| 摘要 |
<p>PROBLEM TO BE SOLVED: To eliminate only a desired image even when inputted images are overlapped, to unnecessitate a conventional correction work and to improve operability. SOLUTION: When a color selection button B is pressed in an (a) state, the button B becomes a red display color like (b). When a telephone line is described with a pen, a red telephone line is drawn. When you want to erase the telephone line, only the described telephone line is erased and the original graphic form of a telephone is not influenced when a plot/erasure button A is pressed like (c) to switch to an erasure mode and the telephone line described with the pen is traced. Next, the button A is pressed like (d) to switch to a plotting mode and a new telephone line can be described.</p> |
