102918637SMatthew G. Knepleysegment orientation -1 202918637SMatthew G. Knepley\documentclass[tikz]{standalone} 302918637SMatthew G. Knepley 402918637SMatthew G. Knepley\usepackage{pgflibraryshapes} 502918637SMatthew G. Knepley\usetikzlibrary{backgrounds} 602918637SMatthew G. Knepley\usetikzlibrary{arrows} 702918637SMatthew G. Knepley\begin{document} 86913077dSMatthew G. Knepley\begin{tikzpicture}[scale = 1.,font=\fontsize{8}{8}\selectfont] 9*38cc584fSMatthew G. Knepley\path (0.) node(2_0) [draw,shape=circle,color=gray] {2}; 10*38cc584fSMatthew G. Knepley\path (2.) node(3_0) [draw,shape=circle,color=gray] {3}; 1102918637SMatthew G. Knepley\path (-2.) node(4_0) [draw,shape=circle,color=gray] {4}; 12*38cc584fSMatthew G. Knepley\draw[color=gray] (4_0) -- (2_0); 13*38cc584fSMatthew G. Knepley\draw[color=gray] (2_0) -- (3_0); 1402918637SMatthew G. Knepley\path (-1.) node(0_0) [] {}; 1502918637SMatthew G. Knepley\path (1.) node(1_0) [] {}; 1602918637SMatthew G. Knepley\end{tikzpicture} 1702918637SMatthew G. Knepley\end{document} 1802918637SMatthew G. Knepleysegment orientation 0 1902918637SMatthew G. Knepley\documentclass[tikz]{standalone} 2002918637SMatthew G. Knepley 2102918637SMatthew G. Knepley\usepackage{pgflibraryshapes} 2202918637SMatthew G. Knepley\usetikzlibrary{backgrounds} 2302918637SMatthew G. Knepley\usetikzlibrary{arrows} 2402918637SMatthew G. Knepley\begin{document} 256913077dSMatthew G. Knepley\begin{tikzpicture}[scale = 1.,font=\fontsize{8}{8}\selectfont] 26*38cc584fSMatthew G. Knepley\path (0.) node(2_0) [draw,shape=circle,color=gray] {2}; 27*38cc584fSMatthew G. Knepley\path (-2.) node(3_0) [draw,shape=circle,color=gray] {3}; 2802918637SMatthew G. Knepley\path (2.) node(4_0) [draw,shape=circle,color=gray] {4}; 29*38cc584fSMatthew G. Knepley\draw[color=gray] (3_0) -- (2_0); 30*38cc584fSMatthew G. Knepley\draw[color=gray] (2_0) -- (4_0); 3102918637SMatthew G. Knepley\path (-1.) node(0_0) [] {}; 3202918637SMatthew G. Knepley\path (1.) node(1_0) [] {}; 3302918637SMatthew G. Knepley\end{tikzpicture} 3402918637SMatthew G. Knepley\end{document} 35