From e1a7798f45cd37c0aa0bfaaef5f0acb4e48bc867 Mon Sep 17 00:00:00 2001
From: Norbert Preining <norbert@preining.info>
Date: Fri, 22 Jan 2021 03:00:46 +0000
Subject: CTAN sync 202101220300

---
 .../NamedGraphs/doc/latex/NamedGraphs-Doyle.tex    | 85 ++++++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100644 macros/latex/contrib/tkz/tkz-berge/NamedGraphs/doc/latex/NamedGraphs-Doyle.tex

(limited to 'macros/latex/contrib/tkz/tkz-berge/NamedGraphs/doc/latex/NamedGraphs-Doyle.tex')

diff --git a/macros/latex/contrib/tkz/tkz-berge/NamedGraphs/doc/latex/NamedGraphs-Doyle.tex b/macros/latex/contrib/tkz/tkz-berge/NamedGraphs/doc/latex/NamedGraphs-Doyle.tex
new file mode 100644
index 0000000000..4f6a55c1fc
--- /dev/null
+++ b/macros/latex/contrib/tkz/tkz-berge/NamedGraphs/doc/latex/NamedGraphs-Doyle.tex
@@ -0,0 +1,85 @@
+\newpage\section{Doyle}\label{doyle}
+%<––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––>
+%<–––––––––––––––––––––––––––––    Doyle  ––––––––––––––––––––––––––––––––>
+%<––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––>
+\begin{NewMacroBox}{grDoyle}{\oarg{options}}
+
+\medskip
+From MathWord : \url{http://mathworld.wolfram.com/DoyleGraph.html}  
+
+\emph{The Doyle graph, sometimes also known as the Holt graph (Marušič et al. 2005), is the symmetric quartic graph on 27 nodes illustrated. It is a Symmetric Graph. Three embeddings are illustrated below.}
+\href{http://mathworld.wolfram.com/topics/GraphTheory.html}%
+           {\textcolor{blue}{MathWorld}} by \href{http://en.wikipedia.org/wiki/Eric_W._Weisstein}%
+           {\textcolor{blue}{E.Weisstein}}
+
+\medskip
+The Doyle graph is implemented in \tkzname{tkz-berge} as \tkzcname{grDoyle} with three forms.
+\end{NewMacroBox}
+
+\subsection{\tkzname{The Doyle graph : form 1}}
+\begin{center}
+\begin{tkzexample}[vbox]
+\begin{tikzpicture}[scale=.6] 
+  \GraphInit[vstyle=Shade]
+  \SetGraphShadeColor{red}{Maroon}{fondpaille}  
+  \SetVertexNoLabel  
+  \grDoyle[RA=7,RB=5,RC=3]
+ \end{tikzpicture}
+\end{tkzexample} 
+\end{center}
+
+\vfill\newpage
+\subsection{\tkzname{The Doyle graph : form 2}}
+
+\begin{center}
+\begin{tkzexample}[vbox]
+\begin{tikzpicture}
+   \GraphInit[vstyle=Shade]
+   \SetGraphShadeColor{red}{Magenta}{white} 
+   \SetVertexNoLabel
+   \grDoyle[form=2,RA=7]
+ \end{tikzpicture}
+\end{tkzexample} 
+\end{center}
+
+\vfill\newpage
+\subsection{\tkzname{The Doyle graph : form 3}}
+\begin{center}
+ \begin{tkzexample}[vbox]
+\begin{tikzpicture} 
+  \SetGraphArtColor{red}{Magenta}{red}
+   \GraphInit[vstyle=Shade]
+   \SetVertexNoLabel 
+   \grDoyle[form=3,RA=7,RB=2]
+ \end{tikzpicture}
+\end{tkzexample} 
+\end{center}
+
+
+\vfill\newpage
+
+\subsection{27 nodes but not isomorphic to the Doyle graph}
+
+\begin{center}
+\begin{tkzexample}[vbox]
+\begin{tikzpicture}[scale=.6] 
+   \tikzstyle{VertexStyle} = [shape           = circle,
+                              ball color      = gray!60,
+                              minimum size    = 16pt,draw]
+   \tikzstyle{EdgeStyle}   = [thick,color=black,%
+                              double          = orange,%
+                              double distance = 1pt] 
+   \SetVertexNoLabel
+   \grCycle[RA=7.5]{9}
+   \grEmptyCycle[prefix=b,RA=5.5]{9}
+   \grCirculant[prefix=c,RA=3.5]{9}{4}
+   \EdgeIdentity{b}{c}{9}
+   \EdgeMod{a}{c}{9}{1}
+   \EdgeMod{a}{b}{9}{1}
+   \EdgeInGraphMod{b}{9}{2}
+   \end{tikzpicture}
+\end{tkzexample} 
+\end{center}
+
+
+\endinput
\ No newline at end of file
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