Vjylku

I want to draw a node to be filled with a table containing data, and it should have (three) differently colored adjacent borders around it. Couldn't find anything in the PGF manual, on the Net, nor on this forum, so I came up with this MWE...

Nesting three tikzpicture environments feels like a BIG amateuristic kludge to me, and if not, how do I get rid of the white space in between the borders?

documentclass[pdftex,dutch]{article}

usepackage{babel}

usepackage{tikz}



begin{document}



definecolor{lichtgrijs}{RGB}{232,232,232}

definecolor{DE.rood}{RGB}{222,0,0}

definecolor{DE.geel}{RGB}{255,207,0}



begin{tikzpicture}

node[rectangle,line width=0.5mm,draw=black] at (0,0)

{begin{tikzpicture}

 node[rectangle,line width=0.5mm,draw=DE.rood] at (0,0)

 {begin{tikzpicture}

  node[rectangle,line width=0.5mm,draw=DE.geel,fill=lichtgrijs] at (0,0) {Vliegtuig};

  end{tikzpicture}};

 end{tikzpicture}};

end{tikzpicture}



end{document}

Like this?

documentclass[dutch]{article}

usepackage{babel}

usepackage{tikz}

usetikzlibrary{fit}



definecolor{lichtgrijs}{RGB}{232,232,232}

definecolor{DE.rood}{RGB}{222,0,0} % Rood in Duitse vlag

definecolor{DE.geel}{RGB}{255,207,0} % Geel in Duitse vlag



begin{document}

    begin{tikzpicture}[

box/.style = {draw=#1, line width=0.5mm,inner sep=0.25mm}

                        ]

node (n1) [box=DE.geel,

            fill=lichtgrijs, inner sep=2mm] at (0,0) {Vliegtuig};

node (n2) [box=DE.rood, fit=(n1)] {};

node (n3) [box=black,   fit=(n2)] {};

    end{tikzpicture}

end{document}

Some Notes:

• never nest tikzpicture in tikzpicture, which may raise unexpected side effects;


• the fit library of tikz is used to get what you want;


• you can define node style, which merges all nodes in one, but I'd like first to know whether the illustrated result is what you're looking for :-)

addendum:
here is a three-color node variation. In particular, append after command= option in a node style is used for the middle and the outer colors:

documentclass[dutch]{article}

usepackage{babel}

usepackage{tikz}

usetikzlibrary{fit}



definecolor{lichtgrijs}{RGB}{232,232,232}

definecolor{DE.rood}{RGB}{222,0,0} % Rood in Duitse vlag

definecolor{DE.geel}{RGB}{255,207,0} % Geel in Duitse vlag



begin{document}



    begin{tikzpicture}[

tcb/.style = {% tree color box

              draw=DE.geel, fill=lichtgrijs,

              line width=0.5mm,inner sep=2mm,

              append after command={pgfextra{letLNtikzlastnode

                    node [draw=DE.rood, line width=0.5mm,

                           inner sep=0.25mm,fit=(LN)] {};

                    node [draw, line width=0.5mm,

                           inner sep=0.75mm,fit=(LN)] {};

              }}}

                        ]

node (n1) [tcb] {Vliegtuig};

    end{tikzpicture}

end{document}

The result is the same as before.

Just for fun:

documentclass{standalone}% to avoid cropping

usepackage{babel}% not needed for MWE

usepackage{tikz}

usetikzlibrary{calc}



definecolor{lichtgrijs}{RGB}{232,232,232}

definecolor{DE.rood}{RGB}{222,0,0}

definecolor{DE.geel}{RGB}{255,207,0}



begin{document}

begin{tikzpicture}

begin{scope}[line width=0.5mm]

  node[draw=black,inner sep = 1.5mm] (n1) at (0,0) {Vliegtuig};

  draw[DE.rood] ($(n1.south west)+(0.75mm,0.75mm)$) rectangle ($(n1.north east)+(-0.75mm,-0.75mm)$);

  draw[DE.geel] ($(n1.south west)+(1.25mm,1.25mm)$) rectangle ($(n1.north east)+(-1.25mm,-1.25mm)$);

end{scope}

end{tikzpicture}

end{document}

Without TikZ, only colorboxes:

documentclass[pdftex,dutch]{article}

usepackage{babel}

usepackage{xcolor}



definecolor{lichtgrijs}{RGB}{232,232,232}

definecolor{DE.rood}{RGB}{222,0,0}

definecolor{DE.geel}{RGB}{255,207,0}



begin{document}



colorbox{black}{%

colorbox{DE.rood}{%

colorbox{DE.geel}{%

colorbox{lichtgrijs}{Vliegtuig}}}}



end{document}

You do not need a library for that, and you can make things much more automatic by just supplying the list of colors. Then it boils down to saying

node[inner sep=8pt,line width=2pt,multicolor rectangle={DE.rood,DE.geel}] {Vliegtuig};

This strategy can be applied to other node shapes, too, if needed.

Here is the code.

documentclass[pdftex,dutch]{article}

usepackage{babel}

usepackage{tikz}



begin{document}



definecolor{lichtgrijs}{RGB}{232,232,232}

definecolor{DE.rood}{RGB}{222,0,0}

definecolor{DE.geel}{RGB}{255,207,0}



begin{tikzpicture}[multicolor rectangle/.style={draw,path picture={

foreach CPP [count=YPP] in {#1}

{draw[CPP] ([xshift=YPP*pgflinewidth,yshift=YPP*pgflinewidth]path picture bounding box.south west)

rectangle ([xshift=-YPP*pgflinewidth,yshift=-YPP*pgflinewidth]path picture bounding box.north east); }}}]

node[inner sep=8pt,line width=2pt,multicolor rectangle={DE.rood,DE.geel}] {Vliegtuig};

end{tikzpicture}



end{document}

In case it bugs you that you have to set the inner sep by hand, this can be taken care of at the expense of a slightly longer code.