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实例化期间更改自定义形状中的默认标签文本

tag-icon • tag-icon tikz-pgf circuitikz
实例化期间更改自定义形状中的默认标签文本

myIC我使用库创建了名为 的自定义电气元件circuitikz.sty。myIC有三个引脚，分别标记为、PinA和一个默认标签。我在环境中定义了此组件，这样我就可以轻松地将其合并到环境中。PinBPinCmyIClabelpgfdeclareshapecircuitikz

问题：如何myIClabel在实例化期间更改默认标签文本myIC？请参阅下面的输出屏幕截图

代码：

\documentclass[border=0cm]{standalone}

\usepackage{circuitikz}

\pgfdeclareshape{myIC}{
    
    % define saved anchor
    % ----------------------------------------
      \anchor{center}{\pgfpointorigin}
      
    % define Connectors relative to the center
    % ----------------------------------------
      % Pin A:
      \savedanchor\myICpinA{\pgfpoint{-30}{10}}
      \anchor{PinA}{\myICpinA}
      % Pin B:
      \savedanchor\myICpinB{\pgfpoint{-30}{-10}}
      \anchor{PinB}{\myICpinB}
      % Pin C:
      \savedanchor\myICpinC{\pgfpoint{30}{0}}
      \anchor{PinC}{\myICpinC}
        
    \foregroundpath{
        
        \pgfpathrectanglecorners{\pgfpoint{-30}{-30}}{\pgfpoint{30}{30}}
        \pgfusepath{draw}
        
        \pgftext[left,  at={\myICpinA}]{PinA}
        \pgftext[left,  at={\myICpinB}]{PinB}
        \pgftext[right, at={\myICpinC}]{PinC}
        
        % my static label
        \pgftext[center, at={\pgfpoint{0}{35}}]{\small\textcolor{black}{myIClabel}}
        
        }
    
}

\begin{document}
    \begin{circuitikz}
        % Instance of the custom component in red
        \draw (0,0) node[myIC, red] (myIC1) {};
        % Another instance in green
        \draw (3,0) node[myIC, green] (myIC2) {};
        % Yet another instance in blue
        \draw (6,0) node[myIC, blue] (myIC3) {};
    \end{circuitikz}
\end{document}

输出：

在此处输入图片描述

答案1

我不确定您是在询问标签还是命名，因为您在问题/评论中的某处使用了这两个术语，而它们是相当不同的东西。

如果您希望标签的内容可配置，您只需定义一个键pgfkeys并使用该值代替固定文本。

带有自定义标签的形状

具有自定义和默认标签的形状

\documentclass[border=10pt]{standalone}

\usepackage{circuitikz}
\usetikzlibrary{ext.paths.ortho}

\pgfdeclareshape{myIC}{
  % define saved anchor
  \anchor{center}{\pgfpointorigin}
  % Pins
  \savedanchor\myICpinA{\pgfpoint{-30}{10}}
  \anchor{PinA}{\myICpinA}
  \savedanchor\myICpinB{\pgfpoint{-30}{-10}}
  \anchor{PinB}{\myICpinB}
  \savedanchor\myICpinC{\pgfpoint{30}{0}}
  \anchor{PinC}{\myICpinC}
  \foregroundpath{
    \pgfpathrectanglecorners{\pgfpoint{-30}{-30}}{\pgfpoint{30}{30}}
    \pgfusepath{draw}
    \pgftext[left,  at={\myICpinA}]{PinA}
    \pgftext[left,  at={\myICpinB}]{PinB}
    \pgftext[right, at={\myICpinC}]{PinC}
    % my static label
    \pgftext[center, at={\pgfpoint{0}{35}}]{\small\textcolor{black}{\pgfkeysvalueof{/mm/myLabel}}}
  }
}
\pgfqkeys{/mm}{myLabel/.initial=myIClabel}

\begin{document}
\begin{circuitikz}
  % Instance of the custom component in red
  \draw (0,0) node[myIC, red, /mm/myLabel=coch] (myIC1) {};
  % Another instance in green
  \draw (3,0) node[myIC, green, /mm/myLabel=gwyrdd] (myIC2) {};
  % Yet another instance in blue
  \draw (6,0) node[myIC, blue, /mm/myLabel=glas] (myIC3) {};
\end{circuitikz}
\begin{circuitikz}
  % Instance of the custom component in red
  \draw (0,0) node[myIC, red, /mm/myLabel=coch] (myIC1) {};
  % Another instance in green
  \draw (3,0) node[myIC, green, /mm/myLabel=gwyrdd] (myIC2) {};
  % Yet another instance in blue
  \draw (6,0) node[myIC, blue, /mm/myLabel=glas] (myIC3) {};
  \draw (myIC1.PinC) -|- (myIC2.PinA);
  \draw (9,0) node[myIC, magenta] (myIC4) {};
\end{circuitikz}
\end{document}

如果您希望能够命名 PGF/Ti 中的节点钾从 Z 意义上讲，您已经拥有它并且正在使用它。但是，您的形状显然具有非标准锚点，因此您可以稍后使用这些节点，但只能使用它们实际具有的锚点。

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