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774 | ChApTer 18 AnnotAting Your Design

When you click the Equality Formula button, you can specify a customized string of values to
best express the intention of the equality. In the example shown in Figure 18.33, the parameters
Number Of Segments, Length Of Segment, and Total Length are selected with suffix symbols to
display the complete result in the dimension string, as shown to the right in the figure.

Figure 18.33
using a customized
equality formula

For any dimension string instance, you can choose from one of three options to display
equality. From the Properties palette, the options are Value, Equality Text, and Equality Formula
(Figure 18.34).

Figure 18.34
Changing the
eQ value on an
instance basis

Customizing Dimension Text
One of the main benefits of dimensions in Revit Architecture is that they cannot be overridden
to display a different length or angle other than what is actually being measured. This may
®
®
come as a shock if you have used Autodesk AutoCAD software in your past experience, but
this restriction is necessary to maintain the integrity of the building information model.

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