FFT w.r.t time and space

Hi,

I need to convert electro-magntic forces of an electric motor which I get from electrical simulation as shown in left picture (time and space) to a format in right picture (frequency and spatial order) with FFT. Can anybody help? I am very new to Matlab.

Note: Both plots doesn't correspond to same data. I need just the approach.

Thanks in advance.

Srikanth