| 摘要 |
PURPOSE:To move an object graphic in real time and in accordance with the movement of a pointing device and to improve the operability of the system by controlling the drawing interval in a movement mode and in proportion to the number of picture elements of the object graphic. CONSTITUTION:The sampling time interval is controlled when a mouse is moved along a locus line 3 in accordance with the number of picture elements of a graphic 2 drawn on a display screen 1, in other words, in accordance with the complicatedness of the graphic 2. That is, the sampling time interval is increased with the complicated graphic 2 having many picture elements, e.g. the graphic 2 set at a position A1 is drawn at a position A5 with skip of sampling positions A2, A3 and A4 and then drawn at the final moving position A9 with skip of the sampling positions A6, A7 and A8. In such a way, the sampling time interval is increased with a complicated graphic and therefore the graphic drawing frequency is reduced. Thus graphic drawing time is extremely shortened and it is possible to follow the quick movement of the mouse in real time. |
