Tolerances Tab (Dimension Style Manager)

Specifies the display and format of dimension text tolerances.

List of Options

The following options are displayed.

Tolerance Format

Controls the tolerance format.

Method

Sets the method for calculating the tolerance. (DIMTOL system variable)

• None: Does not add a tolerance. The DIMTOL system variable is set to 0.
• Symmetrical: Adds a plus/minus expression of tolerance in which a single value of variation is applied to the dimension measurement. A plus-or-minus sign appears after the dimension. Enter the tolerance value in Upper Value. The DIMTOL system variable is set to 1. The DIMLIM system variable is set to 0.

• Deviation: Adds a plus/minus tolerance expression. Different plus and minus values of variation are applied to the dimension measurement. A plus sign (+) precedes the tolerance value entered in Upper Value, and a minus sign (-) precedes the tolerance value entered in Lower Value. The DIMTOL system variable is set to 1. The DIMLIM system variable is set to 0.

• Limits: Creates a limit dimension. A maximum and a minimum value are displayed, one over the other. The maximum value is the dimension value plus the value entered in Upper Value. The minimum value is the dimension value minus the value entered in Lower Value. The DIMTOL system variable is set to 0. The DIMLIM system variable is set to 1.

• Basic: Creates a basic dimension, which displays a box around the full extents of the dimension. The distance between the text and the box is stored as a negative value in the DIMGAP system variable.

Precision

Sets the number of decimal places. (DIMTDEC system variable)

Upper Value

Sets the maximum or upper tolerance value. When you select Symmetrical in Method, this value is used for the tolerance. (DIMTP system variable)

Lower Value

Sets the minimum or lower tolerance value. (DIMTM system variable)

Scaling for Height

Sets the current height for the tolerance text. The ratio of the tolerance height to the main dimension text height is calculated and stored in the DIMTFAC system variable.

Vertical Position

Controls text justification for symmetrical and deviation tolerances.

• Top: Aligns the tolerance text with the top of the main dimension text. When you select this option, the DIMTOLJ system variable is set to 2.
  

• Middle: Aligns the tolerance text with the middle of the main dimension text. When you select this option, the DIMTOLJ system variable is set to 1.

• Bottom: Aligns the tolerance text with the bottom of the main dimension text. When you select this option, the DIMTOLJ system variable is set to 0.
  

Tolerance Alignment

Controls the alignment of upper and lower tolerance values when stacked

Align Decimal Separators

Values are stacked by their decimal separators.

Align Operational Symbols

Values are stacked by their operational symbols.

Zero Suppression

Controls the suppression of leading and trailing zeros and of feet and inches that have a value of zero. (DIMTZIN 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.

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 1 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'.

Alternate Unit Tolerance

Formats alternate tolerance units.

Precision

Displays and sets the number of decimal places. (DIMALTTD system variable)

Zero Suppression

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

Leading

Suppresses leading zeros in all decimal dimensions. For example, 0.5000 becomes .5000.

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 1 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'.

Preview

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