Renumbering chapter after part, correct ref, ToC and chap header aspect

The title may seems unclear.

I have a document with several parts, including several chapters. I want the numbering of the chapter to be reset after each new part (easy) BUT : - I want the header of my chapter to be just the number of the chapter (not Part.Chapter) - I want the ToC to show the same thing (not the part number for each chapter and section) - I want the ref to a chapter or a section to be Part.Chap(.sec etc).

Here is a MWE with the package I use in my thesis. It looks almost fine. Just the reference to chapter "I.1" does not work.

\documentclass[twoside,12pt,openright,a4paper,usenames,dvipsnames]{book}
\usepackage{chngcntr}
\counterwithin{chapter}{part}

\usepackage{titlesec}
\usepackage[titles]{tocloft}
\titleformat{name=\chapter}[display]
{\bfseries\LARGE}
{\filleft\MakeUppercase{\chaptertitlename} \Huge\thechapter}
{0ex}
{%\titlerule
\vspace{2ex}%
\filleft}
[\vspace{4ex}%
\titlerule]

\titleformat{name=\chapter,numberless}
{\bfseries\LARGE}
{}
{0ex}
{%\titlerule
\filleft\MakeUppercase}
[\vspace{4ex}%
\titlerule]
\titlespacing*{\chapter}{0pt}{-25pt}{40pt}

\titleformat{\part}[frame]
{\bfseries\Huge}
{\filright\large\enspace{\partname}\enspace}
{40pt}
{\Large\filcenter\MakeUppercase}
\titleclass{\part}{top}

\begin{document}

\tableofcontents

\part{Part 1}

\chapter{Chap 1}

\label{chap:chapI1}

\chapter{Chap 2}

\part{Part 2}

\chapter{Chap 1}

As mentioned in chap.~\ref{chap:chapI1},...

\chapter{Chap 2}

\end{document}


Do you know how I can fix the refs ? I browsed similar question, but none answer in the case of titlesec use.

• this was answered (here), i'll search (with you) Apr 25, 2015 at 7:39
• Sorry but I don't understand the answer (or you forgot the hyperlink perhaps?) Apr 25, 2015 at 7:52
• i mean this question was answerd in this site, i will search for the link and in this time you can do the same. now i post an answer with the link Apr 25, 2015 at 8:00

here 2 solutions:

with

\usepackage{chngcntr}
\counterwithin{chapter}{part}


use

\makeatletter
\renewcommand{\thechapter}{\@arabic\c@chapter}
\renewcommand{\p@chapter}{\thepart.}
\makeatother


without it use

\makeatletter
\renewcommand{\p@chapter}{\thepart.}
\makeatother


Edit for appendix, replace

\renewcommand{\p@chapter}{\thepart.}


by

\renewcommand{\p@chapter}{%
\ifx\@chapapp\chaptername\thepart.\fi}


the answer i was refering is here

• I forgot one detail... I would need my figures and tables to be numbered with the part number as well (if not, I have several figures numbered 1.1., 1.2, etc). I am using the tocloft package by the way. Do you know a way? Apr 26, 2015 at 8:04
• Just a tip : if you have appendixes in an unnumbered part, add the lines \makeatletter \renewcommand{\p@chapter}{} \makeatother before the first appendix. Like that, your appendixes will not be numbered with the last part number. Apr 26, 2015 at 8:22
• @Basil1402 try this \renewcommand\thefigure{\thepart.\thechapter.\arabic{figure}} what about appendix can you explan Apr 26, 2015 at 8:30
• Thanks. For the appendixes, here is what I mean. I used the preamble above and, after my final main part, I wrote several appendixes (A, B, C...) included in an unumberbed part (\part*{Appendixes}). With the template above, if I make a reference to the appendixes in the main text, it will be noted, e.g., "see App. III.B" where III is the number of my last main part. Not very clever. So, just by adding \makeatletter \renewcommand{\p@chapter}{} \makeatother before \part*{Appendixes}, it makes the cross-referencing to appendixes right, eg. "see App. B". Apr 26, 2015 at 8:45
• @Basil1402 I add this to my answer. Apr 26, 2015 at 8:58