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Create Diameter Dimensions

May 20, 2011

      You can create diameter dimensions for circles or arcs to measure their diameters. Creating diameter dimensions resembles creating radial dimensions.

      You can create various diameter dimensions based on the location and size of circles or arc, and the settings of the dimension style. Either drawing a center mark or line is controlled by the dimension style. If the dimension line is created inside a circle or arc, the center mark or line is not drawn. The system variable DIMCEN controls whether the center mark or line is displayed.


To create a diametral dimension

  1.   Choose Dimensions > Diameter.

  2.   Select the arc or circle.

  3.   Specify the dimension line location.

Dimension toolbar\

Command line DIMDIAMETER

\

 

Select the circle (A), and then specify the dimension line location (B). Result

Commands Reference

DIMCENTER: Creates the center mark or the centerlines of circles and arcs

DIMDIAMETER: Creates diameter dimensions for circles and arcs

DIMRADIUS: Creates radial dimensions for circles and arcs

QDIM: Quickly creates a dimension

System Variables Reference

DIMATFIT: Determines how dimension text and arrows are arranged when space is not sufficient to place both within the extension lines

DIMCEN: Controls drawing of circle or arc center marks and centerlines by the DIMCENTER, DIMDIAMETER, and DIMRADIUS commands

DIMJUST: Controls the horizontal positioning of dimension text

DIMTAD: Controls the vertical position of text in relation to the dimension line

DIMTIH: Controls the position of dimension text inside the extension lines for all dimension types except ordinate

DIMTMOVE: Sets dimension text movement rules

DIMTOFL: Controls whether a dimension line is drawn between the extension lines even when the text is placed outside

DIMTOH: Controls the position of dimension text outside the extension lines

DIMUPT: Controls options for user-positioned te 

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