I'm currently writing a document using custom chapter numbering and it has stuffed up the contents hyperlinks.
I have it so that the first few chapters are numbered using roman numerals starting at I and then the numbering restarts for another set of chapters, this time using arabic numerals.
But, when I click on the link for the first arabic numbered chapter it takes me to the first roman numbered chapter, the same for all the other numbers (i.e. 2-->II). The page number links also have the same issue.
If I manually add a chapter link to the toc then it doesn't add the number before the title in the margin, something I'd like to keep.
An example of essentially what my code is:
\documentclass[a4paper, english, 12pt]{book}
\setlength{\parindent}{0em}
\usepackage{fancyhdr}
\usepackage{fix-cm}
\usepackage[justification=centering]{caption}
\usepackage{babel}
\usepackage{subcaption}
\usepackage{placeins}
\usepackage{amsmath}
\numberwithin{equation}{chapter}
\setlength{\jot}{2em}
\usepackage{nccmath}
\usepackage{amssymb}
\usepackage{cancel}
\usepackage{siunitx}
\usepackage{esint}
\usepackage{accents}
\usepackage{pgfplots}
\usepackage{tikzscale}
\usepackage{tikz-3dplot}
\usetikzlibrary{calc,patterns,angles,quotes}
\usepackage{pgf}
\usepackage{calc}
\usepackage{lastpage}
\usepackage{graphicx}
\usepackage{bigints}
\usepackage{array}
\usepackage[none]{hyphenat}
\usepackage[a4paper, portrait, right=20mm, left=20mm, top=25mm, bottom=20mm]{geometry}
\usepackage{url}
\usepackage{adjustbox}
\usepackage{subfiles}
%See https://en.wikibooks.org/wiki/LaTeX/Modular_Documents
\usepackage[hidelinks, linktoc=all]{hyperref}
\hypersetup{
colorlinks=true,
linkcolor=black,
filecolor=magenta,
urlcolor=blue,
pdfpagemode=FullScreen,
}
\usepackage{xpatch}
\newlength{\beforechapskip}
\newlength{\chaptertopskip}
\newlength{\chapterbottomskip}
\setlength{\beforechapskip}{0mm}
\setlength{\chaptertopskip}{0mm}
\setlength{\chapterbottomskip}{10mm}
\renewcommand{\chaptermark}[1]{\markboth{\Large #1}{}}
\renewcommand{\sectionmark}[1]{\markright{#1}}
\begin{document}
\frontmatter
\phantomsection
\hypertarget{ToC}{} % Make an anchor to the toc
\tableofcontents
\thispagestyle{empty}
\newpage
\mainmatter
%Defines numbering for pre-modules as roman
\renewcommand{\thechapter}{\Roman{chapter}}
\makeatletter
\def\@makechapterhead#1{%
\vspace*{\chaptertopskip}%
{\parindent \z@ \raggedright \normalfont
\ifnum \c@secnumdepth >\m@ne
\if@mainmatter
\huge\bfseries Pre-Module\space \thechapter:\
% \par\nobreak
% \vskip 20\p@
\fi
\fi
\interlinepenalty\@M
\Huge \bfseries #1\par\nobreak
\vskip \chapterbottomskip
}}
\makeatother
% See https://tex.stackexchange.com/questions/309920/how-to-move-the-chapter-title-upwards-on-page
%-------------------------------------------------------------------------------------------------------------
%Defines numbering for pre-modules as roman
\chapter{Example I}
\chapter{Example II}
\renewcommand{\thechapter}{\arabic{chapter}}
%Defines numbering for modules as arabic numbering (normal)
\makeatletter
\def\@makechapterhead#1{%
\vspace*{\chaptertopskip}%
{\parindent \z@ \raggedright \normalfont
\ifnum \c@secnumdepth >\m@ne
\if@mainmatter
\huge\bfseries Module\space \thechapter:\
% \par\nobreak
% \vskip 20\p@
\fi
\fi
\interlinepenalty\@M
\Huge \bfseries #1\par\nobreak
\vskip \chapterbottomskip
}}
\makeatother
% See https://tex.stackexchange.com/questions/309920/how-to-move-the-chapter-title-upwards-on-page
%The guy from the internet basically had this word for word, though some changes have been made to make it say module and what not.
\setcounter{chapter}{0}%makes the module numbering start at x+1, where x is the number here
%-----------------------------------------------------------------------------------------------------------------------------------------------
%Defines numbering for modules as arabic
\chapter{Example 1}
\chapter{Example 2}
\end{document}
