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过滤

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过滤

我创建了一个基于 0 到 100 之间的值的条形图环境。

在我当前的设置中，数据是从文件读取并解析为单个的\addplot。在现实世界中，我需要说明计划百分比与当前百分比之间的比较。为了从美学上说明这种差异，我需要单独的颜色，根据我的理解，这意味着单独的\addplot宏。

更新：我的方法是无稽之谈。

我的方法是复制环境横条图示例代码中显示并创建另一个宏，名为水平双柱图。此环境将使用两个\addplot调用：

过滤

  • 首先筛选出解析并保存为宏的偶数\addplot行索引\jobname-barchart.export\datatable\pgfplotstableread
  • 第二个\addplot过滤掉奇数行索引解析并保存为\jobname-barchart.export宏\datatable\pgfplotstableread

格式化

  • 每个偶数行索引都是一个\addplot具有颜色的orange。
  • 每个奇数行索引都是一个\addplot带有颜色的blue!65!black。

伪代码

我需要类似x index filter/.code=按行索引过滤表值的功能。我认为条形图对齐后，再次读取数据时，`yticklabels 的名称相同。我不确定这在后台是如何工作的（目前）。

\tikzset{style-addplot-color1/.style={draw=none,fill=blue!65!black}}% addplot bar format
\tikzset{style-addplot-color2/.style={draw=none,fill=orange}}% addplot bar format
\newenvironment{horizontaldualbarchart}
  {\VerbatimOut{\jobname-barchart.export}}
  {\endVerbatimOut
  % Inject BODY into pgfplotstableread
 \pgfplotstableread[col sep=comma, header=false]{\jobname-barchart.export}{\datatable}
   % Use \datatable for plot data
 \begin{tikzpicture}
   \begin{axis}[horizontalbarchartstyle]
     \addplot [style-addplot-color1] table [col sep=comma, y expr=\coordindex, x=0, x index filter/.code{\ifeven\numexpr\coordindex\relax\def\pgfmathresult{}\fi] {\datatable};
     \addplot [style-addplot-color2] table [col sep=comma, y expr=\coordindex, x=0, x index filter/.code{\ifodd\numexpr\coordindex\relax\def\pgfmathresult{}\fi}] {\datatable};
   \end{axis}
 \end{tikzpicture}
  }%

伪输出

\addplot如果我仅添加另一个具有不同样式定义的，但它读取所有相同的行（无过滤），它看起来会是这样的。

在此处输入图片描述

示例代码：

\documentclass{article}
\usepackage{fontspec}
\usepackage{pgfplots,pgfplotstable}
\usepackage{fancyvrb}

\pgfplotsset{horizontalbarchartstyle/.style={
 % symbolic y coords=,% set dict of expected textual y coordinates, we avoid this dup of data by using "yticklabels from table" and "ytick=data"
  axis lines*=left,
  y=10mm,% vertical spacing (define the length of a unit in the y direction )
  xbar,
  bar width=5mm,% bar thickness
  y axis line style = { opacity = 0 },
  x axis line style = { black!35 },
  width=.6\textwidth,% width of chart itself, does not include tick labels
%  xmajorgrids,
  xminorgrids,
  xlabel={}, % optional label below x axis but useless in global style
  xmin=0,
  xmax=100,
  xtick={0,100,...,100},
  minor xtick={25,50,...,75},
  point meta={x},
  nodes near coords={\color{blue!65!black}\pgfmathprintnumber[assume math mode=true]{\pgfplotspointmeta}\%},% puts text (set in "point meta" key) near coordinates.
  every node near coord/.style={font=\bfseries},
  nodes near coords align={horizontal},% alignment of "nodes near coords"
  enlarge y limits={abs=10mm},% add space above and below bars
  yticklabels from table={\datatable}{1}, % necessary for pgfplotstableread data
  ytick=data,
  xticklabel={\pgfmathprintnumber[assume math mode=true]{\tick}\%}, % disable math mode
  x tick label style={font=\footnotesize,black!35},
%  x tick style={opacity=0},
  y tick style={opacity=0},
  y tick label style={font=\raggedright\small,color=orange,align=right,text width=.4\textwidth},
  legend style={font=\footnotesize},
  label style={font=\footnotesize},
  minor grid style={dotted,black!65},
  major grid style={dashed,orange},
  },
 }
\tikzset{style-addplot-color1/.style={draw=none,fill=blue!65!black}}% bar format

\newenvironment{horizontalbarchart}
  {\VerbatimOut{\jobname-barchart.export}}
  {\endVerbatimOut
  % Inject BODY into pgfplotstableread
 \pgfplotstableread[col sep=comma, header=false]{\jobname-barchart.export}{\datatable}
   % Use \datatable for plot data
 \begin{tikzpicture}
   \begin{axis}[horizontalbarchartstyle]
     \addplot [style-addplot-color1] table [col sep=comma, y expr=\coordindex, x=0] {\datatable};
   \end{axis}
 \end{tikzpicture}
  }%


\begin{document}

\begin{horizontalbarchart}
10, Ans
20, Zwåa
30, Drui
40, Vieri
50, Fünfi
\end{horizontalbarchart}

\end{document}

答案1

只需在数据中添加另一列，然后x index为这两个\addplot设置适当的值。请注意，我设置xbar={1pt}为减小间距，并将减小到bar width4mm。还请注意，您的设置text width=.4\textwidth会将的边界框扩展tikzpicture很多，因此，除非您的标签很长，否则我会将其删除。

在此处输入图片描述

\documentclass{article}
\usepackage{fontspec}
\usepackage{pgfplots,pgfplotstable}
\usepackage{fancyvrb}

\pgfplotsset{horizontalbarchartstyle/.style={
 % symbolic y coords=,% set dict of expected textual y coordinates, we avoid this dup of data by using "yticklabels from table" and "ytick=data"
  axis lines*=left,
  y=10mm,% vertical spacing (define the length of a unit in the y direction )
  xbar={1pt},
  bar width=4mm,% bar thickness
  y axis line style = { opacity = 0 },
  x axis line style = { black!35 },
  width=.6\textwidth,% width of chart itself, does not include tick labels
%  xmajorgrids,
  xminorgrids,
  xlabel={}, % optional label below x axis but useless in global style
  xmin=0,
  xmax=100,
  xtick={0,100,...,100},
  minor xtick={25,50,...,75},
  point meta={x},
  nodes near coords={\color{blue!65!black}\pgfmathprintnumber[assume math mode=true]{\pgfplotspointmeta}\%},% puts text (set in "point meta" key) near coordinates.
  every node near coord/.append style={font=\bfseries},
  nodes near coords align={horizontal},% alignment of "nodes near coords"
  enlarge y limits={abs=10mm},% add space above and below bars
  yticklabels from table={\datatable}{2}, % necessary for pgfplotstableread data
  ytick=data,
  xticklabel={\pgfmathprintnumber[assume math mode=true]{\tick}\%}, % disable math mode
  x tick label style={font=\footnotesize,black!35},
%  x tick style={opacity=0},
  y tick style={opacity=0},
  y tick label style={font=\raggedright\small,color=orange,align=right,text width=.4\textwidth},
  legend style={font=\footnotesize},
  label style={font=\footnotesize},
  minor grid style={dotted,black!65},
  major grid style={dashed,orange},
  },
 }
\tikzset{
  style-addplot-color1/.style={draw=none,fill=blue!65!black},
  style-addplot-color2/.style={draw=none,fill=orange},
}% bar format

\newenvironment{horizontaldualbarchart}
  {\VerbatimOut{\jobname-barchart.export}}
  {\endVerbatimOut
  % Inject BODY into pgfplotstableread
 \pgfplotstableread[col sep=comma, header=false]{\jobname-barchart.export}{\datatable}
   % Use \datatable for plot data
 \begin{tikzpicture}
   \begin{axis}[horizontalbarchartstyle]
     \addplot [style-addplot-color1] table [col sep=comma, y expr=\coordindex, x index=0] {\datatable};
     \addplot [style-addplot-color2] table [col sep=comma, y expr=\coordindex, x index=1] {\datatable};
   \end{axis}
 \end{tikzpicture}
  }%


\begin{document}

\begin{horizontaldualbarchart}
9, 10, Ans
15, 20, Zwåa
35, 30, Drui
30, 40, Vieri
42, 50, Fünfi
\end{horizontaldualbarchart}

\end{document}

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