[vtkusers] vtkassembly

[David Doria]

On Mon, Sep 6, 2010 at 3:42 AM, Denis Martin <dm at wicam.com> wrote:
> Dear VTK users,
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> i need some sample or explanation about using of vtkassembly.
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> Even some sample or explanation about parent- child vtkobject.
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> If somebody can help.
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> Thank you

The documentation says "create hierarchies of vtkProp3Ds" but the only
thing I see to do is AddPart which seems to just make a collection,
not a hierarchy.

All of the examples simply show:

assembly = vtk.vtkAssembly()
assembly.AddPart(cylinderActor)
assembly.AddPart(sphereActor)

Can anyone explain how this is a hierarchy? I would expect to see
something like:

body = vtk.vtkAssembly()
arm = body.AddPart(armActor)
hand = arm.AddPart(bodyActor)

or something like that?

David