DtEllipseUpdater.h

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/****************************************************************************** 
** Copyright (c) 2017 MAK Technologies, Inc. 
** All rights reserved. 
******************************************************************************/ 
 
 
#pragma once


#include <vrvCore/vrvCore.h>
#include <vrvCore/DtSceneObject.h>
#include <vrvCore/DtTickable.h>
#include <vrvCore/DtUniqueID.h>
#include <matrix/vlTaitBryan.h>

#include <matrix/vlVector.h>

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

      DtEllipseUpdater( makVrv::DtDe& de, makVrv::DtUniqueID id );

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

      virtual void setOrientationDelta(double);

      virtual void setClamped(bool);

      virtual void setPosition(int, const DtVector&);

      virtual void setSceneObject( DtSceneObject* sceneObject );

      virtual bool needsUpdate( DtTime tNow );

      virtual void setUpdaterPosition( int vtx, const DtVector& pos );

      virtual void setUpdaterOrientation( int vtx, const DtTaitBryan& ori );

      virtual void setDynamicOrigin(bool);

   protected:

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

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

      virtual void slot_sceneObjectToBeDeleted( const DtUniqueID& id );

   private:
      DtSceneObject::ObjectTransform& getOrCreateTransform( int vtx );

   protected:
      DtVector myOrigin;
      DtVector myClampedOrigin;

      double myOrientationDelta;

      bool mySceneObjectChanged;
      bool myClamped;

      DtDe& myDe;

      DtUniqueID myUniqueId;

      DtSceneObject* mySceneObject;

      //  When the class is destructed, the scene object may or may not 
      // exist.  Using a separate connection variable makes it possible to
      // 'disconnect' even if the scene object has been deleted.
      boost::signalslib::connection mySceneObjectConnection;

      DtSceneObject::TransformList myTransforms;

      DtTime myLastUpdateTime;

      DtTaitBryan myInitialOrientation;

      bool myDynamicOrigin;
      DtVector myLastAnglePosition;
      DtVector myDynamicOriginPosition;
   }; 
}