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world map

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AAparna Desi Reddy
Last edited Apr 12, 2026
Created on Apr 12, 2026
Forked from HTML Starter

This world map visualizes population density across countries, with each nation colored on a sequential blue scale from light to dark based on its density value. The map renders in SVG using a Natural Earth projection via d3.geoNaturalEarth1 and d3.geoPath. It loads TopoJSON country boundaries from world-atlas and joins CSV population data by country ID, while a gradient legend shows the density range. Interactive hover tooltips display the country ID and its population density or “No data” when unavailable.

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MIT Licensed

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