# Change memoir sidecaption margin for correct oneside display

I use a memoir class to write my thesis, and i don't know why i write all my text using the twoside option.

Now i need oneside option to print - yes, this is a silly situation :( - for impression, and all my margin settings are broken.

I want the same assymmetric page for all recto printed page, with sidecaption to the right for each page.

About \sidecapmargin Memoir class say that :

the \sidecapmargin command controls the margin where the sidecaption will be placed. The possible values for margin are one of: left , right , inner , or outer . If left or right is specified the caption will go into the left or right margin. If inner or outer is specified then in a two sided document the caption will be on different sides of the typeblock according to whether it is a recto or verso page; in a one sided document the caption margin is fixed. The left margin is the default.

Using a class document with oneside, i want the sidecaption go to the right (and default is left as the manual of memoir say).

The \overridescapmargin{ right } work for only ONE sidecaption at a time. How can i automatize this to all sidecaption, because \sidecapmargin{} command is desactivated in oneside option.

% !TEX encoding =  UTF-8 Unicode
% -*- program: xelatex -*-
\documentclass[a4paper, 11pt,oneside, openright]{memoir}
\usepackage{polyglossia}
\setdefaultlanguage{french}
\usepackage{graphicx}
\usepackage[protrusion=true,final]{microtype}
%\usepackage[hang]{footmisc}
\usepackage{mwe} % just for dummy images
\usepackage{lipsum}

\checkandfixthelayout %or perhaps \checkandfixthelayout[lines]
\setlength{\evensidemargin}{\oddsidemargin}% after \checkandfix......

\raggedbottom
\enlargethispage{\baselineskip}

% SIDE CAPTION
\newsubfloat{figure}{}
\newsubfloat{table}{}

\loosesubcaptions

\setsidecappos{t}

\strictpagecheck

\setsecnumdepth{paragraph}

\pagestyle{ruled}

\begin{document}

\frontmatter

\cleardoublepage

\chapterstyle{bringhurst}

\tableofcontents

\mainmatter
\chapter{my first chapter}

\lipsum

\begin{figure}[htbp]
\overridescapmargin{right}
\begin{sidecaption}[fortoc]{this is a very long comment on the margin this is a very long comment on the margin this is a very long comment on the margin
this is a very long comment on the margin this is a very long comment on the margin this is a very long comment on the margin}[fig:S_VV1]
\centering
\includegraphics[]{example-image-c}
\end{sidecaption}
\end{figure}

\lipsum

\begin{figure}[htbp]
\overridescapmargin{right}
\begin{sidecaption}[fortoc]{this is a very long comment on the margin this is a very long comment on the margin this is a very long comment on the margin this is a very long comment on the margin this is a very long comment on the margin  this is a very long comment on the margin}[fig:S_VV2]
\centering
\includegraphics[width=.9\linewidth]{example-image-b}
\end{sidecaption}
\end{figure}

\lipsum

\begin{figure}[htbp]
\overridescapmargin{right}
\begin{sidecaption}[fortoc]{this is a very long comment on the margin this is a very long comment on the margin this is a very long comment on the margin
this is a very long comment on the margin  this is a very long comment on the margin  this is a very long comment on the margin}[fig:S_VV3]
\centering
\includegraphics[]{example-image-b}
\end{sidecaption}
\end{figure}

\chapter{my second chapter}
\lipsum

\begin{figure}[htbp]
\begin{sidecaption}[fortoc]{this is a very long comment on the margin this is a very long comment on the margin  this is a very long comment on the margin this is a very long comment on the margin this is a very long comment on the margin}[fig:S_VV4]
\centering
\includegraphics[]{example-image-a}
\end{sidecaption}
\end{figure}

\lipsum

\listoftables

\listoffigures

\appendix
\appendixpage

\chapter{my first appendix}
\lipsum

\chapter{my second appendix}
\lipsum

\end{document}


What i want in the MWE :

• Why do you need the oneside option for print? This makes all pages have a the oddpage layout. Oneside has nothing to do with whether or not you print single or double sided. Aug 7 '15 at 20:20
• Because of the binding ? And because my margin are not the same for each page on recto printing ? I want symetric layout but not the oddpage :) Aug 7 '15 at 20:28
• I still do not understand what it is you want. Aug 7 '15 at 20:38
• updated with image, hope that help Aug 7 '15 at 20:45
• "I want less space on the inner margin, more on the outer margin, with symmetric page like any thesis printed only in recto." -- what total margins do you want on each side (including binding), and how wide should the side captions be? Not sure how to reconcile less/more space on each margin with symmetric pages. Aug 8 '15 at 16:56

There is a logical error in the oneside placement part.

This works better

\makeatletter
\renewcommand*{\m@mscapcheckregside}{%
\if@twoside
\checkoddpage
\ifnum\m@mscapmarg<\@ne%      % left
\scapmarglefttrue
\else
\ifnum\m@mscapmarg=\@ne%    % right
\scapmargleftfalse
\else
\ifnum\m@mscapmarg=\tw@%  % outer
\scapmarglefttrue
\ifoddpage
\scapmargleftfalse
\fi
\else%                  % inner
\scapmargleftfalse
\ifoddpage
\scapmarglefttrue
\fi
\fi
\fi
\fi
\else%     oneside
% left and inner should be the same
% right and outer should be the same
\ifcase\m@mscapmarg\relax% 0
\scapmarglefttrue
\or% 1
\scapmargleftfalse
\or% 2
\scapmargleftfalse
\or% 3
\scapmarglefttrue
\fi
\fi}

\makeatother


In oneside we set left=inner and right=outer. The version in current memoir sets left=right and inner=outer.

It will be fixed in the next release.

• Great news :) Is there a way to give more space to the right outer margin for sidecaption ? (for example like in two side ) Aug 10 '15 at 7:48
• Not understood. You can just set \sidecapwidth Aug 10 '15 at 8:21
• Using \setlength\sidecapwidth{<length of your choice>}  i suppose, but how can i get the outer margin correct <length> ? Like the image Aug 10 '15 at 9:10
• You cannot. The side caption is placed in the margin regardless of the size of the image. Other packages may provide similar functionality and does this differently. A better solution is on my TODO list, but is not going to be added any time soon. Aug 10 '15 at 10:14
• Using your hack plus \checkandfixthelayout and \setlength{\evensidemargin}{\oddsidemargin} , and by replacing oneside by openany i have the good layout. Don't know why. Aug 10 '15 at 10:34