VTK/Examples/Python/Outline

import vtk
 
# create a rendering window and renderer
ren = vtk.vtkRenderer()
renWin = vtk.vtkRenderWindow()
renWin.AddRenderer(ren)
 
# create a renderwindowinteractor
iren = vtk.vtkRenderWindowInteractor()
iren.SetRenderWindow(renWin)
 
# create source
source = vtk.vtkConeSource()
source.SetCenter(0,0,0)
source.SetResolution(100)
 
# mapper
mapper = vtk.vtkPolyDataMapper()
mapper.SetInput(source.GetOutput())
 
# actor
actor1 = vtk.vtkActor()
actor1.SetMapper(mapper)
 
# outline
outline = vtk.vtkOutlineFilter()
outline.SetInput(source.GetOutput())
mapper2 = vtk.vtkPolyDataMapper()
mapper2.SetInput(outline.GetOutput())
 
actor2 = vtk.vtkActor()
actor2.SetMapper(mapper2)
 
# assign actor to the renderer
ren.AddActor(actor1)
ren.AddActor(actor2)
 
# enable user interface interactor
iren.Initialize()
renWin.Render()
iren.Start()