The `graph` directive is supplied by the [[!iki plugins/graphviz]] plugin. This directive allows embedding [graphviz](http://www.graphviz.org/) graphs in a page. Example usage: \[[!graph src="a -> b -> c; a -> c;"]] Note that graphs will only show up in previews if your browser has [[!wikipedia data: URI]] support, or if the same graph already exists on that page. The `graph` directive supports the following parameters: - `src` - The graphviz source to render. - `type` - The type of graph to render: `graph` or `digraph`. Defaults to `digraph`. - `prog` - The graphviz program to render with: `dot`, `neato`, `fdp`, `twopi`, or `circo`. Defaults to `dot`. - `height`, `width` - Limit the size of the graph to a given height and width, in inches. You must specify both to limit the size; otherwise, graphviz will choose a size, without any limit.