</WRAP></WRAP> <file latex axes3D.tex> % Author: Izaak Neutelings (July 2017) \documentclass{article} \usepackage{amsmath} % for \text \usepackage{tikz} \tikzset{>=latex} % for LaTeX arrow head \definecolor{mylightred}{RGB}{255,200,200} \definecolor{mylightblue}{RGB}{172,188,63} \definecolor{mylightgreen}{RGB}{150,220,150} % split figures into pages \usepackage[active,tightpage]{preview} \PreviewEnvironment{tikzpicture} \setlength\PreviewBorder{1pt}% \begin{document} \begin{tikzpicture}[scale=3] % limits \def\N{4} \def\R{1.2} % axis labels \node[scale=0.8,below left=1pt] at (0,\R) {$y$}; \node[scale=0.8,below left=1pt] at (\R,0) {$z$}; % lines \foreach \t/\e in {90/0,60/0.55,45/0.88,30/1.32,10/2.44,0/\infty}{ \draw[→,black!60!red,thick] %samples=\N,variable=\x,domain=0:1] (0,0) – ({\R*cos(\t)},{\R*sin(\t)}) %plot({\x*\R*cos(\t)},{\x*\R*sin(\t)}) % alternative way with plotting a linear function node[anchor=180+\t,black] {$\eta=\e$}; \node[fill=white,scale=0.8] at ({0.8*cos(\t)},{0.8*sin(\t)}) {$\theta=\t^\circ$}; } \end{tikzpicture} \end{document} </file>