Circles on a Map

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Circles on a Map

✓ Published0🌍 Public

Last edited Mar 1, 2019

Created on Feb 28, 2019

This visualization displays global population estimates for 2018 as semi-transparent teal circles overlaid on a natural Earth projection map. The map uses a light gray sphere background, with countries colored light gray or pink to indicate missing data. Circle radius encodes population magnitude using a square-root scale, with a legend showing tick marks for population values. The example uses D3 v5 APIs including `geoPath`, `geoNaturalEarth1`, `scaleSqrt`, and `geoCentroid`, loading data from the UN population estimates CSV and a TopoJSON world atlas. Hovering a country reveals its population in a tooltip.

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MIT Licensed

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