graphviz中headlabel和taillabel的不同颜色

问题描述

是否可以在graphviz中为headlabel和taillabel设置不同的颜色?使用labelfontcolor我可以为它们设置一种共同的颜色，但是我需要不同的颜色(例如headfontcolor和tailfontcolor，但是这些属性不存在).

Is it possible to set distinct colors for headlabel and taillabel in graphviz?Using labelfontcolor I can set one common color for both of them but I need different colors (something like headfontcolor and tailfontcolor but these attributes don't exist).

推荐答案

您可以使用graphviz中的HTML样式标签成功完成此操作(您可以在此页面上找到很多信息: http://www.graphviz.org/doc/info/shapes.html )，尤其是font一个:

You can succeed doing this using the HTML-style labels in graphviz (you can find lots of information on this page: http://www.graphviz.org/doc/info/shapes.html), and particularly the font one:

digraph test
{
    A -> B
    [
        taillabel = <<font color="red">tail</font>>
        label     = <<font color="green">middle</font>>
        headlabel = <<font color="blue">head</font>>
    ]
}

此代码将产生以下图表:

This code will produce the following diagram:

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