public void ExtractFeatures()
{
Filter = vtkDataSetSurfaceFilter.New();
Filter.SetInput(Grid);
Filter.Update();
Faces = Filter.GetOutput();
vtkFeatureEdges FeatureEdges = vtkFeatureEdges.New();
FeatureEdges.SetInput(Filter.GetOutput());
FeatureEdges.Update();
FeatureEdges.BoundaryEdgesOn();
FeatureEdges.FeatureEdgesOn();
FeatureEdges.ManifoldEdgesOn();
FeatureEdges.NonManifoldEdgesOn();
// Change Edge color
FeatureEdges.SetColoring(0);
// Update
FeatureEdges.Update();
vtkPolyDataMapper EdgeMapper = vtkPolyDataMapper.New();
EdgeMapper.SetInput(FeatureEdges.GetOutput());
EdgeMapper.ScalarVisibilityOff();
Edges.SetMapper(EdgeMapper);
Edges.GetProperty().SetEdgeColor(0, 0, 0);
Edges.GetProperty().SetColor(0.0, 0.0, 0.0);
Edges.GetProperty().SetLineWidth((float)1.0); // Set default edge thickness
Edges.SetVisibility(0);
}
void GenerateData(ref vtkPolyData input)
{
// Create a sphere
vtkSphereSource sphereSource = vtkSphereSource.New();
sphereSource.Update();
// Remove some cells
vtkIdTypeArray ids = vtkIdTypeArray.New();
ids.SetNumberOfComponents(1);
// Set values
ids.InsertNextValue(2);
ids.InsertNextValue(10);
vtkSelectionNode selectionNode = vtkSelectionNode.New();
selectionNode.SetFieldType((int)vtkSelectionNode.SelectionField.CELL);
selectionNode.SetContentType((int)vtkSelectionNode.SelectionContent.INDICES);
selectionNode.SetSelectionList(ids);
selectionNode.GetProperties().Set(vtkSelectionNode.INVERSE(), 1); //invert the selection
vtkSelection selection = vtkSelection.New();
selection.AddNode(selectionNode);
vtkExtractSelection extractSelection = vtkExtractSelection.New();
extractSelection.SetInputConnection(0, sphereSource.GetOutputPort());
#if VTK_MAJOR_VERSION_5
extractSelection.SetInput(1, selection);
#else
extractSelection.SetInputData(1, selection);
#endif
extractSelection.Update();
// In selection
vtkDataSetSurfaceFilter surfaceFilter = vtkDataSetSurfaceFilter.New();
surfaceFilter.SetInputConnection(extractSelection.GetOutputPort());
surfaceFilter.Update();
input.ShallowCopy(surfaceFilter.GetOutput());
}