DtEllipseUpdater.h

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/****************************************************************************** 
** Copyright (c) 2012 MAK Technologies, Inc. 
** All rights reserved. 
******************************************************************************/ 
/****************************************************************************** 
** $RCSfile: DtEllipseUpdater.h,v $ $Revision: 1.19 $ $State: Exp $ 
******************************************************************************/ 
 
 
#pragma once

#include <vrvCore/vrvCore.h>
#include <vrvCore/DtSceneObjectUpdater.h>
#include <matrix/vlTaitBryan.h>

#include <matrix/vlVector.h>

namespace makVrv
{ 
   class DT_DLL_VRVCORE DtEllipseUpdater : public DtSceneObjectUpdater
   { 
   public:

      DtEllipseUpdater(makVrv::DtDe& de, makVrv::DtUniqueID id, bool suppressTick = false );

      virtual ~DtEllipseUpdater();
      
      virtual void update( double simTime );

      virtual void setOrientationDelta(double);

      virtual void setClamped(bool);

      virtual void setPosition(int, const DtVector&);

   protected:

      virtual bool computeGroundClampingHit(const DtVector& up, 
         const DtVector& unclampedPosition, DtVector& hitLocation, DtVector& hitNormal);

      virtual DtTaitBryan computeOrientation( const DtVector& pos, 
         double topoHeading) const;

   protected:
      DtVector myOrigin;
      DtVector myClampedOrigin;

      double myOrientationDelta;

      bool mySceneObjectChanged;
      bool myClamped;
   }; 
}