[vtkusers] recovering vtkSpheereSource from vtkAssemply, HOW?!

[kent williams]

I don't know what you mean by 'change the allocated spheres.'  If you
mean e.g. change the radius of a sphere in the assembly, if you keep a
pointer to the SphereSource, you can change its radius and call Update
and I believe it will propogate the fact that it has changed up the
pipeline, triggering re-rendering of the view.

If you mean set the actors to use new, different geometry, then you
use vtkCollection::NewIterator() to step through the actors and do
whatever you want to with them.

On Wed, May 27, 2009 at 4:27 AM, Giancarlo Amati
<ilferraresebono at hotmail.it> wrote:
> Hello vtkUsers,
>
> I have a vtkAssembly with 6 actors. each actor refers to a vtkSphereSource.
> Now,
> the AddPart of vtkAssemply takes as input an actor, so i wonder if there is
> any way to recover
> the correspondent vtkSphereSource object allocated, passing through the
> property collection I can get from the vtkAssembly.
> that's because I need to change the allocated spheres.
>
> am I complicating my life or is there any other way to do it?
>
> very kind regards.
> GC
>
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