[vtkusers] octree visualization example

[Anders Wallin]

Hi all,
I want to represent solid (complicated) objects with an octree (which
can be refined to the desired level).

Is there a minimal VTK-example which shows how to visualize an octree?
Could I write my own octree class and have it interface with
vtkHyperOctreeSurfaceFilter which produces polydata for rendering?

thanks,
AW