Autodesk CIVIL3D Tutorial - Page 753
Exercise 1: Attaching Drawings as Xrefs for Annotation
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Attach drawings as Xrefs for annotation 1 Using Windows Explorer, navigate to the tutorial drawings folder (page 819). Select all of the drawings that have names beginning with Labels-. Click Edit menu ➤ Copy. 2 Navigate to the My Civil Tutorial Data folder (page 819). Click Home tab ➤ Clipboard panel ➤ Paste drop-down ➤ Paste. In a later exercise, you will modify some of the externally referenced drawings. To make the modifications, the drawings must be in a location to which you have write access. 3 Open Labels-1a.dwg, which you saved in the My Civil Tutorial Data folder (page 819) in step 2. 4 In Toolspace, on the Prospector tab, expand the Labels-1a drawing. Although a surface with an outside boundary is displayed in the drawing window, notice that the Surfaces collection is empty. The Surfaces collection is empty because the composite surface is an external reference, or Xref. The surface data, which is quite large, exists in a separate drawing. TIP In large projects that have multiple surfaces, each surface object should reside in its own drawing. For example, the existing ground surface should exist in one drawing, with other drawings containing data references to it. For example, the proposed ground surface should exist in its own drawing, with a data reference to the existing ground surface. 5 On the command line, enter XREF. In the External References dialog box, notice the difference in size between the current drawing (Labels-1a) and the externally referenced drawing that contains the surface (Labels-Surface). While the surface object appears in the current drawing, the size of the current drawing is a fraction of the surface drawing. Using Xrefs, you can use data from another drawing without actually inserting the data. 6 In the External References palette, click the arrow next to Attach DWG. NOTE Notice that you can also attach a drawing from Vault. . Click 7 In the Select Reference File dialog box, navigate to the My Civil Tutorial Data folder (page 819). Select the drawings Labels_Alignments.dwg and Labels_Parcels.dwg. Click Open. Exercise 1: Attaching Drawings as Xrefs for Annotation | 741