first version

3 files changed, 209 insertions, 0 deletions

diff --git a/dev/demo/pie.tex b/dev/demo/pie.tex
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+\pie{20/, 4/, 11/, 49/, 16/}
\ No newline at end of file
diff --git a/dev/pgf-pie-manual.tex b/dev/pgf-pie-manual.tex
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+% Manual of pgf-pie.sty, a convenient set of macros for drawing pie
+% chart. Written by Xu Yuan <xuyuan.cn@gmail.com> This file is part of
+% pgf-pie you may get it at http://code.google.com/p/pgf-pie/
+
+\documentclass{article}
+\usepackage[margin=12mm]{geometry}
+\usepackage{hyperref}
+
+\usepackage{pgf-pie}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\usepackage{listings}
+\usepackage{color}
+\definecolor{listinggray}{gray}{0.92}
+\lstset{ %
+language=[LaTeX]TeX,
+breaklines=true,
+frame=single,
+% frameround=tttt,
+basicstyle=\footnotesize\ttfamily,
+backgroundcolor=\color{listinggray},
+keywordstyle=\color{blue}
+}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\hypersetup{
+  colorlinks=true,
+  linkcolor=blue,
+  anchorcolor=black,
+  citecolor=olive,
+  filecolor=magenta,
+  menucolor=red,
+  urlcolor=blue
+}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\newcommand{\demo}[2][1]{
+\begin{minipage}{.49\linewidth}
+\centering
+\resizebox{#1\linewidth}{!}{
+\input{demo/#2}
+}
+\end{minipage}
+\hspace{0.01\linewidth}
+\begin{minipage}{.5\linewidth}
+\lstinputlisting{demo/#2}
+\end{minipage}
+}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\newcommand{\example}[1]{
+\resizebox{\linewidth}{!}{
+\input{demo/#1}
+}
+\lstinputlisting{demo/#1}
+}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{document}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\title{Drawing Pie Chart by using \texttt{pgf-pie}}
+\author{\href{mailto:xuyuan.cn@gmail.com}{Yuan Xu}}
+\date{\today{}~(v0.1)}
+\maketitle
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{abstract}
+  \texttt{pgf-pie} is a LaTeX package for drawing pie chart. As stated
+  by its name, it is based on a very popular graphic package
+  \texttt{PGF/TikZ}. This document presents the usage of
+  \texttt{pgf-pie} and collects some pie charts as examples.
+  \texttt{pgf-pie} can be downloaded from
+  \href{http://code.google.com/p/pgf-pie/}{http://code.google.com/p/pgf-pie/}.
+\end{abstract}
+
+\tableofcontents
+
+\section{The Essentials}
+
+
+\section{Examples}
+
+\demo[0.6]{pie}
+
+% \pie{20/, 4/, 11/, 49/, 16/}
+
+% \pie{20/type A, 4/type B, 11/type C, 49/type D, 16/other}
+
+% \pie[explode={0, 0.01, 0},]{20/type A, 4/type B, 11/type C, 49/type D, 16/other}
+
+% \pie[explode={0, 0.01}, colormap=black!10]{20/type A, 4/type B,
+%   11/type C, 49/type D, 16/other}
+
+% \pie{10/, 10/, 10/, 10/, 10/, 10/, 10/, 10/, 10/, 10/ }
+
+% \section{Acknowledgements}
+% Many people contributed to \texttt{pgf-pie} by reporting problems,
+% suggesting various improvements or submitting code. Here is a list of
+% these people:
+% \href{mailto:???}{name}.
+
+\end{document}
+%%% Local Variables: 
+%%% mode: Tex-PDF
+%%% TeX-master: t
+%%% End: 
diff --git a/dev/pgf-pie.sty b/dev/pgf-pie.sty
new file mode 100644
index 0000000..64c01cc
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+++ b/dev/pgf-pie.sty
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+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% Start of pgf-pie.sty
+%
+% Some LaTeX macros for pie chart by using PGF/Tikz package.
+% Home page of project: http://pgf-pie.googlecode.com/
+% Author: Xu Yuan <xuyuan.cn@gmail.com>
+%
+
+\NeedsTeXFormat{LaTeX2e}[1999/12/01]
+\ProvidesPackage{pgf-pie}[2011/10/01 v0.1 Some LaTeX macros for pie
+chart by using PGF/Tikz package.]
+
+\RequirePackage{tikz}
+\usetikzlibrary{shadows}
+
+\newcommand{\pgfpie@slice}[6]{
+  \pgfmathparse{0.5*#1+0.5*#2}
+  \let\midangle\pgfmathresult
+
+  \pgfmathparse{1}
+  \let\radius\pgfmathresult
+  % slice
+  \draw[thick,fill=#6, drop shadow] (\midangle:#5) -- ++(#1:\radius) arc (#1:#2:\radius) -- 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};
+}
+
+\newcounter{a}
+\newcounter{b}
+\newcounter{explodelength}
+\newcounter{colormaplength}
+
+\def\setexplode#1\pgfeov{\def\explode{#1}}
+\pgfkeyslet{/explode/.@cmd}{\setexplode}
+
+\def\setcolormap#1\pgfeov{\def\colormap{#1}}
+\pgfkeyslet{/colormap/.@cmd}{\setcolormap}
+
+\newcommand{\pie}[2][]
+{
+  \pgfkeys{explode=0,
+    colormap={blue!60, cyan!60, yellow!60, orange!60, red!60}}
+  \pgfkeys{#1}
+
+  \def\explodearray{{\explode}}
+  \setcounter{explodelength}{0}
+  \foreach \e in \explode { \addtocounter{explodelength}{1} }
+
+  \setcounter{colormaplength}{0}
+
+    \foreach \c in \colormap {
+    \addtocounter{colormaplength}{1}
+  }
+  
+  \setcounter{b}{0}
+  \begin{tikzpicture}[scale=3,
+% x={(1cm,0cm)}, y={(0cm,0.5cm)}
+]
+
+    \foreach \p/\t [count=\i from 0] in {#2}
+    {
+      \setcounter{a}{\value{b}}
+      \addtocounter{b}{\p}
+
+      % find explode
+      \pgfmathparse{\explodearray[int(mod(\i,\value{explodelength}))]}
+      \let\e\pgfmathresult
+
+      % find color
+      \pgfmathparse{int(mod(\i,\value{colormaplength}))}
+      \let\ci\pgfmathresult
+      \foreach \c [count=\j from 0] in \colormap {
+        \ifnum \j=\ci
+          \xdef\thecolor{\c}
+          \breakforeach
+        \fi
+      }
+
+      \pgfpie@slice{\thea/100*360}
+      {\theb/100*360}
+      {\p\%}{\t}
+      {\e}
+      {\thecolor}
+    }
+
+  \end{tikzpicture}
+}
+
+%%% End of pgf-pie.sty
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+