314
AutoCAD and Its Applications—Basics
Copyright Goodheart-Willcox Co., Inc.
NOTE NOTE
To access the
EXTEND
command while using the
TRIM
command, after selecting the
cutting edge(s), hold down
[Shift]
and pick objects to extend to the cutting edge. The
EXTEND
command is described later in this chapter.
Trimming without Selecting a Cutting Edge
To trim objects to the nearest intersection without selecting a cutting edge, access
the
TRIM
command. At the
Select objects or select all:
prompt, press
[Enter]
instead
of picking a cutting edge. Then pick the objects to trim. You can continue selecting
objects to trim without restarting the
TRIM
command. To exit, press [Enter].
Trimming to an Implied Intersection
Use the
Edge
option of the
TRIM
command to trim to an implied intersection.
The
No extend
mode is active by default, and does not allow you to trim objects
that do not intersect. To trim nonintersecting objects, access the
TRIM
command,
pick the cutting edges, and select the
Edge
option followed by the
Extend
option.
AutoCAD now recognizes implied intersections and allows you to pick objects
to trim. See Figure 11-17. Adjusting the
Edge
mode does not change the selected
cutting edges.
NOTE NOTE
Use the
eRase
option of the
TRIM
command to erase unwanted objects, usually objects
that cannot be trimmed. Use the
Undo
option to restore previously trimmed objects
without leaving the command. You must activate the
Undo
option immediately after
performing an unwanted trim. The
Project
option applies to trimming 3D objects, as
explained in AutoCAD and Its Applications—Advanced.
Figure 11-17.
Trimming to an
implied intersection
with the
Extend
mode of the
Edge
option active.
Pick the
cutting edge
Imaginary
extension
of the line
Object trimmed
at this point
Pick object
to trim
Step 1 Step 2 Result
Figure 11-16.
The
Fence
option allows you to select around objects. In this example, the cutting edge
consists of a rectangle drawn using the
RECTANGLE
command.
Step 1 Step 2 Result
Cutting edge
(rectangle)
First pick
point
Fourth pick
point
Second pick
point
Third pick
point Fence line