我正在尝试调整交通灯命令（从之前问题的一些答案中找到），使得节点（圆圈）的边框变为黑色（draw = black!100里面的线nodes），但似乎draw = black!100没有任何改变。
\documentclass[a4paper,fontsize=12pt]{article}
\usepackage{tikz}
\usetikzlibrary{fit, matrix, positioning}
\newcommand\trafficlight[3]
{
\begin{tikzpicture}[baseline=-1.5mm]
\matrix (m) [matrix of nodes,
ampersand replacement = \&,
rounded corners,
draw = blue!100,
% fill = blue!30,
column sep = 1.5mm,
nodes = {circle, draw = black!100, fill = #1, minimum size = 5mm, inner sep = 0mm,
anchor = center},
]
{
|[#1]| \& |[#2]| \& |[#3]| \\
};
\end{tikzpicture}
}
\begin{document}
\trafficlight{red}{yellow}{green}
\end{document}
我将非常感激任何帮助！
答案1
|[#1]|设置绘制和填充颜色。尝试：
\documentclass[a4paper,fontsize=12pt]{article}
\usepackage{tikz}
\usetikzlibrary{fit, matrix, positioning}
\newcommand\trafficlight[3]
{
\begin{tikzpicture}[baseline=-1.5mm]
\matrix (m) [matrix of nodes,
ampersand replacement = \&,
rounded corners,
draw = blue,
% fill = blue!30,
column sep = 1.5mm,
nodes = {circle, draw = black, fill = #1, minimum size = 5mm, inner sep = 0mm,
anchor = center},
]
{
|[fill=#1]| \& |[fill=#2]| \& |[fill=#3]| \\
};
\end{tikzpicture}
}
\begin{document}
\trafficlight{red}{yellow}{green}
\end{document}
顺便说一句，fontsize不是一个有效的选项（12pt是），并且black!100与 相同black。此外，您的宏在 周围添加了几个空格...
