Primary Units Tab (Dimension Style Manager)

Linear Dimensions

Sets the format and precision for linear dimensions.

Unit Format

Sets the current units format for all dimension types except Angular. (DIMLUNIT system variable)

The relative sizes of numbers in stacked fractions are based on the DIMTFAC system variable (in the same way that tolerance values use this system variable).

Precision

Displays and sets the number of decimal places in the dimension text. (DIMDEC system variable)

Fraction Format

Sets the format for fractions. (DIMFRAC system variable)

Decimal Separator

Sets the separator for decimal formats. (DIMDSEP system variable)

Round Off

Sets nearest rounding value for dimension measurements for all dimension types except Angular. (DIMRND system variable)

If you enter a value of 0.25, all distances are rounded to the nearest 0.25 unit. If you enter a value of 1.0, all dimension distances are rounded to the nearest integer. Take note that the number of digits displayed after the decimal point depends on the Precision setting.

Prefix

Includes a prefix that you specify in the dimension text. (DIMPOST system variable)

You can enter text or use control codes to display special symbols. For example, entering the control code %%c displays the diameter symbol. When you enter a prefix, it overrides any default prefixes such as those used in diameter and radius dimensioning.

If you specify tolerances, the prefix is added to the tolerances as well as to the main dimension.

For more information, see Control Codes and Special Characters.

Suffix

Includes a suffix that you specify in the dimension text. (DIMPOST system variable)

You can enter text or use control codes to display special symbols. For example, entering the text mm results in dimension text similar to that shown in the illustration. When you enter a suffix, it overrides any default suffixes.

If you specify tolerances, the suffix is added to the tolerances as well as to the main dimension.

For more information, see Control Codes and Special Characters.

Measurement Scale

Defines linear scale options. Applies primarily to legacy drawings.

Scale Factor

Sets a scale factor for linear dimension measurements. It is recommended that you do not change this value from the default value of 1.00. (DIMLFAC system variable)

For example, if you enter 2, the dimension for a 1-inch line is displayed as two inches. The value does not apply to angular dimensions and is not applied to rounding values or to plus or minus tolerance values.

Apply to Layout Dimensions Only

Applies the measurement scale factor only to dimensions created in layout viewports. Except when using nonassociative dimensions, this setting should remain unchecked. (DIMLFAC system variable)

Zero Suppression

Controls the suppression of leading and trailing zeros and of feet and inches that have a value of zero. (DIMZIN system variable)

Zero suppression settings also affect real-to-string conversions performed by the AutoLISP^® rtos and angtos functions. (Not applicable to AutoCAD LT.)

Leading

Suppresses leading zeros in all decimal dimensions. For example, 0.5000 becomes .5000. Select leading to enable display of dimension distances less than one unit in sub units.

Sub-units factor

Sets the number of sub units to a unit. It is used to calculate the dimension distance in a sub unit when the distance is less than one unit. For example, enter 100 if the suffix is m and the sub-unit suffix is to display in cm.

Sub-unit suffix

Includes a suffix to the dimension value sub unit. You can enter text or use control codes to display special symbols. For example, enter cm for .96m to display as 96cm.

Trailing

Suppresses trailing zeros in all decimal dimensions. For example, 12.5000 becomes 12.5, and 30.0000 becomes 30.

0 Feet

Suppresses the feet portion of a feet-and-inches dimension when the distance is less than one foot. For example, 0'-6 1/2" becomes 6 1/2".

0 Inches

Suppresses the inches portion of a feet-and-inches dimension when the distance is an integral number of feet. For example, 1'-0" becomes 1'.

Angular Dimensions

Displays and sets the current angle format for angular dimensions.

Units Format

Sets the angular units format. (DIMAUNIT system variable)

Precision

Sets the number of decimal places for angular dimensions. DIMADEC system variable)

Preview

Displays sample dimension images that show the effects of changes you make to dimension style settings.