Graphics Programs Reference
In-Depth Information
FIGURE 2.18
Selecting the door in
a selection window
Opposite corner of window
First corner of window
8.
Press ↵. This tells AutoCAD that you've finished selecting objects. It's important to
remember to press ↵ as soon as you finish selecting the objects you want to edit. A new
prompt, Specify base point or [Displacement] <Displacement>:, appears. The
cursor changes to its Point Selection mode.
Now you've seen how the selection process works in AutoCAD—but you're in the middle of
the Move command. The next section discusses the prompt that's on your screen and describes
how to enter base points and displacement distances.
P
R O V I D I N G
B
A S E
P
O I N T S
When you move or copy objects, AutoCAD prompts you for a base point, which can be a dif-
ficult concept to grasp. AutoCAD must be told specifically
from
where and
to
where the move
occurs. The
base point
is the exact location from which you determine the distance and direction
of the move. After the base point is determined, you can tell AutoCAD where to move the object
in relation to that point.
Follow these steps to practice using base points:
1.
To select a base point, A-right-click, or if you are using a trackpad, hold A down and tap
with two fingers. The Snap Overrides menu appears, displaying the Object Snap options
(see Figure 2.19).
When you A-right-click or use a two-finger tap with A, make sure the cursor is within
the AutoCAD drawing area; otherwise, you won't get the results described in this topic.
2.
Choose Intersection from the Snap Overrides menu. The Object Snap menu closes.
3.
Move the cursor to the lower-right corner of the door. Notice that as you approach the
corner, a small
X
-shaped graphic appears on the corner. This is called an
Osnap marker
.
4.
After the
X
-shaped marker appears, hold the mouse motionless for a second or two. A
tooltip appears, telling you the current osnap point AutoCAD has selected.
