[vtkusers] Accessing Scalar Data

[Patrick Lowry]

Greetings,

I suspect that my question has been answered many time and many ways.  I 
have some old Tcl/Tk code using the following command.

   set ptscal [[[[simvol GetOutput] GetPointData] GetScalars] GetScalar $i]

This does not work in VTK 4.0.  The new way to do it is in documentation 
but I just can't see how to recode it in Tcl.  I would appreciate it if 
someone could help me get directly to the correct code.

Thanks,
Patrick