The UV Transform handle is a universal transform handle for the UV
viewport.

Parameters:

    group_pivot - Whether to use the group centroid as the pivot.
    input       - A group field.  The centroid of this group is used
                  as the default origin.
    onoff       - Whether the handle is enabled, 1 means enable.
    px, py      - The pivot.
    rz          - The angle to rotate, in degrees.
    sx, sy      - The scale factor to apply on each axis.
    trs_order   - The transform/rotate/scale order.
    tx, ty      - The translation to apply.
    xyz_order   - The order to apply the rz orientation in - irrelevant.

See Also: UV Point
