public void VTKRender(string filePath) { if (renderer != null) { renderer.Clear(); mapper.RemoveAllInputs(); } renderWindowControl1.Refresh(); reader = new Kitware.VTK.vtkSimplePointsReader(); reader.SetFileName(filePath); reader.Update(); mapper = Kitware.VTK.vtkPolyDataMapper.New(); mapper.SetInputConnection(reader.GetOutputPort()); actor = Kitware.VTK.vtkActor.New(); actor.SetMapper(mapper); actor.SetScale(0.01, 0.01, 0.01); actor.GetProperty().SetPointSize(1); renderwindow = renderWindowControl1.RenderWindow; renderer = renderwindow.GetRenderers().GetFirstRenderer(); renderer.SetBackground(0.3, 0.6, 0.3); renderer.AddActor(actor); renderer.Clear(); renderWindowControl1.Refresh(); }