Hi friends,

I think I have not explained my problem properly in my last email.  

Actually, I am doing biGlobal linear stability analysis with HalfMode, which yields eigenmode on a 2D plane. Now I want to reconstruct the eigenmode in 3D, which will require inverse Fourier transform.  I have check one of the examples in the manual for the Floquet analysis of a of flow past a cylinder. There is a plot for the eigenmode at z=2 [Figure 10.25 of the manual]. 

Thus, I want to know which module is used to convert the eigenmode in 3D.

I would be highly thankful for the comments on this issue.