# Arrow between two polygons

I want to draw an implication arrow between these two figure

\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{tikz}
\usepackage{graphicx}

\begin{document}

\section{Introduction}

\begin{tikzpicture}[thick,scale=3.5]
\coordinate (C1) at (2.8,0);
\coordinate (C2) at (2.8,-0.3);
\coordinate (C3) at (3.1,-0.5);
\coordinate (C4) at (3.4, -0.15);
\coordinate (C5) at (3.15,0);

\draw(C1) -- (C2) -- (C3) -- (C4) -- (C5) -- cycle ;

\node at (barycentric cs:C1=-5,C2=45,C3=6.5,C4=14,C5=3) {$\Gamma$};

\coordinate (A1) at (2.0,0.2);
\coordinate (A2) at (1.8,0);
\coordinate (A3) at (1.8,-0.3);
\coordinate (A4) at (2.1,-0.5);
\coordinate (A5) at (2.4, -0.15);

\coordinate (B1) at (1.6,0);
\coordinate (B2) at (2.4, 0);

\draw(A1) -- (A2) -- (A3) -- (A4) -- (A5) -- cycle ;
\draw(B1) -- (B2);

\path (A1.south) |- (A5.west) node [midway,above] {$\Gamma$};
\node at (barycentric cs:A1=25,A2=1,A3=4.5,A4=3,A5=2) {$\Delta$};
\node at (barycentric cs:A1=-25,A2=55,A3=0,A4=30,A5=-14) {$\Phi(M)$};

\end{tikzpicture}
\end{document}


A similar question has been asked Horizontal icons between subfloats but this was for \includegraphics command. I was unable to apply it for my case.

Technically this is just one figure. You could either place the symbol by hand or use the calc library to make sure it is really in the middle, which I would propose to do here.

\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{tikz}
\usetikzlibrary{calc}

\begin{document}

\section{Introduction}

\begin{tikzpicture}[thick,scale=3.5]
\coordinate (C1) at (2.8,0);
\coordinate (C2) at (2.8,-0.3);
\coordinate (C3) at (3.1,-0.5);
\coordinate (C4) at (3.4, -0.15);
\coordinate (C5) at (3.15,0);

\draw(C1) -- (C2) -- (C3) -- (C4) -- (C5) -- cycle ;

\node at (barycentric cs:C1=-5,C2=45,C3=6.5,C4=14,C5=3) (Gamma1){$\Gamma$};

\coordinate (A1) at (2.0,0.2);
\coordinate (A2) at (1.8,0);
\coordinate (A3) at (1.8,-0.3);
\coordinate (A4) at (2.1,-0.5);
\coordinate (A5) at (2.4, -0.15);

\coordinate (B1) at (1.6,0);
\coordinate (B2) at (2.4, 0);

\draw(A1) -- (A2) -- (A3) -- (A4) -- (A5) -- cycle ;
\draw(B1) -- (B2);

\path (A1.south) |- (A5.west) node [midway,above] (Gamma2) {$\Gamma$};
\node at (barycentric cs:A1=25,A2=1,A3=4.5,A4=3,A5=2) {$\Delta$};
\node at (barycentric cs:A1=-25,A2=55,A3=0,A4=30,A5=-14) {$\Phi(M)$};

\node at ($(C2)!0.5!(B2)$) {$\Longrightarrow$};

\end{tikzpicture}
\end{document}


\node[right = 5pt of A5] {$\implies$};


This is the result

And the code

\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{tikz}
\usepackage{graphicx}

\usetikzlibrary{positioning}
\usepackage{amsmath}

\begin{document}

\section{Introduction}

\begin{tikzpicture}[thick,scale=3.5]
\coordinate (C1) at (2.8,0);
\coordinate (C2) at (2.8,-0.3);
\coordinate (C3) at (3.1,-0.5);
\coordinate (C4) at (3.4, -0.15);
\coordinate (C5) at (3.15,0);

\draw(C1) -- (C2) -- (C3) -- (C4) -- (C5) -- cycle ;

\node at (barycentric cs:C1=-5,C2=45,C3=6.5,C4=14,C5=3) {$\Gamma$};

\coordinate (A1) at (2.0,0.2);
\coordinate (A2) at (1.8,0);
\coordinate (A3) at (1.8,-0.3);
\coordinate (A4) at (2.1,-0.5);
\coordinate (A5) at (2.4, -0.15);

\coordinate (B1) at (1.6,0);
\coordinate (B2) at (2.4, 0);

\draw(A1) -- (A2) -- (A3) -- (A4) -- (A5) -- cycle ;
\draw(B1) -- (B2);

\path (A1.south) |- (A5.west) node [midway,above] {$\Gamma$};
\node at (barycentric cs:A1=25,A2=1,A3=4.5,A4=3,A5=2) {$\Delta$};
\node at (barycentric cs:A1=-25,A2=55,A3=0,A4=30,A5=-14) {$\Phi(M)$};

% arrow
\node[right = 5pt of A5] {$\implies$};

\end{tikzpicture}
\end{document}