Graphviz

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File:Red black tree graphviz example.svg

A red–black tree plotted by Graphviz

File:UnitedStatesGraphViz.svg

Undirected graph showing adjacency of the 48 contiguous United States

File:Wikipedia HistoryHelper Pluging Life Cycle.svg

A visualization of a JavaScript life cycle made by using 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 bar charts) specified in DOT language scripts having the file name extension "gv". It also provides libraries for software applications to use the tools. Graphviz is free software licensed under the Eclipse Public License.

Tools

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 up to about 1000 nodes. "Spring model" layout minimizes global energy.

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 on 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<ref>The Lefty guide (“Editing Pictures with lefty”), section 3.1, p. 9.</ref>) 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.

graphml2gv

convert a GraphML file to the DOT format.

gxl2gv, gv2gxl

convert to/from GXL, another graph file format.

Applications that use Graphviz

Template:Refimprove section Notable applications of Graphviz include:

• ArgoUML's alternative UML diagram rendering called argouml-graphviz.<ref name="argo_graphvis">{{#invoke:citation/CS1|citation

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• AsciiDoc can embed Graphviz syntax as a diagram.
• Bison is able to output the grammar as dot for visualization of the language.<ref name="bison_dot">Template:Cite book</ref>
• 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.<ref name="doxygen_graphviz">Template:Cite book</ref>
• FreeCAD uses Graphviz to display the dependencies between objects in documents.<ref name="freecad">{{#invoke:citation/CS1|citation

|CitationClass=web }}</ref>

• Gephi has a Graphviz plugin.
• Gramps uses Graphviz to create genealogical (family tree) diagrams.
• Graph-tool a Python library for graph manipulation and visualization.
• OmniGraffle version 5 and later uses the Graphviz engine, with a limited set of commands, for automatically laying out graphs.<ref>{{#invoke:citation/CS1|citation

|CitationClass=web }}</ref>

• Org-mode can work with DOT source code blocks.<ref name="org_dot">{{#invoke:citation/CS1|citation

|CitationClass=web }}</ref>

• PlantUML uses Graphviz to generate UML diagrams from text descriptions.
• Puppet can produce DOT resource graphs that can be viewed with Graphviz.
• Scribus is an open-source DTP program that can use Graphviz to render graphs by using its internal editor in a special frame type called render frame.<ref name="scribus_graphviz">Template:Cite book</ref>
• Sphinx is a documentation generator that can use Graphviz to embed graphs in documents.
• Terraform an infrastructure-as-code tool from Hashicorp allows output of an execution plan as a DOT resource graph
• TOra a free-software database development and administration GUI, available under the GNU GPL.
• Trac wiki has a Graphviz plugin.<ref name="trac_graphviz">{{#invoke:citation/CS1|citation

|CitationClass=web }}</ref>

• Zim includes a plugin that allows adding and editing in-page diagrams using the Graphviz dot language.<ref name="zim_graphviz">{{#invoke:citation/CS1|citation

|CitationClass=web }}</ref>

See also

• Graph drawing
• Graph theory
• Microsoft Automatic Graph Layout

External links

• Template:Official website
• graphviz on GitLab
• Graphviz, Projects & Software Page, AT&T Labs Research
• An Introduction to Graphviz and dot (M. Simionato, 2004)
• Create relationship diagrams with Graphviz (Shashank Sharma, 2005) Template:Webarchive