This is my code:
Code: Select all
\begin{figure}[h!]
\begin{center}
\begin{tikzpicture} [>=latex]
%\draw[->] (-4.0 cm, 0.0 cm) -- (10.0 cm, 0.0 cm) node[below]{$\omega$} ;
%\draw[->] (0.0 cm, 0.0 cm) -- (0.0 cm, 3.5 cm) node[right]{$S(\omega)$};
\draw[-, thin, dashed,rounded corners=0.14cm, name path=S]
(0.00cm, 3.0cm) --
(0.25cm, 3.0cm) --
(0.50cm, 2.0cm) --
(1.00cm, 1.0cm) --
(1.25cm, 0.8cm) --
(1.50cm, 0.5cm) --
(1.75cm, 0.4cm) --
(2.00cm, 0.4cm) --
(2.25cm, 0.3cm) --
(2.50cm, 0.3cm);
\path [name path=v] ( 0, 0) -- ( 0, 5);
\draw [->, name intersections={of=v and S, by=y}, thick] (0, 0cm) -- (y);
\path [name path=v1] ( 0.25, 0) -- ( 0.25, 5);
\draw [->, name intersections={of=v1 and S, by=X}, thick] (0.25, 0cm) -- (X);
\path [name path=v2] ( 0.5, 0) -- ( 0.5, 5);
\draw [->, name intersections={of=v2 and S, by=X}, thick] (0.5, 0cm) -- (X);
\end{tikzpicture}
\end{center}
\end{figure}