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added my TikZ examples

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Martin Thoma 2012-08-09 07:04:38 +02:00
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tikz/bellman-ford-algorithm/bellman-ford-algorithm.tex Normal file
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\documentclass{beamer}
\usepackage{tikz}
\usepackage{verbatim}
\usetikzlibrary{arrows,shapes}
\begin{document}
\pgfdeclarelayer{background}
\pgfsetlayers{background,main}
\tikzset{
vertex/.style={
circle,
fill=black!25,
minimum size=20pt,
inner sep=0pt,
text height=1ex,
text depth=1ex,
label={[weight label]center:\weight},
label={[pred label]center:\pred}
},
pred label/.style={
font=\tiny,
xshift=0.3em,
yshift=-0.8ex,
text height=1ex,
text depth=0pt
},
weight label/.style={
font=\tiny,
xshift=-0.3em,
yshift=-0.8ex,
text height=1ex,
text depth=0pt
}
}
\tikzstyle{vertexOnly}=[circle,fill=black!25,minimum size=20pt,inner sep=0pt]
\tikzstyle{selected vertex} = [vertex, fill=red!24]
\tikzstyle{edge} = [->,draw,thick]
\tikzstyle{weight} = [font=\small]
\tikzstyle{selected edge} = [draw,line width=5pt,-,red!50]
\tikzstyle{ignored edge} = [draw,line width=5pt,-,black!20]
\begin{frame}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Given Graph %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{figure}
\begin{tikzpicture}[scale=2.5, auto,swap]
% First we draw the vertices
\foreach \pos/\name in {{(0,2)/a}, {(1,2)/b}, {(2,2)/c},
{(0,1)/d}, {(1,1)/e}, {(2,1)/f},
{(0,0)/g}, {(1,0)/h}, {(2,0)/i}}
\node[vertexOnly] (\name) at \pos {$\name$};
% Connect vertices with edges and draw weights
\foreach \source/ \dest /\weight/\style in {a/b/0/, b/c/1/, a/d/2/, e/d/5/,
b/e/3/bend right, e/b/-1/bend right, b/f/4/above, f/i/3/,
i/e/1/, g/h/1/}
\path (\source) edge[->,\style, thick] node {$\weight$} (\dest);
\end{tikzpicture}
\end{figure}
\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Initialisation %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{frame}
\begin{figure}
\begin{tikzpicture}[scale=2.5, auto,swap]
% First we draw the vertices
\foreach \pos/\name/\weight/\pred in {
{(0,2)/a/$0$/-},{(1,2)/b/$\infty$/-}, {(2,2)/c/$\infty$/-},
{(0,1)/d/$\infty$/-}, {(1,1)/e/$\infty$/-}, {(2,1)/f/$\infty$/-},
{(0,0)/g/$\infty$/-}, {(1,0)/h/$\infty$/-}, {(2,0)/i/$\infty$/-}}
\node[vertex] (\name) at \pos {$\name$};
% Connect vertices with edges and draw weights
\foreach \source/ \dest /\weight/\style in {
a/b/0/, b/c/1/, a/d/2/, e/d/5/, b/e/3/bend right,
e/b/-1/bend right, b/f/4/above, f/i/3/, i/e/1/,
g/h/1/}
\path (\source) edge[->,\style, thick] node {$\weight$} (\dest);
\end{tikzpicture}
\end{figure}
\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% first iteraton %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{frame}
\begin{figure}
\begin{tikzpicture}[scale=2.5, auto,swap]
% First we draw the vertices
\foreach \pos/\name/\weight/\pred in {
{(1,2)/b/$\infty$/-}, {(2,2)/c/$\infty$/-},
{(0,1)/d/$\infty$/-}, {(1,1)/e/$\infty$/-}, {(2,1)/f/$\infty$/-},
{(0,0)/g/$\infty$/-}, {(1,0)/h/$\infty$/-}, {(2,0)/i/$\infty$/-}}
\node[vertex] (\name) at \pos {$\name$};
% Connect vertices with edges and draw weights
\foreach \source/ \dest /\weight/\style in {
a/b/0/, b/c/1/, a/d/2/, e/d/5/, b/e/3/bend right,
e/b/-1/bend right, b/f/4/above, f/i/3/, i/e/1/,
g/h/1/}
\path (\source) edge[->,\style, thick] node {$\weight$} (\dest);
\end{tikzpicture}
\end{figure}
\end{frame}
\end{document}