gfx-circuits.sty

\ProvidesPackage{prettytex/gfx-circuits}
\RequirePackage{prettytex/gfx}


\newcommand{\circuitstyle}{european}
\DeclareOption{american}{\renewcommand{\circuitstyle}{american}}
\ProcessOptions\relax

\usepackage[\circuitstyle,nooldvoltagedirection]{circuitikz}

\tikzset{
  res/.style={european resistor=$R_{#1}$},
  ind/.style={cute inductor=$L_{#1}$},
  cap/.style={capacitor=$C_{#1}$},
  cur/.style={european current source=$I_{#1}$},
  vol/.style={european voltage source=$U_{#1}$},
  ctrc/.style={european controlled current source=$#1$},
  ctrv/.style={european controlled voltage source=$#1$},
  gnd/.style={rground},
  imp/.style={generic=$\underline{Z}_{#1}$},
  adm/.style={generic=$\underline{Y}_{#1}$},
  terminal/.style={draw,circle,inner sep=0pt,minimum size=.1cm,fill=white}
}

\ctikzset{
  voltage=straight,
  bipole current style/.style={color=red},
  bipole voltage style/.style={color=blue}
}

\tikzset{
  declare function={% in case of CVS which switches the arguments of atan2
      atan3(\a,\b)=ifthenelse(atan2(0,1)==90, atan2(\a,\b), atan2(\b,\a));
    },
  kinky cross radius/.initial=+.125cm,
  @kinky cross/.initial=+,
  kinky crosses/.is choice,
  kinky crosses/left/.style={@kinky cross=-},
  kinky crosses/right/.style={@kinky cross=+},
  kinky cross/.style args={(#1)--(#2)}{
      to path={
          let \p{@kc@}=($(\tikztotarget)-(\tikztostart)$),
          \n{@kc@}={atan3(\p{@kc@})+180} in
          -- ($(intersection of \tikztostart--{\tikztotarget} and #1--#2)!%
            \pgfkeysvalueof{/tikz/kinky cross radius}!(\tikztostart)$)
          arc [ radius     =\pgfkeysvalueof{/tikz/kinky cross radius},
              start angle=\n{@kc@},
              delta angle=\pgfkeysvalueof{/tikz/@kinky cross}180 ]
          -- (\tikztotarget)
        }
    }
}