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\documentclass{article}
\parskip = 2 pt
\oddsidemargin = 0 cm
\textwidth = 16 cm
\topmargin = -1 cm
\textheight = 24 cm
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% MANPAGE like description setting for options, use as
% \begin{Lentry} \item[text] text \end{Lentry}
\usepackage{ifthen,calc}
\newcommand{\entrylabel}[1]{\mbox{\textsf{#1}}\hfil}
\newenvironment{entry}
{\begin{list}{}
{\renewcommand{\makelabel}{\entrylabel}
\setlength{\labelwidth}{90pt}
\setlength{\leftmargin}{\labelwidth+\labelsep}
}
}
{\end{list}}
\newlength{\Mylen}
\newcommand{\Lentrylabel}[1]{%
\settowidth{\Mylen}{\textsf{#1}}%
\ifthenelse{\lengthtest{\Mylen > \labelwidth}}%
{\parbox[b]{\labelwidth} % term > labelwidth
{\makebox[0pt][l]{\textsf{#1}}\\}} %
{\textsf{#1}} %
\hfil\relax}
\newenvironment{Lentry}
{\renewcommand{\entrylabel}{\Lentrylabel}
\begin{entry}}
{\end{entry}}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{document}
\title{Boundary}
\author{Gabrielle Allen, Thomas Radke}
\date{2001}
\maketitle
\abstract{Output method using the jpeg format}
\section{Use}
Thorn IOJpeg provides 2D images from grid functions in jpeg format, these
images are currently intended to be used for two purposes:
\begin{itemize}
\item{Monitoring from Web Server} Jpeg images can be directly visualised
in the {\it viewport} provided by thorn {\tt CactusConnect/HTTPDExtra}. For
the images to be advertised to the Web Server the parameter {\tt iojpeg::mode = ``remove''} must be used.
\item{Constructing Movies} A series of jpeg movies can easily
be used to construct a time series movie (e.g. using the Unix utilities
{\tt convert} or {\tt xanim}). In this case the parameter {\tt iojpeg::mode = ``standard''} must be used.
\end{itemize}
Note that the parameter {\tt iojpeg::mode} determines whether a jpeg image is ccreated and kept for individual timesteps, or whether only the image from the current data is kept. Only in the second case is the jpeg file {\tt advertised} (otherwise there are potentially thousands of files advertised to e.g. the {\tt HTTPD} thorn). Also note that using the standard mode and creating jpegs every iteration can quite quickly lead to {\it inode} problems on a machine.
We are planning to develop this thorn more to provide more features (eg
a range of 2D images from a 3D dataset, add possibility to save images for a movie and advertise current image).
% Automatically created from the ccl files by using gmake thorndoc
\include{interface}
\include{param}
\include{schedule}
\end{document}
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