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\documentclass{article}
\title{The \texttt{argumentation} Package}
\author{Lars Bengel\\\small lars.bengel@fernuni-hagen.de}
%\date{}
%%%%%%%%% IMPORTS %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\usepackage{argumentation}
\usepackage{amsmath}
\newtheorem{example}{Example}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{document}
\maketitle
\tableofcontents
\newpage
\section{Example}
\vspace{-0.7cm}
\begin{figure}[ht]
\centering
\begin{af}
\argument{args1}{a}
\argument[right=of args1]{args2}{b}
\argument[right=of args2]{args3}{c}
\argument[right=of args3]{args4}{d}
\argument[right=of args4]{args5}{e}
\argument[below=of args1]{args6}{f}
\argument[inactive,right=of args6]{args7}{g}
\argument[inactive,argin,right=of args7]{args8}{h}
\argument[right=of args8]{args9}{i}
\argument[right=of args9]{args10}{j}
\afname[left of=args1,yshift=-0.8cm,xshift=-0.2cm]{cap}{\textbf{F:}}
\selfattack{args1}
\dualattack[]{args1}{args6}
\dualattack[inactive]{args6}{args7}
\attack[inactive]{args8}{args7}
\attack[inactive]{args7}{args2}
\attack[]{args3}{args2}
\attack[]{args4}{args5}
\attack[]{args5}{args10}
\attack[]{args10}{args9}
\attack[]{args9}{args4}
\support[]{args4}{args3}
\support[]{args9}{args3}
\end{af}
\caption{An exemplary AF created with the \textsf{argumentation} package.}
\label{fig:example}
\end{figure}
\vspace{-0.4cm}
\begin{verbatim}
\usepackage{argumentation}
\begin{figure}[ht]
\centering
\begin{af}
\argument{args1}{a}
\argument[right=of args1]{args2}{b}
\argument[right=of args2]{args3}{c}
\argument[right=of args3]{args4}{d}
\argument[right=of args4]{args5}{e}
\argument[below=of args1]{args6}{f}
\argument[inactive,right=of args6]{args7}{g}
\argument[inactive,argin,right=of args7]{args8}{h}
\argument[right=of args8]{args9}{i}
\argument[right=of args9]{args10}{j}
\afname[left of=args1,yshift=-0.8cm,xshift=-0.2cm]{cap}{\textbf{F:}}
\selfattack{args1}
\dualattack[]{args1}{args6}
\dualattack[inactive]{args6}{args7}
\attack[inactive]{args8}{args7}
\attack[inactive]{args7}{args2}
\attack[]{args3}{args2}
\attack[]{args4}{args5}
\attack[]{args5}{args10}
\attack[]{args10}{args9}
\attack[]{args9}{args4}
\support[]{args4}{args3}
\support[]{args9}{args3}
\end{af}
\caption{An exemplary AF created with the \textsf{argumentation} package.}
\label{fig:example}
\end{figure}
\end{verbatim}
\section{Documentation for Version 1.0 [2023/11/05]}
In the following, we provide an overview over the functionality of the \textsf{argumentation} package.
\subsection{Package Options}
Three options are provided to customize the look of the argumentation framework: \textsf{namestyle}, \textsf{argumentstyle} and \textsf{attackstyle}.
The \textsf{namestyle} option accepts three different values
\begin{align*}
\mathsf{italics} &\quad \text{The argument name is rendered in \emph{italics}.}\\
\mathsf{bold} &\quad \text{The argument name is rendered in \textbf{bold}.}\\
\mathsf{bolditalics} &\quad \text{(default) The argument name is rendered with \textbf{\emph{both}}.}\\
\end{align*}
The \textsf{argumentstyle} option controls the style of the argument nodes and accepts two values
\begin{align*}
\mathsf{standard} &\quad \text{(default) Standard style for the argument nodes.}\\
\mathsf{retro} &\quad \text{Alternative style, node size may vary for large argument names.}
\end{align*}
The \textsf{attackstyle} option controls the style of the attack arrows and accepts two values
\begin{align*}
\mathsf{standard} &\quad \text{(default) Standard style for the attack arrow tips.}\\
\mathsf{retro} &\quad \text{Alternative style, arrow tip is smaller and flatter.}
\end{align*}
\subsection{Environments}
The package provides two environments for creating abstract argumentation frameworks and bipolar argumentation frameworks in \LaTeX-documents.
\subsubsection{\textsf{af}-Environment}
The \textsf{argumentation} package provides the \textsf{af} environment for creating abstract argumentation framework.
The \textsf{af} environment extends the \textsf{tikzpicture} environment, meaning all \textsf{tikzpicture}-parameters can be used inside the \textsf{af} environment as well.
The most relevant parameter is \verb|node distance|, which is set to \verb|1cm| per default.
\subsubsection{\textsf{miniaf}-Environment}
The \textsf{miniaf} environment can be used to create argumentation frameworks using less space.
Especially useful for two-column layout documents.
It provides essentially the same as the \textsf{af} environment, but with \verb|node distance=0.5cm| and for each node \verb|minimum size=0.5cm|, \verb|font=\small|.
\begin{figure}[ht]
\centering
\begin{miniaf}
\argument{args1}{a}
\argument[right=of args1]{args2}{b}
\argument[right=of args2]{args3}{c}
\argument[right=of args3]{args4}{d}
\argument[right=of args4]{args5}{e}
\argument[below=of args1]{args6}{f}
\argument[inactive,right=of args6]{args7}{g}
\argument[inactive,argin,right=of args7]{args8}{h}
\argument[right=of args8]{args9}{i}
\argument[right=of args9]{args10}{j}
\afname[left of=args1,yshift=-0.5cm,xshift=-0.2cm]{cap}{\textbf{F:}}
\selfattack{args1}
\dualattack[]{args1}{args6}
\dualattack[inactive]{args6}{args7}
\attack[inactive]{args8}{args7}
\attack[inactive]{args7}{args2}
\attack[]{args3}{args2}
\support[]{args4}{args3}
\support[]{args9}{args3}
\attack[]{args4}{args5}
\attack[]{args5}{args10}
\attack[]{args10}{args9}
\attack[]{args9}{args4}
\end{miniaf}
\caption{An exemplary Mini-AF created with the \textsf{miniaf} environment.}
\label{fig:example_mini}
\end{figure}
\subsection{Arguments}
Arguments can be created with the following command
\verb|\argument{id}{name}|
\noindent
To create an argument, you must provide a unique identifier \textsf{id} and the \textsf{name} to be displayed in the picture.
The \textsf{id} of an argument is then referred to when creating attacks as well as for the relative positioning of the other arguments.
The \textsf{standard} style of an argument is defined with the following parameters, all of which can be overridden if desired.
\begin{align*}
\textsf{circle} &\quad \text{the shape of the argument.}\\
\textsf{minimum~size=0.75cm} &\quad \text{the minimum size of the circle, to ensure consistent}\\
&\quad \text{argument size.}\\
\textsf{draw=black} &\quad \text{outline and text color of the argument.}\\
\textsf{thick} &\quad \text{the outline of the circle is rendered in \textsf{thick} mode.}\\
\textsf{fill=white} &\quad \text{the background color of the argument.}\\
\textsf{font=large} &\quad \text{the font size of the argument name.}\\
\textsf{text~centered} &\quad \text{positioning of the argument name inside the circle.}\\
\textsf{inner~sep=0} &\quad \text{inner margins of the circle, set to \textsf{0} to optimize space.}
\end{align*}
\subsubsection{Relative Positioning}
This package supports relative placement of the arguments via the \textsf{tikz}-library \textsf{positioning}.
The relative positioning information is provided as an optional parameter via
\verb|\argument[dir=of arg_id]{id}{name}|
\noindent
with \textsf{dir} being one of: \emph{right}, \emph{left}, \emph{below} and \emph{above} and \textsf{arg\_id} being the id of another argument.
Additionally, you can adjust the horizontal/vertical position of an argument via the options \textsf{xshift} and \textsf{yshift}.
You must also specify the distance in one of the following ways
\verb|\argument[xshift=5mm]{id}{name}|
\verb|\argument[xshift=5pt]{id}{name}|
\verb|\argument[xshift=5ex]{id}{name}|
\begin{example}~
\begin{verbatim}
\begin{af}
\argument{arg1}{a}
\argument[right=of arg1]{arg2}{b}
\argument[right=of arg2, yshift=-10pt]{arg3}{c}
\end{af}
\end{verbatim}
\begin{center}
\begin{af}
\argument{arg1}{a}
\argument[right=of arg1]{arg2}{b}
\argument[right=of arg2, yshift=-10pt]{arg3}{c}
\end{af}
\end{center}
\end{example}
\subsubsection{Argument Styles}
Furthermore, you can provide optional parameters to adjust the style of the argument node.
For that you can use all \textsf{tikz}-style options and additionally the following pre-defined style parameters:
\begin{align*}
\mathsf{inactive} &\quad \text{The argument is displayed in grey and with a dotted outline.}\\
\mathsf{argin} &\quad \text{The argument is displayed with green background color.}\\
\mathsf{argout} &\quad \text{The argument is displayed with red background color.}\\
\mathsf{argundec} &\quad \text{The argument is displayed with cyan background color.}
\end{align*}
\begin{example}
\end{example}
\subsection{Attacks}
Attacks between two arguments can be created with the command
\verb|\attack{arg1}{arg2}|
\noindent
where \textsf{arg1} and \textsf{arg2} are the identifiers of two previously defined arguments.
The \textsf{standard} style for attacks is defined with the \textsf{arrows.meta} library as follows
\begin{align*}
\texttt{-{Stealth[scale=1.25]}}
\end{align*}
\subsubsection{Attack Styles}
To customize an attack you can provide additional optional parameters:
\begin{align*}
\mathsf{inactive} &\quad \text{The attack is displayed in grey and with a dotted line.}\\
\mathsf{bend~right} &\quad \text{The attack arrow is bent to the right.}\\
&\quad \text{Can additionally provide the angle, e.\,g., \textsf{bend~right=40}.}\\
\mathsf{bend~left} &\quad \text{The attack arrow is bent to the left. Can also provide an angle.}\\
\end{align*}
Furthermore, all \textsf{tikz} style parameters can be used here as well.
\begin{example}~
\begin{verbatim}
\begin{af}
\argument{arg1}{a}
\argument[right=of arg1]{arg2}{b}
\argument[right=of arg2]{arg3}{c}
\argument[right=of arg3]{arg4}{d}
\attack{arg1}{arg2}
\attack[bend right]{arg2}{arg3}
\attack[bend left=10,inactive]{arg3}{arg4}
\end{af}
\end{verbatim}
\begin{center}
\begin{af}
\argument{arg1}{a}
\argument[right=of arg1]{arg2}{b}
\argument[right=of arg2]{arg3}{c}
\argument[right=of arg3]{arg4}{d}
\attack{arg1}{arg2}
\attack[bend right]{arg2}{arg3}
\attack[bend left=10,inactive]{arg3}{arg4}
\end{af}
\end{center}
\end{example}
Additionally, you can create a symmetric attack between two arguments with
\verb|\dualattack{arg1}{arg2}|
\noindent
and a self-attack for an argument with
\verb|\selfattack{arg1}|
\noindent
For both commands, you can use the same optional parameters as for the \verb|\attack| command.
\begin{example}~
\begin{verbatim}
\begin{af}
\argument{arg1}{a}
\argument[right=of arg1]{arg2}{b}
\selfattack{arg1}
\dualattack{arg1}{arg2}
\end{af}
\end{verbatim}
\begin{center}
\begin{af}
\argument{arg1}{a}
\argument[right=of arg1]{arg2}{b}
\selfattack{arg2}
\dualattack{arg1}{arg2}
\end{af}
\end{center}
\end{example}
\subsection{Supports}
You can create a support relation between two arguments with the command
\verb|\support{arg1}{arg2}|
\noindent
where \verb|arg1| and \verb|arg2| are the identifiers of two previously defined arguments.
The support arrow use the same tip as the attack arrows, but have a perpendicular mark to distinguish them from attacks.
Supports can be customized in the same way as attacks.
\begin{example}~
\begin{verbatim}
\begin{af}
\argument{arg1}{a}
\argument[right=of arg1]{arg2}{b}
\argument[right=of arg2]{arg3}{c}
\support{arg1}{arg2}
\support[bend right]{arg2}{arg3}
\end{af}
\end{verbatim}
\begin{center}
\begin{af}
\argument{arg1}{a}
\argument[right=of arg1]{arg2}{b}
\argument[right=of arg2]{arg3}{c}
\support{arg1}{arg2}
\support[bend right]{arg2}{arg3}
\end{af}
\end{center}
\end{example}
\subsection{Further Commands}
If you want to display an identifier for your argumentation framework in the picture, you can use the command
\verb|\afname{id}{name}|
\noindent
where \verb|id| is an identifier for the created node and \verb|name| is the text displayed in the picture.
Additionally, positioning information can be provided via the optional parameters.
\begin{example}~
\begin{verbatim}
\begin{af}
\argument{arg1}{a}
\argument[right=of arg1]{arg2}{b}
\afname[left=of arg1]{caption}{$F:$}
\attack{arg1}{arg2}
\end{af}
\end{verbatim}
\begin{center}
\begin{af}
\argument{arg1}{a}
\argument[right=of arg1]{arg2}{b}
\argument[right=of arg2]{arg3}{c}
\afname[left=of arg1]{caption}{$F:$}
\support{arg1}{arg2}
\end{af}
\end{center}
\end{example}
\end{document}
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