Using Dimensions - Mastering AutoCAD for Mac - page 351

FIGURE 11.28
A radius dimen-
sion shown on the
inside of the circle
If you need to dimension an arc or a circle whose center isn't in the drawing area, you can use
the jogged dimension. Here are the steps:
1. Click the Jogged tool from the Linear Dimension flyout on the Annotation tool set's
Dimensions tool group, or enter DJO ↵.
2. At the Select arc or circle: prompt, select the object you want to dimension.
3. At the Specify center location override: prompt, select a point that indicates the
general direction to the center of the arc or circle. A dimension line appears and follows
the movement of your cursor.
4. Position the dimension line where you want it, and then click.
5. Position the dimension line jog where you want it, and then click. The jogged dimension
is placed in the drawing (Figure 11.29).
Arc lengths can also be given a dimension using the Arc Length tool. Choose the Arc
Length tool from the Linear Dimension flyout on the Dimensions tool group, or enter DAR ↵
at the Command prompt. At the Select Arc or polyline arc segment: prompt, select the
arc you want to dimension. It can be either a plain arc or a polyline arc. Once you've selected
the arc, the arc dimension appears and moves with the cursor. You can then select the location
for the dimension.