dot - children order in graphviz tree -


i have following tree:

digraph g {     subgraph cluster0{         37[label="+"];         42[label="a"];         44[label="b"];         47[label="*"];         46[label="c"];         49[label="d"];         51[label="e"];         53[label="f"];         55[label="g"];         57[label="h"];         61[label="*"];         60[label="i"];         63[label="j"];         37 -> 42[label="c"];         37 -> 44[label="c"];         37 -> 47[label="c"];         37 -> 61[label="c"];         42 -> 37[label="p"];         44 -> 37[label="p"];         47 -> 37[label="p"];         47 -> 46[label="c"];         47 -> 49[label="c"];         47 -> 51[label="c"];         47 -> 53[label="c"];         47 -> 55[label="c"];         47 -> 57[label="c"];         46 -> 47[label="p"];         49 -> 47[label="p"];         51 -> 47[label="p"];         53 -> 47[label="p"];         55 -> 47[label="p"];         57 -> 47[label="p"];         61 -> 37[label="p"];         61 -> 60[label="c"];         61 -> 63[label="c"];         60 -> 61[label="p"];         63 -> 61[label="p"];     } }

output here: http://i.imgur.com/q1qxkct.png

order of children in first * subtree is: g h c d e f, should c d e f g h. have noticed if delete subgraph cluster0{ order right, can't way. can suggest other solution?

graphviz attempts retain lexical ordering of nodes when there no other constraint. however, edge labels can affect placement take space , can push nodes around.

if have specific order essential, try 

{ rank = same;  46 -> 49 -> 51 -> 53 -> 55 -> 57 [style = invis]; }

to introduce additional ordering constraint graph.

you need careful though, can distort more complex graphs in ways difficult predict.


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