Collapsible Tree Demo

The Collapsible Tree demo shows interactive collapsing and expanding of subtrees of a graph. Using the dedicated helper classes for filtering-out parts of a graph and the tree layout algorithm, implementing such an interactive application is easy.

The main classes used in this demo are FilteredGraphWrapper and TreeLayout.

Things to Try

Click a node with a +/- button to expand or collapse its subtree. Note that there are also leaf nodes which cannot be expanded further.
Select an automatic layout style from the drop down in the toolbar. Choosing a new style, or expanding and collapsing nodes, triggers a refresh of the layout.
Use the zoom and "Fit Content" buttons in the toolbar to focus on local areas or to view the complete graph.