Returns true if two loops have the same boundary. This is true if and
only if the loops have the same vertices in the same cyclic order (i.e.,
the vertices may be cyclically rotated). The empty and full loops are
considered to have different boundaries.
Returns true if two loops have the same boundary. This is true if and only if the loops have the same vertices in the same cyclic order (i.e., the vertices may be cyclically rotated). The empty and full loops are considered to have different boundaries.