如何创建不同的地面符号？

Question

我已经阅读过关于创建自定义地面符号。我还没有技能来编辑针对此问题提出的解决方案。我正在尝试获得如下图所示的地面：

以下是一个例子：

    \documentclass{standalone}
    \usepackage{circuitikz}
    \makeatletter
    \pgfdeclareshape{ground}{
     \anchor{center}{
      \pgfpointorigin
    }
    \behindforegroundpath{      


     \pgf@circ@res@step=\ctikzvalof{monopoles/ground/width}\pgf@circ@Rlen

\pgfscope       
    \pgfpathmoveto{\pgfpointorigin}
    \pgfpathlineto{\pgfpoint{0pt}{-\pgf@circ@res@step}}
    \pgfusepath{draw}

    \pgfsetlinewidth{6\pgflinewidth} % thickness

    \pgfpathmoveto{\pgfpoint{-\pgf@circ@res@step}{-\pgf@circ@res@step}}

    \pgfpathlineto{\pgfpoint{\pgf@circ@res@step}{-\pgf@circ@res@step}}
    \pgfusepath{draw}                       
     \endpgfscope
     }
     }
     \makeatother

    \begin{document}
    \begin{circuitikz}[american voltages]
    \draw 
    (0,0) node [ground] {}
  to [V] (0,2)
    ;
    \end{circuitikz}
    \end{document}

Answer 1

\documentclass{standalone}
\usepackage{circuitikz}
\makeatletter
\pgfdeclareshape{ground}{
 \anchor{center}{
  \pgfpointorigin
}
\behindforegroundpath{      


 \pgf@circ@res@step=\ctikzvalof{monopoles/ground/width}\pgf@circ@Rlen

\pgfscope       
\pgfpathmoveto{\pgfpointorigin}
\pgfpathlineto{\pgfpoint{0pt}{-\pgf@circ@res@step}}
\pgfusepath{stroke}                       

\pgfpathmoveto{\pgfpoint{-\pgf@circ@res@step}{-\pgf@circ@res@step}}
\pgfpathlineto{\pgfpoint{\pgf@circ@res@step}{-\pgf@circ@res@step}}

\pgfpathmoveto{\pgfpoint{-0.67\pgf@circ@res@step}{-1.5\pgf@circ@res@step}}
\pgfpathlineto{\pgfpoint{0.67\pgf@circ@res@step}{-1.5\pgf@circ@res@step}}

\pgfpathmoveto{\pgfpoint{-0.33\pgf@circ@res@step}{-2\pgf@circ@res@step}}
\pgfpathlineto{\pgfpoint{0.33\pgf@circ@res@step}{-2\pgf@circ@res@step}}
\pgfusepath{stroke}                       
 \endpgfscope
 }
 }
 \makeatother

\begin{document}
\begin{circuitikz}[american voltages]
\draw 
(0,0) node [ground] {}
to [V] (0,2)
;
\end{circuitikz}
\end{document}