| 摘要 |
<p>PURPOSE:To continuously perform optional oblique movement and automatic centering display operation by automatically moving a position, which is specified with a keyboard or a pointing device such as a mouse, to the center of a display screen at all times. CONSTITUTION:When there is an automatic centering display instruction to an input control part 2 from the keyboard or pointing device such as the mouse, a centering control part 7 moves the data address of image data, stored in an image frame memory 4, up or down and right or left at the same time by an address quantity calculated from the position specified with the pointing device and the center position of the screen to display the point on a display device 6 by using a display control part 5.</p> |
