☰

如何用附加路径来装饰节点？

tag-icon • tag-icon tikz-pgf tikz-styles
如何用附加路径来装饰节点？

我想给我的节点添加样式，在节点内部绘制额外的路径。

例如（没有正确放置节点）

\node[draw,circle,lVert] {};
\node[draw,circle,lHor]  {};
\node[draw,circle,lVert,lHor] {};

将产生以下节点：

在此处输入图片描述

关键词

删除线节点、节点内线、删除线样式、十字、路径作为样式

答案1

调整以下问题的解决方案（感谢 Claudio 的评论）：创建无缝 XOR 符号作为节点

我最终得到了这个可行且极其简单的代码：

\begin{tikzpicture}[
    every node/.style={draw,circle},
    hVert/.style={append after command={(\tikzlastnode.north) edge (\tikzlastnode.south)}},
    hHorz/.style={append after command={(\tikzlastnode.west) edge (\tikzlastnode.east)}}
  ]
  \node[hVert] (a) {};
  \node[right=of a,hVert,hHorz] (f) {};
  \node[right=of f,hHorz] (b) {};
\end{tikzpicture}

答案2

另一种选择：声明三种新形状。

最好只声明一个新形状并使用一些参数来绘制水平线、垂直线或两条线，但我不知道该怎么做。

\documentclass[tikz, border=2mm]{standalone}

\makeatletter
\pgfdeclareshape{hVert}
{
  \inheritsavedanchors[from=circle] % this is nearly a circle
  \inheritanchorborder[from=circle]
  \inheritanchor[from=circle]{north}
  \inheritanchor[from=circle]{north west}
  \inheritanchor[from=circle]{north east}
  \inheritanchor[from=circle]{center}
  \inheritanchor[from=circle]{west}
  \inheritanchor[from=circle]{east}
  \inheritanchor[from=circle]{mid}
  \inheritanchor[from=circle]{mid west}
  \inheritanchor[from=circle]{mid east}
  \inheritanchor[from=circle]{base}
  \inheritanchor[from=circle]{base west}
  \inheritanchor[from=circle]{base east}
  \inheritanchor[from=circle]{south}
  \inheritanchor[from=circle]{south west}
  \inheritanchor[from=circle]{south east}
  \inheritbackgroundpath[from=circle]
  \foregroundpath{
    \centerpoint% 
    \pgf@xc=\pgf@x% 
    \pgf@yc=\pgf@y%
    \pgfutil@tempdima=\radius%
    \advance\pgfutil@tempdima by -.5\pgflinewidth%
    \pgfpathmoveto{\pgfpointadd{\pgfqpoint{\pgf@xc}{\pgf@yc}}{\pgfqpoint{0pt}{\pgfutil@tempdima}}}
    \pgfpathlineto{\pgfpointadd{\pgfqpoint{\pgf@xc}{\pgf@yc}}{\pgfqpoint{0pt}{-\pgfutil@tempdima}}}
    \pgfsetarrowsstart{}
    \pgfsetarrowsend{}
  }
}
\pgfdeclareshape{hHorz}
{
  \inheritsavedanchors[from=circle] % this is nearly a circle
  \inheritanchorborder[from=circle]
  \inheritanchor[from=circle]{north}
  \inheritanchor[from=circle]{north west}
  \inheritanchor[from=circle]{north east}
  \inheritanchor[from=circle]{center}
  \inheritanchor[from=circle]{west}
  \inheritanchor[from=circle]{east}
  \inheritanchor[from=circle]{mid}
  \inheritanchor[from=circle]{mid west}
  \inheritanchor[from=circle]{mid east}
  \inheritanchor[from=circle]{base}
  \inheritanchor[from=circle]{base west}
  \inheritanchor[from=circle]{base east}
  \inheritanchor[from=circle]{south}
  \inheritanchor[from=circle]{south west}
  \inheritanchor[from=circle]{south east}
  \inheritbackgroundpath[from=circle]
  \foregroundpath{
    \centerpoint% 
    \pgf@xc=\pgf@x% 
    \pgf@yc=\pgf@y%
    \pgfutil@tempdima=\radius%
    \advance\pgfutil@tempdima by -.5\pgflinewidth%
    \pgfpathmoveto{\pgfpointadd{\pgfqpoint{\pgf@xc}{\pgf@yc}}{\pgfqpoint{\pgfutil@tempdima}{0pt}}}
    \pgfpathlineto{\pgfpointadd{\pgfqpoint{\pgf@xc}{\pgf@yc}}{\pgfqpoint{-\pgfutil@tempdima}{0pt}}}
    \pgfsetarrowsstart{}
    \pgfsetarrowsend{}
  }
}
\pgfdeclareshape{hVertHorz}
{
  \inheritsavedanchors[from=circle] % this is nearly a circle
  \inheritanchorborder[from=circle]
  \inheritanchor[from=circle]{north}
  \inheritanchor[from=circle]{north west}
  \inheritanchor[from=circle]{north east}
  \inheritanchor[from=circle]{center}
  \inheritanchor[from=circle]{west}
  \inheritanchor[from=circle]{east}
  \inheritanchor[from=circle]{mid}
  \inheritanchor[from=circle]{mid west}
  \inheritanchor[from=circle]{mid east}
  \inheritanchor[from=circle]{base}
  \inheritanchor[from=circle]{base west}
  \inheritanchor[from=circle]{base east}
  \inheritanchor[from=circle]{south}
  \inheritanchor[from=circle]{south west}
  \inheritanchor[from=circle]{south east}
  \inheritbackgroundpath[from=circle]
  \foregroundpath{
    \centerpoint% 
    \pgf@xc=\pgf@x% 
    \pgf@yc=\pgf@y%
    \pgfutil@tempdima=\radius%
    \advance\pgfutil@tempdima by -.5\pgflinewidth%
    \pgfpathmoveto{\pgfpointadd{\pgfqpoint{\pgf@xc}{\pgf@yc}}{\pgfqpoint{0pt}{\pgfutil@tempdima}}}
    \pgfpathlineto{\pgfpointadd{\pgfqpoint{\pgf@xc}{\pgf@yc}}{\pgfqpoint{0pt}{-\pgfutil@tempdima}}}
    \pgfpathmoveto{\pgfpointadd{\pgfqpoint{\pgf@xc}{\pgf@yc}}{\pgfqpoint{\pgfutil@tempdima}{0pt}}}
    \pgfpathlineto{\pgfpointadd{\pgfqpoint{\pgf@xc}{\pgf@yc}}{\pgfqpoint{-\pgfutil@tempdima}{0pt}}}
    \pgfsetarrowsstart{}
    \pgfsetarrowsend{}
  }
}
\makeatother

\begin{document}
\begin{tikzpicture}
\node[hHorz,draw, thick, blue, fill=red!30] (A) at (0,0) {};
\node[hVert,draw, red, fill=blue!30, minimum size=.75cm] (B) at (1,1) {};
\node[hVertHorz,draw, thick,fill=red!30!blue] (C) at (2,0) {};
\draw (A)--(B)--(C);
\end{tikzpicture}

\end{document}

在此处输入图片描述

相关内容