[vtkusers] actorCollection=vtkRenderer->GetActors() not returning vtkImageActors?

[David Cole]

vtkRenderer inherits from vtkViewport... Have you tried the vtkViewport 
method RemoveAllViewProps?

One call, no looping. Should do what you're looking for. (I'm assuming 
you're using VTK 5.0 or live CVS...?)

HTH,
David

Mark Gooding wrote:

> Hi all,
>
> I'm trying to remove all the actors from a scene, so I'm using
>
> vtkRenderer->GetActors()
>
> to return and actor collection. I step through this doing
>
> vtkRenderer->RemoveActor(actorCollection->GetLastActor());
>
> This removes all vtkActors that I added to the scene, but not the
> vtkImageActors. Is there a way that I can remove all vtkImageActors
> too? I can remove the image actors if I use a direct pointer to each
> one, i.e.
>
> vtkRenderer->RemoveActor(pointertoactor1)
>
> but I would like to be able just to cycle through whatever is left and
> remove it without eplicitly naming it. Any suggestions?
>
> Interestingly the GetVisibleActorCount() returns the total number of
> actors regardless of type. Seems slightly inconsisted that GetActors()
> only returns one type.
>
> Cheers,
>
> Mark
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