这让我很抓狂。“Job5”和“Job6”文本在垂直方向上比其他文本略高。
我怀疑“内部分离”，但我需要它来适应。
我该如何重新调整文本？
\documentclass{standalone}
\usepackage{tikz}
\usetikzlibrary{fit}
\begin{document}
\begin{tikzpicture}[auto,
singlejob/.style = {rectangle, minimum height = 1cm, minimum width = 2cm, fill=blue!20, thick, outer sep=0pt, inner sep=0pt, align=center, anchor=mid, text centered},
doublejob/.style = {rectangle, minimum height = 1cm, minimum width = 4.1cm, fill=blue!20, thick, inner sep = 0pt, align=center, anchor=mid, text centered}
]
\matrix[column sep=0.1cm, row sep=0.1cm, ampersand replacement=\& ] {
\node[rectangle, minimum height = 1cm, minimum width = 1cm ] { $Resc_1$ };\&
\node[draw, singlejob] {$Job_1$};\& \node[draw, singlejob] {$Job_2$};\&
\node[draw, singlejob] {$Job_3$};\& \node[draw, singlejob] {$Job_4$};\\
\node[rectangle, minimum height = 1cm, minimum width = 1cm ] { $Resc_2$ };\&
\node[singlejob] (j51) {}; \& \node[singlejob] (j52) {}; \&
\node[singlejob] (j61) {}; \& \node[singlejob] (j62) {}; \\
};
\node[draw,doublejob] (outer) [fit=(j51) (j52)] {$Job_5$};
\node[draw,doublejob] (outer) [fit=(j61) (j62)] {$Job_6$};
\end{tikzpicture}
\end{document}
较小的示例（由 Andrew Stacey 添加）。问题似乎与fit库如何扩展其节点有关：
\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{fit}
\begin{document}
\begin{tikzpicture}
\node[draw,inner sep=0pt,fit={(0,0) (1,-2)}] (a) {a};
\node[draw,minimum width=1cm,minimum height=2cm,anchor=north west] (b)
at (1.5,0) {a};
\draw[ultra thick,red] (a.base) -- (b.base);
\end{tikzpicture}
\end{document}
答案1
我不知道这是否是漏洞或特征。fit节点的工作原理是确定节点应位于的中心以包含给定的所有点，然后将其文本框的大小设置为正确的大小，以便生成的节点将包含所有给定的点。问题在于设置文本框的高度和深度。这些必须加起来达到正确的大小，但可以相对彼此进行调整。一旦设置了高度，那么显然深度就是所需的总高度减去设置的高度，因此关键的一行是fit库代码中的以下内容：
/tikz/text height/.expanded=\the\[email protected]\dp\pgfnodeparttextbox,
这表示将框的高度设置为所需高度的一半（\the\pgf@y）减去框深度的一半实际的框（-.5\dp\pgfnodeparttextbox）。测试了几个值后，我发现如果使用以下值，可以得到更好的对齐效果：
/tikz/text height/.expanded=\the\pgf@y+.5\ht\pgfnodeparttextbox
-.5\dp\pgfnodepart文本框，
（这不是一个完全随机的选择，它是通过观察形状如何rectangle计算其锚点而提出的。）
幸运的是，紧接着这些语句，TeX 就会计算键every fit。所以我们可以在这里插入并替换公式。
\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{fit}
\makeatletter
\tikzset{
adjust fit placement/.style={
every fit/.style={
text height/.expanded=\the\pgf@y+.5\ht\pgfnodeparttextbox -.5\dp\pgfnodeparttextbox,
}
}
}
\makeatother
\begin{document}
\begin{tikzpicture}[every node/.style={outer sep=0pt}]
\node[draw,inner sep=0pt,fit={(0,0) (1,-2)}] (a) {a};
\node[draw,minimum width=1cm,minimum height=2cm,anchor=north west] (b) at (1.5,0) {a};
\node[draw] (c) at (3,-1) {a};
\draw[ultra thick,green] (a.center) -- (b.center) -- (c.center);
\draw[ultra thick,red] (a.base) -- (b.base) -- (c.base);
\end{tikzpicture}
\begin{tikzpicture}[every node/.style={outer sep=0pt}]
\node[draw,inner sep=0pt,fit={(0,0) (1,-2)}] (a) {bq};
\node[draw,minimum width=1cm,minimum height=2cm,anchor=north west] (b) at (1.5,0) {bq};
\node[draw] (c) at (3,-1) {bq};
\draw[ultra thick,green] (a.center) -- (b.center) -- (c.center);
\draw[ultra thick,red] (a.base) -- (b.base) -- (c.base);
\end{tikzpicture}
\tikzset{adjust fit placement}
\begin{tikzpicture}[every node/.style={outer sep=0pt}]
\node[draw,inner sep=0pt,fit={(0,0) (1,-2)}] (a) {a};
\node[draw,minimum width=1cm,minimum height=2cm,anchor=north west] (b) at (1.5,0) {a};
\node[draw] (c) at (3,-1) {a};
\draw[ultra thick,green] (a.center) -- (b.center) -- (c.center);
\draw[ultra thick,red] (a.base) -- (b.base) -- (c.base);
\end{tikzpicture}
\begin{tikzpicture}[every node/.style={outer sep=0pt}]
\node[draw,inner sep=0pt,fit={(0,0) (1,-2)}] (a) {bq};
\node[draw,minimum width=1cm,minimum height=2cm,anchor=north west] (b) at (1.5,0) {bq};
\node[draw] (c) at (3,-1) {bq};
\draw[ultra thick,green] (a.center) -- (b.center) -- (c.center);
\draw[ultra thick,red] (a.base) -- (b.base) -- (c.base);
\end{tikzpicture}
\end{document}
附有前后图片：
