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当使用花键= true中的graphviz中时，平行边缘将合并为1

发布于 2025-01-30 04:17:14 字数 1651 浏览 2 评论 0原文

我正在使用graphviz（dot）生成一个无向的多编码，其中许多边缘与节点重叠，我还必须平行边缘（2个带有多个边缘的节点）。

我尝试使用花键= true来删除重叠，但这只是使大量的平行边缘合并到一个边缘中。

这是我的图表上带有和没有花纹的图片：

使用splines = true

使用花键= false

我想要获得的东西将是一种可视化并行边缘而无需妥协的方式图形清晰度。

我用较小的图表复制了这个问题：

使用spline = true

使用splines = false

这是此较小图的点代码：

graph G {
    bgcolor = grey
    layout = fdp
    outputorder = edgesfirst
    splines = false
    
    
    a [color = white, style = filled, shape = circle ]
    b [color = white, style = filled, shape = circle ]
    b [color = white, style = filled, shape = circle ]
    c [color = white, style = filled, shape = circle ]
    d [color = white, style = filled, shape = circle ]
    e [color = white, style = filled, shape = circle ]
    f [color = white, style = filled, shape = circle ]
    g [color = white, style = filled, shape = circle ]
    h [color = white, style = filled, shape = circle ];

    a--b [color=red]
    a--b [color=blue]
    a--g [color=red]
    a--f [color=blue]
    a--c [color=black]
    a--d [color=red]
    b--h [color=black]
    e--h [color=blue]
    e--d [color=black]
    e--g [color=red]
    c--f [color=black]
    c--f [color=red]
    b--d [color=blue]
    g--b [color=black]
    h--a [color=red]

原文

I'm using graphviz (dot) to generate an undirected multigraph where a lot of the edges are overlapping with nodes and I also have to parallel edges (2 nodes with multiple edges).

I tried to use splines = true to remove the overlap but that just made a ton of parallel edges merge into a single edge.

Here is a Picture on my graph with and without splines:

using splines = true

using splines = false

What I am looking to get would be a way to visualize the parallel edges without having to compromise with graph clarity.

I replicated this issue with a smaller graph:

using splines = true

using splines = false

Here is the dot code for this smaller graph:

graph G {
    bgcolor = grey
    layout = fdp
    outputorder = edgesfirst
    splines = false
    
    
    a [color = white, style = filled, shape = circle ]
    b [color = white, style = filled, shape = circle ]
    b [color = white, style = filled, shape = circle ]
    c [color = white, style = filled, shape = circle ]
    d [color = white, style = filled, shape = circle ]
    e [color = white, style = filled, shape = circle ]
    f [color = white, style = filled, shape = circle ]
    g [color = white, style = filled, shape = circle ]
    h [color = white, style = filled, shape = circle ];

    a--b [color=red]
    a--b [color=blue]
    a--g [color=red]
    a--f [color=blue]
    a--c [color=black]
    a--d [color=red]
    b--h [color=black]
    e--h [color=blue]
    e--d [color=black]
    e--g [color=red]
    c--f [color=black]
    c--f [color=red]
    b--d [color=blue]
    g--b [color=black]
    h--a [color=red]

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飘逸的'云 2025-02-06 04:17:15

您正在击中一个错误，该错误是在版本2.43.0后某个时候引入的。它似乎会影响除 dot 外的每个引擎。
我建议在这里报告此错误： https://gitlab.com/graphviz/graphviz/graphviz/graphviz/graphviz/-/issues 。
尚未找到工作。

回复收藏 0 原文

許願樹丅啲祈禱 2025-02-06 04:17:15

您的示例图最少缺少闭合支架。不确定是否缺少任何节点或边缘，
您的图实际使用 fdp 引擎，而不是 dot 引擎引擎layout = fdp
美学通常在旁观者的眼睛，但这里有一些建议：
- 尝试不同的布局引擎（ dot，neato，circo，twopi ）
- 也尝试花纹 = polyline 和弯曲
- 查看平行边缘的着色（ https://graphviz.org/graphviz.org/doc/doc/info/ attr.html ）