Can MayaVi visualize 3D functions in an unstructured grid ?

[A. Novruzi]

Hi, 

I am looking for a free 3D visualization software, running in Linux,
and able to visualize 3D functions in nonstructured mesh (basically,
my mesh is a set of thetraheders used for some 3D FE computations).

Can anyone confirm that indeed MayaVi can visualize 3D functions in
nonstructured mesh? I went through the manuals but I didn't find that
MayVi can do so.

Thank you,
Arian Novruzi