我拼凑了以下图画。这使得标记区域的颜色非常困难：
1.xx、2.xx、3.xx、4.xx、5.xx、6.xx、7.xx 和 8.xx。
本质上，我想知道如何为光盘或由线条和圆弧构成的封闭形状添加背景颜色。
图表如下：
被黑的Beamer代码如下：
\documentclass[handout,
10pt]{beamer}
\usepackage{pgfpages}
%\pgfpagesuselayout{2 on 1}[landscape,a4paper,border shrink=5mm]\pgfpageslogicalpageoptions{1}{border code=\pgfusepath{stroke}}\pgfpageslogicalpageoptions{2}{border code=\pgfusepath{stroke}}
\def\pgfsysdriver{pgfsys-dvipdfm.def}
%
\usepackage{pgfplots}
\usetikzlibrary{pgfplots.groupplots}
%
% Use a proper sans serif font
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%
%\renewcommand*\familydefault{\sfdefault} %% Only if the base font of the document is to be sans serif
\usepackage[T1]{fontenc}
\usepackage{lmodern}
\usepackage{bm}
\usepackage{xspace}
\usepackage{romanbar}
%\usepackage{amsmath}
\usepackage{siunitx}
%
% Proper use of ISO 8601 dates
%
%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% Use fake small caps (better definition required}
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%
\usepackage{relsize}
\newcommand\fakesc[1]{{\relscale{0.8}\MakeUppercase{#1}}}
\renewcommand\textsc[1]{{\fakesc{#1}}}
%\usepackage{longtable}
%\usepackage{lscape}
\usepackage[iso,english]{isodate}
%\renewcommand*\date[1]{{\isodate{#1}}}
\usepackage{steinmetz}% for \phasor{t}
\usepackage[UKenglish]{babel}
%\usepackage{hyperref}%
%\hypersetup{pdfstartview=FitH,pdfremotestartview=FitH,pdftitle={Meter Calibration Report},
%pdfauthor={C Malan},pdfsubject={Meter Number 3501876543219},pdfkeywords={3501876543219}}
\pgfplotsset{width=11cm, height=6cm, compat = 1.7}
\usetikzlibrary{patterns}
\makeatother
\mode<presentation>
{
\usetheme{Marburg}
% or ...
% \setbeamercovered{transparent}
% or whatever (possibly just delete it)
}
\setbeamertemplate{footline}[frame number]
\date[Ver 0]{2013-04-01}
%\logo{\hfill\includegraphics[width=3cm]{cpt_logo.eps}}
%\pgfdeclareimage[height=0.05cm]{university-logo}{cpt-logo.jpg}
%\logo{\pgfuseimage{university-logo}}
% Delete this, if you do not want the table of contents to pop up at
% the beginning of each subsection:
%\AtBeginSection[]
%{
% \begin{frame}<beamer>{Outline}
% \tableofcontents[currentsection,currentsubsection]
% \end{frame}
%}
%\usebeamertemplate*{logo}
%\usepackage{graphicx}
\newcommand{\comment}[1]{%
}%
\begin{document}
\sisetup{%
output-decimal-marker = {,}%
,output-exponent-marker = \ensuremath{\mathrm{E}}%
,input-complex-roots = {i}
,output-complex-root = \ensuremath{\mathbf{j}}%
,separate-uncertainty
,parse-numbers=false%
}
\begin{frame}{Four-quadrant metering}
\vfill
The total apparent power can end up in any of the four quadrants.
\uncover<2->{Quadrant \Romanbar{1} (lagging)}
\uncover<3->{and \Romanbar{4} (leading) are the forward or export direction,}
\uncover<4->{with \Romanbar{2} and \Romanbar{3} the reverse or import direction.}
\tikzstyle{txt} = []% [rectangle, rounded corners, minimum width=0cm, minimum height=0cm,text centered, draw=white, fill=white]
\pause{\small
\begin{tikzpicture}
\begin{axis}[height=7cm, width=12cm
,enlargelimits=0.2
,axis lines = middle
,axis line style={draw=none}
%,axis line style={->}
,tick style={color=black}
,xtick = \empty
,xticklabels={}%
,yticklabels={}%
,ytick=\empty
,xlabel style={at=(current axis.right of origin), anchor=west,align=center}
%,xlabel = {$\Re$~(resistive load)}
,ylabel style={at=(current axis.above origin), anchor=south,align=center}
%,ylabel ={(inductive load)\\\si{+kvar}}
,ymin = -5.5, ymax=7,xmin=-8.5, xmax=12,axis equal image ]
\filldraw[white] (axis cs:0,0) circle (4);
\draw (axis cs:-4.5,0) -- (axis cs:-2,0);
\draw[->] (axis cs:2,0) -- (axis cs:5,0) node[anchor=west]{\si{+kW}~(resistive load)};
\draw (axis cs:0,-3) -- (axis cs:0,-4.5);
\draw [->](axis cs:0,3) -- (axis cs:0,5) node[anchor=south,align=center]{(inductive load)\\\si{+kvar}};
\only<5->{
\draw (axis cs:0,-2) -- (axis cs:0,2);
\draw (axis cs:0,0) circle (2);
\node(pp)at (axis cs:1,0)[txt, ]{\footnotesize 1.x.x};
\node(mp)at (axis cs:-1,0)[txt, ]{\footnotesize 2.x.x};
}
\only<6->{
\draw (axis cs:0,0) circle (3);
\node(pq)at (axis cs:0,2.47)[txt, ]{\footnotesize 3.x.x};
\node(pq)at (axis cs:0,-2.47)[txt, ]{\footnotesize 4.x.x};
}
\only<7->{
\draw (axis cs:0,0) circle (4);
\node(pq)at (axis cs:2.45,2.45)[txt,rotate=-45 ]{\footnotesize 5.x.x};
\node(pq)at (axis cs:-2.45,2.45)[txt,rotate=45 ]{\footnotesize 6.x.x};
\node(pq)at (axis cs:-2.45,-2.45)[txt,rotate=-45 ]{\footnotesize 7.x.x};
\node(pq)at (axis cs:2.45,-2.45)[txt,rotate=45 ]{\footnotesize 8.x.x};
}
%\draw[thick] (axis cs:0,0) circle (5);
%\addplot [-stealth, thick, ] coordinates {(3.5,3.5) (4.5,3.5)};
\only<2->{
\node(o) at (axis cs:4.5,3){\Large$\cdot$};
\node(p) at (axis cs:6,3)[anchor=west] {$+P$};
\node(q) at (axis cs:4.5,4.5)[anchor=south] {$+Q$};
\draw[-stealth,very thick] (o) to (p) node {};
\draw[-stealth,very thick] (o) to (q) node {};
\node at (axis cs:4.1,1.5)[anchor=west] {quadrant \Romanbar{1}};
}
\only<3->{
\node(o) at (axis cs:4.5,-3){\Large$\cdot$};
\node(p) at (axis cs:6,-3)[anchor=west] {$+P$};
\node(q) at (axis cs:4.5,-4.5)[anchor=north] {$-Q$};
\draw[-stealth,very thick] (o) to (p) node {};
\draw[-stealth,very thick] (o) to (q) node {};
\node at (axis cs:4.1,-1.5)[anchor=west] {quadrant \Romanbar{4}};
}
\only<4->{
\node(o) at (axis cs:-4.5,3){\Large$\cdot$};
\node(p) at (axis cs:-6,3)[anchor=east] {$-P$};
\node(q) at (axis cs:-4.5,4.5)[anchor=south] {$+Q$};
\draw[-stealth,very thick] (o) to (p) node {};
\draw[-stealth,very thick] (o) to (q) node {};
\node(o) at (axis cs:-4.5,-3){\Large$\cdot$};
\node(p) at (axis cs:-6,-3)[anchor=east] {$-P$};
\node(q) at (axis cs:-4.5,-4.5)[anchor=north] {$-Q$};
\draw[-stealth,very thick] (o) to (p) node {};
\draw[-stealth,very thick] (o) to (q) node {};
\node at (axis cs:-4.1,1.5)[anchor=east] {quadrant \Romanbar{2}};
\node at (axis cs:-4.1,-1.5)[anchor=east] {quadrant \Romanbar{3}};
}
\end{axis}
\end{tikzpicture}
}
\uncover<5->{There are also standard OBIS codes identifying the different energy registers, for example 1.x.x for \si{kWh} consumed.}
\end{frame}
\end{document}
答案1
一种可能性是使用线和弧完全绘制区域轮廓。此外，您可以使用\foreach和scope命令来简化任务。在这种情况下，将所需的颜色预定义为颜色 1、颜色 2 等很方便。
tikz我让你的 MWE 变得更简约一些，并且我用来绘制图表pgfplots（没有axis）以减少代码。
这就是我所拥有的：
\documentclass[%handout,
10pt]{beamer}
\usepackage{tikz}
\usepackage[T1]{fontenc}
\usepackage{lmodern}
\usepackage{romanbar}
\usepackage{siunitx}
\mode<presentation>{\usetheme{Marburg}}
\setbeamertemplate{footline}[frame number]
\tikzstyle{txt} = []
\definecolor{color1}{HTML}{FF6666}
\definecolor{color2}{HTML}{FFB266}
\definecolor{color3}{HTML}{FFFF66}
\definecolor{color4}{HTML}{B2FF66}
\definecolor{color5}{HTML}{66FF66}
\definecolor{color6}{HTML}{66FFB2}
\definecolor{color7}{HTML}{66FFFF}
\definecolor{color8}{HTML}{66B2FF}
\begin{document}
\begin{frame}{Four-quadrant metering}
\vfill
The total apparent power can end up in any of the four quadrants.
\uncover<2->{Quadrant \Romanbar{1} (lagging)}
\uncover<3->{and \Romanbar{4} (leading) are the forward or export direction,}
\uncover<4->{with \Romanbar{2} and \Romanbar{3} the reverse or import direction.}
\pause{\small
\begin{tikzpicture}[scale=0.4]
\useasboundingbox (-12.25,-5.7) rectangle (12.25,7.3); % This prevents the diagram moving around
\draw (-4.5, 0) -- (-2,0);
\draw[->] ( 2 , 0) -- (5,0) node[right]{+\si{kW}~(resistive load)};
\draw ( 0 ,-3) -- (0,-4.5);
\draw[->] ( 0 , 3) -- (0,5) node[above,align=center]{(inductive load)\\+\si{kvar}};
\only<2->{
\fill (4.5,3) circle (2.5pt) node (o) {};
\node(p) at (6,3) [right] {$+P$};
\node(q) at (4.5,4.5)[above] {$+Q\phantom{+}$};
\node at (4.1,1.5)[right] {quadrant \Romanbar{1}};
\draw[-stealth,very thick] (o) to (p);
\draw[-stealth,very thick] (o) to (q);
}
\only<3->{
\fill (4.5,-3) circle (2.5pt) node (o) {};
\node(p) at (6,-3) [right] {$+P$};
\node(q) at (4.5,-4.5)[below] {$-Q\phantom{+}$};
\node at (4.1,-1.5)[right] {quadrant \Romanbar{4}};
\draw[-stealth,very thick] (o) to (p);
\draw[-stealth,very thick] (o) to (q);
}
\only<4->{
\fill (-4.5,3) circle (2.5pt) node (o) {};
\node(p) at (-6,3) [left] {$-P$};
\node(q) at (-4.5,4.5)[above] {$+Q\phantom{+}$};
\node at (-4.1,1.5)[left] {quadrant \Romanbar{2}};
\draw[-stealth,very thick] (o) to (p) node {};
\draw[-stealth,very thick] (o) to (q) node {};
\fill (-4.5,-3) circle (2.5pt) node (o) {};
\node(p) at (-6,-3) [left] {$-P$};
\node(q) at (-4.5,-4.5)[below] {$-Q\phantom{+}$};
\node at (-4.1,-1.5)[left] {quadrant \Romanbar{3}};
\draw[-stealth,very thick] (o) to (p) node {};
\draw[-stealth,very thick] (o) to (q) node {};
}
\only<5->{\foreach\i in {1,2}{
\begin{scope}[rotate=180*\i-270]
\draw[fill=color\i] (2,0) arc (0:180:2) -- cycle;
\node at (0,1) [txt] {\footnotesize\i.x.x};
\end{scope}
}}
\only<6->{\foreach\i in {3,4}{
\begin{scope}[rotate=180*\i-540]
\draw[fill=color\i] (3,0) arc (0:180:3) --++ (1,0) arc (180:0:2) -- cycle;
\node at (0,2.5) [txt] {\footnotesize\i.x.x};
\end{scope}
}}
\only<7->{
\foreach\i in {5,...,8}{
\pgfmathsetmacro\angle{Mod(\i,2)>0?-45:45}
\begin{scope}[rotate=90*\i-450]
\draw[fill=color\i] (4,0) arc (0:90:4) --++ (0,-1) arc (90:0:3) -- cycle;
\node at (45:3.5) [txt,rotate=\angle] {\footnotesize\i.x.x};
\end{scope}
}}
\end{tikzpicture}}
\uncover<5->{There are also standard OBIS codes identifying the different energy registers, for example 1.x.x for \si{kWh} consumed.}
\end{frame}
\end{document}
