| 摘要 |
<p>PURPOSE:To facilitate the addition of characters, etc., to a basic figure, by providing a registered-figure memory wherein the basic figure is registered together with information on the insertion position of characters, symbols, etc., to be inserted into the basic figure, and a figure display memory storing display contents. CONSTITUTION:When insertion positions (a)-(f)[e.g., (a)-(c): pin number, and (e): IC name to be inserted]of additions are supplied from a keyboard device 1 while a gate circuit is regarded as a basic figure, those pieces of information are stored in a registered-figure memory 5 by a controller 4. Then, the basic figure is expanded and passed through a figure display memory 6 from the memory 5 to obtain the basic figure of the gate circuit on a display part 8 while addition insertion part is blank. When an addition insertion command is supplied from the keyboard device 2, addition insertion position information is read out of the memory 5 and on the basis of the information, a cursor is moved to prescribed positions automatically and successively. Thus, additions, such as characters and symbols, (a)-(f) are inserted into the basic figure.</p> |
