Graphics Programs Reference
In-Depth Information
S E L E C T I V E L Y R E M O V I N G U N U S E D E L E M E N T S
You use the Purge command to remove unused individual blocks, layers, linetypes, shapes, text
styles, and other drawing elements from a drawing file. To help keep the file size small and to
make layer maintenance easier, you should purge your drawing of unused elements. Bear in
mind, however, that the Purge command doesn't delete certain primary drawing elements—
namely, layer 0, the Continuous linetype, and the Standard text style.
Use these steps to practice using the Purge command:
1. Choose File Open from menu bar, and open the Lobby.dwg sample file.
2. Type PURGE ↵ (or PU ↵) to see a listing of drawing components that can be purged.
3. At the Enter type of unused objects to purge: prompt, type B ↵.
4. At the Enter name(s) to purge <*>: prompt, type BATH ↵↵.
5. Type N ↵ to dismiss verification of names. The Bath block has been deleted from the
drawing.
R E M O V I N G A L L U N U S E D E L E M E N T S
In the preceding exercise, you selected a single block for removal from the Lobby file. If you
want to clear all the unused elements from a file at once, you can select the All option.
Here are the steps:
1. Type PURGE ↵ (or PU ↵) to see a listing of drawing components that can be purged.
2. At the Enter type of unused objects to purge: prompt, type A ↵.
3. Press ↵ at the Enter name(s) to purge <*>: prompt. This will select all names.
4. Press ↵ at the Verify each name to be purged? [Yes/No] <Y>: prompt. You can con-
tinue to type Y ↵ and AutoCAD will display the next unused element still in the drawing.
5. Close and save the Lobby file, and exit AutoCAD.
The Lobby file is now trimmed down to the essential data it needs and nothing else.
PURGING ZERO-LENGTH GEOMETRY AND BLANK TEXT
One of the purge options is to “purge zero-length geometry and empty text objects.” This has long
been on the wish list of AutoCAD users, and it does just what it says: It purges objects that have no
length as well as text objects that do not contain any text.
 
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