TikZ for a set complement

[Art Werschulz]

Hi.

I would like to draw a set complement using TikZ.
The picture would consist of a circle inside a rectangle, the circle
being labelled with $A$. The circle would not be colored, but the
box would be colored.

Suggestions? Thanks.

[Kjell Magne Fauske]

Post by Art Werschulz
Hi.
I would like to draw a set complement using TikZ.
The picture would consist of a circle inside a rectangle, the circle
being labelled with $A$.  The circle would not be colored, but the
box would be colored.
Suggestions?   Thanks.
--
Art Werschulz (8-{)}   "Metaphors be with you."  -- bumper sticker
GCS/M (GAT): d? -p+ c++ l++ u+ P++ e--- m* s n+ h f g+ w+ t+ r-
Phone:   Fordham U. [phone], Columbia U. [phone]

How about this?

%%%
\documentclass{minimal}
\usepackage{tikz}
\begin{document}

\def\setA{(0,0) rectangle (4,4)}
\def\setB{(2,2) circle (1)}
\begin{tikzpicture}
\draw \setA;
\draw \setB node {$A$};
\begin{scope}[even odd rule]
\clip \setA \setB;
\fill[blue!50] \setA;
\end{scope}
\end{tikzpicture}
\end{document}
%%%

A similar example can be found here: http://www.texample.net/tikz/examples/venn-diagram/

- Kjell Magne Fauske

[n***@gmail.com]

Just another option. In this case you must be draw the circle after
the rectangle.

%%%%%%%%%%%%%%%
\documentclass{minimal}
\usepackage{tikz}
\begin{document}

\begin{tikzpicture}
\node[draw,rectangle,fill=blue,minimum size=4cm] (rectangle) {};
\node[draw,circle,fill=white,minimum size=2cm] () at (rectangle)
{$A$};
\end{tikzpicture}

\end{document}
%%%%%%%%%%%%%%

Ignasi