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AutoCAD and Its Applications—Basics
Copyright Goodheart-Willcox Co., Inc.
Extending without Selecting a Boundary Edge
To extend objects to the nearest intersection without selecting a boundary edge,
access the
EXTEND
command and, at the
Select objects or select all:
prompt, press
[Enter]
instead of picking a boundary edge. Then pick the objects to extend. You can
continue selecting objects to extend without restarting the
EXTEND
command. To exit,
press [Enter].
Additional Extend Options
The
EXTEND
command includes the same Edge, Undo, and
Project
options as the
TRIM
command, and similar rules apply when using these options with the
EXTEND
command. Use the
Extend
mode of the
Edge
option to extend to an implied intersec-
tion, as shown in Figure 11-23. Select the
Undo
option immediately after performing
an unwanted extend to restore previous objects without leaving the command. The
Project
option applies to extending 3D objects, as explained in AutoCAD and Its
Applications—Advanced.
Figure 11-21.
Selecting objects to extend using the
Crossing
option. Automatic windowing accomplishes
the same task.
Crossing box
Process Result
Selected boundary edge (rectangle)
Figure 11-22.
Extending multiple lines to a boundary edge using the
Fence
option.
Boundary edge (polyline)
Third pick point
Step 1
First
pick point
Second pick point
Fence
line
Step 2 Result
Figure 11-20.
Using the
EXTEND
command. Note the
boundary edge.
Select the
boundary edge
Select the object
to extend
Step 1 Step 2 Result