digraph test { graph [ratio=fill]; node [label="\N"]; graph [bb="0,0,150,174"]; subgraph cluster_Europe { graph [fillcolor=lightgray, fontname=arial, fontsize=12, label=Europe, style=filled, bb="8,8,78,166"]; London [label=London, fontname=arial, fontsize=8, pos="43,118", width="0.75", height="0.5"]; Paris [label=Paris, fontname=arial, fontsize=8, pos="43,34", width="0.75", height="0.5"]; London -> Paris [fontname=arial, fontsize=8, pos="e,37.367,51.789 37.364,100.19 36.203,89.049 35.949,74.471 36.604,61.831"]; Paris -> London [fontname=arial, fontsize=8, pos="e,48.636,100.19 48.633,51.789 49.796,62.92 50.051,77.497 49.398,90.14"]; } "New York" [label="New York", fontname=arial, fontsize=8, pos="119,34", width="0.86111", height="0.5"]; London -> "New York" [fontname=arial, fontsize=8, label=Far, pos="e,104.51,50.015 57.295,102.2 68.687,89.609 84.811,71.787 97.72,57.52", lp="91.5,76"]; }