2011

Table Of Contents
Control the Display of Dimension Units
The numeric values of dimensions can be displayed as a single measurement
or in two measurement systems. In either case, you can control details of how
the numeric values are presented.
The settings for primary units control the display of the dimension values,
including the unit format, the numeric precision, and the decimal separator
style. For example, you can enter the diameter symbol as a prefix, as shown
in the illustration. Any prefix you specify replaces the prefixes normally used
for diameter and radius dimensions (Diameter (unicode 2205 and R,
respectively).
These settings are available on the Primary Units tab of the Dimension Style
Manager.
Control the Display of Alternate Units
You can create dimensions in two systems of measurement simultaneously.
A common use of this feature is to add feet and inches dimensions to drawings
created using metric units. The alternate units appear in square brackets ([ ])
in the dimension text. Alternate units cannot be applied to angular dimensions.
If alternate-units dimensioning is on when you edit a linear dimension, the
measurement is multiplied by an alternate scale value that you specify. This
value represents the number of alternate units per current unit of measurement.
The default value for imperial units is 25.4, which is the number of millimeters
per inch. The default value for metric units is about 0.0394, which is the
number of inches per millimeter. The number of decimal places is specified
by the precision value for alternate units.
For example, for imperial units, if the alternate scale setting is the default
value, 25.4, and the alternate precision is 0.00, the dimension might look like
the following figure.
Control Dimension Values | 1449