The Torus Transformer handle provides an origin and a scale factor in
the three standard axes.  It also has an orient parameter which can
bind to the Torus's orient option, though this doesn't affect the
handle.

Parameters:

    onoff       - Whether the handle is enabled, 1 means enable.
    orient      - The plane of the torus.
    sx, sy, sz  - The scale factors along the three major axes.
    tx, ty, tz  - The origin specified by the handle.

See Also: Sphere Transformer
