What is this red box around my FDTD simulation?

fdtd_is_greatfdtd_is_great Member Posts: 5


I'd just finished setting up my simulation when I saw this red box appear around my structure in the CAD view ports. It seems to extend beyond the FDTD region. It isn't an object I created. What is this object, and should I be worried about it? I'm using a broadband TFSF source at an angle, with stabilized PML boundary conditions. I can provide more information if needed to solve this question.

Thank you.


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