captionshorizontal alignment
I know that is has been asked several times. But I think my problem is a bit different. I want to make my figure captions left aligned and justified. I don't want all of them to be like this because I have subfigures for them I want centered caption.
\captionsetup{justification=raggedright} is working but the text is not justified and \captionsetup{justification=justified} gives me a centered caption! I am using TeXstudio.
You could use \captionsetup[<name>]{...} ... \captionsetup{options=<name>} to define and execute options for custom commands or environments, e.g.:
\documentclass{article}
\usepackage[demo]{graphicx}
\usepackage{caption}
\addtolength{\evensidemargin}{1.5cm}
\addtolength{\textwidth}{-1.5cm}
\addtolength{\marginparwidth}{20pt}
\addtolength{\marginparsep}{10pt}
\captionsetup[marginfigure]{
justification=raggedright,
font=small}
\newcommand\marginfigure[1]{%
\marginpar{%
\captionsetup{type=figure,options=marginfigure}%
#1}}
\begin{document}
text text text ...
\begin{figure}
\centering
\includegraphics{figure1}
\caption{figure 1 text, which I don't want to have a raggedright justification, since it looks quite good without it due to the many words that I can fit into one line in this type of caption.}
\end{figure}
some
more
text
about
something
\marginfigure{\includegraphics[width=\marginparwidth]{figure2}
\caption{Here for figure 2, the caption will look odd when few words are stretched across the marginparwidth}}
\end{document}
You can use package threeparttable to restrict the caption width to the width of the image:
\documentclass{beamer}
\usepackage{threeparttable}
\usepackage[labelformat=empty,font=scriptsize,skip=0pt,
justification=raggedright,singlelinecheck=false]{caption}
\begin{document}
\begin{frame}
\begin{figure}
%\centering% not needed, because default
\begin{measuredfigure}
\includegraphics[width=.5\linewidth]{example-image}
\caption{my caption here}
\end{measuredfigure}
\end{figure}
\end{frame}
\end{document}
Usually you do not need explicit center or \centering, because beamer centers the figure by default (see the result in the image above). Instead, if you want left aligned or right aligned figures you have to add \raggedright or \raggedleft just after \begin{figure}. Nevertheless, you can activate the commented \centering.
Best Answer
If I understand well what you want,
should do it.
However, note the caption will begin at the text left margin, not at the left side of the figure, which will be ugly for small figures.
Two packages allow to have a caption width equal to the figure width:
measuredfigure, an environment defined by thethreeparttablepackage.floatrowdefines a\ffigbox[\FBwidth]{\caption{...}\label{...}}{figure commands}to be inserted in afigureenvironment. If necessary, you can have a caption width different from the figure width, changing the optional argument to, say,[0.25\textwidth].