Circles on a Map

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Circles on a Map

✓ Published0🌍 Public

Last edited May 6, 2020

Created on May 6, 2020

This visualization displays the global distribution of new COVID-19 cases using proportional circles positioned by country centroids on a natural Earth projection. The circle areas encode population data loaded from CSV files, while tooltips reveal exact values on hover. Built with D3 v5, the visualization uses d3.geoPath for map rendering, d3.geoCentroid for positioning, d3.scaleSqrt for circle sizing, and d3.zoom for pan and zoom interactions. A size legend with d3.ticks communicates the scale, and world atlas TopoJSON provides the country boundaries.

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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