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Graph Legend This page explains how to interpret the graphs that are generated by doxygen. Consider the following example: /*! Invisible class because of truncation */ class Invisible { }; /*! Truncated class, inheritance relation is hidden */ class Truncated : public Invisible { }; /* Class not documented with doxygen comments */ class Undocumented { }; /*! Class that is inherited using public inheritance */ class PublicBase : public Truncated { }; /*! A template class */ template<class T> class Templ { }; /*! Class that is inherited using protected inheritance */ class ProtectedBase { }; /*! Class that is inherited using private inheritance */ class PrivateBase { }; /*! Class that is used by the Inherited class */ class Used { }; /*! Super class that inherits a number of other classes */ class Inherited : public PublicBase, protected ProtectedBase, private PrivateBase, public Undocumented public Templ<int> { private: Used *m_usedClass; }; If the MAX_DOT_GRAPH_HEIGHT tag in the configuration file is set to 240 this will result in the following graph: The boxes in the above graph have the following meaning: A filled black box represents the struct or class for which the graph is generated. A box with a black border denotes a documented struct or class. A box with a grey border denotes an undocumented struct or class. A box with a red border denotes a documented struct or class forwhich not all inheritance/containment relations are shown. A graph is truncated if it does not fit within the specified boundaries. The arrows have the following meaning: A dark blue arrow is used to visualize a public inheritance relation between two classes. A dark green arrow is used for protected inheritance. A dark red arrow is used for private inheritance. A purple dashed arrow is used if a class is contained or used by another class. The arrow is labeled with the variable(s) through which the pointed class or struct is accessible. A yellow dashed arrow denotes a relation between a template instance and the template class it was instantiated from. The arrow is labeled with the template parameters of the instance.