| 摘要 |
The invention includes computer instructions that receive an indication of a manipulation of one or more graphical icons by a user, where the graphical icons are interrelated to one another representing a hierarchical relationship among multiple objects of one or more sheets, and the sheets are included within a drawing by a computer aided design (CAD) application program. The computer instructions operate to automatically modify at least sheet order information included within the objects of the one or more sheets reflecting the hierarchical relationship among the multiple objects of one or more sheets based, at least in part, upon the received indication. As a result, hierarchical information on multiple drawing sheets are dynamically updated when a user modifies the hierachical structure of the drawing sheets by manipulation icons representing the multiple drawing sheets, thereby saving the user effort in tracking the order information and opening each drawing sheet to modify the hierarchical information displayed on the drawing sheets. In one embodiment, the CAD application, including the computer instructions, is embodied in a distribution storage medium.
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