tabularray
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Center-aligned hline and vline segments of different widths
At present, line segments of different widths in a hline/vline aligns at the bottom/left. It would be better to set center alignment for them. The following example demonstrates the planned result using nicematrix
package:
\documentclass{article}
\usepackage{tabularray,nicematrix,tikz}
\begin{document}
\section{Current Result}
\begin{tblr}{
hlines = {1}{1pt}, hlines = {2}{2pt}, hlines = {3}{3pt},
}
Alpha & Beta & Gamma \\
Epsilon & Zeta & Eta \\
Iota & Kappa & Lambda \\
\end{tblr}
\qquad
\begin{tblr}{
vlines = {1}{1pt}, vlines = {2}{2pt}, vlines = {3}{3pt},
}
Alpha & Beta & Gamma \\
Epsilon & Zeta & Eta \\
Iota & Kappa & Lambda \\
\end{tblr}
\section{Future Result}
\renewcommand\arraystretch{1.5}
\begin{NiceTabular}{lll}
Alpha & Beta & Gamma \\
Epsilon & Zeta & Eta \\
Iota & Kappa & Lambda \\
\CodeAfter
\begin{tikzpicture}
\foreach \i in {1,2,3,4} {
\draw[line width=1pt] (\i-|1) -- (\i-|2);
\draw[line width=2pt] (\i-|2) -- (\i-|3);
\draw[line width=3pt] (\i-|3) -- (\i-|4);
}
\end{tikzpicture}
\end{NiceTabular}
\qquad
\begin{NiceTabular}{lll}
Alpha & Beta & Gamma \\
Epsilon & Zeta & Eta \\
Iota & Kappa & Lambda \\
\CodeAfter
\begin{tikzpicture}
\foreach \i in {1,2,3,4} {
\draw[line width=1pt] (1-|\i) -- (2-|\i);
\draw[line width=2pt] (2-|\i) -- (3-|\i);
\draw[line width=3pt] (3-|\i) -- (4-|\i);
}
\end{tikzpicture}
\end{NiceTabular}
\end{document}
This change is a prerequisite for the smash
option (issue #215) and tikz
library (issue #29).