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#ifndef VTK_MESH_SUBDIVISION_H_
#define VTK_MESH_SUBDIVISION_H_

#include <pcl/surface/processing.h>
#include <pcl/surface/vtk_smoothing/vtk.h>

namespace pcl
{
  /** \brief PCL mesh smoothing based on the vtkLinearSubdivisionFilter, vtkLoopSubdivisionFilter, vtkButterflySubdivisionFilter
    * depending on the selected MeshSubdivisionVTKFilterType algorithm from the VTK library.
    * Please check out the original documentation for more details on the inner workings of the algorithm
    * Warning: This wrapper does two fairly computationally expensive conversions from the PCL PolygonMesh
    * data structure to the vtkPolyData data structure and back.
    */
  class PCL_EXPORTS MeshSubdivisionVTK : public MeshProcessing
  {
    public:
      /** \brief Empty constructor */
      MeshSubdivisionVTK ();

      enum MeshSubdivisionVTKFilterType
      { LINEAR, LOOP, BUTTERFLY };

      /** \brief Set the mesh subdivision filter type
        * \param[in] type the filter type
        */
      inline void
      setFilterType (MeshSubdivisionVTKFilterType type)
      {
        filter_type_ = type;
      };

      /** \brief Get the mesh subdivision filter type */
      inline MeshSubdivisionVTKFilterType
      getFilterType ()
      {
        return filter_type_;
      };

    protected:
      void
      performProcessing (pcl::PolygonMesh &output);

    private:
      MeshSubdivisionVTKFilterType filter_type_;

      vtkSmartPointer<vtkPolyData> vtk_polygons_;
  };
}
#endif /* VTK_MESH_SUBDIVISION_H_ */
