MA0301/exam/graphics/17.tex

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TeX

\newcommand{\point}[4]{
\node [label=#3:#4] (#1) at #2 {};
}
\newcommand{\wpath}[3]{
\draw (#1) -- (#2) node [midway, above, sloped] (Tx#1#2) {{\tiny $#3$}};
}
\begin{tikzpicture}[]
\begin{scope}[every node/.style={fill=black, shape=circle, inner sep=1pt}]
\point{1}{(0,1)}{left}{$v_1$}
\point{2}{(1,2)}{above}{$v_2$}
\point{3}{(1,0)}{below}{$v_3$}
\point{4}{(3,2)}{above left}{$v_4$}
\point{5}{(3,0)}{below right}{$v_5$}
\point{6}{(5,2)}{above left}{$v_6$}
\point{7}{(5,0)}{above left}{$v_7$}
\point{8}{(6,1)}{above right}{$v_8$}
\end{scope}
\wpath{1}{3}{1}
\wpath{2}{3}{2}
\wpath{7}{8}{2}
\wpath{3}{5}{3}
\wpath{4}{5}{4}
\wpath{6}{8}{5}
\wpath{5}{6}{6}
\wpath{6}{7}{7}
\wpath{5}{7}{8}
\wpath{4}{6}{9}
\wpath{2}{5}{10}
\wpath{2}{4}{11}
\wpath{1}{2}{12}
\end{tikzpicture}