消除 tikz 图形之间的空格

Question

以下 MWE

\documentclass{article}
\usepackage{tikz}
\begin{document}
\noindent{}\begin{tikzpicture}\fill [red] (0,0) rectangle (1,1);\end{tikzpicture}
\begin{tikzpicture}\fill [red] (0,0) rectangle (1,1);\end{tikzpicture}\\
\begin{tikzpicture}\fill [red] (0,0) rectangle (1,1);\end{tikzpicture}
\begin{tikzpicture}\fill [red] (0,0) rectangle (1,1);\end{tikzpicture}
\end{document}

生产

我知道我可以用类似以下的方法消除空白：

\documentclass{article}
\usepackage{tikz}
\begin{document}
\noindent{}\begin{tikzpicture}\fill [red] (0,0) rectangle (1,1);\end{tikzpicture}\hspace*{-0.3em}
\begin{tikzpicture}\fill [red] (0,0) rectangle (1,1);\end{tikzpicture}\\[-1pt]
\begin{tikzpicture}\fill [red] (0,0) rectangle (1,1);\end{tikzpicture}\hspace*{-0.3em}
\begin{tikzpicture}\fill [red] (0,0) rectangle (1,1);\end{tikzpicture}
\end{document}

但这需要我手动微调间距，而且似乎容易出错。有没有一种自动方法可以消除图形之间的空白（水平和垂直）？

Answer 1

您可以使用tabular带有正确设置参数的：

\documentclass{article}
\usepackage{tikz}

\newenvironment{pics}
 {\par\raggedright % maybe \centering
  \setlength\tabcolsep{0pt}\renewcommand{\arraystretch}{0}%
  \begin{tabular}{*{10}c}}
 {\end{tabular}\par}

\begin{document}

\begin{pics}
\begin{tikzpicture}\fill [red] (0,0) rectangle (1,1);\end{tikzpicture} &
\begin{tikzpicture}\fill [red] (0,0) rectangle (1,1);\end{tikzpicture} \\
\begin{tikzpicture}\fill [red] (0,0) rectangle (1,1);\end{tikzpicture} &
\begin{tikzpicture}\fill [red] (0,0) rectangle (1,1);\end{tikzpicture}
\end{pics}

\bigskip

\begin{pics}
\begin{tikzpicture}\fill [red] (0,0) rectangle (1,1);\end{tikzpicture} &
\begin{tikzpicture}\fill [red] (0,0) rectangle (1,1);\end{tikzpicture} &
\begin{tikzpicture}\fill [red] (0,0) rectangle (1,1);\end{tikzpicture} &
\begin{tikzpicture}\fill [red] (0,0) rectangle (1,1);\end{tikzpicture} \\
\begin{tikzpicture}\fill [red] (0,0) rectangle (1,1);\end{tikzpicture} &
\begin{tikzpicture}\fill [red] (0,0) rectangle (1,1);\end{tikzpicture} &
\begin{tikzpicture}\fill [red] (0,0) rectangle (1,1);\end{tikzpicture} &
\begin{tikzpicture}\fill [red] (0,0) rectangle (1,1);\end{tikzpicture} &
\begin{tikzpicture}\fill [red] (0,0) rectangle (1,1);\end{tikzpicture}
\end{pics}

\end{document}

Answer 2

水平差距可以用安德鲁的评论：环境之间的行尾空格。

由于图片大于基线跳过，TeX 使用寄存器\lineskip在垂直方向上分离框：

\documentclass{article}
\usepackage{tikz}
\begin{document}
\noindent
\begin{tikzpicture}\fill [red] (0,0) rectangle (1,1);\end{tikzpicture}%
\begin{tikzpicture}\fill [red] (0,0) rectangle(1,1);\end{tikzpicture}%
\\[-\lineskip]
\begin{tikzpicture}\fill [red] (0,0) rectangle (1,1);\end{tikzpicture}%
\begin{tikzpicture}\fill [red] (0,0) rectangle (1,1);\end{tikzpicture}%
\end{document}