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完成 MWE

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完成 MWE

tikz chronology.sty 是否可用于创建时间轴，例如年-季度。即在整数年份之间以 0.25 为间隔。例如，2002 2002.25、2002.5、2002.75、2003……（或 2002Q1、2002Q2……）我尝试将参数 [7] 更改为 [7.25] 等，但效果不佳。有什么想法吗？MWE 如下

 \begin{chronology}[7]{2002}{2016}{3ex}{\textwidth}

我使用上述语句的完整代码如下。

\documentclass[11pt]{article}
\usepackage{chronology}

\usepackage{chronology} 

%\newcounter{step}\newcounter{stepstart}\newcounter{stepstop}%
%\newcounter{yearstart}\newcounter{yearstop}\newcounter{deltayears}%
%\newlength{\xstart}\newlength{\xstop}%
%\newlength{\unit}\newlength{\timelinewidth}%
%\newsavebox{\timelinebox}%

\renewenvironment{chronology}[5][5]{%
  \setcounter{step}{#1}%
  \setcounter{yearstart}{#2}\setcounter{yearstop}{#3}%
  \setcounter{deltayears}{\theyearstop-\theyearstart}%
  \setlength{\unit}{#4}%
  \setlength{\timelinewidth}{#5}%
  \pgfmathsetcounter{stepstart}%
    {\theyearstart+\thestep-mod(\theyearstart,\thestep)}%
  \pgfmathsetcounter{stepstop}{\theyearstop-mod(\theyearstop,\thestep)}%
  \addtocounter{step}{\thestepstart}%
  \begin{lrbox}{\timelinebox}%
    \begin{tikzpicture}[baseline={(current bounding box.north)}]%
      \draw [|->] (0,0) -- (\thedeltayears*\unit+\unit, 0);%
      \foreach \x in {1,...,\thedeltayears}%
        \draw[xshift=\x*\unit] (0,-.1\unit) -- (0,.1\unit);%
      \addtocounter{deltayears}{1}%
      \foreach \x in {\thestepstart,\thestep,...,\thestepstop}{%
        \pgfmathsetlength\xstop{(\x-\theyearstart)*\unit}%
        \draw[xshift=\xstop] (0,-.3\unit) -- (0,.3\unit);%
        \node at (\xstop,0) [below=.2\unit] {\x};}%
}
{%
    \end{tikzpicture}%
  \end{lrbox}%
  \raisebox{2ex}{\resizebox{\timelinewidth}{!}{\usebox{\timelinebox}}}}%
\renewcommand{\event}[3][e]{%
  \pgfmathsetlength\xstop{(#2-\theyearstart)*\unit}%
    \pgfmathsetlength\xstart{(#1-\theyearstart)*\unit}%
    \draw[fill=black,draw=none,opacity=0.5,rounded corners=.2\unit]%
      (\xstart,-.2\unit) rectangle%
      node[opacity=1,rotate=45,right=.5\unit] {#3} (\xstop,.2\unit);%
}%





\begin{document}
    \begin{figure}[htbp]\centering
    \noindent\begin{chronology}[7]{2002}{2016}{3ex}{\textwidth}
    \end{chronology}
    \end{figure}
\end{document}

答案1

好吧，这个chronology包没有或者说文档很少。所以我认为最好自己画出来。我创建了一个带有一些样式的命令：

\drawtimeline[tikz options]{from year}{to year}{size};

所以你可以

\documentclass[margin=5mm]{standalone}
\usepackage{tikz}
\usetikzlibrary{arrows.meta}% Unecessary (only here for the second example)
\usepackage{mychronology}% Code for this "pkg" is below

\begin{document}
    \begin{tikzpicture}[event/.style={very thick, solid, line cap=round}]
        \drawtimeline[%
            gray,
            timeline style={thick},
            labeled years step=6,
            minor tick step=0.25]{2002}{2016}{10cm};
        \drawtimeline[
            yshift=-2cm,
            labeled years step=2,
            timeline style={-stealth, shorten <=-5pt, very thick},
            year tick style={{Triangle[reversed,scale=0.75]}-, tick size=5pt,yshift=2.5pt},
            minor tick style={tick size=2pt, yshift=1pt},
            year label style={anchor=west, rotate=60,
                              outer sep=2pt, yshift=4pt}]{2002}{2016}{10cm};
         \draw[event, red] (Y-2002-2) -- (Y-2003);
    \end{tikzpicture}
\end{document}

enter image description here

该命令会创建类似 的坐标(Y-YEAR)，(Y-YEAR-MINORDIVISION)如果任何事件要在时间线中间显示。还有几种样式可供自定义：

timeline style % Appends to the style 'timeline'
year label style % Appends to the style 'year label'
year tick style % Appends to the style 'year tick'
minor tick style % Appends to the style 'minor tick'
tick size % Sets the tick size (to be used inside 'year tick' and 'minor tick'
labeled years step % Sets the step between labeled years
minor tick step % Sets the step of ticks between years
year tick step % Sets the step of year ticks
enlarge timeline % Enlarges the arrow side of the timeline

此外，时间线是在接收给予的选项的范围内绘制的\drawtimeline，因此如果直接传递某个键，\drawtimeline它将应用于所有路径规范，对于本地定制使用适当的样式。

完成 MWE

\documentclass[margin=5mm]{standalone}
\usepackage{tikz}
\usetikzlibrary{arrows.meta}% Unecessary (only for the second example)

\tikzset{
  timeline/.style={-latex}%
  ,timeline style/.style={timeline/.append style={#1}}%
  ,year label/.style={below}%
  ,year label style/.style={year label/.append style={#1}}%
  ,year tick/.style={tick size=5pt}%
  ,year tick style/.style={year tick/.append style={#1}}%
  ,minor tick/.style={tick size=2pt, very thin}%
  ,minor tick style/.style={minor tick/.append style={#1}}%
  ,tick size/.code={\def\ticksize{#1}}%
  ,labeled years step/.code={\def\yearlabelstep{#1}}%
  ,minor tick step/.code={\def\minortickstep{#1}}%
  ,year tick step/.code={\def\yeartickstep{#1}}%
  ,enlarge timeline/.code={\def\enlarge{#1}}
}
\newcommand*{\drawtimeline}[4][]{%
  \def\fromyear{#2}%
  \def\toyear{#3}%
  \def\timelinesize{#4}%
  \pgfmathsetmacro{\timelinesizept}{\timelinesize}
  \begin{scope}[x=1pt, y=1pt, % Change main units to pt
                labeled years step=1,% Set some defaults
                minor tick step=0.25,%
                enlarge timeline=1.05,%
                year tick step=1,#1]
    \pgfmathsetmacro{\yearticksep}{\timelinesize/((\toyear-\fromyear)/\yeartickstep)}
    \pgfmathsetmacro{\minorticksep}{\timelinesize/((\toyear-\fromyear)/\minortickstep)}
    \pgfmathsetmacro{\minorticklast}{\minorticksep/\minortickstep)}
    \foreach \y[remember=\y as \lasty (initially 0), count=\i from \fromyear] in {0,\yearticksep,...,\timelinesizept}{
        \coordinate (Y-\i) at (\y,0);
        \draw[year tick] (\y,-\ticksize/2) --  ++(0,\ticksize);
        \ifnum\i=\toyear\breakforeach\else
        \foreach \q[count=\j from 0] in {0,\minorticksep,...,\minorticklast}{
            \coordinate (Y-\i-\j) at (\q+\y,0);
            \draw[minor tick] (\q+\y,-\ticksize/2) -- ++(0,\ticksize);
        };\fi
    };

    \pgfmathsetmacro{\nextyear}{int(\fromyear+\yearlabelstep)}
    \foreach \y in {\fromyear,\nextyear,...,\toyear} \node[year label] at (Y-\y) {\y};
    \draw[timeline] (0,0) -- +(\enlarge*\timelinesizept,0);% Timeline
  \end{scope}%
}

\begin{document}
    \begin{tikzpicture}[event/.style={very thick, solid, line cap=round}]
        \drawtimeline[%
            gray,
            timeline style={thick},
            labeled years step=6,
            minor tick step=0.25]{2002}{2016}{10cm};
        \drawtimeline[
            yshift=-2cm,
            labeled years step=2,
            timeline style={-stealth, shorten <=-5pt, very thick},
            year tick style={{Triangle[reversed, scale=0.75]}-, tick size=5pt, yshift=2.5pt},
            minor tick style={tick size=2pt, yshift=1pt},
            year label style={anchor=west, rotate=60, outer sep=2pt, yshift=4pt}]{2002}{2016}{10cm};
         \draw[event, red] (Y-2002-2) -- (Y-2003);
    \end{tikzpicture}
\end{document}

代码mychronology（未经测试）

\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{mychronology}[2017/01/18 For timelines drawings]
\RequirePackage{tikz}
\tikzset{
  timeline/.style={-latex}%
  ,timeline style/.style={timeline/.append style={#1}}%
  ,year label/.style={below}%
  ,year label style/.style={year label/.append style={#1}}%
  ,year tick/.style={tick size=5pt}%
  ,year tick style/.style={year tick/.append style={#1}}%
  ,minor tick/.style={tick size=2pt, very thin}%
  ,minor tick style/.style={minor tick/.append style={#1}}%
  ,tick size/.code={\def\ticksize{#1}}%
  ,labeled years step/.code={\def\yearlabelstep{#1}}%
  ,minor tick step/.code={\def\minortickstep{#1}}%
  ,year tick step/.code={\def\yeartickstep{#1}}%
  ,enlarge timeline/.code={\def\enlarge{#1}}
}
\newcommand*{\drawtimeline}[4][]{%
  \def\fromyear{#2}%
  \def\toyear{#3}%
  \def\timelinesize{#4}%
  \pgfmathsetmacro{\timelinesizept}{\timelinesize}
  \begin{scope}[%
      x=1pt, y=1pt, % Change main units to pt
      labeled years step=1,% Set some defaults
      minor tick step=0.25,%
      enlarge timeline=1.05,%
      year tick step=1,#1]
    \pgfmathsetmacro{\yearticksep}{\timelinesize/((\toyear-\fromyear)/\yeartickstep)}
    \pgfmathsetmacro{\minorticksep}{\timelinesize/((\toyear-\fromyear)/\minortickstep)}
    \pgfmathsetmacro{\minorticklast}{\minorticksep/\minortickstep)}
      \foreach \y[remember=\y as \lasty (initially 0), count=\i from \fromyear] in {0,\yearticksep,...,\timelinesizept}{
      \coordinate (Y-\i) at (\y,0);
      \draw[year tick] (\y,-\ticksize/2) --  ++(0,\ticksize);
      \ifnum\i=\toyear\breakforeach\else
      \foreach \q[count=\j from 0] in {0,\minorticksep,...,\minorticklast}{
      \coordinate (Y-\i-\j) at (\q+\y,0);
      \draw[minor tick] (\q+\y,-\ticksize/2) -- ++(0,\ticksize);
      };\fi
    };
    \pgfmathsetmacro{\nextyear}{int(\fromyear+\yearlabelstep)}
    \foreach \y in {\fromyear,\nextyear,...,\toyear} \node[year label] at (Y-\y) {\y};
    \draw[timeline] (0,0) -- +(\enlarge*\timelinesizept,0);% Timeline
  \end{scope}%
}
\endinput

答案2

chronos这是一个经过专门扩展以提供此类至少基本功能的示例。

以下是几个非常基本的例子：

two timelines

\documentclass[border=10pt,tikz]{standalone}
\usepackage{pgfcalendar}
\usepackage{datenumber,xparse,fp}
\usetikzlibrary{arrows.meta,backgrounds,fixedpointarithmetic}
\makeatletter
\ExplSyntaxOn
\tl_new:N \l_chronos_date_tl
\tl_new:N \l_chronos_dateformat_tl
\tl_new:N \l_chronos_year_tl
\tl_new:N \l_chronos_yearformat_tl
\tl_set:Nn \l_chronos_dateformat_tl { !d/!m/!Y }
\tl_set:Nn \l_chronos_yearformat_tl { !Y }
% YY yn lle YYYY
\cs_new_protected_nopar:Npn \chronos_year_shorten:n #1
{
  \chronos_year_shorten_aux:w #1 \q_stop % expl3 manuaal, 46
}
\cs_new_protected_nopar:Npn \chronos_year_shorten_aux:w #1 #2 #3 #4 \q_stop
{
  #3 #4
}
\cs_generate_variant:Nn \chronos_year_shorten:n { V , v }
\cs_generate_variant:Nn \int_abs:n { v }
\cs_generate_variant:Nn \tl_replace_all:Nnn { Nnx }
% dangos dyddiadau
\cs_new_protected_nopar:Npn \chronos_show_date:n #1
{% ateb Joseph Wright: http://tex.stackexchange.com/a/327642/
  \tl_set_eq:NN \l_chronos_date_tl \l_chronos_dateformat_tl
  \tl_replace_all:Nnx \l_chronos_date_tl { !a } { \pgfcalendarweekdayshortname{\thechronos@weekday} }
  \tl_replace_all:Nnx \l_chronos_date_tl { !A } { \pgfcalendarweekdayname{\thechronos@weekday} }
  \tl_replace_all:Nnx \l_chronos_date_tl { !b } { \pgfcalendarmonthshortname{\csname chronos@#1month\endcsname} }
  \tl_replace_all:Nnx \l_chronos_date_tl { !B } { \pgfcalendarmonthname{\csname chronos@#1month\endcsname} }
  \tl_replace_all:Nnx \l_chronos_date_tl { !d } { \csname chronos@#1day\endcsname }
  \tl_replace_all:Nnx \l_chronos_date_tl { !E } { \chronos_dateformat_era:c { chronos@#1year } }
  \tl_replace_all:Nnx \l_chronos_date_tl { !m } { \csname chronos@#1month\endcsname }
  \tl_replace_all:Nnx \l_chronos_date_tl { !q } { \chronos_dateformat_sign:c { chronos@#1year } }
  \tl_replace_all:Nnx \l_chronos_date_tl { !Q } { \chronos_dateformat_signs:c { chronos@#1year } }
  \tl_replace_all:Nnx \l_chronos_date_tl { !y } { \chronos_year_shorten:v { chronos@#1year } }
  \tl_replace_all:Nnx \l_chronos_date_tl { !Y } { \int_abs:v { chronos@#1year } }
  \l_chronos_date_tl
}
\cs_new_protected_nopar:Npn \chronos_show_year:n #1
{% ateb Joseph Wright: http://tex.stackexchange.com/a/327642/
  \tl_set_eq:NN \l_chronos_year_tl \l_chronos_yearformat_tl
  \tl_replace_all:Nnx \l_chronos_year_tl { !E } { \chronos_dateformat_era:n { #1 } }
  \tl_replace_all:Nnx \l_chronos_year_tl { !q } { \chronos_dateformat_sign:n { #1 } }
  \tl_replace_all:Nnx \l_chronos_year_tl { !Q } { \chronos_dateformat_signs:n { #1 } }
  \tl_replace_all:Nnx \l_chronos_year_tl { !y } { \chronos_year_shorten:n { #1 } }
  \tl_replace_all:Nnx \l_chronos_year_tl { !Y } { \int_abs:n { #1 } }
  \l_chronos_year_tl
}
\cs_new_protected_nopar:Npn \chronos_dateformat_sign:n #1
{
  \int_compare:nT { #1 < 0 } { - }
}
\cs_generate_variant:Nn \chronos_dateformat_sign:n { v }
\cs_new_protected_nopar:Npn \chronos_dateformat_signs:n #1
{
  \int_compare:nTF
  { #1 < 0 } { - }
  {
    \int_compare:nT { #1 > 0 }
    {
      \ifchronos@yearzero\relax
      \else
        \int_compare:nT { #1 > 1} { +  }
      \fi
    }
  }
}
\cs_generate_variant:Nn \chronos_dateformat_signs:n { v }
\cs_new_protected_nopar:Npn \chronos_dateformat_era:n #1
{
  \int_compare:nTF
  { #1 < 0 } { \chronos@yearbce }
  {
    \int_compare:nT { #1 > 0 }
    {
      \ifchronos@yearzero\relax
      \else
        \int_compare:nT { #1 > 1} { \chronos@yearce }
      \fi
    }
  }
}
\cs_generate_variant:Nn \chronos_dateformat_era:n { v }
\cs_new_protected_nopar:Npn \chronos_set_dateformat:n #1
{
  \tl_set:Nn \l_chronos_dateformat_tl { #1 }
  \tl_replace_all:Nnn \l_chronos_dateformat_tl { ~ } { \c_space_token }
}
\cs_new_protected_nopar:Npn \chronos_set_yearformat:n #1
{
  \tl_set:Nn \l_chronos_yearformat_tl { #1 }
  \tl_replace_all:Nnn \l_chronos_yearformat_tl { ~ } { \c_space_token }
}
% user interface
\NewDocumentCommand \chronos@setdateformat { m }
{
  \chronos_set_dateformat:n { #1 }
}
\NewDocumentCommand \chronos@setyearformat { m }
{
  \chronos_set_yearformat:n { #1 }
}
% for pgf/tikz convenience
\NewDocumentCommand \chronos@showdate { o m }
{
  \group_begin:
    \IfValueT { #1 }
    {
      \chronos_set_dateformat:n { #1 }
    }
    \pgfcalendarjuliantoweekday{\csname thechronos@#2date\endcsname}{\c@chronos@weekday}%
    \chronos_show_date:n { #2 }
  \group_end:
}
\NewDocumentCommand \chronos@showyear { o m }
{
  \group_begin:
    \IfValueT { #1 }
    {
      \chronos_set_yearformat:n { #1 }
    }
    \chronos_show_year:n { #2 }
  \group_end:
}
\ExplSyntaxOff
\newlength\chronos@tempdima
\newcounter{chronos@date}
\newcounter{chronos@startdate}
\newcounter{chronos@enddate}
\newcounter{chronos@startyear}
\newcounter{chronos@endyear}
\newcounter{chronos@yeardate}
\newcounter{chronos@thingdate}
\newcounter{chronos@otherthingdate}
\newcounter{chronos@weekday}
\newcounter{chronos@tempcnta}
\newif\ifchronos@marks
\chronos@marksfalse
\newif\ifchronos@marks@minor
\chronos@marks@minorfalse
\newif\ifchronos@timeline@showyears
\chronos@timeline@showyearstrue
\newif\ifchronos@eventyearsonline
\chronos@eventyearsonlinefalse
\newif\ifchronos@yearzero
\chronos@yearzerofalse
\newif\ifchronos@onlytext
\chronos@onlytextfalse
\newif\ifchronos@markeras
\chronos@markerasfalse
\newif\ifchronos@yearsonline
\chronos@yearsonlinefalse
\newif\ifchronos@eventdatessplit
\chronos@eventdatessplitfalse
\pgfkeys{/pgf/number format,
  int detect,
  set thousands separator={},
}
\tikzset{%
  /handlers/.chronos too/.code={%
    \edef\chronos@tempc{\pgfkeyscurrentpath}%
    \edef\chronos@tempd{#1}%
    \tikzset{%
      \pgfkeyscurrentpath @too/.code={%
        \tikzset{%
          /chronos/\chronos@tempd/.append style={##1},
        }%
      },
      \chronos@tempc/.forward to=\chronos@tempc @too,
    }%
  },
  chronos/.code={% http://tex.stackexchange.com/a/159856/ - Claudio Fiandrino
    \tikzset{%
      align=center,
      anchor=mid,
      fixed point arithmetic,
      /chronos/.cd,
      #1,
      timeline config,
      timeline config/.code={},
    }%
    \ifnum\chronos@startyear=\chronos@endyear
      \tikzset{%
        /chronos/timeline no years,
      }%
    \fi
    \setlength\chronos@tempdima{\chronos@timelinemargin}%
    \ifchronos@markeras
      {%
        \chronos@timelinefont
        \pgfmathsetmacro\chronos@tempe{((width("\chronos@bce"))>(width("\chronos@ce"))) ? (width("\chronos@bce")) : (width("\chronos@ce"))}%
        \xdef\chronos@tempf{\chronos@tempe}%
      }%
      \addtolength\chronos@tempdima{\chronos@tempf pt}%
    \fi
    \pgfmathsetmacro\chronos@unit{(\chronos@width-2*\chronos@tempdima)/(\thechronos@enddate-\thechronos@startdate)}%
    \draw [/chronos/timeline@line, line width=\chronos@height] (-\chronos@tempdima,0) coordinate (chronos pre) -- +(\chronos@width,0) coordinate (chronos post);
    \coordinate (chronos base) at (0,-.5*\chronos@height);
    \coordinate (chronos top) at (0,.5*\chronos@height);
    \coordinate (chronos foot) at (0,{-.5*\chronos@height-\chronos@borderheight});
    \coordinate (chronos head) at (0,{.5*\chronos@height+\chronos@borderheight});
    \coordinate (chronos start) at (0,0);
    \coordinate (chronos end) at ([xshift=-\chronos@tempdima]chronos post);
    \ifdim\chronos@borderheight>0pt
      \fill [bottom color=chronos@borderinner, top color=chronos@borderouter] (chronos pre |- chronos head) rectangle (chronos post |- chronos top);
      \fill [top color=chronos@borderinner, bottom color=chronos@borderouter] (chronos pre |- chronos base) rectangle (chronos post |- chronos foot);
    \fi
    \ifchronos@timeline@showyears
      \pgfmathsetcounter{chronos@startyear}{\chronos@startyear}%
      \pgfmathsetcounter{chronos@endyear}{\chronos@endyear}%
      \def\tempa{none}%
      \ifx\chronos@stepfrom\tempa
        \def\tempa{01}%
        \ifx\chronos@startmonth\tempa
          \ifx\chronos@startday\tempa
            \else\stepcounter{chronos@startyear}%
          \fi
          \else\stepcounter{chronos@startyear}%
        \fi
      \else
        \pgfmathsetcounter{chronos@startyear}{\chronos@stepfrom}%
      \fi
      \def\tempa{12}%
      \def\tempb{31}%
      \ifx\chronos@endmonth\tempa
        \ifx\chronos@endday\tempb
          \stepcounter{chronos@endyear}%
        \fi
      \fi
      \ifnum\value{chronos@endyear}<\value{chronos@startyear}\setcounter{chronos@endyear}{\thechronos@startyear}\fi
      \pgfmathsetmacro\chronos@nextstep{int(((\thechronos@startyear+\chronos@stepyears)>\thechronos@endyear) ? \thechronos@endyear : (\thechronos@startyear+\chronos@stepyears))}%
      \ifchronos@yearzero\setcounter{chronos@tempcnta}{1}\else\setcounter{chronos@tempcnta}{0}\fi
      \foreach \b [evaluate=\b as \i using {((\b==0)&&(\thechronos@tempcnta==0)) ? 1 : int(\b)}, remember=\i as \ilast (initially \pi)] in {\thechronos@startyear,\chronos@nextstep,...,\thechronos@endyear} {%
        \ifnum\i=\ilast\relax
        \else
          \pgfcalendardatetojulian{{\i}-01-01}{\c@chronos@yeardate}%
          \ifchronos@yearzero\relax\else\ifnum0<\i\addtocounter{chronos@yeardate}{-366}\fi\fi
          \pgfmathsetmacro\chronos@tempa{(\thechronos@yeardate-\thechronos@startdate)*\chronos@unit}%
          \ifnum\b=\chronos@nextstep
            \ifchronos@marks@minor
              \pgfmathsetmacro\chronos@tempg{((\thechronos@yeardate-\thechronos@startdate)*\chronos@unit)/\chronos@minorsteps}%
              \global\let\chronos@tempg\chronos@tempg
            \fi
          \fi
          \ifchronos@yearsonline
            \node (chronos@year@\i) [/chronos/.cd, timeline@years, timeline year on line] at (\chronos@tempa pt,0) {\chronos@timelinefont\chronos@showyear{\i}};
            \ifchronos@marks
               \path [/chronos/timeline mark on line] (chronos@year@\i.south) -- (chronos@year@\i |- chronos base);
               \path [/chronos/timeline mark on line] (chronos@year@\i.north) --  (chronos@year@\i |- chronos top);
              \ifchronos@marks@minor
                \ifnum\ilast=\pi\relax
                \else
                  \foreach \m [evaluate=\m as \n using {\m-1}] in {2,...,\chronos@minorsteps}
                    \path [/chronos/timeline minor mark on line] ([xshift={-\n*\chronos@tempg pt}]chronos@year@\i.south) -- ([xshift={-\n*\chronos@tempg pt}]chronos@year@\i |- chronos base);
                    \path [/chronos/timeline minor mark on line] ([xshift={-\n*\chronos@tempg pt}]chronos@year@\i.north) --  ([xshift={-\n*\chronos@tempg pt}]chronos@year@\i |- chronos top);
                  \fi
              \fi
            \fi
            \ifchronos@markeras
              \path (chronos pre) +(\chronos@timelinemargin,0) node (chronos@bce) [/chronos/.cd, timeline@years, timeline year on line] {\chronos@timelinefont\chronos@bce};
              \path (chronos post) +(-\chronos@timelinemargin,0) node (chronos@ce) [/chronos/.cd, timeline@years, timeline year on line] {\chronos@timelinefont\chronos@ce};
            \fi
          \else
            \node (chronos@year@\i) [/chronos/.cd, timeline@years, timeline year off line] at (\chronos@tempa pt,0) {\chronos@timelinefont\chronos@showyear{\i}};
            \ifchronos@marks
              \path [shorten <=.5*\chronos@height, /chronos/timeline mark off line] (\chronos@tempa pt, 0) -- (chronos@year@\i) ;
              \ifchronos@marks@minor
                \ifnum\ilast=\pi\relax
                \else
                  \foreach \m  [evaluate=\m as \n using {int(\m-1)}] in {2,...,\chronos@minorsteps}
                    \path [shorten <=.5*\chronos@height, /chronos/timeline minor mark off line] ([xshift={-\n*\chronos@tempg pt}]\chronos@tempa pt,0) coordinate (\ilast-\n) -- (\ilast-\n |- chronos@year@\i.\chronos@timelineyearsanchor);
                  \fi
              \fi
            \fi
            \ifchronos@markeras
              \path (chronos pre) +(\chronos@timelinemargin,0) node (chronos@bce) [/chronos/.cd, timeline@years, timeline year off line] {\chronos@timelinefont\chronos@bce};
              \path (chronos post) +(-\chronos@timelinemargin,0) node (chronos@ce) [/chronos/.cd, timeline@years, timeline year off line] {\chronos@timelinefont\chronos@ce};
            \fi
          \fi
        \fi
      }%
    \else
      \ifchronos@markeras
        \path (chronos pre) +(\chronos@timelinemargin,0) node (chronos@bce) [/chronos/.cd, timeline@years, timeline year off line] {\chronos@timelinefont\chronos@bce};
        \path (chronos post) +(-\chronos@timelinemargin,0) node (chronos@ce) [/chronos/.cd, timeline@years, timeline year off line] {\chronos@timelinefont\chronos@ce};
      \fi
    \fi
    \ifchronos@eventyearsonline
      \tikzset{%
        /chronos/timeline years=on line,
      }%
    \fi
  },
  chronos set date/.code args={#1:#2:#3:#4}{%
    \pgfcalendardatetojulian{{#1}-#2-#3}{\c@chronos@date}%
    \setcounter{chronos@#4date}{\thechronos@date}%
    \ifchronos@yearzero\relax
    \else
      \setcounter{chronos@tempcnta}{#1}%
      \ifnum0<\value{chronos@tempcnta}%
        \addtocounter{chronos@#4date}{-366}%
      \fi
    \fi
    \expandafter\def\csname chronos@#4year\endcsname{#1}%
    \expandafter\def\csname chronos@#4month\endcsname{#2}%
    \expandafter\def\csname chronos@#4day\endcsname{#3}%
  },
  chronos date/.style args={#1-#2-#3}{%
    /tikz/chronos set date/.expanded={#1:#2:#3:thing}%
  },
  chronos period date/.style args={#1-#2-#3}{%
    /tikz/chronos set date/.expanded={#1:#2:#3:otherthing}%
  },
  /chronos/.search also={/tikz},
  /chronos/.cd,
  timeline config/.code={},
  date format/.code={%
    \chronos@setdateformat{#1}%
  },
  year format/.code={%
    \chronos@setyearformat{#1}%
  },
  step years/.store in=\chronos@stepyears,
  minor steps/.store in=\chronos@minorsteps,
  step from year/.store in=\chronos@stepfrom,
  start date/.style args={#1-#2-#3}{%
    /chronos/timeline config/.append code={%
      \tikzset{/tikz/chronos set date/.expanded={#1:#2:#3:start}}%
    },
  },
  end date/.style args={#1-#2-#3}{%
    /chronos/timeline config/.append code={%
      \tikzset{/tikz/chronos set date/.expanded={#1:#2:#3:end}}%
    },
  },
  ce year label/.store in=\chronos@yearce,
  bce year label/.store in=\chronos@yearbce,
  timeline ce label/.store in=\chronos@ce,
  timeline bce label/.store in=\chronos@bce,
  timeline width/.store in=\chronos@width,
  timeline height/.store in=\chronos@height,
  width/.forward to=/chronos/timeline width,
  height/.forward to=/chronos/timeline height,
  timeline border height/.store in=\chronos@borderheight,
  timeline border inner colour/.code={\colorlet{chronos@borderinner}{#1}},
  timeline border outer colour/.code={\colorlet{chronos@borderouter}{#1}},
  timeline mark eras/.is if=chronos@markeras,
  timeline margin/.store in=\chronos@timelinemargin,
  timeline font/.store in=\chronos@timelinefont,
  timeline years anchor/.store in=\chronos@timelineyearsanchor,
  timeline years set/.store in=\chronos@timelineyears,
  timeline years/.is choice,
  timeline years/.forward to=/chronos/timeline years set,
  timeline years/above/.code={%
    \tikzset{%
      /chronos/timeline@years/.style={above, anchor=\chronos@timelineyearsanchor, yshift=.5*\chronos@height},
      /chronos/timeline years anchor=south,
    }%
  },
  timeline years/below/.code={%
    \tikzset{%
      /chronos/timeline@years/.style={below, anchor=\chronos@timelineyearsanchor, yshift=-.5*\chronos@height},
      /chronos/timeline years anchor=north,
    }%
  },
  timeline years/on line/.code={%
    \chronos@yearsonlinetrue
    \tikzset{%
      /chronos/timeline@years/.style={anchor=\chronos@timelineyearsanchor},
      /chronos/timeline years anchor=center,
    }%
  },
  only years/.code={%
    \edef\tempa{}%
    \edef\tempb{#1}%
    \ifx\tempa\tempb\chronos@setdateformat{!Y}\else\chronos@setdateformat{#1}\fi
    \tikzset{%
      /tikz/chronos date/.style={%
        /tikz/chronos set date/.expanded={##1:01:01:thing}%
      },
      /tikz/chronos period date/.style={%
        /tikz/chronos set date/.expanded={##1:01:01:otherthing}%
      },
    }%
  },
  only text/.code={%
    \tikzset{/chronos/only years}%
    \chronos@setdateformat{}%
    \chronos@onlytexttrue
  },
  year zero/.is if=chronos@yearzero,
  background/.code={%
    \colorlet{chronos@background}{#1}%
  },
  timeline marks/.is if=chronos@marks,
  timeline minor marks/.is if=chronos@marks@minor,
  timeline show years/.is if=chronos@timeline@showyears,
  timeline no years/.code={%
    \tikzset{%
      /chronos/timeline show years=false,
    }%
  },
  lines/.style={draw, {Triangle[width=0pt 3,reversed,length=0pt 1.5]}-{Triangle[width=0pt 3,reversed,length=0pt 1.5]}, shorten <={.5*\chronos@height+\chronos@borderheight}},
  events/.style={fill=chronos@background, fill opacity=.75, text opacity=1, draw opacity=1, rounded corners, align=center, font=\footnotesize},
  period/.style={draw},
  period event line/.style={/chronos/lines},
  period event/.style={/chronos/events},
  event line/.style={/chronos/lines},
  event/.style={/chronos/events},
  event years on line/.is if=chronos@eventyearsonline,
  event year on line/.style={/chronos/timeline@years, /chronos/timeline year on line},
  event dates split/.is if=chronos@eventdatessplit,
  event date split/.style={/chronos/event},
  event distance/.store in=\chronos@eventdistance,
  special date/.store in=\chronos@specialdate,
  timeline@line/.style={draw},
  timeline line/.chronos too=timeline@line,
  timeline year off line/.style={fill=chronos@background, text opacity=1, align=center, fill opacity=.75},
  timeline mark off line/.style={draw, {Triangle[width=0pt 3,reversed,length=0pt 1.5]}-, thin, shorten >=-2pt},
  timeline minor mark off line/.style={draw, {Triangle[width=0pt 3,reversed,length=0pt 1.5]}-, very thin, shorten >=-1pt},
  timeline year on line/.style={text=chronos@background, inner sep=1pt, align=center},
  timeline mark on line/.style={draw=chronos@background, shorten >=1.5pt},
  timeline minor mark on line/.style={draw=chronos@background, shorten >=1.5pt},
  timeline mark too/.code={%
    \tikzset{%
      /chronos/.cd,
      timeline mark on line/.append style={#1},
      timeline mark off line/.append style={#1},
    }%
  },
  timeline minor mark too/.code={%
    \tikzset{%
      /chronos/.cd,
      timeline minor marks,
      timeline minor mark on line/.append style={#1},
      timeline minor mark off line/.append style={#1},
    }%
  },
  timeline year too/.code={%
    \tikzset{%
      /chronos/.cd,
      timeline year on line/.append style={#1},
      timeline year off line/.append style={#1},
    }%
  },
  timeline mark/.forward to=/chronos/timeline mark too,
  timeline minor mark/.forward to=/chronos/timeline mark too,
  timeline year/.forward to=/chronos/timeline year too,
  start date=1001-10-01,
  end date=1003-06-14,
  timeline width=100mm,
  timeline height=1pt,
  timeline border height=0pt,
  chronos date=1850-01-01,
  chronos period date=1851-01-01,
  step years=1,
  minor steps=1,
  timeline years=above,
  background=white,
  timeline border inner colour=black,
  timeline border outer colour=chronos@background,
  step from year=none,
  special date=none,
  ce year label={\textsc{ce}},
  bce year label={\textsc{bce}},
  event distance=-10pt,
  timeline ce label={CE},
  timeline bce label={BCE},
  timeline margin=10pt,
  timeline font=\sffamily,
}
\NewDocumentCommand \chronosevent { O {} m O {} +m D () { \chronos@eventdistance } }
{%
  \tikzset{%
    chronos date/.expanded={#2},
  }%
  \pgfmathsetmacro\chronos@offset{(#5 < 0pt) ? (#5-.5*\chronos@height-\chronos@borderheight) : (#5+.5*\chronos@height+\chronos@borderheight)}%
  \pgfmathsetmacro\chronos@anchor{(#5 < 0pt) ? "north" : "south"}%
  \scoped[on background layer]{%
    \ifchronos@eventdatessplit
      \ifchronos@onlytext\relax
      \else
        \pgfmathsetmacro\chronos@invanchor{(#5 < 0pt) ? "south" : "north"}%
        \path [postaction={/chronos/event line, #1}] ({(\thechronos@thingdate-\thechronos@startdate)*\chronos@unit pt},0) -- +(0,-\chronos@offset pt) node [anchor=\chronos@invanchor, /chronos/event date split, #3] {\chronos@showdate{thing}};
      \fi
      \path [postaction={/chronos/event line, #1}] ({(\thechronos@thingdate-\thechronos@startdate)*\chronos@unit pt},0) -- +(0,\chronos@offset pt) node [anchor=\chronos@anchor, /chronos/event, #3] {#4};
    \else
      \path [postaction={/chronos/event line, #1}] ({(\thechronos@thingdate-\thechronos@startdate)*\chronos@unit pt},0) -- +(0,\chronos@offset pt) node [anchor=\chronos@anchor, /chronos/event, #3] {\ifchronos@onlytext\relax\else\chronos@showdate{thing}\\\fi#4};
    \fi
  }%
  \ifchronos@eventyearsonline
    \edef\tempa{none}%
    \edef\tempb{\chronos@specialdate}%
    \ifx\tempa\tempb\else\let\chronos@thingyear\chronos@specialdate\tikzset{/chronos/special date=none}\fi
    \node [/chronos/.cd, event year on line] at ({(\thechronos@thingdate-\thechronos@startdate)*\chronos@unit pt},0) {\chronos@thingyear};
  \fi
}
\NewDocumentCommand \chronosspecialdate { m }
{%
  \tikzset{%
    /chronos/special date=#1,
  }%
}
\NewDocumentCommand \chronosperiod { O {} m O {} m O {} +m D () { \chronos@eventdistance } }
{%
  \tikzset{%
    chronos date/.expanded={#2}, chronos period date/.expanded={#4}
  }%
  \pgfmathsetmacro\chronos@offset{(#7 < 0pt) ? (#7-.5*\chronos@height-\chronos@borderheight) : (#7+.5*\chronos@height+\chronos@borderheight)}%
  \pgfmathsetmacro\chronos@anchor{(#7 < 0pt) ? "north" : "south"}%
  \ifchronos@yearsonline
    \pgfmathsetmacro\chronos@borderoffset{(#7 < 0pt) ? (-.5*\[email protected]*\chronos@borderheight) : (.5*\chronos@height+.5*\chronos@borderheight)}%
    \path [postaction={line width=\chronos@borderheight, /chronos/period, blend mode=overlay, #1}] ({(\thechronos@thingdate-\thechronos@startdate)*\chronos@unit pt},\chronos@borderoffset pt) -- ({(\thechronos@otherthingdate-\thechronos@startdate)*\chronos@unit pt},\chronos@borderoffset pt);
  \else
    \path [postaction={line width=\chronos@height, /chronos/period, #1}] ({(\thechronos@thingdate-\thechronos@startdate)*\chronos@unit pt},0) -- ({(\thechronos@otherthingdate-\thechronos@startdate)*\chronos@unit pt},0);
  \fi
  \scoped[on background layer]{\path [postaction={/chronos/period event line, #3}] ({(.5*\thechronos@otherthingdate+.5*\thechronos@thingdate-\thechronos@startdate)*\chronos@unit pt},0) -- +(0,\chronos@offset pt) node [anchor=\chronos@anchor, /chronos/period event, #5] {\ifchronos@onlytext\relax\else\chronos@showdate{thing}--\chronos@showdate{otherthing}\\\fi#6};}
}
\makeatother
\begin{document}
\begin{tikzpicture}
  [
    chronos={%
      period/.style={draw=gray},
      start date=2002-01-01,
      end date=2016-12-31,
      timeline line={gray, -Latex},
      timeline marks,
      timeline minor marks,
      timeline mark={gray},
      timeline minor mark={gray},
      minor steps=4,
      timeline year={font=\tiny, fill=none},
      timeline margin=5mm,
      timeline width=90mm,
    }
  ]
\end{tikzpicture}

\begin{tikzpicture}
  [
    chronos={%
      period/.style={draw=gray},
      start date=2002-01-01,
      end date=2016-12-31,
      timeline line={darkgray, -Stealth},
      timeline marks,
      timeline minor marks,
      timeline mark={darkgray, ultra thick},
      timeline minor mark={darkgray, thick},
      minor steps=4,
      step years=2,
      timeline year={fill=none},
      timeline margin=5mm,
      timeline width=90mm,
      timeline year={text=darkgray, rotate=90},
      timeline years anchor=west,
    }
  ]
\end{tikzpicture}
\end{document}

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