2004

Attach, Update, and Bind External References | 669
6 Enter values for Insertion Point, Scale, and Rotation, or select Specify On-
Screen to use the pointing device.
7 Click OK.
You can also attach an xref by dragging or by selecting Attach as Xref from
the shortcut menu.
8 Click OK.
Standard toolbar
Command line
ADCENTER
Nest and Overlay External References
Xrefs can be nested within other xrefs: that is, you can attach an xref that
contains another xref. You can attach as many copies of an xref as you want,
and each copy can have a different position, scale, and rotation.
In the following illustration, master.dwg references a.dwg and b.dwg. Drawing
a.dwg references c.dwg. In master.dwg, c.dwg is a nested xref.
You can also overlay an xref on your drawing. Unlike an attached xref, an
overlaid xref is not included when the drawing is itself attached or overlaid
as an xref to another drawing. Overlaid xrefs are designed for data sharing in
a network environment. By overlaying an xref, you can see how your draw-
ing relates to the drawings of other groups without changing your drawing
by attaching an xref.
In the following illustration, several people are working on drawings refer-
enced by master.dwg. The person working on a.dwg needs to see the work
being completed by the person working on b.dwg, but does not want to xref
b.dwg because it would then appear twice in master.dwg. Instead, the person
overlays b.dwg, which is not included when a.dwg is referenced by master.dwg.
master.dwg a.dwg c.dwg
b.dwg