Graphics Programs Reference
In-Depth Information
Figure 9-1:
Pi R squared; circles R round.
Follow these steps to use the CIRCLE command:
1. Click the Home tab on the Ribbon.
The most frequently used commands in AutoCAD are found on the Ribbon's Home
tab.
2. Set an appropriate layer current and set other object properties that you want
applied to the circles that you'll draw.
3. Click the Circle button on the Ribbon's Draw panel or type
C
and press
Enter.
AutoCAD starts the CIRCLE command and prompts you to specify the center point
of the circle. If Dynamic Input is toggled on, press the down-arrow on your key-
board to see the options at the crosshairs. The command line shows
Specify center point for circle or [3P/2P/Ttr (tan tan radius)]:
The prompts show the methods other than “center point plus radius” that you can
use to draw circles in AutoCAD. (No,
tan tan radius
is not a mathematician's
dance.) Look up
CIRCLE command
in the online help if you think you may have a
use for these less-common circle-drawing techniques.
4. Specify the center point by clicking a point or typing coordinates.
Use one of the precision techniques described in Chapter 7 if you're do-
ing real drafting. Object snap, snap, and typing coordinates all work well for specify-
ing the center point.
