Node-Link Diagrams

Node-Link diagrams can be used to visualize trees as well.

Some examples:

• file system

  
• sentence-parsing tree
• phylogenetic tree
• indented list
• radial layout (root node in the center)

Issues with Node-Link Diagrams for Trees

• Scalability

  • Node-Links Diagrams do not scale well; they can get too cluttered

  • There is a 1-D growth with increase in data

  • Radial layout scales slightly better than others

• Labeling

  • With more labels, there is more clutter

• Encoding Information can be a little difficult