D3.js map tricks

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D3.js map tricks

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Last edited May 28, 2020

Created on May 28, 2020

This example demonstrates an interactive world map built with D3.js, rendered as SVG, and integrated into a React framework. It visualizes country boundaries using Natural Earth projection via `d3.geoNaturalEarth1` and `d3.geoPath`, with data sourced from the World Atlas TopoJSON files. Map features include zoom and pan controls implemented with `d3.zoom`, hover effects that change country fill colors, and tooltips showing country names derived from TSV metadata. The visualization also displays a styled ocean sphere and uses `topojson.feature` to convert TopoJSON into GeoJSON for rendering.

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A bare minimum HTML page.

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