AutoCAD 2008 User's Guide > Annotate Drawings > Dimensions and Tolerances > Create Dimensions > Create Radial Dimensions > 
Create Radial Dimensions
Concept Procedure Quick Reference
 
 
 

To create centerlines or center marks on an arc or circle

  1. Click Dimension menu Style.
  2. In the Dimension Style Manager, select the style you want to change. Click Modify.
  3. In the Modify Dimension Style dialog box, Lines tab, under Center Marks, select Line in the Type box. The example area reflects your selection.
  4. In the Size box, enter the centerline size.
  5. Click Dimension menu Center Mark.At the Command prompt, enter dimcenter.
  6. Select an arc or a circle.
 Toolbar: Dimension 
 Command entry: DIMCENTER