如果我想指定某个对象的尺寸（例如）rule{<width>}{<height>}，使得这些尺寸是其他对象的尺寸，那么我如何获取（测量）这些其他对象的高度和宽度并将它们传递给的参数rule{<width>}{<height>}。我正在寻找某种东西，它可以接受合适的对象Object并给出其尺寸之一，例如h = \height{Object_1}，或者像w = \height{Object_2}。
主要问题是获得给定物体的尺寸，不使用这rule
答案1
LaTeX 提供了\settowidth{<len>}{<stuff>}和\settoheight{<len>}{<stuff>}，用于设置 的<len>宽度或高度<stuff>。以下是示例：
\documentclass{article}
\begin{document}
\newlength{\mylen}
abc has width
\settowidth{\mylen}{abc}\the\mylen,
height
\settoheight{\mylen}{abc}\the\mylen{}
and depth
\settodepth{\mylen}{abc}\the\mylen.
def has width
\settowidth{\mylen}{def}\the\mylen,
height
\settoheight{\mylen}{def}\the\mylen{}
and depth
\settodepth{\mylen}{def}\the\mylen.
ghi has width
\settowidth{\mylen}{ghi}\the\mylen,
height
\settoheight{\mylen}{ghi}\the\mylen{}
and depth
\settodepth{\mylen}{ghi}\the\mylen.
\end{document}
您还可以将内容捕获到一个框中，然后从那里提取尺寸（宽度通过\wd<box>，高度通过\ht<box>，深度通过\dp<box>）：
\documentclass{article}
\begin{document}
\newsavebox{\mybox}
\savebox{\mybox}{abc}%
abc has width \the\wd\mybox,
height \the\ht\mybox{}
and depth \the\dp\mybox.
\savebox{\mybox}{def}%
def has width \the\wd\mybox,
height \the\ht\mybox{}
and depth \the\dp\mybox.
\savebox{\mybox}{ghi}%
ghi has width \the\wd\mybox,
height \the\ht\mybox{}
and depth \the\dp\mybox.
\end{document}
\the上面只是用来打印长度。参见命令\the。