| 摘要 |
<p>PURPOSE:To make easy the graphic processing by conversation format through the use of a light pen, by indicating the indicating point of the designated coordinate on graph displayed on the display with the light pen to detect the display graph represented with the point. CONSTITUTION:The graphic indication information for the graph displayed is indicated, on the graphic display unit 9 from the data processor 8, and the information indicated is expanded into the dot information in graphic shape and displayed on the display section 15 with the raster scan. Then, the dot pattern corresponding to the display screen is formed based on each vector information for the graphic indication information inputted from the control section 11 of the graphic display unit 9. The information expanded into the dot pattern is stored in the dot pattern memory 12 and the information for table including the indicating point coordinate is stored in the table RAM 13. Further, the content of the memory 12 is in raster scan with the display control section 14 to display it on the display section 15 and the display graph represented in the indicated point is detected with the indicating point of the light pen 16 given with the light pen control section 17.</p> |
