2012

Table Of Contents
Typical uses of arc length dimensions include measuring the travel distance
around a cam or indicating the length of a cable. To differentiate them from
linear or angular dimensions, arc length dimensions display an arc symbol
by default.
The arc symbol, also called a hat or cap, is displayed either above the dimension
text or preceding the dimension text. The placement style can be changed on
the New/Modify Dimension Style dialog box, Symbols and Arrows tab.
The extension lines of an arc length dimension can be orthogonal or radial.
NOTE Orthogonal extension lines are displayed only when the included angle of
the arc is less than 90 degrees.
Modify Existing Dimensions
You can modify all components of the existing dimension objects in a drawing
either individually or by using dimension styles.
Modify A Dimension
Dimensions can be modified to include more information than just the values
of the dimension. Dimensions can also be modified visually by using breaks
and by adjusting the spacing between them.
664 | Chapter 9 Annotate Drawings