我想知道是否可以在函数图中使用计算坐标,如下所示:
\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{calc, positioning}
\begin{document}
\begin{tikzpicture}
\node (ea) at (20,10em) {$e_a$};
\draw plot coordinates{($(ea.north east) + (15,12)$) (0,0)};
\end{tikzpicture}
\end{document}
或者如果我需要使用类似的东西:
\coordinate (test) at ($(ea.north east) + (15,12)$);
\draw plot coordinates{(test) (0,0)};