Multigraph uses a heirarchy of Flex objects to construct its graph. If you are working with the Multigraph source code it can be helpful to understand this heirarchy. (This information is only needed if you are working with the Multigraph source code.)
Each graph in Multigraph consists of an instance of the Graph class, which
extends the Flex class mx.core.UIComponent
and
is implemented in the source file Graph.as
. Each Graph object
defines the nested heirarchy of UIComponent objects depicted in
Figure 5.1, “The Scene Graph”. This documentation will eventually contain
more detail about this SceneGraph.