[vtkusers] flipping the scene:(Parity Transform)

[Bill Lorensen]

Bob,
You can use vtkPolyDataTransform, folllowed by a vtkReverseSense

Bill

At 04:13 PM 12/13/00 -0500, Fletcher, Bob (GEAE) wrote:
>I have a scene with many actors. I need to flip the whole scene around,
>replacing z with -z. (Parity Transform).
>
>I tried 
>myactor  SetScale 1 1 -1
>
>The geometry looks ok, but it's all rendered flat black. Without the
>Setscale it's colored by it's scalar value.  Is this some kind of normal
>vector problem? 
>
>I can setScale -1 -1 1, and the colors are ok, but of course it doesn't
>change my geometry!
>
>Is there a better approach? This seemed simplest.  Is ther a Left
>handed/righthanded corrdinate system flag hiding someplace?
>
>Any thoughts?
>
>Bob.
>
>
>
>
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