| 摘要 |
PROBLEM TO BE SOLVED: To grasp a coated optical fiber where abnormality occurs and an abnormal point position by switching drain groove graphics and the plural coated optical fiber which are overlapped/displayed on a facility drawing so that they are separated and displayed. SOLUTION: When the selection command of 'display form switching' is inputted to an operation input part 111, a display form switching part 114 starts an objective graphic extraction part 115 and extracts graphic data in a monitoring abnormal point from drawing data on a main memory 202. A coordinate conversion part 116 shifts a constitution point coordinates except for the start/end point coordinates of optical fiber graphic data so that it can easily be viewed and it is stored in the main memory 202 again. An attribute number is retrieved from monitoring abnormal point attribute information with an optical fiber number as a key, a monitoring abnormal point graphic data graphic number is obtained, it is specified from the main memory 202 and the coordinates is shifted and is stored again. When the coordinate conversion processing of all extracted optical fiber graphics and monitoring abnormal point graphics is terminated, a display processing part 117 displays the abnormal point position of the coated optical fiber where abnormality occurs.
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