来自 \tdplotsetmaincoords 的虚假空间

来自 \tdplotsetmaincoords 的虚假空间

由于使用了以下内容,下面的 MWE 结果是虚假空间\tdplotsetmaincoords

在此处输入图片描述

红色是边界框,灰色框来自\fbox{}

包括\unskip\unskip(在 MWE 中注释掉)确实解决了这个问题,但想知道是否有更好的解决方案。

这是一个错误还是有这种间距的原因?

笔记:

  • 移动\tdplotsetmaincoords{70}{115} \begin{document}也解决了这个问题,但这对我来说并不容易,因为我的图形使用了该类standalone并且包含在其他文档中 - 因此我需要在每个图形中对该设置进行本地化。

参考:

代码:

\documentclass{article}
\usepackage{tikz,tikz-3dplot}

\newcommand*{\DrawBoundingBox}[1][]{%
    \draw [
        draw=red, thick,
    ]
    ([shift={(-1pt,-1pt)}]current bounding box.south west) rectangle 
    ([shift={(1pt,1pt)}]current bounding box.north east);
}

\begin{document}
\fboxsep=0pt
\fbox{%
  %% code from https://tex.stackexchange.com/a/29342/4301
  \tdplotsetmaincoords{70}{115}%
  %\unskip\unskip% <----- HACK which fixes the problem.
  \begin{tikzpicture}[scale=4,tdplot_main_coords]
    \coordinate (O) at (0,0,0);
    \tdplotsetcoord{P}{1.414213}{54.68636}{45}

    \draw[fill=gray!50,fill opacity=0.5] (O) -- (Py) -- (Pyz) -- (Pz) -- cycle;
    \draw[fill=blue,fill opacity=0.5] (O) -- (Px) -- (Pxy) -- (Py) -- cycle;
    \draw[fill=yellow,fill opacity=0.5] (O) -- (Px) -- (Pxz) -- (Pz) -- cycle;
    \draw[fill=green,fill opacity=0.5] (Pz) -- (Pyz) -- (P) -- (Pxz) -- cycle;
    \draw[fill=red,fill opacity=0.5] (Px) -- (Pxy) -- (P) -- (Pxz) -- cycle;
    \draw[fill=magenta,fill opacity=0.5] (Py) -- (Pxy) -- (P) -- (Pyz) -- cycle;
    
    \DrawBoundingBox
  \end{tikzpicture}%
}%
\end{document}

答案1

代码中有虚假空格。通知维护者。

\documentclass{article}
\usepackage{tikz}
\usepackage{tikz-3dplot}

\newcommand*{\DrawBoundingBox}[1][]{%
    \draw [
        draw=red, thick,
    ]
    ([shift={(-1pt,-1pt)}]current bounding box.south west) rectangle
    ([shift={(1pt,1pt)}]current bounding box.north east);
}
\renewcommand{\tdplotsetmaincoords}[2]{%
%perform some trig for the display transformation
%
%
%store the user-specified angles for possible future use
\pgfmathsetmacro{\tdplotmaintheta}{#1}% <------ changed
\pgfmathsetmacro{\tdplotmainphi}{#2}% <------- changed
%
%
\tdplotcalctransformmainscreen
%
%now here is where the output is performed
\tikzset{tdplot_main_coords/.style={x={(\raarot cm,\rbarot cm)},y={(\rabrot cm, \rbbrot cm)},z={(\racrot cm, \rbcrot cm)}}}%
}

\begin{document}
\fboxsep=0pt 
\fbox{%
  %% code from https://tex.stackexchange.com/a/29342/4301
  \tdplotsetmaincoords{70}{115}%
  %\unskip\unskip% <----- HACK which fixes the problem.
  \begin{tikzpicture}[scale=4,tdplot_main_coords]
    \coordinate (O) at (0,0,0);
    \tdplotsetcoord{P}{1.414213}{54.68636}{45}

    \draw[fill=gray!50,fill opacity=0.5] (O) -- (Py) -- (Pyz) -- (Pz) -- cycle;
    \draw[fill=blue,fill opacity=0.5] (O) -- (Px) -- (Pxy) -- (Py) -- cycle;
    \draw[fill=yellow,fill opacity=0.5] (O) -- (Px) -- (Pxz) -- (Pz) -- cycle;
    \draw[fill=green,fill opacity=0.5] (Pz) -- (Pyz) -- (P) -- (Pxz) -- cycle;
    \draw[fill=red,fill opacity=0.5] (Px) -- (Pxy) -- (P) -- (Pxz) -- cycle;
    \draw[fill=magenta,fill opacity=0.5] (Py) -- (Pxy) -- (P) -- (Pyz) -- cycle;

    \DrawBoundingBox
  \end{tikzpicture}%
}%
\end{document}

在此处输入图片描述

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