terrainSourceChooser.h

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/*******************************************************************************
** Copyright (c) 2022 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/


#pragma once

#include <osg/NodeVisitor>
#include <list>
#include "vantageTerrainImplementation/vantageTerrainImplementationDefines.h"
#include "vantageTerrainImplementation/vantageTerrainImplementationCreator.h"
#include <vlutil/vlFilename.h>

class DtTerrainSourcePager;
class DtVantageTerrainEngine;
class DtTerrainInterfaceConfig;

class DT_DLL_vantageTerrainImplementation DtTerrainSourceChooser : public osg::NodeVisitor
{
public:
   DtTerrainSourceChooser(
      DtVantageTerrainEngine* terrainEngine,
      makVrf::DtSurfaceCharacteristicMapConstPtr surfaceCharacterMap);

   virtual ~DtTerrainSourceChooser();

   void setChooserFunctions(const std::list<DtTerrainChooserFunction>& fcnList);
   
   void setName(const DtString&);

   void setGeometricError(float value);
   float geometricError() const;

private:
   DtTerrainSourceChooser();

public:

   virtual void apply(osg::Node& node);
   virtual void apply(osg::PositionAttitudeTransform& node);
   virtual void apply(osg::MatrixTransform& node);
   virtual void apply(osg::CoordinateSystemNode& node);
   virtual void apply(osg::Drawable& node);

   virtual const std::list<DtTerrainSourcePager*>& instantiatedPagers() const;

protected:
   std::list<DtTerrainChooserFunction> myChooserFunctions;
   std::list<DtTerrainSourcePager*> myInstantiatedPagers;
   DtVantageTerrainEngine* myTerrainEngine;      
   makVrf::DtSurfaceCharacteristicMapConstPtr mySurfaceCharacterMap;
   DtString myName;
   float myGeometricError;
   osg::Matrix myMatrix;
};