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pgfplots：在图形和图表中使用无衬线字体来表示数字和文本（而非变量）

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pgfplots：在图形和图表中使用无衬线字体来表示数字和文本（而非变量）

我想在图形和图表中使用无衬线字体。这也适用于表格（相关问题）。

正常文本应保持罗马字体（带衬线）。

以下是尝试实现此目的的正常方法：

解决方案 1（不完美）

\documentclass[]{article}

% Creating beautiful diagrams
\usepackage{pgfplots}

% Figure placement with 'H'
\usepackage{float}

% Better math support
\usepackage{amsmath}

% customize caption of figures and so on
\usepackage[%
    font={small,sf}, % <-- Sans Serif option
    labelfont=bf,   
    format=plain,
]{caption}

\begin{document}

\section*{Standard Options -- Easy to Find}

\begin{figure}[H]
\centering
\begin{tikzpicture}
    \begin{axis}[
        % options
        xlabel={$x$},
        ylabel={$y$},
        axis x line = middle,
        axis y line = middle,  
        font={\sffamily}, % <-- Sans Serif option 
        enlargelimits,
        ]
        %% Plot 1
        \addplot+[
        % options
        no markers,
        ] plot coordinates {
            (-1,-1)
            (1,1)
            (4,4)
        };
        \addlegendentry{Plot 1}
        %% Plot 2
        \addplot+[
        % options  
        no markers,
        smooth,
        domain=-2:2,      
        ]
           {x^2};
        \addlegendentry{Plot 2}
    \end{axis}
    \end{tikzpicture}
\caption{Test caption to demonstrate some effects. Plot 1 shows a linear function and plot 2 shows a curved function. We have $n=2$ plots here.}
\end{figure}

\end{document}

在此处输入图片描述

这是使用

  • font={\sffamily}（axis选项）
  • font={small,sf}（caption套餐选项）

这问题2轴刻度仍然不是无衬线的，对于标题来说也是如此。

解决方案 2（完美 - 但需要大量手动工作）

因此下一个解决方案是添加手动调整：

\section*{Manuel Adjustments}

\begin{figure}[H]
\centering
\begin{tikzpicture}
    \begin{axis}[
        % options
        xlabel={$x$},
        ylabel={$y$},
        axis x line = middle,
        axis y line = middle,  
        font={\sffamily}, % <-- Sans Serif option 
        enlargelimits,
        % manual adjustments
        ytick={2,4},
        yticklabels={2,4},
        xtick={-2,-1,1,2,3,4},
        xticklabels={$-$2,$-$1,1,2,3,4},        
        ]
        %% Plot 1
        \addplot+[
        % options
        no markers,
        ] plot coordinates {
            (-1,-1)
            (1,1)
            (4,4)
        };
        \addlegendentry{Plot 1}
        %% Plot 2
        \addplot+[
        % options  
        no markers,
        smooth,
        domain=-2:2,      
        ]
           {x^2};
        \addlegendentry{Plot 2}
    \end{axis}
    \end{tikzpicture}
\caption{Test caption to demonstrate some effects. Plot 1 shows a linear function and plot 2 shows a curved function. We have % 
$n=\text{2}$ % <-- manual adjustments
plots here.}
\end{figure}

在此处输入图片描述

我补充道

ytick={2,4},
yticklabels={2,4},
xtick={-2,-1,1,2,3,4},
xticklabels={$-$2,$-$1,1,2,3,4},

到axis选项并添加到$n=\text{2}$标题中（\text由包提供amsmath）。

这问题是必须要完成的手工工作。

解决方案 3（不完美）

\section*{Changing the \texttt{tick style}}

\begin{figure}[H]
\centering
\begin{tikzpicture}
    \begin{axis}[
        % options
        xlabel={$x$},
        ylabel={$y$},
        axis x line = middle,
        axis y line = middle,  
        font={\sffamily}, % <-- Sans Serif option 
        enlargelimits,
        % better style
        yticklabel={\tick}, % watch out: not yticklabels (no s) 
        xticklabel={\tick}, % watch out: not xticklabels (no s) 
        ]
        %% Plot 1
        \addplot+[
        % options
        no markers,
        ] plot coordinates {
            (-1,-1)
            (1,1)
            (4,4)
        };
        \addlegendentry{Plot 1}
        %% Plot 2
        \addplot+[
        % options  
        no markers,
        smooth,
        domain=-2:2,      
        ]
           {x^2};
        \addlegendentry{Plot 2}
    \end{axis}
    \end{tikzpicture}
\caption{Test caption to demonstrate some effects. Plot 1 shows a linear function and plot 2 shows a curved function. We have % 
$n=\text{2}$ % <-- manual adjustments
plots here.}
\end{figure}

在此处输入图片描述

在这里我添加了

yticklabel={\tick}, % watch out: not yticklabels (no s) 
xticklabel={\tick}, % watch out: not xticklabels (no s)

但问题是因为零太多了。

解决方案 4（近乎完美）

\begin{figure}[H]
\centering
\begin{tikzpicture}
    \begin{axis}[
        % options
        xlabel={$x$},
        ylabel={$y$},
        axis x line = middle,
        axis y line = middle,  
        font={\sffamily}, % <-- Sans Serif option 
        enlargelimits,
        % better style
        yticklabel={\pgfmathparse{\tick}\pgfmathprintnumber[precision=1,fixed zerofill=false,assume math mode]{\pgfmathresult}},    % watch out: not yticklabels (no s) 
        xticklabel={\pgfmathparse{\tick}\pgfmathprintnumber[precision=1,fixed zerofill=false,assume math mode]{\pgfmathresult}},    % watch out: not xticklabels (no s) 
        ]
        %% Plot 1
        \addplot+[
        % options
        no markers,
        ] plot coordinates {
            (-1,-1)
            (1,1)
            (4,4)
        };
        \addlegendentry{Plot 1}
        %% Plot 2
        \addplot+[
        % options  
        no markers,
        smooth,
        domain=-2:2,      
        ]
           {x^2};
        \addlegendentry{Plot 2}
    \end{axis}
    \end{tikzpicture}
\caption{Test caption to demonstrate some effects. Plot 1 shows a linear function and plot 2 shows a curved function. We have % 
$n=\text{2}$ % <-- manual adjustments
plots here.}
\end{figure}

在此处输入图片描述

在这里我添加了

yticklabel={\pgfmathparse{\tick}\pgfmathprintnumber[precision=1,fixed zerofill=false,assume math mode]{\pgfmathresult}},    % watch out: not yticklabels (no s) 
xticklabel={\pgfmathparse{\tick}\pgfmathprintnumber[precision=1,fixed zerofill=false,assume math mode]{\pgfmathresult}},    % watch out: not xticklabels (no s)

这问题是刻度中的减号未在数学模式中设置。其余部分对我来说看起来不错。

问题：如何解决标题和图表中的数字和普通文本（不是数学变量，如 $x$ 或 $\gamma$）使用无衬线字体的问题？

这里是完全的 LaTeX包含所有四种解决方案的代码：

\documentclass[]{article}

% Creating beautiful diagrams
\usepackage{pgfplots}

% Figure placement with 'H'
\usepackage{float}

% Better math support
\usepackage{amsmath}

% customize caption of figures and so on
\usepackage[%
    font={small,sf}, % <-- Sans Serif option
    labelfont=bf,   
    format=plain,
]{caption}

\begin{document}

\section*{Standard Options -- Easy to Find}

\begin{figure}[H]
\centering
\begin{tikzpicture}
    \begin{axis}[
        % options
        xlabel={$x$},
        ylabel={$y$},
        axis x line = middle,
        axis y line = middle,  
        font={\sffamily}, % <-- Sans Serif option 
        enlargelimits,
        ]
        %% Plot 1
        \addplot+[
        % options
        no markers,
        ] plot coordinates {
            (-1,-1)
            (1,1)
            (4,4)
        };
        \addlegendentry{Plot 1}
        %% Plot 2
        \addplot+[
        % options  
        no markers,
        smooth,
        domain=-2:2,      
        ]
           {x^2};
        \addlegendentry{Plot 2}
    \end{axis}
    \end{tikzpicture}
\caption{Test caption to demonstrate some effects. Plot 1 shows a linear function and plot 2 shows a curved function. We have $n=2$ plots here.}
\end{figure}

\section*{Manuel Adjustments}

\begin{figure}[H]
\centering
\begin{tikzpicture}
    \begin{axis}[
        % options
        xlabel={$x$},
        ylabel={$y$},
        axis x line = middle,
        axis y line = middle,  
        font={\sffamily}, % <-- Sans Serif option 
        enlargelimits,
        % manual adjustments
        ytick={2,4},
        yticklabels={2,4},
        xtick={-2,-1,1,2,3,4},
        xticklabels={$-$2,$-$1,1,2,3,4},        
        ]
        %% Plot 1
        \addplot+[
        % options
        no markers,
        ] plot coordinates {
            (-1,-1)
            (1,1)
            (4,4)
        };
        \addlegendentry{Plot 1}
        %% Plot 2
        \addplot+[
        % options  
        no markers,
        smooth,
        domain=-2:2,      
        ]
           {x^2};
        \addlegendentry{Plot 2}
    \end{axis}
    \end{tikzpicture}
\caption{Test caption to demonstrate some effects. Plot 1 shows a linear function and plot 2 shows a curved function. We have % 
$n=\text{2}$ % <-- manual adjustments
plots here.}
\end{figure}

\section*{Changing the \texttt{tick style}}

\begin{figure}[H]
\centering
\begin{tikzpicture}
    \begin{axis}[
        % options
        xlabel={$x$},
        ylabel={$y$},
        axis x line = middle,
        axis y line = middle,  
        font={\sffamily}, % <-- Sans Serif option 
        enlargelimits,
        % better style
        yticklabel={\tick}, % watch out: not yticklabels (no s) 
        xticklabel={\tick}, % watch out: not xticklabels (no s) 
        ]
        %% Plot 1
        \addplot+[
        % options
        no markers,
        ] plot coordinates {
            (-1,-1)
            (1,1)
            (4,4)
        };
        \addlegendentry{Plot 1}
        %% Plot 2
        \addplot+[
        % options  
        no markers,
        smooth,
        domain=-2:2,      
        ]
           {x^2};
        \addlegendentry{Plot 2}
    \end{axis}
    \end{tikzpicture}
\caption{Test caption to demonstrate some effects. Plot 1 shows a linear function and plot 2 shows a curved function. We have % 
$n=\text{2}$ % <-- manual adjustments
plots here.}
\end{figure}


\begin{figure}[H]
\centering
\begin{tikzpicture}
    \begin{axis}[
        % options
        xlabel={$x$},
        ylabel={$y$},
        axis x line = middle,
        axis y line = middle,  
        font={\sffamily}, % <-- Sans Serif option 
        enlargelimits,
        % better style
        yticklabel={\pgfmathparse{\tick}\pgfmathprintnumber[precision=1,fixed zerofill=false,assume math mode]{\pgfmathresult}},    % watch out: not yticklabels (no s) 
        xticklabel={\pgfmathparse{\tick}\pgfmathprintnumber[precision=1,fixed zerofill=false,assume math mode]{\pgfmathresult}},    % watch out: not xticklabels (no s) 
        ]
        %% Plot 1
        \addplot+[
        % options
        no markers,
        ] plot coordinates {
            (-1,-1)
            (1,1)
            (4,4)
        };
        \addlegendentry{Plot 1}
        %% Plot 2
        \addplot+[
        % options  
        no markers,
        smooth,
        domain=-2:2,      
        ]
           {x^2};
        \addlegendentry{Plot 2}
    \end{axis}
    \end{tikzpicture}
\caption{Test caption to demonstrate some effects. Plot 1 shows a linear function and plot 2 shows a curved function. We have % 
$n=\text{2}$ % <-- manual adjustments
plots here.}
\end{figure}

\end{document}

答案1

您可以设置一个数学版本，其中数字是无衬线字体，其他字符则照常显示。要做到这一点，需要将数字放在自己的类别中。在下面的代码中，调用新版本，sfnums只需执行 即可使其生效\mathversion{sfnums}。这大大简化了您对刻度标签的处理。

示例输出

\documentclass{article}

% Creating beautiful diagrams
\usepackage{pgfplots}
\pgfplotsset{compat=1.10}

% Figure placement with 'H'
\usepackage{float}

% Better math support
\usepackage{amsmath}

\DeclareSymbolFont{numbers}{OT1}{cmr}{m}{n}
\DeclareMathSymbol{0}{\mathalpha}{numbers}{`0}
\DeclareMathSymbol{1}{\mathalpha}{numbers}{`1}
\DeclareMathSymbol{2}{\mathalpha}{numbers}{`2}
\DeclareMathSymbol{3}{\mathalpha}{numbers}{`3}
\DeclareMathSymbol{4}{\mathalpha}{numbers}{`4}
\DeclareMathSymbol{5}{\mathalpha}{numbers}{`5}
\DeclareMathSymbol{6}{\mathalpha}{numbers}{`6}
\DeclareMathSymbol{7}{\mathalpha}{numbers}{`7}
\DeclareMathSymbol{8}{\mathalpha}{numbers}{`8}
\DeclareMathSymbol{9}{\mathalpha}{numbers}{`9}

\DeclareMathVersion{sfnums}
\SetSymbolFont{numbers}{sfnums}{OT1}{cmss}{m}{n}
\SetSymbolFont{numbers}{bold}{OT1}{cmr}{bx}{n}

% customize caption of figures and so on
\usepackage{caption}
\DeclareCaptionFont{mathsfnums}{\mathversion{sfnums}}
\captionsetup{font={small,sf,mathsfnums}, % <-- Sans Serif option
    labelfont=bf,   
    format=plain}
\begin{document}

\begin{figure}[H]
\centering
\begin{tikzpicture}
    \begin{axis}[
        % options
        xlabel={$x$},
        ylabel={$y$},
        axis x line = middle,
        axis y line = middle,  
        font={\sffamily\mathversion{sfnums}},
        enlargelimits]
        %% Plot 1
        \addplot+[
        % options
        no markers,
        ] plot coordinates {
            (-1,-1)
            (1,1)
            (4,4)
        };
        \addlegendentry{Plot 1}
        %% Plot 2
        \addplot+[
        % options  
        no markers,
        smooth,
        domain=-2:2,      
        ]
           {x^2};
        \addlegendentry{Plot 2}
    \end{axis}
    \end{tikzpicture}
    \caption{Test caption to demonstrate some effects. Plot 1 shows a
    linear function and plot 2 shows a curved function. We have $n=2$
    plots here.}
\end{figure}

More text and math \( n=2 \) that is unaffected.

\end{document}

这是使用 LuaLaTeX 的版本。它\mathversion没有像我预期的那样工作，而且定义一个命令来切换无衬线数字似乎更容易。

lualatex 输出示例

\documentclass{article}

% Creating beautiful diagrams
\usepackage{pgfplots}
\pgfplotsset{compat=1.10}

% Better math support
\usepackage{amsmath}

\usepackage{unicode-math}
\defaultfontfeatures{Mapping=tex-text}
\setmainfont{XITS}
\setsansfont[Scale=MatchLowercase]{TeX Gyre Heros}
\setmathfont{XITS Math}
\newcommand{\sfnums}{\setmathfont[range={"0030-"0039},Scale=MatchLowercase]{TeX Gyre Heros}}

% customize caption of figures and so on
\usepackage{caption}
\DeclareCaptionFont{mathsfnums}{\sfnums}
\captionsetup{font={small,sf,mathsfnums}, % <-- Sans Serif option
    labelfont=bf,   
    format=plain}
\begin{document}

\begin{figure}[h]
\centering
\begin{tikzpicture}
    \begin{axis}[
        % options
        xlabel={$x$},
        ylabel={$y$},
        axis x line = middle,
        axis y line = middle,  
        font={\sffamily\sfnums},
        enlargelimits]
        %% Plot 1
        \addplot+[
        % options
        no markers,
        ] plot coordinates {
            (-1,-1)
            (1,1)
            (4,4)
        };
        \addlegendentry{Plot 1}
        %% Plot 2
        \addplot+[
        % options  
        no markers,
        smooth,
        domain=-2:2,      
        ]
           {x^2};
        \addlegendentry{Plot 2}
    \end{axis}
    \end{tikzpicture}
    \caption{Test caption to demonstrate some effects. Plot 1 shows a
    linear function and plot 2 shows a curved function. We have $n=2$
    plots here.}
\end{figure}

More text and math \( n=2 \) that is unaffected.

\end{document}

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