[vtkusers] BlankOn/Off calls in vtk 4.4

[maguire]

Hello,

We have applications written under vtk 4.2 which use vtkStructuredGrid's 
BlankingOn() and BlankingOff() calls.  After upgrading to vtk 4.4 these 
calls no longer are available.

Looks like these calls were removed on the shift to 
vtkStructuredVisibilityConstraint.  Any suggestions on how to reproduce 
this functionality?

Thanks,
Mike
-------------

Michael Maguire
Scientific Programmer, Computational Technologies
Reaction Engineering International
E-mail: maguire at reaction-eng.com