commands	digraph sample1 { user [fontname="URW Schoolbook L Bold Italic", fontcolor=blue, color=red, style=filled, fillcolor=yellow, shape=diamond]; graphic [fontname="Courier Italic", fontcolor=darkgreen, shape=record, style=filled, fillcolor=lightblue, label="{graphic\|{<jpg>jpg\|<gif>gif\|<png>png\|...}}"]; user -> browser; browser -> webserver; webserver -> graphviz; graphviz -> graphic:jpg; graphviz -> graphic:gif; graphviz -> graphic:png; user -> graphviz; graphic -> user [color=blue, style=bold]; }
output format	png jpg pdf ps eps ps2 svg dia fig pcl
rendering engine