User Guide

they do in Metrics Assistance. When these boxes are
checked, any changes to kern pairs involving the members
of that class will cause the other kerning pairs derived from
the class to update automatically.
Here are some examples: You might want to follow along
in Fontographer to get the most out of these explanations.
We will begin with two kerning pairs already
existing—“To” and “Wa:”
When we apply this set of kerning equivalence classes...
...accepting the dialog (by clicking “OK”), produces this:
Fontographer has made the “To” and “Wa” kerning pair
values equivalent. They are both now set at -150. In
addition, Fontographer has also created the “Ta” and “Wo”
kerning pairs below:
In summary, we began with To = -150, Wa = -100. We
ended with To = Wa = Ta = Wo = -150. Since the
characters were all linked, they all became equal.
Next, let’s explore what happens when we change the
status of the Link all checkboxes. We’ll start again from
scratch, with just these two kerning pairs:
Fontographer User's Manual
5: Metrics: Spacing and Kerning Page #26