点图语言-如何自动制作双向边线? [英] Dot graph language - how to make bidirectional edges automatically?

问题描述

这是我的点图的非常简化的示例:

Here is a very simplified example of my Dot graph:

strict digraph graphName {
A->B
B->A
}

这将创建

相反，我希望在A和B之间显示一条单边，但要有一个双箭头.我知道如何将双箭头作为全局选项:

Instead I want a single edge shown between A and B but with a double arrow head. I know how to get the double arrowhead as a global option:

strict digraph graphName {
  edge [dir="both"]
A->B
B->A
}

但这看起来很丑陋，并不是我的所有边缘都应该是双头的.

But that looks very ugly, and not all of my edges should be dual headed.

如果我对图形进行更多处理并自己检测到双重引用，并用一条边替换了两条边，则看起来不错.但我宁愿不必执行此额外步骤

If I do more processing of the graph and detect the double reference myself and replace the two edges with a single edge, it looks OK. But I'd rather not have to do this extra step

strict digraph graphName {
A->B [dir="both"]
}

有更好的解决方案吗?

推荐答案

'concentrate = true'怎么样?:

How about 'concentrate=true'?:

strict digraph graphName {
concentrate=true
A->B
B->A
}

从文档:

如果为true，请使用边缘集中器.这 将多边合并为一条边 并导致部分平行的边缘 分享他们的部分路径.后者 外部尚不可用 点.

If true, use edge concentrators. This merges multiedges into a single edge and causes partially parallel edges to share part of their paths. The latter feature is not yet available outside of dot.

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