Graphviz

[graphviz] /* * @formats = svg, png, gif * @imagemap = true * */ digraph G { fontname = "Bitstream Vera Sans" fontsize = 8 node [ fontname = "Bitstream Vera Sans" fontsize = 8 shape = "record" ] edge [ fontname = "Bitstream Vera Sans" fontsize = 8 ] User [ label = "{|+ name : string\l+ age : int\l|+ hello() : void\l}" URL = "http://www.drupal.org" ] } [/graphviz]