Graph
The Graph module supports the creation of graphs in a Drupal site.
Using Graph API
When using Graph API you get the benefits of using views or relation module.
Graphing modules try to extract relational data from Drupal and represent it's graph. In this context a Graph is not a Chart.
The following projects are using http://www.graphviz.org/ to create static visual diagrams.
The following modules generate dynamic visual diagrams using javascript or jquery
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
The Graph module supports the creation of graphs in a Drupal site.
When using Graph API you get the benefits of using views or relation module.