About Positioning a Foreshortened Extremity Manually

For radius dimensions, you can select the Foreshortened check box by right-clicking the dimension and selecting Properties > Dimension Line tab.

Selecting this check box allows you to transform a radius dimension line into a foreshortened radius dimension line by defining the following parameters:

• Text position: Select the text position as Long Segment or Short Segment.
• Orientation: Select the dimension text orientation as Parallel or Convergent according to the dimension line.
• Angle: Type the value or use the arrows to change the value.
• Ratio: Select the required ratio (short segment/long segment) value from the list.
• Point scale: Type the value or use the arrows to change the value.
• Position extremity point manually: Select this check box if you want to position the extremity point of the foreshortened dimension line manually (in this case, you can move the extremity point using a yellow handle).

You can position the foreshorten extremity in any one of the following ways:

• Freely anywhere without any association: This is non-associative mode and free from restrictions.
• On a linear element that represents the center of the circle: This association is persistent and may be updated each time the referenced element is modified. This is associative mode and only possible under the following conditions:

Element Type	Condition
An axis line	Circle center is coincident with the axis.
An axis of a center line or a thread	Circle center is coincident with this axis.
A 2D line interactively sketched (that is not generated from 3D)	Circle center is coincident with the line.
Any 3D curve whose projection onto view plane consists in a line	Circle center is coincident with the projection of this line onto the view plane.
Any surface whose projection onto view plane consists in a line	Circle center is coincident with the projection of this plane onto the view plane (plane is at least normal to view plane).