Propagation spectrum

[leSemaleon]

Hello!
Does project have instruments for calculation of propagation spectrum? I mean, does it can calculate pointing vector in some space? and if I run simulation two times, then can get spectrum after division.

Привет!
Имеет ли проект инструментарий для расчета спектра пропускания? Я имею ввиду, есть ли функция для расчета вектора пойнтинга в какой-нибудь области, чтобы я смог провести две симуляции и поделив одно значение на другое получить спектр?

[zer011b]

Propagation spectrum currently can't be calculated automatically by fdtd3d. Currently only Near-To-Far Field (NTFF) transformation can be used to calculate far fields, see --use-ntff, --ntff-filename, --ntff-size and other options in help. It uses Poynting vector internally to do transformations. Please note though that this mode is not tested much, it was implemented just for few experiments. Combining results of few simulations is also not supported. But for all cases you can do post-processing of EM fields manually, because all EM fields can be output as text files.