Graphviz:如何以圆形布局布置节点 [英] Graphviz: how to arrange nodes with circo layout

问题描述

我正在尝试绘制具有圆形拓扑的图形.

I'm trying to draw a graph with circle topology.

这是我期望看到的:

Here is what I'm expecting to see:

这是我的gv文件:

digraph g1 {
    layout="circo";
    node [shape = doublecircle]; N4 N6;
    node [shape = circle];
    N0 -> N1 [ label = "{1,0}"];
    N1 -> N2 [ label = "{1,0}"];
    N2 -> N3 [ label = "{1,0}"];
    N3 -> N4 [ label = "{1,0}"];
    N4 -> N5 [ label = "{1,0}"];
    N5 -> N6 [ label = "{1,0}"];
    N6 -> N0 [ label = "{1,0}"];

    N0 -> N4 [ label = "{1,0}"];
    N1 -> N5 [ label = "{1,0}"];
    N2 -> N6 [ label = "{1,0}"];
    N3 -> N0 [ label = "{1,0}"];
    N4 -> N1 [ label = "{1,0}"];
    N5 -> N2 [ label = "{1,0}"];
    N6 -> N3 [ label = "{1,0}"];    
}

这是上面图形的输出图像:

And here is an output image for graph above:

如何在graphviz中排列节点，使其看起来像 1 ?

How can I arrange nodes in graphviz to make it look like 1?

推荐答案

如果目标是创建一个尊重节点顺序的图形，那就不是那么简单.您可以使用外部脚本计算节点的位置并使用neato渲染它.

If the goal is to have a graph which respects the order of the nodes, it's not that simple. You could calculate the position of the nodes with an external script and render it with neato.

或者您可以首先用仅确定节点正确顺序的边来布局节点:

Or you could first layout the nodes with the edges which determine the correct order of the nodes only:

digraph g1 {
    node [shape = doublecircle]; N4 N6;
    node [shape = circle];
    edge[label="{1,0}"];
    N0 -> N1 -> N2 -> N3 -> N4 -> N5 -> N6 -> N0;
}

具有:

circo graph.gv > tempgraph.gv

然后将其余边添加到tempgraph.gv-只需在结束}之前将以下内容复制粘贴:

Then add the remaining edges to tempgraph.gv - just copy-paste the following before the closing }:

N0 -> N4 [ label = "{1,0}"];
N1 -> N5 [ label = "{1,0}"];
N2 -> N6 [ label = "{1,0}"];
N3 -> N0 [ label = "{1,0}"];
N4 -> N1 [ label = "{1,0}"];
N5 -> N2 [ label = "{1,0}"];
N6 -> N3 [ label = "{1,0}"];

并使用neato和-n选项进行渲染:

And render it with neato and the -n option:

neato -n tempgraph.gv -Tpng -O

您可能希望微调标签的位置:

You may want to fine-tune the position of the labels:

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