带 sansmath 的单音节大写希腊文

Question

在我的博士论文中，正文是 Times 字体，而我的所有图表（及其标题）都使用 Helvetica 字体。我创建了以下 MWE，展示了如何在正文和图表之间切换 Times 和 Helvetica。我目前的问题是，我没有一种自动的方法将所有大写希腊字母设置为非斜体。所有其他数学符号（小写和大写罗马字母）都应使用斜体。这是我所在领域的惯例。

我现在唯一的解决方法是在文档中每个大写希腊字母前添加一个 \mathrm。

\documentclass[11pt]{report}
\usepackage{tgheros,textcomp}
\usepackage{mathptmx}
\usepackage{sansmath} % sans serif math
\usepackage{amsmath}
\usepackage{tikz}
\usepackage{float}
\usepackage[labelfont=bf, font={small,sf}]{caption}

% Credit: https://tex.stackexchange.com/a/444408/61268
\usepackage{etoolbox} % nice command patching
\usepackage{everyhook} % nice \every... patching
% restyle figures to make \everymath=\sansmath (float package)
\restylefloat{figure}
\floatevery{figure}{\PushPreHook{math}{\sansmath}}
% undo the change to \everymath at the end of the figure (etoolbox)
\apptocmd{\endfigure}{\PopPreHook{math}}{}{}

\tikzset{font=\sffamily\small}
\usepackage{import}

\begin{document}

Main text is in Times. Works without a problem.

\begin{equation}
    \Delta\Omega(t)
\end{equation}

My problem is in the figures, which I usually typeset using Ti\emph{k}z

\begin{figure}[H]
    \centering
    \begin{tikzpicture}
    \node[draw] at (0, 0) {Helvetica Equation: $\Delta\Omega(t)$};
    \end{tikzpicture}
    \caption{Captions are in Helvetica. $\Delta\Omega(t)$}
\end{figure}

I found that I can get a fix if I manually put a {\textbackslash}mathrm around all of my capital Greek letters, but I would like to find a way for this to automatically be done.

\begin{figure}[H]
    \centering
    \begin{tikzpicture}
    \node[draw] at (0, 0) {{\textbackslash}mathrm: $\mathrm{\Delta\Omega}(t)$};
    \end{tikzpicture}
    \caption{I can fix with {\textbackslash}mathrm... $\mathrm{\Delta\Omega}(t)$}
\end{figure}

\end{document}

Answer 1

如果您可以使用 LuaLaTeX 或 XeLaTeX，则可以使用 来执行此操作unicode-math。

但是，强制直立无衬线希腊文的命令是\symsfup，而不是\mathrm。

\Delta\Omega或者，输入而不是\increment\mupOmega。这样您就可以使用\mathrm字体中的直立希腊字母来表示version=sans。

\documentclass[11pt]{report}
\tracinglostchars=2
\usepackage[math-style=TeX]{unicode-math}
\usepackage{tikz}
\usepackage{float}
\usepackage[labelfont=bf, font={small,sf}]{caption}

\defaultfontfeatures{ Scale = MatchLowercase, Ligatures=TeX }

\setmainfont{TeX Gyre Termes}[Scale=1.0]
\setsansfont{TeX Gyre Heros}
\setmathfont{TeX Gyre Termes Math}
\setmathfont{KPMath-Sans.otf}[version=sans]
\setmathfontface\mathrm{TeX Gyre Termes Math}
\setmathfontface\mathrm{TeX Gyre Heros}[version=sans]

\newcommand\sansmath{\mathversion{sans}}

% Credit: https://tex.stackexchange.com/a/444408/61268
\usepackage{etoolbox} % nice command patching
 \usepackage{everyhook} % nice \every... patching
% restyle figures to make \everymath=\sansmath (float package)
\restylefloat{figure}
 \floatevery{figure}{\PushPreHook{math}{\sansmath}}
% undo the change to \everymath at the end of the figure (etoolbox)
 \apptocmd{\endfigure}{\PopPreHook{math}}{}{}

\tikzset{font=\sffamily\small\sansmath}
\usepackage{import}

\begin{document}

Main text is in Times. Works without a problem.

\begin{equation}
    \Delta\Omega(t)
\end{equation}

My problem is in the figures, which I usually typeset using Ti\emph{k}z

\begin{figure}[H]
    \centering
    \begin{tikzpicture}
    \node[draw] at (0, 0) {KPMath-Sans Equation: $\Delta\Omega(t)$};
    \end{tikzpicture}
    \caption{Captions are in Helvetica. $\Delta\Omega(t)$}
\end{figure}

I found that I can get a fix if I manually put a {\textbackslash}mathrm around all of my capital Greek letters, but I would like to find a way for this to automatically be done.

\begin{figure}[H]
    \centering
    \begin{tikzpicture}
    \node[draw] at (0, 0) {{\textbackslash}symsfup: $\symsfup{\Delta\Omega}(t)$};
    \end{tikzpicture}
    \caption{I can fix with {\textbackslash}symsfup... $\symsfup{\Delta\Omega}(t)$}
\end{figure}

While {\textbackslash}mathrm does not allow {\textbackslash}Delta{\textbackslash}Omega with this configuration,
\(\mathrm{\increment\mupOmega}\) works.

我对您用来设置要使用的标题的复制代码非常怀疑\sansmath，因为它警告我该命令在数学模式下无效。