Developing Drawing Strategies: Part 1 - AutoCAD 2011 and AutoCAD LT 2011: No Experience Required - page 140

The back door is completed. Next, you'll copy and then modify the back door
to form the bathroom door.
Copying objects
As you would expect, the COPY command makes a copy of the objects you select.
You can locate this copy either by picking a point or by entering relative coordi-
nates from the keyboard. For AutoCAD to position these copied objects, you must
designate two points: a base point, which serves as a point of reference for where
the copy move starts, and then a second point, which serves as the ending or des-
tination point for the COPY command.
The copy is moved the same distance and direction from its original position
that the second point is located from the first point. When you know the actual
distance and direction to move the copy, the base point isn't critical because you
specify the second point with relative polar or relative Cartesian coordinates.
But in this situation, you don't know the exact distance or angle to move a copy
of the back door to the bathroom door opening, so you need to choose a base
point for the copy carefully.
In copying this new door and its swing to the back door opening of the cabin,
you must find a point somewhere on the existing door or swing that can be
located precisely on a point at the back door opening. You can choose from two
points: the hinge point and the start point of the door swing. Let's use the hinge
point. You usually know where the hinge point of the new door belongs, so this
is easier to locate than the start point of the arc.
1. Continue using 04A-FPLAY4.dwg , or open it if it's not already open.
2. Click the Copy button on the Home tab ➢ Modify panel of the
Ribbon or enter CO ↵ at the command line.
3. The prompt asks you to select objects to copy. Pick the door and
swing and then press ↵ .
The prompt in the command window reads Specify base point
or [Displacement/mOde]<Displacement>: .
4. Pick the hinge point using the Endpoint osnap.
A copy of the door and swing is attached to the crosshair cursor at
the hinge point (see Figure 4.52), and the prompt changes to Specify
second point or <use first point of displacement>: . You need
to pick where the hinge point of the copied door will be located at the
bathroom door opening.