\documentclass[10pt]{article}
\usepackage{tikz} 
%\usepackage{pgfplots}

\usetikzlibrary{arrows,positioning,decorations,snakes} 
\usetikzlibrary{decorations}
\usepackage{xepersian}
\settextfont[Scale=1.1]{XB Zar}
\setdigitfont{Yas}

\begin{document}
\begin{tikzpicture}[thick]
\draw (0,3) -- (3,3);
\draw[decorate,decoration=zigzag] (0,2.5) -- (3,2.5);
\draw[decorate,decoration=brace] (0,2) -- (3,2);
\draw[decorate,decoration=triangles] (0,1.5) -- (3,1.5);
\draw[decorate,decoration={coil,segment length=4pt}] (0,1) -- (3,1);
\draw[decorate,decoration={coil,aspect=0}] (0,.5) -- (3,.5);
\draw[decorate,decoration={expanding waves,angle=6}] (0,0) -- (3,0);

\end{tikzpicture}

\begin{tikzpicture}
[decoration=snake,
line around/.style={decoration={pre length=#1,post length=#1}}]
\draw[->,decorate] (0,0) -- ++(3,0);
\draw[->,decorate,line around=5pt] (0,-5mm) -- ++(3,0);
\draw[->,decorate,line around=1cm] (0,-1cm) -- ++(3,0);
\end{tikzpicture}


\begin{tikzpicture}
\draw [->,decorate,
decoration={snake,amplitude=.4mm,segment length=2mm,post length=1mm}]
(0,0) -- (3,0)
node [above,text width=2cm,align=center,midway]
{
\rl{متن روی شکل مارمانند}
};
\end{tikzpicture}


\begin{tikzpicture}[very thick]
\draw [decorate,
decoration={brace}]
(0,0) -- (3,0)
node [above,text width=3cm,align=center,midway]
{$\Theta_{\omega}=45^{\circ}$
};
\end{tikzpicture}

%
%\pgfplotsset{width=7cm,compat=1.3}
%\begin{tikzpicture}
%\begin{axis}[
%xlabel=$x$,
%ylabel={$f(x) = x^2 - x +4$}
%]
%% use TeX as calculator:
%\addplot {x^2 - x +4};
%\end{axis}
%\end{tikzpicture}


\end{document}