Graphviz:在标签上添加标题到节点上 [英] Graphviz: Putting a Caption on a Node In Addition to a Label

问题描述

在我的Graphviz图(用DOT编写)中，我希望每个节点都有一个标签，但是除此之外，我希望某些节点具有一个小的标题，表示该节点的其他唯一值.例如，如果这是用于历史记录图，则节点的标签可能类似于乔治华盛顿的出生"，并且标题可能显示为另请参阅:美国革命".

In my Graphviz graph (written in DOT), I want each node to have a label, but in addition to that, I want some nodes to have a small caption denoting some other unique value for that node. For example, if this were for a history diagram, a node's label might be something like "Birth of George Washington" and the caption might read "See also: American Revolution."

这是相当灵活的，因此标题不一定必须位于节点内，但我确实需要其他方式来放置显然不属于标签的文本(例如，大小不同，可能是颜色不同)，并且位置不同，但显然仍然是节点的一部分.

This is fairly flexible, so the caption doesn't necessarily need to be inside the node, but I do need some other way of putting text that clearly isn't part of the label (e.g. is a different size, possibly a different color) and is in a different location but is still clearly a part of the node.

有什么办法吗?

推荐答案

要将字幕放在节点外部，可以使用

To place captions outside the node, you may use xlabel:

digraph g {
    forcelabels=true;
    a [label="Birth of George Washington", xlabel="See also: American Revolution"];
    b [label="Main label", xlabel="Additional caption"];
    a-> b;
}

forcelabels=true 确保没有省略xlabel.

forcelabels=true makes sure no xlabel is omitted.

第二种选择是使用类似HTML的标签:

digraph g {
    a[label=<Birth of George Washington<BR />
        <FONT POINT-SIZE="10">See also: American Revolution</FONT>>];
}

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