Graphviz

Graphviz (short for Graph Visualization Software) is a package of open-source tools initiated by AT&T Labs Research for drawing graphs (as in nodes and edges, not as in barcharts) specified in DOT language scripts having the "gv". It also provides libraries for software applications to use the tools. Graphviz is free software licensed under the Eclipse Public License. dot a command-line tool to produce layered graph drawings in a variety of output formats, such as (PostScript, PDF, SVG, annotated text and so on). neato useful for undirected graphs. "spring model" layout, minimizes global energy. Useful for graphs up to about 1000 nodes fdp force-directed graph drawing similar to "spring model", but minimizes forces instead of energy. Useful for undirected graphs. sfdp multiscale version of fdp for the layout of large undirected graphs twopi for radial graph layouts. Nodes are placed on concentric circles depending their distance from a given root node circo circular layout. Suitable for certain diagrams of multiple cyclic structures, such as certain telecommunications networks dotty a graphical user interface to visualize and edit graphs. lefty a programmable (in a language inspired by EZ) widget that displays DOT graphs and allows the user to perform actions on them with the mouse. Therefore, Lefty can be used as the view in a model–view–controller GUI application that uses graphs. gml2gv - gv2gml convert to/from GML, another graph file format. graphml2g convert a GraphML file to the DOT format. gxl2gv - gv2gxl convert to/from GXL, another graph file format. Notable applications of Graphviz include: ArgoUML's alternative UML Diagram rendering called argouml-graphviz. AsciiDoc can embed Graphviz syntax as a diagram. Bison is able to output the grammar as dot for visualization of the language. Confluence has a Graphviz plugin to render diagrams from text descriptions. ConnectedText has a Graphviz plugin. Doxygen uses Graphviz to generate diagrams, including class hierarchies, collaboration and call trees for source code.