Chapter 11 Modifying Objects
323
Copyright Goodheart-Willcox Co., Inc.
NOTE NOTE
You can only lengthen lines and arcs dynamically, and you can only decrease the length
of a spline. AutoCAD stores the last lengthen option as the new default, allowing you
to reuse the same option the next time you access the
LENGTHEN
command.
PROFESSIONAL TIP P R OFESSIONAL TIP
You do not have to select the object before entering one of the
LENGTHEN
command
options, but doing so indicates the current length and, if the object is an arc, the angle.
This is especially helpful when you are using the
Total
option.
Exercise 11-8
www.g-wlearning.com/CAD/
Complete the exercise on the companion website.
Using the SCALE Command U s ing the SCALE Comm a nd
Access the
SCALE
command to proportionately enlarge or reduce the size of objects.
Select objects to scale and then proceed to the next prompt to specify the base point
from which the increase or decrease in size should occur. Scaling occurs away from the
base point for enlargement or toward the base point for reduction. After you specify
the base point, the scale icon appears next to the crosshairs and the selected objects
scale in size as you move the crosshairs. The next step is to specify the scale factor.
NEW
AutoCAD
SCALE
Ribbon
Home
Modify
Scale
Type
SCALE
SC
Figure 11-31.
Using the
Total
option of the
LENGTHEN
command.
Original Object 3.00 Long
Lengthened to 3.75 Long
Shortened to 2.25 Long
Select the object closest to the
end to lengthen or shorten
Figure 11-32.
Using the
DYnamic
option
of the
LENGTHEN
command.
Select the object closest to the
end to lengthen or shorten
Drag from
original endpoint
Original Object
Lengthened Object
Shortened Object
Drag from
original endpoint
Drag line
Drag to new length
Drag to new length