"HistoricalCountry" 多边形
新的地理实体领域 "HistoricalCountry" 提供了大量关于历史实体的有用数据.
罗马帝国跨越的时间.
In[1]:=
Entity["HistoricalCountry",
"RomanEmpire"][{EntityProperty["HistoricalCountry", "StartDate"],
EntityProperty["HistoricalCountry", "EndDate"]}]Out[1]=
以下为罗马帝国的最大版图.
In[2]:=
GeoGraphics[{EdgeForm[Black], FaceForm[Red],
Polygon[Entity["HistoricalCountry", "RomanEmpire"]]},
GeoBackground -> "ReliefMap", GeoGridLines -> Automatic]Out[2]=
以下为蒙古帝国的的最大版图.
In[3]:=
Entity["HistoricalCountry",
"MongolEmpire"][{EntityProperty["HistoricalCountry", "StartDate"],
EntityProperty["HistoricalCountry", "EndDate"]}]Out[3]=
In[4]:=
GeoGraphics[{EdgeForm[Black], FaceForm[Red],
Polygon[Entity["HistoricalCountry", "MongolEmpire"]]},
GeoBackground -> "ReliefMap", GeoGridLines -> Automatic]Out[4]=
