DtScalingAlgorithm.h

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/*****************************************************************************
 * Copyright (c) 2019 MAK Technologies, Inc.
 * All rights reserved.
 *****************************************************************************/

 
#pragma once
 
#include <vrvOsg/vrvOsg.h> 

#include <vrvCore/DtUniqueID.h>
#include <vrvCore/DtObserverObject.h>

#include <osg/Referenced>
#include <osg/Node>
#include <osg/Camera>

#include <string>

namespace makVrv 
{ 
   class DtOsgCullVisitorParameters;
   class DtUnicode;

   class DT_DLL_VRVOSG DtScalingAlgorithm
   {
   public:
      DtScalingAlgorithm();

      virtual ~DtScalingAlgorithm();

      virtual double calculateScale( const DtOsgCullVisitorParameters& info,
         const osg::Camera& camera, const osg::Vec3d& position, 
         double modelRadius, DtUniqueID objectElementId ) const = 0;

      virtual double scaleFactor() const;

      virtual void setScaleFactor(double maxScale);

      virtual double maxScaleFactor() const;

      virtual void setMaxScaleFactor(double maxScale);

   private:
      DtScalingAlgorithm& operator=(const DtScalingAlgorithm& rhs);

      // Unimplemented Copy CTOR
      DtScalingAlgorithm(const DtScalingAlgorithm& orig);

   protected:
      double myScaleFactor;
      double myMaxScaleFactor;
   };
}