有没有办法改变 circuitikz 中雨刮器的位置（默认是中间）？

Question

这是代码。默认值始终位于中间。

\documentclass[12pt,letterpaper]{article}    
\usepackage[left=20mm,top=30mm,bottom=30mm,right=20mm]{geometry}

\usepackage[siunitx]{circuitikz} % circuit package and  include electrical units in our labels


\begin{document}

\begin{center}
\begin{circuitikz} [american voltages, longpot/.style = {pR, resistors/scale=0.75,
resistors/width=1.6, resistors/zigs=6}] \draw
  (5,0) to
  (5,3) to [V, v<=10<\volt>,  a = $V_{source}$] (-1,3) --
  (-1,0) -- (1,0) to [longpot, a^ =  \SI{10} {k\ohm}, mirror] (3,0) -- (5,0)
  
  (-1,0) --
  (-1,-2) to [R, a = \SI{10} {k\ohm}]  (2,-2) -- (2,-0.4)
\end{circuitikz}
\end{center}

\end{document}

文件中仅提到了雨刮器的旋转。

Answer 1

请参阅 Circuitikz 手册第 3.5.1 节。它展示了如何使用雨刮器 pos 键来更改雨刮器的位置。

\documentclass[12pt,letterpaper]{article}    
\usepackage[left=20mm,top=30mm,bottom=30mm,right=20mm]{geometry}

\usepackage[siunitx]{circuitikz} % circuit package and  include electrical units in our labels


\begin{document}

\begin{center}
\begin{circuitikz} [american voltages, longpot/.style = {pR, resistors/scale=0.75,
resistors/width=1.6, resistors/zigs=6}] \draw
  (5,0) to
  (5,3) to [V, v<=10<\volt>,  a = $V_{source}$] (-1,3) --
  (-1,0) -- (1,0) to [longpot, wiper pos=.2, a^ =  \SI{10} {k\ohm}, mirror, n=mypot] (3,0) -- (5,0)
  
  (-1,0) --
  (-1,-2) to [R, a = \SI{10} {k\ohm}]  (1,-2) -| (mypot.wiper);
\end{circuitikz}
\end{center}

\end{document}

Answer 2

您可以使用resistor而不是pR，然后在路径末尾绘制箭头。（我用它Stealth[width=3pt, inset=1pt]来画箭头。

注意，我还使用 将您的坐标更改为相对坐标，以++(x,y)指定相对于前一个坐标的位置。这使得调整更容易。靠近末尾的坐标++(2.7,0)导致从前一个坐标向右移动 2.7 厘米。++(3,0)应该是您的原始坐标。

\documentclass[12pt,letterpaper]{article}    
\usepackage[left=20mm,top=30mm,bottom=30mm,right=20mm]{geometry}

\usepackage[siunitx]{circuitikz} % circuit package and  include electrical units in our labels


\begin{document}

\begin{center}
\begin{circuitikz} [american voltages, longpot/.style = {resistor, resistors/scale=0.75, resistors/width=1.6, resistors/zigs=6}] 
  \draw[-{Stealth[width=3pt, inset=1pt]}] (5,0) to ++(0,3)
  to [V, v<=10<\volt>,  a = $V_{source}$] ++(-6,0) -- ++(0,-3) -- ++ (2,0)
  to [longpot, a^ =  \SI{10} {k\ohm}, mirror] ++(2,0) -- ++(2,0)
  
  ++(-6,0) -- ++(0,-2) to [R, a = \SI{10} {k\ohm}]  ++(2.7,0) -- ++(0,1.8);
\end{circuitikz}
\end{center}

\end{document}