I have incorporate eps file in the latex, but the series are not shown properly. As in attached picture, the right is correct (shown by evince) and the left is what it looks in pdf generated by latex.

I used the following code to embed eps in the pdf file. What is the possible reason for this? how to fix it?
\begin{figure}[!ht]
\begin{center}
\includegraphics[width=4.5cm]{figures/p1-adversaries.eps}%
\end{center}%\vspace{-0.15in}
\caption{XXX}\label{exp:p1_adversaries}
\end{figure}

qtiplot(cells.es/Members/cpascual/docs/…) andscidavis(scidavis.sourceforge.net) that provide export facility directly in totikzcode (Qtiplot). – Harish Kumar Apr 20 '12 at 21:21