The elements of the dimension are not formed into a single object, but separate objects. Why?
If you set the system variable dimassoc as 0, you will meet this situation. In GstarCAD2010, system variable dimassoc supports 01 and 2 0 Create exploded dimensions. There is no association between the various elements of the dimension. The lines, arcs, arrowheads, and text of a dimension are drawn as separate objects. 1 Create non-associative dimension objects. The elements of the dimension are formed into a single object. If one of the definition points of the dimension moves, the dimension is updated. 2 Create associative dimension objects. The elements of the dimension are formed into a single object, and one or more definition points of the dimension are coupled with association points on geometric objects. If the association point on the geometric object moves, the dimension location, orientation, and value are updated.