Disk
A flat circle, generated as a fan of triangles.

The Disk is a flat circle, lying on the XZ plane with the face pointing up. It is the round version of the plane, used as a cap, a coin, a circular base and an area marker on the ground.
Properties
- Radius: Radius of the circle, in meters.
- Radial Seg.: Number of sectors of the circle. It decides whether the border reads as a curve or as a polygon.
Topology
The disk is always a fan of triangles around a central vertex, even when the project prefers quads, because every sector ends at the same point.
Like the plane, it has a face on one side only and disappears when seen from below.