Drawing a pie chart

Pie charts are famous for showing proportions. Their main characteristic is that all items usually sum up to 100%. They are displayed as segments of a disc.

How to do it...

We will use the pgf-pie package, which builds on TikZ and is specialized in generating pie charts. Follow these steps:

1. Start with a document class:

   \documentclass{article}

2. Load the pgf-pie package:

   \usepackage{pgf-pie}

3. Begin the document:

   \begin{document}

4. Begin a TikZ picture, which will be the container for the pie chart:

   \begin{tikzpicture}

5. Draw the pie chart using this command:

    \pie [rotate = 180]
       {62/\TeX\ Live and Mac\TeX,
        32/MiK\TeX\ and Pro\TeX t, 6/Other \TeX}

6. End the TikZ picture and the whole document:

   \end{tikzpicture}
   \end{document}

7. Compile, and take a look at the output:

Figure 6.11 – A pie chart

How it works...

\pie is the only command of the pgf-pie...