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.