ColorDisconnectedRegions
VTKExamples/CSharp/PolyData/ColorDisconnectedRegions
Description¶
A tutorial on how to setup a Windows Forms Application utilizing ActiViz.NET can be found here: Setup a Windows Forms Application to use ActiViz.NET
Code¶
ColorDisconnectedRegions.cs
using System; using System.Collections.Generic; using System.ComponentModel; using System.Windows.Forms; using System.Diagnostics; using Kitware.VTK; namespace ActiViz.Examples { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void renderWindowControl1_Load(object sender, EventArgs e) { try { ColorDisconnectedRegions(); } catch(Exception ex) { MessageBox.Show(ex.Message, "Exception", MessageBoxButtons.OK); } } private void ColorDisconnectedRegions() { // Create some spheres vtkSphereSource sphereSource1 = vtkSphereSource.New(); sphereSource1.Update(); vtkSphereSource sphereSource2 = vtkSphereSource.New(); sphereSource2.SetCenter(5, 0, 0); sphereSource2.Update(); vtkSphereSource sphereSource3 = vtkSphereSource.New(); sphereSource3.SetCenter(10, 0, 0); sphereSource3.Update(); vtkAppendPolyData appendFilter = vtkAppendPolyData.New(); appendFilter.AddInputConnection(sphereSource1.GetOutputPort()); appendFilter.AddInputConnection(sphereSource2.GetOutputPort()); appendFilter.AddInputConnection(sphereSource3.GetOutputPort()); vtkPolyDataConnectivityFilter connectivityFilter = vtkPolyDataConnectivityFilter.New(); connectivityFilter.SetInputConnection(appendFilter.GetOutputPort()); connectivityFilter.SetExtractionModeToAllRegions(); connectivityFilter.ColorRegionsOn(); connectivityFilter.Update(); // Visualize vtkPolyDataMapper mapper = vtkPolyDataMapper.New(); mapper.SetInputConnection(connectivityFilter.GetOutputPort()); double[] range = connectivityFilter.GetOutput().GetPointData().GetArray("RegionId").GetRange(); mapper.SetScalarRange(range[0], range[1] ); vtkActor actor = vtkActor.New(); actor.SetMapper(mapper); // get a reference to the renderwindow of our renderWindowControl1 vtkRenderWindow renderWindow = renderWindowControl1.RenderWindow; // renderer vtkRenderer renderer = renderWindow.GetRenderers().GetFirstRenderer(); // set background color renderer.SetBackground(0.0, 0.0, 0.0); // add our actor to the renderer renderer.AddActor(actor); } } }