graphviz 点流程图 table-labels place and sometimes truncated

graphviz dot flow chart table-labels place and sometimes truncated

我创建了一个相当大的流程图。一些边缘标签(呈现为 tables)有这些问题:

这个图表的想法是有一个水平时间轴,"column nodes" 同时发生(或在时间轴上靠得很近)。所以为了强制执行这个 "time flow" 我最终使用了 rankdir="LR";{rank=same; my_first_node; my_second_node; }.

如何使 "table labels" 的渲染效果更好一些?就像不越过边缘,将文本完全放在 table 单元格中,在导出到 PNG 时看到完整的图表?

我使用此命令生成 PNG 输出图像:dot -Tpng foo.dot -o foo.png,请参阅下面的 "table label" 问题:

digraph my_flow {
  // global graph conf
  rankdir="LR"; // orziontal
  nodesep=0.9;

  // shared conf
  edge [ fontname="Courier New", fontsize=20];
  node [ fontname=Helvetica, fontsize=26, style="rounded,filled", nojustify=true];

  // many different node "classes"
  node[shape=doublecircle, color=navajowhite]
    my_first_node; my_second_node;
  node[shape=rect, color=aquamarine2]
    first_std_horiz_node; second_std_horiz_node;

  // custom configuration for each node
  first_std_horiz_node[label="First \l std \l horizontal \l node"]
  second_std_horiz_node[label="Second \l std \l horizontal \l node"]
  my_first_node[label="My \l first \l node"]
  my_second_node[label="My \l second \l node"]

  // sets of nodes in the same "column"
  {rank=same; my_first_node; my_second_node; }

  first_std_horiz_node -> second_std_horiz_node
  second_std_horiz_node -> my_first_node
  my_first_node -> my_second_node [label=<<TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0">
                             <TR><TD BGCOLOR="gray">action type 1</TD></TR>
                             <TR><TD>action 1 very very very very long description</TD></TR>
                             <TR><TD BGCOLOR="gray">action type 2</TD></TR>
                             <TR><TD>action X</TD></TR>
                             <TR><TD>action Y</TD></TR>
                             <TR><TD BGCOLOR="gray">action type 3</TD></TR>
                             <TR><TD>action A</TD></TR>
                             <TR><TD>action B</TD></TR>
                             <TR><TD>action C</TD></TR>
                             <TR><TD BGCOLOR="gray">action type 4</TD></TR>
                             <TR><TD>action Q</TD></TR>
                             <TR><TD>action W</TD></TR>
                           </TABLE>>];
}

如果你把你的 table 放在一个节点而不是边缘标签中,事情看起来会更好;并使用 HTML 标签 <BR/>,您可以在 table 中换行。相应地编辑您的代码,我想出了

digraph my_flow {
  // global graph conf
  rankdir="LR"; // horizontal
  nodesep=0.9;

  // shared conf
  node [ fontname=Helvetica, fontsize=26, style="rounded,filled", nojustify=true];

  // node instead of edge label
  my_table[ shape=none, margin=0, fontname="Courier New", fontsize=20, label=<
          <TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0">
           <TR><TD BGCOLOR="gray">action type 1</TD></TR>
           <TR><TD BGCOLOR="white">action 1<BR/>very very very very<BR/>long description</TD></TR>
           <TR><TD BGCOLOR="gray">action type 2</TD></TR>
           <TR><TD BGCOLOR="white">action X</TD></TR>
           <TR><TD BGCOLOR="white">action Y</TD></TR>
           <TR><TD BGCOLOR="gray">action type 3</TD></TR>
           <TR><TD BGCOLOR="white">action A</TD></TR>
           <TR><TD BGCOLOR="white">action B</TD></TR>
           <TR><TD BGCOLOR="white">action C</TD></TR>
           <TR><TD BGCOLOR="gray">action type 4</TD></TR>
           <TR><TD BGCOLOR="white">action Q</TD></TR>
           <TR><TD BGCOLOR="white">action W</TD></TR>
         </TABLE>> ]

  // many different node "classes"
  node[shape=doublecircle, color=navajowhite]
    my_first_node; my_second_node;
  node[shape=rect, color=aquamarine2]
    first_std_horiz_node; second_std_horiz_node;

  // custom configuration for each node
  first_std_horiz_node[label="First \l std \l horizontal \l node"]
  second_std_horiz_node[label="Second \l std \l horizontal \l node"]
  my_first_node[label="My \l first \l node"]
  my_second_node[label="My \l second \l node"]

  // sets of nodes in the same "column"
  {rank=same; my_first_node; my_table; my_second_node; }

  first_std_horiz_node -> second_std_horiz_node -> my_first_node;
  my_first_node -> my_table[ dir = none ];
  my_table -> my_second_node;
}

产生

编辑

修改table代码后,也可以使用table作为标签;为了更容易在这里再次参考完整代码:

digraph my_flow {
  // global graph conf
  rankdir="LR"; // horizontal
  nodesep=0.9;

  // shared conf
  node [ fontname=Helvetica, fontsize=26, style="rounded,filled", nojustify=true];

  // node instead of edge label


  // many different node "classes"
  node[shape=doublecircle, color=navajowhite]
    my_first_node; my_second_node;
  node[shape=rect, color=aquamarine2]
    first_std_horiz_node; second_std_horiz_node;

  // custom configuration for each node
  first_std_horiz_node[label="First \l std \l horizontal \l node"]
  second_std_horiz_node[label="Second \l std \l horizontal \l node"]
  my_first_node[label="My \l first \l node"]
  my_second_node[label="My \l second \l node"]

  // sets of nodes in the same "column"
  {rank=same; my_first_node; my_second_node; }

  first_std_horiz_node -> second_std_horiz_node -> my_first_node;
  my_first_node -> my_second_node[ fontname="Courier New", fontsize=20, label=<
          <TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0">
           <TR><TD BGCOLOR="gray">action type 1</TD></TR>
           <TR><TD BGCOLOR="white">action 1<BR/>very very very very<BR/>long description</TD></TR>
           <TR><TD BGCOLOR="gray">action type 2</TD></TR>
           <TR><TD BGCOLOR="white">action X</TD></TR>
           <TR><TD BGCOLOR="white">action Y</TD></TR>
           <TR><TD BGCOLOR="gray">action type 3</TD></TR>
           <TR><TD BGCOLOR="white">action A</TD></TR>
           <TR><TD BGCOLOR="white">action B</TD></TR>
           <TR><TD BGCOLOR="white">action C</TD></TR>
           <TR><TD BGCOLOR="gray">action type 4</TD></TR>
           <TR><TD BGCOLOR="white">action Q</TD></TR>
           <TR><TD BGCOLOR="white">action W</TD></TR>
         </TABLE>> ];
}

产生

在给定的上下文中,我发现节点解决方案更可取/更清晰,因为它使 table 中的信息所属的位置更加清晰。但如果还有更多,边缘方式也可以。