_visibility(fgGetNode("/sim/panel/visibility", true)),
_x_offset(fgGetNode("/sim/panel/x-offset", true)),
_y_offset(fgGetNode("/sim/panel/y-offset", true)),
_jitter(fgGetNode("/sim/panel/jitter", true)),
_visibility(fgGetNode("/sim/panel/visibility", true)),
_x_offset(fgGetNode("/sim/panel/x-offset", true)),
_y_offset(fgGetNode("/sim/panel/y-offset", true)),
_jitter(fgGetNode("/sim/panel/jitter", true)),