/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2003 Robert Osfield 
 *
 * This library is open source and may be redistributed and/or modified under  
 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or 
 * (at your option) any later version.  The full license is in LICENSE file
 * included with this distribution, and on the openscenegraph.org website.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
 * OpenSceneGraph Public License for more details.
*/

#ifndef OSGUTIL_TRISTRIPVISITOR
#define OSGUTIL_TRISTRIPVISITOR 1

#include <osg/NodeVisitor>
#include <osg/Geode>
#include <osg/Geometry>

#include <osgUtil/Export>

namespace osgUtil {

/** A tri stripping visitor for converting Geometry surface primitives into tri strips.
  * The current implemention is based up NVidia's NvTriStrip.
  */
class OSGUTIL_EXPORT TriStripVisitor : public osg::NodeVisitor
{
    public:

        /// default to traversing all children.
        TriStripVisitor()
        {
            setTraversalMode(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN);
        }

        /** convert mesh primitives in Geometry into Tri Strips using
          * NvTriStrip.  Converts all primitive types except points
          * and lines, linestrips which it leaves unchanged.
          */
        static void stripify(osg::Geometry& drawable);

        /// apply stripify method to all geode geometry.
        virtual void apply(osg::Geode& geode);

};

}

#endif