I want to use listings package (\usepackage{listings}) to show a matlab code in a paper (using elsarticle class) but the title is not aligned in center below the code. This happened after I added xleftmargin=3.5cm and xrightmargin=3.5cm to add margin from left and right. If I remove these two options, title appears at the center of page! How can I have both margin and center title with listings?
I used \centering and \begin{center}...\end{center} but they didn't work.
UPDATE: I found out that \usepackage{subcaption} is the problem. without it title will be centered. But I need subcaption!
my code:
\documentclass[3p,times]{elsarticle}
\usepackage{ecrc}
\volume{00}
\firstpage{1}
\journalname{Best Journal Ever}
\runauth{S. Gerami}
\jid{}
\jnltitlelogo{Best Journal Ever}
\CopyrightLine{2013}{Published by Elsevier Ltd.}
\usepackage{amssymb}
\usepackage[figuresright]{rotating}
\usepackage[ruled,vlined]{algorithm2e}
%%FOR MATH
\usepackage{amsthm}
\usepackage{amsmath}
\usepackage{amsfonts}
%%I NEED THESE PACKAGED FOR FIGURES AND SUBCAPTIONs
\usepackage{graphicx}
\usepackage{caption}
\usepackage{subcaption}
%%FOR CODES
\usepackage{listings}
\usepackage{color}
%%FOR TABLES
\usepackage{array}
\newcolumntype{L}[1]{>{\raggedright\let\newline\\\arraybackslash\hspace{0pt}}m{#1}}
\newcolumntype{C}[1]{>{\centering\let\newline\\\arraybackslash\hspace{0pt}}m{#1}}
\newcolumntype{R}[1]{>{\raggedleft\let\newline\\\arraybackslash\hspace{0pt}}m{#1}}
\usepackage{lipsum}
\begin{document}
\begin{frontmatter}
\dochead{}
\title{title of my paper}
\author[bahonar]{Sajjad Gerami}
\ead{sajjad.gerami@gmail.com}
\address[bahonar]{Faculty of Mathematics and Computer Science, Best University, Somewhere, The One Country}
\begin{abstract}
abstract text....
\end{abstract}
\end{frontmatter}
\section{First section}
\lipsum{}
\definecolor{mygreen}{rgb}{0,0.6,0}
\definecolor{mygray}{rgb}{0.5,0.5,0.5}
\definecolor{mymauve}{rgb}{0.58,0,0.82}
\lstset{ %
backgroundcolor=\color{white}, % choose the background color; you must add \usepackage{color} or \usepackage{xcolor}
basicstyle=\footnotesize, % the size of the fonts that are used for the code
breakatwhitespace=false, % sets if automatic breaks should only happen at whitespace
breaklines=true, % sets automatic line breaking
captionpos=b, % sets the caption-position to bottom
commentstyle=\color{mygreen}, % comment style
deletekeywords={...}, % if you want to delete keywords from the given language
escapeinside={\%*}{*)}, % if you want to add LaTeX within your code
extendedchars=true, % lets you use non-ASCII characters; for 8-bits encodings only, does not work with UTF-8
frame=single, % adds a frame around the code
keepspaces=true, % keeps spaces in text, useful for keeping indentation of code (possibly needs columns=flexible)
keywordstyle=\color{blue}, % keyword style
language=Octave, % the language of the code
morekeywords={*,...}, % if you want to add more keywords to the set
numbers=left, % where to put the line-numbers; possible values are (none, left, right)
numbersep=5pt, % how far the line-numbers are from the code
numberstyle=\tiny\color{mygray}, % the style that is used for the line-numbers
rulecolor=\color{black}, % if not set, the frame-color may be changed on line-breaks within not-black text (e.g. comments (green here))
showspaces=false, % show spaces everywhere adding particular underscores; it overrides 'showstringspaces'
showstringspaces=false, % underline spaces within strings only
showtabs=false, % show tabs within strings adding particular underscores
stepnumber=1, % the step between two line-numbers. If it's 1, each line will be numbered
stringstyle=\color{mymauve}, % string literal style
tabsize=2, % sets default tabsize to 2 spaces
% title=Script 1: A program in Matlab to estimate the total area under sin(x), % show the filename of files included with \lstinputlisting; also try caption instead of title
xleftmargin=3.5cm,
xrightmargin=3.5cm
}
\begin{lstlisting}[title={Script 1: A program in Matlab to estimate the total area under $\sin(x)$}]
a=0;
b=pi/2;
h=max(feval(@func,linspace(a,b,n)));
x=a+(b-a)*rand(n,1);
y=h*rand(n,1);
N=0;
f=sin(x);
for j=1:n
if y(j)<=f(j)
N=N+1;
end
end
ans=N/n*h*(b-a)
\end{lstlisting}
%*****************
\lipsum{}
\end{document}
output:
UPDATE2:
I tested method proposed in following link and not worked:
Center caption in listing
but then I saw this answer and edited to this:
\begin{figure}[thp]
\begin{center}
\begin{lstlisting}[numbers=left]
My Code
Another line
\end{lstlisting}
\end{center}
\caption{my caption or title}
\end{figure}
result:
It's good but the gap between box and caption is too much. I need to reduce it for good result.
UPDATE3:
This link has the best answer to removing gap for just one figure.
\begin{figure}[!ht]
\centering
\includegraphics[width=0.5\textwidth]{image}
\vspace{-1em}
\caption{\textcolor{gray}{\footnotesize \textit{ImageCaption}}}
\vspace{-1.5em}
\end{figure}
Best Answer
Effectively, there is some incopatibility between
captionandlistingswhen you usexleftmarginandxrightmargin...Without changing any commands from one or the other package, one thing that comes to mind is to insert the listing inside a centered minipage.
So, remove the lines
from inside the
\lstsetand insert your listing in your document in the following way:
Thus, the following MWE
yields
Just some remarks:
ecrc.captiondoesn't need to be loaded since it is already loaded by the packagesubcaption.I don't know if you are using
titleinstead ofcaptionfor a specific reason. If the reason is to get rid of the word "Listing" inside the caption you can do the following:a. put the following line in the preamble:
b. replace
with