Creating and Modifying Dimensions

There are several dimension tools to display entity measurements or relations between entities.

By default, Dimensions are related to entities. If you modify an entity's geometry, the Dimensions update to reflect the changes.

Dimensions usually consist of:

• A dimension line or arc.
• Extension lines extending to the measured entity.
• Dimension text.

Ordinate Dimensions, Leaders, and geometric tolerances consist of Dimension text and a Leader line.

Dimensions are based on DimensionStyles. DimensionStyles are a named set of defaults that adopt the requirements of specific industries or applications.

This section begins with basics about working with Dimensions:

• Working with DimensionStyles
• Editing and Formatting Dimension Text

You can create the following Dimensions:

• Linear
• Parallel
• Arc length
• Ordinate
• Radius
• Jogged radius
• Diameter
• Angular
• Baseline
• Continuing

The following features annotate the drawing rather than reflect the geometric Dimensions of entities:

• Leaders and SmartLeaders
• Tolerances
• Center Marks

You can modify the appearance of Dimensions:

• Modifying Dimensions
• Overriding DimensionStyle Parameters
• Updating Dimensions
• Relate Dimensions

Most dimension commands are on the Dimension toolbar.