% `smpsubf.tex' - a sample of subfigure usage 
%
% see epslatex.{ps,pdf} in the info directory of the CTAN for
% more discussion on figure placement, usage, etc.
%
\documentclass{aiaa}% use draft mode to check for
                    % over-full boxes (big black lines).

% declare new lengths that are used for computing subfigure
% layouts when doing up-down, left-right ordered tables of subfigures.

\newlength{\subfigwidth}% subfigure width
\newlength{\subfigcolsep}% separation between subfigures
\setlength{\subfigcolsep}{2\tabcolsep}% tie to that used for tabular

% define a command that creates meaningless blocks of text.
% use is, for example, \replicate{4}{text} where `4' is the
% number of times to repeat the filler `text'.

\makeatletter
\newcounter{numrepeat}
\newcommand{\replicate}[2]{\par
 \setcounter{numrepeat}{#1}\relax
 \@whilenum \value{numrepeat} > 0 \do
  {{#2}\addtocounter{numrepeat}{-1}}\par}
\makeatother

% make a command to be the filler text
% for the replicate command above: 

\newcommand{\filler}%
  {\em More text and even more text and even more text.
   Followed by some other stuff.
   Then adding yet additional material.
   Lets now change gears and talk about some other stuff for a while.
   I am sick-to-death of this other bit of rambling,
   and besides I need more material.}

\title{Some Subfigure Layout Choices}
\author{Bil Kleb\\
       {\it NASA Langley Research Center, Hampton,~Virginia,~23681}}

\begin{document}

\maketitle

The purpose of this document is to present a number
of different subfigure layout options.  The methods are currently
rather {\em ad hoc}, but future versions should make this sort
of thing more automatic and remove the requirement for
fiddling on a case-by-case basis.


\section{Two stacked figures}

Let's start off with a simple one: two figures stacked one atop the
other as shown in Fig.~\ref{fig:3f}.
\begin{figure}
  \begin{subfigmatrix}{1}
    \subfigure[The first one. ]{\incfig{smpfig}}
    \subfigure[The second one.]{\incfig{smpfig}}
  \end{subfigmatrix}
  \caption{Two, stacked subfigures.}
  \label{fig:3f}
\end{figure}
\replicate{3}{\filler}


\section{Six Figures}

\subsection{Up-down, Left-right Ordering}

This is some text, referencing Fig.~\ref{fig:udlr}. Note that
the order of the sub figures is up-down, then left-right.
Beware that alignment will be thrown off if the subcaptions are
typeset with differing numbers of lines, i.e., a long subcaption
and a short subcaption and the \texttt{[b]} alignment option for the
minipages are not used.
\begin{figure}
  \setlength{\subfigwidth}{.5\linewidth}
  \addtolength{\subfigwidth}{-.5\subfigcolsep}
  \vspace*{-\subfigtopskip}
  \begin{minipage}[b]{\subfigwidth}
    \subfigure[The first one. ]{\incfig{smpfig}}
  \end{minipage}
  \begin{minipage}[b]{\subfigwidth}
    \setcounter{subfigure}{3}
    \subfigure[The fourth one.]{\incfig{smpfig}}
  \end{minipage}
  \begin{minipage}[b]{\subfigwidth}
    \setcounter{subfigure}{1}
    \subfigure[The second one.]{\incfig{smpfig}}
  \end{minipage}
  \begin{minipage}[b]{\subfigwidth}
    \setcounter{subfigure}{4}
    \subfigure[The fifth one. ]{\incfig{smpfig}}
  \end{minipage}
  \begin{minipage}[b]{\subfigwidth}
    \setcounter{subfigure}{2}
    \subfigure[The third one. ]{\incfig{smpfig}}
  \end{minipage}\hfill
  \begin{minipage}[b]{\subfigwidth}
    \setcounter{subfigure}{5}
    \subfigure[The sixth one. ]{\incfig{smpfig}}
  \end{minipage}
  \caption{Up-down ordering of the subfigures
           using the minipage environment.}
  \label{fig:udlr}
\end{figure}
\replicate{4}{\filler}

\subsection{Left-Right, Up-Down Ordering}

Now, if we wanted the ordering to be left-right, then
up-down, we could use the tabular environment. This
is how Fig.~\ref{fig:lrud} was generated.
\begin{figure}
  \begin{subfigmatrix}{2}
    \subfigure[The first one. ]{\incfig{smpfig}}
    \subfigure[The second one.]{\incfig{smpfig}}
    \subfigure[The third one. ]{\incfig{smpfig}}
    \subfigure[The fourth one.]{\incfig{smpfig}}
    \subfigure[The fifth one. ]{\incfig{smpfig}}
    \subfigure[The sixth one. ]{\incfig{smpfig}}
  \end{subfigmatrix}
  \caption{Ordering the subfigures from left-to-right, then
    up-down using the tabular environment.}
  \label{fig:lrud}
\end{figure}
\replicate{4}{\filler}

\section{Eight Figures Spanning Both Columns}

This Fig.~\ref{fig:long} shows the method of `continuing'
the figure onto another page.
\begin{figure*}
  \begin{subfigmatrix}{2}
    \subfigure[The first one. ]{\incfig{smpfig}}
    \subfigure[The second one.]{\incfig{smpfig}}
    \subfigure[The third one. ]{\incfig{smpfig}}
    \subfigure[The fourth one.]{\incfig{smpfig}}
    \subfigure[The fifth one. ]{\incfig{smpfig}}
    \subfigure[The sixth one. ]{\incfig{smpfig}}
  \end{subfigmatrix}
  \caption{Ordering the subfigures from left-to-right, then
    up-down using the tabular environment.}
  \label{fig:long}
\end{figure*}
\addtocounter{figure}{-1}
\setcounter{subfigure}{6}
\begin{figure*}
  \begin{subfigmatrix}{2}
    \subfigure[The seventh one.]{\incfig{smpfig}}
    \subfigure[The eighth one. ]{\incfig{smpfig}}
  \end{subfigmatrix}
  \caption{Concluded.}
\end{figure*}
\replicate{4}{\filler}


\section{Nine Subfigures}

\subsection{Up-down, Left-right Ordering}

This is some text, referencing Fig.~\ref{fig:3ud3lr}. Note that
the order of the sub figures is up-down, then left-right.
\begin{figure}[htb!]
  \setlength{\subfigwidth}{.333\linewidth}
  \addtolength{\subfigwidth}{-.667\subfigcolsep}
  \vspace*{-\subfigtopskip}
  \begin{minipage}[b]{\subfigwidth}
    \subfigure[The first.]{\incfig{smpfig}}
  \end{minipage}
  \begin{minipage}[b]{\subfigwidth}
    \setcounter{subfigure}{3}
    \subfigure[The fourth.]{\incfig{smpfig}}
  \end{minipage}
  \begin{minipage}[b]{\subfigwidth}
    \setcounter{subfigure}{6}
    \subfigure[The seventh.]{\incfig{smpfig}}
  \end{minipage}
  \begin{minipage}[b]{\subfigwidth}
    \setcounter{subfigure}{1}
    \subfigure[The second.]{\incfig{smpfig}}
  \end{minipage}
  \begin{minipage}[b]{\subfigwidth}
    \setcounter{subfigure}{4}
    \subfigure[The fifth.]{\incfig{smpfig}}
  \end{minipage}
  \begin{minipage}[b]{\subfigwidth}
    \setcounter{subfigure}{7}
    \subfigure[The eighth.]{\incfig{smpfig}}
  \end{minipage}
  \begin{minipage}[b]{\subfigwidth}
    \setcounter{subfigure}{2}
    \subfigure[The third.]{\incfig{smpfig}}
  \end{minipage}\hfill
  \begin{minipage}[b]{\subfigwidth}
    \setcounter{subfigure}{5}
    \subfigure[The sixth.]{\incfig{smpfig}}
  \end{minipage}\hfill
  \begin{minipage}[b]{\subfigwidth}
    \setcounter{subfigure}{8}
    \subfigure[The ninth.]{\incfig{smpfig}}
  \end{minipage}
  \caption{Up-down ordering of the subfigures
           using the minipage environment.}
  \label{fig:3ud3lr}
\end{figure}
\replicate{4}{\filler}

\subsection{Left-Right, Up-Down Ordering}

Now, if we wanted the ordering to be left-right, then
up-down, we could use the tabular environment. This
is how Fig.~\ref{fig:3lr3ud} was generated.  This figure spans both
columns, so it is most likely out of order (and appears near or
at the end of this document).
\begin{figure*}
  \begin{subfigmatrix}{3}
    \subfigure[The first.  ]{\incfig{smpfig}}
    \subfigure[The second. ]{\incfig{smpfig}}
    \subfigure[The third.  ]{\incfig{smpfig}}
    \subfigure[The fourth. ]{\incfig{smpfig}}
    \subfigure[The fifth.  ]{\incfig{smpfig}}
    \subfigure[The sixth.  ]{\incfig{smpfig}}
    \subfigure[The seventh.]{\incfig{smpfig}}
    \subfigure[The eighth. ]{\incfig{smpfig}}
    \subfigure[The ninth.  ]{\incfig{smpfig}}
  \end{subfigmatrix}
  \caption{Ordering the subfigures from
           left-to-right, then up-down
           using the tabular environment.}
  \label{fig:3lr3ud}
\end{figure*}
\replicate{4}{\filler}


\section{Two Small Subfigures and One Large One}

\subsection{A}

Next, we try two small figures with one large one.  This attempt
is shown in Fig.~\ref{fig:2s1l}.
\begin{figure}[htb!]
  \setlength{\subfigwidth}{.284\linewidth}% have to FIDDLE with this
  \addtolength{\subfigwidth}{-.5\subfigcolsep}
  \begin{minipage}[b]{\subfigwidth}
    \begin{subfigmatrix}{1}
      \subfigure[One.]{\incfig{smpfig}}
      \subfigure[Two.]{\incfig{smpfig}}
    \end{subfigmatrix}
  \end{minipage}
  \addtolength{\subfigwidth}{.5\subfigcolsep}
  \addtolength{\subfigwidth}{-\linewidth}
  \setlength{\subfigwidth}{-\subfigwidth}
  \addtolength{\subfigwidth}{-.5\subfigcolsep}
  \begin{minipage}[b]{\subfigwidth}
    \subfigure[The large one.]{\incfig{smpfig}}
  \end{minipage}
  \caption{Two small subfigures and a large one.}
  \label{fig:2s1l}
\end{figure}
\replicate{3}{\filler}

\subsection{B}

Figure~\ref{fig:1l2s} is the same, only with the large/small
positions swapped about the vertical axis.
\begin{figure}[htb!]
  \setlength{\subfigwidth}{.716\linewidth}% have to FIDDLE with this
  \addtolength{\subfigwidth}{-.5\subfigcolsep}
  \begin{minipage}[b]{\subfigwidth}
    \subfigure[The large one.]{\incfig{smpfig}}
  \end{minipage}
  \addtolength{\subfigwidth}{.5\subfigcolsep}
  \addtolength{\subfigwidth}{-\linewidth}
  \setlength{\subfigwidth}{-\subfigwidth}
  \addtolength{\subfigwidth}{-.5\subfigcolsep}
  \begin{minipage}[b]{\subfigwidth}
    \begin{subfigmatrix}{1}
        \subfigure[One.]{\incfig{smpfig}}
        \subfigure[Two.]{\incfig{smpfig}}
    \end{subfigmatrix}
  \end{minipage}
  \caption{One large subfigure beside two small ones.}
  \label{fig:1l2s}
\end{figure}
\replicate{1}{\filler}

\subsection{C}

Now, for a slightly different effect, two subfigures on top with
a large one on the bottom, see Fig.~\ref{fig:2st1l}.
\begin{figure}[htb!]
  \begin{subfigmatrix}{2}
    \subfigure[One.]{\incfig{smpfig}}
    \subfigure[Two.]{\incfig{smpfig}}
  \end{subfigmatrix}%
  \begin{subfigmatrix}{1}
    \centering\subfigure[The large one.]{\incfig{smpfig}}
  \end{subfigmatrix}
  \caption{Two smaller subfigures over a larger one.}
  \label{fig:2st1l}
\end{figure}
\replicate{1}{\filler}

\subsection{D}

And, of coarse the old large subfigure on top with
two subfigures beneath. Fig.~\ref{fig:1lt2sb} demonstrates
this one.
\begin{figure*}[htb!]
  \begin{subfigmatrix}{1}
    \subfigure[The large one.]{\incfig{smpfig}}
  \end{subfigmatrix}
  \begin{subfigmatrix}{2}
    \subfigure[One.]{\incfig{smpfig}}
    \subfigure[Two.]{\incfig{smpfig}}
  \end{subfigmatrix}
  \caption{One large subfigure above two smaller ones.}
  \label{fig:1lt2sb}
\end{figure*}
\replicate{2}{\filler}

\subsection{E}

Steve Alter prompted Figure~\ref{f:twobytwo}: two with two on the side.
\begin{figure*}
%
  \newlength{\firstfigwidth}
  \newlength{\secondfigwidth}
  \newlength{\thirdfigwidth}
%
  \setlength{\firstfigwidth}{0.39745\linewidth}%  FIDDLE with these
  \setlength{\secondfigwidth}{0.39745\linewidth}% two numbers
%
  \setlength{\thirdfigwidth}{\linewidth}
  \addtolength{\thirdfigwidth}{-4\tabcolsep}
  \addtolength{\thirdfigwidth}{-\firstfigwidth}
  \addtolength{\thirdfigwidth}{-\secondfigwidth}
%
  \begin{minipage}[t]{\firstfigwidth}
    \subfigure[Representative planes of X34 viscous grid.]
              {\incfig{smpfig}}
  \end{minipage}% note: `%'s are important in this region
  \hspace{2\tabcolsep}%
  \begin{minipage}[t]{\secondfigwidth}
     \subfigure[Meridnal plane.]
               {\incfig{smpfig}}
  \end{minipage}% note: `%'s are important in this region
  \hspace{2\tabcolsep}%
  \begin{minipage}[b]{\thirdfigwidth}
    \begin{subfigmatrix}{1}
     \subfigure[Wing root.]{\incfig{smpfig}}
     \subfigure[Wing tip.]{\incfig{smpfig}}
    \end{subfigmatrix}
  \end{minipage}
%
  \caption{X34 volume grid used for viscous computations.}
  \label{f:twobytwo}
%
\end{figure*}
\replicate{3}{\filler}

\end{document}