Connected nodes

A wide variety of drawings are in structure a set of nodes and connections. Some examples are:

• Family trees, or genealogies; phylogenetic trees;
• Software flow diagrams;
• Software call graphs;
• State diagrams;
• Dependency graphs;
• Hierarchies, reporting structures and organisation charts;
• Electrical and electronic schematics;
• Pneumatic and hydraulic schematics;
• Communication network diagrams.