# How to fix venn diagram

I would like to make a venn diagram with Tikz, but instead of labeling A, B or C each circle I'd like to give some other names. However, having read the manual I've changed their labels but each new word doesn't fit in each shape.

My code so far is:

\documentclass[12pt,a4paper]{article}
\usepackage[english,greek]{babel}
\usepackage{ucs}
\usepackage[utf8x]{inputenc}
\usepackage{venndiagram}
\begin{document}
\begin{venndiagram3sets}[labelA={υλικά}, labelB={καταναλωτικά}, labelC={διαρκή}, labelABC={ΑΑΑΒΒΒΨΨΦΦΔ}]
\fillACapBCapC
\end{venndiagram3sets}
\end{document}


My diagram I'd like to be like:

How can I change how big a circle can be?

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In the manual there is a radius option that might be of help (beware: I never used that package). Did you have a try with it? –  Claudio Fiandrino Jul 18 '13 at 10:09
You have also to set overlap=... if you set radius= –  egreg Jul 18 '13 at 10:13
@Claudio Fiandrino Just today I've found it, because I wanted to make a diagram like this. In a few minutes I'll upload what I'd like to make. –  giannis Jul 18 '13 at 10:13

Here a quick sketch with only tikz (without venndiagram) - if you dont need any other functionality of the package maybe this does suffice. Removed the greek text as I dont have those packages installed here.

\documentclass[12pt,a4paper]{article}
\usepackage[english]{babel}
\usepackage{ucs}
\usepackage[utf8x]{inputenc}
\usepackage{venndiagram}
\usepackage{tikz}
\begin{document}
\usetikzlibrary{calc}
\begin{tikzpicture}[scale=0.8]
\draw(4,3)circle(5 and 3)node(A){Text A};
\draw(8,6)circle(5 and 3)node(B){Text B};
\draw(10,2.5)circle(5 and 3)node(C){Text C};
\begin{scope}
\clip(4,3)circle(5 and 3);
\clip(8,6)circle(5 and 3);
\clip(10,2.5)circle(5 and 3);
\filldraw[yellow!80](0,0)rectangle(10,10);
\end{scope}
\node at ($0.33*(A)+0.33*(B)+0.33*(C)$){Text M};
\end{tikzpicture}
\end{document}


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