cutaway view for 3D rendering

["Muz" <mstg_newland@xxxxxxxxxxx>]

Hi,

I am trying to generate a "cutaway" view for a cynlinder in 3D spatial domain. 
The view may look like this:
http://129.237.115.129/cutaway.jpg
I don't have much idea about how to do this. Can anyone give me suggestions?

Thanks a lot!

Muz