FourSetVennTeX/example.tex at master · adelman/FourSetVennTeX · GitHub

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\documentclass[12pt]{article}

% Needed for the input of venn
\usepackage{tikz}
\usetikzlibrary{positioning,shapes.geometric,calc}

% For drawing: This defines the size and position of the ellipses
\def\firstellip{(1.6, 0) ellipse [x radius=3cm, y radius=1.5cm, rotate=50]}
\def\secondellip{(0.3, 1cm) ellipse [x radius=3cm, y radius=1.5cm, rotate=50]}
\def\thirdellip{(-1.6, 0) ellipse [x radius=3cm, y radius=1.5cm, rotate=-50]}
\def\fourthellip{(-0.3, 1cm) ellipse [x radius=3cm, y radius=1.5cm, rotate=-50]}
\def\bounding{(-5,-3) rectangle (5,4)}

\begin{document}

  % contains individual pieces
  \input{venn}

  \begin{tikzpicture}[remember picture]
    \tikzset{venn1}
    \tikzset{venn2}
    \tikzset{venn4}
    \tikzset{venn8}
    \tikzset{venn12}
    \tikzset{venn14}
    \tikzset{vennoutlines}
  \end{tikzpicture}

\end{document}