Added JGraphX with sources
Hierarchical Layout with JGraphX in Swing for a predefined, fixed set of
nodes.
A tree of "Node" gets transformed into a tree and displayed in Swing.
Some Refactoring
Some refactoring
Some refactoring
Some refactoring and preparation for FX
Nodes show in FX
Edges show in FX
Refactoring and more complex example
added flag to change the interpretation of children in the tree as inner
nodes or as external children
Start class