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Graphviz draw array data structure

Tags:

graphviz

I can use "record" to draw one array like this one:

graph G{
node [shape = record];
node0 [fontsize=13,  label ="A[0]|A[1]|A[2]"];
}

But how can I draw something like this one

Especially, how can I add the index number for each cell in the array, like 0,1,2,3,4,5.

Which node shape should I use?


Update at 2016/11/11

Ok, I got it based on the answer from https://stackoverflow.com/a/37986662/5374561

The code is here:

digraph so
{
rankdir=LR;
    subgraph cluster0
    {
        rank = same{ Array notes }
        color = white;
        Array [ shape = record, label = "{ A | B | C | D }"] ;
        notes [ shape = record, color = white, label = "{ 0 | 1 | 2 | 3 }" ];
        Array -> notes[ style = invis ];
    }
    nodesep = .0;
 }

But the result is not perfect. Is there any other ways?


Update at 2016/Aug/9

The solution from tequlia2pop (thank you) is close to the original pictures, but the line from "pointers" to "values" should be straight line.

like image 837
Alex Xu Avatar asked Oct 16 '25 02:10

Alex Xu


1 Answers

digraph {
    node [shape=plaintext, fontcolor=red, fontsize=18];
    "Pointers:" -> "Values:" -> "Indices:" [color=white];

    node [shape=record, fontcolor=black, fontsize=14, width=4.75, fixedsize=true];
    pointers [label="<f0> A | <f1> A+1 | <f2> A+2 | <f3> A+3 | <f4> A+4 | <f5> A+5", color=white];
    values [label="<f0> A[0] | <f1> A[1] | <f2> A[2] | <f3> A[3] | <f4> A[4] | <f5> A[5]", color=blue, fillcolor=lightblue, style=filled];
    indices [label="0 | 1 | 2 | 3| 4 | 5", color=white];

    { rank=same; "Pointers:"; pointers }
    { rank=same; "Values:"; values }
    { rank=same; "Indices:"; indices }

    edge [color=blue];
    pointers:f0 -> values:f0;
    pointers:f1 -> values:f1;
    pointers:f2 -> values:f2;
    pointers:f3 -> values:f3;
    pointers:f4 -> values:f4;
    pointers:f5 -> values:f5;
}

which yields

image link

like image 67
tequlia2pop Avatar answered Oct 18 '25 03:10

tequlia2pop



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