Equal Earth 保留了什么
把球面展开成平面必然改变某些特征。Equal Earth 保留相对面积，适合比较国家大小，但不能同时保留所有形状、距离和方向。切换到地球仪，观察边缘国家的压缩。根据问题选择地图，而不是期待一张地图解释一切。
地图改变了什么
Equal Earth于2018年发表，让相同实际面积在同一比例尺的平面图上占据相同面积，但形状、距离和方向仍会改变。地球仪边缘的国家看起来受压缩，是观察角度造成的。比较前请把国家移到中央。
来源: PROJ · Equal Earth (Šavrič, Patterson & Jenny, 2018) · Esri ArcUser · Equal Earth design background (Winter 2019) · Šavrič, Jenny & Patterson · Equal Earth: design, adoption and impact (2019) · Library of Congress · Geospatial reference data: projection properties · D3 · Geographic projections · Natural Earth · Dataset scales
Sources and further reading
Sources checked:
- PROJ · Equal Earth (Šavrič, Patterson & Jenny, 2018) ↗
- Esri ArcUser · Equal Earth design background (Winter 2019) ↗
- Šavrič, Jenny & Patterson · Equal Earth: design, adoption and impact (2019) ↗
- Library of Congress · Geospatial reference data: projection properties ↗
- D3 · Geographic projections ↗
- Natural Earth · Dataset scales ↗
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