graphviz三个排列布局与子图

时间：2017-11-25 21:23:27

标签： graphviz rank dot

我试图以自动生成的流程图的形式定位元素。 通常，inputs（绿色）应位于最右侧，outputs（红色）位于最右侧，其余应根据布局放置在中心。 我正在使用rank=source和rank=sink。 在标准图表中，它可以很好地工作。

但是，当我开始嵌套图表时，rank=source似乎无效。我期待＆lt;＆gt;的三个输入（电，开关，room_temperature）放在最左边（因为它在子图中发生）和子图+状态（棕色圆圈）和输入和输出之间的蓝框。

有没有办法指定＆＃34; rank = center＆＃34; （或类似的东西？）

我已经浏览了documentation但未找到正确的属性（以及指定它们的位置）。

MWE 

digraph MyGraph {
    node [fontsize=8  margin=".1,.01" width=.5 height=.5 shape=box]
    edge [fontsize=8]
    rankdir=LR;
    ranksep = .25;
    nodesep= .5;

subgraph cluster_4386357488 {
    label = " <<GrowLamp>>"
    style=solid
    {rank=source;
        4386357544 [label="electricity" style=filled fillcolor="#b5fed9"]
        4386357712 [label="room_temperature" style=filled fillcolor="#b5fed9"]
        4386357768 [label="switch" style=filled fillcolor="#b5fed9"]
    }
    {
        4386357880 [label="off" style=filled fillcolor="#e2cbc1" shape=doublecircle]
        4386357936 [label="on" style=filled fillcolor="#e2cbc1" shape=circle]
        4386357656 [label="on_time" style=filled fillcolor="#d2ceef"]
    }
    {rank=sink;
        4386357600 [label="light" style=filled fillcolor="#fcc5b3"]
        4386357824 [label="temperature" style=filled fillcolor="#fcc5b3"]
    }
    4386357880 -> 4386357936
    4386357936 -> 4386357880
    {
        subgraph cluster_4386357992 {
            label = "<<Adder>>"
            style=dashed
            {rank=source;
                4386358048 [label="heat_in" style=filled fillcolor="#b5fed9"]
                4386358104 [label="room_temp_in" style=filled fillcolor="#b5fed9"]
            }
            {
                4386358216 [label="state" style=filled fillcolor="#e2cbc1" shape=doublecircle]
            }
            {rank=sink;
                4386358160 [label="temperature" style=filled fillcolor="#fcc5b3"]
            }
            4386358216 -> 4386358160 [style="dashed"]
        }


        subgraph cluster_4386358328 {
            label = "<<HeatElement>>"
            style=solid
            {rank=source;
                4386358384 [label="electricity" style=filled fillcolor="#b5fed9"]
            }
            {
                4386358496 [label="on" style=filled fillcolor="#e2cbc1" shape=doublecircle]
            }
            {rank=sink;
                4386358440 [label="heat" style=filled fillcolor="#fcc5b3"]
            }
            4386358496 -> 4386358440 [style="dashed"]
        }


        subgraph cluster_4386358608 {
            label = "<<LightElement>>"
            style=solid
            {rank=source;
                4386358664 [label="electricity" style=filled fillcolor="#b5fed9"]
            }
            {
                4386358776 [label="off" style=filled fillcolor="#e2cbc1" shape=doublecircle]
                4386358832 [label="on" style=filled fillcolor="#e2cbc1" shape=circle]
            }
            {rank=sink;
                4386358720 [label="light" style=filled fillcolor="#fcc5b3"]
            }
            4386358776 -> 4386358832
            4386358832 -> 4386358776
            4386358776 -> 4386358720 [style="dashed"]
            4386358832 -> 4386358720 [style="dashed"]
        }

        4386358160 -> 4386357824
        4386357712 -> 4386358104
        4386358440 -> 4386358048
        4386358720 -> 4386357600
        4386357936 -> 4386358384 [style="dashed"]
        4386357936 -> 4386358664 [style="dashed"]
        4386357936 -> 4386357656 [style="dashed"]
    }

}

有希望的解决方案： 这就是我想要的结果。请注意绿色方框如何在各自的子图中位于左侧，红色方框位于右侧。应该有其余的元素，由graphviz定位。

How it should look like

1 个答案:

答案 0 :(得分：1)

您可以通过添加不可见边以将三个输入连接到图的其余部分来获得所需的布局，以便graphviz布局算法可以正确计算它们的等级。您可以通过将style=invis添加到边缘格式设置来使任何边缘不可见。

digraph MyGraph {
    node [fontsize=8  margin=".1,.01" width=.5 height=.5 shape=box]
    edge [fontsize=8]
    rankdir=LR;
    ranksep = .25;
    nodesep= .5;

subgraph cluster_4386357488 {
    label = " <<GrowLamp>>"
    style=solid
    {rank=source;
        4386357544 [label="electricity" style=filled fillcolor="#b5fed9"]
        4386357712 [label="room_temperature" style=filled fillcolor="#b5fed9"]
        4386357768 [label="switch" style=filled fillcolor="#b5fed9"]
    }
    {
        4386357880 [label="off" style=filled fillcolor="#e2cbc1" shape=doublecircle]
        4386357936 [label="on" style=filled fillcolor="#e2cbc1" shape=circle]
        4386357656 [label="on_time" style=filled fillcolor="#d2ceef"]
    }
    {rank=sink;
        4386357600 [label="light" style=filled fillcolor="#fcc5b3"]
        4386357824 [label="temperature" style=filled fillcolor="#fcc5b3"]
    }
    4386357880 -> 4386357936
    4386357936 -> 4386357880
    #invisible edges added to achieve correct layout
    4386357544 -> 4386357880 [style="invis"]
    4386357712 -> 4386357880 [style="invis"]
    4386357768 -> 4386357880 [style="invis"]

    {
        subgraph cluster_4386357992 {
            label = "<<Adder>>"
            style=dashed
            {rank=source;
                4386358048 [label="heat_in" style=filled fillcolor="#b5fed9"]
                4386358104 [label="room_temp_in" style=filled fillcolor="#b5fed9"]
            }
            {
                4386358216 [label="state" style=filled fillcolor="#e2cbc1" shape=doublecircle]
            }
            {rank=sink;
                4386358160 [label="temperature" style=filled fillcolor="#fcc5b3"]
            }
            4386358216 -> 4386358160 [style="dashed"]
        }


        subgraph cluster_4386358328 {
            label = "<<HeatElement>>"
            style=solid
            {rank=source;
                4386358384 [label="electricity" style=filled fillcolor="#b5fed9"]
            }
            {
                4386358496 [label="on" style=filled fillcolor="#e2cbc1" shape=doublecircle]
            }
            {rank=sink;
                4386358440 [label="heat" style=filled fillcolor="#fcc5b3"]
            }
            4386358496 -> 4386358440 [style="dashed"]
        }


        subgraph cluster_4386358608 {
            label = "<<LightElement>>"
            style=solid
            {rank=source;
                4386358664 [label="electricity" style=filled fillcolor="#b5fed9"]
            }
            {
                4386358776 [label="off" style=filled fillcolor="#e2cbc1" shape=doublecircle]
                4386358832 [label="on" style=filled fillcolor="#e2cbc1" shape=circle]
            }
            {rank=sink;
                4386358720 [label="light" style=filled fillcolor="#fcc5b3"]
            }
            4386358776 -> 4386358832
            4386358832 -> 4386358776
            4386358776 -> 4386358720 [style="dashed"]
            4386358832 -> 4386358720 [style="dashed"]
        }

        4386358160 -> 4386357824
        4386357712 -> 4386358104
        4386358440 -> 4386358048
        4386358720 -> 4386357600
        4386357936 -> 4386358384 [style="dashed"]
        4386357936 -> 4386358664 [style="dashed"]
        4386357936 -> 4386357656 [style="dashed"]
    }

}
}

使用dot.exe版本2.38，您应该得到如下图表：

Nodes aligned correctly to graph source and sink.

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