# [Tex/LaTex] Draw a closed liquid-droped shaped curve with TikZ

technical-drawingtikz-pgf

I am trying to draw a closed liquid-droped shaped curve using TikZ, but I don't know how. I tried to draw it using coordinates but I don't think that this is the solution. I am using

\documentclass{article}
\usepackage{tikz}

\begin{document}

\begin{figure}[H]
\centering
\begin{tikzpicture}
%\draw[very thick] (0,4) to [out=90,in=195] (0.1,3.9);
%\draw [shorten >=-1cm,shorten <=-1cm] (0,3) to [bend right=5](0.1,2.9);
\draw[orange, very thick] (0,4) -- (-0.1,3.5) -- (-0.3,3) -- (-0.65,2.7) -- (-0.55,2) -    - (-0.2,1.2) -- (0,0) -- (0.2,0.4) -- (1,1) -- (0.8,2.3) -- (0.5,2.8) -- (0.25,3.5) -- (0.1,4);
\end{tikzpicture}
\caption{Avalanche Multiplication}%
\label{fig:avalanche}%
\end{figure}
\end{document}


#### Best Answer

\documentclass{article}
\usepackage{tikz}
\begin{document}

\begin{figure}[h]
\centering
\begin{tikzpicture}

\draw[very thick, orange] (-0.1,5) .. controls (-4,-2) and (4,-2) .. (0.1,5);
\node at (0,3) {$+$};
\node at (0,2) {$+$};
\node at (0.5,2.5) {$-$};
\node at (-0.5,2.5) {$+$};
\node at (0.5,.5) {$-$};
\node at (-0.5,1.5) {$-$};
\node at (0.5,1) {$-$};
\node at (0.5,2.5) {$-$};
\node at (-0.5,.5) {$+$};
\end{tikzpicture}
\caption{Avalanche Multiplication}%
\label{fig:avalanche}%
\end{figure}
\end{document}