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用板符号绘制图形模型的软件

发布于 2024-09-14 06:48:56 字数 404 浏览 12 评论 0原文

因此，我一直在研究论文和在线文章中看到以板符号表示的图形模型（例如： http://www.cs.princeton.edu/~blei/papers/BleiNgJordan2003.pdf）。

有没有一种快速简便的方法来生产这些？我搜索了又搜索，但我发现的只是像 GraphViz 这样的解决方案，它们确实比我需要的更强大（因此更难以使用）。 PGF/Tikz 似乎是我最好的选择，但又似乎有点矫枉过正。

也许我最好的选择是在 Inkscape 中制作它们，或者硬着头皮学习 PGF/Tikz。它们太受欢迎了，我以为会有一种更简单的方法来生产它们，但也许不是……TIA。

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黑寡妇 2024-09-21 06:48:57

GraphViz 确实不难学。对于这类图表来说，基本语言非常简单。我只花了一些时间（或多或少）复制了该 pdf 中的第一个示例，它的好处是，由于它很简单，所以很容易从其他数据源按程序生成图形。

Digraph fig1 {
rankdir = LR; //order things from left to right

//define alpha and beta as existing
α [shape=circle];
β [shape=circle];
//not strictly nescessary but helps if you want to
//assign them specific shapes or colours

subgraph cluster_M //names beginning with "cluster" get a box drawn, an odd hack
{
    label = "M"

    θ [shape=circle];
    subgraph cluster_N
    {
        label = "N"
        z [shape=circle];
        w [shape=circle, style=filled]
        z->w; //quite literally z points at w
    }

    θ -> z;
}
α -> θ;
β -> w;
}

编译为
点-Tpng input.txt -o graph.png
它看起来像这样。如果气泡下方的标签很重要，您可以使用几行额外的线来做到这一点，同样，如果节点的特定位置很重要，您也可以调整它。事实上，如果您不指定图像格式，dot 的默认行为是输出输入文件的一个版本，其中包含每个元素位置的坐标。

输出图像

GraphViz really isn't that hard to learn. The basic language is really simple for these kinds of graphs. It took me just a few moments to replicate (more or less) the first example from that pdf, and the nice thing about it is that, due to it's simplicity, it's quite easy to generate graphs procedurally from some other data source.

Digraph fig1 {
rankdir = LR; //order things from left to right

//define alpha and beta as existing
α [shape=circle];
β [shape=circle];
//not strictly nescessary but helps if you want to
//assign them specific shapes or colours

subgraph cluster_M //names beginning with "cluster" get a box drawn, an odd hack
{
    label = "M"

    θ [shape=circle];
    subgraph cluster_N
    {
        label = "N"
        z [shape=circle];
        w [shape=circle, style=filled]
        z->w; //quite literally z points at w
    }

    θ -> z;
}
α -> θ;
β -> w;
}

compiled with
dot -Tpng input.txt -o graph.png
it comes out looking like this. If having the labels below the bubbles was important, you could do that with a couple of extra lines, similarly if specific placement of nodes is important you can adjust that too. In fact, if you don't specify an image format, the default behaviour of dot is to output a version of the input file with co-ordinates for the position of each element.

The output image

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