| 摘要 |
PROBLEM TO BE SOLVED: To guarantee the coherence of the change of corresponding elements between hierarchies, to automatically generate the drawing of one hierarchy from the drawing of the other hierarchy, to improve the reliability of the drawing preparation, and to save manpower in a method for supporting hierarchical drawing design. SOLUTION: When a relay 210 is generated by an upper layer drawing 150, an object (1) 218 is generated, and a relay 215 corresponding to a lower layer 160 is displayed in a detail display attitude by this object (1). Element designation is made unitary in the object, and when the designation of the relay is changed in one hierarchy, the designation of the other relay is changed. Also, when an element Timer (1) 240 is eliminated in the upper layer, a corresponding object (4) 248 is eliminated, and a Timer (1) 245 referring to this is eliminated while being linked with this. An element 205 necessary in the detail drawing of the lower layer is not necessary in the rough drawing of the upper layer, and shielded by turning a visible attribute into an invisible one. Both top-down from the upper layer and bottom-up from the lower layer are available for the design. |
