| 摘要 |
PURPOSE:To provide the drawing display device which can display drawing data at high speed without being affected by the speed of a LAN. CONSTITUTION:This device is provided with a work station 9 to read facility data to be displayed from a server 2 when displaying the prescribed drawing data at a display device 5, to judge whether topographical data to be displayed are stored in a second storage device 10 or not, to read the topographical data from the server 2 when they are not stored, to store them in the second storage device 10, and to display the drawing data by reading the topographical data from the second storage device 10 when they are stored. |
