I fixed the last remaining unit test failure. I stil need modify the unit tests that Tyler suggested (and add a new unit test for PolySlab._intersections_normal())

Author: jewettaijfc

tests/test_components/test_polyslab.py

@@ -254,7 +254,6 @@ def plot_field(
                 vmax=vmax,
                 cbar_kwargs={"label": field_name},
                 grid=False,
-                swap_axes=swap_axes,
             )
 
             # compute parameters for structures overlay plot
@@ -328,7 +327,6 @@ def plot_field(
                 vmax=vmax,
                 robust=robust,
                 cbar_kwargs={"label": field_name},
-                swap_axes=swap_axes,
             )
 
             # compute plot bounds