ams</h4>
<p>
An <a href="../api/symbols/Overview.html" target="api">Overview</a> is a subclass of <a href="../api/symbols/Diagram.html" target="api">Diagram</a> that is used to display all of the <a href="../api/symbols/Part.html" target="api">Part</a>s
of another diagram and to show where that diagram's viewport is relative to all of those parts.
The user can also scroll the overviewed diagram by clicking or dragging within the overview.
</p>
<p>
The initialization of an <a href="../api/symbols/Overview.ht