| 摘要 |
<p>PURPOSE:To enable to express the extent of erasing processing clearly on the picture in a processing device that makes handwriting input and display by providing a device that sets the position of erasing and the extent of executing erasing by indication from the handwriting inputting device. CONSTITUTION:In a controlling device 3, a command analyzing section 11 starts an erasing execution extent displaying mark controlling section and an erasing processing section 13 when an erasing command is inputted. The erasing execution extent displaying mark controlling section 12 watches approach signals and watching signals outputted from a coordinate detecting section 10, and when an operator brings a pen 2 close to any position on a tablet 1, the approach signal becomes on and coordinate data is read out. An erasing execution extent displaying mark is written in a display data memory 14 based on the data, and the content is displayed on a display unit 4. When the pen 2 moves on the tablet looking at the mark, mark display position is renewed. The processing section 13 erases graphic data of extent of erasing execution on the memory 14 basing on execution indication.</p> |
