How to fill a tabular box with a tikz node and center h/v the text?

Question

How to fill a tabular box with a tikz node and center h/v the text ?

I don't want to use colortbl package in this case.

\documentclass[a4paper]{article}

\usepackage{array,tabularx,tikz,ragged2e,siunitx}
\begin{document}

{\renewcommand\tabularxcolumn[1]{m{#1}}
\renewcommand{\arraystretch}{1.3}
\begin{tabularx}{\linewidth}{%
    |X|*{3}{>{\Centering}m{2cm}|}}\hline
Entourer la ou les bonne(s) reponse(s)
&\tikz[baseline,overlay]
    \node[fill=blue!15,minimum height=20pt,minimum width=2cm+2\tabcolsep] (A) {a};
&b&p\\\hline
\end{tabularx}}

\end{document}

Zarko · Answer 1 · 2018-02-14T06:24:37.670

3

i suspect that you looking for this:

for this you not need magic with tikz:

\documentclass[a4paper]{article}
\usepackage{array,tabularx}%reorganized loading of package
\renewcommand\tabularxcolumn[1]{m{#1}} % added
\usepackage{ragged2e}
%\usepackage{tikz}      % is not used in mwe
%\usepackage{siunitx}   % is not used in mwe
%
\usepackage[table]{xcolor}% new package, for coloring table

\begin{document}
\renewcommand{\arraystretch}{1.3}
\begin{tabularx}{\linewidth}{|X|*{3}{>{\Centering}m{2cm}|}}
    \hline
Entourer la ou les bonne(s) reponse(s)
    & \cellcolor{blue!15}{a} & b & p    \\
    \hline
\end{tabularx}
\end{document}

addendum (edited): from discussion in comments below *and from your follow-up question * i conclude, that you actually like to have solution similar to first example in my answer as i provide on that (follows-up) question :

*which enable your further changes of node shape as you mentioned in comment below and further elaborate in your follow-up question:

\documentclass[12pt]{article}
\usepackage{tabularx}
\renewcommand\tabularxcolumn[1]{m{#1}}
\usepackage{ragged2e}
\usepackage{tikz}

\newcommand{\DC}[1]{%
\begin{tikzpicture}[baseline=(current bounding box.base)]
    \node[minimum width=\dimexpr2cm+2\tabcolsep,
          minimum height=12mm, text depth=0.25ex,
          inner ysep=2mm, outer sep=0pt,
          append after command={
             \pgfextra{\let\LN\tikzlastnode
          \path[fill=blue!15]
            (\LN.south west) -| (\LN.north east) -| cycle;
                      }     },
          font=\bfseries] {#1};
\end{tikzpicture}}

\begin{document}
    \begingroup
\renewcommand{\arraystretch}{1.3}
\begin{tabularx}{\linewidth}{%
    |>{\raggedright}X | *{3}{@{}>{\Centering}m{\dimexpr2cm+2\tabcolsep}@{}|}
                            }
    \hline
Entourer la ou les bonne(s) reponse(s)
    & \DC{a}   &    b   &   c    \\
    \hline
\end{tabularx}
    \endgroup
\end{document}

edited Feb 14 '18 at 06:24

answered Feb 13 '18 at 16:59

Zarko

296,517

Thank you. But I want to use a node to round its corners after. – Tarass Feb 13 '18 at 17:02
@Tarass, well, than my answer is not for you (you question is not clear at all, sorry) . before i will delete it, please see https://wiert.me/2014/04/03/andre-vatter-google-wie-tabellen-eigentlich-aussehen-sollten-%EF%BB%BF/ – Zarko Feb 13 '18 at 17:06
I thank you for your concern. fill a tabular box with a tikz node. Tell me I to be more specific : fill -- full place is taken, tabular box -- it's clear, and tikz node also. I know that in anglo-saxon tradition there is not much line, and I appriceate that, but in France and in school, people are used to square boxes ;-) – Tarass Feb 13 '18 at 17:12
It's for fun, I don't really need to have this top rounded box, but as they exist in one book I am reading and one see them ofen, I ask my self, could it be done in Latex. I made a mwe and I ask my self where is stored the height of a tabular row ? – Tarass Feb 13 '18 at 17:28
Btw, filling a tabular box with a node could be usefull in another case. – Tarass Feb 13 '18 at 17:29
I accpeted mamot's answer. It is closer to tabular and tikz together. Thank's anyway. – Tarass Feb 13 '18 at 19:27
Do not ! I agree with the simple solution, and I maybe (certainly) never will use this. But I still try to make it : https://tex.stackexchange.com/questions/415187/how-to-guess-and-use-the-height-of-a-tabular-row – Tarass Feb 13 '18 at 20:16
@Tarass, i edit my answer. now i consider your follow-up question https://tex.stackexchange.com/questions/415187/how-to-guess-and-use-the-height-of-a-tabular-row. now all is better clear to me :-) – Zarko Feb 14 '18 at 06:27

score 1 · Accepted Answer · 2018-02-13T18:36:07.130

I am not sure if I understand your question, but if you wish to align a vertically with b and c, consider

\documentclass[a4paper]{article}

\usepackage{array,tabularx,tikz,ragged2e,siunitx}
\begin{document}

{\renewcommand\tabularxcolumn[1]{m{#1}}
\renewcommand{\arraystretch}{1.3}
\begin{tabularx}{\linewidth}{%
    |X|*{3}{>{\Centering}m{2cm}|}}\hline
Entourer la ou les bonne(s) reponse(s)
&\tikz[baseline=(A.base),overlay]
    \node[fill=blue!15,minimum height=20pt,minimum width=2cm+2\tabcolsep] (A) {a};
&b&p\\\hline
\end{tabularx}}

\end{document}

UPDATE: OK, I see that @Zarko already gave you what you wanted. For fun, I followed a bit your original approach, and this is where I got:

\documentclass[a4paper]{article}

\usepackage{array,tabularx,tikz,ragged2e,siunitx}
\usetikzlibrary{calc}
\newcommand{\TikzStrut}[1]{\tikz[overlay,remember picture]{\node(#1){\strut};}}
\makeatletter
\newcommand{\RowHeight}{% see e.g. https://tex.stackexchange.com/a/84536/121799
\def\tmp{\dimexpr\arraystretch\ht\strutbox+\arraystretch\ht\strutbox+\arraystretch\dp\@arstrutbox}\relax
\xdef\myrowheight{\the\tmp}\relax
}
\makeatother
\begin{document}

{\renewcommand\tabularxcolumn[1]{m{#1}}
\renewcommand{\arraystretch}{1.3}
\begin{tabularx}{\linewidth}{%
    |X|*{3}{>{\Centering}m{2cm}|}}\hline
Entourer la ou les bonne(s) reponse(s)\RowHeight
&\tikz[baseline=(A.base),overlay,remember picture]{
    \node[fill=blue!15,minimum height=\myrowheight,minimum width=2cm+2\tabcolsep] (A) 
    {a};}
&b&p\\\hline
\end{tabularx}}

\end{document}

It does compute the height of the row correctly (I think) but only after I used the fact that there is a row with two lines. And also the vertical alignment is not perfect. I'm just posting that so that it can be completed if needed later.

It is good start, but real problem is to fill vertically the box with the node, ie I want it full blue. I don't know how fetch the row height. — Tarass, Feb 13 '18 at 17:00
I prefer your approach. What is remember picture for in this case ? Don't see the difference with or without. The node still a bit vertically low. — Tarass, Feb 13 '18 at 19:25
@Tarass The remember picture is an artifact of an attempt that ended in Nirvana. — , Feb 13 '18 at 19:40
@marmot, you also should show, that node in cell has rounded corners (as op told me in comment to my solution)... — Zarko, Feb 13 '18 at 19:44
@Zarko Luckily, you already explained that to him. ;-) I stressed that I posted this just for fun and that there are severe problems with the current version of my code (as opposed to yours). I'd only care about such details if I were to master the bigger challenges, which I do not (yet). — , Feb 13 '18 at 19:48

How to fill a tabular box with a tikz node and center h/v the text?

2 Answers2