GraphViz - subgraph alignment
I would like to draw a diagram like this.
But the only diagram I can do is:
The code I used:
graph [rankdir = LR]
node [shape=box]
x1;x2;x3;y1;y2;y3;y4;y5;y6;y7;y8;
node [shape=oval]
ind60;dem60;dem65
{x1,x2,x3} -> ind60[arrowhead=none arrowtail=normal dir=both]
{y1,y2,y3,y4} -> dem60[arrowhead=none arrowtail=normal dir=both]
dem65 -> {y5,y6,y7,y8}
ind60->dem60 dem60->dem65 ind60->dem65
How can I draw the desired plot?
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1 answer
The first step in what you want to achieve, using , invisible edges , groups and rank=same
constraint=false
digraph {
node [shape=box]
{
rank=same;
y1;y2;y3;y4;
}
dem60[shape=oval];
{y1;y2;y3;y4} -> dem60 [dir=back];
{
rank=same;
x2 [group=left];
ind60[shape=oval];
dem65[shape=oval];
y6 [group=right];
x2 -> ind60 [dir=back];
ind60 -> dem65
dem65 -> y6;
}
// Invisible edges to order vertically node groups
edge[style=invis];
x1[group=left];
x3[group=left];
x1 -> x2 -> x3;
node[group=right];
y5 -> y6 -> y7 -> y8;
node[group=""]
edge[style=solid]
ind60->dem60
dem60->dem65
edge[constraint=false];
ind60 -> x1;
ind60 -> x3;
dem65 -> y5;
dem65 -> y7;
dem65 -> y8;
}
-
group
provides vertical alignment of nodes (one group). -
rank=same
makes nodes in the same rank. - The invisible edges provide the order of the ranks in the vertical group.
-
constraint=false
removes constraint computations for some edges. -
dir=back
changes the direction of the displayed edge.
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