

		BOUNDARY CONDITIONS ON COMPLEX VIDEO STRUCTURES




	I.  BOUNCE

		In the upper left corner is a video array showing
		tide motions at North Haven, Maine.  The array 
		consists of 10 video frames.  The controlling dimension
		is set to BOUNCE when the boundary is reached.  Pressing
		the forward button causes the tide to rise and fall
		repeatedly, because the display controller changes 
		direction whenever the end of the array is reached.


	II. WRAP

		In the upper right corner is a sunset panorama, an
		array of 8 video frames.  In this example, the 
		controlling dimension is set to WRAP, so the
		forward button causes the display to revolve through
		the series in a clockwise fashion repeatedly.


	III. LIMIT

		The lighthouse sequence is an array of 12 video frames
		of the Rockport Light in Maine.  The display controller
		simply constrains the position to the limits of the 
		underlying dimension.
