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circuitikz 中的 PIR 传感器组件

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circuitikz 中的 PIR 传感器组件

请问，我想在我的 circuitikz 图纸中添加一个 PIR（运动）传感器。我在官方手册或互联网上找不到任何东西，有什么想法吗？

答案1

以下代码定义了一个新的 circuitikz 形状以及一些有用的锚点。参数pir/height、pir/pitch和pir/width允许pir/radius更改新形状的大小。

\documentclass{article}

\usepackage{circuitikz}

\makeatletter
\ctikzset{
    pir/height/.initial=1.4cm,
    pir/pitch/.initial=0.6cm,
    pir/width/.initial=0.5cm,
    pir/radius/.initial=0.5cm
}
\pgfdeclareshape{pir}{
\anchor{center}{\pgfpointorigin}
\savedanchor\topleft{%
    \pgf@y=\pgfkeysvalueof{/tikz/circuitikz/pir/pitch}
    \pgf@x=\pgfkeysvalueof{/tikz/circuitikz/pir/width}
    \pgf@x=-1.5\pgf@x
}
\anchor{power}{\topleft}
\anchor{out}{\topleft\pgf@y=0pt}
\anchor{ground}{\topleft\pgf@y=-\pgf@y}
\savedanchor\top{%
    \pgf@y=\pgfkeysvalueof{/tikz/circuitikz/pir/height}
    \pgf@y=.5\pgf@y
    \pgf@x=\pgfkeysvalueof{/tikz/circuitikz/pir/width}
    \pgf@x=-.5\pgf@x
}
\anchor{north}{\top}
\anchor{south}{\top\pgf@y=-\pgf@y}
\anchor{east}{\pgf@y=0pt\pgf@x=\pgfkeysvalueof{/tikz/circuitikz/pir/radius}}

\savedanchor\topleftbox{%
    \pgf@y=\pgfkeysvalueof{/tikz/circuitikz/pir/height}
    \pgf@y=0.5\pgf@y
    \pgf@x=\pgfkeysvalueof{/tikz/circuitikz/pir/width}
    \pgf@x=-\pgf@x
}

\foregroundpath{
    \pgfsetcolor{\pgfkeysvalueof{/tikz/circuitikz/color}}
    \pgfsetlinewidth{2\pgflinewidth} 

    \topleftbox
    \pgf@circ@res@up=\pgfkeysvalueof{/tikz/circuitikz/pir/height}
    \pgf@circ@res@up=0.5\pgf@circ@res@up
    \pgf@circ@res@down=-\pgf@circ@res@up
    \pgf@circ@res@left=\pgfkeysvalueof{/tikz/circuitikz/pir/width}
    \pgf@circ@res@left=-\pgf@circ@res@left
    \pgf@circ@res@right=0cm
    \pgfpathrectanglecorners{
        \pgfpoint{\pgf@circ@res@left}{\pgf@circ@res@down}
    }{
        \pgfpoint{\pgf@circ@res@right}{\pgf@circ@res@up}
    }
    \pgf@circ@res@right=\pgf@circ@res@left
    \pgfpathmoveto{\pgfpoint{0pt}{\pgfkeysvalueof{/tikz/circuitikz/pir/radius}}}
    \pgfpatharc{90}{-90}{\pgfkeysvalueof{/tikz/circuitikz/pir/radius}}
    \pgfusepath{draw} 
    \topleft
    \pgf@circ@res@up=\pgf@y
    \pgf@circ@res@left=\pgf@x
    \pgfpathmoveto{\pgfpoint{\pgf@circ@res@left}{ \pgf@circ@res@up}}
    \pgfpathlineto{\pgfpoint{\pgf@circ@res@right}{ \pgf@circ@res@up}}
    \pgfpathmoveto{\pgfpoint{\pgf@circ@res@left}{0pt}}
    \pgfpathlineto{\pgfpoint{\pgf@circ@res@right}{0pt}}
    \pgfpathmoveto{\pgfpoint{\pgf@circ@res@left}{-\pgf@circ@res@up}}
    \pgfpathlineto{\pgfpoint{\pgf@circ@res@right}{-\pgf@circ@res@up}}
    \pgfsetlinewidth{.5\pgflinewidth} 
    \pgfusepath{draw} 
}}
\makeatother

\begin{document}
    \begin{circuitikz} 
        \draw (0,0) node[pir] (pir) {}
            (pir.power) node[anchor=east] {power}
            (pir.ground) node[anchor=east] {ground}
            (pir.out) node[anchor=east] {output}
            (pir.north) node[anchor=south] {north}
            (pir.south) node[anchor=north] {south}
            (pir.east) node[anchor=west] {east};
    \end{circuitikz}

\end{document}

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