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Choropleth Map with Interactive Filtering

✓ Published0🌍 Public
Ffloresh
Last edited Feb 5, 2019
Created on Oct 3, 2018

This choropleth map displays world countries colored by income group, with a legend that filters the map when clicked. Selecting a category dims non-matching countries and highlights the selected group, while the legend also remains interactive. Built with d3.geoPath and d3.geoNaturalEarth1 projection, it loads geographic data from the world-atlas TopoJSON dataset and supports zooming via d3.zoom. The color legend renders SVG circles and text with click handlers, using d3.scaleOrdinal with the color schemeSpectral. Hovering over a country turns it red, and tooltips show the country name and income value.

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MIT Licensed

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