visualization on plan of rhino imported

[Giopas]

Hi to everyone! i have a problem with an imported rhino file.

I see correctly it in front and in 3d model, but in plan the curve wall are horrible, they're zig-zag line (see image attached)!

Why i see this and how i can visualizing it correctly?

Thank you!

[Mjules]

Have you already tried the IFC format? Export it from Rhino using the IFC format and then import the IFC format into Archicad.