chngcntrcountersparts
I'm a rookie with LaTeX, I'm using LyX, but I think this is a LaTeX problem.
Im using this LaTeX preamble for reset counter after parts
\usepackage{chngcntr}
\counterwithin*{section}{part}
But it only works with \part and no with \part*… I need to have no-numbered parts. What can I do? I don't find anything on the net and my attempts don't work (counterwith, part*…).
It's enough to make \beamer@tocsectionnumber=0 and to set the section counter to zero each time a new part begins:
\documentclass{beamer}
\usetheme[]{Frankfurt}
\setbeamerfont{block title}{size={}}
\setbeamercolor{titlelike}{parent=structure,bg=white}
\setbeamertemplate{navigation symbols}{}
\AtBeginSection[]{%
\begin{frame}\frametitle{Agenda}\tableofcontents[currentsection,hideallsubsections]\end{frame}}
\AtBeginDocument{\renewcommand*{\partname}{Theme}}
\makeatletter
\AtBeginPart{%
\beamer@tocsectionnumber=0\relax
\setcounter{section}{0}
\frame{\partpage}%
}
\makeatother
\begin{document}
\part{1st}
\section{Part One - Section~\thesection}
\begin{frame}
First
\end{frame}
\part{2nd}
\section{Part Two - Section~\thesection}
\begin{frame}
First
\end{frame}
\end{document}
Images of the relevant frames showing the desired behaviour for the section counter and for the numbering in the navigation in the ToCs:
You were near: the counter is called framenumber. There's an easier way to branch for numeric cases.
\documentclass{beamer}
\usepackage{graphicx,color}
\usepackage[T1]{fontenc}
\usepackage[latin9]{inputenc}
\usepackage{marvosym}
\newcommand{\myitem}[1]{\item[{\textcolor{#1}\Laserbeam}]}
\newcounter{myc}[framenumber]
\newcommand\newitem{%
\stepcounter{myc}%
\ifcase\value{myc}%
% no value for 0
\or
\myitem{red}%
\or
\myitem{green}%
\or
\myitem{blue}%
\setcounter{myc}{0}%
\fi
}
\begin{document}
\begin{frame}
\begin{itemize}
\newitem An item
\newitem Another item
\newitem Yet another item
\newitem These items...
\newitem ...are rather boring
\end{itemize}
\end{frame}
\begin{frame}
\begin{itemize}
\newitem An item on a second slide
\newitem Another item
\newitem Yet another item
\newitem These items...
\newitem ...are rather boring
\end{itemize}
\end{frame}
\end{document}
An easier way for extending the number of colors is using xparse; you just call \assigncolors{red,green,blue} or with any other list. You can issue this command any times you want during the document, but it's better to do it outside frames, to avoid multiple evaluations.
\documentclass{beamer}
\usepackage{graphicx,color}
\usepackage[T1]{fontenc}
\usepackage[latin9]{inputenc}
\usepackage{marvosym}
\usepackage{xparse}
\newcounter{myc}[framenumber]
\ExplSyntaxOn
\NewDocumentCommand{\newitem}{}
{
\chris_newitem:
}
\NewDocumentCommand{\assigncolors}{m}
{
\chris_assign_colors:n { #1 }
}
\seq_new:N \g_chris_colors_seq
\int_new:N \l_chris_color_int
\cs_new_protected:Npn \chris_assign_colors:n #1
{
\seq_gset_from_clist:Nn \g_chris_colors_seq { #1 }
}
\cs_new_protected:Npn \chris_newitem:
{
\stepcounter{myc}
\int_set:Nn \l_chris_color_int
{
\int_mod:nn { \value{myc} } { \seq_count:N \g_chris_colors_seq }
}
\int_compare:nT {\l_chris_color_int = 0 }
{
\int_set:Nn \l_chris_color_int { \seq_count:N \g_chris_colors_seq }
}
\chris_do_item:n
{
\seq_item:Nn \g_chris_colors_seq { \l_chris_color_int }
}
}
\cs_new:Npn \chris_do_item:n #1
{
\item[ \textcolor { #1 }{ \Laserbeam } ]
}
\ExplSyntaxOff
\assigncolors{red,green,blue}
\begin{document}
\begin{frame}
\begin{itemize}
\newitem An item
\newitem Another item
\newitem Yet another item
\newitem These items...
\newitem ...are rather boring
\end{itemize}
\end{frame}
\begin{frame}
\begin{itemize}
\newitem An item on a second slide
\newitem Another item
\newitem Yet another item
\newitem These items...
\newitem ...are rather boring
\end{itemize}
\end{frame}
\end{document}
Best Answer
This works for
article.cls\partssince there are no\chapterswhich must be reset too. It's regardless whether\partor\part*is used, the\setcounter{section}{0}just before\partdoes no harm and is done automatically here.