Latex中figure标题格式的变换

\begin{figure}[th]
\psfrag{gamma=1}[c][c][0.8]{$\gamma=1$}
\psfrag{gamma=10}[c][c][0.8]{$\gamma=10$}
\psfrag{gamma=100}[c][c][0.8]{$\gamma=100$}
%\psfrag{time t
%(s)}[c][c][0.8]{time $t$ (s)}
\centering
\includegraphics[width=0.31\columnwidth]{cpt2err1cmp.eps}
\includegraphics[width=0.31\columnwidth]{cpt2err10cmp.eps}
\includegraphics[width=0.31\columnwidth]{cpt2err100cmp.eps}
\caption{Computational error $\|x(t)-x^*(t)\|$ of ZNN
(\ref{eqn.NNmodel}) with different $\gamma$.}\label{cpt2fig.errcmp}
\end{figure}





\begin{figure}[t]
\psfrag{e}[c][c][0.9]{$e_i$} \psfrag{f(e)}[c][c][0.9]{$\phi(e_i)$}
\psfrag{0}[c][c][0.8]{0} \psfrag{1}[c][c][0.8]{1}
\psfrag{-1}[c][c][0.8]{-1} \psfrag{Linear
function}[c][c][0.8]{Linear function}
\psfrag{Sigmoid}[c][c][0.8]{Sigmoid} \psfrag{Power
function}[c][c][0.8]{Power function}
\psfrag{Power-Sigmoid}[c][c][0.8]{Power-sigmoid} \makeatletter
%%%%%%%%%格式变换%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\long\def\@makecaption#1#2{%
\vskip\abovecaptionskip
\sbox\@tempboxa{#1\quad #2}%
\ifdim \wd\@tempboxa >\hsize
   #1\quad #2\par
\else
   \global \@minipagefalse
   \hb@xt@\hsize{\hfil\box\@tempboxa\hfil}%
\fi \vskip\belowcaptionskip} \makeatother
%%%%%%%%%格式变换结束%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\centering\includegraphics[width=0.585\columnwidth]{cpt2af.eps}
\caption{\hspace{-3.5mm}.\normalsize \hspace{1mm} Activation
functions $\phi(\cdot)$ used in neural networks.}\label{cpt2fig.afs}
\end{figure}

%在标题处可以通过\hspace{-3.5mm}.\normalsize \hspace{1mm}变换。