Folks, I have used flux commands to output fluxes. When I perform a h5ls operation on a file for a flux propagating in the Z direction, I find 2 variables (large arrays), ex_dft and hy_dft.
The x component of electric field and the y component of magnetic field can be used to find the Poynting vector in the z direction, so I suspect that these arrays are the Fourier transform of the ex and hy components over the flux plane. I have tried to look at the source code to see how ex and hy are defined and generated, but I'm not that conversant in C++. Can anyone tell me if and how I can get the Fourier transform of the field components from a flux file? Thank you, Neal Skinner
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