[vtkusers] flip 2D text

[Tamas Ungi]

Hi,

I am developing an augmented reality system, where the image of the
monitor is looked at through a mirror. Therefore, I need to flip the
texts, but vtkTextActor seems to have only a SetOrientation function,
and I didn't find a way to apply a vtkTransform either.
Could you suggest a way to flip 2D texts on the monitor?

Thank you,
Tamas