Chapter 11 Modifying Objects
315
Copyright Goodheart-Willcox Co., Inc.
Extending Extending
Use the
EXTEND
command to extend lines, elliptical arcs, rays, open polylines, arcs, and
splines to meet other objects. You cannot extend a closed object because an unconnected
endpoint does not exist. Access the
EXTEND
command, pick as many boundary edges as
necessary, and then press [Enter]. Now pick the objects to extend to the boundary edges.
Preview the operation before extending. To exit, press [Enter]. See Figure 11-18.
Automatic windowing is a quick and effective method for extending multiple objects.
The
EXTEND
command also offers
Crossing
and
Fence
options that provide standard
crossing and fence selection. Figure 11-19 shows using the
Crossing
option to extend multiple
objects. Figure 11-20 shows an example of using the
Fence
option to extend multiple objects.
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].
boundary edge:
The edge to which
objects such as
lines, arcs, and
polylines extend.
EXTEND
Ribbon
Home
Modify
Extend
Type
EXTEND
EX
Figure 11-19.
Selecting objects to extend using the
Crossing
option. Automatic windowing accomplishes
the same task.
Crossing box
Process Result
Selected boundary edge (rectangle)
Figure 11-20.
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 11-18.
Using the
EXTEND
command. Note the
boundary edge.
Select the
boundary edge
Select the object
to extend
Step 1 Step 2 Result