| 摘要 |
PURPOSE:To facilitate an operation for displaying necessary information, and also, to efficiently execute a work for editing a display screen, with regard to the controller of a screen display. CONSTITUTION:This controller is provided with a display data storage means 10 for storing plural of display data and scale magnification which becomes a discrimination limit of each display data, and a display means 12 which superposes plural display data stored in the display data storage means 10 and displays them graphically in accordance with display magnification designated by an operator, and displays only the display data in which scale limit magnification of the data is smaller than the display magnification by the operator. |
