2012

You use reference parameters as a convenient way to display measurements
that you would otherwise have to calculate. For example, the width in the
illustration is constrained by the diameter constraint, dia1, and the linear
constraint, d1. The reference parameter, d2, displays the total width but does
not constrain it. The textual information in reference parameters is always
displayed within parentheses.
You can set the Reference property in the Properties palette to convert a
dynamic or annotational constraint to a reference parameter.
NOTE You cannot change a reference parameter back to a dimensional constraint
if doing so would overconstrain the geometry.
To convert associative dimensions to dimensional constraints
1 Click Parametric tab ➤ Dimensional panel ➤ Convert.
2 Select the associative dimensions you want to convert.
3 Press Enter.
To change the dimension name format
1 Select an annotational constraint, right-click in the drawing area, and
click Dimension Name Format.
2 Select Value, Name, or Name and Expression.
The Expression reflects the selected dimension name format.
894 | Chapter 20 Add Constraints to Geometry