在minipage / subfig中缩放时，控制LaTeX中图形的字体大小？

Question

I am using pgf/tikz graphics and I'm wondering how one can control the scaling of font sizes in the graphics when using them in minipage/subfig environments?

Is there a way to manually set a permanent font size for pgf/tikz graphics or in latex in general so as to make font sizing invariant to scaling?

Ideally I'd like to be able to manually specify a font size per graphic or for all graphics or subfig/minipage environments?

Here is an example of the usage as suggested. Thanks for the help.

\begin{figure}[h]
\centering
\subfloat[Graph 1]{
    \begin{minipage}[h]{0.7\linewidth}
        \centering\beginpgfgraphicnamed{graph1}
        \input{graph1.tex}
        \endpgfgraphicnamed
        \label{fig:graph1}
    \end{minipage}}
\hspace{5pt}
\subfloat[Graph 2]{
    \begin{minipage}[h]{0.5\linewidth}
        \centering\beginpgfgraphicnamed{graph2}
        \input{graph2.tex}
        \endpgfgraphicnamed
        \label{fig:graph2}
    \end{minipage}}
\subfloat[Graph 3]{
    \begin{minipage}[h]{0.5\linewidth}
        \centering\beginpgfgraphicnamed{graph3}
        \input{graph3.tex}
        \endpgfgraphicnamed
        \label{fig:graph3}
    \end{minipage}}
\caption{Three Graphs}
\end{figure}

Perhaps outside of minipage/subfig I can use the suggestions from the other posting to make the font large since the graphic is scaled with the page width? What I was going for in the example was the first image on it's own, larger, and then two smallimages right below side by side with their own captions in one figure.

I saw some R tags in your profile Mica. The graphics are generated using tikzDevice and are picked up in my latex doc.

So I'm generating the files without the tikzpicture environment so that I can manually set options there myself. When I use the \\begin{tikzpicture} \\end{tikzpicture} I get the error "Dimension too large I can't work with sizes bigger than about 19 feet. Continue and I'll use the largest value I can." . I need to use \\beginpgfgraphicnamed{} .. \\endpgfgraphicnamed{} to get it to work? Not sure what the impact is exactly.

Here is a sample of the auto-generated file:

\begin{scope}
\path[clip] (  0.00,  0.00) rectangle (794.97,614.29);
\definecolor[named]{drawColor}{rgb}{0.13,0.76,0.43}
\definecolor[named]{fillColor}{rgb}{0.31,0.94,0.66}
\end{scope}
\begin{scope}
\path[clip] (  0.00,  0.00) rectangle (794.97,614.29);
\definecolor[named]{drawColor}{rgb}{0.13,0.76,0.43}
\definecolor[named]{fillColor}{rgb}{0.31,0.94,0.66}
\end{scope}

........

\begin{scope}
\path[clip] (  0.00,  0.00) rectangle (794.97,614.29);
\definecolor[named]{drawColor}{rgb}{0.13,0.76,0.43}
\definecolor[named]{fillColor}{rgb}{0.31,0.94,0.66}
\definecolor[named]{fillColor}{rgb}{1.00,1.00,1.00}

\draw[fill=fillColor,draw opacity=0.00,] (  0.00,  0.00) rectangle (794.97,614.29);
\end{scope}

........

\begin{scope}
\path[clip] (  0.00,  0.00) rectangle (794.97,614.29);
\definecolor[named]{drawColor}{rgb}{0.13,0.76,0.43}
\definecolor[named]{fillColor}{rgb}{0.31,0.94,0.66}
\definecolor[named]{drawColor}{rgb}{0.00,0.00,0.00}

\node[rotate= 90.00,color=drawColor,anchor=base,inner sep=0pt, outer sep=0pt, scale=  1.00] at ( 15.92,310.59) {Mackenzie Net Sales};
\end{scope}
\begin{scope}
\path[clip] (  0.00,  0.00) rectangle (794.97,614.29);
\definecolor[named]{drawColor}{rgb}{0.13,0.76,0.43}
\definecolor[named]{fillColor}{rgb}{0.31,0.94,0.66}
\end{scope}

Hopefully that is helpful, over all the file is ~1,000 lines so I tried to cut out a representation of the unique bits. Please let me know if you need anything else.

Many thanks,

Jay

Answer 1

I am not exactly sure what your aim is. To change the font size or the size of the Rest of the picture? There are multiple possibilities to reach any of these:

My example box with a 1cm x 1cm large box:

\begin{tikzpicture}
    \draw (0,0) rectangle (1,1) -- +(-1,-1);
    \node(text) at (0.5,0.5) {Text};
\end{tikzpicture}

Scale the graphical elements, but NOT the text:

\begin{tikzpicture}[scale=0.5]
    \draw (0,0) rectangle (1,1) -- +(-1,-1);
    \node(text) at (0.5,0.5) {Text};
\end{tikzpicture}

\begin{tikzpicture}[scale=0.5]
    \draw (0,0) rectangle (1cm,1cm) -- +(-1,-1);
    \node(text) at (0.5cm,0.5cm) {Text};
\end{tikzpicture}

Scale the coordinates only (That is, if no unit is specified, it used multiplies of the specified x, y and z vector):

\begin{tikzpicture}[x=5mm,y=5mm]
    \draw (0,0) rectangle (1,1) -- +(-1,-1);
    \node(text) at (0.5,0.5) {Text};
\end{tikzpicture}

Explicit lengths are not changed with this:

\begin{tikzpicture}[x=5mm,y=5mm]
    \draw (0,0) rectangle (1cm,1cm) -- +(-1cm,-1cm);
    \node(text) at (0.5cm,0.5cm) {Text};
\end{tikzpicture}

Scale everything, even the text (according to the pgfmanual, this is not recommended):

\begin{tikzpicture}[transform canvas={scale=0.5}]
    \draw (0,0) rectangle (1,1) -- +(-1,-1);
    \node(text) at (0.5,0.5) {Text};
\end{tikzpicture}

Same effect using LaTeX commands:

\scalebox{0.5}{
\begin{tikzpicture}
    \draw (0,0) rectangle (1,1) -- +(-1,-1);
    \node(text) at (0.5,0.5) {Text};
\end{tikzpicture}
}

Change the font size locally, but the size of graphical elements are not changed:

\begin{tikzpicture}[font=\scriptsize]
    \draw (0,0) rectangle (1,1) -- +(-1,-1);
    \node(text) at (0.5,0.5) {Text};
\end{tikzpicture}

Change the font size in all subsequent tikzpicture environments ( \\tikzset can be used to set the options above, too):

\tikzset{font=\scriptsize}
\begin{tikzpicture}
    \draw (0,0) rectangle (1,1) -- +(-1,-1);
    \node(text) at (0.5,0.5) {Text};
\end{tikzpicture}

\\tikzset remains local in groups:

\begin{minipage}{\linewidth}
\tikzset{font=\scriptsize}
\begin{tikzpicture}
    \draw (0,0) rectangle (1,1) -- +(-1,-1);
    \node(text) at (0.5,0.5) {Text};
\end{tikzpicture}
\end{minipage}

{
\tikzset{font=\scriptsize}
\begin{tikzpicture}
    \draw (0,0) rectangle (1,1) -- +(-1,-1);
    \node(text) at (0.5,0.5) {Text};
\end{tikzpicture}
}

\begin{tikzpicture}
    \draw (0,0) rectangle (1,1) -- +(-1,-1);
    \node(text) at (0.5,0.5) {Text};
\end{tikzpicture}

I don't know whether you can edit the files graph?.tex , or are these generated? Maybe you can pass options to the program that generates the tikzpicture environment. Otherwise, just set the desired option in your desired scope using \\tikzset .

Hope, that helps.

EDIT : If the options (like font= ) are defined locally in the graph?.tex , then these get precedence over the options defined outside. If this is the case, you just can't overwrite them from the outside. You'd have to edit the files.

EDIT : This "minimal" example works for me (showing a really big "Mackenzie Net Sales" that exceeds the subfigure's width)

\documentclass{article}

\usepackage{fix-cm}
\usepackage{subfig}
\usepackage{tikz}

\begin{document}
\tikzset{every picture/.append style={font=\fontsize{100}{120}\selectfont}}

\begin{figure}[h]
\centering
\subfloat[Graph 1]{
    \begin{minipage}[h]{0.7\linewidth}
        \centering\beginpgfgraphicnamed{graph1}
%        \input{graph1.tex}
        \endpgfgraphicnamed
        \label{fig:graph1}
    \end{minipage}}
\hspace{5pt}
\subfloat[Graph 2]{
    \begin{minipage}[h]{0.5\linewidth}
        \centering 
        \resizebox{\textwidth}{!}{

            %\beginpgfgraphicnamed{graph2}  
\begin{tikzpicture}
\begin{scope}
\path[clip] (  0.00,  0.00) rectangle (79.497,61.429);
\definecolor[named]{drawColor}{rgb}{0.13,0.76,0.43}
\definecolor[named]{fillColor}{rgb}{0.31,0.94,0.66}
\end{scope}
\begin{scope}
\path[clip] (  0.00,  0.00) rectangle (79.497,61.429);
\definecolor[named]{drawColor}{rgb}{0.13,0.76,0.43}
\definecolor[named]{fillColor}{rgb}{0.31,0.94,0.66}
\end{scope}
\begin{scope}
\path[clip] (  0.00,  0.00) rectangle (79.497,61.429);
\definecolor[named]{drawColor}{rgb}{0.13,0.76,0.43}
\definecolor[named]{fillColor}{rgb}{0.31,0.94,0.66}
\definecolor[named]{fillColor}{rgb}{1.00,1.00,1.00}
\draw[fill=fillColor,draw opacity=0.00,] (  0.00,  0.00) rectangle (79.497,61.429);
\end{scope}
\begin{scope}
\path[clip] (  0.00,  0.00) rectangle (79.497,61.429);
\definecolor[named]{drawColor}{rgb}{0.13,0.76,0.43}
\definecolor[named]{fillColor}{rgb}{0.31,0.94,0.66}
\definecolor[named]{drawColor}{rgb}{0.00,0.00,0.00}
\node[rotate= 90.00,color=drawColor,anchor=base,inner sep=0pt, outer sep=0pt, scale=  1.00] at ( 1.592,31.059) {Mackenzie Net Sales};
\end{scope}
\begin{scope}
\path[clip] (  0.00,  0.00) rectangle (79.497,61.429);
\definecolor[named]{drawColor}{rgb}{0.13,0.76,0.43}
\definecolor[named]{fillColor}{rgb}{0.31,0.94,0.66}
\end{scope}
\end{tikzpicture}
}
        %\endpgfgraphicnamed

        \label{fig:graph2}
    \end{minipage}}
\subfloat[Graph 3]{
    \begin{minipage}[h]{0.5\linewidth}
        \centering\beginpgfgraphicnamed{graph3}
%        \input{graph3.tex}
        \endpgfgraphicnamed
        \label{fig:graph3}
    \end{minipage}}
\caption{Three Graphs}
\end{figure}

\end{document}

Please test whether this works for you, too. If it does, then try to modify this one until it doesn't work any more. What's the breaking change?