Circles on a Map

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Circles on a Map

✓ Published0🌍 Public

Last edited Nov 13, 2020

Created on Nov 13, 2020

This example visualizes population by country using circles positioned on a natural Earth projection map, with circle area proportional to 2018 population data loaded from CSV. The map supports panning and zooming via d3.zoom, and hovering over a country reveals its name and population in a tooltip. The visualization uses d3.geoPath and topojson for rendering country boundaries, d3.scaleSqrt for sizing circles, and d3.scaleOrdinal with schemeSpectral for a color legend, all rendered as SVG with d3 v5.

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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