1 /*
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4  *  Point Cloud Library (PCL) - www.pointclouds.org
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38 
39 #include <pcl/surface/vtk_smoothing/vtk_mesh_quadric_decimation.h>
40 #include <pcl/surface/vtk_smoothing/vtk_utils.h>
41 
42 #include <vtkQuadricDecimation.h>
43 
44 //////////////////////////////////////////////////////////////////////////////////////////////
MeshQuadricDecimationVTK()45 pcl::MeshQuadricDecimationVTK::MeshQuadricDecimationVTK ()
46   : target_reduction_factor_ (0.5f)
47 {
48 }
49 
50 
51 //////////////////////////////////////////////////////////////////////////////////////////////
52 void
performProcessing(pcl::PolygonMesh & output)53 pcl::MeshQuadricDecimationVTK::performProcessing (pcl::PolygonMesh &output)
54 {
55   // Convert from PCL mesh representation to the VTK representation
56   VTKUtils::convertToVTK (*input_mesh_, vtk_polygons_);
57 
58   // Apply the VTK algorithm
59   vtkSmartPointer<vtkQuadricDecimation> vtk_quadric_decimation_filter = vtkSmartPointer<vtkQuadricDecimation>::New();
60   vtk_quadric_decimation_filter->SetTargetReduction (target_reduction_factor_);
61   vtk_quadric_decimation_filter->SetInputData (vtk_polygons_);
62   vtk_quadric_decimation_filter->Update ();
63 
64   vtk_polygons_ = vtk_quadric_decimation_filter->GetOutput ();
65 
66   // Convert the result back to the PCL representation
67   VTKUtils::convertToPCL (vtk_polygons_, output);
68 }
69