Visualizing Hierarchical Data
Hierarchical graph layout; Hierarchical visualization; Information visualization on hierarchies; Multilevel visualization;Tree drawing; Visualizing trees
One node, called the root node, has no parent.
All other nodes have exactly one parent.
Nodes with no children are termed leaf nodes. Nodes with children are termed interior nodes.
For all nodes in a tree, there is a single unique path up the tree going from parent to parent’s...