The UV Range handle provides a method for describing a UV range to use
as the destination of an operation.  For example, it can be tied to
the uvproject to specify the range options.

Parameters:

    onoff       - Whether the handle is enabled, 1 means enable.
    projtype    - The type of projection to apply.  This also governs
                  the look and behaviour of the handle.
    px, py, pz  - The pivot of the projection orientation
    rx, ry, rz  - The Euler rotations of the projection orientation in
                  degrees.
    sx, sy, sz  - The scale factors of the projection orientation.
    torrad      - The inner radius of toroidial projections.
    trs_order   - The translate/rotate/scale order of the projection
                  orientation.
    tx, ty, tz  - The translation of the projection orientation.
    u0,v0,u1,v1 - The corners of a rectangle in u, v space to apply
                  the projection orientation.
    xyz_order   - The order to combine the rx, ry, and rz rotations.

See Also: UV Project
