[vtkusers] VtkFollower: how to follow camera?

[Christian Pöcher]

Am Montag, 30.06.03, um 16:59 Uhr (Europe/Berlin) schrieb Paul 
McGuinness:

>
> Hi,
>
> I am using vtkFollower such that some text follows the camera. I have
> achieved in getting my text to always face the camera as my camera 
> moves,
> but I would like my text to move as the camera moves, such that as my
> camera moves the text will always be in the top corner of my display
> screen, and as I zoom in and out the text will zoom in and out with the
> camera such that the text never changes in size on the screen.
>
It sounds like you would want to use some kind of text that draws on a 
imaginary 2D plane in front of the camera, like it is done with the 
vtkScalarBarActor. There are some classes that do this work, although I 
don't know the name. Perhaps you peek into the documetation for 
vtkTextMapper?