# Table with rounded corners?

This table I can create with this code:

\begin{tabular}{|l|l|}
\hline
\multicolumn{2}{|c|}{Team sheet} \\
\hline
GK & Paul Robinson \\
DC & Michael Duberry \\
DC & Dominic Matteo \\
RB & Didier Domi \\
MC & David Batty \\
MC & Eirik Bakke \\
MC & Jody Morris \\
FW & Jamie McMaster \\
ST & Alan Smith \\
ST & Mark Viduka \\
\hline
\end{tabular}


But is there a possibility to use rounded corners? I'm talking about the 4 main corners and not the corners of each cell.

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You can use a TikZ node with inner sep=0pt that holds the table, and then draw a rectangle around it.

Update: You can enclose this TikZ/tabular construct in a table environment to add a table caption and label to it.

\documentclass{article}
\usepackage{tikz}
\usepackage[bf]{caption}

\begin{document}

\begin{table}
\caption{A table with rounded corners}
\centering
\begin{tikzpicture}
\node (table) [inner sep=0pt] {
\begin{tabular}{l|l}
\multicolumn{2}{c}{Team sheet} \\
\hline
GK & Paul Robinson \\
DC & Michael Duberry \\
DC & Dominic Matteo \\
RB & Didier Domi \\
MC & David Batty \\
MC & Eirik Bakke \\
MC & Jody Morris \\
FW & Jamie McMaster \\
ST & Alan Smith \\
ST & Mark Viduka \\
\end{tabular}
};
\draw [rounded corners=.5em] (table.north west) rectangle (table.south east);
\end{tikzpicture}
\label{tab1}
\end{table}

Table~\ref{tab1} can be referenced like any other.
\end{document}


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Oh wow, what a staccato of TikZ solutions here. Interesting to see the variation in the details of the approaches, though. – Jake Feb 4 '11 at 10:12
But yours is the simplest. So +1 for that. – Thorsten Donig Feb 4 '11 at 10:18
@Jake Thanks that works, but were can i put the label and caption? – RoflcoptrException Feb 7 '11 at 21:41
@Roflcoptr: You just enclose the whole stuff in a table environment, like you would with a normal table. I've edited my answer accordingly. – Jake Feb 7 '11 at 22:00
Jake thanks a lot! – RoflcoptrException Feb 7 '11 at 22:02

All (I think?) the previous solutions don't work all that well in combination with coloured cell backgrounds: the backgrounds will stick out over the prettily rounded corners.

The solution is to apply clipping. And the difficulty with that is that the clipping path needs to be set before the table is drawn. A.f.a.I.k., the only way of achieving this is saving the whole table into a box first, then setting the clipping path accordingly. Just adding clip to the TikZ node didn't do it for me at least.

Since this amounts to quite a bit of boilerplate around the table, you could put the whole thing into an environment, and use the environ package to capture the table content conveniently.

\documentclass{article}
\usepackage[dvipsnames,table]{xcolor}
\usepackage{array}
\usepackage{environ}
\usepackage{tikz}

\newsavebox{\tablebox}
\definecolor{tablecolor}{named}{ForestGreen}

\NewEnviron{rndtable}[1]{%
\rowcolors{2}{tablecolor!20}{tablecolor!40}%
\savebox{\tablebox}{%
\begin{tabular}{#1}%
\BODY%
\end{tabular}}%
\begin{tikzpicture}
\begin{scope}
\clip[rounded corners=1ex] (0,-\dp\tablebox) -- (\wd\tablebox,-\dp\tablebox) -- (\wd\tablebox,\ht\tablebox) -- (0,\ht\tablebox) -- cycle;
\node at (0,-\dp\tablebox) [anchor=south west,inner sep=0pt]{\usebox{\tablebox}};
\end{scope}
\draw[rounded corners=1ex] (0,-\dp\tablebox) -- (\wd\tablebox,-\dp\tablebox) -- (\wd\tablebox,\ht\tablebox) -- (0,\ht\tablebox) -- cycle;
\end{tikzpicture}
}

\begin{document}

\begin{rndtable}{l|l}
\multicolumn{2}{c}{\cellcolor{tablecolor}\color{white} Team sheet} \\ \hline
GK & Paul Robinson \\
DC & Michael Duberry \\
DC & Dominic Matteo \\
RB & Didier Domi \\
MC & David Batty \\
MC & Eirik Bakke \\
MC & Jody Morris \\
FW & Jamie McMaster \\
ST & Alan Smith \\
ST & Mark Viduka \\
\end{rndtable}

\end{document}


Looks like this:

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– percusse Apr 28 '14 at 14:01
@percusse ah, a TikZ matrix, not bad! Maybe mine is more convenient if you already have your table code with all the conventional colortbl/array/multicolumn markup? – mabartibin Apr 28 '14 at 14:12
Wow! @mabartibin that is good. Just what I've been looking for. – BlackMagic Oct 25 '15 at 3:48

You could do this by putting the table into a tikZ node and framing that node with a rectangle that has rounded corners. See code below for some inspiration.

\documentclass[11pt,a4paper]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{tikz}
\usetikzlibrary{calc}

\begin{document}
\begin{tikzpicture}
\node (tbl) {%
\begin{tabular}{l|l}
\multicolumn{2}{c}{Team sheet} \\ \hline
GK & Paul Robinson \\
DC & Michael Duberry \\
DC & Dominic Matteo \\
RB & Didier Domi \\
MC & David Batty \\
MC & Eirik Bakke \\
MC & Jody Morris \\
FW & Jamie McMaster \\
ST & Alan Smith \\
ST & Mark Viduka \\
\end{tabular}
};
\draw[rounded corners] ($(tbl.north west)+(0.14,-0.14)$) rectangle ($(tbl.south east)+(-0.14,0.14)$);
\end{tikzpicture}
\end{document}


-

you can do it with tikz fit library

\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{fit}
\begin{document}

\begin{tikzpicture}
\node[inner sep=0pt] (tab){%
\begin{tabular}{l|l}
\multicolumn{2}{c}{Team sheet} \\
\hline
GK & Paul Robinson \\
DC & Michael Duberry \\
DC & Dominic Matteo \\
RB & Didier Domi \\
MC & David Batty \\
MC & Eirik Bakke \\
MC & Jody Morris \\
FW & Jamie McMaster \\
ST & Alan Smith \\
ST & Mark Viduka \\
\end{tabular}
};
\node[draw=red, inner sep=0pt, rounded corners=3pt, line width=2pt,
fit=(tab.north west) (tab.north east) (tab.south east) (tab.south west)] {};
\end{tikzpicture}

\end{document}


-
about 30sec too late :) and a slightly different approach – Martin H Feb 4 '11 at 10:06
Hmm. I always forget this inner sep option. – Thorsten Donig Feb 4 '11 at 10:19
AFAIK you can just say fit=(tab) here. TikZ then automatically takes the (tab.north west) (tab.north east) (tab.south east) (tab.south west) coordinates. – Martin Scharrer Feb 4 '11 at 10:23

tcolorbox includes options tabularx and tabularx* which can draw framed tables with rounded corners.

The main problem will be to decide table width. By default all tcolorboxes use \linewidth as default horizontal box size liketabularx and tabularx*. Therefore tables narrower than \linewidth need to use a manually calculated width.

An example:

\documentclass{article}
\usepackage{array,tabularx}
\usepackage[table]{xcolor}
\usepackage[most]{tcolorbox}
\usepackage[bf]{caption}

\begin{document}

\begin{table}
\caption{A table with rounded corners}
\centering
\rowcolors{1}{black!30}{white}
\begin{tcolorbox}[enhanced, width=.5\linewidth, tabularx={>{\centering\arraybackslash}l|>{\centering\arraybackslash}X}, title={Team sheet}]
GK & Paul Robinson \\
DC & Michael Duberry \\
DC & Dominic Matteo \\
RB & Didier Domi \\
MC & David Batty \\
MC & Eirik Bakke \\
MC & Jody Morris \\
FW & Jamie McMaster \\
ST & Alan Smith \\
ST & Mark Viduka \\
\end{tcolorbox}
\label{tab1}
\end{table}

Table~\ref{tab1} can be referenced like any other.
\end{document}


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