Developing Drawing Strategies: Part 1 - AutoCAD 2011 and AutoCAD LT 2011: No Experience Required - page 133

(before the brackets) is the default, and it is the one you want. You
can also expose these options (see Figure 4.44) at the cursor by press-
ing the down arrow on the main keyboard (not the down arrow in the
numeric keypad).

FiGuRE 4.44 T h e RECTANGLE command options exposed at the cursor

You form the rectangle in the same way that you form the zoom
window—by picking two points to represent opposite corners of the
rectangle. In its closed position, the door will fit exactly between the
jambs, with its two right corners coinciding with the rightmost end-
points of the jambs. To make the first corner of the rectangle coincide
with the upper endpoint of the right jamb exactly, you'll use an object
snap to assist you.
Object snaps (or osnaps ) allow you to pick specific points on objects
such as endpoints, midpoints, the center of a circle, and so on. When
the Osnap button is active, the cursor will snap to any of the options
selected in the Object Snap tab of the Drafting Settings dialog box.
These are called running osnaps , and they should be disabled from
the status bar at the moment.

8. Enter END ↵ to specify the Endpoint osnap manually.
Manually specifying an osnap by entering its name at the command
line will override any running osnaps that may be active. For one pick,
your cursor will snap to the nearest endpoint of any line, arc, or polyline
that you select and ignore any running osnaps such as midpoint.

O

osnap is short for
object snap . the
two terms are used
interchangeably.

9. Move the cursor near the right side of the upper jamb line. When the
cursor gets very close to a line, a colored square, called a marker ,
appears at the nearest endpoint along with a tooltip that indicates
which osnap is active, as shown in Figure 4.45. This shows you which
endpoint in the drawing is closest to the position of the crosshair cur-
sor at that moment.