How to change number of arcs in an inductor schematics?

Question

Since Czech standards (ČSN) do not accept the IEC standards, I have to draw an inductor with only 3 arcs. Is there any solution for CircuiTikZ? I have already saw some papers typsetted with LaTeX using CircuiTikZ, so I am sure, there is way how to tackle with it.

Thanks for any help.

Answer 1

The good news is that you can specify the number of coils with the american inductor and the cute inductor. The bad news is that there is a bug in the american inductor code.

\documentclass{standalone}
\usepackage{circuitikz}

\ctikzset{bipoles/cuteinductor/coils=3}
\ctikzset{bipoles/americaninductor/coils=3}
\ctikzset{bipoles/vcuteinductor/coils=3}% variable
\ctikzset{bipoles/vamericaninductor/coils=3}

\begin{document}
\begin{circuitikz}
\draw (0,0) to[cute inductor] (2,0)
      (0,1) to[american inductor] (2,1)
      (0,2) to[variable cute inductor] (2,2)
      (0,3) to[variable american inductor] (2,3);
\end{circuitikz}
\end{document}

---

Here is the bug fix for the american inductor:

\makeatletter
%% american inductor

\pgfcircdeclarebipole{}{\ctikzvalof{bipoles/americaninductor/height 2}}{americaninductor}{\ctikzvalof{bipoles/americaninductor/height}}{\ctikzvalof{bipoles/americaninductor/width}}{
    \pgf@circ@res@step=\ctikzvalof{bipoles/americaninductor/width}\pgf@circ@Rlen
    \pgfsetlinewidth{\pgfkeysvalueof{/tikz/circuitikz/bipoles/thickness}\pgfstartlinewidth} 
    \pgftransformationadjustments
    \advance \pgf@circ@res@step by \pgfhorizontaltransformationadjustment\pgflinewidth
    \divide \pgf@circ@res@step by \ctikzvalof{bipoles/americaninductor/coils}
    \divide \pgf@circ@res@step by 2
    \pgf@circ@res@other = \ctikzvalof{bipoles/americaninductor/coil height}\pgf@circ@Rlen

    \pgfpathmoveto{\pgfpoint{\pgf@circ@res@left-\pgfhorizontaltransformationadjustment*0.5*\pgflinewidth}{-\pgfverticaltransformationadjustment*0.4*\pgfstartlinewidth}}%correct value would be 0.5 but arcs are not really flat, therefore 0.4 is better is (almost) all cases
  \foreach \x in {1,...,\ctikzvalof{bipoles/americaninductor/coils}}
    {\pgfpatharc{180}{0}{\pgf@circ@res@step and \pgf@circ@res@other}}
    \pgfsetbuttcap
    \pgfsetbeveljoin
    \pgfusepath{stroke}
}
\makeatother