check for sign=0 case

2025-01-14 21:51:32 -08:00 · 2025-01-14 21:51:32 -08:00 · c543868c0b
commit c543868c0b
parent e54735d9c6
1 changed files with 1 additions and 0 deletions
--- a/meanas/fdfd/waveguide_2d.py
+++ b/meanas/fdfd/waveguide_2d.py
@ -435,6 +435,7 @@ def _normalized_fields(
    sign = numpy.sign(E_weighted[:,
                                 :max(shape[0] // 2, 1),
                                 :max(shape[1] // 2, 1)].real.sum())
+    assert sign != 0

    norm_factor = sign * norm_amplitude * numpy.exp(1j * norm_angle)