I’m trying to compute a mode overlap between a field simulated in FDTD and a mode which I’ve calculated in MODE. The problem is that my FDTD simulation is using an anti-symmetric boundary condition, so the monitors record the data in its folded state (i.e. it only records half the domain). When I then import the data into MODE to compute the overlap, the data is still folded, meaning I have an entire mode in MODE but only half a mode from FDTD. Is there any way for me to unfold the data in MODE before computing the overlap, or save the data from FDTD in its unfolded state? I think the picture describes my issue.