Graphics, Figures & Tables ⇒ capacitor plates used as coordinates

[todeilatiberia]

Greetings,

How can I use the positive and the negative pins from a capacitor as reference to connect another parts in tikz?

Code: Select all

[pC, l=$C_{21}$, name=C21, -]

Is it possible also for the normal capacitors?

Code: Select all

[C, l=$C_{20}$, name=C20, -]

Thanks!

[rais]

you could access their `geographic' anchors, such as

Code: Select all

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

\begin{document}
\begin{circuitikz}
    \draw (0,0) to [pC, l=$C_{21}$, name=C21, -] ++(0,-1);
    \draw (2,0) to [C, l=$C_{20}$, name=C20, -] ++(0,-1);
    \draw (6,0) to [C, l=$C_{22}$, name=C22, -] ++(1,0);
    \draw[red, latex-] (C21.east) -- +(1,-1) node[right] {C21.east};
    \draw[blue, latex-] (C20.west) -- +(1,1) node[right] {C20.west};
    \draw[green!75!black, latex-] (C22.west) -- +(-1,1) node[above] {C22.west};
    \draw[green!75!black, latex-] (C22.east) -- +(1,1) node[above] {C22.east};
\end{circuitikz}
\end{document}

Note, that these anchors are given, before the shape may be rotated. Since the bipoles are defined from left (west) to right (east), "west" of a bipole may be facing north in your drawing...

KR
Rainer