使用graphviz绘制晶格时，如何在节点上施加y位置？

我正在使用Graphviz绘制晶格。
节点是一组数字

作为一个晶格，我希望节点的高度位置（y）表示该节点表示的集合中元素的数量。然后，应使用graphviz定义x位置，以使表示更清晰

可能吗

根据dot文档，应该有定义节点位置的属性pos。但是，尽管我用许多不同的方法尝试了很多次，我还是无法得到任何定义了节点位置的图。有人在这方面取得了成功吗

下面是我使用的经典点文件：

digraph G {
"528 544\n640 768" -> "768 528"; 
"528 536\n530 539" -> "539"; 
"528 536\n530 539" -> "528"; 
"800 896 548\n944 566 728\n539 704 768" -> "704 768\n539 548"; 
"800 896 548\n944 566 728\n539 704 768" -> "944 728\n539 566"; 
"800 896 548\n944 566 728\n539 704 768" -> "944 800\n896 768"; 
"768 539" -> "768"; 
"768 539" -> "539"; 
"768" -> "∅"; 
"944" -> "∅"; 
"944 528 536\n530 566 560\n728 656 539" -> "528 536\n530 539"; 
"944 528 536\n530 566 560\n728 656 539" -> "944 728\n539 566"; 
"944 528 536\n530 566 560\n728 656 539" -> "944 656\n528 560"; 
"704 768\n539 548" -> "768 539"; 
"944 728\n539 566" -> "944"; 
"944 728\n539 566" -> "539"; 
"800 896 640\n944 560 528\n544 656 768" -> "528 544\n640 768"; 
"800 896 640\n944 560 528\n544 656 768" -> "944 656\n528 560"; 
"800 896 640\n944 560 528\n544 656 768" -> "944 800\n896 768"; 
"539" -> "∅"; 
"944 656\n528 560" -> "944"; 
"944 656\n528 560" -> "528"; 
"896 640 656 536\n530 728 539 704\n768 800 544 528\n548 944 566 560" -> "800 896 548\n944 566 728\n539 704 768"; 
"896 640 656 536\n530 728 539 704\n768 800 544 528\n548 944 566 560" -> "944 528 536\n530 566 560\n728 656 539"; 
"896 640 656 536\n530 728 539 704\n768 800 544 528\n548 944 566 560" -> "800 896 640\n944 560 528\n544 656 768"; 
"896 640 656 536\n530 728 539 704\n768 800 544 528\n548 944 566 560" -> "768 704 548\n528 530 544\n536 640 539"; 
"768 528" -> "768"; 
"768 528" -> "528"; 
"528" -> "∅"; 
"768 704 548\n528 530 544\n536 640 539" -> "528 544\n640 768"; 
"768 704 548\n528 530 544\n536 640 539" -> "704 768\n539 548"; 
"768 704 548\n528 530 544\n536 640 539" -> "768 528 530\n539 536"; 
"944 800\n896 768" -> "768"; 
"944 800\n896 768" -> "944"; 
"768 528 530\n539 536" -> "528 536\n530 539"; 
"768 528 530\n539 536" -> "768 539"; 
"768 528 530\n539 536" -> "768 528"; 
}

如果有人能写一个定义了一个节点高度的文件示例，我将非常感激

我找到了答案

在这里：

从本质上讲，可以定义哪些节点集应处于相同的高度。 要使节点A和B处于相同的高度，我需要添加以下行： {rank=相同；A B}

这里有一个与前面类似的示例，但节点设置正确：

digraph G {
{rank=same;  "768"  "944"  "539"  "528" };
{rank=same;  "768 539"  "768 528" };
{rank=same;  "768 640\n528 544"  "528 536\n530 539"  "768 704\n539 548"  "944 728\n539 566"  "944 656\n528 560"  "944 800\n896 768" };
{rank=same;  "800 896 548\n944 566 728\n539 704 768"  "528 944 536\n530 566 560\n728 656 539"  "800 896 944\n656 560 528\n544 640 768"  "768 640 548\n528 530 544\n536 539 704" };
"768 640\n528 544" -> "768 528"; 
"528 536\n530 539" -> "539"; 
"528 536\n530 539" -> "528"; 
"800 896 548\n944 566 728\n539 704 768" -> "768 704\n539 548"; 
"800 896 548\n944 566 728\n539 704 768" -> "944 728\n539 566"; 
"800 896 548\n944 566 728\n539 704 768" -> "944 800\n896 768"; 
"768 539" -> "768"; 
"768 539" -> "539"; 
"768" -> "∅"; 
"944" -> "∅"; 
"528 944 536\n530 566 560\n728 656 539" -> "528 536\n530 539"; 
"528 944 536\n530 566 560\n728 656 539" -> "944 728\n539 566"; 
"528 944 536\n530 566 560\n728 656 539" -> "944 656\n528 560"; 
"768 704\n539 548" -> "768 539"; 
"944 728\n539 566" -> "944"; 
"944 728\n539 566" -> "539"; 
"800 896 944\n656 560 528\n544 640 768" -> "768 640\n528 544"; 
"800 896 944\n656 560 528\n544 640 768" -> "944 656\n528 560"; 
"800 896 944\n656 560 528\n544 640 768" -> "944 800\n896 768"; 
"539" -> "∅"; 
"944 656\n528 560" -> "944"; 
"944 656\n528 560" -> "528"; 
"896 640 656 536\n530 728 539 704\n768 800 544 528\n548 944 566 560" -> "800 896 548\n944 566 728\n539 704 768"; 
"896 640 656 536\n530 728 539 704\n768 800 544 528\n548 944 566 560" -> "528 944 536\n530 566 560\n728 656 539"; 
"896 640 656 536\n530 728 539 704\n768 800 544 528\n548 944 566 560" -> "800 896 944\n656 560 528\n544 640 768"; 
"896 640 656 536\n530 728 539 704\n768 800 544 528\n548 944 566 560" -> "768 640 548\n528 530 544\n536 539 704"; 
"768 528" -> "768"; 
"768 528" -> "528"; 
"528" -> "∅"; 
"768 640 548\n528 530 544\n536 539 704" -> "768 640\n528 544"; 
"768 640 548\n528 530 544\n536 539 704" -> "768 704\n539 548"; 
"768 640 548\n528 530 544\n536 539 704" -> "528 768 530\n539 536"; 
"944 800\n896 768" -> "768"; 
"944 800\n896 768" -> "944"; 
"528 768 530\n539 536" -> "528 536\n530 539"; 
"528 768 530\n539 536" -> "768 539"; 
"528 768 530\n539 536" -> "768 528"; 
}

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+1，运行它，它为我工作。我喜欢Graphviz快速生成状态图。