Akram Akrout akram.akrout

I am asking if using the model as is with FDTD as provided on the example. 
i run the example. I obtain the new design with litho effect through the script provided in the example. 
actually once I got this gds file with litho effect, then how to obtain the transmission spectrum? 
the example as is, is capable to do that or I should develop my own in separate project to obtain those results. 
The script sweeping the corrugation provide figure for bandwidth versus corrugation and band gap center versus corrugation. I think the example is capable to provide transmission versus wavelength but I don't know how.

if the example is capable to do that could you please guide me to do it.