In another example, {TAIL ~ a zoom out command} is generated and further transmitted when {HEAD ~ the camera based device} 115 is moved along the axis away from the display device 105 
In another example , { TAIL ~ a zoom out command } is generated and further transmitted when { HEAD ~ the camera based device } 115 is moved along the axis away from the display device 105
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH