在GraphViz中创建图例/键 [英] Making a Legend/Key in GraphViz

问题描述

我想在我的GraphViz图表中包含图例或键.不过，我在弄清楚要使用什么代码时遇到了麻烦.我也想把它放在一个角落，但是我确定唯一知道的坐标是左下角:pos="10,10!".

I’d like to include a legend or key in my GraphViz diagram. I’m having trouble figuring out what code to use, though. I also want to put it in a corner, but the only coord I know for sure is the bottom-left: pos="10,10!".

有人知道我如何使它工作吗?

Does anyone know how I can get this to work?

推荐答案

digraph {
  rankdir=LR
  node [shape=plaintext]
  subgraph cluster_01 { 
    label = "Legend";
    key [label=<<table border="0" cellpadding="2" cellspacing="0" cellborder="0">
      <tr><td align="right" port="i1">item 1</td></tr>
      <tr><td align="right" port="i2">item 2</td></tr>
      <tr><td align="right" port="i3">item 3</td></tr>
      <tr><td align="right" port="i4">item 4</td></tr>
      </table>>]
    key2 [label=<<table border="0" cellpadding="2" cellspacing="0" cellborder="0">
      <tr><td port="i1">&nbsp;</td></tr>
      <tr><td port="i2">&nbsp;</td></tr>
      <tr><td port="i3">&nbsp;</td></tr>
      <tr><td port="i4">&nbsp;</td></tr>
      </table>>]
    key:i1:e -> key2:i1:w [style=dashed]
    key:i2:e -> key2:i2:w [color=gray]
    key:i3:e -> key2:i3:w [color=peachpuff3]
    key:i4:e -> key2:i4:w [color=turquoise4, style=dotted]
  }
  ...

我使用了dot.

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