[vtkusers] Can't move vtkAxesActor with vtkInteractorStyleTrackballActor

[Francois Bertel]

If you look at the hierarchy of vtkProp, you'll see vtkPropAssembly
and vtkAssembly.

On Tue, Jan 12, 2010 at 8:39 AM, David Doria <daviddoria+vtk at gmail.com> wrote:
> On Tue, Jan 12, 2010 at 7:57 AM, Dean Inglis <dean.inglis at camris.ca> wrote:
>>
>> David,
>>
>> I havent tried this, but you can get all the actors that comprise
>> the vtkAxesActor in a vtkPropCollection and then maybe(?) transform
>> them one by one or as a whole.  You can also set a UserTransform
>> through the vtkProp3D API.
>>
>> Dean
>>
>> On Mon, Jan 11, 2010 at 6:34 AM, Karthik Krishnan
>> <karthik.krishnan at kitware.com> wrote:
>>>
>>> The right way to modify the axes actor is to modify the camera. That's
>>> its purpose (to follow the camera).
>>> The trackball actor interactor style doesn't rotate the camera. It
>>> simply changes the transform associated with individual actors as you
>>> interact with them.
>>>
>>
>> Karthik,
>>
>> Yes, that's what I was trying to do - change the transform of the axes
>> actor as I interact with it. I was trying to use it to represent
>> "positioning and aiming" a "camera" in my scene.
>>
>> Is there a better tool to do this? Or is there a way to "unlock" the
>> axes actor so it will move with the trackballActor interactor?
>>
>> Thanks,
>>
>> David
>
> Dean -
>
> I see, so basically we are trying to convert an AxesActor back to a
> normal actor that looks like an axes.
>
> This function already exists:
> vtkSmartPointer<vtkPropCollection> movableAxes =
> vtkSmartPointer<vtkPropCollection>::New();
> axes->GetActors (movableAxes);
>
> But I can't do this:
> renderer->AddActor(movableAxes);
>
> because it only accepts a vtkProp, not a vtkPropCollection. Is there a
> way to combine all the props in a propCollection into a single
> prop/actor?
>
> Thanks,
>
> David
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François Bertel, PhD  | Kitware Inc. Suite 204
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