A solid ring (torus): a round tube bent into a circle around a center point. The ring lies in the plane perpendicular to the axis.
Center, from a wire; replaces the typed value.
Direction the ring's hole points along; only its heading counts.
Distance from the center to the middle of the tube.
Radius of the tube itself.
Values the block gives besides its output. The editor lists them under Properties, and an input can read one by reference.
The torus as a Solid.
The line the ring turns around.
The point in the middle of the ring.
The ring's axis direction, normal to the plane of the ring.
Distance from the center to the middle of the tube (the major radius).
Radius of the tube itself (the minor radius).
The axis-aligned extent of the torus.
The torus's signed distance, as a field.