如何全局更改 circuitikz 中的所有箭头提示？

Question

我尝试过这个：

\documentclass{scrartcl}
\usepackage[european, cuteinductors]{circuitikz}
\usetikzlibrary{arrows.meta, bending}
%wished arrow tip
\tikzset{> = Latex}

\begin{document}
  \begin{circuitikz}
    %this circuit shouldn't make sense
    \draw (0, 0) to [V = $U$, i = $I$] (0, 3)
                 to [vR = $R$, v<= $u_R$, i<= $i$] (3, 3)
                 to [C = $C$, v<= $u_C$, i<= $i$] (6, 3)
                 to [closing switch, v<= $u$, i<= $i$] (9, 3)
                 to [sV = $u$, i = $i$] (9, 0)
                 to [I<= $I$, v = $u$] (6, 0)
                 to [L = $L$, v<= $u_L$, i<= $i$] (3, 0)
                 to [sI<= $i$, v = $u$] (0, 0)
          (3, 3) to [opening switch, v = $u$, *-*] (3, 0)
          (6, 3) to [open, v = $u$, o-o] (6,0);
    %extra nodes for the mesh arrow
    \node (left of L)    at (3.5, .75) {M};
    \node (right of L) at (5.5, .75) {};
    \node (left of C)    at (3.5, 2) {};
    \node (right of C) at (5.5, 2) {};
    %the mesh arrow
    \draw
      [->] (right of L.west) .. controls (right of C.west) and (left of C.east)
                             .. (left of L.east);
  \end{circuitikz}
\end{document}

但它不起作用。有什么建议吗？

提前感谢您的帮助和努力！

Answer 1

不幸的是，circuitikz 中使用的箭头形状实际上是一个节点，其形状currarrow在包中定义。因此，没有简单的方法将形状更改为另一个箭头尖端。

您可以currarrow使用如下方式重新定义形状：

\makeatletter
\pgfdeclareshape{currarrow}{
    \anchor{center}{
        \pgfpointorigin
    }
    \behindforegroundpath{      

        \pgfscope
        \pgf@circ@res@step = \pgfkeysvalueof{/tikz/circuitikz/bipoles/length}
        \divide \pgf@circ@res@step by 16
        \pgfsetarrows{->}
        \pgfpathmoveto{\pgfpoint{-.7\pgf@circ@res@step}{0pt}}
        \pgfpathlineto{\pgfpoint{.8\pgf@circ@res@step}{0pt}}
        \pgfusepath{stroke}
        \endpgfscope
    }
}
\makeatother

此代码只是重新定义了形状，以使用默认箭头绘制一条简单的线条。\tikzset{> = Latex}然后使用即可获得预期的行为。