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为什么节点边框的某些侧在“独立”类中被裁剪？

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为什么节点边框的某些侧在“独立”类中被裁剪？

重要编辑：此类输出在 Adob​​e Acrobat 和 TeXworks (0.6.3) 中呈现。

如果仔细查看输出，你会发现右边框缺失或与左边框相比几乎看不见。这可能是什么？（在另一个窗口中打开图片网址以放大查看）

\documentclass{standalone}
\usepackage{tikz}
\usepackage{varwidth}
\pagecolor{black}
\color{white}
\begin{document}
\begin{varwidth}{150pt}
  \begin{tikzpicture}
    % change line width to 1pt and it will still be slightly narrower on the right side
    \path node[draw=red,line width=0.01pt,inner sep=0,outer sep=0]
 {\begin{varwidth}{140pt}This is sentence 1. This is sentence 2. This is sentence 3. This is sentence 4. This is sentence 5. This is sentence 6. This is sentence 7. This is sentence 8.\end{varwidth}};
  \end{tikzpicture}
% you can disable following line with following varwidth environment but the border will still be cropped due to varwidth environment inside the node
\the\textwidth
\end{varwidth}
\end{document}

编辑：事实证明，当你varwidth全部删除时，不仅右边框会消失，而且底部边框也会消失（我删除了第二句之后的所有句子，否则节点会太长）：

答案1

使用最新的 TeXLive 2019 我无法看到它：

在此处输入图片描述

我的文件列表：

 *File List*
standalone.cls    2018/03/26 v1.3a Class to compile TeX sub-files standalone
shellesc.sty    2016/06/07 v0.02a unified shell escape interface for LaTeX
ifluatex.sty    2016/05/16 v1.4 Provides the ifluatex switch (HO)
   ifpdf.sty    2018/09/07 v3.3 Provides the ifpdf switch
 ifxetex.sty    2010/09/12 v0.6 Provides ifxetex conditional
 xkeyval.sty    2014/12/03 v2.7a package option processing (HA)
 xkeyval.tex    2014/12/03 v2.7a key=value parser (HA)
standalone.cfg    2018/03/26 v1.3a Default configuration file for 'standalone' 
class
 article.cls    2018/09/03 v1.4i Standard LaTeX document class
  size10.clo    2018/09/03 v1.4i Standard LaTeX file (size option)
    tikz.sty    2019/02/02 v3.1.1 (3.1.1)
     pgf.sty    2019/02/02 v3.1.1 (3.1.1)
  pgfrcs.sty    2019/02/02 v3.1.1 (3.1.1)
everyshi.sty    2001/05/15 v3.00 EveryShipout Package (MS)
  pgfrcs.code.tex
 pgfcore.sty    2019/02/02 v3.1.1 (3.1.1)
graphicx.sty    2017/06/01 v1.1a Enhanced LaTeX Graphics (DPC,SPQR)
graphics.sty    2017/06/25 v1.2c Standard LaTeX Graphics (DPC,SPQR)
    trig.sty    2016/01/03 v1.10 sin cos tan (DPC)
graphics.cfg    2016/06/04 v1.11 sample graphics configuration
   xetex.def    2017/06/24 v5.0h Graphics/color driver for xetex
  pgfsys.sty    2019/02/02 v3.1.1 (3.1.1)
  pgfsys.code.tex
pgfsyssoftpath.code.tex    2019/02/02 v3.1.1 (3.1.1)
pgfsysprotocol.code.tex    2019/02/02 v3.1.1 (3.1.1)
  xcolor.sty    2016/05/11 v2.12 LaTeX color extensions (UK)
   color.cfg    2016/01/02 v1.6 sample color configuration
 pgfcore.code.tex
pgfcomp-version-0-65.sty    2019/02/02 v3.1.1 (3.1.1)
pgfcomp-version-1-18.sty    2019/02/02 v3.1.1 (3.1.1)
  pgffor.sty    2019/02/02 v3.1.1 (3.1.1)
 pgfkeys.sty    
 pgfkeys.code.tex
 pgfmath.sty    
 pgfmath.code.tex
  pgffor.code.tex
    tikz.code.tex
varwidth.sty    2009/03/30 ver 0.92;  Variable-width minipages
 ***********

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