有没有办法让顶行和底行看起来一样，或者这种偏移总是会发生？
\documentclass[twoside,titlepage,12pt,appendixprefix=true]{scrbook}
\usepackage{tikz}
\usepackage{pgfplots}
\usepackage{pgfmath}
\begin{document}
{
\centering
\begin{tikzpicture}
\tikzset{byte/.append style={rectangle,
draw=black, fill=white,
minimum width=0.75cm,
minimum height=1cm,
anchor=north west,
align=center, font=\scriptsize}}
\tikzset{register/.append style={byte,
minimum height=0.5cm,
fill=blue!20}}
\node [byte,minimum height=1cm] (Address Label) at (0,0) {Addr};
\node [byte, minimum height=0.5cm, minimum width=6cm] (Register Array 0) at (Address Label.north east) {Register Array 0};
\node [byte, minimum height=0.5cm, minimum width=6cm] (Register Array 1) at ($(Register Array 0.north east) + (0.25cm,0)$) {Register Array 1};
\foreach \r in {0,1}
{
\node [byte, minimum height=0.5cm] (Heading R\r D7) at (Register Array \r.south west) {D7};
\foreach \b in {6,...,0}
{
\pgfmathtruncatemacro{\bp}{\b + 1}
\node [byte, minimum height=0.5cm] (Heading R\r D\b) at ($(Heading R\r D\bp.north west) + (0.75cm,0)$) {D\b};
}
}
\foreach \r in {0,1}
{
\node [byte, minimum height=0.5cm] (Heading R\r Da7) at (Heading R\r D7.south west) {D7};
\foreach \b in {6,...,0}
{
\pgfmathtruncatemacro{\bp}{\b + 1}
\node [byte, minimum height=0.5cm] (Heading R\r Da\b) at (Heading R\r Da\bp.north east) {D\b};
}
}
\end{tikzpicture}
}
\end{document}
答案1
对于这种结构，我认为使用matrix节点并在寄存器完成后添加 Addr 节点而不是从它开始会更容易。
\documentclass[twoside,titlepage,12pt,appendixprefix=true]{scrbook}
\usepackage{tikz}
\usetikzlibrary{matrix, positioning, fit}
\begin{document}
\centering
\begin{tikzpicture}[font=\scriptsize,
register/.style={matrix of nodes, font=\scriptsize, nodes in empty cells,
column sep=-\pgflinewidth, row sep=-\pgflinewidth,
nodes={anchor=center, draw, minimum height=.5cm, minimum width=8mm},
row 1/.style={nodes={draw=none}}},
byte/.style={rectangle, draw, minimum width=.75cm, minimum height=1cm, font=\scriptsize},
]
\matrix (RA0) [register]{
&&&&&&&\\D7&D6&D5&D4&D3&D2&D1&D0\\D7&D6&D5&D4&D3&D2&D1&D0\\};
\matrix (RA1) [register, right= 3mm of RA0.east]{
&&&&&&&\\D7&D6&D5&D4&D3&D2&D1&D0\\D7&D6&D5&D4&D3&D2&D1&D0\\};
\node[fit=(RA0-1-1) (RA0-1-8), draw, inner sep=-.5\pgflinewidth, label=center:Register Array 0] {};
\node[fit=(RA1-1-1) (RA1-1-8), draw, inner sep=-.5\pgflinewidth, label=center:Register Array 1] {};
\node [byte, left = -\pgflinewidth of RA0-1-1.north west, anchor=north east] (Address Label) {Addr};
\end{tikzpicture}
\end{document}
答案2
经过进一步搜索，我发现这个答案关于填充和边框。解决方案是outer sep=0在节点样式上进行设置。