Disclosed is a controller including a first control member, a second control member that extends from a portion of the first control member, and a controller processor that is operable to produce a rotational movement output signal in response to movement of the first control member, and a translational movement output signal in response to movement of the second control member relative to the first control member. The rotational movement output signal may be any of a pitch movement output signal, a yaw movement output signal, and a roll movement output signal, and the translational movement output signal may be any of an x-axis movement output signal, a y-axis movement output signal, and a z-axis movement output signal. In exemplary embodiments, the first control member may be gripped and moved using a single hand, and the second control member may be moved using one or more digits of the single hand, thus permitting highly intuitive, single-handed control of multiple degrees of freedom, to and including, all six degrees of rotational and translational freedom without any inadvertent cross-coupling inputs.
