Implementation of a User Interface with the Vector General Graphics Display System
A 1977 Naval Postgraduate School thesis by David C. Endicott, distributed through the Defense Technical Information Center, documenting a FORTRAN-based user interface for the Vector General graphics display system. The one picture is a hand-drawn diagram of a simple screen layout labelled Example 1, with two concentric circles, one inside a square frame and one free-floating, above a row of small tick marks. A designer might take from it the plain schematic method of showing interface elements as basic geometric symbols on a blank field.
