Circles on a Map

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Circles on a Map

✓ Published0🌍 Public

Last edited Nov 27, 2020

Created on Nov 27, 2020

This visualization displays the population of each country as a circle on a natural Earth projection map, with the circle’s area proportional to the 2018 population data. Hovering over a country reveals its name and population, while pan and zoom are enabled. The map is rendered as SVG using `d3.geoPath` with a `geoNaturalEarth1` projection, and population data is joined from a CSV to country geometries using `topojson`. A square-root size scale, implemented with `d3.scaleSqrt`, drives the circle radii, and a legend is built through custom `sizeLegend` and `colorLegend` functions.

AI-generated description

Visualizing population by country using circles on a map! The area of each circle corresponds to the population of the country it represents. You can also pan & zoom, and hover over each country for more information.

MIT Licensed

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