| 摘要 |
<p>PURPOSE:To obtain a plotting system capable of easily and quickly performing re-plotting and not requiring a memory large in capacity by providing a plotting input means, and a transfer means to transfer plotting data from a bit map memory area to the display space of a window. CONSTITUTION:A processing part 4 operates a plotting part 5 by performing the key input of the plotting data from an input means 3 when plotting is performed. In other words, a plotting command C1 is issued from the plotting part 5 to a screen device context 6, and simultaneously, the plotting data is inputted, and after display processing is applied to it, the data is displayed on a display 2. Furthermore, a plotting command C2 is issued from the plotting part 5 also to a memory device context 7. When the re-plotting is performed, the plotting data of a required part is transferred from bit map memory(area) 8 to the display space of the window by the transfer means.</p> |
