[vtkusers] how do I traverse the scalars of a vtkImageData?

[Nico Vermaas]

Hi,

To make volume rendering possible I want to convert the scalars in an vtkImageData to unsigned chars. I need to change them and make them range from 0 - 255.
  
I used to use SetScalar, but that doesn't seem to work any longer in VTK4. So what is the best way to traverse the scalar values in a vtkImageData? (getting, changing and setting the values?).

Greetings,

Nico


====================================================
Nico Vermaas
ASTRON - Westerbork Synthesis Radio Telescope
Schattenberg 1 - 9433 TA Zwiggelte - The Netherlands

tel: +31 593 598710                 
vermaas at astron.nl 
====================================================