保留 grahpviz 子图中的节点顺序

Question

如何让 graphviz 保留子图中节点的顺序？

请参阅下面的图片和代码。由于某种原因，第二个节点（编号为 2）显示在顶部，第一个节点显示在底部。

我看了这个问题，但没有解决问题（或者我不明白如何正确实施这些建议）：

Preventing graphviz from rearranging nodes

digraph G {

        rankdir=LR
        splines=line
        nodesep=0.3;
        ranksep=2
        
        node [label=""];
        // edge [dir=none];
        edge[arrowhead="empty"];
        // graph [ordering="out"];

        subgraph cluster_0 {
        color=white;
                // {rank=same;x1;x2;x3;x4;x5}
                node [style=solid,color=blue4, shape=circle];
        x1 [label="1"] x2 [label="2"] x3 [label="3"] x4 [label="4"] x5 [label="5"];
    }

    subgraph cluster_1 {
        color=white;
        node [style=solid,color=red2, shape=circle];
                edge[style=invisible]
        a12 [label="1"] a22 [label="2"] a32 [label="3"] a42 [label="4"];
    }

    subgraph cluster_2 {
        color=white;
        node [style=solid,color=red2, shape=circle];
        a13 a23 a33 a43;
    }

    subgraph cluster_3 {
        color=white;
        node [style=solid,color=seagreen2, shape=circle];
        O1 O2 O3;
    }

        x1 -> a12;
        x1 -> a22;
        x1 -> a32;
        x1 -> a42;

        x2 -> a12;
        x2 -> a22;
        x2 -> a32;
        x2 -> a42;
 
        x3 -> a12;
        x3 -> a22;
        x3 -> a32;
        x3 -> a42;

        x4 -> a12;
        x4 -> a22;
        x4 -> a32;
        x4 -> a42;

        x5 -> a12;
        x5 -> a22;
        x5 -> a32;
        x5 -> a42;

        a12 -> a13
        a22 -> a13
        a32 -> a13
        a42 -> a13

        a12 -> a23
        a22 -> a23
        a32 -> a23
        a42 -> a23

        a12 -> a33
        a22 -> a33
        a32 -> a33
        a42 -> a33

        a12 -> a43
        a22 -> a43
        a32 -> a43
        a42 -> a43

        a13 -> O1
        a23 -> O1
        a33 -> O1
        a43 -> O1

        a13 -> O2
        a23 -> O2
        a33 -> O2
        a43 -> O2

        a13 -> O3
        a23 -> O3
        a33 -> O3
        a43 -> O3

}

Answer 1

我也找不到成功使用 ordering 的方法。因为它们似乎没有被使用，所以我删除了 cluster 引用。此版本使用 weight 属性来保持节点的顺序。

digraph G {
        rankdir=LR
        splines=line
        nodesep=0.3;
        ranksep=2
        
        node [label=""];
        edge[arrowhead="empty"];

     {
        rank=same
        node [style=solid,color=blue4, shape=circle];
        x1 [label="1"] x2 [label="2"] x3 [label="3"] x4 [label="4"] x5 [label="5"];
    edge [weight=50]  // arbitrarily large integer
    edge [style=invis]
    x1->x2 x2->x3 x3->x4 x4->x5
     }
     {
        rank=same
        node [style=solid,color=red2, shape=circle];
        edge[style=invisible]
        a12 [label="1"] a22 [label="2"] a32 [label="3"] a42 [label="4"];
    
    edge [weight=50]  // arbitrarily large integer
    edge [style=invis]
    a12->a22 a22->a32 a32->a42
    }
    {
        rank=same
        node [style=solid,color=red2, shape=circle];
        a13 a23 a33 a43;
    }
    {
        rank=same
        node [style=solid,color=seagreen2, shape=circle];
        O1 O2 O3;
    }
        x1 -> a12;
        x1 -> a22;
        x1 -> a32;
        x1 -> a42;

        x2 -> a12;
        x2 -> a22;
        x2 -> a32;
        x2 -> a42;
 
        x3 -> a12;
        x3 -> a22;
        x3 -> a32;
        x3 -> a42;

        x4 -> a12;
        x4 -> a22;
        x4 -> a32;
        x4 -> a42;

        x5 -> a12;
        x5 -> a22;
        x5 -> a32;
        x5 -> a42;

        a12 -> a13
        a22 -> a13
        a32 -> a13
        a42 -> a13

        a12 -> a23
        a22 -> a23
        a32 -> a23
        a42 -> a23

        a12 -> a33
        a22 -> a33
        a32 -> a33
        a42 -> a33

        a12 -> a43
        a22 -> a43
        a32 -> a43
        a42 -> a43

        a13 -> O1
        a23 -> O1
        a33 -> O1
        a43 -> O1

        a13 -> O2
        a23 -> O2
        a33 -> O2
        a43 -> O2

        a13 -> O3
        a23 -> O3
        a33 -> O3
        a43 -> O3
}

给予：

（是的，中间有很多失败）

保留 grahpviz 子图中的节点顺序

Preserve order of nodes in grahpviz subgraph

graphviz