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Chapter 14. Working with Drawings and Ex... > Working with External References Pro...

Working with External References Productively

External references, or xrefs, represent a powerful feature of AutoCAD 2002. They provide the capability to create a composite drawing using other saved drawings, even while those other drawings are being edited. In a multidisciplinary work environment, you can attach another discipline’s drawings to see the impact their design will have on your design. The drawings can be attached temporarily, or inserted permanently as a block. You can permanently insert the entire xref, or just its named objects, such as text styles or dimension styles. You can attach an entire xref or just the portions you need to review. You can even define an irregularly shaped polygon as the clipping boundary for the portion of the xref you want to attach. By attaching small clipped portions of an xref, you can dramatically reduce regen times.

Additionally, AutoCAD 2000 introduced a feature called In-Place Reference Editing, which allows you to edit an attached xref from the current drawing, and save the changes back to the original drawing file. These versatile features make AutoCAD’s xrefs a very powerful tool.


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