Chapter name with a bar separation

Question

How can I show my chapter's titles, using book class, to be like this:

I've been using titlesec and anyfontsize package for its spacing and sizing with the following code:

\titleformat{\chapter}[block]
    {\normalfont\fontsize{25}{17}\selectfont\bfseries}{\thechapter}{.5cm}{\fontsize{21}{17}\selectfont}
    \titlespacing*{\chapter}{2cm}{1.4cm}{4cm}

But haven't got any idea on how to make that bar separation.

Addition from Manuel Kuehner (added a MWE)

\documentclass{book}
\usepackage{titlesec}
\titleformat{\chapter}[block]
    {\normalfont\fontsize{25}{17}\selectfont\bfseries}{\thechapter}{.5cm}{\fontsize{21}{17}\selectfont}
    \titlespacing*{\chapter}{2cm}{1.4cm}{4cm}
\begin{document}
\chapter{Test Chapter}
\end{document}

It's book class. Gonna place it in the beggining of the text. — Feripinho, Mar 21 '21 at 22:33
I added a complete code example. Please provide this the next time yourself. — Dr. Manuel Kuehner, Mar 21 '21 at 23:03
Related: https://tex.stackexchange.com/questions/69330, https://tex.stackexchange.com/questions/306889. — Dr. Manuel Kuehner, Mar 21 '21 at 23:04
Thank you. I think I got it. Just changed the second argument of the \titleformat to {\thechapter\hspace{.25cm}\raisebox{1.5pt}{$\bigm|$}} and it looks great. — Feripinho, Mar 21 '21 at 23:38

score 5 · Accepted Answer · answered Mar 22 '21 at 00:14

If you want full control on the style of the separation bar you can insert it as a tikz picture. In the following MWE I have used the dotted and draw=gray options only to show a possibility (you can omit them, if you prefer). You can set the distance between the chapter number and the chapter title changing the value of the \numtitlesep length. The separation bar will be placed in the middle. The height and the position of the bar are set empirically (they too can be automated based on the font used, but I don't think it's worth it for such a case).

MWE

\documentclass{book}
\usepackage{titlesec}
\usepackage{tikz}
\newlength{\numtitlesep}
\setlength{\numtitlesep}{1cm}
\def\chapvrule{%
\tikz[overlay]{%
 \draw[
  draw=gray,
  dotted,
  line width=1.5pt,
  xshift=\dimexpr(0.5\numtitlesep)]
 (0,-7pt) -- (0,24pt);}}
\titleformat{\chapter}[block]
  {\normalfont\fontsize{25}{40}\selectfont\bfseries}
  {\thechapter\chapvrule}
  {\numtitlesep}
  {\fontsize{21}{17}\selectfont}
\titlespacing*{\chapter}{2cm}{1.4cm}{4cm}
\begin{document}
\chapter{Lorem ipsum}
\end{document}

which gives:

Chapter name with a bar separation

1 Answers1