new_contents: #!/usr/bin/env python
  
  import vtk
  
  def main():
      colors = vtk.vtkNamedColors()
      perlinNoise = vtk.vtkPerlinNoise()
      perlinNoise.SetFrequency(2, 1.25, 1.5)
      perlinNoise.SetPhase(0, 0, 0)
      
      sample = vtk.vtkSampleFunction()
      sample.SetImplicitFunction(perlinNoise)
      sample.SetSampleDimensions(65, 65, 20)
      sample.ComputeNormalsOff()
      
      surface = vtk.vtkContourFilter()
      surface.SetInputConnection(sample.GetOutputPort())
      surface.SetValue(0, 0.0)
      
      mapper = vtk.vtkPolyDataMapper()
      mapper.SetInputConnection(surface.GetOutputPort())
      mapper.ScalarVisibilityOff()
      
      actor = vtk.vtkActor()
      actor.SetMapper(mapper)
      actor.GetProperty().SetColor(colors.GetColor3d("Blue"))
      
      renderer = vtk.vtkRenderer()
      renderWindow = vtk.vtkRenderWindow()
      renderWindow.AddRenderer(renderer)
      interactor = vtk.vtkRenderWindowInteractor()
      interactor.SetRenderWindow(renderWindow)
      
      # Add the actors to the renderer, set the background and size
      renderer.AddActor(actor)
      renderer.SetBackground(colors.GetColor3d("SlateGray")) # Slate Gray
      renderWindow.SetSize(300, 300)
      renderer.ResetCamera()
      renderWindow.Render()
      interactor.Start()
  	
  if __name__ == '__main__':
      main()
  
subject: Create PerlinNoise.py