我正在处理一个pgfgantt文档，其中所有时间线都由实际日期控制，并且标题列表基于 TikZcalendar库显示星期几。我使用并修改了以下代码：使用 TikZ 自定义日历来实现这一点。使用 将日期转换为连续数字pgfcalendardatetojulian。
我现在要做的是给甘特图的背景画布上色，这样工作日就变成白色，星期日（或周末、周六、周日和节假日）就用垂直（浅色）红色条纹突出显示。在 MWE 的图片中，这等于每个红色 S（代表星期日）下方两条红色虚线之间的区域。这意味着使用日历库来确定背景画布的哪些部分应该涂成红色。问题是如何做到这一点？
梅威瑟：
\documentclass{article}
\usepackage[a4paper]{geometry}
\usepackage[utf8]{inputenc} \usepackage[T1]{fontenc}
\usepackage{pgfgantt} \usepackage{pgfcalendar}
\newcount\startdate
\newcount\daynum
\pgfcalendardatetojulian{2012-01-09}{\startdate}
%Redefinition from pgfcalendar.code.tex
\def\pgfcalendarweekdayveryshortname#1{%
\translate{\ifcase#1M\or T\or W\or T\or F\or S\or S\fi}%
}
\protected\def\zzz{% Mod from https://tex.stackexchange.com/q/87550/19384
\pgfcalendarjuliantodate{\numexpr\startdate\relax}{\year}{\month}{\day}%
\pgfcalendarjuliantoweekday\startdate\daynum
{\ifnum\daynum=6\color{red}%
\tiny\pgfcalendarweekdayveryshortname{\daynum}%
\else
\tiny\pgfcalendarweekdayveryshortname{\daynum}%
\fi}%
\global\advance\startdate1}
\begin{document}
\noindent\resizebox{\textwidth}{!}{
\begin{tikzpicture}
\begin{ganttchart}[vgrid={*5{black,dotted},*2{red,dashed}},hgrid,%
y unit chart=5mm,x unit=3mm]{20}
\gantttitle{Plan}{20} \\
\gantttitlelist[
title list options={var=\y,evaluate=\y as \x using
"{\zzz}"}
]{1,...,20}{1} \\
\ganttbar{Task 1}{2}{5} \\
\ganttlinkedbar{Task 2}{6}{8} \\
\ganttlinkedmilestone{Goal}{9}\\
\end{ganttchart}
\end{tikzpicture}
}
\end{document}
生成的图像添加了一个红色阴影区域，以显示我希望在所有“红日”实现的目标：
答案1
就这样，三年后……
TikZ我的方法是在绘制甘特图后在背景层上绘制矩形。
在下面的示例中，我突出显示了日历中使用的单位，以便您可以根据需要轻松重新定义矩形。（例如，此方法还可用于定义与任务组相对应的水平条纹。）
请注意，这里对工作日的着色（星期六为浅红色，星期日为粗红色）比原始代码中的着色要浅得多（即直接在定义中\pgfcalendarweekdayletter- 参见第 27 行）
剩下要做的事情：
- 自动计算标题行数（将在第75行实现）
- 自动计算图表线条数（将在第 83 行实现）
编辑：现在自动计算周数、第一个周末从何时开始，并且如果日历的第一天是星期日则正确处理。
\documentclass[margin=10pt]{standalone}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{tikz}
\usetikzlibrary{backgrounds,calc,calendar}
\usepackage{pgfgantt}
\usepackage{pgfcalendar}
\usepackage{calc}
\usepackage{ifthen}
%\newcommand{\datenumber}[1]{% to compute the number of days between \mystartdate and a given date. Unused here
% \pgfcalendardatetojulian{#1}{\dtnmbr}%
% \advance\dtnmbr by -\mystrtdt%
% \the\dtnmbr%
%}
%TO BE UPDATED ACCORDING TO YOUR NEEDS
\def\mystartdate{2016-08-29}%starting date of the calendar
\def\myenddate{2016-10-31}%ending date of the calendar
\def\myxunit{.5cm}%width of 1 day
\def\myyunittitle{.5cm}%height of 1 title line
\def\myyunitchart{1cm}%height of 1 chart line
\def\pgfcalendarweekdayletter#1{% define the name of weekdays + formatting
\ifcase#1M\or T\or W\or T\or F\or \textcolor{red!50!white}{S}\or \textcolor{red}{\textbf{S}}\fi
}
%Some calculation for plotting week-ends area
\newcount\myenddatecount
\pgfcalendardatetojulian{\myenddate}{\myenddatecount}
\newcount\mystartdatecount
\pgfcalendardatetojulian{\mystartdate}{\mystartdatecount}
\newcount\mynumberofdays
\mynumberofdays \myenddatecount\relax
\advance \mynumberofdays by -\mystartdatecount\relax% so \mynumberofdays is now the number of days in the calendar
\newcount\mynumberofweeks
\mynumberofweeks\mynumberofdays\relax
\advance \mynumberofweeks by -1\relax
\divide \mynumberofweeks by 7\relax% so we have the number of full weeks
\newcount\myfirstweekday
\pgfcalendarjuliantoweekday{\mystartdatecount}{\myfirstweekday}
\newcount\myfirstweekendshift
\myfirstweekendshift 5\relax
\advance\myfirstweekendshift by -\myfirstweekday\relax
\ifnum \myfirstweekendshift=-1%if first day = sunday
\advance \myfirstweekendshift by 7\relax% the first full weekend will thus begin one week after
\fi
\begin{document}
\begin{ganttchart}[%
hgrid,
vgrid,
x unit = \myxunit,
y unit title = \myyunittitle,
title height = .75,
y unit chart = \myyunitchart,
time slot format=isodate,
canvas/.append style={fill opacity=.1},
]%
{\mystartdate}%
{\myenddate}
\gantttitlecalendar{year}\\
\gantttitlecalendar{month=name}\\
\gantttitlecalendar{day}\\
\gantttitlecalendar{weekday=letter}\\
%So we have 4 title lines
\def\numbttitlelines{4}
\ganttgroup{Group 1}{\mystartdate}{2016-10-14} \\
\ganttbar{Bar 1}{\mystartdate}{2016-09-05}\\
\ganttbar{Bar 2}{2016-09-06}{2016-09-15}\\
\ganttbar{Bar 3}{2016-09-15}{2016-10-12}\\
\ganttmilestone{Milestone}{2016-10-14}%Note that whe didn't add \\ here! (so that last line is not blanck)
%So we have 5 chart lines
\def\numbtchartlines{5}
\begin{scope}[|<->| ,thick] %Display units
\fill [red] (0,0) circle [radius = 2.5pt] node [above left] {origin \texttt{(0,0)}};
\draw [blue] (-1ex,0) --(-1ex,-\myyunittitle) node [midway, right] {\verb| 1*\myyunittitle|};
\draw [blue!33!white] (-1em,0) --(-1em,-\numbttitlelines*\myyunittitle) node [midway, left] {\verb| <# of title lines>*\myyunittitle|};
\draw [green!75!black] (-1ex,-\numbttitlelines*\myyunittitle) --(-1ex,-\numbttitlelines*\myyunittitle-1*\myyunitchart) node [midway, right, anchor=south west] {\verb| 1*\myyunitchart|};
\draw [green] (-1em,-\numbttitlelines*\myyunittitle)--(-1em,-\numbttitlelines*\myyunittitle -\numbtchartlines*\myyunitchart) node [midway, left, anchor=south east] {\verb| <# of chart lines>*\myyunitchart|};
\draw [yellow!50!orange] (0, 4pt-2*\myyunittitle) -- (\myxunit,4pt-2*\myyunittitle) node [right, anchor=base west] {\verb| 1*\myxunit|};
\end{scope}
\begin{scope}[on background layer]%display week-ends
\foreach \i in {0,...,\the\mynumberofweeks}
\fill [red!10]
(\myfirstweekendshift*\myxunit+\i*7*\myxunit,-\numbttitlelines*\myyunittitle)% on the x-absis: shift the number of days before the first Saturday + 7days*\i; on the y-absis: shift down the number of title lines * their height
rectangle
(\myfirstweekendshift*\myxunit+\i*7*\myxunit+2*\myxunit,-\numbttitlelines*\myyunittitle -\numbtchartlines*\myyunitchart);% on the x-absis: add two days (the week-end); on the y-absis: add the number of chartlines*their height
\ifthenelse{\myfirstweekendshift=6}{% if the first day is a sunday, it is not grayed. So draw a rectangle for the first day of the chart.
\fill [red!10]
(0,-\numbttitlelines*\myyunittitle)
rectangle
(1*\myxunit,-\numbttitlelines*\myyunittitle -\numbtchartlines*\myyunitchart);
}{}
\end{scope}
\end{ganttchart}
\end{document}
答案2
就这样，两年后……
用正确的图案填充画布很容易，但对齐却不容易。我试过了。
我相信，绘制亮点并找到正确的锚点是可能的，但并不简单。
我认为解决这个问题的不太引人注目的方法是一个巧妙的vgrid模式：
\documentclass{standalone}
%\usepackage[a4paper]{geometry}
\usepackage[utf8]{inputenc} \usepackage[T1]{fontenc}
\usepackage{pgfgantt} \usepackage{pgfcalendar}
\newcount\startdate
\newcount\daynum
\pgfcalendardatetojulian{2012-01-09}{\startdate}
%Redefinition from pgfcalendar.code.tex
\def\pgfcalendarweekdayveryshortname#1{%
\translate{\ifcase#1M\or T\or W\or T\or F\or S\or S\fi}%
}
\protected\def\zzz{% Mod from http://tex.stackexchange.com/q/87550/19384
\pgfcalendarjuliantodate{\numexpr\startdate\relax}{\year}{\month}{\day}%
\pgfcalendarjuliantoweekday\startdate\daynum
{\ifnum\daynum=6\color{red}%
\tiny\pgfcalendarweekdayveryshortname{\daynum}%
\else
\tiny\pgfcalendarweekdayveryshortname{\daynum}%
\fi}%
\global\advance\startdate1}
\begin{document}
\begin{tikzpicture}
\begin{ganttchart}[ vgrid = { *5{ black, dotted }%
, *1{ red, dashed
, double distance between line centers = 3mm
, transform canvas = { xshift = 1.5mm } }%
, *1{ red!50!white
, line width={3mm-0.4pt} % 0.4pt = thin
, transform canvas = { xshift = -1.5mm } }%
}
, hgrid
, y unit chart = 5mm
, x unit = 3mm
]{1}{20}
\gantttitle{Plan}{20}\\
\gantttitlelist[ title list options = { var = \y
, evaluate = \y as \x using "{\zzz}" }
]{1,...,20}{1}\\
\ganttbar{Task 1}{2}{5}\\
\ganttlinkedbar{Task 2}{6}{8}\\
\ganttlinkedmilestone{Goal}{9}\\
\end{ganttchart}
\end{tikzpicture}
\end{document}
我们用星期日左边的线来画一条双虚线，用右边的线来突出显示该列。顺序很重要，因为双线在虚线时表现不佳，并且不允许透明。我们只是用图案中的第三条线覆盖了它们的中间笔划，并用 适当地变细0.4pt。
结果如下：
答案3
就这样，六年过去了……
我找到了另一种更灵活的解决方案，可以在任意位置插入背景。我使用的 vrule 产生的宽度与要突出显示的范围相同。将其放在背景上，并将画布填充设置为无。
请注意，在我的 POC 中，我还做了一些更改，以按周而不是按天显示。我“阻止”的区块是假期周。
\documentclass[margin=10pt]{standalone}
\usepackage[utf8]{inputenc}
\usepackage{url}
\usepackage{pgfgantt}
\usetikzlibrary{backgrounds}
\newcounter{myWeekNum}
\stepcounter{myWeekNum}
%
\newcommand{\myWeek}{\themyWeekNum
\stepcounter{myWeekNum}
\ifnum\themyWeekNum=53
\setcounter{myWeekNum}{1}
\else\fi
}
%
\def\mystartdate{2019-12-02}%starting date of the calendar
\def\myenddate{2020-06-28}%ending date of the calendar
\def\myxunit{2pt}%width of 1 day
\definecolor{gray}{HTML}{7F7F7F}
\definecolor{blue}{HTML}{1F77B4}
\begin{document}
\newcommand{\holidaytext}{
\begin{scope}[on background layer] % We put all the days we want to block in the background layer
% Double block only need to mention the Holiday once.
\ganttvrule[
vrule/.append style={gray!10, solid, line width=\myxunit*7},
vrule offset=3.5pt,
vrule label node/.append style={black!100, rotate=-45, anchor=north west},
]{Holiday}{2019-12-23}
\ganttvrule[
vrule/.append style={gray!10, solid, line width=\myxunit*7},
vrule offset=3.5pt
]{}{2019-12-30}
% Single block with description
\ganttvrule[
vrule/.append style={gray!10, solid, line width=\myxunit*7},
vrule offset=3.5pt,
vrule label node/.append style={black!100, rotate=-45, anchor=north west}
]{Holiday}{2020-03-23}
% Single block with description
\ganttvrule[
vrule/.append style={gray!10, solid, line width=\myxunit*7},
vrule offset=3.5pt,
vrule label node/.append style={black!100, rotate=-45, anchor=north west}
]{Holiday}{2020-05-18}
\end{scope}
}
\setcounter{myWeekNum}{49}
\ganttset{%
calendar week text={\myWeek{}}%
}
\begin{ganttchart}[
hgrid,
vgrid = {
*{6}{draw=none},dotted
},
time slot format = isodate,
x unit=\myxunit,
y unit chart=15pt,
bar/.append style={rounded corners=2pt, white},
bar left shift=1,
bar right shift=-1,
bar height=.2,
bar top shift=.4,
canvas/.append style={fill=none} % Here we set the canvas fill to non
]{\mystartdate}{\myenddate}
\gantttitlecalendar{year, month=name, week} \\
\ganttbar[bar/.append style={fill=gray}]{Something}{2019-12-02}{2020-06-28} \\
\ganttbar[bar/.append style={fill=gray}]{Some other thing}{2019-12-02}{2019-12-22} \ganttnewline[thin, black]
\ganttbar[bar/.append style={fill=orange}]{Yes it draws on top.}{2019-12-23}{2019-12-29}
\holidaytext
\end{ganttchart}
\end{document}
答案4
如今，已经过去了 9 年……
我必须解决与您类似的问题，但我发现该pgfcalendar包的使用非常方便。
有了这个包，人们可以逐日进行迭代，并根据某些谓词执行操作。
我想将两个指定日期之间的所有周末都涂上颜色：
\newcommand{\vrulesWeekend}[2]{
\let\%=\pgfcalendarshorthand
\pgfcalendar{cal}{#1}{#2}{%
\ifdate{weekend}{%
\ganttvrule{}{\%y0-\%m0-\%d0}%
}{}%
}
}
或者在指定的时间范围内涂色，可能代表假期
\newcommand{\vrulesOverDates}[2]{
\let\%=\pgfcalendarshorthand
\pgfcalendar{cal}{#1}{#2}{%
\ganttvrule{}{\%y0-\%m0-\%d0}%
}
}
可以这样称呼
\begin{scope}[on background layer]
\begin{scope}[/pgfgantt/vrule/.append style={color=green,opacity=0.5}]
\vrulesOverDates{2023-02-06}{2023-03-05}
\end{scope}
\begin{scope}[/pgfgantt/vrule/.append style={gray,opacity=0.7}]
\vrulesWeekend{2022-10-03}{2023-03-31}
\end{scope}
\end{scope}
为了创建与列一样宽的规则，我\ganttvalueof从中获取了宏pgfgantt.sty。这样，我可以创建适合图表指定设置的样式。
vrule/.style={gray!20, line width=\ganttvalueof{x unit}}
总而言之，我们可以在这个 MWE 中证明这一点
\documentclass[10pt]{standalone}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{tikz}
\usepackage{xcolor}
\usepackage{lmodern}
\usetikzlibrary{mindmap}
\usetikzlibrary{backgrounds,shapes.geometric}
\usetikzlibrary{arrows.meta}
\usetikzlibrary{calc}
\usepackage{pgfcalendar}
\usepackage{pgfgantt}
\newcommand{\vrulesOverDates}[2]{
\let\%=\pgfcalendarshorthand
\pgfcalendar{cal}{#1}{#2}{%
\ganttvrule{}{\%y0-\%m0-\%d0}%
}
}
\newcommand{\vrulesWeekend}[2]{
\let\%=\pgfcalendarshorthand
\pgfcalendar{cal}{#1}{#2}{%
\ifdate{weekend}{%
\ganttvrule{}{\%y0-\%m0-\%d0}%
}{}%
}
}
\begin{document}
\begin{tikzpicture}
\begin{ganttchart}[
title height=1,y unit title=5mm,
vgrid={*6{dotted}, {thick,dashed}},
hgrid,
vrule offset=.5,
vrule/.style={gray!20, line width=\ganttvalueof{x unit}},
time slot format=isodate,
canvas/.append style={fill=none}
]{2022-12-12}{2023-01-15}
\gantttitlecalendar{month=name, day}\\
\ganttbar[inline]{FOO}{2022-12-13}{2022-12-19}
\begin{scope}[on background layer]
\begin{scope}[/pgfgantt/vrule/.append style={color=blue,opacity=0.5}]
\vrulesOverDates{2022-12-21}{2023-01-03}
\end{scope}
\begin{scope}[/pgfgantt/vrule/.append style={gray,opacity=0.7}]
\vrulesWeekend{2022-12-12}{2023-01-15}
\end{scope}
\end{scope}
\end{ganttchart}
\end{tikzpicture}
\end{document}
这对我来说非常有效。