RADIUS

Purpose:

This function calculates the radius of a user-indicated arc or circle entity in the drawing, and generates the complete Dimensioning component automatically.

Instructions:

1. In Dimension menu, click Radius.

2. The user is requested to define the arc or circle from which to create the radius dimensioning. Initially the system asks for an existing arc, but any arc definition mode can be selected from the Geometry Arc definition toolbar.

3. If the type is Knuckled or Cross, the position of the leader must also be given.

4. Once created, the user is requested to create another dimensioning or quit the function. To remove the last created dimensioning, click Edit, then Delete Last Entity.

5. Initially, a dialog showing current dimension controls and parameters is displayed. Changes here can be done before the arc/circle is given.

   

Type

There are three styles available:

• Straight

• Knuckled

• Cross

The straight style need only the arc/circle indication. The radius is presented on a leader line aiming at the arc edge.

The knuckled style consists of a two-segment leader, with the radius presented on a horizontal line. Here another user-given point is required to locate the horizontal part of the leader.

The cross style presents the radius on a leader line from the center of the arc/circle to a point on the arc/circle edge. Here the edge point is indicated by the user. Note that there are four different layouts for the cross style, see the Text and Arrow Layout section below.

Tolerance

The Tolerance group shows the tolerance that will be appended to the resulting dimension text.

• None means no tolerance will be appended

• ± means symmetric tolerance. The value is typed in the field below.

• +/- means unsymmetrical tolerance. The Max and Min values are typed in the two fields below.

Include

The Include group shows what should be included in the resulting dimension text:

• Value - the measured radius.

Text and Arrow Layout

Four different layouts for cross diameter dimensionings are possible:

• Text inside, both arrows inside

• Text inside, both arrows flipped

• Text outside, one arrow flipped

• Text outside, both arrows flipped

Dimension Text

This field controls the format of the resulting dimension text. It is built up by intelligent markers and optionally string constants.

By clicking the Reset button, the contents of the field is reset to system default (only the measured radius prepended by 'R' is presented).

Intelligent markers available:

• #DIM()
  The measured radius

• ~+<symmetric value>
  Symmetric tolerance

• ~+<max value>/<min value>
  Unsymmetrical tolerance

• #/
  New-line separator

  Note: The field is normally not edited by user. However, arbitrary text may be inserted at any position in between the intelligent markers.

Parameters

By selecting the Advanced button the user can view and optionally change any of the remaining parameters controlling the layout of the dimensioning. The parameters are:

• Number of decimal positions in the measured radius.

• Type and size of arrowhead at the end of leader lines.

• Height of dimension text.

• Distance between measure text and leader line.

Blanking

The Blanking group shows current blanking status.

• Blank Out - If checked, model geometry obscured by the resulting dimensioning will be removed.

• Margin - The margin used when obscured model geometry is removed.

Options:

None.

Result:

A complete dimensioning component, containing the leader and the measured radius, is added to the drawing.