消除 tikz 圖形之間的空格

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}

產生

我知道我可以用以下方法消除空白：

\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}

但這需要我手動微調間距，而且似乎容易出錯。是否有一種自動方法來消除圖形之間的空白（水平和垂直）？

Answer 1

您可以使用tabular, 並正確設定參數：

\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

水平間隙由安德魯解釋評論：環境之間以行尾分隔。

由於圖片大於基線跳過，TeX 使用暫存器\lineskip在垂直方向上分隔框：

\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}