我正在处理这张图片。它几乎完成了，但出于某种原因，我无法修剪左边距，所以有一些烦人的额外空间。（如果您在新选项卡上打开图像会更容易看到）。它不多，只有几毫米，但我无法摆脱它，它......
使用的 TeX 代码：
\documentclass{standalone}
\usepackage{newtxtext,newtxmath}
\usepackage{pgf,tikz,pgfplots}
\pgfplotsset{compat=1.15}
\usetikzlibrary{arrows}
\usetikzlibrary{calc}
\usetikzlibrary[patterns]
\begin{document}
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\definecolor{qqffff}{rgb}{0,1,1}
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\draw (0.5,8.5) node[anchor=north west] {DC Motor};
\draw (4.4,7.6) node[anchor=north west] {Tuning Mirror};
\draw (1.5,3.1) node[anchor=north west,rotate=-15] {Temp. Control};
\draw (1.3,2.3) node[anchor=north west,rotate=-15] {Current Control};
\draw (2,6.6) node[anchor=north west] {PZT};
\draw (1.2,3.8) node[anchor=north west,rotate=-15] {HR};
\draw (3.8,3.1) node[anchor=north west,rotate=-15] {AR};
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\draw (7.5,6.5) node[anchor=north west] {Power Monitor};
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\draw (0.1,0.8) node[anchor=north west] {Control Input};
\end{tikzpicture}
\end{document}
答案1
正如 Sigur 所建议的，最好的解决方案是将所有内容移至\definecolor...前导码，否则，它们会在您的 TikZ 图片前创建虚假空间。
或者，您可以在%每个 后面放置一个\definecolor...。
确实，写作：
...
\definecolor{wrwrwr}{rgb}{0.3803921568627451,0.3803921568627451,0.3803921568627451}
\definecolor{ffqqqq}{rgb}{1,0,0}
\definecolor{qqffff}{rgb}{0,1,1}
\begin{tikzpicture}[line cap=round,line
...
就像写：
...
\definecolor{wrwrwr}{rgb}{0.3803921568627451,0.3803921568627451,0.3803921568627451} \definecolor{ffqqqq}{rgb}{1,0,0} \definecolor{qqffff}{rgb}{0,1,1} \begin{tikzpicture}[line cap=round,line
...
（请注意每个后面的空格\definecolor...），因为 TeX 将回车符解释为空格。
而写作：
...
\definecolor{wrwrwr}{rgb}{0.3803921568627451,0.3803921568627451,0.3803921568627451}%
\definecolor{ffqqqq}{rgb}{1,0,0}%
\definecolor{qqffff}{rgb}{0,1,1}%
\begin{tikzpicture}[line cap=round,line
...
就像写：
...
\definecolor{wrwrwr}{rgb}{0.3803921568627451,0.3803921568627451,0.3803921568627451}\definecolor{ffqqqq}{rgb}{1,0,0}\definecolor{qqffff}{rgb}{0,1,1}\begin{tikzpicture}[line cap=round,line
...
没有虚假的空间。