[Tex/LaTex] Circuitikz: polar capacitor terminals polarity labels are wrong

circuitikz

When using circuitikz to draw some circuit pictures, I noticed that the terminal polarity labels are incorrect (I believe) for polar capacitors. Consider the following:

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

\begin{document}
\begin{circuitikz}
   \draw (0,0) to [battery=\SI{9}{V}] (3,0)
               to [pC,v=$v_C$] (6,0);
\end{circuitikz}
\end{document}

When I compile this (circuitikz v2.4) I get the following picture:

polar capacitor

I believe that the rounded terminal should be the negative one and the straight terminal is the positive one. Am I missing anything?

Please forgive me if this is not the right place to post this. I noticed that the package author sometimes posts here, and so I thought that this might be appropriate, and also perhaps I'm not understanding something!

Best Answer

I am not quite sure what you are asking.

If you want to change rounded terminal's polarity always:

 \draw (0,0) to [battery=\SI{9}{V}] (3,0)
               to [pC,v^>=$v_C$] (6,0); %<--- change v= to v^>=

enter image description here

But if you want to change the polarity, then reverse the co-ordinates like this: 

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

\begin{document}
\begin{circuitikz}
  \draw (0,0) to  [battery=\SI{9}{V}] (3,0) ;
  \draw (6,0) to  [pC, v=$v_C$] (3,0) ; % <-----------co-ordinates reversed here
\end{circuitikz}
\end{document}

enter image description here

Related Question