How to change the number of segments within an single arc?

[HarriVihriaelae]

Hello to everyone,

I am making a band in Maxwell. for the inner arc I would need a high number of segments, but the other sides should remain intact. xsection_num_seg does not work. Is there any other method than defining two coaxial circles, subtracting the inner cirlece and splitting the remining ring to a given lenght?

BR,
Harri

points_for_region=[
[r_o+10 ,0 ,0],
[(r_o+10)math.cos(2math.pi/partm/2) ,(r_o+10)math.sin(2math.pi/partm/2) ,0],
[(r_o+10)math.cos(2math.pi/partm) ,(r_o+10)math.sin(2math.pi/partm) ,0],
[(r_i_stator-tooth_h-yoke_h-10)math.cos(2math.pi/partm) ,(r_i_stator-tooth_h-yoke_h-10)math.sin(2math.pi/partm) ,0],
[(r_i_stator-tooth_h-yoke_h-10)math.cos(2math.pi/partm/2) ,(r_i_stator-tooth_h-yoke_h-10)math.sin(2math.pi/partm/2) ,0],
[(r_i_stator-tooth_h-yoke_h-10) ,0 ,0],
[r_o+10 ,0 ,0],
]
line_segments_region = [ "Arc", "Line", "Arc","Line"]
region_id= m2d.modeler.create_polyline(
points_for_region,
segment_type=line_segments_region,
name="Region",
close_surface=True,
cover_surface=True,
)