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graphviz4j

A Java GraphViz graph builder and parser.

Building GraphViz Graphs

This is designed to be a fluent API for constructing GraphViz graphs.

Multiple subgraphs can be generated into the same GraphVizGraph over the same nodes, using the concept of "scope", an otherwise empty interface.

GraphVizGraph graph = new GraphVizGraph();
GraphVizScope scope = ...; // any object.
graph.node(scope, a).label("Node A");
graph.node(scope, b).label("Node B");
graph.edge(scope, a, b).label("My edge");
graph.writeTo(new File("out.dot"));

For convenience, the interface GraphVizable is provided for domain objects which wish to advertise that they may be rendered to GraphViz. The domain object frequently also implements GraphVizScope, or has a private inner field of type GraphVizScope.

Parsing GraphViz Graphs

While all the grammar is present, a good fluent API has not yet been written over it.

The parser does not yet handle HTML labels delimited by angle-brackets. It should handle all other constructs, and test cases are welcome.

Documentation

The JavaDoc API is available.