The following UML class diagram summarizes the relationships
between
IlvGrapher, IlvGraphic, IlvLinkImage,
and IlvLinkConnector. The grapher contains nodes made from
IlvGraphic objects
and links made from IlvLinkImage objects.
Each link has a "from" node and a “to” node. The link
uses the IlvLinkConnector class to calculate
the contact points. Various link connectors with different behavior
are predefined. For example, IlvPinLinkConnector is
a link connector that specifies a number of IlvGrapherPin objects
called pins, that can be at the node as contact points. 
The Classes Related to IlvGrapher