[vtkusers] vtkassembly

[Bill Lorensen]

The "Part" can be an Assembly or an Actor (and subclass of Prop3D).
Think of the Actors as leafs and the Assemblies as nodes in the
hierarchy.

So something like:
vtkAssembly body
vtkAssembly leftArmJoint
vtkAssembly leftWristJoint
vtkActor leftArm
vtkActor leftWrist

body AddPart(leftArmJoint)
leftArmJoint AddPart(leftArm)
leftArmJoint AddPart(leftWristJoint)
leftWristJoint AddPart(leftWrist)

At least this is how I recall it works,

Bill

On Mon, Sep 6, 2010 at 7:46 AM, David Doria <daviddoria+vtk at gmail.com> wrote:
> On Mon, Sep 6, 2010 at 3:42 AM, Denis Martin <dm at wicam.com> wrote:
>> Dear VTK users,
>>
>>
>>
>> i need some sample or explanation about using of vtkassembly.
>>
>> Even some sample or explanation about parent- child vtkobject.
>>
>>
>>
>> If somebody can help.
>>
>>
>>
>> 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
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