HGKeeper

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<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"

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<title>All about the graphs</title>

<para>

There are many graphs in use in this document. All of the graphs

are generated by the graphviz package.

</para>

<sect1>

<title>Object Key</title>

</imageobject>

<para>

All object and interfaces are represented by a rectangle. The

color is used to describe the type of object. In the key above

we see that abstract classes are pale green, concrete classes

are light pink, and interfaces are powder blue.

</para>

</sect1>

<sect1>

<title>Relationship Key</title>

</imageobject>

<para>

Similar to the object key, the relationship key shows how

objects relate to one another. Subclasses point to their

parent class with a solid line with an open arrow. Classes

that implement interfaces point to the interface they're

implementing with a dotted line with an open circle. Classes

that have an instance of another class, are pointed to by that

class with an open diamond.

</para>

</sect1>

</chapter>