TikZ：pgfmathprintnumber 的 sffamily

Question

我如何才能\sffamily获得\pgfmathprintnumber？

\documentclass[tikz, border=5mm]{standalone}
\usepackage{tikz}
\begin{document}
\begin{tikzpicture}[
font=\Huge\sffamily, % wanted
align=left
]
\node[draw, label={1.23}]{good\\ 1.23};

\node[xshift=3cm, draw, label={\pgfmathprintnumber[]{1.23}},
]{bad \\ \pgfmathprintnumber[fixed]{1.23}};
\end{tikzpicture}
\end{document}

Answer 1

已编辑以避免丢失格式信息。我所做的是创建一个宏

\newcommand\pgfmathsfprintnumber[2][]{%
  \pgfmathprintnumberto[#1]{#2}\z 
  \expandafter\zz\z}
\newcommand\zz[2]{#1{\mathsf{#2}}}

发送 ，\pgfmathprintnumber不进行排版，而是放置在宏中\z。它的格式是\pgfutilensuremath{1.23}。所以我要做的是吸收两个参数并将它们重新表达为\pgfutilensuremath{\mathsf{1.23}}

\documentclass[tikz, border=5mm]{standalone}
\newcommand\pgfmathsfprintnumber[2][]{%
  \pgfmathprintnumberto[#1]{#2}\z 
  \expandafter\zz\z}
\newcommand\zz[2]{#1{\mathsf{#2}}}
\usepackage{tikz}
\begin{document}
\begin{tikzpicture}[
font=\Huge\sffamily, % wanted
align=left
]
\node[draw, label={1.23}]{good\\ 1.23};

\node[xshift=3cm, draw, label={\pgfmathsfprintnumber{1.23}},
]{bad \\ \pgfmathsfprintnumber[fixed]{1.23}};
\end{tikzpicture}
\end{document}