2012

UNDOMARKS
Stores the number of marks placed in the UNDO control stream by the Mark
option.
Erase Objects
There are many ways to delete objects from your drawing and clean up the
display.
Remove Unused Definitions, Styles, and Objects
You can remove unused named and unnamed objects with PURGE. Some of the
unnamed objects you can purge include block definitions, dimension styles,
layers, linetypes, and text styles. With PURGE you can also remove zero-length
geometry and empty text objects.
Delete Duplicate Objects
You can remove duplicate and overlapping lines, arcs, polylines, and segments
of these object types with OVERKILL. Set a tolerance value and specify whether
object properties such as layer, color, or plot style are honored or ignored
when comparing suspected duplicate objects. OVERKILL also provides a
method to consolidate objects.
Clean Up the Display
You can remove stray pixels that are left over from some editing operations
from the display area with the REGEN or REGENALL commands.
See also:
■
Correct Mistakes on page 625
To erase an object
1 Click Home tab ➤ Modify panel ➤ Erase.
2 At the Select Objects prompt, use a selection method to select the objects
to be erased or enter an option:
■ Enter L (Last) to erase the last object drawn.
■ Enter p (Previous) to erase the last selection set.
628 | Chapter 18 Select and Modify Objects