Gostaria de inserir um gráfico de pizza simples em uma apresentação do Beamer. Como eu poderia fazer isso no seguinte MWE?
\documentclass{beamer}
\usepackage[frenchb]{babel}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{framed,color}
\begin{document}
\maketitle
\section{A title}
\begin{frame}
\end{frame}
\end{document}
Responder1
Certa vez, ajustei as respostas relacionadas aessa questãopara obter esse tipo de gráfico de pizza.
Requer um pouco de ajuste, mas agora você sabe que é possível obter algo entre a imagem acima e as incluídas nas respostas deaquela questão:
"Meu" código modificado:
\documentclass{beamer}
\usepackage{pgf, tikz}
\usetikzlibrary{arrows,fadings}
\pgfkeys{%
/piechartthreed/.cd,
scale/.code = {\def\piechartthreedscale{#1}},
mix color/.code = {\def\piechartthreedmixcolor{#1}},
mix rate low/.code = {\def\piechartthreedmixratelow{#1}},
mix rate high/.code = {\def\piechartthreedmixratehigh{#1}},
background color/.code = {\def\piechartthreedbackcolor{#1}},
inner/.code = {\def\piechartthreedinner{#1}},
outer/.code = {\def\piechartthreedouter{#1}},
mid/.code = {\def\piechartthreedmid{#1}},
height/.code = {\def\piechartthreedheight{#1}},
name/.code = {\def\piechartthreedname{#1}}}
\newcommand\piechartthreed[2][]{%
\pgfkeys{/piechartthreed/.cd,
scale = 1,
mix color = gray,
mix rate low = 25,
mix rate high = 75,
background color = white,
inner = 0.0cm,
outer = 1cm,
mid = .66cm, %Optimally set to (inner+outer)/2
height = 1mm, %Optimally set to (inner+outer)/2
name = pc}
\pgfqkeys{/piechartthreed}{#1}
\begin{scope}[scale=\piechartthreedscale]
\begin{scope}[xscale=5,yscale=3]
% SHADOW
\path[preaction={fill=black,opacity=.8,
path fading=circle with fuzzy edge 20 percent,
transform canvas={yshift=-5*\piechartthreedheight*\piechartthreedscale}}] (0,0) circle (\piechartthreedouter);
\fill[gray](0,0) circle (\piechartthreedinner);
\path[preaction={fill=\piechartthreedbackcolor,opacity=.8,
path fading=circle with fuzzy edge 20 percent,
transform canvas={yshift=-3.5*\piechartthreedheight*\piechartthreedscale}}] (0,0) circle (\piechartthreedinner);
% END SHADOW
\pgfmathsetmacro\totan{0}
\global\let\totan\totan
\pgfmathsetmacro\bottoman{180} \global\let\bottoman\bottoman
\pgfmathsetmacro\toptoman{0} \global\let\toptoman\toptoman
\begin{scope}[draw=black,thin]
\foreach \an/\col [count=\xi] in {#2}{%
\def\space{ }
\coordinate (\piechartthreedname\space\xi) at (\totan+\an/2:0\piechartthreedmid);
\ifdim 180pt>\totan pt
\ifdim 0pt=\toptoman pt
\shadedraw[left color=\col!\piechartthreedmixratehigh!\piechartthreedmixcolor,
right color=\col!\piechartthreedmixratelow!\piechartthreedmixcolor,
draw=black,very thin] (0:\piechartthreedinner) -- ++(0,-\piechartthreedheight) arc (0:\totan+\an:\piechartthreedinner)
-- ++(0,\piechartthreedheight) arc (\totan+\an:0:\piechartthreedinner);
\pgfmathsetmacro\toptoman{180}
\global\let\toptoman\toptoman
\else
\shadedraw[left color=\col!\piechartthreedmixratehigh!\piechartthreedmixcolor,
right color=\col!\piechartthreedmixratelow!\piechartthreedmixcolor,
draw=black,very thin](\totan:\piechartthreedinner)-- ++(0,-\piechartthreedheight) arc(\totan:\totan+\an:\piechartthreedinner)
-- ++(0,\piechartthreedheight) arc (\totan+\an:\totan:\piechartthreedinner);
\fi
\fi
\fill[\col!\piechartthreedmixratehigh!gray,draw=black] (\totan:\piechartthreedinner)--(\totan:\piechartthreedouter) arc(\totan:\totan+\an:\piechartthreedouter)--(\totan+\an:\piechartthreedinner) arc(\totan+\an:\totan:\piechartthreedinner);
\pgfmathsetmacro\finan{\totan+\an}
\ifdim 180pt<\finan pt
\ifdim 180pt=\bottoman pt
\shadedraw[left color=\col!\piechartthreedmixratehigh!\piechartthreedmixcolor,
right color=\col!\piechartthreedmixratelow!\piechartthreedmixcolor,
draw=black,very thin] (180:\piechartthreedouter) -- ++(0,-\piechartthreedheight) arc (180:\totan+\an:\piechartthreedouter)
-- ++(0,\piechartthreedheight) arc (\totan+\an:180:\piechartthreedouter);
\pgfmathsetmacro\bottoman{0}
\global\let\bottoman\bottoman
\else
\shadedraw[left color=\col!\piechartthreedmixratehigh!\piechartthreedmixcolor,
right color=\col!\piechartthreedmixratelow!\piechartthreedmixcolor,
draw=black,very thin](\totan:\piechartthreedouter)-- ++(0,-\piechartthreedheight) arc(\totan:\totan+\an:\piechartthreedouter)
-- ++(0,\piechartthreedheight) arc(\totan+\an:\totan:\piechartthreedouter);
\fi
\fi
\pgfmathsetmacro\totan{\totan+\an} \global\let\totan\totan
}
\end{scope}
% \draw[thin,black](0,0) circle (0.5cm);
\end{scope}
\end{scope}
}
\begin{document}
\begin{frame}{beautiful pie test}
\begin{tikzpicture}
\piechartthreed[scale=0.8,
background color=white,
mix color= darkgray]
{97/blue,42/orange,102/red,34/purple,44/green,41/brown}
\foreach \i in {1,...,6} { \fill[darkgray] (pc \i) circle (.5mm);}
\draw[darkgray] (pc 1) -- ++(.575,.575) -- ++(5,0) coordinate (s1) node[anchor=south east] {{\color{blue!50!gray}line 1 (27\%)}};
\draw[darkgray] (pc 2) -- ++(0.375,-0.375) coordinate (tmp2) -- (tmp2 -| s1) node[anchor=south east] {{\color{orange!50!gray}line 2 (12\%)}};
\draw[darkgray] (pc 3) -- ++(.6,.6) coordinate (s2) -- (s2 -| s1) node[anchor=south east] {{\color{red!50!gray}line 3 (28\%)}};
\draw[darkgray] (pc 6) -- ++(.125,.125) coordinate (s5) --(s5 -| s1) node[anchor=south east] {{\color{brown!50!gray}line 4 (12\%)}};
\draw[darkgray] (pc 5) -- ++(.25,.25) coordinate (s4) --(s4 -| s1) node[anchor=south east] {{\color{green!50!gray}line 5 (11\%)}};
\draw[darkgray] (pc 4) -- ++(.5,-.5) coordinate (s3) -- (s3 -| s1) node[anchor=south east] {{\color{purple!50!gray}line 6 (10\%)}};
\end{tikzpicture}
\end{frame}
\end{document}