageTerrainImplementation/vantageTerrainImplementationDefines.h>

#include <vrvOsg/DtHierarchicalPagedLod.h>


class DtVantageTerrainEngine;

struct DT_DLL_vantageTerrainImplementation DtMetaflightBoundingInfo
{
   DtNodeBoundingInfoPtr boundingInfo;
   bool boundingInfoFromGeometry; 
};

typedef std::unordered_map<makVrv::DtHierarchicalPagedLod*, DtMetaflightBoundingInfo> DtHierNodeBoundingVolumeMap;

class DT_DLL_vantageTerrainImplementation DtMetaflightTerrainSourcePager : public DtBoundingVolumeTerrainSourcePager
{
public:

   DtMetaflightTerrainSourcePager(DtVantageTerrainEngine* terrainEngine, 
      osg::Group* rootNode, makVrf::DtSurfaceCharacteristicMapConstPtr surfaceCharacterMap);

   virtual ~DtMetaflightTerrainSourcePager() override;

   virtual DtTerrainSourceTracker* createTerrainSourceTracker(DtVantageTerrainEngine*) override;

   virtual bool pageInGeometry(
      const DtTerrainPagingGeometryPtr geometry, DtTerrainIntersectIDType intersectId = 0) override;

   virtual bool pageOutNodes(std::list<DtNodeId>& nodesToRemove) override;

   virtual void updatePageTracker(DtTerrainIntersectIDType intersectId = 0) override;

   virtual DtString type() const override;

   static DtTerrainSourcePager* terrainChooserFunction(osg::Node& node,
      DtVantageTerrainEngine* terrainEngine, makVrf::DtSurfaceCharacteristicMapConstPtr surfaceCharacterMap);

protected:

   class DtMetaflightTerrainVisitor : public DtBoundingVolumeActivePageVisitor
   {
   public:
      DtMetaflightTerrainVisitor();
      virtual ~DtMetaflightTerrainVisitor() override;

      virtual void apply(osg::Group& node) override;

   protected:
      virtual void indent();

   public:
      int myIndentLevel;
   };

protected:
   osg::Group* myRootNode;


   DtHierNodeBoundingVolumeMap myPagedInNodes;
   DtHierNodeBoundingVolumeMap myPagedOutNodes;
   makVrf::DtSurfaceCharacteristicMapConstPtr mySurfaceCharacterMap;
};