# [texhax] Drawing colored pie chart in KOMA-Class scrreprt (preferably without manually installing pgf-pie

Daniel Greenhoe dgreenhoe at gmail.com
Sat Mar 22 21:01:47 CET 2014

Hi Pascal,

You could consider using the pstricks package. There is a pie chart
example on pages "44" and "45" of the PsTricks User's Guide that can
http://www.ctan.org/pkg/pstricks-base

On Fri, Mar 21, 2014 at 5:02 PM, Pascal <pascal.bernhard at belug.de> wrote:
> Hi all,
>
> I would like to insert a colored pie chart into my master's thesis I
> write with LaTeX using the KOMA-class sccreprt.
>
> The purpose is to show the market share of different companies. This as
> a disclaimer, since I have read several times on the web, that it is
> advised against using pie charts. Still I find this the most
> illustrative way to depict the idea of market shares. I am totally happy
> to hear of any suggestions of other solutions that are superior to pie
> charts.
>
> I came across several solutions, although most require the package
> pgf-pie to be installed, which apparently does not come with my TeX-Live
> 2013 (LaTeX, LuaTeX, XeLaTeX) on my Linux. As I mentioned in previous
> post, due to rather uncomfortable time constraints, I would like to
> tinker as few a possible with my TeX-installation.
>
> The first example works
> (http://www.texample.net/tikz/examples/pie-chart/), but I'm totally at a
> loss about how get colors into the pie chart. This basically does the
> trick, I do not aspire to fancy stuff like a drawn out slice, but colors
> I definitively would like to see.
>
>
> \documentclass{article}
>
> \usepackage{calc}
> \usepackage{ifthen}
> \usepackage{tikz}
> \begin{document}
> \newcommand{\slice}[4]{
>   \pgfmathparse{0.5*#1+0.5*#2}
>   \let\midangle\pgfmathresult
>
>   % slice
>   \draw[thick,fill=black!10] (0,0) -- (#1:1) arc (#1:#2:1) -- cycle;
>
>   % outer label
>   \node[label=\midangle:#4] at (\midangle:1) {};
>
>   % inner label
>   \pgfmathparse{min((#2-#1-10)/110*(-0.3),0)}
>   \let\temp\pgfmathresult
>   \pgfmathparse{max(\temp,-0.5) + 0.8}
>   \let\innerpos\pgfmathresult
>   \node at (\midangle:\innerpos) {#3};
> }
>
> \begin{tikzpicture}[scale=3]
>
> \newcounter{a}
> \newcounter{b}
> \foreach \p/\t in {20/type A, 4/type B, 11/type C,
>                    49/type D, 16/other}
>   {
>     \setcounter{a}{\value{b}}
>     \slice{\thea/100*360}
>           {\theb/100*360}
>           {\p\%}{\t}
>   }
>
> \end{tikzpicture}
>
> \end{document}
>
> I should mention that in my case the pie chart is supposed to show that
> the markets is carved up by two companies, one having a 69 % market
> share, the other 29 %, which leaves 2 % for various other tiny firms.
> I'm not sure whether I could modify the example above quite easily to
> fit my needs, so any help here would also be higly appreciated.
>
>
> Thanks in advance for you kind help,
>
> Pascal
>
>
>
>
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