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绘制一个带有十字符号的圆形节点，以类似于信号调制器的乘法器

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绘制一个带有十字符号的圆形节点，以类似于信号调制器的乘法器

我如何在 TikZ 中执行此操作：

我想画一个圆形节点，里面有一个十字，像下面链接中显示的乘数一样。我可以画一个圆圈，但我不知道如何在里面放十字。

答案1

\documentclass{scrartcl}
\usepackage{tikz} 

\begin{document}
\begin{tikzpicture}[cross/.style={path picture={ 
  \draw[black]
(path picture bounding box.south east) -- (path picture bounding box.north west) (path picture bounding box.south west) -- (path picture bounding box.north east);
}}]

 \node [draw](A){start};
 \node [draw,circle,cross,minimum width=1 cm](B) at (3,0){}; 
  \node [draw](C) at( 5,0){end}; 
\draw[->] (A) -- (B) -- (C);

\end{tikzpicture}

\end{document}

在此处输入图片描述

答案2

下面是一个解决方案，其中包含四个参数，用于将标签放在 4 个圆形部分中。最好将参数相对于形状宽度/高度放置，但我不知道该怎么做。

\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{positioning,calc}

\tikzset{add/.style n args={4}{
    minimum width=6mm,
    path picture={
        \draw[black] 
            (path picture bounding box.south east) -- (path picture bounding box.north west)
            (path picture bounding box.south west) -- (path picture bounding box.north east);
        \node at ($(path picture bounding box.south)+(0,0.13)$)     {\tiny #1};
        \node at ($(path picture bounding box.west)+(0.13,0)$)      {\tiny #2};
        \node at ($(path picture bounding box.north)+(0,-0.13)$)    {\tiny #3};
        \node at ($(path picture bounding box.east)+(-0.13,0)$)     {\tiny #4};
        }
    }
}

\begin{document}

\begin{tikzpicture}
\node[draw,circle,add={1}{2}{3}{4}] {}; 
\end{tikzpicture}

\end{document}

在此处输入图片描述 在此处输入图片描述

编辑：根据 FHZ 的评论，参数可以相对于形状维度放置（这里是基本方向和中心之间距离的 40%）：

\node[anchor=center] at ($(path picture bounding box.south)!0.4!(path picture bounding box.center)$)  {\tiny #1};
\node[anchor=center] at ($(path picture bounding box.west)!0.4!(path picture bounding box.center)$)   {\tiny #2};
\node[anchor=center] at ($(path picture bounding box.north)!0.4!(path picture bounding box.center)$)  {\tiny #3};
\node[anchor=center] at ($(path picture bounding box.east)!0.4!(path picture bounding box.center)$)   {\tiny #4};

答案3

我使用 schemabloc 包制作的解决方案完成了前面的答案

\documentclass{article}
\usepackage{tikz}
\usepackage{schemabloc}

\begin{document}
{\centering
\begin{tikzpicture}
\sbEntree{dspk}           
\sbBloc[5]{band}{Bandpass filter}{dspk}     
\sbRelier[\parbox{5em}{DSPK \\ signal}]{dspk}{band}
 \sbBlocL{logic}{Logic circuit}{band}  
 \sbSumb[3]{sum}{logic}  
 \sbRelier{logic}{sum}
 \sbDecaleNoeudy[5]{band}{delay}
 \sbBloc[8]{delay}{Delay}{delay}
\sbRelieryx{band-logic}{delay}
\sbRelierxy{delay}{sum}
 \sbBlocL{int}{\parbox{5em}{Integrate \& Dump} }{sum}  
  \sbBlocL{thres}{\parbox{5em}{Treshold \ Device} }{int}  
  \sbSortie[4]{S}{thres}                
\sbRelier[OP]{thres}{S}
\end{tikzpicture}

}

\end{document}

请注意，该软件包需要 pgf 2.1cvs 版本

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