[vtkusers] simple camera question

[dream_noir]

Dmitri Danewitz-2 wrote:
>  
> Does someone know why sometimes the visualization window is blank, until
> you click on it?
> 

Are you manually moving the camera around using SetPosition and
SetFocalPoint (or with any other methods)? The clipping range of the camera
could be the problem since the item(s) you are visualizing may no longer be
inside that range once you have manually moved the camera. I believe
interactors (or some part of vtk) will automatically resize the clipping
range when you move around using the window interactor, however since if you
are manually moving the camera this automatic resizing won't occur until you
move around with the window interactor (aka. click on the screen).

If that isn't your problem try and be more specific with what exactly you
are doing.

-Kyle Charbonneau
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