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#include <pcl/surface/vtk_smoothing/vtk_mesh_smoothing_laplacian.h>
#include <pcl/surface/vtk_smoothing/vtk_utils.h>

#include <vtkVersion.h>
#include <vtkSmoothPolyDataFilter.h>


//////////////////////////////////////////////////////////////////////////////////////////////
void
pcl::MeshSmoothingLaplacianVTK::performProcessing (pcl::PolygonMesh &output)
{
  // Convert from PCL mesh representation to the VTK representation
  VTKUtils::convertToVTK (*input_mesh_, vtk_polygons_);

  // Apply the VTK algorithm
  vtkSmartPointer<vtkSmoothPolyDataFilter> vtk_smoother = vtkSmartPointer<vtkSmoothPolyDataFilter>::New ();
  vtk_smoother->SetInputData (vtk_polygons_);
  vtk_smoother->SetNumberOfIterations (num_iter_);
  if (convergence_ != 0.0f)
    vtk_smoother->SetConvergence (convergence_);
  vtk_smoother->SetRelaxationFactor (relaxation_factor_);
  vtk_smoother->SetFeatureEdgeSmoothing (feature_edge_smoothing_);
  vtk_smoother->SetFeatureAngle (feature_angle_);
  vtk_smoother->SetEdgeAngle (edge_angle_);
  vtk_smoother->SetBoundarySmoothing (boundary_smoothing_);
  vtk_smoother->Update ();

  vtk_polygons_ = vtk_smoother->GetOutput ();

  // Convert the result back to the PCL representation
  VTKUtils::convertToPCL (vtk_polygons_, output);
}
