Features
of
the
textbook
4
AutoCAD and Its Applications—Basics
Copyright Goodheart-Willcox Co., Inc.
333
Copyright Goodheart-Willcox Co., Inc.
CHAPTER
Modifying Objects
11 11
Learning Objectives
After completing this chapter, you will be able to:
✓ Use the FILLET command to draw fi llets, rounds, and other radii.
✓ Place chamfers and angled corners with the CHAMFER command.
✓ Form a spline using the BLEND command.
✓ Separate objects using the BREAK command and combine objects using the JOIN
command.
✓ Use the TRIM and EXTEND commands to edit objects.
✓ Change objects using the STRETCH and LENGTHEN commands.
✓ Edit the size of objects using the SCALE command.
✓ Use the EXPLODE command.
AutoCAD includes many editing commands and options to complete common
drafting tasks, improve efficiency, and modify a drawing. This chapter explains
methods of using basic editing commands to change existing objects by changing or
adding geometry. The editing method used in this chapter is to access a command
such as STRETCH and then follow the prompts to complete the operation. Another
technique, presented in Chapter 13, is to select objects fi rst using the crosshairs, then
access the editing command, and fi nally complete the operation.
Using the FILLET Command Using the FILLET Co mmand
Design and drafting terminology refers to a rounded interior corner as a fi llet and
a rounded exterior corner as a round. AutoCAD refers to all rounded corners as fi llets.
The FILLET command draws a rounded corner between intersecting or noninter-
secting lines, arcs, circles, ellipses, polylines, splines, xlines, and rays. See Figure 11-1.
Setting the Fillet Ra adius
Access the FILLET comman nd and then use the Radius option to specify the fi llet
radius.. The radius determines the size of a fi llet and must be set before you select
objectts. AutoCAD stores the radius as the new default, allowing you to place addi-
tional fi llets of the same size.. Once you define the radius, select the fi rst object and then
hover the pick box over the second object preview the operation. The Radius option,
fillet: A rounded
interior corner used
to relieve stress or
ease the contour of
inside corners.
round: A rounded
exterior corner used
to remove sharp
edges or ease the
contour of exterior
corners.
FILLET
Ribbon
Home
Modify
Fillet
Type
FILLET
ROUND
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Copyright Goodheart-Willcox Co ., I n c.
S e tt in g t h e F i ll et R di us
Ac c ess t h e FILLE T c o mm a d a n d t h e n u
r a di u s Th e r a d i u s d e t er mi n e s t h e s i ze o f a
o b je c s. A ut o C A D st o r e s t h e r a d i u s a s t h e n
t i o n a l fi ll e t s o f t h e sa m e s i z e O n c e yo u d e fi n e
h o ve r t h e pi c k b o x o v e r t h e se c o nd o b je c t tto o pr
208
AutoCAD and Its Applications—Basics
Joining Model Viewports
Use the
Join
option to join two viewports. Select the dominant viewport, which is
the viewport that shows the view you want to display in the joined viewport, or press
[Enter]
to select the active viewport. Then select the viewport to join with the dominant
viewport. AutoCAD joins the two viewports together and retains the dominant view.
The two viewports you join cannot create an L-shape viewport. The adjoining edges
of the viewports must be the same size in order to be joined.
Adjusting Model Viewports
Viewport boundaries provide options for resizing, creating, joining, and removing
viewports quickly. Boundary adjustments are made by picking a boundary the
left mouse button and dragging to a specifi
c location. Release the mouse button
complete the operation. Drag a horizontal or vertical viewport boundary, or the inter-
section of three or four viewports, to resize viewports. See
F
igure
6-21Awiththetoa
. To add
viewport, pick the small plus sign (+
) near the edge of a viewport boundary and drag
to display a green splitter bar. See
F
igure 6-21B
. Drag the splitter bar to locate new
viewport boundary. You can also add a viewport by pressing
[Ctrl]
while dragging
a viewport boundary. To join or remove viewports, drag a viewport boundary near
another viewport boundary.
PRO
FESSIONAL TIP PROFESSIONAL TIP
Add named views to templates to recall common displays for repeated
use. Apply a model viewport arrangement to templates to organize
the drawing window for repeated use.
Exercise 6-7
Complete the exercise on the companion website.
www.g-wlearning.com/CAD
-VPORTS
Ribbon
View
Model
Viewports
Join Viewports
Type
-VPORTS
NEW

F
igure 6-21.
Adjusting viewport configurations. A—Drag a horizontal or vertical viewport drag
a boundary intersection to resize viewports. B—Pick the small plus sign
(+Pickboundarytoor
) and drag or press
[Ctrl]
while dragging a boundary to add a viewport.
A BInc.Co.,Goodheart-WillcoxCopyright
and drag
the plus sign
add a viewport
Pick and drag a
viewport boundary
to resize adjacent
viewports
Splitter
(boundary
new
viewport)ofbar
Pick and drag an
intersection to resize
intersecting viewports
Learnin g Objectives
identify key items you will
learn in the chapter.
New Feature Graphics
identify new and updated
features for AutoCAD 2015.
Command Entry
Graphics show ribbon,
Application
Menu, and
keyboard entry options.
llustrations, including
line art illustrations,
AutoCAD “screen shots,”
and illustrated tables, make
learning easy.