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如何让填充框穿过节点中心？

tag-icon • tag-icon tikz-pgf dot2tex dot2texi
如何让填充框穿过节点中心？

所以我想画一个看起来像可视化编程中的组件 - 有输入和输出。我想把它放在一个盒子里。所以我试着把它放进一个盒子里，但它有点不对劲

它看起来是这样的： 在此处输入图片描述

以下是最小代码示例（重点关注最后三行）：

\documentclass{article}
\usepackage{dot2texi}

\usepackage{tikz}
\usetikzlibrary{arrows,shapes,automata,petri,positioning, fit}

\begin{document}
\tikzset{
    place/.style={
        circle,
        thick,
        draw=blue!75,
        fill=blue!20,
        minimum size=6mm,
    },
    transitionH/.style={
        rectangle,
        thick,
        fill=black,
        minimum width=8mm,
        inner ysep=2pt
    },
    transitionV/.style={
        rectangle,
        thick,
        fill=black,
        minimum height=8mm,
        inner xsep=2pt
    }
}

\begin{tikzpicture}[>=latex',scale=0.8]


\begin{dot2tex}[dot,tikz,codeonly,styleonly,options=-s -tmath]
digraph MyGraph {
    rankdir=LR;

subgraph cluster_4386357488 {
    label = " <<GrowLamp>>"
    {rank=source;
        in_1 [ label="", style="place" ]
        in_2 [ label="", style="place" ]
        in_3 [ label="", style="place" ]
    }
    {
        middle_1 [label="", style="transitionV"]
        middle_2 [label="", style="place"]
    }
    {rank=sink;
        out_1 [label="", style="transitionV"]
        out_2 [label="", style="transitionV"]
    }
    in_1 -> middle_1;
    in_2 -> middle_1;
    in_3 -> middle_1;

    middle_1->middle_2;

    middle_2->out_1;
     middle_2->out_2;

}
}
\end{dot2tex}
\node[draw,dotted,fit=(in_1.north)  (in_3.south) (out_1.north) (out_2.south)] {};
\end{tikzpicture}
\end{document}

虚线框稍微偏离。如何让它穿过所有输入\输出节点中心？

期望结果以红色框表示： 在此处输入图片描述

答案1

像这样 ？

截屏

\documentclass{article}
\usepackage{dot2texi}

\usepackage{tikz}
\usetikzlibrary{arrows,shapes,automata,petri,positioning, fit}

\begin{document}
\tikzset{
    place/.style={
        circle,
        thick,
        draw=blue!75,
        fill=blue!20,
        minimum size=6mm,
    },
    transitionH/.style={
        rectangle,
        thick,
        fill=black,
        minimum width=8mm,
        inner ysep=2pt
    },
    transitionV/.style={
        rectangle,
        thick,
        fill=black,
        minimum height=8mm,
        inner xsep=2pt
    }
}

\begin{tikzpicture}[>=latex',scale=0.8]


\begin{dot2tex}[dot,tikz,codeonly,styleonly,options=-s -tmath]
digraph MyGraph {
    rankdir=LR;

subgraph cluster_4386357488 {
    label = " <<GrowLamp>>"
    {rank=source;
        in_1 [ label="", style="place" ]
        in_2 [ label="", style="place" ]
        in_3 [ label="", style="place" ]
    }
    {
        middle_1 [label="", style="transitionV"]
        middle_2 [label="", style="place"]
    }
    {rank=sink;
        out_1 [label="", style="transitionV"]
        out_2 [label="", style="transitionV"]
    }
    in_1 -> middle_1;
    in_2 -> middle_1;
    in_3 -> middle_1;

    middle_1->middle_2;

    middle_2->out_1;
     middle_2->out_2;

}
}
\end{dot2tex}
%\node[draw,dotted,fit=(in_1.center)  (in_3.center) (middle_2.center)] {};
\draw[red,dotted,thick] ([yshift=2mm]in_1.north) --([yshift=-2mm]in_3.south)-| (out_1.center)|-cycle;
\end{tikzpicture}
\end{document}

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