如何才能增加开极圆的尺寸？

Question

如何ocirc在不影响其他组件的情况下增加开极的尺寸？手册中
有说明 \ctikzset{nodes width=0.15}，但这也会增加开关中 ocirc 的尺寸。

\documentclass[tikz, border=1cm]{standalone}
\usepackage[american, siunitx]{circuitikz}

\begin{document}
\begin{tikzpicture}[thick]

\ctikzset{nodes width=0.15}
\draw (0,5) node[ocirc] at (0,5){} to [I] ++ (2,0) to [cute closing switch] ++(2,0);

\end{tikzpicture}
\end{document}

Answer 1

您可以绘制一个规则的圆并inner sep手动设置。这类似于第 4.19.3 节中绘制彩色点的示例独立设计变压器线圈在里面手动的（在当前 1.6.0 版本中，此内容位于第 131 页）。

\documentclass{article}
\usepackage[american, siunitx]{circuitikz}

\begin{document}
\begin{tikzpicture}[thick]

\draw (0,5) node[circle, draw, fill=white, inner sep=3pt] at (0,5){} to [I] ++ (2,0) to [cute closing switch] ++(2,0);

\end{tikzpicture}
\end{document}

Answer 2

您还可以定义新的“极点说明符”，如下所示：

\documentclass[margin=3mm]{standalone}
\usepackage[american,siunitx,RPvoltages]{circuitikz}

\begin{document}

% you seems to like big poles...
\tikzset{% this definition is at tikz level, because
    % it will be used with a `node[... ]` element
        bigO/.style={ocirc, circuitikz/nodes width=0.1},
    }
\ctikzset{% define new poles style
    O-/.style={bipole nodes={bigO}{none}},
    O-O/.style={bipole nodes={bigO}{bigO}},
    -O/.style={bipole nodes={none}{bigO}},
}
\begin{circuitikz}
    \draw (0,0) to [I, O-] ++(2,0) 
        to [cute closing switch,-O] ++(2,0);
\end{circuitikz}

\end{document}