[vtkusers] Window->Image coordinate conversions?

[Bill Lorensen]

In the callback, I think that Caller is a vtkInteractor?

Can you print Caller->GetClassName()?

Bill

On Fri, Oct 23, 2009 at 12:49 PM, David Doria <daviddoria+vtk at gmail.com> wrote:
> On Fri, Oct 23, 2009 at 12:21 PM, Bill Lorensen <bill.lorensen at gmail.com> wrote:
>> After an InitTraveral, NextActor should return the first actor. At
>> least that's what it did 10 years ago.
>>
>> Can you run in a debugger?
>
>
> Of course the one thing I forgot to check for NULL was null...
> RendererCollection is null, so calling InitTraversal on it is
> obviously no good. Did I not cast the render window from caller
> correctly? Why else would this collection be invalid?
>
> Thanks,
>
> David
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