[vtkusers] Whole extent question

[Marc Ferland]

Hi all,

I have a vtk pipeline that looks like this:

source ==> vtkExtractGrid ==> SomeOtherFilters ==> Mapper ==> Actor ==>
Renderer

I am trying to get back the source whole extent from a function that
only knows about the actor. Is this possible?

When I ask the mapper's executive about the WHOLE_EXTENT, it returns
what I thought to be the UPDATE_EXTENT (the extent that was set to the
vtkExtractGrid with SetVOI()).

Any idea how I can get back the "original" whole extent?

Regards,

Marc