[Tex/LaTex] Caption in Tikz without “Figure 1”

captions

If I use this code,

\documentclass{article}
\usepackage{tikz}
\usepackage{multicol,float}
\usepackage{etoolbox}% provides \preto

\usetikzlibrary{shapes,backgrounds}

\tikzset{
    every node/.style={midway},
    every path/.style={fill=yellow},
    mid/.style={midway, inner sep=2pt, outer sep=0,minimum size=1mm, fill=yellow,node on layer=foreground},
}

\begin{document}

\begin{figure}[H]
\begin{tikzpicture}[scale = 4]
\draw (0.445041,0.801937) rectangle (0,1) node[mid] {$1$};
\draw (0.692021,0.356896) rectangle (1,1) node[mid] {$2$};
\draw (0.692021,0.356895) rectangle (0,0) node[mid] {$3$};
\draw (0.137063,0.158832) rectangle (0,1) node[mid] {$4$};
\draw (0.384043,0.713791) rectangle (1,0) node[mid] {$5$};
\draw (0.829084,0.515727) rectangle (0,1) node[mid] {$6$};
\draw (0.521105,0.872622) rectangle (0,0) node[mid] {$7$};
\end{tikzpicture}
\centering
\caption{M1}
\end{figure}

\end{document}

the result as for the caption is "Figure 1: M1". Is it possible to change it
to just "M1"?

Best Answer

Three options; the first two, loading the caption package, and the third one with no packages:

Use \caption*:

\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{backgrounds}
\usepackage{multicol,float}
\usepackage{etoolbox}% provides \preto
\usepackage{caption}

\usetikzlibrary{shapes,backgrounds}

\tikzset{
    every node/.style={midway},
    every path/.style={fill=yellow},
    mid/.style={midway, inner sep=2pt, outer sep=0,minimum size=1mm, fill=yellow},
}

\begin{document}

\begin{figure}[H]
\centering
\begin{tikzpicture}[scale = 4]
\draw (0.445041,0.801937) rectangle (0,1) node[mid] {$1$};
\draw (0.692021,0.356896) rectangle (1,1) node[mid] {$2$};
\draw (0.692021,0.356895) rectangle (0,0) node[mid] {$3$};
\draw (0.137063,0.158832) rectangle (0,1) node[mid] {$4$};
\draw (0.384043,0.713791) rectangle (1,0) node[mid] {$5$};
\draw (0.829084,0.515727) rectangle (0,1) node[mid] {$6$};
\draw (0.521105,0.872622) rectangle (0,0) node[mid] {$7$};
\end{tikzpicture}
\caption*{M1}
\end{figure}

\end{document}

Declare the labelformat as empty using a local \captionsetup:

\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{backgrounds}
\usepackage{multicol,float}
\usepackage{etoolbox}% provides \preto
\usepackage{caption}

\usetikzlibrary{shapes,backgrounds}

\tikzset{
    every node/.style={midway},
    every path/.style={fill=yellow},
    mid/.style={midway, inner sep=2pt, outer sep=0,minimum size=1mm, fill=yellow},
}

\begin{document}

\begin{figure}[H]
\captionsetup{labelformat=empty}
\centering
\begin{tikzpicture}[scale = 4]
\draw (0.445041,0.801937) rectangle (0,1) node[mid] {$1$};
\draw (0.692021,0.356896) rectangle (1,1) node[mid] {$2$};
\draw (0.692021,0.356895) rectangle (0,0) node[mid] {$3$};
\draw (0.137063,0.158832) rectangle (0,1) node[mid] {$4$};
\draw (0.384043,0.713791) rectangle (1,0) node[mid] {$5$};
\draw (0.829084,0.515727) rectangle (0,1) node[mid] {$6$};
\draw (0.521105,0.872622) rectangle (0,0) node[mid] {$7$};
\end{tikzpicture}
\caption{M1}
\end{figure}

\end{document}

Don't use \caption at all; simply place the text:

\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{backgrounds}
\usepackage{multicol,float}
\usepackage{etoolbox}% provides \preto

\usetikzlibrary{shapes,backgrounds}

\tikzset{
    every node/.style={midway},
    every path/.style={fill=yellow},
    mid/.style={midway, inner sep=2pt, outer sep=0,minimum size=1mm, fill=yellow},
}

\begin{document}

\begin{figure}[H]
\centering
\begin{tikzpicture}[scale = 4]
\draw (0.445041,0.801937) rectangle (0,1) node[mid] {$1$};
\draw (0.692021,0.356896) rectangle (1,1) node[mid] {$2$};
\draw (0.692021,0.356895) rectangle (0,0) node[mid] {$3$};
\draw (0.137063,0.158832) rectangle (0,1) node[mid] {$4$};
\draw (0.384043,0.713791) rectangle (1,0) node[mid] {$5$};
\draw (0.829084,0.515727) rectangle (0,1) node[mid] {$6$};
\draw (0.521105,0.872622) rectangle (0,0) node[mid] {$7$};
\end{tikzpicture}\par\medskip
M1
\end{figure}

\end{document}

In this last case, if you don't want flotation, you could also simply use a minipage with centered content:

\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{backgrounds}
\usepackage{multicol,float}
\usepackage{etoolbox}% provides \preto
\usepackage{caption}

\usetikzlibrary{shapes,backgrounds}

\tikzset{
    every node/.style={midway},
    every path/.style={fill=yellow},
    mid/.style={midway, inner sep=2pt, outer sep=0,minimum size=1mm, fill=yellow},
}

\begin{document}

\noindent\begin{minipage}{\linewidth}
\centering
\begin{tikzpicture}[scale = 4]
\draw (0.445041,0.801937) rectangle (0,1) node[mid] {$1$};
\draw (0.692021,0.356896) rectangle (1,1) node[mid] {$2$};
\draw (0.692021,0.356895) rectangle (0,0) node[mid] {$3$};
\draw (0.137063,0.158832) rectangle (0,1) node[mid] {$4$};
\draw (0.384043,0.713791) rectangle (1,0) node[mid] {$5$};
\draw (0.829084,0.515727) rectangle (0,1) node[mid] {$6$};
\draw (0.521105,0.872622) rectangle (0,0) node[mid] {$7$};
\end{tikzpicture}\par\medskip
M1
\end{minipage}

\end{document}

Related Solutions

[Tex/LaTex] Remove colon in the caption of a figure without using caption package

A preliminary remark: If a journal you're submitting an article to requires you to use the elsarticle document class, it may be a poor idea to modify the caption style defined by the class. Your journal's style guidelines probably also state something to the effect that every float should have a (nonempty) caption, in which case some kind of separator (such as a colon) between the float's number and caption is generally needed.

Here's the definition of the \@makecaption command contained in the file elsarticle.cls

\long\def\@makecaption#1#2{%
  \vskip\abovecaptionskip\footnotesize
  \sbox\@tempboxa{#1: #2}%
  \ifdim \wd\@tempboxa >\hsize
    #1: #2\par
  \else
    \global \@minipagefalse
    \hb@xt@\hsize{\hfil\box\@tempboxa\hfil}%
  \fi
  \vskip\belowcaptionskip}

The two arguments of the \@makecaption macro are [Float] <num> and the caption's text, respectively. [Float] can be "Figure", "Table", or the name of any other floating environment recognized by LaTeX.

There are two ways to suppress the insertion of a colon following the float's name and number.

Method 1 : Remove the colon globally because the mandatory arguments (the stuff inside curly braces) of all \caption commands will always be empty. To achieve this, you could load the etoolbox package and issue the following commands:

\makeatletter
\patchcmd{\@makecaption}{#1: #2}{#1}{}{}
\makeatother

Method 2: Remove the colon whenever (and only if) the mandatory argument of the \caption command is empty. In this case, you may want to employ the following redefinition of the \@makecaption command:

\makeatletter
\long\def\@makecaption#1#2{%       
\vskip\abovecaptionskip\footnotesize
\sbox\@tempboxa{#2}         % place contents of #2 into a scratch TeX box
\ifdim \wd\@tempboxa = 0pt  % test if scratch box has zero width
   \centering #1 \par       % if yes, typeset only #1 (the float's name and number)
\else                       % if no, proceed with default definition
   \sbox\@tempboxa{#1: #2}%
   \ifdim \wd\@tempboxa >\hsize
     #1: #2\par
   \else
     \global \@minipagefalse
     \hb@xt@\hsize{\hfil\box\@tempboxa\hfil}%
   \fi
\fi
\vskip\belowcaptionskip}
\makeatother

[Tex/LaTex] Caption without text below “Figure”

You can use the caption package with the option format=hang to do this

enter image description here

\documentclass{article}
\usepackage[format=hang]{caption}

\begin{document}

\begin{figure}
    \centering
    \rule{20pt}{10pt} %just for demonstration
    \caption{ Here's a long caption, it goes across more than
    one line| the style you describe is called `hanging'.}
\end{figure}

\end{document}

Putting an enumerate environment in a caption can be done- see

Using the itemize environment inside a caption

for details.

Best Answer

Related Solutions

[Tex/LaTex] Remove colon in the caption of a figure without using caption package

[Tex/LaTex] Caption without text below “Figure”

Related Question