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digraph G {
subgraph cluster0 { //subgraph<Graph>
node [style=filled color=white];
style = filled;
bgcolor = lightgrey;
subgraph inner { //subgraph<Graph> or subgraph of subgraph
node [color = green];
a1 -> a2 -> a3
};
a0 -> subgraph inner;
label = "process #1";
}
subgraph cluster1 {
node [style=filled color=white];
b0 -> b1 -> b2 -> b3;
label = "process #2";
bgcolor = lightgrey
}
subgraph cluster1 -> subgraph cluster0 [style=dashed color=red]
start -> subgraph inner[style=dotted];
start -> a0;
start -> b0;
a1 -> b3;
b2 -> a3;
a3 -> end;
b3 -> end;
start [shape=Mdiamond];
end [shape=Msquare];
}
|
