| 摘要 |
<p>PURPOSE:To attain smooth scrolling to a target position by instructing the scrolling of a main screen on a subscreen where the whole diagram is displayed. CONSTITUTION:A mouse 1 is a screen control input means for control the screens. A display device 2 is provided with the main screen where generating operation for a circuit diagram, etc., is performed and the subscreen where the whole figure is reduced and displayed. An area display frame display means 4 displays an area display frame which indicates which area in the whole diagram an area displayed on the main screen corresponds to on the subscreen. An area display frame moving means 3 moves the area display frame displayed on the subscreen attending on the movement of mouse 1. A display altering means 5 makes a display on the main screen so that the contents of the area indicated in the moved area display frame are reflected.</p> |
