当我使用 pgf 包中的 \scalebox 时，如何使标题居中？

Question

我正在使用pgf 包缩放 .pgf 图像，但我不明白如何将图像缩放到与文本宽度完全相同。因此，标题似乎不在中心，因为它的中心位置参考的是文本中心，而不是图像中心。

这是一个 MWE：

\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{pgf}
\begin{document}
\begin{figure} 
    \centering
    \scalebox{0.5}{\input{test.pgf}}   
    \caption{Can you center me? Can you center me?Can you center me?}   
\end{figure}
\end{document}

在使用这个包时，有没有办法将图像缩放到与文本宽度完全相同？或者有没有办法将标题置于图像中心而不是文本中心？

用于测试的简单 pgf 文件可能是这样的：

\begingroup%
\makeatletter%
\begin{pgfpicture}%
\pgfpathrectangle{\pgfpointorigin}{\pgfqpoint{12.162500in}{9.737500in}}%
\pgfusepath{use as bounding box, clip}%
\begin{pgfscope}%
\pgfsetbuttcap%
\pgfsetmiterjoin%
\definecolor{currentfill}{rgb}{0.300000,0.300000,0.300000}%
\pgfsetfillcolor{currentfill}%
\pgfsetfillopacity{0.500000}%
\pgfsetlinewidth{1.003750pt}%
\definecolor{currentstroke}{rgb}{0.300000,0.300000,0.300000}%
\pgfsetstrokecolor{currentstroke}%
\pgfsetstrokeopacity{0.500000}%
\pgfsetdash{}{0pt}%
\pgfpathmoveto{\pgfqpoint{0.242710in}{0.201968in}}%
\pgfpathlineto{\pgfqpoint{11.948671in}{0.201968in}}%
\pgfpathquadraticcurveto{\pgfqpoint{11.976437in}{0.201968in}}{\pgfqpoint{11.976437in}{0.229735in}}%
\pgfpathlineto{\pgfqpoint{11.976437in}{0.844102in}}%
\pgfpathquadraticcurveto{\pgfqpoint{11.976437in}{0.871868in}}{\pgfqpoint{11.948671in}{0.871868in}}%
\pgfpathlineto{\pgfqpoint{0.242710in}{0.871868in}}%
\pgfpathquadraticcurveto{\pgfqpoint{0.214944in}{0.871868in}}{\pgfqpoint{0.214944in}{0.844102in}}%
\pgfpathlineto{\pgfqpoint{0.214944in}{0.229735in}}%
\pgfpathquadraticcurveto{\pgfqpoint{0.214944in}{0.201968in}}{\pgfqpoint{0.242710in}{0.201968in}}%
\pgfpathclose%
\pgfusepath{stroke}%
\end{pgfscope}%
\end{pgfpicture}%
\makeatother%
\endgroup%

Answer 1

您可以使用 将某些内容缩放到文本宽度\resizebox。或者，如果您的图像大于文本宽度，您可以使用 将其伸出两个边距\makebox：

\documentclass{article}
\usepackage{graphicx}
\begin{document}
\begin{figure}
\centering
\makebox[\textwidth]{\scalebox{1.8}{\rule{10cm}{1cm}}}

\resizebox{\textwidth}{!}{{\rule{10cm}{1cm}}}
\caption{Can you center me? Can you center me?Can you center me?}
\end{figure}
\end{document}

Answer 2

\scalebox由 定义，graphics而不是 由 定义pgf。

如果你想要一个物体变宽\textwidth，那么

  \scalebox{0.5}{...}   

除非原始文本宽度正好是其两倍，否则将不起作用。

使用

   \resizebox{\textwidth}{!}{...}   

Answer 3

我已经使用了\leftskip希望\centering以下答案对您有所帮助：

\begin{figure}
\leftskip-4pt
    \scalebox{0.4}{\input{test.pgf}}
    \caption{Can you center me? Can you center me?Can you center me?}
\end{figure}