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It's my first vtk dot net program. How to installation:
 Download vtk .net bin files from http://vtkdotnet.sourceforge.net

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using vtk;

namespace vtkTest
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();

            vtkEarthSource source = new vtkEarthSource();
            vtkPolyDataMapper map = new vtkPolyDataMapper();
            vtkActor actor = new vtkActor();
            vtkRenderer ren = new vtkRenderer();
            vtkRenderWindow win = this.vtkFormsWindowControl1.GetRenderWindow();
            map.SetInput(source.GetOutput());
            actor.SetMapper(map);
            ren.AddActor(actor);
            ren.SetBackground(.5, .5, 1);
            win.AddRenderer(ren);
           
        }
    }
}