[vtkusers] vtkTextActor: fuzziness and other problems

[John Norris]

Hi,

I'm having trouble with vtkTextActor.  In addition to the fuzziness 
which has already been discussed, I can no longer remove a vtkRenderer 
from a window, place it in an offscreen render window to generate a 
series of images, then movie it back to the original "onscreen" window 
if the renderer contains a vtkTextActor.  A vtkTexture maintains a 
pointer to the offscreen render window and references it after the 
window has been destroyed.  I've had to roll back vtkTextActor to 
2006-3-25 and then add HasTranslucentPolygonalGeometry() and 
RenderTranslucentPolygonalGeometry().

I really don't like editing the library directly, and would much prefer 
to use a vtkObjectFactory subclass to register an override for 
vtkTextActor.  Unfortunately, vtkTextActor's SetInput method is not 
virtual, so subclassing isn't really an option.  Is there any chance 
that this method could be changed to virtual?

Thanks,
John
-- 
John Norris
Research Programmer
Center for Simulation of Advanced Rockets
http://www.uiuc.edu/ph/www/jnorris