时间线图的布局和标签的放置

创建浪漫主义时期名人生卒日期的时间线.

In[1]:=

romanticerapeople = DeleteCases[ EntityValue[ Entity["HistoricalPeriod", "RomanticEra"][ "PeopleInvolved"], {"BirthDate", "DeathDate", "Name", "Image", "Occupation"}], {__, _Missing}];

In[2]:=

lifespan = GroupBy[romanticerapeople, Last -> (Tooltip[ Labeled[Interval@#[[1 ;; 2]], #[[3]], "StartBubble"], Labeled[#[[4]], DateDifference[#[[1]], #[[2]], "Year"]]] &)];

用单独行来显示每位作曲家.

In[3]:=

TimelinePlot[lifespan[{"composer"}], PlotLayout -> "Stacked", LabelStyle -> 12, ImageSize -> 550, PlotLabel -> "Romantic Era Composers", PlotTheme -> "Grid"]

Out[3]=

用最少行显示.

In[4]:=

TimelinePlot[lifespan[{"composer"}], PlotLayout -> "Grouped", LabelStyle -> 12, ImageSize -> 550, PlotLabel -> "Romantic Era Composers", PlotTheme -> "Grid"]

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把标签放在时间段的末端.

In[5]:=

lifespan = GroupBy[romanticerapeople, Last -> (Tooltip[ Labeled[Interval@#[[1 ;; 2]], #[[3]], "EndBubble"], Labeled[#[[4]], DateDifference[#[[1]], #[[2]], "Year"]]] &)];

In[6]:=

TimelinePlot[lifespan[{"composer"}], LabelStyle -> 12, ImageSize -> 550, PlotLabel -> "Romantic Era Composers", PlotTheme -> "Grid"]

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如果数据条目太多，空间又有限，可将标签置于时间段的后面.

In[7]:=

lifespan = GroupBy[romanticerapeople, Last -> (Tooltip[Labeled[Interval@#[[1 ;; 2]], #[[3]], After], Labeled[#[[4]], DateDifference[#[[1]], #[[2]], "Year"]]] &)];

In[8]:=

TimelinePlot[Values@lifespan, PlotLayout -> "Grouped", LabelStyle -> 14, AspectRatio -> 1/1.2, ImageSize -> 450, PlotLegends -> LineLegend[Flatten@Keys[lifespan], LegendLayout -> "ReversedColumn"], PlotTheme -> "Web"]

Out[8]=

采用紧凑的布局.

In[9]:=

TimelinePlot[Values@lifespan, PlotLayout -> "Packed", LabelStyle -> 14, AspectRatio -> 1/1.2, ImageSize -> 450, PlotLegends -> LineLegend[Flatten@Keys[lifespan], LegendLayout -> "ReversedColumn"], PlotTheme -> "Web"]

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