Tree Layout Demo
Demonstrates the tree layout style and the different ways in which this layout can arrange
a node and its children.
With tree layout, each node can have a separate
ITreeLayoutNodePlacer which is responsible for the arrangement of its
children in a certain style.
Configure the Node Placers
You can configure the node placer of the selected nodes in the right side panel. Changing
an option in the panel immediately updates the layout of the graph. A preview demonstrates
the chosen subtree style in a smaller context.
- Some node placers offer rotation and mirroring of the subtree.
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Toggle the Assistant marking for a single node by double-clicking on
it. They will show their effect when their parent node has
AssistantNodePlacer assigned.
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DefaultNodePlacer is used for nodes without an explicit assignment.
Sample Graphs
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Default Tree is a regular tree which is arranged using a combination of
LeftRightNodePlacer and DefaultNodePlacer for each
subtree.
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Wide Tree has the same structure as the DefaultTree but is arranged
only using DefaultNodePlacer.
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Category Tree uses DefaultNodePlacer to place the categories in
columns and arranges the nodes of each category stacked left-right.
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General Graph is not a tree and uses the TreeReductionStage to
prepare the graph for TreeLayout. In this sample, non-tree edges are
routed with organic style.
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Large Tree uses CompactNodePlacer for some sub-trees to get a
compact layout.
Change the Graph
Changing the graph in this demo will keep its tree structure intact, and each change will
trigger a layout calculation.
- Add nodes (and edges) by dragging from an unselected node.
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Removing selected nodes will remove their whole subtrees. The root node cannot be
deleted.
- Resize nodes to see how the layout changes.
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Change the order of children by adding number labels using the
F2 key.