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How to add a dashed underlined label on Graphviz?

I would like to have a dashed underlined label on Graphviz, like the image bellow:

enter image description here

Solution

  • A non-automatic solution is to write underlines manually:

    partial_key_attribute [label = <<u>P</u>A<u>R</u>T<u>I</u>A<u>L</u> <u>K</u>E<u>Y</u><br/><u>A</u>T<u>T</u>R<u>I</u>B<u>U</u>T<u>E</u>>];

    Although ugly, at least this works with most kinds of use cases, although some preprocessing might be needed to make this more convenient.