WindowDisplay > Anti-Alias > Wireframe Anti-Alias

Toggles anti-aliasing of wireframe lines.

Use this tool to turn anti-aliasing on and off on the wireframe. An anti-aliased wireframe results in crisper and smoother curves and edges, and gives you control over line thickness for both single and double lines. Wireframe anti-aliasing is turned On by default.

Anti-Alias Wireframe Settings

Single Line Width: A value between 0.0 and 2.0 that controls the width of standard wireframe lines. The default is 0.5.
Double Line Width: A value between 0.0 and 2.0 that controls the width of double wireframe lines. The default is 1.0.

Note
Surfaces boundaries are drawn as double lines when you choose ObjectDisplay > Draw Style and set Surface Boundary to DOUBLE
Hardware Anti-Alias: Set this option to 4x or 8x to use hardware anti-aliasing. You need to restart the application for this setting to apply. The default setting is Off.