latex画两个并列的图

\begin{figure}[t]
    \vspace{-0.1in}
    \captionsetup[subfigure]{skip = 0pt}
    \centering
    \subfloat[Partition Overview]{\includegraphics[width = 1.5in]{fig/partition.eps}\label{fig:partition}}\ \
    \hspace{3pt}
    \subfloat[VP-Tree Structure]{\includegraphics[width = 1.5in]{fig/vptree.pdf}\label{fig:tree}}\ \
    \vspace{-0.05in}
    \caption{An illustrative example of VP-Tree Structure.}
    \label{fig:vpt}
    \vspace{-0.1in}
\end{figure}