Graph manner and its device null of the wall or the beam in the construction figure

摘要

PURPOSE:To facilitate drawing by changing graphics ID of other related wall or beam connected by this mutual relation information when the parameter of the wall or beam is changed. CONSTITUTION:In a RAM 9, a video RAM 9a area is provided, and the graphic of building drawing or the like is displayed on a display 5 by writing graphic data in this video RAM 9a. A file of the utilities drawing stored in a hard disk 1 has a hierarchical structure taking body configuration graphic as element unit. At the CAD program execution, a mutual relation information (pointer) 9b to the wall or beam adjacent each other as the attribute of the wall or beam is provided from among body configuration graphics with hierarchical structure in the RAM 9. When an arbitrary parameter of the wall or beam is changed, the graphic ID of related other wall or beam is also changed based on the mutual relation information.