include/vrvOsg/DtPickIntersectionVisitor.h

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/******************************************************************************
** Copyright (c) 2008 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/
/******************************************************************************
** $RCSfile: DtPickIntersectionVisitor.h,v $ $Revision: 1.6 $ $State: Exp $
******************************************************************************/


#pragma once

#include <vrvOsg/vrvOsg.h>
#include <osg/Billboard>
#include <osgUtil/IntersectionVisitor>

#include <vrvOsg/DtOsgCullVisitorParameters.h>

namespace makVrv
{
   class DT_DLL_VRVOSG DtPickIntersectionVisitor
      : public osgUtil::IntersectionVisitor
   {
   public:
      DtPickIntersectionVisitor(osg::Camera* camera,
         osgUtil::Intersector* i = 0, ReadCallback* rc = 0);


      virtual ~DtPickIntersectionVisitor();

      void apply(osg::Billboard& billboard);
      
      void apply(osg::Transform& transform);
      
      osg::Camera* camera() const;
      
   protected:
      osg::Vec3 myEye;
      DtOsgCullVisitorParameters myInfo;
      osg::Camera* myCamera; // need this for Intersector clone
   };
}