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饼图：颜色问题

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饼图：颜色问题

我很高兴玩彩色饼图Henri Menke 的分享非常好。我根据自己的需要做了一些调整。但是，当我想为\percent或\name条目着色时，仍然会出现故障。见下文：我试图使用text={\color}选项（参见实例“警告”）用当前颜色为相关文本着色来实现这一点\color。但是，它变得疯狂，我不明白为什么。请注意，这没有帮助。这很奇怪，因为或\textcolor{\color}{\name}选项工作得很好。fill={\color!50}draw={\color}

% Pie chart with colors
% Author: Henri Menke
\documentclass[tikz,border=10pt]{standalone}

\begin{document}
\def\angle{0}
\def\radius{3}
\def\cyclelist{{"orange","blue","red","green","black","pink"}}
\newcount\cyclecount
\cyclecount=-1
\newcount\ind
\ind=-1
\begin{tikzpicture}[cap=round,join=round]
  \foreach \percent/\name in {
      20/term 1,
      20/term 2,
      20/term 3,
      20/term 4,
      20/term 5,
    } {
      \ifx\percent\empty\else               % If \percent is empty, do nothing
        \global\advance\cyclecount by 1     % Advance cyclecount
        \global\advance\ind by 1            % Advance list index
        \ifnum5<\cyclecount                 % If cyclecount is larger than list
          \global\cyclecount=0              %   reset cyclecount and
          \global\ind=0                     %   reset list index
        \fi
        \pgfmathparse{\cyclelist[\the\ind]} % Get color from cycle list
        \edef\color{\pgfmathresult}         %   and store as \color
        % Draw angle and set labels
        \draw[fill={\color!50},draw=white] (0,0) -- (\angle:\radius) arc (\angle:\angle+\percent*3.6:\radius) -- cycle;
        \node[text={\color}] at (\angle+0.5*\percent*3.6:0.8*\radius) {\percent}; % WARNING
        \draw (\angle+0.5*\percent*3.6:\radius)--(\angle+0.5*\percent*3.6:1.2*\radius)node[circle,fill=white,inner sep=0pt,text={\color}]{\name}; % WARNING
        \filldraw (\angle+0.5*\percent*3.6:\radius) circle (1pt);
        \pgfmathparse{\angle+\percent*3.6}  % Advance angle
        \xdef\angle{\pgfmathresult}         %   and store in \angle
      \fi
    };
\end{tikzpicture}
\end{document}

饼形图

答案1

\color我猜重新定义（已经存在设置文本颜色）不是一个好主意。使用不同的名称，例如\mycolor：

在此处输入图片描述

\documentclass[tikz,border=10pt]{standalone}

\begin{document}
\def\angle{0}
\def\radius{3}
\def\cyclelist{{"orange","blue","red","green","black","pink"}}
\newcount\cyclecount
\cyclecount=-1
\newcount\ind
\ind=-1
\begin{tikzpicture}[cap=round,join=round]
  \foreach \percent/\name in {
      20/term 1,
      20/term 2,
      20/term 3,
      20/term 4,
      20/term 5,
    } {
      \ifx\percent\empty\else               % If \percent is empty, do nothing
        \global\advance\cyclecount by 1     % Advance cyclecount
        \global\advance\ind by 1            % Advance list index
        \ifnum5<\cyclecount                 % If cyclecount is larger than list
          \global\cyclecount=0              %   reset cyclecount and
          \global\ind=0                     %   reset list index
        \fi
        \pgfmathparse{\cyclelist[\the\ind]} % Get color from cycle list
        \edef\mycolor{\pgfmathresult}         %   and store as \mycolor
        % Draw angle and set labels
        \draw[fill={\mycolor!50},draw=white] (0,0) -- (\angle:\radius) arc (\angle:\angle+\percent*3.6:\radius) -- cycle;
        \node[text={\mycolor}] at (\angle+0.5*\percent*3.6:0.8*\radius) {\percent}; % WARNING
        \draw (\angle+0.5*\percent*3.6:\radius)--(\angle+0.5*\percent*3.6:1.2*\radius)node[circle,fill=white,inner sep=0pt,text={\mycolor}]{\name}; % WARNING
        \filldraw (\angle+0.5*\percent*3.6:\radius) circle (1pt);
        \pgfmathparse{\angle+\percent*3.6}  % Advance angle
        \xdef\angle{\pgfmathresult}         %   and store in \angle
      \fi
    };
\end{tikzpicture}
\end{document}

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