Visualization Using Graphviz

Visualization Using Graphviz

QuickGraph supports generating dot files, the file format of Graphviz. All Graphviz related code are located in the {{QuickGraph.Graphviz.dll}} assembly.

Basic graph rendering

The {{GraphvizAlgorithm}} class contains the logic to render a {{IVertexAndEdgeListGraph}}.

• {{GraphFormat}}, {{CommonVertexFormat}} and {{CommonEdgeFormat}} control the default 'looks' of the generated graph,
• {{FormatVertex}} and {{FormatEdge}} events let you customize the display of individual vertices and edges.

{{ IVertexAndEdgeListGraph<TVertex,TEdge> g= ...; var graphviz = new GraphvizAlgorithm<TVertex,TEdge>(g);

// render string output = graphviz.Generate(new FileDotEngine(), "graph"); }}

Custom Rendering of Dot

QuickGraph sends the generated {{dot}} code to a 'dot engine' interface which is supposed to do the rest of the work. This is where you can plugin and add any additional steps. QuickGraph provides a simple rendering engine that writes the dot file to disk :)

{{ public interface IDotEngine { // renders the dot code and returns the name of the generated file string Run( GraphvizImageType imageType, string dot, string outputFileName); } }}