Japan Country

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✓ Published4🌍 Public

Last edited Jul 9, 2022

Created on Jul 7, 2022

This map of Japan renders land areas as aquamarine shapes with black outlines, using a Mercator projection. The visualization uses topojson data fetched from a GitHub gist, with TopoJSON APIs (`topojson.presimplify`, `topojson.feature`) for simplification and conversion to GeoJSON. It applies D3’s `d3.geoTransform` to filter polygon details based on a threshold, which is adjustable via a range slider, and draws paths with `d3.geoPath` onto an SVG canvas. The map redraws dynamically when the slider changes or the window resizes.

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MIT Licensed

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