Graphing modules try to extract relational data from Drupal and represent it's graph. In this context a Graph is not a Chart.

Static Graph Diagrams

The following projects are using http://www.graphviz.org/ to create static visual diagrams.

• http://drupal.org/project/graphviz_filter
• http://drupal.org/project/graphviz_styles
• http://drupal.org/project/graphviz_noderef
• http://drupal.org/project/views_graphviz
• http://drupal.org/sandbox/damz/1438582
• http://code.google.com/p/drupal-orgchart/

Dynamic Graph Diagrams

The following modules generate dynamic visual diagrams using javascript or jquery

• Graph API
• Graph Phyz
• D3
• thejit

Graph API has views integration and both thejit and D3 support its output.

Graph API also integrated with the Relation module.

Below are module dependencies visualized by The JIT through the views integration of Graph API

And the following is done by graphapi default module